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

diff --git a/c_src/core__ropes.sep.1.c b/c_src/core__ropes.sep.1.c
index 63380b2..c01dba3 100644
--- a/c_src/core__ropes.sep.1.c
+++ b/c_src/core__ropes.sep.1.c
@@ -1,75 +1,21 @@
 #include "core__ropes.sep.0.h"
-/* method ropes#Concat#chars for (self: Concat): SequenceRead[Char] */
+/* method ropes$Concat$chars for (self: Concat): SequenceRead[Char] */
 val* core__ropes___core__ropes__Concat___core__abstract_text__Text__chars(val* self) {
 val* var /* : SequenceRead[Char] */;
-short int var1 /* : Bool */;
-val* var2 /* : SequenceRead[Char] */;
-val* var3 /* : SequenceRead[Char] */;
-val* var5 /* : RopeChars */;
-var1 = self->attrs[COLOR_core__ropes__Concat___chars].val != NULL; /* _chars on <self:Concat> */
-if(likely(var1)) {
-var2 = self->attrs[COLOR_core__ropes__Concat___chars].val; /* _chars on <self:Concat> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 73);
-fatal_exit(1);
-}
-} else {
-{
-var5 = NEW_core__ropes__RopeChars(&type_core__ropes__RopeChars);
-{
-((void(*)(val* self, val* p0))(var5->class->vft[COLOR_core__abstract_text__StringCharView__target_61d]))(var5, self); /* target= on <var5:RopeChars>*/
-}
-{
-((void(*)(val* self))(var5->class->vft[COLOR_core__kernel__Object__init]))(var5); /* init on <var5:RopeChars>*/
-}
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-self->attrs[COLOR_core__ropes__Concat___chars].val = var3; /* _chars on <self:Concat> */
-var2 = var3;
-}
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#Concat#bytes for (self: Concat): SequenceRead[Byte] */
-val* core__ropes___core__ropes__Concat___core__abstract_text__Text__bytes(val* self) {
-val* var /* : SequenceRead[Byte] */;
-short int var1 /* : Bool */;
-val* var2 /* : SequenceRead[Byte] */;
-val* var3 /* : SequenceRead[Byte] */;
-val* var5 /* : RopeBytes */;
-var1 = self->attrs[COLOR_core__ropes__Concat___bytes].val != NULL; /* _bytes on <self:Concat> */
-if(likely(var1)) {
-var2 = self->attrs[COLOR_core__ropes__Concat___bytes].val; /* _bytes on <self:Concat> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _bytes");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 75);
-fatal_exit(1);
-}
-} else {
-{
-var5 = NEW_core__ropes__RopeBytes(&type_core__ropes__RopeBytes);
+val* var1 /* : RopeChars */;
+var1 = NEW_core__ropes__RopeChars(&type_core__ropes__RopeChars);
 {
-((void(*)(val* self, val* p0))(var5->class->vft[COLOR_core__abstract_text__StringByteView__target_61d]))(var5, self); /* target= on <var5:RopeBytes>*/
+((void(*)(val* self, val* p0))(var1->class->vft[COLOR_core__abstract_text__StringCharView__target_61d]))(var1, self); /* target= on <var1:RopeChars>*/
 }
 {
-((void(*)(val* self))(var5->class->vft[COLOR_core__kernel__Object__init]))(var5); /* init on <var5:RopeBytes>*/
-}
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-self->attrs[COLOR_core__ropes__Concat___bytes].val = var3; /* _bytes on <self:Concat> */
-var2 = var3;
+((void(*)(val* self))(var1->class->vft[COLOR_core__kernel__Object__init]))(var1); /* init on <var1:RopeChars>*/
 }
-var = var2;
+var = var1;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#length for (self: Concat): Int */
+/* method ropes$Concat$length for (self: Concat): Int */
 long core__ropes___core__ropes__Concat___core__abstract_text__Text__length(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -78,45 +24,48 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#length= for (self: Concat, Int) */
-void core__ropes___core__ropes__Concat___length_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__Concat___length].l = p0; /* _length on <self:Concat> */
-RET_LABEL:;
-}
-/* method ropes#Concat#bytelen for (self: Concat): Int */
-long core__ropes___core__ropes__Concat___core__abstract_text__Text__bytelen(val* self) {
+/* method ropes$Concat$byte_length for (self: Concat): Int */
+long core__ropes___core__ropes__Concat___core__abstract_text__Text__byte_length(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__Concat___bytelen].l; /* _bytelen on <self:Concat> */
+var1 = self->attrs[COLOR_core__ropes__Concat___byte_length].l; /* _byte_length on <self:Concat> */
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#substrings for (self: Concat): Iterator[FlatText] */
+/* method ropes$Concat$substrings for (self: Concat): Iterator[FlatText] */
 val* core__ropes___core__ropes__Concat___core__abstract_text__Text__substrings(val* self) {
 val* var /* : Iterator[FlatText] */;
 val* var1 /* : RopeSubstrings */;
 var1 = NEW_core__ropes__RopeSubstrings(&type_core__ropes__RopeSubstrings);
 {
-core__ropes___core__ropes__RopeSubstrings___from(var1, self, 0l); /* Direct call ropes#RopeSubstrings#from on <var1:RopeSubstrings>*/
+core__ropes___core__ropes__RopeSubstrings___from(var1, self, 0l); /* Direct call ropes$RopeSubstrings$from on <var1:RopeSubstrings>*/
 }
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#empty for (self: Concat): String */
+/* method ropes$Concat$empty for (self: Concat): String */
 val* core__ropes___core__ropes__Concat___core__abstract_text__Text__empty(val* self) {
 val* var /* : String */;
 static val* varonce;
 val* var1 /* : String */;
-char* var2 /* : NativeString */;
+char* var2 /* : CString */;
 val* var3 /* : String */;
+val* var4 /* : nullable Int */;
+val* var5 /* : nullable Int */;
+val* var6 /* : nullable Bool */;
+val* var7 /* : nullable Bool */;
 if (likely(varonce!=NULL)) {
 var1 = varonce;
 } else {
 var2 = "";
-var3 = core__flat___NativeString___to_s_full(var2, 0l, 0l);
+var4 = (val*)(0l<<2|1);
+var5 = (val*)(0l<<2|1);
+var6 = (val*)((long)(0)<<2|3);
+var7 = (val*)((long)(0)<<2|3);
+var3 = core__flat___CString___to_s_unsafe(var2, var4, var5, var6, var7);
 var1 = var3;
 varonce = var1;
 }
@@ -125,198 +74,193 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#to_cstring for (self: Concat): NativeString */
+/* method ropes$Concat$to_cstring for (self: Concat): CString */
 char* core__ropes___core__ropes__Concat___core__abstract_text__Text__to_cstring(val* self) {
-char* var /* : NativeString */;
-short int var1 /* : Bool */;
-char* var2 /* : NativeString */;
-char* var3 /* : NativeString */;
-long var5 /* : Int */;
+char* var /* : CString */;
+long var1 /* : Int */;
 long var_len /* var len: Int */;
-char* var6 /* : NativeString */;
-long var7 /* : Int */;
-short int var9 /* : Bool */;
+static char* varoncenew;
+static int varoncenew_guard;
+char* var2 /* : CString */;
+char* var3 /* : CString */;
+long var4 /* : Int */;
+short int var6 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var10 /* : Int */;
-char* var11 /* : NativeString */;
-char* var13 /* : NativeString */;
-char* var_ns /* var ns: NativeString */;
+long var7 /* : Int */;
+char* var8 /* : CString */;
+char* var10 /* : CString */;
+char* var_ns /* var ns: CString */;
 long var_off /* var off: Int */;
-val* var15 /* : Iterator[FlatText] */;
+val* var12 /* : Iterator[FlatText] */;
 val* var_ /* var : Iterator[FlatText] */;
-val* var16 /* : Iterator[nullable Object] */;
-val* var_17 /* var : Iterator[FlatText] */;
-short int var18 /* : Bool */;
-val* var19 /* : nullable Object */;
+val* var13 /* : Iterator[nullable Object] */;
+val* var_14 /* var : Iterator[FlatText] */;
+short int var15 /* : Bool */;
+val* var16 /* : nullable Object */;
 val* var_i /* var i: FlatText */;
-long var20 /* : Int */;
+long var17 /* : Int */;
 long var_ilen /* var ilen: Int */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-const char* var_class_name24;
-char* var25 /* : NativeString */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-const char* var_class_name29;
-long var30 /* : Int */;
-long var32 /* : Int */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__Concat__lazy_32d_to_cstring].s; /* lazy _to_cstring on <self:Concat> */
-if(likely(var1)) {
-var2 = self->attrs[COLOR_core__ropes__Concat___to_cstring].str; /* _to_cstring on <self:Concat> */
+short int var18 /* : Bool */;
+int cltype19;
+int idtype20;
+const char* var_class_name21;
+char* var22 /* : CString */;
+short int var23 /* : Bool */;
+int cltype24;
+int idtype25;
+const char* var_class_name26;
+long var27 /* : Int */;
+long var29 /* : Int */;
+short int var31 /* : Bool */;
+int cltype32;
+int idtype33;
+const char* var_class_name34;
+long var35 /* : Int */;
+var1 = self->attrs[COLOR_core__ropes__Concat___byte_length].l; /* _byte_length on <self:Concat> */
+var_len = var1;
+if (likely(varoncenew_guard)) {
+var2 = varoncenew;
 } else {
+var3 = NULL/*special!*/;
+var2 = var3;
+varoncenew = var2;
+varoncenew_guard = 1;
+}
 {
-var5 = self->attrs[COLOR_core__ropes__Concat___bytelen].l; /* _bytelen on <self:Concat> */
-var_len = var5;
-var6 = NULL/*special!*/;
-{
-{ /* Inline kernel#Int#+ (var_len,1l) on <var_len:Int> */
+{ /* Inline kernel$Int$+ (var_len,1l) on <var_len:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
-var9 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var9)) {
+var6 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var10 = var_len + 1l;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
+var7 = var_len + 1l;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline native#NativeString#new (var6,var7) on <var6:NativeString> */
-var13 = (char*)nit_alloc(var7);
-var11 = var13;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+{ /* Inline native$CString$new (var2,var4) on <var2:CString> */
+var10 = (char*)nit_alloc(var4);
+var8 = var10;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
 }
-var_ns = var11;
+var_ns = var8;
 {
-{ /* Inline native#NativeString#[]= (var_ns,var_len,((unsigned char)0x00)) on <var_ns:NativeString> */
+{ /* Inline native$CString$[]= (var_ns,var_len,((unsigned char)0x00)) on <var_ns:CString> */
 var_ns[var_len]=(unsigned char)((unsigned char)0x00);
-RET_LABEL14:(void)0;
+RET_LABEL11:(void)0;
 }
 }
 var_off = 0l;
 {
-var15 = core__ropes___core__ropes__Concat___core__abstract_text__Text__substrings(self);
+var12 = core__ropes___core__ropes__Concat___core__abstract_text__Text__substrings(self);
 }
-var_ = var15;
+var_ = var12;
 {
-var16 = ((val*(*)(val* self))((((long)var_&3)?class_info[((long)var_&3)]:var_->class)->vft[COLOR_core__abstract_collection__Iterator__iterator]))(var_); /* iterator on <var_:Iterator[FlatText]>*/
+var13 = ((val*(*)(val* self))((((long)var_&3)?class_info[((long)var_&3)]:var_->class)->vft[COLOR_core__abstract_collection__Iterator__iterator]))(var_); /* iterator on <var_:Iterator[FlatText]>*/
 }
-var_17 = var16;
+var_14 = var13;
 for(;;) {
 {
-var18 = ((short int(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_17); /* is_ok on <var_17:Iterator[FlatText]>*/
+var15 = ((short int(*)(val* self))((((long)var_14&3)?class_info[((long)var_14&3)]:var_14->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_14); /* is_ok on <var_14:Iterator[FlatText]>*/
 }
-if (var18){
+if (var15){
 } else {
 goto BREAK_label;
 }
 {
-var19 = ((val*(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_17); /* item on <var_17:Iterator[FlatText]>*/
+var16 = ((val*(*)(val* self))((((long)var_14&3)?class_info[((long)var_14&3)]:var_14->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_14); /* item on <var_14:Iterator[FlatText]>*/
 }
-var_i = var19;
-var20 = var_i->attrs[COLOR_core__abstract_text__FlatText___bytelen].l; /* _bytelen on <var_i:FlatText> */
-var_ilen = var20;
+var_i = var16;
+var17 = var_i->attrs[COLOR_core__abstract_text__FlatText___byte_length].l; /* _byte_length on <var_i:FlatText> */
+var_ilen = var17;
 /* <var_i:FlatText> isa FlatString */
-cltype22 = type_core__FlatString.color;
-idtype23 = type_core__FlatString.id;
-if(cltype22 >= var_i->type->table_size) {
-var21 = 0;
+cltype19 = type_core__FlatString.color;
+idtype20 = type_core__FlatString.id;
+if(cltype19 >= var_i->type->table_size) {
+var18 = 0;
 } else {
-var21 = var_i->type->type_table[cltype22] == idtype23;
+var18 = var_i->type->type_table[cltype19] == idtype20;
 }
-if (unlikely(!var21)) {
-var_class_name24 = var_i == NULL ? "null" : var_i->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name24);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 100);
+if (unlikely(!var18)) {
+var_class_name21 = var_i == NULL ? "null" : var_i->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name21);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 98);
 fatal_exit(1);
 }
-var25 = var_i->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_i:FlatText(FlatString)> */
+var22 = var_i->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_i:FlatText(FlatString)> */
 /* <var_i:FlatText> isa FlatString */
-cltype27 = type_core__FlatString.color;
-idtype28 = type_core__FlatString.id;
-if(cltype27 >= var_i->type->table_size) {
-var26 = 0;
+cltype24 = type_core__FlatString.color;
+idtype25 = type_core__FlatString.id;
+if(cltype24 >= var_i->type->table_size) {
+var23 = 0;
 } else {
-var26 = var_i->type->type_table[cltype27] == idtype28;
+var23 = var_i->type->type_table[cltype24] == idtype25;
 }
-if (unlikely(!var26)) {
-var_class_name29 = var_i == NULL ? "null" : var_i->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 100);
+if (unlikely(!var23)) {
+var_class_name26 = var_i == NULL ? "null" : var_i->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 98);
 fatal_exit(1);
 }
-var30 = var_i->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <var_i:FlatText(FlatString)> */
+var27 = var_i->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <var_i:FlatText(FlatString)> */
 {
-{ /* Inline native#NativeString#copy_to (var25,var_ns,var_ilen,var30,var_off) on <var25:NativeString> */
-memmove(var_ns+var_off,var25+var30,var_ilen);
-RET_LABEL31:(void)0;
+{ /* Inline native$CString$copy_to (var22,var_ns,var_ilen,var27,var_off) on <var22:CString> */
+memmove(var_ns+var_off,var22+var27,var_ilen);
+RET_LABEL28:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var_off,var_ilen) on <var_off:Int> */
+{ /* Inline kernel$Int$+ (var_off,var_ilen) on <var_off:Int> */
 /* Covariant cast for argument 0 (i) <var_ilen:Int> isa OTHER */
 /* <var_ilen:Int> isa OTHER */
-var34 = 1; /* easy <var_ilen:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var31 = 1; /* easy <var_ilen:Int> isa OTHER*/
+if (unlikely(!var31)) {
+var_class_name34 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var38 = var_off + var_ilen;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var35 = var_off + var_ilen;
+var29 = var35;
+goto RET_LABEL30;
+RET_LABEL30:(void)0;
 }
 }
-var_off = var32;
+var_off = var29;
 {
-((void(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_17); /* next on <var_17:Iterator[FlatText]>*/
+((void(*)(val* self))((((long)var_14&3)?class_info[((long)var_14&3)]:var_14->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_14); /* next on <var_14:Iterator[FlatText]>*/
 }
 }
 BREAK_label: (void)0;
 {
-((void(*)(val* self))((((long)var_17&3)?class_info[((long)var_17&3)]:var_17->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_17); /* finish on <var_17:Iterator[FlatText]>*/
+((void(*)(val* self))((((long)var_14&3)?class_info[((long)var_14&3)]:var_14->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_14); /* finish on <var_14:Iterator[FlatText]>*/
 }
-var3 = var_ns;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-self->attrs[COLOR_core__ropes__Concat___to_cstring].str = var3; /* _to_cstring on <self:Concat> */
-var2 = var3;
-self->attrs[COLOR_core__ropes__Concat__lazy_32d_to_cstring].s = 1; /* lazy _to_cstring on <self:Concat> */
-}
-var = var2;
+var = var_ns;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#left= for (self: Concat, String) */
+/* method ropes$Concat$left= for (self: Concat, String) */
 void core__ropes___core__ropes__Concat___left_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__Concat___left].val = p0; /* _left on <self:Concat> */
 RET_LABEL:;
 }
-/* method ropes#Concat#right= for (self: Concat, String) */
+/* method ropes$Concat$right= for (self: Concat, String) */
 void core__ropes___core__ropes__Concat___right_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__Concat___right].val = p0; /* _right on <self:Concat> */
 RET_LABEL:;
 }
-/* method ropes#Concat#init for (self: Concat) */
+/* method ropes$Concat$init for (self: Concat) */
 void core__ropes___core__ropes__Concat___core__kernel__Object__init(val* self) {
 val* var /* : String */;
 val* var_l /* var l: String */;
@@ -330,28 +274,35 @@ int cltype;
 int idtype;
 const char* var_class_name;
 long var7 /* : Int */;
+long var8 /* : Int */;
 long var9 /* : Int */;
 long var10 /* : Int */;
-long var11 /* : Int */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
+short int var12 /* : Bool */;
+int cltype13;
+int idtype14;
+const char* var_class_name15;
+long var16 /* : Int */;
 long var17 /* : Int */;
 {
 ((void(*)(val* self))(self->class->vft[COLOR_core__ropes___core__ropes__Concat___core__kernel__Object__init]))(self); /* init on <self:Concat>*/
 }
 var = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
 if (unlikely(var == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 112);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 110);
 fatal_exit(1);
 }
 var_l = var;
 var1 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 113);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 111);
 fatal_exit(1);
 }
 var_r = var1;
@@ -362,14 +313,14 @@ var2 = ((long(*)(val* self))(var_l->class->vft[COLOR_core__abstract_text__Text__
 var3 = ((long(*)(val* self))(var_r->class->vft[COLOR_core__abstract_text__Text__length]))(var_r); /* length on <var_r:String>*/
 }
 {
-{ /* Inline kernel#Int#+ (var2,var3) on <var2:Int> */
+{ /* Inline kernel$Int$+ (var2,var3) on <var2:Int> */
 /* Covariant cast for argument 0 (i) <var3:Int> isa OTHER */
 /* <var3:Int> isa OTHER */
 var6 = 1; /* easy <var3:Int> isa OTHER*/
 if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var7 = var2 + var3;
@@ -378,47 +329,44 @@ goto RET_LABEL5;
 RET_LABEL5:(void)0;
 }
 }
-{
-{ /* Inline ropes#Concat#length= (self,var4) on <self:Concat> */
 self->attrs[COLOR_core__ropes__Concat___length].l = var4; /* _length on <self:Concat> */
-RET_LABEL8:(void)0;
-}
-}
 {
-var9 = ((long(*)(val* self))(var_l->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_l); /* bytelen on <var_l:String>*/
+var8 = ((long(*)(val* self))(var_l->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_l); /* byte_length on <var_l:String>*/
 }
 {
-var10 = ((long(*)(val* self))(var_r->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_r); /* bytelen on <var_r:String>*/
+var9 = ((long(*)(val* self))(var_r->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_r); /* byte_length on <var_r:String>*/
 }
 {
-{ /* Inline kernel#Int#+ (var9,var10) on <var9:Int> */
-/* Covariant cast for argument 0 (i) <var10:Int> isa OTHER */
-/* <var10:Int> isa OTHER */
-var13 = 1; /* easy <var10:Int> isa OTHER*/
-if (unlikely(!var13)) {
-var_class_name16 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+{ /* Inline kernel$Int$+ (var8,var9) on <var8:Int> */
+/* Covariant cast for argument 0 (i) <var9:Int> isa OTHER */
+/* <var9:Int> isa OTHER */
+var12 = 1; /* easy <var9:Int> isa OTHER*/
+if (unlikely(!var12)) {
+var_class_name15 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name15);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var17 = var9 + var10;
-var11 = var17;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var16 = var8 + var9;
+var10 = var16;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-self->attrs[COLOR_core__ropes__Concat___bytelen].l = var11; /* _bytelen on <self:Concat> */
+self->attrs[COLOR_core__ropes__Concat___byte_length].l = var10; /* _byte_length on <self:Concat> */
+var17 = self->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <self:Concat> */
+self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l = var17; /* _flat_last_pos_start on <self:Concat> */
 RET_LABEL:;
 }
-/* method ropes#Concat#is_empty for (self: Concat): Bool */
+/* method ropes$Concat$is_empty for (self: Concat): Bool */
 short int core__ropes___core__ropes__Concat___core__abstract_text__Text__is_empty(val* self) {
 short int var /* : Bool */;
 long var1 /* : Int */;
 short int var2 /* : Bool */;
 short int var4 /* : Bool */;
-var1 = self->attrs[COLOR_core__ropes__Concat___bytelen].l; /* _bytelen on <self:Concat> */
+var1 = self->attrs[COLOR_core__ropes__Concat___byte_length].l; /* _byte_length on <self:Concat> */
 {
-{ /* Inline kernel#Int#== (var1,0l) on <var1:Int> */
+{ /* Inline kernel$Int$== (var1,0l) on <var1:Int> */
 var4 = var1 == 0l;
 var2 = var4;
 goto RET_LABEL3;
@@ -430,8 +378,8 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#* for (self: Concat, Int): String */
-val* core__ropes___core__ropes__Concat___core__abstract_text__String___42d(val* self, long p0) {
+/* method ropes$Concat$* for (self: Concat, Int): String */
+val* core__ropes___core__ropes__Concat___core__abstract_text__Text___42d(val* self, long p0) {
 val* var /* : String */;
 long var_i /* var i: Int */;
 val* var_x /* var x: String */;
@@ -443,7 +391,7 @@ int cltype;
 int idtype;
 const char* var_class_name;
 short int var4 /* : Bool */;
-val* var5 /* : String */;
+val* var5 /* : Text */;
 long var6 /* : Int */;
 var_i = p0;
 var_x = self;
@@ -451,14 +399,14 @@ var_j = 1l;
 var_ = var_i;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_j,var_) on <var_j:Int> */
+{ /* Inline kernel$Int$< (var_j,var_) on <var_j:Int> */
 /* Covariant cast for argument 0 (i) <var_:Int> isa OTHER */
 /* <var_:Int> isa OTHER */
 var3 = 1; /* easy <var_:Int> isa OTHER*/
 if (unlikely(!var3)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var4 = var_j < var_;
@@ -472,7 +420,7 @@ if (var1){
 goto BREAK_label;
 }
 {
-var5 = ((val*(*)(val* self, val* p0))(var_x->class->vft[COLOR_core__abstract_text__String___43d]))(var_x, self); /* + on <var_x:String>*/
+var5 = ((val*(*)(val* self, val* p0))(var_x->class->vft[COLOR_core__abstract_text__Text___43d]))(var_x, self); /* + on <var_x:String>*/
 }
 var_x = var5;
 {
@@ -486,7 +434,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#[] for (self: Concat, Int): Char */
+/* method ropes$Concat$[] for (self: Concat, Int): Char */
 uint32_t core__ropes___core__ropes__Concat___core__abstract_text__Text___91d_93d(val* self, long p0) {
 uint32_t var /* : Char */;
 long var_i /* var i: Int */;
@@ -508,55 +456,53 @@ short int var13 /* : Bool */;
 long var14 /* : Int */;
 long var_flps /* var flps: Int */;
 short int var15 /* : Bool */;
-short int var16 /* : Bool */;
-long var17 /* : Int */;
-long var19 /* : Int */;
-short int var20 /* : Bool */;
-short int var22 /* : Bool */;
-short int var23 /* : Bool */;
-short int var_24 /* var : Bool */;
-short int var25 /* : Bool */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-const char* var_class_name30;
+short int var17 /* : Bool */;
+int cltype18;
+int idtype19;
+const char* var_class_name20;
+short int var21 /* : Bool */;
+val* var22 /* : FlatString */;
+val* var_fc /* var fc: FlatString */;
+long var23 /* : Int */;
+long var24 /* : Int */;
+short int var26 /* : Bool */;
+int cltype27;
+int idtype28;
+const char* var_class_name29;
+long var30 /* : Int */;
 short int var31 /* : Bool */;
-short int var_32 /* var : Bool */;
-long var33 /* : Int */;
-short int var34 /* : Bool */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-const char* var_class_name39;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+short int var37 /* : Bool */;
+long var38 /* : Int */;
 short int var40 /* : Bool */;
-val* var41 /* : FlatString */;
-long var42 /* : Int */;
-short int var44 /* : Bool */;
-int cltype45;
-int idtype46;
-const char* var_class_name47;
-long var48 /* : Int */;
-uint32_t var49 /* : Char */;
-val* var50 /* : FlatString */;
+int cltype41;
+int idtype42;
+const char* var_class_name43;
+long var44 /* : Int */;
+uint32_t var45 /* : Char */;
+val* var46 /* : FlatString */;
 val* var_lf /* var lf: FlatString */;
-long var51 /* : Int */;
-long var52 /* : Int */;
-short int var54 /* : Bool */;
-int cltype55;
-int idtype56;
-const char* var_class_name57;
-long var58 /* : Int */;
-uint32_t var59 /* : Char */;
+long var47 /* : Int */;
+long var48 /* : Int */;
+short int var50 /* : Bool */;
+int cltype51;
+int idtype52;
+const char* var_class_name53;
+long var54 /* : Int */;
+uint32_t var55 /* : Char */;
 var_i = p0;
 {
-{ /* Inline kernel#Int#>= (var_i,0l) on <var_i:Int> */
+{ /* Inline kernel$Int$>= (var_i,0l) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var4 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var4)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var5 = var_i >= 0l;
@@ -569,17 +515,17 @@ var_ = var2;
 if (var2){
 var6 = self->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <self:Concat> */
 {
-{ /* Inline kernel#Int#<= (var_i,var6) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var6) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
 /* <var6:Int> isa OTHER */
 var9 = 1; /* easy <var6:Int> isa OTHER*/
 if (unlikely(!var9)) {
 var_class_name12 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name12);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var13 = var_i <= var6;
+var13 = var_i < var6;
 var7 = var13;
 goto RET_LABEL8;
 RET_LABEL8:(void)0;
@@ -590,469 +536,387 @@ var1 = var7;
 var1 = var_;
 }
 if (unlikely(!var1)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 134);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 133);
 fatal_exit(1);
 }
 var14 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
 var_flps = var14;
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
-var19 = -1l;
-var17 = var19;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#!= (var_flps,var17) on <var_flps:Int> */
-var22 = var_flps == var17;
-var23 = !var22;
-var20 = var23;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
-}
-}
-var_24 = var20;
-if (var20){
-{
-{ /* Inline kernel#Int#>= (var_i,var_flps) on <var_i:Int> */
+{ /* Inline kernel$Int$>= (var_i,var_flps) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var27 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var27)) {
-var_class_name30 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+var17 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var17)) {
+var_class_name20 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var31 = var_i >= var_flps;
-var25 = var31;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+var21 = var_i >= var_flps;
+var15 = var21;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
 }
 }
-var16 = var25;
-} else {
-var16 = var_24;
+if (var15){
+var22 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
+if (unlikely(var22 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_32 = var16;
-if (var16){
-var33 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_end].l; /* _flat_last_pos_end on <self:Concat> */
-{
-{ /* Inline kernel#Int#<= (var_i,var33) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var33:Int> isa OTHER */
-/* <var33:Int> isa OTHER */
-var36 = 1; /* easy <var33:Int> isa OTHER*/
-if (unlikely(!var36)) {
-var_class_name39 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 136);
 fatal_exit(1);
 }
-var40 = var_i <= var33;
-var34 = var40;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
-}
+var_fc = var22;
+var23 = var_fc->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_fc:FlatString> */
+{
+{ /* Inline kernel$Int$+ (var_flps,var23) on <var_flps:Int> */
+/* Covariant cast for argument 0 (i) <var23:Int> isa OTHER */
+/* <var23:Int> isa OTHER */
+var26 = 1; /* easy <var23:Int> isa OTHER*/
+if (unlikely(!var26)) {
+var_class_name29 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
 }
-var15 = var34;
-} else {
-var15 = var_32;
+var30 = var_flps + var23;
+var24 = var30;
+goto RET_LABEL25;
+RET_LABEL25:(void)0;
 }
-if (var15){
-var41 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
-if (unlikely(var41 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 137);
-fatal_exit(1);
 }
 {
-{ /* Inline kernel#Int#- (var_i,var_flps) on <var_i:Int> */
+{ /* Inline kernel$Int$< (var_i,var24) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var24:Int> isa OTHER */
+/* <var24:Int> isa OTHER */
+var33 = 1; /* easy <var24:Int> isa OTHER*/
+if (unlikely(!var33)) {
+var_class_name36 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
+}
+var37 = var_i < var24;
+var31 = var37;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
+}
+}
+if (var31){
+{
+{ /* Inline kernel$Int$- (var_i,var_flps) on <var_i:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var44 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var44)) {
-var_class_name47 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var40 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var40)) {
+var_class_name43 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name43);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var48 = var_i - var_flps;
-var42 = var48;
-goto RET_LABEL43;
-RET_LABEL43:(void)0;
+var44 = var_i - var_flps;
+var38 = var44;
+goto RET_LABEL39;
+RET_LABEL39:(void)0;
 }
 }
 {
-var49 = core__flat___FlatText___fetch_char_at(var41, var42);
+var45 = ((uint32_t(*)(val* self, long p0))(var_fc->class->vft[COLOR_core__flat__FlatText__fetch_char_at]))(var_fc, var38); /* fetch_char_at on <var_fc:FlatString>*/
 }
-var = var49;
+var = var45;
 goto RET_LABEL;
 } else {
 }
+} else {
+}
 {
-var50 = core__ropes___core__ropes__Concat___get_leaf_at(self, var_i);
+var46 = core__ropes___core__ropes__Concat___get_leaf_at(self, var_i);
 }
-var_lf = var50;
-var51 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
+var_lf = var46;
+var47 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
 {
-{ /* Inline kernel#Int#- (var_i,var51) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var51:Int> isa OTHER */
-/* <var51:Int> isa OTHER */
-var54 = 1; /* easy <var51:Int> isa OTHER*/
-if (unlikely(!var54)) {
-var_class_name57 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name57);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+{ /* Inline kernel$Int$- (var_i,var47) on <var_i:Int> */
+/* Covariant cast for argument 0 (i) <var47:Int> isa OTHER */
+/* <var47:Int> isa OTHER */
+var50 = 1; /* easy <var47:Int> isa OTHER*/
+if (unlikely(!var50)) {
+var_class_name53 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var58 = var_i - var51;
-var52 = var58;
-goto RET_LABEL53;
-RET_LABEL53:(void)0;
+var54 = var_i - var47;
+var48 = var54;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
 {
-var59 = core__flat___FlatText___fetch_char_at(var_lf, var52);
+var55 = ((uint32_t(*)(val* self, long p0))(var_lf->class->vft[COLOR_core__flat__FlatText__fetch_char_at]))(var_lf, var48); /* fetch_char_at on <var_lf:FlatString>*/
 }
-var = var59;
+var = var55;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#get_leaf_at for (self: Concat, Int): FlatString */
+/* method ropes$Concat$get_leaf_at for (self: Concat, Int): FlatString */
 val* core__ropes___core__ropes__Concat___get_leaf_at(val* self, long p0) {
 val* var /* : FlatString */;
 long var_pos /* var pos: Int */;
 long var1 /* : Int */;
 long var_flps /* var flps: Int */;
 short int var2 /* : Bool */;
-short int var3 /* : Bool */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-short int var10 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
+short int var4 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-short int var14 /* : Bool */;
-short int var_15 /* var : Bool */;
-long var16 /* : Int */;
+short int var5 /* : Bool */;
+val* var6 /* : FlatString */;
+val* var_fc /* var fc: FlatString */;
+long var7 /* : Int */;
+long var8 /* : Int */;
+short int var10 /* : Bool */;
+int cltype11;
+int idtype12;
+const char* var_class_name13;
+long var14 /* : Int */;
+short int var15 /* : Bool */;
 short int var17 /* : Bool */;
-short int var19 /* : Bool */;
-int cltype20;
-int idtype21;
-const char* var_class_name22;
-short int var23 /* : Bool */;
-val* var24 /* : FlatString */;
+int cltype18;
+int idtype19;
+const char* var_class_name20;
+short int var21 /* : Bool */;
 val* var_s /* var s: String */;
 long var_st /* var st: Int */;
+short int var22 /* : Bool */;
+int cltype23;
+int idtype24;
 short int var25 /* : Bool */;
 int cltype26;
 int idtype27;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-const char* var_class_name31;
-val* var32 /* : String */;
+const char* var_class_name28;
+val* var29 /* : String */;
 val* var_lft /* var lft: String */;
-long var33 /* : Int */;
+long var30 /* : Int */;
 long var_llen /* var llen: Int */;
-short int var34 /* : Bool */;
-short int var36 /* : Bool */;
-int cltype37;
-int idtype38;
-const char* var_class_name39;
-short int var40 /* : Bool */;
-val* var41 /* : String */;
-long var42 /* : Int */;
-short int var44 /* : Bool */;
-int cltype45;
-int idtype46;
-const char* var_class_name47;
-long var48 /* : Int */;
-long var49 /* : Int */;
-short int var51 /* : Bool */;
-int cltype52;
-int idtype53;
-const char* var_class_name54;
-long var55 /* : Int */;
-long var56 /* : Int */;
-short int var58 /* : Bool */;
-int cltype59;
-int idtype60;
-const char* var_class_name61;
-long var62 /* : Int */;
-long var63 /* : Int */;
-long var65 /* : Int */;
-long var66 /* : Int */;
-short int var68 /* : Bool */;
-int cltype69;
-int idtype70;
-const char* var_class_name71;
-long var72 /* : Int */;
-long var73 /* : Int */;
-short int var75 /* : Bool */;
-int cltype76;
-int idtype77;
-const char* var_class_name78;
-long var79 /* : Int */;
+short int var31 /* : Bool */;
+short int var33 /* : Bool */;
+int cltype34;
+int idtype35;
+const char* var_class_name36;
+short int var37 /* : Bool */;
+val* var38 /* : String */;
+long var39 /* : Int */;
+short int var41 /* : Bool */;
+int cltype42;
+int idtype43;
+const char* var_class_name44;
+long var45 /* : Int */;
+long var46 /* : Int */;
+short int var48 /* : Bool */;
+int cltype49;
+int idtype50;
+const char* var_class_name51;
+long var52 /* : Int */;
 var_pos = p0;
 var1 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
 var_flps = var1;
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
-var6 = -1l;
-var4 = var6;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#!= (var_flps,var4) on <var_flps:Int> */
-var9 = var_flps == var4;
-var10 = !var9;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var_ = var7;
-if (var7){
-{
-{ /* Inline kernel#Int#>= (var_pos,var_flps) on <var_pos:Int> */
+{ /* Inline kernel$Int$>= (var_pos,var_flps) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var13 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var13)) {
+var4 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var4)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var14 = var_pos >= var_flps;
-var11 = var14;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var5 = var_pos >= var_flps;
+var2 = var5;
+goto RET_LABEL3;
+RET_LABEL3:(void)0;
 }
 }
-var3 = var11;
-} else {
-var3 = var_;
+if (var2){
+var6 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_15 = var3;
-if (var3){
-var16 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_end].l; /* _flat_last_pos_end on <self:Concat> */
-{
-{ /* Inline kernel#Int#<= (var_pos,var16) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var16:Int> isa OTHER */
-/* <var16:Int> isa OTHER */
-var19 = 1; /* easy <var16:Int> isa OTHER*/
-if (unlikely(!var19)) {
-var_class_name22 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name22);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 146);
 fatal_exit(1);
 }
-var23 = var_pos <= var16;
-var17 = var23;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
+var_fc = var6;
+var7 = var_fc->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_fc:FlatString> */
+{
+{ /* Inline kernel$Int$+ (var_flps,var7) on <var_flps:Int> */
+/* Covariant cast for argument 0 (i) <var7:Int> isa OTHER */
+/* <var7:Int> isa OTHER */
+var10 = 1; /* easy <var7:Int> isa OTHER*/
+if (unlikely(!var10)) {
+var_class_name13 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name13);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
 }
+var14 = var_flps + var7;
+var8 = var14;
+goto RET_LABEL9;
+RET_LABEL9:(void)0;
 }
-var2 = var17;
-} else {
-var2 = var_15;
 }
-if (var2){
-var24 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
-if (unlikely(var24 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 146);
+{
+{ /* Inline kernel$Int$< (var_pos,var8) on <var_pos:Int> */
+/* Covariant cast for argument 0 (i) <var8:Int> isa OTHER */
+/* <var8:Int> isa OTHER */
+var17 = 1; /* easy <var8:Int> isa OTHER*/
+if (unlikely(!var17)) {
+var_class_name20 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var = var24;
+var21 = var_pos < var8;
+var15 = var21;
+goto RET_LABEL16;
+RET_LABEL16:(void)0;
+}
+}
+if (var15){
+var = var_fc;
 goto RET_LABEL;
 } else {
 }
+} else {
+}
 var_s = self;
 var_st = var_pos;
 for(;;) {
 /* <var_s:String> isa FlatString */
-cltype26 = type_core__FlatString.color;
-idtype27 = type_core__FlatString.id;
-if(cltype26 >= var_s->type->table_size) {
-var25 = 0;
+cltype23 = type_core__FlatString.color;
+idtype24 = type_core__FlatString.id;
+if(cltype23 >= var_s->type->table_size) {
+var22 = 0;
 } else {
-var25 = var_s->type->type_table[cltype26] == idtype27;
+var22 = var_s->type->type_table[cltype23] == idtype24;
 }
-if (var25){
+if (var22){
 goto BREAK_label;
 } else {
 }
 /* <var_s:String> isa Concat */
-cltype29 = type_core__ropes__Concat.color;
-idtype30 = type_core__ropes__Concat.id;
-if(cltype29 >= var_s->type->table_size) {
-var28 = 0;
+cltype26 = type_core__ropes__Concat.color;
+idtype27 = type_core__ropes__Concat.id;
+if(cltype26 >= var_s->type->table_size) {
+var25 = 0;
 } else {
-var28 = var_s->type->type_table[cltype29] == idtype30;
+var25 = var_s->type->type_table[cltype26] == idtype27;
 }
-if (unlikely(!var28)) {
