X-Git-Url: http://nitlanguage.org

diff --git a/c_src/nitc__parser_prod.sep.3.c b/c_src/nitc__parser_prod.sep.3.c
index cdafa87..863290d 100644
--- a/c_src/nitc__parser_prod.sep.3.c
+++ b/c_src/nitc__parser_prod.sep.3.c
@@ -1,207 +1,50 @@
 #include "nitc__parser_prod.sep.0.h"
-/* method parser_prod#AIfExpr#visit_all for (self: AIfExpr, Visitor) */
-void nitc__parser_prod___AIfExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwif */;
-val* var1 /* : AExpr */;
-val* var2 /* : TKwthen */;
-val* var3 /* : nullable AExpr */;
-val* var4 /* : nullable TKwelse */;
-val* var5 /* : nullable AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwif].val; /* _n_kwif on <self:AIfExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2994);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val; /* _n_expr on <self:AIfExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2995);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwthen].val; /* _n_kwthen on <self:AIfExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2996);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var3 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var4 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwelse].val; /* _n_kwelse on <self:AIfExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var5 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-RET_LABEL:;
-}
-/* method parser_prod#AIfexprExpr#init_aifexprexpr for (self: AIfexprExpr, nullable TKwif, nullable AExpr, nullable TKwthen, nullable AExpr, nullable TKwelse, nullable AExpr) */
-void nitc__parser_prod___AIfexprExpr___init_aifexprexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4, val* p5) {
-val* var_n_kwif /* var n_kwif: nullable TKwif */;
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_kwthen /* var n_kwthen: nullable TKwthen */;
-val* var_n_then /* var n_then: nullable AExpr */;
-val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
-val* var_n_else /* var n_else: nullable AExpr */;
+/* method parser_prod$AAbortExpr$init_aabortexpr for (self: AAbortExpr, nullable TKwabort) */
+void nitc__parser_prod___AAbortExpr___init_aabortexpr(val* self, val* p0) {
+val* var_n_kwabort /* var n_kwabort: nullable TKwabort */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AIfexprExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AAbortExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwif = p0;
-var_n_expr = p1;
-var_n_kwthen = p2;
-var_n_then = p3;
-var_n_kwelse = p4;
-var_n_else = p5;
-if (unlikely(var_n_kwif == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3012);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val = var_n_kwif; /* _n_kwif on <self:AIfexprExpr> */
-if (var_n_kwif == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3013);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwif,self) on <var_n_kwif:nullable TKwif> */
-if (unlikely(var_n_kwif == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_kwif->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwif:nullable TKwif> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3014);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AIfexprExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3015);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL3:(void)0;
-}
-}
-if (unlikely(var_n_kwthen == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3016);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val = var_n_kwthen; /* _n_kwthen on <self:AIfexprExpr> */
-if (var_n_kwthen == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3017);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwthen,self) on <var_n_kwthen:nullable TKwthen> */
-if (unlikely(var_n_kwthen == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_kwthen->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwthen:nullable TKwthen> */
-RET_LABEL4:(void)0;
-}
+var_n_kwabort = p0;
+if (unlikely(var_n_kwabort == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(var_n_then == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3018);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val = var_n_then; /* _n_then on <self:AIfexprExpr> */
-if (var_n_then == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3019);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2829);
 fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_then,self) on <var_n_then:nullable AExpr> */
-if (unlikely(var_n_then == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_then->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_then:nullable AExpr> */
-RET_LABEL5:(void)0;
-}
 }
-if (unlikely(var_n_kwelse == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3020);
-fatal_exit(1);
+self->attrs[COLOR_nitc__parser_nodes__AAbortExpr___n_kwabort].val = var_n_kwabort; /* _n_kwabort on <self:AAbortExpr> */
+if (var_n_kwabort == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AIfexprExpr> */
-if (var_n_kwelse == NULL) {
 PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3021);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2830);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse> */
-if (unlikely(var_n_kwelse == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwabort,self) on <var_n_kwabort:nullable TKwabort> */
+if (unlikely(var_n_kwabort == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse> */
-RET_LABEL6:(void)0;
-}
-}
-if (unlikely(var_n_else == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3022);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val = var_n_else; /* _n_else on <self:AIfexprExpr> */
-if (var_n_else == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3023);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_else,self) on <var_n_else:nullable AExpr> */
-if (unlikely(var_n_else == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_else->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_else:nullable AExpr> */
-RET_LABEL7:(void)0;
+var_n_kwabort->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwabort:nullable TKwabort> */
+RET_LABEL2:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIfexprExpr#replace_child for (self: AIfexprExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AIfexprExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AAbortExpr$replace_child for (self: AAbortExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AAbortExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwif */;
+val* var /* : TKwabort */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -210,59 +53,22 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : AExpr */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : TKwthen */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-val* var27 /* : AExpr */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-const char* var_class_name36;
-val* var37 /* : TKwelse */;
-short int var38 /* : Bool */;
-short int var40 /* : Bool */;
-short int var42 /* : Bool */;
-short int var43 /* : Bool */;
-int cltype44;
-int idtype45;
-const char* var_class_name46;
-val* var47 /* : AExpr */;
-short int var48 /* : Bool */;
-short int var50 /* : Bool */;
-short int var52 /* : Bool */;
-short int var53 /* : Bool */;
-int cltype54;
-int idtype55;
-const char* var_class_name56;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val; /* _n_kwif on <self:AIfexprExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AAbortExpr___n_kwabort].val; /* _n_kwabort on <self:AAbortExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3028);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwabort");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2835);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwif> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwabort> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwif> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwabort> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -275,9 +81,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwif */
-cltype = type_nitc__TKwif.color;
-idtype = type_nitc__TKwif.id;
+/* <var_new_child:nullable ANode> isa TKwabort */
+cltype = type_nitc__TKwabort.color;
+idtype = type_nitc__TKwabort.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -289,549 +95,522 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwif", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3029);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwabort", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2836);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIfexprExpr___n_kwif_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_kwif= on <self:AIfexprExpr>*/
+nitc__parser_prod___AAbortExpr___n_kwabort_61d(self, var_new_child); /* Direct call parser_prod$AAbortExpr$n_kwabort= on <self:AAbortExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3032);
-fatal_exit(1);
+RET_LABEL:;
 }
+/* method parser_prod$AAbortExpr$n_kwabort= for (self: AAbortExpr, TKwabort) */
+void nitc__parser_prod___AAbortExpr___n_kwabort_61d(val* self, val* p0) {
+val* var_node /* var node: TKwabort */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AAbortExpr___n_kwabort].val = var_node; /* _n_kwabort on <self:AAbortExpr> */
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:AExpr> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwabort> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwabort> */
+RET_LABEL1:(void)0;
 }
 }
-if (var8){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype14 = type_nitc__AExpr.color;
-idtype15 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
+RET_LABEL:;
 }
+/* method parser_prod$AAbortExpr$visit_all for (self: AAbortExpr, Visitor) */
+void nitc__parser_prod___AAbortExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+val* var_v /* var v: Visitor */;
+val* var /* : TKwabort */;
+var_v = p0;
+var = self->attrs[COLOR_nitc__parser_nodes__AAbortExpr___n_kwabort].val; /* _n_kwabort on <self:AAbortExpr> */
+if (unlikely(var == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3033);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwabort");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2850);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIfexprExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_expr= on <self:AIfexprExpr>*/
-}
-goto RET_LABEL;
-} else {
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val; /* _n_kwthen on <self:AIfexprExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3036);
-fatal_exit(1);
+RET_LABEL:;
 }
+/* method parser_prod$AContinueExpr$init_acontinueexpr for (self: AContinueExpr, nullable TKwcontinue, nullable ALabel) */
+void nitc__parser_prod___AContinueExpr___init_acontinueexpr(val* self, val* p0, val* p1) {
+val* var_n_kwcontinue /* var n_kwcontinue: nullable TKwcontinue */;
+val* var_n_label /* var n_label: nullable ALabel */;
+short int var /* : Bool */;
+short int var2 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var4 /* : Bool */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
+short int var8 /* : Bool */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:TKwthen> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:TKwthen> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+{ /* Inline kernel$Object$init (self) on <self:AContinueExpr> */
+RET_LABEL1:(void)0;
 }
 }
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa TKwthen */
-cltype24 = type_nitc__TKwthen.color;
-idtype25 = type_nitc__TKwthen.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
+var_n_kwcontinue = p0;
+var_n_label = p1;
+self->attrs[COLOR_nitc__parser_nodes__AContinueExpr___n_kwcontinue].val = var_n_kwcontinue; /* _n_kwcontinue on <self:AContinueExpr> */
+if (var_n_kwcontinue == NULL) {
+var = 0; /* is null */
 } else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwthen", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3037);
-fatal_exit(1);
+var = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_kwcontinue,((val*)NULL)) on <var_n_kwcontinue:nullable TKwcontinue> */
+var_other = ((val*)NULL);
 {
-nitc__parser_prod___AIfexprExpr___n_kwthen_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_kwthen= on <self:AIfexprExpr>*/
+var4 = ((short int(*)(val* self, val* p0))(var_n_kwcontinue->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_kwcontinue, var_other); /* == on <var_n_kwcontinue:nullable TKwcontinue(TKwcontinue)>*/
 }
-goto RET_LABEL;
-} else {
+var5 = !var4;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
-var27 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
-if (unlikely(var27 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3040);
-fatal_exit(1);
+var = var2;
 }
+if (var){
 {
-{ /* Inline kernel#Object#== (var27,var_old_child) on <var27:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var27,var_other) on <var27:AExpr> */
-var32 = var27 == var_other;
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
-}
-}
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwcontinue,self) on <var_n_kwcontinue:nullable TKwcontinue(TKwcontinue)> */
+var_n_kwcontinue->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwcontinue:nullable TKwcontinue(TKwcontinue)> */
+RET_LABEL6:(void)0;
 }
 }
-if (var28){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype34 = type_nitc__AExpr.color;
-idtype35 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var33 = 0;
 } else {
-if(cltype34 >= var_new_child->type->table_size) {
-var33 = 0;
+}
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AContinueExpr> */
+if (var_n_label == NULL) {
+var7 = 0; /* is null */
 } else {
-var33 = var_new_child->type->type_table[cltype34] == idtype35;
+var7 = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+var_other = ((val*)NULL);
+{
+var10 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
 }
-if (unlikely(!var33)) {
-var_class_name36 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name36);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3041);
-fatal_exit(1);
+var11 = !var10;
+var8 = var11;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
+var7 = var8;
+}
+if (var7){
 {
-nitc__parser_prod___AIfexprExpr___n_then_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_then= on <self:AIfexprExpr>*/
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
+RET_LABEL12:(void)0;
+}
 }
-goto RET_LABEL;
 } else {
 }
-var37 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val; /* _n_kwelse on <self:AIfexprExpr> */
-if (unlikely(var37 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3044);
-fatal_exit(1);
+RET_LABEL:;
 }
-{
-{ /* Inline kernel#Object#== (var37,var_old_child) on <var37:TKwelse> */
+/* method parser_prod$AContinueExpr$replace_child for (self: AContinueExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AContinueExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+val* var_old_child /* var old_child: ANode */;
+val* var_new_child /* var new_child: nullable ANode */;
+val* var /* : nullable TKwcontinue */;
+short int var1 /* : Bool */;
+short int var2 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+val* var8 /* : nullable ALabel */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+const char* var_class_name18;
+var_old_child = p0;
+var_new_child = p1;
+var = self->attrs[COLOR_nitc__parser_nodes__AContinueExpr___n_kwcontinue].val; /* _n_kwcontinue on <self:AContinueExpr> */
+if (var == NULL) {
+var1 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:nullable TKwcontinue> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var37,var_other) on <var37:TKwelse> */
-var42 = var37 == var_other;
-var40 = var42;
-goto RET_LABEL41;
-RET_LABEL41:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:nullable TKwcontinue(TKwcontinue)> */
+var6 = var == var_other;
+var4 = var6;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
-var38 = var40;
-goto RET_LABEL39;
-RET_LABEL39:(void)0;
+var2 = var4;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
+var1 = var2;
 }
-if (var38){
-/* <var_new_child:nullable ANode> isa TKwelse */
-cltype44 = type_nitc__TKwelse.color;
-idtype45 = type_nitc__TKwelse.id;
+if (var1){
+/* <var_new_child:nullable ANode> isa nullable TKwcontinue */
+cltype = type_nullable__nitc__TKwcontinue.color;
+idtype = type_nullable__nitc__TKwcontinue.id;
 if(var_new_child == NULL) {
-var43 = 0;
+var7 = 1;
 } else {
-if(cltype44 >= var_new_child->type->table_size) {
-var43 = 0;
+if(cltype >= var_new_child->type->table_size) {
+var7 = 0;
 } else {
-var43 = var_new_child->type->type_table[cltype44] == idtype45;
+var7 = var_new_child->type->type_table[cltype] == idtype;
 }
 }
-if (unlikely(!var43)) {
-var_class_name46 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwelse", var_class_name46);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3045);
+if (unlikely(!var7)) {
+var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TKwcontinue", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2868);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIfexprExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_kwelse= on <self:AIfexprExpr>*/
+nitc__parser_prod___AContinueExpr___n_kwcontinue_61d(self, var_new_child); /* Direct call parser_prod$AContinueExpr$n_kwcontinue= on <self:AContinueExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var47 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
-if (unlikely(var47 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_else");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3048);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var47,var_old_child) on <var47:AExpr> */
+var8 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AContinueExpr> */
+if (var8 == NULL) {
+var9 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var8,var_old_child) on <var8:nullable ALabel> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var47,var_other) on <var47:AExpr> */
-var52 = var47 == var_other;
-var50 = var52;
-goto RET_LABEL51;
-RET_LABEL51:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var8,var_other) on <var8:nullable ALabel(ALabel)> */
+var14 = var8 == var_other;
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-var48 = var50;
-goto RET_LABEL49;
-RET_LABEL49:(void)0;
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
+var9 = var10;
 }
-if (var48){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype54 = type_nitc__AExpr.color;
-idtype55 = type_nitc__AExpr.id;
+if (var9){
+/* <var_new_child:nullable ANode> isa nullable ALabel */
+cltype16 = type_nullable__nitc__ALabel.color;
+idtype17 = type_nullable__nitc__ALabel.id;
 if(var_new_child == NULL) {
-var53 = 0;
+var15 = 1;
 } else {
-if(cltype54 >= var_new_child->type->table_size) {
-var53 = 0;
+if(cltype16 >= var_new_child->type->table_size) {
+var15 = 0;
 } else {
-var53 = var_new_child->type->type_table[cltype54] == idtype55;
+var15 = var_new_child->type->type_table[cltype16] == idtype17;
 }
 }
-if (unlikely(!var53)) {
-var_class_name56 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name56);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3049);
+if (unlikely(!var15)) {
+var_class_name18 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name18);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2872);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIfexprExpr___n_else_61d(self, var_new_child); /* Direct call parser_prod#AIfexprExpr#n_else= on <self:AIfexprExpr>*/
+nitc__parser_prod___AContinueExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$AContinueExpr$n_label= on <self:AContinueExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIfexprExpr#n_kwif= for (self: AIfexprExpr, TKwif) */
-void nitc__parser_prod___AIfexprExpr___n_kwif_61d(val* self, val* p0) {
-val* var_node /* var node: TKwif */;
+/* method parser_prod$AContinueExpr$n_kwcontinue= for (self: AContinueExpr, nullable TKwcontinue) */
+void nitc__parser_prod___AContinueExpr___n_kwcontinue_61d(val* self, val* p0) {
+val* var_node /* var node: nullable TKwcontinue */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val = var_node; /* _n_kwif on <self:AIfexprExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AContinueExpr___n_kwcontinue].val = var_node; /* _n_kwcontinue on <self:AContinueExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable TKwcontinue> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwif> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwif> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TKwcontinue(TKwcontinue)>*/
 }
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
-RET_LABEL:;
+var = var1;
 }
-/* method parser_prod#AIfexprExpr#n_expr= for (self: AIfexprExpr, AExpr) */
-void nitc__parser_prod___AIfexprExpr___n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val = var_node; /* _n_expr on <self:AIfexprExpr> */
+if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable TKwcontinue(TKwcontinue)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TKwcontinue(TKwcontinue)> */
+RET_LABEL5:(void)0;
+}
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIfexprExpr#n_kwthen= for (self: AIfexprExpr, TKwthen) */
-void nitc__parser_prod___AIfexprExpr___n_kwthen_61d(val* self, val* p0) {
-val* var_node /* var node: TKwthen */;
+/* method parser_prod$AContinueExpr$n_label= for (self: AContinueExpr, nullable ALabel) */
+void nitc__parser_prod___AContinueExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+val* var_node /* var node: nullable ALabel */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val = var_node; /* _n_kwthen on <self:AIfexprExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AContinueExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwthen> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwthen> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
 }
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
-RET_LABEL:;
+var = var1;
 }
-/* method parser_prod#AIfexprExpr#n_then= for (self: AIfexprExpr, AExpr) */
-void nitc__parser_prod___AIfexprExpr___n_then_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val = var_node; /* _n_then on <self:AIfexprExpr> */
+if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
+RET_LABEL5:(void)0;
+}
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIfexprExpr#n_kwelse= for (self: AIfexprExpr, TKwelse) */
-void nitc__parser_prod___AIfexprExpr___n_kwelse_61d(val* self, val* p0) {
-val* var_node /* var node: TKwelse */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AIfexprExpr> */
+/* method parser_prod$AContinueExpr$visit_all for (self: AContinueExpr, Visitor) */
+void nitc__parser_prod___AContinueExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+val* var_v /* var v: Visitor */;
+val* var /* : nullable TKwcontinue */;
+val* var1 /* : nullable ALabel */;
+var_v = p0;
+var = self->attrs[COLOR_nitc__parser_nodes__AContinueExpr___n_kwcontinue].val; /* _n_kwcontinue on <self:AContinueExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwelse> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwelse> */
-RET_LABEL1:(void)0;
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
+var1 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AContinueExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIfexprExpr#n_else= for (self: AIfexprExpr, AExpr) */
-void nitc__parser_prod___AIfexprExpr___n_else_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val = var_node; /* _n_else on <self:AIfexprExpr> */
+/* method parser_prod$ADoExpr$init_adoexpr for (self: ADoExpr, nullable TKwdo, nullable AExpr, nullable TKwcatch, nullable AExpr, nullable ALabel) */
+void nitc__parser_prod___ADoExpr___init_adoexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
+val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
+val* var_n_block /* var n_block: nullable AExpr */;
+val* var_n_kwcatch /* var n_kwcatch: nullable TKwcatch */;
+val* var_n_catch /* var n_catch: nullable AExpr */;
+val* var_n_label /* var n_label: nullable ALabel */;
+short int var /* : Bool */;
+short int var3 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var5 /* : Bool */;
+short int var6 /* : Bool */;
+short int var8 /* : Bool */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
+short int var15 /* : Bool */;
+short int var17 /* : Bool */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
+short int var21 /* : Bool */;
+short int var23 /* : Bool */;
+short int var24 /* : Bool */;
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ADoExpr> */
 RET_LABEL1:(void)0;
 }
 }
-RET_LABEL:;
-}
-/* method parser_prod#AIfexprExpr#visit_all for (self: AIfexprExpr, Visitor) */
-void nitc__parser_prod___AIfexprExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwif */;
-val* var1 /* : AExpr */;
-val* var2 /* : TKwthen */;
-val* var3 /* : AExpr */;
-val* var4 /* : TKwelse */;
-val* var5 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val; /* _n_kwif on <self:AIfexprExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3088);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+var_n_kwdo = p0;
+var_n_block = p1;
+var_n_kwcatch = p2;
+var_n_catch = p3;
+var_n_label = p4;
+if (unlikely(var_n_kwdo == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3089);
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2904);
 fatal_exit(1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:ADoExpr> */
+if (var_n_kwdo == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val; /* _n_kwthen on <self:AIfexprExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3090);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2905);
 fatal_exit(1);
+} else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
+if (unlikely(var_n_kwdo == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var3 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3091);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var4 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val; /* _n_kwelse on <self:AIfexprExpr> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3092);
-fatal_exit(1);
+var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
+RET_LABEL2:(void)0;
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
 }
-var5 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_else");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3093);
-fatal_exit(1);
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val = var_n_block; /* _n_block on <self:ADoExpr> */
+if (var_n_block == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+var5 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
 }
-RET_LABEL:;
+var6 = !var5;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
-/* method parser_prod#AWhileExpr#init_awhileexpr for (self: AWhileExpr, nullable TKwwhile, nullable AExpr, nullable TKwdo, nullable AExpr, nullable ALabel) */
-void nitc__parser_prod___AWhileExpr___init_awhileexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
-val* var_n_kwwhile /* var n_kwwhile: nullable TKwwhile */;
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
-val* var_n_block /* var n_block: nullable AExpr */;
-val* var_n_label /* var n_label: nullable ALabel */;
-short int var /* : Bool */;
-short int var5 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var7 /* : Bool */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
-short int var14 /* : Bool */;
-{
-{ /* Inline kernel#Object#init (self) on <self:AWhileExpr> */
-RET_LABEL1:(void)0;
+var = var3;
 }
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
+var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
+RET_LABEL7:(void)0;
 }
-var_n_kwwhile = p0;
-var_n_expr = p1;
-var_n_kwdo = p2;
-var_n_block = p3;
-var_n_label = p4;
-if (unlikely(var_n_kwwhile == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3105);
-fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val = var_n_kwwhile; /* _n_kwwhile on <self:AWhileExpr> */
-if (var_n_kwwhile == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3106);
-fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwwhile,self) on <var_n_kwwhile:nullable TKwwhile> */
-if (unlikely(var_n_kwwhile == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_kwwhile->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwwhile:nullable TKwwhile> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3107);
-fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AWhileExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3108);
-fatal_exit(1);
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwcatch].val = var_n_kwcatch; /* _n_kwcatch on <self:ADoExpr> */
+if (var_n_kwcatch == NULL) {
+var8 = 0; /* is null */
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+var8 = 1; /* arg is null and recv is not */
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL3:(void)0;
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_kwcatch,((val*)NULL)) on <var_n_kwcatch:nullable TKwcatch> */
+var_other = ((val*)NULL);
+{
+var11 = ((short int(*)(val* self, val* p0))(var_n_kwcatch->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_kwcatch, var_other); /* == on <var_n_kwcatch:nullable TKwcatch(TKwcatch)>*/
 }
+var12 = !var11;
+var9 = var12;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
-if (unlikely(var_n_kwdo == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3109);
-fatal_exit(1);
+var8 = var9;
 }
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AWhileExpr> */
-if (var_n_kwdo == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3110);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
-if (unlikely(var_n_kwdo == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+if (var8){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwcatch,self) on <var_n_kwcatch:nullable TKwcatch(TKwcatch)> */
+var_n_kwcatch->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwcatch:nullable TKwcatch(TKwcatch)> */
+RET_LABEL13:(void)0;
 }
-var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
-RET_LABEL4:(void)0;
 }
+} else {
 }
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val = var_n_block; /* _n_block on <self:AWhileExpr> */
-if (var_n_block == NULL) {
-var = 0; /* is null */
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_catch].val = var_n_catch; /* _n_catch on <self:ADoExpr> */
+if (var_n_catch == NULL) {
+var14 = 0; /* is null */
 } else {
-var = 1; /* arg is null and recv is not */
+var14 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_n_catch,((val*)NULL)) on <var_n_catch:nullable AExpr> */
 var_other = ((val*)NULL);
 {
-var7 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
+var17 = ((short int(*)(val* self, val* p0))(var_n_catch->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_catch, var_other); /* == on <var_n_catch:nullable AExpr(AExpr)>*/
 }
-var8 = !var7;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var18 = !var17;
+var15 = var18;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
 }
-var = var5;
+var14 = var15;
 }
-if (var){
+if (var14){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
-var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
-RET_LABEL9:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_n_catch,self) on <var_n_catch:nullable AExpr(AExpr)> */
+var_n_catch->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_catch:nullable AExpr(AExpr)> */
+RET_LABEL19:(void)0;
 }
 }
 } else {
 }
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:ADoExpr> */
 if (var_n_label == NULL) {
-var10 = 0; /* is null */
+var20 = 0; /* is null */
 } else {
-var10 = 1; /* arg is null and recv is not */
+var20 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
 var_other = ((val*)NULL);
 {
-var13 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
+var23 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
 }
-var14 = !var13;
-var11 = var14;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var24 = !var23;
+var21 = var24;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
-var10 = var11;
+var20 = var21;
 }
-if (var10){
+if (var20){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
 var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
-RET_LABEL15:(void)0;
+RET_LABEL25:(void)0;
 }
 }
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#replace_child for (self: AWhileExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ADoExpr$replace_child for (self: ADoExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ADoExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwwhile */;
+val* var /* : TKwdo */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -840,53 +619,58 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : AExpr */;
+val* var7 /* : nullable AExpr */;
 short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : TKwdo */;
-short int var18 /* : Bool */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+val* var18 /* : nullable TKwcatch */;
+short int var19 /* : Bool */;
 short int var20 /* : Bool */;
 short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-val* var27 /* : nullable AExpr */;
-short int var28 /* : Bool */;
-short int var29 /* : Bool */;
+short int var24 /* : Bool */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+const char* var_class_name28;
+val* var29 /* : nullable AExpr */;
+short int var30 /* : Bool */;
 short int var31 /* : Bool */;
 short int var33 /* : Bool */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-val* var38 /* : nullable ALabel */;
-short int var39 /* : Bool */;
-short int var40 /* : Bool */;
+short int var35 /* : Bool */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+const char* var_class_name39;
+val* var40 /* : nullable ALabel */;
+short int var41 /* : Bool */;
 short int var42 /* : Bool */;
 short int var44 /* : Bool */;
-short int var45 /* : Bool */;
-int cltype46;
-int idtype47;
-const char* var_class_name48;
+short int var46 /* : Bool */;
+short int var47 /* : Bool */;
+int cltype48;
+int idtype49;
+const char* var_class_name50;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val; /* _n_kwwhile on <self:AWhileExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwdo].val; /* _n_kwdo on <self:ADoExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwhile");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3119);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2918);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwwhile> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwdo> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwwhile> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwdo> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -899,9 +683,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwwhile */
-cltype = type_nitc__TKwwhile.color;
-idtype = type_nitc__TKwwhile.id;
+/* <var_new_child:nullable ANode> isa TKwdo */
+cltype = type_nitc__TKwdo.color;
+idtype = type_nitc__TKwdo.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -913,243 +697,291 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwwhile", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3120);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2919);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWhileExpr___n_kwwhile_61d(self, var_new_child); /* Direct call parser_prod#AWhileExpr#n_kwwhile= on <self:AWhileExpr>*/
+nitc__parser_prod___ADoExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod$ADoExpr$n_kwdo= on <self:ADoExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3123);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:AExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val; /* _n_block on <self:ADoExpr> */
+if (var7 == NULL) {
+var8 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:nullable AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:AExpr> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:nullable AExpr(AExpr)> */
+var13 = var7 == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
 }
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
+var8 = var9;
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype14 = type_nitc__AExpr.color;
-idtype15 = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype15 = type_nullable__nitc__AExpr.color;
+idtype16 = type_nullable__nitc__AExpr.id;
 if(var_new_child == NULL) {
-var13 = 0;
+var14 = 1;
 } else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
+if(cltype15 >= var_new_child->type->table_size) {
+var14 = 0;
 } else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
+var14 = var_new_child->type->type_table[cltype15] == idtype16;
 }
 }
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3124);
+if (unlikely(!var14)) {
+var_class_name17 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2923);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWhileExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AWhileExpr#n_expr= on <self:AWhileExpr>*/
+nitc__parser_prod___ADoExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod$ADoExpr$n_block= on <self:ADoExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val; /* _n_kwdo on <self:AWhileExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3127);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:TKwdo> */
+var18 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwcatch].val; /* _n_kwcatch on <self:ADoExpr> */
+if (var18 == NULL) {
+var19 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var18,var_old_child) on <var18:nullable TKwcatch> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:TKwdo> */
-var22 = var17 == var_other;
+{ /* Inline kernel$Object$is_same_instance (var18,var_other) on <var18:nullable TKwcatch(TKwcatch)> */
+var24 = var18 == var_other;
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
+}
+}
 var20 = var22;
 goto RET_LABEL21;
 RET_LABEL21:(void)0;
 }
+var19 = var20;
 }
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa TKwdo */
-cltype24 = type_nitc__TKwdo.color;
-idtype25 = type_nitc__TKwdo.id;
+if (var19){
+/* <var_new_child:nullable ANode> isa nullable TKwcatch */
+cltype26 = type_nullable__nitc__TKwcatch.color;
+idtype27 = type_nullable__nitc__TKwcatch.id;
 if(var_new_child == NULL) {
-var23 = 0;
+var25 = 1;
 } else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
+if(cltype26 >= var_new_child->type->table_size) {
+var25 = 0;
 } else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
+var25 = var_new_child->type->type_table[cltype26] == idtype27;
 }
 }
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3128);
+if (unlikely(!var25)) {
+var_class_name28 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TKwcatch", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2927);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWhileExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod#AWhileExpr#n_kwdo= on <self:AWhileExpr>*/
+nitc__parser_prod___ADoExpr___n_kwcatch_61d(self, var_new_child); /* Direct call parser_prod$ADoExpr$n_kwcatch= on <self:ADoExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var27 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
-if (var27 == NULL) {
-var28 = 0; /* <var_old_child:ANode> cannot be null */
+var29 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_catch].val; /* _n_catch on <self:ADoExpr> */
+if (var29 == NULL) {
+var30 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var27,var_old_child) on <var27:nullable AExpr> */
+{ /* Inline kernel$Object$== (var29,var_old_child) on <var29:nullable AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var27,var_other) on <var27:nullable AExpr(AExpr)> */
-var33 = var27 == var_other;
