gamnit: make `SpriteSet` public so clients can use its services

[nit.git] / c_src / nitc__typing.sep.2.c

diff --git a/c_src/nitc__typing.sep.2.c b/c_src/nitc__typing.sep.2.c
index dffc8b8..b22c4b7 100644 (file)
--- a/c_src/nitc__typing.sep.2.c
+++ b/c_src/nitc__typing.sep.2.c
@@ -1,845 +1,971 @@
 #include "nitc__typing.sep.0.h"
-/* method typing#AVarAssignExpr#accept_typing for (self: AVarAssignExpr, TypeVisitor) */
-void nitc__typing___AVarAssignExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable Variable */;
-val* var2 /* : nullable Variable */;
-val* var_variable /* var variable: nullable Variable */;
+/* method typing$PostTypingVisitor$type_visitor for (self: PostTypingVisitor): TypeVisitor */
+val* nitc__typing___nitc__typing__PostTypingVisitor___type_visitor(val* self) {
+val* var /* : TypeVisitor */;
+val* var1 /* : TypeVisitor */;
+var1 = self->attrs[COLOR_nitc__typing__PostTypingVisitor___type_visitor].val; /* _type_visitor on <self:PostTypingVisitor> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _type_visitor");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 801);
+fatal_exit(1);
+}
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method typing$PostTypingVisitor$type_visitor= for (self: PostTypingVisitor, TypeVisitor) */
+void nitc__typing___nitc__typing__PostTypingVisitor___type_visitor_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__PostTypingVisitor___type_visitor].val = p0; /* _type_visitor on <self:PostTypingVisitor> */
+RET_LABEL:;
+}
+/* method typing$PostTypingVisitor$visit for (self: PostTypingVisitor, ANode) */
+void nitc__typing___nitc__typing__PostTypingVisitor___nitc__parser_nodes__Visitor__visit(val* self, val* p0) {
+val* var_n /* var n: ANode */;
+val* var /* : TypeVisitor */;
+val* var2 /* : TypeVisitor */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var6 /* : Bool */;
+short int var5 /* : Bool */;
+int cltype;
+int idtype;
+short int var_ /* var : Bool */;
+val* var6 /* : nullable MType */;
 short int var7 /* : Bool */;
-val* var8 /* : AExpr */;
-val* var10 /* : AExpr */;
-val* var11 /* : nullable MType */;
-val* var13 /* : nullable MType */;
-val* var14 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-var_v = p0;
+short int var8 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+short int var_13 /* var : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
+short int var17 /* : Bool */;
+var_n = p0;
 {
-{ /* Inline scope#AVarFormExpr#variable (self) on <self:AVarAssignExpr> */
-var2 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarAssignExpr> */
+((void(*)(val* self, val* p0))(var_n->class->vft[COLOR_nitc__parser_nodes__ANode__visit_all]))(var_n, self); /* visit_all on <var_n:ANode>*/
+}
+{
+{ /* Inline typing$PostTypingVisitor$type_visitor (self) on <self:PostTypingVisitor> */
+var2 = self->attrs[COLOR_nitc__typing__PostTypingVisitor___type_visitor].val; /* _type_visitor on <self:PostTypingVisitor> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _type_visitor");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 801);
+fatal_exit(1);
+}
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_variable = var;
-if (var_variable == NULL) {
-var3 = 0; /* is null */
-} else {
-var3 = 1; /* arg is null and recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
-var_other = ((val*)NULL);
 {
-var6 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
+((void(*)(val* self, val* p0))(var_n->class->vft[COLOR_nitc__typing__ANode__accept_post_typing]))(var_n, var); /* accept_post_typing on <var_n:ANode>*/
 }
-var7 = !var6;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+/* <var_n:ANode> isa AExpr */
+cltype = type_nitc__AExpr.color;
+idtype = type_nitc__AExpr.id;
+if(cltype >= var_n->type->table_size) {
+var5 = 0;
+} else {
+var5 = var_n->type->type_table[cltype] == idtype;
 }
-var3 = var4;
+var_ = var5;
+if (var5){
+{
+var6 = ((val*(*)(val* self))(var_n->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var_n); /* mtype on <var_n:ANode(AExpr)>*/
 }
-if (unlikely(!var3)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 960);
-fatal_exit(1);
+if (var6 == NULL) {
+var7 = 1; /* is null */
+} else {
+var7 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var6,((val*)NULL)) on <var6:nullable MType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AAssignFormExpr#n_value (self) on <self:AVarAssignExpr> */
-var10 = self->attrs[COLOR_nitc__parser_nodes__AAssignFormExpr___n_value].val; /* _n_value on <self:AVarAssignExpr> */
-if (unlikely(var10 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1992);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var6,var_other) on <var6:nullable MType(MType)> */
+var12 = var6 == var_other;
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
+}
 }
 var8 = var10;
+goto RET_LABEL9;
 RET_LABEL9:(void)0;
 }
+var7 = var8;
+}
+var4 = var7;
+} else {
+var4 = var_;
 }
+var_13 = var4;
+if (var4){
 {
-{ /* Inline typing#Variable#declared_type (var_variable) on <var_variable:nullable Variable(Variable)> */
-var13 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:nullable Variable(Variable)> */
-var11 = var13;
-RET_LABEL12:(void)0;
+{ /* Inline typing$AExpr$is_typed (var_n) on <var_n:ANode(AExpr)> */
+var16 = var_n->attrs[COLOR_nitc__typing__AExpr___is_typed].s; /* _is_typed on <var_n:ANode(AExpr)> */
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
-{
-var14 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var8, var11);
+var17 = !var14;
+var3 = var17;
+} else {
+var3 = var_13;
 }
-var_mtype = var14;
+if (var3){
 {
-nitc__typing___nitc__typing__TypeVisitor___set_variable(var_v, self, var_variable, var_mtype); /* Direct call typing#TypeVisitor#set_variable on <var_v:TypeVisitor>*/
+{ /* Inline modelbuilder_base$ANode$is_broken= (var_n,1) on <var_n:ANode(AExpr)> */
+var_n->attrs[COLOR_nitc__modelbuilder_base__ANode___is_broken].s = 1; /* _is_broken on <var_n:ANode(AExpr)> */
+RET_LABEL18:(void)0;
 }
-{
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AVarAssignExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AVarAssignExpr> */
-RET_LABEL15:(void)0;
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method typing#AReassignFormExpr#reassign_callsite for (self: AReassignFormExpr): nullable CallSite */
-val* nitc__typing___AReassignFormExpr___reassign_callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val; /* _reassign_callsite on <self:AReassignFormExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+/* method typing$PostTypingVisitor$init for (self: PostTypingVisitor) */
+void nitc__typing___nitc__typing__PostTypingVisitor___core__kernel__Object__init(val* self) {
+{
+((void(*)(val* self))(self->class->vft[COLOR_nitc__typing___nitc__typing__PostTypingVisitor___core__kernel__Object__init]))(self); /* init on <self:PostTypingVisitor>*/
 }
-/* method typing#AReassignFormExpr#reassign_callsite= for (self: AReassignFormExpr, nullable CallSite) */
-void nitc__typing___AReassignFormExpr___reassign_callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val = p0; /* _reassign_callsite on <self:AReassignFormExpr> */
 RET_LABEL:;
 }
-/* method typing#AReassignFormExpr#read_type for (self: AReassignFormExpr): nullable MType */
-val* nitc__typing___AReassignFormExpr___read_type(val* self) {
-val* var /* : nullable MType */;
-val* var1 /* : nullable MType */;
-var1 = self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val; /* _read_type on <self:AReassignFormExpr> */
-var = var1;
+/* method typing$ANode$accept_post_typing for (self: ANode, TypeVisitor) */
+void nitc__typing___ANode___accept_post_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+var_v = p0;
 RET_LABEL:;
-return var;
 }
-/* method typing#AReassignFormExpr#read_type= for (self: AReassignFormExpr, nullable MType) */
-void nitc__typing___AReassignFormExpr___read_type_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = p0; /* _read_type on <self:AReassignFormExpr> */
+/* method typing$ANode$bad_expr_message for (self: ANode, AExpr): nullable String */
+val* nitc__typing___ANode___bad_expr_message(val* self, val* p0) {
+val* var /* : nullable String */;
+val* var_child /* var child: AExpr */;
+var_child = p0;
+var = ((val*)NULL);
+goto RET_LABEL;
 RET_LABEL:;
+return var;
 }
-/* method typing#AReassignFormExpr#resolve_reassignment for (self: AReassignFormExpr, TypeVisitor, MType, MType): nullable MType */
-val* nitc__typing___AReassignFormExpr___resolve_reassignment(val* self, val* p0, val* p1, val* p2) {
-val* var /* : nullable MType */;
-val* var_v /* var v: TypeVisitor */;
-val* var_readtype /* var readtype: MType */;
-val* var_writetype /* var writetype: MType */;
-val* var1 /* : AAssignOp */;
-val* var3 /* : AAssignOp */;
-val* var4 /* : String */;
-val* var_reassign_name /* var reassign_name: String */;
-val* var6 /* : AAssignOp */;
-val* var8 /* : AAssignOp */;
-val* var9 /* : nullable CallSite */;
-val* var_callsite /* var callsite: nullable CallSite */;
-short int var10 /* : Bool */;
-short int var11 /* : Bool */;
+/* method typing$AAttrPropdef$do_typing for (self: AAttrPropdef, ModelBuilder) */
+void nitc__typing___AAttrPropdef___APropdef__do_typing(val* self, val* p0) {
+val* var_modelbuilder /* var modelbuilder: ModelBuilder */;
+short int var /* : Bool */;
+short int var2 /* : Bool */;
+short int var3 /* : Bool */;
+val* var4 /* : nullable MMethodDef */;
+val* var6 /* : nullable MMethodDef */;
+val* var_mpropdef /* var mpropdef: nullable MMethodDef */;
+short int var7 /* : Bool */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
 val* var_other /* var other: nullable Object */;
+short int var11 /* : Bool */;
 short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-val* var17 /* : MSignature */;
-val* var19 /* : MSignature */;
-val* var_msignature /* var msignature: MSignature */;
-val* var20 /* : nullable MType */;
-val* var22 /* : nullable MType */;
-val* var_rettype /* var rettype: nullable MType */;
-short int var23 /* : Bool */;
-long var24 /* : Int */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
 short int var_ /* var : Bool */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
-val* var_other31 /* var other: nullable Object */;
-short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-val* var34 /* : AExpr */;
-val* var36 /* : AExpr */;
-val* var37 /* : Array[MParameter] */;
-val* var39 /* : Array[MParameter] */;
-val* var40 /* : nullable Object */;
-val* var41 /* : MType */;
-val* var43 /* : MType */;
-val* var44 /* : nullable MType */;
-val* var_value_type /* var value_type: nullable MType */;
-short int var45 /* : Bool */;
-short int var46 /* : Bool */;
-short int var48 /* : Bool */;
+val* var14 /* : nullable MSignature */;
+val* var16 /* : nullable MSignature */;
+short int var17 /* : Bool */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+val* var23 /* : TypeVisitor */;
+val* var24 /* : MClassDef */;
+val* var26 /* : MClassDef */;
+val* var27 /* : MModule */;
+val* var29 /* : MModule */;
+val* var_v /* var v: TypeVisitor */;
+val* var30 /* : Variable */;
+val* var32 /* : Variable */;
+val* var34 /* : nullable AExpr */;
+val* var36 /* : nullable AExpr */;
+val* var_nexpr /* var nexpr: nullable AExpr */;
+short int var37 /* : Bool */;
+short int var38 /* : Bool */;
+val* var_other40 /* var other: nullable Object */;
+short int var41 /* : Bool */;
+short int var42 /* : Bool */;
+val* var43 /* : nullable MType */;
+val* var45 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
+val* var46 /* : nullable MType */;
+val* var47 /* : nullable AExpr */;
+val* var49 /* : nullable AExpr */;
+val* var_nblock /* var nblock: nullable AExpr */;
 short int var50 /* : Bool */;
-val* var51 /* : nullable MType */;
-var_v = p0;
-var_readtype = p1;
-var_writetype = p2;
-{
-{ /* Inline parser_nodes#AReassignFormExpr#n_assign_op (self) on <self:AReassignFormExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_assign_op].val; /* _n_assign_op on <self:AReassignFormExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_assign_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2000);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+short int var54 /* : Bool */;
+val* var55 /* : nullable FlowContext */;
+val* var57 /* : nullable FlowContext */;
+short int var58 /* : Bool */;
+short int var59 /* : Bool */;
+static val* varonce;
+val* var60 /* : String */;
+char* var61 /* : CString */;
+val* var62 /* : String */;
+val* var63 /* : nullable Int */;
+val* var64 /* : nullable Int */;
+val* var65 /* : nullable Bool */;
+val* var66 /* : nullable Bool */;
+var_modelbuilder = p0;
+{
+{ /* Inline modelize_property$AAttrPropdef$has_value (self) on <self:AAttrPropdef> */
+var2 = self->attrs[COLOR_nitc__modelize_property__AAttrPropdef___has_value].s; /* _has_value on <self:AAttrPropdef> */
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-{
-var4 = ((val*(*)(val* self))(var1->class->vft[COLOR_nitc__parser_nodes__AAssignOp__operator]))(var1); /* operator on <var1:AAssignOp>*/
+var3 = !var;
+if (var3){
+goto RET_LABEL;
+} else {
 }
-var_reassign_name = var4;
 {
-{ /* Inline typing#AReassignFormExpr#read_type= (self,var_readtype) on <self:AReassignFormExpr> */
-self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = var_readtype; /* _read_type on <self:AReassignFormExpr> */
+{ /* Inline modelize_property$AAttrPropdef$mreadpropdef (self) on <self:AAttrPropdef> */
+var6 = self->attrs[COLOR_nitc__modelize_property__AAttrPropdef___mreadpropdef].val; /* _mreadpropdef on <self:AAttrPropdef> */
+var4 = var6;
 RET_LABEL5:(void)0;
 }
 }
+var_mpropdef = var4;
+if (var_mpropdef == NULL) {
+var8 = 1; /* is null */
+} else {
+var8 = 0; /* arg is null but recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$== (var_mpropdef,((val*)NULL)) on <var_mpropdef:nullable MMethodDef> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AReassignFormExpr#n_assign_op (self) on <self:AReassignFormExpr> */
-var8 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_assign_op].val; /* _n_assign_op on <self:AReassignFormExpr> */
-if (unlikely(var8 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_assign_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2000);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_mpropdef,var_other) on <var_mpropdef:nullable MMethodDef(MMethodDef)> */
+var13 = var_mpropdef == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-var6 = var8;
-RET_LABEL7:(void)0;
 }
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
+}
+var8 = var9;
 }
+var_ = var8;
+if (var8){
+var7 = var_;
+} else {
 {
-var9 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var6, var_readtype, var_reassign_name, 0);
+{ /* Inline model$MMethodDef$msignature (var_mpropdef) on <var_mpropdef:nullable MMethodDef(MMethodDef)> */
+var16 = var_mpropdef->attrs[COLOR_nitc__model__MMethodDef___msignature].val; /* _msignature on <var_mpropdef:nullable MMethodDef(MMethodDef)> */
+var14 = var16;
+RET_LABEL15:(void)0;
 }
-var_callsite = var9;
-if (var_callsite == NULL) {
-var10 = 1; /* is null */
+}
+if (var14 == NULL) {
+var17 = 1; /* is null */
 } else {
-var10 = 0; /* arg is null but recv is not */
+var17 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_callsite,((val*)NULL)) on <var_callsite:nullable CallSite> */
+{ /* Inline kernel$Object$== (var14,((val*)NULL)) on <var14:nullable MSignature> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
-var15 = var_callsite == var_other;
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var14,var_other) on <var14:nullable MSignature(MSignature)> */
+var22 = var14 == var_other;
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
 }
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
-var10 = var11;
+var17 = var18;
 }
-if (var10){
-var = ((val*)NULL);
+var7 = var17;
+}
+if (var7){
 goto RET_LABEL;
 } else {
 }
+var23 = NEW_nitc__typing__TypeVisitor(&type_nitc__typing__TypeVisitor);
 {
-{ /* Inline typing#AReassignFormExpr#reassign_callsite= (self,var_callsite) on <self:AReassignFormExpr> */
-self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val = var_callsite; /* _reassign_callsite on <self:AReassignFormExpr> */
-RET_LABEL16:(void)0;
+{ /* Inline model$MPropDef$mclassdef (var_mpropdef) on <var_mpropdef:nullable MMethodDef(MMethodDef)> */
+var26 = var_mpropdef->attrs[COLOR_nitc__model__MPropDef___mclassdef].val; /* _mclassdef on <var_mpropdef:nullable MMethodDef(MMethodDef)> */
+if (unlikely(var26 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-}
-{
-{ /* Inline typing#CallSite#msignature (var_callsite) on <var_callsite:nullable CallSite(CallSite)> */
-var19 = var_callsite->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_callsite:nullable CallSite(CallSite)> */
-if (unlikely(var19 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 660);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclassdef");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 2354);
 fatal_exit(1);
 }
-var17 = var19;
-RET_LABEL18:(void)0;
+var24 = var26;
+RET_LABEL25:(void)0;
 }
 }
-var_msignature = var17;
 {
-{ /* Inline model#MSignature#return_mtype (var_msignature) on <var_msignature:MSignature> */
-var22 = var_msignature->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var_msignature:MSignature> */
-var20 = var22;
-RET_LABEL21:(void)0;
+{ /* Inline model$MClassDef$mmodule (var24) on <var24:MClassDef> */
+var29 = var24->attrs[COLOR_nitc__model__MClassDef___mmodule].val; /* _mmodule on <var24:MClassDef> */
+if (unlikely(var29 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 588);
+fatal_exit(1);
+}
+var27 = var29;
+RET_LABEL28:(void)0;
 }
-var_rettype = var20;
-{
-var24 = nitc___nitc__MSignature___arity(var_msignature);
 }
 {
-{ /* Inline kernel#Int#== (var24,1l) on <var24:Int> */
-var27 = var24 == 1l;
-var25 = var27;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+((void(*)(val* self, val* p0))(var23->class->vft[COLOR_nitc__typing__TypeVisitor__modelbuilder_61d]))(var23, var_modelbuilder); /* modelbuilder= on <var23:TypeVisitor>*/
 }
+{
+((void(*)(val* self, val* p0))(var23->class->vft[COLOR_nitc__typing__TypeVisitor__mmodule_61d]))(var23, var27); /* mmodule= on <var23:TypeVisitor>*/
 }
-var_ = var25;
-if (var25){
-if (var_rettype == NULL) {
-var28 = 0; /* is null */
-} else {
-var28 = 1; /* arg is null and recv is not */
+{
+((void(*)(val* self, val* p0))(var23->class->vft[COLOR_nitc__typing__TypeVisitor__mpropdef_61d]))(var23, var_mpropdef); /* mpropdef= on <var23:TypeVisitor>*/
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_rettype,((val*)NULL)) on <var_rettype:nullable MType> */
-var_other31 = ((val*)NULL);
 {
-var32 = ((short int(*)(val* self, val* p0))(var_rettype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_rettype, var_other31); /* == on <var_rettype:nullable MType(MType)>*/
+((void(*)(val* self))(var23->class->vft[COLOR_core__kernel__Object__init]))(var23); /* init on <var23:TypeVisitor>*/
 }
-var33 = !var32;
-var29 = var33;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
+var_v = var23;
+{
+{ /* Inline typing$TypeVisitor$selfvariable (var_v) on <var_v:TypeVisitor> */
+var32 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___selfvariable].val; /* _selfvariable on <var_v:TypeVisitor> */
+if (unlikely(var32 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var28 = var29;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _selfvariable");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 51);
+fatal_exit(1);
 }
-var23 = var28;
-} else {
-var23 = var_;
+var30 = var32;
+RET_LABEL31:(void)0;
 }
-if (unlikely(!var23)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 993);
-fatal_exit(1);
 }
 {
-{ /* Inline parser_nodes#AReassignFormExpr#n_value (self) on <self:AReassignFormExpr> */
-var36 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_value].val; /* _n_value on <self:AReassignFormExpr> */
-if (unlikely(var36 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2003);
-fatal_exit(1);
+{ /* Inline typing$APropdef$selfvariable= (self,var30) on <self:AAttrPropdef> */
+self->attrs[COLOR_nitc__typing__APropdef___selfvariable].val = var30; /* _selfvariable on <self:AAttrPropdef> */
+RET_LABEL33:(void)0;
+}
 }
+{
+{ /* Inline parser_nodes$AAttrPropdef$n_expr (self) on <self:AAttrPropdef> */
+var36 = self->attrs[COLOR_nitc__parser_nodes__AAttrPropdef___n_expr].val; /* _n_expr on <self:AAttrPropdef> */
 var34 = var36;
 RET_LABEL35:(void)0;
 }
 }
+var_nexpr = var34;
+if (var_nexpr == NULL) {
+var37 = 0; /* is null */
+} else {
+var37 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+var_other40 = ((val*)NULL);
 {
-{ /* Inline model#MSignature#mparameters (var_msignature) on <var_msignature:MSignature> */
-var39 = var_msignature->attrs[COLOR_nitc__model__MSignature___mparameters].val; /* _mparameters on <var_msignature:MSignature> */
-if (unlikely(var39 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mparameters");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1783);
-fatal_exit(1);
+var41 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other40); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
-var37 = var39;
-RET_LABEL38:(void)0;
+var42 = !var41;
+var38 = var42;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
+var37 = var38;
 }
+if (var37){
 {
-var40 = core___core__SequenceRead___Collection__first(var37);
+{ /* Inline modelize_property$AAttrPropdef$mtype (self) on <self:AAttrPropdef> */
+var45 = self->attrs[COLOR_nitc__modelize_property__AAttrPropdef___mtype].val; /* _mtype on <self:AAttrPropdef> */
+var43 = var45;
+RET_LABEL44:(void)0;
 }
-{
-{ /* Inline model#MParameter#mtype (var40) on <var40:nullable Object(MParameter)> */
-var43 = var40->attrs[COLOR_nitc__model__MParameter___mtype].val; /* _mtype on <var40:nullable Object(MParameter)> */
-if (unlikely(var43 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mtype");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1900);
-fatal_exit(1);
 }
-var41 = var43;
-RET_LABEL42:(void)0;
+var_mtype = var43;
+{
+var46 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_mtype);
 }
+} else {
 }
 {
-var44 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var34, var41);
+{ /* Inline parser_nodes$AAttrPropdef$n_block (self) on <self:AAttrPropdef> */
+var49 = self->attrs[COLOR_nitc__parser_nodes__AAttrPropdef___n_block].val; /* _n_block on <self:AAttrPropdef> */
+var47 = var49;
+RET_LABEL48:(void)0;
 }
-var_value_type = var44;
-if (var_value_type == NULL) {
-var45 = 1; /* is null */
+}
+var_nblock = var47;
+if (var_nblock == NULL) {
+var50 = 0; /* is null */
 } else {
-var45 = 0; /* arg is null but recv is not */
+var50 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_value_type,((val*)NULL)) on <var_value_type:nullable MType> */
-var_other = ((val*)NULL);
+{ /* Inline kernel$Object$!= (var_nblock,((val*)NULL)) on <var_nblock:nullable AExpr> */
+var_other40 = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_value_type,var_other) on <var_value_type:nullable MType(MType)> */
-var50 = var_value_type == var_other;
-var48 = var50;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var53 = ((short int(*)(val* self, val* p0))(var_nblock->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nblock, var_other40); /* == on <var_nblock:nullable AExpr(AExpr)>*/
 }
+var54 = !var53;
+var51 = var54;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
 }
-var46 = var48;
-goto RET_LABEL47;
-RET_LABEL47:(void)0;
-}
-var45 = var46;
+var50 = var51;
 }
-if (var45){
-var = ((val*)NULL);
-goto RET_LABEL;
-} else {
+if (var50){
+{
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var_nblock); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-var51 = nitc__typing___nitc__typing__TypeVisitor___check_subtype(var_v, self, var_rettype, var_writetype, 0);
+{ /* Inline flow$AExpr$after_flow_context (var_nblock) on <var_nblock:nullable AExpr(AExpr)> */
+var57 = var_nblock->attrs[COLOR_nitc__flow__AExpr___after_flow_context].val; /* _after_flow_context on <var_nblock:nullable AExpr(AExpr)> */
+var55 = var57;
+RET_LABEL56:(void)0;
 }
-var = var_rettype;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#AVarReassignExpr#accept_typing for (self: AVarReassignExpr, TypeVisitor) */
-void nitc__typing___AVarReassignExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable Variable */;
-val* var2 /* : nullable Variable */;
-val* var_variable /* var variable: nullable Variable */;
-short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var8 /* : nullable MType */;
-val* var_readtype /* var readtype: nullable MType */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var_other12 /* var other: nullable Object */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-val* var17 /* : nullable MType */;
-val* var19 /* : nullable MType */;
-val* var_writetype /* var writetype: nullable MType */;
-short int var20 /* : Bool */;
-short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-val* var26 /* : nullable MType */;
-val* var_rettype /* var rettype: nullable MType */;
-short int var27 /* : Bool */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-short int var31 /* : Bool */;
-var_v = p0;
-{
-{ /* Inline scope#AVarFormExpr#variable (self) on <self:AVarReassignExpr> */
-var2 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarReassignExpr> */
-var = var2;
-RET_LABEL1:(void)0;
+if (var55 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 840);
+fatal_exit(1);
+} else {
+var58 = nitc___nitc__FlowContext___is_unreachable(var55);
 }
-var_variable = var;
-if (var_variable == NULL) {
-var3 = 0; /* is null */
+var59 = !var58;
+if (var59){
+if (likely(varonce!=NULL)) {
+var60 = varonce;
 } else {
-var3 = 1; /* arg is null and recv is not */
+var61 = "Error: reached end of block; expected `return`.";
+var63 = (val*)(47l<<2|1);
+var64 = (val*)(47l<<2|1);
+var65 = (val*)((long)(0)<<2|3);
+var66 = (val*)((long)(0)<<2|3);
+var62 = core__flat___CString___to_s_unsafe(var61, var63, var64, var65, var66);
+var60 = var62;
+varonce = var60;
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
-var_other = ((val*)NULL);
 {
-var6 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var60); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var7 = !var6;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+} else {
 }
-var3 = var4;
+} else {
 }
-if (unlikely(!var3)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1007);
-fatal_exit(1);
+RET_LABEL:;
 }
-{
-var8 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var_variable);
+/* method typing$AExpr$mtype for (self: AExpr): nullable MType */
+val* nitc__typing___AExpr___mtype(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : nullable MType */;
+var1 = self->attrs[COLOR_nitc__typing__AExpr___mtype].val; /* _mtype on <self:AExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var_readtype = var8;
-if (var_readtype == NULL) {
-var9 = 1; /* is null */
-} else {
-var9 = 0; /* arg is null but recv is not */
+/* method typing$AExpr$mtype= for (self: AExpr, nullable MType) */
+void nitc__typing___AExpr___mtype_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = p0; /* _mtype on <self:AExpr> */
+RET_LABEL:;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_readtype,((val*)NULL)) on <var_readtype:nullable MType> */
-var_other12 = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_readtype,var_other12) on <var_readtype:nullable MType(MType)> */
-var15 = var_readtype == var_other12;
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+/* method typing$AExpr$is_typed for (self: AExpr): Bool */
+short int nitc__typing___AExpr___is_typed(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_nitc__typing__AExpr___is_typed].s; /* _is_typed on <self:AExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AExpr$is_typed= for (self: AExpr, Bool) */
+void nitc__typing___AExpr___is_typed_61d(val* self, short int p0) {
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = p0; /* _is_typed on <self:AExpr> */
+RET_LABEL:;
 }
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+/* method typing$AExpr$implicit_cast_to for (self: AExpr): nullable MType */
+val* nitc__typing___AExpr___implicit_cast_to(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : nullable MType */;
+var1 = self->attrs[COLOR_nitc__typing__AExpr___implicit_cast_to].val; /* _implicit_cast_to on <self:AExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var9 = var10;
+/* method typing$AExpr$implicit_cast_to= for (self: AExpr, nullable MType) */
+void nitc__typing___AExpr___implicit_cast_to_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AExpr___implicit_cast_to].val = p0; /* _implicit_cast_to on <self:AExpr> */
+RET_LABEL:;
 }
-if (var9){
+/* method typing$AExpr$its_variable for (self: AExpr): nullable Variable */
+val* nitc__typing___AExpr___its_variable(val* self) {
+val* var /* : nullable Variable */;
+var = ((val*)NULL);
 goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method typing$AExpr$accept_typing for (self: AExpr, TypeVisitor) */
+void nitc__typing___AExpr___accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : NativeArray[String] */;
+static val* varonce;
+static val* varonce1;
+val* var2 /* : String */;
+char* var3 /* : CString */;
+val* var4 /* : String */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Int */;
+val* var7 /* : nullable Bool */;
+val* var8 /* : nullable Bool */;
+val* var9 /* : String */;
+val* var10 /* : String */;
+var_v = p0;
+if (unlikely(varonce==NULL)) {
+var = NEW_core__NativeArray((int)2l, &type_core__NativeArray__core__String);
+if (likely(varonce1!=NULL)) {
+var2 = varonce1;
+} else {
+var3 = "no implemented accept_typing for ";
+var5 = (val*)(33l<<2|1);
+var6 = (val*)(33l<<2|1);
+var7 = (val*)((long)(0)<<2|3);
+var8 = (val*)((long)(0)<<2|3);
+var4 = core__flat___CString___to_s_unsafe(var3, var5, var6, var7, var8);
+var2 = var4;
+varonce1 = var2;
+}
+((struct instance_core__NativeArray*)var)->values[0]=var2;
 } else {
+var = varonce;
+varonce = NULL;
 }
 {
-{ /* Inline typing#AReassignFormExpr#read_type= (self,var_readtype) on <self:AVarReassignExpr> */
-self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = var_readtype; /* _read_type on <self:AVarReassignExpr> */
-RET_LABEL16:(void)0;
+var9 = core__abstract_text___Object___class_name(self);
 }
+((struct instance_core__NativeArray*)var)->values[1]=var9;
+{
+var10 = ((val*(*)(val* self))(var->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var); /* native_to_s on <var:NativeArray[String]>*/
 }
+varonce = var;
 {
-{ /* Inline typing#Variable#declared_type (var_variable) on <var_variable:nullable Variable(Variable)> */
-var19 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:nullable Variable(Variable)> */
-var17 = var19;
-RET_LABEL18:(void)0;
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var10); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+RET_LABEL:;
 }
-var_writetype = var17;
-if (var_writetype == NULL) {
-var20 = 1; /* is null */
-} else {
-var20 = 0; /* arg is null but recv is not */
+/* method typing$AExpr$comprehension for (self: AExpr): nullable AArrayExpr */
+val* nitc__typing___AExpr___comprehension(val* self) {
+val* var /* : nullable AArrayExpr */;
+val* var1 /* : nullable AArrayExpr */;
+var1 = self->attrs[COLOR_nitc__typing__AExpr___comprehension].val; /* _comprehension on <self:AExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_writetype,((val*)NULL)) on <var_writetype:nullable MType> */
-var_other12 = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_writetype,var_other12) on <var_writetype:nullable MType(MType)> */
-var25 = var_writetype == var_other12;
-var23 = var25;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+/* method typing$AExpr$comprehension= for (self: AExpr, nullable AArrayExpr) */
+void nitc__typing___AExpr___comprehension_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AExpr___comprehension].val = p0; /* _comprehension on <self:AExpr> */
+RET_LABEL:;
 }
+/* method typing$AExpr$vararg_decl for (self: AExpr): Int */
+long nitc__typing___AExpr___vararg_decl(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+var1 = self->attrs[COLOR_nitc__typing__AExpr___vararg_decl].l; /* _vararg_decl on <self:AExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var21 = var23;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+/* method typing$AExpr$vararg_decl= for (self: AExpr, Int) */
+void nitc__typing___AExpr___vararg_decl_61d(val* self, long p0) {
+self->attrs[COLOR_nitc__typing__AExpr___vararg_decl].l = p0; /* _vararg_decl on <self:AExpr> */
+RET_LABEL:;
 }
-var20 = var21;
+/* method typing$ABlockExpr$accept_typing for (self: ABlockExpr, TypeVisitor) */
+void nitc__typing___ABlockExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : ANodes[AExpr] */;
+val* var2 /* : ANodes[AExpr] */;
+val* var_ /* var : ANodes[AExpr] */;
+val* var3 /* : Iterator[ANode] */;
+val* var_4 /* var : Iterator[AExpr] */;
+short int var5 /* : Bool */;
+val* var6 /* : nullable Object */;
+val* var_e /* var e: AExpr */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$ABlockExpr$n_expr (self) on <self:ABlockExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABlockExpr___n_expr].val; /* _n_expr on <self:ABlockExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var20){
-goto RET_LABEL;
-} else {
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1811);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
 }
+}
+var_ = var;
 {
-var26 = nitc__typing___AReassignFormExpr___resolve_reassignment(self, var_v, var_readtype, var_writetype);
+var3 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
 }
-var_rettype = var26;
+var_4 = var3;
+for(;;) {
 {
-nitc__typing___nitc__typing__TypeVisitor___set_variable(var_v, self, var_variable, var_rettype); /* Direct call typing#TypeVisitor#set_variable on <var_v:TypeVisitor>*/
+var5 = ((short int(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_4); /* is_ok on <var_4:Iterator[AExpr]>*/
 }
-if (var_rettype == NULL) {
-var27 = 0; /* is null */
+if (var5){
 } else {
-var27 = 1; /* arg is null and recv is not */
+goto BREAK_label;
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_rettype,((val*)NULL)) on <var_rettype:nullable MType> */
-var_other = ((val*)NULL);
 {
-var30 = ((short int(*)(val* self, val* p0))(var_rettype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_rettype, var_other); /* == on <var_rettype:nullable MType(MType)>*/
+var6 = ((val*(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_4); /* item on <var_4:Iterator[AExpr]>*/
 }
-var31 = !var30;
-var28 = var31;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+var_e = var6;
+{
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var_e); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
+}
+{
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_4); /* next on <var_4:Iterator[AExpr]>*/
 }
-var27 = var28;
 }
+BREAK_label: (void)0;
 {
-{ /* Inline typing#AExpr#is_typed= (self,var27) on <self:AVarReassignExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = var27; /* _is_typed on <self:AVarReassignExpr> */
-RET_LABEL32:(void)0;
+((void(*)(val* self))((((long)var_4&3)?class_info[((long)var_4&3)]:var_4->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_4); /* finish on <var_4:Iterator[AExpr]>*/
+}
+{
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:ABlockExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ABlockExpr> */
+RET_LABEL7:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method typing#AContinueExpr#accept_typing for (self: AContinueExpr, TypeVisitor) */
-void nitc__typing___AContinueExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable AExpr */;
-val* var2 /* : nullable AExpr */;
-val* var_nexpr /* var nexpr: nullable AExpr */;
-short int var3 /* : Bool */;
+/* method typing$ABlockExpr$mtype for (self: ABlockExpr): nullable MType */
+val* nitc__typing___ABlockExpr___AExpr__mtype(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : ANodes[AExpr] */;
+val* var3 /* : ANodes[AExpr] */;
 short int var4 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var8 /* : nullable MType */;
-var_v = p0;
+val* var5 /* : ANodes[AExpr] */;
+val* var7 /* : ANodes[AExpr] */;
+val* var8 /* : nullable Object */;
+val* var9 /* : nullable MType */;
 {
-{ /* Inline parser_nodes#AEscapeExpr#n_expr (self) on <self:AContinueExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AEscapeExpr___n_expr].val; /* _n_expr on <self:AContinueExpr> */
-var = var2;
-RET_LABEL1:(void)0;
+{ /* Inline parser_nodes$ABlockExpr$n_expr (self) on <self:ABlockExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__ABlockExpr___n_expr].val; /* _n_expr on <self:ABlockExpr> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1811);
+fatal_exit(1);
 }
-var_nexpr = var;
-if (var_nexpr == NULL) {
-var3 = 0; /* is null */
-} else {
-var3 = 1; /* arg is null and recv is not */
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
-var_other = ((val*)NULL);
-{
-var6 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
-var7 = !var6;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+{
+var4 = nitc___nitc__ANodes___core__abstract_collection__Collection__is_empty(var1);
 }
-var3 = var4;
+if (var4){
+var = ((val*)NULL);
+goto RET_LABEL;
+} else {
 }
-if (var3){
 {
-var8 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
+{ /* Inline parser_nodes$ABlockExpr$n_expr (self) on <self:ABlockExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABlockExpr___n_expr].val; /* _n_expr on <self:ABlockExpr> */
+if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1811);
+fatal_exit(1);
+}
+var5 = var7;
+RET_LABEL6:(void)0;
 }
-} else {
 }
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AContinueExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AContinueExpr> */
-RET_LABEL9:(void)0;
+var8 = core___core__SequenceRead___last(var5);
 }
+{
+var9 = ((val*(*)(val* self))(var8->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var8); /* mtype on <var8:nullable Object(AExpr)>*/
 }
+var = var9;
+goto RET_LABEL;
 RET_LABEL:;
+return var;
 }
-/* method typing#ABreakExpr#accept_typing for (self: ABreakExpr, TypeVisitor) */
-void nitc__typing___ABreakExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AVardeclExpr$accept_typing for (self: AVardeclExpr, TypeVisitor) */
+void nitc__typing___AVardeclExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable AExpr */;
-val* var2 /* : nullable AExpr */;
-val* var_nexpr /* var nexpr: nullable AExpr */;
+val* var /* : nullable Variable */;
+val* var2 /* : nullable Variable */;
+val* var_variable /* var variable: nullable Variable */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var8 /* : nullable MType */;
+short int var8 /* : Bool */;
+val* var9 /* : nullable AType */;
+val* var11 /* : nullable AType */;
+val* var_ntype /* var ntype: nullable AType */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+short int var17 /* : Bool */;
+val* var_mtype /* var mtype: nullable MType */;
+val* var18 /* : nullable MType */;
+short int var19 /* : Bool */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+val* var25 /* : nullable AExpr */;
+val* var27 /* : nullable AExpr */;
+val* var_nexpr /* var nexpr: nullable AExpr */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+val* var_other31 /* var other: nullable Object */;
+short int var32 /* : Bool */;
+short int var33 /* : Bool */;
+short int var34 /* : Bool */;
+short int var35 /* : Bool */;
+short int var37 /* : Bool */;
+short int var38 /* : Bool */;
+val* var39 /* : nullable MType */;
+val* var_etype /* var etype: nullable MType */;
+short int var40 /* : Bool */;
+short int var41 /* : Bool */;
+short int var43 /* : Bool */;
+short int var45 /* : Bool */;
+short int var46 /* : Bool */;
+short int var47 /* : Bool */;
+short int var49 /* : Bool */;
+short int var50 /* : Bool */;
+val* var51 /* : ModelBuilder */;
+val* var53 /* : ModelBuilder */;
+static val* varonce;
+val* var54 /* : String */;
+char* var55 /* : CString */;
+val* var56 /* : String */;
+val* var57 /* : nullable Int */;
+val* var58 /* : nullable Int */;
+val* var59 /* : nullable Bool */;
+val* var60 /* : nullable Bool */;
+val* var62 /* : NativeArray[String] */;
+static val* varonce61;
+static val* varonce63;
+val* var64 /* : String */;
+char* var65 /* : CString */;
+val* var66 /* : String */;
+val* var67 /* : nullable Int */;
+val* var68 /* : nullable Int */;
+val* var69 /* : nullable Bool */;
+val* var70 /* : nullable Bool */;
+static val* varonce71;
+val* var72 /* : String */;
+char* var73 /* : CString */;
+val* var74 /* : String */;
+val* var75 /* : nullable Int */;
+val* var76 /* : nullable Int */;
+val* var77 /* : nullable Bool */;
+val* var78 /* : nullable Bool */;
+val* var79 /* : String */;
+val* var81 /* : String */;
+val* var82 /* : String */;
+val* var83 /* : nullable MType */;
+short int var84 /* : Bool */;
+short int var85 /* : Bool */;
+short int var87 /* : Bool */;
+short int var89 /* : Bool */;
+val* var_decltype /* var decltype: nullable MType */;
+short int var90 /* : Bool */;
+short int var91 /* : Bool */;
+short int var92 /* : Bool */;
+short int var94 /* : Bool */;
+short int var96 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var97 /* : Bool */;
+int cltype;
+int idtype;
+static val* varonce98;
+val* var99 /* : String */;
+char* var100 /* : CString */;
+val* var101 /* : String */;
+val* var102 /* : nullable Int */;
+val* var103 /* : nullable Int */;
+val* var104 /* : nullable Bool */;
+val* var105 /* : nullable Bool */;
+val* var106 /* : nullable MClass */;
+val* var_objclass /* var objclass: nullable MClass */;
+short int var107 /* : Bool */;
+short int var108 /* : Bool */;
+short int var110 /* : Bool */;
+short int var112 /* : Bool */;
+val* var113 /* : MClassType */;
+val* var115 /* : MClassType */;
+val* var116 /* : MType */;
+short int var117 /* : Bool */;
+short int var118 /* : Bool */;
+short int var120 /* : Bool */;
+short int var122 /* : Bool */;
 var_v = p0;
 {
-{ /* Inline parser_nodes#AEscapeExpr#n_expr (self) on <self:ABreakExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AEscapeExpr___n_expr].val; /* _n_expr on <self:ABreakExpr> */
+{ /* Inline scope$AVardeclExpr$variable (self) on <self:AVardeclExpr> */
+var2 = self->attrs[COLOR_nitc__scope__AVardeclExpr___variable].val; /* _variable on <self:AVardeclExpr> */
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_nexpr = var;
-if (var_nexpr == NULL) {
-var3 = 0; /* is null */
+var_variable = var;
+if (var_variable == NULL) {
+var3 = 1; /* is null */
 } else {
-var3 = 1; /* arg is null and recv is not */
+var3 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+{ /* Inline kernel$Object$== (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
 var_other = ((val*)NULL);
 {
-var6 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
+{ /* Inline kernel$Object$is_same_instance (var_variable,var_other) on <var_variable:nullable Variable(Variable)> */
+var8 = var_variable == var_other;
+var6 = var8;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
-var7 = !var6;
-var4 = var7;
+}
+var4 = var6;
 goto RET_LABEL5;
 RET_LABEL5:(void)0;
 }
 var3 = var4;
 }
 if (var3){
-{
-var8 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
-}
+goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ABreakExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ABreakExpr> */
-RET_LABEL9:(void)0;
+{ /* Inline parser_nodes$AVardeclExpr$n_type (self) on <self:AVardeclExpr> */
+var11 = self->attrs[COLOR_nitc__parser_nodes__AVardeclExpr___n_type].val; /* _n_type on <self:AVardeclExpr> */
+var9 = var11;
+RET_LABEL10:(void)0;
 }
 }
-RET_LABEL:;
+var_ntype = var9;
+if (var_ntype == NULL) {
+var12 = 1; /* is null */
+} else {
+var12 = 0; /* arg is null but recv is not */
 }
-/* method typing#AReturnExpr#accept_typing for (self: AReturnExpr, TypeVisitor) */
-void nitc__typing___AReturnExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable AExpr */;
-val* var2 /* : nullable AExpr */;
-val* var_nexpr /* var nexpr: nullable AExpr */;
-val* var3 /* : nullable MPropDef */;
-val* var5 /* : nullable MPropDef */;
-val* var_mpropdef /* var mpropdef: nullable MPropDef */;
-short int var6 /* : Bool */;
-int cltype;
-int idtype;
-val* var7 /* : nullable MSignature */;
-val* var9 /* : nullable MSignature */;
-val* var10 /* : nullable MType */;
-val* var12 /* : nullable MType */;
-val* var_ret_type /* var ret_type: nullable Object */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-val* var16 /* : nullable MType */;
-val* var18 /* : nullable MType */;
-short int var19 /* : Bool */;
-short int var20 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-short int var24 /* : Bool */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-short int var28 /* : Bool */;
-val* var29 /* : nullable MType */;
-val* var30 /* : nullable MType */;
-static val* varonce;
-val* var31 /* : String */;
-char* var32 /* : NativeString */;
-val* var33 /* : String */;
-short int var34 /* : Bool */;
-short int var35 /* : Bool */;
-short int var37 /* : Bool */;
-short int var38 /* : Bool */;
-static val* varonce39;
-val* var40 /* : String */;
-char* var41 /* : NativeString */;
-val* var42 /* : String */;
-var_v = p0;
+if (0) {
+{ /* Inline kernel$Object$== (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AReturnExpr#n_expr (self) on <self:AReturnExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AReturnExpr___n_expr].val; /* _n_expr on <self:AReturnExpr> */
-var = var2;
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_ntype,var_other) on <var_ntype:nullable AType(AType)> */
+var17 = var_ntype == var_other;
+var15 = var17;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
 }
 }
-var_nexpr = var;
-{
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var5 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var3 = var5;
-RET_LABEL4:(void)0;
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
+var12 = var13;
 }
-var_mpropdef = var3;
-/* <var_mpropdef:nullable MPropDef> isa MMethodDef */
-cltype = type_nitc__MMethodDef.color;
-idtype = type_nitc__MMethodDef.id;
-if(var_mpropdef == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_mpropdef->type->table_size) {
-var6 = 0;
+if (var12){
+var_mtype = ((val*)NULL);
 } else {
-var6 = var_mpropdef->type->type_table[cltype] == idtype;
-}
-}
-if (var6){
-{
-{ /* Inline model#MMethodDef#msignature (var_mpropdef) on <var_mpropdef:nullable MPropDef(MMethodDef)> */
-var9 = var_mpropdef->attrs[COLOR_nitc__model__MMethodDef___msignature].val; /* _msignature on <var_mpropdef:nullable MPropDef(MMethodDef)> */
-var7 = var9;
-RET_LABEL8:(void)0;
-}
-}
-if (var7 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1055);
-fatal_exit(1);
-} else {
-{ /* Inline model#MSignature#return_mtype (var7) on <var7:nullable MSignature> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1795);
-fatal_exit(1);
-}
-var12 = var7->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var7:nullable MSignature> */
-var10 = var12;
-RET_LABEL11:(void)0;
-}
-}
-var_ret_type = var10;
-} else {
-/* <var_mpropdef:nullable MPropDef> isa MAttributeDef */
-cltype14 = type_nitc__MAttributeDef.color;
-idtype15 = type_nitc__MAttributeDef.id;
-if(var_mpropdef == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_mpropdef->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_mpropdef->type->type_table[cltype14] == idtype15;
-}
-}
-if (var13){
 {
-{ /* Inline model#MAttributeDef#static_mtype (var_mpropdef) on <var_mpropdef:nullable MPropDef(MAttributeDef)> */
-var18 = var_mpropdef->attrs[COLOR_nitc__model__MAttributeDef___static_mtype].val; /* _static_mtype on <var_mpropdef:nullable MPropDef(MAttributeDef)> */
-var16 = var18;
-RET_LABEL17:(void)0;
-}
-}
-var_ret_type = var16;
-} else {
-PRINT_ERROR("Runtime error: %s", "Aborted");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1059);
-fatal_exit(1);
-}
+var18 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var_ntype);
 }
-if (var_nexpr == NULL) {
-var19 = 0; /* is null */
+var_mtype = var18;
+if (var_mtype == NULL) {
+var19 = 1; /* is null */
 } else {
-var19 = 1; /* arg is null and recv is not */
+var19 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
 var_other = ((val*)NULL);
 {
-var22 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var24 = var_mtype == var_other;
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
-var23 = !var22;
-var20 = var23;
+}
+var20 = var22;
 goto RET_LABEL21;
 RET_LABEL21:(void)0;
 }
 var19 = var20;
 }
 if (var19){
-if (var_ret_type == NULL) {
-var24 = 0; /* is null */
+goto RET_LABEL;
 } else {
-var24 = 1; /* arg is null and recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#!= (var_ret_type,((val*)NULL)) on <var_ret_type:nullable Object(nullable MType)> */
-var_other = ((val*)NULL);
-{
-var27 = ((short int(*)(val* self, val* p0))(var_ret_type->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ret_type, var_other); /* == on <var_ret_type:nullable MType(MType)>*/
-}
-var28 = !var27;
-var25 = var28;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
 }
-var24 = var25;
 }
-if (var24){
 {
-var29 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_ret_type);
+{ /* Inline parser_nodes$AVardeclExpr$n_expr (self) on <self:AVardeclExpr> */
+var27 = self->attrs[COLOR_nitc__parser_nodes__AVardeclExpr___n_expr].val; /* _n_expr on <self:AVardeclExpr> */
+var25 = var27;
+RET_LABEL26:(void)0;
 }
-} else {
-{
-var30 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
 }
-if (likely(varonce!=NULL)) {
-var31 = varonce;
+var_nexpr = var25;
+if (var_nexpr == NULL) {
+var28 = 0; /* is null */
 } else {
-var32 = "Error: `return` with value in a procedure.";
-var33 = core__flat___NativeString___to_s_full(var32, 42l, 42l);
-var31 = var33;
-varonce = var31;
+var28 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+var_other31 = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, var_nexpr, var31); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var32 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other31); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
-goto RET_LABEL;
+var33 = !var32;
+var29 = var33;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
-} else {
-if (var_ret_type == NULL) {
+var28 = var29;
+}
+if (var28){
+if (var_mtype == NULL) {
 var34 = 0; /* is null */
 } else {
 var34 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_ret_type,((val*)NULL)) on <var_ret_type:nullable Object(nullable MType)> */
-var_other = ((val*)NULL);
+{ /* Inline kernel$Object$!= (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other31 = ((val*)NULL);
 {
-var37 = ((short int(*)(val* self, val* p0))(var_ret_type->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ret_type, var_other); /* == on <var_ret_type:nullable MType(MType)>*/
+var37 = ((short int(*)(val* self, val* p0))(var_mtype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mtype, var_other31); /* == on <var_mtype:nullable MType(MType)>*/
 }
 var38 = !var37;
 var35 = var38;
@@ -849,2941 +975,2751 @@ RET_LABEL36:(void)0;
 var34 = var35;
 }
 if (var34){
-if (likely(varonce39!=NULL)) {
-var40 = varonce39;
-} else {
-var41 = "Error: `return` without value in a function.";
-var42 = core__flat___NativeString___to_s_full(var41, 44l, 44l);
-var40 = var42;
-varonce39 = var40;
-}
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var40); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var39 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_mtype);
 }
-goto RET_LABEL;
+var_etype = var39;
+if (var_etype == NULL) {
+var40 = 0; /* <var_mtype:nullable MType(MType)> cannot be null */
 } else {
+{ /* Inline kernel$Object$== (var_etype,var_mtype) on <var_etype:nullable MType> */
+var_other = var_mtype;
+{
+{ /* Inline kernel$Object$is_same_instance (var_etype,var_other) on <var_etype:nullable MType(MType)> */
+var45 = var_etype == var_other;
+var43 = var45;
+goto RET_LABEL44;
+RET_LABEL44:(void)0;
 }
 }
-{
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AReturnExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AReturnExpr> */
-RET_LABEL43:(void)0;
+var41 = var43;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
+var40 = var41;
 }
-RET_LABEL:;
+if (var40){
+if (var_ntype == NULL) {
+var46 = 0; /* is null */
+} else {
+var46 = 1; /* arg is null and recv is not */
 }
-/* method typing#AAbortExpr#accept_typing for (self: AAbortExpr, TypeVisitor) */
-void nitc__typing___AAbortExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-var_v = p0;
+if (0) {
+{ /* Inline kernel$Object$!= (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
+var_other31 = ((val*)NULL);
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AAbortExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AAbortExpr> */
-RET_LABEL1:(void)0;
+var49 = ((short int(*)(val* self, val* p0))(var_ntype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ntype, var_other31); /* == on <var_ntype:nullable AType(AType)>*/
 }
+var50 = !var49;
+var47 = var50;
+goto RET_LABEL48;
+RET_LABEL48:(void)0;
 }
-RET_LABEL:;
+var46 = var47;
+}
+if (unlikely(!var46)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Assert failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 938);
+fatal_exit(1);
 }
-/* method typing#AIfExpr#accept_typing for (self: AIfExpr, TypeVisitor) */
-void nitc__typing___AIfExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : nullable AExpr */;
-val* var6 /* : nullable AExpr */;
-val* var7 /* : nullable AExpr */;
-val* var9 /* : nullable AExpr */;
-short int var11 /* : Bool */;
-val* var12 /* : nullable AExpr */;
-val* var14 /* : nullable AExpr */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var18 /* : Bool */;
-short int var19 /* : Bool */;
-short int var_ /* var : Bool */;
-val* var20 /* : nullable AExpr */;
-val* var22 /* : nullable AExpr */;
-short int var23 /* : Bool */;
-short int var24 /* : Bool */;
-val* var_other26 /* var other: nullable Object */;
-short int var27 /* : Bool */;
-short int var29 /* : Bool */;
-val* var30 /* : nullable AExpr */;
-val* var32 /* : nullable AExpr */;
-val* var33 /* : nullable MType */;
-var_v = p0;
 {
-{ /* Inline parser_nodes#AIfExpr#n_expr (self) on <self:AIfExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val; /* _n_expr on <self:AIfExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1843);
+{ /* Inline typing$TypeVisitor$modelbuilder (var_v) on <var_v:TypeVisitor> */
+var53 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___modelbuilder].val; /* _modelbuilder on <var_v:TypeVisitor> */
+if (unlikely(var53 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _modelbuilder");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 35);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var51 = var53;
+RET_LABEL52:(void)0;
 }
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+if (likely(varonce!=NULL)) {
+var54 = varonce;
+} else {
+var55 = "useless-type";
+var57 = (val*)(12l<<2|1);
+var58 = (val*)(12l<<2|1);
+var59 = (val*)((long)(0)<<2|3);
+var60 = (val*)((long)(0)<<2|3);
+var56 = core__flat___CString___to_s_unsafe(var55, var57, var58, var59, var60);
+var54 = var56;
+varonce = var54;
+}
+if (unlikely(varonce61==NULL)) {
+var62 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce63!=NULL)) {
+var64 = varonce63;
+} else {
+var65 = "Warning: useless type definition for variable `";
+var67 = (val*)(47l<<2|1);
+var68 = (val*)(47l<<2|1);
+var69 = (val*)((long)(0)<<2|3);
+var70 = (val*)((long)(0)<<2|3);
+var66 = core__flat___CString___to_s_unsafe(var65, var67, var68, var69, var70);
+var64 = var66;
+varonce63 = var64;
 }
-{
-{ /* Inline parser_nodes#AIfExpr#n_then (self) on <self:AIfExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
-var4 = var6;
-RET_LABEL5:(void)0;
+((struct instance_core__NativeArray*)var62)->values[0]=var64;
+if (likely(varonce71!=NULL)) {
+var72 = varonce71;
+} else {
+var73 = "`";
+var75 = (val*)(1l<<2|1);
+var76 = (val*)(1l<<2|1);
+var77 = (val*)((long)(0)<<2|3);
+var78 = (val*)((long)(0)<<2|3);
+var74 = core__flat___CString___to_s_unsafe(var73, var75, var76, var77, var78);
+var72 = var74;
+varonce71 = var72;
 }
+((struct instance_core__NativeArray*)var62)->values[2]=var72;
+} else {
+var62 = varonce61;
+varonce61 = NULL;
 }
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var4); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+{ /* Inline scope$Variable$name (var_variable) on <var_variable:nullable Variable(Variable)> */
+var81 = var_variable->attrs[COLOR_nitc__scope__Variable___name].val; /* _name on <var_variable:nullable Variable(Variable)> */
+if (unlikely(var81 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline parser_nodes#AIfExpr#n_else (self) on <self:AIfExpr> */
-var9 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
-var7 = var9;
-RET_LABEL8:(void)0;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _name");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__scope, 36);
+fatal_exit(1);
 }
+var79 = var81;
+RET_LABEL80:(void)0;
 }
+}
+((struct instance_core__NativeArray*)var62)->values[1]=var79;
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var7); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+var82 = ((val*(*)(val* self))(var62->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var62); /* native_to_s on <var62:NativeArray[String]>*/
 }
+varonce61 = var62;
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AIfExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AIfExpr> */
-RET_LABEL10:(void)0;
+nitc___nitc__ModelBuilder___advice(var51, var_ntype, var54, var82); /* Direct call modelbuilder_base$ModelBuilder$advice on <var51:ModelBuilder>*/
 }
+} else {
 }
+} else {
 {
-{ /* Inline parser_nodes#AIfExpr#n_then (self) on <self:AIfExpr> */
-var14 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
-var12 = var14;
-RET_LABEL13:(void)0;
-}
+var83 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
 }
-if (var12 == NULL) {
-var15 = 0; /* is null */
+var_mtype = var83;
+if (var_mtype == NULL) {
+var84 = 1; /* is null */
 } else {
-var15 = 1; /* arg is null and recv is not */
+var84 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var12,((val*)NULL)) on <var12:nullable AExpr> */
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
 var_other = ((val*)NULL);
 {
-var18 = ((short int(*)(val* self, val* p0))(var12->class->vft[COLOR_core__kernel__Object___61d_61d]))(var12, var_other); /* == on <var12:nullable AExpr(AExpr)>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var89 = var_mtype == var_other;
+var87 = var89;
+goto RET_LABEL88;
+RET_LABEL88:(void)0;
 }
-var19 = !var18;
-var16 = var19;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
 }
-var15 = var16;
+var85 = var87;
+goto RET_LABEL86;
+RET_LABEL86:(void)0;
 }
-var_ = var15;
-if (var15){
-{
-{ /* Inline parser_nodes#AIfExpr#n_else (self) on <self:AIfExpr> */
-var22 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
-var20 = var22;
-RET_LABEL21:(void)0;
+var84 = var85;
+}
+if (var84){
+goto RET_LABEL;
+} else {
 }
 }
-if (var20 == NULL) {
-var23 = 1; /* is null */
 } else {
-var23 = 0; /* arg is null but recv is not */
+}
+var_decltype = var_mtype;
+if (var_mtype == NULL) {
+var91 = 1; /* is null */
+} else {
+var91 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var20,((val*)NULL)) on <var20:nullable AExpr> */
-var_other26 = ((val*)NULL);
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var20,var_other26) on <var20:nullable AExpr(AExpr)> */
-var29 = var20 == var_other26;
-var27 = var29;
-goto RET_LABEL28;
-RET_LABEL28:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var96 = var_mtype == var_other;
+var94 = var96;
+goto RET_LABEL95;
+RET_LABEL95:(void)0;
 }
 }
-var24 = var27;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
+var92 = var94;
+goto RET_LABEL93;
+RET_LABEL93:(void)0;
 }
-var23 = var24;
+var91 = var92;
 }
-var11 = var23;
+var_ = var91;
+if (var91){
+var90 = var_;
 } else {
-var11 = var_;
+/* <var_mtype:nullable MType(MType)> isa MNullType */
+cltype = type_nitc__MNullType.color;
+idtype = type_nitc__MNullType.id;
+if(cltype >= var_mtype->type->table_size) {
+var97 = 0;
+} else {
+var97 = var_mtype->type->type_table[cltype] == idtype;
 }
-if (var11){
-{
-{ /* Inline parser_nodes#AIfExpr#n_then (self) on <self:AIfExpr> */
-var32 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
-var30 = var32;
-RET_LABEL31:(void)0;
+var90 = var97;
 }
-}
-if (var30 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1095);
-fatal_exit(1);
+if (var90){
+if (likely(varonce98!=NULL)) {
+var99 = varonce98;
 } else {
-var33 = ((val*(*)(val* self))(var30->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var30); /* mtype on <var30:nullable AExpr>*/
+var100 = "Object";
+var102 = (val*)(6l<<2|1);
+var103 = (val*)(6l<<2|1);
+var104 = (val*)((long)(0)<<2|3);
+var105 = (val*)((long)(0)<<2|3);
+var101 = core__flat___CString___to_s_unsafe(var100, var102, var103, var104, var105);
+var99 = var101;
+varonce98 = var99;
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var33) on <self:AIfExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var33; /* _mtype on <self:AIfExpr> */
-RET_LABEL34:(void)0;
-}
+var106 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var99);
 }
+var_objclass = var106;
+if (var_objclass == NULL) {
+var107 = 1; /* is null */
 } else {
+var107 = 0; /* arg is null but recv is not */
 }
-RET_LABEL:;
-}
-/* method typing#AIfexprExpr#accept_typing for (self: AIfexprExpr, TypeVisitor) */
-void nitc__typing___AIfexprExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var_t1 /* var t1: nullable MType */;