-var_class_name31 = var_s == NULL ? "null" : var_s->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Concat", var_class_name31);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 152);
+if (unlikely(!var25)) {
+var_class_name28 = var_s == NULL ? "null" : var_s->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "Concat", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 153);
 fatal_exit(1);
 }
 var_s = var_s;
-var32 = var_s->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_s:String(Concat)> */
-if (unlikely(var32 == NULL)) {
+var29 = var_s->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_s:String(Concat)> */
+if (unlikely(var29 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 153);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 154);
 fatal_exit(1);
 }
-var_lft = var32;
+var_lft = var29;
 {
-var33 = ((long(*)(val* self))(var_lft->class->vft[COLOR_core__abstract_text__Text__length]))(var_lft); /* length on <var_lft:String>*/
+var30 = ((long(*)(val* self))(var_lft->class->vft[COLOR_core__abstract_text__Text__length]))(var_lft); /* length on <var_lft:String>*/
 }
-var_llen = var33;
+var_llen = var30;
 {
-{ /* Inline kernel#Int#>= (var_pos,var_llen) on <var_pos:Int> */
+{ /* Inline kernel$Int$>= (var_pos,var_llen) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <var_llen:Int> isa OTHER */
 /* <var_llen:Int> isa OTHER */
-var36 = 1; /* easy <var_llen:Int> isa OTHER*/
-if (unlikely(!var36)) {
-var_class_name39 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+var33 = 1; /* easy <var_llen:Int> isa OTHER*/
+if (unlikely(!var33)) {
+var_class_name36 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var40 = var_pos >= var_llen;
-var34 = var40;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
+var37 = var_pos >= var_llen;
+var31 = var37;
+goto RET_LABEL32;
+RET_LABEL32:(void)0;
 }
 }
-if (var34){
-var41 = var_s->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_s:String(Concat)> */
-if (unlikely(var41 == NULL)) {
+if (var31){
+var38 = var_s->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_s:String(Concat)> */
+if (unlikely(var38 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 156);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 157);
 fatal_exit(1);
 }
-var_s = var41;
+var_s = var38;
 {
-{ /* Inline kernel#Int#- (var_pos,var_llen) on <var_pos:Int> */
+{ /* Inline kernel$Int$- (var_pos,var_llen) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <var_llen:Int> isa OTHER */
 /* <var_llen:Int> isa OTHER */
-var44 = 1; /* easy <var_llen:Int> isa OTHER*/
-if (unlikely(!var44)) {
-var_class_name47 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var41 = 1; /* easy <var_llen:Int> isa OTHER*/
+if (unlikely(!var41)) {
+var_class_name44 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name44);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var48 = var_pos - var_llen;
-var42 = var48;
-goto RET_LABEL43;
-RET_LABEL43:(void)0;
+var45 = var_pos - var_llen;
+var39 = var45;
+goto RET_LABEL40;
+RET_LABEL40:(void)0;
 }
 }
-var_pos = var42;
+var_pos = var39;
 } else {
 var_s = var_lft;
 }
 }
 BREAK_label: (void)0;
 {
-{ /* Inline kernel#Int#- (var_st,var_pos) on <var_st:Int> */
-/* Covariant cast for argument 0 (i) <var_pos:Int> isa OTHER */
-/* <var_pos:Int> isa OTHER */
-var51 = 1; /* easy <var_pos:Int> isa OTHER*/
-if (unlikely(!var51)) {
-var_class_name54 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name54);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var55 = var_st - var_pos;
-var49 = var55;
-goto RET_LABEL50;
-RET_LABEL50:(void)0;
-}
-}
-self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l = var49; /* _flat_last_pos_start on <self:Concat> */
-{
-{ /* Inline kernel#Int#- (var_st,var_pos) on <var_st:Int> */
+{ /* Inline kernel$Int$- (var_st,var_pos) on <var_st:Int> */
 /* Covariant cast for argument 0 (i) <var_pos:Int> isa OTHER */
 /* <var_pos:Int> isa OTHER */
-var58 = 1; /* easy <var_pos:Int> isa OTHER*/
-if (unlikely(!var58)) {
-var_class_name61 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name61);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var62 = var_st - var_pos;
-var56 = var62;
-goto RET_LABEL57;
-RET_LABEL57:(void)0;
-}
-}
-{
-{ /* Inline abstract_text#FlatText#length (var_s) on <var_s:String(FlatString)> */
-var65 = var_s->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_s:String(FlatString)> */
-var63 = var65;
-RET_LABEL64:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var56,var63) on <var56:Int> */
-/* Covariant cast for argument 0 (i) <var63:Int> isa OTHER */
-/* <var63:Int> isa OTHER */
-var68 = 1; /* easy <var63:Int> isa OTHER*/
-if (unlikely(!var68)) {
-var_class_name71 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name71);
+var48 = 1; /* easy <var_pos:Int> isa OTHER*/
+if (unlikely(!var48)) {
+var_class_name51 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name51);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var72 = var56 + var63;
-var66 = var72;
-goto RET_LABEL67;
-RET_LABEL67:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var66,1l) on <var66:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var75 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var75)) {
-var_class_name78 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name78);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var79 = var66 - 1l;
-var73 = var79;
-goto RET_LABEL74;
-RET_LABEL74:(void)0;
+var52 = var_st - var_pos;
+var46 = var52;
+goto RET_LABEL47;
+RET_LABEL47:(void)0;
 }
 }
-self->attrs[COLOR_core__ropes__Concat___flat_last_pos_end].l = var73; /* _flat_last_pos_end on <self:Concat> */
+self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l = var46; /* _flat_last_pos_start on <self:Concat> */
 self->attrs[COLOR_core__ropes__Concat___flat_cache].val = var_s; /* _flat_cache on <self:Concat> */
 var = var_s;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#substring for (self: Concat, Int, Int): String */
+/* method ropes$Concat$substring for (self: Concat, Int, Int): String */
 val* core__ropes___core__ropes__Concat___core__abstract_text__Text__substring(val* self, long p0, long p1) {
 val* var /* : String */;
 long var_from /* var from: Int */;
@@ -1077,149 +941,154 @@ const char* var_class_name17;
 short int var18 /* : Bool */;
 static val* varonce;
 val* var19 /* : String */;
-char* var20 /* : NativeString */;
+char* var20 /* : CString */;
 val* var21 /* : String */;
-long var22 /* : Int */;
-long var24 /* : Int */;
+val* var22 /* : nullable Int */;
+val* var23 /* : nullable Int */;
+val* var24 /* : nullable Bool */;
+val* var25 /* : nullable Bool */;
+long var26 /* : Int */;
 long var_ln /* var ln: Int */;
-long var25 /* : Int */;
-short int var27 /* : Bool */;
-int cltype28;
-int idtype29;
-const char* var_class_name30;
-long var31 /* : Int */;
-short int var32 /* : Bool */;
+long var27 /* : Int */;
+short int var29 /* : Bool */;
+int cltype30;
+int idtype31;
+const char* var_class_name32;
+long var33 /* : Int */;
 short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-short int var38 /* : Bool */;
-long var39 /* : Int */;
-short int var41 /* : Bool */;
-int cltype42;
-int idtype43;
-const char* var_class_name44;
-long var45 /* : Int */;
-short int var46 /* : Bool */;
+short int var36 /* : Bool */;
+int cltype37;
+int idtype38;
+const char* var_class_name39;
+short int var40 /* : Bool */;
+long var41 /* : Int */;
+short int var43 /* : Bool */;
+int cltype44;
+int idtype45;
+const char* var_class_name46;
+long var47 /* : Int */;
 short int var48 /* : Bool */;
-int cltype49;
-int idtype50;
-const char* var_class_name51;
-short int var52 /* : Bool */;
-static val* varonce53;
-val* var54 /* : String */;
-char* var55 /* : NativeString */;
+short int var50 /* : Bool */;
+int cltype51;
+int idtype52;
+const char* var_class_name53;
+short int var54 /* : Bool */;
+static val* varonce55;
 val* var56 /* : String */;
-long var57 /* : Int */;
-short int var59 /* : Bool */;
-int cltype60;
-int idtype61;
-const char* var_class_name62;
+char* var57 /* : CString */;
+val* var58 /* : String */;
+val* var59 /* : nullable Int */;
+val* var60 /* : nullable Int */;
+val* var61 /* : nullable Bool */;
+val* var62 /* : nullable Bool */;
 long var63 /* : Int */;
-long var64 /* : Int */;
-short int var66 /* : Bool */;
-int cltype67;
-int idtype68;
-const char* var_class_name69;
+short int var65 /* : Bool */;
+int cltype66;
+int idtype67;
+const char* var_class_name68;
+long var69 /* : Int */;
 long var70 /* : Int */;
-long var_end_index /* var end_index: Int */;
-long var71 /* : Int */;
-long var_flps /* var flps: Int */;
 short int var72 /* : Bool */;
-short int var73 /* : Bool */;
-long var74 /* : Int */;
+int cltype73;
+int idtype74;
+const char* var_class_name75;
 long var76 /* : Int */;
-short int var77 /* : Bool */;
-short int var79 /* : Bool */;
+long var_end_index /* var end_index: Int */;
+long var77 /* : Int */;
+long var_flps /* var flps: Int */;
+short int var78 /* : Bool */;
 short int var80 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var81 /* : Bool */;
-short int var83 /* : Bool */;
-int cltype84;
-int idtype85;
-const char* var_class_name86;
-short int var87 /* : Bool */;
-short int var_88 /* var : Bool */;
-long var89 /* : Int */;
-short int var90 /* : Bool */;
-short int var92 /* : Bool */;
-int cltype93;
-int idtype94;
-const char* var_class_name95;
+int cltype81;
+int idtype82;
+const char* var_class_name83;
+short int var84 /* : Bool */;
+val* var85 /* : FlatString */;
+val* var_fc /* var fc: FlatString */;
+long var86 /* : Int */;
+long var87 /* : Int */;
+short int var89 /* : Bool */;
+int cltype90;
+int idtype91;
+const char* var_class_name92;
+long var93 /* : Int */;
+short int var94 /* : Bool */;
 short int var96 /* : Bool */;
-val* var97 /* : FlatString */;
-long var98 /* : Int */;
+int cltype97;
+int idtype98;
+const char* var_class_name99;
 short int var100 /* : Bool */;
-int cltype101;
-int idtype102;
-const char* var_class_name103;
-long var104 /* : Int */;
-long var105 /* : Int */;
-short int var107 /* : Bool */;
-int cltype108;
-int idtype109;
-const char* var_class_name110;
-long var111 /* : Int */;
-val* var112 /* : String */;
-val* var113 /* : String */;
-val* var_lft /* var lft: String */;
+long var101 /* : Int */;
+short int var103 /* : Bool */;
+int cltype104;
+int idtype105;
+const char* var_class_name106;
+long var107 /* : Int */;
+long var108 /* : Int */;
+short int var110 /* : Bool */;
+int cltype111;
+int idtype112;
+const char* var_class_name113;
 long var114 /* : Int */;
+val* var115 /* : String */;
+val* var116 /* : String */;
+val* var_lft /* var lft: String */;
+long var117 /* : Int */;
 long var_llen /* var llen: Int */;
-short int var115 /* : Bool */;
-short int var117 /* : Bool */;
-int cltype118;
-int idtype119;
-const char* var_class_name120;
-short int var121 /* : Bool */;
-long var122 /* : Int */;
+short int var118 /* : Bool */;
+short int var120 /* : Bool */;
+int cltype121;
+int idtype122;
+const char* var_class_name123;
 short int var124 /* : Bool */;
-int cltype125;
-int idtype126;
-const char* var_class_name127;
-long var128 /* : Int */;
-short int var129 /* : Bool */;
-short int var131 /* : Bool */;
-int cltype132;
-int idtype133;
-const char* var_class_name134;
-short int var135 /* : Bool */;
-val* var136 /* : Text */;
-long var137 /* : Int */;
-short int var139 /* : Bool */;
-int cltype140;
-int idtype141;
-const char* var_class_name142;
-long var143 /* : Int */;
-long var_lsublen /* var lsublen: Int */;
-val* var144 /* : Text */;
-val* var145 /* : String */;
+long var125 /* : Int */;
+short int var127 /* : Bool */;
+int cltype128;
+int idtype129;
+const char* var_class_name130;
+long var131 /* : Int */;
+short int var132 /* : Bool */;
+short int var134 /* : Bool */;
+int cltype135;
+int idtype136;
+const char* var_class_name137;
+short int var138 /* : Bool */;
+val* var139 /* : Text */;
+long var140 /* : Int */;
+short int var142 /* : Bool */;
+int cltype143;
+int idtype144;
+const char* var_class_name145;
 long var146 /* : Int */;
-short int var148 /* : Bool */;
-int cltype149;
-int idtype150;
-const char* var_class_name151;
-long var152 /* : Int */;
-val* var153 /* : Text */;
-val* var154 /* : String */;
-val* var155 /* : String */;
-long var156 /* : Int */;
-short int var158 /* : Bool */;
-int cltype159;
-int idtype160;
-const char* var_class_name161;
-long var162 /* : Int */;
-val* var163 /* : Text */;
+long var_lsublen /* var lsublen: Int */;
+val* var147 /* : Text */;
+val* var148 /* : String */;
+long var149 /* : Int */;
+short int var151 /* : Bool */;
+int cltype152;
+int idtype153;
+const char* var_class_name154;
+long var155 /* : Int */;
+val* var156 /* : Text */;
+val* var157 /* : Text */;
+val* var158 /* : String */;
+long var159 /* : Int */;
+short int var161 /* : Bool */;
+int cltype162;
+int idtype163;
+const char* var_class_name164;
+long var165 /* : Int */;
+val* var166 /* : Text */;
 var_from = p0;
 var_count = p1;
 {
-{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
+{ /* Inline kernel$Int$< (var_from,0l) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var3 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var3)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var4 = var_from < 0l;
@@ -1230,14 +1099,14 @@ RET_LABEL2:(void)0;
 }
 if (var1){
 {
-{ /* Inline kernel#Int#+ (var_count,var_from) on <var_count:Int> */
+{ /* Inline kernel$Int$+ (var_count,var_from) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
 var7 = 1; /* easy <var_from:Int> isa OTHER*/
 if (unlikely(!var7)) {
 var_class_name10 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name10);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var11 = var_count + var_from;
@@ -1248,14 +1117,14 @@ RET_LABEL6:(void)0;
 }
 var_count = var5;
 {
-{ /* Inline kernel#Int#< (var_count,0l) on <var_count:Int> */
+{ /* Inline kernel$Int$< (var_count,0l) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var14 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var14)) {
 var_class_name17 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var18 = var_count < 0l;
@@ -1269,7 +1138,11 @@ if (likely(varonce!=NULL)) {
 var19 = varonce;
 } else {
 var20 = "";
-var21 = core__flat___NativeString___to_s_full(var20, 0l, 0l);
+var22 = (val*)(0l<<2|1);
+var23 = (val*)(0l<<2|1);
+var24 = (val*)((long)(0)<<2|3);
+var25 = (val*)((long)(0)<<2|3);
+var21 = core__flat___CString___to_s_unsafe(var20, var22, var23, var24, var25);
 var19 = var21;
 varonce = var19;
 }
@@ -1280,430 +1153,438 @@ goto RET_LABEL;
 var_from = 0l;
 } else {
 }
+var26 = self->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <self:Concat> */
+var_ln = var26;
 {
-{ /* Inline ropes#Concat#length (self) on <self:Concat> */
-var24 = self->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <self:Concat> */
-var22 = var24;
-RET_LABEL23:(void)0;
-}
-}
-var_ln = var22;
-{
-{ /* Inline kernel#Int#+ (var_count,var_from) on <var_count:Int> */
+{ /* Inline kernel$Int$+ (var_count,var_from) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var27 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var27)) {
-var_class_name30 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var29 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var29)) {
+var_class_name32 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name32);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var31 = var_count + var_from;
-var25 = var31;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+var33 = var_count + var_from;
+var27 = var33;
+goto RET_LABEL28;
+RET_LABEL28:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#> (var25,var_ln) on <var25:Int> */
+{ /* Inline kernel$Int$> (var27,var_ln) on <var27:Int> */
 /* Covariant cast for argument 0 (i) <var_ln:Int> isa OTHER */
 /* <var_ln:Int> isa OTHER */
-var34 = 1; /* easy <var_ln:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+var36 = 1; /* easy <var_ln:Int> isa OTHER*/
+if (unlikely(!var36)) {
+var_class_name39 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name39);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
-var38 = var25 > var_ln;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var40 = var27 > var_ln;
+var34 = var40;
+goto RET_LABEL35;
+RET_LABEL35:(void)0;
 }
 }
-if (var32){
+if (var34){
 {
-{ /* Inline kernel#Int#- (var_ln,var_from) on <var_ln:Int> */
+{ /* Inline kernel$Int$- (var_ln,var_from) on <var_ln:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var41 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var41)) {
-var_class_name44 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name44);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var43 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var43)) {
+var_class_name46 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name46);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var45 = var_ln - var_from;
-var39 = var45;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
+var47 = var_ln - var_from;
+var41 = var47;
+goto RET_LABEL42;
+RET_LABEL42:(void)0;
 }
 }
-var_count = var39;
+var_count = var41;
 } else {
 }
 {
-{ /* Inline kernel#Int#<= (var_count,0l) on <var_count:Int> */
+{ /* Inline kernel$Int$<= (var_count,0l) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
-var48 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var48)) {
-var_class_name51 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name51);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+var50 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var50)) {
+var_class_name53 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name53);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
-var52 = var_count <= 0l;
-var46 = var52;
-goto RET_LABEL47;
-RET_LABEL47:(void)0;
+var54 = var_count <= 0l;
+var48 = var54;
+goto RET_LABEL49;
+RET_LABEL49:(void)0;
 }
 }
-if (var46){
-if (likely(varonce53!=NULL)) {
-var54 = varonce53;
+if (var48){
+if (likely(varonce55!=NULL)) {
+var56 = varonce55;
 } else {
-var55 = "";
-var56 = core__flat___NativeString___to_s_full(var55, 0l, 0l);
-var54 = var56;
-varonce53 = var54;
-}
-var = var54;
+var57 = "";
+var59 = (val*)(0l<<2|1);
+var60 = (val*)(0l<<2|1);
+var61 = (val*)((long)(0)<<2|3);
+var62 = (val*)((long)(0)<<2|3);
+var58 = core__flat___CString___to_s_unsafe(var57, var59, var60, var61, var62);
+var56 = var58;
+varonce55 = var56;
+}
+var = var56;
 goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#+ (var_from,var_count) on <var_from:Int> */
+{ /* Inline kernel$Int$+ (var_from,var_count) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
 /* <var_count:Int> isa OTHER */
-var59 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var59)) {
-var_class_name62 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name62);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var65 = 1; /* easy <var_count:Int> isa OTHER*/
+if (unlikely(!var65)) {
+var_class_name68 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name68);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var63 = var_from + var_count;
-var57 = var63;
-goto RET_LABEL58;
-RET_LABEL58:(void)0;
+var69 = var_from + var_count;
+var63 = var69;
+goto RET_LABEL64;
+RET_LABEL64:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var57,1l) on <var57:Int> */
+{ /* Inline kernel$Int$- (var63,1l) on <var63:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
-var66 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var66)) {
-var_class_name69 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name69);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var72 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var72)) {
+var_class_name75 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var70 = var57 - 1l;
-var64 = var70;
-goto RET_LABEL65;
-RET_LABEL65:(void)0;
-}
-}
-var_end_index = var64;
-var71 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
-var_flps = var71;
-{
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
-var76 = -1l;
-var74 = var76;
-goto RET_LABEL75;
-RET_LABEL75:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#!= (var_flps,var74) on <var_flps:Int> */
-var79 = var_flps == var74;
-var80 = !var79;
-var77 = var80;
-goto RET_LABEL78;
-RET_LABEL78:(void)0;
+var76 = var63 - 1l;
+var70 = var76;
+goto RET_LABEL71;
+RET_LABEL71:(void)0;
 }
 }
-var_ = var77;
-if (var77){
+var_end_index = var70;
+var77 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_start].l; /* _flat_last_pos_start on <self:Concat> */
+var_flps = var77;
 {
-{ /* Inline kernel#Int#>= (var_from,var_flps) on <var_from:Int> */
+{ /* Inline kernel$Int$>= (var_from,var_flps) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var83 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var83)) {
-var_class_name86 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name86);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+var80 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var80)) {
+var_class_name83 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name83);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var87 = var_from >= var_flps;
-var81 = var87;
-goto RET_LABEL82;
-RET_LABEL82:(void)0;
+var84 = var_from >= var_flps;
+var78 = var84;
+goto RET_LABEL79;
+RET_LABEL79:(void)0;
 }
 }
-var73 = var81;
-} else {
-var73 = var_;
-}
-var_88 = var73;
-if (var73){
-var89 = self->attrs[COLOR_core__ropes__Concat___flat_last_pos_end].l; /* _flat_last_pos_end on <self:Concat> */
-{
-{ /* Inline kernel#Int#<= (var_end_index,var89) on <var_end_index:Int> */
-/* Covariant cast for argument 0 (i) <var89:Int> isa OTHER */
-/* <var89:Int> isa OTHER */
-var92 = 1; /* easy <var89:Int> isa OTHER*/
-if (unlikely(!var92)) {
-var_class_name95 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name95);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+if (var78){
+var85 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
+if (unlikely(var85 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 182);
 fatal_exit(1);
 }
-var96 = var_end_index <= var89;
-var90 = var96;
-goto RET_LABEL91;
-RET_LABEL91:(void)0;
+var_fc = var85;
+var86 = var_fc->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_fc:FlatString> */
+{
+{ /* Inline kernel$Int$+ (var_flps,var86) on <var_flps:Int> */
+/* Covariant cast for argument 0 (i) <var86:Int> isa OTHER */
+/* <var86:Int> isa OTHER */
+var89 = 1; /* easy <var86:Int> isa OTHER*/
+if (unlikely(!var89)) {
+var_class_name92 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name92);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
 }
+var93 = var_flps + var86;
+var87 = var93;
+goto RET_LABEL88;
+RET_LABEL88:(void)0;
 }
-var72 = var90;
-} else {
-var72 = var_88;
 }
-if (var72){
-var97 = self->attrs[COLOR_core__ropes__Concat___flat_cache].val; /* _flat_cache on <self:Concat> */
-if (unlikely(var97 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _flat_cache");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 182);
+{
+{ /* Inline kernel$Int$< (var_end_index,var87) on <var_end_index:Int> */
+/* Covariant cast for argument 0 (i) <var87:Int> isa OTHER */
+/* <var87:Int> isa OTHER */
+var96 = 1; /* easy <var87:Int> isa OTHER*/
+if (unlikely(!var96)) {
+var_class_name99 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name99);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
+var100 = var_end_index < var87;
+var94 = var100;
+goto RET_LABEL95;
+RET_LABEL95:(void)0;
+}
+}
+if (var94){
 {
-{ /* Inline kernel#Int#- (var_from,var_flps) on <var_from:Int> */
+{ /* Inline kernel$Int$- (var_from,var_flps) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var100 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var100)) {
-var_class_name103 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name103);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var103 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var103)) {
+var_class_name106 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name106);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var104 = var_from - var_flps;
-var98 = var104;
-goto RET_LABEL99;
-RET_LABEL99:(void)0;
+var107 = var_from - var_flps;
+var101 = var107;
+goto RET_LABEL102;
+RET_LABEL102:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var_end_index,var_flps) on <var_end_index:Int> */
+{ /* Inline kernel$Int$- (var_end_index,var_flps) on <var_end_index:Int> */
 /* Covariant cast for argument 0 (i) <var_flps:Int> isa OTHER */
 /* <var_flps:Int> isa OTHER */
-var107 = 1; /* easy <var_flps:Int> isa OTHER*/
-if (unlikely(!var107)) {
-var_class_name110 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name110);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var110 = 1; /* easy <var_flps:Int> isa OTHER*/
+if (unlikely(!var110)) {
+var_class_name113 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name113);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var111 = var_end_index - var_flps;
-var105 = var111;
-goto RET_LABEL106;
-RET_LABEL106:(void)0;
+var114 = var_end_index - var_flps;
+var108 = var114;
+goto RET_LABEL109;
+RET_LABEL109:(void)0;
 }
 }
 {
-var112 = core___core__FlatString___substring_impl(var97, var98, var_count, var105);
+var115 = ((val*(*)(val* self, long p0, long p1, long p2))(var_fc->class->vft[COLOR_core__flat__FlatString__substring_impl]))(var_fc, var101, var_count, var108); /* substring_impl on <var_fc:FlatString>*/
 }
-var = var112;
+var = var115;
 goto RET_LABEL;
 } else {
 }
-var113 = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
-if (unlikely(var113 == NULL)) {
+} else {
+}
+var116 = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
+if (unlikely(var116 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 185);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 188);
 fatal_exit(1);
 }
-var_lft = var113;
+var_lft = var116;
 {
-var114 = ((long(*)(val* self))(var_lft->class->vft[COLOR_core__abstract_text__Text__length]))(var_lft); /* length on <var_lft:String>*/
+var117 = ((long(*)(val* self))(var_lft->class->vft[COLOR_core__abstract_text__Text__length]))(var_lft); /* length on <var_lft:String>*/
 }
-var_llen = var114;
+var_llen = var117;
 {
-{ /* Inline kernel#Int#< (var_from,var_llen) on <var_from:Int> */
+{ /* Inline kernel$Int$< (var_from,var_llen) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_llen:Int> isa OTHER */
 /* <var_llen:Int> isa OTHER */
-var117 = 1; /* easy <var_llen:Int> isa OTHER*/
-if (unlikely(!var117)) {
-var_class_name120 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name120);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+var120 = 1; /* easy <var_llen:Int> isa OTHER*/
+if (unlikely(!var120)) {
+var_class_name123 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name123);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var121 = var_from < var_llen;
-var115 = var121;
-goto RET_LABEL116;
-RET_LABEL116:(void)0;
+var124 = var_from < var_llen;
+var118 = var124;
+goto RET_LABEL119;
+RET_LABEL119:(void)0;
 }
 }
-if (var115){
+if (var118){
 {
-{ /* Inline kernel#Int#+ (var_from,var_count) on <var_from:Int> */
+{ /* Inline kernel$Int$+ (var_from,var_count) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_count:Int> isa OTHER */
 /* <var_count:Int> isa OTHER */
-var124 = 1; /* easy <var_count:Int> isa OTHER*/
-if (unlikely(!var124)) {
-var_class_name127 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name127);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var127 = 1; /* easy <var_count:Int> isa OTHER*/
+if (unlikely(!var127)) {
+var_class_name130 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name130);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var128 = var_from + var_count;
-var122 = var128;
-goto RET_LABEL123;
-RET_LABEL123:(void)0;
+var131 = var_from + var_count;
+var125 = var131;
+goto RET_LABEL126;
+RET_LABEL126:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#< (var122,var_llen) on <var122:Int> */
+{ /* Inline kernel$Int$< (var125,var_llen) on <var125:Int> */
 /* Covariant cast for argument 0 (i) <var_llen:Int> isa OTHER */
 /* <var_llen:Int> isa OTHER */
-var131 = 1; /* easy <var_llen:Int> isa OTHER*/
-if (unlikely(!var131)) {
-var_class_name134 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name134);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+var134 = 1; /* easy <var_llen:Int> isa OTHER*/
+if (unlikely(!var134)) {
+var_class_name137 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name137);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var135 = var122 < var_llen;
-var129 = var135;
-goto RET_LABEL130;
-RET_LABEL130:(void)0;
+var138 = var125 < var_llen;
+var132 = var138;
+goto RET_LABEL133;
+RET_LABEL133:(void)0;
 }
 }
-if (var129){
+if (var132){
 {
-var136 = ((val*(*)(val* self, long p0, long p1))(var_lft->class->vft[COLOR_core__abstract_text__Text__substring]))(var_lft, var_from, var_count); /* substring on <var_lft:String>*/
+var139 = ((val*(*)(val* self, long p0, long p1))(var_lft->class->vft[COLOR_core__abstract_text__Text__substring]))(var_lft, var_from, var_count); /* substring on <var_lft:String>*/
 }
-var = var136;
+var = var139;
 goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline kernel#Int#- (var_llen,var_from) on <var_llen:Int> */
+{ /* Inline kernel$Int$- (var_llen,var_from) on <var_llen:Int> */
 /* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
 /* <var_from:Int> isa OTHER */
-var139 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var139)) {
-var_class_name142 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name142);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var142 = 1; /* easy <var_from:Int> isa OTHER*/
+if (unlikely(!var142)) {
+var_class_name145 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name145);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var143 = var_llen - var_from;
-var137 = var143;
-goto RET_LABEL138;
-RET_LABEL138:(void)0;
+var146 = var_llen - var_from;
+var140 = var146;
+goto RET_LABEL141;
+RET_LABEL141:(void)0;
 }
 }
-var_lsublen = var137;
+var_lsublen = var140;
 {
-var144 = ((val*(*)(val* self, long p0))(var_lft->class->vft[COLOR_core__abstract_text__Text__substring_from]))(var_lft, var_from); /* substring_from on <var_lft:String>*/
+var147 = ((val*(*)(val* self, long p0))(var_lft->class->vft[COLOR_core__abstract_text__Text__substring_from]))(var_lft, var_from); /* substring_from on <var_lft:String>*/
+}
+var148 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
+if (unlikely(var148 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var145 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
-if (unlikely(var145 == NULL)) {
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 190);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 193);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Int#- (var_count,var_lsublen) on <var_count:Int> */
+{ /* Inline kernel$Int$- (var_count,var_lsublen) on <var_count:Int> */
 /* Covariant cast for argument 0 (i) <var_lsublen:Int> isa OTHER */
 /* <var_lsublen:Int> isa OTHER */
-var148 = 1; /* easy <var_lsublen:Int> isa OTHER*/
-if (unlikely(!var148)) {
-var_class_name151 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name151);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var151 = 1; /* easy <var_lsublen:Int> isa OTHER*/
+if (unlikely(!var151)) {
+var_class_name154 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name154);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var152 = var_count - var_lsublen;
-var146 = var152;
-goto RET_LABEL147;
-RET_LABEL147:(void)0;
+var155 = var_count - var_lsublen;
+var149 = var155;
+goto RET_LABEL150;
+RET_LABEL150:(void)0;
 }
 }
 {
-var153 = ((val*(*)(val* self, long p0, long p1))(var145->class->vft[COLOR_core__abstract_text__Text__substring]))(var145, 0l, var146); /* substring on <var145:String>*/
+var156 = ((val*(*)(val* self, long p0, long p1))(var148->class->vft[COLOR_core__abstract_text__Text__substring]))(var148, 0l, var149); /* substring on <var148:String>*/
 }
 {
-var154 = ((val*(*)(val* self, val* p0))(var144->class->vft[COLOR_core__abstract_text__String___43d]))(var144, var153); /* + on <var144:Text(String)>*/
+var157 = ((val*(*)(val* self, val* p0))(var147->class->vft[COLOR_core__abstract_text__Text___43d]))(var147, var156); /* + on <var147:Text(String)>*/
 }
-var = var154;
+var = var157;
 goto RET_LABEL;
 } else {
-var155 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
-if (unlikely(var155 == NULL)) {
+var158 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
+if (unlikely(var158 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 192);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 195);
 fatal_exit(1);
 }
 {
-{ /* Inline kernel#Int#- (var_from,var_llen) on <var_from:Int> */
+{ /* Inline kernel$Int$- (var_from,var_llen) on <var_from:Int> */
 /* Covariant cast for argument 0 (i) <var_llen:Int> isa OTHER */
 /* <var_llen:Int> isa OTHER */
-var158 = 1; /* easy <var_llen:Int> isa OTHER*/
-if (unlikely(!var158)) {
-var_class_name161 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name161);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+var161 = 1; /* easy <var_llen:Int> isa OTHER*/
+if (unlikely(!var161)) {
+var_class_name164 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name164);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var162 = var_from - var_llen;
-var156 = var162;
-goto RET_LABEL157;
-RET_LABEL157:(void)0;
+var165 = var_from - var_llen;
+var159 = var165;
+goto RET_LABEL160;
+RET_LABEL160:(void)0;
 }
 }
 {
-var163 = ((val*(*)(val* self, long p0, long p1))(var155->class->vft[COLOR_core__abstract_text__Text__substring]))(var155, var156, var_count); /* substring on <var155:String>*/
+var166 = ((val*(*)(val* self, long p0, long p1))(var158->class->vft[COLOR_core__abstract_text__Text__substring]))(var158, var159, var_count); /* substring on <var158:String>*/
 }
-var = var163;
+var = var166;
 goto RET_LABEL;
 }
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#to_upper for (self: Concat): String */
-val* core__ropes___core__ropes__Concat___core__abstract_text__String__to_upper(val* self) {
+/* method ropes$Concat$to_upper for (self: Concat): String */
+val* core__ropes___core__ropes__Concat___core__abstract_text__Text__to_upper(val* self) {
 val* var /* : String */;
 val* var1 /* : Concat */;
 val* var2 /* : String */;
-val* var3 /* : String */;
+val* var3 /* : Text */;
 val* var4 /* : String */;
-val* var5 /* : String */;
+val* var5 /* : Text */;
 var1 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 var2 = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
 if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 206);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 209);
 fatal_exit(1);
 }
 {
-var3 = ((val*(*)(val* self))(var2->class->vft[COLOR_core__abstract_text__String__to_upper]))(var2); /* to_upper on <var2:String>*/
+var3 = ((val*(*)(val* self))(var2->class->vft[COLOR_core__abstract_text__Text__to_upper]))(var2); /* to_upper on <var2:String>*/
 }
 var4 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
 if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 206);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 209);
 fatal_exit(1);
 }
 {
-var5 = ((val*(*)(val* self))(var4->class->vft[COLOR_core__abstract_text__String__to_upper]))(var4); /* to_upper on <var4:String>*/
+var5 = ((val*(*)(val* self))(var4->class->vft[COLOR_core__abstract_text__Text__to_upper]))(var4); /* to_upper on <var4:String>*/
 }
 {
 ((void(*)(val* self, val* p0))(var1->class->vft[COLOR_core__ropes__Concat__left_61d]))(var1, var3); /* left= on <var1:Concat>*/
@@ -1719,32 +1600,38 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#to_lower for (self: Concat): String */
-val* core__ropes___core__ropes__Concat___core__abstract_text__String__to_lower(val* self) {
+/* method ropes$Concat$to_lower for (self: Concat): String */
+val* core__ropes___core__ropes__Concat___core__abstract_text__Text__to_lower(val* self) {
 val* var /* : String */;
 val* var1 /* : Concat */;
 val* var2 /* : String */;
-val* var3 /* : String */;
+val* var3 /* : Text */;
 val* var4 /* : String */;
-val* var5 /* : String */;
+val* var5 /* : Text */;
 var1 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 var2 = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
 if (unlikely(var2 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 208);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 211);
 fatal_exit(1);
 }
 {
-var3 = ((val*(*)(val* self))(var2->class->vft[COLOR_core__abstract_text__String__to_lower]))(var2); /* to_lower on <var2:String>*/
+var3 = ((val*(*)(val* self))(var2->class->vft[COLOR_core__abstract_text__Text__to_lower]))(var2); /* to_lower on <var2:String>*/
 }
 var4 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
 if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 208);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 211);
 fatal_exit(1);
 }
 {
-var5 = ((val*(*)(val* self))(var4->class->vft[COLOR_core__abstract_text__String__to_lower]))(var4); /* to_lower on <var4:String>*/
+var5 = ((val*(*)(val* self))(var4->class->vft[COLOR_core__abstract_text__Text__to_lower]))(var4); /* to_lower on <var4:String>*/
 }
 {
 ((void(*)(val* self, val* p0))(var1->class->vft[COLOR_core__ropes__Concat__left_61d]))(var1, var3); /* left= on <var1:Concat>*/
@@ -1760,8 +1647,8 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#+ for (self: Concat, Text): String */
-val* core__ropes___core__ropes__Concat___core__abstract_text__String___43d(val* self, val* p0) {
+/* method ropes$Concat$+ for (self: Concat, Text): String */
+val* core__ropes___core__ropes__Concat___core__abstract_text__Text___43d(val* self, val* p0) {
 val* var /* : String */;
 val* var_o /* var o: Text */;
 val* var1 /* : String */;
@@ -1793,14 +1680,14 @@ short int var21 /* : Bool */;
 val* var22 /* : Concat */;
 val* var23 /* : Concat */;
 val* var24 /* : String */;