+{ /* Inline kernel$Object$is_same_instance (var29,var_other) on <var29:nullable AExpr(AExpr)> */
+var35 = var29 == var_other;
+var33 = var35;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
+}
+}
 var31 = var33;
 goto RET_LABEL32;
 RET_LABEL32:(void)0;
 }
+var30 = var31;
 }
-var29 = var31;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
-}
-var28 = var29;
-}
-if (var28){
+if (var30){
 /* <var_new_child:nullable ANode> isa nullable AExpr */
-cltype35 = type_nullable__nitc__AExpr.color;
-idtype36 = type_nullable__nitc__AExpr.id;
+cltype37 = type_nullable__nitc__AExpr.color;
+idtype38 = type_nullable__nitc__AExpr.id;
 if(var_new_child == NULL) {
-var34 = 1;
+var36 = 1;
 } else {
-if(cltype35 >= var_new_child->type->table_size) {
-var34 = 0;
+if(cltype37 >= var_new_child->type->table_size) {
+var36 = 0;
 } else {
-var34 = var_new_child->type->type_table[cltype35] == idtype36;
+var36 = var_new_child->type->type_table[cltype37] == idtype38;
 }
 }
-if (unlikely(!var34)) {
-var_class_name37 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3132);
+if (unlikely(!var36)) {
+var_class_name39 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name39);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2931);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWhileExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod#AWhileExpr#n_block= on <self:AWhileExpr>*/
+nitc__parser_prod___ADoExpr___n_catch_61d(self, var_new_child); /* Direct call parser_prod$ADoExpr$n_catch= on <self:ADoExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var38 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWhileExpr> */
-if (var38 == NULL) {
-var39 = 0; /* <var_old_child:ANode> cannot be null */
+var40 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ADoExpr> */
+if (var40 == NULL) {
+var41 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var38,var_old_child) on <var38:nullable ALabel> */
+{ /* Inline kernel$Object$== (var40,var_old_child) on <var40:nullable ALabel> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var38,var_other) on <var38:nullable ALabel(ALabel)> */
-var44 = var38 == var_other;
+{ /* Inline kernel$Object$is_same_instance (var40,var_other) on <var40:nullable ALabel(ALabel)> */
+var46 = var40 == var_other;
+var44 = var46;
+goto RET_LABEL45;
+RET_LABEL45:(void)0;
+}
+}
 var42 = var44;
 goto RET_LABEL43;
 RET_LABEL43:(void)0;
 }
+var41 = var42;
 }
-var40 = var42;
-goto RET_LABEL41;
-RET_LABEL41:(void)0;
-}
-var39 = var40;
-}
-if (var39){
+if (var41){
 /* <var_new_child:nullable ANode> isa nullable ALabel */
-cltype46 = type_nullable__nitc__ALabel.color;
-idtype47 = type_nullable__nitc__ALabel.id;
+cltype48 = type_nullable__nitc__ALabel.color;
+idtype49 = type_nullable__nitc__ALabel.id;
 if(var_new_child == NULL) {
-var45 = 1;
+var47 = 1;
 } else {
-if(cltype46 >= var_new_child->type->table_size) {
-var45 = 0;
+if(cltype48 >= var_new_child->type->table_size) {
+var47 = 0;
 } else {
-var45 = var_new_child->type->type_table[cltype46] == idtype47;
+var47 = var_new_child->type->type_table[cltype48] == idtype49;
 }
 }
-if (unlikely(!var45)) {
-var_class_name48 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3136);
+if (unlikely(!var47)) {
+var_class_name50 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name50);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2935);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod#AWhileExpr#n_label= on <self:AWhileExpr>*/
+nitc__parser_prod___ADoExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$ADoExpr$n_label= on <self:ADoExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#n_kwwhile= for (self: AWhileExpr, TKwwhile) */
-void nitc__parser_prod___AWhileExpr___n_kwwhile_61d(val* self, val* p0) {
-val* var_node /* var node: TKwwhile */;
+/* method parser_prod$ADoExpr$n_kwdo= for (self: ADoExpr, TKwdo) */
+void nitc__parser_prod___ADoExpr___n_kwdo_61d(val* self, val* p0) {
+val* var_node /* var node: TKwdo */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val = var_node; /* _n_kwwhile on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:ADoExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwwhile> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwwhile> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwdo> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#n_expr= for (self: AWhileExpr, AExpr) */
-void nitc__parser_prod___AWhileExpr___n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
+/* method parser_prod$ADoExpr$n_block= for (self: ADoExpr, nullable AExpr) */
+void nitc__parser_prod___ADoExpr___n_block_61d(val* self, val* p0) {
+val* var_node /* var node: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val = var_node; /* _n_expr on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val = var_node; /* _n_block on <self:ADoExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
+}
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#n_kwdo= for (self: AWhileExpr, TKwdo) */
-void nitc__parser_prod___AWhileExpr___n_kwdo_61d(val* self, val* p0) {
-val* var_node /* var node: TKwdo */;
+/* method parser_prod$ADoExpr$n_kwcatch= for (self: ADoExpr, nullable TKwcatch) */
+void nitc__parser_prod___ADoExpr___n_kwcatch_61d(val* self, val* p0) {
+val* var_node /* var node: nullable TKwcatch */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwcatch].val = var_node; /* _n_kwcatch on <self:ADoExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable TKwcatch> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwdo> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TKwcatch(TKwcatch)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable TKwcatch(TKwcatch)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TKwcatch(TKwcatch)> */
+RET_LABEL5:(void)0;
+}
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#n_block= for (self: AWhileExpr, nullable AExpr) */
-void nitc__parser_prod___AWhileExpr___n_block_61d(val* self, val* p0) {
+/* method parser_prod$ADoExpr$n_catch= for (self: ADoExpr, nullable AExpr) */
+void nitc__parser_prod___ADoExpr___n_catch_61d(val* self, val* p0) {
 val* var_node /* var node: nullable AExpr */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -1157,14 +989,14 @@ val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val = var_node; /* _n_block on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_catch].val = var_node; /* _n_catch on <self:ADoExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
 var_other = ((val*)NULL);
 {
 var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
@@ -1178,7 +1010,7 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
 RET_LABEL5:(void)0;
 }
@@ -1187,8 +1019,8 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#n_label= for (self: AWhileExpr, nullable ALabel) */
-void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+/* method parser_prod$ADoExpr$n_label= for (self: ADoExpr, nullable ALabel) */
+void nitc__parser_prod___ADoExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
 val* var_node /* var node: nullable ALabel */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -1196,14 +1028,14 @@ val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AWhileExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:ADoExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
 var_other = ((val*)NULL);
 {
 var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
@@ -1217,7 +1049,7 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
 RET_LABEL5:(void)0;
 }
@@ -1226,158 +1058,258 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWhileExpr#visit_all for (self: AWhileExpr, Visitor) */
-void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ADoExpr$visit_all for (self: ADoExpr, Visitor) */
+void nitc__parser_prod___ADoExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : TKwwhile */;
-val* var1 /* : AExpr */;
-val* var2 /* : TKwdo */;
+val* var /* : TKwdo */;
+val* var1 /* : nullable AExpr */;
+val* var2 /* : nullable TKwcatch */;
 val* var3 /* : nullable AExpr */;
 val* var4 /* : nullable ALabel */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val; /* _n_kwwhile on <self:AWhileExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwdo].val; /* _n_kwdo on <self:ADoExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwhile");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3170);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3171);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2969);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val; /* _n_kwdo on <self:AWhileExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3172);
-fatal_exit(1);
+var1 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_block].val; /* _n_block on <self:ADoExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
+var2 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_kwcatch].val; /* _n_kwcatch on <self:ADoExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var3 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__ADoExpr___n_catch].val; /* _n_catch on <self:ADoExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var4 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWhileExpr> */
+var4 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ADoExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALoopExpr#init_aloopexpr for (self: ALoopExpr, nullable TKwloop, nullable AExpr, nullable ALabel) */
-void nitc__parser_prod___ALoopExpr___init_aloopexpr(val* self, val* p0, val* p1, val* p2) {
-val* var_n_kwloop /* var n_kwloop: nullable TKwloop */;
-val* var_n_block /* var n_block: nullable AExpr */;
-val* var_n_label /* var n_label: nullable ALabel */;
+/* method parser_prod$AIfExpr$init_aifexpr for (self: AIfExpr, nullable TKwif, nullable AExpr, nullable TKwthen, nullable AExpr, nullable TKwelse, nullable AExpr) */
+void nitc__parser_prod___AIfExpr___init_aifexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4, val* p5) {
+val* var_n_kwif /* var n_kwif: nullable TKwif */;
+val* var_n_expr /* var n_expr: nullable AExpr */;
+val* var_n_kwthen /* var n_kwthen: nullable TKwthen */;
+val* var_n_then /* var n_then: nullable AExpr */;
+val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
+val* var_n_else /* var n_else: nullable AExpr */;
 short int var /* : Bool */;
-short int var3 /* : Bool */;
-val* var_other /* var other: nullable Object */;
 short int var5 /* : Bool */;
-short int var6 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var7 /* : Bool */;
 short int var8 /* : Bool */;
-short int var9 /* : Bool */;
+short int var10 /* : Bool */;
 short int var11 /* : Bool */;
-short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
+short int var17 /* : Bool */;
+short int var19 /* : Bool */;
+short int var20 /* : Bool */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ALoopExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AIfExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwloop = p0;
-var_n_block = p1;
-var_n_label = p2;
-if (unlikely(var_n_kwloop == NULL)) {
+var_n_kwif = p0;
+var_n_expr = p1;
+var_n_kwthen = p2;
+var_n_then = p3;
+var_n_kwelse = p4;
+var_n_else = p5;
+if (unlikely(var_n_kwif == 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__parser_prod, 3184);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2986);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val = var_n_kwloop; /* _n_kwloop on <self:ALoopExpr> */
-if (var_n_kwloop == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwif].val = var_n_kwif; /* _n_kwif on <self:AIfExpr> */
+if (var_n_kwif == 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__parser_prod, 3185);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2987);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwloop,self) on <var_n_kwloop:nullable TKwloop> */
-if (unlikely(var_n_kwloop == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwif,self) on <var_n_kwif:nullable TKwif> */
+if (unlikely(var_n_kwif == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwloop->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwloop:nullable TKwloop> */
+var_n_kwif->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwif:nullable TKwif> */
 RET_LABEL2:(void)0;
 }
 }
-self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val = var_n_block; /* _n_block on <self:ALoopExpr> */
-if (var_n_block == NULL) {
-var = 0; /* is null */
-} else {
-var = 1; /* arg is null and recv is not */
+if (unlikely(var_n_expr == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
-var_other = ((val*)NULL);
-{
-var5 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 2988);
+fatal_exit(1);
 }
-var6 = !var5;
-var3 = var6;
-goto RET_LABEL4;
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AIfExpr> */
+if (var_n_expr == 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__parser_prod, 2989);
+fatal_exit(1);
+} else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 60);
+fatal_exit(1);
+}
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+RET_LABEL3:(void)0;
+}
+}
+if (unlikely(var_n_kwthen == 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__parser_prod, 2990);
+fatal_exit(1);
+}
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwthen].val = var_n_kwthen; /* _n_kwthen on <self:AIfExpr> */
+if (var_n_kwthen == 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__parser_prod, 2991);
+fatal_exit(1);
+} else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwthen,self) on <var_n_kwthen:nullable TKwthen> */
+if (unlikely(var_n_kwthen == 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__parser_nodes, 60);
+fatal_exit(1);
+}
+var_n_kwthen->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwthen:nullable TKwthen> */
 RET_LABEL4:(void)0;
 }
-var = var3;
+}
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val = var_n_then; /* _n_then on <self:AIfExpr> */
+if (var_n_then == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_then,((val*)NULL)) on <var_n_then:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var7 = ((short int(*)(val* self, val* p0))(var_n_then->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_then, var_other); /* == on <var_n_then:nullable AExpr(AExpr)>*/
+}
+var8 = !var7;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+var = var5;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
-var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
-RET_LABEL7:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_n_then,self) on <var_n_then:nullable AExpr(AExpr)> */
+var_n_then->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_then:nullable AExpr(AExpr)> */
+RET_LABEL9:(void)0;
 }
 }
 } else {
 }
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:ALoopExpr> */
-if (var_n_label == NULL) {
-var8 = 0; /* is null */
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AIfExpr> */
+if (var_n_kwelse == NULL) {
+var10 = 0; /* is null */
 } else {
-var8 = 1; /* arg is null and recv is not */
+var10 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_n_kwelse,((val*)NULL)) on <var_n_kwelse:nullable TKwelse> */
 var_other = ((val*)NULL);
 {
-var11 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
+var13 = ((short int(*)(val* self, val* p0))(var_n_kwelse->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_kwelse, var_other); /* == on <var_n_kwelse:nullable TKwelse(TKwelse)>*/
 }
-var12 = !var11;
-var9 = var12;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var14 = !var13;
+var11 = var14;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
 }
-var8 = var9;
+var10 = var11;
 }
-if (var8){
+if (var10){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
-var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
-RET_LABEL13:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse(TKwelse)> */
+var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse(TKwelse)> */
+RET_LABEL15:(void)0;
+}
+}
+} else {
+}
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val = var_n_else; /* _n_else on <self:AIfExpr> */
+if (var_n_else == NULL) {
+var16 = 0; /* is null */
+} else {
+var16 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_else,((val*)NULL)) on <var_n_else:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var19 = ((short int(*)(val* self, val* p0))(var_n_else->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_else, var_other); /* == on <var_n_else:nullable AExpr(AExpr)>*/
+}
+var20 = !var19;
+var17 = var20;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
+}
+var16 = var17;
+}
+if (var16){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_else,self) on <var_n_else:nullable AExpr(AExpr)> */
+var_n_else->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_else:nullable AExpr(AExpr)> */
+RET_LABEL21:(void)0;
 }
 }
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALoopExpr#replace_child for (self: ALoopExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AIfExpr$replace_child for (self: AIfExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AIfExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwloop */;
+val* var /* : TKwif */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -1386,37 +1318,65 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : nullable AExpr */;
+val* var7 /* : AExpr */;
 short int var8 /* : Bool */;
-short int var9 /* : Bool */;
-short int var11 /* : Bool */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
 short int var13 /* : Bool */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-const char* var_class_name17;
-val* var18 /* : nullable ALabel */;
-short int var19 /* : Bool */;
+int cltype14;
+int idtype15;
+const char* var_class_name16;
+val* var17 /* : TKwthen */;
+short int var18 /* : Bool */;
 short int var20 /* : Bool */;
 short int var22 /* : Bool */;
-short int var24 /* : Bool */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+val* var27 /* : nullable AExpr */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+const char* var_class_name37;
+val* var38 /* : nullable TKwelse */;
+short int var39 /* : Bool */;
+short int var40 /* : Bool */;
+short int var42 /* : Bool */;
+short int var44 /* : Bool */;
+short int var45 /* : Bool */;
+int cltype46;
+int idtype47;
+const char* var_class_name48;
+val* var49 /* : nullable AExpr */;
+short int var50 /* : Bool */;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+short int var55 /* : Bool */;
+short int var56 /* : Bool */;
+int cltype57;
+int idtype58;
+const char* var_class_name59;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val; /* _n_kwloop on <self:ALoopExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwif].val; /* _n_kwif on <self:AIfExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwloop");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3194);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3002);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwloop> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwif> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwloop> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwif> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -1429,9 +1389,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwloop */
-cltype = type_nitc__TKwloop.color;
-idtype = type_nitc__TKwloop.id;
+/* <var_new_child:nullable ANode> isa TKwif */
+cltype = type_nitc__TKwif.color;
+idtype = type_nitc__TKwif.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -1443,123 +1403,294 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwloop", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3195);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwif", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3003);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALoopExpr___n_kwloop_61d(self, var_new_child); /* Direct call parser_prod#ALoopExpr#n_kwloop= on <self:ALoopExpr>*/
+nitc__parser_prod___AIfExpr___n_kwif_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_kwif= on <self:AIfExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
-if (var7 == NULL) {
-var8 = 0; /* <var_old_child:ANode> cannot be null */
-} else {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:nullable AExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val; /* _n_expr on <self:AIfExpr> */
+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_prod, 3006);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:nullable AExpr(AExpr)> */
-var13 = var7 == var_other;
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
+var12 = var7 == var_other;
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-var9 = var11;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
+var8 = var10;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
-var8 = var9;
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa nullable AExpr */
-cltype15 = type_nullable__nitc__AExpr.color;
-idtype16 = type_nullable__nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype14 = type_nitc__AExpr.color;
+idtype15 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
-var14 = 1;
+var13 = 0;
 } else {
-if(cltype15 >= var_new_child->type->table_size) {
-var14 = 0;
+if(cltype14 >= var_new_child->type->table_size) {
+var13 = 0;
 } else {
-var14 = var_new_child->type->type_table[cltype15] == idtype16;
+var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 }
-if (unlikely(!var14)) {
-var_class_name17 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3199);
+if (unlikely(!var13)) {
+var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3007);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALoopExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod#ALoopExpr#n_block= on <self:ALoopExpr>*/
+nitc__parser_prod___AIfExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_expr= on <self:AIfExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var18 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ALoopExpr> */
-if (var18 == NULL) {
-var19 = 0; /* <var_old_child:ANode> cannot be null */
-} else {
-{ /* Inline kernel#Object#== (var18,var_old_child) on <var18:nullable ALabel> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var18,var_other) on <var18:nullable ALabel(ALabel)> */
-var24 = var18 == var_other;
-var22 = var24;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+var17 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwthen].val; /* _n_kwthen on <self:AIfExpr> */
+if (unlikely(var17 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3010);
+fatal_exit(1);
 }
+{
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:TKwthen> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:TKwthen> */
+var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
 RET_LABEL21:(void)0;
 }
-var19 = var20;
 }
-if (var19){
-/* <var_new_child:nullable ANode> isa nullable ALabel */
-cltype26 = type_nullable__nitc__ALabel.color;
-idtype27 = type_nullable__nitc__ALabel.id;
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
+}
+}
+if (var18){
+/* <var_new_child:nullable ANode> isa TKwthen */
+cltype24 = type_nitc__TKwthen.color;
+idtype25 = type_nitc__TKwthen.id;
 if(var_new_child == NULL) {
-var25 = 1;
+var23 = 0;
 } else {
-if(cltype26 >= var_new_child->type->table_size) {
-var25 = 0;
+if(cltype24 >= var_new_child->type->table_size) {
+var23 = 0;
 } else {
-var25 = var_new_child->type->type_table[cltype26] == idtype27;
+var23 = var_new_child->type->type_table[cltype24] == idtype25;
 }
 }
-if (unlikely(!var25)) {
-var_class_name28 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3203);
+if (unlikely(!var23)) {
+var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwthen", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3011);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod#ALoopExpr#n_label= on <self:ALoopExpr>*/
+nitc__parser_prod___AIfExpr___n_kwthen_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_kwthen= on <self:AIfExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-RET_LABEL:;
-}
-/* method parser_prod#ALoopExpr#n_kwloop= for (self: ALoopExpr, TKwloop) */
-void nitc__parser_prod___ALoopExpr___n_kwloop_61d(val* self, val* p0) {
-val* var_node /* var node: TKwloop */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val = var_node; /* _n_kwloop on <self:ALoopExpr> */
+var27 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
+if (var27 == NULL) {
+var28 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var27,var_old_child) on <var27:nullable AExpr> */
+var_other = var_old_child;
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwloop> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwloop> */
-RET_LABEL1:(void)0;
-}
-}
+{ /* Inline kernel$Object$is_same_instance (var27,var_other) on <var27:nullable AExpr(AExpr)> */
+var33 = var27 == var_other;
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
+}
+}
+var29 = var31;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
+}
+var28 = var29;
+}
+if (var28){
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype35 = type_nullable__nitc__AExpr.color;
+idtype36 = type_nullable__nitc__AExpr.id;
+if(var_new_child == NULL) {
+var34 = 1;
+} else {
+if(cltype35 >= var_new_child->type->table_size) {
+var34 = 0;
+} else {
+var34 = var_new_child->type->type_table[cltype35] == idtype36;
+}
+}
+if (unlikely(!var34)) {
+var_class_name37 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name37);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3015);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AIfExpr___n_then_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_then= on <self:AIfExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var38 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwelse].val; /* _n_kwelse on <self:AIfExpr> */
+if (var38 == NULL) {
+var39 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var38,var_old_child) on <var38:nullable TKwelse> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var38,var_other) on <var38:nullable TKwelse(TKwelse)> */
+var44 = var38 == var_other;
+var42 = var44;
+goto RET_LABEL43;
+RET_LABEL43:(void)0;
+}
+}
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
+}
+var39 = var40;
+}
+if (var39){
+/* <var_new_child:nullable ANode> isa nullable TKwelse */
+cltype46 = type_nullable__nitc__TKwelse.color;
+idtype47 = type_nullable__nitc__TKwelse.id;
+if(var_new_child == NULL) {
+var45 = 1;
+} else {
+if(cltype46 >= var_new_child->type->table_size) {
+var45 = 0;
+} else {
+var45 = var_new_child->type->type_table[cltype46] == idtype47;
+}
+}
+if (unlikely(!var45)) {
+var_class_name48 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TKwelse", var_class_name48);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3019);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AIfExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_kwelse= on <self:AIfExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var49 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
+if (var49 == NULL) {
+var50 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var49,var_old_child) on <var49:nullable AExpr> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var49,var_other) on <var49:nullable AExpr(AExpr)> */
+var55 = var49 == var_other;
+var53 = var55;
+goto RET_LABEL54;
+RET_LABEL54:(void)0;
+}
+}
+var51 = var53;
+goto RET_LABEL52;
+RET_LABEL52:(void)0;
+}
+var50 = var51;
+}
+if (var50){
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype57 = type_nullable__nitc__AExpr.color;
+idtype58 = type_nullable__nitc__AExpr.id;
+if(var_new_child == NULL) {
+var56 = 1;
+} else {
+if(cltype57 >= var_new_child->type->table_size) {
+var56 = 0;
+} else {
+var56 = var_new_child->type->type_table[cltype57] == idtype58;
+}
+}
+if (unlikely(!var56)) {
+var_class_name59 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name59);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3023);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AIfExpr___n_else_61d(self, var_new_child); /* Direct call parser_prod$AIfExpr$n_else= on <self:AIfExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
 RET_LABEL:;
 }
-/* method parser_prod#ALoopExpr#n_block= for (self: ALoopExpr, nullable AExpr) */
-void nitc__parser_prod___ALoopExpr___n_block_61d(val* self, val* p0) {
+/* method parser_prod$AIfExpr$n_kwif= for (self: AIfExpr, TKwif) */
+void nitc__parser_prod___AIfExpr___n_kwif_61d(val* self, val* p0) {
+val* var_node /* var node: TKwif */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwif].val = var_node; /* _n_kwif on <self:AIfExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwif> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwif> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfExpr$n_expr= for (self: AIfExpr, AExpr) */
+void nitc__parser_prod___AIfExpr___n_expr_61d(val* self, val* p0) {
+val* var_node /* var node: AExpr */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val = var_node; /* _n_expr on <self:AIfExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfExpr$n_kwthen= for (self: AIfExpr, TKwthen) */
+void nitc__parser_prod___AIfExpr___n_kwthen_61d(val* self, val* p0) {
+val* var_node /* var node: TKwthen */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwthen].val = var_node; /* _n_kwthen on <self:AIfExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwthen> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwthen> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfExpr$n_then= for (self: AIfExpr, nullable AExpr) */
+void nitc__parser_prod___AIfExpr___n_then_61d(val* self, val* p0) {
 val* var_node /* var node: nullable AExpr */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -1567,14 +1698,14 @@ val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val = var_node; /* _n_block on <self:ALoopExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val = var_node; /* _n_then on <self:AIfExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
 var_other = ((val*)NULL);
 {
 var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
@@ -1588,7 +1719,7 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
 RET_LABEL5:(void)0;
 }
@@ -1597,26 +1728,26 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALoopExpr#n_label= for (self: ALoopExpr, nullable ALabel) */
-void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
-val* var_node /* var node: nullable ALabel */;
+/* method parser_prod$AIfExpr$n_kwelse= for (self: AIfExpr, nullable TKwelse) */
+void nitc__parser_prod___AIfExpr___n_kwelse_61d(val* self, val* p0) {
+val* var_node /* var node: nullable TKwelse */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:ALoopExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AIfExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable TKwelse> */
 var_other = ((val*)NULL);
 {
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TKwelse(TKwelse)>*/
 }
 var4 = !var3;
 var1 = var4;
@@ -1627,8 +1758,8 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable TKwelse(TKwelse)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TKwelse(TKwelse)> */
 RET_LABEL5:(void)0;
 }
 }
@@ -1636,180 +1767,311 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALoopExpr#visit_all for (self: ALoopExpr, Visitor) */
-void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AIfExpr$n_else= for (self: AIfExpr, nullable AExpr) */
+void nitc__parser_prod___AIfExpr___n_else_61d(val* self, val* p0) {
+val* var_node /* var node: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val = var_node; /* _n_else on <self:AIfExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
+}
+}
+} else {
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfExpr$visit_all for (self: AIfExpr, Visitor) */
+void nitc__parser_prod___AIfExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : TKwloop */;
-val* var1 /* : nullable AExpr */;
-val* var2 /* : nullable ALabel */;
+val* var /* : TKwif */;
+val* var1 /* : AExpr */;
+val* var2 /* : TKwthen */;
+val* var3 /* : nullable AExpr */;
+val* var4 /* : nullable TKwelse */;
+val* var5 /* : nullable AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val; /* _n_kwloop on <self:ALoopExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwif].val; /* _n_kwif on <self:AIfExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwloop");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3227);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3062);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var1 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_expr].val; /* _n_expr on <self:AIfExpr> */
+if (unlikely(var1 == 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_prod, 3063);
+fatal_exit(1);
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ALoopExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwthen].val; /* _n_kwthen on <self:AIfExpr> */
+if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3064);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var3 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_then].val; /* _n_then on <self:AIfExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var4 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_kwelse].val; /* _n_kwelse on <self:AIfExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var5 = self->attrs[COLOR_nitc__parser_nodes__AIfExpr___n_else].val; /* _n_else on <self:AIfExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AForExpr#init_aforexpr for (self: AForExpr, nullable TKwfor, Collection[Object], nullable TKwdo, nullable AExpr, nullable ALabel) */
-void nitc__parser_prod___AForExpr___init_aforexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
-val* var_n_kwfor /* var n_kwfor: nullable TKwfor */;
-val* var_n_groups /* var n_groups: Collection[Object] */;
-val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
-val* var_n_block /* var n_block: nullable AExpr */;
-val* var_n_label /* var n_label: nullable ALabel */;
-val* var /* : ANodes[AForGroup] */;
-val* var4 /* : ANodes[AForGroup] */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
+/* method parser_prod$AIfexprExpr$init_aifexprexpr for (self: AIfexprExpr, nullable TKwif, nullable AExpr, nullable TKwthen, nullable AExpr, nullable TKwelse, nullable AExpr) */
+void nitc__parser_prod___AIfexprExpr___init_aifexprexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4, val* p5) {
+val* var_n_kwif /* var n_kwif: nullable TKwif */;
+val* var_n_expr /* var n_expr: nullable AExpr */;
+val* var_n_kwthen /* var n_kwthen: nullable TKwthen */;
+val* var_n_then /* var n_then: nullable AExpr */;
+val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
+val* var_n_else /* var n_else: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AForExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AIfexprExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwfor = p0;
-var_n_groups = p1;
-var_n_kwdo = p2;
-var_n_block = p3;
-var_n_label = p4;
-if (unlikely(var_n_kwfor == NULL)) {
+var_n_kwif = p0;
+var_n_expr = p1;
+var_n_kwthen = p2;
+var_n_then = p3;
+var_n_kwelse = p4;
+var_n_else = p5;
+if (unlikely(var_n_kwif == 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__parser_prod, 3241);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3080);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val = var_n_kwfor; /* _n_kwfor on <self:AForExpr> */
-if (var_n_kwfor == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val = var_n_kwif; /* _n_kwif on <self:AIfexprExpr> */
+if (var_n_kwif == 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__parser_prod, 3242);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3081);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwfor,self) on <var_n_kwfor:nullable TKwfor> */
-if (unlikely(var_n_kwfor == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwif,self) on <var_n_kwif:nullable TKwif> */
+if (unlikely(var_n_kwif == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwfor->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwfor:nullable TKwfor> */
+var_n_kwif->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwif:nullable TKwif> */
 RET_LABEL2:(void)0;
 }
 }
-{
-{ /* Inline parser_nodes#AForExpr#n_groups (self) on <self:AForExpr> */
-var4 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1920);
+if (unlikely(var_n_expr == 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__parser_prod, 3082);
 fatal_exit(1);
 }
-var = var4;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AIfexprExpr> */
+if (var_n_expr == 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__parser_prod, 3083);
+fatal_exit(1);
+} else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 60);
+fatal_exit(1);
+}
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
 RET_LABEL3:(void)0;
 }
 }
-{
-nitc___nitc__ANodes___unsafe_add_all(var, var_n_groups); /* Direct call parser_nodes#ANodes#unsafe_add_all on <var:ANodes[AForGroup]>*/
+if (unlikely(var_n_kwthen == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(var_n_kwdo == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3244);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3084);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AForExpr> */
-if (var_n_kwdo == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val = var_n_kwthen; /* _n_kwthen on <self:AIfexprExpr> */
+if (var_n_kwthen == 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__parser_prod, 3245);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3085);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
-if (unlikely(var_n_kwdo == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwthen,self) on <var_n_kwthen:nullable TKwthen> */
+if (unlikely(var_n_kwthen == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
-RET_LABEL5:(void)0;
+var_n_kwthen->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwthen:nullable TKwthen> */
+RET_LABEL4:(void)0;
 }
 }
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val = var_n_block; /* _n_block on <self:AForExpr> */
-if (var_n_block == NULL) {
-var6 = 0; /* is null */
+if (unlikely(var_n_then == 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__parser_prod, 3086);
+fatal_exit(1);
+}
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val = var_n_then; /* _n_then on <self:AIfexprExpr> */
+if (var_n_then == 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__parser_prod, 3087);
+fatal_exit(1);
 } else {
-var6 = 1; /* arg is null and recv is not */
+{ /* Inline parser_nodes$ANode$parent= (var_n_then,self) on <var_n_then:nullable AExpr> */
+if (unlikely(var_n_then == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
-var_other = ((val*)NULL);
-{
-var9 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
+fatal_exit(1);
 }
-var10 = !var9;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var_n_then->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_then:nullable AExpr> */
+RET_LABEL5:(void)0;
 }
-var6 = var7;
 }
-if (var6){
-{
-{ /* Inline parser_nodes#ANode#parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
-var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
-RET_LABEL11:(void)0;
+if (unlikely(var_n_kwelse == 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__parser_prod, 3088);
+fatal_exit(1);
 }
-} else {
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AIfexprExpr> */
+if (var_n_kwelse == NULL) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AForExpr> */
-if (var_n_label == NULL) {
-var12 = 0; /* is null */
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3089);
+fatal_exit(1);
 } else {
-var12 = 1; /* arg is null and recv is not */