-val* var8 /* : AExpr */;
-val* var10 /* : AExpr */;
-val* var11 /* : nullable MType */;
-val* var_t2 /* var t2: nullable MType */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-short int var14 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var19 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var24 /* : Bool */;
-val* var25 /* : Array[MType] */;
-val* var_26 /* var : Array[MType] */;
-val* var27 /* : nullable MType */;
-val* var_t /* var t: nullable MType */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
-short int var31 /* : Bool */;
-short int var33 /* : Bool */;
-val* var34 /* : NativeArray[String] */;
-static val* varonce;
-static val* varonce35;
-val* var36 /* : String */;
-char* var37 /* : NativeString */;
-val* var38 /* : String */;
-static val* varonce39;
-val* var40 /* : String */;
-char* var41 /* : NativeString */;
-val* var42 /* : String */;
-static val* varonce43;
-val* var44 /* : String */;
-char* var45 /* : NativeString */;
-val* var46 /* : String */;
-val* var47 /* : String */;
-val* var48 /* : String */;
-val* var49 /* : String */;
-var_v = p0;
+if (0) {
+{ /* Inline kernel$Object$== (var_objclass,((val*)NULL)) on <var_objclass:nullable MClass> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AIfexprExpr#n_expr (self) on <self:AIfexprExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1866);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_objclass,var_other) on <var_objclass:nullable MClass(MClass)> */
+var112 = var_objclass == var_other;
+var110 = var112;
+goto RET_LABEL111;
+RET_LABEL111:(void)0;
 }
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
-}
-{
-{ /* Inline parser_nodes#AIfexprExpr#n_then (self) on <self:AIfexprExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1872);
-fatal_exit(1);
+var108 = var110;
+goto RET_LABEL109;
+RET_LABEL109:(void)0;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
+var107 = var108;
 }
+if (var107){
+goto RET_LABEL;
+} else {
 }
 {
-var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var4);
+{ /* Inline model$MClass$mclass_type (var_objclass) on <var_objclass:nullable MClass(MClass)> */
+var115 = var_objclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objclass:nullable MClass(MClass)> */
+if (unlikely(var115 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_t1 = var7;
-{
-{ /* Inline parser_nodes#AIfexprExpr#n_else (self) on <self:AIfexprExpr> */
-var10 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
-if (unlikely(var10 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_else");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1878);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var8 = var10;
-RET_LABEL9:(void)0;
+var113 = var115;
+RET_LABEL114:(void)0;
 }
 }
 {
-var11 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var8);
+var116 = nitc___nitc__MType___as_nullable(var113);
 }
-var_t2 = var11;
-if (var_t1 == NULL) {
-var13 = 1; /* is null */
+var_decltype = var116;
+if (var_mtype == NULL) {
+var117 = 1; /* is null */
 } else {
-var13 = 0; /* arg is null but recv is not */
+var117 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType(nullable MNullType)> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
-var18 = var_t1 == var_other;
-var16 = var18;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MNullType)> */
+var122 = var_mtype == var_other;
+var120 = var122;
+goto RET_LABEL121;
+RET_LABEL121:(void)0;
 }
 }
-var14 = var16;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+var118 = var120;
+goto RET_LABEL119;
+RET_LABEL119:(void)0;
 }
-var13 = var14;
+var117 = var118;
 }
-var_ = var13;
-if (var13){
-var12 = var_;
+if (var117){
+var_mtype = var_decltype;
 } else {
-if (var_t2 == NULL) {
-var19 = 1; /* is null */
+}
 } else {
-var19 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
-var24 = var_t2 == var_other;
-var22 = var24;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
-}
+{ /* Inline typing$Variable$declared_type= (var_variable,var_decltype) on <var_variable:nullable Variable(Variable)> */
+var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val = var_decltype; /* _declared_type on <var_variable:nullable Variable(Variable)> */
+RET_LABEL123:(void)0;
 }
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
 }
-var19 = var20;
+{
+nitc__typing___nitc__typing__TypeVisitor___set_variable(var_v, self, var_variable, var_mtype); /* Direct call typing$TypeVisitor$set_variable on <var_v:TypeVisitor>*/
 }
-var12 = var19;
+{
+{ /* Inline typing$AExpr$mtype= (self,var_mtype) on <self:AVardeclExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:AVardeclExpr> */
+RET_LABEL124:(void)0;
 }
-if (var12){
-goto RET_LABEL;
-} else {
 }
-var25 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-core___core__Array___with_capacity(var25, 2l); /* Direct call array#Array#with_capacity on <var25:Array[MType]>*/
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AVardeclExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AVardeclExpr> */
+RET_LABEL125:(void)0;
 }
-var_26 = var25;
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t1); /* Direct call array#AbstractArray#push on <var_26:Array[MType]>*/
 }
+RET_LABEL:;
+}
+/* method typing$AVarExpr$its_variable for (self: AVarExpr): nullable Variable */
+val* nitc__typing___AVarExpr___AExpr__its_variable(val* self) {
+val* var /* : nullable Variable */;
+val* var1 /* : nullable Variable */;
+val* var3 /* : nullable Variable */;
 {
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t2); /* Direct call array#AbstractArray#push on <var_26:Array[MType]>*/
+{ /* Inline scope$AVarFormExpr$variable (self) on <self:AVarExpr> */
+var3 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarExpr> */
+var1 = var3;
+RET_LABEL2:(void)0;
+}
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
 }
+/* method typing$AVarExpr$accept_typing for (self: AVarExpr, TypeVisitor) */
+void nitc__typing___AVarExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable Variable */;
+val* var2 /* : nullable Variable */;
+val* var_variable /* var variable: nullable Variable */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
+val* var9 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
+val* var_other13 /* var other: nullable Object */;
+short int var14 /* : Bool */;
+short int var15 /* : Bool */;
+var_v = p0;
 {
-var27 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_26);
+{ /* Inline scope$AVarFormExpr$variable (self) on <self:AVarExpr> */
+var2 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
-var_t = var27;
-if (var_t == NULL) {
-var28 = 1; /* is null */
+}
+var_variable = var;
+if (var_variable == NULL) {
+var3 = 1; /* is null */
 } else {
-var28 = 0; /* arg is null but recv is not */
+var3 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_t,((val*)NULL)) on <var_t:nullable MType> */
+{ /* Inline kernel$Object$== (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t,var_other) on <var_t:nullable MType(MType)> */
-var33 = var_t == var_other;
-var31 = var33;
-goto RET_LABEL32;
-RET_LABEL32:(void)0;
-}
+{ /* Inline kernel$Object$is_same_instance (var_variable,var_other) on <var_variable:nullable Variable(Variable)> */
+var8 = var_variable == var_other;
+var6 = var8;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
-var29 = var31;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
 }
-var28 = var29;
+var4 = var6;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
-if (var28){
-if (unlikely(varonce==NULL)) {
-var34 = NEW_core__NativeArray(5l, &type_core__NativeArray__core__String);
-if (likely(varonce35!=NULL)) {
-var36 = varonce35;
-} else {
-var37 = "Type Error: ambiguous type `";
-var38 = core__flat___NativeString___to_s_full(var37, 28l, 28l);
-var36 = var38;
-varonce35 = var36;
+var3 = var4;
 }
-((struct instance_core__NativeArray*)var34)->values[0]=var36;
-if (likely(varonce39!=NULL)) {
-var40 = varonce39;
+if (var3){
+goto RET_LABEL;
 } else {
-var41 = "` vs `";
-var42 = core__flat___NativeString___to_s_full(var41, 6l, 6l);
-var40 = var42;
-varonce39 = var40;
 }
-((struct instance_core__NativeArray*)var34)->values[2]=var40;
-if (likely(varonce43!=NULL)) {
-var44 = varonce43;
-} else {
-var45 = "`.";
-var46 = core__flat___NativeString___to_s_full(var45, 2l, 2l);
-var44 = var46;
-varonce43 = var44;
+{
+var9 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var_variable);
 }
-((struct instance_core__NativeArray*)var34)->values[4]=var44;
+var_mtype = var9;
+if (var_mtype == NULL) {
+var10 = 0; /* is null */
 } else {
-var34 = varonce;
-varonce = NULL;
-}
-{
-var47 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t1); /* to_s on <var_t1:nullable MType(MType)>*/
+var10 = 1; /* arg is null and recv is not */
 }
-((struct instance_core__NativeArray*)var34)->values[1]=var47;
+if (0) {
+{ /* Inline kernel$Object$!= (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other13 = ((val*)NULL);
 {
-var48 = ((val*(*)(val* self))(var_t2->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t2); /* to_s on <var_t2:nullable MType(MType)>*/
+var14 = ((short int(*)(val* self, val* p0))(var_mtype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mtype, var_other13); /* == on <var_mtype:nullable MType(MType)>*/
 }
-((struct instance_core__NativeArray*)var34)->values[3]=var48;
-{
-var49 = ((val*(*)(val* self))(var34->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var34); /* native_to_s on <var34:NativeArray[String]>*/
+var15 = !var14;
+var11 = var15;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-varonce = var34;
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var49); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var10 = var11;
 }
+if (var10){
 } else {
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var_t) on <self:AIfexprExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t; /* _mtype on <self:AIfexprExpr> */
-RET_LABEL50:(void)0;
+{ /* Inline typing$AExpr$mtype= (self,var_mtype) on <self:AVarExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:AVarExpr> */
+RET_LABEL16:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method typing#ADoExpr#accept_typing for (self: ADoExpr, TypeVisitor) */
-void nitc__typing___ADoExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AVarAssignExpr$accept_typing for (self: AVarAssignExpr, TypeVisitor) */
+void nitc__typing___AVarAssignExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable AExpr */;
-val* var2 /* : nullable AExpr */;
+val* var /* : nullable Variable */;
+val* var2 /* : nullable Variable */;
+val* var_variable /* var variable: nullable Variable */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+val* var8 /* : AExpr */;
+val* var10 /* : AExpr */;
+val* var11 /* : nullable MType */;
+val* var13 /* : nullable MType */;
+val* var14 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
 var_v = p0;
 {
-{ /* Inline parser_nodes#ADoExpr#n_block (self) on <self:ADoExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val; /* _n_block on <self:ADoExpr> */
+{ /* Inline scope$AVarFormExpr$variable (self) on <self:AVarAssignExpr> */
+var2 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarAssignExpr> */
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
-{
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+var_variable = var;
+if (var_variable == NULL) {
+var3 = 0; /* is null */
+} else {
+var3 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
+var_other = ((val*)NULL);
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ADoExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ADoExpr> */
-RET_LABEL3:(void)0;
+var6 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
 }
+var7 = !var6;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
-RET_LABEL:;
+var3 = var4;
 }
-/* method typing#AWhileExpr#accept_typing for (self: AWhileExpr, TypeVisitor) */
-void nitc__typing___AWhileExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var3 /* : AExpr */;
-val* var4 /* : nullable MType */;
-val* var5 /* : nullable AExpr */;
-val* var7 /* : nullable AExpr */;
-var_v = p0;
-{
-{ /* Inline typing#TypeVisitor#has_loop= (var_v,1) on <var_v:TypeVisitor> */
-var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
-RET_LABEL1:(void)0;
+if (unlikely(!var3)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Assert failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 987);
+fatal_exit(1);
 }
 {
-{ /* Inline parser_nodes#AWhileExpr#n_expr (self) on <self:AWhileExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1890);
-fatal_exit(1);
+{ /* Inline parser_nodes$AAssignFormExpr$n_value (self) on <self:AVarAssignExpr> */
+var10 = self->attrs[COLOR_nitc__parser_nodes__AAssignFormExpr___n_value].val; /* _n_value on <self:AVarAssignExpr> */
+if (unlikely(var10 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var = var3;
-RET_LABEL2:(void)0;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2073);
+fatal_exit(1);
 }
+var8 = var10;
+RET_LABEL9:(void)0;
 }
-{
-var4 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
 {
-{ /* Inline parser_nodes#AWhileExpr#n_block (self) on <self:AWhileExpr> */
-var7 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
-var5 = var7;
-RET_LABEL6:(void)0;
+{ /* Inline typing$Variable$declared_type (var_variable) on <var_variable:nullable Variable(Variable)> */
+var13 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:nullable Variable(Variable)> */
+var11 = var13;
+RET_LABEL12:(void)0;
 }
 }
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var5); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+var14 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var8, var11);
 }
+var_mtype = var14;
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AWhileExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AWhileExpr> */
-RET_LABEL8:(void)0;
+nitc__typing___nitc__typing__TypeVisitor___set_variable(var_v, self, var_variable, var_mtype); /* Direct call typing$TypeVisitor$set_variable on <var_v:TypeVisitor>*/
 }
-}
-RET_LABEL:;
-}
-/* method typing#ALoopExpr#accept_typing for (self: ALoopExpr, TypeVisitor) */
-void nitc__typing___ALoopExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable AExpr */;
-val* var3 /* : nullable AExpr */;
-var_v = p0;
 {
-{ /* Inline typing#TypeVisitor#has_loop= (var_v,1) on <var_v:TypeVisitor> */
-var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
-RET_LABEL1:(void)0;
-}
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AVarAssignExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AVarAssignExpr> */
+RET_LABEL15:(void)0;
 }
-{
-{ /* Inline parser_nodes#ALoopExpr#n_block (self) on <self:ALoopExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
-var = var3;
-RET_LABEL2:(void)0;
 }
+RET_LABEL:;
 }
-{
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+/* method typing$AReassignFormExpr$reassign_callsite for (self: AReassignFormExpr): nullable CallSite */
+val* nitc__typing___AReassignFormExpr___reassign_callsite(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val; /* _reassign_callsite on <self:AReassignFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ALoopExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ALoopExpr> */
-RET_LABEL4:(void)0;
+/* method typing$AReassignFormExpr$reassign_callsite= for (self: AReassignFormExpr, nullable CallSite) */
+void nitc__typing___AReassignFormExpr___reassign_callsite_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val = p0; /* _reassign_callsite on <self:AReassignFormExpr> */
+RET_LABEL:;
 }
+/* method typing$AReassignFormExpr$read_type for (self: AReassignFormExpr): nullable MType */
+val* nitc__typing___AReassignFormExpr___read_type(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : nullable MType */;
+var1 = self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val; /* _read_type on <self:AReassignFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AReassignFormExpr$read_type= for (self: AReassignFormExpr, nullable MType) */
+void nitc__typing___AReassignFormExpr___read_type_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = p0; /* _read_type on <self:AReassignFormExpr> */
 RET_LABEL:;
 }
-/* method typing#AForExpr#accept_typing for (self: AForExpr, TypeVisitor) */
-void nitc__typing___AForExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AReassignFormExpr$resolve_reassignment for (self: AReassignFormExpr, TypeVisitor, MType, MType): nullable MType */
+val* nitc__typing___AReassignFormExpr___resolve_reassignment(val* self, val* p0, val* p1, val* p2) {
+val* var /* : nullable MType */;
 val* var_v /* var v: TypeVisitor */;
-val* var /* : ANodes[AForGroup] */;
-val* var3 /* : ANodes[AForGroup] */;
-val* var_ /* var : ANodes[AForGroup] */;
-val* var4 /* : Iterator[ANode] */;
-val* var_5 /* var : Iterator[AForGroup] */;
-short int var6 /* : Bool */;
-val* var7 /* : nullable Object */;
-val* var_g /* var g: AForGroup */;
-val* var8 /* : AExpr */;
-val* var10 /* : AExpr */;
-val* var11 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
+val* var_readtype /* var readtype: MType */;
+val* var_writetype /* var writetype: MType */;
+val* var1 /* : AAssignOp */;
+val* var3 /* : AAssignOp */;
+val* var4 /* : String */;
+val* var_reassign_name /* var reassign_name: String */;
+val* var6 /* : AAssignOp */;
+val* var8 /* : AAssignOp */;
+val* var9 /* : nullable CallSite */;
+val* var_callsite /* var callsite: nullable CallSite */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
 val* var_other /* var other: nullable Object */;
+short int var13 /* : Bool */;
 short int var15 /* : Bool */;
-short int var17 /* : Bool */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-val* var22 /* : nullable AExpr */;
-val* var24 /* : nullable AExpr */;
-val* var25 /* : nullable AExpr */;
-val* var27 /* : nullable AExpr */;
-val* var28 /* : nullable MType */;
+val* var17 /* : MSignature */;
+val* var19 /* : MSignature */;
+val* var_msignature /* var msignature: MSignature */;
+val* var20 /* : nullable MType */;
+val* var22 /* : nullable MType */;
+val* var_rettype /* var rettype: nullable MType */;
+short int var23 /* : Bool */;
+long var24 /* : Int */;
+short int var25 /* : Bool */;
+short int var27 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+val* var_other31 /* var other: nullable Object */;
+short int var32 /* : Bool */;
+short int var33 /* : Bool */;
+val* var34 /* : AExpr */;
+val* var36 /* : AExpr */;
+val* var37 /* : Array[MParameter] */;
+val* var39 /* : Array[MParameter] */;
+val* var40 /* : nullable Object */;
+val* var41 /* : MType */;
+val* var43 /* : MType */;
+val* var44 /* : nullable MType */;
+val* var_value_type /* var value_type: nullable MType */;
+short int var45 /* : Bool */;
+short int var46 /* : Bool */;
+short int var48 /* : Bool */;
+short int var50 /* : Bool */;
+val* var51 /* : nullable MType */;
 var_v = p0;
+var_readtype = p1;
+var_writetype = p2;
 {
-{ /* Inline typing#TypeVisitor#has_loop= (var_v,1) on <var_v:TypeVisitor> */
-var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline parser_nodes#AForExpr#n_groups (self) on <self:AForExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
+{ /* Inline parser_nodes$AReassignFormExpr$n_assign_op (self) on <self:AReassignFormExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_assign_op].val; /* _n_assign_op on <self:AReassignFormExpr> */
 if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1920);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_assign_op");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2081);
 fatal_exit(1);
 }
-var = var3;
+var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
-var_ = var;
 {
-var4 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
+var4 = ((val*(*)(val* self))(var1->class->vft[COLOR_nitc__parser_nodes__AAssignOp__operator]))(var1); /* operator on <var1:AAssignOp>*/
 }
-var_5 = var4;
-for(;;) {
+var_reassign_name = var4;
 {
-var6 = ((short int(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_5); /* is_ok on <var_5:Iterator[AForGroup]>*/
+{ /* Inline typing$AReassignFormExpr$read_type= (self,var_readtype) on <self:AReassignFormExpr> */
+self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = var_readtype; /* _read_type on <self:AReassignFormExpr> */
+RET_LABEL5:(void)0;
 }
-if (var6){
-} else {
-goto BREAK_label;
 }
 {
-var7 = ((val*(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_5); /* item on <var_5:Iterator[AForGroup]>*/
+{ /* Inline parser_nodes$AReassignFormExpr$n_assign_op (self) on <self:AReassignFormExpr> */
+var8 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_assign_op].val; /* _n_assign_op on <self:AReassignFormExpr> */
+if (unlikely(var8 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_g = var7;
-{
-{ /* Inline parser_nodes#AForGroup#n_expr (var_g) on <var_g:AForGroup> */
-var10 = var_g->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <var_g:AForGroup> */
-if (unlikely(var10 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1943);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_assign_op");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2081);
 fatal_exit(1);
 }
-var8 = var10;
-RET_LABEL9:(void)0;
+var6 = var8;
+RET_LABEL7:(void)0;
 }
 }
 {
-var11 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var8);
+var9 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var6, var_readtype, var_reassign_name, 0);
 }
-var_mtype = var11;
-if (var_mtype == NULL) {
-var12 = 1; /* is null */
+var_callsite = var9;
+if (var_callsite == NULL) {
+var10 = 1; /* is null */
 } else {
-var12 = 0; /* arg is null but recv is not */
+var10 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+{ /* Inline kernel$Object$== (var_callsite,((val*)NULL)) on <var_callsite:nullable CallSite> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
-var17 = var_mtype == var_other;
-var15 = var17;
-goto RET_LABEL16;
-RET_LABEL16:(void)0;
-}
-}
+{ /* Inline kernel$Object$is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
+var15 = var_callsite == var_other;
 var13 = var15;
 goto RET_LABEL14;
 RET_LABEL14:(void)0;
 }
-var12 = var13;
 }
-if (var12){
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
+}
+var10 = var11;
+}
+if (var10){
+var = ((val*)NULL);
 goto RET_LABEL;
 } else {
 }
 {
-nitc__typing___AForGroup___do_type_iterator(var_g, var_v, var_mtype); /* Direct call typing#AForGroup#do_type_iterator on <var_g:AForGroup>*/
-}
-{
-{ /* Inline modelbuilder_base#ANode#is_broken (var_g) on <var_g:AForGroup> */
-var20 = var_g->attrs[COLOR_nitc__modelbuilder_base__ANode___is_broken].s; /* _is_broken on <var_g:AForGroup> */
-var18 = var20;
-RET_LABEL19:(void)0;
+{ /* Inline typing$AReassignFormExpr$reassign_callsite= (self,var_callsite) on <self:AReassignFormExpr> */
+self->attrs[COLOR_nitc__typing__AReassignFormExpr___reassign_callsite].val = var_callsite; /* _reassign_callsite on <self:AReassignFormExpr> */
+RET_LABEL16:(void)0;
 }
 }
-if (var18){
 {
-{ /* Inline modelbuilder_base#ANode#is_broken= (self,1) on <self:AForExpr> */
-self->attrs[COLOR_nitc__modelbuilder_base__ANode___is_broken].s = 1; /* _is_broken on <self:AForExpr> */
-RET_LABEL21:(void)0;
-}
-}
-} else {
+{ /* Inline typing$CallSite$msignature (var_callsite) on <var_callsite:nullable CallSite(CallSite)> */
+var19 = var_callsite->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_callsite:nullable CallSite(CallSite)> */
+if (unlikely(var19 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_5); /* next on <var_5:Iterator[AForGroup]>*/
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 663);
+fatal_exit(1);
 }
+var17 = var19;
+RET_LABEL18:(void)0;
 }
-BREAK_label: (void)0;
-{
-((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_5); /* finish on <var_5:Iterator[AForGroup]>*/
 }
+var_msignature = var17;
 {
-{ /* Inline parser_nodes#AForExpr#n_block (self) on <self:AForExpr> */
-var24 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
-var22 = var24;
-RET_LABEL23:(void)0;
+{ /* Inline model$MSignature$return_mtype (var_msignature) on <var_msignature:MSignature> */
+var22 = var_msignature->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var_msignature:MSignature> */
+var20 = var22;
+RET_LABEL21:(void)0;
 }
 }
+var_rettype = var20;
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var22); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+var24 = nitc___nitc__MSignature___arity(var_msignature);
 }
 {
-{ /* Inline parser_nodes#AForExpr#n_block (self) on <self:AForExpr> */
-var27 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+{ /* Inline kernel$Int$== (var24,1l) on <var24:Int> */
+var27 = var24 == 1l;
 var25 = var27;
+goto RET_LABEL26;
 RET_LABEL26:(void)0;
 }
 }
-if (var25 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1161);
-fatal_exit(1);
+var_ = var25;
+if (var25){
+if (var_rettype == NULL) {
+var28 = 0; /* is null */
 } else {
-var28 = ((val*(*)(val* self))(var25->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var25); /* mtype on <var25:nullable AExpr>*/
+var28 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_rettype,((val*)NULL)) on <var_rettype:nullable MType> */
+var_other31 = ((val*)NULL);
 {
-{ /* Inline typing#AExpr#mtype= (self,var28) on <self:AForExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var28; /* _mtype on <self:AForExpr> */
-RET_LABEL29:(void)0;
-}
+var32 = ((short int(*)(val* self, val* p0))(var_rettype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_rettype, var_other31); /* == on <var_rettype:nullable MType(MType)>*/
 }
-{
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AForExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AForExpr> */
+var33 = !var32;
+var29 = var33;
+goto RET_LABEL30;
 RET_LABEL30:(void)0;
 }
+var28 = var29;
 }
-RET_LABEL:;
-}
-/* method typing#AForGroup#coltype= for (self: AForGroup, nullable MClassType) */
-void nitc__typing___AForGroup___coltype_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___coltype].val = p0; /* _coltype on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_iterator for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_iterator(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val; /* _method_iterator on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_iterator= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_iterator_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val = p0; /* _method_iterator on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_is_ok for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_is_ok(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val; /* _method_is_ok on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_is_ok= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_is_ok_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val = p0; /* _method_is_ok on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_item for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_item(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_item].val; /* _method_item on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_item= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_item_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_item].val = p0; /* _method_item on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_next for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_next(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_next].val; /* _method_next on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_next= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_next_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_next].val = p0; /* _method_next on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_key for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_key(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_key].val; /* _method_key on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_key= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_key_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_key].val = p0; /* _method_key on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_finish for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_finish(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val; /* _method_finish on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_finish= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_finish_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val = p0; /* _method_finish on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_lt for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_lt(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val; /* _method_lt on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_lt= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_lt_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = p0; /* _method_lt on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#method_successor for (self: AForGroup): nullable CallSite */
-val* nitc__typing___AForGroup___method_successor(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val; /* _method_successor on <self:AForGroup> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AForGroup#method_successor= for (self: AForGroup, nullable CallSite) */
-void nitc__typing___AForGroup___method_successor_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val = p0; /* _method_successor on <self:AForGroup> */
-RET_LABEL:;
-}
-/* method typing#AForGroup#do_type_iterator for (self: AForGroup, TypeVisitor, MType) */
-void nitc__typing___AForGroup___do_type_iterator(val* self, val* p0, val* p1) {
-val* var_v /* var v: TypeVisitor */;
-val* var_mtype /* var mtype: MType */;
-short int var /* : Bool */;
-int cltype;
-int idtype;
-static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-val* var3 /* : String */;
-static val* varonce4;
-val* var5 /* : String */;
-char* var6 /* : NativeString */;
-val* var7 /* : String */;
-val* var8 /* : nullable MClass */;
-val* var_objcla /* var objcla: nullable MClass */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var12 /* : Bool */;
-short int var14 /* : Bool */;
-static val* varonce15;
-val* var16 /* : String */;
-char* var17 /* : NativeString */;
-val* var18 /* : String */;
-val* var19 /* : AExpr */;
-val* var21 /* : AExpr */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-val* var25 /* : nullable CallSite */;
-val* var_itdef /* var itdef: nullable CallSite */;
-short int var26 /* : Bool */;
-short int var27 /* : Bool */;
-short int var29 /* : Bool */;
-short int var31 /* : Bool */;
-val* var33 /* : NativeArray[String] */;
-static val* varonce32;
-static val* varonce34;
-val* var35 /* : String */;
-char* var36 /* : NativeString */;
-val* var37 /* : String */;
-static val* varonce38;
-val* var39 /* : String */;
-char* var40 /* : NativeString */;
-val* var41 /* : String */;
-val* var42 /* : String */;
-val* var43 /* : String */;
-val* var45 /* : MSignature */;
-val* var47 /* : MSignature */;
-val* var48 /* : nullable MType */;
-val* var50 /* : nullable MType */;
-val* var_ittype /* var ittype: nullable MType */;
-short int var51 /* : Bool */;
-short int var52 /* : Bool */;
-short int var54 /* : Bool */;
-short int var56 /* : Bool */;
-static val* varonce57;
-val* var58 /* : String */;
-char* var59 /* : NativeString */;
-val* var60 /* : String */;
-static val* varonce61;
-val* var62 /* : String */;
-char* var63 /* : NativeString */;
-val* var64 /* : String */;
-val* var65 /* : nullable MClass */;
-val* var_colit_cla /* var colit_cla: nullable MClass */;
-static val* varonce66;
-val* var67 /* : String */;
-char* var68 /* : NativeString */;
-val* var69 /* : String */;
-val* var70 /* : nullable MClass */;
-val* var_mapit_cla /* var mapit_cla: nullable MClass */;
-short int var_is_col /* var is_col: Bool */;
-short int var_is_map /* var is_map: Bool */;
-short int var71 /* : Bool */;
-short int var72 /* : Bool */;
-short int var73 /* : Bool */;
-val* var_other75 /* var other: nullable Object */;
-short int var76 /* : Bool */;
-short int var77 /* : Bool */;
-short int var_ /* var : Bool */;
-val* var78 /* : Array[MType] */;
-val* var_79 /* var : Array[MType] */;
-val* var80 /* : MClassType */;
-val* var82 /* : MClassType */;
-val* var83 /* : MType */;
-val* var84 /* : MClassType */;
-short int var85 /* : Bool */;
-val* var86 /* : MModule */;
-val* var88 /* : MModule */;
-val* var89 /* : nullable MClassType */;
-val* var91 /* : nullable MClassType */;
-val* var92 /* : MClassType */;
-val* var_coltype /* var coltype: MClassType */;
-val* var93 /* : nullable Array[Variable] */;
-val* var95 /* : nullable Array[Variable] */;
-val* var_variables /* var variables: nullable Array[Variable] */;
-long var96 /* : Int */;
-long var98 /* : Int */;
-short int var99 /* : Bool */;
-short int var101 /* : Bool */;
-short int var102 /* : Bool */;
-static val* varonce103;
-val* var104 /* : String */;
-char* var105 /* : NativeString */;
-val* var106 /* : String */;
-val* var107 /* : nullable Object */;
-val* var108 /* : Array[MType] */;
-val* var109 /* : nullable Object */;
-short int var111 /* : Bool */;
-short int var112 /* : Bool */;
-short int var113 /* : Bool */;
-short int var115 /* : Bool */;
-short int var116 /* : Bool */;
-short int var_117 /* var : Bool */;
-val* var118 /* : Array[MType] */;
-val* var_119 /* var : Array[MType] */;
-val* var120 /* : MClassType */;
-val* var122 /* : MClassType */;
-val* var123 /* : MType */;
-val* var124 /* : MClassType */;
-val* var126 /* : MClassType */;
-val* var127 /* : MType */;
-val* var128 /* : MClassType */;
-short int var129 /* : Bool */;
-val* var130 /* : MModule */;
-val* var132 /* : MModule */;
-val* var133 /* : nullable MClassType */;
-val* var135 /* : nullable MClassType */;
-val* var136 /* : MClassType */;
-val* var_coltype137 /* var coltype: MClassType */;
-val* var138 /* : nullable Array[Variable] */;
-val* var140 /* : nullable Array[Variable] */;
-val* var_variables141 /* var variables: nullable Array[Variable] */;
-long var142 /* : Int */;
-long var144 /* : Int */;
-short int var145 /* : Bool */;
-short int var147 /* : Bool */;
-short int var148 /* : Bool */;
-static val* varonce149;
-val* var150 /* : String */;
-char* var151 /* : NativeString */;
-val* var152 /* : String */;
-val* var153 /* : nullable Object */;
-val* var154 /* : Array[MType] */;
-val* var155 /* : nullable Object */;
-val* var157 /* : nullable Object */;
-val* var158 /* : Array[MType] */;
-val* var159 /* : nullable Object */;
-short int var161 /* : Bool */;
-short int var162 /* : Bool */;
-short int var_163 /* var : Bool */;
-short int var164 /* : Bool */;
-static val* varonce165;
-val* var166 /* : String */;
-char* var167 /* : NativeString */;
-val* var168 /* : String */;
-short int var169 /* : Bool */;
-val* var170 /* : MType */;
-val* var171 /* : MType */;
-short int var172 /* : Bool */;
-int cltype173;
-int idtype174;
-const char* var_class_name;
-static val* varonce176;
-val* var177 /* : String */;
-char* var178 /* : NativeString */;
-val* var179 /* : String */;
-val* var180 /* : nullable CallSite */;
-val* var_ikdef /* var ikdef: nullable CallSite */;
-short int var181 /* : Bool */;
-short int var182 /* : Bool */;
-short int var184 /* : Bool */;
-short int var186 /* : Bool */;
-val* var188 /* : NativeArray[String] */;
-static val* varonce187;
-static val* varonce189;
-val* var190 /* : String */;
-char* var191 /* : NativeString */;
-val* var192 /* : String */;
-static val* varonce193;
-val* var194 /* : String */;
-char* var195 /* : NativeString */;
-val* var196 /* : String */;
-val* var197 /* : String */;
-val* var198 /* : String */;
-static val* varonce200;
-val* var201 /* : String */;
-char* var202 /* : NativeString */;
-val* var203 /* : String */;
-val* var204 /* : nullable CallSite */;
-val* var_itemdef /* var itemdef: nullable CallSite */;
-short int var205 /* : Bool */;
-short int var206 /* : Bool */;
-short int var208 /* : Bool */;
-short int var210 /* : Bool */;
-val* var212 /* : NativeArray[String] */;
-static val* varonce211;
-static val* varonce213;
-val* var214 /* : String */;
-char* var215 /* : NativeString */;
-val* var216 /* : String */;
-static val* varonce217;
-val* var218 /* : String */;
-char* var219 /* : NativeString */;
-val* var220 /* : String */;
-val* var221 /* : String */;
-val* var222 /* : String */;
-static val* varonce224;
-val* var225 /* : String */;
-char* var226 /* : NativeString */;
-val* var227 /* : String */;
-val* var228 /* : nullable CallSite */;
-val* var_nextdef /* var nextdef: nullable CallSite */;
-short int var229 /* : Bool */;
-short int var230 /* : Bool */;
-short int var232 /* : Bool */;
-short int var234 /* : Bool */;
-val* var236 /* : NativeArray[String] */;
-static val* varonce235;
-static val* varonce237;
-val* var238 /* : String */;
-char* var239 /* : NativeString */;
-val* var240 /* : String */;
-static val* varonce241;
-val* var242 /* : String */;
-char* var243 /* : NativeString */;
-val* var244 /* : String */;
-val* var245 /* : String */;
-val* var246 /* : String */;
-static val* varonce248;
-val* var249 /* : String */;
-char* var250 /* : NativeString */;
-val* var251 /* : String */;
-val* var252 /* : nullable CallSite */;
-static val* varonce254;
-val* var255 /* : String */;
-char* var256 /* : NativeString */;
-val* var257 /* : String */;
-val* var258 /* : nullable CallSite */;
-val* var_keydef /* var keydef: nullable CallSite */;
-short int var259 /* : Bool */;
-short int var260 /* : Bool */;
-short int var262 /* : Bool */;
-short int var264 /* : Bool */;
-val* var266 /* : NativeArray[String] */;
-static val* varonce265;
-static val* varonce267;
-val* var268 /* : String */;
-char* var269 /* : NativeString */;
-val* var270 /* : String */;
-static val* varonce271;
-val* var272 /* : String */;
-char* var273 /* : NativeString */;
-val* var274 /* : String */;
-val* var275 /* : String */;
-val* var276 /* : String */;
-short int var278 /* : Bool */;
-val* var279 /* : nullable Array[Variable] */;
-val* var281 /* : nullable Array[Variable] */;
-long var282 /* : Int */;
-long var284 /* : Int */;
-short int var285 /* : Bool */;
-short int var287 /* : Bool */;
-short int var_288 /* var : Bool */;
-val* var289 /* : AExpr */;
-val* var291 /* : AExpr */;
-short int var292 /* : Bool */;
-int cltype293;
-int idtype294;
-val* var295 /* : nullable Array[Variable] */;
-val* var297 /* : nullable Array[Variable] */;
-val* var298 /* : nullable Object */;
-val* var_variable /* var variable: Variable */;
-val* var299 /* : nullable MType */;
-val* var301 /* : nullable MType */;
-val* var_vtype /* var vtype: MType */;
-val* var302 /* : AExpr */;
-val* var304 /* : AExpr */;
-short int var305 /* : Bool */;
-int cltype306;
-int idtype307;
-static val* varonce308;
-val* var309 /* : String */;
-char* var310 /* : NativeString */;
-val* var311 /* : String */;
-val* var312 /* : nullable CallSite */;
-static val* varonce314;
-val* var315 /* : String */;
-char* var316 /* : NativeString */;
-val* var317 /* : String */;
-val* var318 /* : nullable CallSite */;
-static val* varonce320;
-val* var321 /* : String */;
-char* var322 /* : NativeString */;
-val* var323 /* : String */;
-val* var324 /* : nullable CallSite */;
-var_v = p0;
-var_mtype = p1;
-/* <var_mtype:MType> isa MNullType */
-cltype = type_nitc__MNullType.color;
-idtype = type_nitc__MNullType.id;
-if(cltype >= var_mtype->type->table_size) {
-var = 0;
-} else {
-var = var_mtype->type->type_table[cltype] == idtype;
-}
-if (var){
-if (likely(varonce!=NULL)) {
-var1 = varonce;
-} else {
-var2 = "Type Error: `for` cannot iterate over `null`.";
-var3 = core__flat___NativeString___to_s_full(var2, 45l, 45l);
-var1 = var3;
-varonce = var1;
-}
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var1); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
-}
-goto RET_LABEL;
-} else {
-}
-if (likely(varonce4!=NULL)) {
-var5 = varonce4;
+var23 = var28;
 } else {
-var6 = "Object";
-var7 = core__flat___NativeString___to_s_full(var6, 6l, 6l);
-var5 = var7;
-varonce4 = var5;
+var23 = var_;
 }
-{
-var8 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var5);
+if (unlikely(!var23)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_objcla = var8;
-if (var_objcla == NULL) {
-var9 = 1; /* is null */
-} else {
-var9 = 0; /* arg is null but recv is not */
+PRINT_ERROR("Runtime error: %s", "Assert failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1020);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_objcla,((val*)NULL)) on <var_objcla:nullable MClass> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_objcla,var_other) on <var_objcla:nullable MClass(MClass)> */
-var14 = var_objcla == var_other;
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
-}
-}
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-var9 = var10;
-}
-if (var9){
-goto RET_LABEL;
-} else {
-}
-if (likely(varonce15!=NULL)) {
-var16 = varonce15;
-} else {
-var17 = "iterator";
-var18 = core__flat___NativeString___to_s_full(var17, 8l, 8l);
-var16 = var18;
-varonce15 = var16;
+{ /* Inline parser_nodes$AReassignFormExpr$n_value (self) on <self:AReassignFormExpr> */
+var36 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_value].val; /* _n_value on <self:AReassignFormExpr> */
+if (unlikely(var36 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline parser_nodes#AForGroup#n_expr (self) on <self:AForGroup> */
-var21 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
-if (unlikely(var21 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1943);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2084);
 fatal_exit(1);
 }
-var19 = var21;
-RET_LABEL20:(void)0;
-}
-}
-/* <var19:AExpr> isa ASelfExpr */
-cltype23 = type_nitc__ASelfExpr.color;
-idtype24 = type_nitc__ASelfExpr.id;
-if(cltype23 >= var19->type->table_size) {
-var22 = 0;
-} else {
-var22 = var19->type->type_table[cltype23] == idtype24;
-}
-{
-var25 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var16, var22);
+var34 = var36;
+RET_LABEL35:(void)0;
 }
-var_itdef = var25;
-if (var_itdef == NULL) {
-var26 = 1; /* is null */
-} else {
-var26 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_itdef,((val*)NULL)) on <var_itdef:nullable CallSite> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_itdef,var_other) on <var_itdef:nullable CallSite(CallSite)> */
-var31 = var_itdef == var_other;
-var29 = var31;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
-}
-}
-var27 = var29;
-goto RET_LABEL28;
-RET_LABEL28:(void)0;
-}
-var26 = var27;
-}
-if (var26){
-if (unlikely(varonce32==NULL)) {
-var33 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce34!=NULL)) {
-var35 = varonce34;
-} else {
-var36 = "Type Error: `for` expects a type providing an `iterator` method, got `";
-var37 = core__flat___NativeString___to_s_full(var36, 70l, 70l);
-var35 = var37;
-varonce34 = var35;
-}
-((struct instance_core__NativeArray*)var33)->values[0]=var35;
-if (likely(varonce38!=NULL)) {
-var39 = varonce38;
-} else {
-var40 = "`.";
-var41 = core__flat___NativeString___to_s_full(var40, 2l, 2l);
-var39 = var41;
-varonce38 = var39;
+{ /* Inline model$MSignature$mparameters (var_msignature) on <var_msignature:MSignature> */
+var39 = var_msignature->attrs[COLOR_nitc__model__MSignature___mparameters].val; /* _mparameters on <var_msignature:MSignature> */
+if (unlikely(var39 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-((struct instance_core__NativeArray*)var33)->values[2]=var39;
-} else {
-var33 = varonce32;
-varonce32 = NULL;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mparameters");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1879);
+fatal_exit(1);
 }
-{
-var42 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_mtype); /* to_s on <var_mtype:MType>*/
+var37 = var39;
+RET_LABEL38:(void)0;
 }
-((struct instance_core__NativeArray*)var33)->values[1]=var42;
-{
-var43 = ((val*(*)(val* self))(var33->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var33); /* native_to_s on <var33:NativeArray[String]>*/
 }
-varonce32 = var33;
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var43); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
-}
-goto RET_LABEL;
-} else {
+var40 = core___core__SequenceRead___Collection__first(var37);
 }
 {
-{ /* Inline typing#AForGroup#method_iterator= (self,var_itdef) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val = var_itdef; /* _method_iterator on <self:AForGroup> */
-RET_LABEL44:(void)0;
-}
+{ /* Inline model$MParameter$mtype (var40) on <var40:nullable Object(MParameter)> */
+var43 = var40->attrs[COLOR_nitc__model__MParameter___mtype].val; /* _mtype on <var40:nullable Object(MParameter)> */
+if (unlikely(var43 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline typing#CallSite#msignature (var_itdef) on <var_itdef:nullable CallSite(CallSite)> */
-var47 = var_itdef->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_itdef:nullable CallSite(CallSite)> */
-if (unlikely(var47 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 660);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mtype");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1996);
 fatal_exit(1);
 }
-var45 = var47;
-RET_LABEL46:(void)0;
+var41 = var43;
+RET_LABEL42:(void)0;
 }
 }
 {
-{ /* Inline model#MSignature#return_mtype (var45) on <var45:MSignature> */
-var50 = var45->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var45:MSignature> */
-var48 = var50;
-RET_LABEL49:(void)0;
-}
+var44 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var34, var41);
 }
-var_ittype = var48;
-if (var_ittype == NULL) {
-var51 = 1; /* is null */
+var_value_type = var44;
+if (var_value_type == NULL) {
+var45 = 1; /* is null */
 } else {
-var51 = 0; /* arg is null but recv is not */
+var45 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_ittype,((val*)NULL)) on <var_ittype:nullable MType> */
+{ /* Inline kernel$Object$== (var_value_type,((val*)NULL)) on <var_value_type:nullable MType> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_ittype,var_other) on <var_ittype:nullable MType(MType)> */
-var56 = var_ittype == var_other;
-var54 = var56;
-goto RET_LABEL55;
-RET_LABEL55:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_value_type,var_other) on <var_value_type:nullable MType(MType)> */
+var50 = var_value_type == var_other;
+var48 = var50;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
-var52 = var54;
-goto RET_LABEL53;
-RET_LABEL53:(void)0;
+var46 = var48;
+goto RET_LABEL47;
+RET_LABEL47:(void)0;
 }
-var51 = var52;
+var45 = var46;
 }
-if (var51){
-if (likely(varonce57!=NULL)) {
-var58 = varonce57;
+if (var45){
+var = ((val*)NULL);
+goto RET_LABEL;
 } else {
-var59 = "Type Error: `for` expects the method `iterator` to return an `Iterator` or `MapIterator` type.";
-var60 = core__flat___NativeString___to_s_full(var59, 94l, 94l);
-var58 = var60;
-varonce57 = var58;
 }
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var58); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var51 = nitc__typing___nitc__typing__TypeVisitor___check_subtype(var_v, self, var_rettype, var_writetype, 0);
 }
+var = var_rettype;
 goto RET_LABEL;
-} else {
-}
-if (likely(varonce61!=NULL)) {
-var62 = varonce61;
-} else {
-var63 = "Iterator";
-var64 = core__flat___NativeString___to_s_full(var63, 8l, 8l);
-var62 = var64;
-varonce61 = var62;
+RET_LABEL:;
+return var;
 }
+/* method typing$AVarReassignExpr$accept_typing for (self: AVarReassignExpr, TypeVisitor) */
+void nitc__typing___AVarReassignExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable Variable */;
+val* var2 /* : nullable Variable */;
+val* var_variable /* var variable: nullable Variable */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+val* var8 /* : nullable MType */;
+val* var_readtype /* var readtype: nullable MType */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+val* var_other12 /* var other: nullable Object */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+val* var17 /* : nullable MType */;
+val* var19 /* : nullable MType */;
+val* var_writetype /* var writetype: nullable MType */;
+short int var20 /* : Bool */;
+short int var21 /* : Bool */;
+short int var23 /* : Bool */;
+short int var25 /* : Bool */;
+val* var26 /* : nullable MType */;
+val* var_rettype /* var rettype: nullable MType */;
+short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+short int var31 /* : Bool */;
+var_v = p0;
 {
-var65 = nitc__typing___nitc__typing__TypeVisitor___try_get_mclass(var_v, self, var62);
-}
-var_colit_cla = var65;
-if (likely(varonce66!=NULL)) {
-var67 = varonce66;
-} else {
-var68 = "MapIterator";
-var69 = core__flat___NativeString___to_s_full(var68, 11l, 11l);
-var67 = var69;
-varonce66 = var67;
+{ /* Inline scope$AVarFormExpr$variable (self) on <self:AVarReassignExpr> */
+var2 = self->attrs[COLOR_nitc__scope__AVarFormExpr___variable].val; /* _variable on <self:AVarReassignExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
-{
-var70 = nitc__typing___nitc__typing__TypeVisitor___try_get_mclass(var_v, self, var67);
 }
-var_mapit_cla = var70;
-var_is_col = 0;
-var_is_map = 0;
-if (var_colit_cla == NULL) {
-var72 = 0; /* is null */
+var_variable = var;
+if (var_variable == NULL) {
+var3 = 0; /* is null */
 } else {
-var72 = 1; /* arg is null and recv is not */
+var3 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_colit_cla,((val*)NULL)) on <var_colit_cla:nullable MClass> */
-var_other75 = ((val*)NULL);
-{
-var76 = ((short int(*)(val* self, val* p0))(var_colit_cla->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_colit_cla, var_other75); /* == on <var_colit_cla:nullable MClass(MClass)>*/
-}
-var77 = !var76;
-var73 = var77;
-goto RET_LABEL74;
-RET_LABEL74:(void)0;
-}
-var72 = var73;
-}
-var_ = var72;
-if (var72){
-var78 = NEW_core__Array(&type_core__Array__nitc__MType);
-{
-core___core__Array___with_capacity(var78, 1l); /* Direct call array#Array#with_capacity on <var78:Array[MType]>*/
-}
-var_79 = var78;
+{ /* Inline kernel$Object$!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
+var_other = ((val*)NULL);
 {
-{ /* Inline model#MClass#mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
-var82 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
-if (unlikely(var82 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
-}
-var80 = var82;
-RET_LABEL81:(void)0;
+var6 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
 }
+var7 = !var6;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
-{
-var83 = nitc___nitc__MType___as_nullable(var80);
+var3 = var4;
 }
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_79, var83); /* Direct call array#AbstractArray#push on <var_79:Array[MType]>*/
+if (unlikely(!var3)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-var84 = nitc___nitc__MClass___get_mtype(var_colit_cla, var_79);
+PRINT_ERROR("Runtime error: %s", "Assert failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1034);
+fatal_exit(1);
 }
 {
-var85 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_ittype, var84);
+var8 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var_variable);
 }
-var71 = var85;
+var_readtype = var8;
+if (var_readtype == NULL) {
+var9 = 1; /* is null */
 } else {
-var71 = var_;
+var9 = 0; /* arg is null but recv is not */
 }
-if (var71){
+if (0) {
+{ /* Inline kernel$Object$== (var_readtype,((val*)NULL)) on <var_readtype:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-{ /* Inline typing#TypeVisitor#mmodule (var_v) on <var_v:TypeVisitor> */
-var88 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
-if (unlikely(var88 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_readtype,var_other12) on <var_readtype:nullable MType(MType)> */
+var15 = var_readtype == var_other12;
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
-var86 = var88;
-RET_LABEL87:(void)0;
 }
+var10 = var13;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
-{
-{ /* Inline typing#TypeVisitor#anchor (var_v) on <var_v:TypeVisitor> */
-var91 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___anchor].val; /* _anchor on <var_v:TypeVisitor> */
-var89 = var91;
-RET_LABEL90:(void)0;
+var9 = var10;
 }
+if (var9){
+goto RET_LABEL;
+} else {
 }
 {
-var92 = nitc___nitc__MType___supertype_to(var_ittype, var86, var89, var_colit_cla);
+{ /* Inline typing$AReassignFormExpr$read_type= (self,var_readtype) on <self:AVarReassignExpr> */
+self->attrs[COLOR_nitc__typing__AReassignFormExpr___read_type].val = var_readtype; /* _read_type on <self:AVarReassignExpr> */
+RET_LABEL16:(void)0;
+}
 }
-var_coltype = var92;
 {
-{ /* Inline scope#AForGroup#variables (self) on <self:AForGroup> */
-var95 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
-var93 = var95;
-RET_LABEL94:(void)0;
+{ /* Inline typing$Variable$declared_type (var_variable) on <var_variable:nullable Variable(Variable)> */
+var19 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:nullable Variable(Variable)> */
+var17 = var19;
+RET_LABEL18:(void)0;
 }
 }
-var_variables = var93;
-if (var_variables == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1215);
-fatal_exit(1);
+var_writetype = var17;
+if (var_writetype == NULL) {
+var20 = 1; /* is null */
 } else {
-{ /* Inline array#AbstractArrayRead#length (var_variables) on <var_variables:nullable Array[Variable]> */
-if (unlikely(var_variables == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
-fatal_exit(1);
-}
-var98 = var_variables->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_variables:nullable Array[Variable]> */
-var96 = var98;
-RET_LABEL97:(void)0;
-}
+var20 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_writetype,((val*)NULL)) on <var_writetype:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-{ /* Inline kernel#Int#!= (var96,1l) on <var96:Int> */
-var101 = var96 == 1l;
-var102 = !var101;
-var99 = var102;
-goto RET_LABEL100;
-RET_LABEL100:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_writetype,var_other12) on <var_writetype:nullable MType(MType)> */
+var25 = var_writetype == var_other12;
+var23 = var25;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
 }
-if (var99){
-if (likely(varonce103!=NULL)) {
-var104 = varonce103;
-} else {
-var105 = "Type Error: `for` expects only one variable when using `Iterator`.";
-var106 = core__flat___NativeString___to_s_full(var105, 66l, 66l);
-var104 = var106;
-varonce103 = var104;
+var21 = var23;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var104); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var20 = var21;
 }
+if (var20){
+goto RET_LABEL;
 } else {
-if (var_variables == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1218);
-fatal_exit(1);
-} else {
-var107 = core___core__SequenceRead___Collection__first(var_variables);
-}
-{
-var108 = ((val*(*)(val* self))(var_coltype->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype); /* arguments on <var_coltype:MClassType>*/
 }
 {
-var109 = core___core__SequenceRead___Collection__first(var108);
+var26 = nitc__typing___AReassignFormExpr___resolve_reassignment(self, var_v, var_readtype, var_writetype);
 }
+var_rettype = var26;
 {
-{ /* Inline typing#Variable#declared_type= (var107,var109) on <var107:nullable Object(Variable)> */
-var107->attrs[COLOR_nitc__typing__Variable___declared_type].val = var109; /* _declared_type on <var107:nullable Object(Variable)> */
-RET_LABEL110:(void)0;
-}
-}
-}
-var_is_col = 1;
-} else {
+nitc__typing___nitc__typing__TypeVisitor___set_variable(var_v, self, var_variable, var_rettype); /* Direct call typing$TypeVisitor$set_variable on <var_v:TypeVisitor>*/
 }
-if (var_mapit_cla == NULL) {
-var112 = 0; /* is null */
+if (var_rettype == NULL) {
+var27 = 0; /* is null */
 } else {
-var112 = 1; /* arg is null and recv is not */
+var27 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_mapit_cla,((val*)NULL)) on <var_mapit_cla:nullable MClass> */
-var_other75 = ((val*)NULL);
+{ /* Inline kernel$Object$!= (var_rettype,((val*)NULL)) on <var_rettype:nullable MType> */
+var_other = ((val*)NULL);
 {
-var115 = ((short int(*)(val* self, val* p0))(var_mapit_cla->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mapit_cla, var_other75); /* == on <var_mapit_cla:nullable MClass(MClass)>*/
-}
-var116 = !var115;
-var113 = var116;
-goto RET_LABEL114;
-RET_LABEL114:(void)0;
+var30 = ((short int(*)(val* self, val* p0))(var_rettype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_rettype, var_other); /* == on <var_rettype:nullable MType(MType)>*/
 }
-var112 = var113;
+var31 = !var30;
+var28 = var31;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
-var_117 = var112;
-if (var112){
-var118 = NEW_core__Array(&type_core__Array__nitc__MType);
-{
-core___core__Array___with_capacity(var118, 2l); /* Direct call array#Array#with_capacity on <var118:Array[MType]>*/
+var27 = var28;
 }
-var_119 = var118;
 {
-{ /* Inline model#MClass#mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
-var122 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
-if (unlikely(var122 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+{ /* Inline typing$AExpr$is_typed= (self,var27) on <self:AVarReassignExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = var27; /* _is_typed on <self:AVarReassignExpr> */
+RET_LABEL32:(void)0;
 }
-var120 = var122;
-RET_LABEL121:(void)0;
 }
+RET_LABEL:;
 }
+/* method typing$AContinueExpr$accept_typing for (self: AContinueExpr, TypeVisitor) */
+void nitc__typing___AContinueExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable AExpr */;
+val* var2 /* : nullable AExpr */;
+val* var_nexpr /* var nexpr: nullable AExpr */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+val* var8 /* : nullable MType */;
+var_v = p0;
 {
-var123 = nitc___nitc__MType___as_nullable(var120);
+{ /* Inline parser_nodes$AEscapeExpr$n_expr (self) on <self:AContinueExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AEscapeExpr___n_expr].val; /* _n_expr on <self:AContinueExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_119, var123); /* Direct call array#AbstractArray#push on <var_119:Array[MType]>*/
 }
+var_nexpr = var;
+if (var_nexpr == NULL) {
+var3 = 0; /* is null */
+} else {
+var3 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline model#MClass#mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
-var126 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
-if (unlikely(var126 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+var6 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
-var124 = var126;
-RET_LABEL125:(void)0;
+var7 = !var6;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
+var3 = var4;
 }
+if (var3){
 {
-var127 = nitc___nitc__MType___as_nullable(var124);
+var8 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
 }
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_119, var127); /* Direct call array#AbstractArray#push on <var_119:Array[MType]>*/
+} else {
 }
 {
-var128 = nitc___nitc__MClass___get_mtype(var_mapit_cla, var_119);
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AContinueExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AContinueExpr> */
+RET_LABEL9:(void)0;
 }
-{
-var129 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_ittype, var128);
 }
-var111 = var129;
-} else {
-var111 = var_117;
+RET_LABEL:;
 }
-if (var111){
+/* method typing$ABreakExpr$accept_typing for (self: ABreakExpr, TypeVisitor) */
+void nitc__typing___ABreakExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable AExpr */;
+val* var2 /* : nullable AExpr */;
+val* var_nexpr /* var nexpr: nullable AExpr */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+val* var8 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline typing#TypeVisitor#mmodule (var_v) on <var_v:TypeVisitor> */
-var132 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
-if (unlikely(var132 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
-fatal_exit(1);
+{ /* Inline parser_nodes$AEscapeExpr$n_expr (self) on <self:ABreakExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AEscapeExpr___n_expr].val; /* _n_expr on <self:ABreakExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
-var130 = var132;
-RET_LABEL131:(void)0;
 }
+var_nexpr = var;
+if (var_nexpr == NULL) {
+var3 = 0; /* is null */
+} else {
+var3 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline typing#TypeVisitor#anchor (var_v) on <var_v:TypeVisitor> */
-var135 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___anchor].val; /* _anchor on <var_v:TypeVisitor> */
-var133 = var135;
-RET_LABEL134:(void)0;
+var6 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
+var7 = !var6;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
-{
-var136 = nitc___nitc__MType___supertype_to(var_ittype, var130, var133, var_mapit_cla);
+var3 = var4;
 }
-var_coltype137 = var136;
+if (var3){
 {
-{ /* Inline scope#AForGroup#variables (self) on <self:AForGroup> */
-var140 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
-var138 = var140;
-RET_LABEL139:(void)0;
-}
+var8 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
 }
-var_variables141 = var138;
-if (var_variables141 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1227);
-fatal_exit(1);
 } else {
-{ /* Inline array#AbstractArrayRead#length (var_variables141) on <var_variables141:nullable Array[Variable]> */
-if (unlikely(var_variables141 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
-fatal_exit(1);
 }
-var144 = var_variables141->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_variables141:nullable Array[Variable]> */
-var142 = var144;
-RET_LABEL143:(void)0;
+{
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:ABreakExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ABreakExpr> */
+RET_LABEL9:(void)0;
 }
 }
-{