-val* var25 /* : String */;
+val* var25 /* : Text */;
 var_o = p0;
 {
 var1 = ((val*(*)(val* self))(var_o->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_o); /* to_s on <var_o:Text>*/
 }
 var_s = var1;
 {
-var2 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_s); /* bytelen on <var_s:String>*/
+var2 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_s); /* byte_length on <var_s:String>*/
 }
 var_slen = var2;
 /* <var_s:String> isa Concat */
@@ -1827,24 +1714,27 @@ goto RET_LABEL;
 } else {
 var5 = self->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <self:Concat> */
 if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 216);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 219);
 fatal_exit(1);
 }
 var_r = var5;
 {
-var6 = ((long(*)(val* self))(var_r->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_r); /* bytelen on <var_r:String>*/
+var6 = ((long(*)(val* self))(var_r->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_r); /* byte_length on <var_r:String>*/
 }
 var_rlen = var6;
 {
-{ /* Inline kernel#Int#+ (var_rlen,var_slen) on <var_rlen:Int> */
+{ /* Inline kernel$Int$+ (var_rlen,var_slen) on <var_rlen:Int> */
 /* Covariant cast for argument 0 (i) <var_slen:Int> isa OTHER */
 /* <var_slen:Int> isa OTHER */
 var9 = 1; /* easy <var_slen:Int> isa OTHER*/
 if (unlikely(!var9)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var12 = var_rlen + var_slen;
@@ -1858,14 +1748,14 @@ var13 = glob_sys;
 var14 = core__ropes___Sys___maxlen(var13);
 }
 {
-{ /* Inline kernel#Int#> (var7,var14) on <var7:Int> */
+{ /* Inline kernel$Int$> (var7,var14) on <var7:Int> */
 /* Covariant cast for argument 0 (i) <var14:Int> isa OTHER */
 /* <var14:Int> isa OTHER */
 var17 = 1; /* easy <var14:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var21 = var7 > var14;
@@ -1892,12 +1782,15 @@ goto RET_LABEL;
 var23 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 var24 = self->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <self:Concat> */
 if (unlikely(var24 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 219);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 222);
 fatal_exit(1);
 }
 {
-var25 = ((val*(*)(val* self, val* p0))(var_r->class->vft[COLOR_core__abstract_text__String___43d]))(var_r, var_s); /* + on <var_r:String>*/
+var25 = ((val*(*)(val* self, val* p0))(var_r->class->vft[COLOR_core__abstract_text__Text___43d]))(var_r, var_s); /* + on <var_r:String>*/
 }
 {
 ((void(*)(val* self, val* p0))(var23->class->vft[COLOR_core__ropes__Concat__left_61d]))(var23, var24); /* left= on <var23:Concat>*/
@@ -1914,7 +1807,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#balance for (self: Concat): String */
+/* method ropes$Concat$balance for (self: Concat): String */
 val* core__ropes___core__ropes__Concat___balance(val* self) {
 val* var /* : String */;
 val* var1 /* : Array[String] */;
@@ -1952,7 +1845,7 @@ long var37 /* : Int */;
 val* var38 /* : String */;
 var1 = NEW_core__Array(&type_core__Array__core__String);
 {
-core___core__Array___core__kernel__Object__init(var1); /* Direct call array#Array#init on <var1:Array[String]>*/
+core___core__Array___core__kernel__Object__init(var1); /* Direct call array$Array$init on <var1:Array[String]>*/
 }
 var_children = var1;
 var2 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
@@ -1979,10 +1872,10 @@ var3 = 1; /* is null */
 var3 = 0; /* arg is null but recv is not */
 }
 if (0) {
-{ /* Inline kernel#Object#== (var_iter,((val*)NULL)) on <var_iter:nullable RopeCharIteratorPiece> */
+{ /* Inline kernel$Object$== (var_iter,((val*)NULL)) on <var_iter:nullable RopeCharIteratorPiece> */
 var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Object#is_same_instance (var_iter,var_other) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline kernel$Object$is_same_instance (var_iter,var_other) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var8 = var_iter == var_other;
 var6 = var8;
 goto RET_LABEL7;
@@ -2000,11 +1893,14 @@ goto BREAK_label;
 } else {
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#node (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$node (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var11 = var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 if (unlikely(var11 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
 fatal_exit(1);
 }
 var9 = var11;
@@ -2023,10 +1919,10 @@ var12 = var_rnod->type->type_table[cltype] == idtype;
 var13 = !var12;
 if (var13){
 {
-core___core__AbstractArray___core__abstract_collection__Sequence__push(var_children, var_rnod); /* Direct call array#AbstractArray#push on <var_children:Array[String]>*/
+core___core__AbstractArray___core__abstract_collection__Sequence__push(var_children, var_rnod); /* Direct call array$AbstractArray$push on <var_children:Array[String]>*/
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var16 = var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var14 = var16;
 RET_LABEL15:(void)0;
@@ -2037,7 +1933,7 @@ goto BREAK_label17;
 } else {
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$ldone (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var20 = var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var18 = var20;
 RET_LABEL19:(void)0;
@@ -2046,7 +1942,7 @@ RET_LABEL19:(void)0;
 var21 = !var18;
 if (var21){
 {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_iter,1) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_iter,1) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 RET_LABEL22:(void)0;
 }
@@ -2054,8 +1950,11 @@ RET_LABEL22:(void)0;
 var23 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
 var24 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
 if (unlikely(var24 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 258);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 254);
 fatal_exit(1);
 }
 {
@@ -2076,7 +1975,7 @@ fatal_exit(1);
 var_iter = var23;
 } else {
 {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$rdone (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var27 = var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var25 = var27;
 RET_LABEL26:(void)0;
@@ -2085,7 +1984,7 @@ RET_LABEL26:(void)0;
 var28 = !var25;
 if (var28){
 {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_iter,1) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_iter,1) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 RET_LABEL29:(void)0;
 }
@@ -2093,8 +1992,11 @@ RET_LABEL29:(void)0;
 var30 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
 var31 = var_rnod->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_rnod:String(Concat)> */
 if (unlikely(var31 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 261);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 257);
 fatal_exit(1);
 }
 {
@@ -2115,7 +2017,7 @@ fatal_exit(1);
 var_iter = var30;
 } else {
 {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var_iter) on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var34 = var_iter->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_iter:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
 var32 = var34;
 RET_LABEL33:(void)0;
@@ -2128,7 +2030,7 @@ BREAK_label17: (void)0;
 }
 BREAK_label: (void)0;
 {
-{ /* Inline array#AbstractArrayRead#length (var_children) on <var_children:Array[String]> */
+{ /* Inline array$AbstractArrayRead$length (var_children) on <var_children:Array[String]> */
 var37 = var_children->attrs[COLOR_core__array__AbstractArrayRead___length].l; /* _length on <var_children:Array[String]> */
 var35 = var37;
 RET_LABEL36:(void)0;
@@ -2142,7 +2044,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#Concat#recurse_balance for (self: Concat, Array[String], Int): String */
+/* method ropes$Concat$recurse_balance for (self: Concat, Array[String], Int): String */
 val* core__ropes___core__ropes__Concat___recurse_balance(val* self, val* p0, long p1) {
 val* var /* : String */;
 val* var_nodes /* var nodes: Array[String] */;
@@ -2205,14 +2107,14 @@ var_finpos = 0l;
 var_stpos = 0l;
 for(;;) {
 {
-{ /* Inline kernel#Int#< (var_stpos,var_len) on <var_stpos:Int> */
+{ /* Inline kernel$Int$< (var_stpos,var_len) on <var_stpos:Int> */
 /* Covariant cast for argument 0 (i) <var_len:Int> isa OTHER */
 /* <var_len:Int> isa OTHER */
 var3 = 1; /* easy <var_len:Int> isa OTHER*/
 if (unlikely(!var3)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
 var4 = var_stpos < var_len;
@@ -2223,14 +2125,14 @@ RET_LABEL2:(void)0;
 }
 if (var1){
 {
-{ /* Inline kernel#Int#- (var_len,var_stpos) on <var_len:Int> */
+{ /* Inline kernel$Int$- (var_len,var_stpos) on <var_len:Int> */
 /* Covariant cast for argument 0 (i) <var_stpos:Int> isa OTHER */
 /* <var_stpos:Int> isa OTHER */
 var7 = 1; /* easy <var_stpos:Int> isa OTHER*/
 if (unlikely(!var7)) {
 var_class_name10 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name10);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var11 = var_len - var_stpos;
@@ -2240,14 +2142,14 @@ RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#> (var5,1l) on <var5:Int> */
+{ /* Inline kernel$Int$> (var5,1l) on <var5:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var14 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var14)) {
 var_class_name17 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var18 = var5 > 1l;
@@ -2262,14 +2164,14 @@ var19 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 var20 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_nodes, var_stpos);
 }
 {
-{ /* Inline kernel#Int#+ (var_stpos,1l) on <var_stpos:Int> */
+{ /* Inline kernel$Int$+ (var_stpos,1l) on <var_stpos:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var23 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var23)) {
 var_class_name26 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var27 = var_stpos + 1l;
@@ -2291,17 +2193,17 @@ var28 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(v
 ((void(*)(val* self))(var19->class->vft[COLOR_core__kernel__Object__init]))(var19); /* init on <var19:Concat>*/
 }
 {
-core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_nodes, var_finpos, var19); /* Direct call array#Array#[]= on <var_nodes:Array[String]>*/
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_nodes, var_finpos, var19); /* Direct call array$Array$[]= on <var_nodes:Array[String]>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_stpos,2l) on <var_stpos:Int> */
+{ /* Inline kernel$Int$+ (var_stpos,2l) on <var_stpos:Int> */
 /* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
 /* <2l:Int> isa OTHER */
 var31 = 1; /* easy <2l:Int> isa OTHER*/
 if (unlikely(!var31)) {
 var_class_name34 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var35 = var_stpos + 2l;
@@ -2316,17 +2218,17 @@ var_stpos = var29;
 var36 = core___core__Array___core__abstract_collection__SequenceRead___91d_93d(var_nodes, var_stpos);
 }
 {
-core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_nodes, var_finpos, var36); /* Direct call array#Array#[]= on <var_nodes:Array[String]>*/
+core___core__Array___core__abstract_collection__Sequence___91d_93d_61d(var_nodes, var_finpos, var36); /* Direct call array$Array$[]= on <var_nodes:Array[String]>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_stpos,1l) on <var_stpos:Int> */
+{ /* Inline kernel$Int$+ (var_stpos,1l) on <var_stpos:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var39 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var39)) {
 var_class_name42 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name42);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var43 = var_stpos + 1l;
@@ -2338,14 +2240,14 @@ RET_LABEL38:(void)0;
 var_stpos = var37;
 }
 {
-{ /* Inline kernel#Int#+ (var_finpos,1l) on <var_finpos:Int> */
+{ /* Inline kernel$Int$+ (var_finpos,1l) on <var_finpos:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var46 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var46)) {
 var_class_name49 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name49);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var50 = var_finpos + 1l;
@@ -2361,7 +2263,7 @@ goto BREAK_label;
 }
 BREAK_label: (void)0;
 {
-{ /* Inline kernel#Int#== (var_finpos,1l) on <var_finpos:Int> */
+{ /* Inline kernel$Int$== (var_finpos,1l) on <var_finpos:Int> */
 var53 = var_finpos == 1l;
 var51 = var53;
 goto RET_LABEL52;
@@ -2384,4635 +2286,645 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeBuffer#chars for (self: RopeBuffer): Sequence[Char] */
-val* core___core__RopeBuffer___core__abstract_text__Text__chars(val* self) {
-val* var /* : Sequence[Char] */;
-short int var1 /* : Bool */;
-val* var2 /* : Sequence[Char] */;
-val* var3 /* : Sequence[Char] */;
-val* var5 /* : RopeBufferChars */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___chars].val != NULL; /* _chars on <self:RopeBuffer> */
-if(likely(var1)) {
-var2 = self->attrs[COLOR_core__ropes__RopeBuffer___chars].val; /* _chars on <self:RopeBuffer> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _chars");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 306);
-fatal_exit(1);
-}
-} else {
-{
-var5 = NEW_core__RopeBufferChars(&type_core__RopeBufferChars);
-{
-((void(*)(val* self, val* p0))(var5->class->vft[COLOR_core__abstract_text__StringCharView__target_61d]))(var5, self); /* target= on <var5:RopeBufferChars>*/
-}
-{
-((void(*)(val* self))(var5->class->vft[COLOR_core__kernel__Object__init]))(var5); /* init on <var5:RopeBufferChars>*/
-}
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-self->attrs[COLOR_core__ropes__RopeBuffer___chars].val = var3; /* _chars on <self:RopeBuffer> */
-var2 = var3;
-}
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#bytes for (self: RopeBuffer): SequenceRead[Byte] */
-val* core___core__RopeBuffer___core__abstract_text__Text__bytes(val* self) {
-val* var /* : SequenceRead[Byte] */;
-short int var1 /* : Bool */;
-val* var2 /* : SequenceRead[Byte] */;
-val* var3 /* : SequenceRead[Byte] */;
-val* var5 /* : RopeBufferBytes */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___bytes].val != NULL; /* _bytes on <self:RopeBuffer> */
-if(likely(var1)) {
-var2 = self->attrs[COLOR_core__ropes__RopeBuffer___bytes].val; /* _bytes on <self:RopeBuffer> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _bytes");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 308);
-fatal_exit(1);
-}
-} else {
-{
-var5 = NEW_core__RopeBufferBytes(&type_core__RopeBufferBytes);
-{
-((void(*)(val* self, val* p0))(var5->class->vft[COLOR_core__abstract_text__StringByteView__target_61d]))(var5, self); /* target= on <var5:RopeBufferBytes>*/
-}
-{
-((void(*)(val* self))(var5->class->vft[COLOR_core__kernel__Object__init]))(var5); /* init on <var5:RopeBufferBytes>*/
-}
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-self->attrs[COLOR_core__ropes__RopeBuffer___bytes].val = var3; /* _bytes on <self:RopeBuffer> */
-var2 = var3;
-}
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#str for (self: RopeBuffer): String */
-val* core___core__RopeBuffer___str(val* self) {
+/* method ropes$FlatString$+ for (self: FlatString, Text): String */
+val* core__ropes___FlatString___core__abstract_text__Text___43d(val* self, val* p0) {
 val* var /* : String */;
+val* var_o /* var o: Text */;
 val* var1 /* : String */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#str= for (self: RopeBuffer, String) */
-void core___core__RopeBuffer___str_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeBuffer___str].val = p0; /* _str on <self:RopeBuffer> */
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#ns for (self: RopeBuffer): NativeString */
-char* core___core__RopeBuffer___ns(val* self) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#ns= for (self: RopeBuffer, NativeString) */
-void core___core__RopeBuffer___ns_61d(val* self, char* p0) {
-self->attrs[COLOR_core__ropes__RopeBuffer___ns].str = p0; /* _ns on <self:RopeBuffer> */
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#rpos for (self: RopeBuffer): Int */
-long core___core__RopeBuffer___rpos(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#rpos= for (self: RopeBuffer, Int) */
-void core___core__RopeBuffer___rpos_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = p0; /* _rpos on <self:RopeBuffer> */
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#dumped for (self: RopeBuffer): Int */
-long core___core__RopeBuffer___dumped(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#dumped= for (self: RopeBuffer, Int) */
-void core___core__RopeBuffer___dumped_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l = p0; /* _dumped on <self:RopeBuffer> */
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#length for (self: RopeBuffer): Int */
-long core___core__RopeBuffer___core__abstract_text__Text__length(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
+val* var_s /* var s: String */;
+long var2 /* : Int */;
+long var_slen /* var slen: Int */;
 long var3 /* : Int */;
-long var_st /* var st: Int */;
-val* var4 /* : String */;
-val* var6 /* : String */;
-long var7 /* : Int */;
-long var_len /* var len: Int */;
-long var8 /* : Int */;
+long var_mlen /* var mlen: Int */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
+short int var7 /* : Bool */;
+short int var9 /* : Bool */;
 long var10 /* : Int */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
+short int var12 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
+long var13 /* : Int */;
+long var_nlen /* var nlen: Int */;
 short int var14 /* : Bool */;
-char* var15 /* : NativeString */;
-char* var17 /* : NativeString */;
-unsigned char var18 /* : Byte */;
-unsigned char var20 /* : Byte */;
-long var21 /* : Int */;
-long var22 /* : Int */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-const char* var_class_name27;
+int cltype15;
+int idtype16;
+val* var17 /* : Sys */;
+long var18 /* : Int */;
+short int var19 /* : Bool */;
+short int var21 /* : Bool */;
+int cltype22;
+int idtype23;
+const char* var_class_name24;
+short int var25 /* : Bool */;
+val* var26 /* : Concat */;
+char* var27 /* : CString */;
+char* var_mits /* var mits: CString */;
 long var28 /* : Int */;
+long var_sifrom /* var sifrom: Int */;
 long var29 /* : Int */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-const char* var_class_name34;
-long var35 /* : Int */;
+long var_mifrom /* var mifrom: Int */;
+char* var30 /* : CString */;
+char* var_sits /* var sits: CString */;
+static char* varoncenew;
+static int varoncenew_guard;
+char* var31 /* : CString */;
+char* var32 /* : CString */;
+long var33 /* : Int */;
+short int var35 /* : Bool */;
+int cltype36;
+int idtype37;
+const char* var_class_name38;
+long var39 /* : Int */;
+char* var40 /* : CString */;
+char* var42 /* : CString */;
+char* var_ns /* var ns: CString */;
+static val* varoncenew45;
+static int varoncenew45_guard;
+val* var46 /* : FlatString */;
+val* var47 /* : FlatString */;
+long var48 /* : Int */;
+long var50 /* : Int */;
+long var51 /* : Int */;
+long var53 /* : Int */;
+long var54 /* : Int */;
+short int var56 /* : Bool */;
+int cltype57;
+int idtype58;
+const char* var_class_name59;
+long var60 /* : Int */;
+val* var61 /* : FlatString */;
+short int var62 /* : Bool */;
+int cltype63;
+int idtype64;
+val* var65 /* : String */;
+val* var_sl /* var sl: String */;
+long var66 /* : Int */;
+long var_sllen /* var sllen: Int */;
+long var67 /* : Int */;
+short int var69 /* : Bool */;
+int cltype70;
+int idtype71;
+const char* var_class_name72;
+long var73 /* : Int */;
+val* var74 /* : Sys */;
+long var75 /* : Int */;
+short int var76 /* : Bool */;
+short int var78 /* : Bool */;
+int cltype79;
+int idtype80;
+const char* var_class_name81;
+short int var82 /* : Bool */;
+val* var83 /* : Concat */;
+val* var84 /* : Concat */;
+val* var85 /* : String */;
+val* var86 /* : String */;
+var_o = p0;
 {
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var3 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
+var1 = ((val*(*)(val* self))(var_o->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_o); /* to_s on <var_o:Text>*/
 }
-var_st = var1;
+var_s = var1;
 {
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var6 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
+var2 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_s); /* byte_length on <var_s:String>*/
 }
+var_slen = var2;
+var3 = self->attrs[COLOR_core__abstract_text__FlatText___byte_length].l; /* _byte_length on <self:FlatString> */
+var_mlen = var3;
+{
+{ /* Inline kernel$Int$== (var_slen,0l) on <var_slen:Int> */
+var6 = var_slen == 0l;
 var4 = var6;
+goto RET_LABEL5;
 RET_LABEL5:(void)0;
 }
 }
-{
-var7 = ((long(*)(val* self))(var4->class->vft[COLOR_core__abstract_text__Text__length]))(var4); /* length on <var4:String>*/
+if (var4){
+var = self;
+goto RET_LABEL;
+} else {
 }
-var_len = var7;
-for(;;) {
 {
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var10 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var8 = var10;
-RET_LABEL9:(void)0;
+{ /* Inline kernel$Int$== (var_mlen,0l) on <var_mlen:Int> */
+var9 = var_mlen == 0l;
+var7 = var9;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
 }
+if (var7){
+var = var_s;
+goto RET_LABEL;
+} else {
+}
 {
-{ /* Inline kernel#Int#< (var_st,var8) on <var_st:Int> */
-/* Covariant cast for argument 0 (i) <var8:Int> isa OTHER */
-/* <var8:Int> isa OTHER */
-var13 = 1; /* easy <var8:Int> isa OTHER*/
-if (unlikely(!var13)) {
+{ /* Inline kernel$Int$+ (var_slen,var_mlen) on <var_slen:Int> */
+/* Covariant cast for argument 0 (i) <var_mlen:Int> isa OTHER */
+/* <var_mlen:Int> isa OTHER */
+var12 = 1; /* easy <var_mlen:Int> isa OTHER*/
+if (unlikely(!var12)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var14 = var_st < var8;
-var11 = var14;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
+var13 = var_slen + var_mlen;
+var10 = var13;
+goto RET_LABEL11;
+RET_LABEL11:(void)0;
 }
 }
-if (var11){
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var17 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var15 = var17;
-RET_LABEL16:(void)0;
+var_nlen = var10;
+/* <var_s:String> isa FlatString */
+cltype15 = type_core__FlatString.color;
+idtype16 = type_core__FlatString.id;
+if(cltype15 >= var_s->type->table_size) {
+var14 = 0;
+} else {
+var14 = var_s->type->type_table[cltype15] == idtype16;
 }
+if (var14){
+var17 = glob_sys;
+{
+var18 = core__ropes___Sys___maxlen(var17);
 }
 {
-{ /* Inline native#NativeString#[] (var15,var_st) on <var15:NativeString> */
-var20 = (unsigned char)((int)var15[var_st]);
-var18 = var20;
-goto RET_LABEL19;
-RET_LABEL19:(void)0;
+{ /* Inline kernel$Int$> (var_nlen,var18) on <var_nlen:Int> */
+/* Covariant cast for argument 0 (i) <var18:Int> isa OTHER */
+/* <var18:Int> isa OTHER */
+var21 = 1; /* easy <var18:Int> isa OTHER*/
+if (unlikely(!var21)) {
+var_class_name24 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+fatal_exit(1);
 }
+var25 = var_nlen > var18;
+var19 = var25;
+goto RET_LABEL20;
+RET_LABEL20:(void)0;
+}
+}
+if (var19){
+var26 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
+{
+((void(*)(val* self, val* p0))(var26->class->vft[COLOR_core__ropes__Concat__left_61d]))(var26, self); /* left= on <var26:Concat>*/
 }
 {
-var21 = core__native___Byte___u8len(var18);
+((void(*)(val* self, val* p0))(var26->class->vft[COLOR_core__ropes__Concat__right_61d]))(var26, var_s); /* right= on <var26:Concat>*/
 }
 {
-{ /* Inline kernel#Int#+ (var_st,var21) on <var_st:Int> */
-/* Covariant cast for argument 0 (i) <var21:Int> isa OTHER */
-/* <var21:Int> isa OTHER */
-var24 = 1; /* easy <var21:Int> isa OTHER*/
-if (unlikely(!var24)) {
-var_class_name27 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
+((void(*)(val* self))(var26->class->vft[COLOR_core__kernel__Object__init]))(var26); /* init on <var26:Concat>*/
 }
-var28 = var_st + var21;
-var22 = var28;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
+var = var26;
+goto RET_LABEL;
+} else {
 }
+var27 = self->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <self:FlatString> */
+var_mits = var27;
+var28 = var_s->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <var_s:String(FlatString)> */
+var_sifrom = var28;
+var29 = self->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <self:FlatString> */
+var_mifrom = var29;
+var30 = var_s->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_s:String(FlatString)> */
+var_sits = var30;
+if (likely(varoncenew_guard)) {
+var31 = varoncenew;
+} else {
+var32 = NULL/*special!*/;
+var31 = var32;
+varoncenew = var31;
+varoncenew_guard = 1;
 }
-var_st = var22;
 {
-{ /* Inline kernel#Int#+ (var_len,1l) on <var_len:Int> */
+{ /* Inline kernel$Int$+ (var_nlen,1l) on <var_nlen:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
-var31 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var31)) {
-var_class_name34 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+var35 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var35)) {
+var_class_name38 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name38);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var35 = var_len + 1l;
-var29 = var35;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
-}
-}
-var_len = var29;
-} else {
-goto BREAK_label;
-}
-}
-BREAK_label: (void)0;
-var = var_len;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
+var39 = var_nlen + 1l;
+var33 = var39;
+goto RET_LABEL34;
+RET_LABEL34:(void)0;
 }
-/* method ropes#RopeBuffer#bytelen for (self: RopeBuffer): Int */
-long core___core__RopeBuffer___core__abstract_text__Text__bytelen(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l; /* _bytelen on <self:RopeBuffer> */
-var = var1;
-RET_LABEL:;
-return var;
 }
-/* method ropes#RopeBuffer#buf_size for (self: RopeBuffer): Int */
-long core___core__RopeBuffer___buf_size(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var = var1;
-RET_LABEL:;
-return var;
+{
+{ /* Inline native$CString$new (var31,var33) on <var31:CString> */
+var42 = (char*)nit_alloc(var33);
+var40 = var42;
+goto RET_LABEL41;
+RET_LABEL41:(void)0;
 }
-/* method ropes#RopeBuffer#buf_size= for (self: RopeBuffer, Int) */
-void core___core__RopeBuffer___buf_size_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l = p0; /* _buf_size on <self:RopeBuffer> */
-RET_LABEL:;
 }
-/* method ropes#RopeBuffer#substrings for (self: RopeBuffer): Iterator[FlatText] */
-val* core___core__RopeBuffer___core__abstract_text__Text__substrings(val* self) {
-val* var /* : Iterator[FlatText] */;
-val* var1 /* : RopeBufSubstringIterator */;
-var1 = NEW_core__ropes__RopeBufSubstringIterator(&type_core__ropes__RopeBufSubstringIterator);
+var_ns = var40;
 {
-core__ropes___core__ropes__RopeBufSubstringIterator___from(var1, self); /* Direct call ropes#RopeBufSubstringIterator#from on <var1:RopeBufSubstringIterator>*/
+{ /* Inline native$CString$copy_to (var_mits,var_ns,var_mlen,var_mifrom,0l) on <var_mits:CString> */
+memmove(var_ns+0l,var_mits+var_mifrom,var_mlen);
+RET_LABEL43:(void)0;
 }
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method ropes#RopeBuffer#init for (self: RopeBuffer) */
-void core___core__RopeBuffer___core__kernel__Object__init(val* self) {
-char* var /* : NativeString */;
-val* var1 /* : Sys */;
-long var2 /* : Int */;
-char* var3 /* : NativeString */;
-char* var5 /* : NativeString */;
-val* var7 /* : Sys */;
-long var8 /* : Int */;
 {
-((void(*)(val* self))(self->class->vft[COLOR_core___core__RopeBuffer___core__kernel__Object__init]))(self); /* init on <self:RopeBuffer>*/
+{ /* Inline native$CString$copy_to (var_sits,var_ns,var_slen,var_sifrom,var_mlen) on <var_sits:CString> */
+memmove(var_ns+var_mlen,var_sits+var_sifrom,var_slen);
+RET_LABEL44:(void)0;
 }
-var = NULL/*special!*/;
-var1 = glob_sys;
-{
-var2 = core__ropes___Sys___maxlen(var1);
+}
+if (likely(varoncenew45_guard)) {
+var46 = varoncenew45;
+} else {
+var47 = NEW_core__FlatString(&type_core__FlatString);
+var46 = var47;
+varoncenew45 = var46;
+varoncenew45_guard = 1;
 }
 {
-{ /* Inline native#NativeString#new (var,var2) on <var:NativeString> */
-var5 = (char*)nit_alloc(var2);
-var3 = var5;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+{ /* Inline abstract_text$FlatText$length (self) on <self:FlatString> */
+var50 = self->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <self:FlatString> */
+var48 = var50;
+RET_LABEL49:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeBuffer#ns= (self,var3) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___ns].str = var3; /* _ns on <self:RopeBuffer> */
-RET_LABEL6:(void)0;
+{ /* Inline abstract_text$FlatText$length (var_s) on <var_s:String(FlatString)> */
+var53 = var_s->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_s:String(FlatString)> */
+var51 = var53;
+RET_LABEL52:(void)0;
 }
 }
-var7 = glob_sys;
 {
-var8 = core__ropes___Sys___maxlen(var7);
+{ /* Inline kernel$Int$+ (var48,var51) on <var48:Int> */
+/* Covariant cast for argument 0 (i) <var51:Int> isa OTHER */
+/* <var51:Int> isa OTHER */
+var56 = 1; /* easy <var51:Int> isa OTHER*/
+if (unlikely(!var56)) {
+var_class_name59 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name59);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
 }
-{
-{ /* Inline ropes#RopeBuffer#buf_size= (self,var8) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l = var8; /* _buf_size on <self:RopeBuffer> */
-RET_LABEL9:(void)0;
+var60 = var48 + var51;
+var54 = var60;
+goto RET_LABEL55;
+RET_LABEL55:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeBuffer#dumped= (self,0l) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l = 0l; /* _dumped on <self:RopeBuffer> */
-RET_LABEL10:(void)0;
+var61 = core___core__FlatString___full(var46, var_ns, var_nlen, 0l, var54);
+}
+var = var61;
+goto RET_LABEL;
+} else {
+/* <var_s:String> isa Concat */
+cltype63 = type_core__ropes__Concat.color;
+idtype64 = type_core__ropes__Concat.id;
+if(cltype63 >= var_s->type->table_size) {
+var62 = 0;
+} else {
+var62 = var_s->type->type_table[cltype63] == idtype64;
 }
+if (var62){
+var65 = var_s->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_s:String(Concat)> */
+if (unlikely(var65 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-RET_LABEL:;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
+fatal_exit(1);
 }
-/* method ropes#RopeBuffer#from for (self: RopeBuffer, String) */
-void core___core__RopeBuffer___from(val* self, val* p0) {
-val* var_str /* var str: String */;
-char* var /* : NativeString */;
-val* var2 /* : Sys */;
-long var3 /* : Int */;
-char* var4 /* : NativeString */;
-char* var6 /* : NativeString */;
-val* var8 /* : Sys */;
-long var9 /* : Int */;
-long var11 /* : Int */;
+var_sl = var65;
 {
-core___core__RopeBuffer___core__kernel__Object__init(self); /* Direct call ropes#RopeBuffer#init on <self:RopeBuffer>*/
+var66 = ((long(*)(val* self))(var_sl->class->vft[COLOR_core__abstract_text__Text__byte_length]))(var_sl); /* byte_length on <var_sl:String>*/
 }
-var_str = p0;
+var_sllen = var66;
 {
-{ /* Inline ropes#RopeBuffer#str= (self,var_str) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___str].val = var_str; /* _str on <self:RopeBuffer> */
-RET_LABEL1:(void)0;
+{ /* Inline kernel$Int$+ (var_sllen,var_mlen) on <var_sllen:Int> */
+/* Covariant cast for argument 0 (i) <var_mlen:Int> isa OTHER */
+/* <var_mlen:Int> isa OTHER */
+var69 = 1; /* easy <var_mlen:Int> isa OTHER*/
+if (unlikely(!var69)) {
+var_class_name72 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name72);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
+}
+var73 = var_sllen + var_mlen;
+var67 = var73;
+goto RET_LABEL68;
+RET_LABEL68:(void)0;
 }
 }
-var = NULL/*special!*/;
-var2 = glob_sys;
+var74 = glob_sys;
 {
-var3 = core__ropes___Sys___maxlen(var2);
+var75 = core__ropes___Sys___maxlen(var74);
 }
 {
-{ /* Inline native#NativeString#new (var,var3) on <var:NativeString> */
-var6 = (char*)nit_alloc(var3);
-var4 = var6;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
+{ /* Inline kernel$Int$> (var67,var75) on <var67:Int> */
+/* Covariant cast for argument 0 (i) <var75:Int> isa OTHER */
+/* <var75:Int> isa OTHER */
+var78 = 1; /* easy <var75:Int> isa OTHER*/
+if (unlikely(!var78)) {
+var_class_name81 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name81);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+fatal_exit(1);
+}
+var82 = var67 > var75;
+var76 = var82;
+goto RET_LABEL77;
+RET_LABEL77:(void)0;
 }
 }
+if (var76){
+var83 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 {
-{ /* Inline ropes#RopeBuffer#ns= (self,var4) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___ns].str = var4; /* _ns on <self:RopeBuffer> */
-RET_LABEL7:(void)0;
+((void(*)(val* self, val* p0))(var83->class->vft[COLOR_core__ropes__Concat__left_61d]))(var83, self); /* left= on <var83:Concat>*/
 }
+{
+((void(*)(val* self, val* p0))(var83->class->vft[COLOR_core__ropes__Concat__right_61d]))(var83, var_s); /* right= on <var83:Concat>*/
 }
-var8 = glob_sys;
 {
-var9 = core__ropes___Sys___maxlen(var8);
+((void(*)(val* self))(var83->class->vft[COLOR_core__kernel__Object__init]))(var83); /* init on <var83:Concat>*/
+}
+var = var83;
+goto RET_LABEL;
+} else {
 }
+var84 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
 {
-{ /* Inline ropes#RopeBuffer#buf_size= (self,var9) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l = var9; /* _buf_size on <self:RopeBuffer> */
-RET_LABEL10:(void)0;
+var85 = core__ropes___FlatString___core__abstract_text__Text___43d(self, var_sl);
+}
+var86 = var_s->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_s:String(Concat)> */
+if (unlikely(var86 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 313);
+fatal_exit(1);
 }
+{
+((void(*)(val* self, val* p0))(var84->class->vft[COLOR_core__ropes__Concat__left_61d]))(var84, var85); /* left= on <var84:Concat>*/
 }
 {
-var11 = ((long(*)(val* self))(var_str->class->vft[COLOR_core__abstract_text__Text__length]))(var_str); /* length on <var_str:String>*/
+((void(*)(val* self, val* p0))(var84->class->vft[COLOR_core__ropes__Concat__right_61d]))(var84, var86); /* right= on <var84:Concat>*/
 }
-self->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l = var11; /* _bytelen on <self:RopeBuffer> */
 {
-{ /* Inline ropes#RopeBuffer#dumped= (self,0l) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l = 0l; /* _dumped on <self:RopeBuffer> */
-RET_LABEL12:(void)0;
+((void(*)(val* self))(var84->class->vft[COLOR_core__kernel__Object__init]))(var84); /* init on <var84:Concat>*/
+}
+var = var84;
+goto RET_LABEL;
+} else {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Aborted");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 315);
+fatal_exit(1);
 }
 }
 RET_LABEL:;
+return var;
 }
-/* method ropes#RopeBuffer#[] for (self: RopeBuffer, Int): Char */
-uint32_t core___core__RopeBuffer___core__abstract_text__Text___91d_93d(val* self, long p0) {
-uint32_t var /* : Char */;
-long var_i /* var i: Int */;
+/* method ropes$RopeCharIteratorPiece$node for (self: RopeCharIteratorPiece): String */
+val* core__ropes___core__ropes__RopeCharIteratorPiece___node(val* self) {
+val* var /* : String */;
 val* var1 /* : String */;
-val* var3 /* : String */;
-long var4 /* : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var8 /* : Bool */;
-val* var9 /* : String */;
-val* var11 /* : String */;
-uint32_t var12 /* : Char */;
-char* var13 /* : NativeString */;
-char* var15 /* : NativeString */;
-val* var16 /* : String */;
-val* var18 /* : String */;
-long var19 /* : Int */;
-long var20 /* : Int */;
-short int var22 /* : Bool */;
-int cltype23;
-int idtype24;
-const char* var_class_name25;
-long var26 /* : Int */;
-long var27 /* : Int */;
-long var29 /* : Int */;
-long var30 /* : Int */;
-long var_index /* var index: Int */;
-char* var31 /* : NativeString */;
-char* var33 /* : NativeString */;
-uint32_t var34 /* : Char */;
-var_i = p0;
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var3 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
+var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <self:RopeCharIteratorPiece> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
 fatal_exit(1);
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method ropes$RopeCharIteratorPiece$node= for (self: RopeCharIteratorPiece, String) */
+void core__ropes___core__ropes__RopeCharIteratorPiece___node_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val = p0; /* _node on <self:RopeCharIteratorPiece> */
+RET_LABEL:;
 }
-{
-var4 = ((long(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__length]))(var1); /* length on <var1:String>*/
+/* method ropes$RopeCharIteratorPiece$ldone for (self: RopeCharIteratorPiece): Bool */
+short int core__ropes___core__ropes__RopeCharIteratorPiece___ldone(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <self:RopeCharIteratorPiece> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeCharIteratorPiece$ldone= for (self: RopeCharIteratorPiece, Bool) */
+void core__ropes___core__ropes__RopeCharIteratorPiece___ldone_61d(val* self, short int p0) {
+self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = p0; /* _ldone on <self:RopeCharIteratorPiece> */
+RET_LABEL:;
+}
+/* method ropes$RopeCharIteratorPiece$rdone for (self: RopeCharIteratorPiece): Bool */
+short int core__ropes___core__ropes__RopeCharIteratorPiece___rdone(val* self) {
+short int var /* : Bool */;
+short int var1 /* : Bool */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <self:RopeCharIteratorPiece> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeCharIteratorPiece$rdone= for (self: RopeCharIteratorPiece, Bool) */
+void core__ropes___core__ropes__RopeCharIteratorPiece___rdone_61d(val* self, short int p0) {
+self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = p0; /* _rdone on <self:RopeCharIteratorPiece> */
+RET_LABEL:;
 }
+/* method ropes$RopeCharIteratorPiece$prev for (self: RopeCharIteratorPiece): nullable RopeCharIteratorPiece */