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse> */
+if (unlikely(var_n_kwelse == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
-var_other = ((val*)NULL);
-{
-var15 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
+fatal_exit(1);
 }
-var16 = !var15;
-var13 = var16;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
+var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse> */
+RET_LABEL6:(void)0;
 }
-var12 = var13;
 }
-if (var12){
-{
-{ /* Inline parser_nodes#ANode#parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
-var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
-RET_LABEL17:(void)0;
+if (unlikely(var_n_else == 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__parser_prod, 3090);
+fatal_exit(1);
 }
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val = var_n_else; /* _n_else on <self:AIfexprExpr> */
+if (var_n_else == 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__parser_prod, 3091);
+fatal_exit(1);
 } else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_else,self) on <var_n_else:nullable AExpr> */
+if (unlikely(var_n_else == 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__parser_nodes, 60);
+fatal_exit(1);
+}
+var_n_else->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_else:nullable AExpr> */
+RET_LABEL7:(void)0;
+}
 }
 RET_LABEL:;
 }
-/* method parser_prod#AForExpr#replace_child for (self: AForExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AForExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AIfexprExpr$replace_child for (self: AIfexprExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AIfexprExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwfor */;
+val* var /* : TKwif */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -1818,48 +2080,62 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : ANodes[AForGroup] */;
-val* var9 /* : ANodes[AForGroup] */;
+val* var7 /* : AExpr */;
+short int var8 /* : Bool */;
 short int var10 /* : Bool */;
-val* var11 /* : TKwdo */;
 short int var12 /* : Bool */;
-short int var14 /* : Bool */;
-short int var16 /* : Bool */;
-short int var17 /* : Bool */;
-int cltype18;
-int idtype19;
-const char* var_class_name20;
-val* var21 /* : nullable AExpr */;
+short int var13 /* : Bool */;
+int cltype14;
+int idtype15;
+const char* var_class_name16;
+val* var17 /* : TKwthen */;
+short int var18 /* : Bool */;
+short int var20 /* : Bool */;
 short int var22 /* : Bool */;
 short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+val* var27 /* : AExpr */;
 short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-const char* var_class_name31;
-val* var32 /* : nullable ALabel */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
 short int var33 /* : Bool */;
-short int var34 /* : Bool */;
-short int var36 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+val* var37 /* : TKwelse */;
 short int var38 /* : Bool */;
-short int var39 /* : Bool */;
-int cltype40;
-int idtype41;
-const char* var_class_name42;
+short int var40 /* : Bool */;
+short int var42 /* : Bool */;
+short int var43 /* : Bool */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+val* var47 /* : AExpr */;
+short int var48 /* : Bool */;
+short int var50 /* : Bool */;
+short int var52 /* : Bool */;
+short int var53 /* : Bool */;
+int cltype54;
+int idtype55;
+const char* var_class_name56;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val; /* _n_kwfor on <self:AForExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val; /* _n_kwif on <self:AIfexprExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwfor");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3254);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3096);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwfor> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwif> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwfor> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwif> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -1872,9 +2148,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwfor */
-cltype = type_nitc__TKwfor.color;
-idtype = type_nitc__TKwfor.id;
+/* <var_new_child:nullable ANode> isa TKwif */
+cltype = type_nitc__TKwif.color;
+idtype = type_nitc__TKwif.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -1886,334 +2162,433 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwfor", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3255);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwif", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3097);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AForExpr___n_kwfor_61d(self, var_new_child); /* Direct call parser_prod#AForExpr#n_kwfor= on <self:AForExpr>*/
+nitc__parser_prod___AIfexprExpr___n_kwif_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_kwif= on <self:AIfexprExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-{
-{ /* Inline parser_nodes#AForExpr#n_groups (self) on <self:AForExpr> */
-var9 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
-if (unlikely(var9 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1920);
-fatal_exit(1);
-}
-var7 = var9;
-RET_LABEL8:(void)0;
-}
-}
-{
-var10 = nitc___nitc__ANodes___replace_child(var7, var_old_child, var_new_child);
-}
-if (var10){
-goto RET_LABEL;
-} else {
+var7 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
+if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var11 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val; /* _n_kwdo on <self:AForExpr> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3259);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3100);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var11,var_old_child) on <var11:TKwdo> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var11,var_other) on <var11:TKwdo> */
-var16 = var11 == var_other;
-var14 = var16;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
+var12 = var7 == var_other;
+var10 = var12;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-var12 = var14;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+var8 = var10;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
-if (var12){
-/* <var_new_child:nullable ANode> isa TKwdo */
-cltype18 = type_nitc__TKwdo.color;
-idtype19 = type_nitc__TKwdo.id;
+if (var8){
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype14 = type_nitc__AExpr.color;
+idtype15 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
-var17 = 0;
+var13 = 0;
 } else {
-if(cltype18 >= var_new_child->type->table_size) {
-var17 = 0;
+if(cltype14 >= var_new_child->type->table_size) {
+var13 = 0;
 } else {
-var17 = var_new_child->type->type_table[cltype18] == idtype19;
+var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 }
-if (unlikely(!var17)) {
-var_class_name20 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3260);
+if (unlikely(!var13)) {
+var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3101);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AForExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod#AForExpr#n_kwdo= on <self:AForExpr>*/
+nitc__parser_prod___AIfexprExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_expr= on <self:AIfexprExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var21 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
-if (var21 == NULL) {
-var22 = 0; /* <var_old_child:ANode> cannot be null */
-} else {
-{ /* Inline kernel#Object#== (var21,var_old_child) on <var21:nullable AExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val; /* _n_kwthen on <self:AIfexprExpr> */
+if (unlikely(var17 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwthen");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3104);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:TKwthen> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var21,var_other) on <var21:nullable AExpr(AExpr)> */
-var27 = var21 == var_other;
-var25 = var27;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:TKwthen> */
+var22 = var17 == var_other;
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
 }
-var23 = var25;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
 }
-var22 = var23;
 }
-if (var22){
-/* <var_new_child:nullable ANode> isa nullable AExpr */
-cltype29 = type_nullable__nitc__AExpr.color;
-idtype30 = type_nullable__nitc__AExpr.id;
+if (var18){
+/* <var_new_child:nullable ANode> isa TKwthen */
+cltype24 = type_nitc__TKwthen.color;
+idtype25 = type_nitc__TKwthen.id;
 if(var_new_child == NULL) {
-var28 = 1;
+var23 = 0;
 } else {
-if(cltype29 >= var_new_child->type->table_size) {
-var28 = 0;
+if(cltype24 >= var_new_child->type->table_size) {
+var23 = 0;
 } else {
-var28 = var_new_child->type->type_table[cltype29] == idtype30;
+var23 = var_new_child->type->type_table[cltype24] == idtype25;
 }
 }
-if (unlikely(!var28)) {
-var_class_name31 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name31);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3264);
+if (unlikely(!var23)) {
+var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwthen", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3105);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AForExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod#AForExpr#n_block= on <self:AForExpr>*/
+nitc__parser_prod___AIfexprExpr___n_kwthen_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_kwthen= on <self:AIfexprExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var32 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AForExpr> */
-if (var32 == NULL) {
-var33 = 0; /* <var_old_child:ANode> cannot be null */
-} else {
-{ /* Inline kernel#Object#== (var32,var_old_child) on <var32:nullable ALabel> */
+var27 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
+if (unlikely(var27 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3108);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var27,var_old_child) on <var27:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var32,var_other) on <var32:nullable ALabel(ALabel)> */
-var38 = var32 == var_other;
-var36 = var38;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var27,var_other) on <var27:AExpr> */
+var32 = var27 == var_other;
+var30 = var32;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
 }
 }
-var34 = var36;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
-var33 = var34;
 }
-if (var33){
-/* <var_new_child:nullable ANode> isa nullable ALabel */
-cltype40 = type_nullable__nitc__ALabel.color;
-idtype41 = type_nullable__nitc__ALabel.id;
+if (var28){
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype34 = type_nitc__AExpr.color;
+idtype35 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
-var39 = 1;
+var33 = 0;
 } else {
-if(cltype40 >= var_new_child->type->table_size) {
-var39 = 0;
+if(cltype34 >= var_new_child->type->table_size) {
+var33 = 0;
 } else {
-var39 = var_new_child->type->type_table[cltype40] == idtype41;
+var33 = var_new_child->type->type_table[cltype34] == idtype35;
 }
 }
-if (unlikely(!var39)) {
-var_class_name42 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name42);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3268);
+if (unlikely(!var33)) {
+var_class_name36 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3109);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AForExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod#AForExpr#n_label= on <self:AForExpr>*/
+nitc__parser_prod___AIfexprExpr___n_then_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_then= on <self:AIfexprExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-RET_LABEL:;
-}
-/* method parser_prod#AForExpr#n_kwfor= for (self: AForExpr, TKwfor) */
-void nitc__parser_prod___AForExpr___n_kwfor_61d(val* self, val* p0) {
-val* var_node /* var node: TKwfor */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val = var_node; /* _n_kwfor on <self:AForExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwfor> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwfor> */
-RET_LABEL1:(void)0;
-}
+var37 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val; /* _n_kwelse on <self:AIfexprExpr> */
+if (unlikely(var37 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-RET_LABEL:;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3112);
+fatal_exit(1);
 }
-/* method parser_prod#AForExpr#n_kwdo= for (self: AForExpr, TKwdo) */
-void nitc__parser_prod___AForExpr___n_kwdo_61d(val* self, val* p0) {
-val* var_node /* var node: TKwdo */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AForExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwdo> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Object$== (var37,var_old_child) on <var37:TKwelse> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var37,var_other) on <var37:TKwelse> */
+var42 = var37 == var_other;
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
 }
-RET_LABEL:;
+var38 = var40;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
-/* method parser_prod#AForExpr#n_block= for (self: AForExpr, nullable AExpr) */
-void nitc__parser_prod___AForExpr___n_block_61d(val* self, val* p0) {
-val* var_node /* var node: nullable AExpr */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val = var_node; /* _n_block on <self:AForExpr> */
-if (var_node == NULL) {
-var = 0; /* is null */
-} else {
-var = 1; /* arg is null and recv is not */
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
-var_other = ((val*)NULL);
-{
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+if (var38){
+/* <var_new_child:nullable ANode> isa TKwelse */
+cltype44 = type_nitc__TKwelse.color;
+idtype45 = type_nitc__TKwelse.id;
+if(var_new_child == NULL) {
+var43 = 0;
+} else {
+if(cltype44 >= var_new_child->type->table_size) {
+var43 = 0;
+} else {
+var43 = var_new_child->type->type_table[cltype44] == idtype45;
 }
-var4 = !var3;
-var1 = var4;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
 }
-var = var1;
+if (unlikely(!var43)) {
+var_class_name46 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwelse", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3113);
+fatal_exit(1);
 }
-if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
-RET_LABEL5:(void)0;
-}
+nitc__parser_prod___AIfexprExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_kwelse= on <self:AIfexprExpr>*/
 }
+goto RET_LABEL;
 } else {
 }
-RET_LABEL:;
+var47 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
+if (unlikely(var47 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method parser_prod#AForExpr#n_label= for (self: AForExpr, nullable ALabel) */
-void nitc__parser_prod___AForExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
-val* var_node /* var node: nullable ALabel */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AForExpr> */
-if (var_node == NULL) {
-var = 0; /* is null */
-} else {
-var = 1; /* arg is null and recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_else");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3116);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
-var_other = ((val*)NULL);
 {
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
-}
-var4 = !var3;
-var1 = var4;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
+{ /* Inline kernel$Object$== (var47,var_old_child) on <var47:AExpr> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var47,var_other) on <var47:AExpr> */
+var52 = var47 == var_other;
+var50 = var52;
+goto RET_LABEL51;
+RET_LABEL51:(void)0;
 }
-var = var1;
 }
-if (var){
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
-RET_LABEL5:(void)0;
+var48 = var50;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
+if (var48){
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype54 = type_nitc__AExpr.color;
+idtype55 = type_nitc__AExpr.id;
+if(var_new_child == NULL) {
+var53 = 0;
+} else {
+if(cltype54 >= var_new_child->type->table_size) {
+var53 = 0;
 } else {
+var53 = var_new_child->type->type_table[cltype54] == idtype55;
 }
-RET_LABEL:;
 }
-/* method parser_prod#AForExpr#visit_all for (self: AForExpr, Visitor) */
-void nitc__parser_prod___AForExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwfor */;
-val* var1 /* : ANodes[AForGroup] */;
-val* var3 /* : ANodes[AForGroup] */;
-val* var4 /* : TKwdo */;
-val* var5 /* : nullable AExpr */;
-val* var6 /* : nullable ALabel */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val; /* _n_kwfor on <self:AForExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwfor");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3297);
+if (unlikely(!var53)) {
+var_class_name56 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name56);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3117);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-{
-{ /* 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)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 1920);
-fatal_exit(1);
+nitc__parser_prod___AIfexprExpr___n_else_61d(self, var_new_child); /* Direct call parser_prod$AIfexprExpr$n_else= on <self:AIfexprExpr>*/
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+goto RET_LABEL;
+} else {
 }
+RET_LABEL:;
 }
+/* method parser_prod$AIfexprExpr$n_kwif= for (self: AIfexprExpr, TKwif) */
+void nitc__parser_prod___AIfexprExpr___n_kwif_61d(val* self, val* p0) {
+val* var_node /* var node: TKwif */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val = var_node; /* _n_kwif on <self:AIfexprExpr> */
 {
-nitc___nitc__ANodes___visit_all(var1, var_v); /* Direct call parser_nodes#ANodes#visit_all on <var1:ANodes[AForGroup]>*/
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwif> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwif> */
+RET_LABEL1:(void)0;
 }
-var4 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val; /* _n_kwdo on <self:AForExpr> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3299);
-fatal_exit(1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+RET_LABEL:;
 }
-var5 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+/* method parser_prod$AIfexprExpr$n_expr= for (self: AIfexprExpr, AExpr) */
+void nitc__parser_prod___AIfexprExpr___n_expr_61d(val* self, val* p0) {
+val* var_node /* var node: AExpr */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val = var_node; /* _n_expr on <self:AIfexprExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
+RET_LABEL1:(void)0;
 }
-var6 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AForExpr> */
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfexprExpr$n_kwthen= for (self: AIfexprExpr, TKwthen) */
+void nitc__parser_prod___AIfexprExpr___n_kwthen_61d(val* self, val* p0) {
+val* var_node /* var node: TKwthen */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val = var_node; /* _n_kwthen on <self:AIfexprExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var6); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwthen> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwthen> */
+RET_LABEL1:(void)0;
+}
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#init_awithexpr for (self: AWithExpr, nullable TKwwith, nullable AExpr, nullable TKwdo, nullable AExpr, nullable ALabel) */
-void nitc__parser_prod___AWithExpr___init_awithexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
-val* var_n_kwwith /* var n_kwwith: nullable TKwwith */;
+/* method parser_prod$AIfexprExpr$n_then= for (self: AIfexprExpr, AExpr) */
+void nitc__parser_prod___AIfexprExpr___n_then_61d(val* self, val* p0) {
+val* var_node /* var node: AExpr */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val = var_node; /* _n_then on <self:AIfexprExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfexprExpr$n_kwelse= for (self: AIfexprExpr, TKwelse) */
+void nitc__parser_prod___AIfexprExpr___n_kwelse_61d(val* self, val* p0) {
+val* var_node /* var node: TKwelse */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AIfexprExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwelse> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwelse> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfexprExpr$n_else= for (self: AIfexprExpr, AExpr) */
+void nitc__parser_prod___AIfexprExpr___n_else_61d(val* self, val* p0) {
+val* var_node /* var node: AExpr */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val = var_node; /* _n_else on <self:AIfexprExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AIfexprExpr$visit_all for (self: AIfexprExpr, Visitor) */
+void nitc__parser_prod___AIfexprExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+val* var_v /* var v: Visitor */;
+val* var /* : TKwif */;
+val* var1 /* : AExpr */;
+val* var2 /* : TKwthen */;
+val* var3 /* : AExpr */;
+val* var4 /* : TKwelse */;
+val* var5 /* : AExpr */;
+var_v = p0;
+var = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwif].val; /* _n_kwif on <self:AIfexprExpr> */
+if (unlikely(var == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwif");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3156);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var1 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_expr].val; /* _n_expr on <self:AIfexprExpr> */
+if (unlikely(var1 == 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_prod, 3157);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var2 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwthen].val; /* _n_kwthen 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_kwthen");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3158);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var3 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_then].val; /* _n_then on <self:AIfexprExpr> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_then");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3159);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var4 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_kwelse].val; /* _n_kwelse on <self:AIfexprExpr> */
+if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3160);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var5 = self->attrs[COLOR_nitc__parser_nodes__AIfexprExpr___n_else].val; /* _n_else on <self:AIfexprExpr> */
+if (unlikely(var5 == 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_prod, 3161);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+RET_LABEL:;
+}
+/* method parser_prod$AWhileExpr$init_awhileexpr for (self: AWhileExpr, nullable TKwwhile, nullable AExpr, nullable TKwdo, nullable AExpr, nullable ALabel) */
+void nitc__parser_prod___AWhileExpr___init_awhileexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
+val* var_n_kwwhile /* var n_kwwhile: nullable TKwwhile */;
 val* var_n_expr /* var n_expr: nullable AExpr */;
 val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
 val* var_n_block /* var n_block: nullable AExpr */;
@@ -2228,51 +2603,69 @@ short int var11 /* : Bool */;
 short int var13 /* : Bool */;
 short int var14 /* : Bool */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AWithExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AWhileExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwwith = p0;
+var_n_kwwhile = p0;
 var_n_expr = p1;
 var_n_kwdo = p2;
 var_n_block = p3;
 var_n_label = p4;
-if (unlikely(var_n_kwwith == NULL)) {
+if (unlikely(var_n_kwwhile == 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__parser_prod, 3313);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3173);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val = var_n_kwwith; /* _n_kwwith on <self:AWithExpr> */
-if (var_n_kwwith == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val = var_n_kwwhile; /* _n_kwwhile on <self:AWhileExpr> */
+if (var_n_kwwhile == 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__parser_prod, 3314);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3174);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwwith,self) on <var_n_kwwith:nullable TKwwith> */
-if (unlikely(var_n_kwwith == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwwhile,self) on <var_n_kwwhile:nullable TKwwhile> */
+if (unlikely(var_n_kwwhile == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwwith->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwwith:nullable TKwwith> */
+var_n_kwwhile->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwwhile:nullable TKwwhile> */
 RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_expr == 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__parser_prod, 3315);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3175);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AWhileExpr> */
 if (var_n_expr == 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__parser_prod, 3316);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3176);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -2280,34 +2673,43 @@ RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_kwdo == 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__parser_prod, 3317);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3177);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AWhileExpr> */
 if (var_n_kwdo == 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__parser_prod, 3318);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3178);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
 if (unlikely(var_n_kwdo == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
 RET_LABEL4:(void)0;
 }
 }
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val = var_n_block; /* _n_block on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val = var_n_block; /* _n_block on <self:AWhileExpr> */
 if (var_n_block == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
 var_other = ((val*)NULL);
 {
 var7 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
@@ -2321,21 +2723,21 @@ var = var5;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
 var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
 RET_LABEL9:(void)0;
 }
 }
 } else {
 }
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AWhileExpr> */
 if (var_n_label == NULL) {
 var10 = 0; /* is null */
 } else {
 var10 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
 var_other = ((val*)NULL);
 {
 var13 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
@@ -2349,7 +2751,7 @@ var10 = var11;
 }
 if (var10){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
 var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
 RET_LABEL15:(void)0;
 }
@@ -2358,11 +2760,11 @@ RET_LABEL15:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#replace_child for (self: AWithExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AWhileExpr$replace_child for (self: AWhileExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwwith */;
+val* var /* : TKwwhile */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -2407,17 +2809,20 @@ int idtype47;
 const char* var_class_name48;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val; /* _n_kwwith on <self:AWithExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val; /* _n_kwwhile on <self:AWhileExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwith");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3327);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwhile");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3187);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwwith> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwwhile> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwwith> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwwhile> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -2430,9 +2835,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwwith */
-cltype = type_nitc__TKwwith.color;
-idtype = type_nitc__TKwwith.id;
+/* <var_new_child:nullable ANode> isa TKwwhile */
+cltype = type_nitc__TKwwhile.color;
+idtype = type_nitc__TKwwhile.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -2444,27 +2849,30 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwwith", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3328);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwwhile", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3188);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWithExpr___n_kwwith_61d(self, var_new_child); /* Direct call parser_prod#AWithExpr#n_kwwith= on <self:AWithExpr>*/
+nitc__parser_prod___AWhileExpr___n_kwwhile_61d(self, var_new_child); /* Direct call parser_prod$AWhileExpr$n_kwwhile= on <self:AWhileExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
 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_prod, 3331);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3191);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:AExpr> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -2492,26 +2900,29 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3332);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3192);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWithExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AWithExpr#n_expr= on <self:AWithExpr>*/
+nitc__parser_prod___AWhileExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AWhileExpr$n_expr= on <self:AWhileExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val; /* _n_kwdo on <self:AWithExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val; /* _n_kwdo on <self:AWhileExpr> */
 if (unlikely(var17 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3335);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3195);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:TKwdo> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:TKwdo> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:TKwdo> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:TKwdo> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -2539,23 +2950,23 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3336);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3196);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWithExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod#AWithExpr#n_kwdo= on <self:AWithExpr>*/
+nitc__parser_prod___AWhileExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod$AWhileExpr$n_kwdo= on <self:AWhileExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var27 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+var27 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
 if (var27 == NULL) {
 var28 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var27,var_old_child) on <var27:nullable AExpr> */
+{ /* Inline kernel$Object$== (var27,var_old_child) on <var27:nullable AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var27,var_other) on <var27:nullable AExpr(AExpr)> */
+{ /* Inline kernel$Object$is_same_instance (var27,var_other) on <var27:nullable AExpr(AExpr)> */
 var33 = var27 == var_other;
 var31 = var33;
 goto RET_LABEL32;
@@ -2584,23 +2995,23 @@ var34 = var_new_child->type->type_table[cltype35] == idtype36;
 if (unlikely(!var34)) {
 var_class_name37 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3340);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3200);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWithExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod#AWithExpr#n_block= on <self:AWithExpr>*/
+nitc__parser_prod___AWhileExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod$AWhileExpr$n_block= on <self:AWhileExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var38 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWithExpr> */
+var38 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWhileExpr> */
 if (var38 == NULL) {
 var39 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var38,var_old_child) on <var38:nullable ALabel> */
+{ /* Inline kernel$Object$== (var38,var_old_child) on <var38:nullable ALabel> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var38,var_other) on <var38:nullable ALabel(ALabel)> */
+{ /* Inline kernel$Object$is_same_instance (var38,var_other) on <var38:nullable ALabel(ALabel)> */
 var44 = var38 == var_other;
 var42 = var44;
 goto RET_LABEL43;
@@ -2629,58 +3040,58 @@ var45 = var_new_child->type->type_table[cltype46] == idtype47;
 if (unlikely(!var45)) {
 var_class_name48 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3344);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3204);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AWithExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod#AWithExpr#n_label= on <self:AWithExpr>*/
+nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$AWhileExpr$n_label= on <self:AWhileExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#n_kwwith= for (self: AWithExpr, TKwwith) */
-void nitc__parser_prod___AWithExpr___n_kwwith_61d(val* self, val* p0) {
-val* var_node /* var node: TKwwith */;
+/* method parser_prod$AWhileExpr$n_kwwhile= for (self: AWhileExpr, TKwwhile) */
+void nitc__parser_prod___AWhileExpr___n_kwwhile_61d(val* self, val* p0) {
+val* var_node /* var node: TKwwhile */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val = var_node; /* _n_kwwith on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val = var_node; /* _n_kwwhile on <self:AWhileExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwwith> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwwith> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwwhile> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwwhile> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#n_expr= for (self: AWithExpr, AExpr) */
-void nitc__parser_prod___AWithExpr___n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AWhileExpr$n_expr= for (self: AWhileExpr, AExpr) */
+void nitc__parser_prod___AWhileExpr___n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val = var_node; /* _n_expr on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val = var_node; /* _n_expr on <self:AWhileExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#n_kwdo= for (self: AWithExpr, TKwdo) */
-void nitc__parser_prod___AWithExpr___n_kwdo_61d(val* self, val* p0) {
+/* method parser_prod$AWhileExpr$n_kwdo= for (self: AWhileExpr, TKwdo) */
+void nitc__parser_prod___AWhileExpr___n_kwdo_61d(val* self, val* p0) {
 val* var_node /* var node: TKwdo */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AWhileExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwdo> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwdo> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#n_block= for (self: AWithExpr, nullable AExpr) */
-void nitc__parser_prod___AWithExpr___n_block_61d(val* self, val* p0) {
+/* method parser_prod$AWhileExpr$n_block= for (self: AWhileExpr, nullable AExpr) */
+void nitc__parser_prod___AWhileExpr___n_block_61d(val* self, val* p0) {
 val* var_node /* var node: nullable AExpr */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -2688,14 +3099,14 @@ val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val = var_node; /* _n_block on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val = var_node; /* _n_block on <self:AWhileExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
 var_other = ((val*)NULL);
 {
 var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
@@ -2709,7 +3120,7 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
 RET_LABEL5:(void)0;
 }
@@ -2718,8 +3129,8 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#n_label= for (self: AWithExpr, nullable ALabel) */
-void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+/* method parser_prod$AWhileExpr$n_label= for (self: AWhileExpr, nullable ALabel) */
+void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
 val* var_node /* var node: nullable ALabel */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
@@ -2727,14 +3138,14 @@ val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AWithExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AWhileExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
 var_other = ((val*)NULL);
 {
 var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
@@ -2748,7 +3159,7 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
 RET_LABEL5:(void)0;
 }
@@ -2757,114 +3168,124 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AWithExpr#visit_all for (self: AWithExpr, Visitor) */
-void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AWhileExpr$visit_all for (self: AWhileExpr, Visitor) */
+void nitc__parser_prod___AWhileExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : TKwwith */;
+val* var /* : TKwwhile */;
 val* var1 /* : AExpr */;
 val* var2 /* : TKwdo */;
 val* var3 /* : nullable AExpr */;
 val* var4 /* : nullable ALabel */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val; /* _n_kwwith on <self:AWithExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwwhile].val; /* _n_kwwhile on <self:AWhileExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwith");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3378);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwhile");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3238);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_expr].val; /* _n_expr on <self:AWhileExpr> */
 if (unlikely(var1 == 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_prod, 3379);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3239);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val; /* _n_kwdo on <self:AWithExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_kwdo].val; /* _n_kwdo on <self:AWhileExpr> */
 if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3380);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3240);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var3 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+var3 = self->attrs[COLOR_nitc__parser_nodes__AWhileExpr___n_block].val; /* _n_block on <self:AWhileExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var4 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWithExpr> */
+var4 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWhileExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AAssertExpr#init_aassertexpr for (self: AAssertExpr, nullable TKwassert, nullable TId, nullable AExpr, nullable TKwelse, nullable AExpr) */
-void nitc__parser_prod___AAssertExpr___init_aassertexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
-val* var_n_kwassert /* var n_kwassert: nullable TKwassert */;
-val* var_n_id /* var n_id: nullable TId */;
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
-val* var_n_else /* var n_else: nullable AExpr */;
+/* method parser_prod$ALoopExpr$init_aloopexpr for (self: ALoopExpr, nullable TKwloop, nullable AExpr, nullable ALabel) */
+void nitc__parser_prod___ALoopExpr___init_aloopexpr(val* self, val* p0, val* p1, val* p2) {
+val* var_n_kwloop /* var n_kwloop: nullable TKwloop */;
+val* var_n_block /* var n_block: nullable AExpr */;
+val* var_n_label /* var n_label: nullable ALabel */;
 short int var /* : Bool */;
 short int var3 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var5 /* : Bool */;
 short int var6 /* : Bool */;
+short int var8 /* : Bool */;
 short int var9 /* : Bool */;
-short int var10 /* : Bool */;
+short int var11 /* : Bool */;
 short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-short int var19 /* : Bool */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AAssertExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ALoopExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwassert = p0;
-var_n_id = p1;
-var_n_expr = p2;
-var_n_kwelse = p3;
-var_n_else = p4;
-if (unlikely(var_n_kwassert == NULL)) {
+var_n_kwloop = p0;