-{ /* Inline kernel#Int#!= (var142,2l) on <var142:Int> */
-var147 = var142 == 2l;
-var148 = !var147;
-var145 = var148;
-goto RET_LABEL146;
-RET_LABEL146:(void)0;
+RET_LABEL:;
 }
+/* method typing$AReturnExpr$accept_typing for (self: AReturnExpr, TypeVisitor) */
+void nitc__typing___AReturnExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable AExpr */;
+val* var2 /* : nullable AExpr */;
+val* var_nexpr /* var nexpr: nullable AExpr */;
+val* var3 /* : nullable MPropDef */;
+val* var5 /* : nullable MPropDef */;
+val* var_mpropdef /* var mpropdef: nullable MPropDef */;
+short int var6 /* : Bool */;
+int cltype;
+int idtype;
+val* var7 /* : nullable MSignature */;
+val* var9 /* : nullable MSignature */;
+val* var10 /* : nullable MType */;
+val* var12 /* : nullable MType */;
+val* var_ret_type /* var ret_type: nullable Object */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+val* var16 /* : nullable MType */;
+val* var18 /* : nullable MType */;
+short int var19 /* : Bool */;
+short int var20 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var22 /* : Bool */;
+short int var23 /* : Bool */;
+short int var24 /* : Bool */;
+short int var25 /* : Bool */;
+short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+val* var29 /* : nullable MType */;
+val* var30 /* : nullable MType */;
+static val* varonce;
+val* var31 /* : String */;
+char* var32 /* : CString */;
+val* var33 /* : String */;
+val* var34 /* : nullable Int */;
+val* var35 /* : nullable Int */;
+val* var36 /* : nullable Bool */;
+val* var37 /* : nullable Bool */;
+short int var38 /* : Bool */;
+short int var39 /* : Bool */;
+short int var41 /* : Bool */;
+short int var42 /* : Bool */;
+static val* varonce43;
+val* var44 /* : String */;
+char* var45 /* : CString */;
+val* var46 /* : String */;
+val* var47 /* : nullable Int */;
+val* var48 /* : nullable Int */;
+val* var49 /* : nullable Bool */;
+val* var50 /* : nullable Bool */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$AEscapeExpr$n_expr (self) on <self:AReturnExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AEscapeExpr___n_expr].val; /* _n_expr on <self:AReturnExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
-if (var145){
-if (likely(varonce149!=NULL)) {
-var150 = varonce149;
-} else {
-var151 = "Type Error: `for` expects two variables when using `MapIterator`.";
-var152 = core__flat___NativeString___to_s_full(var151, 65l, 65l);
-var150 = var152;
-varonce149 = var150;
 }
+var_nexpr = var;
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var150); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline typing$TypeVisitor$mpropdef (var_v) on <var_v:TypeVisitor> */
+var5 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
+var3 = var5;
+RET_LABEL4:(void)0;
 }
+}
+var_mpropdef = var3;
+/* <var_mpropdef:nullable MPropDef> isa MMethodDef */
+cltype = type_nitc__MMethodDef.color;
+idtype = type_nitc__MMethodDef.id;
+if(var_mpropdef == NULL) {
+var6 = 0;
 } else {
-if (var_variables141 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1230);
-fatal_exit(1);
+if(cltype >= var_mpropdef->type->table_size) {
+var6 = 0;
 } else {
-var153 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_variables141, 0l);
+var6 = var_mpropdef->type->type_table[cltype] == idtype;
 }
-{
-var154 = ((val*(*)(val* self))(var_coltype137->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype137); /* arguments on <var_coltype137:MClassType>*/
 }
+if (var6){
 {
-var155 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var154, 0l);
+{ /* Inline model$MMethodDef$msignature (var_mpropdef) on <var_mpropdef:nullable MPropDef(MMethodDef)> */
+var9 = var_mpropdef->attrs[COLOR_nitc__model__MMethodDef___msignature].val; /* _msignature on <var_mpropdef:nullable MPropDef(MMethodDef)> */
+var7 = var9;
+RET_LABEL8:(void)0;
 }
-{
-{ /* Inline typing#Variable#declared_type= (var153,var155) on <var153:nullable Object(Variable)> */
-var153->attrs[COLOR_nitc__typing__Variable___declared_type].val = var155; /* _declared_type on <var153:nullable Object(Variable)> */
-RET_LABEL156:(void)0;
 }
+if (var7 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var_variables141 == NULL) {
 PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1231);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1082);
 fatal_exit(1);
 } else {
-var157 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_variables141, 1l);
-}
-{
-var158 = ((val*(*)(val* self))(var_coltype137->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype137); /* arguments on <var_coltype137:MClassType>*/
-}
-{
-var159 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var158, 1l);
-}
-{
-{ /* Inline typing#Variable#declared_type= (var157,var159) on <var157:nullable Object(Variable)> */
-var157->attrs[COLOR_nitc__typing__Variable___declared_type].val = var159; /* _declared_type on <var157:nullable Object(Variable)> */
-RET_LABEL160:(void)0;
+{ /* Inline model$MSignature$return_mtype (var7) on <var7:nullable MSignature> */
+if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1891);
+fatal_exit(1);
 }
+var12 = var7->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var7:nullable MSignature> */
+var10 = var12;
+RET_LABEL11:(void)0;
 }
-var_is_map = 1;
-} else {
 }
-var162 = !var_is_col;
-var_163 = var162;
-if (var162){
-var164 = !var_is_map;
-var161 = var164;
+var_ret_type = var10;
 } else {
-var161 = var_163;
-}
-if (var161){
-if (likely(varonce165!=NULL)) {
-var166 = varonce165;
+/* <var_mpropdef:nullable MPropDef> isa MAttributeDef */
+cltype14 = type_nitc__MAttributeDef.color;
+idtype15 = type_nitc__MAttributeDef.id;
+if(var_mpropdef == NULL) {
+var13 = 0;
 } else {
-var167 = "Type Error: `for` expects the method `iterator` to return an `Iterator` or `MapIterator` type.";
-var168 = core__flat___NativeString___to_s_full(var167, 94l, 94l);
-var166 = var168;
-varonce165 = var166;
-}
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var166); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
-}
-goto RET_LABEL;
+if(cltype14 >= var_mpropdef->type->table_size) {
+var13 = 0;
 } else {
+var13 = var_mpropdef->type->type_table[cltype14] == idtype15;
 }
-{
-var169 = ((short int(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__need_anchor]))(var_mtype); /* need_anchor on <var_mtype:MType>*/
 }
-if (var169){
+if (var13){
 {
-var170 = nitc__typing___nitc__typing__TypeVisitor___anchor_to(var_v, var_mtype);
-}
-var_mtype = var170;
-} else {
+{ /* Inline model$MAttributeDef$static_mtype (var_mpropdef) on <var_mpropdef:nullable MPropDef(MAttributeDef)> */
+var18 = var_mpropdef->attrs[COLOR_nitc__model__MAttributeDef___static_mtype].val; /* _static_mtype on <var_mpropdef:nullable MPropDef(MAttributeDef)> */
+var16 = var18;
+RET_LABEL17:(void)0;
 }
-{
-var171 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__undecorate]))(var_mtype); /* undecorate on <var_mtype:MType>*/
 }
-var_mtype = var171;
-/* <var_mtype:MType> isa MClassType */
-cltype173 = type_nitc__MClassType.color;
-idtype174 = type_nitc__MClassType.id;
-if(cltype173 >= var_mtype->type->table_size) {
-var172 = 0;
+var_ret_type = var16;
 } else {
-var172 = var_mtype->type->type_table[cltype173] == idtype174;
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(!var172)) {
-var_class_name = var_mtype == NULL ? "null" : var_mtype->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "MClassType", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1245);
+PRINT_ERROR("Runtime error: %s", "Aborted");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1086);
 fatal_exit(1);
 }
-{
-{ /* Inline typing#AForGroup#coltype= (self,var_mtype) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___coltype].val = var_mtype; /* _coltype on <self:AForGroup> */
-RET_LABEL175:(void)0;
-}
-}
-if (likely(varonce176!=NULL)) {
-var177 = varonce176;
-} else {
-var178 = "is_ok";
-var179 = core__flat___NativeString___to_s_full(var178, 5l, 5l);
-var177 = var179;
-varonce176 = var177;
-}
-{
-var180 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var177, 0);
 }
-var_ikdef = var180;
-if (var_ikdef == NULL) {
-var181 = 1; /* is null */
+if (var_nexpr == NULL) {
+var19 = 0; /* is null */
 } else {
-var181 = 0; /* arg is null but recv is not */
+var19 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_ikdef,((val*)NULL)) on <var_ikdef:nullable CallSite> */
+{ /* Inline kernel$Object$!= (var_nexpr,((val*)NULL)) on <var_nexpr:nullable AExpr> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_ikdef,var_other) on <var_ikdef:nullable CallSite(CallSite)> */
-var186 = var_ikdef == var_other;
-var184 = var186;
-goto RET_LABEL185;
-RET_LABEL185:(void)0;
-}
+var22 = ((short int(*)(val* self, val* p0))(var_nexpr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_nexpr, var_other); /* == on <var_nexpr:nullable AExpr(AExpr)>*/
 }
-var182 = var184;
-goto RET_LABEL183;
-RET_LABEL183:(void)0;
+var23 = !var22;
+var20 = var23;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
-var181 = var182;
+var19 = var20;
 }
-if (var181){
-if (unlikely(varonce187==NULL)) {
-var188 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce189!=NULL)) {
-var190 = varonce189;
+if (var19){
+if (var_ret_type == NULL) {
+var24 = 0; /* is null */
 } else {
-var191 = "Type Error: `for` expects a method `is_ok` in type `";
-var192 = core__flat___NativeString___to_s_full(var191, 52l, 52l);
-var190 = var192;
-varonce189 = var190;
+var24 = 1; /* arg is null and recv is not */
 }
-((struct instance_core__NativeArray*)var188)->values[0]=var190;
-if (likely(varonce193!=NULL)) {
-var194 = varonce193;
-} else {
-var195 = "`.";
-var196 = core__flat___NativeString___to_s_full(var195, 2l, 2l);
-var194 = var196;
-varonce193 = var194;
+if (0) {
+{ /* Inline kernel$Object$!= (var_ret_type,((val*)NULL)) on <var_ret_type:nullable Object(nullable MType)> */
+var_other = ((val*)NULL);
+{
+var27 = ((short int(*)(val* self, val* p0))(var_ret_type->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ret_type, var_other); /* == on <var_ret_type:nullable Object(MType)>*/
 }
-((struct instance_core__NativeArray*)var188)->values[2]=var194;
-} else {
-var188 = varonce187;
-varonce187 = NULL;
+var28 = !var27;
+var25 = var28;
+goto RET_LABEL26;
+RET_LABEL26:(void)0;
 }
-{
-var197 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
+var24 = var25;
 }
-((struct instance_core__NativeArray*)var188)->values[1]=var197;
+if (var24){
 {
-var198 = ((val*(*)(val* self))(var188->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var188); /* native_to_s on <var188:NativeArray[String]>*/
+var29 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_ret_type);
 }
-varonce187 = var188;
+} else {
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var198); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var30 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nexpr);
 }
-goto RET_LABEL;
+if (likely(varonce!=NULL)) {
+var31 = varonce;
 } else {
+var32 = "Error: `return` with value in a procedure.";
+var34 = (val*)(42l<<2|1);
+var35 = (val*)(42l<<2|1);
+var36 = (val*)((long)(0)<<2|3);
+var37 = (val*)((long)(0)<<2|3);
+var33 = core__flat___CString___to_s_unsafe(var32, var34, var35, var36, var37);
+var31 = var33;
+varonce = var31;
 }
 {
-{ /* Inline typing#AForGroup#method_is_ok= (self,var_ikdef) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val = var_ikdef; /* _method_is_ok on <self:AForGroup> */
-RET_LABEL199:(void)0;
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, var_nexpr, var31); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+goto RET_LABEL;
 }
-if (likely(varonce200!=NULL)) {
-var201 = varonce200;
 } else {
-var202 = "item";
-var203 = core__flat___NativeString___to_s_full(var202, 4l, 4l);
-var201 = var203;
-varonce200 = var201;
-}
-{
-var204 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var201, 0);
-}
-var_itemdef = var204;
-if (var_itemdef == NULL) {
-var205 = 1; /* is null */
+if (var_ret_type == NULL) {
+var38 = 0; /* is null */
 } else {
-var205 = 0; /* arg is null but recv is not */
+var38 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_itemdef,((val*)NULL)) on <var_itemdef:nullable CallSite> */
+{ /* Inline kernel$Object$!= (var_ret_type,((val*)NULL)) on <var_ret_type:nullable Object(nullable MType)> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_itemdef,var_other) on <var_itemdef:nullable CallSite(CallSite)> */
-var210 = var_itemdef == var_other;
-var208 = var210;
-goto RET_LABEL209;
-RET_LABEL209:(void)0;
-}
-}
-var206 = var208;
-goto RET_LABEL207;
-RET_LABEL207:(void)0;
-}
-var205 = var206;
+var41 = ((short int(*)(val* self, val* p0))(var_ret_type->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ret_type, var_other); /* == on <var_ret_type:nullable Object(MType)>*/
 }
-if (var205){
-if (unlikely(varonce211==NULL)) {
-var212 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce213!=NULL)) {
-var214 = varonce213;
-} else {
-var215 = "Type Error: `for` expects a method `item` in type `";
-var216 = core__flat___NativeString___to_s_full(var215, 51l, 51l);
-var214 = var216;
-varonce213 = var214;
+var42 = !var41;
+var39 = var42;
+goto RET_LABEL40;
+RET_LABEL40:(void)0;
 }
-((struct instance_core__NativeArray*)var212)->values[0]=var214;
-if (likely(varonce217!=NULL)) {
-var218 = varonce217;
-} else {
-var219 = "`.";
-var220 = core__flat___NativeString___to_s_full(var219, 2l, 2l);
-var218 = var220;
-varonce217 = var218;
+var38 = var39;
 }
-((struct instance_core__NativeArray*)var212)->values[2]=var218;
+if (var38){
+if (likely(varonce43!=NULL)) {
+var44 = varonce43;
 } else {
-var212 = varonce211;
-varonce211 = NULL;
-}
-{
-var221 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
-}
-((struct instance_core__NativeArray*)var212)->values[1]=var221;
-{
-var222 = ((val*(*)(val* self))(var212->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var212); /* native_to_s on <var212:NativeArray[String]>*/
+var45 = "Error: `return` without value in a function.";
+var47 = (val*)(44l<<2|1);
+var48 = (val*)(44l<<2|1);
+var49 = (val*)((long)(0)<<2|3);
+var50 = (val*)((long)(0)<<2|3);
+var46 = core__flat___CString___to_s_unsafe(var45, var47, var48, var49, var50);
+var44 = var46;
+varonce43 = var44;
 }
-varonce211 = var212;
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var222); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var44); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
 goto RET_LABEL;
 } else {
 }
-{
-{ /* Inline typing#AForGroup#method_item= (self,var_itemdef) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_item].val = var_itemdef; /* _method_item on <self:AForGroup> */
-RET_LABEL223:(void)0;
-}
-}
-if (likely(varonce224!=NULL)) {
-var225 = varonce224;
-} else {
-var226 = "next";
-var227 = core__flat___NativeString___to_s_full(var226, 4l, 4l);
-var225 = var227;
-varonce224 = var225;
 }
 {
-var228 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var225, 0);
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AReturnExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AReturnExpr> */
+RET_LABEL51:(void)0;
 }
-var_nextdef = var228;
-if (var_nextdef == NULL) {
-var229 = 1; /* is null */
-} else {
-var229 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_nextdef,((val*)NULL)) on <var_nextdef:nullable CallSite> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_nextdef,var_other) on <var_nextdef:nullable CallSite(CallSite)> */
-var234 = var_nextdef == var_other;
-var232 = var234;
-goto RET_LABEL233;
-RET_LABEL233:(void)0;
+RET_LABEL:;
 }
+/* method typing$AAbortExpr$accept_typing for (self: AAbortExpr, TypeVisitor) */
+void nitc__typing___AAbortExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+var_v = p0;
+{
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AAbortExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AAbortExpr> */
+RET_LABEL1:(void)0;
 }
-var230 = var232;
-goto RET_LABEL231;
-RET_LABEL231:(void)0;
 }
-var229 = var230;
+RET_LABEL:;
 }
-if (var229){
-if (unlikely(varonce235==NULL)) {
-var236 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce237!=NULL)) {
-var238 = varonce237;
-} else {
-var239 = "Type Error: `for` expects a method `next` in type ";
-var240 = core__flat___NativeString___to_s_full(var239, 50l, 50l);
-var238 = var240;
-varonce237 = var238;
+/* method typing$AIfExpr$accept_typing for (self: AIfExpr, TypeVisitor) */
+void nitc__typing___AIfExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : nullable AExpr */;
+val* var6 /* : nullable AExpr */;
+val* var7 /* : nullable AExpr */;
+val* var9 /* : nullable AExpr */;
+short int var11 /* : Bool */;
+val* var12 /* : nullable AExpr */;
+val* var14 /* : nullable AExpr */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var18 /* : Bool */;
+short int var19 /* : Bool */;
+short int var_ /* var : Bool */;
+val* var20 /* : nullable AExpr */;
+val* var22 /* : nullable AExpr */;
+short int var23 /* : Bool */;
+short int var24 /* : Bool */;
+val* var_other26 /* var other: nullable Object */;
+short int var27 /* : Bool */;
+short int var29 /* : Bool */;
+val* var30 /* : nullable AExpr */;
+val* var32 /* : nullable AExpr */;
+val* var33 /* : nullable MType */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$AIfExpr$n_expr (self) on <self:AIfExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val; /* _n_expr on <self:AIfExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-((struct instance_core__NativeArray*)var236)->values[0]=var238;
-if (likely(varonce241!=NULL)) {
-var242 = varonce241;
-} else {
-var243 = ".";
-var244 = core__flat___NativeString___to_s_full(var243, 1l, 1l);
-var242 = var244;
-varonce241 = var242;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1924);
+fatal_exit(1);
 }
-((struct instance_core__NativeArray*)var236)->values[2]=var242;
-} else {
-var236 = varonce235;
-varonce235 = NULL;
+var = var2;
+RET_LABEL1:(void)0;
 }
-{
-var245 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
 }
-((struct instance_core__NativeArray*)var236)->values[1]=var245;
 {
-var246 = ((val*(*)(val* self))(var236->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var236); /* native_to_s on <var236:NativeArray[String]>*/
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
-varonce235 = var236;
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var246); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline parser_nodes$AIfExpr$n_then (self) on <self:AIfExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-goto RET_LABEL;
-} else {
 }
 {
-{ /* Inline typing#AForGroup#method_next= (self,var_nextdef) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_next].val = var_nextdef; /* _method_next on <self:AForGroup> */
-RET_LABEL247:(void)0;
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var4); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
+{
+{ /* Inline parser_nodes$AIfExpr$n_else (self) on <self:AIfExpr> */
+var9 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
+var7 = var9;
+RET_LABEL8:(void)0;
 }
-if (likely(varonce248!=NULL)) {
-var249 = varonce248;
-} else {
-var250 = "finish";
-var251 = core__flat___NativeString___to_s_full(var250, 6l, 6l);
-var249 = var251;
-varonce248 = var249;
 }
 {
-var252 = nitc__typing___nitc__typing__TypeVisitor___try_get_method(var_v, self, var_ittype, var249, 0);
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var7); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-{ /* Inline typing#AForGroup#method_finish= (self,var252) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val = var252; /* _method_finish on <self:AForGroup> */
-RET_LABEL253:(void)0;
-}
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AIfExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AIfExpr> */
+RET_LABEL10:(void)0;
 }
-if (var_is_map){
-if (likely(varonce254!=NULL)) {
-var255 = varonce254;
-} else {
-var256 = "key";
-var257 = core__flat___NativeString___to_s_full(var256, 3l, 3l);
-var255 = var257;
-varonce254 = var255;
 }
 {
-var258 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var255, 0);
+{ /* Inline parser_nodes$AIfExpr$n_then (self) on <self:AIfExpr> */
+var14 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
+var12 = var14;
+RET_LABEL13:(void)0;
 }
-var_keydef = var258;
-if (var_keydef == NULL) {
-var259 = 1; /* is null */
+}
+if (var12 == NULL) {
+var15 = 0; /* is null */
 } else {
-var259 = 0; /* arg is null but recv is not */
+var15 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_keydef,((val*)NULL)) on <var_keydef:nullable CallSite> */
+{ /* Inline kernel$Object$!= (var12,((val*)NULL)) on <var12:nullable AExpr> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_keydef,var_other) on <var_keydef:nullable CallSite(CallSite)> */
-var264 = var_keydef == var_other;
-var262 = var264;
-goto RET_LABEL263;
-RET_LABEL263:(void)0;
-}
+var18 = ((short int(*)(val* self, val* p0))(var12->class->vft[COLOR_core__kernel__Object___61d_61d]))(var12, var_other); /* == on <var12:nullable AExpr(AExpr)>*/
 }
-var260 = var262;
-goto RET_LABEL261;
-RET_LABEL261:(void)0;
+var19 = !var18;
+var16 = var19;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
 }
-var259 = var260;
+var15 = var16;
 }
-if (var259){
-if (unlikely(varonce265==NULL)) {
-var266 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce267!=NULL)) {
-var268 = varonce267;
-} else {
-var269 = "Type Error: `for` expects a method `key` in type `";
-var270 = core__flat___NativeString___to_s_full(var269, 50l, 50l);
-var268 = var270;
-varonce267 = var268;
+var_ = var15;
+if (var15){
+{
+{ /* Inline parser_nodes$AIfExpr$n_else (self) on <self:AIfExpr> */
+var22 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
+var20 = var22;
+RET_LABEL21:(void)0;
 }
-((struct instance_core__NativeArray*)var266)->values[0]=var268;
-if (likely(varonce271!=NULL)) {
-var272 = varonce271;
-} else {
-var273 = "`.";
-var274 = core__flat___NativeString___to_s_full(var273, 2l, 2l);
-var272 = var274;
-varonce271 = var272;
 }
-((struct instance_core__NativeArray*)var266)->values[2]=var272;
+if (var20 == NULL) {
+var23 = 1; /* is null */
 } else {
-var266 = varonce265;
-varonce265 = NULL;
-}
-{
-var275 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
-}
-((struct instance_core__NativeArray*)var266)->values[1]=var275;
-{
-var276 = ((val*(*)(val* self))(var266->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var266); /* native_to_s on <var266:NativeArray[String]>*/
+var23 = 0; /* arg is null but recv is not */
 }
-varonce265 = var266;
+if (0) {
+{ /* Inline kernel$Object$== (var20,((val*)NULL)) on <var20:nullable AExpr> */
+var_other26 = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var276); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline kernel$Object$is_same_instance (var20,var_other26) on <var20:nullable AExpr(AExpr)> */
+var29 = var20 == var_other26;
+var27 = var29;
+goto RET_LABEL28;
+RET_LABEL28:(void)0;
 }
-goto RET_LABEL;
-} else {
 }
-{
-{ /* Inline typing#AForGroup#method_key= (self,var_keydef) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_key].val = var_keydef; /* _method_key on <self:AForGroup> */
-RET_LABEL277:(void)0;
+var24 = var27;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
+var23 = var24;
 }
+var11 = var23;
 } else {
+var11 = var_;
 }
+if (var11){
 {
-{ /* Inline scope#AForGroup#variables (self) on <self:AForGroup> */
-var281 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
-var279 = var281;
-RET_LABEL280:(void)0;
+{ /* Inline parser_nodes$AIfExpr$n_then (self) on <self:AIfExpr> */
+var32 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
+var30 = var32;
+RET_LABEL31:(void)0;
 }
 }
-if (var279 == NULL) {
+if (var30 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1280);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1122);
 fatal_exit(1);
 } else {
-{ /* Inline array#AbstractArrayRead#length (var279) on <var279:nullable Array[Variable]> */
-if (unlikely(var279 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
-fatal_exit(1);
+var33 = ((val*(*)(val* self))(var30->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var30); /* mtype on <var30:nullable AExpr>*/
 }
-var284 = var279->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var279:nullable Array[Variable]> */
-var282 = var284;
-RET_LABEL283:(void)0;
+{
+{ /* Inline typing$AExpr$mtype= (self,var33) on <self:AIfExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var33; /* _mtype on <self:AIfExpr> */
+RET_LABEL34:(void)0;
 }
 }
-{
-{ /* Inline kernel#Int#== (var282,1l) on <var282:Int> */
-var287 = var282 == 1l;
-var285 = var287;
-goto RET_LABEL286;
-RET_LABEL286:(void)0;
+} else {
 }
+RET_LABEL:;
 }
-var_288 = var285;
-if (var285){
+/* method typing$AIfexprExpr$accept_typing for (self: AIfexprExpr, TypeVisitor) */
+void nitc__typing___AIfexprExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AExpr */;
+val* var6 /* : AExpr */;
+val* var7 /* : nullable MType */;
+val* var_t1 /* var t1: nullable MType */;
+val* var8 /* : AExpr */;
+val* var10 /* : AExpr */;
+val* var11 /* : nullable MType */;
+val* var_t2 /* var t2: nullable MType */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var16 /* : Bool */;
+short int var18 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var19 /* : Bool */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+short int var24 /* : Bool */;
+val* var25 /* : Array[MType] */;
+val* var_26 /* var : Array[MType] */;
+val* var27 /* : nullable MType */;
+val* var_t /* var t: nullable MType */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+val* var34 /* : NativeArray[String] */;
+static val* varonce;
+static val* varonce35;
+val* var36 /* : String */;
+char* var37 /* : CString */;
+val* var38 /* : String */;
+val* var39 /* : nullable Int */;
+val* var40 /* : nullable Int */;
+val* var41 /* : nullable Bool */;
+val* var42 /* : nullable Bool */;
+static val* varonce43;
+val* var44 /* : String */;
+char* var45 /* : CString */;
+val* var46 /* : String */;
+val* var47 /* : nullable Int */;
+val* var48 /* : nullable Int */;
+val* var49 /* : nullable Bool */;
+val* var50 /* : nullable Bool */;
+static val* varonce51;
+val* var52 /* : String */;
+char* var53 /* : CString */;
+val* var54 /* : String */;
+val* var55 /* : nullable Int */;
+val* var56 /* : nullable Int */;
+val* var57 /* : nullable Bool */;
+val* var58 /* : nullable Bool */;
+val* var59 /* : String */;
+val* var60 /* : String */;
+val* var61 /* : String */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#AForGroup#n_expr (self) on <self:AForGroup> */
-var291 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
-if (unlikely(var291 == NULL)) {
+{ /* Inline parser_nodes$AIfexprExpr$n_expr (self) on <self:AIfexprExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1943);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1947);
 fatal_exit(1);
 }
-var289 = var291;
-RET_LABEL290:(void)0;
-}
-}
-/* <var289:AExpr> isa ARangeExpr */
-cltype293 = type_nitc__ARangeExpr.color;
-idtype294 = type_nitc__ARangeExpr.id;
-if(cltype293 >= var289->type->table_size) {
-var292 = 0;
-} else {
-var292 = var289->type->type_table[cltype293] == idtype294;
+var = var2;
+RET_LABEL1:(void)0;
 }
-var278 = var292;
-} else {
-var278 = var_288;
 }
-if (var278){
 {
-{ /* Inline scope#AForGroup#variables (self) on <self:AForGroup> */
-var297 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
-var295 = var297;
-RET_LABEL296:(void)0;
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
+{
+{ /* Inline parser_nodes$AIfexprExpr$n_then (self) on <self:AIfexprExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var295 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1281);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1953);
 fatal_exit(1);
-} else {
-var298 = core___core__SequenceRead___Collection__first(var295);
 }
-var_variable = var298;
-{
-{ /* Inline typing#Variable#declared_type (var_variable) on <var_variable:Variable> */
-var301 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:Variable> */
-var299 = var301;
-RET_LABEL300:(void)0;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
-if (unlikely(var299 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1282);
-fatal_exit(1);
+{
+var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var4);
 }
-var_vtype = var299;
+var_t1 = var7;
 {
-{ /* Inline parser_nodes#AForGroup#n_expr (self) on <self:AForGroup> */
-var304 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
-if (unlikely(var304 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1943);
+{ /* Inline parser_nodes$AIfexprExpr$n_else (self) on <self:AIfexprExpr> */
+var10 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
+if (unlikely(var10 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_else");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1959);
 fatal_exit(1);
 }
-var302 = var304;
-RET_LABEL303:(void)0;
+var8 = var10;
+RET_LABEL9:(void)0;
 }
 }
-/* <var302:AExpr> isa AOrangeExpr */
-cltype306 = type_nitc__AOrangeExpr.color;
-idtype307 = type_nitc__AOrangeExpr.id;
-if(cltype306 >= var302->type->table_size) {
-var305 = 0;
-} else {
-var305 = var302->type->type_table[cltype306] == idtype307;
+{
+var11 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var8);
 }
-if (var305){
-if (likely(varonce308!=NULL)) {
-var309 = varonce308;
+var_t2 = var11;
+if (var_t1 == NULL) {
+var13 = 1; /* is null */
 } else {
-var310 = "<";
-var311 = core__flat___NativeString___to_s_full(var310, 1l, 1l);
-var309 = var311;
-varonce308 = var309;
+var13 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+var_other = ((val*)NULL);
 {
-var312 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var309, 0);
+{ /* Inline kernel$Object$is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
+var18 = var_t1 == var_other;
+var16 = var18;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
 }
-{
-{ /* Inline typing#AForGroup#method_lt= (self,var312) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = var312; /* _method_lt on <self:AForGroup> */
-RET_LABEL313:(void)0;
 }
+var14 = var16;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
+}
+var13 = var14;
 }
+var_ = var13;
+if (var13){
+var12 = var_;
 } else {
-if (likely(varonce314!=NULL)) {
-var315 = varonce314;
+if (var_t2 == NULL) {
+var19 = 1; /* is null */
 } else {
-var316 = "<=";
-var317 = core__flat___NativeString___to_s_full(var316, 2l, 2l);
-var315 = var317;
-varonce314 = var315;
+var19 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
+var_other = ((val*)NULL);
 {
-var318 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var315, 0);
+{ /* Inline kernel$Object$is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
+var24 = var_t2 == var_other;
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
-{
-{ /* Inline typing#AForGroup#method_lt= (self,var318) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = var318; /* _method_lt on <self:AForGroup> */
-RET_LABEL319:(void)0;
 }
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
+}
+var19 = var20;
 }
+var12 = var19;
 }
-if (likely(varonce320!=NULL)) {
-var321 = varonce320;
+if (var12){
+goto RET_LABEL;
 } else {
-var322 = "successor";
-var323 = core__flat___NativeString___to_s_full(var322, 9l, 9l);
-var321 = var323;
-varonce320 = var321;
 }
+var25 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-var324 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var321, 0);
+core___core__Array___with_capacity(var25, 2l); /* Direct call array$Array$with_capacity on <var25:Array[MType]>*/
 }
+var_26 = var25;
 {
-{ /* Inline typing#AForGroup#method_successor= (self,var324) on <self:AForGroup> */
-self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val = var324; /* _method_successor on <self:AForGroup> */
-RET_LABEL325:(void)0;
-}
-}
-} else {
-}
-RET_LABEL:;
-}
-/* method typing#AWithExpr#method_start for (self: AWithExpr): nullable CallSite */
-val* nitc__typing___AWithExpr___method_start(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val; /* _method_start on <self:AWithExpr> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AWithExpr#method_start= for (self: AWithExpr, nullable CallSite) */
-void nitc__typing___AWithExpr___method_start_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val = p0; /* _method_start on <self:AWithExpr> */
-RET_LABEL:;
-}
-/* method typing#AWithExpr#method_finish for (self: AWithExpr): nullable CallSite */
-val* nitc__typing___AWithExpr___method_finish(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val; /* _method_finish on <self:AWithExpr> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method typing#AWithExpr#method_finish= for (self: AWithExpr, nullable CallSite) */
-void nitc__typing___AWithExpr___method_finish_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val = p0; /* _method_finish on <self:AWithExpr> */
-RET_LABEL:;
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t1); /* Direct call array$AbstractArray$push on <var_26:Array[MType]>*/
 }
-/* method typing#AWithExpr#accept_typing for (self: AWithExpr, TypeVisitor) */
-void nitc__typing___AWithExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-static val* varonce;
-val* var10 /* : String */;
-char* var11 /* : NativeString */;
-val* var12 /* : String */;
-val* var13 /* : AExpr */;
-val* var15 /* : AExpr */;
-short int var16 /* : Bool */;
-int cltype;
-int idtype;
-val* var17 /* : nullable CallSite */;
-static val* varonce19;
-val* var20 /* : String */;
-char* var21 /* : NativeString */;
-val* var22 /* : String */;
-val* var23 /* : AExpr */;
-val* var25 /* : AExpr */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-val* var29 /* : nullable CallSite */;
-val* var31 /* : nullable AExpr */;
-val* var33 /* : nullable AExpr */;
-val* var34 /* : nullable AExpr */;
-val* var36 /* : nullable AExpr */;
-val* var37 /* : nullable MType */;
-var_v = p0;
 {
-{ /* Inline parser_nodes#AWithExpr#n_expr (self) on <self:AWithExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1955);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
-}
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t2); /* Direct call array$AbstractArray$push on <var_26:Array[MType]>*/
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+var27 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_26);
 }
-var_mtype = var3;
-if (var_mtype == NULL) {
-var4 = 1; /* is null */
+var_t = var27;
+if (var_t == NULL) {
+var28 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+var28 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+{ /* Inline kernel$Object$== (var_t,((val*)NULL)) on <var_t:nullable MType> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
-var9 = var_mtype == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
+{ /* Inline kernel$Object$is_same_instance (var_t,var_other) on <var_t:nullable MType(MType)> */
+var33 = var_t == var_other;
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
 }
-var4 = var5;
+var29 = var31;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
-if (var4){
-goto RET_LABEL;
-} else {
+var28 = var29;
 }
-if (likely(varonce!=NULL)) {
-var10 = varonce;
+if (var28){
+if (unlikely(varonce==NULL)) {
+var34 = NEW_core__NativeArray((int)5l, &type_core__NativeArray__core__String);
+if (likely(varonce35!=NULL)) {
+var36 = varonce35;
 } else {
-var11 = "start";
-var12 = core__flat___NativeString___to_s_full(var11, 5l, 5l);
-var10 = var12;
-varonce = var10;
-}
-{
-{ /* Inline parser_nodes#AWithExpr#n_expr (self) on <self:AWithExpr> */
-var15 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
-if (unlikely(var15 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1955);
-fatal_exit(1);
-}
-var13 = var15;
-RET_LABEL14:(void)0;
+var37 = "Type Error: ambiguous type `";
+var39 = (val*)(28l<<2|1);
+var40 = (val*)(28l<<2|1);
+var41 = (val*)((long)(0)<<2|3);
+var42 = (val*)((long)(0)<<2|3);
+var38 = core__flat___CString___to_s_unsafe(var37, var39, var40, var41, var42);
+var36 = var38;
+varonce35 = var36;
 }
+((struct instance_core__NativeArray*)var34)->values[0]=var36;
+if (likely(varonce43!=NULL)) {
+var44 = varonce43;
+} else {
+var45 = "` vs `";
+var47 = (val*)(6l<<2|1);
+var48 = (val*)(6l<<2|1);
+var49 = (val*)((long)(0)<<2|3);
+var50 = (val*)((long)(0)<<2|3);
+var46 = core__flat___CString___to_s_unsafe(var45, var47, var48, var49, var50);
+var44 = var46;
+varonce43 = var44;
 }
-/* <var13:AExpr> isa ASelfExpr */
-cltype = type_nitc__ASelfExpr.color;
-idtype = type_nitc__ASelfExpr.id;
-if(cltype >= var13->type->table_size) {
-var16 = 0;
+((struct instance_core__NativeArray*)var34)->values[2]=var44;
+if (likely(varonce51!=NULL)) {
+var52 = varonce51;
 } else {
-var16 = var13->type->type_table[cltype] == idtype;
+var53 = "`.";
+var55 = (val*)(2l<<2|1);
+var56 = (val*)(2l<<2|1);
+var57 = (val*)((long)(0)<<2|3);
+var58 = (val*)((long)(0)<<2|3);
+var54 = core__flat___CString___to_s_unsafe(var53, var55, var56, var57, var58);
+var52 = var54;
+varonce51 = var52;
 }
-{
-var17 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var10, var16);
+((struct instance_core__NativeArray*)var34)->values[4]=var52;
+} else {
+var34 = varonce;
+varonce = NULL;
 }
 {
-{ /* Inline typing#AWithExpr#method_start= (self,var17) on <self:AWithExpr> */
-self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val = var17; /* _method_start on <self:AWithExpr> */
-RET_LABEL18:(void)0;
-}
-}
-if (likely(varonce19!=NULL)) {
-var20 = varonce19;
-} else {
-var21 = "finish";
-var22 = core__flat___NativeString___to_s_full(var21, 6l, 6l);
-var20 = var22;
-varonce19 = var20;
+var59 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t1); /* to_s on <var_t1:nullable MType(MType)>*/
 }
+((struct instance_core__NativeArray*)var34)->values[1]=var59;
 {
-{ /* Inline parser_nodes#AWithExpr#n_expr (self) on <self:AWithExpr> */
-var25 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
-if (unlikely(var25 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1955);
-fatal_exit(1);
+var60 = ((val*(*)(val* self))(var_t2->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t2); /* to_s on <var_t2:nullable MType(MType)>*/
 }
-var23 = var25;
-RET_LABEL24:(void)0;
+((struct instance_core__NativeArray*)var34)->values[3]=var60;
+{
+var61 = ((val*(*)(val* self))(var34->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var34); /* native_to_s on <var34:NativeArray[String]>*/
 }
+varonce = var34;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var61); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-/* <var23:AExpr> isa ASelfExpr */
-cltype27 = type_nitc__ASelfExpr.color;
-idtype28 = type_nitc__ASelfExpr.id;
-if(cltype27 >= var23->type->table_size) {
-var26 = 0;
 } else {
-var26 = var23->type->type_table[cltype27] == idtype28;
 }
 {
-var29 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var20, var26);
+{ /* Inline typing$AExpr$mtype= (self,var_t) on <self:AIfexprExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t; /* _mtype on <self:AIfexprExpr> */
+RET_LABEL62:(void)0;
 }
-{
-{ /* Inline typing#AWithExpr#method_finish= (self,var29) on <self:AWithExpr> */
-self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val = var29; /* _method_finish on <self:AWithExpr> */
-RET_LABEL30:(void)0;
 }
+RET_LABEL:;
 }
+/* method typing$ADoExpr$accept_typing for (self: ADoExpr, TypeVisitor) */
+void nitc__typing___ADoExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable AExpr */;
+val* var2 /* : nullable AExpr */;
+val* var3 /* : nullable AExpr */;
+val* var5 /* : nullable AExpr */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#AWithExpr#n_block (self) on <self:AWithExpr> */
-var33 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
-var31 = var33;
-RET_LABEL32:(void)0;
+{ /* Inline parser_nodes$ADoExpr$n_block (self) on <self:ADoExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val; /* _n_block on <self:ADoExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var31); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-{ /* Inline parser_nodes#AWithExpr#n_block (self) on <self:AWithExpr> */
-var36 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
-var34 = var36;
-RET_LABEL35:(void)0;
-}
+{ /* Inline parser_nodes$ADoExpr$n_catch (self) on <self:ADoExpr> */
+var5 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_catch].val; /* _n_catch on <self:ADoExpr> */
+var3 = var5;
+RET_LABEL4:(void)0;
 }
-if (var34 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1308);
-fatal_exit(1);
-} else {
-var37 = ((val*(*)(val* self))(var34->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var34); /* mtype on <var34:nullable AExpr>*/
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var37) on <self:AWithExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var37; /* _mtype on <self:AWithExpr> */
-RET_LABEL38:(void)0;
-}
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var3); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AWithExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AWithExpr> */
-RET_LABEL39:(void)0;
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:ADoExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ADoExpr> */
+RET_LABEL6:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method typing#AAssertExpr#accept_typing for (self: AAssertExpr, TypeVisitor) */
-void nitc__typing___AAssertExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AWhileExpr$accept_typing for (self: AWhileExpr, TypeVisitor) */
+void nitc__typing___AWhileExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
 val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : nullable AExpr */;
-val* var6 /* : nullable AExpr */;
+val* var3 /* : AExpr */;
+val* var4 /* : nullable MType */;
+val* var5 /* : nullable AExpr */;
+val* var7 /* : nullable AExpr */;
 var_v = p0;
 {
-{ /* Inline parser_nodes#AAssertExpr#n_expr (self) on <self:AAssertExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
-if (unlikely(var2 == NULL)) {
+{ /* Inline typing$TypeVisitor$has_loop= (var_v,1) on <var_v:TypeVisitor> */
+var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
+RET_LABEL1:(void)0;
+}
+}
+{
+{ /* Inline parser_nodes$AWhileExpr$n_expr (self) on <self:AWhileExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1975);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1971);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var = var3;
+RET_LABEL2:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+var4 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
 {
-{ /* Inline parser_nodes#AAssertExpr#n_else (self) on <self:AAssertExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
-var4 = var6;
-RET_LABEL5:(void)0;
+{ /* Inline parser_nodes$AWhileExpr$n_block (self) on <self:AWhileExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
+var5 = var7;
+RET_LABEL6:(void)0;
 }
 }
 {
-nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var4); /* Direct call typing#TypeVisitor#visit_stmt on <var_v:TypeVisitor>*/
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var5); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:AAssertExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AAssertExpr> */
-RET_LABEL7:(void)0;
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AWhileExpr> */
+RET_LABEL8:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method typing#AOrExpr#accept_typing for (self: AOrExpr, TypeVisitor) */
-void nitc__typing___AOrExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$ALoopExpr$accept_typing for (self: ALoopExpr, TypeVisitor) */
+void nitc__typing___ALoopExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var8 /* : nullable MType */;
+val* var /* : nullable AExpr */;
+val* var3 /* : nullable AExpr */;
 var_v = p0;
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AOrExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
-fatal_exit(1);
-}
-var = var2;
+{ /* Inline typing$TypeVisitor$has_loop= (var_v,1) on <var_v:TypeVisitor> */
+var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
 RET_LABEL1:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+{ /* Inline parser_nodes$ALoopExpr$n_block (self) on <self:ALoopExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
+var = var3;
+RET_LABEL2:(void)0;
+}
 }
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr2 (self) on <self:AOrExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2056);
-fatal_exit(1);
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
+}
+{
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:ALoopExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ALoopExpr> */
+RET_LABEL4:(void)0;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
 }
+RET_LABEL:;
 }
+/* method typing$AForExpr$accept_typing for (self: AForExpr, TypeVisitor) */
+void nitc__typing___AForExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : ANodes[AForGroup] */;
+val* var3 /* : ANodes[AForGroup] */;
+val* var_ /* var : ANodes[AForGroup] */;
+val* var4 /* : Iterator[ANode] */;
+val* var_5 /* var : Iterator[AForGroup] */;
+short int var6 /* : Bool */;
+val* var7 /* : nullable Object */;
+val* var_g /* var g: AForGroup */;
+val* var8 /* : AExpr */;
+val* var10 /* : AExpr */;
+val* var11 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var15 /* : Bool */;
+short int var17 /* : Bool */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+val* var22 /* : nullable AExpr */;
+val* var24 /* : nullable AExpr */;
+val* var25 /* : nullable AExpr */;
+val* var27 /* : nullable AExpr */;
+val* var28 /* : nullable MType */;
+var_v = p0;
 {
-var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
+{ /* Inline typing$TypeVisitor$has_loop= (var_v,1) on <var_v:TypeVisitor> */
+var_v->attrs[COLOR_nitc__typing__TypeVisitor___has_loop].s = 1; /* _has_loop on <var_v:TypeVisitor> */
+RET_LABEL1:(void)0;
+}
 }
 {
-var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+{ /* Inline parser_nodes$AForExpr$n_groups (self) on <self:AForExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2001);
+fatal_exit(1);
 }
+var = var3;
+RET_LABEL2:(void)0;
+}
+}
+var_ = var;
 {
-{ /* Inline typing#AExpr#mtype= (self,var8) on <self:AOrExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AOrExpr> */
-RET_LABEL9:(void)0;
+var4 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
 }
+var_5 = var4;
+for(;;) {
+{
+var6 = ((short int(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_5); /* is_ok on <var_5:Iterator[AForGroup]>*/
 }
-RET_LABEL:;
+if (var6){
+} else {
+goto BREAK_label;
 }
-/* method typing#AImpliesExpr#accept_typing for (self: AImpliesExpr, TypeVisitor) */
-void nitc__typing___AImpliesExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var8 /* : nullable MType */;
-var_v = p0;
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AImpliesExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
-if (unlikely(var2 == NULL)) {
+var7 = ((val*(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_5); /* item on <var_5:Iterator[AForGroup]>*/
+}
+var_g = var7;
+{
+{ /* Inline parser_nodes$AForGroup$n_expr (var_g) on <var_g:AForGroup> */
+var10 = var_g->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <var_g:AForGroup> */
+if (unlikely(var10 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2024);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var8 = var10;
+RET_LABEL9:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+var11 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var8);
+}
+var_mtype = var11;
+if (var_mtype == NULL) {
+var12 = 1; /* is null */
+} else {
+var12 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr2 (self) on <self:AImpliesExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AImpliesExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2056);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var17 = var_mtype == var_other;
+var15 = var17;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
+}
+}
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
+}
+var12 = var13;
+}
+if (var12){
+goto RET_LABEL;
+} else {
+}
+{
+nitc__typing___AForGroup___do_type_iterator(var_g, var_v, var_mtype); /* Direct call typing$AForGroup$do_type_iterator on <var_g:AForGroup>*/
+}
+{
+{ /* Inline modelbuilder_base$ANode$is_broken (var_g) on <var_g:AForGroup> */
+var20 = var_g->attrs[COLOR_nitc__modelbuilder_base__ANode___is_broken].s; /* _is_broken on <var_g:AForGroup> */
+var18 = var20;
+RET_LABEL19:(void)0;
+}
+}
+if (var18){
+{
+{ /* Inline modelbuilder_base$ANode$is_broken= (self,1) on <self:AForExpr> */
+self->attrs[COLOR_nitc__modelbuilder_base__ANode___is_broken].s = 1; /* _is_broken on <self:AForExpr> */
+RET_LABEL21:(void)0;
+}
+}
+} else {
+}
+{
+((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_5); /* next on <var_5:Iterator[AForGroup]>*/
 }
-var4 = var6;
-RET_LABEL5:(void)0;
 }
+BREAK_label: (void)0;
+{
+((void(*)(val* self))((((long)var_5&3)?class_info[((long)var_5&3)]:var_5->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_5); /* finish on <var_5:Iterator[AForGroup]>*/
 }
 {
-var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
+{ /* Inline parser_nodes$AForExpr$n_block (self) on <self:AForExpr> */
+var24 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+var22 = var24;
+RET_LABEL23:(void)0;
+}
 }
 {
-var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var22); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var8) on <self:AImpliesExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AImpliesExpr> */
-RET_LABEL9:(void)0;
+{ /* Inline parser_nodes$AForExpr$n_block (self) on <self:AForExpr> */
+var27 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+var25 = var27;
+RET_LABEL26:(void)0;
 }
 }
-RET_LABEL:;
+if (var25 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method typing#AAndExpr#accept_typing for (self: AAndExpr, TypeVisitor) */
-void nitc__typing___AAndExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var8 /* : nullable MType */;
-var_v = p0;
-{
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AAndExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1189);
 fatal_exit(1);
+} else {
+var28 = ((val*(*)(val* self))(var25->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var25); /* mtype on <var25:nullable AExpr>*/
 }
-var = var2;
-RET_LABEL1:(void)0;
+{
+{ /* Inline typing$AExpr$mtype= (self,var28) on <self:AForExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var28; /* _mtype on <self:AForExpr> */
+RET_LABEL29:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AForExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AForExpr> */
+RET_LABEL30:(void)0;
 }
-{
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr2 (self) on <self:AAndExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AAndExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2056);
-fatal_exit(1);
 }
-var4 = var6;
-RET_LABEL5:(void)0;
+RET_LABEL:;
 }
+/* method typing$AForGroup$coltype= for (self: AForGroup, nullable MClassType) */
+void nitc__typing___AForGroup___coltype_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___coltype].val = p0; /* _coltype on <self:AForGroup> */
+RET_LABEL:;
 }
-{
-var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
+/* method typing$AForGroup$method_iterator for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_iterator(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val; /* _method_iterator on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+/* method typing$AForGroup$method_iterator= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_iterator_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val = p0; /* _method_iterator on <self:AForGroup> */
+RET_LABEL:;
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var8) on <self:AAndExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AAndExpr> */
-RET_LABEL9:(void)0;
+/* method typing$AForGroup$method_is_ok for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_is_ok(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val; /* _method_is_ok on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AForGroup$method_is_ok= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_is_ok_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val = p0; /* _method_is_ok on <self:AForGroup> */
+RET_LABEL:;
 }
+/* method typing$AForGroup$method_item for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_item(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_item].val; /* _method_item on <self:AForGroup> */
+var = var1;
 RET_LABEL:;
+return var;
 }
-/* method typing#ANotExpr#accept_typing for (self: ANotExpr, TypeVisitor) */
-void nitc__typing___ANotExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : nullable MType */;
-var_v = p0;
-{
-{ /* Inline parser_nodes#ANotExpr#n_expr (self) on <self:ANotExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2090);
-fatal_exit(1);
+/* method typing$AForGroup$method_item= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_item_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_item].val = p0; /* _method_item on <self:AForGroup> */
+RET_LABEL:;
 }
-var = var2;
-RET_LABEL1:(void)0;
+/* method typing$AForGroup$method_next for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_next(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_next].val; /* _method_next on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AForGroup$method_next= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_next_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_next].val = p0; /* _method_next on <self:AForGroup> */
+RET_LABEL:;
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
+/* method typing$AForGroup$method_key for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_key(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_key].val; /* _method_key on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-var4 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+/* method typing$AForGroup$method_key= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_key_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_key].val = p0; /* _method_key on <self:AForGroup> */
+RET_LABEL:;
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var4) on <self:ANotExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var4; /* _mtype on <self:ANotExpr> */
-RET_LABEL5:(void)0;
+/* method typing$AForGroup$method_finish for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_finish(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val; /* _method_finish on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method typing$AForGroup$method_finish= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_finish_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val = p0; /* _method_finish on <self:AForGroup> */
+RET_LABEL:;
 }
+/* method typing$AForGroup$method_lt for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_lt(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val; /* _method_lt on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AForGroup$method_lt= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_lt_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = p0; /* _method_lt on <self:AForGroup> */
 RET_LABEL:;
 }
-/* method typing#AOrElseExpr#accept_typing for (self: AOrElseExpr, TypeVisitor) */
-void nitc__typing___AOrElseExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AForGroup$method_successor for (self: AForGroup): nullable CallSite */
+val* nitc__typing___AForGroup___method_successor(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val; /* _method_successor on <self:AForGroup> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method typing$AForGroup$method_successor= for (self: AForGroup, nullable CallSite) */
+void nitc__typing___AForGroup___method_successor_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val = p0; /* _method_successor on <self:AForGroup> */
+RET_LABEL:;
+}
+/* method typing$AForGroup$do_type_iterator for (self: AForGroup, TypeVisitor, MType) */
+void nitc__typing___AForGroup___do_type_iterator(val* self, val* p0, val* p1) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_t1 /* var t1: nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var_t2 /* var t2: nullable MType */;
-short int var8 /* : Bool */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var12 /* : Bool */;
-short int var14 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var21 /* : Bool */;
+val* var_mtype /* var mtype: MType */;
+short int var /* : Bool */;
 int cltype;
 int idtype;
-short int var23 /* : Bool */;
-val* var24 /* : MType */;
-val* var25 /* : Array[MType] */;
-val* var_26 /* var : Array[MType] */;
-val* var27 /* : nullable MType */;
-val* var_t /* var t: nullable MType */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
-short int var31 /* : Bool */;
-short int var33 /* : Bool */;
 static val* varonce;
-val* var34 /* : String */;
-char* var35 /* : NativeString */;
-val* var36 /* : String */;
-val* var37 /* : nullable MClass */;
-val* var_c /* var c: nullable MClass */;
+val* var1 /* : String */;
+char* var2 /* : CString */;
+val* var3 /* : String */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable Bool */;
+static val* varonce8;
+val* var9 /* : String */;
+char* var10 /* : CString */;
+val* var11 /* : String */;
+val* var12 /* : nullable Int */;
+val* var13 /* : nullable Int */;
+val* var14 /* : nullable Bool */;
+val* var15 /* : nullable Bool */;
+val* var16 /* : nullable MClass */;
+val* var_objcla /* var objcla: nullable MClass */;
+short int var17 /* : Bool */;
+short int var18 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
+static val* varonce23;
+val* var24 /* : String */;
+char* var25 /* : CString */;
+val* var26 /* : String */;
+val* var27 /* : nullable Int */;
+val* var28 /* : nullable Int */;
+val* var29 /* : nullable Bool */;
+val* var30 /* : nullable Bool */;
+val* var31 /* : AExpr */;
+val* var33 /* : AExpr */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+val* var37 /* : nullable CallSite */;
+val* var_itdef /* var itdef: nullable CallSite */;
 short int var38 /* : Bool */;
 short int var39 /* : Bool */;
 short int var41 /* : Bool */;
 short int var43 /* : Bool */;
-val* var44 /* : MClassType */;
-val* var46 /* : MClassType */;
-short int var47 /* : Bool */;
-val* var48 /* : MType */;
+val* var45 /* : NativeArray[String] */;
+static val* varonce44;
+static val* varonce46;
+val* var47 /* : String */;
+char* var48 /* : CString */;
+val* var49 /* : String */;
+val* var50 /* : nullable Int */;
+val* var51 /* : nullable Int */;
+val* var52 /* : nullable Bool */;
+val* var53 /* : nullable Bool */;
+static val* varonce54;
+val* var55 /* : String */;
+char* var56 /* : CString */;
+val* var57 /* : String */;
+val* var58 /* : nullable Int */;
+val* var59 /* : nullable Int */;
+val* var60 /* : nullable Bool */;
+val* var61 /* : nullable Bool */;
+val* var62 /* : String */;
+val* var63 /* : String */;
+val* var65 /* : MSignature */;
+val* var67 /* : MSignature */;
+val* var68 /* : nullable MType */;
+val* var70 /* : nullable MType */;
+val* var_ittype /* var ittype: nullable MType */;
+short int var71 /* : Bool */;
+short int var72 /* : Bool */;
+short int var74 /* : Bool */;
+short int var76 /* : Bool */;
+static val* varonce77;
+val* var78 /* : String */;
+char* var79 /* : CString */;
+val* var80 /* : String */;
+val* var81 /* : nullable Int */;
+val* var82 /* : nullable Int */;
+val* var83 /* : nullable Bool */;
+val* var84 /* : nullable Bool */;
+static val* varonce85;
+val* var86 /* : String */;
+char* var87 /* : CString */;
+val* var88 /* : String */;
+val* var89 /* : nullable Int */;
+val* var90 /* : nullable Int */;
+val* var91 /* : nullable Bool */;
+val* var92 /* : nullable Bool */;
+val* var93 /* : nullable MClass */;
+val* var_colit_cla /* var colit_cla: nullable MClass */;
+static val* varonce94;
+val* var95 /* : String */;
+char* var96 /* : CString */;
+val* var97 /* : String */;
+val* var98 /* : nullable Int */;
+val* var99 /* : nullable Int */;
+val* var100 /* : nullable Bool */;
+val* var101 /* : nullable Bool */;
+val* var102 /* : nullable MClass */;
+val* var_mapit_cla /* var mapit_cla: nullable MClass */;
+short int var_is_col /* var is_col: Bool */;
+short int var_is_map /* var is_map: Bool */;
+short int var103 /* : Bool */;
+short int var104 /* : Bool */;
+short int var105 /* : Bool */;
+val* var_other107 /* var other: nullable Object */;
+short int var108 /* : Bool */;
+short int var109 /* : Bool */;
+short int var_ /* var : Bool */;
+val* var110 /* : Array[MType] */;
+val* var_111 /* var : Array[MType] */;
+val* var112 /* : MClassType */;
+val* var114 /* : MClassType */;
+val* var115 /* : MType */;
+val* var116 /* : MClassType */;
+short int var117 /* : Bool */;
+val* var118 /* : MModule */;
+val* var120 /* : MModule */;
+val* var121 /* : nullable MClassType */;
+val* var123 /* : nullable MClassType */;
+val* var124 /* : MClassType */;
+val* var_coltype /* var coltype: MClassType */;
+val* var125 /* : nullable Array[Variable] */;
+val* var127 /* : nullable Array[Variable] */;
+val* var_variables /* var variables: nullable Array[Variable] */;
+long var128 /* : Int */;
+long var130 /* : Int */;
+short int var131 /* : Bool */;
+short int var133 /* : Bool */;
+short int var134 /* : Bool */;
+static val* varonce135;
+val* var136 /* : String */;
+char* var137 /* : CString */;
+val* var138 /* : String */;
+val* var139 /* : nullable Int */;
+val* var140 /* : nullable Int */;
+val* var141 /* : nullable Bool */;
+val* var142 /* : nullable Bool */;
+val* var143 /* : nullable Object */;
+val* var144 /* : Array[MType] */;
+val* var145 /* : nullable Object */;
+short int var147 /* : Bool */;
+short int var148 /* : Bool */;
+short int var149 /* : Bool */;
+short int var151 /* : Bool */;