+val* core__ropes___core__ropes__RopeCharIteratorPiece___prev(val* self) {
+val* var /* : nullable RopeCharIteratorPiece */;
+val* var1 /* : nullable RopeCharIteratorPiece */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <self:RopeCharIteratorPiece> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeCharIteratorPiece$prev= for (self: RopeCharIteratorPiece, nullable RopeCharIteratorPiece) */
+void core__ropes___core__ropes__RopeCharIteratorPiece___prev_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val = p0; /* _prev on <self:RopeCharIteratorPiece> */
+RET_LABEL:;
+}
+/* method ropes$RopeCharIteratorPiece$init for (self: RopeCharIteratorPiece) */
+void core__ropes___core__ropes__RopeCharIteratorPiece___core__kernel__Object__init(val* self) {
 {
-{ /* Inline kernel#Int#< (var_i,var4) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var7 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var7)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+((void(*)(val* self))(self->class->vft[COLOR_core__ropes___core__ropes__RopeCharIteratorPiece___core__kernel__Object__init]))(self); /* init on <self:RopeCharIteratorPiece>*/
+}
+RET_LABEL:;
+}
+/* method ropes$RopeCharReverseIterator$ns for (self: RopeCharReverseIterator): String */
+val* core__ropes___core__ropes__RopeCharReverseIterator___ns(val* self) {
+val* var /* : String */;
+val* var1 /* : String */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val; /* _ns on <self:RopeCharReverseIterator> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _ns");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 419);
 fatal_exit(1);
 }
-var8 = var_i < var4;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method ropes$RopeCharReverseIterator$ns= for (self: RopeCharReverseIterator, String) */
+void core__ropes___core__ropes__RopeCharReverseIterator___ns_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val = p0; /* _ns on <self:RopeCharReverseIterator> */
+RET_LABEL:;
 }
-if (var5){
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var11 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
+/* method ropes$RopeCharReverseIterator$pns for (self: RopeCharReverseIterator): Int */
+long core__ropes___core__ropes__RopeCharReverseIterator___pns(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l; /* _pns on <self:RopeCharReverseIterator> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeCharReverseIterator$pns= for (self: RopeCharReverseIterator, Int) */
+void core__ropes___core__ropes__RopeCharReverseIterator___pns_61d(val* self, long p0) {
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l = p0; /* _pns on <self:RopeCharReverseIterator> */
+RET_LABEL:;
+}
+/* method ropes$RopeCharReverseIterator$pos for (self: RopeCharReverseIterator): Int */
+long core__ropes___core__ropes__RopeCharReverseIterator___pos(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l; /* _pos on <self:RopeCharReverseIterator> */
+var = var1;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeCharReverseIterator$pos= for (self: RopeCharReverseIterator, Int) */
+void core__ropes___core__ropes__RopeCharReverseIterator___pos_61d(val* self, long p0) {
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l = p0; /* _pos on <self:RopeCharReverseIterator> */
+RET_LABEL:;
+}
+/* method ropes$RopeCharReverseIterator$subs for (self: RopeCharReverseIterator): IndexedIterator[String] */
+val* core__ropes___core__ropes__RopeCharReverseIterator___subs(val* self) {
+val* var /* : IndexedIterator[String] */;
+val* var1 /* : IndexedIterator[String] */;
+var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
-var9 = var11;
-RET_LABEL10:(void)0;
+var = var1;
+RET_LABEL:;
+return var;
 }
+/* method ropes$RopeCharReverseIterator$subs= for (self: RopeCharReverseIterator, IndexedIterator[String]) */
+void core__ropes___core__ropes__RopeCharReverseIterator___subs_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val = p0; /* _subs on <self:RopeCharReverseIterator> */
+RET_LABEL:;
 }
+/* method ropes$RopeCharReverseIterator$from for (self: RopeCharReverseIterator, Concat, Int) */
+void core__ropes___core__ropes__RopeCharReverseIterator___from(val* self, val* p0, long p1) {
+val* var_root /* var root: Concat */;
+long var_pos /* var pos: Int */;
+val* var /* : ReverseRopeSubstrings */;
+val* var4 /* : IndexedIterator[String] */;
+val* var6 /* : IndexedIterator[String] */;
+val* var7 /* : nullable Object */;
+val* var9 /* : IndexedIterator[String] */;
+val* var11 /* : IndexedIterator[String] */;
+long var12 /* : Int */;
+long var13 /* : Int */;
+short int var15 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+long var16 /* : Int */;
 {
-var12 = ((uint32_t(*)(val* self, long p0))(var9->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(var9, var_i); /* [] on <var9:String>*/
+{ /* Inline kernel$Object$init (self) on <self:RopeCharReverseIterator> */
+RET_LABEL1:(void)0;
 }
-var = var12;
-goto RET_LABEL;
-} else {
+}
+var_root = p0;
+var_pos = p1;
 {
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var15 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var13 = var15;
-RET_LABEL14:(void)0;
+{ /* Inline ropes$RopeCharReverseIterator$pos= (self,var_pos) on <self:RopeCharReverseIterator> */
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l = var_pos; /* _pos on <self:RopeCharReverseIterator> */
+RET_LABEL2:(void)0;
 }
 }
+var = NEW_core__ropes__ReverseRopeSubstrings(&type_core__ropes__ReverseRopeSubstrings);
 {
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var18 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var18 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
+core__ropes___core__ropes__ReverseRopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes$ReverseRopeSubstrings$from on <var:ReverseRopeSubstrings>*/
 }
-var16 = var18;
-RET_LABEL17:(void)0;
+{
+{ /* Inline ropes$RopeCharReverseIterator$subs= (self,var) on <self:RopeCharReverseIterator> */
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val = var; /* _subs on <self:RopeCharReverseIterator> */
+RET_LABEL3:(void)0;
 }
 }
 {
-var19 = ((long(*)(val* self))(var16->class->vft[COLOR_core__abstract_text__Text__length]))(var16); /* length on <var16:String>*/
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
+var6 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
+if (unlikely(var6 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline kernel#Int#- (var_i,var19) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var19:Int> isa OTHER */
-/* <var19:Int> isa OTHER */
-var22 = 1; /* easy <var19:Int> isa OTHER*/
-if (unlikely(!var22)) {
-var_class_name25 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
-var26 = var_i - var19;
-var20 = var26;
-goto RET_LABEL21;
-RET_LABEL21:(void)0;
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var29 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var27 = var29;
-RET_LABEL28:(void)0;
-}
+var7 = ((val*(*)(val* self))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var4); /* item on <var4:IndexedIterator[String]>*/
 }
 {
-var30 = core___core__NativeString___char_to_byte_index_cached(var13, var20, 0l, var27);
+{ /* Inline ropes$RopeCharReverseIterator$ns= (self,var7) on <self:RopeCharReverseIterator> */
+self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val = var7; /* _ns on <self:RopeCharReverseIterator> */
+RET_LABEL8:(void)0;
+}
 }
-var_index = var30;
 {
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var33 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var31 = var33;
-RET_LABEL32:(void)0;
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
+var11 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
+if (unlikely(var11 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
+fatal_exit(1);
 }
-{
-var34 = core___core__NativeString___char_at(var31, var_index);
+var9 = var11;
+RET_LABEL10:(void)0;
 }
-var = var34;
-goto RET_LABEL;
-}
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#[]= for (self: RopeBuffer, Int, Char) */
-void core___core__RopeBuffer___core__abstract_text__Buffer___91d_93d_61d(val* self, long p0, uint32_t p1) {
-long var_i /* var i: Int */;
-uint32_t var_c /* var c: Char */;
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-short int var3 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var4 /* : Bool */;
-short int var_ /* var : Bool */;
-long var5 /* : Int */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
-int cltype9;
-int idtype10;
-const char* var_class_name11;
-short int var12 /* : Bool */;
-long var13 /* : Int */;
-short int var14 /* : Bool */;
-short int var16 /* : Bool */;
-val* var17 /* : String */;
-val* var19 /* : String */;
-long var20 /* : Int */;
-short int var21 /* : Bool */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-short int var27 /* : Bool */;
-val* var_28 /* var : RopeBuffer */;
-long var29 /* : Int */;
-long var30 /* : Int */;
-val* var31 /* : String */;
-val* var33 /* : String */;
-uint32_t var34 /* : Char */;
-long var35 /* : Int */;
-long var36 /* : Int */;
-short int var38 /* : Bool */;
-int cltype39;
-int idtype40;
-const char* var_class_name41;
-long var42 /* : Int */;
-long var43 /* : Int */;
-short int var45 /* : Bool */;
-int cltype46;
-int idtype47;
-const char* var_class_name48;
-long var49 /* : Int */;
-val* var50 /* : String */;
-val* var52 /* : String */;
-val* var_s /* var s: String */;
-val* var53 /* : Text */;
-val* var_l /* var l: String */;
-long var54 /* : Int */;
-short int var56 /* : Bool */;
-int cltype57;
-int idtype58;
-const char* var_class_name59;
-long var60 /* : Int */;
-val* var61 /* : Text */;
-val* var_r /* var r: String */;
-val* var62 /* : String */;
-val* var63 /* : String */;
-val* var64 /* : String */;
-val* var66 /* : String */;
-val* var68 /* : String */;
-long var69 /* : Int */;
-long var70 /* : Int */;
-short int var72 /* : Bool */;
-int cltype73;
-int idtype74;
-const char* var_class_name75;
-long var76 /* : Int */;
-long var_reali /* var reali: Int */;
-char* var77 /* : NativeString */;
-char* var79 /* : NativeString */;
-long var80 /* : Int */;
-long var82 /* : Int */;
-long var83 /* : Int */;
-long var_index /* var index: Int */;
-char* var84 /* : NativeString */;
-char* var86 /* : NativeString */;
-long var87 /* : Int */;
-short int var89 /* : Bool */;
-int cltype90;
-int idtype91;
-const char* var_class_name92;
-long var93 /* : Int */;
-long var94 /* : Int */;
-long var_st_nxt /* var st_nxt: Int */;
-char* var95 /* : NativeString */;
-char* var97 /* : NativeString */;
-uint32_t var98 /* : Char */;
-uint32_t var_loc_c /* var loc_c: Char */;
-long var99 /* : Int */;
-long var100 /* : Int */;
-short int var101 /* : Bool */;
-short int var103 /* : Bool */;
-short int var104 /* : Bool */;
-long var105 /* : Int */;
-long var106 /* : Int */;
-long var107 /* : Int */;
-short int var109 /* : Bool */;
-int cltype110;
-int idtype111;
-const char* var_class_name112;
-long var113 /* : Int */;
-long var_delta /* var delta: Int */;
-long var114 /* : Int */;
-long var116 /* : Int */;
-long var117 /* : Int */;
-long var119 /* : Int */;
-long var120 /* : Int */;
-short int var122 /* : Bool */;
-int cltype123;
-int idtype124;
-const char* var_class_name125;
-long var126 /* : Int */;
-long var_remsp /* var remsp: Int */;
-short int var127 /* : Bool */;
-short int var129 /* : Bool */;
-int cltype130;
-int idtype131;
-const char* var_class_name132;
-short int var133 /* : Bool */;
-val* var_134 /* var : RopeBuffer */;
-long var135 /* : Int */;
-long var137 /* : Int */;
-long var138 /* : Int */;
-short int var140 /* : Bool */;
-int cltype141;
-int idtype142;
-const char* var_class_name143;
-long var144 /* : Int */;
-char* var146 /* : NativeString */;
-long var147 /* : Int */;
-long var149 /* : Int */;
-char* var150 /* : NativeString */;
-char* var152 /* : NativeString */;
-char* var_nns /* var nns: NativeString */;
-char* var153 /* : NativeString */;
-char* var155 /* : NativeString */;
-long var156 /* : Int */;
-long var158 /* : Int */;
-long var159 /* : Int */;
-short int var161 /* : Bool */;
-int cltype162;
-int idtype163;
-const char* var_class_name164;
-long var165 /* : Int */;
-long var166 /* : Int */;
-long var168 /* : Int */;
-char* var170 /* : NativeString */;
-char* var172 /* : NativeString */;
-long var173 /* : Int */;
-long var175 /* : Int */;
-long var176 /* : Int */;
-short int var178 /* : Bool */;
-int cltype179;
-int idtype180;
-const char* var_class_name181;
-long var182 /* : Int */;
-long var183 /* : Int */;
-long var184 /* : Int */;
-short int var186 /* : Bool */;
-int cltype187;
-int idtype188;
-const char* var_class_name189;
-long var190 /* : Int */;
-long var191 /* : Int */;
-long var192 /* : Int */;
-short int var194 /* : Bool */;
-int cltype195;
-int idtype196;
-const char* var_class_name197;
-long var198 /* : Int */;
-long var199 /* : Int */;
-long var201 /* : Int */;
-long var202 /* : Int */;
-short int var204 /* : Bool */;
-int cltype205;
-int idtype206;
-const char* var_class_name207;
-long var208 /* : Int */;
-long var209 /* : Int */;
-short int var211 /* : Bool */;
-int cltype212;
-int idtype213;
-const char* var_class_name214;
-long var215 /* : Int */;
-long var218 /* : Int */;
-long var220 /* : Int */;
-long var221 /* : Int */;
-short int var223 /* : Bool */;
-int cltype224;
-int idtype225;
-const char* var_class_name226;
-long var227 /* : Int */;
-char* var228 /* : NativeString */;
-char* var230 /* : NativeString */;
-char* var231 /* : NativeString */;
-char* var233 /* : NativeString */;
-long var234 /* : Int */;
-long var236 /* : Int */;
-long var237 /* : Int */;
-short int var239 /* : Bool */;
-int cltype240;
-int idtype241;
-const char* var_class_name242;
-long var243 /* : Int */;
-long var244 /* : Int */;
-short int var246 /* : Bool */;
-int cltype247;
-int idtype248;
-const char* var_class_name249;
-long var250 /* : Int */;
-val* var_252 /* var : RopeBuffer */;
-long var253 /* : Int */;
-long var254 /* : Int */;
-short int var256 /* : Bool */;
-int cltype257;
-int idtype258;
-const char* var_class_name259;
-long var260 /* : Int */;
-val* var_261 /* var : RopeBuffer */;
-long var262 /* : Int */;
-long var264 /* : Int */;
-long var265 /* : Int */;
-short int var267 /* : Bool */;
-int cltype268;
-int idtype269;
-const char* var_class_name270;
-long var271 /* : Int */;
-char* var273 /* : NativeString */;
-char* var275 /* : NativeString */;
-var_i = p0;
-var_c = p1;
-{
-{ /* Inline kernel#Int#>= (var_i,0l) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var3 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var3)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
-fatal_exit(1);
-}
-var4 = var_i >= 0l;
-var1 = var4;
-goto RET_LABEL2;
-RET_LABEL2:(void)0;
-}
-}
-var_ = var1;
-if (var1){
-{
-var5 = core___core__RopeBuffer___core__abstract_text__Text__length(self);
-}
-{
-{ /* Inline kernel#Int#<= (var_i,var5) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var5:Int> isa OTHER */
-/* <var5:Int> isa OTHER */
-var8 = 1; /* easy <var5:Int> isa OTHER*/
-if (unlikely(!var8)) {
-var_class_name11 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name11);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
-fatal_exit(1);
-}
-var12 = var_i <= var5;
-var6 = var12;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
-}
-}
-var = var6;
-} else {
-var = var_;
-}
-if (unlikely(!var)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 391);
-fatal_exit(1);
-}
-{
-var13 = core___core__RopeBuffer___core__abstract_text__Text__length(self);
-}
-{
-{ /* Inline kernel#Int#== (var_i,var13) on <var_i:Int> */
-var16 = var_i == var13;
-var14 = var16;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
-}
-}
-if (var14){
-{
-core___core__RopeBuffer___core__abstract_text__Buffer__add(self, var_c); /* Direct call ropes#RopeBuffer#add on <self:RopeBuffer>*/
-}
-} else {
-}
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var19 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var19 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var17 = var19;
-RET_LABEL18:(void)0;
-}
-}
-{
-var20 = ((long(*)(val* self))(var17->class->vft[COLOR_core__abstract_text__Text__length]))(var17); /* length on <var17:String>*/
-}
-{
-{ /* Inline kernel#Int#< (var_i,var20) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var20:Int> isa OTHER */
-/* <var20:Int> isa OTHER */
-var23 = 1; /* easy <var20:Int> isa OTHER*/
-if (unlikely(!var23)) {
-var_class_name26 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var27 = var_i < var20;
-var21 = var27;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
-}
-}
-if (var21){
-var_28 = self;
-var29 = var_28->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l; /* _bytelen on <var_28:RopeBuffer> */
-{
-var30 = core__abstract_text___Char___u8char_len(var_c);
-}
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var33 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var33 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var31 = var33;
-RET_LABEL32:(void)0;
-}
-}
-{
-var34 = ((uint32_t(*)(val* self, long p0))(var31->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(var31, var_i); /* [] on <var31:String>*/
-}
-{
-var35 = core__abstract_text___Char___u8char_len(var34);
-}
-{
-{ /* Inline kernel#Int#- (var30,var35) on <var30:Int> */
-/* Covariant cast for argument 0 (i) <var35:Int> isa OTHER */
-/* <var35:Int> isa OTHER */
-var38 = 1; /* easy <var35:Int> isa OTHER*/
-if (unlikely(!var38)) {
-var_class_name41 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name41);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var42 = var30 - var35;
-var36 = var42;
-goto RET_LABEL37;
-RET_LABEL37:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var29,var36) on <var29:Int> */
-/* Covariant cast for argument 0 (i) <var36:Int> isa OTHER */
-/* <var36:Int> isa OTHER */
-var45 = 1; /* easy <var36:Int> isa OTHER*/
-if (unlikely(!var45)) {
-var_class_name48 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var49 = var29 + var36;
-var43 = var49;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
-}
-}
-var_28->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l = var43; /* _bytelen on <var_28:RopeBuffer> */
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var52 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var52 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var50 = var52;
-RET_LABEL51:(void)0;
-}
-}
-var_s = var50;
-{
-var53 = ((val*(*)(val* self, long p0, long p1))(var_s->class->vft[COLOR_core__abstract_text__Text__substring]))(var_s, 0l, var_i); /* substring on <var_s:String>*/
-}
-var_l = var53;
-{
-{ /* Inline kernel#Int#+ (var_i,1l) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var56 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var56)) {
-var_class_name59 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name59);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var60 = var_i + 1l;
-var54 = var60;
-goto RET_LABEL55;
-RET_LABEL55:(void)0;
-}
-}
-{
-var61 = ((val*(*)(val* self, long p0))(var_s->class->vft[COLOR_core__abstract_text__Text__substring_from]))(var_s, var54); /* substring_from on <var_s:String>*/
-}
-var_r = var61;
-{
-var62 = core__abstract_text___Char___Object__to_s(var_c);
-}
-{
-var63 = ((val*(*)(val* self, val* p0))(var_l->class->vft[COLOR_core__abstract_text__String___43d]))(var_l, var62); /* + on <var_l:String>*/
-}
-{
-var64 = ((val*(*)(val* self, val* p0))(var63->class->vft[COLOR_core__abstract_text__String___43d]))(var63, var_r); /* + on <var63:String>*/
-}
-{
-{ /* Inline ropes#RopeBuffer#str= (self,var64) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___str].val = var64; /* _str on <self:RopeBuffer> */
-RET_LABEL65:(void)0;
-}
-}
-} else {
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var68 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var68 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var66 = var68;
-RET_LABEL67:(void)0;
-}
-}
-{
-var69 = ((long(*)(val* self))(var66->class->vft[COLOR_core__abstract_text__Text__length]))(var66); /* length on <var66:String>*/
-}
-{
-{ /* Inline kernel#Int#- (var_i,var69) on <var_i:Int> */
-/* Covariant cast for argument 0 (i) <var69:Int> isa OTHER */
-/* <var69:Int> isa OTHER */
-var72 = 1; /* easy <var69:Int> isa OTHER*/
-if (unlikely(!var72)) {
-var_class_name75 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name75);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var76 = var_i - var69;
-var70 = var76;
-goto RET_LABEL71;
-RET_LABEL71:(void)0;
-}
-}
-var_reali = var70;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var79 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var77 = var79;
-RET_LABEL78:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var82 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var80 = var82;
-RET_LABEL81:(void)0;
-}
-}
-{
-var83 = core___core__NativeString___char_to_byte_index_cached(var77, var_reali, 0l, var80);
-}
-var_index = var83;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var86 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var84 = var86;
-RET_LABEL85:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var_reali,1l) on <var_reali:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var89 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var89)) {
-var_class_name92 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name92);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var93 = var_reali + 1l;
-var87 = var93;
-goto RET_LABEL88;
-RET_LABEL88:(void)0;
-}
-}
-{
-var94 = core___core__NativeString___char_to_byte_index_cached(var84, var87, var_reali, var_index);
-}
-var_st_nxt = var94;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var97 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var95 = var97;
-RET_LABEL96:(void)0;
-}
-}
-{
-var98 = core___core__NativeString___char_at(var95, var_index);
-}
-var_loc_c = var98;
-{
-var99 = core__abstract_text___Char___u8char_len(var_loc_c);
-}
-{
-var100 = core__abstract_text___Char___u8char_len(var_c);
-}
-{
-{ /* Inline kernel#Int#!= (var99,var100) on <var99:Int> */
-var103 = var99 == var100;
-var104 = !var103;
-var101 = var104;
-goto RET_LABEL102;
-RET_LABEL102:(void)0;
-}
-}
-if (var101){
-{
-var105 = core__abstract_text___Char___u8char_len(var_c);
-}
-{
-var106 = core__abstract_text___Char___u8char_len(var_loc_c);
-}
-{
-{ /* Inline kernel#Int#- (var105,var106) on <var105:Int> */
-/* Covariant cast for argument 0 (i) <var106:Int> isa OTHER */
-/* <var106:Int> isa OTHER */
-var109 = 1; /* easy <var106:Int> isa OTHER*/
-if (unlikely(!var109)) {
-var_class_name112 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name112);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var113 = var105 - var106;
-var107 = var113;
-goto RET_LABEL108;
-RET_LABEL108:(void)0;
-}
-}
-var_delta = var107;
-{
-{ /* Inline ropes#RopeBuffer#buf_size (self) on <self:RopeBuffer> */
-var116 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var114 = var116;
-RET_LABEL115:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var119 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var117 = var119;
-RET_LABEL118:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var114,var117) on <var114:Int> */
-/* Covariant cast for argument 0 (i) <var117:Int> isa OTHER */
-/* <var117:Int> isa OTHER */
-var122 = 1; /* easy <var117:Int> isa OTHER*/
-if (unlikely(!var122)) {
-var_class_name125 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name125);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var126 = var114 - var117;
-var120 = var126;
-goto RET_LABEL121;
-RET_LABEL121:(void)0;
-}
-}
-var_remsp = var120;
-{
-{ /* Inline kernel#Int#< (var_remsp,var_delta) on <var_remsp:Int> */
-/* Covariant cast for argument 0 (i) <var_delta:Int> isa OTHER */
-/* <var_delta:Int> isa OTHER */
-var129 = 1; /* easy <var_delta:Int> isa OTHER*/
-if (unlikely(!var129)) {
-var_class_name132 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name132);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var133 = var_remsp < var_delta;
-var127 = var133;
-goto RET_LABEL128;
-RET_LABEL128:(void)0;
-}
-}
-if (var127){
-var_134 = self;
-{
-{ /* Inline ropes#RopeBuffer#buf_size (var_134) on <var_134:RopeBuffer> */
-var137 = var_134->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <var_134:RopeBuffer> */
-var135 = var137;
-RET_LABEL136:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#* (var135,2l) on <var135:Int> */
-/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
-/* <2l:Int> isa OTHER */
-var140 = 1; /* easy <2l:Int> isa OTHER*/
-if (unlikely(!var140)) {
-var_class_name143 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name143);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 735);
-fatal_exit(1);
-}
-var144 = var135 * 2l;
-var138 = var144;
-goto RET_LABEL139;
-RET_LABEL139:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#buf_size= (var_134,var138) on <var_134:RopeBuffer> */
-var_134->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l = var138; /* _buf_size on <var_134:RopeBuffer> */
-RET_LABEL145:(void)0;
-}
-}
-var146 = NULL/*special!*/;
-{
-{ /* Inline ropes#RopeBuffer#buf_size (self) on <self:RopeBuffer> */
-var149 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var147 = var149;
-RET_LABEL148:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#new (var146,var147) on <var146:NativeString> */
-var152 = (char*)nit_alloc(var147);
-var150 = var152;
-goto RET_LABEL151;
-RET_LABEL151:(void)0;
-}
-}
-var_nns = var150;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var155 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var153 = var155;
-RET_LABEL154:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var158 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var156 = var158;
-RET_LABEL157:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var_index,var156) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var156:Int> isa OTHER */
-/* <var156:Int> isa OTHER */
-var161 = 1; /* easy <var156:Int> isa OTHER*/
-if (unlikely(!var161)) {
-var_class_name164 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name164);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var165 = var_index - var156;
-var159 = var165;
-goto RET_LABEL160;
-RET_LABEL160:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var168 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var166 = var168;
-RET_LABEL167:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var153,var_nns,var159,var166,0l) on <var153:NativeString> */
-memmove(var_nns+0l,var153+var166,var159);
-RET_LABEL169:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var172 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var170 = var172;
-RET_LABEL171:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var175 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var173 = var175;
-RET_LABEL174:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var173,var_index) on <var173:Int> */
-/* Covariant cast for argument 0 (i) <var_index:Int> isa OTHER */
-/* <var_index:Int> isa OTHER */
-var178 = 1; /* easy <var_index:Int> isa OTHER*/
-if (unlikely(!var178)) {
-var_class_name181 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name181);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var182 = var173 - var_index;
-var176 = var182;
-goto RET_LABEL177;
-RET_LABEL177:(void)0;
-}
-}
-{
-var183 = core__abstract_text___Char___u8char_len(var_loc_c);
-}
-{
-{ /* Inline kernel#Int#- (var176,var183) on <var176:Int> */
-/* Covariant cast for argument 0 (i) <var183:Int> isa OTHER */
-/* <var183:Int> isa OTHER */
-var186 = 1; /* easy <var183:Int> isa OTHER*/
-if (unlikely(!var186)) {
-var_class_name189 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name189);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var190 = var176 - var183;
-var184 = var190;
-goto RET_LABEL185;
-RET_LABEL185:(void)0;
-}
-}
-{
-var191 = core__abstract_text___Char___u8char_len(var_loc_c);
-}
-{
-{ /* Inline kernel#Int#+ (var_index,var191) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var191:Int> isa OTHER */
-/* <var191:Int> isa OTHER */
-var194 = 1; /* easy <var191:Int> isa OTHER*/
-if (unlikely(!var194)) {
-var_class_name197 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name197);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var198 = var_index + var191;
-var192 = var198;
-goto RET_LABEL193;
-RET_LABEL193:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var201 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var199 = var201;
-RET_LABEL200:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var_index,var199) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var199:Int> isa OTHER */
-/* <var199:Int> isa OTHER */
-var204 = 1; /* easy <var199:Int> isa OTHER*/
-if (unlikely(!var204)) {
-var_class_name207 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name207);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var208 = var_index - var199;
-var202 = var208;
-goto RET_LABEL203;
-RET_LABEL203:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var202,var_delta) on <var202:Int> */
-/* Covariant cast for argument 0 (i) <var_delta:Int> isa OTHER */
-/* <var_delta:Int> isa OTHER */
-var211 = 1; /* easy <var_delta:Int> isa OTHER*/
-if (unlikely(!var211)) {
-var_class_name214 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name214);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var215 = var202 + var_delta;
-var209 = var215;
-goto RET_LABEL210;
-RET_LABEL210:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var170,var_nns,var184,var192,var209) on <var170:NativeString> */
-memmove(var_nns+var209,var170+var192,var184);
-RET_LABEL216:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#ns= (self,var_nns) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___ns].str = var_nns; /* _ns on <self:RopeBuffer> */
-RET_LABEL217:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var220 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var218 = var220;
-RET_LABEL219:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var_index,var218) on <var_index:Int> */
-/* Covariant cast for argument 0 (i) <var218:Int> isa OTHER */
-/* <var218:Int> isa OTHER */
-var223 = 1; /* easy <var218:Int> isa OTHER*/
-if (unlikely(!var223)) {
-var_class_name226 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name226);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var227 = var_index - var218;
-var221 = var227;
-goto RET_LABEL222;
-RET_LABEL222:(void)0;
-}
-}
-var_index = var221;
-} else {
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var230 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var228 = var230;
-RET_LABEL229:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var233 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var231 = var233;
-RET_LABEL232:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var236 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var234 = var236;
-RET_LABEL235:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var234,var_st_nxt) on <var234:Int> */
-/* Covariant cast for argument 0 (i) <var_st_nxt:Int> isa OTHER */
-/* <var_st_nxt:Int> isa OTHER */
-var239 = 1; /* easy <var_st_nxt:Int> isa OTHER*/
-if (unlikely(!var239)) {
-var_class_name242 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name242);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var243 = var234 - var_st_nxt;
-var237 = var243;
-goto RET_LABEL238;
-RET_LABEL238:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var_st_nxt,var_delta) on <var_st_nxt:Int> */
-/* Covariant cast for argument 0 (i) <var_delta:Int> isa OTHER */
-/* <var_delta:Int> isa OTHER */
-var246 = 1; /* easy <var_delta:Int> isa OTHER*/
-if (unlikely(!var246)) {
-var_class_name249 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name249);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var250 = var_st_nxt + var_delta;
-var244 = var250;
-goto RET_LABEL245;
-RET_LABEL245:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var228,var231,var237,var_st_nxt,var244) on <var228:NativeString> */
-memmove(var231+var244,var228+var_st_nxt,var237);
-RET_LABEL251:(void)0;
-}
-}
-}
-var_252 = self;
-var253 = var_252->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l; /* _bytelen on <var_252:RopeBuffer> */
-{
-{ /* Inline kernel#Int#+ (var253,var_delta) on <var253:Int> */
-/* Covariant cast for argument 0 (i) <var_delta:Int> isa OTHER */
-/* <var_delta:Int> isa OTHER */
-var256 = 1; /* easy <var_delta:Int> isa OTHER*/
-if (unlikely(!var256)) {
-var_class_name259 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name259);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var260 = var253 + var_delta;
-var254 = var260;
-goto RET_LABEL255;
-RET_LABEL255:(void)0;
-}
-}
-var_252->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l = var254; /* _bytelen on <var_252:RopeBuffer> */
-var_261 = self;
-{
-{ /* Inline ropes#RopeBuffer#rpos (var_261) on <var_261:RopeBuffer> */
-var264 = var_261->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <var_261:RopeBuffer> */
-var262 = var264;
-RET_LABEL263:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var262,var_delta) on <var262:Int> */
-/* Covariant cast for argument 0 (i) <var_delta:Int> isa OTHER */
-/* <var_delta:Int> isa OTHER */
-var267 = 1; /* easy <var_delta:Int> isa OTHER*/
-if (unlikely(!var267)) {
-var_class_name270 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name270);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var271 = var262 + var_delta;
-var265 = var271;
-goto RET_LABEL266;
-RET_LABEL266:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos= (var_261,var265) on <var_261:RopeBuffer> */
-var_261->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = var265; /* _rpos on <var_261:RopeBuffer> */
-RET_LABEL272:(void)0;
-}
-}
-} else {
-}
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var275 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var273 = var275;
-RET_LABEL274:(void)0;
-}
-}
-{
-core__flat___NativeString___set_char_at(var273, var_index, var_c); /* Direct call flat#NativeString#set_char_at on <var273:NativeString>*/
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#empty for (self: RopeBuffer): Buffer */
-val* core___core__RopeBuffer___core__abstract_text__Text__empty(val* self) {
-val* var /* : Buffer */;
-val* var1 /* : RopeBuffer */;
-var1 = NEW_core__RopeBuffer(&type_core__RopeBuffer);
-{
-core___core__RopeBuffer___core__kernel__Object__init(var1); /* Direct call ropes#RopeBuffer#init on <var1:RopeBuffer>*/
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#substring for (self: RopeBuffer, Int, Int): Buffer */
-val* core___core__RopeBuffer___core__abstract_text__Text__substring(val* self, long p0, long p1) {
-val* var /* : Buffer */;
-long var_from /* var from: Int */;
-long var_count /* var count: Int */;
-val* var1 /* : String */;
-val* var3 /* : String */;
-long var4 /* : Int */;
-long var_strlen /* var strlen: Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var8 /* : Bool */;
-long var9 /* : Int */;
-short int var11 /* : Bool */;
-int cltype12;
-int idtype13;
-const char* var_class_name14;
-long var15 /* : Int */;
-short int var16 /* : Bool */;
-short int var18 /* : Bool */;
-int cltype19;
-int idtype20;
-const char* var_class_name21;
-short int var22 /* : Bool */;
-long var23 /* : Int */;
-short int var24 /* : Bool */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-const char* var_class_name29;
-short int var30 /* : Bool */;
-long var31 /* : Int */;
-long var32 /* : Int */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
-short int var39 /* : Bool */;
-short int var41 /* : Bool */;
-val* var42 /* : Buffer */;
-short int var43 /* : Bool */;
-short int var45 /* : Bool */;
-int cltype46;
-int idtype47;
-const char* var_class_name48;
-short int var49 /* : Bool */;
-long var50 /* : Int */;
-short int var52 /* : Bool */;
-int cltype53;
-int idtype54;
-const char* var_class_name55;
-long var56 /* : Int */;
-long var_subpos /* var subpos: Int */;
-short int var57 /* : Bool */;
-short int var59 /* : Bool */;
-int cltype60;
-int idtype61;
-const char* var_class_name62;
-short int var63 /* : Bool */;
-val* var64 /* : RopeBuffer */;
-val* var65 /* : String */;
-val* var67 /* : String */;
-val* var68 /* : Text */;
-val* var69 /* : String */;
-val* var71 /* : String */;
-val* var72 /* : Text */;
-val* var_l /* var l: String */;
-long var73 /* : Int */;
-short int var75 /* : Bool */;
-int cltype76;
-int idtype77;
-const char* var_class_name78;
-long var79 /* : Int */;
-long var_rem /* var rem: Int */;
-char* var80 /* : NativeString */;
-char* var81 /* : NativeString */;
-char* var83 /* : NativeString */;
-char* var_nns /* var nns: NativeString */;
-char* var84 /* : NativeString */;
-char* var86 /* : NativeString */;
-long var87 /* : Int */;
-long var89 /* : Int */;
-val* var91 /* : RopeBuffer */;
-val* var92 /* : String */;
-val* var93 /* : nullable Int */;
-val* var94 /* : String */;
-char* var95 /* : NativeString */;
-char* var96 /* : NativeString */;
-char* var98 /* : NativeString */;
-char* var_nns99 /* var nns: NativeString */;
-char* var100 /* : NativeString */;
-char* var102 /* : NativeString */;
-long var103 /* : Int */;
-long var105 /* : Int */;
-val* var107 /* : RopeBuffer */;
-val* var108 /* : String */;
-val* var109 /* : nullable Int */;
-var_from = p0;
-var_count = p1;
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var3 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-var4 = ((long(*)(val* self))(var1->class->vft[COLOR_core__abstract_text__Text__length]))(var1); /* length on <var1:String>*/
-}
-var_strlen = var4;
-{
-{ /* Inline kernel#Int#< (var_from,0l) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var7 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var7)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var8 = var_from < 0l;