+var_n_block = p1;
+var_n_label = p2;
+if (unlikely(var_n_kwloop == 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__parser_prod, 3394);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3252);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val = var_n_kwassert; /* _n_kwassert on <self:AAssertExpr> */
-if (var_n_kwassert == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val = var_n_kwloop; /* _n_kwloop on <self:ALoopExpr> */
+if (var_n_kwloop == 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__parser_prod, 3395);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3253);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwassert,self) on <var_n_kwassert:nullable TKwassert> */
-if (unlikely(var_n_kwassert == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwloop,self) on <var_n_kwloop:nullable TKwloop> */
+if (unlikely(var_n_kwloop == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwassert->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwassert:nullable TKwassert> */
+var_n_kwloop->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwloop:nullable TKwloop> */
 RET_LABEL2:(void)0;
 }
 }
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val = var_n_id; /* _n_id on <self:AAssertExpr> */
-if (var_n_id == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val = var_n_block; /* _n_block on <self:ALoopExpr> */
+if (var_n_block == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_id,((val*)NULL)) on <var_n_id:nullable TId> */
+{ /* Inline kernel$Object$!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
 var_other = ((val*)NULL);
 {
-var5 = ((short int(*)(val* self, val* p0))(var_n_id->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_id, var_other); /* == on <var_n_id:nullable TId(TId)>*/
+var5 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
 }
 var6 = !var5;
 var3 = var6;
@@ -2875,97 +3296,48 @@ var = var3;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_id,self) on <var_n_id:nullable TId(TId)> */
-var_n_id->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_id:nullable TId(TId)> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
+var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
 RET_LABEL7:(void)0;
 }
 }
 } else {
 }
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3398);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AAssertExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3399);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL8:(void)0;
-}
-}
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AAssertExpr> */
-if (var_n_kwelse == NULL) {
-var9 = 0; /* is null */
-} else {
-var9 = 1; /* arg is null and recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#!= (var_n_kwelse,((val*)NULL)) on <var_n_kwelse:nullable TKwelse> */
-var_other = ((val*)NULL);
-{
-var12 = ((short int(*)(val* self, val* p0))(var_n_kwelse->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_kwelse, var_other); /* == on <var_n_kwelse:nullable TKwelse(TKwelse)>*/
-}
-var13 = !var12;
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-var9 = var10;
-}
-if (var9){
-{
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse(TKwelse)> */
-var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse(TKwelse)> */
-RET_LABEL14:(void)0;
-}
-}
-} else {
-}
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val = var_n_else; /* _n_else on <self:AAssertExpr> */
-if (var_n_else == NULL) {
-var15 = 0; /* is null */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:ALoopExpr> */
+if (var_n_label == NULL) {
+var8 = 0; /* is null */
 } else {
-var15 = 1; /* arg is null and recv is not */
+var8 = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_n_else,((val*)NULL)) on <var_n_else:nullable AExpr> */
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
 var_other = ((val*)NULL);
 {
-var18 = ((short int(*)(val* self, val* p0))(var_n_else->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_else, var_other); /* == on <var_n_else:nullable AExpr(AExpr)>*/
+var11 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
 }
-var19 = !var18;
-var16 = var19;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+var12 = !var11;
+var9 = var12;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
 }
-var15 = var16;
+var8 = var9;
 }
-if (var15){
+if (var8){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_n_else,self) on <var_n_else:nullable AExpr(AExpr)> */
-var_n_else->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_else:nullable AExpr(AExpr)> */
-RET_LABEL20:(void)0;
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
+RET_LABEL13:(void)0;
 }
 }
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AAssertExpr#replace_child for (self: AAssertExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AAssertExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ALoopExpr$replace_child for (self: ALoopExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwassert */;
+val* var /* : TKwloop */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -2974,7 +3346,7 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : nullable TId */;
+val* var7 /* : nullable AExpr */;
 short int var8 /* : Bool */;
 short int var9 /* : Bool */;
 short int var11 /* : Bool */;
@@ -2983,45 +3355,31 @@ short int var14 /* : Bool */;
 int cltype15;
 int idtype16;
 const char* var_class_name17;
-val* var18 /* : AExpr */;
+val* var18 /* : nullable ALabel */;
 short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-short int var23 /* : Bool */;
+short int var20 /* : Bool */;
+short int var22 /* : Bool */;
 short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-const char* var_class_name27;
-val* var28 /* : nullable TKwelse */;
-short int var29 /* : Bool */;
-short int var30 /* : Bool */;
-short int var32 /* : Bool */;
-short int var34 /* : Bool */;
-short int var35 /* : Bool */;
-int cltype36;
-int idtype37;
-const char* var_class_name38;
-val* var39 /* : nullable AExpr */;
-short int var40 /* : Bool */;
-short int var41 /* : Bool */;
-short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-short int var46 /* : Bool */;
-int cltype47;
-int idtype48;
-const char* var_class_name49;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+const char* var_class_name28;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val; /* _n_kwassert on <self:AAssertExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val; /* _n_kwloop on <self:ALoopExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwassert");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3408);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwloop");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3262);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwassert> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwloop> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwassert> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwloop> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -3034,9 +3392,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwassert */
-cltype = type_nitc__TKwassert.color;
-idtype = type_nitc__TKwassert.id;
+/* <var_new_child:nullable ANode> isa TKwloop */
+cltype = type_nitc__TKwloop.color;
+idtype = type_nitc__TKwloop.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -3048,24 +3406,24 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwassert", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3409);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwloop", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3263);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AAssertExpr___n_kwassert_61d(self, var_new_child); /* Direct call parser_prod#AAssertExpr#n_kwassert= on <self:AAssertExpr>*/
+nitc__parser_prod___ALoopExpr___n_kwloop_61d(self, var_new_child); /* Direct call parser_prod$ALoopExpr$n_kwloop= on <self:ALoopExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val; /* _n_id on <self:AAssertExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
 if (var7 == NULL) {
 var8 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:nullable TId> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:nullable AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:nullable TId(TId)> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:nullable AExpr(AExpr)> */
 var13 = var7 == var_other;
 var11 = var13;
 goto RET_LABEL12;
@@ -3079,9 +3437,9 @@ RET_LABEL10:(void)0;
 var8 = var9;
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa nullable TId */
-cltype15 = type_nullable__nitc__TId.color;
-idtype16 = type_nullable__nitc__TId.id;
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype15 = type_nullable__nitc__AExpr.color;
+idtype16 = type_nullable__nitc__AExpr.id;
 if(var_new_child == NULL) {
 var14 = 1;
 } else {
@@ -3093,188 +3451,135 @@ var14 = var_new_child->type->type_table[cltype15] == idtype16;
 }
 if (unlikely(!var14)) {
 var_class_name17 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TId", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3413);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3267);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AAssertExpr___n_id_61d(self, var_new_child); /* Direct call parser_prod#AAssertExpr#n_id= on <self:AAssertExpr>*/
+nitc__parser_prod___ALoopExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod$ALoopExpr$n_block= on <self:ALoopExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var18 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
-if (unlikely(var18 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3416);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var18,var_old_child) on <var18:AExpr> */
+var18 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ALoopExpr> */
+if (var18 == NULL) {
+var19 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var18,var_old_child) on <var18:nullable ALabel> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var18,var_other) on <var18:AExpr> */
-var23 = var18 == var_other;
-var21 = var23;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var18,var_other) on <var18:nullable ALabel(ALabel)> */
+var24 = var18 == var_other;
+var22 = var24;
+goto RET_LABEL23;
+RET_LABEL23:(void)0;
 }
 }
-var19 = var21;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
 }
+var19 = var20;
 }
 if (var19){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype25 = type_nitc__AExpr.color;
-idtype26 = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa nullable ALabel */
+cltype26 = type_nullable__nitc__ALabel.color;
+idtype27 = type_nullable__nitc__ALabel.id;
 if(var_new_child == NULL) {
-var24 = 0;
+var25 = 1;
 } else {
-if(cltype25 >= var_new_child->type->table_size) {
-var24 = 0;
+if(cltype26 >= var_new_child->type->table_size) {
+var25 = 0;
 } else {
-var24 = var_new_child->type->type_table[cltype25] == idtype26;
+var25 = var_new_child->type->type_table[cltype26] == idtype27;
 }
 }
-if (unlikely(!var24)) {
-var_class_name27 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3417);
+if (unlikely(!var25)) {
+var_class_name28 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3271);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AAssertExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AAssertExpr#n_expr= on <self:AAssertExpr>*/
+nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$ALoopExpr$n_label= on <self:ALoopExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var28 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val; /* _n_kwelse on <self:AAssertExpr> */
-if (var28 == NULL) {
-var29 = 0; /* <var_old_child:ANode> cannot be null */
-} else {
-{ /* Inline kernel#Object#== (var28,var_old_child) on <var28:nullable TKwelse> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var28,var_other) on <var28:nullable TKwelse(TKwelse)> */
-var34 = var28 == var_other;
-var32 = var34;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+RET_LABEL:;
 }
+/* method parser_prod$ALoopExpr$n_kwloop= for (self: ALoopExpr, TKwloop) */
+void nitc__parser_prod___ALoopExpr___n_kwloop_61d(val* self, val* p0) {
+val* var_node /* var node: TKwloop */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val = var_node; /* _n_kwloop on <self:ALoopExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwloop> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwloop> */
+RET_LABEL1:(void)0;
 }
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
 }
-var29 = var30;
+RET_LABEL:;
 }
-if (var29){
-/* <var_new_child:nullable ANode> isa nullable TKwelse */
-cltype36 = type_nullable__nitc__TKwelse.color;
-idtype37 = type_nullable__nitc__TKwelse.id;
-if(var_new_child == NULL) {
-var35 = 1;
-} else {
-if(cltype36 >= var_new_child->type->table_size) {
-var35 = 0;
+/* method parser_prod$ALoopExpr$n_block= for (self: ALoopExpr, nullable AExpr) */
+void nitc__parser_prod___ALoopExpr___n_block_61d(val* self, val* p0) {
+val* var_node /* var node: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val = var_node; /* _n_block on <self:ALoopExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
 } else {
-var35 = var_new_child->type->type_table[cltype36] == idtype37;
+var = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
 }
-if (unlikely(!var35)) {
-var_class_name38 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TKwelse", var_class_name38);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3421);
-fatal_exit(1);
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
 }
+if (var){
 {
-nitc__parser_prod___AAssertExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod#AAssertExpr#n_kwelse= on <self:AAssertExpr>*/
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
 }
-goto RET_LABEL;
-} else {
 }
-var39 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
-if (var39 == NULL) {
-var40 = 0; /* <var_old_child:ANode> cannot be null */
 } else {
-{ /* Inline kernel#Object#== (var39,var_old_child) on <var39:nullable AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var39,var_other) on <var39:nullable AExpr(AExpr)> */
-var45 = var39 == var_other;
-var43 = var45;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
 }
+RET_LABEL:;
 }
-var41 = var43;
-goto RET_LABEL42;
-RET_LABEL42:(void)0;
-}
-var40 = var41;
-}
-if (var40){
-/* <var_new_child:nullable ANode> isa nullable AExpr */
-cltype47 = type_nullable__nitc__AExpr.color;
-idtype48 = type_nullable__nitc__AExpr.id;
-if(var_new_child == NULL) {
-var46 = 1;
-} else {
-if(cltype47 >= var_new_child->type->table_size) {
-var46 = 0;
-} else {
-var46 = var_new_child->type->type_table[cltype47] == idtype48;
-}
-}
-if (unlikely(!var46)) {
-var_class_name49 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3425);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AAssertExpr___n_else_61d(self, var_new_child); /* Direct call parser_prod#AAssertExpr#n_else= on <self:AAssertExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAssertExpr#n_kwassert= for (self: AAssertExpr, TKwassert) */
-void nitc__parser_prod___AAssertExpr___n_kwassert_61d(val* self, val* p0) {
-val* var_node /* var node: TKwassert */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val = var_node; /* _n_kwassert on <self:AAssertExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwassert> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwassert> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAssertExpr#n_id= for (self: AAssertExpr, nullable TId) */
-void nitc__parser_prod___AAssertExpr___n_id_61d(val* self, val* p0) {
-val* var_node /* var node: nullable TId */;
+/* method parser_prod$ALoopExpr$n_label= for (self: ALoopExpr, nullable ALabel) */
+void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+val* var_node /* var node: nullable ALabel */;
 short int var /* : Bool */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
 short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val = var_node; /* _n_id on <self:AAssertExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:ALoopExpr> */
 if (var_node == NULL) {
 var = 0; /* is null */
 } else {
 var = 1; /* arg is null and recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable TId> */
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
 var_other = ((val*)NULL);
 {
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TId(TId)>*/
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
 }
 var4 = !var3;
 var1 = var4;
@@ -3285,8 +3590,8 @@ var = var1;
 }
 if (var){
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable TId(TId)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TId(TId)> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
 RET_LABEL5:(void)0;
 }
 }
@@ -3294,227 +3599,257 @@ RET_LABEL5:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AAssertExpr#n_expr= for (self: AAssertExpr, AExpr) */
-void nitc__parser_prod___AAssertExpr___n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val = var_node; /* _n_expr on <self:AAssertExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
+/* method parser_prod$ALoopExpr$visit_all for (self: ALoopExpr, Visitor) */
+void nitc__parser_prod___ALoopExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+val* var_v /* var v: Visitor */;
+val* var /* : TKwloop */;
+val* var1 /* : nullable AExpr */;
+val* var2 /* : nullable ALabel */;
+var_v = p0;
+var = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_kwloop].val; /* _n_kwloop on <self:ALoopExpr> */
+if (unlikely(var == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method parser_prod#AAssertExpr#n_kwelse= for (self: AAssertExpr, nullable TKwelse) */
-void nitc__parser_prod___AAssertExpr___n_kwelse_61d(val* self, val* p0) {
-val* var_node /* var node: nullable TKwelse */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AAssertExpr> */
-if (var_node == NULL) {
-var = 0; /* is null */
-} else {
-var = 1; /* arg is null and recv is not */
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwloop");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3295);
+fatal_exit(1);
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable TKwelse> */
-var_other = ((val*)NULL);
 {
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TKwelse(TKwelse)>*/
-}
-var4 = !var3;
-var1 = var4;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-var = var1;
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-if (var){
+var1 = self->attrs[COLOR_nitc__parser_nodes__ALoopExpr___n_block].val; /* _n_block on <self:ALoopExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable TKwelse(TKwelse)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TKwelse(TKwelse)> */
-RET_LABEL5:(void)0;
-}
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-} else {
+var2 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:ALoopExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AAssertExpr#n_else= for (self: AAssertExpr, nullable AExpr) */
-void nitc__parser_prod___AAssertExpr___n_else_61d(val* self, val* p0) {
-val* var_node /* var node: nullable AExpr */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
+/* method parser_prod$AForExpr$init_aforexpr for (self: AForExpr, nullable TKwfor, Collection[Object], nullable TKwdo, nullable AExpr, nullable ALabel) */
+void nitc__parser_prod___AForExpr___init_aforexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
+val* var_n_kwfor /* var n_kwfor: nullable TKwfor */;
+val* var_n_groups /* var n_groups: Collection[Object] */;
+val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
+val* var_n_block /* var n_block: nullable AExpr */;
+val* var_n_label /* var n_label: nullable ALabel */;
+val* var /* : ANodes[AForGroup] */;
+val* var4 /* : ANodes[AForGroup] */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
 val* var_other /* var other: nullable Object */;
-short int var3 /* : Bool */;
-short int var4 /* : Bool */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val = var_node; /* _n_else on <self:AAssertExpr> */
-if (var_node == NULL) {
-var = 0; /* is null */
-} else {
-var = 1; /* arg is null and recv is not */
-}
-if (0) {
-{ /* Inline kernel#Object#!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
-var_other = ((val*)NULL);
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
 {
-var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+{ /* Inline kernel$Object$init (self) on <self:AForExpr> */
+RET_LABEL1:(void)0;
 }
-var4 = !var3;
-var1 = var4;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
 }
-var = var1;
+var_n_kwfor = p0;
+var_n_groups = p1;
+var_n_kwdo = p2;
+var_n_block = p3;
+var_n_label = p4;
+if (unlikely(var_n_kwfor == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (var){
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
-RET_LABEL5:(void)0;
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3309);
+fatal_exit(1);
 }
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val = var_n_kwfor; /* _n_kwfor on <self:AForExpr> */
+if (var_n_kwfor == 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__parser_prod, 3310);
+fatal_exit(1);
 } else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwfor,self) on <var_n_kwfor:nullable TKwfor> */
+if (unlikely(var_n_kwfor == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-RET_LABEL:;
-}
-/* method parser_prod#AAssertExpr#visit_all for (self: AAssertExpr, Visitor) */
-void nitc__parser_prod___AAssertExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwassert */;
-val* var1 /* : nullable TId */;
-val* var2 /* : AExpr */;
-val* var3 /* : nullable TKwelse */;
-val* var4 /* : nullable AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val; /* _n_kwassert on <self:AAssertExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwassert");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3459);
+PRINT_ERROR("Runtime error: %s", "Receiver is null");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val; /* _n_id on <self:AAssertExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+var_n_kwfor->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwfor:nullable TKwfor> */
+RET_LABEL2:(void)0;
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3461);
-fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+{ /* Inline parser_nodes$AForExpr$n_groups (self) on <self:AForExpr> */
+var4 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
+if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var3 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val; /* _n_kwelse on <self:AAssertExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_groups");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 2001);
+fatal_exit(1);
 }
-var4 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
-{
-nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+var = var4;
+RET_LABEL3:(void)0;
 }
-RET_LABEL:;
 }
-/* method parser_prod#AOnceExpr#init_aonceexpr for (self: AOnceExpr, nullable TKwonce, nullable AExpr) */
-void nitc__parser_prod___AOnceExpr___init_aonceexpr(val* self, val* p0, val* p1) {
-val* var_n_kwonce /* var n_kwonce: nullable TKwonce */;
-val* var_n_expr /* var n_expr: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AOnceExpr> */
-RET_LABEL1:(void)0;
+nitc___nitc__ANodes___unsafe_add_all(var, var_n_groups); /* Direct call parser_nodes$ANodes$unsafe_add_all on <var:ANodes[AForGroup]>*/
 }
+if (unlikely(var_n_kwdo == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_n_kwonce = p0;
-var_n_expr = p1;
-if (unlikely(var_n_kwonce == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3472);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3312);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val = var_n_kwonce; /* _n_kwonce on <self:AOnceExpr> */
-if (var_n_kwonce == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AForExpr> */
+if (var_n_kwdo == 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__parser_prod, 3473);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3313);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwonce,self) on <var_n_kwonce:nullable TKwonce> */
-if (unlikely(var_n_kwonce == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
+if (unlikely(var_n_kwdo == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwonce->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwonce:nullable TKwonce> */
-RET_LABEL2:(void)0;
-}
+var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
+RET_LABEL5:(void)0;
 }
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3474);
-fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOnceExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3475);
-fatal_exit(1);
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val = var_n_block; /* _n_block on <self:AForExpr> */
+if (var_n_block == NULL) {
+var6 = 0; /* is null */
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+var6 = 1; /* arg is null and recv is not */
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL3:(void)0;
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var9 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
 }
+var10 = !var9;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
-RET_LABEL:;
+var6 = var7;
 }
-/* method parser_prod#AOnceExpr#replace_child for (self: AOnceExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AOnceExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwonce */;
-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;
-const char* var_class_name;
-val* var7 /* : AExpr */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
+if (var6){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
+var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
+RET_LABEL11:(void)0;
+}
+}
+} else {
+}
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AForExpr> */
+if (var_n_label == NULL) {
+var12 = 0; /* is null */
+} else {
+var12 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+var_other = ((val*)NULL);
+{
+var15 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
+}
+var16 = !var15;
+var13 = var16;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
+}
+var12 = var13;
+}
+if (var12){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
+RET_LABEL17:(void)0;
+}
+}
+} else {
+}
+RET_LABEL:;
+}
+/* method parser_prod$AForExpr$replace_child for (self: AForExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AForExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+val* var_old_child /* var old_child: ANode */;
+val* var_new_child /* var new_child: nullable ANode */;
+val* var /* : TKwfor */;
+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;
+const char* var_class_name;
+val* var7 /* : ANodes[AForGroup] */;
+val* var9 /* : ANodes[AForGroup] */;
+short int var10 /* : Bool */;
+val* var11 /* : TKwdo */;
+short int var12 /* : Bool */;
+short int var14 /* : Bool */;
+short int var16 /* : Bool */;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+const char* var_class_name20;
+val* var21 /* : nullable AExpr */;
+short int var22 /* : Bool */;
+short int var23 /* : Bool */;
+short int var25 /* : Bool */;
+short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+const char* var_class_name31;
+val* var32 /* : nullable ALabel */;
+short int var33 /* : Bool */;
+short int var34 /* : Bool */;
+short int var36 /* : Bool */;
+short int var38 /* : Bool */;
+short int var39 /* : Bool */;
+int cltype40;
+int idtype41;
+const char* var_class_name42;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val; /* _n_kwonce on <self:AOnceExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val; /* _n_kwfor on <self:AForExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwonce");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3480);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwfor");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3322);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwonce> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwfor> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwonce> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwfor> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -3527,9 +3862,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa TKwonce */
-cltype = type_nitc__TKwonce.color;
-idtype = type_nitc__TKwonce.id;
+/* <var_new_child:nullable ANode> isa TKwfor */
+cltype = type_nitc__TKwfor.color;
+idtype = type_nitc__TKwfor.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -3541,1835 +3876,525 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwonce", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3481);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwfor", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3323);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AOnceExpr___n_kwonce_61d(self, var_new_child); /* Direct call parser_prod#AOnceExpr#n_kwonce= on <self:AOnceExpr>*/
+nitc__parser_prod___AForExpr___n_kwfor_61d(self, var_new_child); /* Direct call parser_prod$AForExpr$n_kwfor= on <self:AForExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3484);
+{
+{ /* Inline parser_nodes$AForExpr$n_groups (self) on <self:AForExpr> */
+var9 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_groups].val; /* _n_groups on <self:AForExpr> */
+if (unlikely(var9 == 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);
+}
+var7 = var9;
+RET_LABEL8:(void)0;
+}
+}
+{
+var10 = nitc___nitc__ANodes___replace_child(var7, var_old_child, var_new_child);
+}
+if (var10){
+goto RET_LABEL;
+} else {
+}
+var11 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val; /* _n_kwdo on <self:AForExpr> */
+if (unlikely(var11 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3327);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:AExpr> */
+{ /* Inline kernel$Object$== (var11,var_old_child) on <var11:TKwdo> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:AExpr> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var11,var_other) on <var11:TKwdo> */
+var16 = var11 == var_other;
+var14 = var16;
+goto RET_LABEL15;
+RET_LABEL15:(void)0;
 }
 }
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var12 = var14;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
 }
-if (var8){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype14 = type_nitc__AExpr.color;
-idtype15 = type_nitc__AExpr.id;
+if (var12){
+/* <var_new_child:nullable ANode> isa TKwdo */
+cltype18 = type_nitc__TKwdo.color;
+idtype19 = type_nitc__TKwdo.id;
 if(var_new_child == NULL) {
-var13 = 0;
+var17 = 0;
 } else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
+if(cltype18 >= var_new_child->type->table_size) {
+var17 = 0;
 } else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
+var17 = var_new_child->type->type_table[cltype18] == idtype19;
 }
 }
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3485);
+if (unlikely(!var17)) {
+var_class_name20 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name20);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3328);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AOnceExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AOnceExpr#n_expr= on <self:AOnceExpr>*/
+nitc__parser_prod___AForExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod$AForExpr$n_kwdo= on <self:AForExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-RET_LABEL:;
-}
-/* method parser_prod#AOnceExpr#n_kwonce= for (self: AOnceExpr, TKwonce) */
-void nitc__parser_prod___AOnceExpr___n_kwonce_61d(val* self, val* p0) {
-val* var_node /* var node: TKwonce */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val = var_node; /* _n_kwonce on <self:AOnceExpr> */
+var21 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+if (var21 == NULL) {
+var22 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var21,var_old_child) on <var21:nullable AExpr> */
+var_other = var_old_child;
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwonce> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwonce> */
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var21,var_other) on <var21:nullable AExpr(AExpr)> */
+var27 = var21 == var_other;
+var25 = var27;
+goto RET_LABEL26;
+RET_LABEL26:(void)0;
 }
 }
-RET_LABEL:;
+var23 = var25;
+goto RET_LABEL24;
+RET_LABEL24:(void)0;
 }
-/* method parser_prod#AOnceExpr#n_expr= for (self: AOnceExpr, AExpr) */
-void nitc__parser_prod___AOnceExpr___n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val = var_node; /* _n_expr on <self:AOnceExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+var22 = var23;
 }
+if (var22){
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype29 = type_nullable__nitc__AExpr.color;
+idtype30 = type_nullable__nitc__AExpr.id;
+if(var_new_child == NULL) {
+var28 = 1;
+} else {
+if(cltype29 >= var_new_child->type->table_size) {
+var28 = 0;
+} else {
+var28 = var_new_child->type->type_table[cltype29] == idtype30;
 }
-RET_LABEL:;
 }
-/* method parser_prod#AOnceExpr#visit_all for (self: AOnceExpr, Visitor) */
-void nitc__parser_prod___AOnceExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwonce */;
-val* var1 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val; /* _n_kwonce on <self:AOnceExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwonce");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3504);
+if (unlikely(!var28)) {
+var_class_name31 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name31);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3332);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc__parser_prod___AForExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod$AForExpr$n_block= on <self:AForExpr>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3505);
-fatal_exit(1);
+goto RET_LABEL;
+} else {
 }
+var32 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AForExpr> */
+if (var32 == NULL) {
+var33 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var32,var_old_child) on <var32:nullable ALabel> */
+var_other = var_old_child;
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-RET_LABEL:;
+{ /* Inline kernel$Object$is_same_instance (var32,var_other) on <var32:nullable ALabel(ALabel)> */
+var38 = var32 == var_other;
+var36 = var38;
+goto RET_LABEL37;
+RET_LABEL37:(void)0;
 }
-/* method parser_prod#AOrExpr#init_aorexpr for (self: AOrExpr, nullable AExpr, nullable TKwor, nullable AExpr) */
-void nitc__parser_prod___AOrExpr___init_aorexpr(val* self, val* p0, val* p1, val* p2) {
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TKwor */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
-{
-{ /* Inline kernel#Object#init (self) on <self:AOrExpr> */
-RET_LABEL1:(void)0;
 }
+var34 = var36;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3586);
-fatal_exit(1);
+var33 = var34;
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOrExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3587);
-fatal_exit(1);
+if (var33){
+/* <var_new_child:nullable ANode> isa nullable ALabel */
+cltype40 = type_nullable__nitc__ALabel.color;
+idtype41 = type_nullable__nitc__ALabel.id;
+if(var_new_child == NULL) {
+var39 = 1;
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3588);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AOrExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3589);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TKwor> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwor> */
-RET_LABEL3:(void)0;
-}
-}
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3590);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AOrExpr> */
-if (var_n_expr2 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3591);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrExpr#replace_child for (self: AOrExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
-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;
-const char* var_class_name;
-val* var7 /* : Token */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-var_old_child = p0;
-var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3596);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
-var5 = var == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-}
-if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_new_child->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_new_child->type->type_table[cltype] == idtype;
-}
-}
-if (unlikely(!var6)) {
-var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3597);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AOrExpr#n_expr= on <self:AOrExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3600);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
-}
-}
-if (var8){
-/* <var_new_child:nullable ANode> isa TKwor */
-cltype14 = type_nitc__TKwor.color;
-idtype15 = type_nitc__TKwor.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
-}
-}
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwor", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3601);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AOrExpr#n_op= on <self:AOrExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3604);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3605);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AOrExpr#n_expr2= on <self:AOrExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrExpr#n_expr= for (self: AOrExpr, AExpr) */
-void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AOrExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrExpr#n_op= for (self: AOrExpr, Token) */
-void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AOrExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrExpr#n_expr2= for (self: AOrExpr, AExpr) */
-void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AOrExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrExpr#visit_all for (self: AOrExpr, Visitor) */
-void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3629);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3630);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3631);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#init_aandexpr for (self: AAndExpr, nullable AExpr, nullable TKwand, nullable AExpr) */
-void nitc__parser_prod___AAndExpr___init_aandexpr(val* self, val* p0, val* p1, val* p2) {
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TKwand */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
-{
-{ /* Inline kernel#Object#init (self) on <self:AAndExpr> */
-RET_LABEL1:(void)0;
-}
-}
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3641);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AAndExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3642);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3643);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AAndExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3644);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TKwand> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwand> */
-RET_LABEL3:(void)0;
-}
-}
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3645);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AAndExpr> */
-if (var_n_expr2 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3646);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#replace_child for (self: AAndExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
-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;
-const char* var_class_name;
-val* var7 /* : Token */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-var_old_child = p0;
-var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3651);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
-var5 = var == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-}