+short int var152 /* : Bool */;
+short int var_153 /* var : Bool */;
+val* var154 /* : Array[MType] */;
+val* var_155 /* var : Array[MType] */;
+val* var156 /* : MClassType */;
+val* var158 /* : MClassType */;
+val* var159 /* : MType */;
+val* var160 /* : MClassType */;
+val* var162 /* : MClassType */;
+val* var163 /* : MType */;
+val* var164 /* : MClassType */;
+short int var165 /* : Bool */;
+val* var166 /* : MModule */;
+val* var168 /* : MModule */;
+val* var169 /* : nullable MClassType */;
+val* var171 /* : nullable MClassType */;
+val* var172 /* : MClassType */;
+val* var_coltype173 /* var coltype: MClassType */;
+val* var174 /* : nullable Array[Variable] */;
+val* var176 /* : nullable Array[Variable] */;
+val* var_variables177 /* var variables: nullable Array[Variable] */;
+long var178 /* : Int */;
+long var180 /* : Int */;
+short int var181 /* : Bool */;
+short int var183 /* : Bool */;
+short int var184 /* : Bool */;
+static val* varonce185;
+val* var186 /* : String */;
+char* var187 /* : CString */;
+val* var188 /* : String */;
+val* var189 /* : nullable Int */;
+val* var190 /* : nullable Int */;
+val* var191 /* : nullable Bool */;
+val* var192 /* : nullable Bool */;
+val* var193 /* : nullable Object */;
+val* var194 /* : Array[MType] */;
+val* var195 /* : nullable Object */;
+val* var197 /* : nullable Object */;
+val* var198 /* : Array[MType] */;
+val* var199 /* : nullable Object */;
+short int var201 /* : Bool */;
+short int var202 /* : Bool */;
+short int var_203 /* var : Bool */;
+short int var204 /* : Bool */;
+static val* varonce205;
+val* var206 /* : String */;
+char* var207 /* : CString */;
+val* var208 /* : String */;
+val* var209 /* : nullable Int */;
+val* var210 /* : nullable Int */;
+val* var211 /* : nullable Bool */;
+val* var212 /* : nullable Bool */;
+short int var213 /* : Bool */;
+val* var214 /* : MType */;
+val* var215 /* : MType */;
+short int var216 /* : Bool */;
+int cltype217;
+int idtype218;
+const char* var_class_name;
+static val* varonce220;
+val* var221 /* : String */;
+char* var222 /* : CString */;
+val* var223 /* : String */;
+val* var224 /* : nullable Int */;
+val* var225 /* : nullable Int */;
+val* var226 /* : nullable Bool */;
+val* var227 /* : nullable Bool */;
+val* var228 /* : nullable CallSite */;
+val* var_ikdef /* var ikdef: nullable CallSite */;
+short int var229 /* : Bool */;
+short int var230 /* : Bool */;
+short int var232 /* : Bool */;
+short int var234 /* : Bool */;
+val* var236 /* : NativeArray[String] */;
+static val* varonce235;
+static val* varonce237;
+val* var238 /* : String */;
+char* var239 /* : CString */;
+val* var240 /* : String */;
+val* var241 /* : nullable Int */;
+val* var242 /* : nullable Int */;
+val* var243 /* : nullable Bool */;
+val* var244 /* : nullable Bool */;
+static val* varonce245;
+val* var246 /* : String */;
+char* var247 /* : CString */;
+val* var248 /* : String */;
+val* var249 /* : nullable Int */;
+val* var250 /* : nullable Int */;
+val* var251 /* : nullable Bool */;
+val* var252 /* : nullable Bool */;
+val* var253 /* : String */;
+val* var254 /* : String */;
+static val* varonce256;
+val* var257 /* : String */;
+char* var258 /* : CString */;
+val* var259 /* : String */;
+val* var260 /* : nullable Int */;
+val* var261 /* : nullable Int */;
+val* var262 /* : nullable Bool */;
+val* var263 /* : nullable Bool */;
+val* var264 /* : nullable CallSite */;
+val* var_itemdef /* var itemdef: nullable CallSite */;
+short int var265 /* : Bool */;
+short int var266 /* : Bool */;
+short int var268 /* : Bool */;
+short int var270 /* : Bool */;
+val* var272 /* : NativeArray[String] */;
+static val* varonce271;
+static val* varonce273;
+val* var274 /* : String */;
+char* var275 /* : CString */;
+val* var276 /* : String */;
+val* var277 /* : nullable Int */;
+val* var278 /* : nullable Int */;
+val* var279 /* : nullable Bool */;
+val* var280 /* : nullable Bool */;
+static val* varonce281;
+val* var282 /* : String */;
+char* var283 /* : CString */;
+val* var284 /* : String */;
+val* var285 /* : nullable Int */;
+val* var286 /* : nullable Int */;
+val* var287 /* : nullable Bool */;
+val* var288 /* : nullable Bool */;
+val* var289 /* : String */;
+val* var290 /* : String */;
+static val* varonce292;
+val* var293 /* : String */;
+char* var294 /* : CString */;
+val* var295 /* : String */;
+val* var296 /* : nullable Int */;
+val* var297 /* : nullable Int */;
+val* var298 /* : nullable Bool */;
+val* var299 /* : nullable Bool */;
+val* var300 /* : nullable CallSite */;
+val* var_nextdef /* var nextdef: nullable CallSite */;
+short int var301 /* : Bool */;
+short int var302 /* : Bool */;
+short int var304 /* : Bool */;
+short int var306 /* : Bool */;
+val* var308 /* : NativeArray[String] */;
+static val* varonce307;
+static val* varonce309;
+val* var310 /* : String */;
+char* var311 /* : CString */;
+val* var312 /* : String */;
+val* var313 /* : nullable Int */;
+val* var314 /* : nullable Int */;
+val* var315 /* : nullable Bool */;
+val* var316 /* : nullable Bool */;
+static val* varonce317;
+val* var318 /* : String */;
+char* var319 /* : CString */;
+val* var320 /* : String */;
+val* var321 /* : nullable Int */;
+val* var322 /* : nullable Int */;
+val* var323 /* : nullable Bool */;
+val* var324 /* : nullable Bool */;
+val* var325 /* : String */;
+val* var326 /* : String */;
+static val* varonce328;
+val* var329 /* : String */;
+char* var330 /* : CString */;
+val* var331 /* : String */;
+val* var332 /* : nullable Int */;
+val* var333 /* : nullable Int */;
+val* var334 /* : nullable Bool */;
+val* var335 /* : nullable Bool */;
+val* var336 /* : nullable CallSite */;
+static val* varonce338;
+val* var339 /* : String */;
+char* var340 /* : CString */;
+val* var341 /* : String */;
+val* var342 /* : nullable Int */;
+val* var343 /* : nullable Int */;
+val* var344 /* : nullable Bool */;
+val* var345 /* : nullable Bool */;
+val* var346 /* : nullable CallSite */;
+val* var_keydef /* var keydef: nullable CallSite */;
+short int var347 /* : Bool */;
+short int var348 /* : Bool */;
+short int var350 /* : Bool */;
+short int var352 /* : Bool */;
+val* var354 /* : NativeArray[String] */;
+static val* varonce353;
+static val* varonce355;
+val* var356 /* : String */;
+char* var357 /* : CString */;
+val* var358 /* : String */;
+val* var359 /* : nullable Int */;
+val* var360 /* : nullable Int */;
+val* var361 /* : nullable Bool */;
+val* var362 /* : nullable Bool */;
+static val* varonce363;
+val* var364 /* : String */;
+char* var365 /* : CString */;
+val* var366 /* : String */;
+val* var367 /* : nullable Int */;
+val* var368 /* : nullable Int */;
+val* var369 /* : nullable Bool */;
+val* var370 /* : nullable Bool */;
+val* var371 /* : String */;
+val* var372 /* : String */;
+short int var374 /* : Bool */;
+val* var375 /* : nullable Array[Variable] */;
+val* var377 /* : nullable Array[Variable] */;
+long var378 /* : Int */;
+long var380 /* : Int */;
+short int var381 /* : Bool */;
+short int var383 /* : Bool */;
+short int var_384 /* var : Bool */;
+val* var385 /* : AExpr */;
+val* var387 /* : AExpr */;
+short int var388 /* : Bool */;
+int cltype389;
+int idtype390;
+val* var391 /* : nullable Array[Variable] */;
+val* var393 /* : nullable Array[Variable] */;
+val* var394 /* : nullable Object */;
+val* var_variable /* var variable: Variable */;
+val* var395 /* : nullable MType */;
+val* var397 /* : nullable MType */;
+val* var_vtype /* var vtype: MType */;
+val* var398 /* : AExpr */;
+val* var400 /* : AExpr */;
+short int var401 /* : Bool */;
+int cltype402;
+int idtype403;
+static val* varonce404;
+val* var405 /* : String */;
+char* var406 /* : CString */;
+val* var407 /* : String */;
+val* var408 /* : nullable Int */;
+val* var409 /* : nullable Int */;
+val* var410 /* : nullable Bool */;
+val* var411 /* : nullable Bool */;
+val* var412 /* : nullable CallSite */;
+static val* varonce414;
+val* var415 /* : String */;
+char* var416 /* : CString */;
+val* var417 /* : String */;
+val* var418 /* : nullable Int */;
+val* var419 /* : nullable Int */;
+val* var420 /* : nullable Bool */;
+val* var421 /* : nullable Bool */;
+val* var422 /* : nullable CallSite */;
+static val* varonce424;
+val* var425 /* : String */;
+char* var426 /* : CString */;
+val* var427 /* : String */;
+val* var428 /* : nullable Int */;
+val* var429 /* : nullable Int */;
+val* var430 /* : nullable Bool */;
+val* var431 /* : nullable Bool */;
+val* var432 /* : nullable CallSite */;
 var_v = p0;
-{
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AOrElseExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
-}
+var_mtype = p1;
+/* <var_mtype:MType> isa MNullType */
+cltype = type_nitc__MNullType.color;
+idtype = type_nitc__MNullType.id;
+if(cltype >= var_mtype->type->table_size) {
+var = 0;
+} else {
+var = var_mtype->type->type_table[cltype] == idtype;
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+if (var){
+if (likely(varonce!=NULL)) {
+var1 = varonce;
+} else {
+var2 = "Type Error: `for` cannot iterate over `null`.";
+var4 = (val*)(45l<<2|1);
+var5 = (val*)(45l<<2|1);
+var6 = (val*)((long)(0)<<2|3);
+var7 = (val*)((long)(0)<<2|3);
+var3 = core__flat___CString___to_s_unsafe(var2, var4, var5, var6, var7);
+var1 = var3;
+varonce = var1;
 }
-var_t1 = var3;
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr2 (self) on <self:AOrElseExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2056);
-fatal_exit(1);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var1); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var4 = var6;
-RET_LABEL5:(void)0;
+goto RET_LABEL;
+} else {
 }
+if (likely(varonce8!=NULL)) {
+var9 = varonce8;
+} else {
+var10 = "Object";
+var12 = (val*)(6l<<2|1);
+var13 = (val*)(6l<<2|1);
+var14 = (val*)((long)(0)<<2|3);
+var15 = (val*)((long)(0)<<2|3);
+var11 = core__flat___CString___to_s_unsafe(var10, var12, var13, var14, var15);
+var9 = var11;
+varonce8 = var9;
 }
 {
-var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var4);
+var16 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var9);
 }
-var_t2 = var7;
-if (var_t1 == NULL) {
-var9 = 1; /* is null */
+var_objcla = var16;
+if (var_objcla == NULL) {
+var17 = 1; /* is null */
 } else {
-var9 = 0; /* arg is null but recv is not */
+var17 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+{ /* Inline kernel$Object$== (var_objcla,((val*)NULL)) on <var_objcla:nullable MClass> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
-var14 = var_t1 == var_other;
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
-}
-}
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-var9 = var10;
+{ /* Inline kernel$Object$is_same_instance (var_objcla,var_other) on <var_objcla:nullable MClass(MClass)> */
+var22 = var_objcla == var_other;
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
-var_ = var9;
-if (var9){
-var8 = var_;
-} else {
-if (var_t2 == NULL) {
-var15 = 1; /* is null */
-} else {
-var15 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
-var20 = var_t2 == var_other;
 var18 = var20;
 goto RET_LABEL19;
 RET_LABEL19:(void)0;
 }
+var17 = var18;
 }
-var16 = var18;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
-}
-var15 = var16;
-}
-var8 = var15;
-}
-if (var8){
-goto RET_LABEL;
-} else {
-}
-/* <var_t1:nullable MType(MType)> isa MNullType */
-cltype = type_nitc__MNullType.color;
-idtype = type_nitc__MNullType.id;
-if(cltype >= var_t1->type->table_size) {
-var21 = 0;
-} else {
-var21 = var_t1->type->type_table[cltype] == idtype;
-}
-if (var21){
-{
-{ /* Inline typing#AExpr#mtype= (self,var_t2) on <self:AOrElseExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t2; /* _mtype on <self:AOrElseExpr> */
-RET_LABEL22:(void)0;
-}
-}
+if (var17){
 goto RET_LABEL;
 } else {
-{
-var23 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_t1);
-}
-if (var23){
-{
-var24 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_nitc__model__MType__as_notnull]))(var_t1); /* as_notnull on <var_t1:nullable MType(MType)>*/
 }
-var_t1 = var24;
+if (likely(varonce23!=NULL)) {
+var24 = varonce23;
 } else {
-}
-}
-var25 = NEW_core__Array(&type_core__Array__nitc__MType);
-{
-core___core__Array___with_capacity(var25, 2l); /* Direct call array#Array#with_capacity on <var25:Array[MType]>*/
-}
-var_26 = var25;
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t1); /* Direct call array#AbstractArray#push on <var_26:Array[MType]>*/
-}
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t2); /* Direct call array#AbstractArray#push on <var_26:Array[MType]>*/
+var25 = "iterator";
+var27 = (val*)(8l<<2|1);
+var28 = (val*)(8l<<2|1);
+var29 = (val*)((long)(0)<<2|3);
+var30 = (val*)((long)(0)<<2|3);
+var26 = core__flat___CString___to_s_unsafe(var25, var27, var28, var29, var30);
+var24 = var26;
+varonce23 = var24;
 }
 {
-var27 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_26);
+{ /* Inline parser_nodes$AForGroup$n_expr (self) on <self:AForGroup> */
+var33 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
+if (unlikely(var33 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_t = var27;
-if (var_t == NULL) {
-var28 = 1; /* is null */
-} else {
-var28 = 0; /* arg is null but recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2024);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_t,((val*)NULL)) on <var_t:nullable MType> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_t,var_other) on <var_t:nullable MType(MType)> */
-var33 = var_t == var_other;
 var31 = var33;
-goto RET_LABEL32;
 RET_LABEL32:(void)0;
 }
 }
-var29 = var31;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
-}
-var28 = var29;
-}
-if (var28){
-if (likely(varonce!=NULL)) {
-var34 = varonce;
+/* <var31:AExpr> isa ASelfExpr */
+cltype35 = type_nitc__ASelfExpr.color;
+idtype36 = type_nitc__ASelfExpr.id;
+if(cltype35 >= var31->type->table_size) {
+var34 = 0;
 } else {
-var35 = "Object";
-var36 = core__flat___NativeString___to_s_full(var35, 6l, 6l);
-var34 = var36;
-varonce = var34;
+var34 = var31->type->type_table[cltype35] == idtype36;
 }
 {
-var37 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var34);
+var37 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var24, var34);
 }
-var_c = var37;
-if (var_c == NULL) {
+var_itdef = var37;
+if (var_itdef == NULL) {
 var38 = 1; /* is null */
 } else {
 var38 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_c,((val*)NULL)) on <var_c:nullable MClass> */
+{ /* Inline kernel$Object$== (var_itdef,((val*)NULL)) on <var_itdef:nullable CallSite> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_c,var_other) on <var_c:nullable MClass(MClass)> */
-var43 = var_c == var_other;
+{ /* Inline kernel$Object$is_same_instance (var_itdef,var_other) on <var_itdef:nullable CallSite(CallSite)> */
+var43 = var_itdef == var_other;
 var41 = var43;
 goto RET_LABEL42;
 RET_LABEL42:(void)0;
@@ -3796,1863 +3732,2012 @@ RET_LABEL40:(void)0;
 var38 = var39;
 }
 if (var38){
-goto RET_LABEL;
+if (unlikely(varonce44==NULL)) {
+var45 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce46!=NULL)) {
+var47 = varonce46;
 } else {
+var48 = "Type Error: `for` expects a type providing an `iterator` method, got `";
+var50 = (val*)(70l<<2|1);
+var51 = (val*)(70l<<2|1);
+var52 = (val*)((long)(0)<<2|3);
+var53 = (val*)((long)(0)<<2|3);
+var49 = core__flat___CString___to_s_unsafe(var48, var50, var51, var52, var53);
+var47 = var49;
+varonce46 = var47;
 }
-{
-{ /* Inline model#MClass#mclass_type (var_c) on <var_c:nullable MClass(MClass)> */
-var46 = var_c->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_c:nullable MClass(MClass)> */
-if (unlikely(var46 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
-}
-var44 = var46;
-RET_LABEL45:(void)0;
+((struct instance_core__NativeArray*)var45)->values[0]=var47;
+if (likely(varonce54!=NULL)) {
+var55 = varonce54;
+} else {
+var56 = "`.";
+var58 = (val*)(2l<<2|1);
+var59 = (val*)(2l<<2|1);
+var60 = (val*)((long)(0)<<2|3);
+var61 = (val*)((long)(0)<<2|3);
+var57 = core__flat___CString___to_s_unsafe(var56, var58, var59, var60, var61);
+var55 = var57;
+varonce54 = var55;
 }
+((struct instance_core__NativeArray*)var45)->values[2]=var55;
+} else {
+var45 = varonce44;
+varonce44 = NULL;
 }
-var_t = var44;
 {
-var47 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_t2);
+var62 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_mtype); /* to_s on <var_mtype:MType>*/
 }
-if (var47){
+((struct instance_core__NativeArray*)var45)->values[1]=var62;
 {
-var48 = nitc___nitc__MType___as_nullable(var_t);
+var63 = ((val*(*)(val* self))(var45->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var45); /* native_to_s on <var45:NativeArray[String]>*/
 }
-var_t = var48;
-} else {
+varonce44 = var45;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var63); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var_t) on <self:AOrElseExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t; /* _mtype on <self:AOrElseExpr> */
-RET_LABEL49:(void)0;
-}
+{ /* Inline typing$AForGroup$method_iterator= (self,var_itdef) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_iterator].val = var_itdef; /* _method_iterator on <self:AForGroup> */
+RET_LABEL64:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AOrElseExpr#accept_post_typing for (self: AOrElseExpr, TypeVisitor) */
-void nitc__typing___AOrElseExpr___ANode__accept_post_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_t1 /* var t1: nullable MType */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : AExpr */;
-val* var12 /* : AExpr */;
-short int var13 /* : Bool */;
-var_v = p0;
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AOrElseExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
+{ /* Inline typing$CallSite$msignature (var_itdef) on <var_itdef:nullable CallSite(CallSite)> */
+var67 = var_itdef->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_itdef:nullable CallSite(CallSite)> */
+if (unlikely(var67 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 663);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var65 = var67;
+RET_LABEL66:(void)0;
 }
 }
 {
-var3 = ((val*(*)(val* self))(var->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var); /* mtype on <var:AExpr>*/
+{ /* Inline model$MSignature$return_mtype (var65) on <var65:MSignature> */
+var70 = var65->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var65:MSignature> */
+var68 = var70;
+RET_LABEL69:(void)0;
 }
-var_t1 = var3;
-if (var_t1 == NULL) {
-var4 = 1; /* is null */
+}
+var_ittype = var68;
+if (var_ittype == NULL) {
+var71 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+var71 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+{ /* Inline kernel$Object$== (var_ittype,((val*)NULL)) on <var_ittype:nullable MType> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
-var9 = var_t1 == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_ittype,var_other) on <var_ittype:nullable MType(MType)> */
+var76 = var_ittype == var_other;
+var74 = var76;
+goto RET_LABEL75;
+RET_LABEL75:(void)0;
 }
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var72 = var74;
+goto RET_LABEL73;
+RET_LABEL73:(void)0;
 }
-var4 = var5;
+var71 = var72;
 }
-if (var4){
-goto RET_LABEL;
+if (var71){
+if (likely(varonce77!=NULL)) {
+var78 = varonce77;
 } else {
+var79 = "Type Error: `for` expects the method `iterator` to return an `Iterator` or `MapIterator` type.";
+var81 = (val*)(94l<<2|1);
+var82 = (val*)(94l<<2|1);
+var83 = (val*)((long)(0)<<2|3);
+var84 = (val*)((long)(0)<<2|3);
+var80 = core__flat___CString___to_s_unsafe(var79, var81, var82, var83, var84);
+var78 = var80;
+varonce77 = var78;
+}
 {
-{ /* Inline parser_nodes#ABinBoolExpr#n_expr (self) on <self:AOrElseExpr> */
-var12 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2050);
-fatal_exit(1);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var78); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+goto RET_LABEL;
+} else {
 }
+if (likely(varonce85!=NULL)) {
+var86 = varonce85;
+} else {
+var87 = "Iterator";
+var89 = (val*)(8l<<2|1);
+var90 = (val*)(8l<<2|1);
+var91 = (val*)((long)(0)<<2|3);
+var92 = (val*)((long)(0)<<2|3);
+var88 = core__flat___CString___to_s_unsafe(var87, var89, var90, var91, var92);
+var86 = var88;
+varonce85 = var86;
 }
 {
-var13 = nitc__typing___nitc__typing__TypeVisitor___check_can_be_null(var_v, var10, var_t1);
+var93 = nitc__typing___nitc__typing__TypeVisitor___try_get_mclass(var_v, self, var86);
 }
+var_colit_cla = var93;
+if (likely(varonce94!=NULL)) {
+var95 = varonce94;
+} else {
+var96 = "MapIterator";
+var98 = (val*)(11l<<2|1);
+var99 = (val*)(11l<<2|1);
+var100 = (val*)((long)(0)<<2|3);
+var101 = (val*)((long)(0)<<2|3);
+var97 = core__flat___CString___to_s_unsafe(var96, var98, var99, var100, var101);
+var95 = var97;
+varonce94 = var95;
 }
-RET_LABEL:;
-}
-/* method typing#ATrueExpr#accept_typing for (self: ATrueExpr, TypeVisitor) */
-void nitc__typing___ATrueExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable MType */;
-var_v = p0;
 {
-var = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+var102 = nitc__typing___nitc__typing__TypeVisitor___try_get_mclass(var_v, self, var95);
+}
+var_mapit_cla = var102;
+var_is_col = 0;
+var_is_map = 0;
+if (var_colit_cla == NULL) {
+var104 = 0; /* is null */
+} else {
+var104 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_colit_cla,((val*)NULL)) on <var_colit_cla:nullable MClass> */
+var_other107 = ((val*)NULL);
 {
-{ /* Inline typing#AExpr#mtype= (self,var) on <self:ATrueExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var; /* _mtype on <self:ATrueExpr> */
-RET_LABEL1:(void)0;
+var108 = ((short int(*)(val* self, val* p0))(var_colit_cla->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_colit_cla, var_other107); /* == on <var_colit_cla:nullable MClass(MClass)>*/
 }
+var109 = !var108;
+var105 = var109;
+goto RET_LABEL106;
+RET_LABEL106:(void)0;
 }
-RET_LABEL:;
+var104 = var105;
 }
-/* method typing#AFalseExpr#accept_typing for (self: AFalseExpr, TypeVisitor) */
-void nitc__typing___AFalseExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable MType */;
-var_v = p0;
+var_ = var104;
+if (var104){
+var110 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-var = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+core___core__Array___with_capacity(var110, 1l); /* Direct call array$Array$with_capacity on <var110:Array[MType]>*/
 }
+var_111 = var110;
 {
-{ /* Inline typing#AExpr#mtype= (self,var) on <self:AFalseExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var; /* _mtype on <self:AFalseExpr> */
-RET_LABEL1:(void)0;
+{ /* Inline model$MClass$mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
+var114 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
+if (unlikely(var114 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
+}
+var112 = var114;
+RET_LABEL113:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AIntegerExpr#accept_typing for (self: AIntegerExpr, TypeVisitor) */
-void nitc__typing___AIntegerExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var_mclass /* var mclass: nullable MClass */;
-val* var /* : nullable Numeric */;
-val* var2 /* : nullable Numeric */;
-short int var3 /* : Bool */;
-int cltype;
-int idtype;
-static val* varonce;
-val* var4 /* : String */;
-char* var5 /* : NativeString */;
-val* var6 /* : String */;
-val* var7 /* : nullable MClass */;
-val* var8 /* : nullable Numeric */;
-val* var10 /* : nullable Numeric */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-static val* varonce14;
-val* var15 /* : String */;
-char* var16 /* : NativeString */;
-val* var17 /* : String */;
-val* var18 /* : nullable MClass */;
-val* var19 /* : nullable Numeric */;
-val* var21 /* : nullable Numeric */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-static val* varonce25;
-val* var26 /* : String */;
-char* var27 /* : NativeString */;
-val* var28 /* : String */;
-val* var29 /* : nullable MClass */;
-val* var30 /* : nullable Numeric */;
-val* var32 /* : nullable Numeric */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-static val* varonce36;
-val* var37 /* : String */;
-char* var38 /* : NativeString */;
-val* var39 /* : String */;
-val* var40 /* : nullable MClass */;
-val* var41 /* : nullable Numeric */;
-val* var43 /* : nullable Numeric */;
-short int var44 /* : Bool */;
-int cltype45;
-int idtype46;
-static val* varonce47;
-val* var48 /* : String */;
-char* var49 /* : NativeString */;
-val* var50 /* : String */;
-val* var51 /* : nullable MClass */;
-val* var52 /* : nullable Numeric */;
-val* var54 /* : nullable Numeric */;
-short int var55 /* : Bool */;
-int cltype56;
-int idtype57;
-static val* varonce58;
-val* var59 /* : String */;
-char* var60 /* : NativeString */;
-val* var61 /* : String */;
-val* var62 /* : nullable MClass */;
-val* var63 /* : nullable Numeric */;
-val* var65 /* : nullable Numeric */;
-short int var66 /* : Bool */;
-int cltype67;
-int idtype68;
-static val* varonce69;
-val* var70 /* : String */;
-char* var71 /* : NativeString */;
-val* var72 /* : String */;
-val* var73 /* : nullable MClass */;
-short int var74 /* : Bool */;
-short int var75 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var77 /* : Bool */;
-short int var79 /* : Bool */;
-val* var80 /* : MClassType */;
-val* var82 /* : MClassType */;
-var_v = p0;
-var_mclass = ((val*)NULL);
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var2 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var = var2;
-RET_LABEL1:(void)0;
+var115 = nitc___nitc__MType___as_nullable(var112);
 }
+{
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_111, var115); /* Direct call array$AbstractArray$push on <var_111:Array[MType]>*/
 }
-/* <var:nullable Numeric> isa Byte */
-cltype = type_core__Byte.color;
-idtype = type_core__Byte.id;
-if(var == NULL) {
-var3 = 0;
-} else {
-if(cltype >= (((long)var&3)?type_info[((long)var&3)]:var->type)->table_size) {
-var3 = 0;
-} else {
-var3 = (((long)var&3)?type_info[((long)var&3)]:var->type)->type_table[cltype] == idtype;
+{
+var116 = nitc___nitc__MClass___get_mtype(var_colit_cla, var_111);
 }
+{
+var117 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_ittype, var116);
 }
-if (var3){
-if (likely(varonce!=NULL)) {
-var4 = varonce;
+var103 = var117;
 } else {
-var5 = "Byte";
-var6 = core__flat___NativeString___to_s_full(var5, 4l, 4l);
-var4 = var6;
-varonce = var4;
+var103 = var_;
 }
+if (var103){
 {
-var7 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var4);
+{ /* Inline typing$TypeVisitor$mmodule (var_v) on <var_v:TypeVisitor> */
+var120 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
+if (unlikely(var120 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_mclass = var7;
-} else {
-{
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var10 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var8 = var10;
-RET_LABEL9:(void)0;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
+fatal_exit(1);
 }
+var118 = var120;
+RET_LABEL119:(void)0;
 }
-/* <var8:nullable Numeric> isa Int */
-cltype12 = type_core__Int.color;
-idtype13 = type_core__Int.id;
-if(var8 == NULL) {
-var11 = 0;
-} else {
-if(cltype12 >= (((long)var8&3)?type_info[((long)var8&3)]:var8->type)->table_size) {
-var11 = 0;
-} else {
-var11 = (((long)var8&3)?type_info[((long)var8&3)]:var8->type)->type_table[cltype12] == idtype13;
 }
+{
+{ /* Inline typing$TypeVisitor$anchor (var_v) on <var_v:TypeVisitor> */
+var123 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___anchor].val; /* _anchor on <var_v:TypeVisitor> */
+var121 = var123;
+RET_LABEL122:(void)0;
 }
-if (var11){
-if (likely(varonce14!=NULL)) {
-var15 = varonce14;
-} else {
-var16 = "Int";
-var17 = core__flat___NativeString___to_s_full(var16, 3l, 3l);
-var15 = var17;
-varonce14 = var15;
 }
 {
-var18 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var15);
+var124 = nitc___nitc__MType___supertype_to(var_ittype, var118, var121, var_colit_cla);
 }
-var_mclass = var18;
-} else {
+var_coltype = var124;
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var21 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var19 = var21;
-RET_LABEL20:(void)0;
+{ /* Inline scope$AForGroup$variables (self) on <self:AForGroup> */
+var127 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
+var125 = var127;
+RET_LABEL126:(void)0;
 }
 }
-/* <var19:nullable Numeric> isa Int8 */
-cltype23 = type_core__Int8.color;
-idtype24 = type_core__Int8.id;
-if(var19 == NULL) {
-var22 = 0;
-} else {
-if(cltype23 >= (((long)var19&3)?type_info[((long)var19&3)]:var19->type)->table_size) {
-var22 = 0;
+var_variables = var125;
+if (var_variables == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1243);
+fatal_exit(1);
 } else {
-var22 = (((long)var19&3)?type_info[((long)var19&3)]:var19->type)->type_table[cltype23] == idtype24;
+{ /* Inline array$AbstractArrayRead$length (var_variables) on <var_variables:nullable Array[Variable]> */
+if (unlikely(var_variables == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
+fatal_exit(1);
 }
-if (var22){
-if (likely(varonce25!=NULL)) {
-var26 = varonce25;
-} else {
-var27 = "Int8";
-var28 = core__flat___NativeString___to_s_full(var27, 4l, 4l);
-var26 = var28;
-varonce25 = var26;
+var130 = var_variables->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_variables:nullable Array[Variable]> */
+var128 = var130;
+RET_LABEL129:(void)0;
 }
-{
-var29 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var26);
 }
-var_mclass = var29;
-} else {
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var32 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var30 = var32;
-RET_LABEL31:(void)0;
+{ /* Inline kernel$Int$!= (var128,1l) on <var128:Int> */
+var133 = var128 == 1l;
+var134 = !var133;
+var131 = var134;
+goto RET_LABEL132;
+RET_LABEL132:(void)0;
 }
 }
-/* <var30:nullable Numeric> isa Int16 */
-cltype34 = type_core__Int16.color;
-idtype35 = type_core__Int16.id;
-if(var30 == NULL) {
-var33 = 0;
+if (var131){
+if (likely(varonce135!=NULL)) {
+var136 = varonce135;
 } else {
-if(cltype34 >= (((long)var30&3)?type_info[((long)var30&3)]:var30->type)->table_size) {
-var33 = 0;
-} else {
-var33 = (((long)var30&3)?type_info[((long)var30&3)]:var30->type)->type_table[cltype34] == idtype35;
+var137 = "Type Error: `for` expects only one variable when using `Iterator`.";
+var139 = (val*)(66l<<2|1);
+var140 = (val*)(66l<<2|1);
+var141 = (val*)((long)(0)<<2|3);
+var142 = (val*)((long)(0)<<2|3);
+var138 = core__flat___CString___to_s_unsafe(var137, var139, var140, var141, var142);
+var136 = var138;
+varonce135 = var136;
 }
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var136); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-if (var33){
-if (likely(varonce36!=NULL)) {
-var37 = varonce36;
 } else {
-var38 = "Int16";
-var39 = core__flat___NativeString___to_s_full(var38, 5l, 5l);
-var37 = var39;
-varonce36 = var37;
+if (var_variables == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1246);
+fatal_exit(1);
+} else {
+var143 = core___core__SequenceRead___Collection__first(var_variables);
 }
 {
-var40 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var37);
+var144 = ((val*(*)(val* self))(var_coltype->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype); /* arguments on <var_coltype:MClassType>*/
 }
-var_mclass = var40;
-} else {
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var43 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var41 = var43;
-RET_LABEL42:(void)0;
+var145 = core___core__SequenceRead___Collection__first(var144);
+}
+{
+{ /* Inline typing$Variable$declared_type= (var143,var145) on <var143:nullable Object(Variable)> */
+var143->attrs[COLOR_nitc__typing__Variable___declared_type].val = var145; /* _declared_type on <var143:nullable Object(Variable)> */
+RET_LABEL146:(void)0;
 }
 }
-/* <var41:nullable Numeric> isa UInt16 */
-cltype45 = type_core__UInt16.color;
-idtype46 = type_core__UInt16.id;
-if(var41 == NULL) {
-var44 = 0;
+}
+var_is_col = 1;
 } else {
-if(cltype45 >= (((long)var41&3)?type_info[((long)var41&3)]:var41->type)->table_size) {
-var44 = 0;
+}
+if (var_mapit_cla == NULL) {
+var148 = 0; /* is null */
 } else {
-var44 = (((long)var41&3)?type_info[((long)var41&3)]:var41->type)->type_table[cltype45] == idtype46;
+var148 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_mapit_cla,((val*)NULL)) on <var_mapit_cla:nullable MClass> */
+var_other107 = ((val*)NULL);
+{
+var151 = ((short int(*)(val* self, val* p0))(var_mapit_cla->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mapit_cla, var_other107); /* == on <var_mapit_cla:nullable MClass(MClass)>*/
 }
+var152 = !var151;
+var149 = var152;
+goto RET_LABEL150;
+RET_LABEL150:(void)0;
 }
-if (var44){
-if (likely(varonce47!=NULL)) {
-var48 = varonce47;
-} else {
-var49 = "UInt16";
-var50 = core__flat___NativeString___to_s_full(var49, 6l, 6l);
-var48 = var50;
-varonce47 = var48;
+var148 = var149;
 }
+var_153 = var148;
+if (var148){
+var154 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-var51 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var48);
+core___core__Array___with_capacity(var154, 2l); /* Direct call array$Array$with_capacity on <var154:Array[MType]>*/
 }
-var_mclass = var51;
-} else {
+var_155 = var154;
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var54 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var52 = var54;
-RET_LABEL53:(void)0;
+{ /* Inline model$MClass$mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
+var158 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
+if (unlikely(var158 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
 }
-/* <var52:nullable Numeric> isa Int32 */
-cltype56 = type_core__Int32.color;
-idtype57 = type_core__Int32.id;
-if(var52 == NULL) {
-var55 = 0;
-} else {
-if(cltype56 >= (((long)var52&3)?type_info[((long)var52&3)]:var52->type)->table_size) {
-var55 = 0;
-} else {
-var55 = (((long)var52&3)?type_info[((long)var52&3)]:var52->type)->type_table[cltype56] == idtype57;
+var156 = var158;
+RET_LABEL157:(void)0;
 }
 }
-if (var55){
-if (likely(varonce58!=NULL)) {
-var59 = varonce58;
-} else {
-var60 = "Int32";
-var61 = core__flat___NativeString___to_s_full(var60, 5l, 5l);
-var59 = var61;
-varonce58 = var59;
+{
+var159 = nitc___nitc__MType___as_nullable(var156);
 }
 {
-var62 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var59);
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_155, var159); /* Direct call array$AbstractArray$push on <var_155:Array[MType]>*/
 }
-var_mclass = var62;
-} else {
 {
-{ /* Inline literal#AIntegerExpr#value (self) on <self:AIntegerExpr> */
-var65 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
-var63 = var65;
-RET_LABEL64:(void)0;
+{ /* Inline model$MClass$mclass_type (var_objcla) on <var_objcla:nullable MClass(MClass)> */
+var162 = var_objcla->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objcla:nullable MClass(MClass)> */
+if (unlikely(var162 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
 }
-/* <var63:nullable Numeric> isa UInt32 */
-cltype67 = type_core__UInt32.color;
-idtype68 = type_core__UInt32.id;
-if(var63 == NULL) {
-var66 = 0;
-} else {
-if(cltype67 >= (((long)var63&3)?type_info[((long)var63&3)]:var63->type)->table_size) {
-var66 = 0;
-} else {
-var66 = (((long)var63&3)?type_info[((long)var63&3)]:var63->type)->type_table[cltype67] == idtype68;
+var160 = var162;
+RET_LABEL161:(void)0;
 }
 }
-if (var66){
-if (likely(varonce69!=NULL)) {
-var70 = varonce69;
-} else {
-var71 = "UInt32";
-var72 = core__flat___NativeString___to_s_full(var71, 6l, 6l);
-var70 = var72;
-varonce69 = var70;
+{
+var163 = nitc___nitc__MType___as_nullable(var160);
 }
 {
-var73 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var70);
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_155, var163); /* Direct call array$AbstractArray$push on <var_155:Array[MType]>*/
 }
-var_mclass = var73;
-} else {
+{
+var164 = nitc___nitc__MClass___get_mtype(var_mapit_cla, var_155);
 }
+{
+var165 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_ittype, var164);
 }
+var147 = var165;
+} else {
+var147 = var_153;
 }
+if (var147){
+{
+{ /* Inline typing$TypeVisitor$mmodule (var_v) on <var_v:TypeVisitor> */
+var168 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
+if (unlikely(var168 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
+fatal_exit(1);
 }
+var166 = var168;
+RET_LABEL167:(void)0;
 }
 }
-if (var_mclass == NULL) {
-var74 = 1; /* is null */
-} else {
-var74 = 0; /* arg is null but recv is not */
+{
+{ /* Inline typing$TypeVisitor$anchor (var_v) on <var_v:TypeVisitor> */
+var171 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___anchor].val; /* _anchor on <var_v:TypeVisitor> */
+var169 = var171;
+RET_LABEL170:(void)0;
+}
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var79 = var_mclass == var_other;
-var77 = var79;
-goto RET_LABEL78;
-RET_LABEL78:(void)0;
+var172 = nitc___nitc__MType___supertype_to(var_ittype, var166, var169, var_mapit_cla);
 }
+var_coltype173 = var172;
+{
+{ /* Inline scope$AForGroup$variables (self) on <self:AForGroup> */
+var176 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
+var174 = var176;
+RET_LABEL175:(void)0;
 }
-var75 = var77;
-goto RET_LABEL76;
-RET_LABEL76:(void)0;
 }
-var74 = var75;
+var_variables177 = var174;
+if (var_variables177 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var74){
-goto RET_LABEL;
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1255);
+fatal_exit(1);
 } else {
+{ /* Inline array$AbstractArrayRead$length (var_variables177) on <var_variables177:nullable Array[Variable]> */
+if (unlikely(var_variables177 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline model#MClass#mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
-var82 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
-if (unlikely(var82 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
 fatal_exit(1);
 }
-var80 = var82;
-RET_LABEL81:(void)0;
+var180 = var_variables177->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_variables177:nullable Array[Variable]> */
+var178 = var180;
+RET_LABEL179:(void)0;
 }
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var80) on <self:AIntegerExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var80; /* _mtype on <self:AIntegerExpr> */
-RET_LABEL83:(void)0;
+{ /* Inline kernel$Int$!= (var178,2l) on <var178:Int> */
+var183 = var178 == 2l;
+var184 = !var183;
+var181 = var184;
+goto RET_LABEL182;
+RET_LABEL182:(void)0;
 }
 }
-RET_LABEL:;
-}
-/* method typing#AFloatExpr#accept_typing for (self: AFloatExpr, TypeVisitor) */
-void nitc__typing___AFloatExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-static val* varonce;
-val* var /* : String */;
-char* var1 /* : NativeString */;
-val* var2 /* : String */;
-val* var3 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : MClassType */;
-val* var12 /* : MClassType */;
-var_v = p0;
-if (likely(varonce!=NULL)) {
-var = varonce;
+if (var181){
+if (likely(varonce185!=NULL)) {
+var186 = varonce185;
 } else {
-var1 = "Float";
-var2 = core__flat___NativeString___to_s_full(var1, 5l, 5l);
-var = var2;
-varonce = var;
+var187 = "Type Error: `for` expects two variables when using `MapIterator`.";
+var189 = (val*)(65l<<2|1);
+var190 = (val*)(65l<<2|1);
+var191 = (val*)((long)(0)<<2|3);
+var192 = (val*)((long)(0)<<2|3);
+var188 = core__flat___CString___to_s_unsafe(var187, var189, var190, var191, var192);
+var186 = var188;
+varonce185 = var186;
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var186); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var_mclass = var3;
-if (var_mclass == NULL) {
-var4 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+if (var_variables177 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1258);
+fatal_exit(1);
+} else {
+var193 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_variables177, 0l);
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var9 = var_mclass == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var194 = ((val*(*)(val* self))(var_coltype173->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype173); /* arguments on <var_coltype173:MClassType>*/
 }
+{
+var195 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var194, 0l);
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+{
+{ /* Inline typing$Variable$declared_type= (var193,var195) on <var193:nullable Object(Variable)> */
+var193->attrs[COLOR_nitc__typing__Variable___declared_type].val = var195; /* _declared_type on <var193:nullable Object(Variable)> */
+RET_LABEL196:(void)0;
 }
-var4 = var5;
 }
-if (var4){
-goto RET_LABEL;
-} else {
+if (var_variables177 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline model#MClass#mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
-var12 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1259);
 fatal_exit(1);
+} else {
+var197 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_variables177, 1l);
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+{
+var198 = ((val*(*)(val* self))(var_coltype173->class->vft[COLOR_nitc__model__MClassType__arguments]))(var_coltype173); /* arguments on <var_coltype173:MClassType>*/
 }
+{
+var199 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var198, 1l);
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var10) on <self:AFloatExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var10; /* _mtype on <self:AFloatExpr> */
-RET_LABEL13:(void)0;
+{ /* Inline typing$Variable$declared_type= (var197,var199) on <var197:nullable Object(Variable)> */
+var197->attrs[COLOR_nitc__typing__Variable___declared_type].val = var199; /* _declared_type on <var197:nullable Object(Variable)> */
+RET_LABEL200:(void)0;
 }
 }
-RET_LABEL:;
 }
-/* method typing#ACharExpr#accept_typing for (self: ACharExpr, TypeVisitor) */
-void nitc__typing___ACharExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-static val* varonce;
-val* var /* : String */;
-char* var1 /* : NativeString */;
-val* var2 /* : String */;
-val* var3 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : MClassType */;
-val* var12 /* : MClassType */;
-var_v = p0;
-if (likely(varonce!=NULL)) {
-var = varonce;
+var_is_map = 1;
 } else {
-var1 = "Char";
-var2 = core__flat___NativeString___to_s_full(var1, 4l, 4l);
-var = var2;
-varonce = var;
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+var202 = !var_is_col;
+var_203 = var202;
+if (var202){
+var204 = !var_is_map;
+var201 = var204;
+} else {
+var201 = var_203;
 }
-var_mclass = var3;
-if (var_mclass == NULL) {
-var4 = 1; /* is null */
+if (var201){
+if (likely(varonce205!=NULL)) {
+var206 = varonce205;
 } else {
-var4 = 0; /* arg is null but recv is not */
+var207 = "Type Error: `for` expects the method `iterator` to return an `Iterator` or `MapIterator` type.";
+var209 = (val*)(94l<<2|1);
+var210 = (val*)(94l<<2|1);
+var211 = (val*)((long)(0)<<2|3);
+var212 = (val*)((long)(0)<<2|3);
+var208 = core__flat___CString___to_s_unsafe(var207, var209, var210, var211, var212);
+var206 = var208;
+varonce205 = var206;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var9 = var_mclass == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var206); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+goto RET_LABEL;
+} else {
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+{
+var213 = ((short int(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__need_anchor]))(var_mtype); /* need_anchor on <var_mtype:MType>*/
 }
-var4 = var5;
+if (var213){
+{
+var214 = nitc__typing___nitc__typing__TypeVisitor___anchor_to(var_v, var_mtype);
 }
-if (var4){
-goto RET_LABEL;
+var_mtype = var214;
 } else {
 }
 {
-{ /* Inline model#MClass#mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
-var12 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+var215 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__undecorate]))(var_mtype); /* undecorate on <var_mtype:MType>*/
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+var_mtype = var215;
+/* <var_mtype:MType> isa MClassType */
+cltype217 = type_nitc__MClassType.color;
+idtype218 = type_nitc__MClassType.id;
+if(cltype217 >= var_mtype->type->table_size) {
+var216 = 0;
+} else {
+var216 = var_mtype->type->type_table[cltype217] == idtype218;
 }
+if (unlikely(!var216)) {
+var_class_name = var_mtype == NULL ? "null" : var_mtype->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "MClassType", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1273);
+fatal_exit(1);
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var10) on <self:ACharExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var10; /* _mtype on <self:ACharExpr> */
-RET_LABEL13:(void)0;
-}
+{ /* Inline typing$AForGroup$coltype= (self,var_mtype) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___coltype].val = var_mtype; /* _coltype on <self:AForGroup> */
+RET_LABEL219:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AStringFormExpr#accept_typing for (self: AStringFormExpr, TypeVisitor) */
-void nitc__typing___AStringFormExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-static val* varonce;
-val* var /* : String */;
-char* var1 /* : NativeString */;
-val* var2 /* : String */;
-val* var3 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : MClassType */;
-val* var12 /* : MClassType */;
-var_v = p0;
-if (likely(varonce!=NULL)) {
-var = varonce;
+if (likely(varonce220!=NULL)) {
+var221 = varonce220;
 } else {
-var1 = "String";
-var2 = core__flat___NativeString___to_s_full(var1, 6l, 6l);
-var = var2;
-varonce = var;
+var222 = "is_ok";
+var224 = (val*)(5l<<2|1);
+var225 = (val*)(5l<<2|1);
+var226 = (val*)((long)(0)<<2|3);
+var227 = (val*)((long)(0)<<2|3);
+var223 = core__flat___CString___to_s_unsafe(var222, var224, var225, var226, var227);
+var221 = var223;
+varonce220 = var221;
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+var228 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var221, 0);
 }
-var_mclass = var3;
-if (var_mclass == NULL) {
-var4 = 1; /* is null */
+var_ikdef = var228;
+if (var_ikdef == NULL) {
+var229 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+var229 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+{ /* Inline kernel$Object$== (var_ikdef,((val*)NULL)) on <var_ikdef:nullable CallSite> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var9 = var_mclass == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_ikdef,var_other) on <var_ikdef:nullable CallSite(CallSite)> */
+var234 = var_ikdef == var_other;
+var232 = var234;
+goto RET_LABEL233;
+RET_LABEL233:(void)0;
 }
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var230 = var232;
+goto RET_LABEL231;
+RET_LABEL231:(void)0;
 }
-var4 = var5;
+var229 = var230;
 }
-if (var4){
-goto RET_LABEL;
+if (var229){
+if (unlikely(varonce235==NULL)) {
+var236 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce237!=NULL)) {
+var238 = varonce237;
 } else {
+var239 = "Type Error: `for` expects a method `is_ok` in type `";
+var241 = (val*)(52l<<2|1);
+var242 = (val*)(52l<<2|1);
+var243 = (val*)((long)(0)<<2|3);
+var244 = (val*)((long)(0)<<2|3);
+var240 = core__flat___CString___to_s_unsafe(var239, var241, var242, var243, var244);
+var238 = var240;
+varonce237 = var238;
 }
-{
-{ /* Inline model#MClass#mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
-var12 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+((struct instance_core__NativeArray*)var236)->values[0]=var238;
+if (likely(varonce245!=NULL)) {
+var246 = varonce245;
+} else {
+var247 = "`.";
+var249 = (val*)(2l<<2|1);
+var250 = (val*)(2l<<2|1);
+var251 = (val*)((long)(0)<<2|3);
+var252 = (val*)((long)(0)<<2|3);
+var248 = core__flat___CString___to_s_unsafe(var247, var249, var250, var251, var252);
+var246 = var248;
+varonce245 = var246;
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+((struct instance_core__NativeArray*)var236)->values[2]=var246;
+} else {
+var236 = varonce235;
+varonce235 = NULL;
 }
+{
+var253 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
 }
+((struct instance_core__NativeArray*)var236)->values[1]=var253;
 {
-{ /* Inline typing#AExpr#mtype= (self,var10) on <self:AStringFormExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var10; /* _mtype on <self:AStringFormExpr> */
-RET_LABEL13:(void)0;
+var254 = ((val*(*)(val* self))(var236->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var236); /* native_to_s on <var236:NativeArray[String]>*/
 }
+varonce235 = var236;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var254); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-RET_LABEL:;
+goto RET_LABEL;
+} else {
 }
-/* method typing#ASuperstringExpr#accept_typing for (self: ASuperstringExpr, TypeVisitor) */
-void nitc__typing___ASuperstringExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-static val* varonce;
-val* var /* : String */;
-char* var1 /* : NativeString */;
-val* var2 /* : String */;
-val* var3 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : MClassType */;
-val* var12 /* : MClassType */;
-static val* varonce14;
-val* var15 /* : String */;
-char* var16 /* : NativeString */;
-val* var17 /* : String */;
-val* var18 /* : nullable MClass */;
-val* var_objclass /* var objclass: nullable MClass */;
-short int var19 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var24 /* : Bool */;
-val* var25 /* : MClassType */;
-val* var27 /* : MClassType */;
-val* var_objtype /* var objtype: MClassType */;
-val* var28 /* : ANodes[AExpr] */;
-val* var30 /* : ANodes[AExpr] */;
-val* var_ /* var : ANodes[AExpr] */;
-val* var31 /* : Iterator[ANode] */;
-val* var_32 /* var : Iterator[AExpr] */;
-short int var33 /* : Bool */;
-val* var34 /* : nullable Object */;
-val* var_nexpr /* var nexpr: AExpr */;
-val* var35 /* : nullable MType */;
-var_v = p0;
-if (likely(varonce!=NULL)) {
-var = varonce;
+{
+{ /* Inline typing$AForGroup$method_is_ok= (self,var_ikdef) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_is_ok].val = var_ikdef; /* _method_is_ok on <self:AForGroup> */
+RET_LABEL255:(void)0;
+}
+}
+if (likely(varonce256!=NULL)) {
+var257 = varonce256;
 } else {
-var1 = "String";
-var2 = core__flat___NativeString___to_s_full(var1, 6l, 6l);
-var = var2;
-varonce = var;
+var258 = "item";
+var260 = (val*)(4l<<2|1);
+var261 = (val*)(4l<<2|1);
+var262 = (val*)((long)(0)<<2|3);
+var263 = (val*)((long)(0)<<2|3);
+var259 = core__flat___CString___to_s_unsafe(var258, var260, var261, var262, var263);
+var257 = var259;
+varonce256 = var257;
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+var264 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var257, 0);
 }
-var_mclass = var3;
-if (var_mclass == NULL) {
-var4 = 1; /* is null */
+var_itemdef = var264;
+if (var_itemdef == NULL) {
+var265 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+var265 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+{ /* Inline kernel$Object$== (var_itemdef,((val*)NULL)) on <var_itemdef:nullable CallSite> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var9 = var_mclass == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
-}
-var4 = var5;
+{ /* Inline kernel$Object$is_same_instance (var_itemdef,var_other) on <var_itemdef:nullable CallSite(CallSite)> */
+var270 = var_itemdef == var_other;
+var268 = var270;
+goto RET_LABEL269;
+RET_LABEL269:(void)0;
+}
+}
+var266 = var268;
+goto RET_LABEL267;
+RET_LABEL267:(void)0;
+}
+var265 = var266;
+}
+if (var265){
+if (unlikely(varonce271==NULL)) {
+var272 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce273!=NULL)) {
+var274 = varonce273;
+} else {
+var275 = "Type Error: `for` expects a method `item` in type `";
+var277 = (val*)(51l<<2|1);
+var278 = (val*)(51l<<2|1);
+var279 = (val*)((long)(0)<<2|3);
+var280 = (val*)((long)(0)<<2|3);
+var276 = core__flat___CString___to_s_unsafe(var275, var277, var278, var279, var280);
+var274 = var276;
+varonce273 = var274;
+}
+((struct instance_core__NativeArray*)var272)->values[0]=var274;
+if (likely(varonce281!=NULL)) {
+var282 = varonce281;
+} else {
+var283 = "`.";
+var285 = (val*)(2l<<2|1);
+var286 = (val*)(2l<<2|1);
+var287 = (val*)((long)(0)<<2|3);
+var288 = (val*)((long)(0)<<2|3);
+var284 = core__flat___CString___to_s_unsafe(var283, var285, var286, var287, var288);
+var282 = var284;
+varonce281 = var282;
 }
-if (var4){
-goto RET_LABEL;
+((struct instance_core__NativeArray*)var272)->values[2]=var282;
 } else {
+var272 = varonce271;
+varonce271 = NULL;
 }
 {
-{ /* Inline model#MClass#mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
-var12 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+var289 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+((struct instance_core__NativeArray*)var272)->values[1]=var289;
+{
+var290 = ((val*(*)(val* self))(var272->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var272); /* native_to_s on <var272:NativeArray[String]>*/
+}
+varonce271 = var272;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var290); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+goto RET_LABEL;
+} else {
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var10) on <self:ASuperstringExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var10; /* _mtype on <self:ASuperstringExpr> */
-RET_LABEL13:(void)0;
+{ /* Inline typing$AForGroup$method_item= (self,var_itemdef) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_item].val = var_itemdef; /* _method_item on <self:AForGroup> */
+RET_LABEL291:(void)0;
 }
 }
-if (likely(varonce14!=NULL)) {
-var15 = varonce14;
+if (likely(varonce292!=NULL)) {
+var293 = varonce292;
 } else {
-var16 = "Object";
-var17 = core__flat___NativeString___to_s_full(var16, 6l, 6l);
-var15 = var17;
-varonce14 = var15;
+var294 = "next";
+var296 = (val*)(4l<<2|1);
+var297 = (val*)(4l<<2|1);
+var298 = (val*)((long)(0)<<2|3);
+var299 = (val*)((long)(0)<<2|3);
+var295 = core__flat___CString___to_s_unsafe(var294, var296, var297, var298, var299);
+var293 = var295;
+varonce292 = var293;
 }
 {
-var18 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var15);
+var300 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var293, 0);
 }
-var_objclass = var18;
-if (var_objclass == NULL) {
-var19 = 1; /* is null */
+var_nextdef = var300;
+if (var_nextdef == NULL) {
+var301 = 1; /* is null */
 } else {
-var19 = 0; /* arg is null but recv is not */
+var301 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_objclass,((val*)NULL)) on <var_objclass:nullable MClass> */
+{ /* Inline kernel$Object$== (var_nextdef,((val*)NULL)) on <var_nextdef:nullable CallSite> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_objclass,var_other) on <var_objclass:nullable MClass(MClass)> */
-var24 = var_objclass == var_other;
-var22 = var24;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_nextdef,var_other) on <var_nextdef:nullable CallSite(CallSite)> */
+var306 = var_nextdef == var_other;
+var304 = var306;
+goto RET_LABEL305;
+RET_LABEL305:(void)0;
 }
 }
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+var302 = var304;
+goto RET_LABEL303;
+RET_LABEL303:(void)0;
 }
-var19 = var20;
+var301 = var302;
 }
-if (var19){
-goto RET_LABEL;
+if (var301){
+if (unlikely(varonce307==NULL)) {
+var308 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce309!=NULL)) {
+var310 = varonce309;
 } else {
+var311 = "Type Error: `for` expects a method `next` in type ";
+var313 = (val*)(50l<<2|1);
+var314 = (val*)(50l<<2|1);
+var315 = (val*)((long)(0)<<2|3);
+var316 = (val*)((long)(0)<<2|3);
+var312 = core__flat___CString___to_s_unsafe(var311, var313, var314, var315, var316);
+var310 = var312;
+varonce309 = var310;
 }
-{
-{ /* Inline model#MClass#mclass_type (var_objclass) on <var_objclass:nullable MClass(MClass)> */
-var27 = var_objclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objclass:nullable MClass(MClass)> */
-if (unlikely(var27 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
-fatal_exit(1);
+((struct instance_core__NativeArray*)var308)->values[0]=var310;
+if (likely(varonce317!=NULL)) {
+var318 = varonce317;
+} else {
+var319 = ".";
+var321 = (val*)(1l<<2|1);
+var322 = (val*)(1l<<2|1);
+var323 = (val*)((long)(0)<<2|3);
+var324 = (val*)((long)(0)<<2|3);
+var320 = core__flat___CString___to_s_unsafe(var319, var321, var322, var323, var324);
+var318 = var320;
+varonce317 = var318;
 }
-var25 = var27;
-RET_LABEL26:(void)0;
+((struct instance_core__NativeArray*)var308)->values[2]=var318;
+} else {
+var308 = varonce307;
+varonce307 = NULL;
 }
+{
+var325 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
 }
-var_objtype = var25;
+((struct instance_core__NativeArray*)var308)->values[1]=var325;
 {
-{ /* Inline parser_nodes#ASuperstringExpr#n_exprs (self) on <self:ASuperstringExpr> */
-var30 = self->attrs[COLOR_nitc__parser_nodes__ASuperstringExpr___n_exprs].val; /* _n_exprs on <self:ASuperstringExpr> */
-if (unlikely(var30 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_exprs");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2564);
-fatal_exit(1);
+var326 = ((val*(*)(val* self))(var308->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var308); /* native_to_s on <var308:NativeArray[String]>*/
 }
-var28 = var30;
-RET_LABEL29:(void)0;
+varonce307 = var308;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var326); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
+goto RET_LABEL;
+} else {
 }
-var_ = var28;
 {
-var31 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
+{ /* Inline typing$AForGroup$method_next= (self,var_nextdef) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_next].val = var_nextdef; /* _method_next on <self:AForGroup> */
+RET_LABEL327:(void)0;
 }
-var_32 = var31;
-for(;;) {
-{
-var33 = ((short int(*)(val* self))((((long)var_32&3)?class_info[((long)var_32&3)]:var_32->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_32); /* is_ok on <var_32:Iterator[AExpr]>*/
 }
-if (var33){
+if (likely(varonce328!=NULL)) {
+var329 = varonce328;
 } else {
-goto BREAK_label;
+var330 = "finish";
+var332 = (val*)(6l<<2|1);
+var333 = (val*)(6l<<2|1);
+var334 = (val*)((long)(0)<<2|3);
+var335 = (val*)((long)(0)<<2|3);
+var331 = core__flat___CString___to_s_unsafe(var330, var332, var333, var334, var335);
+var329 = var331;
+varonce328 = var329;
 }
 {
-var34 = ((val*(*)(val* self))((((long)var_32&3)?class_info[((long)var_32&3)]:var_32->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_32); /* item on <var_32:Iterator[AExpr]>*/
+var336 = nitc__typing___nitc__typing__TypeVisitor___try_get_method(var_v, self, var_ittype, var329, 0);
 }
-var_nexpr = var34;
 {
-var35 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_objtype);
+{ /* Inline typing$AForGroup$method_finish= (self,var336) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_finish].val = var336; /* _method_finish on <self:AForGroup> */
+RET_LABEL337:(void)0;
+}
+}
+if (var_is_map){
+if (likely(varonce338!=NULL)) {
+var339 = varonce338;
+} else {
+var340 = "key";
+var342 = (val*)(3l<<2|1);
+var343 = (val*)(3l<<2|1);
+var344 = (val*)((long)(0)<<2|3);
+var345 = (val*)((long)(0)<<2|3);
+var341 = core__flat___CString___to_s_unsafe(var340, var342, var343, var344, var345);
+var339 = var341;
+varonce338 = var339;
 }
 {
-((void(*)(val* self))((((long)var_32&3)?class_info[((long)var_32&3)]:var_32->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_32); /* next on <var_32:Iterator[AExpr]>*/
+var346 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_ittype, var339, 0);
 }
+var_keydef = var346;
+if (var_keydef == NULL) {
+var347 = 1; /* is null */
+} else {
+var347 = 0; /* arg is null but recv is not */
 }
-BREAK_label: (void)0;
+if (0) {
+{ /* Inline kernel$Object$== (var_keydef,((val*)NULL)) on <var_keydef:nullable CallSite> */
+var_other = ((val*)NULL);
 {
-((void(*)(val* self))((((long)var_32&3)?class_info[((long)var_32&3)]:var_32->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_32); /* finish on <var_32:Iterator[AExpr]>*/
+{ /* Inline kernel$Object$is_same_instance (var_keydef,var_other) on <var_keydef:nullable CallSite(CallSite)> */
+var352 = var_keydef == var_other;
+var350 = var352;
+goto RET_LABEL351;
+RET_LABEL351:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AArrayExpr#with_capacity_callsite for (self: AArrayExpr): nullable CallSite */
-val* nitc__typing___AArrayExpr___with_capacity_callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val; /* _with_capacity_callsite on <self:AArrayExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+var348 = var350;
+goto RET_LABEL349;
+RET_LABEL349:(void)0;
 }
-/* method typing#AArrayExpr#with_capacity_callsite= for (self: AArrayExpr, nullable CallSite) */
-void nitc__typing___AArrayExpr___with_capacity_callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val = p0; /* _with_capacity_callsite on <self:AArrayExpr> */
-RET_LABEL:;
+var347 = var348;
 }
-/* method typing#AArrayExpr#push_callsite for (self: AArrayExpr): nullable CallSite */
-val* nitc__typing___AArrayExpr___push_callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val; /* _push_callsite on <self:AArrayExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+if (var347){
+if (unlikely(varonce353==NULL)) {
+var354 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce355!=NULL)) {
+var356 = varonce355;
+} else {
+var357 = "Type Error: `for` expects a method `key` in type `";
+var359 = (val*)(50l<<2|1);
+var360 = (val*)(50l<<2|1);
+var361 = (val*)((long)(0)<<2|3);
+var362 = (val*)((long)(0)<<2|3);
+var358 = core__flat___CString___to_s_unsafe(var357, var359, var360, var361, var362);
+var356 = var358;
+varonce355 = var356;
 }
-/* method typing#AArrayExpr#push_callsite= for (self: AArrayExpr, nullable CallSite) */