-var5 = var8;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
-}
-}
-if (var5){
-{
-{ /* Inline kernel#Int#+ (var_count,var_from) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
-/* <var_from:Int> isa OTHER */
-var11 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var11)) {
-var_class_name14 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name14);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var15 = var_count + var_from;
-var9 = var15;
-goto RET_LABEL10;
-RET_LABEL10:(void)0;
-}
-}
-var_count = var9;
-{
-{ /* Inline kernel#Int#< (var_count,0l) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var18 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var18)) {
-var_class_name21 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name21);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var22 = var_count < 0l;
-var16 = var22;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
-}
-}
-if (var16){
-var_count = 0l;
-} else {
-}
-var_from = 0l;
-} else {
-}
-{
-var23 = core___core__RopeBuffer___core__abstract_text__Text__length(self);
-}
-{
-{ /* Inline kernel#Int#> (var_count,var23) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var23:Int> isa OTHER */
-/* <var23:Int> isa OTHER */
-var26 = 1; /* easy <var23:Int> isa OTHER*/
-if (unlikely(!var26)) {
-var_class_name29 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
-fatal_exit(1);
-}
-var30 = var_count > var23;
-var24 = var30;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
-}
-}
-if (var24){
-{
-var31 = core___core__RopeBuffer___core__abstract_text__Text__length(self);
-}
-{
-{ /* Inline kernel#Int#- (var31,var_from) on <var31:Int> */
-/* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
-/* <var_from:Int> isa OTHER */
-var34 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var38 = var31 - var_from;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
-}
-}
-var_count = var32;
-} else {
-}
-{
-{ /* Inline kernel#Int#== (var_count,0l) on <var_count:Int> */
-var41 = var_count == 0l;
-var39 = var41;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
-}
-}
-if (var39){
-{
-var42 = core___core__RopeBuffer___core__abstract_text__Text__empty(self);
-}
-var = var42;
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline kernel#Int#< (var_from,var_strlen) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var_strlen:Int> isa OTHER */
-/* <var_strlen:Int> isa OTHER */
-var45 = 1; /* easy <var_strlen:Int> isa OTHER*/
-if (unlikely(!var45)) {
-var_class_name48 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var49 = var_from < var_strlen;
-var43 = var49;
-goto RET_LABEL44;
-RET_LABEL44:(void)0;
-}
-}
-if (var43){
-{
-{ /* Inline kernel#Int#- (var_strlen,var_from) on <var_strlen:Int> */
-/* Covariant cast for argument 0 (i) <var_from:Int> isa OTHER */
-/* <var_from:Int> isa OTHER */
-var52 = 1; /* easy <var_from:Int> isa OTHER*/
-if (unlikely(!var52)) {
-var_class_name55 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name55);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var56 = var_strlen - var_from;
-var50 = var56;
-goto RET_LABEL51;
-RET_LABEL51:(void)0;
-}
-}
-var_subpos = var50;
-{
-{ /* Inline kernel#Int#<= (var_count,var_subpos) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var_subpos:Int> isa OTHER */
-/* <var_subpos:Int> isa OTHER */
-var59 = 1; /* easy <var_subpos:Int> isa OTHER*/
-if (unlikely(!var59)) {
-var_class_name62 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name62);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
-fatal_exit(1);
-}
-var63 = var_count <= var_subpos;
-var57 = var63;
-goto RET_LABEL58;
-RET_LABEL58:(void)0;
-}
-}
-if (var57){
-var64 = NEW_core__RopeBuffer(&type_core__RopeBuffer);
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var67 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var67 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var65 = var67;
-RET_LABEL66:(void)0;
-}
-}
-{
-var68 = ((val*(*)(val* self, long p0, long p1))(var65->class->vft[COLOR_core__abstract_text__Text__substring]))(var65, var_from, var_count); /* substring on <var65:String>*/
-}
-{
-core___core__RopeBuffer___from(var64, var68); /* Direct call ropes#RopeBuffer#from on <var64:RopeBuffer>*/
-}
-var = var64;
-goto RET_LABEL;
-} else {
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var71 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var71 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var69 = var71;
-RET_LABEL70:(void)0;
-}
-}
-{
-var72 = ((val*(*)(val* self, long p0))(var69->class->vft[COLOR_core__abstract_text__Text__substring_from]))(var69, var_from); /* substring_from on <var69:String>*/
-}
-var_l = var72;
-{
-{ /* Inline kernel#Int#- (var_count,var_subpos) on <var_count:Int> */
-/* Covariant cast for argument 0 (i) <var_subpos:Int> isa OTHER */
-/* <var_subpos:Int> isa OTHER */
-var75 = 1; /* easy <var_subpos:Int> isa OTHER*/
-if (unlikely(!var75)) {
-var_class_name78 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name78);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var79 = var_count - var_subpos;
-var73 = var79;
-goto RET_LABEL74;
-RET_LABEL74:(void)0;
-}
-}
-var_rem = var73;
-var80 = NULL/*special!*/;
-{
-{ /* Inline native#NativeString#new (var80,var_rem) on <var80:NativeString> */
-var83 = (char*)nit_alloc(var_rem);
-var81 = var83;
-goto RET_LABEL82;
-RET_LABEL82:(void)0;
-}
-}
-var_nns = var81;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var86 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var84 = var86;
-RET_LABEL85:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var89 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var87 = var89;
-RET_LABEL88:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var84,var_nns,var_rem,var87,0l) on <var84:NativeString> */
-memmove(var_nns+0l,var84+var87,var_rem);
-RET_LABEL90:(void)0;
-}
-}
-var91 = NEW_core__RopeBuffer(&type_core__RopeBuffer);
-{
-var93 = (val*)(var_rem<<2|1);
-var92 = core__flat___NativeString___to_s_unsafe(var_nns, var93);
-}
-{
-var94 = ((val*(*)(val* self, val* p0))(var_l->class->vft[COLOR_core__abstract_text__String___43d]))(var_l, var92); /* + on <var_l:String>*/
-}
-{
-core___core__RopeBuffer___from(var91, var94); /* Direct call ropes#RopeBuffer#from on <var91:RopeBuffer>*/
-}
-var = var91;
-goto RET_LABEL;
-}
-} else {
-var95 = NULL/*special!*/;
-{
-{ /* Inline native#NativeString#new (var95,var_count) on <var95:NativeString> */
-var98 = (char*)nit_alloc(var_count);
-var96 = var98;
-goto RET_LABEL97;
-RET_LABEL97:(void)0;
-}
-}
-var_nns99 = var96;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var102 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var100 = var102;
-RET_LABEL101:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var105 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var103 = var105;
-RET_LABEL104:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var100,var_nns99,var_count,var103,0l) on <var100:NativeString> */
-memmove(var_nns99+0l,var100+var103,var_count);
-RET_LABEL106:(void)0;
-}
-}
-var107 = NEW_core__RopeBuffer(&type_core__RopeBuffer);
-{
-var109 = (val*)(var_count<<2|1);
-var108 = core__flat___NativeString___to_s_unsafe(var_nns99, var109);
-}
-{
-core___core__RopeBuffer___from(var107, var108); /* Direct call ropes#RopeBuffer#from on <var107:RopeBuffer>*/
-}
-var = var107;
-goto RET_LABEL;
-}
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeBuffer#append for (self: RopeBuffer, Text) */
-void core___core__RopeBuffer___core__abstract_text__Buffer__append(val* self, val* p0) {
-val* var_s /* var s: Text */;
-long var /* : Int */;
-long var_slen /* var slen: Int */;
-val* var1 /* : Sys */;
-long var2 /* : Int */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var6 /* : Bool */;
-val* var_ /* var : RopeBuffer */;
-val* var7 /* : String */;
-val* var9 /* : String */;
-val* var10 /* : String */;
-val* var11 /* : String */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-char* var16 /* : NativeString */;
-char* var_oits /* var oits: NativeString */;
-long var17 /* : Int */;
-long var_from /* var from: Int */;
-long var18 /* : Int */;
-long var20 /* : Int */;
-long var21 /* : Int */;
-long var23 /* : Int */;
-long var24 /* : Int */;
-short int var26 /* : Bool */;
-int cltype27;
-int idtype28;
-const char* var_class_name29;
-long var30 /* : Int */;
-long var_remsp /* var remsp: Int */;
-short int var31 /* : Bool */;
-short int var33 /* : Bool */;
-int cltype34;
-int idtype35;
-const char* var_class_name36;
-short int var37 /* : Bool */;
-char* var38 /* : NativeString */;
-char* var40 /* : NativeString */;
-long var41 /* : Int */;
-long var43 /* : Int */;
-val* var_45 /* var : RopeBuffer */;
-long var46 /* : Int */;
-long var48 /* : Int */;
-long var49 /* : Int */;
-short int var51 /* : Bool */;
-int cltype52;
-int idtype53;
-const char* var_class_name54;
-long var55 /* : Int */;
-long var57 /* : Int */;
-short int var59 /* : Bool */;
-int cltype60;
-int idtype61;
-const char* var_class_name62;
-long var63 /* : Int */;
-long var64 /* : Int */;
-long var_brk /* var brk: Int */;
-char* var65 /* : NativeString */;
-char* var67 /* : NativeString */;
-long var68 /* : Int */;
-long var70 /* : Int */;
-val* var_72 /* var : RopeBuffer */;
-long var73 /* : Int */;
-long var75 /* : Int */;
-long var76 /* : Int */;
-short int var78 /* : Bool */;
-int cltype79;
-int idtype80;
-const char* var_class_name81;
-long var82 /* : Int */;
-char* var84 /* : NativeString */;
-char* var86 /* : NativeString */;
-long var87 /* : Int */;
-short int var89 /* : Bool */;
-int cltype90;
-int idtype91;
-const char* var_class_name92;
-long var93 /* : Int */;
-long var95 /* : Int */;
-short int var97 /* : Bool */;
-int cltype98;
-int idtype99;
-const char* var_class_name100;
-long var101 /* : Int */;
-val* var103 /* : Iterator[FlatText] */;
-val* var_104 /* var : Iterator[FlatText] */;
-val* var105 /* : Iterator[nullable Object] */;
-val* var_106 /* var : Iterator[FlatText] */;
-short int var107 /* : Bool */;
-val* var108 /* : nullable Object */;
-val* var_i /* var i: FlatText */;
-var_s = p0;
-{
-var = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_s); /* bytelen on <var_s:Text>*/
-}
-var_slen = var;
-var1 = glob_sys;
-{
-var2 = core__ropes___Sys___maxlen(var1);
-}
-{
-{ /* Inline kernel#Int#>= (var_slen,var2) on <var_slen:Int> */
-/* Covariant cast for argument 0 (i) <var2:Int> isa OTHER */
-/* <var2:Int> isa OTHER */
-var5 = 1; /* easy <var2:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
-fatal_exit(1);
-}
-var6 = var_slen >= var2;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-if (var3){
-{
-core___core__RopeBuffer___persist_buffer(self); /* Direct call ropes#RopeBuffer#persist_buffer on <self:RopeBuffer>*/
-}
-var_ = self;
-{
-{ /* Inline ropes#RopeBuffer#str (var_) on <var_:RopeBuffer> */
-var9 = var_->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <var_:RopeBuffer> */
-if (unlikely(var9 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var7 = var9;
-RET_LABEL8:(void)0;
-}
-}
-{
-var10 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_s); /* to_s on <var_s:Text>*/
-}
-{
-var11 = ((val*(*)(val* self, val* p0))(var7->class->vft[COLOR_core__abstract_text__String___43d]))(var7, var10); /* + on <var7:String>*/
-}
-{
-{ /* Inline ropes#RopeBuffer#str= (var_,var11) on <var_:RopeBuffer> */
-var_->attrs[COLOR_core__ropes__RopeBuffer___str].val = var11; /* _str on <var_:RopeBuffer> */
-RET_LABEL12:(void)0;
-}
-}
-goto RET_LABEL;
-} else {
-}
-/* <var_s:Text> isa FlatText */
-cltype14 = type_core__FlatText.color;
-idtype15 = type_core__FlatText.id;
-if(cltype14 >= var_s->type->table_size) {
-var13 = 0;
-} else {
-var13 = var_s->type->type_table[cltype14] == idtype15;
-}
-if (var13){
-var16 = var_s->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_s:Text(FlatText)> */
-var_oits = var16;
-{
-var17 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__flat__FlatText__first_byte]))(var_s); /* first_byte on <var_s:Text(FlatText)>*/
-}
-var_from = var17;
-{
-{ /* Inline ropes#RopeBuffer#buf_size (self) on <self:RopeBuffer> */
-var20 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var18 = var20;
-RET_LABEL19:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var23 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var21 = var23;
-RET_LABEL22:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var18,var21) on <var18:Int> */
-/* Covariant cast for argument 0 (i) <var21:Int> isa OTHER */
-/* <var21:Int> isa OTHER */
-var26 = 1; /* easy <var21:Int> isa OTHER*/
-if (unlikely(!var26)) {
-var_class_name29 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name29);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var30 = var18 - var21;
-var24 = var30;
-goto RET_LABEL25;
-RET_LABEL25:(void)0;
-}
-}
-var_remsp = var24;
-{
-{ /* Inline kernel#Int#<= (var_slen,var_remsp) on <var_slen:Int> */
-/* Covariant cast for argument 0 (i) <var_remsp:Int> isa OTHER */
-/* <var_remsp:Int> isa OTHER */
-var33 = 1; /* easy <var_remsp:Int> isa OTHER*/
-if (unlikely(!var33)) {
-var_class_name36 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name36);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
-fatal_exit(1);
-}
-var37 = var_slen <= var_remsp;
-var31 = var37;
-goto RET_LABEL32;
-RET_LABEL32:(void)0;
-}
-}
-if (var31){
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var40 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var38 = var40;
-RET_LABEL39:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var43 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var41 = var43;
-RET_LABEL42:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var_oits,var38,var_slen,var_from,var41) on <var_oits:NativeString> */
-memmove(var38+var41,var_oits+var_from,var_slen);
-RET_LABEL44:(void)0;
-}
-}
-var_45 = self;
-{
-{ /* Inline ropes#RopeBuffer#rpos (var_45) on <var_45:RopeBuffer> */
-var48 = var_45->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <var_45:RopeBuffer> */
-var46 = var48;
-RET_LABEL47:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var46,var_slen) on <var46:Int> */
-/* Covariant cast for argument 0 (i) <var_slen:Int> isa OTHER */
-/* <var_slen:Int> isa OTHER */
-var51 = 1; /* easy <var_slen:Int> isa OTHER*/
-if (unlikely(!var51)) {
-var_class_name54 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name54);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var55 = var46 + var_slen;
-var49 = var55;
-goto RET_LABEL50;
-RET_LABEL50:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos= (var_45,var49) on <var_45:RopeBuffer> */
-var_45->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = var49; /* _rpos on <var_45:RopeBuffer> */
-RET_LABEL56:(void)0;
-}
-}
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline kernel#Int#+ (var_from,var_remsp) on <var_from:Int> */
-/* Covariant cast for argument 0 (i) <var_remsp:Int> isa OTHER */
-/* <var_remsp:Int> isa OTHER */
-var59 = 1; /* easy <var_remsp:Int> isa OTHER*/
-if (unlikely(!var59)) {
-var_class_name62 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name62);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var63 = var_from + var_remsp;
-var57 = var63;
-goto RET_LABEL58;
-RET_LABEL58:(void)0;
-}
-}
-{
-var64 = core___core__NativeString___find_beginning_of_char_at(var_oits, var57);
-}
-var_brk = var64;
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var67 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var65 = var67;
-RET_LABEL66:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var70 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var68 = var70;
-RET_LABEL69:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var_oits,var65,var_brk,var_from,var68) on <var_oits:NativeString> */
-memmove(var65+var68,var_oits+var_from,var_brk);
-RET_LABEL71:(void)0;
-}
-}
-var_72 = self;
-{
-{ /* Inline ropes#RopeBuffer#rpos (var_72) on <var_72:RopeBuffer> */
-var75 = var_72->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <var_72:RopeBuffer> */
-var73 = var75;
-RET_LABEL74:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var73,var_brk) on <var73:Int> */
-/* Covariant cast for argument 0 (i) <var_brk:Int> isa OTHER */
-/* <var_brk:Int> isa OTHER */
-var78 = 1; /* easy <var_brk:Int> isa OTHER*/
-if (unlikely(!var78)) {
-var_class_name81 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name81);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var82 = var73 + var_brk;
-var76 = var82;
-goto RET_LABEL77;
-RET_LABEL77:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos= (var_72,var76) on <var_72:RopeBuffer> */
-var_72->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = var76; /* _rpos on <var_72:RopeBuffer> */
-RET_LABEL83:(void)0;
-}
-}
-{
-core___core__RopeBuffer___dump_buffer(self); /* Direct call ropes#RopeBuffer#dump_buffer on <self:RopeBuffer>*/
-}
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var86 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var84 = var86;
-RET_LABEL85:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var_slen,var_remsp) on <var_slen:Int> */
-/* Covariant cast for argument 0 (i) <var_remsp:Int> isa OTHER */
-/* <var_remsp:Int> isa OTHER */
-var89 = 1; /* easy <var_remsp:Int> isa OTHER*/
-if (unlikely(!var89)) {
-var_class_name92 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name92);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var93 = var_slen - var_remsp;
-var87 = var93;
-goto RET_LABEL88;
-RET_LABEL88:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var_oits,var84,var87,var_brk,0l) on <var_oits:NativeString> */
-memmove(var84+0l,var_oits+var_brk,var87);
-RET_LABEL94:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var_slen,var_remsp) on <var_slen:Int> */
-/* Covariant cast for argument 0 (i) <var_remsp:Int> isa OTHER */
-/* <var_remsp:Int> isa OTHER */
-var97 = 1; /* easy <var_remsp:Int> isa OTHER*/
-if (unlikely(!var97)) {
-var_class_name100 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name100);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var101 = var_slen - var_remsp;
-var95 = var101;
-goto RET_LABEL96;
-RET_LABEL96:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos= (self,var95) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = var95; /* _rpos on <self:RopeBuffer> */
-RET_LABEL102:(void)0;
-}
-}
-} else {
-{
-var103 = ((val*(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__substrings]))(var_s); /* substrings on <var_s:Text>*/
-}
-var_104 = var103;
-{
-var105 = ((val*(*)(val* self))((((long)var_104&3)?class_info[((long)var_104&3)]:var_104->class)->vft[COLOR_core__abstract_collection__Iterator__iterator]))(var_104); /* iterator on <var_104:Iterator[FlatText]>*/
-}
-var_106 = var105;
-for(;;) {
-{
-var107 = ((short int(*)(val* self))((((long)var_106&3)?class_info[((long)var_106&3)]:var_106->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var_106); /* is_ok on <var_106:Iterator[FlatText]>*/
-}
-if (var107){
-} else {
-goto BREAK_label;
-}
-{
-var108 = ((val*(*)(val* self))((((long)var_106&3)?class_info[((long)var_106&3)]:var_106->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var_106); /* item on <var_106:Iterator[FlatText]>*/
-}
-var_i = var108;
-{
-core___core__RopeBuffer___core__abstract_text__Buffer__append(self, var_i); /* Direct call ropes#RopeBuffer#append on <self:RopeBuffer>*/
-}
-{
-((void(*)(val* self))((((long)var_106&3)?class_info[((long)var_106&3)]:var_106->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var_106); /* next on <var_106:Iterator[FlatText]>*/
-}
-}
-BREAK_label: (void)0;
-{
-((void(*)(val* self))((((long)var_106&3)?class_info[((long)var_106&3)]:var_106->class)->vft[COLOR_core__abstract_collection__Iterator__finish]))(var_106); /* finish on <var_106:Iterator[FlatText]>*/
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#add for (self: RopeBuffer, Char) */
-void core___core__RopeBuffer___core__abstract_text__Buffer__add(val* self, uint32_t p0) {
-uint32_t var_c /* var c: Char */;
-long var /* : Int */;
-long var2 /* : Int */;
-long var_rp /* var rp: Int */;
-long var3 /* : Int */;
-long var5 /* : Int */;
-long var6 /* : Int */;
-short int var8 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var9 /* : Int */;
-long var_remsp /* var remsp: Int */;
-long var10 /* : Int */;
-long var_cln /* var cln: Int */;
-short int var11 /* : Bool */;
-short int var13 /* : Bool */;
-int cltype14;
-int idtype15;
-const char* var_class_name16;
-short int var17 /* : Bool */;
-char* var18 /* : NativeString */;
-char* var20 /* : NativeString */;
-long var21 /* : Int */;
-short int var23 /* : Bool */;
-int cltype24;
-int idtype25;
-const char* var_class_name26;
-long var27 /* : Int */;
-val* var_ /* var : RopeBuffer */;
-long var28 /* : Int */;
-long var29 /* : Int */;
-short int var31 /* : Bool */;
-int cltype32;
-int idtype33;
-const char* var_class_name34;
-long var35 /* : Int */;
-var_c = p0;
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var2 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var = var2;
-RET_LABEL1:(void)0;
-}
-}
-var_rp = var;
-{
-{ /* Inline ropes#RopeBuffer#buf_size (self) on <self:RopeBuffer> */
-var5 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var3 = var5;
-RET_LABEL4:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var3,var_rp) on <var3:Int> */
-/* Covariant cast for argument 0 (i) <var_rp:Int> isa OTHER */
-/* <var_rp:Int> isa OTHER */
-var8 = 1; /* easy <var_rp:Int> isa OTHER*/
-if (unlikely(!var8)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var9 = var3 - var_rp;
-var6 = var9;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
-}
-}
-var_remsp = var6;
-{
-var10 = core__abstract_text___Char___u8char_len(var_c);
-}
-var_cln = var10;
-{
-{ /* Inline kernel#Int#> (var_cln,var_remsp) on <var_cln:Int> */
-/* Covariant cast for argument 0 (i) <var_remsp:Int> isa OTHER */
-/* <var_remsp:Int> isa OTHER */
-var13 = 1; /* easy <var_remsp:Int> isa OTHER*/
-if (unlikely(!var13)) {
-var_class_name16 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name16);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
-fatal_exit(1);
-}
-var17 = var_cln > var_remsp;
-var11 = var17;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
-}
-}
-if (var11){
-{
-core___core__RopeBuffer___dump_buffer(self); /* Direct call ropes#RopeBuffer#dump_buffer on <self:RopeBuffer>*/
-}
-var_rp = 0l;
-} else {
-}
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var20 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var18 = var20;
-RET_LABEL19:(void)0;
-}
-}
-{
-core__flat___NativeString___set_char_at(var18, var_rp, var_c); /* Direct call flat#NativeString#set_char_at on <var18:NativeString>*/
-}
-{
-{ /* Inline kernel#Int#+ (var_rp,var_cln) on <var_rp:Int> */
-/* Covariant cast for argument 0 (i) <var_cln:Int> isa OTHER */
-/* <var_cln:Int> isa OTHER */
-var23 = 1; /* easy <var_cln:Int> isa OTHER*/
-if (unlikely(!var23)) {
-var_class_name26 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var27 = var_rp + var_cln;
-var21 = var27;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
-}
-}
-var_rp = var21;
-var_ = self;
-var28 = var_->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l; /* _bytelen on <var_:RopeBuffer> */
-{
-{ /* Inline kernel#Int#+ (var28,var_cln) on <var28:Int> */
-/* Covariant cast for argument 0 (i) <var_cln:Int> isa OTHER */
-/* <var_cln:Int> isa OTHER */
-var31 = 1; /* easy <var_cln:Int> isa OTHER*/
-if (unlikely(!var31)) {
-var_class_name34 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name34);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var35 = var28 + var_cln;
-var29 = var35;
-goto RET_LABEL30;
-RET_LABEL30:(void)0;
-}
-}
-var_->attrs[COLOR_core__ropes__RopeBuffer___bytelen].l = var29; /* _bytelen on <var_:RopeBuffer> */
-{
-{ /* Inline ropes#RopeBuffer#rpos= (self,var_rp) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = var_rp; /* _rpos on <self:RopeBuffer> */
-RET_LABEL36:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#dump_buffer for (self: RopeBuffer) */
-void core___core__RopeBuffer___dump_buffer(val* self) {
-val* var /* : FlatString */;
-char* var2 /* : NativeString */;
-char* var4 /* : NativeString */;
-long var5 /* : Int */;
-long var7 /* : Int */;
-long var8 /* : Int */;
-long var10 /* : Int */;
-long var11 /* : Int */;
-short int var13 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var14 /* : Int */;
-long var15 /* : Int */;
-long var17 /* : Int */;
-val* var_nstr /* var nstr: FlatString */;
-val* var_ /* var : RopeBuffer */;
-val* var18 /* : String */;
-val* var20 /* : String */;
-val* var21 /* : String */;
-long var23 /* : Int */;
-long var25 /* : Int */;
-long var_bs /* var bs: Int */;
-long var26 /* : Int */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-const char* var_class_name31;
-long var32 /* : Int */;
-char* var33 /* : NativeString */;
-char* var34 /* : NativeString */;
-char* var36 /* : NativeString */;
-{
-{ /* Inline abstract_text#Buffer#written= (self,0) on <self:RopeBuffer> */
-self->attrs[COLOR_core__abstract_text__Buffer___written].s = 0; /* _written on <self:RopeBuffer> */
-RET_LABEL1:(void)0;
-}
-}
-var = NEW_core__FlatString(&type_core__FlatString);
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var4 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var2 = var4;
-RET_LABEL3:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var7 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var5 = var7;
-RET_LABEL6:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var10 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var8 = var10;
-RET_LABEL9:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var5,var8) on <var5:Int> */
-/* Covariant cast for argument 0 (i) <var8:Int> isa OTHER */
-/* <var8:Int> isa OTHER */
-var13 = 1; /* easy <var8:Int> isa OTHER*/
-if (unlikely(!var13)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var14 = var5 - var8;
-var11 = var14;
-goto RET_LABEL12;
-RET_LABEL12:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var17 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var15 = var17;
-RET_LABEL16:(void)0;
-}
-}
-{
-core___core__FlatString___with_infos(var, var2, var11, var15); /* Direct call flat#FlatString#with_infos on <var:FlatString>*/
-}
-var_nstr = var;
-var_ = self;
-{
-{ /* Inline ropes#RopeBuffer#str (var_) on <var_:RopeBuffer> */
-var20 = var_->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <var_:RopeBuffer> */
-if (unlikely(var20 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var18 = var20;
-RET_LABEL19:(void)0;
-}
-}
-{
-var21 = ((val*(*)(val* self, val* p0))(var18->class->vft[COLOR_core__abstract_text__String___43d]))(var18, var_nstr); /* + on <var18:String>*/
-}
-{
-{ /* Inline ropes#RopeBuffer#str= (var_,var21) on <var_:RopeBuffer> */
-var_->attrs[COLOR_core__ropes__RopeBuffer___str].val = var21; /* _str on <var_:RopeBuffer> */
-RET_LABEL22:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#buf_size (self) on <self:RopeBuffer> */
-var25 = self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l; /* _buf_size on <self:RopeBuffer> */
-var23 = var25;
-RET_LABEL24:(void)0;
-}
-}
-var_bs = var23;
-{
-{ /* Inline kernel#Int#* (var_bs,2l) on <var_bs:Int> */
-/* Covariant cast for argument 0 (i) <2l:Int> isa OTHER */
-/* <2l:Int> isa OTHER */
-var28 = 1; /* easy <2l:Int> isa OTHER*/
-if (unlikely(!var28)) {
-var_class_name31 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name31);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 735);
-fatal_exit(1);
-}
-var32 = var_bs * 2l;
-var26 = var32;
-goto RET_LABEL27;
-RET_LABEL27:(void)0;
-}
-}
-var_bs = var26;
-var33 = NULL/*special!*/;
-{
-{ /* Inline native#NativeString#new (var33,var_bs) on <var33:NativeString> */
-var36 = (char*)nit_alloc(var_bs);
-var34 = var36;
-goto RET_LABEL35;
-RET_LABEL35:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#ns= (self,var34) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___ns].str = var34; /* _ns on <self:RopeBuffer> */
-RET_LABEL37:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#buf_size= (self,var_bs) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___buf_size].l = var_bs; /* _buf_size on <self:RopeBuffer> */
-RET_LABEL38:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped= (self,0l) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l = 0l; /* _dumped on <self:RopeBuffer> */
-RET_LABEL39:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos= (self,0l) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l = 0l; /* _rpos on <self:RopeBuffer> */
-RET_LABEL40:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#persist_buffer for (self: RopeBuffer) */
-void core___core__RopeBuffer___persist_buffer(val* self) {
-long var /* : Int */;
-long var2 /* : Int */;
-long var3 /* : Int */;
-long var5 /* : Int */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
-val* var9 /* : FlatString */;
-char* var10 /* : NativeString */;
-char* var12 /* : NativeString */;
-long var13 /* : Int */;
-long var15 /* : Int */;
-long var16 /* : Int */;
-long var18 /* : Int */;
-long var19 /* : Int */;
-short int var21 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var22 /* : Int */;
-long var23 /* : Int */;
-long var25 /* : Int */;
-val* var_nstr /* var nstr: FlatString */;
-val* var_ /* var : RopeBuffer */;
-val* var26 /* : String */;
-val* var28 /* : String */;
-val* var29 /* : String */;
-long var31 /* : Int */;
-long var33 /* : Int */;
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var2 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var = var2;
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var5 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var3 = var5;
-RET_LABEL4:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#== (var,var3) on <var:Int> */
-var8 = var == var3;
-var6 = var8;
-goto RET_LABEL7;
-RET_LABEL7:(void)0;
-}
-}
-if (var6){
-goto RET_LABEL;
-} else {
-}
-var9 = NEW_core__FlatString(&type_core__FlatString);
-{
-{ /* Inline ropes#RopeBuffer#ns (self) on <self:RopeBuffer> */
-var12 = self->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <self:RopeBuffer> */
-var10 = var12;
-RET_LABEL11:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var15 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var13 = var15;
-RET_LABEL14:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var18 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var16 = var18;
-RET_LABEL17:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var13,var16) on <var13:Int> */
-/* Covariant cast for argument 0 (i) <var16:Int> isa OTHER */
-/* <var16:Int> isa OTHER */
-var21 = 1; /* easy <var16:Int> isa OTHER*/
-if (unlikely(!var21)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var22 = var13 - var16;
-var19 = var22;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped (self) on <self:RopeBuffer> */
-var25 = self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <self:RopeBuffer> */
-var23 = var25;
-RET_LABEL24:(void)0;
-}
-}
-{
-core___core__FlatString___with_infos(var9, var10, var19, var23); /* Direct call flat#FlatString#with_infos on <var9:FlatString>*/
-}
-var_nstr = var9;
-var_ = self;
-{
-{ /* Inline ropes#RopeBuffer#str (var_) on <var_:RopeBuffer> */
-var28 = var_->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <var_:RopeBuffer> */
-if (unlikely(var28 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var26 = var28;
-RET_LABEL27:(void)0;
-}
-}
-{
-var29 = ((val*(*)(val* self, val* p0))(var26->class->vft[COLOR_core__abstract_text__String___43d]))(var26, var_nstr); /* + on <var26:String>*/
-}
-{
-{ /* Inline ropes#RopeBuffer#str= (var_,var29) on <var_:RopeBuffer> */
-var_->attrs[COLOR_core__ropes__RopeBuffer___str].val = var29; /* _str on <var_:RopeBuffer> */
-RET_LABEL30:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#rpos (self) on <self:RopeBuffer> */
-var33 = self->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <self:RopeBuffer> */
-var31 = var33;
-RET_LABEL32:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#dumped= (self,var31) on <self:RopeBuffer> */
-self->attrs[COLOR_core__ropes__RopeBuffer___dumped].l = var31; /* _dumped on <self:RopeBuffer> */
-RET_LABEL34:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#enlarge for (self: RopeBuffer, Int) */
-void core___core__RopeBuffer___core__abstract_text__Buffer__enlarge(val* self, long p0) {
-long var_i /* var i: Int */;
-var_i = p0;
-RET_LABEL:;
-}
-/* method ropes#RopeBuffer#to_s for (self: RopeBuffer): String */
-val* core___core__RopeBuffer___core__abstract_text__Object__to_s(val* self) {
-val* var /* : String */;
-val* var2 /* : String */;
-val* var4 /* : String */;
-{
-core___core__RopeBuffer___persist_buffer(self); /* Direct call ropes#RopeBuffer#persist_buffer on <self:RopeBuffer>*/
-}
-{
-{ /* Inline abstract_text#Buffer#written= (self,1) on <self:RopeBuffer> */
-self->attrs[COLOR_core__abstract_text__Buffer___written].s = 1; /* _written on <self:RopeBuffer> */
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeBuffer#str (self) on <self:RopeBuffer> */
-var4 = self->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <self:RopeBuffer> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
-fatal_exit(1);
-}
-var2 = var4;
-RET_LABEL3:(void)0;
-}
-}
-var = var2;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#FlatString#+ for (self: FlatString, Text): String */
-val* core__ropes___FlatString___core__abstract_text__String___43d(val* self, val* p0) {
-val* var /* : String */;
-val* var_o /* var o: Text */;
-val* var1 /* : String */;
-val* var_s /* var s: String */;
-long var2 /* : Int */;
-long var_slen /* var slen: Int */;
-long var3 /* : Int */;
-long var_mlen /* var mlen: Int */;
-short int var4 /* : Bool */;
-short int var6 /* : Bool */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-long var10 /* : Int */;
-short int var12 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var13 /* : Int */;
-long var_nlen /* var nlen: Int */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-val* var17 /* : Sys */;
-long var18 /* : Int */;
-short int var19 /* : Bool */;
-short int var21 /* : Bool */;
-int cltype22;
-int idtype23;
-const char* var_class_name24;
-short int var25 /* : Bool */;
-val* var26 /* : Concat */;
-char* var27 /* : NativeString */;
-char* var_mits /* var mits: NativeString */;
-long var28 /* : Int */;
-long var_sifrom /* var sifrom: Int */;
-long var29 /* : Int */;
-long var_mifrom /* var mifrom: Int */;
-char* var30 /* : NativeString */;
-char* var_sits /* var sits: NativeString */;
-char* var31 /* : NativeString */;
-long var32 /* : Int */;
-short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
-char* var39 /* : NativeString */;
-char* var41 /* : NativeString */;
-char* var_ns /* var ns: NativeString */;
-val* var44 /* : FlatString */;
-long var45 /* : Int */;
-long var47 /* : Int */;
-long var48 /* : Int */;
-long var50 /* : Int */;
-long var51 /* : Int */;
-short int var53 /* : Bool */;
-int cltype54;
-int idtype55;
-const char* var_class_name56;
-long var57 /* : Int */;
-short int var58 /* : Bool */;
-int cltype59;
-int idtype60;
-val* var61 /* : String */;
-val* var_sl /* var sl: String */;
-long var62 /* : Int */;
-long var_sllen /* var sllen: Int */;
-long var63 /* : Int */;
-short int var65 /* : Bool */;
-int cltype66;
-int idtype67;
-const char* var_class_name68;
-long var69 /* : Int */;
-val* var70 /* : Sys */;
-long var71 /* : Int */;
-short int var72 /* : Bool */;
-short int var74 /* : Bool */;
-int cltype75;
-int idtype76;
-const char* var_class_name77;
-short int var78 /* : Bool */;
-val* var79 /* : Concat */;
-val* var80 /* : Concat */;
-val* var81 /* : String */;
-val* var82 /* : String */;
-var_o = p0;
-{
-var1 = ((val*(*)(val* self))(var_o->class->vft[COLOR_core__abstract_text__Object__to_s]))(var_o); /* to_s on <var_o:Text>*/
-}
-var_s = var1;
-{
-var2 = ((long(*)(val* self))(var_s->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_s); /* bytelen on <var_s:String>*/
-}
-var_slen = var2;
-var3 = self->attrs[COLOR_core__abstract_text__FlatText___bytelen].l; /* _bytelen on <self:FlatString> */
-var_mlen = var3;
-{
-{ /* Inline kernel#Int#== (var_slen,0l) on <var_slen:Int> */
-var6 = var_slen == 0l;
-var4 = var6;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-}
-if (var4){
-var = self;
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline kernel#Int#== (var_mlen,0l) on <var_mlen:Int> */
-var9 = var_mlen == 0l;
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-if (var7){
-var = var_s;
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline kernel#Int#+ (var_slen,var_mlen) on <var_slen:Int> */
-/* Covariant cast for argument 0 (i) <var_mlen:Int> isa OTHER */
-/* <var_mlen:Int> isa OTHER */
-var12 = 1; /* easy <var_mlen:Int> isa OTHER*/
-if (unlikely(!var12)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var13 = var_slen + var_mlen;
-var10 = var13;
-goto RET_LABEL11;
-RET_LABEL11:(void)0;
-}
-}
-var_nlen = var10;
-/* <var_s:String> isa FlatString */
-cltype15 = type_core__FlatString.color;
-idtype16 = type_core__FlatString.id;
-if(cltype15 >= var_s->type->table_size) {
-var14 = 0;
-} else {
-var14 = var_s->type->type_table[cltype15] == idtype16;
-}
-if (var14){
-var17 = glob_sys;
-{
-var18 = core__ropes___Sys___maxlen(var17);
-}
-{
-{ /* Inline kernel#Int#> (var_nlen,var18) on <var_nlen:Int> */
-/* Covariant cast for argument 0 (i) <var18:Int> isa OTHER */
-/* <var18:Int> isa OTHER */
-var21 = 1; /* easy <var18:Int> isa OTHER*/
-if (unlikely(!var21)) {
-var_class_name24 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name24);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
-fatal_exit(1);
-}
-var25 = var_nlen > var18;
-var19 = var25;
-goto RET_LABEL20;
-RET_LABEL20:(void)0;
-}
-}
-if (var19){
-var26 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
-{