-if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_new_child->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_new_child->type->type_table[cltype] == idtype;
-}
-}
-if (unlikely(!var6)) {
-var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3652);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AAndExpr#n_expr= on <self:AAndExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AAndExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3655);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
-}
-}
-if (var8){
-/* <var_new_child:nullable ANode> isa TKwand */
-cltype14 = type_nitc__TKwand.color;
-idtype15 = type_nitc__TKwand.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
-}
-}
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwand", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3656);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AAndExpr#n_op= on <self:AAndExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AAndExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3659);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3660);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AAndExpr#n_expr2= on <self:AAndExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#n_expr= for (self: AAndExpr, AExpr) */
-void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AAndExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#n_op= for (self: AAndExpr, Token) */
-void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AAndExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#n_expr2= for (self: AAndExpr, AExpr) */
-void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AAndExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AAndExpr#visit_all for (self: AAndExpr, Visitor) */
-void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3684);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AAndExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3685);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AAndExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3686);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#init_aorelseexpr for (self: AOrElseExpr, nullable AExpr, nullable TKwor, nullable TKwelse, nullable AExpr) */
-void nitc__parser_prod___AOrElseExpr___init_aorelseexpr(val* self, val* p0, val* p1, val* p2, val* p3) {
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TKwor */;
-val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
-{
-{ /* Inline kernel#Object#init (self) on <self:AOrElseExpr> */
-RET_LABEL1:(void)0;
-}
-}
-var_n_expr = p0;
-var_n_op = p1;
-var_n_kwelse = p2;
-var_n_expr2 = p3;
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3697);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOrElseExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3698);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3699);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AOrElseExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3700);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TKwor> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwor> */
-RET_LABEL3:(void)0;
-}
-}
-if (unlikely(var_n_kwelse == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3701);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AOrElseExpr> */
-if (var_n_kwelse == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3702);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse> */
-if (unlikely(var_n_kwelse == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse> */
-RET_LABEL4:(void)0;
-}
-}
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3703);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AOrElseExpr> */
-if (var_n_expr2 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3704);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL5:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#replace_child for (self: AOrElseExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
-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;
-const char* var_class_name;
-val* var7 /* : Token */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : TKwelse */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-val* var27 /* : AExpr */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-short int var32 /* : Bool */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-const char* var_class_name36;
-var_old_child = p0;
-var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3709);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
-var5 = var == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-}
-if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_new_child->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_new_child->type->type_table[cltype] == idtype;
-}
-}
-if (unlikely(!var6)) {
-var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3710);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AOrElseExpr#n_expr= on <self:AOrElseExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrElseExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3713);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
-}
-}
-if (var8){
-/* <var_new_child:nullable ANode> isa TKwor */
-cltype14 = type_nitc__TKwor.color;
-idtype15 = type_nitc__TKwor.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
-}
-}
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwor", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3714);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AOrElseExpr#n_op= on <self:AOrElseExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val; /* _n_kwelse on <self:AOrElseExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3717);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:TKwelse> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:TKwelse> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa TKwelse */
-cltype24 = type_nitc__TKwelse.color;
-idtype25 = type_nitc__TKwelse.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwelse", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3718);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrElseExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod#AOrElseExpr#n_kwelse= on <self:AOrElseExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var27 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
-if (unlikely(var27 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3721);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var27,var_old_child) on <var27:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var27,var_other) on <var27:AExpr> */
-var32 = var27 == var_other;
-var30 = var32;
-goto RET_LABEL31;
-RET_LABEL31:(void)0;
-}
-}
-var28 = var30;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
-}
-}
-if (var28){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype34 = type_nitc__AExpr.color;
-idtype35 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var33 = 0;
-} else {
-if(cltype34 >= var_new_child->type->table_size) {
-var33 = 0;
-} else {
-var33 = var_new_child->type->type_table[cltype34] == idtype35;
-}
-}
-if (unlikely(!var33)) {
-var_class_name36 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name36);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3722);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AOrElseExpr#n_expr2= on <self:AOrElseExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#n_expr= for (self: AOrElseExpr, AExpr) */
-void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AOrElseExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#n_op= for (self: AOrElseExpr, Token) */
-void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AOrElseExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#n_kwelse= for (self: AOrElseExpr, TKwelse) */
-void nitc__parser_prod___AOrElseExpr___n_kwelse_61d(val* self, val* p0) {
-val* var_node /* var node: TKwelse */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AOrElseExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwelse> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwelse> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#n_expr2= for (self: AOrElseExpr, AExpr) */
-void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AOrElseExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AOrElseExpr#visit_all for (self: AOrElseExpr, Visitor) */
-void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : TKwelse */;
-val* var3 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3751);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrElseExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3752);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val; /* _n_kwelse on <self:AOrElseExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3753);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var3 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3754);
-fatal_exit(1);
-}
-{
-nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#init_aimpliesexpr for (self: AImpliesExpr, nullable AExpr, nullable TKwimplies, nullable AExpr) */
-void nitc__parser_prod___AImpliesExpr___init_aimpliesexpr(val* self, val* p0, val* p1, val* p2) {
-val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TKwimplies */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
-{
-{ /* Inline kernel#Object#init (self) on <self:AImpliesExpr> */
-RET_LABEL1:(void)0;
-}
-}
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3764);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AImpliesExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3765);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3766);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AImpliesExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3767);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TKwimplies> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwimplies> */
-RET_LABEL3:(void)0;
-}
-}
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3768);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AImpliesExpr> */
-if (var_n_expr2 == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3769);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#replace_child for (self: AImpliesExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
-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;
-const char* var_class_name;
-val* var7 /* : Token */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-var_old_child = p0;
-var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3774);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
-var5 = var == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-var1 = var3;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-}
-if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_new_child->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_new_child->type->type_table[cltype] == idtype;
-}
-}
-if (unlikely(!var6)) {
-var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3775);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AImpliesExpr#n_expr= on <self:AImpliesExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AImpliesExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3778);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
-}
-}
-if (var8){
-/* <var_new_child:nullable ANode> isa TKwimplies */
-cltype14 = type_nitc__TKwimplies.color;
-idtype15 = type_nitc__TKwimplies.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
-}
-}
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwimplies", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3779);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AImpliesExpr#n_op= on <self:AImpliesExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AImpliesExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3782);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3783);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AImpliesExpr#n_expr2= on <self:AImpliesExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#n_expr= for (self: AImpliesExpr, AExpr) */
-void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AImpliesExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#n_op= for (self: AImpliesExpr, Token) */
-void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AImpliesExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#n_expr2= for (self: AImpliesExpr, AExpr) */
-void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AImpliesExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AImpliesExpr#visit_all for (self: AImpliesExpr, Visitor) */
-void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3807);
-fatal_exit(1);
+if(cltype40 >= var_new_child->type->table_size) {
+var39 = 0;
+} else {
+var39 = var_new_child->type->type_table[cltype40] == idtype41;
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AImpliesExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3808);
+if (unlikely(!var39)) {
+var_class_name42 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name42);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3336);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AImpliesExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3809);
-fatal_exit(1);
+nitc__parser_prod___AForExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$AForExpr$n_label= on <self:AForExpr>*/
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+goto RET_LABEL;
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANotExpr#init_anotexpr for (self: ANotExpr, nullable TKwnot, nullable AExpr) */
-void nitc__parser_prod___ANotExpr___init_anotexpr(val* self, val* p0, val* p1) {
-val* var_n_kwnot /* var n_kwnot: nullable TKwnot */;
-val* var_n_expr /* var n_expr: nullable AExpr */;
+/* method parser_prod$AForExpr$n_kwfor= for (self: AForExpr, TKwfor) */
+void nitc__parser_prod___AForExpr___n_kwfor_61d(val* self, val* p0) {
+val* var_node /* var node: TKwfor */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val = var_node; /* _n_kwfor on <self:AForExpr> */
 {
-{ /* Inline kernel#Object#init (self) on <self:ANotExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwfor> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwfor> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_kwnot = p0;
-var_n_expr = p1;
-if (unlikely(var_n_kwnot == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3818);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val = var_n_kwnot; /* _n_kwnot on <self:ANotExpr> */
-if (var_n_kwnot == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3819);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwnot,self) on <var_n_kwnot:nullable TKwnot> */
-if (unlikely(var_n_kwnot == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_kwnot->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwnot:nullable TKwnot> */
-RET_LABEL2:(void)0;
-}
-}
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3820);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ANotExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3821);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+RET_LABEL:;
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL3:(void)0;
+/* method parser_prod$AForExpr$n_kwdo= for (self: AForExpr, TKwdo) */
+void nitc__parser_prod___AForExpr___n_kwdo_61d(val* self, val* p0) {
+val* var_node /* var node: TKwdo */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AForExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwdo> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
+RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANotExpr#replace_child for (self: ANotExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ANotExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
-val* var_old_child /* var old_child: ANode */;
-val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : TKwnot */;
+/* method parser_prod$AForExpr$n_block= for (self: AForExpr, nullable AExpr) */
+void nitc__parser_prod___AForExpr___n_block_61d(val* self, val* p0) {
+val* var_node /* var node: 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;
-const char* var_class_name;
-val* var7 /* : AExpr */;
-short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-var_old_child = p0;
-var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val; /* _n_kwnot on <self:ANotExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwnot");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3826);
-fatal_exit(1);
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val = var_node; /* _n_block on <self:AForExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
 }
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:TKwnot> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:TKwnot> */
-var5 = var == var_other;
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
 }
-var1 = var3;
+var4 = !var3;
+var1 = var4;
 goto RET_LABEL2;
 RET_LABEL2:(void)0;
 }
+var = var1;
 }
-if (var1){
-/* <var_new_child:nullable ANode> isa TKwnot */
-cltype = type_nitc__TKwnot.color;
-idtype = type_nitc__TKwnot.id;
-if(var_new_child == NULL) {
-var6 = 0;
-} else {
-if(cltype >= var_new_child->type->table_size) {
-var6 = 0;
-} else {
-var6 = var_new_child->type->type_table[cltype] == idtype;
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
 }
 }
-if (unlikely(!var6)) {
-var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwnot", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3827);
-fatal_exit(1);
+} else {
 }
-{
-nitc__parser_prod___ANotExpr___n_kwnot_61d(self, var_new_child); /* Direct call parser_prod#ANotExpr#n_kwnot= on <self:ANotExpr>*/
+RET_LABEL:;
 }
-goto RET_LABEL;
+/* method parser_prod$AForExpr$n_label= for (self: AForExpr, nullable ALabel) */
+void nitc__parser_prod___AForExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+val* var_node /* var node: nullable ALabel */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AForExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
 } else {
+var = 1; /* arg is null and recv is not */
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3830);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:AExpr> */
-var_other = var_old_child;
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:AExpr> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
 }
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
+RET_LABEL5:(void)0;
 }
 }
-if (var8){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype14 = type_nitc__AExpr.color;
-idtype15 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var13 = 0;
-} else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
 } else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
+RET_LABEL:;
 }
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3831);
+/* method parser_prod$AForExpr$visit_all for (self: AForExpr, Visitor) */
+void nitc__parser_prod___AForExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+val* var_v /* var v: Visitor */;
+val* var /* : TKwfor */;
+val* var1 /* : ANodes[AForGroup] */;
+val* var3 /* : ANodes[AForGroup] */;
+val* var4 /* : TKwdo */;
+val* var5 /* : nullable AExpr */;
+val* var6 /* : nullable ALabel */;
+var_v = p0;
+var = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwfor].val; /* _n_kwfor on <self:AForExpr> */
+if (unlikely(var == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwfor");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3365);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ANotExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#ANotExpr#n_expr= on <self:ANotExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-RET_LABEL:;
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-/* method parser_prod#ANotExpr#n_kwnot= for (self: ANotExpr, TKwnot) */
-void nitc__parser_prod___ANotExpr___n_kwnot_61d(val* self, val* p0) {
-val* var_node /* var node: TKwnot */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val = var_node; /* _n_kwnot on <self:ANotExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwnot> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwnot> */
-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> */
+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);
 }
-RET_LABEL:;
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-/* method parser_prod#ANotExpr#n_expr= for (self: ANotExpr, AExpr) */
-void nitc__parser_prod___ANotExpr___n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val = var_node; /* _n_expr on <self:ANotExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
 }
+{
+nitc___nitc__ANodes___visit_all(var1, var_v); /* Direct call parser_nodes$ANodes$visit_all on <var1:ANodes[AForGroup]>*/
 }
-RET_LABEL:;
+var4 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_kwdo].val; /* _n_kwdo on <self:AForExpr> */
+if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-/* method parser_prod#ANotExpr#visit_all for (self: ANotExpr, Visitor) */
-void nitc__parser_prod___ANotExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
-val* var_v /* var v: Visitor */;
-val* var /* : TKwnot */;
-val* var1 /* : AExpr */;
-var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val; /* _n_kwnot on <self:ANotExpr> */
-if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwnot");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3850);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3367);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3851);
-fatal_exit(1);
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
+var5 = self->attrs[COLOR_nitc__parser_nodes__AForExpr___n_block].val; /* _n_block on <self:AForExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var5); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var6 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AForExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var6); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#init_aeqexpr for (self: AEqExpr, nullable AExpr, nullable TEq, nullable AExpr) */
-void nitc__parser_prod___AEqExpr___init_aeqexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AWithExpr$init_awithexpr for (self: AWithExpr, nullable TKwwith, nullable AExpr, nullable TKwdo, nullable AExpr, nullable ALabel) */
+void nitc__parser_prod___AWithExpr___init_awithexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
+val* var_n_kwwith /* var n_kwwith: nullable TKwwith */;
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TEq */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
+val* var_n_kwdo /* var n_kwdo: nullable TKwdo */;
+val* var_n_block /* var n_block: nullable AExpr */;
+val* var_n_label /* var n_label: nullable ALabel */;
+short int var /* : Bool */;
+short int var5 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var7 /* : Bool */;
+short int var8 /* : Bool */;
+short int var10 /* : Bool */;
+short int var11 /* : Bool */;
+short int var13 /* : Bool */;
+short int var14 /* : Bool */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AEqExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AWithExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
+var_n_kwwith = p0;
+var_n_expr = p1;
+var_n_kwdo = p2;
+var_n_block = p3;
+var_n_label = p4;
+if (unlikely(var_n_kwwith == 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__parser_prod, 3861);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3381);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AEqExpr> */
-if (var_n_expr == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val = var_n_kwwith; /* _n_kwwith on <self:AWithExpr> */
+if (var_n_kwwith == 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__parser_prod, 3862);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3382);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwwith,self) on <var_n_kwwith:nullable TKwwith> */
+if (unlikely(var_n_kwwith == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+var_n_kwwith->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwwith:nullable TKwwith> */
 RET_LABEL2:(void)0;
 }
 }
-if (unlikely(var_n_op == NULL)) {
+if (unlikely(var_n_expr == 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__parser_prod, 3863);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3383);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AEqExpr> */
-if (var_n_op == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AWithExpr> */
+if (var_n_expr == 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__parser_prod, 3864);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3384);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TEq> */
-if (unlikely(var_n_op == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TEq> */
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
 RET_LABEL3:(void)0;
 }
 }
-if (unlikely(var_n_expr2 == NULL)) {
+if (unlikely(var_n_kwdo == 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__parser_prod, 3865);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3385);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AEqExpr> */
-if (var_n_expr2 == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val = var_n_kwdo; /* _n_kwdo on <self:AWithExpr> */
+if (var_n_kwdo == 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__parser_prod, 3866);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3386);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwdo,self) on <var_n_kwdo:nullable TKwdo> */
+if (unlikely(var_n_kwdo == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
+var_n_kwdo->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwdo:nullable TKwdo> */
 RET_LABEL4:(void)0;
 }
 }
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val = var_n_block; /* _n_block on <self:AWithExpr> */
+if (var_n_block == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_block,((val*)NULL)) on <var_n_block:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var7 = ((short int(*)(val* self, val* p0))(var_n_block->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_block, var_other); /* == on <var_n_block:nullable AExpr(AExpr)>*/
+}
+var8 = !var7;
+var5 = var8;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
+}
+var = var5;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_block,self) on <var_n_block:nullable AExpr(AExpr)> */
+var_n_block->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_block:nullable AExpr(AExpr)> */
+RET_LABEL9:(void)0;
+}
+}
+} else {
+}
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_n_label; /* _n_label on <self:AWithExpr> */
+if (var_n_label == NULL) {
+var10 = 0; /* is null */
+} else {
+var10 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_label,((val*)NULL)) on <var_n_label:nullable ALabel> */
+var_other = ((val*)NULL);
+{
+var13 = ((short int(*)(val* self, val* p0))(var_n_label->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_label, var_other); /* == on <var_n_label:nullable ALabel(ALabel)>*/
+}
+var14 = !var13;
+var11 = var14;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
+}
+var10 = var11;
+}
+if (var10){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_label,self) on <var_n_label:nullable ALabel(ALabel)> */
+var_n_label->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_label:nullable ALabel(ALabel)> */
+RET_LABEL15:(void)0;
+}
+}
+} else {
+}
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#replace_child for (self: AEqExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AWithExpr$replace_child for (self: AWithExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
+val* var /* : TKwwith */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -5378,7 +4403,7 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : Token */;
+val* var7 /* : AExpr */;
 short int var8 /* : Bool */;
 short int var10 /* : Bool */;
 short int var12 /* : Bool */;
@@ -5386,7 +4411,7 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-val* var17 /* : AExpr */;
+val* var17 /* : TKwdo */;
 short int var18 /* : Bool */;
 short int var20 /* : Bool */;
 short int var22 /* : Bool */;
@@ -5394,19 +4419,40 @@ short int var23 /* : Bool */;
 int cltype24;
 int idtype25;
 const char* var_class_name26;
+val* var27 /* : nullable AExpr */;
+short int var28 /* : Bool */;
+short int var29 /* : Bool */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+const char* var_class_name37;
+val* var38 /* : nullable ALabel */;
+short int var39 /* : Bool */;
+short int var40 /* : Bool */;
+short int var42 /* : Bool */;
+short int var44 /* : Bool */;
+short int var45 /* : Bool */;
+int cltype46;
+int idtype47;
+const char* var_class_name48;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val; /* _n_kwwith on <self:AWithExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3871);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwith");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3395);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwwith> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwwith> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -5419,9 +4465,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa TKwwith */
+cltype = type_nitc__TKwwith.color;
+idtype = type_nitc__TKwwith.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -5433,27 +4479,30 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3872);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwwith", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3396);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AEqExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AEqExpr#n_expr= on <self:AEqExpr>*/
+nitc__parser_prod___AWithExpr___n_kwwith_61d(self, var_new_child); /* Direct call parser_prod$AWithExpr$n_kwwith= on <self:AWithExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AEqExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
 if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3875);
+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_prod, 3399);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -5466,9 +4515,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TEq */
-cltype14 = type_nitc__TEq.color;
-idtype15 = type_nitc__TEq.id;
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype14 = type_nitc__AExpr.color;
+idtype15 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -5480,223 +4529,511 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TEq", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3876);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3400);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AWithExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AWithExpr$n_expr= on <self:AWithExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var17 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val; /* _n_kwdo on <self:AWithExpr> */
+if (unlikely(var17 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3403);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:TKwdo> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:TKwdo> */
+var22 = var17 == var_other;
+var20 = var22;
+goto RET_LABEL21;
+RET_LABEL21:(void)0;
+}
+}
+var18 = var20;
+goto RET_LABEL19;
+RET_LABEL19:(void)0;
+}
+}
+if (var18){
+/* <var_new_child:nullable ANode> isa TKwdo */
+cltype24 = type_nitc__TKwdo.color;
+idtype25 = type_nitc__TKwdo.id;
+if(var_new_child == NULL) {
+var23 = 0;
+} else {
+if(cltype24 >= var_new_child->type->table_size) {
+var23 = 0;
+} else {
+var23 = var_new_child->type->type_table[cltype24] == idtype25;
+}
+}
+if (unlikely(!var23)) {
+var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwdo", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3404);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AWithExpr___n_kwdo_61d(self, var_new_child); /* Direct call parser_prod$AWithExpr$n_kwdo= on <self:AWithExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var27 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+if (var27 == NULL) {
+var28 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var27,var_old_child) on <var27:nullable AExpr> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var27,var_other) on <var27:nullable AExpr(AExpr)> */
+var33 = var27 == var_other;
+var31 = var33;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
+}
+}
+var29 = var31;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
+}
+var28 = var29;
+}
+if (var28){
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype35 = type_nullable__nitc__AExpr.color;
+idtype36 = type_nullable__nitc__AExpr.id;
+if(var_new_child == NULL) {
+var34 = 1;
+} else {
+if(cltype35 >= var_new_child->type->table_size) {
+var34 = 0;
+} else {
+var34 = var_new_child->type->type_table[cltype35] == idtype36;
+}
+}
+if (unlikely(!var34)) {
+var_class_name37 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name37);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3408);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AEqExpr#n_op= on <self:AEqExpr>*/
+nitc__parser_prod___AWithExpr___n_block_61d(self, var_new_child); /* Direct call parser_prod$AWithExpr$n_block= on <self:AWithExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AEqExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3879);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+var38 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWithExpr> */
+if (var38 == NULL) {
+var39 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var38,var_old_child) on <var38:nullable ALabel> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var38,var_other) on <var38:nullable ALabel(ALabel)> */
+var44 = var38 == var_other;
+var42 = var44;
+goto RET_LABEL43;
+RET_LABEL43:(void)0;
 }
 }
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
+var39 = var40;
 }
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
+if (var39){
+/* <var_new_child:nullable ANode> isa nullable ALabel */
+cltype46 = type_nullable__nitc__ALabel.color;
+idtype47 = type_nullable__nitc__ALabel.id;
 if(var_new_child == NULL) {
-var23 = 0;
+var45 = 1;
 } else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
+if(cltype46 >= var_new_child->type->table_size) {
+var45 = 0;
 } else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
+var45 = var_new_child->type->type_table[cltype46] == idtype47;
 }
 }
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3880);
+if (unlikely(!var45)) {
+var_class_name48 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable ALabel", var_class_name48);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3412);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AEqExpr#n_expr2= on <self:AEqExpr>*/
+nitc__parser_prod___AWithExpr___nitc__parser_nodes__ALabelable__n_label_61d(self, var_new_child); /* Direct call parser_prod$AWithExpr$n_label= on <self:AWithExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#n_expr= for (self: AEqExpr, AExpr) */
-void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AWithExpr$n_kwwith= for (self: AWithExpr, TKwwith) */
+void nitc__parser_prod___AWithExpr___n_kwwith_61d(val* self, val* p0) {
+val* var_node /* var node: TKwwith */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val = var_node; /* _n_kwwith on <self:AWithExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwwith> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwwith> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AWithExpr$n_expr= for (self: AWithExpr, AExpr) */
+void nitc__parser_prod___AWithExpr___n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AEqExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val = var_node; /* _n_expr on <self:AWithExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#n_op= for (self: AEqExpr, Token) */
-void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
+/* method parser_prod$AWithExpr$n_kwdo= for (self: AWithExpr, TKwdo) */
+void nitc__parser_prod___AWithExpr___n_kwdo_61d(val* self, val* p0) {
+val* var_node /* var node: TKwdo */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AEqExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val = var_node; /* _n_kwdo on <self:AWithExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwdo> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwdo> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#n_expr2= for (self: AEqExpr, AExpr) */
-void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
+/* method parser_prod$AWithExpr$n_block= for (self: AWithExpr, nullable AExpr) */
+void nitc__parser_prod___AWithExpr___n_block_61d(val* self, val* p0) {
+val* var_node /* var node: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AEqExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val = var_node; /* _n_block on <self:AWithExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
 }
 }
+} else {
+}
 RET_LABEL:;
 }
-/* method parser_prod#AEqExpr#visit_all for (self: AEqExpr, Visitor) */
-void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AWithExpr$n_label= for (self: AWithExpr, nullable ALabel) */
+void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ALabelable__n_label_61d(val* self, val* p0) {
+val* var_node /* var node: nullable ALabel */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val = var_node; /* _n_label on <self:AWithExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable ALabel> */
+var_other = ((val*)NULL);
+{
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable ALabel(ALabel)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable ALabel(ALabel)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable ALabel(ALabel)> */
+RET_LABEL5:(void)0;
+}
+}
+} else {
+}
+RET_LABEL:;
+}
+/* method parser_prod$AWithExpr$visit_all for (self: AWithExpr, Visitor) */
+void nitc__parser_prod___AWithExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
+val* var /* : TKwwith */;
+val* var1 /* : AExpr */;
+val* var2 /* : TKwdo */;
+val* var3 /* : nullable AExpr */;
+val* var4 /* : nullable ALabel */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwwith].val; /* _n_kwwith on <self:AWithExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3904);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwwith");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3446);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AEqExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_expr].val; /* _n_expr on <self:AWithExpr> */
 if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3905);
+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_prod, 3447);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AEqExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_kwdo].val; /* _n_kwdo on <self:AWithExpr> */
 if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3906);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwdo");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3448);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var3 = self->attrs[COLOR_nitc__parser_nodes__AWithExpr___n_block].val; /* _n_block on <self:AWithExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var4 = self->attrs[COLOR_nitc__parser_nodes__ALabelable___n_label].val; /* _n_label on <self:AWithExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#init_aneexpr for (self: ANeExpr, nullable AExpr, nullable TNe, nullable AExpr) */
-void nitc__parser_prod___ANeExpr___init_aneexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AAssertExpr$init_aassertexpr for (self: AAssertExpr, nullable TKwassert, nullable TId, nullable AExpr, nullable TKwelse, nullable AExpr) */
+void nitc__parser_prod___AAssertExpr___init_aassertexpr(val* self, val* p0, val* p1, val* p2, val* p3, val* p4) {
+val* var_n_kwassert /* var n_kwassert: nullable TKwassert */;
+val* var_n_id /* var n_id: nullable TId */;