-void nitc__typing___AArrayExpr___push_callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val = p0; /* _push_callsite on <self:AArrayExpr> */
-RET_LABEL:;
+((struct instance_core__NativeArray*)var354)->values[0]=var356;
+if (likely(varonce363!=NULL)) {
+var364 = varonce363;
+} else {
+var365 = "`.";
+var367 = (val*)(2l<<2|1);
+var368 = (val*)(2l<<2|1);
+var369 = (val*)((long)(0)<<2|3);
+var370 = (val*)((long)(0)<<2|3);
+var366 = core__flat___CString___to_s_unsafe(var365, var367, var368, var369, var370);
+var364 = var366;
+varonce363 = var364;
 }
-/* method typing#AArrayExpr#element_mtype for (self: AArrayExpr): nullable MType */
-val* nitc__typing___AArrayExpr___element_mtype(val* self) {
-val* var /* : nullable MType */;
-val* var1 /* : nullable MType */;
-var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+((struct instance_core__NativeArray*)var354)->values[2]=var364;
+} else {
+var354 = varonce353;
+varonce353 = NULL;
 }
-/* method typing#AArrayExpr#element_mtype= for (self: AArrayExpr, nullable MType) */
-void nitc__typing___AArrayExpr___element_mtype_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val = p0; /* _element_mtype on <self:AArrayExpr> */
-RET_LABEL:;
+{
+var371 = ((val*(*)(val* self))(var_ittype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_ittype); /* to_s on <var_ittype:nullable MType(MType)>*/
 }
-/* method typing#AArrayExpr#set_comprehension for (self: AArrayExpr, nullable AExpr) */
-void nitc__typing___AArrayExpr___set_comprehension(val* self, val* p0) {
-val* var_n /* var n: nullable AExpr */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
-short int var6 /* : Bool */;
-int cltype;
-int idtype;
-val* var7 /* : nullable AExpr */;
-val* var9 /* : nullable AExpr */;
-short int var10 /* : Bool */;
-int cltype11;
-int idtype12;
-val* var13 /* : nullable AExpr */;
-val* var15 /* : nullable AExpr */;
-val* var16 /* : nullable AExpr */;
-val* var18 /* : nullable AExpr */;
-var_n = p0;
-if (var_n == NULL) {
-var = 1; /* is null */
+((struct instance_core__NativeArray*)var354)->values[1]=var371;
+{
+var372 = ((val*(*)(val* self))(var354->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var354); /* native_to_s on <var354:NativeArray[String]>*/
+}
+varonce353 = var354;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var372); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
+}
+goto RET_LABEL;
+} else {
+}
+{
+{ /* Inline typing$AForGroup$method_key= (self,var_keydef) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_key].val = var_keydef; /* _method_key on <self:AForGroup> */
+RET_LABEL373:(void)0;
+}
+}
+} else {
+}
+{
+{ /* Inline scope$AForGroup$variables (self) on <self:AForGroup> */
+var377 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
+var375 = var377;
+RET_LABEL376:(void)0;
+}
+}
+if (var375 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1308);
+fatal_exit(1);
 } else {
-var = 0; /* arg is null but recv is not */
+{ /* Inline array$AbstractArrayRead$length (var375) on <var375:nullable Array[Variable]> */
+if (unlikely(var375 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__array, 26);
+fatal_exit(1);
+}
+var380 = var375->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var375:nullable Array[Variable]> */
+var378 = var380;
+RET_LABEL379:(void)0;
+}
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_n,((val*)NULL)) on <var_n:nullable AExpr> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_n,var_other) on <var_n:nullable AExpr(AExpr)> */
-var5 = var_n == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+{ /* Inline kernel$Int$== (var378,1l) on <var378:Int> */
+var383 = var378 == 1l;
+var381 = var383;
+goto RET_LABEL382;
+RET_LABEL382:(void)0;
 }
 }
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
+var_384 = var381;
+if (var381){
+{
+{ /* Inline parser_nodes$AForGroup$n_expr (self) on <self:AForGroup> */
+var387 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
+if (unlikely(var387 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var = var1;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2024);
+fatal_exit(1);
 }
-if (var){
-goto RET_LABEL;
+var385 = var387;
+RET_LABEL386:(void)0;
+}
+}
+/* <var385:AExpr> isa ARangeExpr */
+cltype389 = type_nitc__ARangeExpr.color;
+idtype390 = type_nitc__ARangeExpr.id;
+if(cltype389 >= var385->type->table_size) {
+var388 = 0;
 } else {
-/* <var_n:nullable AExpr(AExpr)> isa AForExpr */
-cltype = type_nitc__AForExpr.color;
-idtype = type_nitc__AForExpr.id;
-if(cltype >= var_n->type->table_size) {
-var6 = 0;
+var388 = var385->type->type_table[cltype389] == idtype390;
+}
+var374 = var388;
 } else {
-var6 = var_n->type->type_table[cltype] == idtype;
+var374 = var_384;
 }
-if (var6){
+if (var374){
 {
-{ /* Inline parser_nodes#AForExpr#n_block (var_n) on <var_n:nullable AExpr(AForExpr)> */
-var9 = var_n->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <var_n:nullable AExpr(AForExpr)> */
-var7 = var9;
-RET_LABEL8:(void)0;
+{ /* Inline scope$AForGroup$variables (self) on <self:AForGroup> */
+var393 = self->attrs[COLOR_nitc__scope__AForGroup___variables].val; /* _variables on <self:AForGroup> */
+var391 = var393;
+RET_LABEL392:(void)0;
+}
+}
+if (var391 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1309);
+fatal_exit(1);
+} else {
+var394 = core___core__SequenceRead___Collection__first(var391);
 }
+var_variable = var394;
+{
+{ /* Inline typing$Variable$declared_type (var_variable) on <var_variable:Variable> */
+var397 = var_variable->attrs[COLOR_nitc__typing__Variable___declared_type].val; /* _declared_type on <var_variable:Variable> */
+var395 = var397;
+RET_LABEL396:(void)0;
+}
+}
+if (unlikely(var395 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1310);
+fatal_exit(1);
 }
+var_vtype = var395;
 {
-nitc__typing___AArrayExpr___set_comprehension(self, var7); /* Direct call typing#AArrayExpr#set_comprehension on <self:AArrayExpr>*/
+{ /* Inline parser_nodes$AForGroup$n_expr (self) on <self:AForGroup> */
+var400 = self->attrs[COLOR_nitc__parser_nodes__AForGroup___n_expr].val; /* _n_expr on <self:AForGroup> */
+if (unlikely(var400 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2024);
+fatal_exit(1);
+}
+var398 = var400;
+RET_LABEL399:(void)0;
 }
+}
+/* <var398:AExpr> isa AOrangeExpr */
+cltype402 = type_nitc__AOrangeExpr.color;
+idtype403 = type_nitc__AOrangeExpr.id;
+if(cltype402 >= var398->type->table_size) {
+var401 = 0;
 } else {
-/* <var_n:nullable AExpr(AExpr)> isa AIfExpr */
-cltype11 = type_nitc__AIfExpr.color;
-idtype12 = type_nitc__AIfExpr.id;
-if(cltype11 >= var_n->type->table_size) {
-var10 = 0;
+var401 = var398->type->type_table[cltype402] == idtype403;
+}
+if (var401){
+if (likely(varonce404!=NULL)) {
+var405 = varonce404;
 } else {
-var10 = var_n->type->type_table[cltype11] == idtype12;
+var406 = "<";
+var408 = (val*)(1l<<2|1);
+var409 = (val*)(1l<<2|1);
+var410 = (val*)((long)(0)<<2|3);
+var411 = (val*)((long)(0)<<2|3);
+var407 = core__flat___CString___to_s_unsafe(var406, var408, var409, var410, var411);
+var405 = var407;
+varonce404 = var405;
 }
-if (var10){
 {
-{ /* Inline parser_nodes#AIfExpr#n_then (var_n) on <var_n:nullable AExpr(AIfExpr)> */
-var15 = var_n->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <var_n:nullable AExpr(AIfExpr)> */
-var13 = var15;
-RET_LABEL14:(void)0;
+var412 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var405, 0);
+}
+{
+{ /* Inline typing$AForGroup$method_lt= (self,var412) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = var412; /* _method_lt on <self:AForGroup> */
+RET_LABEL413:(void)0;
 }
 }
+} else {
+if (likely(varonce414!=NULL)) {
+var415 = varonce414;
+} else {
+var416 = "<=";
+var418 = (val*)(2l<<2|1);
+var419 = (val*)(2l<<2|1);
+var420 = (val*)((long)(0)<<2|3);
+var421 = (val*)((long)(0)<<2|3);
+var417 = core__flat___CString___to_s_unsafe(var416, var418, var419, var420, var421);
+var415 = var417;
+varonce414 = var415;
+}
 {
-nitc__typing___AArrayExpr___set_comprehension(self, var13); /* Direct call typing#AArrayExpr#set_comprehension on <self:AArrayExpr>*/
+var422 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var415, 0);
 }
 {
-{ /* Inline parser_nodes#AIfExpr#n_else (var_n) on <var_n:nullable AExpr(AIfExpr)> */
-var18 = var_n->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <var_n:nullable AExpr(AIfExpr)> */
-var16 = var18;
-RET_LABEL17:(void)0;
+{ /* Inline typing$AForGroup$method_lt= (self,var422) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_lt].val = var422; /* _method_lt on <self:AForGroup> */
+RET_LABEL423:(void)0;
 }
 }
-{
-nitc__typing___AArrayExpr___set_comprehension(self, var16); /* Direct call typing#AArrayExpr#set_comprehension on <self:AArrayExpr>*/
 }
+if (likely(varonce424!=NULL)) {
+var425 = varonce424;
 } else {
+var426 = "successor";
+var428 = (val*)(9l<<2|1);
+var429 = (val*)(9l<<2|1);
+var430 = (val*)((long)(0)<<2|3);
+var431 = (val*)((long)(0)<<2|3);
+var427 = core__flat___CString___to_s_unsafe(var426, var428, var429, var430, var431);
+var425 = var427;
+varonce424 = var425;
+}
 {
-{ /* Inline typing#AExpr#comprehension= (var_n,self) on <var_n:nullable AExpr(AExpr)> */
-var_n->attrs[COLOR_nitc__typing__AExpr___comprehension].val = self; /* _comprehension on <var_n:nullable AExpr(AExpr)> */
-RET_LABEL19:(void)0;
+var432 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_vtype, var425, 0);
+}
+{
+{ /* Inline typing$AForGroup$method_successor= (self,var432) on <self:AForGroup> */
+self->attrs[COLOR_nitc__typing__AForGroup___method_successor].val = var432; /* _method_successor on <self:AForGroup> */
+RET_LABEL433:(void)0;
 }
 }
+} else {
 }
+RET_LABEL:;
 }
+/* method typing$AWithExpr$method_start for (self: AWithExpr): nullable CallSite */
+val* nitc__typing___AWithExpr___method_start(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val; /* _method_start on <self:AWithExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AWithExpr$method_start= for (self: AWithExpr, nullable CallSite) */
+void nitc__typing___AWithExpr___method_start_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val = p0; /* _method_start on <self:AWithExpr> */
 RET_LABEL:;
 }
-/* method typing#AArrayExpr#accept_typing for (self: AArrayExpr, TypeVisitor) */
-void nitc__typing___AArrayExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AWithExpr$method_finish for (self: AWithExpr): nullable CallSite */
+val* nitc__typing___AWithExpr___method_finish(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val; /* _method_finish on <self:AWithExpr> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method typing$AWithExpr$method_finish= for (self: AWithExpr, nullable CallSite) */
+void nitc__typing___AWithExpr___method_finish_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val = p0; /* _method_finish on <self:AWithExpr> */
+RET_LABEL:;
+}
+/* method typing$AWithExpr$accept_typing for (self: AWithExpr, TypeVisitor) */
+void nitc__typing___AWithExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
 val* var_mtype /* var mtype: nullable MType */;
-val* var /* : nullable AType */;
-val* var2 /* : nullable AType */;
-val* var_ntype /* var ntype: nullable AType */;
-short int var3 /* : Bool */;
 short int var4 /* : Bool */;
+short int var5 /* : Bool */;
 val* var_other /* var other: nullable Object */;
-short int var6 /* : Bool */;
 short int var7 /* : Bool */;
-val* var8 /* : nullable MType */;
 short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var_other12 /* var other: nullable Object */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-val* var16 /* : Array[nullable MType] */;
-val* var_mtypes /* var mtypes: Array[nullable MType] */;
-short int var_useless /* var useless: Bool */;
-val* var17 /* : ANodes[AExpr] */;
-val* var19 /* : ANodes[AExpr] */;
-val* var_ /* var : ANodes[AExpr] */;
-val* var20 /* : Iterator[ANode] */;
-val* var_21 /* var : Iterator[AExpr] */;
-short int var22 /* : Bool */;
-val* var23 /* : nullable Object */;
-val* var_e /* var e: AExpr */;
-val* var24 /* : nullable MType */;
-val* var_t /* var t: nullable MType */;
-short int var25 /* : Bool */;
-short int var26 /* : Bool */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-short int var31 /* : Bool */;
-short int var32 /* : Bool */;
-short int var34 /* : Bool */;
-short int var35 /* : Bool */;
-val* var36 /* : nullable MType */;
-short int var37 /* : Bool */;
-short int var38 /* : Bool */;
-short int var40 /* : Bool */;
-short int var42 /* : Bool */;
-short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-short int var47 /* : Bool */;
-short int var48 /* : Bool */;
-short int var49 /* : Bool */;
-short int var51 /* : Bool */;
-short int var53 /* : Bool */;
-val* var54 /* : nullable MType */;
-val* var56 /* : nullable MType */;
-short int var57 /* : Bool */;
-short int var58 /* : Bool */;
-short int var60 /* : Bool */;
-short int var61 /* : Bool */;
-val* var62 /* : nullable MType */;
-val* var64 /* : nullable MType */;
-val* var65 /* : nullable MType */;
-short int var66 /* : Bool */;
-short int var67 /* : Bool */;
-short int var68 /* : Bool */;
-short int var70 /* : Bool */;
-short int var72 /* : Bool */;
-short int var_73 /* var : Bool */;
-short int var74 /* : Bool */;
+static val* varonce;
+val* var10 /* : String */;
+char* var11 /* : CString */;
+val* var12 /* : String */;
+val* var13 /* : nullable Int */;
+val* var14 /* : nullable Int */;
+val* var15 /* : nullable Bool */;
+val* var16 /* : nullable Bool */;
+val* var17 /* : AExpr */;
+val* var19 /* : AExpr */;
+short int var20 /* : Bool */;
 int cltype;
 int idtype;
-val* var75 /* : NativeArray[String] */;
-static val* varonce;
-static val* varonce76;
-val* var77 /* : String */;
-char* var78 /* : NativeString */;
-val* var79 /* : String */;
-static val* varonce80;
-val* var81 /* : String */;
-char* var82 /* : NativeString */;
-val* var83 /* : String */;
-val* var84 /* : String */;
-val* var85 /* : String */;
-short int var86 /* : Bool */;
-short int var87 /* : Bool */;
-short int var89 /* : Bool */;
-short int var90 /* : Bool */;
-val* var91 /* : ModelBuilder */;
-val* var93 /* : ModelBuilder */;
-static val* varonce94;
-val* var95 /* : String */;
-char* var96 /* : NativeString */;
-val* var97 /* : String */;
-val* var99 /* : NativeArray[String] */;
-static val* varonce98;
-static val* varonce100;
-val* var101 /* : String */;
-char* var102 /* : NativeString */;
-val* var103 /* : String */;
-static val* varonce104;
-val* var105 /* : String */;
-char* var106 /* : NativeString */;
-val* var107 /* : String */;
-val* var108 /* : String */;
-val* var109 /* : String */;
-static val* varonce111;
-val* var112 /* : String */;
-char* var113 /* : NativeString */;
-val* var114 /* : String */;
-val* var115 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var116 /* : Bool */;
-short int var117 /* : Bool */;
-short int var119 /* : Bool */;
-short int var121 /* : Bool */;
-val* var122 /* : Array[MType] */;
-val* var_123 /* var : Array[MType] */;
-val* var124 /* : MClassType */;
-val* var_array_mtype /* var array_mtype: MClassType */;
-static val* varonce125;
-val* var126 /* : String */;
-char* var127 /* : NativeString */;
-val* var128 /* : String */;
-val* var129 /* : nullable CallSite */;
-static val* varonce131;
-val* var132 /* : String */;
-char* var133 /* : NativeString */;
-val* var134 /* : String */;
-val* var135 /* : nullable CallSite */;
+val* var21 /* : nullable CallSite */;
+static val* varonce23;
+val* var24 /* : String */;
+char* var25 /* : CString */;
+val* var26 /* : String */;
+val* var27 /* : nullable Int */;
+val* var28 /* : nullable Int */;
+val* var29 /* : nullable Bool */;
+val* var30 /* : nullable Bool */;
+val* var31 /* : AExpr */;
+val* var33 /* : AExpr */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+val* var37 /* : nullable CallSite */;
+val* var39 /* : nullable AExpr */;
+val* var41 /* : nullable AExpr */;
+val* var42 /* : nullable AExpr */;
+val* var44 /* : nullable AExpr */;
+val* var45 /* : nullable MType */;
 var_v = p0;
-var_mtype = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AArrayExpr#n_type (self) on <self:AArrayExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AArrayExpr___n_type].val; /* _n_type on <self:AArrayExpr> */
+{ /* Inline parser_nodes$AWithExpr$n_expr (self) on <self:AWithExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2036);
+fatal_exit(1);
+}
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_ntype = var;
-if (var_ntype == NULL) {
-var3 = 0; /* is null */
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+}
+var_mtype = var3;
+if (var_mtype == NULL) {
+var4 = 1; /* is null */
+} else {
+var4 = 0; /* arg is null but recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other = ((val*)NULL);
+{
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var9 = var_mtype == var_other;
+var7 = var9;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
+}
+}
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+var4 = var5;
+}
+if (var4){
+goto RET_LABEL;
+} else {
+}
+if (likely(varonce!=NULL)) {
+var10 = varonce;
+} else {
+var11 = "start";
+var13 = (val*)(5l<<2|1);
+var14 = (val*)(5l<<2|1);
+var15 = (val*)((long)(0)<<2|3);
+var16 = (val*)((long)(0)<<2|3);
+var12 = core__flat___CString___to_s_unsafe(var11, var13, var14, var15, var16);
+var10 = var12;
+varonce = var10;
+}
+{
+{ /* Inline parser_nodes$AWithExpr$n_expr (self) on <self:AWithExpr> */
+var19 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
+if (unlikely(var19 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2036);
+fatal_exit(1);
+}
+var17 = var19;
+RET_LABEL18:(void)0;
+}
+}
+/* <var17:AExpr> isa ASelfExpr */
+cltype = type_nitc__ASelfExpr.color;
+idtype = type_nitc__ASelfExpr.id;
+if(cltype >= var17->type->table_size) {
+var20 = 0;
 } else {
-var3 = 1; /* arg is null and recv is not */
+var20 = var17->type->type_table[cltype] == idtype;
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
-var_other = ((val*)NULL);
 {
-var6 = ((short int(*)(val* self, val* p0))(var_ntype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ntype, var_other); /* == on <var_ntype:nullable AType(AType)>*/
+var21 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var10, var20);
 }
-var7 = !var6;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+{
+{ /* Inline typing$AWithExpr$method_start= (self,var21) on <self:AWithExpr> */
+self->attrs[COLOR_nitc__typing__AWithExpr___method_start].val = var21; /* _method_start on <self:AWithExpr> */
+RET_LABEL22:(void)0;
 }
-var3 = var4;
 }
-if (var3){
+if (likely(varonce23!=NULL)) {
+var24 = varonce23;
+} else {
+var25 = "finish";
+var27 = (val*)(6l<<2|1);
+var28 = (val*)(6l<<2|1);
+var29 = (val*)((long)(0)<<2|3);
+var30 = (val*)((long)(0)<<2|3);
+var26 = core__flat___CString___to_s_unsafe(var25, var27, var28, var29, var30);
+var24 = var26;
+varonce23 = var24;
+}
 {
-var8 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var_ntype);
+{ /* Inline parser_nodes$AWithExpr$n_expr (self) on <self:AWithExpr> */
+var33 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
+if (unlikely(var33 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_mtype = var8;
-if (var_mtype == NULL) {
-var9 = 1; /* is null */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2036);
+fatal_exit(1);
+}
+var31 = var33;
+RET_LABEL32:(void)0;
+}
+}
+/* <var31:AExpr> isa ASelfExpr */
+cltype35 = type_nitc__ASelfExpr.color;
+idtype36 = type_nitc__ASelfExpr.id;
+if(cltype35 >= var31->type->table_size) {
+var34 = 0;
 } else {
-var9 = 0; /* arg is null but recv is not */
+var34 = var31->type->type_table[cltype35] == idtype36;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other12 = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
-var15 = var_mtype == var_other12;
-var13 = var15;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+var37 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var24, var34);
 }
+{
+{ /* Inline typing$AWithExpr$method_finish= (self,var37) on <self:AWithExpr> */
+self->attrs[COLOR_nitc__typing__AWithExpr___method_finish].val = var37; /* _method_finish on <self:AWithExpr> */
+RET_LABEL38:(void)0;
 }
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
 }
-var9 = var10;
+{
+{ /* Inline parser_nodes$AWithExpr$n_block (self) on <self:AWithExpr> */
+var41 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+var39 = var41;
+RET_LABEL40:(void)0;
 }
-if (var9){
-goto RET_LABEL;
-} else {
 }
+{
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var39); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
+}
+{
+{ /* Inline parser_nodes$AWithExpr$n_block (self) on <self:AWithExpr> */
+var44 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+var42 = var44;
+RET_LABEL43:(void)0;
+}
+}
+if (var42 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1336);
+fatal_exit(1);
 } else {
+var45 = ((val*(*)(val* self))(var42->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var42); /* mtype on <var42:nullable AExpr>*/
 }
-var16 = NEW_core__Array(&type_core__Array__nullable__nitc__MType);
 {
-core___core__Array___core__kernel__Object__init(var16); /* Direct call array#Array#init on <var16:Array[nullable MType]>*/
+{ /* Inline typing$AExpr$mtype= (self,var45) on <self:AWithExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var45; /* _mtype on <self:AWithExpr> */
+RET_LABEL46:(void)0;
+}
 }
-var_mtypes = var16;
-var_useless = 0;
 {
-{ /* Inline parser_nodes#AArrayExpr#n_exprs (self) on <self:AArrayExpr> */
-var19 = self->attrs[COLOR_nitc__parser_nodes__AArrayExpr___n_exprs].val; /* _n_exprs on <self:AArrayExpr> */
-if (unlikely(var19 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_exprs");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2460);
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AWithExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AWithExpr> */
+RET_LABEL47:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method typing$AAssertExpr$accept_typing for (self: AAssertExpr, TypeVisitor) */
+void nitc__typing___AAssertExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : nullable AExpr */;
+val* var6 /* : nullable AExpr */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$AAssertExpr$n_expr (self) on <self:AAssertExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2056);
 fatal_exit(1);
 }
-var17 = var19;
-RET_LABEL18:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-var_ = var17;
 {
-var20 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
-var_21 = var20;
-for(;;) {
 {
-var22 = ((short int(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_21); /* is_ok on <var_21:Iterator[AExpr]>*/
+{ /* Inline parser_nodes$AAssertExpr$n_else (self) on <self:AAssertExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-if (var22){
-} else {
-goto BREAK_label;
 }
 {
-var23 = ((val*(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_21); /* item on <var_21:Iterator[AExpr]>*/
+nitc__typing___nitc__typing__TypeVisitor___visit_stmt(var_v, var4); /* Direct call typing$TypeVisitor$visit_stmt on <var_v:TypeVisitor>*/
 }
-var_e = var23;
 {
-var24 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_e);
+{ /* Inline typing$AExpr$is_typed= (self,1) on <self:AAssertExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:AAssertExpr> */
+RET_LABEL7:(void)0;
 }
-var_t = var24;
-if (var_t == NULL) {
-var25 = 1; /* is null */
-} else {
-var25 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_t,((val*)NULL)) on <var_t:nullable MType> */
-var_other12 = ((val*)NULL);
+RET_LABEL:;
+}
+/* method typing$AOrExpr$accept_typing for (self: AOrExpr, TypeVisitor) */
+void nitc__typing___AOrExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AExpr */;
+val* var6 /* : AExpr */;
+val* var7 /* : nullable MType */;
+val* var8 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline kernel#Object#is_same_instance (var_t,var_other12) on <var_t:nullable MType(MType)> */
-var30 = var_t == var_other12;
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AOrExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
+fatal_exit(1);
 }
-var26 = var28;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
-var25 = var26;
 }
-if (var25){
-goto RET_LABEL;
-} else {
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
 {
-nitc__typing___AArrayExpr___set_comprehension(self, var_e); /* Direct call typing#AArrayExpr#set_comprehension on <self:AArrayExpr>*/
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr2 (self) on <self:AOrExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var_mtype == NULL) {
-var31 = 0; /* is null */
-} else {
-var31 = 1; /* arg is null and recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2137);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other = ((val*)NULL);
-{
-var34 = ((short int(*)(val* self, val* p0))(var_mtype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mtype, var_other); /* == on <var_mtype:nullable MType(MType)>*/
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-var35 = !var34;
-var32 = var35;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
 }
-var31 = var32;
+{
+var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
 }
-if (var31){
 {
-var36 = nitc__typing___nitc__typing__TypeVisitor___check_subtype(var_v, var_e, var_t, var_mtype, 0);
+var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-if (var36 == NULL) {
-var37 = 1; /* is null */
-} else {
-var37 = 0; /* arg is null but recv is not */
+{
+{ /* Inline typing$AExpr$mtype= (self,var8) on <self:AOrExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AOrExpr> */
+RET_LABEL9:(void)0;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var36,((val*)NULL)) on <var36:nullable MType> */
-var_other12 = ((val*)NULL);
+}
+RET_LABEL:;
+}
+/* method typing$AImpliesExpr$accept_typing for (self: AImpliesExpr, TypeVisitor) */
+void nitc__typing___AImpliesExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AExpr */;
+val* var6 /* : AExpr */;
+val* var7 /* : nullable MType */;
+val* var8 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline kernel#Object#is_same_instance (var36,var_other12) on <var36:nullable MType(MType)> */
-var42 = var36 == var_other12;
-var40 = var42;
-goto RET_LABEL41;
-RET_LABEL41:(void)0;
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AImpliesExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
+fatal_exit(1);
 }
-var38 = var40;
-goto RET_LABEL39;
-RET_LABEL39:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
-var37 = var38;
 }
-if (var37){
-goto RET_LABEL;
-} else {
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
 {
-{ /* Inline kernel#Object#== (var_t,var_mtype) on <var_t:nullable MType(MType)> */
-var_other12 = var_mtype;
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr2 (self) on <self:AImpliesExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AImpliesExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2137);
+fatal_exit(1);
+}
+var4 = var6;
+RET_LABEL5:(void)0;
+}
+}
 {
-{ /* Inline kernel#Object#is_same_instance (var_t,var_other12) on <var_t:nullable MType(MType)> */
-var47 = var_t == var_other12;
-var45 = var47;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
 }
+{
+var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-var43 = var45;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
+{
+{ /* Inline typing$AExpr$mtype= (self,var8) on <self:AImpliesExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AImpliesExpr> */
+RET_LABEL9:(void)0;
 }
 }
-if (var43){
-var_useless = 1;
-} else {
+RET_LABEL:;
 }
-} else {
+/* method typing$AAndExpr$accept_typing for (self: AAndExpr, TypeVisitor) */
+void nitc__typing___AAndExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AExpr */;
+val* var6 /* : AExpr */;
+val* var7 /* : nullable MType */;
+val* var8 /* : nullable MType */;
+var_v = p0;
 {
-core___core__Array___core__abstract_collection__SimpleCollection__add(var_mtypes, var_t); /* Direct call array#Array#add on <var_mtypes:Array[nullable MType]>*/
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AAndExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
+fatal_exit(1);
 }
-{
-((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_21); /* next on <var_21:Iterator[AExpr]>*/
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-BREAK_label: (void)0;
 {
-((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_21); /* finish on <var_21:Iterator[AExpr]>*/
-}
-if (var_mtype == NULL) {
-var48 = 1; /* is null */
-} else {
-var48 = 0; /* arg is null but recv is not */
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other12 = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
-var53 = var_mtype == var_other12;
-var51 = var53;
-goto RET_LABEL52;
-RET_LABEL52:(void)0;
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr2 (self) on <self:AAndExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AAndExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2137);
+fatal_exit(1);
 }
-var49 = var51;
-goto RET_LABEL50;
-RET_LABEL50:(void)0;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-var48 = var49;
 }
-if (var48){
 {
-{ /* Inline typing#AArrayExpr#element_mtype (self) on <self:AArrayExpr> */
-var56 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
-var54 = var56;
-RET_LABEL55:(void)0;
-}
+var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var4);
 }
-if (var54 == NULL) {
-var57 = 0; /* is null */
-} else {
-var57 = 1; /* arg is null and recv is not */
+{
+var8 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var54,((val*)NULL)) on <var54:nullable MType> */
-var_other = ((val*)NULL);
 {
-var60 = ((short int(*)(val* self, val* p0))(var54->class->vft[COLOR_core__kernel__Object___61d_61d]))(var54, var_other); /* == on <var54:nullable MType(MType)>*/
+{ /* Inline typing$AExpr$mtype= (self,var8) on <self:AAndExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var8; /* _mtype on <self:AAndExpr> */
+RET_LABEL9:(void)0;
 }
-var61 = !var60;
-var58 = var61;
-goto RET_LABEL59;
-RET_LABEL59:(void)0;
 }
-var57 = var58;
+RET_LABEL:;
 }
-if (var57){
+/* method typing$ANotExpr$accept_typing for (self: ANotExpr, TypeVisitor) */
+void nitc__typing___ANotExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline typing#AArrayExpr#element_mtype (self) on <self:AArrayExpr> */
-var64 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
-var62 = var64;
-RET_LABEL63:(void)0;
+{ /* Inline parser_nodes$ANotExpr$n_expr (self) on <self:ANotExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2171);
+fatal_exit(1);
+}
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
 {
-core___core__Array___core__abstract_collection__SimpleCollection__add(var_mtypes, var62); /* Direct call array#Array#add on <var_mtypes:Array[nullable MType]>*/
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_bool(var_v, var);
 }
-} else {
+{
+var4 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
 {
-var65 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_mtypes);
+{ /* Inline typing$AExpr$mtype= (self,var4) on <self:ANotExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var4; /* _mtype on <self:ANotExpr> */
+RET_LABEL5:(void)0;
 }
-var_mtype = var65;
-} else {
 }
-if (var_mtype == NULL) {
-var67 = 1; /* is null */
-} else {
-var67 = 0; /* arg is null but recv is not */
+RET_LABEL:;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other12 = ((val*)NULL);
+/* method typing$AOrElseExpr$accept_typing for (self: AOrElseExpr, TypeVisitor) */
+void nitc__typing___AOrElseExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var_t1 /* var t1: nullable MType */;
+val* var4 /* : AExpr */;
+val* var6 /* : AExpr */;
+val* var7 /* : nullable MType */;
+val* var_t2 /* var t2: nullable MType */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+short int var21 /* : Bool */;
+int cltype;
+int idtype;
+short int var23 /* : Bool */;
+val* var24 /* : MType */;
+val* var25 /* : Array[MType] */;
+val* var_26 /* var : Array[MType] */;
+val* var27 /* : nullable MType */;
+val* var_t /* var t: nullable MType */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+static val* varonce;
+val* var34 /* : String */;
+char* var35 /* : CString */;
+val* var36 /* : String */;
+val* var37 /* : nullable Int */;
+val* var38 /* : nullable Int */;
+val* var39 /* : nullable Bool */;
+val* var40 /* : nullable Bool */;
+val* var41 /* : nullable MClass */;
+val* var_c /* var c: nullable MClass */;
+short int var42 /* : Bool */;
+short int var43 /* : Bool */;
+short int var45 /* : Bool */;
+short int var47 /* : Bool */;
+val* var48 /* : MClassType */;
+val* var50 /* : MClassType */;
+short int var51 /* : Bool */;
+val* var52 /* : MType */;
+var_v = p0;
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
-var72 = var_mtype == var_other12;
-var70 = var72;
-goto RET_LABEL71;
-RET_LABEL71:(void)0;
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AOrElseExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
+fatal_exit(1);
 }
-var68 = var70;
-goto RET_LABEL69;
-RET_LABEL69:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
-var67 = var68;
 }
-var_73 = var67;
-if (var67){
-var66 = var_73;
-} else {
-/* <var_mtype:nullable MType(MType)> isa MNullType */
-cltype = type_nitc__MNullType.color;
-idtype = type_nitc__MNullType.id;
-if(cltype >= var_mtype->type->table_size) {
-var74 = 0;
-} else {
-var74 = var_mtype->type->type_table[cltype] == idtype;
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
 }
-var66 = var74;
+var_t1 = var3;
+{
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr2 (self) on <self:AOrElseExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var66){
-if (unlikely(varonce==NULL)) {
-var75 = NEW_core__NativeArray(2l, &type_core__NativeArray__core__String);
-if (likely(varonce76!=NULL)) {
-var77 = varonce76;
-} else {
-var78 = "Type Error: ambiguous array type ";
-var79 = core__flat___NativeString___to_s_full(var78, 33l, 33l);
-var77 = var79;
-varonce76 = var77;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2137);
+fatal_exit(1);
 }
-((struct instance_core__NativeArray*)var75)->values[0]=var77;
-} else {
-var75 = varonce;
-varonce = NULL;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-if (likely(varonce80!=NULL)) {
-var81 = varonce80;
-} else {
-var82 = " ";
-var83 = core__flat___NativeString___to_s_full(var82, 1l, 1l);
-var81 = var83;
-varonce80 = var81;
 }
 {
-var84 = core__abstract_text___Collection___join(var_mtypes, var81);
+var7 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var4);
 }
-((struct instance_core__NativeArray*)var75)->values[1]=var84;
-{
-var85 = ((val*(*)(val* self))(var75->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var75); /* native_to_s on <var75:NativeArray[String]>*/
+var_t2 = var7;
+if (var_t1 == NULL) {
+var9 = 1; /* is null */
+} else {
+var9 = 0; /* arg is null but recv is not */
 }
-varonce = var75;
+if (0) {
+{ /* Inline kernel$Object$== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+var_other = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var85); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline kernel$Object$is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
+var14 = var_t1 == var_other;
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
-goto RET_LABEL;
-} else {
 }
-if (var_useless){
-if (var_ntype == NULL) {
-var86 = 0; /* is null */
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
+}
+var9 = var10;
+}
+var_ = var9;
+if (var9){
+var8 = var_;
+} else {
+if (var_t2 == NULL) {
+var15 = 1; /* is null */
 } else {
-var86 = 1; /* arg is null and recv is not */
+var15 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
+{ /* Inline kernel$Object$== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
 var_other = ((val*)NULL);
 {
-var89 = ((short int(*)(val* self, val* p0))(var_ntype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ntype, var_other); /* == on <var_ntype:nullable AType(AType)>*/
+{ /* Inline kernel$Object$is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
+var20 = var_t2 == var_other;
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
-var90 = !var89;
-var87 = var90;
-goto RET_LABEL88;
-RET_LABEL88:(void)0;
 }
-var86 = var87;
+var16 = var18;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
+}
+var15 = var16;
 }
-if (unlikely(!var86)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1539);
-fatal_exit(1);
+var8 = var15;
 }
-{
-{ /* Inline typing#TypeVisitor#modelbuilder (var_v) on <var_v:TypeVisitor> */
-var93 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___modelbuilder].val; /* _modelbuilder on <var_v:TypeVisitor> */
-if (unlikely(var93 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _modelbuilder");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 35);
-fatal_exit(1);
+if (var8){
+goto RET_LABEL;
+} else {
+}
+/* <var_t1:nullable MType(MType)> isa MNullType */
+cltype = type_nitc__MNullType.color;
+idtype = type_nitc__MNullType.id;
+if(cltype >= var_t1->type->table_size) {
+var21 = 0;
+} else {
+var21 = var_t1->type->type_table[cltype] == idtype;
 }
-var91 = var93;
-RET_LABEL92:(void)0;
+if (var21){
+{
+{ /* Inline typing$AExpr$mtype= (self,var_t2) on <self:AOrElseExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t2; /* _mtype on <self:AOrElseExpr> */
+RET_LABEL22:(void)0;
 }
 }
-if (likely(varonce94!=NULL)) {
-var95 = varonce94;
+goto RET_LABEL;
 } else {
-var96 = "useless-type";
-var97 = core__flat___NativeString___to_s_full(var96, 12l, 12l);
-var95 = var97;
-varonce94 = var95;
+{
+var23 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_t1);
 }
-if (unlikely(varonce98==NULL)) {
-var99 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce100!=NULL)) {
-var101 = varonce100;
-} else {
-var102 = "Warning: useless type declaration `";
-var103 = core__flat___NativeString___to_s_full(var102, 35l, 35l);
-var101 = var103;
-varonce100 = var101;
+if (var23){
+{
+var24 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_nitc__model__MType__as_notnull]))(var_t1); /* as_notnull on <var_t1:nullable MType(MType)>*/
 }
-((struct instance_core__NativeArray*)var99)->values[0]=var101;
-if (likely(varonce104!=NULL)) {
-var105 = varonce104;
+var_t1 = var24;
 } else {
-var106 = "` in literal Array since it can be inferred from the elements type.";
-var107 = core__flat___NativeString___to_s_full(var106, 67l, 67l);
-var105 = var107;
-varonce104 = var105;
 }
-((struct instance_core__NativeArray*)var99)->values[2]=var105;
-} else {
-var99 = varonce98;
-varonce98 = NULL;
 }
+var25 = NEW_core__Array(&type_core__Array__nitc__MType);
+{
+core___core__Array___with_capacity(var25, 2l); /* Direct call array$Array$with_capacity on <var25:Array[MType]>*/
+}
+var_26 = var25;
 {
-var108 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_mtype); /* to_s on <var_mtype:nullable MType(MType)>*/
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t1); /* Direct call array$AbstractArray$push on <var_26:Array[MType]>*/
 }
-((struct instance_core__NativeArray*)var99)->values[1]=var108;
 {
-var109 = ((val*(*)(val* self))(var99->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var99); /* native_to_s on <var99:NativeArray[String]>*/
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_26, var_t2); /* Direct call array$AbstractArray$push on <var_26:Array[MType]>*/
 }
-varonce98 = var99;
 {
-nitc___nitc__ModelBuilder___warning(var91, var_ntype, var95, var109); /* Direct call modelbuilder_base#ModelBuilder#warning on <var91:ModelBuilder>*/
+var27 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_26);
 }
+var_t = var27;
+if (var_t == NULL) {
+var28 = 1; /* is null */
 } else {
+var28 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_t,((val*)NULL)) on <var_t:nullable MType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline typing#AArrayExpr#element_mtype= (self,var_mtype) on <self:AArrayExpr> */
-self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val = var_mtype; /* _element_mtype on <self:AArrayExpr> */
-RET_LABEL110:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_t,var_other) on <var_t:nullable MType(MType)> */
+var33 = var_t == var_other;
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
+}
+}
+var29 = var31;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
+var28 = var29;
 }
-if (likely(varonce111!=NULL)) {
-var112 = varonce111;
+if (var28){
+if (likely(varonce!=NULL)) {
+var34 = varonce;
 } else {
-var113 = "Array";
-var114 = core__flat___NativeString___to_s_full(var113, 5l, 5l);
-var112 = var114;
-varonce111 = var112;
+var35 = "Object";
+var37 = (val*)(6l<<2|1);
+var38 = (val*)(6l<<2|1);
+var39 = (val*)((long)(0)<<2|3);
+var40 = (val*)((long)(0)<<2|3);
+var36 = core__flat___CString___to_s_unsafe(var35, var37, var38, var39, var40);
+var34 = var36;
+varonce = var34;
 }
 {
-var115 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var112);
+var41 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var34);
 }
-var_mclass = var115;
-if (var_mclass == NULL) {
-var116 = 1; /* is null */
+var_c = var41;
+if (var_c == NULL) {
+var42 = 1; /* is null */
 } else {
-var116 = 0; /* arg is null but recv is not */
+var42 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
-var_other12 = ((val*)NULL);
+{ /* Inline kernel$Object$== (var_c,((val*)NULL)) on <var_c:nullable MClass> */
+var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other12) on <var_mclass:nullable MClass(MClass)> */
-var121 = var_mclass == var_other12;
-var119 = var121;
-goto RET_LABEL120;
-RET_LABEL120:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_c,var_other) on <var_c:nullable MClass(MClass)> */
+var47 = var_c == var_other;
+var45 = var47;
+goto RET_LABEL46;
+RET_LABEL46:(void)0;
 }
 }
-var117 = var119;
-goto RET_LABEL118;
-RET_LABEL118:(void)0;
+var43 = var45;
+goto RET_LABEL44;
+RET_LABEL44:(void)0;
 }
-var116 = var117;
+var42 = var43;
 }
-if (var116){
+if (var42){
 goto RET_LABEL;
 } else {
 }
-var122 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-core___core__Array___with_capacity(var122, 1l); /* Direct call array#Array#with_capacity on <var122:Array[MType]>*/
+{ /* Inline model$MClass$mclass_type (var_c) on <var_c:nullable MClass(MClass)> */
+var50 = var_c->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_c:nullable MClass(MClass)> */
+if (unlikely(var50 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_123 = var122;
-{
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_123, var_mtype); /* Direct call array#AbstractArray#push on <var_123:Array[MType]>*/
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
 }
-{
-var124 = nitc___nitc__MClass___get_mtype(var_mclass, var_123);
+var48 = var50;
+RET_LABEL49:(void)0;
 }
-var_array_mtype = var124;
-if (likely(varonce125!=NULL)) {
-var126 = varonce125;
-} else {
-var127 = "with_capacity";
-var128 = core__flat___NativeString___to_s_full(var127, 13l, 13l);
-var126 = var128;
-varonce125 = var126;
 }
+var_t = var48;
 {
-var129 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_array_mtype, var126, 0);
+var51 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_t2);
 }
+if (var51){
 {
-{ /* Inline typing#AArrayExpr#with_capacity_callsite= (self,var129) on <self:AArrayExpr> */
-self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val = var129; /* _with_capacity_callsite on <self:AArrayExpr> */
-RET_LABEL130:(void)0;
+var52 = nitc___nitc__MType___as_nullable(var_t);
 }
-}
-if (likely(varonce131!=NULL)) {
-var132 = varonce131;
+var_t = var52;
 } else {
-var133 = "push";
-var134 = core__flat___NativeString___to_s_full(var133, 4l, 4l);
-var132 = var134;
-varonce131 = var132;
-}
-{
-var135 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_array_mtype, var132, 0);
-}
-{
-{ /* Inline typing#AArrayExpr#push_callsite= (self,var135) on <self:AArrayExpr> */
-self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val = var135; /* _push_callsite on <self:AArrayExpr> */
-RET_LABEL136:(void)0;
 }
+} else {
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var_array_mtype) on <self:AArrayExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_array_mtype; /* _mtype on <self:AArrayExpr> */
-RET_LABEL137:(void)0;
-}
-}
-RET_LABEL:;
+{ /* Inline typing$AExpr$mtype= (self,var_t) on <self:AOrElseExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_t; /* _mtype on <self:AOrElseExpr> */
+RET_LABEL53:(void)0;
 }
-/* method typing#ARangeExpr#init_callsite for (self: ARangeExpr): nullable CallSite */
-val* nitc__typing___ARangeExpr___init_callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val; /* _init_callsite on <self:ARangeExpr> */
-var = var1;
-RET_LABEL:;
-return var;
 }
-/* method typing#ARangeExpr#init_callsite= for (self: ARangeExpr, nullable CallSite) */
-void nitc__typing___ARangeExpr___init_callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val = p0; /* _init_callsite on <self:ARangeExpr> */
 RET_LABEL:;
 }
-/* method typing#ARangeExpr#accept_typing for (self: ARangeExpr, TypeVisitor) */
-void nitc__typing___ARangeExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AOrElseExpr$accept_post_typing for (self: AOrElseExpr, TypeVisitor) */
+void nitc__typing___AOrElseExpr___ANode__accept_post_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-static val* varonce;
-val* var /* : String */;
-char* var1 /* : NativeString */;
-val* var2 /* : String */;
-val* var3 /* : nullable MClass */;
-val* var_discrete_class /* var discrete_class: nullable MClass */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var_t1 /* var t1: nullable MType */;
 short int var4 /* : Bool */;
 short int var5 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var7 /* : Bool */;
 short int var9 /* : Bool */;
-val* var10 /* : MClassDef */;
-val* var12 /* : MClassDef */;
-val* var13 /* : MClassType */;
-val* var15 /* : MClassType */;
-val* var_discrete_type /* var discrete_type: MClassType */;
-val* var16 /* : AExpr */;
-val* var18 /* : AExpr */;
-val* var19 /* : nullable MType */;
-val* var_t1 /* var t1: nullable MType */;
-val* var20 /* : AExpr */;
-val* var22 /* : AExpr */;
-val* var23 /* : nullable MType */;
-val* var_t2 /* var t2: nullable MType */;
-short int var24 /* : Bool */;
-short int var25 /* : Bool */;
-short int var26 /* : Bool */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var31 /* : Bool */;
-short int var32 /* : Bool */;
-short int var34 /* : Bool */;
-short int var36 /* : Bool */;
-static val* varonce37;
-val* var38 /* : String */;
-char* var39 /* : NativeString */;
-val* var40 /* : String */;
-val* var41 /* : nullable MClass */;
-val* var_mclass /* var mclass: nullable MClass */;
-short int var42 /* : Bool */;
-short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-short int var47 /* : Bool */;
-short int var48 /* : Bool */;
-val* var49 /* : Array[MType] */;
-val* var_50 /* var : Array[MType] */;
-val* var51 /* : MClassType */;
-val* var_mtype /* var mtype: nullable Object */;
-short int var52 /* : Bool */;
-val* var53 /* : Array[MType] */;
-val* var_54 /* var : Array[MType] */;
-val* var55 /* : MClassType */;
-val* var57 /* : NativeArray[String] */;
-static val* varonce56;
-static val* varonce58;
-val* var59 /* : String */;
-char* var60 /* : NativeString */;
-val* var61 /* : String */;
-static val* varonce62;
-val* var63 /* : String */;
-char* var64 /* : NativeString */;
-val* var65 /* : String */;
-static val* varonce66;
-val* var67 /* : String */;
-char* var68 /* : NativeString */;
-val* var69 /* : String */;
-val* var70 /* : String */;
-val* var71 /* : String */;
-val* var72 /* : String */;
-short int var74 /* : Bool */;
-int cltype;
-int idtype;
-static val* varonce75;
-val* var76 /* : String */;
-char* var77 /* : NativeString */;
-val* var78 /* : String */;
-val* var79 /* : nullable CallSite */;
-val* var_callsite /* var callsite: nullable Object */;
-short int var80 /* : Bool */;
-int cltype81;
-int idtype82;
-static val* varonce83;
-val* var84 /* : String */;
-char* var85 /* : NativeString */;
-val* var86 /* : String */;
-val* var87 /* : nullable CallSite */;
+val* var10 /* : AExpr */;
+val* var12 /* : AExpr */;
+short int var13 /* : Bool */;
 var_v = p0;
-if (likely(varonce!=NULL)) {
-var = varonce;
-} else {
-var1 = "Discrete";
-var2 = core__flat___NativeString___to_s_full(var1, 8l, 8l);
+{
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AOrElseExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
+fatal_exit(1);
+}
 var = var2;
-varonce = var;
+RET_LABEL1:(void)0;
+}
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+var3 = ((val*(*)(val* self))(var->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var); /* mtype on <var:AExpr>*/
 }
-var_discrete_class = var3;
-if (var_discrete_class == NULL) {
+var_t1 = var3;
+if (var_t1 == NULL) {
 var4 = 1; /* is null */
 } else {
 var4 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_discrete_class,((val*)NULL)) on <var_discrete_class:nullable MClass> */
+{ /* Inline kernel$Object$== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_discrete_class,var_other) on <var_discrete_class:nullable MClass(MClass)> */
-var9 = var_discrete_class == var_other;
+{ /* Inline kernel$Object$is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
+var9 = var_t1 == var_other;
 var7 = var9;
 goto RET_LABEL8;
 RET_LABEL8:(void)0;
@@ -5667,13 +5752,15 @@ var4 = var5;
 if (var4){
 goto RET_LABEL;
 } else {
-}
 {
-{ /* Inline model#MClass#intro (var_discrete_class) on <var_discrete_class:nullable MClass(MClass)> */
-var12 = var_discrete_class->attrs[COLOR_nitc__model__MClass___intro].val; /* _intro on <var_discrete_class:nullable MClass(MClass)> */
+{ /* Inline parser_nodes$ABinBoolExpr$n_expr (self) on <self:AOrElseExpr> */
+var12 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
 if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _intro");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 483);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2131);
 fatal_exit(1);
 }
 var10 = var12;
@@ -5681,3524 +5768,3937 @@ RET_LABEL11:(void)0;
 }
 }
 {
-{ /* Inline model#MClassDef#bound_mtype (var10) on <var10:MClassDef> */
-var15 = var10->attrs[COLOR_nitc__model__MClassDef___bound_mtype].val; /* _bound_mtype on <var10:MClassDef> */
-if (unlikely(var15 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _bound_mtype");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 579);
-fatal_exit(1);
+var13 = nitc__typing___nitc__typing__TypeVisitor___check_can_be_null(var_v, var10, var_t1);
 }
-var13 = var15;
-RET_LABEL14:(void)0;
 }
+RET_LABEL:;
 }
-var_discrete_type = var13;
+/* method typing$ATrueExpr$accept_typing for (self: ATrueExpr, TypeVisitor) */
+void nitc__typing___ATrueExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#ARangeExpr#n_expr (self) on <self:ARangeExpr> */
-var18 = self->attrs[COLOR_nitc__parser_nodes__ARangeExpr___n_expr].val; /* _n_expr on <self:ARangeExpr> */
-if (unlikely(var18 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2421);
-fatal_exit(1);
+var = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-var16 = var18;
-RET_LABEL17:(void)0;
+{
+{ /* Inline typing$AExpr$mtype= (self,var) on <self:ATrueExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var; /* _mtype on <self:ATrueExpr> */
+RET_LABEL1:(void)0;
 }
 }
+RET_LABEL:;
+}
+/* method typing$AFalseExpr$accept_typing for (self: AFalseExpr, TypeVisitor) */
+void nitc__typing___AFalseExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : nullable MType */;
+var_v = p0;
 {
-var19 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var16, var_discrete_type);
+var = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-var_t1 = var19;
 {
-{ /* Inline parser_nodes#ARangeExpr#n_expr2 (self) on <self:ARangeExpr> */
-var22 = self->attrs[COLOR_nitc__parser_nodes__ARangeExpr___n_expr2].val; /* _n_expr2 on <self:ARangeExpr> */
-if (unlikely(var22 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2427);
-fatal_exit(1);
+{ /* Inline typing$AExpr$mtype= (self,var) on <self:AFalseExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var; /* _mtype on <self:AFalseExpr> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method typing$AIntegerExpr$accept_typing for (self: AIntegerExpr, TypeVisitor) */
+void nitc__typing___AIntegerExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var_mclass /* var mclass: nullable MClass */;
+val* var /* : nullable Numeric */;
+val* var2 /* : nullable Numeric */;
+short int var3 /* : Bool */;
+int cltype;
+int idtype;
+static val* varonce;
+val* var4 /* : String */;
+char* var5 /* : CString */;
+val* var6 /* : String */;
+val* var7 /* : nullable Int */;
+val* var8 /* : nullable Int */;
+val* var9 /* : nullable Bool */;
+val* var10 /* : nullable Bool */;
+val* var11 /* : nullable MClass */;
+val* var12 /* : nullable Numeric */;
+val* var14 /* : nullable Numeric */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+static val* varonce18;
+val* var19 /* : String */;
+char* var20 /* : CString */;
+val* var21 /* : String */;
+val* var22 /* : nullable Int */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Bool */;
+val* var25 /* : nullable Bool */;
+val* var26 /* : nullable MClass */;
+val* var27 /* : nullable Numeric */;
+val* var29 /* : nullable Numeric */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+static val* varonce33;
+val* var34 /* : String */;
+char* var35 /* : CString */;
+val* var36 /* : String */;
+val* var37 /* : nullable Int */;
+val* var38 /* : nullable Int */;
+val* var39 /* : nullable Bool */;
+val* var40 /* : nullable Bool */;
+val* var41 /* : nullable MClass */;
+val* var42 /* : nullable Numeric */;
+val* var44 /* : nullable Numeric */;
+short int var45 /* : Bool */;
+int cltype46;
+int idtype47;
+static val* varonce48;
+val* var49 /* : String */;
+char* var50 /* : CString */;
+val* var51 /* : String */;
+val* var52 /* : nullable Int */;
+val* var53 /* : nullable Int */;
+val* var54 /* : nullable Bool */;
+val* var55 /* : nullable Bool */;
+val* var56 /* : nullable MClass */;
+val* var57 /* : nullable Numeric */;
+val* var59 /* : nullable Numeric */;
+short int var60 /* : Bool */;
+int cltype61;
+int idtype62;
+static val* varonce63;
+val* var64 /* : String */;
+char* var65 /* : CString */;
+val* var66 /* : String */;
+val* var67 /* : nullable Int */;
+val* var68 /* : nullable Int */;
+val* var69 /* : nullable Bool */;
+val* var70 /* : nullable Bool */;
+val* var71 /* : nullable MClass */;
+val* var72 /* : nullable Numeric */;
+val* var74 /* : nullable Numeric */;
+short int var75 /* : Bool */;
+int cltype76;
+int idtype77;
+static val* varonce78;
+val* var79 /* : String */;
+char* var80 /* : CString */;
+val* var81 /* : String */;
+val* var82 /* : nullable Int */;
+val* var83 /* : nullable Int */;
+val* var84 /* : nullable Bool */;
+val* var85 /* : nullable Bool */;
+val* var86 /* : nullable MClass */;
+val* var87 /* : nullable Numeric */;
+val* var89 /* : nullable Numeric */;
+short int var90 /* : Bool */;
+int cltype91;
+int idtype92;
+static val* varonce93;
+val* var94 /* : String */;
+char* var95 /* : CString */;
+val* var96 /* : String */;
+val* var97 /* : nullable Int */;
+val* var98 /* : nullable Int */;
+val* var99 /* : nullable Bool */;
+val* var100 /* : nullable Bool */;
+val* var101 /* : nullable MClass */;
+short int var102 /* : Bool */;
+short int var103 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var105 /* : Bool */;
+short int var107 /* : Bool */;
+val* var108 /* : MClassType */;
+val* var110 /* : MClassType */;
+var_v = p0;
+var_mclass = ((val*)NULL);
+{
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var2 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var = var2;
+RET_LABEL1:(void)0;
+}
+}
+/* <var:nullable Numeric> isa Byte */
+cltype = type_core__Byte.color;
+idtype = type_core__Byte.id;
+if(var == NULL) {
+var3 = 0;
+} else {
+if(cltype >= (((long)var&3)?type_info[((long)var&3)]:var->type)->table_size) {
+var3 = 0;
+} else {
+var3 = (((long)var&3)?type_info[((long)var&3)]:var->type)->type_table[cltype] == idtype;
 }
-var20 = var22;
-RET_LABEL21:(void)0;
 }
+if (var3){
+if (likely(varonce!=NULL)) {
+var4 = varonce;
+} else {
+var5 = "Byte";
+var7 = (val*)(4l<<2|1);
+var8 = (val*)(4l<<2|1);
+var9 = (val*)((long)(0)<<2|3);
+var10 = (val*)((long)(0)<<2|3);
+var6 = core__flat___CString___to_s_unsafe(var5, var7, var8, var9, var10);
+var4 = var6;
+varonce = var4;
 }
 {
-var23 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var20, var_discrete_type);
+var11 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var4);
 }
-var_t2 = var23;
-if (var_t1 == NULL) {
-var25 = 1; /* is null */
+var_mclass = var11;
 } else {
-var25 = 0; /* arg is null but recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
-var30 = var_t1 == var_other;
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
-}
-}
-var26 = var28;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var14 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var12 = var14;
+RET_LABEL13:(void)0;
 }
-var25 = var26;
 }
-var_ = var25;
-if (var25){
-var24 = var_;
+/* <var12:nullable Numeric> isa Int */
+cltype16 = type_core__Int.color;
+idtype17 = type_core__Int.id;
+if(var12 == NULL) {
+var15 = 0;
 } else {
-if (var_t2 == NULL) {
-var31 = 1; /* is null */
+if(cltype16 >= (((long)var12&3)?type_info[((long)var12&3)]:var12->type)->table_size) {
+var15 = 0;
 } else {
-var31 = 0; /* arg is null but recv is not */
+var15 = (((long)var12&3)?type_info[((long)var12&3)]:var12->type)->type_table[cltype16] == idtype17;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
-var36 = var_t2 == var_other;
-var34 = var36;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
 }
+if (var15){
+if (likely(varonce18!=NULL)) {
+var19 = varonce18;
+} else {
+var20 = "Int";
+var22 = (val*)(3l<<2|1);
+var23 = (val*)(3l<<2|1);
+var24 = (val*)((long)(0)<<2|3);
+var25 = (val*)((long)(0)<<2|3);
+var21 = core__flat___CString___to_s_unsafe(var20, var22, var23, var24, var25);
+var19 = var21;
+varonce18 = var19;
 }
-var32 = var34;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+{
+var26 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var19);
 }
-var31 = var32;
+var_mclass = var26;
+} else {
+{
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var29 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var27 = var29;
+RET_LABEL28:(void)0;
 }
-var24 = var31;
 }
-if (var24){
-goto RET_LABEL;
+/* <var27:nullable Numeric> isa Int8 */
+cltype31 = type_core__Int8.color;
+idtype32 = type_core__Int8.id;
+if(var27 == NULL) {
+var30 = 0;
 } else {
+if(cltype31 >= (((long)var27&3)?type_info[((long)var27&3)]:var27->type)->table_size) {
+var30 = 0;
+} else {
+var30 = (((long)var27&3)?type_info[((long)var27&3)]:var27->type)->type_table[cltype31] == idtype32;
+}
 }
-if (likely(varonce37!=NULL)) {
-var38 = varonce37;
+if (var30){
+if (likely(varonce33!=NULL)) {
+var34 = varonce33;
 } else {
-var39 = "Range";
-var40 = core__flat___NativeString___to_s_full(var39, 5l, 5l);
-var38 = var40;
-varonce37 = var38;
+var35 = "Int8";
+var37 = (val*)(4l<<2|1);
+var38 = (val*)(4l<<2|1);
+var39 = (val*)((long)(0)<<2|3);
+var40 = (val*)((long)(0)<<2|3);
+var36 = core__flat___CString___to_s_unsafe(var35, var37, var38, var39, var40);
+var34 = var36;
+varonce33 = var34;
 }
 {
-var41 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var38);
+var41 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var34);
 }
 var_mclass = var41;
-if (var_mclass == NULL) {
-var42 = 1; /* is null */
 } else {
-var42 = 0; /* arg is null but recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
-var47 = var_mclass == var_other;
-var45 = var47;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var44 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var42 = var44;
+RET_LABEL43:(void)0;
 }
 }
-var43 = var45;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
+/* <var42:nullable Numeric> isa Int16 */
+cltype46 = type_core__Int16.color;
+idtype47 = type_core__Int16.id;
+if(var42 == NULL) {
+var45 = 0;
+} else {
+if(cltype46 >= (((long)var42&3)?type_info[((long)var42&3)]:var42->type)->table_size) {
+var45 = 0;
+} else {
+var45 = (((long)var42&3)?type_info[((long)var42&3)]:var42->type)->type_table[cltype46] == idtype47;
 }
-var42 = var43;
 }
-if (var42){
-goto RET_LABEL;
+if (var45){
+if (likely(varonce48!=NULL)) {
+var49 = varonce48;
 } else {
+var50 = "Int16";
+var52 = (val*)(5l<<2|1);
+var53 = (val*)(5l<<2|1);
+var54 = (val*)((long)(0)<<2|3);
+var55 = (val*)((long)(0)<<2|3);
+var51 = core__flat___CString___to_s_unsafe(var50, var52, var53, var54, var55);
+var49 = var51;
+varonce48 = var49;
 }
 {
-var48 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_t1, var_t2);
-}
-if (var48){
-var49 = NEW_core__Array(&type_core__Array__nitc__MType);
-{
-core___core__Array___with_capacity(var49, 1l); /* Direct call array#Array#with_capacity on <var49:Array[MType]>*/
+var56 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var49);
 }
-var_50 = var49;
+var_mclass = var56;
+} else {
 {
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_50, var_t2); /* Direct call array#AbstractArray#push on <var_50:Array[MType]>*/
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var59 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var57 = var59;
+RET_LABEL58:(void)0;
 }
-{
-var51 = nitc___nitc__MClass___get_mtype(var_mclass, var_50);
 }
-var_mtype = var51;
+/* <var57:nullable Numeric> isa UInt16 */
+cltype61 = type_core__UInt16.color;
+idtype62 = type_core__UInt16.id;
+if(var57 == NULL) {
+var60 = 0;
 } else {
-{
-var52 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_t2, var_t1);
+if(cltype61 >= (((long)var57&3)?type_info[((long)var57&3)]:var57->type)->table_size) {
+var60 = 0;
+} else {
+var60 = (((long)var57&3)?type_info[((long)var57&3)]:var57->type)->type_table[cltype61] == idtype62;