-((void(*)(val* self, val* p0))(var26->class->vft[COLOR_core__ropes__Concat__left_61d]))(var26, self); /* left= on <var26:Concat>*/
-}
-{
-((void(*)(val* self, val* p0))(var26->class->vft[COLOR_core__ropes__Concat__right_61d]))(var26, var_s); /* right= on <var26:Concat>*/
-}
-{
-((void(*)(val* self))(var26->class->vft[COLOR_core__kernel__Object__init]))(var26); /* init on <var26:Concat>*/
-}
-var = var26;
-goto RET_LABEL;
-} else {
-}
-var27 = self->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <self:FlatString> */
-var_mits = var27;
-var28 = var_s->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <var_s:String(FlatString)> */
-var_sifrom = var28;
-var29 = self->attrs[COLOR_core__flat__FlatString___first_byte].l; /* _first_byte on <self:FlatString> */
-var_mifrom = var29;
-var30 = var_s->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_s:String(FlatString)> */
-var_sits = var30;
-var31 = NULL/*special!*/;
-{
-{ /* Inline kernel#Int#+ (var_nlen,1l) on <var_nlen:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var34 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var38 = var_nlen + 1l;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#new (var31,var32) on <var31:NativeString> */
-var41 = (char*)nit_alloc(var32);
-var39 = var41;
-goto RET_LABEL40;
-RET_LABEL40:(void)0;
-}
-}
-var_ns = var39;
-{
-{ /* Inline native#NativeString#copy_to (var_mits,var_ns,var_mlen,var_mifrom,0l) on <var_mits:NativeString> */
-memmove(var_ns+0l,var_mits+var_mifrom,var_mlen);
-RET_LABEL42:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#copy_to (var_sits,var_ns,var_slen,var_sifrom,var_mlen) on <var_sits:NativeString> */
-memmove(var_ns+var_mlen,var_sits+var_sifrom,var_slen);
-RET_LABEL43:(void)0;
-}
-}
-var44 = NEW_core__FlatString(&type_core__FlatString);
-{
-{ /* Inline abstract_text#FlatText#length (self) on <self:FlatString> */
-var47 = self->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <self:FlatString> */
-var45 = var47;
-RET_LABEL46:(void)0;
-}
-}
-{
-{ /* Inline abstract_text#FlatText#length (var_s) on <var_s:String(FlatString)> */
-var50 = var_s->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var_s:String(FlatString)> */
-var48 = var50;
-RET_LABEL49:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var45,var48) on <var45:Int> */
-/* Covariant cast for argument 0 (i) <var48:Int> isa OTHER */
-/* <var48:Int> isa OTHER */
-var53 = 1; /* easy <var48:Int> isa OTHER*/
-if (unlikely(!var53)) {
-var_class_name56 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name56);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var57 = var45 + var48;
-var51 = var57;
-goto RET_LABEL52;
-RET_LABEL52:(void)0;
-}
-}
-{
-core___core__FlatString___full(var44, var_ns, var_nlen, 0l, var51); /* Direct call flat#FlatString#full on <var44:FlatString>*/
-}
-var = var44;
-goto RET_LABEL;
-} else {
-/* <var_s:String> isa Concat */
-cltype59 = type_core__ropes__Concat.color;
-idtype60 = type_core__ropes__Concat.id;
-if(cltype59 >= var_s->type->table_size) {
-var58 = 0;
-} else {
-var58 = var_s->type->type_table[cltype59] == idtype60;
-}
-if (var58){
-var61 = var_s->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_s:String(Concat)> */
-if (unlikely(var61 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 600);
-fatal_exit(1);
-}
-var_sl = var61;
-{
-var62 = ((long(*)(val* self))(var_sl->class->vft[COLOR_core__abstract_text__Text__bytelen]))(var_sl); /* bytelen on <var_sl:String>*/
-}
-var_sllen = var62;
-{
-{ /* Inline kernel#Int#+ (var_sllen,var_mlen) on <var_sllen:Int> */
-/* Covariant cast for argument 0 (i) <var_mlen:Int> isa OTHER */
-/* <var_mlen:Int> isa OTHER */
-var65 = 1; /* easy <var_mlen:Int> isa OTHER*/
-if (unlikely(!var65)) {
-var_class_name68 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name68);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var69 = var_sllen + var_mlen;
-var63 = var69;
-goto RET_LABEL64;
-RET_LABEL64:(void)0;
-}
-}
-var70 = glob_sys;
-{
-var71 = core__ropes___Sys___maxlen(var70);
-}
-{
-{ /* Inline kernel#Int#> (var63,var71) on <var63:Int> */
-/* Covariant cast for argument 0 (i) <var71:Int> isa OTHER */
-/* <var71:Int> isa OTHER */
-var74 = 1; /* easy <var71:Int> isa OTHER*/
-if (unlikely(!var74)) {
-var_class_name77 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name77);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
-fatal_exit(1);
-}
-var78 = var63 > var71;
-var72 = var78;
-goto RET_LABEL73;
-RET_LABEL73:(void)0;
-}
-}
-if (var72){
-var79 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
-{
-((void(*)(val* self, val* p0))(var79->class->vft[COLOR_core__ropes__Concat__left_61d]))(var79, self); /* left= on <var79:Concat>*/
-}
-{
-((void(*)(val* self, val* p0))(var79->class->vft[COLOR_core__ropes__Concat__right_61d]))(var79, var_s); /* right= on <var79:Concat>*/
-}
-{
-((void(*)(val* self))(var79->class->vft[COLOR_core__kernel__Object__init]))(var79); /* init on <var79:Concat>*/
-}
-var = var79;
-goto RET_LABEL;
-} else {
-}
-var80 = NEW_core__ropes__Concat(&type_core__ropes__Concat);
-{
-var81 = core__ropes___FlatString___core__abstract_text__String___43d(self, var_sl);
-}
-var82 = var_s->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_s:String(Concat)> */
-if (unlikely(var82 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 603);
-fatal_exit(1);
-}
-{
-((void(*)(val* self, val* p0))(var80->class->vft[COLOR_core__ropes__Concat__left_61d]))(var80, var81); /* left= on <var80:Concat>*/
-}
-{
-((void(*)(val* self, val* p0))(var80->class->vft[COLOR_core__ropes__Concat__right_61d]))(var80, var82); /* right= on <var80:Concat>*/
-}
-{
-((void(*)(val* self))(var80->class->vft[COLOR_core__kernel__Object__init]))(var80); /* init on <var80:Concat>*/
-}
-var = var80;
-goto RET_LABEL;
-} else {
-PRINT_ERROR("Runtime error: %s", "Aborted");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 605);
-fatal_exit(1);
-}
-}
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIteratorPiece#node for (self: RopeCharIteratorPiece): String */
-val* core__ropes___core__ropes__RopeCharIteratorPiece___node(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <self:RopeCharIteratorPiece> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIteratorPiece#node= for (self: RopeCharIteratorPiece, String) */
-void core__ropes___core__ropes__RopeCharIteratorPiece___node_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val = p0; /* _node on <self:RopeCharIteratorPiece> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharIteratorPiece#ldone for (self: RopeCharIteratorPiece): Bool */
-short int core__ropes___core__ropes__RopeCharIteratorPiece___ldone(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <self:RopeCharIteratorPiece> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIteratorPiece#ldone= for (self: RopeCharIteratorPiece, Bool) */
-void core__ropes___core__ropes__RopeCharIteratorPiece___ldone_61d(val* self, short int p0) {
-self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = p0; /* _ldone on <self:RopeCharIteratorPiece> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharIteratorPiece#rdone for (self: RopeCharIteratorPiece): Bool */
-short int core__ropes___core__ropes__RopeCharIteratorPiece___rdone(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <self:RopeCharIteratorPiece> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIteratorPiece#rdone= for (self: RopeCharIteratorPiece, Bool) */
-void core__ropes___core__ropes__RopeCharIteratorPiece___rdone_61d(val* self, short int p0) {
-self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = p0; /* _rdone on <self:RopeCharIteratorPiece> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharIteratorPiece#prev for (self: RopeCharIteratorPiece): nullable RopeCharIteratorPiece */
-val* core__ropes___core__ropes__RopeCharIteratorPiece___prev(val* self) {
-val* var /* : nullable RopeCharIteratorPiece */;
-val* var1 /* : nullable RopeCharIteratorPiece */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <self:RopeCharIteratorPiece> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIteratorPiece#prev= for (self: RopeCharIteratorPiece, nullable RopeCharIteratorPiece) */
-void core__ropes___core__ropes__RopeCharIteratorPiece___prev_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val = p0; /* _prev on <self:RopeCharIteratorPiece> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharIteratorPiece#init for (self: RopeCharIteratorPiece) */
-void core__ropes___core__ropes__RopeCharIteratorPiece___core__kernel__Object__init(val* self) {
-{
-((void(*)(val* self))(self->class->vft[COLOR_core__ropes___core__ropes__RopeCharIteratorPiece___core__kernel__Object__init]))(self); /* init on <self:RopeCharIteratorPiece>*/
-}
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#ns for (self: RopeByteReverseIterator): NativeString */
-char* core__ropes___core__ropes__RopeByteReverseIterator___ns(val* self) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___ns].str; /* _ns on <self:RopeByteReverseIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#ns= for (self: RopeByteReverseIterator, NativeString) */
-void core__ropes___core__ropes__RopeByteReverseIterator___ns_61d(val* self, char* p0) {
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___ns].str = p0; /* _ns on <self:RopeByteReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#pns for (self: RopeByteReverseIterator): Int */
-long core__ropes___core__ropes__RopeByteReverseIterator___pns(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l; /* _pns on <self:RopeByteReverseIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#pns= for (self: RopeByteReverseIterator, Int) */
-void core__ropes___core__ropes__RopeByteReverseIterator___pns_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l = p0; /* _pns on <self:RopeByteReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#pos for (self: RopeByteReverseIterator): Int */
-long core__ropes___core__ropes__RopeByteReverseIterator___pos(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l; /* _pos on <self:RopeByteReverseIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#pos= for (self: RopeByteReverseIterator, Int) */
-void core__ropes___core__ropes__RopeByteReverseIterator___pos_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l = p0; /* _pos on <self:RopeByteReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#subs for (self: RopeByteReverseIterator): IndexedIterator[FlatString] */
-val* core__ropes___core__ropes__RopeByteReverseIterator___subs(val* self) {
-val* var /* : IndexedIterator[FlatString] */;
-val* var1 /* : IndexedIterator[FlatString] */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#subs= for (self: RopeByteReverseIterator, IndexedIterator[FlatString]) */
-void core__ropes___core__ropes__RopeByteReverseIterator___subs_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val = p0; /* _subs on <self:RopeByteReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#from for (self: RopeByteReverseIterator, Concat, Int) */
-void core__ropes___core__ropes__RopeByteReverseIterator___from(val* self, val* p0, long p1) {
-val* var_root /* var root: Concat */;
-long var_pos /* var pos: Int */;
-val* var /* : ReverseRopeSubstrings */;
-val* var4 /* : IndexedIterator[FlatString] */;
-val* var6 /* : IndexedIterator[FlatString] */;
-val* var7 /* : nullable Object */;
-val* var_s /* var s: FlatString */;
-char* var8 /* : NativeString */;
-val* var10 /* : IndexedIterator[FlatString] */;
-val* var12 /* : IndexedIterator[FlatString] */;
-long var13 /* : Int */;
-long var14 /* : Int */;
-short int var16 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var17 /* : Int */;
-{
-{ /* Inline kernel#Object#init (self) on <self:RopeByteReverseIterator> */
-RET_LABEL1:(void)0;
-}
-}
-var_root = p0;
-var_pos = p1;
-{
-{ /* Inline ropes#RopeByteReverseIterator#pos= (self,var_pos) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l = var_pos; /* _pos on <self:RopeByteReverseIterator> */
-RET_LABEL2:(void)0;
-}
-}
-var = NEW_core__ropes__ReverseRopeSubstrings(&type_core__ropes__ReverseRopeSubstrings);
-{
-core__ropes___core__ropes__ReverseRopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes#ReverseRopeSubstrings#from on <var:ReverseRopeSubstrings>*/
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs= (self,var) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val = var; /* _subs on <self:RopeByteReverseIterator> */
-RET_LABEL3:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-var7 = ((val*(*)(val* self))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var4); /* item on <var4:IndexedIterator[FlatString]>*/
-}
-var_s = var7;
-var8 = var_s->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_s:FlatString> */
-{
-{ /* Inline ropes#RopeByteReverseIterator#ns= (self,var8) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___ns].str = var8; /* _ns on <self:RopeByteReverseIterator> */
-RET_LABEL9:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var12 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var10 = var12;
-RET_LABEL11:(void)0;
-}
-}
-{
-var13 = ((long(*)(val* self))((((long)var10&3)?class_info[((long)var10&3)]:var10->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var10); /* index on <var10:IndexedIterator[FlatString]>*/
-}
-{
-{ /* Inline kernel#Int#- (var_pos,var13) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var13:Int> isa OTHER */
-/* <var13:Int> isa OTHER */
-var16 = 1; /* easy <var13:Int> isa OTHER*/
-if (unlikely(!var16)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var17 = var_pos - var13;
-var14 = var17;
-goto RET_LABEL15;
-RET_LABEL15:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns= (self,var14) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l = var14; /* _pns on <self:RopeByteReverseIterator> */
-RET_LABEL18:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeByteReverseIterator#index for (self: RopeByteReverseIterator): Int */
-long core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__IndexedIterator__index(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-{
-{ /* Inline ropes#RopeByteReverseIterator#pos (self) on <self:RopeByteReverseIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l; /* _pos on <self:RopeByteReverseIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#is_ok for (self: RopeByteReverseIterator): Bool */
-short int core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__Iterator__is_ok(val* self) {
-short int var /* : Bool */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-short int var4 /* : Bool */;
-short int var6 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var7 /* : Bool */;
-{
-{ /* Inline ropes#RopeByteReverseIterator#pos (self) on <self:RopeByteReverseIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l; /* _pos on <self:RopeByteReverseIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#>= (var1,0l) on <var1:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var6 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var6)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
-fatal_exit(1);
-}
-var7 = var1 >= 0l;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-}
-var = var4;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#item for (self: RopeByteReverseIterator): Byte */
-unsigned char core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__Iterator__item(val* self) {
-unsigned char var /* : Byte */;
-char* var1 /* : NativeString */;
-char* var3 /* : NativeString */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-unsigned char var7 /* : Byte */;
-unsigned char var9 /* : Byte */;
-{
-{ /* Inline ropes#RopeByteReverseIterator#ns (self) on <self:RopeByteReverseIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___ns].str; /* _ns on <self:RopeByteReverseIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns (self) on <self:RopeByteReverseIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l; /* _pns on <self:RopeByteReverseIterator> */
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#[] (var1,var4) on <var1:NativeString> */
-var9 = (unsigned char)((int)var1[var4]);
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#item for (self: Iterator[nullable Object]): nullable Object */
-val* VIRTUAL_core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__Iterator__item(val* self) {
-val* var /* : nullable Object */;
-unsigned char var1 /* : Byte */;
-val* var2 /* : nullable Object */;
-var1 = core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__Iterator__item(self);
-var2 = BOX_core__Byte(var1); /* autobox from Byte to nullable Object */
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteReverseIterator#next for (self: RopeByteReverseIterator) */
-void core__ropes___core__ropes__RopeByteReverseIterator___core__abstract_collection__Iterator__next(val* self) {
-val* var_ /* var : RopeByteReverseIterator */;
-long var /* : Int */;
-long var2 /* : Int */;
-long var3 /* : Int */;
-short int var5 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var6 /* : Int */;
-val* var_8 /* var : RopeByteReverseIterator */;
-long var9 /* : Int */;
-long var11 /* : Int */;
-long var12 /* : Int */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-const char* var_class_name17;
-long var18 /* : Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-short int var23 /* : Bool */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-short int var29 /* : Bool */;
-val* var30 /* : IndexedIterator[FlatString] */;
-val* var32 /* : IndexedIterator[FlatString] */;
-short int var33 /* : Bool */;
-short int var34 /* : Bool */;
-val* var35 /* : IndexedIterator[FlatString] */;
-val* var37 /* : IndexedIterator[FlatString] */;
-val* var38 /* : IndexedIterator[FlatString] */;
-val* var40 /* : IndexedIterator[FlatString] */;
-short int var41 /* : Bool */;
-short int var42 /* : Bool */;
-val* var43 /* : IndexedIterator[FlatString] */;
-val* var45 /* : IndexedIterator[FlatString] */;
-val* var46 /* : nullable Object */;
-val* var_s /* var s: FlatString */;
-char* var47 /* : NativeString */;
-long var49 /* : Int */;
-var_ = self;
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns (var_) on <var_:RopeByteReverseIterator> */
-var2 = var_->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l; /* _pns on <var_:RopeByteReverseIterator> */
-var = var2;
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var,1l) on <var:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var5 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var6 = var - 1l;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns= (var_,var3) on <var_:RopeByteReverseIterator> */
-var_->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l = var3; /* _pns on <var_:RopeByteReverseIterator> */
-RET_LABEL7:(void)0;
-}
-}
-var_8 = self;
-{
-{ /* Inline ropes#RopeByteReverseIterator#pos (var_8) on <var_8:RopeByteReverseIterator> */
-var11 = var_8->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l; /* _pos on <var_8:RopeByteReverseIterator> */
-var9 = var11;
-RET_LABEL10:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var9,1l) on <var9:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var14 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var14)) {
-var_class_name17 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var18 = var9 - 1l;
-var12 = var18;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pos= (var_8,var12) on <var_8:RopeByteReverseIterator> */
-var_8->attrs[COLOR_core__ropes__RopeByteReverseIterator___pos].l = var12; /* _pos on <var_8:RopeByteReverseIterator> */
-RET_LABEL19:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns (self) on <self:RopeByteReverseIterator> */
-var22 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l; /* _pns on <self:RopeByteReverseIterator> */
-var20 = var22;
-RET_LABEL21:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#>= (var20,0l) on <var20:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var25 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var25)) {
-var_class_name28 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
-fatal_exit(1);
-}
-var29 = var20 >= 0l;
-var23 = var29;
-goto RET_LABEL24;
-RET_LABEL24:(void)0;
-}
-}
-if (var23){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var32 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var32 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var30 = var32;
-RET_LABEL31:(void)0;
-}
-}
-{
-var33 = ((short int(*)(val* self))((((long)var30&3)?class_info[((long)var30&3)]:var30->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var30); /* is_ok on <var30:IndexedIterator[FlatString]>*/
-}
-var34 = !var33;
-if (var34){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var37 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var37 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var35 = var37;
-RET_LABEL36:(void)0;
-}
-}
-{
-((void(*)(val* self))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var35); /* next on <var35:IndexedIterator[FlatString]>*/
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var40 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var40 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var38 = var40;
-RET_LABEL39:(void)0;
-}
-}
-{
-var41 = ((short int(*)(val* self))((((long)var38&3)?class_info[((long)var38&3)]:var38->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var38); /* is_ok on <var38:IndexedIterator[FlatString]>*/
-}
-var42 = !var41;
-if (var42){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#subs (self) on <self:RopeByteReverseIterator> */
-var45 = self->attrs[COLOR_core__ropes__RopeByteReverseIterator___subs].val; /* _subs on <self:RopeByteReverseIterator> */
-if (unlikely(var45 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 632);
-fatal_exit(1);
-}
-var43 = var45;
-RET_LABEL44:(void)0;
-}
-}
-{
-var46 = ((val*(*)(val* self))((((long)var43&3)?class_info[((long)var43&3)]:var43->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var43); /* item on <var43:IndexedIterator[FlatString]>*/
-}
-var_s = var46;
-var47 = var_s->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var_s:FlatString> */
-{
-{ /* Inline ropes#RopeByteReverseIterator#ns= (self,var47) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___ns].str = var47; /* _ns on <self:RopeByteReverseIterator> */
-RET_LABEL48:(void)0;
-}
-}
-{
-var49 = core__flat___FlatText___last_byte(var_s);
-}
-{
-{ /* Inline ropes#RopeByteReverseIterator#pns= (self,var49) on <self:RopeByteReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeByteReverseIterator___pns].l = var49; /* _pns on <self:RopeByteReverseIterator> */
-RET_LABEL50:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#pns for (self: RopeByteIterator): Int */
-long core__ropes___core__ropes__RopeByteIterator___pns(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l; /* _pns on <self:RopeByteIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#pns= for (self: RopeByteIterator, Int) */
-void core__ropes___core__ropes__RopeByteIterator___pns_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l = p0; /* _pns on <self:RopeByteIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#ns for (self: RopeByteIterator): NativeString */
-char* core__ropes___core__ropes__RopeByteIterator___ns(val* self) {
-char* var /* : NativeString */;
-char* var1 /* : NativeString */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteIterator___ns].str; /* _ns on <self:RopeByteIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#ns= for (self: RopeByteIterator, NativeString) */
-void core__ropes___core__ropes__RopeByteIterator___ns_61d(val* self, char* p0) {
-self->attrs[COLOR_core__ropes__RopeByteIterator___ns].str = p0; /* _ns on <self:RopeByteIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#subs for (self: RopeByteIterator): IndexedIterator[FlatString] */
-val* core__ropes___core__ropes__RopeByteIterator___subs(val* self) {
-val* var /* : IndexedIterator[FlatString] */;
-val* var1 /* : IndexedIterator[FlatString] */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#subs= for (self: RopeByteIterator, IndexedIterator[FlatString]) */
-void core__ropes___core__ropes__RopeByteIterator___subs_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val = p0; /* _subs on <self:RopeByteIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#max for (self: RopeByteIterator): Int */
-long core__ropes___core__ropes__RopeByteIterator___max(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteIterator___max].l; /* _max on <self:RopeByteIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#max= for (self: RopeByteIterator, Int) */
-void core__ropes___core__ropes__RopeByteIterator___max_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeByteIterator___max].l = p0; /* _max on <self:RopeByteIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#pos for (self: RopeByteIterator): Int */
-long core__ropes___core__ropes__RopeByteIterator___pos(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeByteIterator___pos].l; /* _pos on <self:RopeByteIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#pos= for (self: RopeByteIterator, Int) */
-void core__ropes___core__ropes__RopeByteIterator___pos_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeByteIterator___pos].l = p0; /* _pos on <self:RopeByteIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#from for (self: RopeByteIterator, Concat, Int) */
-void core__ropes___core__ropes__RopeByteIterator___from(val* self, val* p0, long p1) {
-val* var_root /* var root: Concat */;
-long var_pos /* var pos: Int */;
-val* var /* : RopeSubstrings */;
-val* var3 /* : IndexedIterator[FlatString] */;
-val* var5 /* : IndexedIterator[FlatString] */;
-long var6 /* : Int */;
-long var7 /* : Int */;
-short int var9 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var10 /* : Int */;
-val* var13 /* : IndexedIterator[FlatString] */;
-val* var15 /* : IndexedIterator[FlatString] */;
-val* var16 /* : nullable Object */;
-char* var17 /* : NativeString */;
-long var19 /* : Int */;
-long var21 /* : Int */;
-long var22 /* : Int */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-const char* var_class_name27;
-long var28 /* : Int */;
-{
-{ /* Inline kernel#Object#init (self) on <self:RopeByteIterator> */
-RET_LABEL1:(void)0;
-}
-}
-var_root = p0;
-var_pos = p1;
-var = NEW_core__ropes__RopeSubstrings(&type_core__ropes__RopeSubstrings);
-{
-core__ropes___core__ropes__RopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes#RopeSubstrings#from on <var:RopeSubstrings>*/
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs= (self,var) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val = var; /* _subs on <self:RopeByteIterator> */
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var5 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var3 = var5;
-RET_LABEL4:(void)0;
-}
-}
-{
-var6 = ((long(*)(val* self))((((long)var3&3)?class_info[((long)var3&3)]:var3->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var3); /* index on <var3:IndexedIterator[FlatString]>*/
-}
-{
-{ /* Inline kernel#Int#- (var_pos,var6) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
-/* <var6:Int> isa OTHER */
-var9 = 1; /* easy <var6:Int> isa OTHER*/
-if (unlikely(!var9)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var10 = var_pos - var6;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pns= (self,var7) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l = var7; /* _pns on <self:RopeByteIterator> */
-RET_LABEL11:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pos= (self,var_pos) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___pos].l = var_pos; /* _pos on <self:RopeByteIterator> */
-RET_LABEL12:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var15 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var15 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var13 = var15;
-RET_LABEL14:(void)0;
-}
-}
-{
-var16 = ((val*(*)(val* self))((((long)var13&3)?class_info[((long)var13&3)]:var13->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var13); /* item on <var13:IndexedIterator[FlatString]>*/
-}
-var17 = var16->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var16:nullable Object(FlatString)> */
-{
-{ /* Inline ropes#RopeByteIterator#ns= (self,var17) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___ns].str = var17; /* _ns on <self:RopeByteIterator> */
-RET_LABEL18:(void)0;
-}
-}
-{
-{ /* Inline ropes#Concat#length (var_root) on <var_root:Concat> */
-var21 = var_root->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <var_root:Concat> */
-var19 = var21;
-RET_LABEL20:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var19,1l) on <var19:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var24 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var24)) {
-var_class_name27 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name27);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var28 = var19 - 1l;
-var22 = var28;
-goto RET_LABEL23;
-RET_LABEL23:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#max= (self,var22) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___max].l = var22; /* _max on <self:RopeByteIterator> */
-RET_LABEL29:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeByteIterator#item for (self: RopeByteIterator): Byte */
-unsigned char core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__Iterator__item(val* self) {
-unsigned char var /* : Byte */;
-char* var1 /* : NativeString */;
-char* var3 /* : NativeString */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-unsigned char var7 /* : Byte */;
-unsigned char var9 /* : Byte */;
-{
-{ /* Inline ropes#RopeByteIterator#ns (self) on <self:RopeByteIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteIterator___ns].str; /* _ns on <self:RopeByteIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pns (self) on <self:RopeByteIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l; /* _pns on <self:RopeByteIterator> */
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-{ /* Inline native#NativeString#[] (var1,var4) on <var1:NativeString> */
-var9 = (unsigned char)((int)var1[var4]);
-var7 = var9;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#item for (self: Iterator[nullable Object]): nullable Object */
-val* VIRTUAL_core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__Iterator__item(val* self) {
-val* var /* : nullable Object */;
-unsigned char var1 /* : Byte */;
-val* var2 /* : nullable Object */;
-var1 = core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__Iterator__item(self);
-var2 = BOX_core__Byte(var1); /* autobox from Byte to nullable Object */
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#is_ok for (self: RopeByteIterator): Bool */
-short int core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__Iterator__is_ok(val* self) {
-short int var /* : Bool */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var10 /* : Bool */;
-{
-{ /* Inline ropes#RopeByteIterator#pos (self) on <self:RopeByteIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteIterator___pos].l; /* _pos on <self:RopeByteIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#max (self) on <self:RopeByteIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeByteIterator___max].l; /* _max on <self:RopeByteIterator> */
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#<= (var1,var4) on <var1:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var9 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var9)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
-fatal_exit(1);
-}
-var10 = var1 <= var4;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#index for (self: RopeByteIterator): Int */
-long core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__IndexedIterator__index(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-{
-{ /* Inline ropes#RopeByteIterator#pos (self) on <self:RopeByteIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeByteIterator___pos].l; /* _pos on <self:RopeByteIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeByteIterator#next for (self: RopeByteIterator) */
-void core__ropes___core__ropes__RopeByteIterator___core__abstract_collection__Iterator__next(val* self) {
-val* var_ /* var : RopeByteIterator */;
-long var /* : Int */;
-long var2 /* : Int */;
-long var3 /* : Int */;
-short int var5 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var6 /* : Int */;
-val* var_8 /* var : RopeByteIterator */;
-long var9 /* : Int */;
-long var11 /* : Int */;
-long var12 /* : Int */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-const char* var_class_name17;
-long var18 /* : Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-val* var23 /* : IndexedIterator[FlatString] */;
-val* var25 /* : IndexedIterator[FlatString] */;
-val* var26 /* : nullable Object */;
-long var27 /* : Int */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-const char* var_class_name33;
-short int var34 /* : Bool */;
-val* var35 /* : IndexedIterator[FlatString] */;
-val* var37 /* : IndexedIterator[FlatString] */;
-short int var38 /* : Bool */;
-short int var39 /* : Bool */;
-val* var40 /* : IndexedIterator[FlatString] */;
-val* var42 /* : IndexedIterator[FlatString] */;
-val* var43 /* : IndexedIterator[FlatString] */;
-val* var45 /* : IndexedIterator[FlatString] */;
-short int var46 /* : Bool */;
-short int var47 /* : Bool */;
-val* var48 /* : IndexedIterator[FlatString] */;
-val* var50 /* : IndexedIterator[FlatString] */;
-val* var51 /* : nullable Object */;
-char* var52 /* : NativeString */;
-var_ = self;
-{
-{ /* Inline ropes#RopeByteIterator#pns (var_) on <var_:RopeByteIterator> */
-var2 = var_->attrs[COLOR_core__ropes__RopeByteIterator___pns].l; /* _pns on <var_:RopeByteIterator> */
-var = var2;
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var,1l) on <var:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var5 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var6 = var + 1l;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pns= (var_,var3) on <var_:RopeByteIterator> */
-var_->attrs[COLOR_core__ropes__RopeByteIterator___pns].l = var3; /* _pns on <var_:RopeByteIterator> */
-RET_LABEL7:(void)0;
-}
-}
-var_8 = self;
-{
-{ /* Inline ropes#RopeByteIterator#pos (var_8) on <var_8:RopeByteIterator> */
-var11 = var_8->attrs[COLOR_core__ropes__RopeByteIterator___pos].l; /* _pos on <var_8:RopeByteIterator> */
-var9 = var11;
-RET_LABEL10:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#+ (var9,1l) on <var9:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var14 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var14)) {
-var_class_name17 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
-}
-var18 = var9 + 1l;
-var12 = var18;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pos= (var_8,var12) on <var_8:RopeByteIterator> */
-var_8->attrs[COLOR_core__ropes__RopeByteIterator___pos].l = var12; /* _pos on <var_8:RopeByteIterator> */
-RET_LABEL19:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pns (self) on <self:RopeByteIterator> */
-var22 = self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l; /* _pns on <self:RopeByteIterator> */
-var20 = var22;
-RET_LABEL21:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var25 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var25 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var23 = var25;
-RET_LABEL24:(void)0;
-}
-}
-{
-var26 = ((val*(*)(val* self))((((long)var23&3)?class_info[((long)var23&3)]:var23->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var23); /* item on <var23:IndexedIterator[FlatString]>*/
-}
-var27 = var26->attrs[COLOR_core__abstract_text__FlatText___bytelen].l; /* _bytelen on <var26:nullable Object(FlatString)> */
-{
-{ /* Inline kernel#Int#< (var20,var27) on <var20:Int> */
-/* Covariant cast for argument 0 (i) <var27:Int> isa OTHER */
-/* <var27:Int> isa OTHER */
-var30 = 1; /* easy <var27:Int> isa OTHER*/
-if (unlikely(!var30)) {
-var_class_name33 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var34 = var20 < var27;
-var28 = var34;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
-}
-}
-if (var28){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var37 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var37 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var35 = var37;
-RET_LABEL36:(void)0;
-}
-}
-{
-var38 = ((short int(*)(val* self))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var35); /* is_ok on <var35:IndexedIterator[FlatString]>*/
-}
-var39 = !var38;
-if (var39){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var42 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var42 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var40 = var42;
-RET_LABEL41:(void)0;
-}
-}
-{
-((void(*)(val* self))((((long)var40&3)?class_info[((long)var40&3)]:var40->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var40); /* next on <var40:IndexedIterator[FlatString]>*/
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var45 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var45 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var43 = var45;
-RET_LABEL44:(void)0;
-}
-}
-{
-var46 = ((short int(*)(val* self))((((long)var43&3)?class_info[((long)var43&3)]:var43->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var43); /* is_ok on <var43:IndexedIterator[FlatString]>*/
-}
-var47 = !var46;
-if (var47){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#RopeByteIterator#subs (self) on <self:RopeByteIterator> */
-var50 = self->attrs[COLOR_core__ropes__RopeByteIterator___subs].val; /* _subs on <self:RopeByteIterator> */
-if (unlikely(var50 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 671);
-fatal_exit(1);
-}
-var48 = var50;
-RET_LABEL49:(void)0;
-}
-}
-{
-var51 = ((val*(*)(val* self))((((long)var48&3)?class_info[((long)var48&3)]:var48->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var48); /* item on <var48:IndexedIterator[FlatString]>*/