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TNe */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
+val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
+val* var_n_else /* var n_else: nullable AExpr */;
+short int var /* : Bool */;
+short int var3 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var5 /* : Bool */;
+short int var6 /* : Bool */;
+short int var9 /* : Bool */;
+short int var10 /* : Bool */;
+short int var12 /* : Bool */;
+short int var13 /* : Bool */;
+short int var15 /* : Bool */;
+short int var16 /* : Bool */;
+short int var18 /* : Bool */;
+short int var19 /* : Bool */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ANeExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AAssertExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
+var_n_kwassert = p0;
+var_n_id = p1;
+var_n_expr = p2;
+var_n_kwelse = p3;
+var_n_else = p4;
+if (unlikely(var_n_kwassert == 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__parser_prod, 3916);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3462);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ANeExpr> */
-if (var_n_expr == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val = var_n_kwassert; /* _n_kwassert on <self:AAssertExpr> */
+if (var_n_kwassert == 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__parser_prod, 3917);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3463);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwassert,self) on <var_n_kwassert:nullable TKwassert> */
+if (unlikely(var_n_kwassert == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+var_n_kwassert->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwassert:nullable TKwassert> */
 RET_LABEL2:(void)0;
 }
 }
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3918);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ANeExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3919);
-fatal_exit(1);
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val = var_n_id; /* _n_id on <self:AAssertExpr> */
+if (var_n_id == NULL) {
+var = 0; /* is null */
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TNe> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
+var = 1; /* arg is null and recv is not */
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TNe> */
-RET_LABEL3:(void)0;
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_id,((val*)NULL)) on <var_n_id:nullable TId> */
+var_other = ((val*)NULL);
+{
+var5 = ((short int(*)(val* self, val* p0))(var_n_id->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_id, var_other); /* == on <var_n_id:nullable TId(TId)>*/
+}
+var6 = !var5;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
+}
+var = var3;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_id,self) on <var_n_id:nullable TId(TId)> */
+var_n_id->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_id:nullable TId(TId)> */
+RET_LABEL7:(void)0;
+}
+}
+} else {
 }
+if (unlikely(var_n_expr == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(var_n_expr2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3920);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3466);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ANeExpr> */
-if (var_n_expr2 == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AAssertExpr> */
+if (var_n_expr == 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__parser_prod, 3921);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3467);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+RET_LABEL8:(void)0;
+}
+}
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AAssertExpr> */
+if (var_n_kwelse == NULL) {
+var9 = 0; /* is null */
+} else {
+var9 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_kwelse,((val*)NULL)) on <var_n_kwelse:nullable TKwelse> */
+var_other = ((val*)NULL);
+{
+var12 = ((short int(*)(val* self, val* p0))(var_n_kwelse->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_kwelse, var_other); /* == on <var_n_kwelse:nullable TKwelse(TKwelse)>*/
+}
+var13 = !var12;
+var10 = var13;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
+}
+var9 = var10;
+}
+if (var9){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse(TKwelse)> */
+var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse(TKwelse)> */
+RET_LABEL14:(void)0;
+}
+}
+} else {
+}
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val = var_n_else; /* _n_else on <self:AAssertExpr> */
+if (var_n_else == NULL) {
+var15 = 0; /* is null */
+} else {
+var15 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_n_else,((val*)NULL)) on <var_n_else:nullable AExpr> */
+var_other = ((val*)NULL);
+{
+var18 = ((short int(*)(val* self, val* p0))(var_n_else->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_n_else, var_other); /* == on <var_n_else:nullable AExpr(AExpr)>*/
+}
+var19 = !var18;
+var16 = var19;
+goto RET_LABEL17;
+RET_LABEL17:(void)0;
+}
+var15 = var16;
+}
+if (var15){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_n_else,self) on <var_n_else:nullable AExpr(AExpr)> */
+var_n_else->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_else:nullable AExpr(AExpr)> */
+RET_LABEL20:(void)0;
+}
 }
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#replace_child for (self: ANeExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AAssertExpr$replace_child for (self: AAssertExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AAssertExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
+val* var /* : TKwassert */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -5705,35 +5042,57 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : Token */;
+val* var7 /* : nullable TId */;
 short int var8 /* : Bool */;
-short int var10 /* : Bool */;
-short int var12 /* : Bool */;
+short int var9 /* : Bool */;
+short int var11 /* : Bool */;
 short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+val* var18 /* : AExpr */;
+short int var19 /* : Bool */;
+short int var21 /* : Bool */;
 short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
+const char* var_class_name27;
+val* var28 /* : nullable TKwelse */;
+short int var29 /* : Bool */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
+short int var34 /* : Bool */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+const char* var_class_name38;
+val* var39 /* : nullable AExpr */;
+short int var40 /* : Bool */;
+short int var41 /* : Bool */;
+short int var43 /* : Bool */;
+short int var45 /* : Bool */;
+short int var46 /* : Bool */;
+int cltype47;
+int idtype48;
+const char* var_class_name49;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ANeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val; /* _n_kwassert on <self:AAssertExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3926);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwassert");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3476);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwassert> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwassert> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -5746,9 +5105,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa TKwassert */
+cltype = type_nitc__TKwassert.color;
+idtype = type_nitc__TKwassert.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -5760,270 +5119,471 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3927);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwassert", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3477);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AAssertExpr___n_kwassert_61d(self, var_new_child); /* Direct call parser_prod$AAssertExpr$n_kwassert= on <self:AAssertExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var7 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val; /* _n_id on <self:AAssertExpr> */
+if (var7 == NULL) {
+var8 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:nullable TId> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:nullable TId(TId)> */
+var13 = var7 == var_other;
+var11 = var13;
+goto RET_LABEL12;
+RET_LABEL12:(void)0;
+}
+}
+var9 = var11;
+goto RET_LABEL10;
+RET_LABEL10:(void)0;
+}
+var8 = var9;
+}
+if (var8){
+/* <var_new_child:nullable ANode> isa nullable TId */
+cltype15 = type_nullable__nitc__TId.color;
+idtype16 = type_nullable__nitc__TId.id;
+if(var_new_child == NULL) {
+var14 = 1;
+} else {
+if(cltype15 >= var_new_child->type->table_size) {
+var14 = 0;
+} else {
+var14 = var_new_child->type->type_table[cltype15] == idtype16;
+}
+}
+if (unlikely(!var14)) {
+var_class_name17 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TId", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3481);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AAssertExpr___n_id_61d(self, var_new_child); /* Direct call parser_prod$AAssertExpr$n_id= on <self:AAssertExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var18 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
+if (unlikely(var18 == 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_prod, 3484);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var18,var_old_child) on <var18:AExpr> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var18,var_other) on <var18:AExpr> */
+var23 = var18 == var_other;
+var21 = var23;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
+}
+}
+var19 = var21;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
+}
+}
+if (var19){
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype25 = type_nitc__AExpr.color;
+idtype26 = type_nitc__AExpr.id;
+if(var_new_child == NULL) {
+var24 = 0;
+} else {
+if(cltype25 >= var_new_child->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_new_child->type->type_table[cltype25] == idtype26;
+}
+}
+if (unlikely(!var24)) {
+var_class_name27 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name27);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3485);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AAssertExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AAssertExpr$n_expr= on <self:AAssertExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var28 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val; /* _n_kwelse on <self:AAssertExpr> */
+if (var28 == NULL) {
+var29 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var28,var_old_child) on <var28:nullable TKwelse> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var28,var_other) on <var28:nullable TKwelse(TKwelse)> */
+var34 = var28 == var_other;
+var32 = var34;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
+}
+}
+var30 = var32;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
+}
+var29 = var30;
+}
+if (var29){
+/* <var_new_child:nullable ANode> isa nullable TKwelse */
+cltype36 = type_nullable__nitc__TKwelse.color;
+idtype37 = type_nullable__nitc__TKwelse.id;
+if(var_new_child == NULL) {
+var35 = 1;
+} else {
+if(cltype36 >= var_new_child->type->table_size) {
+var35 = 0;
+} else {
+var35 = var_new_child->type->type_table[cltype36] == idtype37;
+}
+}
+if (unlikely(!var35)) {
+var_class_name38 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable TKwelse", var_class_name38);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3489);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ANeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#ANeExpr#n_expr= on <self:ANeExpr>*/
+nitc__parser_prod___AAssertExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod$AAssertExpr$n_kwelse= on <self:AAssertExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ANeExpr> */
-if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3930);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+var39 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
+if (var39 == NULL) {
+var40 = 0; /* <var_old_child:ANode> cannot be null */
+} else {
+{ /* Inline kernel$Object$== (var39,var_old_child) on <var39:nullable AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
-var12 = var7 == var_other;
-var10 = var12;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
+{ /* Inline kernel$Object$is_same_instance (var39,var_other) on <var39:nullable AExpr(AExpr)> */
+var45 = var39 == var_other;
+var43 = var45;
+goto RET_LABEL44;
+RET_LABEL44:(void)0;
 }
 }
-var8 = var10;
-goto RET_LABEL9;
-RET_LABEL9:(void)0;
+var41 = var43;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
+var40 = var41;
 }
-if (var8){
-/* <var_new_child:nullable ANode> isa TNe */
-cltype14 = type_nitc__TNe.color;
-idtype15 = type_nitc__TNe.id;
+if (var40){
+/* <var_new_child:nullable ANode> isa nullable AExpr */
+cltype47 = type_nullable__nitc__AExpr.color;
+idtype48 = type_nullable__nitc__AExpr.id;
 if(var_new_child == NULL) {
-var13 = 0;
+var46 = 1;
 } else {
-if(cltype14 >= var_new_child->type->table_size) {
-var13 = 0;
+if(cltype47 >= var_new_child->type->table_size) {
+var46 = 0;
 } else {
-var13 = var_new_child->type->type_table[cltype14] == idtype15;
+var46 = var_new_child->type->type_table[cltype47] == idtype48;
 }
 }
-if (unlikely(!var13)) {
-var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TNe", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3931);
+if (unlikely(!var46)) {
+var_class_name49 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "nullable AExpr", var_class_name49);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3493);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#ANeExpr#n_op= on <self:ANeExpr>*/
+nitc__parser_prod___AAssertExpr___n_else_61d(self, var_new_child); /* Direct call parser_prod$AAssertExpr$n_else= on <self:AAssertExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ANeExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3934);
-fatal_exit(1);
+RET_LABEL:;
 }
+/* method parser_prod$AAssertExpr$n_kwassert= for (self: AAssertExpr, TKwassert) */
+void nitc__parser_prod___AAssertExpr___n_kwassert_61d(val* self, val* p0) {
+val* var_node /* var node: TKwassert */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val = var_node; /* _n_kwassert on <self:AAssertExpr> */
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwassert> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwassert> */
+RET_LABEL1:(void)0;
 }
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
 }
+RET_LABEL:;
 }
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
+/* method parser_prod$AAssertExpr$n_id= for (self: AAssertExpr, nullable TId) */
+void nitc__parser_prod___AAssertExpr___n_id_61d(val* self, val* p0) {
+val* var_node /* var node: nullable TId */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val = var_node; /* _n_id on <self:AAssertExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
 } else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable TId> */
+var_other = ((val*)NULL);
+{
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TId(TId)>*/
 }
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3935);
-fatal_exit(1);
+var = var1;
 }
+if (var){
 {
-nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#ANeExpr#n_expr2= on <self:ANeExpr>*/
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable TId(TId)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TId(TId)> */
+RET_LABEL5:(void)0;
+}
 }
-goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#n_expr= for (self: ANeExpr, AExpr) */
-void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AAssertExpr$n_expr= for (self: AAssertExpr, AExpr) */
+void nitc__parser_prod___AAssertExpr___n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ANeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val = var_node; /* _n_expr on <self:AAssertExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#n_op= for (self: ANeExpr, Token) */
-void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
+/* method parser_prod$AAssertExpr$n_kwelse= for (self: AAssertExpr, nullable TKwelse) */
+void nitc__parser_prod___AAssertExpr___n_kwelse_61d(val* self, val* p0) {
+val* var_node /* var node: nullable TKwelse */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ANeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AAssertExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable TKwelse> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable TKwelse(TKwelse)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
 }
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable TKwelse(TKwelse)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable TKwelse(TKwelse)> */
+RET_LABEL5:(void)0;
+}
+}
+} else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#n_expr2= for (self: ANeExpr, AExpr) */
-void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
+/* method parser_prod$AAssertExpr$n_else= for (self: AAssertExpr, nullable AExpr) */
+void nitc__parser_prod___AAssertExpr___n_else_61d(val* self, val* p0) {
+val* var_node /* var node: nullable AExpr */;
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var3 /* : Bool */;
+short int var4 /* : Bool */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ANeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val = var_node; /* _n_else on <self:AAssertExpr> */
+if (var_node == NULL) {
+var = 0; /* is null */
+} else {
+var = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_node,((val*)NULL)) on <var_node:nullable AExpr> */
+var_other = ((val*)NULL);
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
+var3 = ((short int(*)(val* self, val* p0))(var_node->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_node, var_other); /* == on <var_node:nullable AExpr(AExpr)>*/
+}
+var4 = !var3;
+var1 = var4;
+goto RET_LABEL2;
+RET_LABEL2:(void)0;
+}
+var = var1;
+}
+if (var){
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:nullable AExpr(AExpr)> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:nullable AExpr(AExpr)> */
+RET_LABEL5:(void)0;
 }
 }
+} else {
+}
 RET_LABEL:;
 }
-/* method parser_prod#ANeExpr#visit_all for (self: ANeExpr, Visitor) */
-void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AAssertExpr$visit_all for (self: AAssertExpr, Visitor) */
+void nitc__parser_prod___AAssertExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
+val* var /* : TKwassert */;
+val* var1 /* : nullable TId */;
 val* var2 /* : AExpr */;
+val* var3 /* : nullable TKwelse */;
+val* var4 /* : nullable AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ANeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwassert].val; /* _n_kwassert on <self:AAssertExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3959);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwassert");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3527);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ANeExpr> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3960);
-fatal_exit(1);
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
+var1 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_id].val; /* _n_id on <self:AAssertExpr> */
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ANeExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_expr].val; /* _n_expr on <self:AAssertExpr> */
 if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3961);
+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_prod, 3529);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var3 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_kwelse].val; /* _n_kwelse on <self:AAssertExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var4 = self->attrs[COLOR_nitc__parser_nodes__AAssertExpr___n_else].val; /* _n_else on <self:AAssertExpr> */
+{
+nitc___nitc__Visitor___enter_visit(var_v, var4); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALtExpr#init_altexpr for (self: ALtExpr, nullable AExpr, nullable TLt, nullable AExpr) */
-void nitc__parser_prod___ALtExpr___init_altexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AOnceExpr$init_aonceexpr for (self: AOnceExpr, nullable TKwonce, nullable AExpr) */
+void nitc__parser_prod___AOnceExpr___init_aonceexpr(val* self, val* p0, val* p1) {
+val* var_n_kwonce /* var n_kwonce: nullable TKwonce */;
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TLt */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ALtExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AOnceExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3971);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALtExpr> */
-if (var_n_expr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3972);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
-RET_LABEL2:(void)0;
-}
+var_n_kwonce = p0;
+var_n_expr = p1;
+if (unlikely(var_n_kwonce == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(var_n_op == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3973);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3540);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALtExpr> */
-if (var_n_op == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val = var_n_kwonce; /* _n_kwonce on <self:AOnceExpr> */
+if (var_n_kwonce == 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__parser_prod, 3974);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3541);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TLt> */
-if (unlikely(var_n_op == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwonce,self) on <var_n_kwonce:nullable TKwonce> */
+if (unlikely(var_n_kwonce == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLt> */
-RET_LABEL3:(void)0;
+var_n_kwonce->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwonce:nullable TKwonce> */
+RET_LABEL2:(void)0;
 }
 }
-if (unlikely(var_n_expr2 == NULL)) {
+if (unlikely(var_n_expr == 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__parser_prod, 3975);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3542);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALtExpr> */
-if (var_n_expr2 == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOnceExpr> */
+if (var_n_expr == 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__parser_prod, 3976);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3543);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+RET_LABEL3:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALtExpr#replace_child for (self: ALtExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AOnceExpr$replace_child for (self: AOnceExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AOnceExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
+val* var /* : TKwonce */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -6032,7 +5592,7 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : Token */;
+val* var7 /* : AExpr */;
 short int var8 /* : Bool */;
 short int var10 /* : Bool */;
 short int var12 /* : Bool */;
@@ -6040,27 +5600,22 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALtExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val; /* _n_kwonce on <self:AOnceExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3981);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwonce");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3548);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwonce> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwonce> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -6073,9 +5628,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa TKwonce */
+cltype = type_nitc__TKwonce.color;
+idtype = type_nitc__TKwonce.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -6087,27 +5642,30 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3982);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwonce", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3549);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#ALtExpr#n_expr= on <self:ALtExpr>*/
+nitc__parser_prod___AOnceExpr___n_kwonce_61d(self, var_new_child); /* Direct call parser_prod$AOnceExpr$n_kwonce= on <self:AOnceExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALtExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
 if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3985);
+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_prod, 3552);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -6120,9 +5678,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TLt */
-cltype14 = type_nitc__TLt.color;
-idtype15 = type_nitc__TLt.id;
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype14 = type_nitc__AExpr.color;
+idtype15 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -6134,147 +5692,83 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLt", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3986);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#ALtExpr#n_op= on <self:ALtExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALtExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3989);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3990);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3553);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#ALtExpr#n_expr2= on <self:ALtExpr>*/
+nitc__parser_prod___AOnceExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$AOnceExpr$n_expr= on <self:AOnceExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALtExpr#n_expr= for (self: ALtExpr, AExpr) */
-void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALtExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#ALtExpr#n_op= for (self: ALtExpr, Token) */
-void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
+/* method parser_prod$AOnceExpr$n_kwonce= for (self: AOnceExpr, TKwonce) */
+void nitc__parser_prod___AOnceExpr___n_kwonce_61d(val* self, val* p0) {
+val* var_node /* var node: TKwonce */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val = var_node; /* _n_kwonce on <self:AOnceExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwonce> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwonce> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALtExpr#n_expr2= for (self: ALtExpr, AExpr) */
-void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AOnceExpr$n_expr= for (self: AOnceExpr, AExpr) */
+void nitc__parser_prod___AOnceExpr___n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val = var_node; /* _n_expr on <self:AOnceExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALtExpr#visit_all for (self: ALtExpr, Visitor) */
-void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AOnceExpr$visit_all for (self: AOnceExpr, Visitor) */
+void nitc__parser_prod___AOnceExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
+val* var /* : TKwonce */;
+val* var1 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALtExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_kwonce].val; /* _n_kwonce on <self:AOnceExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4014);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwonce");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3572);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALtExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__AOnceExpr___n_expr].val; /* _n_expr on <self:AOnceExpr> */
 if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4015);
-fatal_exit(1);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALtExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4016);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3573);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#init_aleexpr for (self: ALeExpr, nullable AExpr, nullable TLe, nullable AExpr) */
-void nitc__parser_prod___ALeExpr___init_aleexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AOrExpr$init_aorexpr for (self: AOrExpr, nullable AExpr, nullable TKwor, nullable AExpr) */
+void nitc__parser_prod___AOrExpr___init_aorexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TLe */;
+val* var_n_op /* var n_op: nullable TKwor */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ALeExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AOrExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -6282,20 +5776,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4026);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3654);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOrExpr> */
 if (var_n_expr == 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__parser_prod, 4027);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3655);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -6303,41 +5806,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4028);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3656);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AOrExpr> */
 if (var_n_op == 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__parser_prod, 4029);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3657);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TLe> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TKwor> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLe> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwor> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4030);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3658);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AOrExpr> */
 if (var_n_expr2 == 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__parser_prod, 4031);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3659);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -6346,8 +5867,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#replace_child for (self: ALeExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AOrExpr$replace_child for (self: AOrExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -6377,17 +5898,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
 if (unlikely(var == 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_prod, 4036);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3664);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -6415,26 +5939,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4037);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3665);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#ALeExpr#n_expr= on <self:ALeExpr>*/
+nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AOrExpr$n_expr= on <self:AOrExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALeExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4040);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3668);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -6447,9 +5974,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TLe */
-cltype14 = type_nitc__TLe.color;
-idtype15 = type_nitc__TLe.id;
+/* <var_new_child:nullable ANode> isa TKwor */
+cltype14 = type_nitc__TKwor.color;
+idtype15 = type_nitc__TKwor.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -6461,27 +5988,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLe", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4041);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwor", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3669);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#ALeExpr#n_op= on <self:ALeExpr>*/
+nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AOrExpr$n_op= on <self:AOrExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALeExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrExpr> */
 if (unlikely(var17 == 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_prod, 4044);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3672);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -6509,99 +6039,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4045);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3673);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#ALeExpr#n_expr2= on <self:ALeExpr>*/
+nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AOrExpr$n_expr2= on <self:AOrExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#n_expr= for (self: ALeExpr, AExpr) */
-void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AOrExpr$n_expr= for (self: AOrExpr, AExpr) */
+void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AOrExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#n_op= for (self: ALeExpr, Token) */
-void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$AOrExpr$n_op= for (self: AOrExpr, Token) */
+void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AOrExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#n_expr2= for (self: ALeExpr, AExpr) */
-void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AOrExpr$n_expr2= for (self: AOrExpr, AExpr) */
+void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AOrExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALeExpr#visit_all for (self: ALeExpr, Visitor) */
-void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AOrExpr$visit_all for (self: AOrExpr, Visitor) */
+void nitc__parser_prod___AOrExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrExpr> */
 if (unlikely(var == 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_prod, 4069);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3697);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALeExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4070);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3698);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALeExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 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_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4071);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3699);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#init_allexpr for (self: ALlExpr, nullable AExpr, nullable TLl, nullable AExpr) */
-void nitc__parser_prod___ALlExpr___init_allexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AAndExpr$init_aandexpr for (self: AAndExpr, nullable AExpr, nullable TKwand, nullable AExpr) */
+void nitc__parser_prod___AAndExpr___init_aandexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TLl */;
+val* var_n_op /* var n_op: nullable TKwand */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ALlExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AAndExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -6609,20 +6148,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4081);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3709);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AAndExpr> */
 if (var_n_expr == 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__parser_prod, 4082);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3710);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -6630,41 +6178,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4083);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3711);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AAndExpr> */
 if (var_n_op == 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__parser_prod, 4084);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3712);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TLl> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TKwand> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLl> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwand> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4085);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3713);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AAndExpr> */
 if (var_n_expr2 == 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__parser_prod, 4086);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3714);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -6673,8 +6239,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#replace_child for (self: ALlExpr, ANode, nullable ANode) */
-void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AAndExpr$replace_child for (self: AAndExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -6704,17 +6270,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALlExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
 if (unlikely(var == 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_prod, 4091);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3719);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -6742,26 +6311,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4092);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3720);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALlExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#ALlExpr#n_expr= on <self:ALlExpr>*/
+nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AAndExpr$n_expr= on <self:AAndExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALlExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AAndExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4095);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3723);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -6774,9 +6346,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TLl */
-cltype14 = type_nitc__TLl.color;
-idtype15 = type_nitc__TLl.id;
+/* <var_new_child:nullable ANode> isa TKwand */
+cltype14 = type_nitc__TKwand.color;
+idtype15 = type_nitc__TKwand.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -6788,27 +6360,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLl", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4096);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwand", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3724);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#ALlExpr#n_op= on <self:ALlExpr>*/
+nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AAndExpr$n_op= on <self:AAndExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALlExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AAndExpr> */
 if (unlikely(var17 == 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_prod, 4099);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3727);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -6836,120 +6411,140 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4100);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3728);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#ALlExpr#n_expr2= on <self:ALlExpr>*/
+nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AAndExpr$n_expr2= on <self:AAndExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#n_expr= for (self: ALlExpr, AExpr) */
-void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AAndExpr$n_expr= for (self: AAndExpr, AExpr) */
+void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AAndExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#n_op= for (self: ALlExpr, Token) */
-void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$AAndExpr$n_op= for (self: AAndExpr, Token) */
+void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AAndExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#n_expr2= for (self: ALlExpr, AExpr) */
-void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AAndExpr$n_expr2= for (self: AAndExpr, AExpr) */
+void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALlExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AAndExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#ALlExpr#visit_all for (self: ALlExpr, Visitor) */
-void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AAndExpr$visit_all for (self: AAndExpr, Visitor) */
+void nitc__parser_prod___AAndExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALlExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AAndExpr> */