 }
-if (var52){
-var53 = NEW_core__Array(&type_core__Array__nitc__MType);
-{
-core___core__Array___with_capacity(var53, 1l); /* Direct call array#Array#with_capacity on <var53:Array[MType]>*/
 }
-var_54 = var53;
+if (var60){
+if (likely(varonce63!=NULL)) {
+var64 = varonce63;
+} else {
+var65 = "UInt16";
+var67 = (val*)(6l<<2|1);
+var68 = (val*)(6l<<2|1);
+var69 = (val*)((long)(0)<<2|3);
+var70 = (val*)((long)(0)<<2|3);
+var66 = core__flat___CString___to_s_unsafe(var65, var67, var68, var69, var70);
+var64 = var66;
+varonce63 = var64;
+}
 {
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_54, var_t1); /* Direct call array#AbstractArray#push on <var_54:Array[MType]>*/
+var71 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var64);
 }
+var_mclass = var71;
+} else {
 {
-var55 = nitc___nitc__MClass___get_mtype(var_mclass, var_54);
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var74 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var72 = var74;
+RET_LABEL73:(void)0;
+}
 }
-var_mtype = var55;
+/* <var72:nullable Numeric> isa Int32 */
+cltype76 = type_core__Int32.color;
+idtype77 = type_core__Int32.id;
+if(var72 == NULL) {
+var75 = 0;
 } else {
-if (unlikely(varonce56==NULL)) {
-var57 = NEW_core__NativeArray(5l, &type_core__NativeArray__core__String);
-if (likely(varonce58!=NULL)) {
-var59 = varonce58;
+if(cltype76 >= (((long)var72&3)?type_info[((long)var72&3)]:var72->type)->table_size) {
+var75 = 0;
 } else {
-var60 = "Type Error: cannot create range: `";
-var61 = core__flat___NativeString___to_s_full(var60, 34l, 34l);
-var59 = var61;
-varonce58 = var59;
+var75 = (((long)var72&3)?type_info[((long)var72&3)]:var72->type)->type_table[cltype76] == idtype77;
 }
-((struct instance_core__NativeArray*)var57)->values[0]=var59;
-if (likely(varonce62!=NULL)) {
-var63 = varonce62;
+}
+if (var75){
+if (likely(varonce78!=NULL)) {
+var79 = varonce78;
 } else {
-var64 = "` vs `";
-var65 = core__flat___NativeString___to_s_full(var64, 6l, 6l);
-var63 = var65;
-varonce62 = var63;
+var80 = "Int32";
+var82 = (val*)(5l<<2|1);
+var83 = (val*)(5l<<2|1);
+var84 = (val*)((long)(0)<<2|3);
+var85 = (val*)((long)(0)<<2|3);
+var81 = core__flat___CString___to_s_unsafe(var80, var82, var83, var84, var85);
+var79 = var81;
+varonce78 = var79;
 }
-((struct instance_core__NativeArray*)var57)->values[2]=var63;
-if (likely(varonce66!=NULL)) {
-var67 = varonce66;
+{
+var86 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var79);
+}
+var_mclass = var86;
 } else {
-var68 = "`.";
-var69 = core__flat___NativeString___to_s_full(var68, 2l, 2l);
-var67 = var69;
-varonce66 = var67;
+{
+{ /* Inline literal$AIntegerExpr$value (self) on <self:AIntegerExpr> */
+var89 = self->attrs[COLOR_nitc__literal__AIntegerExpr___value].val; /* _value on <self:AIntegerExpr> */
+var87 = var89;
+RET_LABEL88:(void)0;
+}
 }
-((struct instance_core__NativeArray*)var57)->values[4]=var67;
+/* <var87:nullable Numeric> isa UInt32 */
+cltype91 = type_core__UInt32.color;
+idtype92 = type_core__UInt32.id;
+if(var87 == NULL) {
+var90 = 0;
 } else {
-var57 = varonce56;
-varonce56 = NULL;
+if(cltype91 >= (((long)var87&3)?type_info[((long)var87&3)]:var87->type)->table_size) {
+var90 = 0;
+} else {
+var90 = (((long)var87&3)?type_info[((long)var87&3)]:var87->type)->type_table[cltype91] == idtype92;
 }
-{
-var70 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t1); /* to_s on <var_t1:nullable MType(MType)>*/
 }
-((struct instance_core__NativeArray*)var57)->values[1]=var70;
-{
-var71 = ((val*(*)(val* self))(var_t2->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t2); /* to_s on <var_t2:nullable MType(MType)>*/
+if (var90){
+if (likely(varonce93!=NULL)) {
+var94 = varonce93;
+} else {
+var95 = "UInt32";
+var97 = (val*)(6l<<2|1);
+var98 = (val*)(6l<<2|1);
+var99 = (val*)((long)(0)<<2|3);
+var100 = (val*)((long)(0)<<2|3);
+var96 = core__flat___CString___to_s_unsafe(var95, var97, var98, var99, var100);
+var94 = var96;
+varonce93 = var94;
 }
-((struct instance_core__NativeArray*)var57)->values[3]=var71;
 {
-var72 = ((val*(*)(val* self))(var57->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var57); /* native_to_s on <var57:NativeArray[String]>*/
+var101 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var94);
 }
-varonce56 = var57;
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var72); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+var_mclass = var101;
+} else {
 }
-goto RET_LABEL;
 }
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var_mtype) on <self:ARangeExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:ARangeExpr> */
-RET_LABEL73:(void)0;
 }
 }
-/* <self:ARangeExpr> isa ACrangeExpr */
-cltype = type_nitc__ACrangeExpr.color;
-idtype = type_nitc__ACrangeExpr.id;
-if(cltype >= self->type->table_size) {
-var74 = 0;
-} else {
-var74 = self->type->type_table[cltype] == idtype;
 }
-if (var74){
-if (likely(varonce75!=NULL)) {
-var76 = varonce75;
+}
+if (var_mclass == NULL) {
+var102 = 1; /* is null */
 } else {
-var77 = "init";
-var78 = core__flat___NativeString___to_s_full(var77, 4l, 4l);
-var76 = var78;
-varonce75 = var76;
+var102 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+var_other = ((val*)NULL);
 {
-var79 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var76, 0);
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var107 = var_mclass == var_other;
+var105 = var107;
+goto RET_LABEL106;
+RET_LABEL106:(void)0;
 }
-var_callsite = var79;
-} else {
-/* <self:ARangeExpr> isa AOrangeExpr */
-cltype81 = type_nitc__AOrangeExpr.color;
-idtype82 = type_nitc__AOrangeExpr.id;
-if(cltype81 >= self->type->table_size) {
-var80 = 0;
-} else {
-var80 = self->type->type_table[cltype81] == idtype82;
 }
-if (var80){
-if (likely(varonce83!=NULL)) {
-var84 = varonce83;
+var103 = var105;
+goto RET_LABEL104;
+RET_LABEL104:(void)0;
+}
+var102 = var103;
+}
+if (var102){
+goto RET_LABEL;
 } else {
-var85 = "without_last";
-var86 = core__flat___NativeString___to_s_full(var85, 12l, 12l);
-var84 = var86;
-varonce83 = var84;
 }
 {
-var87 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var84, 0);
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var110 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var110 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_callsite = var87;
-} else {
-PRINT_ERROR("Runtime error: %s", "Aborted");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1588);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
+var108 = var110;
+RET_LABEL109:(void)0;
+}
 }
 {
-{ /* Inline typing#ARangeExpr#init_callsite= (self,var_callsite) on <self:ARangeExpr> */
-self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val = var_callsite; /* _init_callsite on <self:ARangeExpr> */
-RET_LABEL88:(void)0;
+{ /* Inline typing$AExpr$mtype= (self,var108) on <self:AIntegerExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var108; /* _mtype on <self:AIntegerExpr> */
+RET_LABEL111:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method typing#ANullExpr#accept_typing for (self: ANullExpr, TypeVisitor) */
-void nitc__typing___ANullExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AFloatExpr$accept_typing for (self: AFloatExpr, TypeVisitor) */
+void nitc__typing___AFloatExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : MModule */;
-val* var2 /* : MModule */;
-val* var3 /* : Model */;
-val* var5 /* : Model */;
-val* var6 /* : MNullType */;
-val* var8 /* : MNullType */;
+static val* varonce;
+val* var /* : String */;
+char* var1 /* : CString */;
+val* var2 /* : String */;
+val* var3 /* : nullable Int */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Bool */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable MClass */;
+val* var_mclass /* var mclass: nullable MClass */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
+val* var14 /* : MClassType */;
+val* var16 /* : MClassType */;
 var_v = p0;
-{
-{ /* Inline typing#TypeVisitor#mmodule (var_v) on <var_v:TypeVisitor> */
-var2 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
-fatal_exit(1);
-}
+if (likely(varonce!=NULL)) {
+var = varonce;
+} else {
+var1 = "Float";
+var3 = (val*)(5l<<2|1);
+var4 = (val*)(5l<<2|1);
+var5 = (val*)((long)(0)<<2|3);
+var6 = (val*)((long)(0)<<2|3);
+var2 = core__flat___CString___to_s_unsafe(var1, var3, var4, var5, var6);
 var = var2;
-RET_LABEL1:(void)0;
+varonce = var;
 }
+{
+var7 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
+}
+var_mclass = var7;
+if (var_mclass == NULL) {
+var8 = 1; /* is null */
+} else {
+var8 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+var_other = ((val*)NULL);
 {
-{ /* Inline mmodule#MModule#model (var) on <var:MModule> */
-var5 = var->attrs[COLOR_nitc__mmodule__MModule___model].val; /* _model on <var:MModule> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _model");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__mmodule, 78);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var13 = var_mclass == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-var3 = var5;
-RET_LABEL4:(void)0;
 }
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
+}
+var8 = var9;
+}
+if (var8){
+goto RET_LABEL;
+} else {
 }
 {
-{ /* Inline model#Model#null_type (var3) on <var3:Model> */
-var8 = var3->attrs[COLOR_nitc__model__Model___null_type].val; /* _null_type on <var3:Model> */
-if (unlikely(var8 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _null_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 94);
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var16 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var16 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var6 = var8;
-RET_LABEL7:(void)0;
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var6) on <self:ANullExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var6; /* _mtype on <self:ANullExpr> */
-RET_LABEL9:(void)0;
-}
-}
-RET_LABEL:;
+{ /* Inline typing$AExpr$mtype= (self,var14) on <self:AFloatExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var14; /* _mtype on <self:AFloatExpr> */
+RET_LABEL17:(void)0;
 }
-/* method typing#AIsaExpr#cast_type for (self: AIsaExpr): nullable MType */
-val* nitc__typing___AIsaExpr___cast_type(val* self) {
-val* var /* : nullable MType */;
-val* var1 /* : nullable MType */;
-var1 = self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val; /* _cast_type on <self:AIsaExpr> */
-var = var1;
-RET_LABEL:;
-return var;
 }
-/* method typing#AIsaExpr#cast_type= for (self: AIsaExpr, nullable MType) */
-void nitc__typing___AIsaExpr___cast_type_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val = p0; /* _cast_type on <self:AIsaExpr> */
 RET_LABEL:;
 }
-/* method typing#AIsaExpr#accept_typing for (self: AIsaExpr, TypeVisitor) */
-void nitc__typing___AIsaExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$ACharExpr$accept_typing for (self: ACharExpr, TypeVisitor) */
+void nitc__typing___ACharExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AType */;
-val* var6 /* : AType */;
-val* var7 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-val* var9 /* : AExpr */;
-val* var11 /* : AExpr */;
-val* var12 /* : nullable Variable */;
-val* var_variable /* var variable: nullable Variable */;
-short int var13 /* : Bool */;
-short int var14 /* : Bool */;
+val* var_mclass /* var mclass: nullable MClass */;
+short int var /* : Bool */;
+static val* varonce;
+val* var1 /* : String */;
+char* var2 /* : CString */;
+val* var3 /* : String */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable Bool */;
+val* var8 /* : nullable MClass */;
+short int var9 /* : Bool */;
+static val* varonce10;
+val* var11 /* : String */;
+char* var12 /* : CString */;
+val* var13 /* : String */;
+val* var14 /* : nullable Int */;
+val* var15 /* : nullable Int */;
+val* var16 /* : nullable Bool */;
+val* var17 /* : nullable Bool */;
+val* var18 /* : nullable MClass */;
+static val* varonce19;
+val* var20 /* : String */;
+char* var21 /* : CString */;
+val* var22 /* : String */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Int */;
+val* var25 /* : nullable Bool */;
+val* var26 /* : nullable Bool */;
+val* var27 /* : nullable MClass */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
 val* var_other /* var other: nullable Object */;
-short int var16 /* : Bool */;
-short int var17 /* : Bool */;
-val* var18 /* : nullable FlowContext */;
-val* var20 /* : nullable FlowContext */;
-val* var21 /* : FlowContext */;
-val* var23 /* : FlowContext */;
-val* var24 /* : nullable MType */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+val* var34 /* : MClassType */;
+val* var36 /* : MClassType */;
 var_v = p0;
+var_mclass = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AIsaExpr#n_expr (self) on <self:AIsaExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2153);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
+var = nitc__literal___ACharExpr___is_ascii(self);
 }
+if (var){
+if (likely(varonce!=NULL)) {
+var1 = varonce;
+} else {
+var2 = "Byte";
+var4 = (val*)(4l<<2|1);
+var5 = (val*)(4l<<2|1);
+var6 = (val*)((long)(0)<<2|3);
+var7 = (val*)((long)(0)<<2|3);
+var3 = core__flat___CString___to_s_unsafe(var2, var4, var5, var6, var7);
+var1 = var3;
+varonce = var1;
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+var8 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var1);
 }
+var_mclass = var8;
+} else {
 {
-{ /* Inline parser_nodes#AIsaExpr#n_type (self) on <self:AIsaExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2159);
-fatal_exit(1);
-}
-var4 = var6;
-RET_LABEL5:(void)0;
-}
+var9 = nitc__literal___ACharExpr___is_code_point(self);
 }
-{
-var7 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var4);
+if (var9){
+if (likely(varonce10!=NULL)) {
+var11 = varonce10;
+} else {
+var12 = "Int";
+var14 = (val*)(3l<<2|1);
+var15 = (val*)(3l<<2|1);
+var16 = (val*)((long)(0)<<2|3);
+var17 = (val*)((long)(0)<<2|3);
+var13 = core__flat___CString___to_s_unsafe(var12, var14, var15, var16, var17);
+var11 = var13;
+varonce10 = var11;
 }
-var_mtype = var7;
 {
-{ /* Inline typing#AIsaExpr#cast_type= (self,var_mtype) on <self:AIsaExpr> */
-self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val = var_mtype; /* _cast_type on <self:AIsaExpr> */
-RET_LABEL8:(void)0;
+var18 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var11);
 }
+var_mclass = var18;
+} else {
+if (likely(varonce19!=NULL)) {
+var20 = varonce19;
+} else {
+var21 = "Char";
+var23 = (val*)(4l<<2|1);
+var24 = (val*)(4l<<2|1);
+var25 = (val*)((long)(0)<<2|3);
+var26 = (val*)((long)(0)<<2|3);
+var22 = core__flat___CString___to_s_unsafe(var21, var23, var24, var25, var26);
+var20 = var22;
+varonce19 = var20;
 }
 {
-{ /* Inline parser_nodes#AIsaExpr#n_expr (self) on <self:AIsaExpr> */
-var11 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2153);
-fatal_exit(1);
-}
-var9 = var11;
-RET_LABEL10:(void)0;
+var27 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var20);
 }
+var_mclass = var27;
 }
-{
-var12 = ((val*(*)(val* self))(var9->class->vft[COLOR_nitc__typing__AExpr__its_variable]))(var9); /* its_variable on <var9:AExpr>*/
 }
-var_variable = var12;
-if (var_variable == NULL) {
-var13 = 0; /* is null */
+if (var_mclass == NULL) {
+var28 = 1; /* is null */
 } else {
-var13 = 1; /* arg is null and recv is not */
+var28 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
 var_other = ((val*)NULL);
 {
-var16 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
-}
-var17 = !var16;
-var14 = var17;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var33 = var_mclass == var_other;
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
-var13 = var14;
 }
-if (var13){
-{
-{ /* Inline flow#AExpr#after_flow_context (self) on <self:AIsaExpr> */
-var20 = self->attrs[COLOR_nitc__flow__AExpr___after_flow_context].val; /* _after_flow_context on <self:AIsaExpr> */
-var18 = var20;
-RET_LABEL19:(void)0;
+var29 = var31;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
+var28 = var29;
 }
-if (var18 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1619);
-fatal_exit(1);
+if (var28){
+goto RET_LABEL;
 } else {
-{ /* Inline flow#FlowContext#when_true (var18) on <var18:nullable FlowContext> */
-if (unlikely(var18 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__flow, 225);
-fatal_exit(1);
 }
-var23 = var18->attrs[COLOR_nitc__flow__FlowContext___when_true].val; /* _when_true on <var18:nullable FlowContext> */
-if (unlikely(var23 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _when_true");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__flow, 225);
+{
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var36 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var36 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var21 = var23;
-RET_LABEL22:(void)0;
+var34 = var36;
+RET_LABEL35:(void)0;
 }
 }
 {
-nitc__typing___FlowContext___set_var(var21, var_v, var_variable, var_mtype); /* Direct call typing#FlowContext#set_var on <var21:FlowContext>*/
-}
-} else {
+{ /* Inline typing$AExpr$mtype= (self,var34) on <self:ACharExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var34; /* _mtype on <self:ACharExpr> */
+RET_LABEL37:(void)0;
 }
-{
-var24 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var24) on <self:AIsaExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var24; /* _mtype on <self:AIsaExpr> */
-RET_LABEL25:(void)0;
+RET_LABEL:;
 }
+/* method typing$AugmentedStringFormExpr$to_re for (self: AugmentedStringFormExpr): nullable CallSite */
+val* nitc__typing___AugmentedStringFormExpr___to_re(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_re].val; /* _to_re on <self:AugmentedStringFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AugmentedStringFormExpr$to_re= for (self: AugmentedStringFormExpr, nullable CallSite) */
+void nitc__typing___AugmentedStringFormExpr___to_re_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_re].val = p0; /* _to_re on <self:AugmentedStringFormExpr> */
 RET_LABEL:;
 }
-/* method typing#AIsaExpr#accept_post_typing for (self: AIsaExpr, TypeVisitor) */
-void nitc__typing___AIsaExpr___ANode__accept_post_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : AType */;
-val* var5 /* : AType */;
-val* var6 /* : nullable MType */;
-var_v = p0;
-{
-{ /* Inline parser_nodes#AIsaExpr#n_expr (self) on <self:AIsaExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2153);
-fatal_exit(1);
+/* method typing$AugmentedStringFormExpr$ignore_case for (self: AugmentedStringFormExpr): nullable CallSite */
+val* nitc__typing___AugmentedStringFormExpr___ignore_case(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___ignore_case].val; /* _ignore_case on <self:AugmentedStringFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var = var2;
-RET_LABEL1:(void)0;
+/* method typing$AugmentedStringFormExpr$ignore_case= for (self: AugmentedStringFormExpr, nullable CallSite) */
+void nitc__typing___AugmentedStringFormExpr___ignore_case_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___ignore_case].val = p0; /* _ignore_case on <self:AugmentedStringFormExpr> */
+RET_LABEL:;
 }
+/* method typing$AugmentedStringFormExpr$newline for (self: AugmentedStringFormExpr): nullable CallSite */
+val* nitc__typing___AugmentedStringFormExpr___newline(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___newline].val; /* _newline on <self:AugmentedStringFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-{ /* Inline parser_nodes#AIsaExpr#n_type (self) on <self:AIsaExpr> */
-var5 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2159);
-fatal_exit(1);
+/* method typing$AugmentedStringFormExpr$newline= for (self: AugmentedStringFormExpr, nullable CallSite) */
+void nitc__typing___AugmentedStringFormExpr___newline_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___newline].val = p0; /* _newline on <self:AugmentedStringFormExpr> */
+RET_LABEL:;
 }
-var3 = var5;
-RET_LABEL4:(void)0;
+/* method typing$AugmentedStringFormExpr$extended for (self: AugmentedStringFormExpr): nullable CallSite */
+val* nitc__typing___AugmentedStringFormExpr___extended(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___extended].val; /* _extended on <self:AugmentedStringFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AugmentedStringFormExpr$extended= for (self: AugmentedStringFormExpr, nullable CallSite) */
+void nitc__typing___AugmentedStringFormExpr___extended_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___extended].val = p0; /* _extended on <self:AugmentedStringFormExpr> */
+RET_LABEL:;
 }
-{
-var6 = nitc__typing___nitc__typing__TypeVisitor___check_expr_cast(var_v, self, var, var3);
+/* method typing$AugmentedStringFormExpr$to_bytes_with_copy for (self: AugmentedStringFormExpr): nullable CallSite */
+val* nitc__typing___AugmentedStringFormExpr___to_bytes_with_copy(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_bytes_with_copy].val; /* _to_bytes_with_copy on <self:AugmentedStringFormExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AugmentedStringFormExpr$to_bytes_with_copy= for (self: AugmentedStringFormExpr, nullable CallSite) */
+void nitc__typing___AugmentedStringFormExpr___to_bytes_with_copy_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_bytes_with_copy].val = p0; /* _to_bytes_with_copy on <self:AugmentedStringFormExpr> */
 RET_LABEL:;
 }
-/* method typing#AAsCastExpr#accept_typing for (self: AAsCastExpr, TypeVisitor) */
-void nitc__typing___AAsCastExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AugmentedStringFormExpr$accept_typing for (self: AugmentedStringFormExpr, TypeVisitor) */
+void nitc__typing___AugmentedStringFormExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var4 /* : AType */;
-val* var6 /* : AType */;
-val* var7 /* : nullable MType */;
+static val* varonce;
+val* var /* : String */;
+char* var1 /* : CString */;
+val* var2 /* : String */;
+val* var3 /* : nullable Int */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Bool */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable MClass */;
+val* var_mclass /* var mclass: nullable MClass */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+val* var15 /* : MModule */;
+val* var17 /* : MModule */;
+val* var18 /* : MClassType */;
+static val* varonce19;
+val* var20 /* : String */;
+char* var21 /* : CString */;
+val* var22 /* : String */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Int */;
+val* var25 /* : nullable Bool */;
+val* var26 /* : nullable Bool */;
+val* var27 /* : nullable CallSite */;
+static val* varonce29;
+val* var30 /* : String */;
+char* var31 /* : CString */;
+val* var32 /* : String */;
+val* var33 /* : nullable Int */;
+val* var34 /* : nullable Int */;
+val* var35 /* : nullable Bool */;
+val* var36 /* : nullable Bool */;
+val* var37 /* : nullable MClass */;
+short int var38 /* : Bool */;
+val* var39 /* : MClassType */;
+val* var41 /* : MClassType */;
+static val* varonce42;
+val* var43 /* : String */;
+char* var44 /* : CString */;
+val* var45 /* : String */;
+val* var46 /* : nullable Int */;
+val* var47 /* : nullable Int */;
+val* var48 /* : nullable Bool */;
+val* var49 /* : nullable Bool */;
+val* var50 /* : nullable CallSite */;
+val* var52 /* : String */;
+val* var53 /* : SequenceRead[Char] */;
+val* var_ /* var : SequenceRead[Char] */;
+val* var54 /* : Iterator[nullable Object] */;
+val* var_55 /* var : IndexedIterator[Char] */;
+short int var56 /* : Bool */;
+val* var57 /* : nullable Object */;
+uint32_t var58 /* : Char */;
+uint32_t var_i /* var i: Char */;
+static val* varonce59;
+val* var60 /* : String */;
+char* var61 /* : CString */;
+val* var62 /* : String */;
+val* var63 /* : nullable Int */;
+val* var64 /* : nullable Int */;
+val* var65 /* : nullable Bool */;
+val* var66 /* : nullable Bool */;
+val* var67 /* : nullable MClass */;
+short int var68 /* : Bool */;
+short int var69 /* : Bool */;
+short int var71 /* : Bool */;
+short int var73 /* : Bool */;
+static val* varonce74;
+val* var75 /* : String */;
+char* var76 /* : CString */;
+val* var77 /* : String */;
+val* var78 /* : nullable Int */;
+val* var79 /* : nullable Int */;
+val* var80 /* : nullable Bool */;
+val* var81 /* : nullable Bool */;
+static val* varonce82;
+val* var83 /* : String */;
+char* var84 /* : CString */;
+val* var85 /* : String */;
+val* var86 /* : nullable Int */;
+val* var87 /* : nullable Int */;
+val* var88 /* : nullable Bool */;
+val* var89 /* : nullable Bool */;
+val* var_service /* var service: String */;
+short int var90 /* : Bool */;
+short int var92 /* : Bool */;
+static val* varonce93;
+val* var94 /* : String */;
+char* var95 /* : CString */;
+val* var96 /* : String */;
+val* var97 /* : nullable Int */;
+val* var98 /* : nullable Int */;
+val* var99 /* : nullable Bool */;
+val* var100 /* : nullable Bool */;
+val* var101 /* : MClassType */;
+val* var103 /* : MClassType */;
+val* var104 /* : nullable CallSite */;
+short int var106 /* : Bool */;
+short int var108 /* : Bool */;
+static val* varonce109;
+val* var110 /* : String */;
+char* var111 /* : CString */;
+val* var112 /* : String */;
+val* var113 /* : nullable Int */;
+val* var114 /* : nullable Int */;
+val* var115 /* : nullable Bool */;
+val* var116 /* : nullable Bool */;
+val* var117 /* : MClassType */;
+val* var119 /* : MClassType */;
+val* var120 /* : nullable CallSite */;
+short int var122 /* : Bool */;
+short int var124 /* : Bool */;
+static val* varonce125;
+val* var126 /* : String */;
+char* var127 /* : CString */;
+val* var128 /* : String */;
+val* var129 /* : nullable Int */;
+val* var130 /* : nullable Int */;
+val* var131 /* : nullable Bool */;
+val* var132 /* : nullable Bool */;
+val* var133 /* : MClassType */;
+val* var135 /* : MClassType */;
+val* var136 /* : nullable CallSite */;
+val* var139 /* : NativeArray[String] */;
+static val* varonce138;
+static val* varonce140;
+val* var141 /* : String */;
+char* var142 /* : CString */;
+val* var143 /* : String */;
+val* var144 /* : nullable Int */;
+val* var145 /* : nullable Int */;
+val* var146 /* : nullable Bool */;
+val* var147 /* : nullable Bool */;
+static val* varonce148;
+val* var149 /* : String */;
+char* var150 /* : CString */;
+val* var151 /* : String */;
+val* var152 /* : nullable Int */;
+val* var153 /* : nullable Int */;
+val* var154 /* : nullable Bool */;
+val* var155 /* : nullable Bool */;
+val* var156 /* : String */;
+val* var157 /* : String */;
+short int var158 /* : Bool */;
+short int var159 /* : Bool */;
+short int var161 /* : Bool */;
+short int var163 /* : Bool */;
+val* var164 /* : MClassType */;
+val* var166 /* : MClassType */;
 var_v = p0;
-{
-{ /* Inline parser_nodes#AAsCastForm#n_expr (self) on <self:AAsCastExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsCastExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2586);
-fatal_exit(1);
-}
+if (likely(varonce!=NULL)) {
+var = varonce;
+} else {
+var1 = "String";
+var3 = (val*)(6l<<2|1);
+var4 = (val*)(6l<<2|1);
+var5 = (val*)((long)(0)<<2|3);
+var6 = (val*)((long)(0)<<2|3);
+var2 = core__flat___CString___to_s_unsafe(var1, var3, var4, var5, var6);
 var = var2;
-RET_LABEL1:(void)0;
-}
-}
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
-}
-{
-{ /* Inline parser_nodes#AAsCastExpr#n_type (self) on <self:AAsCastExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__AAsCastExpr___n_type].val; /* _n_type on <self:AAsCastExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2603);
-fatal_exit(1);
-}
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-var7 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var4);
+varonce = var;
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var7) on <self:AAsCastExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var7; /* _mtype on <self:AAsCastExpr> */
-RET_LABEL8:(void)0;
-}
+var7 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
 }
-RET_LABEL:;
+var_mclass = var7;
+if (var_mclass == NULL) {
+var8 = 1; /* is null */
+} else {
+var8 = 0; /* arg is null but recv is not */
 }
-/* method typing#AAsCastExpr#accept_post_typing for (self: AAsCastExpr, TypeVisitor) */
-void nitc__typing___AAsCastExpr___ANode__accept_post_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : AType */;
-val* var5 /* : AType */;
-val* var6 /* : nullable MType */;
-var_v = p0;
+if (0) {
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AAsCastForm#n_expr (self) on <self:AAsCastExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsCastExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2586);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var13 = var_mclass == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
-{
-{ /* Inline parser_nodes#AAsCastExpr#n_type (self) on <self:AAsCastExpr> */
-var5 = self->attrs[COLOR_nitc__parser_nodes__AAsCastExpr___n_type].val; /* _n_type on <self:AAsCastExpr> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2603);
-fatal_exit(1);
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
-var3 = var5;
-RET_LABEL4:(void)0;
+var8 = var9;
 }
+if (var8){
+goto RET_LABEL;
+} else {
 }
 {
-var6 = nitc__typing___nitc__typing__TypeVisitor___check_expr_cast(var_v, self, var, var3);
-}
-RET_LABEL:;
+var14 = nitc___nitc__AugmentedStringFormExpr___is_bytestring(self);
 }
-/* method typing#AAsNotnullExpr#accept_typing for (self: AAsNotnullExpr, TypeVisitor) */
-void nitc__typing___AAsNotnullExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-int cltype;
-int idtype;
-static val* varonce;
-val* var11 /* : String */;
-char* var12 /* : NativeString */;
-val* var13 /* : String */;
-short int var14 /* : Bool */;
-val* var15 /* : MType */;
-var_v = p0;
+if (var14){
 {
-{ /* Inline parser_nodes#AAsCastForm#n_expr (self) on <self:AAsNotnullExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2586);
+{ /* Inline typing$TypeVisitor$mmodule (var_v) on <var_v:TypeVisitor> */
+var17 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
+if (unlikely(var17 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var15 = var17;
+RET_LABEL16:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+var18 = nitc__model___MModule___c_string_type(var15);
 }
-var_mtype = var3;
-if (var_mtype == NULL) {
-var4 = 1; /* is null */
+if (likely(varonce19!=NULL)) {
+var20 = varonce19;
 } else {
-var4 = 0; /* arg is null but recv is not */
+var21 = "to_bytes_with_copy";
+var23 = (val*)(18l<<2|1);
+var24 = (val*)(18l<<2|1);
+var25 = (val*)((long)(0)<<2|3);
+var26 = (val*)((long)(0)<<2|3);
+var22 = core__flat___CString___to_s_unsafe(var21, var23, var24, var25, var26);
+var20 = var22;
+varonce19 = var20;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
-var9 = var_mtype == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var27 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var18, var20, 0);
 }
+{
+{ /* Inline typing$AugmentedStringFormExpr$to_bytes_with_copy= (self,var27) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_bytes_with_copy].val = var27; /* _to_bytes_with_copy on <self:AugmentedStringFormExpr> */
+RET_LABEL28:(void)0;
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
-}
-var4 = var5;
 }
-if (var4){
-goto RET_LABEL;
+if (likely(varonce29!=NULL)) {
+var30 = varonce29;
 } else {
+var31 = "Bytes";
+var33 = (val*)(5l<<2|1);
+var34 = (val*)(5l<<2|1);
+var35 = (val*)((long)(0)<<2|3);
+var36 = (val*)((long)(0)<<2|3);
+var32 = core__flat___CString___to_s_unsafe(var31, var33, var34, var35, var36);
+var30 = var32;
+varonce29 = var30;
 }
-/* <var_mtype:nullable MType(MType)> isa MNullType */
-cltype = type_nitc__MNullType.color;
-idtype = type_nitc__MNullType.id;
-if(cltype >= var_mtype->type->table_size) {
-var10 = 0;
-} else {
-var10 = var_mtype->type->type_table[cltype] == idtype;
+{
+var37 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var30);
 }
-if (var10){
-if (likely(varonce!=NULL)) {
-var11 = varonce;
+var_mclass = var37;
 } else {
-var12 = "Type Error: `as(not null)` on `null`.";
-var13 = core__flat___NativeString___to_s_full(var12, 37l, 37l);
-var11 = var13;
-varonce = var11;
+{
+var38 = nitc___nitc__AugmentedStringFormExpr___is_re(self);
 }
+if (var38){
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var11); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var41 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var41 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-goto RET_LABEL;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
+}
+var39 = var41;
+RET_LABEL40:(void)0;
+}
+}
+if (likely(varonce42!=NULL)) {
+var43 = varonce42;
 } else {
+var44 = "to_re";
+var46 = (val*)(5l<<2|1);
+var47 = (val*)(5l<<2|1);
+var48 = (val*)((long)(0)<<2|3);
+var49 = (val*)((long)(0)<<2|3);
+var45 = core__flat___CString___to_s_unsafe(var44, var46, var47, var48, var49);
+var43 = var45;
+varonce42 = var43;
 }
 {
-var14 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_mtype);
+var50 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var39, var43, 0);
 }
-if (var14){
 {
-var15 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__as_notnull]))(var_mtype); /* as_notnull on <var_mtype:nullable MType(MType)>*/
+{ /* Inline typing$AugmentedStringFormExpr$to_re= (self,var50) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___to_re].val = var50; /* _to_re on <self:AugmentedStringFormExpr> */
+RET_LABEL51:(void)0;
 }
-var_mtype = var15;
-} else {
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var_mtype) on <self:AAsNotnullExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:AAsNotnullExpr> */
-RET_LABEL16:(void)0;
+var52 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__literal__AAugmentedLiteral__suffix]))(self); /* suffix on <self:AugmentedStringFormExpr>*/
 }
+{
+var53 = ((val*(*)(val* self))(var52->class->vft[COLOR_core__abstract_text__Text__chars]))(var52); /* chars on <var52:String>*/
 }
-RET_LABEL:;
+var_ = var53;
+{
+var54 = ((val*(*)(val* self))((((long)var_&3)?class_info[((long)var_&3)]:var_->class)->vft[COLOR_core__abstract_collection__Collection__iterator]))(var_); /* iterator on <var_:SequenceRead[Char]>*/
 }
-/* method typing#AAsNotnullExpr#accept_post_typing for (self: AAsNotnullExpr, TypeVisitor) */
-void nitc__typing___AAsNotnullExpr___ANode__accept_post_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-short int var4 /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-val* var10 /* : AExpr */;
-val* var12 /* : AExpr */;
-short int var13 /* : Bool */;
-var_v = p0;
+var_55 = var54;
+for(;;) {
 {
-{ /* Inline parser_nodes#AAsCastForm#n_expr (self) on <self:AAsNotnullExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2586);
-fatal_exit(1);
+var56 = ((short int(*)(val* self))((((long)var_55&3)?class_info[((long)var_55&3)]:var_55->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_55); /* is_ok on <var_55:IndexedIterator[Char]>*/
 }
-var = var2;
-RET_LABEL1:(void)0;
+if (var56){
+} else {
+goto BREAK_label;
 }
+{
+var57 = ((val*(*)(val* self))((((long)var_55&3)?class_info[((long)var_55&3)]:var_55->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_55); /* item on <var_55:IndexedIterator[Char]>*/
+}
+var58 = (uint32_t)((long)(var57)>>2);
+var_i = var58;
+if (likely(varonce59!=NULL)) {
+var60 = varonce59;
+} else {
+var61 = "Regex";
+var63 = (val*)(5l<<2|1);
+var64 = (val*)(5l<<2|1);
+var65 = (val*)((long)(0)<<2|3);
+var66 = (val*)((long)(0)<<2|3);
+var62 = core__flat___CString___to_s_unsafe(var61, var63, var64, var65, var66);
+var60 = var62;
+varonce59 = var60;
 }
 {
-var3 = ((val*(*)(val* self))(var->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var); /* mtype on <var:AExpr>*/
+var67 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var60);
 }
-var_mtype = var3;
-if (var_mtype == NULL) {
-var4 = 1; /* is null */
+var_mclass = var67;
+if (var_mclass == NULL) {
+var68 = 1; /* is null */
 } else {
-var4 = 0; /* arg is null but recv is not */
+var68 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
-var9 = var_mtype == var_other;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var73 = var_mclass == var_other;
+var71 = var73;
+goto RET_LABEL72;
+RET_LABEL72:(void)0;
 }
 }
-var5 = var7;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var69 = var71;
+goto RET_LABEL70;
+RET_LABEL70:(void)0;
 }
-var4 = var5;
+var68 = var69;
 }
-if (var4){
-goto RET_LABEL;
+if (var68){
+if (likely(varonce74!=NULL)) {
+var75 = varonce74;
 } else {
+var76 = "Error: `Regex` class unknown";
+var78 = (val*)(28l<<2|1);
+var79 = (val*)(28l<<2|1);
+var80 = (val*)((long)(0)<<2|3);
+var81 = (val*)((long)(0)<<2|3);
+var77 = core__flat___CString___to_s_unsafe(var76, var78, var79, var80, var81);
+var75 = var77;
+varonce74 = var75;
 }
 {
-{ /* Inline parser_nodes#AAsCastForm#n_expr (self) on <self:AAsNotnullExpr> */
-var12 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2586);
-fatal_exit(1);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var75); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var10 = var12;
-RET_LABEL11:(void)0;
+goto RET_LABEL;
+} else {
 }
+if (likely(varonce82!=NULL)) {
+var83 = varonce82;
+} else {
+var84 = "";
+var86 = (val*)(0l<<2|1);
+var87 = (val*)(0l<<2|1);
+var88 = (val*)((long)(0)<<2|3);
+var89 = (val*)((long)(0)<<2|3);
+var85 = core__flat___CString___to_s_unsafe(var84, var86, var87, var88, var89);
+var83 = var85;
+varonce82 = var83;
 }
+var_service = var83;
 {
-var13 = nitc__typing___nitc__typing__TypeVisitor___check_can_be_null(var_v, var10, var_mtype);
+{ /* Inline kernel$Char$== (var_i,'i') on <var_i:Char> */
+var92 = var_i == 'i';
+var90 = var92;
+goto RET_LABEL91;
+RET_LABEL91:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AParExpr#accept_typing for (self: AParExpr, TypeVisitor) */
-void nitc__typing___AParExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-var_v = p0;
+if (var90){
+if (likely(varonce93!=NULL)) {
+var94 = varonce93;
+} else {
+var95 = "ignore_case=";
+var97 = (val*)(12l<<2|1);
+var98 = (val*)(12l<<2|1);
+var99 = (val*)((long)(0)<<2|3);
+var100 = (val*)((long)(0)<<2|3);
+var96 = core__flat___CString___to_s_unsafe(var95, var97, var98, var99, var100);
+var94 = var96;
+varonce93 = var94;
+}
+var_service = var94;
 {
-{ /* Inline parser_nodes#AParExpr#n_expr (self) on <self:AParExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AParExpr___n_expr].val; /* _n_expr on <self:AParExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2575);
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var103 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var103 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+var101 = var103;
+RET_LABEL102:(void)0;
 }
 }
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+var104 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var101, var_service, 0);
 }
 {
-{ /* Inline typing#AExpr#mtype= (self,var3) on <self:AParExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var3; /* _mtype on <self:AParExpr> */
-RET_LABEL4:(void)0;
-}
+{ /* Inline typing$AugmentedStringFormExpr$ignore_case= (self,var104) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___ignore_case].val = var104; /* _ignore_case on <self:AugmentedStringFormExpr> */
+RET_LABEL105:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AOnceExpr#accept_typing for (self: AOnceExpr, TypeVisitor) */
-void nitc__typing___AOnceExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-var_v = p0;
+} else {
 {
-{ /* Inline parser_nodes#AOnceExpr#n_expr (self) on <self:AOnceExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2014);
-fatal_exit(1);
-}
-var = var2;
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Char$== (var_i,'m') on <var_i:Char> */
+var108 = var_i == 'm';
+var106 = var108;
+goto RET_LABEL107;
+RET_LABEL107:(void)0;
 }
 }
-{
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+if (var106){
+if (likely(varonce109!=NULL)) {
+var110 = varonce109;
+} else {
+var111 = "newline=";
+var113 = (val*)(8l<<2|1);
+var114 = (val*)(8l<<2|1);
+var115 = (val*)((long)(0)<<2|3);
+var116 = (val*)((long)(0)<<2|3);
+var112 = core__flat___CString___to_s_unsafe(var111, var113, var114, var115, var116);
+var110 = var112;
+varonce109 = var110;
 }
+var_service = var110;
 {
-{ /* Inline typing#AExpr#mtype= (self,var3) on <self:AOnceExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var3; /* _mtype on <self:AOnceExpr> */
-RET_LABEL4:(void)0;
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var119 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var119 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
 }
-RET_LABEL:;
+var117 = var119;
+RET_LABEL118:(void)0;
 }
-/* method typing#ASelfExpr#its_variable for (self: ASelfExpr): nullable Variable */
-val* nitc__typing___ASelfExpr___AExpr__its_variable(val* self) {
-val* var /* : nullable Variable */;
-val* var1 /* : nullable Variable */;
-var1 = self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val; /* _its_variable on <self:ASelfExpr> */
-var = var1;
-RET_LABEL:;
-return var;
 }
-/* method typing#ASelfExpr#its_variable= for (self: ASelfExpr, nullable Variable) */
-void nitc__typing___ASelfExpr___its_variable_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val = p0; /* _its_variable on <self:ASelfExpr> */
-RET_LABEL:;
+{
+var120 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var117, var_service, 0);
 }
-/* method typing#ASelfExpr#accept_typing for (self: ASelfExpr, TypeVisitor) */
-void nitc__typing___ASelfExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-short int var3 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var4 /* : Bool */;
-int cltype;
-int idtype;
-short int var5 /* : Bool */;
-static val* varonce;
-val* var6 /* : String */;
-char* var7 /* : NativeString */;
-val* var8 /* : String */;
-val* var9 /* : Variable */;
-val* var11 /* : Variable */;
-val* var_variable /* var variable: Variable */;
-val* var13 /* : nullable MType */;
-var_v = p0;
 {
-{ /* Inline typing#TypeVisitor#is_toplevel_context (var_v) on <var_v:TypeVisitor> */
-var3 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___is_toplevel_context].s; /* _is_toplevel_context on <var_v:TypeVisitor> */
-var1 = var3;
-RET_LABEL2:(void)0;
+{ /* Inline typing$AugmentedStringFormExpr$newline= (self,var120) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___newline].val = var120; /* _newline on <self:AugmentedStringFormExpr> */
+RET_LABEL121:(void)0;
 }
 }
-var_ = var1;
-if (var1){
-/* <self:ASelfExpr> isa AImplicitSelfExpr */
-cltype = type_nitc__AImplicitSelfExpr.color;
-idtype = type_nitc__AImplicitSelfExpr.id;
-if(cltype >= self->type->table_size) {
-var4 = 0;
 } else {
-var4 = self->type->type_table[cltype] == idtype;
+{
+{ /* Inline kernel$Char$== (var_i,'b') on <var_i:Char> */
+var124 = var_i == 'b';
+var122 = var124;
+goto RET_LABEL123;
+RET_LABEL123:(void)0;
 }
-var5 = !var4;
-var = var5;
-} else {
-var = var_;
 }
-if (var){
-if (likely(varonce!=NULL)) {
-var6 = varonce;
+if (var122){
+if (likely(varonce125!=NULL)) {
+var126 = varonce125;
 } else {
-var7 = "Error: `self` cannot be used in top-level method.";
-var8 = core__flat___NativeString___to_s_full(var7, 49l, 49l);
-var6 = var8;
-varonce = var6;
+var127 = "extended=";
+var129 = (val*)(9l<<2|1);
+var130 = (val*)(9l<<2|1);
+var131 = (val*)((long)(0)<<2|3);
+var132 = (val*)((long)(0)<<2|3);
+var128 = core__flat___CString___to_s_unsafe(var127, var129, var130, var131, var132);
+var126 = var128;
+varonce125 = var126;
 }
+var_service = var126;
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var6); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
-}
-} else {
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var135 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var135 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline typing#TypeVisitor#selfvariable (var_v) on <var_v:TypeVisitor> */
-var11 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___selfvariable].val; /* _selfvariable on <var_v:TypeVisitor> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _selfvariable");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 51);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var9 = var11;
-RET_LABEL10:(void)0;
+var133 = var135;
+RET_LABEL134:(void)0;
 }
 }
-var_variable = var9;
 {
-{ /* Inline typing#ASelfExpr#its_variable= (self,var_variable) on <self:ASelfExpr> */
-self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val = var_variable; /* _its_variable on <self:ASelfExpr> */
-RET_LABEL12:(void)0;
-}
+var136 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var133, var_service, 0);
 }
 {
-var13 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var_variable);
+{ /* Inline typing$AugmentedStringFormExpr$extended= (self,var136) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AugmentedStringFormExpr___extended].val = var136; /* _extended on <self:AugmentedStringFormExpr> */
+RET_LABEL137:(void)0;
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var13) on <self:ASelfExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var13; /* _mtype on <self:ASelfExpr> */
-RET_LABEL14:(void)0;
 }
+} else {
+if (unlikely(varonce138==NULL)) {
+var139 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce140!=NULL)) {
+var141 = varonce140;
+} else {
+var142 = "Type Error: Unrecognized suffix ";
+var144 = (val*)(32l<<2|1);
+var145 = (val*)(32l<<2|1);
+var146 = (val*)((long)(0)<<2|3);
+var147 = (val*)((long)(0)<<2|3);
+var143 = core__flat___CString___to_s_unsafe(var142, var144, var145, var146, var147);
+var141 = var143;
+varonce140 = var141;
 }
-RET_LABEL:;
+((struct instance_core__NativeArray*)var139)->values[0]=var141;
+if (likely(varonce148!=NULL)) {
+var149 = varonce148;
+} else {
+var150 = " in prefixed Regex";
+var152 = (val*)(18l<<2|1);
+var153 = (val*)(18l<<2|1);
+var154 = (val*)((long)(0)<<2|3);
+var155 = (val*)((long)(0)<<2|3);
+var151 = core__flat___CString___to_s_unsafe(var150, var152, var153, var154, var155);
+var149 = var151;
+varonce148 = var149;
 }
-/* method typing#AImplicitSelfExpr#is_sys for (self: AImplicitSelfExpr): Bool */
-short int nitc__typing___AImplicitSelfExpr___is_sys(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_nitc__typing__AImplicitSelfExpr___is_sys].s; /* _is_sys on <self:AImplicitSelfExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+((struct instance_core__NativeArray*)var139)->values[2]=var149;
+} else {
+var139 = varonce138;
+varonce138 = NULL;
 }
-/* method typing#AImplicitSelfExpr#is_sys= for (self: AImplicitSelfExpr, Bool) */
-void nitc__typing___AImplicitSelfExpr___is_sys_61d(val* self, short int p0) {
-self->attrs[COLOR_nitc__typing__AImplicitSelfExpr___is_sys].s = p0; /* _is_sys on <self:AImplicitSelfExpr> */
-RET_LABEL:;
+var156 = core__abstract_text___Char___Object__to_s(var_i);
+((struct instance_core__NativeArray*)var139)->values[1]=var156;
+{
+var157 = ((val*(*)(val* self))(var139->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var139); /* native_to_s on <var139:NativeArray[String]>*/
 }
-/* method typing#ASendExpr#callsite for (self: ASendExpr): nullable CallSite */
-val* nitc__typing___ASendExpr___callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val; /* _callsite on <self:ASendExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+varonce138 = var139;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var157); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-/* method typing#ASendExpr#callsite= for (self: ASendExpr, nullable CallSite) */
-void nitc__typing___ASendExpr___callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val = p0; /* _callsite on <self:ASendExpr> */
-RET_LABEL:;
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method typing#ASendExpr#accept_typing for (self: ASendExpr, TypeVisitor) */
-void nitc__typing___ASendExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var_nrecv /* var nrecv: AExpr */;
-val* var3 /* : nullable MType */;
-val* var_recvtype /* var recvtype: nullable MType */;
-val* var4 /* : String */;
-val* var_name /* var name: String */;
-val* var5 /* : ANode */;
-val* var_node /* var node: ANode */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var9 /* : Bool */;
-short int var11 /* : Bool */;
-val* var_callsite /* var callsite: nullable Object */;
-val* var12 /* : MType */;
-val* var_unsafe_type /* var unsafe_type: MType */;
-val* var13 /* : nullable MProperty */;
-val* var_mproperty /* var mproperty: nullable MProperty */;
-short int var14 /* : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var21 /* : Bool */;
-int cltype;
-int idtype;
-static val* varonce;
-val* var22 /* : String */;
-char* var23 /* : NativeString */;
-val* var24 /* : String */;
-val* var25 /* : nullable MClass */;
-val* var_sysclass /* var sysclass: nullable MClass */;
-short int var26 /* : Bool */;
-short int var27 /* : Bool */;
-val* var_other29 /* var other: nullable Object */;
-short int var30 /* : Bool */;
-short int var31 /* : Bool */;
-val* var32 /* : MClassType */;
-val* var34 /* : MClassType */;
-val* var_systype /* var systype: MClassType */;
-val* var35 /* : nullable MProperty */;
-short int var36 /* : Bool */;
-short int var37 /* : Bool */;
-short int var39 /* : Bool */;
-short int var40 /* : Bool */;
-val* var41 /* : nullable CallSite */;
-short int var42 /* : Bool */;
-short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-short int var47 /* : Bool */;
-short int var51 /* : Bool */;
-short int var52 /* : Bool */;
-short int var54 /* : Bool */;
-short int var56 /* : Bool */;
-short int var57 /* : Bool */;
-int cltype58;
-int idtype59;
-val* var60 /* : nullable CallSite */;
-short int var61 /* : Bool */;
-short int var62 /* : Bool */;
-short int var64 /* : Bool */;
-short int var66 /* : Bool */;
-val* var68 /* : MSignature */;
-val* var70 /* : MSignature */;
-val* var_msignature /* var msignature: MSignature */;
-val* var71 /* : Array[AExpr] */;
-val* var_args /* var args: Array[AExpr] */;
-short int var72 /* : Bool */;
-val* var73 /* : MMethod */;
-val* var75 /* : MMethod */;
-short int var76 /* : Bool */;
-short int var78 /* : Bool */;
-val* var79 /* : nullable MPropDef */;
-val* var81 /* : nullable MPropDef */;
-val* var_vmpropdef /* var vmpropdef: nullable MPropDef */;
-short int var82 /* : Bool */;
-short int var83 /* : Bool */;
-int cltype84;
-int idtype85;
-short int var_86 /* var : Bool */;
-val* var87 /* : MProperty */;
-val* var89 /* : MProperty */;
-short int var90 /* : Bool */;
-short int var92 /* : Bool */;
-short int var93 /* : Bool */;
-static val* varonce94;
-val* var95 /* : String */;
-char* var96 /* : NativeString */;
-val* var97 /* : String */;
-short int var98 /* : Bool */;
-short int var99 /* : Bool */;
-short int var100 /* : Bool */;
-int cltype101;
-int idtype102;
-short int var_103 /* var : Bool */;
-val* var104 /* : MProperty */;
-val* var106 /* : MProperty */;
-short int var107 /* : Bool */;
-short int var109 /* : Bool */;
-short int var_110 /* var : Bool */;
-val* var111 /* : MMethod */;
-val* var113 /* : MMethod */;
-short int var114 /* : Bool */;
-short int var116 /* : Bool */;
-short int var117 /* : Bool */;
-val* var119 /* : NativeArray[String] */;
-static val* varonce118;
-static val* varonce120;
-val* var121 /* : String */;
-char* var122 /* : NativeString */;
-val* var123 /* : String */;
-static val* varonce124;
-val* var125 /* : String */;
-char* var126 /* : NativeString */;
-val* var127 /* : String */;
-static val* varonce128;
-val* var129 /* : String */;
-char* var130 /* : NativeString */;
-val* var131 /* : String */;
-val* var132 /* : String */;
-val* var133 /* : MMethod */;
-val* var135 /* : MMethod */;
-val* var136 /* : String */;
-val* var137 /* : String */;
-val* var138 /* : nullable MType */;
-val* var140 /* : nullable MType */;
-val* var_ret /* var ret: nullable MType */;
-short int var141 /* : Bool */;
-short int var142 /* : Bool */;
-short int var144 /* : Bool */;
-short int var145 /* : Bool */;
-var_v = p0;
-{
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:ASendExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ASendExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
+PRINT_ERROR("Runtime error: %s", "Aborted");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1530);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
 }
 }
-var_nrecv = var;
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_nrecv);
+((void(*)(val* self))((((long)var_55&3)?class_info[((long)var_55&3)]:var_55->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_55); /* next on <var_55:IndexedIterator[Char]>*/
 }
-var_recvtype = var3;
-{
-var4 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__property_name]))(self); /* property_name on <self:ASendExpr>*/
 }
-var_name = var4;
+BREAK_label: (void)0;
 {
-var5 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__property_node]))(self); /* property_node on <self:ASendExpr>*/
+((void(*)(val* self))((((long)var_55&3)?class_info[((long)var_55&3)]:var_55->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_55); /* finish on <var_55:IndexedIterator[Char]>*/
+}
+} else {
+}
 }
-var_node = var5;
-if (var_recvtype == NULL) {
-var6 = 1; /* is null */
+if (var_mclass == NULL) {
+var158 = 1; /* is null */
 } else {
-var6 = 0; /* arg is null but recv is not */
+var158 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_recvtype,((val*)NULL)) on <var_recvtype:nullable MType> */
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_recvtype,var_other) on <var_recvtype:nullable MType(MType)> */
-var11 = var_recvtype == var_other;
-var9 = var11;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var163 = var_mclass == var_other;
+var161 = var163;
+goto RET_LABEL162;
+RET_LABEL162:(void)0;
 }
 }
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var159 = var161;
+goto RET_LABEL160;
+RET_LABEL160:(void)0;
 }
-var6 = var7;
+var158 = var159;
 }
-if (var6){
+if (var158){
 goto RET_LABEL;
 } else {
 }
-var_callsite = ((val*)NULL);
-{
-var12 = nitc__typing___nitc__typing__TypeVisitor___anchor_to(var_v, var_recvtype);
-}
-var_unsafe_type = var12;
 {
-var13 = nitc__typing___nitc__typing__TypeVisitor___try_get_mproperty_by_name2(var_v, var_node, var_unsafe_type, var_name);
+{ /* Inline model$MClass$mclass_type (var_mclass) on <var_mclass:nullable MClass(MClass)> */
+var166 = var_mclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_mclass:nullable MClass(MClass)> */
+if (unlikely(var166 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_mproperty = var13;
-if (var_mproperty == NULL) {
-var15 = 1; /* is null */
-} else {
-var15 = 0; /* arg is null but recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mproperty,((val*)NULL)) on <var_mproperty:nullable MProperty> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_mproperty,var_other) on <var_mproperty:nullable MProperty(MProperty)> */
-var20 = var_mproperty == var_other;
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+var164 = var166;
+RET_LABEL165:(void)0;
 }
 }
-var16 = var18;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+{
+{ /* Inline typing$AExpr$mtype= (self,var164) on <self:AugmentedStringFormExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var164; /* _mtype on <self:AugmentedStringFormExpr> */
+RET_LABEL167:(void)0;
 }
-var15 = var16;
 }
-var_ = var15;
-if (var15){
-/* <var_nrecv:AExpr> isa AImplicitSelfExpr */
-cltype = type_nitc__AImplicitSelfExpr.color;
-idtype = type_nitc__AImplicitSelfExpr.id;
-if(cltype >= var_nrecv->type->table_size) {
-var21 = 0;
-} else {
-var21 = var_nrecv->type->type_table[cltype] == idtype;
+RET_LABEL:;
 }
-var14 = var21;
-} else {
-var14 = var_;
+/* method typing$ASuperstringExpr$accept_typing for (self: ASuperstringExpr, TypeVisitor) */
+void nitc__typing___ASuperstringExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+static val* varonce;
+val* var /* : String */;
+char* var1 /* : CString */;
+val* var2 /* : String */;
+val* var3 /* : nullable Int */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Bool */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable MClass */;
+val* var_objclass /* var objclass: nullable MClass */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
+val* var14 /* : MClassType */;
+val* var16 /* : MClassType */;
+val* var_objtype /* var objtype: MClassType */;
+val* var17 /* : ANodes[AExpr] */;
+val* var19 /* : ANodes[AExpr] */;
+val* var_ /* var : ANodes[AExpr] */;
+val* var20 /* : Iterator[ANode] */;
+val* var_21 /* var : Iterator[AExpr] */;
+short int var22 /* : Bool */;
+val* var23 /* : nullable Object */;
+val* var_nexpr /* var nexpr: AExpr */;
+val* var24 /* : nullable MType */;
+var_v = p0;
+{
+((void(*)(val* self, val* p0))(self->class->vft[COLOR_nitc__typing___ASuperstringExpr___AExpr__accept_typing]))(self, p0); /* accept_typing on <self:ASuperstringExpr>*/
 }
-if (var14){
 if (likely(varonce!=NULL)) {
-var22 = varonce;
+var = varonce;
 } else {
-var23 = "Sys";
-var24 = core__flat___NativeString___to_s_full(var23, 3l, 3l);
-var22 = var24;
-varonce = var22;
+var1 = "Object";
+var3 = (val*)(6l<<2|1);
+var4 = (val*)(6l<<2|1);
+var5 = (val*)((long)(0)<<2|3);
+var6 = (val*)((long)(0)<<2|3);
+var2 = core__flat___CString___to_s_unsafe(var1, var3, var4, var5, var6);
+var = var2;
+varonce = var;
 }
 {
-var25 = nitc__typing___nitc__typing__TypeVisitor___try_get_mclass(var_v, var_node, var22);
+var7 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
 }
-var_sysclass = var25;
-if (var_sysclass == NULL) {
-var26 = 0; /* is null */
+var_objclass = var7;
+if (var_objclass == NULL) {
+var8 = 1; /* is null */
 } else {
-var26 = 1; /* arg is null and recv is not */
+var8 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_sysclass,((val*)NULL)) on <var_sysclass:nullable MClass> */
-var_other29 = ((val*)NULL);
+{ /* Inline kernel$Object$== (var_objclass,((val*)NULL)) on <var_objclass:nullable MClass> */
+var_other = ((val*)NULL);
 {
-var30 = ((short int(*)(val* self, val* p0))(var_sysclass->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_sysclass, var_other29); /* == on <var_sysclass:nullable MClass(MClass)>*/
+{ /* Inline kernel$Object$is_same_instance (var_objclass,var_other) on <var_objclass:nullable MClass(MClass)> */
+var13 = var_objclass == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-var31 = !var30;
-var27 = var31;
-goto RET_LABEL28;
-RET_LABEL28:(void)0;
 }
-var26 = var27;
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
+}
+var8 = var9;
+}
+if (var8){
+goto RET_LABEL;
+} else {
 }
-if (var26){
 {
-{ /* Inline model#MClass#mclass_type (var_sysclass) on <var_sysclass:nullable MClass(MClass)> */
-var34 = var_sysclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_sysclass:nullable MClass(MClass)> */
-if (unlikely(var34 == NULL)) {
+{ /* Inline model$MClass$mclass_type (var_objclass) on <var_objclass:nullable MClass(MClass)> */
+var16 = var_objclass->attrs[COLOR_nitc__model__MClass___mclass_type].val; /* _mclass_type on <var_objclass:nullable MClass(MClass)> */
+if (unlikely(var16 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mclass_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 507);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 520);
 fatal_exit(1);
 }
-var32 = var34;
-RET_LABEL33:(void)0;
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
-var_systype = var32;
+var_objtype = var14;
 {
-var35 = nitc__typing___nitc__typing__TypeVisitor___try_get_mproperty_by_name2(var_v, var_node, var_systype, var_name);
+{ /* Inline parser_nodes$ASuperstringExpr$n_exprs (self) on <self:ASuperstringExpr> */
+var19 = self->attrs[COLOR_nitc__parser_nodes__ASuperstringExpr___n_exprs].val; /* _n_exprs on <self:ASuperstringExpr> */
+if (unlikely(var19 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_mproperty = var35;
-if (var_mproperty == NULL) {
-var36 = 0; /* is null */
-} else {
-var36 = 1; /* arg is null and recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_exprs");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2645);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_mproperty,((val*)NULL)) on <var_mproperty:nullable MProperty> */
-var_other29 = ((val*)NULL);
-{
-var39 = ((short int(*)(val* self, val* p0))(var_mproperty->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mproperty, var_other29); /* == on <var_mproperty:nullable MProperty(MProperty)>*/
+var17 = var19;
+RET_LABEL18:(void)0;
 }
-var40 = !var39;
-var37 = var40;
-goto RET_LABEL38;
-RET_LABEL38:(void)0;
 }
-var36 = var37;
+var_ = var17;
+{
+var20 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
 }
-if (var36){
+var_21 = var20;
+for(;;) {
 {
-var41 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var_node, var_systype, var_name, 0);
+var22 = ((short int(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_21); /* is_ok on <var_21:Iterator[AExpr]>*/
 }
-var_callsite = var41;
-if (var_callsite == NULL) {
-var42 = 1; /* is null */
+if (var22){
 } else {
-var42 = 0; /* arg is null but recv is not */
+goto BREAK_label;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_callsite,((val*)NULL)) on <var_callsite:nullable Object(nullable CallSite)> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
-var47 = var_callsite == var_other;
-var45 = var47;
-goto RET_LABEL46;
-RET_LABEL46:(void)0;
-}
-}
-var43 = var45;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
-}
-var42 = var43;
+var23 = ((val*(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_21); /* item on <var_21:Iterator[AExpr]>*/
 }
-if (var42){
-goto RET_LABEL;
-} else {
+var_nexpr = var23;
+{
+var24 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var_nexpr, var_objtype);
 }
 {
-{ /* Inline typing#AImplicitSelfExpr#is_sys= (var_nrecv,1) on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-var_nrecv->attrs[COLOR_nitc__typing__AImplicitSelfExpr___is_sys].s = 1; /* _is_sys on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-RET_LABEL48:(void)0;