-}
-var52 = var51->attrs[COLOR_core__abstract_text__FlatText___items].str; /* _items on <var51:nullable Object(FlatString)> */
-{
-{ /* Inline ropes#RopeByteIterator#ns= (self,var52) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___ns].str = var52; /* _ns on <self:RopeByteIterator> */
-RET_LABEL53:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeByteIterator#pns= (self,0l) on <self:RopeByteIterator> */
-self->attrs[COLOR_core__ropes__RopeByteIterator___pns].l = 0l; /* _pns on <self:RopeByteIterator> */
-RET_LABEL54:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeCharReverseIterator#ns for (self: RopeCharReverseIterator): String */
-val* core__ropes___core__ropes__RopeCharReverseIterator___ns(val* self) {
-val* var /* : String */;
-val* var1 /* : String */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val; /* _ns on <self:RopeCharReverseIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _ns");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 709);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharReverseIterator#ns= for (self: RopeCharReverseIterator, String) */
-void core__ropes___core__ropes__RopeCharReverseIterator___ns_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val = p0; /* _ns on <self:RopeCharReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharReverseIterator#pns for (self: RopeCharReverseIterator): Int */
-long core__ropes___core__ropes__RopeCharReverseIterator___pns(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l; /* _pns on <self:RopeCharReverseIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharReverseIterator#pns= for (self: RopeCharReverseIterator, Int) */
-void core__ropes___core__ropes__RopeCharReverseIterator___pns_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l = p0; /* _pns on <self:RopeCharReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharReverseIterator#pos for (self: RopeCharReverseIterator): Int */
-long core__ropes___core__ropes__RopeCharReverseIterator___pos(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l; /* _pos on <self:RopeCharReverseIterator> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharReverseIterator#pos= for (self: RopeCharReverseIterator, Int) */
-void core__ropes___core__ropes__RopeCharReverseIterator___pos_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l = p0; /* _pos on <self:RopeCharReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharReverseIterator#subs for (self: RopeCharReverseIterator): IndexedIterator[String] */
-val* core__ropes___core__ropes__RopeCharReverseIterator___subs(val* self) {
-val* var /* : IndexedIterator[String] */;
-val* var1 /* : IndexedIterator[String] */;
-var1 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
-fatal_exit(1);
-}
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharReverseIterator#subs= for (self: RopeCharReverseIterator, IndexedIterator[String]) */
-void core__ropes___core__ropes__RopeCharReverseIterator___subs_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val = p0; /* _subs on <self:RopeCharReverseIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeCharReverseIterator#from for (self: RopeCharReverseIterator, Concat, Int) */
-void core__ropes___core__ropes__RopeCharReverseIterator___from(val* self, val* p0, long p1) {
-val* var_root /* var root: Concat */;
-long var_pos /* var pos: Int */;
-val* var /* : ReverseRopeSubstrings */;
-val* var4 /* : IndexedIterator[String] */;
-val* var6 /* : IndexedIterator[String] */;
-val* var7 /* : nullable Object */;
-val* var9 /* : IndexedIterator[String] */;
-val* var11 /* : IndexedIterator[String] */;
-long var12 /* : Int */;
-long var13 /* : Int */;
-short int var15 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var16 /* : Int */;
-{
-{ /* Inline kernel#Object#init (self) on <self:RopeCharReverseIterator> */
-RET_LABEL1:(void)0;
-}
-}
-var_root = p0;
-var_pos = p1;
-{
-{ /* Inline ropes#RopeCharReverseIterator#pos= (self,var_pos) on <self:RopeCharReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l = var_pos; /* _pos on <self:RopeCharReverseIterator> */
-RET_LABEL2:(void)0;
-}
-}
-var = NEW_core__ropes__ReverseRopeSubstrings(&type_core__ropes__ReverseRopeSubstrings);
-{
-core__ropes___core__ropes__ReverseRopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes#ReverseRopeSubstrings#from on <var:ReverseRopeSubstrings>*/
-}
-{
-{ /* Inline ropes#RopeCharReverseIterator#subs= (self,var) on <self:RopeCharReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val = var; /* _subs on <self:RopeCharReverseIterator> */
-RET_LABEL3:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
-fatal_exit(1);
-}
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-var7 = ((val*(*)(val* self))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var4); /* item on <var4:IndexedIterator[String]>*/
-}
-{
-{ /* Inline ropes#RopeCharReverseIterator#ns= (self,var7) on <self:RopeCharReverseIterator> */
-self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val = var7; /* _ns on <self:RopeCharReverseIterator> */
-RET_LABEL8:(void)0;
 }
+{
+var12 = ((long(*)(val* self))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var9); /* index on <var9:IndexedIterator[String]>*/
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
-var11 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
-fatal_exit(1);
-}
-var9 = var11;
-RET_LABEL10:(void)0;
-}
-}
-{
-var12 = ((long(*)(val* self))((((long)var9&3)?class_info[((long)var9&3)]:var9->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var9); /* index on <var9:IndexedIterator[String]>*/
-}
-{
-{ /* Inline kernel#Int#- (var_pos,var12) on <var_pos:Int> */
+{ /* Inline kernel$Int$- (var_pos,var12) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <var12:Int> isa OTHER */
 /* <var12:Int> isa OTHER */
 var15 = 1; /* easy <var12:Int> isa OTHER*/
 if (unlikely(!var15)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var16 = var_pos - var12;
@@ -7022,20 +2934,20 @@ RET_LABEL14:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns= (self,var13) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns= (self,var13) on <self:RopeCharReverseIterator> */
 self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l = var13; /* _pns on <self:RopeCharReverseIterator> */
 RET_LABEL17:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method ropes#RopeCharReverseIterator#index for (self: RopeCharReverseIterator): Int */
+/* method ropes$RopeCharReverseIterator$index for (self: RopeCharReverseIterator): Int */
 long core__ropes___core__ropes__RopeCharReverseIterator___core__abstract_collection__IndexedIterator__index(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
 long var3 /* : Int */;
 {
-{ /* Inline ropes#RopeCharReverseIterator#pos (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pos (self) on <self:RopeCharReverseIterator> */
 var3 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l; /* _pos on <self:RopeCharReverseIterator> */
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -7046,7 +2958,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharReverseIterator#is_ok for (self: RopeCharReverseIterator): Bool */
+/* method ropes$RopeCharReverseIterator$is_ok for (self: RopeCharReverseIterator): Bool */
 short int core__ropes___core__ropes__RopeCharReverseIterator___core__abstract_collection__Iterator__is_ok(val* self) {
 short int var /* : Bool */;
 long var1 /* : Int */;
@@ -7058,21 +2970,21 @@ int idtype;
 const char* var_class_name;
 short int var7 /* : Bool */;
 {
-{ /* Inline ropes#RopeCharReverseIterator#pos (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pos (self) on <self:RopeCharReverseIterator> */
 var3 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l; /* _pos on <self:RopeCharReverseIterator> */
 var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#>= (var1,0l) on <var1:Int> */
+{ /* Inline kernel$Int$>= (var1,0l) on <var1:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var6 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var6)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var7 = var1 >= 0l;
@@ -7086,7 +2998,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharReverseIterator#item for (self: RopeCharReverseIterator): Char */
+/* method ropes$RopeCharReverseIterator$item for (self: RopeCharReverseIterator): Char */
 uint32_t core__ropes___core__ropes__RopeCharReverseIterator___core__abstract_collection__Iterator__item(val* self) {
 uint32_t var /* : Char */;
 val* var1 /* : String */;
@@ -7095,11 +3007,14 @@ long var4 /* : Int */;
 long var6 /* : Int */;
 uint32_t var7 /* : Char */;
 {
-{ /* Inline ropes#RopeCharReverseIterator#ns (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$ns (self) on <self:RopeCharReverseIterator> */
 var3 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val; /* _ns on <self:RopeCharReverseIterator> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _ns");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 709);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 419);
 fatal_exit(1);
 }
 var1 = var3;
@@ -7107,7 +3022,7 @@ RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns (self) on <self:RopeCharReverseIterator> */
 var6 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l; /* _pns on <self:RopeCharReverseIterator> */
 var4 = var6;
 RET_LABEL5:(void)0;
@@ -7121,7 +3036,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharReverseIterator#item for (self: Iterator[nullable Object]): nullable Object */
+/* method ropes$RopeCharReverseIterator$item for (self: Iterator[nullable Object]): nullable Object */
 val* VIRTUAL_core__ropes___core__ropes__RopeCharReverseIterator___core__abstract_collection__Iterator__item(val* self) {
 val* var /* : nullable Object */;
 uint32_t var1 /* : Char */;
@@ -7132,7 +3047,7 @@ var = var2;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharReverseIterator#next for (self: RopeCharReverseIterator) */
+/* method ropes$RopeCharReverseIterator$next for (self: RopeCharReverseIterator) */
 void core__ropes___core__ropes__RopeCharReverseIterator___core__abstract_collection__Iterator__next(val* self) {
 val* var_ /* var : RopeCharReverseIterator */;
 long var /* : Int */;
@@ -7184,21 +3099,21 @@ const char* var_class_name57;
 long var58 /* : Int */;
 var_ = self;
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns (var_) on <var_:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns (var_) on <var_:RopeCharReverseIterator> */
 var2 = var_->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l; /* _pns on <var_:RopeCharReverseIterator> */
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var,1l) on <var:Int> */
+{ /* Inline kernel$Int$- (var,1l) on <var:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var5 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var5)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var6 = var - 1l;
@@ -7208,28 +3123,28 @@ RET_LABEL4:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns= (var_,var3) on <var_:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns= (var_,var3) on <var_:RopeCharReverseIterator> */
 var_->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l = var3; /* _pns on <var_:RopeCharReverseIterator> */
 RET_LABEL7:(void)0;
 }
 }
 var_8 = self;
 {
-{ /* Inline ropes#RopeCharReverseIterator#pos (var_8) on <var_8:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pos (var_8) on <var_8:RopeCharReverseIterator> */
 var11 = var_8->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l; /* _pos on <var_8:RopeCharReverseIterator> */
 var9 = var11;
 RET_LABEL10:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var9,1l) on <var9:Int> */
+{ /* Inline kernel$Int$- (var9,1l) on <var9:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var14 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var14)) {
 var_class_name17 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var18 = var9 - 1l;
@@ -7239,27 +3154,27 @@ RET_LABEL13:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pos= (var_8,var12) on <var_8:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pos= (var_8,var12) on <var_8:RopeCharReverseIterator> */
 var_8->attrs[COLOR_core__ropes__RopeCharReverseIterator___pos].l = var12; /* _pos on <var_8:RopeCharReverseIterator> */
 RET_LABEL19:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns (self) on <self:RopeCharReverseIterator> */
 var22 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l; /* _pns on <self:RopeCharReverseIterator> */
 var20 = var22;
 RET_LABEL21:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#>= (var20,0l) on <var20:Int> */
+{ /* Inline kernel$Int$>= (var20,0l) on <var20:Int> */
 /* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
 /* <0l:Int> isa OTHER */
 var25 = 1; /* easy <0l:Int> isa OTHER*/
 if (unlikely(!var25)) {
 var_class_name28 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var29 = var20 >= 0l;
@@ -7273,11 +3188,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
 var32 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
 if (unlikely(var32 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
 var30 = var32;
@@ -7293,11 +3211,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
 var37 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
 if (unlikely(var37 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
 var35 = var37;
@@ -7308,11 +3229,14 @@ RET_LABEL36:(void)0;
 ((void(*)(val* self))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var35); /* next on <var35:IndexedIterator[String]>*/
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
 var40 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
 if (unlikely(var40 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
 var38 = var40;
@@ -7328,11 +3252,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#subs (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$subs (self) on <self:RopeCharReverseIterator> */
 var45 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___subs].val; /* _subs on <self:RopeCharReverseIterator> */
 if (unlikely(var45 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 715);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 425);
 fatal_exit(1);
 }
 var43 = var45;
@@ -7343,17 +3270,20 @@ RET_LABEL44:(void)0;
 var46 = ((val*(*)(val* self))((((long)var43&3)?class_info[((long)var43&3)]:var43->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var43); /* item on <var43:IndexedIterator[String]>*/
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#ns= (self,var46) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$ns= (self,var46) on <self:RopeCharReverseIterator> */
 self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val = var46; /* _ns on <self:RopeCharReverseIterator> */
 RET_LABEL47:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#ns (self) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$ns (self) on <self:RopeCharReverseIterator> */
 var50 = self->attrs[COLOR_core__ropes__RopeCharReverseIterator___ns].val; /* _ns on <self:RopeCharReverseIterator> */
 if (unlikely(var50 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _ns");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 709);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 419);
 fatal_exit(1);
 }
 var48 = var50;
@@ -7364,14 +3294,14 @@ RET_LABEL49:(void)0;
 var51 = ((long(*)(val* self))(var48->class->vft[COLOR_core__abstract_text__Text__length]))(var48); /* length on <var48:String>*/
 }
 {
-{ /* Inline kernel#Int#- (var51,1l) on <var51:Int> */
+{ /* Inline kernel$Int$- (var51,1l) on <var51:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var54 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var54)) {
 var_class_name57 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name57);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var58 = var51 - 1l;
@@ -7381,14 +3311,14 @@ RET_LABEL53:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharReverseIterator#pns= (self,var52) on <self:RopeCharReverseIterator> */
+{ /* Inline ropes$RopeCharReverseIterator$pns= (self,var52) on <self:RopeCharReverseIterator> */
 self->attrs[COLOR_core__ropes__RopeCharReverseIterator___pns].l = var52; /* _pns on <self:RopeCharReverseIterator> */
 RET_LABEL59:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#pns for (self: RopeCharIterator): Int */
+/* method ropes$RopeCharIterator$pns for (self: RopeCharIterator): Int */
 long core__ropes___core__ropes__RopeCharIterator___pns(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -7397,50 +3327,56 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharIterator#pns= for (self: RopeCharIterator, Int) */
+/* method ropes$RopeCharIterator$pns= for (self: RopeCharIterator, Int) */
 void core__ropes___core__ropes__RopeCharIterator___pns_61d(val* self, long p0) {
 self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = p0; /* _pns on <self:RopeCharIterator> */
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#str for (self: RopeCharIterator): String */
+/* method ropes$RopeCharIterator$str for (self: RopeCharIterator): String */
 val* core__ropes___core__ropes__RopeCharIterator___str(val* self) {
 val* var /* : String */;
 val* var1 /* : String */;
 var1 = self->attrs[COLOR_core__ropes__RopeCharIterator___str].val; /* _str on <self:RopeCharIterator> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 750);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 460);
 fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharIterator#str= for (self: RopeCharIterator, String) */
+/* method ropes$RopeCharIterator$str= for (self: RopeCharIterator, String) */
 void core__ropes___core__ropes__RopeCharIterator___str_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__RopeCharIterator___str].val = p0; /* _str on <self:RopeCharIterator> */
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#subs for (self: RopeCharIterator): IndexedIterator[String] */
+/* method ropes$RopeCharIterator$subs for (self: RopeCharIterator): IndexedIterator[String] */
 val* core__ropes___core__ropes__RopeCharIterator___subs(val* self) {
 val* var /* : IndexedIterator[String] */;
 val* var1 /* : IndexedIterator[String] */;
 var1 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
 fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharIterator#subs= for (self: RopeCharIterator, IndexedIterator[String]) */
+/* method ropes$RopeCharIterator$subs= for (self: RopeCharIterator, IndexedIterator[String]) */
 void core__ropes___core__ropes__RopeCharIterator___subs_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val = p0; /* _subs on <self:RopeCharIterator> */
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#max for (self: RopeCharIterator): Int */
+/* method ropes$RopeCharIterator$max for (self: RopeCharIterator): Int */
 long core__ropes___core__ropes__RopeCharIterator___max(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -7449,12 +3385,12 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharIterator#max= for (self: RopeCharIterator, Int) */
+/* method ropes$RopeCharIterator$max= for (self: RopeCharIterator, Int) */
 void core__ropes___core__ropes__RopeCharIterator___max_61d(val* self, long p0) {
 self->attrs[COLOR_core__ropes__RopeCharIterator___max].l = p0; /* _max on <self:RopeCharIterator> */
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#pos for (self: RopeCharIterator): Int */
+/* method ropes$RopeCharIterator$pos for (self: RopeCharIterator): Int */
 long core__ropes___core__ropes__RopeCharIterator___pos(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -7463,12 +3399,12 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeCharIterator#pos= for (self: RopeCharIterator, Int) */
+/* method ropes$RopeCharIterator$pos= for (self: RopeCharIterator, Int) */
 void core__ropes___core__ropes__RopeCharIterator___pos_61d(val* self, long p0) {
 self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l = p0; /* _pos on <self:RopeCharIterator> */
 RET_LABEL:;
 }
-/* method ropes#RopeCharIterator#from for (self: RopeCharIterator, Concat, Int) */
+/* method ropes$RopeCharIterator$from for (self: RopeCharIterator, Concat, Int) */
 void core__ropes___core__ropes__RopeCharIterator___from(val* self, val* p0, long p1) {
 val* var_root /* var root: Concat */;
 long var_pos /* var pos: Int */;
@@ -7490,1582 +3426,1301 @@ long var20 /* : Int */;
 long var21 /* : Int */;
 short int var23 /* : Bool */;
 int cltype24;
-int idtype25;
-const char* var_class_name26;
-long var27 /* : Int */;
-{
-{ /* Inline kernel#Object#init (self) on <self:RopeCharIterator> */
-RET_LABEL1:(void)0;
-}
-}
-var_root = p0;
-var_pos = p1;
-var = NEW_core__ropes__RopeSubstrings(&type_core__ropes__RopeSubstrings);
-{
-core__ropes___core__ropes__RopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes#RopeSubstrings#from on <var:RopeSubstrings>*/
-}
-{
-{ /* Inline ropes#RopeCharIterator#subs= (self,var) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val = var; /* _subs on <self:RopeCharIterator> */
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var5 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var5 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
-fatal_exit(1);
-}
-var3 = var5;
-RET_LABEL4:(void)0;
-}
-}
-{
-var6 = ((long(*)(val* self))((((long)var3&3)?class_info[((long)var3&3)]:var3->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var3); /* index on <var3:IndexedIterator[String]>*/
-}
-{
-{ /* Inline kernel#Int#- (var_pos,var6) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
-/* <var6:Int> isa OTHER */
-var9 = 1; /* easy <var6:Int> isa OTHER*/
-if (unlikely(!var9)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var10 = var_pos - var6;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#pns= (self,var7) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = var7; /* _pns on <self:RopeCharIterator> */
-RET_LABEL11:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#pos= (self,var_pos) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l = var_pos; /* _pos on <self:RopeCharIterator> */
-RET_LABEL12:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var15 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var15 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
-fatal_exit(1);
-}
-var13 = var15;
-RET_LABEL14:(void)0;
-}
-}
-{
-var16 = ((val*(*)(val* self))((((long)var13&3)?class_info[((long)var13&3)]:var13->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var13); /* item on <var13:IndexedIterator[String]>*/
-}
-{
-{ /* Inline ropes#RopeCharIterator#str= (self,var16) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___str].val = var16; /* _str on <self:RopeCharIterator> */
-RET_LABEL17:(void)0;
-}
-}
-{
-{ /* Inline ropes#Concat#length (var_root) on <var_root:Concat> */
-var20 = var_root->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <var_root:Concat> */
-var18 = var20;
-RET_LABEL19:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#- (var18,1l) on <var18:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var23 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var23)) {
-var_class_name26 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
-}
-var27 = var18 - 1l;
-var21 = var27;
-goto RET_LABEL22;
-RET_LABEL22:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#max= (self,var21) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___max].l = var21; /* _max on <self:RopeCharIterator> */
-RET_LABEL28:(void)0;
-}
-}
-RET_LABEL:;
-}
-/* method ropes#RopeCharIterator#item for (self: RopeCharIterator): Char */
-uint32_t core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(val* self) {
-uint32_t var /* : Char */;
-val* var1 /* : String */;
-val* var3 /* : String */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-uint32_t var7 /* : Char */;
-{
-{ /* Inline ropes#RopeCharIterator#str (self) on <self:RopeCharIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___str].val; /* _str on <self:RopeCharIterator> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 750);
-fatal_exit(1);
-}
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#pns (self) on <self:RopeCharIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <self:RopeCharIterator> */
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-var7 = ((uint32_t(*)(val* self, long p0))(var1->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(var1, var4); /* [] on <var1:String>*/
-}
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIterator#item for (self: Iterator[nullable Object]): nullable Object */
-val* VIRTUAL_core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(val* self) {
-val* var /* : nullable Object */;
-uint32_t var1 /* : Char */;
-val* var2 /* : nullable Object */;
-var1 = core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(self);
-var2 = (val*)((long)(var1)<<2|2);
-var = var2;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIterator#is_ok for (self: RopeCharIterator): Bool */
-short int core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__is_ok(val* self) {
-short int var /* : Bool */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-long var4 /* : Int */;
-long var6 /* : Int */;
-short int var7 /* : Bool */;
-short int var9 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var10 /* : Bool */;
-{
-{ /* Inline ropes#RopeCharIterator#pos (self) on <self:RopeCharIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <self:RopeCharIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-{
-{ /* Inline ropes#RopeCharIterator#max (self) on <self:RopeCharIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeCharIterator___max].l; /* _max on <self:RopeCharIterator> */
-var4 = var6;
-RET_LABEL5:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#<= (var1,var4) on <var1:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var9 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var9)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
-fatal_exit(1);
-}
-var10 = var1 <= var4;
-var7 = var10;
-goto RET_LABEL8;
-RET_LABEL8:(void)0;
-}
-}
-var = var7;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIterator#index for (self: RopeCharIterator): Int */
-long core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__IndexedIterator__index(val* self) {
-long var /* : Int */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-{
-{ /* Inline ropes#RopeCharIterator#pos (self) on <self:RopeCharIterator> */
-var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <self:RopeCharIterator> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
-var = var1;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
-}
-/* method ropes#RopeCharIterator#next for (self: RopeCharIterator) */
-void core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__next(val* self) {
-val* var_ /* var : RopeCharIterator */;
-long var /* : Int */;
-long var2 /* : Int */;
-long var3 /* : Int */;
-short int var5 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-long var6 /* : Int */;
-val* var_8 /* var : RopeCharIterator */;
-long var9 /* : Int */;
-long var11 /* : Int */;
-long var12 /* : Int */;
-short int var14 /* : Bool */;
-int cltype15;
-int idtype16;
-const char* var_class_name17;
-long var18 /* : Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-val* var23 /* : IndexedIterator[String] */;
-val* var25 /* : IndexedIterator[String] */;
-val* var26 /* : nullable Object */;
-long var27 /* : Int */;
-short int var28 /* : Bool */;
-short int var30 /* : Bool */;
-int cltype31;
-int idtype32;
-const char* var_class_name33;
-short int var34 /* : Bool */;
-val* var35 /* : IndexedIterator[String] */;
-val* var37 /* : IndexedIterator[String] */;
-short int var38 /* : Bool */;
-short int var39 /* : Bool */;
-val* var40 /* : IndexedIterator[String] */;
-val* var42 /* : IndexedIterator[String] */;
-val* var43 /* : IndexedIterator[String] */;
-val* var45 /* : IndexedIterator[String] */;
-short int var46 /* : Bool */;
-short int var47 /* : Bool */;
-val* var48 /* : IndexedIterator[String] */;
-val* var50 /* : IndexedIterator[String] */;
-val* var51 /* : nullable Object */;
-var_ = self;
+int idtype25;
+const char* var_class_name26;
+long var27 /* : Int */;
 {
-{ /* Inline ropes#RopeCharIterator#pns (var_) on <var_:RopeCharIterator> */
-var2 = var_->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <var_:RopeCharIterator> */
-var = var2;
+{ /* Inline kernel$Object$init (self) on <self:RopeCharIterator> */
 RET_LABEL1:(void)0;
 }
 }
+var_root = p0;
+var_pos = p1;
+var = NEW_core__ropes__RopeSubstrings(&type_core__ropes__RopeSubstrings);
 {
-{ /* Inline kernel#Int#+ (var,1l) on <var:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var5 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
-fatal_exit(1);
+core__ropes___core__ropes__RopeSubstrings___from(var, var_root, var_pos); /* Direct call ropes$RopeSubstrings$from on <var:RopeSubstrings>*/
 }
-var6 = var + 1l;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
+{
+{ /* Inline ropes$RopeCharIterator$subs= (self,var) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val = var; /* _subs on <self:RopeCharIterator> */
+RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIterator#pns= (var_,var3) on <var_:RopeCharIterator> */
-var_->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = var3; /* _pns on <var_:RopeCharIterator> */
-RET_LABEL7:(void)0;
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var5 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
+fatal_exit(1);
 }
-var_8 = self;
-{
-{ /* Inline ropes#RopeCharIterator#pos (var_8) on <var_8:RopeCharIterator> */
-var11 = var_8->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <var_8:RopeCharIterator> */
-var9 = var11;
-RET_LABEL10:(void)0;
+var3 = var5;
+RET_LABEL4:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var9,1l) on <var9:Int> */
-/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
-/* <1l:Int> isa OTHER */
-var14 = 1; /* easy <1l:Int> isa OTHER*/
-if (unlikely(!var14)) {
-var_class_name17 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
+var6 = ((long(*)(val* self))((((long)var3&3)?class_info[((long)var3&3)]:var3->class)->vft[COLOR_core__abstract_collection__IndexedIterator__index]))(var3); /* index on <var3:IndexedIterator[String]>*/
+}
+{
+{ /* Inline kernel$Int$- (var_pos,var6) on <var_pos:Int> */
+/* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
+/* <var6:Int> isa OTHER */
+var9 = 1; /* easy <var6:Int> isa OTHER*/
+if (unlikely(!var9)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
 PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var18 = var9 + 1l;
-var12 = var18;
-goto RET_LABEL13;
-RET_LABEL13:(void)0;
+var10 = var_pos - var6;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIterator#pos= (var_8,var12) on <var_8:RopeCharIterator> */
-var_8->attrs[COLOR_core__ropes__RopeCharIterator___pos].l = var12; /* _pos on <var_8:RopeCharIterator> */
-RET_LABEL19:(void)0;
+{ /* Inline ropes$RopeCharIterator$pns= (self,var7) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = var7; /* _pns on <self:RopeCharIterator> */
+RET_LABEL11:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIterator#pns (self) on <self:RopeCharIterator> */
-var22 = self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <self:RopeCharIterator> */
-var20 = var22;
-RET_LABEL21:(void)0;
+{ /* Inline ropes$RopeCharIterator$pos= (self,var_pos) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l = var_pos; /* _pos on <self:RopeCharIterator> */
+RET_LABEL12:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var25 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var25 == NULL)) {
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var15 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var15 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
 fatal_exit(1);
 }
-var23 = var25;
-RET_LABEL24:(void)0;
-}
+var13 = var15;
+RET_LABEL14:(void)0;
 }
-{
-var26 = ((val*(*)(val* self))((((long)var23&3)?class_info[((long)var23&3)]:var23->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var23); /* item on <var23:IndexedIterator[String]>*/
 }
 {
-var27 = ((long(*)(val* self))(var26->class->vft[COLOR_core__abstract_text__Text__length]))(var26); /* length on <var26:nullable Object(String)>*/
+var16 = ((val*(*)(val* self))((((long)var13&3)?class_info[((long)var13&3)]:var13->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var13); /* item on <var13:IndexedIterator[String]>*/
 }
 {
-{ /* Inline kernel#Int#< (var20,var27) on <var20:Int> */
-/* Covariant cast for argument 0 (i) <var27:Int> isa OTHER */
-/* <var27:Int> isa OTHER */
-var30 = 1; /* easy <var27:Int> isa OTHER*/
-if (unlikely(!var30)) {
-var_class_name33 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
+{ /* Inline ropes$RopeCharIterator$str= (self,var16) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___str].val = var16; /* _str on <self:RopeCharIterator> */
+RET_LABEL17:(void)0;
 }
-var34 = var20 < var27;
-var28 = var34;
-goto RET_LABEL29;
-RET_LABEL29:(void)0;
 }
+{
+{ /* Inline ropes$Concat$length (var_root) on <var_root:Concat> */
+var20 = var_root->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <var_root:Concat> */
+var18 = var20;
+RET_LABEL19:(void)0;
 }
-if (var28){
-goto RET_LABEL;
-} else {
 }
 {
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var37 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var37 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
+{ /* Inline kernel$Int$- (var18,1l) on <var18:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var23 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var23)) {
+var_class_name26 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name26);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var35 = var37;
-RET_LABEL36:(void)0;
-}
-}
-{
-var38 = ((short int(*)(val* self))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var35); /* is_ok on <var35:IndexedIterator[String]>*/
+var27 = var18 - 1l;
+var21 = var27;
+goto RET_LABEL22;
+RET_LABEL22:(void)0;
 }
-var39 = !var38;
-if (var39){
-goto RET_LABEL;
-} else {
 }
 {
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var42 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var42 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
-fatal_exit(1);
+{ /* Inline ropes$RopeCharIterator$max= (self,var21) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___max].l = var21; /* _max on <self:RopeCharIterator> */
+RET_LABEL28:(void)0;
 }
-var40 = var42;
-RET_LABEL41:(void)0;
 }
+RET_LABEL:;
 }
+/* method ropes$RopeCharIterator$item for (self: RopeCharIterator): Char */
+uint32_t core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(val* self) {
+uint32_t var /* : Char */;
+val* var1 /* : String */;
+val* var3 /* : String */;
+long var4 /* : Int */;
+long var6 /* : Int */;
+uint32_t var7 /* : Char */;
 {
-((void(*)(val* self))((((long)var40&3)?class_info[((long)var40&3)]:var40->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var40); /* next on <var40:IndexedIterator[String]>*/
+{ /* Inline ropes$RopeCharIterator$str (self) on <self:RopeCharIterator> */
+var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___str].val; /* _str on <self:RopeCharIterator> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var45 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var45 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 460);
 fatal_exit(1);
 }
-var43 = var45;
-RET_LABEL44:(void)0;
+var1 = var3;
+RET_LABEL2:(void)0;
 }
 }
 {
-var46 = ((short int(*)(val* self))((((long)var43&3)?class_info[((long)var43&3)]:var43->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var43); /* is_ok on <var43:IndexedIterator[String]>*/
+{ /* Inline ropes$RopeCharIterator$pns (self) on <self:RopeCharIterator> */
+var6 = self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <self:RopeCharIterator> */
+var4 = var6;
+RET_LABEL5:(void)0;
 }
-var47 = !var46;
-if (var47){
-goto RET_LABEL;
-} else {
 }
 {
-{ /* Inline ropes#RopeCharIterator#subs (self) on <self:RopeCharIterator> */
-var50 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
-if (unlikely(var50 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 752);
-fatal_exit(1);
+var7 = ((uint32_t(*)(val* self, long p0))(var1->class->vft[COLOR_core__abstract_text__Text___91d_93d]))(var1, var4); /* [] on <var1:String>*/
 }
-var48 = var50;
-RET_LABEL49:(void)0;
+var = var7;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
 }
+/* method ropes$RopeCharIterator$item for (self: Iterator[nullable Object]): nullable Object */
+val* VIRTUAL_core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(val* self) {
+val* var /* : nullable Object */;
+uint32_t var1 /* : Char */;
+val* var2 /* : nullable Object */;
+var1 = core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__item(self);
+var2 = (val*)((long)(var1)<<2|2);
+var = var2;
+RET_LABEL:;
+return var;
 }
+/* method ropes$RopeCharIterator$is_ok for (self: RopeCharIterator): Bool */
+short int core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__is_ok(val* self) {
+short int var /* : Bool */;
+long var1 /* : Int */;
+long var3 /* : Int */;
+long var4 /* : Int */;
+long var6 /* : Int */;
+short int var7 /* : Bool */;
+short int var9 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+short int var10 /* : Bool */;
 {
-var51 = ((val*(*)(val* self))((((long)var48&3)?class_info[((long)var48&3)]:var48->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var48); /* item on <var48:IndexedIterator[String]>*/
+{ /* Inline ropes$RopeCharIterator$pos (self) on <self:RopeCharIterator> */
+var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <self:RopeCharIterator> */
+var1 = var3;
+RET_LABEL2:(void)0;
+}
 }
 {
-{ /* Inline ropes#RopeCharIterator#str= (self,var51) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___str].val = var51; /* _str on <self:RopeCharIterator> */
-RET_LABEL52:(void)0;
+{ /* Inline ropes$RopeCharIterator$max (self) on <self:RopeCharIterator> */