 if (unlikely(var == 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_prod, 4124);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3752);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALlExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AAndExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4125);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3753);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALlExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 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_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4126);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3754);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#init_agtexpr for (self: AGtExpr, nullable AExpr, nullable TGt, nullable AExpr) */
-void nitc__parser_prod___AGtExpr___init_agtexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AOrElseExpr$init_aorelseexpr for (self: AOrElseExpr, nullable AExpr, nullable TKwor, nullable TKwelse, nullable AExpr) */
+void nitc__parser_prod___AOrElseExpr___init_aorelseexpr(val* self, val* p0, val* p1, val* p2, val* p3) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TGt */;
+val* var_n_op /* var n_op: nullable TKwor */;
+val* var_n_kwelse /* var n_kwelse: nullable TKwelse */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AGtExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AOrElseExpr> */
 RET_LABEL1:(void)0;
 }
 }
 var_n_expr = p0;
 var_n_op = p1;
-var_n_expr2 = p2;
+var_n_kwelse = p2;
+var_n_expr2 = p3;
 if (unlikely(var_n_expr == 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__parser_prod, 4136);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3765);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AOrElseExpr> */
 if (var_n_expr == 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__parser_prod, 4137);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3766);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -6957,51 +6552,99 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4138);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3767);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AOrElseExpr> */
 if (var_n_op == 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__parser_prod, 4139);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3768);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TGt> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TKwor> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TGt> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwor> */
 RET_LABEL3:(void)0;
 }
 }
+if (unlikely(var_n_kwelse == 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__parser_prod, 3769);
+fatal_exit(1);
+}
+self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val = var_n_kwelse; /* _n_kwelse on <self:AOrElseExpr> */
+if (var_n_kwelse == 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__parser_prod, 3770);
+fatal_exit(1);
+} else {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwelse,self) on <var_n_kwelse:nullable TKwelse> */
+if (unlikely(var_n_kwelse == 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__parser_nodes, 60);
+fatal_exit(1);
+}
+var_n_kwelse->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwelse:nullable TKwelse> */
+RET_LABEL4:(void)0;
+}
+}
 if (unlikely(var_n_expr2 == 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__parser_prod, 4140);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3771);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AOrElseExpr> */
 if (var_n_expr2 == 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__parser_prod, 4141);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3772);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
+RET_LABEL5:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#replace_child for (self: AGtExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AOrElseExpr$replace_child for (self: AOrElseExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -7021,7 +6664,7 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-val* var17 /* : AExpr */;
+val* var17 /* : TKwelse */;
 short int var18 /* : Bool */;
 short int var20 /* : Bool */;
 short int var22 /* : Bool */;
@@ -7029,19 +6672,30 @@ short int var23 /* : Bool */;
 int cltype24;
 int idtype25;
 const char* var_class_name26;
+val* var27 /* : AExpr */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+short int var32 /* : Bool */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGtExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
 if (unlikely(var == 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_prod, 4146);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3777);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -7069,26 +6723,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4147);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3778);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AGtExpr#n_expr= on <self:AGtExpr>*/
+nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AOrElseExpr$n_expr= on <self:AOrElseExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGtExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrElseExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4150);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3781);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -7101,9 +6758,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TGt */
-cltype14 = type_nitc__TGt.color;
-idtype15 = type_nitc__TGt.id;
+/* <var_new_child:nullable ANode> isa TKwor */
+cltype14 = type_nitc__TKwor.color;
+idtype15 = type_nitc__TKwor.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -7115,27 +6772,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TGt", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4151);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwor", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3782);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AGtExpr#n_op= on <self:AGtExpr>*/
+nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AOrElseExpr$n_op= on <self:AOrElseExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGtExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val; /* _n_kwelse on <self:AOrElseExpr> */
 if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4154);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwelse");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3785);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:TKwelse> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:TKwelse> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -7148,9 +6808,9 @@ RET_LABEL19:(void)0;
 }
 }
 if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa TKwelse */
+cltype24 = type_nitc__TKwelse.color;
+idtype25 = type_nitc__TKwelse.id;
 if(var_new_child == NULL) {
 var23 = 0;
 } else {
@@ -7162,100 +6822,185 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 }
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4155);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwelse", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3786);
+fatal_exit(1);
+}
+{
+nitc__parser_prod___AOrElseExpr___n_kwelse_61d(self, var_new_child); /* Direct call parser_prod$AOrElseExpr$n_kwelse= on <self:AOrElseExpr>*/
+}
+goto RET_LABEL;
+} else {
+}
+var27 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
+if (unlikely(var27 == 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_prod, 3789);
+fatal_exit(1);
+}
+{
+{ /* Inline kernel$Object$== (var27,var_old_child) on <var27:AExpr> */
+var_other = var_old_child;
+{
+{ /* Inline kernel$Object$is_same_instance (var27,var_other) on <var27:AExpr> */
+var32 = var27 == var_other;
+var30 = var32;
+goto RET_LABEL31;
+RET_LABEL31:(void)0;
+}
+}
+var28 = var30;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
+}
+}
+if (var28){
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype34 = type_nitc__AExpr.color;
+idtype35 = type_nitc__AExpr.id;
+if(var_new_child == NULL) {
+var33 = 0;
+} else {
+if(cltype34 >= var_new_child->type->table_size) {
+var33 = 0;
+} else {
+var33 = var_new_child->type->type_table[cltype34] == idtype35;
+}
+}
+if (unlikely(!var33)) {
+var_class_name36 = var_new_child == NULL ? "null" : var_new_child->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3790);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AGtExpr#n_expr2= on <self:AGtExpr>*/
+nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AOrElseExpr$n_expr2= on <self:AOrElseExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#n_expr= for (self: AGtExpr, AExpr) */
-void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AOrElseExpr$n_expr= for (self: AOrElseExpr, AExpr) */
+void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AOrElseExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#n_op= for (self: AGtExpr, Token) */
-void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$AOrElseExpr$n_op= for (self: AOrElseExpr, Token) */
+void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AOrElseExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#n_expr2= for (self: AGtExpr, AExpr) */
-void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AOrElseExpr$n_kwelse= for (self: AOrElseExpr, TKwelse) */
+void nitc__parser_prod___AOrElseExpr___n_kwelse_61d(val* self, val* p0) {
+val* var_node /* var node: TKwelse */;
+var_node = p0;
+self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val = var_node; /* _n_kwelse on <self:AOrElseExpr> */
+{
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwelse> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwelse> */
+RET_LABEL1:(void)0;
+}
+}
+RET_LABEL:;
+}
+/* method parser_prod$AOrElseExpr$n_expr2= for (self: AOrElseExpr, AExpr) */
+void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AGtExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AOrElseExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGtExpr#visit_all for (self: AGtExpr, Visitor) */
-void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AOrElseExpr$visit_all for (self: AOrElseExpr, Visitor) */
+void nitc__parser_prod___AOrElseExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
-val* var2 /* : AExpr */;
+val* var2 /* : TKwelse */;
+val* var3 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGtExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AOrElseExpr> */
 if (unlikely(var == 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_prod, 4179);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3819);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGtExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AOrElseExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4180);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3820);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGtExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__AOrElseExpr___n_kwelse].val; /* _n_kwelse 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_kwelse");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3821);
+fatal_exit(1);
+}
+{
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
+}
+var3 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AOrElseExpr> */
+if (unlikely(var3 == 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_prod, 4181);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3822);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var3); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#init_ageexpr for (self: AGeExpr, nullable AExpr, nullable TGe, nullable AExpr) */
-void nitc__parser_prod___AGeExpr___init_ageexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AImpliesExpr$init_aimpliesexpr for (self: AImpliesExpr, nullable AExpr, nullable TKwimplies, nullable AExpr) */
+void nitc__parser_prod___AImpliesExpr___init_aimpliesexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TGe */;
+val* var_n_op /* var n_op: nullable TKwimplies */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AGeExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AImpliesExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -7263,20 +7008,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4191);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3832);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AImpliesExpr> */
 if (var_n_expr == 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__parser_prod, 4192);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3833);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -7284,41 +7038,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4193);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3834);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_n_op; /* _n_op on <self:AImpliesExpr> */
 if (var_n_op == 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__parser_prod, 4194);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3835);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TGe> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TKwimplies> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TGe> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TKwimplies> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4195);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3836);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AImpliesExpr> */
 if (var_n_expr2 == 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__parser_prod, 4196);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3837);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -7327,8 +7099,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#replace_child for (self: AGeExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AGeExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AImpliesExpr$replace_child for (self: AImpliesExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -7358,17 +7130,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
 if (unlikely(var == 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_prod, 4201);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3842);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -7396,26 +7171,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4202);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3843);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AGeExpr#n_expr= on <self:AGeExpr>*/
+nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AImpliesExpr$n_expr= on <self:AImpliesExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGeExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AImpliesExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4205);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3846);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -7428,9 +7206,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TGe */
-cltype14 = type_nitc__TGe.color;
-idtype15 = type_nitc__TGe.id;
+/* <var_new_child:nullable ANode> isa TKwimplies */
+cltype14 = type_nitc__TKwimplies.color;
+idtype15 = type_nitc__TKwimplies.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -7442,27 +7220,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TGe", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4206);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwimplies", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3847);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AGeExpr#n_op= on <self:AGeExpr>*/
+nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AImpliesExpr$n_op= on <self:AImpliesExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGeExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 on <self:AImpliesExpr> */
 if (unlikely(var17 == 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_prod, 4209);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3850);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -7490,175 +7271,179 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4210);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3851);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AGeExpr#n_expr2= on <self:AGeExpr>*/
+nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AImpliesExpr$n_expr2= on <self:AImpliesExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#n_expr= for (self: AGeExpr, AExpr) */
-void nitc__parser_prod___AGeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AImpliesExpr$n_expr= for (self: AImpliesExpr, AExpr) */
+void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val = var_node; /* _n_expr on <self:AImpliesExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#n_op= for (self: AGeExpr, Token) */
-void nitc__parser_prod___AGeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$AImpliesExpr$n_op= for (self: AImpliesExpr, Token) */
+void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val = var_node; /* _n_op on <self:AImpliesExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#n_expr2= for (self: AGeExpr, AExpr) */
-void nitc__parser_prod___AGeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AImpliesExpr$n_expr2= for (self: AImpliesExpr, AExpr) */
+void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ABinBoolExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AGeExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AImpliesExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGeExpr#visit_all for (self: AGeExpr, Visitor) */
-void nitc__parser_prod___AGeExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AImpliesExpr$visit_all for (self: AImpliesExpr, Visitor) */
+void nitc__parser_prod___AImpliesExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGeExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr].val; /* _n_expr on <self:AImpliesExpr> */
 if (unlikely(var == 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_prod, 4234);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3875);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGeExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_op].val; /* _n_op on <self:AImpliesExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4235);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3876);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGeExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinBoolExpr___n_expr2].val; /* _n_expr2 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_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4236);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3877);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGgExpr#init_aggexpr for (self: AGgExpr, nullable AExpr, nullable TGg, nullable AExpr) */
-void nitc__parser_prod___AGgExpr___init_aggexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$ANotExpr$init_anotexpr for (self: ANotExpr, nullable TKwnot, nullable AExpr) */
+void nitc__parser_prod___ANotExpr___init_anotexpr(val* self, val* p0, val* p1) {
+val* var_n_kwnot /* var n_kwnot: nullable TKwnot */;
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TGg */;
-val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AGgExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ANotExpr> */
 RET_LABEL1:(void)0;
 }
 }
-var_n_expr = p0;
-var_n_op = p1;
-var_n_expr2 = p2;
-if (unlikely(var_n_expr == NULL)) {
+var_n_kwnot = p0;
+var_n_expr = p1;
+if (unlikely(var_n_kwnot == 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__parser_prod, 4246);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3886);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AGgExpr> */
-if (var_n_expr == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val = var_n_kwnot; /* _n_kwnot on <self:ANotExpr> */
+if (var_n_kwnot == 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__parser_prod, 4247);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3887);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
-if (unlikely(var_n_expr == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_kwnot,self) on <var_n_kwnot:nullable TKwnot> */
+if (unlikely(var_n_kwnot == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+var_n_kwnot->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwnot:nullable TKwnot> */
 RET_LABEL2:(void)0;
 }
 }
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4248);
-fatal_exit(1);
-}
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AGgExpr> */
-if (var_n_op == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4249);
-fatal_exit(1);
-} else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TGg> */
-if (unlikely(var_n_op == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 46);
-fatal_exit(1);
-}
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TGg> */
-RET_LABEL3:(void)0;
-}
+if (unlikely(var_n_expr == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(var_n_expr2 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4250);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3888);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AGgExpr> */
-if (var_n_expr2 == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ANotExpr> */
+if (var_n_expr == 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__parser_prod, 4251);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3889);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
-if (unlikely(var_n_expr2 == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
-RET_LABEL4:(void)0;
+var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
+RET_LABEL3:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGgExpr#replace_child for (self: AGgExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AGgExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ANotExpr$replace_child for (self: ANotExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ANotExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
-val* var /* : AExpr */;
+val* var /* : TKwnot */;
 short int var1 /* : Bool */;
 val* var_other /* var other: nullable Object */;
 short int var3 /* : Bool */;
@@ -7667,7 +7452,7 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : Token */;
+val* var7 /* : AExpr */;
 short int var8 /* : Bool */;
 short int var10 /* : Bool */;
 short int var12 /* : Bool */;
@@ -7675,27 +7460,22 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-val* var17 /* : AExpr */;
-short int var18 /* : Bool */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGgExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val; /* _n_kwnot on <self:ANotExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4256);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwnot");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3894);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:TKwnot> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:TKwnot> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -7708,9 +7488,9 @@ RET_LABEL2:(void)0;
 }
 }
 if (var1){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype = type_nitc__AExpr.color;
-idtype = type_nitc__AExpr.id;
+/* <var_new_child:nullable ANode> isa TKwnot */
+cltype = type_nitc__TKwnot.color;
+idtype = type_nitc__TKwnot.id;
 if(var_new_child == NULL) {
 var6 = 0;
 } else {
@@ -7722,27 +7502,30 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 }
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4257);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwnot", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3895);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGgExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AGgExpr#n_expr= on <self:AGgExpr>*/
+nitc__parser_prod___ANotExpr___n_kwnot_61d(self, var_new_child); /* Direct call parser_prod$ANotExpr$n_kwnot= on <self:ANotExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGgExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
 if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4260);
+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_prod, 3898);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:AExpr> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -7755,9 +7538,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TGg */
-cltype14 = type_nitc__TGg.color;
-idtype15 = type_nitc__TGg.id;
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype14 = type_nitc__AExpr.color;
+idtype15 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -7769,220 +7552,183 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TGg", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4261);
-fatal_exit(1);
-}
-{
-nitc__parser_prod___AGgExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AGgExpr#n_op= on <self:AGgExpr>*/
-}
-goto RET_LABEL;
-} else {
-}
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGgExpr> */
-if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4264);
-fatal_exit(1);
-}
-{
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
-var_other = var_old_child;
-{
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
-var22 = var17 == var_other;
-var20 = var22;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
-}
-}
-if (var18){
-/* <var_new_child:nullable ANode> isa AExpr */
-cltype24 = type_nitc__AExpr.color;
-idtype25 = type_nitc__AExpr.id;
-if(var_new_child == NULL) {
-var23 = 0;
-} else {
-if(cltype24 >= var_new_child->type->table_size) {
-var23 = 0;
-} else {
-var23 = var_new_child->type->type_table[cltype24] == idtype25;
-}
-}
-if (unlikely(!var23)) {
-var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4265);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3899);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AGgExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AGgExpr#n_expr2= on <self:AGgExpr>*/
+nitc__parser_prod___ANotExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod$ANotExpr$n_expr= on <self:ANotExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGgExpr#n_expr= for (self: AGgExpr, AExpr) */
-void nitc__parser_prod___AGgExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
-val* var_node /* var node: AExpr */;
-var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AGgExpr> */
-{
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
-RET_LABEL1:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method parser_prod#AGgExpr#n_op= for (self: AGgExpr, Token) */
-void nitc__parser_prod___AGgExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
-val* var_node /* var node: Token */;
+/* method parser_prod$ANotExpr$n_kwnot= for (self: ANotExpr, TKwnot) */
+void nitc__parser_prod___ANotExpr___n_kwnot_61d(val* self, val* p0) {
+val* var_node /* var node: TKwnot */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AGgExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val = var_node; /* _n_kwnot on <self:ANotExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:TKwnot> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwnot> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGgExpr#n_expr2= for (self: AGgExpr, AExpr) */
-void nitc__parser_prod___AGgExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$ANotExpr$n_expr= for (self: ANotExpr, AExpr) */
+void nitc__parser_prod___ANotExpr___n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AGgExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val = var_node; /* _n_expr on <self:ANotExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AGgExpr#visit_all for (self: AGgExpr, Visitor) */
-void nitc__parser_prod___AGgExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ANotExpr$visit_all for (self: ANotExpr, Visitor) */
+void nitc__parser_prod___ANotExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
-val* var /* : AExpr */;
-val* var1 /* : Token */;
-val* var2 /* : AExpr */;
+val* var /* : TKwnot */;
+val* var1 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGgExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_kwnot].val; /* _n_kwnot on <self:ANotExpr> */
 if (unlikely(var == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4289);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwnot");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3918);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGgExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ANotExpr___n_expr].val; /* _n_expr on <self:ANotExpr> */
 if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4290);
-fatal_exit(1);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
-}
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGgExpr> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr2");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4291);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_expr");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3919);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#init_aisaexpr for (self: AIsaExpr, nullable AExpr, nullable TKwisa, nullable AType) */
-void nitc__parser_prod___AIsaExpr___init_aisaexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AEqExpr$init_aeqexpr for (self: AEqExpr, nullable AExpr, nullable TEq, nullable AExpr) */
+void nitc__parser_prod___AEqExpr___init_aeqexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_kwisa /* var n_kwisa: nullable TKwisa */;
-val* var_n_type /* var n_type: nullable AType */;
+val* var_n_op /* var n_op: nullable TEq */;
+val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AIsaExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AEqExpr> */
 RET_LABEL1:(void)0;
 }
 }
 var_n_expr = p0;
-var_n_kwisa = p1;
-var_n_type = p2;
+var_n_op = p1;
+var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4301);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3929);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AEqExpr> */
 if (var_n_expr == 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__parser_prod, 4302);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3930);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
 RET_LABEL2:(void)0;
 }
 }
-if (unlikely(var_n_kwisa == NULL)) {
+if (unlikely(var_n_op == 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__parser_prod, 4303);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3931);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_kwisa].val = var_n_kwisa; /* _n_kwisa on <self:AIsaExpr> */
-if (var_n_kwisa == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AEqExpr> */
+if (var_n_op == 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__parser_prod, 4304);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3932);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_kwisa,self) on <var_n_kwisa:nullable TKwisa> */
-if (unlikely(var_n_kwisa == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TEq> */
+if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_kwisa->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_kwisa:nullable TKwisa> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TEq> */
 RET_LABEL3:(void)0;
 }
 }
-if (unlikely(var_n_type == NULL)) {
+if (unlikely(var_n_expr2 == 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__parser_prod, 4305);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3933);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val = var_n_type; /* _n_type on <self:AIsaExpr> */
-if (var_n_type == NULL) {
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AEqExpr> */
+if (var_n_expr2 == 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__parser_prod, 4306);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3934);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_type,self) on <var_n_type:nullable AType> */
-if (unlikely(var_n_type == NULL)) {
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_type->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_type:nullable AType> */
+var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
 RET_LABEL4:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#replace_child for (self: AIsaExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AIsaExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AEqExpr$replace_child for (self: AEqExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -7994,7 +7740,7 @@ short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-val* var7 /* : TKwisa */;
+val* var7 /* : Token */;
 short int var8 /* : Bool */;
 short int var10 /* : Bool */;
 short int var12 /* : Bool */;
@@ -8002,7 +7748,7 @@ short int var13 /* : Bool */;
 int cltype14;
 int idtype15;
 const char* var_class_name16;
-val* var17 /* : AType */;
+val* var17 /* : AExpr */;
 short int var18 /* : Bool */;
 short int var20 /* : Bool */;
 short int var22 /* : Bool */;
@@ -8012,17 +7758,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqExpr> */
 if (unlikely(var == 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_prod, 4311);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3939);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -8050,26 +7799,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4312);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3940);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIsaExpr___n_expr_61d(self, var_new_child); /* Direct call parser_prod#AIsaExpr#n_expr= on <self:AIsaExpr>*/
+nitc__parser_prod___AEqExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AEqExpr$n_expr= on <self:AEqExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_kwisa].val; /* _n_kwisa on <self:AIsaExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AEqExpr> */
 if (unlikely(var7 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwisa");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4315);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3943);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:TKwisa> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:TKwisa> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -8082,9 +7834,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TKwisa */
-cltype14 = type_nitc__TKwisa.color;
-idtype15 = type_nitc__TKwisa.id;
+/* <var_new_child:nullable ANode> isa TEq */
+cltype14 = type_nitc__TEq.color;
+idtype15 = type_nitc__TEq.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -8096,27 +7848,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TKwisa", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4316);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TEq", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3944);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIsaExpr___n_kwisa_61d(self, var_new_child); /* Direct call parser_prod#AIsaExpr#n_kwisa= on <self:AIsaExpr>*/
+nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AEqExpr$n_op= on <self:AEqExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AEqExpr> */
 if (unlikely(var17 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4319);
+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_prod, 3947);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AType> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AType> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -8129,9 +7884,9 @@ RET_LABEL19:(void)0;
 }
 }
 if (var18){
-/* <var_new_child:nullable ANode> isa AType */
-cltype24 = type_nitc__AType.color;
-idtype25 = type_nitc__AType.id;
+/* <var_new_child:nullable ANode> isa AExpr */
+cltype24 = type_nitc__AExpr.color;
+idtype25 = type_nitc__AExpr.id;
 if(var_new_child == NULL) {
 var23 = 0;
 } else {
@@ -8143,100 +7898,109 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 }
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AType", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4320);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3948);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AIsaExpr___n_type_61d(self, var_new_child); /* Direct call parser_prod#AIsaExpr#n_type= on <self:AIsaExpr>*/
+nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AEqExpr$n_expr2= on <self:AEqExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#n_expr= for (self: AIsaExpr, AExpr) */
-void nitc__parser_prod___AIsaExpr___n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AEqExpr$n_expr= for (self: AEqExpr, AExpr) */
+void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val = var_node; /* _n_expr on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AEqExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#n_kwisa= for (self: AIsaExpr, TKwisa) */
-void nitc__parser_prod___AIsaExpr___n_kwisa_61d(val* self, val* p0) {
-val* var_node /* var node: TKwisa */;
+/* method parser_prod$AEqExpr$n_op= for (self: AEqExpr, Token) */
+void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_kwisa].val = var_node; /* _n_kwisa on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AEqExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:TKwisa> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:TKwisa> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#n_type= for (self: AIsaExpr, AType) */
-void nitc__parser_prod___AIsaExpr___n_type_61d(val* self, val* p0) {
-val* var_node /* var node: AType */;
+/* method parser_prod$AEqExpr$n_expr2= for (self: AEqExpr, AExpr) */
+void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val = var_node; /* _n_type on <self:AIsaExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AEqExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AType> */
-var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AType> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
+var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AIsaExpr#visit_all for (self: AIsaExpr, Visitor) */
-void nitc__parser_prod___AIsaExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AEqExpr$visit_all for (self: AEqExpr, Visitor) */
+void nitc__parser_prod___AEqExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
-val* var1 /* : TKwisa */;
-val* var2 /* : AType */;
+val* var1 /* : Token */;
+val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_expr].val; /* _n_expr on <self:AIsaExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AEqExpr> */
 if (unlikely(var == 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_prod, 4344);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3972);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_kwisa].val; /* _n_kwisa on <self:AIsaExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AEqExpr> */
 if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_kwisa");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4345);
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3973);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__AIsaExpr___n_type].val; /* _n_type on <self:AIsaExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AEqExpr> */
 if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_type");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4346);
+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_prod, 3974);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#init_aplusexpr for (self: APlusExpr, nullable AExpr, nullable TPlus, nullable AExpr) */
-void nitc__parser_prod___APlusExpr___init_aplusexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$ANeExpr$init_aneexpr for (self: ANeExpr, nullable AExpr, nullable TNe, nullable AExpr) */
+void nitc__parser_prod___ANeExpr___init_aneexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TPlus */;
+val* var_n_op /* var n_op: nullable TNe */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:APlusExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ANeExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -8244,20 +8008,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4356);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3984);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ANeExpr> */
 if (var_n_expr == 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__parser_prod, 4357);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3985);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -8265,41 +8038,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4358);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3986);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ANeExpr> */