+((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_21); /* next on <var_21:Iterator[AExpr]>*/
 }
 }
+BREAK_label: (void)0;
 {
-{ /* Inline typing#ASelfExpr#its_variable= (var_nrecv,((val*)NULL)) on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-var_nrecv->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val = ((val*)NULL); /* _its_variable on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-RET_LABEL49:(void)0;
+((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_21); /* finish on <var_21:Iterator[AExpr]>*/
+}
+RET_LABEL:;
 }
+/* method typing$AArrayExpr$with_capacity_callsite for (self: AArrayExpr): nullable CallSite */
+val* nitc__typing___AArrayExpr___with_capacity_callsite(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val; /* _with_capacity_callsite on <self:AArrayExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-{ /* Inline typing#AExpr#mtype= (var_nrecv,var_systype) on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-var_nrecv->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_systype; /* _mtype on <var_nrecv:AExpr(AImplicitSelfExpr)> */
-RET_LABEL50:(void)0;
+/* method typing$AArrayExpr$with_capacity_callsite= for (self: AArrayExpr, nullable CallSite) */
+void nitc__typing___AArrayExpr___with_capacity_callsite_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val = p0; /* _with_capacity_callsite on <self:AArrayExpr> */
+RET_LABEL:;
 }
+/* method typing$AArrayExpr$push_callsite for (self: AArrayExpr): nullable CallSite */
+val* nitc__typing___AArrayExpr___push_callsite(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val; /* _push_callsite on <self:AArrayExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var_recvtype = var_systype;
-} else {
+/* method typing$AArrayExpr$push_callsite= for (self: AArrayExpr, nullable CallSite) */
+void nitc__typing___AArrayExpr___push_callsite_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val = p0; /* _push_callsite on <self:AArrayExpr> */
+RET_LABEL:;
 }
-} else {
+/* method typing$AArrayExpr$element_mtype for (self: AArrayExpr): nullable MType */
+val* nitc__typing___AArrayExpr___element_mtype(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : nullable MType */;
+var1 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-} else {
+/* method typing$AArrayExpr$element_mtype= for (self: AArrayExpr, nullable MType) */
+void nitc__typing___AArrayExpr___element_mtype_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val = p0; /* _element_mtype on <self:AArrayExpr> */
+RET_LABEL:;
 }
-if (var_callsite == NULL) {
-var51 = 1; /* is null */
+/* method typing$AArrayExpr$set_comprehension for (self: AArrayExpr, nullable AExpr) */
+void nitc__typing___AArrayExpr___set_comprehension(val* self, val* p0) {
+val* var_n /* var n: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var5 /* : Bool */;
+short int var6 /* : Bool */;
+int cltype;
+int idtype;
+val* var7 /* : nullable AExpr */;
+val* var9 /* : nullable AExpr */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+val* var13 /* : nullable AExpr */;
+val* var15 /* : nullable AExpr */;
+val* var16 /* : nullable AExpr */;
+val* var18 /* : nullable AExpr */;
+var_n = p0;
+if (var_n == NULL) {
+var = 1; /* is null */
 } else {
-var51 = 0; /* arg is null but recv is not */
+var = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_callsite,((val*)NULL)) on <var_callsite:nullable Object(nullable CallSite)> */
+{ /* Inline kernel$Object$== (var_n,((val*)NULL)) on <var_n:nullable AExpr> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
-var56 = var_callsite == var_other;
-var54 = var56;
-goto RET_LABEL55;
-RET_LABEL55:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_n,var_other) on <var_n:nullable AExpr(AExpr)> */
+var5 = var_n == var_other;
+var3 = var5;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
-var52 = var54;
-goto RET_LABEL53;
-RET_LABEL53:(void)0;
+var1 = var3;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
-var51 = var52;
+var = var1;
 }
-if (var51){
-/* <var_nrecv:AExpr> isa ASelfExpr */
-cltype58 = type_nitc__ASelfExpr.color;
-idtype59 = type_nitc__ASelfExpr.id;
-if(cltype58 >= var_nrecv->type->table_size) {
-var57 = 0;
+if (var){
+goto RET_LABEL;
 } else {
-var57 = var_nrecv->type->type_table[cltype58] == idtype59;
-}
-{
-var60 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var_node, var_recvtype, var_name, var57);
-}
-var_callsite = var60;
-if (var_callsite == NULL) {
-var61 = 1; /* is null */
+/* <var_n:nullable AExpr(AExpr)> isa AForExpr */
+cltype = type_nitc__AForExpr.color;
+idtype = type_nitc__AForExpr.id;
+if(cltype >= var_n->type->table_size) {
+var6 = 0;
 } else {
-var61 = 0; /* arg is null but recv is not */
+var6 = var_n->type->type_table[cltype] == idtype;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_callsite,((val*)NULL)) on <var_callsite:nullable Object(nullable CallSite)> */
-var_other = ((val*)NULL);
+if (var6){
 {
-{ /* Inline kernel#Object#is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
-var66 = var_callsite == var_other;
-var64 = var66;
-goto RET_LABEL65;
-RET_LABEL65:(void)0;
-}
+{ /* Inline parser_nodes$AForExpr$n_block (var_n) on <var_n:nullable AExpr(AForExpr)> */
+var9 = var_n->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <var_n:nullable AExpr(AForExpr)> */
+var7 = var9;
+RET_LABEL8:(void)0;
 }
-var62 = var64;
-goto RET_LABEL63;
-RET_LABEL63:(void)0;
 }
-var61 = var62;
+{
+nitc__typing___AArrayExpr___set_comprehension(self, var7); /* Direct call typing$AArrayExpr$set_comprehension on <self:AArrayExpr>*/
 }
-if (var61){
-goto RET_LABEL;
 } else {
-}
+/* <var_n:nullable AExpr(AExpr)> isa AIfExpr */
+cltype11 = type_nitc__AIfExpr.color;
+idtype12 = type_nitc__AIfExpr.id;
+if(cltype11 >= var_n->type->table_size) {
+var10 = 0;
 } else {
+var10 = var_n->type->type_table[cltype11] == idtype12;
 }
+if (var10){
 {
-{ /* Inline typing#ASendExpr#callsite= (self,var_callsite) on <self:ASendExpr> */
-self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val = var_callsite; /* _callsite on <self:ASendExpr> */
-RET_LABEL67:(void)0;
+{ /* Inline parser_nodes$AIfExpr$n_then (var_n) on <var_n:nullable AExpr(AIfExpr)> */
+var15 = var_n->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <var_n:nullable AExpr(AIfExpr)> */
+var13 = var15;
+RET_LABEL14:(void)0;
 }
 }
 {
-{ /* Inline typing#CallSite#msignature (var_callsite) on <var_callsite:nullable Object(CallSite)> */
-var70 = var_callsite->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_callsite:nullable Object(CallSite)> */
-if (unlikely(var70 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 660);
-fatal_exit(1);
+nitc__typing___AArrayExpr___set_comprehension(self, var13); /* Direct call typing$AArrayExpr$set_comprehension on <self:AArrayExpr>*/
 }
-var68 = var70;
-RET_LABEL69:(void)0;
+{
+{ /* Inline parser_nodes$AIfExpr$n_else (var_n) on <var_n:nullable AExpr(AIfExpr)> */
+var18 = var_n->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <var_n:nullable AExpr(AIfExpr)> */
+var16 = var18;
+RET_LABEL17:(void)0;
 }
 }
-var_msignature = var68;
 {
-var71 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__compute_raw_arguments]))(self); /* compute_raw_arguments on <self:ASendExpr>*/
+nitc__typing___AArrayExpr___set_comprehension(self, var16); /* Direct call typing$AArrayExpr$set_comprehension on <self:AArrayExpr>*/
 }
-var_args = var71;
+} else {
 {
-var72 = nitc___nitc__CallSite___check_signature(var_callsite, var_v, var_node, var_args);
+{ /* Inline typing$AExpr$comprehension= (var_n,self) on <var_n:nullable AExpr(AExpr)> */
+var_n->attrs[COLOR_nitc__typing__AExpr___comprehension].val = self; /* _comprehension on <var_n:nullable AExpr(AExpr)> */
+RET_LABEL19:(void)0;
 }
-{
-{ /* Inline typing#CallSite#mproperty (var_callsite) on <var_callsite:nullable Object(CallSite)> */
-var75 = var_callsite->attrs[COLOR_nitc__typing__CallSite___mproperty].val; /* _mproperty on <var_callsite:nullable Object(CallSite)> */
-if (unlikely(var75 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 653);
-fatal_exit(1);
 }
-var73 = var75;
-RET_LABEL74:(void)0;
 }
 }
-{
-{ /* Inline model#MMethod#is_init (var73) on <var73:MMethod> */
-var78 = var73->attrs[COLOR_nitc__model__MMethod___is_init].s; /* _is_init on <var73:MMethod> */
-var76 = var78;
-RET_LABEL77:(void)0;
 }
+RET_LABEL:;
 }
-if (var76){
+/* method typing$AArrayExpr$accept_typing for (self: AArrayExpr, TypeVisitor) */
+void nitc__typing___AArrayExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var_mtype /* var mtype: nullable MType */;
+val* var /* : nullable AType */;
+val* var2 /* : nullable AType */;
+val* var_ntype /* var ntype: nullable AType */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+val* var8 /* : nullable MType */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+val* var_other12 /* var other: nullable Object */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+val* var16 /* : Array[nullable MType] */;
+val* var_mtypes /* var mtypes: Array[nullable MType] */;
+short int var_useless /* var useless: Bool */;
+val* var17 /* : ANodes[AExpr] */;
+val* var19 /* : ANodes[AExpr] */;
+val* var_ /* var : ANodes[AExpr] */;
+val* var20 /* : Iterator[ANode] */;
+val* var_21 /* var : Iterator[AExpr] */;
+short int var22 /* : Bool */;
+val* var23 /* : nullable Object */;
+val* var_e /* var e: AExpr */;
+val* var24 /* : nullable MType */;
+val* var_t /* var t: nullable MType */;
+short int var25 /* : Bool */;
+short int var26 /* : Bool */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+short int var31 /* : Bool */;
+short int var32 /* : Bool */;
+short int var34 /* : Bool */;
+short int var35 /* : Bool */;
+val* var36 /* : nullable MType */;
+short int var37 /* : Bool */;
+short int var38 /* : Bool */;
+short int var40 /* : Bool */;
+short int var42 /* : Bool */;
+short int var43 /* : Bool */;
+short int var45 /* : Bool */;
+short int var47 /* : Bool */;
+short int var48 /* : Bool */;
+short int var49 /* : Bool */;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+val* var54 /* : nullable MType */;
+val* var56 /* : nullable MType */;
+short int var57 /* : Bool */;
+short int var58 /* : Bool */;
+short int var60 /* : Bool */;
+short int var61 /* : Bool */;
+val* var62 /* : nullable MType */;
+val* var64 /* : nullable MType */;
+val* var65 /* : nullable MType */;
+short int var66 /* : Bool */;
+short int var67 /* : Bool */;
+short int var68 /* : Bool */;
+short int var70 /* : Bool */;
+short int var72 /* : Bool */;
+short int var_73 /* var : Bool */;
+short int var74 /* : Bool */;
+int cltype;
+int idtype;
+val* var75 /* : NativeArray[String] */;
+static val* varonce;
+static val* varonce76;
+val* var77 /* : String */;
+char* var78 /* : CString */;
+val* var79 /* : String */;
+val* var80 /* : nullable Int */;
+val* var81 /* : nullable Int */;
+val* var82 /* : nullable Bool */;
+val* var83 /* : nullable Bool */;
+static val* varonce84;
+val* var85 /* : String */;
+char* var86 /* : CString */;
+val* var87 /* : String */;
+val* var88 /* : nullable Int */;
+val* var89 /* : nullable Int */;
+val* var90 /* : nullable Bool */;
+val* var91 /* : nullable Bool */;
+val* var92 /* : String */;
+val* var93 /* : String */;
+short int var94 /* : Bool */;
+short int var95 /* : Bool */;
+short int var97 /* : Bool */;
+short int var98 /* : Bool */;
+val* var99 /* : ModelBuilder */;
+val* var101 /* : ModelBuilder */;
+static val* varonce102;
+val* var103 /* : String */;
+char* var104 /* : CString */;
+val* var105 /* : String */;
+val* var106 /* : nullable Int */;
+val* var107 /* : nullable Int */;
+val* var108 /* : nullable Bool */;
+val* var109 /* : nullable Bool */;
+val* var111 /* : NativeArray[String] */;
+static val* varonce110;
+static val* varonce112;
+val* var113 /* : String */;
+char* var114 /* : CString */;
+val* var115 /* : String */;
+val* var116 /* : nullable Int */;
+val* var117 /* : nullable Int */;
+val* var118 /* : nullable Bool */;
+val* var119 /* : nullable Bool */;
+static val* varonce120;
+val* var121 /* : String */;
+char* var122 /* : CString */;
+val* var123 /* : String */;
+val* var124 /* : nullable Int */;
+val* var125 /* : nullable Int */;
+val* var126 /* : nullable Bool */;
+val* var127 /* : nullable Bool */;
+val* var128 /* : String */;
+val* var129 /* : String */;
+static val* varonce131;
+val* var132 /* : String */;
+char* var133 /* : CString */;
+val* var134 /* : String */;
+val* var135 /* : nullable Int */;
+val* var136 /* : nullable Int */;
+val* var137 /* : nullable Bool */;
+val* var138 /* : nullable Bool */;
+val* var139 /* : nullable MClass */;
+val* var_mclass /* var mclass: nullable MClass */;
+short int var140 /* : Bool */;
+short int var141 /* : Bool */;
+short int var143 /* : Bool */;
+short int var145 /* : Bool */;
+val* var146 /* : Array[MType] */;
+val* var_147 /* var : Array[MType] */;
+val* var148 /* : MClassType */;
+val* var_array_mtype /* var array_mtype: MClassType */;
+static val* varonce149;
+val* var150 /* : String */;
+char* var151 /* : CString */;
+val* var152 /* : String */;
+val* var153 /* : nullable Int */;
+val* var154 /* : nullable Int */;
+val* var155 /* : nullable Bool */;
+val* var156 /* : nullable Bool */;
+val* var157 /* : nullable CallSite */;
+static val* varonce159;
+val* var160 /* : String */;
+char* var161 /* : CString */;
+val* var162 /* : String */;
+val* var163 /* : nullable Int */;
+val* var164 /* : nullable Int */;
+val* var165 /* : nullable Bool */;
+val* var166 /* : nullable Bool */;
+val* var167 /* : nullable CallSite */;
+var_v = p0;
+var_mtype = ((val*)NULL);
 {
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var81 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var79 = var81;
-RET_LABEL80:(void)0;
+{ /* Inline parser_nodes$AArrayExpr$n_type (self) on <self:AArrayExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AArrayExpr___n_type].val; /* _n_type on <self:AArrayExpr> */
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-var_vmpropdef = var79;
-/* <var_vmpropdef:nullable MPropDef> isa MMethodDef */
-cltype84 = type_nitc__MMethodDef.color;
-idtype85 = type_nitc__MMethodDef.id;
-if(var_vmpropdef == NULL) {
-var83 = 0;
-} else {
-if(cltype84 >= var_vmpropdef->type->table_size) {
-var83 = 0;
+var_ntype = var;
+if (var_ntype == NULL) {
+var3 = 0; /* is null */
 } else {
-var83 = var_vmpropdef->type->type_table[cltype84] == idtype85;
-}
+var3 = 1; /* arg is null and recv is not */
 }
-var_86 = var83;
-if (var83){
+if (0) {
+{ /* Inline kernel$Object$!= (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline model#MPropDef#mproperty (var_vmpropdef) on <var_vmpropdef:nullable MPropDef(MMethodDef)> */
-var89 = var_vmpropdef->attrs[COLOR_nitc__model__MPropDef___mproperty].val; /* _mproperty on <var_vmpropdef:nullable MPropDef(MMethodDef)> */
-if (unlikely(var89 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 2230);
-fatal_exit(1);
+var6 = ((short int(*)(val* self, val* p0))(var_ntype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ntype, var_other); /* == on <var_ntype:nullable AType(AType)>*/
 }
-var87 = var89;
-RET_LABEL88:(void)0;
+var7 = !var6;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
+var3 = var4;
 }
+if (var3){
 {
-{ /* Inline model#MMethod#is_init (var87) on <var87:MProperty(MMethod)> */
-var92 = var87->attrs[COLOR_nitc__model__MMethod___is_init].s; /* _is_init on <var87:MProperty(MMethod)> */
-var90 = var92;
-RET_LABEL91:(void)0;
-}
-}
-var82 = var90;
-} else {
-var82 = var_86;
+var8 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var_ntype);
 }
-var93 = !var82;
-if (var93){
-if (likely(varonce94!=NULL)) {
-var95 = varonce94;
+var_mtype = var8;
+if (var_mtype == NULL) {
+var9 = 1; /* is null */
 } else {
-var96 = "Error: an `init` can only be called from another `init`.";
-var97 = core__flat___NativeString___to_s_full(var96, 56l, 56l);
-var95 = var97;
-varonce94 = var95;
+var9 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, var_node, var95); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
+var15 = var_mtype == var_other12;
+var13 = var15;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
-} else {
 }
-/* <var_vmpropdef:nullable MPropDef> isa MMethodDef */
-cltype101 = type_nitc__MMethodDef.color;
-idtype102 = type_nitc__MMethodDef.id;
-if(var_vmpropdef == NULL) {
-var100 = 0;
+var10 = var13;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
+}
+var9 = var10;
+}
+if (var9){
+goto RET_LABEL;
 } else {
-if(cltype101 >= var_vmpropdef->type->table_size) {
-var100 = 0;
+}
 } else {
-var100 = var_vmpropdef->type->type_table[cltype101] == idtype102;
 }
+var16 = NEW_core__Array(&type_core__Array__nullable__nitc__MType);
+{
+core___core__Array___core__kernel__Object__init(var16); /* Direct call array$Array$init on <var16:Array[nullable MType]>*/
 }
-var_103 = var100;
-if (var100){
+var_mtypes = var16;
+var_useless = 0;
 {
-{ /* Inline model#MPropDef#mproperty (var_vmpropdef) on <var_vmpropdef:nullable MPropDef(MMethodDef)> */
-var106 = var_vmpropdef->attrs[COLOR_nitc__model__MPropDef___mproperty].val; /* _mproperty on <var_vmpropdef:nullable MPropDef(MMethodDef)> */
-if (unlikely(var106 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 2230);
+{ /* Inline parser_nodes$AArrayExpr$n_exprs (self) on <self:AArrayExpr> */
+var19 = self->attrs[COLOR_nitc__parser_nodes__AArrayExpr___n_exprs].val; /* _n_exprs on <self:AArrayExpr> */
+if (unlikely(var19 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_exprs");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2541);
 fatal_exit(1);
 }
-var104 = var106;
-RET_LABEL105:(void)0;
+var17 = var19;
+RET_LABEL18:(void)0;
 }
 }
+var_ = var17;
 {
-{ /* Inline model#MMethod#is_root_init (var104) on <var104:MProperty(MMethod)> */
-var109 = var104->attrs[COLOR_nitc__model__MMethod___is_root_init].s; /* _is_root_init on <var104:MProperty(MMethod)> */
-var107 = var109;
-RET_LABEL108:(void)0;
+var20 = nitc___nitc__ANodes___core__abstract_collection__Collection__iterator(var_);
 }
+var_21 = var20;
+for(;;) {
+{
+var22 = ((short int(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_21); /* is_ok on <var_21:Iterator[AExpr]>*/
 }
-var99 = var107;
+if (var22){
 } else {
-var99 = var_103;
+goto BREAK_label;
 }
-var_110 = var99;
-if (var99){
 {
-{ /* Inline typing#CallSite#mproperty (var_callsite) on <var_callsite:nullable Object(CallSite)> */
-var113 = var_callsite->attrs[COLOR_nitc__typing__CallSite___mproperty].val; /* _mproperty on <var_callsite:nullable Object(CallSite)> */
-if (unlikely(var113 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 653);
-fatal_exit(1);
+var23 = ((val*(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_21); /* item on <var_21:Iterator[AExpr]>*/
 }
-var111 = var113;
-RET_LABEL112:(void)0;
+var_e = var23;
+{
+var24 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var_e);
 }
+var_t = var24;
+if (var_t == NULL) {
+var25 = 1; /* is null */
+} else {
+var25 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_t,((val*)NULL)) on <var_t:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-{ /* Inline model#MMethod#is_root_init (var111) on <var111:MMethod> */
-var116 = var111->attrs[COLOR_nitc__model__MMethod___is_root_init].s; /* _is_root_init on <var111:MMethod> */
-var114 = var116;
-RET_LABEL115:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_t,var_other12) on <var_t:nullable MType(MType)> */
+var30 = var_t == var_other12;
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
-var117 = !var114;
-var98 = var117;
-} else {
-var98 = var_110;
+var26 = var28;
+goto RET_LABEL27;
+RET_LABEL27:(void)0;
 }
-if (var98){
-if (unlikely(varonce118==NULL)) {
-var119 = NEW_core__NativeArray(5l, &type_core__NativeArray__core__String);
-if (likely(varonce120!=NULL)) {
-var121 = varonce120;
-} else {
-var122 = "Error: `";
-var123 = core__flat___NativeString___to_s_full(var122, 8l, 8l);
-var121 = var123;
-varonce120 = var121;
+var25 = var26;
 }
-((struct instance_core__NativeArray*)var119)->values[0]=var121;
-if (likely(varonce124!=NULL)) {
-var125 = varonce124;
+if (var25){
+goto RET_LABEL;
 } else {
-var126 = "` cannot call a factory `";
-var127 = core__flat___NativeString___to_s_full(var126, 25l, 25l);
-var125 = var127;
-varonce124 = var125;
 }
-((struct instance_core__NativeArray*)var119)->values[2]=var125;
-if (likely(varonce128!=NULL)) {
-var129 = varonce128;
-} else {
-var130 = "`.";
-var131 = core__flat___NativeString___to_s_full(var130, 2l, 2l);
-var129 = var131;
-varonce128 = var129;
+{
+nitc__typing___AArrayExpr___set_comprehension(self, var_e); /* Direct call typing$AArrayExpr$set_comprehension on <self:AArrayExpr>*/
 }
-((struct instance_core__NativeArray*)var119)->values[4]=var129;
+if (var_mtype == NULL) {
+var31 = 0; /* is null */
 } else {
-var119 = varonce118;
-varonce118 = NULL;
-}
-{
-var132 = ((val*(*)(val* self))(var_vmpropdef->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_vmpropdef); /* to_s on <var_vmpropdef:nullable MPropDef(MMethodDef)>*/
+var31 = 1; /* arg is null and recv is not */
 }
-((struct instance_core__NativeArray*)var119)->values[1]=var132;
+if (0) {
+{ /* Inline kernel$Object$!= (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other = ((val*)NULL);
 {
-{ /* Inline typing#CallSite#mproperty (var_callsite) on <var_callsite:nullable Object(CallSite)> */
-var135 = var_callsite->attrs[COLOR_nitc__typing__CallSite___mproperty].val; /* _mproperty on <var_callsite:nullable Object(CallSite)> */
-if (unlikely(var135 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 653);
-fatal_exit(1);
+var34 = ((short int(*)(val* self, val* p0))(var_mtype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_mtype, var_other); /* == on <var_mtype:nullable MType(MType)>*/
 }
-var133 = var135;
-RET_LABEL134:(void)0;
+var35 = !var34;
+var32 = var35;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
 }
+var31 = var32;
 }
+if (var31){
 {
-var136 = ((val*(*)(val* self))(var133->class->vft[COLOR_core__abstract_text__Object__to_s]))(var133); /* to_s on <var133:MMethod>*/
+var36 = nitc__typing___nitc__typing__TypeVisitor___check_subtype(var_v, var_e, var_t, var_mtype, 0);
 }
-((struct instance_core__NativeArray*)var119)->values[3]=var136;
-{
-var137 = ((val*(*)(val* self))(var119->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var119); /* native_to_s on <var119:NativeArray[String]>*/
+if (var36 == NULL) {
+var37 = 1; /* is null */
+} else {
+var37 = 0; /* arg is null but recv is not */
 }
-varonce118 = var119;
+if (0) {
+{ /* Inline kernel$Object$== (var36,((val*)NULL)) on <var36:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, var_node, var137); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
-}
-} else {
+{ /* Inline kernel$Object$is_same_instance (var36,var_other12) on <var36:nullable MType(MType)> */
+var42 = var36 == var_other12;
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
-} else {
 }
-{
-{ /* Inline model#MSignature#return_mtype (var_msignature) on <var_msignature:MSignature> */
-var140 = var_msignature->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var_msignature:MSignature> */
-var138 = var140;
-RET_LABEL139:(void)0;
+var38 = var40;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
+var37 = var38;
 }
-var_ret = var138;
-if (var_ret == NULL) {
-var141 = 0; /* is null */
+if (var37){
+goto RET_LABEL;
 } else {
-var141 = 1; /* arg is null and recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_ret,((val*)NULL)) on <var_ret:nullable MType> */
-var_other29 = ((val*)NULL);
 {
-var144 = ((short int(*)(val* self, val* p0))(var_ret->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ret, var_other29); /* == on <var_ret:nullable MType(MType)>*/
+{ /* Inline kernel$Object$== (var_t,var_mtype) on <var_t:nullable MType(MType)> */
+var_other12 = var_mtype;
+{
+{ /* Inline kernel$Object$is_same_instance (var_t,var_other12) on <var_t:nullable MType(MType)> */
+var47 = var_t == var_other12;
+var45 = var47;
+goto RET_LABEL46;
+RET_LABEL46:(void)0;
 }
-var145 = !var144;
-var142 = var145;
-goto RET_LABEL143;
-RET_LABEL143:(void)0;
 }
-var141 = var142;
+var43 = var45;
+goto RET_LABEL44;
+RET_LABEL44:(void)0;
 }
-if (var141){
-{
-{ /* Inline typing#AExpr#mtype= (self,var_ret) on <self:ASendExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_ret; /* _mtype on <self:ASendExpr> */
-RET_LABEL146:(void)0;
 }
+if (var43){
+var_useless = 1;
+} else {
 }
 } else {
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ASendExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ASendExpr> */
-RET_LABEL147:(void)0;
+core___core__Array___core__abstract_collection__SimpleCollection__add(var_mtypes, var_t); /* Direct call array$Array$add on <var_mtypes:Array[nullable MType]>*/
 }
 }
+{
+((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_21); /* next on <var_21:Iterator[AExpr]>*/
 }
-RET_LABEL:;
-}
-/* method typing#ASendExpr#property_node for (self: ASendExpr): ANode */
-val* nitc__typing___ASendExpr___property_node(val* self) {
-val* var /* : ANode */;
-var = self;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#ASendExpr#raw_arguments for (self: ASendExpr): Array[AExpr] */
-val* nitc__typing___ASendExpr___raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : Array[AExpr] */;
+BREAK_label: (void)0;
 {
-var1 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__compute_raw_arguments]))(self); /* compute_raw_arguments on <self:ASendExpr>*/
+((void(*)(val* self))((((long)var_21&3)?class_info[((long)var_21&3)]:var_21->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_21); /* finish on <var_21:Iterator[AExpr]>*/
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+if (var_mtype == NULL) {
+var48 = 1; /* is null */
+} else {
+var48 = 0; /* arg is null but recv is not */
 }
-/* method typing#ABinopExpr#compute_raw_arguments for (self: ABinopExpr): Array[AExpr] */
-val* nitc__typing___ABinopExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : Array[AExpr] */;
-val* var_ /* var : Array[AExpr] */;
-val* var2 /* : AExpr */;
-val* var4 /* : AExpr */;
-var1 = NEW_core__Array(&type_core__Array__nitc__AExpr);
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-core___core__Array___with_capacity(var1, 1l); /* Direct call array#Array#with_capacity on <var1:Array[AExpr]>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
+var53 = var_mtype == var_other12;
+var51 = var53;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
 }
-var_ = var1;
-{
-{ /* Inline parser_nodes#ABinopExpr#n_expr2 (self) on <self:ABinopExpr> */
-var4 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ABinopExpr> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2033);
-fatal_exit(1);
 }
-var2 = var4;
-RET_LABEL3:(void)0;
+var49 = var51;
+goto RET_LABEL50;
+RET_LABEL50:(void)0;
 }
+var48 = var49;
 }
+if (var48){
 {
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_, var2); /* Direct call array#AbstractArray#push on <var_:Array[AExpr]>*/
+{ /* Inline typing$AArrayExpr$element_mtype (self) on <self:AArrayExpr> */
+var56 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
+var54 = var56;
+RET_LABEL55:(void)0;
 }
-var = var_;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#ABinopExpr#property_name for (self: ABinopExpr): String */
-val* nitc__typing___ABinopExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
+if (var54 == NULL) {
+var57 = 0; /* is null */
+} else {
+var57 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var54,((val*)NULL)) on <var54:nullable MType> */
+var_other = ((val*)NULL);
 {
-var1 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__parser_nodes__ABinopExpr__operator]))(self); /* operator on <self:ABinopExpr>*/
+var60 = ((short int(*)(val* self, val* p0))(var54->class->vft[COLOR_core__kernel__Object___61d_61d]))(var54, var_other); /* == on <var54:nullable MType(MType)>*/
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var61 = !var60;
+var58 = var61;
+goto RET_LABEL59;
+RET_LABEL59:(void)0;
 }
-/* method typing#ABinopExpr#property_node for (self: ABinopExpr): ANode */
-val* nitc__typing___ABinopExpr___ASendExpr__property_node(val* self) {
-val* var /* : ANode */;
-val* var1 /* : Token */;
-val* var3 /* : Token */;
+var57 = var58;
+}
+if (var57){
 {
-{ /* Inline parser_nodes#ABinopExpr#n_op (self) on <self:ABinopExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ABinopExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2030);
-fatal_exit(1);
+{ /* Inline typing$AArrayExpr$element_mtype (self) on <self:AArrayExpr> */
+var64 = self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val; /* _element_mtype on <self:AArrayExpr> */
+var62 = var64;
+RET_LABEL63:(void)0;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
 }
+{
+core___core__Array___core__abstract_collection__SimpleCollection__add(var_mtypes, var62); /* Direct call array$Array$add on <var_mtypes:Array[nullable MType]>*/
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+} else {
 }
-/* method typing#AEqFormExpr#accept_typing for (self: AEqFormExpr, TypeVisitor) */
-void nitc__typing___AEqFormExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-var_v = p0;
 {
-((void(*)(val* self, val* p0))(self->class->vft[COLOR_nitc__typing___AEqFormExpr___AExpr__accept_typing]))(self, p0); /* accept_typing on <self:AEqFormExpr>*/
+var65 = nitc__typing___nitc__typing__TypeVisitor___merge_types(var_v, self, var_mtypes);
 }
-{
-nitc__typing___nitc__typing__TypeVisitor___null_test(var_v, self); /* Direct call typing#TypeVisitor#null_test on <var_v:TypeVisitor>*/
+var_mtype = var65;
+} else {
 }
-RET_LABEL:;
+if (var_mtype == NULL) {
+var67 = 1; /* is null */
+} else {
+var67 = 0; /* arg is null but recv is not */
 }
-/* method typing#AEqFormExpr#accept_post_typing for (self: AEqFormExpr, TypeVisitor) */
-void nitc__typing___AEqFormExpr___ANode__accept_post_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_mtype /* var mtype: nullable MType */;
-val* var4 /* : AExpr */;
-val* var6 /* : AExpr */;
-val* var7 /* : nullable MType */;
-val* var_mtype2 /* var mtype2: nullable MType */;
-short int var8 /* : Bool */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var12 /* : Bool */;
-short int var14 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var21 /* : Bool */;
-int cltype;
-int idtype;
-short int var22 /* : Bool */;
-val* var23 /* : AExpr */;
-val* var25 /* : AExpr */;
-short int var26 /* : Bool */;
-var_v = p0;
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other12 = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:AEqFormExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqFormExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other12) on <var_mtype:nullable MType(MType)> */
+var72 = var_mtype == var_other12;
+var70 = var72;
+goto RET_LABEL71;
+RET_LABEL71:(void)0;
 }
-var = var2;
-RET_LABEL1:(void)0;
 }
+var68 = var70;
+goto RET_LABEL69;
+RET_LABEL69:(void)0;
 }
-{
-var3 = ((val*(*)(val* self))(var->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var); /* mtype on <var:AExpr>*/
+var67 = var68;
 }
-var_mtype = var3;
-{
-{ /* Inline parser_nodes#ABinopExpr#n_expr2 (self) on <self:AEqFormExpr> */
-var6 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AEqFormExpr> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2033);
-fatal_exit(1);
+var_73 = var67;
+if (var67){
+var66 = var_73;
+} else {
+/* <var_mtype:nullable MType(MType)> isa MNullType */
+cltype = type_nitc__MNullType.color;
+idtype = type_nitc__MNullType.id;
+if(cltype >= var_mtype->type->table_size) {
+var74 = 0;
+} else {
+var74 = var_mtype->type->type_table[cltype] == idtype;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
+var66 = var74;
 }
+if (var66){
+if (unlikely(varonce==NULL)) {
+var75 = NEW_core__NativeArray((int)2l, &type_core__NativeArray__core__String);
+if (likely(varonce76!=NULL)) {
+var77 = varonce76;
+} else {
+var78 = "Type Error: ambiguous array type ";
+var80 = (val*)(33l<<2|1);
+var81 = (val*)(33l<<2|1);
+var82 = (val*)((long)(0)<<2|3);
+var83 = (val*)((long)(0)<<2|3);
+var79 = core__flat___CString___to_s_unsafe(var78, var80, var81, var82, var83);
+var77 = var79;
+varonce76 = var77;
 }
-{
-var7 = ((val*(*)(val* self))(var4->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var4); /* mtype on <var4:AExpr>*/
+((struct instance_core__NativeArray*)var75)->values[0]=var77;
+} else {
+var75 = varonce;
+varonce = NULL;
 }
-var_mtype2 = var7;
-if (var_mtype == NULL) {
-var9 = 1; /* is null */
+if (likely(varonce84!=NULL)) {
+var85 = varonce84;
 } else {
-var9 = 0; /* arg is null but recv is not */
+var86 = " ";
+var88 = (val*)(1l<<2|1);
+var89 = (val*)(1l<<2|1);
+var90 = (val*)((long)(0)<<2|3);
+var91 = (val*)((long)(0)<<2|3);
+var87 = core__flat___CString___to_s_unsafe(var86, var88, var89, var90, var91);
+var85 = var87;
+varonce84 = var85;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
-var14 = var_mtype == var_other;
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+var92 = core__abstract_text___Collection___join(var_mtypes, var85, ((val*)NULL));
 }
+((struct instance_core__NativeArray*)var75)->values[1]=var92;
+{
+var93 = ((val*(*)(val* self))(var75->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var75); /* native_to_s on <var75:NativeArray[String]>*/
 }
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-var9 = var10;
+varonce = var75;
+{
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var93); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var_ = var9;
-if (var9){
-var8 = var_;
+goto RET_LABEL;
 } else {
-if (var_mtype2 == NULL) {
-var15 = 1; /* is null */
+}
+if (var_useless){
+if (var_ntype == NULL) {
+var94 = 0; /* is null */
 } else {
-var15 = 0; /* arg is null but recv is not */
+var94 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_mtype2,((val*)NULL)) on <var_mtype2:nullable MType> */
+{ /* Inline kernel$Object$!= (var_ntype,((val*)NULL)) on <var_ntype:nullable AType> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_mtype2,var_other) on <var_mtype2:nullable MType(MType)> */
-var20 = var_mtype2 == var_other;
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-var16 = var18;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
-}
-var15 = var16;
-}
-var8 = var15;
+var97 = ((short int(*)(val* self, val* p0))(var_ntype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_ntype, var_other); /* == on <var_ntype:nullable AType(AType)>*/
 }
-if (var8){
-goto RET_LABEL;
-} else {
+var98 = !var97;
+var95 = var98;
+goto RET_LABEL96;
+RET_LABEL96:(void)0;
 }
-/* <var_mtype2:nullable MType(MType)> isa MNullType */
-cltype = type_nitc__MNullType.color;
-idtype = type_nitc__MNullType.id;
-if(cltype >= var_mtype2->type->table_size) {
-var21 = 0;
-} else {
-var21 = var_mtype2->type->type_table[cltype] == idtype;
+var94 = var95;
 }
-var22 = !var21;
-if (var22){
-goto RET_LABEL;
-} else {
+if (unlikely(!var94)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:AEqFormExpr> */
-var25 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqFormExpr> */
-if (unlikely(var25 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
+PRINT_ERROR("Runtime error: %s", "Assert failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1611);
 fatal_exit(1);
 }
-var23 = var25;
-RET_LABEL24:(void)0;
+{
+{ /* Inline typing$TypeVisitor$modelbuilder (var_v) on <var_v:TypeVisitor> */
+var101 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___modelbuilder].val; /* _modelbuilder on <var_v:TypeVisitor> */
+if (unlikely(var101 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _modelbuilder");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 35);
+fatal_exit(1);
 }
-{
-var26 = nitc__typing___nitc__typing__TypeVisitor___check_can_be_null(var_v, var23, var_mtype);
+var99 = var101;
+RET_LABEL100:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#AUnaryopExpr#property_name for (self: AUnaryopExpr): String */
-val* nitc__typing___AUnaryopExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-val* var1 /* : NativeArray[String] */;
-static val* varonce;
-static val* varonce2;
-val* var3 /* : String */;
-char* var4 /* : NativeString */;
-val* var5 /* : String */;
-val* var6 /* : String */;
-val* var7 /* : String */;
-if (unlikely(varonce==NULL)) {
-var1 = NEW_core__NativeArray(2l, &type_core__NativeArray__core__String);
-if (likely(varonce2!=NULL)) {
-var3 = varonce2;
+if (likely(varonce102!=NULL)) {
+var103 = varonce102;
+} else {
+var104 = "useless-type";
+var106 = (val*)(12l<<2|1);
+var107 = (val*)(12l<<2|1);
+var108 = (val*)((long)(0)<<2|3);
+var109 = (val*)((long)(0)<<2|3);
+var105 = core__flat___CString___to_s_unsafe(var104, var106, var107, var108, var109);
+var103 = var105;
+varonce102 = var103;
+}
+if (unlikely(varonce110==NULL)) {
+var111 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce112!=NULL)) {
+var113 = varonce112;
+} else {
+var114 = "Warning: useless type declaration `";
+var116 = (val*)(35l<<2|1);
+var117 = (val*)(35l<<2|1);
+var118 = (val*)((long)(0)<<2|3);
+var119 = (val*)((long)(0)<<2|3);
+var115 = core__flat___CString___to_s_unsafe(var114, var116, var117, var118, var119);
+var113 = var115;
+varonce112 = var113;
+}
+((struct instance_core__NativeArray*)var111)->values[0]=var113;
+if (likely(varonce120!=NULL)) {
+var121 = varonce120;
 } else {
-var4 = "unary ";
-var5 = core__flat___NativeString___to_s_full(var4, 6l, 6l);
-var3 = var5;
-varonce2 = var3;
+var122 = "` in literal Array since it can be inferred from the elements type.";
+var124 = (val*)(67l<<2|1);
+var125 = (val*)(67l<<2|1);
+var126 = (val*)((long)(0)<<2|3);
+var127 = (val*)((long)(0)<<2|3);
+var123 = core__flat___CString___to_s_unsafe(var122, var124, var125, var126, var127);
+var121 = var123;
+varonce120 = var121;
 }
-((struct instance_core__NativeArray*)var1)->values[0]=var3;
+((struct instance_core__NativeArray*)var111)->values[2]=var121;
 } else {
-var1 = varonce;
-varonce = NULL;
+var111 = varonce110;
+varonce110 = NULL;
 }
 {
-var6 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__parser_nodes__AUnaryopExpr__operator]))(self); /* operator on <self:AUnaryopExpr>*/
+var128 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_mtype); /* to_s on <var_mtype:nullable MType(MType)>*/
 }
-((struct instance_core__NativeArray*)var1)->values[1]=var6;
+((struct instance_core__NativeArray*)var111)->values[1]=var128;
 {
-var7 = ((val*(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var1); /* native_to_s on <var1:NativeArray[String]>*/
-}
-varonce = var1;
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var129 = ((val*(*)(val* self))(var111->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var111); /* native_to_s on <var111:NativeArray[String]>*/
 }
-/* method typing#AUnaryopExpr#compute_raw_arguments for (self: AUnaryopExpr): Array[AExpr] */
-val* nitc__typing___AUnaryopExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : Array[AExpr] */;
-var1 = NEW_core__Array(&type_core__Array__nitc__AExpr);
+varonce110 = var111;
 {
-core___core__Array___core__kernel__Object__init(var1); /* Direct call array#Array#init on <var1:Array[AExpr]>*/
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method typing#ACallExpr#property_name for (self: ACallExpr): String */
-val* nitc__typing___ACallExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
-val* var4 /* : TId */;
-val* var6 /* : TId */;
-val* var7 /* : String */;
-{
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
+nitc___nitc__ModelBuilder___warning(var99, var_ntype, var103, var129); /* Direct call modelbuilder_base$ModelBuilder$warning on <var99:ModelBuilder>*/
 }
+} else {
 }
 {
-{ /* Inline parser_nodes#AQid#n_id (var1) on <var1:AQid> */
-var6 = var1->attrs[COLOR_nitc__parser_nodes__AQid___n_id].val; /* _n_id on <var1:AQid> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_id");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1658);
-fatal_exit(1);
+{ /* Inline typing$AArrayExpr$element_mtype= (self,var_mtype) on <self:AArrayExpr> */
+self->attrs[COLOR_nitc__typing__AArrayExpr___element_mtype].val = var_mtype; /* _element_mtype on <self:AArrayExpr> */
+RET_LABEL130:(void)0;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
 }
+if (likely(varonce131!=NULL)) {
+var132 = varonce131;
+} else {
+var133 = "Array";
+var135 = (val*)(5l<<2|1);
+var136 = (val*)(5l<<2|1);
+var137 = (val*)((long)(0)<<2|3);
+var138 = (val*)((long)(0)<<2|3);
+var134 = core__flat___CString___to_s_unsafe(var133, var135, var136, var137, var138);
+var132 = var134;
+varonce131 = var132;
 }
 {
-var7 = nitc__lexer_work___Token___text(var4);
+var139 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var132);
 }
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var_mclass = var139;
+if (var_mclass == NULL) {
+var140 = 1; /* is null */
+} else {
+var140 = 0; /* arg is null but recv is not */
 }
-/* method typing#ACallExpr#property_node for (self: ACallExpr): ANode */
-val* nitc__typing___ACallExpr___ASendExpr__property_node(val* self) {
-val* var /* : ANode */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
+if (0) {
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
+var_other12 = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other12) on <var_mclass:nullable MClass(MClass)> */
+var145 = var_mclass == var_other12;
+var143 = var145;
+goto RET_LABEL144;
+RET_LABEL144:(void)0;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
 }
+var141 = var143;
+goto RET_LABEL142;
+RET_LABEL142:(void)0;
 }
-var = var1;
+var140 = var141;
+}
+if (var140){
 goto RET_LABEL;
-RET_LABEL:;
-return var;
+} else {
 }
-/* method typing#ACallExpr#compute_raw_arguments for (self: ACallExpr): Array[AExpr] */
-val* nitc__typing___ACallExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
+var146 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-{ /* Inline parser_nodes#ACallFormExpr#n_args (self) on <self:ACallExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_args].val; /* _n_args on <self:ACallExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2299);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
-}
+core___core__Array___with_capacity(var146, 1l); /* Direct call array$Array$with_capacity on <var146:Array[MType]>*/
 }
+var_147 = var146;
 {
-var4 = nitc__typing___AExprs___to_a(var1);
-}
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_147, var_mtype); /* Direct call array$AbstractArray$push on <var_147:Array[MType]>*/
 }
-/* method typing#ACallAssignExpr#property_name for (self: ACallAssignExpr): String */
-val* nitc__typing___ACallAssignExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
-val* var4 /* : TId */;
-val* var6 /* : TId */;
-val* var7 /* : String */;
-static val* varonce;
-val* var8 /* : String */;
-char* var9 /* : NativeString */;
-val* var10 /* : String */;
-val* var11 /* : String */;
 {
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallAssignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallAssignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
+var148 = nitc___nitc__MClass___get_mtype(var_mclass, var_147);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var_array_mtype = var148;
+if (likely(varonce149!=NULL)) {
+var150 = varonce149;
+} else {
+var151 = "with_capacity";
+var153 = (val*)(13l<<2|1);
+var154 = (val*)(13l<<2|1);
+var155 = (val*)((long)(0)<<2|3);
+var156 = (val*)((long)(0)<<2|3);
+var152 = core__flat___CString___to_s_unsafe(var151, var153, var154, var155, var156);
+var150 = var152;
+varonce149 = var150;
 }
+{
+var157 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_array_mtype, var150, 0);
 }
 {
-{ /* Inline parser_nodes#AQid#n_id (var1) on <var1:AQid> */
-var6 = var1->attrs[COLOR_nitc__parser_nodes__AQid___n_id].val; /* _n_id on <var1:AQid> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_id");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1658);
-fatal_exit(1);
+{ /* Inline typing$AArrayExpr$with_capacity_callsite= (self,var157) on <self:AArrayExpr> */
+self->attrs[COLOR_nitc__typing__AArrayExpr___with_capacity_callsite].val = var157; /* _with_capacity_callsite on <self:AArrayExpr> */
+RET_LABEL158:(void)0;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
 }
+if (likely(varonce159!=NULL)) {
+var160 = varonce159;
+} else {
+var161 = "push";
+var163 = (val*)(4l<<2|1);
+var164 = (val*)(4l<<2|1);
+var165 = (val*)((long)(0)<<2|3);
+var166 = (val*)((long)(0)<<2|3);
+var162 = core__flat___CString___to_s_unsafe(var161, var163, var164, var165, var166);
+var160 = var162;
+varonce159 = var160;
 }
 {
-var7 = nitc__lexer_work___Token___text(var4);
-}
-if (likely(varonce!=NULL)) {
-var8 = varonce;
-} else {
-var9 = "=";
-var10 = core__flat___NativeString___to_s_full(var9, 1l, 1l);
-var8 = var10;
-varonce = var8;
+var167 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_array_mtype, var160, 0);
 }
 {
-var11 = ((val*(*)(val* self, val* p0))(var7->class->vft[COLOR_core__abstract_text__String___43d]))(var7, var8); /* + on <var7:String>*/
+{ /* Inline typing$AArrayExpr$push_callsite= (self,var167) on <self:AArrayExpr> */
+self->attrs[COLOR_nitc__typing__AArrayExpr___push_callsite].val = var167; /* _push_callsite on <self:AArrayExpr> */
+RET_LABEL168:(void)0;
 }
-var = var11;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#ACallAssignExpr#property_node for (self: ACallAssignExpr): ANode */
-val* nitc__typing___ACallAssignExpr___ASendExpr__property_node(val* self) {
-val* var /* : ANode */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
 {
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallAssignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallAssignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
+{ /* Inline typing$AExpr$mtype= (self,var_array_mtype) on <self:AArrayExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_array_mtype; /* _mtype on <self:AArrayExpr> */
+RET_LABEL169:(void)0;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
 }
+RET_LABEL:;
 }
+/* method typing$ARangeExpr$init_callsite for (self: ARangeExpr): nullable CallSite */
+val* nitc__typing___ARangeExpr___init_callsite(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val; /* _init_callsite on <self:ARangeExpr> */
 var = var1;
-goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method typing#ACallAssignExpr#compute_raw_arguments for (self: ACallAssignExpr): Array[AExpr] */
-val* nitc__typing___ACallAssignExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
-val* var_res /* var res: Array[AExpr] */;
-val* var5 /* : AExpr */;
-val* var7 /* : AExpr */;
-{
-{ /* Inline parser_nodes#ACallFormExpr#n_args (self) on <self:ACallAssignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_args].val; /* _n_args on <self:ACallAssignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2299);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
+/* method typing$ARangeExpr$init_callsite= for (self: ARangeExpr, nullable CallSite) */
+void nitc__typing___ARangeExpr___init_callsite_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val = p0; /* _init_callsite on <self:ARangeExpr> */
+RET_LABEL:;
 }
+/* method typing$ARangeExpr$accept_typing for (self: ARangeExpr, TypeVisitor) */
+void nitc__typing___ARangeExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+static val* varonce;
+val* var /* : String */;
+char* var1 /* : CString */;
+val* var2 /* : String */;
+val* var3 /* : nullable Int */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Bool */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable MClass */;
+val* var_discrete_class /* var discrete_class: nullable MClass */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
+val* var14 /* : MClassDef */;
+val* var16 /* : MClassDef */;
+val* var17 /* : MClassType */;
+val* var19 /* : MClassType */;
+val* var_discrete_type /* var discrete_type: MClassType */;
+val* var20 /* : AExpr */;
+val* var22 /* : AExpr */;
+val* var23 /* : nullable MType */;
+val* var_t1 /* var t1: nullable MType */;
+val* var24 /* : AExpr */;
+val* var26 /* : AExpr */;
+val* var27 /* : nullable MType */;
+val* var_t2 /* var t2: nullable MType */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
+short int var34 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var35 /* : Bool */;
+short int var36 /* : Bool */;
+short int var38 /* : Bool */;
+short int var40 /* : Bool */;
+static val* varonce41;
+val* var42 /* : String */;
+char* var43 /* : CString */;
+val* var44 /* : String */;
+val* var45 /* : nullable Int */;
+val* var46 /* : nullable Int */;
+val* var47 /* : nullable Bool */;
+val* var48 /* : nullable Bool */;
+val* var49 /* : nullable MClass */;
+val* var_mclass /* var mclass: nullable MClass */;
+short int var50 /* : Bool */;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+short int var55 /* : Bool */;
+short int var56 /* : Bool */;
+val* var57 /* : Array[MType] */;
+val* var_58 /* var : Array[MType] */;
+val* var59 /* : MClassType */;
+val* var_mtype /* var mtype: nullable Object */;
+short int var60 /* : Bool */;
+val* var61 /* : Array[MType] */;
+val* var_62 /* var : Array[MType] */;
+val* var63 /* : MClassType */;
+val* var65 /* : NativeArray[String] */;
+static val* varonce64;
+static val* varonce66;
+val* var67 /* : String */;
+char* var68 /* : CString */;
+val* var69 /* : String */;
+val* var70 /* : nullable Int */;
+val* var71 /* : nullable Int */;
+val* var72 /* : nullable Bool */;
+val* var73 /* : nullable Bool */;
+static val* varonce74;
+val* var75 /* : String */;
+char* var76 /* : CString */;
+val* var77 /* : String */;
+val* var78 /* : nullable Int */;
+val* var79 /* : nullable Int */;
+val* var80 /* : nullable Bool */;
+val* var81 /* : nullable Bool */;
+static val* varonce82;
+val* var83 /* : String */;
+char* var84 /* : CString */;
+val* var85 /* : String */;
+val* var86 /* : nullable Int */;
+val* var87 /* : nullable Int */;
+val* var88 /* : nullable Bool */;
+val* var89 /* : nullable Bool */;
+val* var90 /* : String */;
+val* var91 /* : String */;
+val* var92 /* : String */;
+short int var94 /* : Bool */;
+int cltype;
+int idtype;
+static val* varonce95;
+val* var96 /* : String */;
+char* var97 /* : CString */;
+val* var98 /* : String */;
+val* var99 /* : nullable Int */;
+val* var100 /* : nullable Int */;
+val* var101 /* : nullable Bool */;
+val* var102 /* : nullable Bool */;
+val* var103 /* : nullable CallSite */;
+val* var_callsite /* var callsite: nullable Object */;
+short int var104 /* : Bool */;
+int cltype105;
+int idtype106;
+static val* varonce107;
+val* var108 /* : String */;
+char* var109 /* : CString */;
+val* var110 /* : String */;
+val* var111 /* : nullable Int */;
+val* var112 /* : nullable Int */;
+val* var113 /* : nullable Bool */;
+val* var114 /* : nullable Bool */;
+val* var115 /* : nullable CallSite */;
+var_v = p0;
+if (likely(varonce!=NULL)) {
+var = varonce;
+} else {
+var1 = "Discrete";
+var3 = (val*)(8l<<2|1);
+var4 = (val*)(8l<<2|1);
+var5 = (val*)((long)(0)<<2|3);
+var6 = (val*)((long)(0)<<2|3);
+var2 = core__flat___CString___to_s_unsafe(var1, var3, var4, var5, var6);
+var = var2;
+varonce = var;
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+var7 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var);
 }
-var_res = var4;
+var_discrete_class = var7;
+if (var_discrete_class == NULL) {
+var8 = 1; /* is null */
+} else {
+var8 = 0; /* arg is null but recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$== (var_discrete_class,((val*)NULL)) on <var_discrete_class:nullable MClass> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AAssignFormExpr#n_value (self) on <self:ACallAssignExpr> */
-var7 = self->attrs[COLOR_nitc__parser_nodes__AAssignFormExpr___n_value].val; /* _n_value on <self:ACallAssignExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1992);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_discrete_class,var_other) on <var_discrete_class:nullable MClass(MClass)> */
+var13 = var_discrete_class == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-var5 = var7;
-RET_LABEL6:(void)0;
 }
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
-{
-core___core__Array___core__abstract_collection__SimpleCollection__add(var_res, var5); /* Direct call array#Array#add on <var_res:Array[AExpr]>*/
+var8 = var9;
 }
-var = var_res;
+if (var8){
 goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method typing#ABraExpr#property_name for (self: ABraExpr): String */
-val* nitc__typing___ABraExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-val* var3 /* : String */;
-if (likely(varonce!=NULL)) {
-var1 = varonce;
 } else {
-var2 = "[]";
-var3 = core__flat___NativeString___to_s_full(var2, 2l, 2l);
-var1 = var3;
-varonce = var1;
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#ABraExpr#compute_raw_arguments for (self: ABraExpr): Array[AExpr] */
-val* nitc__typing___ABraExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
 {
-{ /* Inline parser_nodes#ABraFormExpr#n_args (self) on <self:ABraExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ABraFormExpr___n_args].val; /* _n_args on <self:ABraExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2368);
+{ /* Inline model$MClass$intro (var_discrete_class) on <var_discrete_class:nullable MClass(MClass)> */
+var16 = var_discrete_class->attrs[COLOR_nitc__model__MClass___intro].val; /* _intro on <var_discrete_class:nullable MClass(MClass)> */
+if (unlikely(var16 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _intro");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 496);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var14 = var16;
+RET_LABEL15:(void)0;
 }
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+{ /* Inline model$MClassDef$bound_mtype (var14) on <var14:MClassDef> */
+var19 = var14->attrs[COLOR_nitc__model__MClassDef___bound_mtype].val; /* _bound_mtype on <var14:MClassDef> */
+if (unlikely(var19 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _bound_mtype");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 594);
+fatal_exit(1);
 }
-/* method typing#ABraAssignExpr#property_name for (self: ABraAssignExpr): String */
-val* nitc__typing___ABraAssignExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-val* var3 /* : String */;
-if (likely(varonce!=NULL)) {
-var1 = varonce;
-} else {
-var2 = "[]=";
-var3 = core__flat___NativeString___to_s_full(var2, 3l, 3l);
-var1 = var3;
-varonce = var1;
+var17 = var19;
+RET_LABEL18:(void)0;
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method typing#ABraAssignExpr#compute_raw_arguments for (self: ABraAssignExpr): Array[AExpr] */
-val* nitc__typing___ABraAssignExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
-val* var_res /* var res: Array[AExpr] */;
-val* var5 /* : AExpr */;
-val* var7 /* : AExpr */;
-{
-{ /* Inline parser_nodes#ABraFormExpr#n_args (self) on <self:ABraAssignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ABraFormExpr___n_args].val; /* _n_args on <self:ABraAssignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2368);
+var_discrete_type = var17;
+{
+{ /* Inline parser_nodes$ARangeExpr$n_expr (self) on <self:ARangeExpr> */
+var22 = self->attrs[COLOR_nitc__parser_nodes__ARangeExpr___n_expr].val; /* _n_expr on <self:ARangeExpr> */
+if (unlikely(var22 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2502);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var20 = var22;
+RET_LABEL21:(void)0;
 }
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+var23 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var20, var_discrete_type);
 }
-var_res = var4;
+var_t1 = var23;
 {
-{ /* Inline parser_nodes#AAssignFormExpr#n_value (self) on <self:ABraAssignExpr> */
-var7 = self->attrs[COLOR_nitc__parser_nodes__AAssignFormExpr___n_value].val; /* _n_value on <self:ABraAssignExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1992);
+{ /* Inline parser_nodes$ARangeExpr$n_expr2 (self) on <self:ARangeExpr> */
+var26 = self->attrs[COLOR_nitc__parser_nodes__ARangeExpr___n_expr2].val; /* _n_expr2 on <self:ARangeExpr> */
+if (unlikely(var26 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2508);
 fatal_exit(1);
 }
-var5 = var7;
-RET_LABEL6:(void)0;
+var24 = var26;
+RET_LABEL25:(void)0;
 }
 }
 {
-core___core__Array___core__abstract_collection__SimpleCollection__add(var_res, var5); /* Direct call array#Array#add on <var_res:Array[AExpr]>*/
+var27 = nitc__typing___nitc__typing__TypeVisitor___visit_expr_subtype(var_v, var24, var_discrete_type);
 }
-var = var_res;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var_t2 = var27;
+if (var_t1 == NULL) {
+var29 = 1; /* is null */
+} else {
+var29 = 0; /* arg is null but recv is not */
 }
-/* method typing#ASendReassignFormExpr#write_callsite for (self: ASendReassignFormExpr): nullable CallSite */
-val* nitc__typing___ASendReassignFormExpr___write_callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__ASendReassignFormExpr___write_callsite].val; /* _write_callsite on <self:ASendReassignFormExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+if (0) {
+{ /* Inline kernel$Object$== (var_t1,((val*)NULL)) on <var_t1:nullable MType> */
+var_other = ((val*)NULL);
+{
+{ /* Inline kernel$Object$is_same_instance (var_t1,var_other) on <var_t1:nullable MType(MType)> */
+var34 = var_t1 == var_other;
+var32 = var34;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
 }
-/* method typing#ASendReassignFormExpr#write_callsite= for (self: ASendReassignFormExpr, nullable CallSite) */
-void nitc__typing___ASendReassignFormExpr___write_callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASendReassignFormExpr___write_callsite].val = p0; /* _write_callsite on <self:ASendReassignFormExpr> */
-RET_LABEL:;
 }
-/* method typing#ASendReassignFormExpr#accept_typing for (self: ASendReassignFormExpr, TypeVisitor) */
-void nitc__typing___ASendReassignFormExpr___AExpr__accept_typing(val* self, val* p0) {
-val* var_v /* var v: TypeVisitor */;
-val* var /* : AExpr */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable MType */;
-val* var_recvtype /* var recvtype: nullable MType */;
-val* var4 /* : String */;
-val* var_name /* var name: String */;
-val* var5 /* : ANode */;
-val* var_node /* var node: ANode */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var9 /* : Bool */;
-short int var11 /* : Bool */;
-val* var12 /* : AExpr */;
-val* var14 /* : AExpr */;
-short int var15 /* : Bool */;
-int cltype;
-int idtype;
-short int var_for_self /* var for_self: Bool */;
-val* var16 /* : nullable CallSite */;
-val* var_callsite /* var callsite: nullable CallSite */;
-short int var17 /* : Bool */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-val* var24 /* : Array[AExpr] */;
-val* var_args /* var args: Array[AExpr] */;
-short int var25 /* : Bool */;
-val* var26 /* : MSignature */;
-val* var28 /* : MSignature */;
-val* var29 /* : nullable MType */;
-val* var31 /* : nullable MType */;
-val* var_readtype /* var readtype: nullable MType */;
-short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-short int var35 /* : Bool */;
-short int var37 /* : Bool */;
-val* var38 /* : NativeArray[String] */;
-static val* varonce;
-static val* varonce39;
-val* var40 /* : String */;
-char* var41 /* : NativeString */;
-val* var42 /* : String */;
-static val* varonce43;
-val* var44 /* : String */;
-char* var45 /* : NativeString */;
-val* var46 /* : String */;
-val* var47 /* : String */;
-static val* varonce48;
-val* var49 /* : String */;
-char* var50 /* : NativeString */;
-val* var51 /* : String */;
-val* var52 /* : String */;
-val* var53 /* : AExpr */;
-val* var55 /* : AExpr */;
-short int var56 /* : Bool */;
-int cltype57;
-int idtype58;
-val* var59 /* : nullable CallSite */;
-val* var_wcallsite /* var wcallsite: nullable CallSite */;
-short int var60 /* : Bool */;
-short int var61 /* : Bool */;
-short int var63 /* : Bool */;
-short int var65 /* : Bool */;
-val* var67 /* : MSignature */;
-val* var69 /* : MSignature */;
-val* var70 /* : Array[MParameter] */;
-val* var72 /* : Array[MParameter] */;
-val* var73 /* : nullable Object */;
-val* var74 /* : MType */;
-val* var76 /* : MType */;
-val* var77 /* : nullable MType */;
-val* var_wtype /* var wtype: nullable MType */;
-short int var78 /* : Bool */;
-short int var79 /* : Bool */;
-short int var81 /* : Bool */;
-short int var83 /* : Bool */;
-val* var84 /* : Array[nullable Object] */;
-val* var85 /* : AExpr */;
-val* var87 /* : AExpr */;
-short int var88 /* : Bool */;
-var_v = p0;
-{
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:ASendReassignFormExpr> */
-var2 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ASendReassignFormExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
-fatal_exit(1);
+var30 = var32;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
 }
-var = var2;
-RET_LABEL1:(void)0;
+var29 = var30;
 }
+var_ = var29;
+if (var29){
+var28 = var_;
+} else {
+if (var_t2 == NULL) {
+var35 = 1; /* is null */
+} else {
+var35 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_t2,((val*)NULL)) on <var_t2:nullable MType> */
+var_other = ((val*)NULL);
 {
-var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+{ /* Inline kernel$Object$is_same_instance (var_t2,var_other) on <var_t2:nullable MType(MType)> */
+var40 = var_t2 == var_other;
+var38 = var40;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
-var_recvtype = var3;
-{
-var4 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__property_name]))(self); /* property_name on <self:ASendReassignFormExpr>*/
 }
-var_name = var4;
+var36 = var38;
+goto RET_LABEL37;
+RET_LABEL37:(void)0;
+}
+var35 = var36;
+}
+var28 = var35;
+}
+if (var28){