 if (var_n_op == 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__parser_prod, 4359);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3987);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TPlus> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TNe> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TPlus> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TNe> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4360);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3988);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ANeExpr> */
 if (var_n_expr2 == 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__parser_prod, 4361);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3989);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -8308,8 +8099,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#replace_child for (self: APlusExpr, ANode, nullable ANode) */
-void nitc__parser_prod___APlusExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ANeExpr$replace_child for (self: ANeExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -8339,17 +8130,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:APlusExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ANeExpr> */
 if (unlikely(var == 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_prod, 4366);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3994);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -8377,26 +8171,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4367);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3995);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___APlusExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#APlusExpr#n_expr= on <self:APlusExpr>*/
+nitc__parser_prod___ANeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$ANeExpr$n_expr= on <self:ANeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:APlusExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ANeExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4370);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3998);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -8409,9 +8206,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TPlus */
-cltype14 = type_nitc__TPlus.color;
-idtype15 = type_nitc__TPlus.id;
+/* <var_new_child:nullable ANode> isa TNe */
+cltype14 = type_nitc__TNe.color;
+idtype15 = type_nitc__TNe.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -8423,27 +8220,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TPlus", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4371);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TNe", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 3999);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___APlusExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#APlusExpr#n_op= on <self:APlusExpr>*/
+nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$ANeExpr$n_op= on <self:ANeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:APlusExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ANeExpr> */
 if (unlikely(var17 == 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_prod, 4374);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4002);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -8471,99 +8271,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4375);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4003);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___APlusExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#APlusExpr#n_expr2= on <self:APlusExpr>*/
+nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$ANeExpr$n_expr2= on <self:ANeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#n_expr= for (self: APlusExpr, AExpr) */
-void nitc__parser_prod___APlusExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$ANeExpr$n_expr= for (self: ANeExpr, AExpr) */
+void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ANeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#n_op= for (self: APlusExpr, Token) */
-void nitc__parser_prod___APlusExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$ANeExpr$n_op= for (self: ANeExpr, Token) */
+void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ANeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#n_expr2= for (self: APlusExpr, AExpr) */
-void nitc__parser_prod___APlusExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$ANeExpr$n_expr2= for (self: ANeExpr, AExpr) */
+void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:APlusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ANeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#APlusExpr#visit_all for (self: APlusExpr, Visitor) */
-void nitc__parser_prod___APlusExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ANeExpr$visit_all for (self: ANeExpr, Visitor) */
+void nitc__parser_prod___ANeExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:APlusExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ANeExpr> */
 if (unlikely(var == 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_prod, 4399);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4027);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:APlusExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ANeExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4400);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4028);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:APlusExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ANeExpr> */
 if (unlikely(var2 == 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_prod, 4401);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4029);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#init_aminusexpr for (self: AMinusExpr, nullable AExpr, nullable TMinus, nullable AExpr) */
-void nitc__parser_prod___AMinusExpr___init_aminusexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$ALtExpr$init_altexpr for (self: ALtExpr, nullable AExpr, nullable TLt, nullable AExpr) */
+void nitc__parser_prod___ALtExpr___init_altexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TMinus */;
+val* var_n_op /* var n_op: nullable TLt */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AMinusExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ALtExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -8571,20 +8380,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4411);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4039);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALtExpr> */
 if (var_n_expr == 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__parser_prod, 4412);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4040);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -8592,41 +8410,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4413);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4041);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALtExpr> */
 if (var_n_op == 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__parser_prod, 4414);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4042);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TMinus> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TLt> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TMinus> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLt> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4415);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4043);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALtExpr> */
 if (var_n_expr2 == 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__parser_prod, 4416);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4044);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -8635,8 +8471,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#replace_child for (self: AMinusExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ALtExpr$replace_child for (self: ALtExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -8666,17 +8502,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AMinusExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALtExpr> */
 if (unlikely(var == 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_prod, 4421);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4049);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -8704,26 +8543,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4422);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4050);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AMinusExpr#n_expr= on <self:AMinusExpr>*/
+nitc__parser_prod___ALtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$ALtExpr$n_expr= on <self:ALtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AMinusExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALtExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4425);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4053);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -8736,9 +8578,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TMinus */
-cltype14 = type_nitc__TMinus.color;
-idtype15 = type_nitc__TMinus.id;
+/* <var_new_child:nullable ANode> isa TLt */
+cltype14 = type_nitc__TLt.color;
+idtype15 = type_nitc__TLt.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -8750,27 +8592,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TMinus", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4426);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLt", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4054);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AMinusExpr#n_op= on <self:AMinusExpr>*/
+nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$ALtExpr$n_op= on <self:ALtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AMinusExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALtExpr> */
 if (unlikely(var17 == 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_prod, 4429);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4057);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -8798,99 +8643,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4430);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4058);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AMinusExpr#n_expr2= on <self:AMinusExpr>*/
+nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$ALtExpr$n_expr2= on <self:ALtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#n_expr= for (self: AMinusExpr, AExpr) */
-void nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$ALtExpr$n_expr= for (self: ALtExpr, AExpr) */
+void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#n_op= for (self: AMinusExpr, Token) */
-void nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$ALtExpr$n_op= for (self: ALtExpr, Token) */
+void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#n_expr2= for (self: AMinusExpr, AExpr) */
-void nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$ALtExpr$n_expr2= for (self: ALtExpr, AExpr) */
+void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AMinusExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AMinusExpr#visit_all for (self: AMinusExpr, Visitor) */
-void nitc__parser_prod___AMinusExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ALtExpr$visit_all for (self: ALtExpr, Visitor) */
+void nitc__parser_prod___ALtExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AMinusExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALtExpr> */
 if (unlikely(var == 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_prod, 4454);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4082);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AMinusExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALtExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4455);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4083);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AMinusExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALtExpr> */
 if (unlikely(var2 == 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_prod, 4456);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4084);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#init_astarshipexpr for (self: AStarshipExpr, nullable AExpr, nullable TStarship, nullable AExpr) */
-void nitc__parser_prod___AStarshipExpr___init_astarshipexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$ALeExpr$init_aleexpr for (self: ALeExpr, nullable AExpr, nullable TLe, nullable AExpr) */
+void nitc__parser_prod___ALeExpr___init_aleexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TStarship */;
+val* var_n_op /* var n_op: nullable TLe */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AStarshipExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ALeExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -8898,20 +8752,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4466);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4094);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALeExpr> */
 if (var_n_expr == 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__parser_prod, 4467);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4095);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -8919,41 +8782,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4468);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4096);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALeExpr> */
 if (var_n_op == 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__parser_prod, 4469);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4097);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TStarship> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TLe> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TStarship> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLe> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4470);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4098);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALeExpr> */
 if (var_n_expr2 == 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__parser_prod, 4471);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4099);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -8962,8 +8843,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#replace_child for (self: AStarshipExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ALeExpr$replace_child for (self: ALeExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -8993,17 +8874,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarshipExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALeExpr> */
 if (unlikely(var == 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_prod, 4476);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4104);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -9031,26 +8915,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4477);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4105);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AStarshipExpr#n_expr= on <self:AStarshipExpr>*/
+nitc__parser_prod___ALeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$ALeExpr$n_expr= on <self:ALeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarshipExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALeExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4480);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4108);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -9063,9 +8950,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TStarship */
-cltype14 = type_nitc__TStarship.color;
-idtype15 = type_nitc__TStarship.id;
+/* <var_new_child:nullable ANode> isa TLe */
+cltype14 = type_nitc__TLe.color;
+idtype15 = type_nitc__TLe.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -9077,27 +8964,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TStarship", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4481);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLe", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4109);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AStarshipExpr#n_op= on <self:AStarshipExpr>*/
+nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$ALeExpr$n_op= on <self:ALeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarshipExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALeExpr> */
 if (unlikely(var17 == 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_prod, 4484);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4112);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -9125,99 +9015,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4485);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4113);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AStarshipExpr#n_expr2= on <self:AStarshipExpr>*/
+nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$ALeExpr$n_expr2= on <self:ALeExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#n_expr= for (self: AStarshipExpr, AExpr) */
-void nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$ALeExpr$n_expr= for (self: ALeExpr, AExpr) */
+void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#n_op= for (self: AStarshipExpr, Token) */
-void nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$ALeExpr$n_op= for (self: ALeExpr, Token) */
+void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#n_expr2= for (self: AStarshipExpr, AExpr) */
-void nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$ALeExpr$n_expr2= for (self: ALeExpr, AExpr) */
+void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AStarshipExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALeExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarshipExpr#visit_all for (self: AStarshipExpr, Visitor) */
-void nitc__parser_prod___AStarshipExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ALeExpr$visit_all for (self: ALeExpr, Visitor) */
+void nitc__parser_prod___ALeExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarshipExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALeExpr> */
 if (unlikely(var == 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_prod, 4509);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4137);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarshipExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALeExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4510);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4138);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarshipExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALeExpr> */
 if (unlikely(var2 == 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_prod, 4511);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4139);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#init_astarexpr for (self: AStarExpr, nullable AExpr, nullable TStar, nullable AExpr) */
-void nitc__parser_prod___AStarExpr___init_astarexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$ALlExpr$init_allexpr for (self: ALlExpr, nullable AExpr, nullable TLl, nullable AExpr) */
+void nitc__parser_prod___ALlExpr___init_allexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TStar */;
+val* var_n_op /* var n_op: nullable TLl */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AStarExpr> */
+{ /* Inline kernel$Object$init (self) on <self:ALlExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -9225,20 +9124,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4521);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4149);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ALlExpr> */
 if (var_n_expr == 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__parser_prod, 4522);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4150);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -9246,41 +9154,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4523);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4151);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ALlExpr> */
 if (var_n_op == 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__parser_prod, 4524);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4152);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TStar> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TLl> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TStar> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TLl> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4525);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4153);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ALlExpr> */
 if (var_n_expr2 == 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__parser_prod, 4526);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4154);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -9289,8 +9215,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#replace_child for (self: AStarExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AStarExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$ALlExpr$replace_child for (self: ALlExpr, ANode, nullable ANode) */
+void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -9320,17 +9246,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALlExpr> */
 if (unlikely(var == 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_prod, 4531);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4159);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -9358,26 +9287,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4532);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4160);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AStarExpr#n_expr= on <self:AStarExpr>*/
+nitc__parser_prod___ALlExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$ALlExpr$n_expr= on <self:ALlExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALlExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4535);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4163);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -9390,9 +9322,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TStar */
-cltype14 = type_nitc__TStar.color;
-idtype15 = type_nitc__TStar.id;
+/* <var_new_child:nullable ANode> isa TLl */
+cltype14 = type_nitc__TLl.color;
+idtype15 = type_nitc__TLl.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -9404,27 +9336,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TStar", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4536);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TLl", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4164);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AStarExpr#n_op= on <self:AStarExpr>*/
+nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$ALlExpr$n_op= on <self:ALlExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALlExpr> */
 if (unlikely(var17 == 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_prod, 4539);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4167);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -9452,99 +9387,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4540);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4168);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AStarExpr#n_expr2= on <self:AStarExpr>*/
+nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$ALlExpr$n_expr2= on <self:ALlExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#n_expr= for (self: AStarExpr, AExpr) */
-void nitc__parser_prod___AStarExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$ALlExpr$n_expr= for (self: ALlExpr, AExpr) */
+void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:ALlExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#n_op= for (self: AStarExpr, Token) */
-void nitc__parser_prod___AStarExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$ALlExpr$n_op= for (self: ALlExpr, Token) */
+void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:ALlExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#n_expr2= for (self: AStarExpr, AExpr) */
-void nitc__parser_prod___AStarExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$ALlExpr$n_expr2= for (self: ALlExpr, AExpr) */
+void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AStarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:ALlExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarExpr#visit_all for (self: AStarExpr, Visitor) */
-void nitc__parser_prod___AStarExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$ALlExpr$visit_all for (self: ALlExpr, Visitor) */
+void nitc__parser_prod___ALlExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:ALlExpr> */
 if (unlikely(var == 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_prod, 4564);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4192);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:ALlExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4565);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4193);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:ALlExpr> */
 if (unlikely(var2 == 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_prod, 4566);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4194);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#init_astarstarexpr for (self: AStarstarExpr, nullable AExpr, nullable TStarstar, nullable AExpr) */
-void nitc__parser_prod___AStarstarExpr___init_astarstarexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AGtExpr$init_agtexpr for (self: AGtExpr, nullable AExpr, nullable TGt, nullable AExpr) */
+void nitc__parser_prod___AGtExpr___init_agtexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TStarstar */;
+val* var_n_op /* var n_op: nullable TGt */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:AStarstarExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AGtExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -9552,20 +9496,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4576);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4204);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AGtExpr> */
 if (var_n_expr == 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__parser_prod, 4577);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4205);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -9573,41 +9526,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4578);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4206);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AGtExpr> */
 if (var_n_op == 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__parser_prod, 4579);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4207);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TStarstar> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TGt> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TStarstar> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TGt> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4580);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4208);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AGtExpr> */
 if (var_n_expr2 == 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__parser_prod, 4581);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4209);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */
@@ -9616,8 +9587,8 @@ RET_LABEL4:(void)0;
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#replace_child for (self: AStarstarExpr, ANode, nullable ANode) */
-void nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
+/* method parser_prod$AGtExpr$replace_child for (self: AGtExpr, ANode, nullable ANode) */
+void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ANode__replace_child(val* self, val* p0, val* p1) {
 val* var_old_child /* var old_child: ANode */;
 val* var_new_child /* var new_child: nullable ANode */;
 val* var /* : AExpr */;
@@ -9647,17 +9618,20 @@ int idtype25;
 const char* var_class_name26;
 var_old_child = p0;
 var_new_child = p1;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarstarExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGtExpr> */
 if (unlikely(var == 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_prod, 4586);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4214);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var,var_old_child) on <var:AExpr> */
+{ /* Inline kernel$Object$== (var,var_old_child) on <var:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var,var_other) on <var:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var,var_other) on <var:AExpr> */
 var5 = var == var_other;
 var3 = var5;
 goto RET_LABEL4;
@@ -9685,26 +9659,29 @@ var6 = var_new_child->type->type_table[cltype] == idtype;
 if (unlikely(!var6)) {
 var_class_name = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4587);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4215);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod#AStarstarExpr#n_expr= on <self:AStarstarExpr>*/
+nitc__parser_prod___AGtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(self, var_new_child); /* Direct call parser_prod$AGtExpr$n_expr= on <self:AGtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarstarExpr> */
+var7 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGtExpr> */
 if (unlikely(var7 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4590);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4218);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var7,var_old_child) on <var7:Token> */
+{ /* Inline kernel$Object$== (var7,var_old_child) on <var7:Token> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var7,var_other) on <var7:Token> */
+{ /* Inline kernel$Object$is_same_instance (var7,var_other) on <var7:Token> */
 var12 = var7 == var_other;
 var10 = var12;
 goto RET_LABEL11;
@@ -9717,9 +9694,9 @@ RET_LABEL9:(void)0;
 }
 }
 if (var8){
-/* <var_new_child:nullable ANode> isa TStarstar */
-cltype14 = type_nitc__TStarstar.color;
-idtype15 = type_nitc__TStarstar.id;
+/* <var_new_child:nullable ANode> isa TGt */
+cltype14 = type_nitc__TGt.color;
+idtype15 = type_nitc__TGt.id;
 if(var_new_child == NULL) {
 var13 = 0;
 } else {
@@ -9731,27 +9708,30 @@ var13 = var_new_child->type->type_table[cltype14] == idtype15;
 }
 if (unlikely(!var13)) {
 var_class_name16 = var_new_child == NULL ? "null" : var_new_child->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TStarstar", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4591);
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "TGt", var_class_name16);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4219);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod#AStarstarExpr#n_op= on <self:AStarstarExpr>*/
+nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(self, var_new_child); /* Direct call parser_prod$AGtExpr$n_op= on <self:AGtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
-var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarstarExpr> */
+var17 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGtExpr> */
 if (unlikely(var17 == 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_prod, 4594);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4222);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Object#== (var17,var_old_child) on <var17:AExpr> */
+{ /* Inline kernel$Object$== (var17,var_old_child) on <var17:AExpr> */
 var_other = var_old_child;
 {
-{ /* Inline kernel#Object#is_same_instance (var17,var_other) on <var17:AExpr> */
+{ /* Inline kernel$Object$is_same_instance (var17,var_other) on <var17:AExpr> */
 var22 = var17 == var_other;
 var20 = var22;
 goto RET_LABEL21;
@@ -9779,99 +9759,108 @@ var23 = var_new_child->type->type_table[cltype24] == idtype25;
 if (unlikely(!var23)) {
 var_class_name26 = var_new_child == NULL ? "null" : var_new_child->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "AExpr", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4595);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4223);
 fatal_exit(1);
 }
 {
-nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod#AStarstarExpr#n_expr2= on <self:AStarstarExpr>*/
+nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(self, var_new_child); /* Direct call parser_prod$AGtExpr$n_expr2= on <self:AGtExpr>*/
 }
 goto RET_LABEL;
 } else {
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#n_expr= for (self: AStarstarExpr, AExpr) */
-void nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
+/* method parser_prod$AGtExpr$n_expr= for (self: AGtExpr, AExpr) */
+void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ASendExpr__n_expr_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_node; /* _n_expr on <self:AGtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#n_op= for (self: AStarstarExpr, Token) */
-void nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
+/* method parser_prod$AGtExpr$n_op= for (self: AGtExpr, Token) */
+void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_op_61d(val* self, val* p0) {
 val* var_node /* var node: Token */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_node; /* _n_op on <self:AGtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:Token> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:Token> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:Token> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#n_expr2= for (self: AStarstarExpr, AExpr) */
-void nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
+/* method parser_prod$AGtExpr$n_expr2= for (self: AGtExpr, AExpr) */
+void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ABinopExpr__n_expr2_61d(val* self, val* p0) {
 val* var_node /* var node: AExpr */;
 var_node = p0;
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AStarstarExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_node; /* _n_expr2 on <self:AGtExpr> */
 {
-{ /* Inline parser_nodes#ANode#parent= (var_node,self) on <var_node:AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_node,self) on <var_node:AExpr> */
 var_node->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_node:AExpr> */
 RET_LABEL1:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method parser_prod#AStarstarExpr#visit_all for (self: AStarstarExpr, Visitor) */
-void nitc__parser_prod___AStarstarExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
+/* method parser_prod$AGtExpr$visit_all for (self: AGtExpr, Visitor) */
+void nitc__parser_prod___AGtExpr___nitc__parser_nodes__ANode__visit_all(val* self, val* p0) {
 val* var_v /* var v: Visitor */;
 val* var /* : AExpr */;
 val* var1 /* : Token */;
 val* var2 /* : AExpr */;
 var_v = p0;
-var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AStarstarExpr> */
+var = self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val; /* _n_expr on <self:AGtExpr> */
 if (unlikely(var == 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_prod, 4619);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4247);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AStarstarExpr> */
+var1 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val; /* _n_op on <self:AGtExpr> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _n_op");
-PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4620);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4248);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var1); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
-var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AStarstarExpr> */
+var2 = self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val; /* _n_expr2 on <self:AGtExpr> */
 if (unlikely(var2 == 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_prod, 4621);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4249);
 fatal_exit(1);
 }
 {
-nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes#Visitor#enter_visit on <var_v:Visitor>*/
+nitc___nitc__Visitor___enter_visit(var_v, var2); /* Direct call parser_nodes$Visitor$enter_visit on <var_v:Visitor>*/
 }
 RET_LABEL:;
 }
-/* method parser_prod#ASlashExpr#init_aslashexpr for (self: ASlashExpr, nullable AExpr, nullable TSlash, nullable AExpr) */
-void nitc__parser_prod___ASlashExpr___init_aslashexpr(val* self, val* p0, val* p1, val* p2) {
+/* method parser_prod$AGeExpr$init_ageexpr for (self: AGeExpr, nullable AExpr, nullable TGe, nullable AExpr) */
+void nitc__parser_prod___AGeExpr___init_ageexpr(val* self, val* p0, val* p1, val* p2) {
 val* var_n_expr /* var n_expr: nullable AExpr */;
-val* var_n_op /* var n_op: nullable TSlash */;
+val* var_n_op /* var n_op: nullable TGe */;
 val* var_n_expr2 /* var n_expr2: nullable AExpr */;
 {
-{ /* Inline kernel#Object#init (self) on <self:ASlashExpr> */
+{ /* Inline kernel$Object$init (self) on <self:AGeExpr> */
 RET_LABEL1:(void)0;
 }
 }
@@ -9879,20 +9868,29 @@ var_n_expr = p0;
 var_n_op = p1;
 var_n_expr2 = p2;
 if (unlikely(var_n_expr == 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__parser_prod, 4631);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4259);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:ASlashExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ASendExpr___n_expr].val = var_n_expr; /* _n_expr on <self:AGeExpr> */
 if (var_n_expr == 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__parser_prod, 4632);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4260);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr,self) on <var_n_expr:nullable AExpr> */
 if (unlikely(var_n_expr == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr:nullable AExpr> */
@@ -9900,41 +9898,59 @@ RET_LABEL2:(void)0;
 }
 }
 if (unlikely(var_n_op == 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__parser_prod, 4633);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4261);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:ASlashExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_op].val = var_n_op; /* _n_op on <self:AGeExpr> */
 if (var_n_op == 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__parser_prod, 4634);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4262);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_op,self) on <var_n_op:nullable TSlash> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_op,self) on <var_n_op:nullable TGe> */
 if (unlikely(var_n_op == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
-var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TSlash> */
+var_n_op->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_op:nullable TGe> */
 RET_LABEL3:(void)0;
 }
 }
 if (unlikely(var_n_expr2 == 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__parser_prod, 4635);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4263);
 fatal_exit(1);
 }
-self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:ASlashExpr> */
+self->attrs[COLOR_nitc__parser_nodes__ABinopExpr___n_expr2].val = var_n_expr2; /* _n_expr2 on <self:AGeExpr> */
 if (var_n_expr2 == 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__parser_prod, 4636);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_prod, 4264);
 fatal_exit(1);
 } else {
-{ /* Inline parser_nodes#ANode#parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
+{ /* Inline parser_nodes$ANode$parent= (var_n_expr2,self) on <var_n_expr2:nullable AExpr> */
 if (unlikely(var_n_expr2 == 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__parser_nodes, 46);
+PRINT_ERROR(" (%s:%d)\n", FILE_nitc__parser_nodes, 60);
 fatal_exit(1);
 }
 var_n_expr2->attrs[COLOR_nitc__parser_nodes__ANode___parent].val = self; /* _parent on <var_n_expr2:nullable AExpr> */