+goto RET_LABEL;
+} else {
+}
+if (likely(varonce41!=NULL)) {
+var42 = varonce41;
+} else {
+var43 = "Range";
+var45 = (val*)(5l<<2|1);
+var46 = (val*)(5l<<2|1);
+var47 = (val*)((long)(0)<<2|3);
+var48 = (val*)((long)(0)<<2|3);
+var44 = core__flat___CString___to_s_unsafe(var43, var45, var46, var47, var48);
+var42 = var44;
+varonce41 = var42;
+}
 {
-var5 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__property_node]))(self); /* property_node on <self:ASendReassignFormExpr>*/
+var49 = nitc__typing___nitc__typing__TypeVisitor___get_mclass(var_v, self, var42);
 }
-var_node = var5;
-if (var_recvtype == NULL) {
-var6 = 1; /* is null */
+var_mclass = var49;
+if (var_mclass == NULL) {
+var50 = 1; /* is null */
 } else {
-var6 = 0; /* arg is null but recv is not */
+var50 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_recvtype,((val*)NULL)) on <var_recvtype:nullable MType> */
+{ /* Inline kernel$Object$== (var_mclass,((val*)NULL)) on <var_mclass:nullable MClass> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_recvtype,var_other) on <var_recvtype:nullable MType(MType)> */
-var11 = var_recvtype == var_other;
-var9 = var11;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var_mclass,var_other) on <var_mclass:nullable MClass(MClass)> */
+var55 = var_mclass == var_other;
+var53 = var55;
+goto RET_LABEL54;
+RET_LABEL54:(void)0;
 }
 }
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var51 = var53;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
 }
-var6 = var7;
+var50 = var51;
 }
-if (var6){
+if (var50){
 goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:ASendReassignFormExpr> */
-var14 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ASendReassignFormExpr> */
-if (unlikely(var14 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
-fatal_exit(1);
+var56 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_t1, var_t2);
 }
-var12 = var14;
-RET_LABEL13:(void)0;
+if (var56){
+var57 = NEW_core__Array(&type_core__Array__nitc__MType);
+{
+core___core__Array___with_capacity(var57, 1l); /* Direct call array$Array$with_capacity on <var57:Array[MType]>*/
 }
+var_58 = var57;
+{
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_58, var_t2); /* Direct call array$AbstractArray$push on <var_58:Array[MType]>*/
 }
-/* <var12:AExpr> isa ASelfExpr */
-cltype = type_nitc__ASelfExpr.color;
-idtype = type_nitc__ASelfExpr.id;
-if(cltype >= var12->type->table_size) {
-var15 = 0;
+{
+var59 = nitc___nitc__MClass___get_mtype(var_mclass, var_58);
+}
+var_mtype = var59;
 } else {
-var15 = var12->type->type_table[cltype] == idtype;
+{
+var60 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_t2, var_t1);
 }
-var_for_self = var15;
+if (var60){
+var61 = NEW_core__Array(&type_core__Array__nitc__MType);
 {
-var16 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var_node, var_recvtype, var_name, var_for_self);
+core___core__Array___with_capacity(var61, 1l); /* Direct call array$Array$with_capacity on <var61:Array[MType]>*/
 }
-var_callsite = var16;
-if (var_callsite == NULL) {
-var17 = 1; /* is null */
-} else {
-var17 = 0; /* arg is null but recv is not */
+var_62 = var61;
+{
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_62, var_t1); /* Direct call array$AbstractArray$push on <var_62:Array[MType]>*/
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_callsite,((val*)NULL)) on <var_callsite:nullable CallSite> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_callsite,var_other) on <var_callsite:nullable CallSite(CallSite)> */
-var22 = var_callsite == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+var63 = nitc___nitc__MClass___get_mtype(var_mclass, var_62);
 }
+var_mtype = var63;
+} else {
+if (unlikely(varonce64==NULL)) {
+var65 = NEW_core__NativeArray((int)5l, &type_core__NativeArray__core__String);
+if (likely(varonce66!=NULL)) {
+var67 = varonce66;
+} else {
+var68 = "Type Error: cannot create range: `";
+var70 = (val*)(34l<<2|1);
+var71 = (val*)(34l<<2|1);
+var72 = (val*)((long)(0)<<2|3);
+var73 = (val*)((long)(0)<<2|3);
+var69 = core__flat___CString___to_s_unsafe(var68, var70, var71, var72, var73);
+var67 = var69;
+varonce66 = var67;
 }
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+((struct instance_core__NativeArray*)var65)->values[0]=var67;
+if (likely(varonce74!=NULL)) {
+var75 = varonce74;
+} else {
+var76 = "` vs `";
+var78 = (val*)(6l<<2|1);
+var79 = (val*)(6l<<2|1);
+var80 = (val*)((long)(0)<<2|3);
+var81 = (val*)((long)(0)<<2|3);
+var77 = core__flat___CString___to_s_unsafe(var76, var78, var79, var80, var81);
+var75 = var77;
+varonce74 = var75;
 }
-var17 = var18;
+((struct instance_core__NativeArray*)var65)->values[2]=var75;
+if (likely(varonce82!=NULL)) {
+var83 = varonce82;
+} else {
+var84 = "`.";
+var86 = (val*)(2l<<2|1);
+var87 = (val*)(2l<<2|1);
+var88 = (val*)((long)(0)<<2|3);
+var89 = (val*)((long)(0)<<2|3);
+var85 = core__flat___CString___to_s_unsafe(var84, var86, var87, var88, var89);
+var83 = var85;
+varonce82 = var83;
 }
-if (var17){
-goto RET_LABEL;
+((struct instance_core__NativeArray*)var65)->values[4]=var83;
 } else {
+var65 = varonce64;
+varonce64 = NULL;
 }
 {
-{ /* Inline typing#ASendExpr#callsite= (self,var_callsite) on <self:ASendReassignFormExpr> */
-self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val = var_callsite; /* _callsite on <self:ASendReassignFormExpr> */
-RET_LABEL23:(void)0;
-}
+var90 = ((val*(*)(val* self))(var_t1->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t1); /* to_s on <var_t1:nullable MType(MType)>*/
 }
+((struct instance_core__NativeArray*)var65)->values[1]=var90;
 {
-var24 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__compute_raw_arguments]))(self); /* compute_raw_arguments on <self:ASendReassignFormExpr>*/
+var91 = ((val*(*)(val* self))(var_t2->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_t2); /* to_s on <var_t2:nullable MType(MType)>*/
 }
-var_args = var24;
+((struct instance_core__NativeArray*)var65)->values[3]=var91;
 {
-var25 = nitc___nitc__CallSite___check_signature(var_callsite, var_v, var_node, var_args);
+var92 = ((val*(*)(val* self))(var65->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var65); /* native_to_s on <var65:NativeArray[String]>*/
 }
+varonce64 = var65;
 {
-{ /* Inline typing#CallSite#msignature (var_callsite) on <var_callsite:nullable CallSite(CallSite)> */
-var28 = var_callsite->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_callsite:nullable CallSite(CallSite)> */
-if (unlikely(var28 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 660);
-fatal_exit(1);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var92); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var26 = var28;
-RET_LABEL27:(void)0;
+goto RET_LABEL;
 }
 }
 {
-{ /* Inline model#MSignature#return_mtype (var26) on <var26:MSignature> */
-var31 = var26->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var26:MSignature> */
-var29 = var31;
-RET_LABEL30:(void)0;
+{ /* Inline typing$AExpr$mtype= (self,var_mtype) on <self:ARangeExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:ARangeExpr> */
+RET_LABEL93:(void)0;
 }
 }
-var_readtype = var29;
-if (var_readtype == NULL) {
-var32 = 1; /* is null */
+/* <self:ARangeExpr> isa ACrangeExpr */
+cltype = type_nitc__ACrangeExpr.color;
+idtype = type_nitc__ACrangeExpr.id;
+if(cltype >= self->type->table_size) {
+var94 = 0;
 } else {
-var32 = 0; /* arg is null but recv is not */
+var94 = self->type->type_table[cltype] == idtype;
+}
+if (var94){
+if (likely(varonce95!=NULL)) {
+var96 = varonce95;
+} else {
+var97 = "init";
+var99 = (val*)(4l<<2|1);
+var100 = (val*)(4l<<2|1);
+var101 = (val*)((long)(0)<<2|3);
+var102 = (val*)((long)(0)<<2|3);
+var98 = core__flat___CString___to_s_unsafe(var97, var99, var100, var101, var102);
+var96 = var98;
+varonce95 = var96;
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_readtype,((val*)NULL)) on <var_readtype:nullable MType> */
-var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_readtype,var_other) on <var_readtype:nullable MType(MType)> */
-var37 = var_readtype == var_other;
-var35 = var37;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+var103 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var96, 0);
 }
+var_callsite = var103;
+} else {
+/* <self:ARangeExpr> isa AOrangeExpr */
+cltype105 = type_nitc__AOrangeExpr.color;
+idtype106 = type_nitc__AOrangeExpr.id;
+if(cltype105 >= self->type->table_size) {
+var104 = 0;
+} else {
+var104 = self->type->type_table[cltype105] == idtype106;
 }
-var33 = var35;
-goto RET_LABEL34;
-RET_LABEL34:(void)0;
+if (var104){
+if (likely(varonce107!=NULL)) {
+var108 = varonce107;
+} else {
+var109 = "without_last";
+var111 = (val*)(12l<<2|1);
+var112 = (val*)(12l<<2|1);
+var113 = (val*)((long)(0)<<2|3);
+var114 = (val*)((long)(0)<<2|3);
+var110 = core__flat___CString___to_s_unsafe(var109, var111, var112, var113, var114);
+var108 = var110;
+varonce107 = var108;
 }
-var32 = var33;
+{
+var115 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, self, var_mtype, var108, 0);
 }
-if (var32){
-if (unlikely(varonce==NULL)) {
-var38 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce39!=NULL)) {
-var40 = varonce39;
+var_callsite = var115;
 } else {
-var41 = "Error: `";
-var42 = core__flat___NativeString___to_s_full(var41, 8l, 8l);
-var40 = var42;
-varonce39 = var40;
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Aborted");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1660);
+fatal_exit(1);
+}
+}
+{
+{ /* Inline typing$ARangeExpr$init_callsite= (self,var_callsite) on <self:ARangeExpr> */
+self->attrs[COLOR_nitc__typing__ARangeExpr___init_callsite].val = var_callsite; /* _init_callsite on <self:ARangeExpr> */
+RET_LABEL116:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method typing$ANullExpr$accept_typing for (self: ANullExpr, TypeVisitor) */
+void nitc__typing___ANullExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : MModule */;
+val* var2 /* : MModule */;
+val* var3 /* : Model */;
+val* var5 /* : Model */;
+val* var6 /* : MNullType */;
+val* var8 /* : MNullType */;
+var_v = p0;
+{
+{ /* Inline typing$TypeVisitor$mmodule (var_v) on <var_v:TypeVisitor> */
+var2 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
+fatal_exit(1);
 }
-((struct instance_core__NativeArray*)var38)->values[0]=var40;
-if (likely(varonce43!=NULL)) {
-var44 = varonce43;
-} else {
-var45 = "` is not a function.";
-var46 = core__flat___NativeString___to_s_full(var45, 20l, 20l);
-var44 = var46;
-varonce43 = var44;
+var = var2;
+RET_LABEL1:(void)0;
 }
-((struct instance_core__NativeArray*)var38)->values[2]=var44;
-} else {
-var38 = varonce;
-varonce = NULL;
 }
-((struct instance_core__NativeArray*)var38)->values[1]=var_name;
 {
-var47 = ((val*(*)(val* self))(var38->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var38); /* native_to_s on <var38:NativeArray[String]>*/
+{ /* Inline mmodule$MModule$model (var) on <var:MModule> */
+var5 = var->attrs[COLOR_nitc__mmodule__MModule___model].val; /* _model on <var:MModule> */
+if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-varonce = var38;
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, var_node, var47); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _model");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__mmodule, 77);
+fatal_exit(1);
 }
-goto RET_LABEL;
-} else {
+var3 = var5;
+RET_LABEL4:(void)0;
 }
-if (likely(varonce48!=NULL)) {
-var49 = varonce48;
-} else {
-var50 = "=";
-var51 = core__flat___NativeString___to_s_full(var50, 1l, 1l);
-var49 = var51;
-varonce48 = var49;
 }
 {
-var52 = ((val*(*)(val* self, val* p0))(var_name->class->vft[COLOR_core__abstract_text__String___43d]))(var_name, var49); /* + on <var_name:String>*/
+{ /* Inline model$Model$null_type (var3) on <var3:Model> */
+var8 = var3->attrs[COLOR_nitc__model__Model___null_type].val; /* _null_type on <var3:Model> */
+if (unlikely(var8 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline parser_nodes#ASendExpr#n_expr (self) on <self:ASendReassignFormExpr> */
-var55 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ASendReassignFormExpr> */
-if (unlikely(var55 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2022);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _null_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 103);
 fatal_exit(1);
 }
-var53 = var55;
-RET_LABEL54:(void)0;
-}
+var6 = var8;
+RET_LABEL7:(void)0;
 }
-/* <var53:AExpr> isa ASelfExpr */
-cltype57 = type_nitc__ASelfExpr.color;
-idtype58 = type_nitc__ASelfExpr.id;
-if(cltype57 >= var53->type->table_size) {
-var56 = 0;
-} else {
-var56 = var53->type->type_table[cltype57] == idtype58;
 }
 {
-var59 = nitc__typing___nitc__typing__TypeVisitor___get_method(var_v, var_node, var_recvtype, var52, var56);
+{ /* Inline typing$AExpr$mtype= (self,var6) on <self:ANullExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var6; /* _mtype on <self:ANullExpr> */
+RET_LABEL9:(void)0;
 }
-var_wcallsite = var59;
-if (var_wcallsite == NULL) {
-var60 = 1; /* is null */
-} else {
-var60 = 0; /* arg is null but recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#== (var_wcallsite,((val*)NULL)) on <var_wcallsite:nullable CallSite> */
-var_other = ((val*)NULL);
-{
-{ /* Inline kernel#Object#is_same_instance (var_wcallsite,var_other) on <var_wcallsite:nullable CallSite(CallSite)> */
-var65 = var_wcallsite == var_other;
-var63 = var65;
-goto RET_LABEL64;
-RET_LABEL64:(void)0;
+RET_LABEL:;
+}
+/* method typing$AIsaExpr$cast_type for (self: AIsaExpr): nullable MType */
+val* nitc__typing___AIsaExpr___cast_type(val* self) {
+val* var /* : nullable MType */;
+val* var1 /* : nullable MType */;
+var1 = self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val; /* _cast_type on <self:AIsaExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method typing$AIsaExpr$cast_type= for (self: AIsaExpr, nullable MType) */
+void nitc__typing___AIsaExpr___cast_type_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val = p0; /* _cast_type on <self:AIsaExpr> */
+RET_LABEL:;
 }
-var61 = var63;
-goto RET_LABEL62;
-RET_LABEL62:(void)0;
+/* method typing$AIsaExpr$accept_typing for (self: AIsaExpr, TypeVisitor) */
+void nitc__typing___AIsaExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AType */;
+val* var6 /* : AType */;
+val* var7 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
+val* var9 /* : AExpr */;
+val* var11 /* : AExpr */;
+val* var12 /* : nullable Variable */;
+val* var_variable /* var variable: nullable Variable */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var16 /* : Bool */;
+short int var17 /* : Bool */;
+val* var18 /* : AExpr */;
+val* var20 /* : AExpr */;
+val* var21 /* : nullable MType */;
+val* var_orig /* var orig: nullable MType */;
+short int var22 /* : Bool */;
+short int var23 /* : Bool */;
+short int var24 /* : Bool */;
+short int var25 /* : Bool */;
+val* var_other27 /* var other: nullable Object */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var31 /* : Bool */;
+short int var32 /* : Bool */;
+short int var34 /* : Bool */;
+short int var36 /* : Bool */;
+short int var_37 /* var : Bool */;
+short int var38 /* : Bool */;
+short int var39 /* : Bool */;
+val* var40 /* : nullable FlowContext */;
+val* var42 /* : nullable FlowContext */;
+val* var43 /* : FlowContext */;
+val* var45 /* : FlowContext */;
+val* var46 /* : nullable MType */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$AIsaExpr$n_expr (self) on <self:AIsaExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2234);
+fatal_exit(1);
 }
-var60 = var61;
+var = var2;
+RET_LABEL1:(void)0;
 }
-if (var60){
-goto RET_LABEL;
-} else {
 }
 {
-{ /* Inline typing#ASendReassignFormExpr#write_callsite= (self,var_wcallsite) on <self:ASendReassignFormExpr> */
-self->attrs[COLOR_nitc__typing__ASendReassignFormExpr___write_callsite].val = var_wcallsite; /* _write_callsite on <self:ASendReassignFormExpr> */
-RET_LABEL66:(void)0;
-}
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
 }
 {
-{ /* Inline typing#CallSite#msignature (var_wcallsite) on <var_wcallsite:nullable CallSite(CallSite)> */
-var69 = var_wcallsite->attrs[COLOR_nitc__typing__CallSite___msignature].val; /* _msignature on <var_wcallsite:nullable CallSite(CallSite)> */
-if (unlikely(var69 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _msignature");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 660);
+{ /* Inline parser_nodes$AIsaExpr$n_type (self) on <self:AIsaExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2240);
 fatal_exit(1);
 }
-var67 = var69;
-RET_LABEL68:(void)0;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline model#MSignature#mparameters (var67) on <var67:MSignature> */
-var72 = var67->attrs[COLOR_nitc__model__MSignature___mparameters].val; /* _mparameters on <var67:MSignature> */
-if (unlikely(var72 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mparameters");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1783);
-fatal_exit(1);
+var7 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var4);
 }
-var70 = var72;
-RET_LABEL71:(void)0;
+var_mtype = var7;
+{
+{ /* Inline typing$AIsaExpr$cast_type= (self,var_mtype) on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__typing__AIsaExpr___cast_type].val = var_mtype; /* _cast_type on <self:AIsaExpr> */
+RET_LABEL8:(void)0;
 }
 }
 {
-var73 = core___core__SequenceRead___last(var70);
+{ /* Inline parser_nodes$AIsaExpr$n_expr (self) on <self:AIsaExpr> */
+var11 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+if (unlikely(var11 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline model#MParameter#mtype (var73) on <var73:nullable Object(MParameter)> */
-var76 = var73->attrs[COLOR_nitc__model__MParameter___mtype].val; /* _mtype on <var73:nullable Object(MParameter)> */
-if (unlikely(var76 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mtype");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 1900);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2234);
 fatal_exit(1);
 }
-var74 = var76;
-RET_LABEL75:(void)0;
+var9 = var11;
+RET_LABEL10:(void)0;
 }
 }
 {
-var77 = nitc__typing___AReassignFormExpr___resolve_reassignment(self, var_v, var_readtype, var74);
+var12 = ((val*(*)(val* self))(var9->class->vft[COLOR_nitc__typing__AExpr__its_variable]))(var9); /* its_variable on <var9:AExpr>*/
 }
-var_wtype = var77;
-if (var_wtype == NULL) {
-var78 = 1; /* is null */
+var_variable = var12;
+if (var_variable == NULL) {
+var13 = 0; /* is null */
 } else {
-var78 = 0; /* arg is null but recv is not */
+var13 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_wtype,((val*)NULL)) on <var_wtype:nullable MType> */
+{ /* Inline kernel$Object$!= (var_variable,((val*)NULL)) on <var_variable:nullable Variable> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_wtype,var_other) on <var_wtype:nullable MType(MType)> */
-var83 = var_wtype == var_other;
-var81 = var83;
-goto RET_LABEL82;
-RET_LABEL82:(void)0;
-}
-}
-var79 = var81;
-goto RET_LABEL80;
-RET_LABEL80:(void)0;
+var16 = ((short int(*)(val* self, val* p0))(var_variable->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_variable, var_other); /* == on <var_variable:nullable Variable(Variable)>*/
 }
-var78 = var79;
+var17 = !var16;
+var14 = var17;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
-if (var78){
-goto RET_LABEL;
-} else {
+var13 = var14;
 }
+if (var13){
 {
-var84 = core__array___Collection___to_a(var_args);
+{ /* Inline parser_nodes$AIsaExpr$n_expr (self) on <self:AIsaExpr> */
+var20 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+if (unlikely(var20 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_args = var84;
-{
-{ /* Inline parser_nodes#AReassignFormExpr#n_value (self) on <self:ASendReassignFormExpr> */
-var87 = self->attrs[COLOR_nitc__parser_nodes__AReassignFormExpr___n_value].val; /* _n_value on <self:ASendReassignFormExpr> */
-if (unlikely(var87 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_value");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2003);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2234);
 fatal_exit(1);
 }
-var85 = var87;
-RET_LABEL86:(void)0;
+var18 = var20;
+RET_LABEL19:(void)0;
 }
 }
 {
-core___core__Array___core__abstract_collection__SimpleCollection__add(var_args, var85); /* Direct call array#Array#add on <var_args:Array[AExpr]>*/
+var21 = ((val*(*)(val* self))(var18->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var18); /* mtype on <var18:AExpr>*/
 }
-{
-var88 = nitc___nitc__CallSite___check_signature(var_wcallsite, var_v, var_node, var_args);
+var_orig = var21;
+if (var_mtype == NULL) {
+var24 = 1; /* is null */
+} else {
+var24 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other27 = ((val*)NULL);
 {
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ASendReassignFormExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ASendReassignFormExpr> */
-RET_LABEL89:(void)0;
-}
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other27) on <var_mtype:nullable MType(MType)> */
+var30 = var_mtype == var_other27;
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
-RET_LABEL:;
 }
-/* method typing#ACallReassignExpr#property_name for (self: ACallReassignExpr): String */
-val* nitc__typing___ACallReassignExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
-val* var4 /* : TId */;
-val* var6 /* : TId */;
-val* var7 /* : String */;
-{
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallReassignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallReassignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
+var25 = var28;
+goto RET_LABEL26;
+RET_LABEL26:(void)0;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var24 = var25;
 }
+var_ = var24;
+if (var24){
+var23 = var_;
+} else {
+if (var_orig == NULL) {
+var31 = 1; /* is null */
+} else {
+var31 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_orig,((val*)NULL)) on <var_orig:nullable MType> */
+var_other27 = ((val*)NULL);
 {
-{ /* Inline parser_nodes#AQid#n_id (var1) on <var1:AQid> */
-var6 = var1->attrs[COLOR_nitc__parser_nodes__AQid___n_id].val; /* _n_id on <var1:AQid> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_id");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1658);
-fatal_exit(1);
+{ /* Inline kernel$Object$is_same_instance (var_orig,var_other27) on <var_orig:nullable MType(MType)> */
+var36 = var_orig == var_other27;
+var34 = var36;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
-var4 = var6;
-RET_LABEL5:(void)0;
 }
+var32 = var34;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
+}
+var31 = var32;
+}
+var23 = var31;
 }
+var_37 = var23;
+if (var23){
+var22 = var_37;
+} else {
 {
-var7 = nitc__lexer_work___Token___text(var4);
+var38 = nitc__typing___nitc__typing__TypeVisitor___is_subtype(var_v, var_orig, var_mtype);
 }
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var39 = !var38;
+var22 = var39;
 }
-/* method typing#ACallReassignExpr#property_node for (self: ACallReassignExpr): ANode */
-val* nitc__typing___ACallReassignExpr___ASendExpr__property_node(val* self) {
-val* var /* : ANode */;
-val* var1 /* : AQid */;
-val* var3 /* : AQid */;
-val* var4 /* : TId */;
-val* var6 /* : TId */;
+if (var22){
 {
-{ /* Inline parser_nodes#ACallFormExpr#n_qid (self) on <self:ACallReassignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_qid].val; /* _n_qid on <self:ACallReassignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_qid");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2296);
-fatal_exit(1);
+{ /* Inline flow$AExpr$after_flow_context (self) on <self:AIsaExpr> */
+var42 = self->attrs[COLOR_nitc__flow__AExpr___after_flow_context].val; /* _after_flow_context on <self:AIsaExpr> */
+var40 = var42;
+RET_LABEL41:(void)0;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
 }
+if (var40 == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline parser_nodes#AQid#n_id (var1) on <var1:AQid> */
-var6 = var1->attrs[COLOR_nitc__parser_nodes__AQid___n_id].val; /* _n_id on <var1:AQid> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_id");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1658);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1694);
 fatal_exit(1);
+} else {
+{ /* Inline flow$FlowContext$when_true (var40) on <var40:nullable FlowContext> */
+if (unlikely(var40 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var4 = var6;
-RET_LABEL5:(void)0;
-}
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__flow, 225);
+fatal_exit(1);
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var45 = var40->attrs[COLOR_nitc__flow__FlowContext___when_true].val; /* _when_true on <var40:nullable FlowContext> */
+if (unlikely(var45 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method typing#ACallReassignExpr#compute_raw_arguments for (self: ACallReassignExpr): Array[AExpr] */
-val* nitc__typing___ACallReassignExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
-{
-{ /* Inline parser_nodes#ACallFormExpr#n_args (self) on <self:ACallReassignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ACallFormExpr___n_args].val; /* _n_args on <self:ACallReassignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2299);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _when_true");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__flow, 225);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var43 = var45;
+RET_LABEL44:(void)0;
 }
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+nitc__typing___FlowContext___set_var(var43, var_v, var_variable, var_mtype); /* Direct call typing$FlowContext$set_var on <var43:FlowContext>*/
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+} else {
 }
-/* method typing#ABraReassignExpr#property_name for (self: ABraReassignExpr): String */
-val* nitc__typing___ABraReassignExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-val* var3 /* : String */;
-if (likely(varonce!=NULL)) {
-var1 = varonce;
 } else {
-var2 = "[]";
-var3 = core__flat___NativeString___to_s_full(var2, 2l, 2l);
-var1 = var3;
-varonce = var1;
 }
-var = var1;
-goto RET_LABEL;
+{
+var46 = nitc__typing___nitc__typing__TypeVisitor___type_bool(var_v, self);
+}
+{
+{ /* Inline typing$AExpr$mtype= (self,var46) on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var46; /* _mtype on <self:AIsaExpr> */
+RET_LABEL47:(void)0;
+}
+}
 RET_LABEL:;
-return var;
 }
-/* method typing#ABraReassignExpr#compute_raw_arguments for (self: ABraReassignExpr): Array[AExpr] */
-val* nitc__typing___ABraReassignExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
+/* method typing$AIsaExpr$accept_post_typing for (self: AIsaExpr, TypeVisitor) */
+void nitc__typing___AIsaExpr___ANode__accept_post_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : AType */;
+val* var5 /* : AType */;
+val* var6 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#ABraFormExpr#n_args (self) on <self:ABraReassignExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__ABraFormExpr___n_args].val; /* _n_args on <self:ABraReassignExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2368);
+{ /* Inline parser_nodes$AIsaExpr$n_expr (self) on <self:AIsaExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2234);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+{ /* Inline parser_nodes$AIsaExpr$n_type (self) on <self:AIsaExpr> */
+var5 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
+if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2240);
+fatal_exit(1);
 }
-/* method typing#AInitExpr#property_name for (self: AInitExpr): String */
-val* nitc__typing___AInitExpr___ASendExpr__property_name(val* self) {
-val* var /* : String */;
-static val* varonce;
-val* var1 /* : String */;
-char* var2 /* : NativeString */;
-val* var3 /* : String */;
-if (likely(varonce!=NULL)) {
-var1 = varonce;
-} else {
-var2 = "init";
-var3 = core__flat___NativeString___to_s_full(var2, 4l, 4l);
-var1 = var3;
-varonce = var1;
+var3 = var5;
+RET_LABEL4:(void)0;
+}
+}
+{
+var6 = nitc__typing___nitc__typing__TypeVisitor___check_expr_cast(var_v, self, var, var3);
 }
-var = var1;
-goto RET_LABEL;
 RET_LABEL:;
-return var;
 }
-/* method typing#AInitExpr#property_node for (self: AInitExpr): ANode */
-val* nitc__typing___AInitExpr___ASendExpr__property_node(val* self) {
-val* var /* : ANode */;
-val* var1 /* : TKwinit */;
-val* var3 /* : TKwinit */;
+/* method typing$AAsCastExpr$accept_typing for (self: AAsCastExpr, TypeVisitor) */
+void nitc__typing___AAsCastExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var4 /* : AType */;
+val* var6 /* : AType */;
+val* var7 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#AInitExpr#n_kwinit (self) on <self:AInitExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AInitExpr___n_kwinit].val; /* _n_kwinit on <self:AInitExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwinit");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2357);
+{ /* Inline parser_nodes$AAsCastForm$n_expr (self) on <self:AAsCastExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsCastExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2667);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
 }
-/* method typing#AInitExpr#compute_raw_arguments for (self: AInitExpr): Array[AExpr] */
-val* nitc__typing___AInitExpr___ASendExpr__compute_raw_arguments(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : AExprs */;
-val* var3 /* : AExprs */;
-val* var4 /* : Array[AExpr] */;
 {
-{ /* Inline parser_nodes#AInitExpr#n_args (self) on <self:AInitExpr> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AInitExpr___n_args].val; /* _n_args on <self:AInitExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2360);
+{ /* Inline parser_nodes$AAsCastExpr$n_type (self) on <self:AAsCastExpr> */
+var6 = self->attrs[COLOR_nitc__parser_nodes__AAsCastExpr___n_type].val; /* _n_type on <self:AAsCastExpr> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2684);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
 {
-var4 = nitc__typing___AExprs___to_a(var1);
+var7 = nitc__typing___nitc__typing__TypeVisitor___resolve_mtype(var_v, var4);
+}
+{
+{ /* Inline typing$AExpr$mtype= (self,var7) on <self:AAsCastExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var7; /* _mtype on <self:AAsCastExpr> */
+RET_LABEL8:(void)0;
+}
 }
-var = var4;
-goto RET_LABEL;
 RET_LABEL:;
-return var;
 }
-/* method typing#AExprs#to_a for (self: AExprs): Array[AExpr] */
-val* nitc__typing___AExprs___to_a(val* self) {
-val* var /* : Array[AExpr] */;
-val* var1 /* : ANodes[AExpr] */;
-val* var3 /* : ANodes[AExpr] */;
-val* var4 /* : Array[nullable Object] */;
+/* method typing$AAsCastExpr$accept_post_typing for (self: AAsCastExpr, TypeVisitor) */
+void nitc__typing___AAsCastExpr___ANode__accept_post_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : AType */;
+val* var5 /* : AType */;
+val* var6 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline parser_nodes#AExprs#n_exprs (self) on <self:AExprs> */
-var3 = self->attrs[COLOR_nitc__parser_nodes__AExprs___n_exprs].val; /* _n_exprs on <self:AExprs> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_exprs");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2709);
+{ /* Inline parser_nodes$AAsCastForm$n_expr (self) on <self:AAsCastExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsCastExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2667);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
 {
-var4 = core__array___Collection___to_a(var1);
+{ /* Inline parser_nodes$AAsCastExpr$n_type (self) on <self:AAsCastExpr> */
+var5 = self->attrs[COLOR_nitc__parser_nodes__AAsCastExpr___n_type].val; /* _n_type on <self:AAsCastExpr> */
+if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2684);
+fatal_exit(1);
 }
-/* method typing#ASuperExpr#callsite for (self: ASuperExpr): nullable CallSite */
-val* nitc__typing___ASuperExpr___callsite(val* self) {
-val* var /* : nullable CallSite */;
-val* var1 /* : nullable CallSite */;
-var1 = self->attrs[COLOR_nitc__typing__ASuperExpr___callsite].val; /* _callsite on <self:ASuperExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+var3 = var5;
+RET_LABEL4:(void)0;
 }
-/* method typing#ASuperExpr#callsite= for (self: ASuperExpr, nullable CallSite) */
-void nitc__typing___ASuperExpr___callsite_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASuperExpr___callsite].val = p0; /* _callsite on <self:ASuperExpr> */
-RET_LABEL:;
 }
-/* method typing#ASuperExpr#mpropdef for (self: ASuperExpr): nullable MMethodDef */
-val* nitc__typing___ASuperExpr___mpropdef(val* self) {
-val* var /* : nullable MMethodDef */;
-val* var1 /* : nullable MMethodDef */;
-var1 = self->attrs[COLOR_nitc__typing__ASuperExpr___mpropdef].val; /* _mpropdef on <self:ASuperExpr> */
-var = var1;
-RET_LABEL:;
-return var;
+{
+var6 = nitc__typing___nitc__typing__TypeVisitor___check_expr_cast(var_v, self, var, var3);
 }
-/* method typing#ASuperExpr#mpropdef= for (self: ASuperExpr, nullable MMethodDef) */
-void nitc__typing___ASuperExpr___mpropdef_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASuperExpr___mpropdef].val = p0; /* _mpropdef on <self:ASuperExpr> */
 RET_LABEL:;
 }
-/* method typing#ASuperExpr#accept_typing for (self: ASuperExpr, TypeVisitor) */
-void nitc__typing___ASuperExpr___AExpr__accept_typing(val* self, val* p0) {
+/* method typing$AAsNotnullExpr$accept_typing for (self: AAsNotnullExpr, TypeVisitor) */
+void nitc__typing___AAsNotnullExpr___AExpr__accept_typing(val* self, val* p0) {
 val* var_v /* var v: TypeVisitor */;
-val* var /* : nullable MClassType */;
-val* var2 /* : nullable MClassType */;
-val* var_anchor /* var anchor: nullable MClassType */;
-short int var3 /* : Bool */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
 short int var4 /* : Bool */;
+short int var5 /* : Bool */;
 val* var_other /* var other: nullable Object */;
-short int var6 /* : Bool */;
 short int var7 /* : Bool */;
-val* var8 /* : Variable */;
-val* var10 /* : Variable */;
-val* var11 /* : nullable MType */;
-val* var_recvtype /* var recvtype: nullable MType */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-val* var17 /* : nullable MPropDef */;
-val* var19 /* : nullable MPropDef */;
-val* var20 /* : MProperty */;
-val* var22 /* : MProperty */;
-val* var_mproperty /* var mproperty: MProperty */;
-short int var23 /* : Bool */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
 int cltype;
 int idtype;
-short int var24 /* : Bool */;
 static val* varonce;
-val* var25 /* : String */;
-char* var26 /* : NativeString */;
-val* var27 /* : String */;
-val* var28 /* : MModule */;
-val* var30 /* : MModule */;
-val* var31 /* : Array[MPropDef] */;
-val* var_superprops /* var superprops: Array[MMethodDef] */;
-long var32 /* : Int */;
-long var34 /* : Int */;
-short int var35 /* : Bool */;
-short int var37 /* : Bool */;
-short int var38 /* : Bool */;
-short int var39 /* : Bool */;
-short int var41 /* : Bool */;
-short int var_ /* var : Bool */;
-val* var42 /* : nullable MPropDef */;
-val* var44 /* : nullable MPropDef */;
-short int var45 /* : Bool */;
-val* var47 /* : NativeArray[String] */;
-static val* varonce46;
-static val* varonce48;
-val* var49 /* : String */;
-char* var50 /* : NativeString */;
-val* var51 /* : String */;
-static val* varonce52;
-val* var53 /* : String */;
-char* var54 /* : NativeString */;
-val* var55 /* : String */;
-val* var56 /* : String */;
-val* var57 /* : String */;
-val* var58 /* : nullable Object */;
-val* var_superprop /* var superprop: MMethodDef */;
-val* var59 /* : nullable MSignature */;
-val* var61 /* : nullable MSignature */;
-val* var_msignature /* var msignature: MSignature */;
-val* var62 /* : MType */;
-short int var63 /* : Bool */;
-int cltype64;
-int idtype65;
-const char* var_class_name;
-val* var66 /* : AExprs */;
-val* var68 /* : AExprs */;
-val* var69 /* : Array[AExpr] */;
-val* var_args /* var args: Array[AExpr] */;
-long var70 /* : Int */;
-long var72 /* : Int */;
-short int var73 /* : Bool */;
-short int var75 /* : Bool */;
-int cltype76;
-int idtype77;
-const char* var_class_name78;
-short int var79 /* : Bool */;
-val* var80 /* : nullable SignatureMap */;
-val* var82 /* : nullable MType */;
-val* var84 /* : nullable MType */;
-val* var87 /* : nullable MPropDef */;
-val* var89 /* : nullable MPropDef */;
-val* var91 /* : nullable MPropDef */;
-val* var93 /* : nullable MPropDef */;
-short int var94 /* : Bool */;
-int cltype95;
-int idtype96;
-const char* var_class_name97;
+val* var11 /* : String */;
+char* var12 /* : CString */;
+val* var13 /* : String */;
+val* var14 /* : nullable Int */;
+val* var15 /* : nullable Int */;
+val* var16 /* : nullable Bool */;
+val* var17 /* : nullable Bool */;
+short int var18 /* : Bool */;
+val* var19 /* : MType */;
 var_v = p0;
 {
-{ /* Inline typing#TypeVisitor#anchor (var_v) on <var_v:TypeVisitor> */
-var2 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___anchor].val; /* _anchor on <var_v:TypeVisitor> */
+{ /* Inline parser_nodes$AAsCastForm$n_expr (self) on <self:AAsNotnullExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2667);
+fatal_exit(1);
+}
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_anchor = var;
-if (var_anchor == NULL) {
-var3 = 0; /* is null */
+{
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
+}
+var_mtype = var3;
+if (var_mtype == NULL) {
+var4 = 1; /* is null */
 } else {
-var3 = 1; /* arg is null and recv is not */
+var4 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_anchor,((val*)NULL)) on <var_anchor:nullable MClassType> */
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
 var_other = ((val*)NULL);
 {
-var6 = ((short int(*)(val* self, val* p0))(var_anchor->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_anchor, var_other); /* == on <var_anchor:nullable MClassType(MClassType)>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var9 = var_mtype == var_other;
+var7 = var9;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
-var7 = !var6;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
 }
-var3 = var4;
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-if (unlikely(!var3)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1930);
-fatal_exit(1);
+var4 = var5;
 }
-{
-{ /* Inline typing#TypeVisitor#selfvariable (var_v) on <var_v:TypeVisitor> */
-var10 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___selfvariable].val; /* _selfvariable on <var_v:TypeVisitor> */
-if (unlikely(var10 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _selfvariable");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 51);
-fatal_exit(1);
+if (var4){
+goto RET_LABEL;
+} else {
 }
-var8 = var10;
-RET_LABEL9:(void)0;
+/* <var_mtype:nullable MType(MType)> isa MNullType */
+cltype = type_nitc__MNullType.color;
+idtype = type_nitc__MNullType.id;
+if(cltype >= var_mtype->type->table_size) {
+var10 = 0;
+} else {
+var10 = var_mtype->type->type_table[cltype] == idtype;
 }
+if (var10){
+if (likely(varonce!=NULL)) {
+var11 = varonce;
+} else {
+var12 = "Type Error: `as(not null)` on `null`.";
+var14 = (val*)(37l<<2|1);
+var15 = (val*)(37l<<2|1);
+var16 = (val*)((long)(0)<<2|3);
+var17 = (val*)((long)(0)<<2|3);
+var13 = core__flat___CString___to_s_unsafe(var12, var14, var15, var16, var17);
+var11 = var13;
+varonce = var11;
 }
 {
-var11 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var8);
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var11); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-var_recvtype = var11;
-if (var_recvtype == NULL) {
-var12 = 0; /* is null */
+goto RET_LABEL;
 } else {
-var12 = 1; /* arg is null and recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_recvtype,((val*)NULL)) on <var_recvtype:nullable MType> */
-var_other = ((val*)NULL);
 {
-var15 = ((short int(*)(val* self, val* p0))(var_recvtype->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_recvtype, var_other); /* == on <var_recvtype:nullable MType(MType)>*/
-}
-var16 = !var15;
-var13 = var16;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+var18 = nitc__typing___nitc__typing__TypeVisitor___can_be_null(var_v, var_mtype);
 }
-var12 = var13;
+if (var18){
+{
+var19 = ((val*(*)(val* self))(var_mtype->class->vft[COLOR_nitc__model__MType__as_notnull]))(var_mtype); /* as_notnull on <var_mtype:nullable MType(MType)>*/
 }
-if (unlikely(!var12)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1932);
-fatal_exit(1);
+var_mtype = var19;
+} else {
 }
 {
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var19 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var17 = var19;
-RET_LABEL18:(void)0;
+{ /* Inline typing$AExpr$mtype= (self,var_mtype) on <self:AAsNotnullExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var_mtype; /* _mtype on <self:AAsNotnullExpr> */
+RET_LABEL20:(void)0;
 }
 }
-if (var17 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1933);
-fatal_exit(1);
-} else {
-{ /* Inline model#MPropDef#mproperty (var17) on <var17:nullable MPropDef> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 2230);
-fatal_exit(1);
+RET_LABEL:;
 }
-var22 = var17->attrs[COLOR_nitc__model__MPropDef___mproperty].val; /* _mproperty on <var17:nullable MPropDef> */
-if (unlikely(var22 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mproperty");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__model, 2230);
+/* method typing$AAsNotnullExpr$accept_post_typing for (self: AAsNotnullExpr, TypeVisitor) */
+void nitc__typing___AAsNotnullExpr___ANode__accept_post_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+val* var_mtype /* var mtype: nullable MType */;
+short int var4 /* : Bool */;
+short int var5 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var7 /* : Bool */;
+short int var9 /* : Bool */;
+val* var10 /* : AExpr */;
+val* var12 /* : AExpr */;
+short int var13 /* : Bool */;
+var_v = p0;
+{
+{ /* Inline parser_nodes$AAsCastForm$n_expr (self) on <self:AAsNotnullExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2667);
 fatal_exit(1);
 }
-var20 = var22;
-RET_LABEL21:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-var_mproperty = var20;
-/* <var_mproperty:MProperty> isa MMethod */
-cltype = type_nitc__MMethod.color;
-idtype = type_nitc__MMethod.id;
-if(cltype >= var_mproperty->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_mproperty->type->type_table[cltype] == idtype;
+{
+var3 = ((val*(*)(val* self))(var->class->vft[COLOR_nitc__typing__AExpr__mtype]))(var); /* mtype on <var:AExpr>*/
 }
-var24 = !var23;
-if (var24){
-if (likely(varonce!=NULL)) {
-var25 = varonce;
+var_mtype = var3;
+if (var_mtype == NULL) {
+var4 = 1; /* is null */
 } else {
-var26 = "Error: `super` only usable in a `method`.";
-var27 = core__flat___NativeString___to_s_full(var26, 41l, 41l);
-var25 = var27;
-varonce = var25;
+var4 = 0; /* arg is null but recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$== (var_mtype,((val*)NULL)) on <var_mtype:nullable MType> */
+var_other = ((val*)NULL);
 {
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var25); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
+{ /* Inline kernel$Object$is_same_instance (var_mtype,var_other) on <var_mtype:nullable MType(MType)> */
+var9 = var_mtype == var_other;
+var7 = var9;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
+}
+}
+var5 = var7;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+var4 = var5;
 }
+if (var4){
 goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline typing#TypeVisitor#mmodule (var_v) on <var_v:TypeVisitor> */
-var30 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mmodule].val; /* _mmodule on <var_v:TypeVisitor> */
-if (unlikely(var30 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _mmodule");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 37);
-fatal_exit(1);
+{ /* Inline parser_nodes$AAsCastForm$n_expr (self) on <self:AAsNotnullExpr> */
+var12 = self->attrs[COLOR_nitc__parser_nodes__AAsCastForm___n_expr].val; /* _n_expr on <self:AAsNotnullExpr> */
+if (unlikely(var12 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var28 = var30;
-RET_LABEL29:(void)0;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2667);
+fatal_exit(1);
 }
+var10 = var12;
+RET_LABEL11:(void)0;
 }
-{
-var31 = nitc___nitc__MProperty___lookup_super_definitions(var_mproperty, var28, var_anchor);
 }
-var_superprops = var31;
 {
-{ /* Inline array#AbstractArrayRead#length (var_superprops) on <var_superprops:Array[MMethodDef]> */
-var34 = var_superprops->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_superprops:Array[MMethodDef]> */
-var32 = var34;
-RET_LABEL33:(void)0;
+var13 = nitc__typing___nitc__typing__TypeVisitor___check_can_be_null(var_v, var10, var_mtype);
 }
+RET_LABEL:;
 }
+/* method typing$AParExpr$accept_typing for (self: AParExpr, TypeVisitor) */
+void nitc__typing___AParExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+var_v = p0;
 {
-{ /* Inline kernel#Int#== (var32,0l) on <var32:Int> */
-var37 = var32 == 0l;
-var35 = var37;
-goto RET_LABEL36;
-RET_LABEL36:(void)0;
+{ /* Inline parser_nodes$AParExpr$n_expr (self) on <self:AParExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AParExpr___n_expr].val; /* _n_expr on <self:AParExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2656);
+fatal_exit(1);
 }
-if (var35){
-{
-{ /* Inline model#MMethod#is_init (var_mproperty) on <var_mproperty:MProperty(MMethod)> */
-var41 = var_mproperty->attrs[COLOR_nitc__model__MMethod___is_init].s; /* _is_init on <var_mproperty:MProperty(MMethod)> */
-var39 = var41;
-RET_LABEL40:(void)0;
+var = var2;
+RET_LABEL1:(void)0;
 }
 }
-var_ = var39;
-if (var39){
 {
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var44 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var42 = var44;
-RET_LABEL43:(void)0;
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
 }
+{
+{ /* Inline typing$AExpr$mtype= (self,var3) on <self:AParExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var3; /* _mtype on <self:AParExpr> */
+RET_LABEL4:(void)0;
 }
-if (var42 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1940);
-fatal_exit(1);
-} else {
-var45 = nitc___nitc__MPropDef___is_intro(var42);
 }
-var38 = var45;
-} else {
-var38 = var_;
+RET_LABEL:;
 }
-if (var38){
+/* method typing$AOnceExpr$accept_typing for (self: AOnceExpr, TypeVisitor) */
+void nitc__typing___AOnceExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+val* var /* : AExpr */;
+val* var2 /* : AExpr */;
+val* var3 /* : nullable MType */;
+var_v = p0;
 {
-nitc__typing___ASuperExpr___process_superinit(self, var_v); /* Direct call typing#ASuperExpr#process_superinit on <self:ASuperExpr>*/
-}
-goto RET_LABEL;
-} else {
+{ /* Inline parser_nodes$AOnceExpr$n_expr (self) on <self:AOnceExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(varonce46==NULL)) {
-var47 = NEW_core__NativeArray(3l, &type_core__NativeArray__core__String);
-if (likely(varonce48!=NULL)) {
-var49 = varonce48;
-} else {
-var50 = "Error: no super method to call for `";
-var51 = core__flat___NativeString___to_s_full(var50, 36l, 36l);
-var49 = var51;
-varonce48 = var49;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2095);
+fatal_exit(1);
 }
-((struct instance_core__NativeArray*)var47)->values[0]=var49;
-if (likely(varonce52!=NULL)) {
-var53 = varonce52;
-} else {
-var54 = "`.";
-var55 = core__flat___NativeString___to_s_full(var54, 2l, 2l);
-var53 = var55;
-varonce52 = var53;
+var = var2;
+RET_LABEL1:(void)0;
 }
-((struct instance_core__NativeArray*)var47)->values[2]=var53;
-} else {
-var47 = varonce46;
-varonce46 = NULL;
 }
 {
-var56 = ((val*(*)(val* self))(var_mproperty->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_mproperty); /* to_s on <var_mproperty:MProperty(MMethod)>*/
+var3 = nitc__typing___nitc__typing__TypeVisitor___visit_expr(var_v, var);
 }
-((struct instance_core__NativeArray*)var47)->values[1]=var56;
 {
-var57 = ((val*(*)(val* self))(var47->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var47); /* native_to_s on <var47:NativeArray[String]>*/
+{ /* Inline typing$AExpr$mtype= (self,var3) on <self:AOnceExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var3; /* _mtype on <self:AOnceExpr> */
+RET_LABEL4:(void)0;
 }
-varonce46 = var47;
-{
-nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var57); /* Direct call typing#TypeVisitor#error on <var_v:TypeVisitor>*/
 }
-goto RET_LABEL;
-} else {
+RET_LABEL:;
 }
-{
-var58 = core___core__SequenceRead___Collection__first(var_superprops);
+/* method typing$ASelfExpr$its_variable for (self: ASelfExpr): nullable Variable */
+val* nitc__typing___ASelfExpr___AExpr__its_variable(val* self) {
+val* var /* : nullable Variable */;
+val* var1 /* : nullable Variable */;
+var1 = self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val; /* _its_variable on <self:ASelfExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-var_superprop = var58;
-{
-{ /* Inline model#MMethodDef#msignature (var_superprop) on <var_superprop:MMethodDef> */
-var61 = var_superprop->attrs[COLOR_nitc__model__MMethodDef___msignature].val; /* _msignature on <var_superprop:MMethodDef> */
-var59 = var61;
-RET_LABEL60:(void)0;
+/* method typing$ASelfExpr$its_variable= for (self: ASelfExpr, nullable Variable) */
+void nitc__typing___ASelfExpr___its_variable_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val = p0; /* _its_variable on <self:ASelfExpr> */
+RET_LABEL:;
 }
+/* method typing$ASelfExpr$accept_typing for (self: ASelfExpr, TypeVisitor) */
+void nitc__typing___ASelfExpr___AExpr__accept_typing(val* self, val* p0) {
+val* var_v /* var v: TypeVisitor */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+short int var3 /* : Bool */;
+short int var_ /* var : Bool */;
+short int var4 /* : Bool */;
+int cltype;
+int idtype;
+short int var5 /* : Bool */;
+static val* varonce;
+val* var6 /* : String */;
+char* var7 /* : CString */;
+val* var8 /* : String */;
+val* var9 /* : nullable Int */;
+val* var10 /* : nullable Int */;
+val* var11 /* : nullable Bool */;
+val* var12 /* : nullable Bool */;
+val* var13 /* : Variable */;
+val* var15 /* : Variable */;
+val* var_variable /* var variable: Variable */;
+val* var17 /* : nullable MType */;
+var_v = p0;
+{
+{ /* Inline typing$TypeVisitor$is_toplevel_context (var_v) on <var_v:TypeVisitor> */
+var3 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___is_toplevel_context].s; /* _is_toplevel_context on <var_v:TypeVisitor> */
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-if (unlikely(var59 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1950);
-fatal_exit(1);
 }
-var_msignature = var59;
-{
-var62 = nitc__typing___nitc__typing__TypeVisitor___resolve_for(var_v, var_msignature, var_recvtype, 1);
+var_ = var1;
+if (var1){
+/* <self:ASelfExpr> isa AImplicitSelfExpr */
+cltype = type_nitc__AImplicitSelfExpr.color;
+idtype = type_nitc__AImplicitSelfExpr.id;
+if(cltype >= self->type->table_size) {
+var4 = 0;
+} else {
+var4 = self->type->type_table[cltype] == idtype;
 }
-/* <var62:MType> isa MSignature */
-cltype64 = type_nitc__MSignature.color;
-idtype65 = type_nitc__MSignature.id;
-if(cltype64 >= var62->type->table_size) {
-var63 = 0;
+var5 = !var4;
+var = var5;
 } else {
-var63 = var62->type->type_table[cltype64] == idtype65;
+var = var_;
 }
-if (unlikely(!var63)) {
-var_class_name = var62 == NULL ? "null" : var62->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "MSignature", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1951);
-fatal_exit(1);
+if (var){
+if (likely(varonce!=NULL)) {
+var6 = varonce;
+} else {
+var7 = "Error: `self` cannot be used in top-level method.";
+var9 = (val*)(49l<<2|1);
+var10 = (val*)(49l<<2|1);
+var11 = (val*)((long)(0)<<2|3);
+var12 = (val*)((long)(0)<<2|3);
+var8 = core__flat___CString___to_s_unsafe(var7, var9, var10, var11, var12);
+var6 = var8;
+varonce = var6;
 }
-var_msignature = var62;
 {
-{ /* Inline parser_nodes#ASuperExpr#n_args (self) on <self:ASuperExpr> */
-var68 = self->attrs[COLOR_nitc__parser_nodes__ASuperExpr___n_args].val; /* _n_args on <self:ASuperExpr> */
-if (unlikely(var68 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_args");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2348);
-fatal_exit(1);
-}
-var66 = var68;
-RET_LABEL67:(void)0;
-}
+nitc__typing___nitc__typing__TypeVisitor___error(var_v, self, var6); /* Direct call typing$TypeVisitor$error on <var_v:TypeVisitor>*/
 }
-{
-var69 = nitc__typing___AExprs___to_a(var66);
+} else {
 }
-var_args = var69;
 {
-{ /* Inline array#AbstractArrayRead#length (var_args) on <var_args:Array[AExpr]> */
-var72 = var_args->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_args:Array[AExpr]> */
-var70 = var72;
-RET_LABEL71:(void)0;
-}
+{ /* Inline typing$TypeVisitor$selfvariable (var_v) on <var_v:TypeVisitor> */
+var15 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___selfvariable].val; /* _selfvariable on <var_v:TypeVisitor> */
+if (unlikely(var15 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline kernel#Int#> (var70,0l) on <var70:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var75 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var75)) {
-var_class_name78 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name78);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _selfvariable");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 51);
 fatal_exit(1);
 }
-var79 = var70 > 0l;
-var73 = var79;
-goto RET_LABEL74;
-RET_LABEL74:(void)0;
-}
+var13 = var15;
+RET_LABEL14:(void)0;
 }
-if (var73){
-{
-var80 = nitc__typing___nitc__typing__TypeVisitor___check_signature(var_v, self, var_args, var_mproperty, var_msignature);
 }
+var_variable = var13;
 {
-{ /* Inline typing#ASuperExpr#signaturemap= (self,var80) on <self:ASuperExpr> */
-self->attrs[COLOR_nitc__typing__ASuperExpr___signaturemap].val = var80; /* _signaturemap on <self:ASuperExpr> */
-RET_LABEL81:(void)0;
+{ /* Inline typing$ASelfExpr$its_variable= (self,var_variable) on <self:ASelfExpr> */
+self->attrs[COLOR_nitc__typing__ASelfExpr___its_variable].val = var_variable; /* _its_variable on <self:ASelfExpr> */
+RET_LABEL16:(void)0;
 }
 }
-} else {
+{
+var17 = nitc__typing___nitc__typing__TypeVisitor___get_variable(var_v, self, var_variable);
 }
 {
-{ /* Inline model#MSignature#return_mtype (var_msignature) on <var_msignature:MSignature> */
-var84 = var_msignature->attrs[COLOR_nitc__model__MSignature___return_mtype].val; /* _return_mtype on <var_msignature:MSignature> */
-var82 = var84;
-RET_LABEL83:(void)0;
+{ /* Inline typing$AExpr$mtype= (self,var17) on <self:ASelfExpr> */
+self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var17; /* _mtype on <self:ASelfExpr> */
+RET_LABEL18:(void)0;
 }
 }
-{
-{ /* Inline typing#AExpr#mtype= (self,var82) on <self:ASuperExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___mtype].val = var82; /* _mtype on <self:ASuperExpr> */
-RET_LABEL85:(void)0;
+RET_LABEL:;
 }
+/* method typing$AImplicitSelfExpr$is_sys for (self: AImplicitSelfExpr): Bool */
+short int nitc__typing___AImplicitSelfExpr___is_sys(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_nitc__typing__AImplicitSelfExpr___is_sys].s; /* _is_sys on <self:AImplicitSelfExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-{ /* Inline typing#AExpr#is_typed= (self,1) on <self:ASuperExpr> */
-self->attrs[COLOR_nitc__typing__AExpr___is_typed].s = 1; /* _is_typed on <self:ASuperExpr> */
-RET_LABEL86:(void)0;
+/* method typing$AImplicitSelfExpr$is_sys= for (self: AImplicitSelfExpr, Bool) */
+void nitc__typing___AImplicitSelfExpr___is_sys_61d(val* self, short int p0) {
+self->attrs[COLOR_nitc__typing__AImplicitSelfExpr___is_sys].s = p0; /* _is_sys on <self:AImplicitSelfExpr> */
+RET_LABEL:;
 }
+/* method typing$ASendExpr$callsite for (self: ASendExpr): nullable CallSite */
+val* nitc__typing___ASendExpr___callsite(val* self) {
+val* var /* : nullable CallSite */;
+val* var1 /* : nullable CallSite */;
+var1 = self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val; /* _callsite on <self:ASendExpr> */
+var = var1;
+RET_LABEL:;
+return var;
 }
-{
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var89 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var87 = var89;
-RET_LABEL88:(void)0;
+/* method typing$ASendExpr$callsite= for (self: ASendExpr, nullable CallSite) */
+void nitc__typing___ASendExpr___callsite_61d(val* self, val* p0) {
+self->attrs[COLOR_nitc__typing__ASendExpr___callsite].val = p0; /* _callsite on <self:ASendExpr> */
+RET_LABEL:;
 }
+/* method typing$ASendExpr$bad_expr_message for (self: ASendExpr, AExpr): nullable String */
+val* nitc__typing___ASendExpr___ANode__bad_expr_message(val* self, val* p0) {
+val* var /* : nullable String */;
+val* var_child /* var child: AExpr */;
+val* var1 /* : AExpr */;
+val* var3 /* : AExpr */;
+short int var4 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
+val* var9 /* : NativeArray[String] */;
+static val* varonce;
+static val* varonce10;
+val* var11 /* : String */;
+char* var12 /* : CString */;
+val* var13 /* : String */;
+val* var14 /* : nullable Int */;
+val* var15 /* : nullable Int */;
+val* var16 /* : nullable Bool */;
+val* var17 /* : nullable Bool */;
+static val* varonce18;
+val* var19 /* : String */;
+char* var20 /* : CString */;
+val* var21 /* : String */;
+val* var22 /* : nullable Int */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Bool */;
+val* var25 /* : nullable Bool */;
+val* var26 /* : String */;
+val* var27 /* : String */;
+var_child = p0;
+{
+{ /* Inline parser_nodes$ASendExpr$n_expr (self) on <self:ASendExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ASendExpr> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var87 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1958);
-fatal_exit(1);
-} else {
-{ /* Inline modelize_property#MPropDef#has_supercall= (var87,1) on <var87:nullable MPropDef> */
-if (unlikely(var87 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__modelize_property, 483);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2103);
 fatal_exit(1);
 }
-var87->attrs[COLOR_nitc__modelize_property__MPropDef___has_supercall].s = 1; /* _has_supercall on <var87:nullable MPropDef> */
-RET_LABEL90:(void)0;
+var1 = var3;
+RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline typing#TypeVisitor#mpropdef (var_v) on <var_v:TypeVisitor> */
-var93 = var_v->attrs[COLOR_nitc__typing__TypeVisitor___mpropdef].val; /* _mpropdef on <var_v:TypeVisitor> */
-var91 = var93;
-RET_LABEL92:(void)0;
+{ /* Inline kernel$Object$== (var_child,var1) on <var_child:AExpr> */
+var_other = var1;
+{
+{ /* Inline kernel$Object$is_same_instance (var_child,var_other) on <var_child:AExpr> */
+var8 = var_child == var_other;
+var6 = var8;
+goto RET_LABEL7;
+RET_LABEL7:(void)0;
 }
 }
-/* <var91:nullable MPropDef> isa MMethodDef */
-cltype95 = type_nitc__MMethodDef.color;
-idtype96 = type_nitc__MMethodDef.id;
-if(var91 == NULL) {
-var94 = 0;
-} else {
-if(cltype95 >= var91->type->table_size) {
-var94 = 0;
-} else {
-var94 = var91->type->type_table[cltype95] == idtype96;
+var4 = var6;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
-if (unlikely(!var94)) {
-var_class_name97 = var91 == NULL ? "null" : var91->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "MMethodDef", var_class_name97);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__typing, 1959);
-fatal_exit(1);
+if (var4){
+if (unlikely(varonce==NULL)) {
+var9 = NEW_core__NativeArray((int)3l, &type_core__NativeArray__core__String);
+if (likely(varonce10!=NULL)) {
+var11 = varonce10;
+} else {
+var12 = "to be the receiver of `";
+var14 = (val*)(23l<<2|1);
+var15 = (val*)(23l<<2|1);
+var16 = (val*)((long)(0)<<2|3);
+var17 = (val*)((long)(0)<<2|3);
+var13 = core__flat___CString___to_s_unsafe(var12, var14, var15, var16, var17);
+var11 = var13;
+varonce10 = var11;
+}
+((struct instance_core__NativeArray*)var9)->values[0]=var11;
+if (likely(varonce18!=NULL)) {
+var19 = varonce18;
+} else {
+var20 = "`";
+var22 = (val*)(1l<<2|1);
+var23 = (val*)(1l<<2|1);
+var24 = (val*)((long)(0)<<2|3);
+var25 = (val*)((long)(0)<<2|3);
+var21 = core__flat___CString___to_s_unsafe(var20, var22, var23, var24, var25);
+var19 = var21;
+varonce18 = var19;
+}
+((struct instance_core__NativeArray*)var9)->values[2]=var19;
+} else {
+var9 = varonce;
+varonce = NULL;
 }
 {
-{ /* Inline typing#ASuperExpr#mpropdef= (self,var91) on <self:ASuperExpr> */
-self->attrs[COLOR_nitc__typing__ASuperExpr___mpropdef].val = var91; /* _mpropdef on <self:ASuperExpr> */
-RET_LABEL98:(void)0;
+var26 = ((val*(*)(val* self))(self->class->vft[COLOR_nitc__typing__ASendExpr__property_name]))(self); /* property_name on <self:ASendExpr>*/
 }
+((struct instance_core__NativeArray*)var9)->values[1]=var26;
+{
+var27 = ((val*(*)(val* self))(var9->class->vft[COLOR_core__abstract_text__NativeArray__native_to_s]))(var9); /* native_to_s on <var9:NativeArray[String]>*/
 }
-RET_LABEL:;
+varonce = var9;
+var = var27;
+goto RET_LABEL;
+} else {
 }
-/* method typing#ASuperExpr#signaturemap for (self: ASuperExpr): nullable SignatureMap */
-val* nitc__typing___ASuperExpr___signaturemap(val* self) {
-val* var /* : nullable SignatureMap */;
-val* var1 /* : nullable SignatureMap */;
-var1 = self->attrs[COLOR_nitc__typing__ASuperExpr___signaturemap].val; /* _signaturemap on <self:ASuperExpr> */
-var = var1;
+var = ((val*)NULL);
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method typing#ASuperExpr#signaturemap= for (self: ASuperExpr, nullable SignatureMap) */
-void nitc__typing___ASuperExpr___signaturemap_61d(val* self, val* p0) {
-self->attrs[COLOR_nitc__typing__ASuperExpr___signaturemap].val = p0; /* _signaturemap on <self:ASuperExpr> */
-RET_LABEL:;
-}