+var6 = self->attrs[COLOR_core__ropes__RopeCharIterator___max].l; /* _max on <self:RopeCharIterator> */
+var4 = var6;
+RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIterator#pns= (self,0l) on <self:RopeCharIterator> */
-self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = 0l; /* _pns on <self:RopeCharIterator> */
-RET_LABEL53:(void)0;
-}
+{ /* Inline kernel$Int$<= (var1,var4) on <var1:Int> */
+/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
+/* <var4:Int> isa OTHER */
+var9 = 1; /* easy <var4:Int> isa OTHER*/
+if (unlikely(!var9)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
+fatal_exit(1);
 }
-RET_LABEL:;
+var10 = var1 <= var4;
+var7 = var10;
+goto RET_LABEL8;
+RET_LABEL8:(void)0;
 }
-/* method ropes#ReverseRopeSubstrings#iter for (self: ReverseRopeSubstrings): RopeCharIteratorPiece */
-val* core__ropes___core__ropes__ReverseRopeSubstrings___iter(val* self) {
-val* var /* : RopeCharIteratorPiece */;
-val* var1 /* : RopeCharIteratorPiece */;
-var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val; /* _iter on <self:ReverseRopeSubstrings> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 789);
-fatal_exit(1);
 }
-var = var1;
+var = var7;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#ReverseRopeSubstrings#iter= for (self: ReverseRopeSubstrings, RopeCharIteratorPiece) */
-void core__ropes___core__ropes__ReverseRopeSubstrings___iter_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = p0; /* _iter on <self:ReverseRopeSubstrings> */
-RET_LABEL:;
-}
-/* method ropes#ReverseRopeSubstrings#pos for (self: ReverseRopeSubstrings): Int */
-long core__ropes___core__ropes__ReverseRopeSubstrings___pos(val* self) {
+/* method ropes$RopeCharIterator$index for (self: RopeCharIterator): Int */
+long core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__IndexedIterator__index(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
-var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
-var = var1;
-RET_LABEL:;
-return var;
-}
-/* method ropes#ReverseRopeSubstrings#pos= for (self: ReverseRopeSubstrings, Int) */
-void core__ropes___core__ropes__ReverseRopeSubstrings___pos_61d(val* self, long p0) {
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = p0; /* _pos on <self:ReverseRopeSubstrings> */
-RET_LABEL:;
-}
-/* method ropes#ReverseRopeSubstrings#str for (self: ReverseRopeSubstrings): FlatString */
-val* core__ropes___core__ropes__ReverseRopeSubstrings___str(val* self) {
-val* var /* : FlatString */;
-val* var1 /* : FlatString */;
-var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 794);
-fatal_exit(1);
+long var3 /* : Int */;
+{
+{ /* Inline ropes$RopeCharIterator$pos (self) on <self:RopeCharIterator> */
+var3 = self->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <self:RopeCharIterator> */
+var1 = var3;
+RET_LABEL2:(void)0;
+}
 }
 var = var1;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#ReverseRopeSubstrings#str= for (self: ReverseRopeSubstrings, FlatString) */
-void core__ropes___core__ropes__ReverseRopeSubstrings___str_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = p0; /* _str on <self:ReverseRopeSubstrings> */
-RET_LABEL:;
-}
-/* method ropes#ReverseRopeSubstrings#from for (self: ReverseRopeSubstrings, Concat, Int) */
-void core__ropes___core__ropes__ReverseRopeSubstrings___from(val* self, val* p0, long p1) {
-val* var_root /* var root: Concat */;
-long var_pos /* var pos: Int */;
-val* var /* : RopeCharIteratorPiece */;
-val* var_r /* var r: RopeCharIteratorPiece */;
-val* var_rnod /* var rnod: String */;
-long var_off /* var off: Int */;
-short int var2 /* : Bool */;
+/* method ropes$RopeCharIterator$next for (self: RopeCharIterator) */
+void core__ropes___core__ropes__RopeCharIterator___core__abstract_collection__Iterator__next(val* self) {
+val* var_ /* var : RopeCharIterator */;
+long var /* : Int */;
+long var2 /* : Int */;
+long var3 /* : Int */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
-val* var3 /* : String */;
-long var4 /* : Int */;
-short int var5 /* : Bool */;
-short int var7 /* : Bool */;
-int cltype8;
-int idtype9;
 const char* var_class_name;
-short int var10 /* : Bool */;
-val* var11 /* : String */;
+long var6 /* : Int */;
+val* var_8 /* var : RopeCharIterator */;
+long var9 /* : Int */;
+long var11 /* : Int */;
 long var12 /* : Int */;
-long var13 /* : Int */;
-short int var15 /* : Bool */;
-int cltype16;
-int idtype17;
-const char* var_class_name18;
-long var19 /* : Int */;
-val* var20 /* : String */;
-val* var21 /* : RopeCharIteratorPiece */;
-val* var23 /* : String */;
-val* var24 /* : RopeCharIteratorPiece */;
-short int var25 /* : Bool */;
-int cltype26;
-int idtype27;
-const char* var_class_name28;
-long var32 /* : Int */;
+short int var14 /* : Bool */;
+int cltype15;
+int idtype16;
+const char* var_class_name17;
+long var18 /* : Int */;
+long var20 /* : Int */;
+long var22 /* : Int */;
+val* var23 /* : IndexedIterator[String] */;
+val* var25 /* : IndexedIterator[String] */;
+val* var26 /* : nullable Object */;
+long var27 /* : Int */;
+short int var28 /* : Bool */;
+short int var30 /* : Bool */;
+int cltype31;
+int idtype32;
+const char* var_class_name33;
 short int var34 /* : Bool */;
-int cltype35;
-int idtype36;
-const char* var_class_name37;
-long var38 /* : Int */;
+val* var35 /* : IndexedIterator[String] */;
+val* var37 /* : IndexedIterator[String] */;
+short int var38 /* : Bool */;
+short int var39 /* : Bool */;
+val* var40 /* : IndexedIterator[String] */;
+val* var42 /* : IndexedIterator[String] */;
+val* var43 /* : IndexedIterator[String] */;
+val* var45 /* : IndexedIterator[String] */;
+short int var46 /* : Bool */;
+short int var47 /* : Bool */;
+val* var48 /* : IndexedIterator[String] */;
+val* var50 /* : IndexedIterator[String] */;
+val* var51 /* : nullable Object */;
+var_ = self;
 {
-{ /* Inline kernel#Object#init (self) on <self:ReverseRopeSubstrings> */
+{ /* Inline ropes$RopeCharIterator$pns (var_) on <var_:RopeCharIterator> */
+var2 = var_->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <var_:RopeCharIterator> */
+var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_root = p0;
-var_pos = p1;
-var = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
-{
-((void(*)(val* self, val* p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var, var_root); /* node= on <var:RopeCharIteratorPiece>*/
-}
 {
-((void(*)(val* self, short int p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var, 0); /* ldone= on <var:RopeCharIteratorPiece>*/
+{ /* Inline kernel$Int$+ (var,1l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var5 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var5)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
+fatal_exit(1);
 }
-{
-((void(*)(val* self, short int p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var, 1); /* rdone= on <var:RopeCharIteratorPiece>*/
+var6 = var + 1l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
-{
-((void(*)(val* self, val* p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var, ((val*)NULL)); /* prev= on <var:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self))(var->class->vft[COLOR_core__kernel__Object__init]))(var); /* init on <var:RopeCharIteratorPiece>*/
-}
-var_r = var;
-var_rnod = var_root;
-var_off = var_pos;
-for(;;) {
-/* <var_rnod:String> isa Concat */
-cltype = type_core__ropes__Concat.color;
-idtype = type_core__ropes__Concat.id;
-if(cltype >= var_rnod->type->table_size) {
-var2 = 0;
-} else {
-var2 = var_rnod->type->type_table[cltype] == idtype;
+{ /* Inline ropes$RopeCharIterator$pns= (var_,var3) on <var_:RopeCharIterator> */
+var_->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = var3; /* _pns on <var_:RopeCharIterator> */
+RET_LABEL7:(void)0;
 }
-if (var2){
-var3 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 803);
-fatal_exit(1);
 }
+var_8 = self;
 {
-var4 = ((long(*)(val* self))(var3->class->vft[COLOR_core__abstract_text__Text__length]))(var3); /* length on <var3:String>*/
+{ /* Inline ropes$RopeCharIterator$pos (var_8) on <var_8:RopeCharIterator> */
+var11 = var_8->attrs[COLOR_core__ropes__RopeCharIterator___pos].l; /* _pos on <var_8:RopeCharIterator> */
+var9 = var11;
+RET_LABEL10:(void)0;
+}
 }
 {
-{ /* Inline kernel#Int#>= (var_off,var4) on <var_off:Int> */
-/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
-/* <var4:Int> isa OTHER */
-var7 = 1; /* easy <var4:Int> isa OTHER*/
-if (unlikely(!var7)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+{ /* Inline kernel$Int$+ (var9,1l) on <var9:Int> */
+/* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
+/* <1l:Int> isa OTHER */
+var14 = 1; /* easy <1l:Int> isa OTHER*/
+if (unlikely(!var14)) {
+var_class_name17 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name17);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
-var10 = var_off >= var4;
-var5 = var10;
-goto RET_LABEL6;
-RET_LABEL6:(void)0;
-}
+var18 = var9 + 1l;
+var12 = var18;
+goto RET_LABEL13;
+RET_LABEL13:(void)0;
 }
-if (var5){
-var11 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
-if (unlikely(var11 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 804);
-fatal_exit(1);
 }
 {
-var12 = ((long(*)(val* self))(var11->class->vft[COLOR_core__abstract_text__Text__length]))(var11); /* length on <var11:String>*/
+{ /* Inline ropes$RopeCharIterator$pos= (var_8,var12) on <var_8:RopeCharIterator> */
+var_8->attrs[COLOR_core__ropes__RopeCharIterator___pos].l = var12; /* _pos on <var_8:RopeCharIterator> */
+RET_LABEL19:(void)0;
+}
 }
 {
-{ /* Inline kernel#Int#- (var_off,var12) on <var_off:Int> */
-/* Covariant cast for argument 0 (i) <var12:Int> isa OTHER */
-/* <var12:Int> isa OTHER */
-var15 = 1; /* easy <var12:Int> isa OTHER*/
-if (unlikely(!var15)) {
-var_class_name18 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
+{ /* Inline ropes$RopeCharIterator$pns (self) on <self:RopeCharIterator> */
+var22 = self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l; /* _pns on <self:RopeCharIterator> */
+var20 = var22;
+RET_LABEL21:(void)0;
 }
-var19 = var_off - var12;
-var13 = var19;
-goto RET_LABEL14;
-RET_LABEL14:(void)0;
 }
+{
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var25 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var25 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var_off = var13;
-var20 = var_rnod->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_rnod:String(Concat)> */
-if (unlikely(var20 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 805);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
 fatal_exit(1);
 }
-var_rnod = var20;
-var21 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
-{
-((void(*)(val* self, val* p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var21, var_rnod); /* node= on <var21:RopeCharIteratorPiece>*/
+var23 = var25;
+RET_LABEL24:(void)0;
 }
-{
-((void(*)(val* self, short int p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var21, 0); /* ldone= on <var21:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self, short int p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var21, 1); /* rdone= on <var21:RopeCharIteratorPiece>*/
+var26 = ((val*(*)(val* self))((((long)var23&3)?class_info[((long)var23&3)]:var23->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var23); /* item on <var23:IndexedIterator[String]>*/
 }
 {
-((void(*)(val* self, val* p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var21, var_r); /* prev= on <var21:RopeCharIteratorPiece>*/
+var27 = ((long(*)(val* self))(var26->class->vft[COLOR_core__abstract_text__Text__length]))(var26); /* length on <var26:nullable Object(String)>*/
 }
 {
-((void(*)(val* self))(var21->class->vft[COLOR_core__kernel__Object__init]))(var21); /* init on <var21:RopeCharIteratorPiece>*/
+{ /* Inline kernel$Int$< (var20,var27) on <var20:Int> */
+/* Covariant cast for argument 0 (i) <var27:Int> isa OTHER */
+/* <var27:Int> isa OTHER */
+var30 = 1; /* easy <var27:Int> isa OTHER*/
+if (unlikely(!var30)) {
+var_class_name33 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name33);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
+fatal_exit(1);
 }
-var_r = var21;
-} else {
-{
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
-var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_r:RopeCharIteratorPiece> */
-RET_LABEL22:(void)0;
+var34 = var20 < var27;
+var28 = var34;
+goto RET_LABEL29;
+RET_LABEL29:(void)0;
 }
 }
-var23 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
-if (unlikely(var23 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 809);
-fatal_exit(1);
+if (var28){
+goto RET_LABEL;
+} else {
 }
-var_rnod = var23;
-var24 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
 {
-((void(*)(val* self, val* p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var24, var_rnod); /* node= on <var24:RopeCharIteratorPiece>*/
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var37 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var37 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-((void(*)(val* self, short int p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var24, 0); /* ldone= on <var24:RopeCharIteratorPiece>*/
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
+fatal_exit(1);
 }
-{
-((void(*)(val* self, short int p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var24, 1); /* rdone= on <var24:RopeCharIteratorPiece>*/
+var35 = var37;
+RET_LABEL36:(void)0;
 }
-{
-((void(*)(val* self, val* p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var24, var_r); /* prev= on <var24:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self))(var24->class->vft[COLOR_core__kernel__Object__init]))(var24); /* init on <var24:RopeCharIteratorPiece>*/
-}
-var_r = var24;
+var38 = ((short int(*)(val* self))((((long)var35&3)?class_info[((long)var35&3)]:var35->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var35); /* is_ok on <var35:IndexedIterator[String]>*/
 }
+var39 = !var38;
+if (var39){
+goto RET_LABEL;
 } else {
-/* <var_rnod:String> isa FlatString */
-cltype26 = type_core__FlatString.color;
-idtype27 = type_core__FlatString.id;
-if(cltype26 >= var_rnod->type->table_size) {
-var25 = 0;
-} else {
-var25 = var_rnod->type->type_table[cltype26] == idtype27;
 }
-if (unlikely(!var25)) {
-var_class_name28 = var_rnod == NULL ? "null" : var_rnod->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name28);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 813);
+{
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var42 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var42 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
 fatal_exit(1);
 }
-{
-{ /* Inline ropes#ReverseRopeSubstrings#str= (self,var_rnod) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = var_rnod; /* _str on <self:ReverseRopeSubstrings> */
-RET_LABEL29:(void)0;
+var40 = var42;
+RET_LABEL41:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
-var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_r:RopeCharIteratorPiece> */
-RET_LABEL30:(void)0;
+((void(*)(val* self))((((long)var40&3)?class_info[((long)var40&3)]:var40->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var40); /* next on <var40:IndexedIterator[String]>*/
+}
+{
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var45 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var45 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
+fatal_exit(1);
+}
+var43 = var45;
+RET_LABEL44:(void)0;
 }
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#iter= (self,var_r) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = var_r; /* _iter on <self:ReverseRopeSubstrings> */
-RET_LABEL31:(void)0;
+var46 = ((short int(*)(val* self))((((long)var43&3)?class_info[((long)var43&3)]:var43->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var43); /* is_ok on <var43:IndexedIterator[String]>*/
 }
+var47 = !var46;
+if (var47){
+goto RET_LABEL;
+} else {
 }
 {
-{ /* Inline kernel#Int#- (var_pos,var_off) on <var_pos:Int> */
-/* Covariant cast for argument 0 (i) <var_off:Int> isa OTHER */
-/* <var_off:Int> isa OTHER */
-var34 = 1; /* easy <var_off:Int> isa OTHER*/
-if (unlikely(!var34)) {
-var_class_name37 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+{ /* Inline ropes$RopeCharIterator$subs (self) on <self:RopeCharIterator> */
+var50 = self->attrs[COLOR_core__ropes__RopeCharIterator___subs].val; /* _subs on <self:RopeCharIterator> */
+if (unlikely(var50 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _subs");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 462);
 fatal_exit(1);
 }
-var38 = var_pos - var_off;
-var32 = var38;
-goto RET_LABEL33;
-RET_LABEL33:(void)0;
+var48 = var50;
+RET_LABEL49:(void)0;
 }
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#pos= (self,var32) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var32; /* _pos on <self:ReverseRopeSubstrings> */
-RET_LABEL39:(void)0;
+var51 = ((val*(*)(val* self))((((long)var48&3)?class_info[((long)var48&3)]:var48->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var48); /* item on <var48:IndexedIterator[String]>*/
 }
+{
+{ /* Inline ropes$RopeCharIterator$str= (self,var51) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___str].val = var51; /* _str on <self:RopeCharIterator> */
+RET_LABEL52:(void)0;
 }
-goto BREAK_label;
 }
+{
+{ /* Inline ropes$RopeCharIterator$pns= (self,0l) on <self:RopeCharIterator> */
+self->attrs[COLOR_core__ropes__RopeCharIterator___pns].l = 0l; /* _pns on <self:RopeCharIterator> */
+RET_LABEL53:(void)0;
 }
-BREAK_label: (void)0;
-RET_LABEL:;
 }
-/* method ropes#ReverseRopeSubstrings#item for (self: ReverseRopeSubstrings): FlatString */
-val* core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__item(val* self) {
-val* var /* : FlatString */;
-val* var1 /* : FlatString */;
-val* var3 /* : FlatString */;
-{
-{ /* Inline ropes#ReverseRopeSubstrings#str (self) on <self:ReverseRopeSubstrings> */
-var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 794);
-fatal_exit(1);
+RET_LABEL:;
 }
-var1 = var3;
-RET_LABEL2:(void)0;
+/* method ropes$ReverseRopeSubstrings$iter for (self: ReverseRopeSubstrings): RopeCharIteratorPiece */
+val* core__ropes___core__ropes__ReverseRopeSubstrings___iter(val* self) {
+val* var /* : RopeCharIteratorPiece */;
+val* var1 /* : RopeCharIteratorPiece */;
+var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val; /* _iter on <self:ReverseRopeSubstrings> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 499);
+fatal_exit(1);
 }
 var = var1;
-goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#ReverseRopeSubstrings#index for (self: ReverseRopeSubstrings): Int */
-long core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__IndexedIterator__index(val* self) {
+/* method ropes$ReverseRopeSubstrings$iter= for (self: ReverseRopeSubstrings, RopeCharIteratorPiece) */
+void core__ropes___core__ropes__ReverseRopeSubstrings___iter_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = p0; /* _iter on <self:ReverseRopeSubstrings> */
+RET_LABEL:;
+}
+/* method ropes$ReverseRopeSubstrings$pos for (self: ReverseRopeSubstrings): Int */
+long core__ropes___core__ropes__ReverseRopeSubstrings___pos(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
-long var3 /* : Int */;
-{
-{ /* Inline ropes#ReverseRopeSubstrings#pos (self) on <self:ReverseRopeSubstrings> */
-var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
-var1 = var3;
-RET_LABEL2:(void)0;
-}
-}
+var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
 var = var1;
-goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#ReverseRopeSubstrings#is_ok for (self: ReverseRopeSubstrings): Bool */
-short int core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__is_ok(val* self) {
-short int var /* : Bool */;
-long var1 /* : Int */;
-long var3 /* : Int */;
-short int var4 /* : Bool */;
-short int var6 /* : Bool */;
-int cltype;
-int idtype;
-const char* var_class_name;
-short int var7 /* : Bool */;
-{
-{ /* Inline ropes#ReverseRopeSubstrings#pos (self) on <self:ReverseRopeSubstrings> */
-var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
-var1 = var3;
-RET_LABEL2:(void)0;
+/* method ropes$ReverseRopeSubstrings$pos= for (self: ReverseRopeSubstrings, Int) */
+void core__ropes___core__ropes__ReverseRopeSubstrings___pos_61d(val* self, long p0) {
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = p0; /* _pos on <self:ReverseRopeSubstrings> */
+RET_LABEL:;
 }
+/* method ropes$ReverseRopeSubstrings$str for (self: ReverseRopeSubstrings): FlatString */
+val* core__ropes___core__ropes__ReverseRopeSubstrings___str(val* self) {
+val* var /* : FlatString */;
+val* var1 /* : FlatString */;
+var1 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
+if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline kernel#Int#>= (var1,0l) on <var1:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var6 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var6)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 504);
 fatal_exit(1);
 }
-var7 = var1 >= 0l;
-var4 = var7;
-goto RET_LABEL5;
-RET_LABEL5:(void)0;
-}
-}
-var = var4;
-goto RET_LABEL;
+var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#ReverseRopeSubstrings#next for (self: ReverseRopeSubstrings) */
-void core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__next(val* self) {
-long var /* : Int */;
-long var2 /* : Int */;
-short int var3 /* : Bool */;
-short int var5 /* : Bool */;
+/* method ropes$ReverseRopeSubstrings$str= for (self: ReverseRopeSubstrings, FlatString) */
+void core__ropes___core__ropes__ReverseRopeSubstrings___str_61d(val* self, val* p0) {
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = p0; /* _str on <self:ReverseRopeSubstrings> */
+RET_LABEL:;
+}
+/* method ropes$ReverseRopeSubstrings$from for (self: ReverseRopeSubstrings, Concat, Int) */
+void core__ropes___core__ropes__ReverseRopeSubstrings___from(val* self, val* p0, long p1) {
+val* var_root /* var root: Concat */;
+long var_pos /* var pos: Int */;
+val* var /* : RopeCharIteratorPiece */;
+val* var_r /* var r: RopeCharIteratorPiece */;
+val* var_rnod /* var rnod: String */;
+long var_off /* var off: Int */;
+short int var2 /* : Bool */;
 int cltype;
 int idtype;
+val* var3 /* : String */;
+long var4 /* : Int */;
+short int var5 /* : Bool */;
+short int var7 /* : Bool */;
+int cltype8;
+int idtype9;
 const char* var_class_name;
-short int var6 /* : Bool */;
-val* var7 /* : RopeCharIteratorPiece */;
-val* var9 /* : RopeCharIteratorPiece */;
-val* var10 /* : nullable RopeCharIteratorPiece */;
-val* var12 /* : nullable RopeCharIteratorPiece */;
-val* var_curr /* var curr: nullable RopeCharIteratorPiece */;
-val* var13 /* : String */;
-val* var15 /* : String */;
-val* var_currit /* var currit: String */;
-short int var16 /* : Bool */;
-short int var17 /* : Bool */;
-val* var_other /* var other: nullable Object */;
-short int var19 /* : Bool */;
-short int var20 /* : Bool */;
-val* var21 /* : String */;
+short int var10 /* : Bool */;
+val* var11 /* : String */;
+long var12 /* : Int */;
+long var13 /* : Int */;
+short int var15 /* : Bool */;
+int cltype16;
+int idtype17;
+const char* var_class_name18;
+long var19 /* : Int */;
+val* var20 /* : String */;
+val* var21 /* : RopeCharIteratorPiece */;
 val* var23 /* : String */;
-short int var24 /* : Bool */;
-int cltype25;
-int idtype26;
-short int var27 /* : Bool */;
-short int var28 /* : Bool */;
-int cltype29;
-int idtype30;
-const char* var_class_name31;
-val* var_ /* var : ReverseRopeSubstrings */;
-long var33 /* : Int */;
-long var35 /* : Int */;
-val* var36 /* : FlatString */;
-val* var38 /* : FlatString */;
-long var39 /* : Int */;
-long var41 /* : Int */;
-long var42 /* : Int */;
-short int var44 /* : Bool */;
-int cltype45;
-int idtype46;
-const char* var_class_name47;
-long var48 /* : Int */;
-short int var51 /* : Bool */;
-short int var53 /* : Bool */;
-short int var54 /* : Bool */;
-val* var56 /* : RopeCharIteratorPiece */;
-val* var57 /* : String */;
-short int var58 /* : Bool */;
-short int var60 /* : Bool */;
-short int var61 /* : Bool */;
-val* var63 /* : RopeCharIteratorPiece */;
-val* var64 /* : String */;
-val* var65 /* : nullable RopeCharIteratorPiece */;
-val* var67 /* : nullable RopeCharIteratorPiece */;
-long var69 /* : Int */;
-long var71 /* : Int */;
-{
-{ /* Inline ropes#ReverseRopeSubstrings#pos (self) on <self:ReverseRopeSubstrings> */
-var2 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
-var = var2;
-RET_LABEL1:(void)0;
-}
-}
-{
-{ /* Inline kernel#Int#< (var,0l) on <var:Int> */
-/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
-/* <0l:Int> isa OTHER */
-var5 = 1; /* easy <0l:Int> isa OTHER*/
-if (unlikely(!var5)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
-fatal_exit(1);
-}
-var6 = var < 0l;
-var3 = var6;
-goto RET_LABEL4;
-RET_LABEL4:(void)0;
-}
-}
-if (var3){
-goto RET_LABEL;
-} else {
-}
-{
-{ /* Inline ropes#ReverseRopeSubstrings#iter (self) on <self:ReverseRopeSubstrings> */
-var9 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val; /* _iter on <self:ReverseRopeSubstrings> */
-if (unlikely(var9 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 789);
-fatal_exit(1);
-}
-var7 = var9;
-RET_LABEL8:(void)0;
+val* var24 /* : RopeCharIteratorPiece */;
+short int var25 /* : Bool */;
+int cltype26;
+int idtype27;
+const char* var_class_name28;
+long var32 /* : Int */;
+short int var34 /* : Bool */;
+int cltype35;
+int idtype36;
+const char* var_class_name37;
+long var38 /* : Int */;
+{
+{ /* Inline kernel$Object$init (self) on <self:ReverseRopeSubstrings> */
+RET_LABEL1:(void)0;
 }
 }
+var_root = p0;
+var_pos = p1;
+var = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
 {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var7) on <var7:RopeCharIteratorPiece> */
-var12 = var7->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var7:RopeCharIteratorPiece> */
-var10 = var12;
-RET_LABEL11:(void)0;
-}
+((void(*)(val* self, val* p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var, var_root); /* node= on <var:RopeCharIteratorPiece>*/
 }
-var_curr = var10;
-if (var_curr == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 831);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#node (var_curr) on <var_curr:nullable RopeCharIteratorPiece> */
-if (unlikely(var_curr == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
-fatal_exit(1);
+{
+((void(*)(val* self, short int p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var, 0); /* ldone= on <var:RopeCharIteratorPiece>*/
 }
-var15 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_curr:nullable RopeCharIteratorPiece> */
-if (unlikely(var15 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
-fatal_exit(1);
+{
+((void(*)(val* self, short int p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var, 1); /* rdone= on <var:RopeCharIteratorPiece>*/
 }
-var13 = var15;
-RET_LABEL14:(void)0;
+{
+((void(*)(val* self, val* p0))(var->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var, ((val*)NULL)); /* prev= on <var:RopeCharIteratorPiece>*/
 }
+{
+((void(*)(val* self))(var->class->vft[COLOR_core__kernel__Object__init]))(var); /* init on <var:RopeCharIteratorPiece>*/
 }
-var_currit = var13;
+var_r = var;
+var_rnod = var_root;
+var_off = var_pos;
 for(;;) {
-if (var_curr == NULL) {
-var16 = 0; /* is null */
+/* <var_rnod:String> isa Concat */
+cltype = type_core__ropes__Concat.color;
+idtype = type_core__ropes__Concat.id;
+if(cltype >= var_rnod->type->table_size) {
+var2 = 0;
 } else {
-var16 = 1; /* arg is null and recv is not */
+var2 = var_rnod->type->type_table[cltype] == idtype;
 }
-if (0) {
-{ /* Inline kernel#Object#!= (var_curr,((val*)NULL)) on <var_curr:nullable RopeCharIteratorPiece> */
-var_other = ((val*)NULL);
-{
-var19 = ((short int(*)(val* self, val* p0))(var_curr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_curr, var_other); /* == on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)>*/
+if (var2){
+var3 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var20 = !var19;
-var17 = var20;
-goto RET_LABEL18;
-RET_LABEL18:(void)0;
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 513);
+fatal_exit(1);
 }
-var16 = var17;
+{
+var4 = ((long(*)(val* self))(var3->class->vft[COLOR_core__abstract_text__Text__length]))(var3); /* length on <var3:String>*/
 }
-if (var16){
 {
-{ /* Inline ropes#RopeCharIteratorPiece#node (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var23 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-if (unlikely(var23 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+{ /* Inline kernel$Int$>= (var_off,var4) on <var_off:Int> */
+/* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
+/* <var4:Int> isa OTHER */
+var7 = 1; /* easy <var4:Int> isa OTHER*/
+if (unlikely(!var7)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var21 = var23;
-RET_LABEL22:(void)0;
-}
+var10 = var_off >= var4;
+var5 = var10;
+goto RET_LABEL6;
+RET_LABEL6:(void)0;
 }
-var_currit = var21;
-/* <var_currit:String> isa Concat */
-cltype25 = type_core__ropes__Concat.color;
-idtype26 = type_core__ropes__Concat.id;
-if(cltype25 >= var_currit->type->table_size) {
-var24 = 0;
-} else {
-var24 = var_currit->type->type_table[cltype25] == idtype26;
 }
-var27 = !var24;
-if (var27){
-/* <var_currit:String> isa FlatString */
-cltype29 = type_core__FlatString.color;
-idtype30 = type_core__FlatString.id;
-if(cltype29 >= var_currit->type->table_size) {
-var28 = 0;
-} else {
-var28 = var_currit->type->type_table[cltype29] == idtype30;
+if (var5){
+var11 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
+if (unlikely(var11 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-if (unlikely(!var28)) {
-var_class_name31 = var_currit == NULL ? "null" : var_currit->type->name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name31);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 835);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 514);
 fatal_exit(1);
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#str= (self,var_currit) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = var_currit; /* _str on <self:ReverseRopeSubstrings> */
-RET_LABEL32:(void)0;
-}
-}
-var_ = self;
-{
-{ /* Inline ropes#ReverseRopeSubstrings#pos (var_) on <var_:ReverseRopeSubstrings> */
-var35 = var_->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <var_:ReverseRopeSubstrings> */
-var33 = var35;
-RET_LABEL34:(void)0;
-}
+var12 = ((long(*)(val* self))(var11->class->vft[COLOR_core__abstract_text__Text__length]))(var11); /* length on <var11:String>*/
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#str (self) on <self:ReverseRopeSubstrings> */
-var38 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
-if (unlikely(var38 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 794);
+{ /* Inline kernel$Int$- (var_off,var12) on <var_off:Int> */
+/* Covariant cast for argument 0 (i) <var12:Int> isa OTHER */
+/* <var12:Int> isa OTHER */
+var15 = 1; /* easy <var12:Int> isa OTHER*/
+if (unlikely(!var15)) {
+var_class_name18 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name18);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var36 = var38;
-RET_LABEL37:(void)0;
-}
+var19 = var_off - var12;
+var13 = var19;
+goto RET_LABEL14;
+RET_LABEL14:(void)0;
 }
-{
-{ /* Inline abstract_text#FlatText#length (var36) on <var36:FlatString> */
-var41 = var36->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var36:FlatString> */
-var39 = var41;
-RET_LABEL40:(void)0;
 }
+var_off = var13;
+var20 = var_rnod->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_rnod:String(Concat)> */
+if (unlikely(var20 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-{
-{ /* Inline kernel#Int#- (var33,var39) on <var33:Int> */
-/* Covariant cast for argument 0 (i) <var39:Int> isa OTHER */
-/* <var39:Int> isa OTHER */
-var44 = 1; /* easy <var39:Int> isa OTHER*/
-if (unlikely(!var44)) {
-var_class_name47 = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 515);
 fatal_exit(1);
 }
-var48 = var33 - var39;
-var42 = var48;
-goto RET_LABEL43;
-RET_LABEL43:(void)0;
-}
+var_rnod = var20;
+var21 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
+{
+((void(*)(val* self, val* p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var21, var_rnod); /* node= on <var21:RopeCharIteratorPiece>*/
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#pos= (var_,var42) on <var_:ReverseRopeSubstrings> */
-var_->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var42; /* _pos on <var_:ReverseRopeSubstrings> */
-RET_LABEL49:(void)0;
+((void(*)(val* self, short int p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var21, 0); /* ldone= on <var21:RopeCharIteratorPiece>*/
 }
+{
+((void(*)(val* self, short int p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var21, 1); /* rdone= on <var21:RopeCharIteratorPiece>*/
 }
 {
-{ /* Inline ropes#ReverseRopeSubstrings#iter= (self,var_curr) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = var_curr; /* _iter on <self:ReverseRopeSubstrings> */
-RET_LABEL50:(void)0;
+((void(*)(val* self, val* p0))(var21->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var21, var_r); /* prev= on <var21:RopeCharIteratorPiece>*/
 }
+{
+((void(*)(val* self))(var21->class->vft[COLOR_core__kernel__Object__init]))(var21); /* init on <var21:RopeCharIteratorPiece>*/
 }
-goto RET_LABEL;
+var_r = var21;
 } else {
-}
 {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var53 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var51 = var53;
-RET_LABEL52:(void)0;
-}
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
+var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_r:RopeCharIteratorPiece> */
+RET_LABEL22:(void)0;
 }
-var54 = !var51;
-if (var54){
-{
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_curr,1) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-RET_LABEL55:(void)0;
 }
+var23 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
+if (unlikely(var23 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
-var56 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
-var57 = var_currit->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_currit:String(Concat)> */
-if (unlikely(var57 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 842);
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 519);
 fatal_exit(1);
 }
+var_rnod = var23;
+var24 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
 {
-((void(*)(val* self, val* p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var56, var57); /* node= on <var56:RopeCharIteratorPiece>*/
+((void(*)(val* self, val* p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var24, var_rnod); /* node= on <var24:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self, short int p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var56, 0); /* ldone= on <var56:RopeCharIteratorPiece>*/
+((void(*)(val* self, short int p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var24, 0); /* ldone= on <var24:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self, short int p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var56, 0); /* rdone= on <var56:RopeCharIteratorPiece>*/
+((void(*)(val* self, short int p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var24, 1); /* rdone= on <var24:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self, val* p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var56, var_curr); /* prev= on <var56:RopeCharIteratorPiece>*/
+((void(*)(val* self, val* p0))(var24->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var24, var_r); /* prev= on <var24:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self))(var56->class->vft[COLOR_core__kernel__Object__init]))(var56); /* init on <var56:RopeCharIteratorPiece>*/
+((void(*)(val* self))(var24->class->vft[COLOR_core__kernel__Object__init]))(var24); /* init on <var24:RopeCharIteratorPiece>*/
 }
-var_curr = var56;
-goto BREAK_label;
-} else {
+var_r = var24;
 }
-{
-{ /* Inline ropes#RopeCharIteratorPiece#ldone (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var60 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var58 = var60;
-RET_LABEL59:(void)0;
+} else {
+/* <var_rnod:String> isa FlatString */
+cltype26 = type_core__FlatString.color;
+idtype27 = type_core__FlatString.id;
+if(cltype26 >= var_rnod->type->table_size) {
+var25 = 0;
+} else {
+var25 = var_rnod->type->type_table[cltype26] == idtype27;
 }
+if (unlikely(!var25)) {
+var_class_name28 = var_rnod == NULL ? "null" : var_rnod->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name28);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 523);
+fatal_exit(1);
 }
-var61 = !var58;
-if (var61){
 {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_curr,1) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-RET_LABEL62:(void)0;
-}
+{ /* Inline ropes$ReverseRopeSubstrings$str= (self,var_rnod) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = var_rnod; /* _str on <self:ReverseRopeSubstrings> */
+RET_LABEL29:(void)0;
 }
-var63 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
-var64 = var_currit->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_currit:String(Concat)> */
-if (unlikely(var64 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 847);
-fatal_exit(1);
 }
 {
-((void(*)(val* self, val* p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var63, var64); /* node= on <var63:RopeCharIteratorPiece>*/
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
+var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_r:RopeCharIteratorPiece> */
+RET_LABEL30:(void)0;
 }
-{
-((void(*)(val* self, short int p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var63, 0); /* ldone= on <var63:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self, short int p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var63, 0); /* rdone= on <var63:RopeCharIteratorPiece>*/
+{ /* Inline ropes$ReverseRopeSubstrings$iter= (self,var_r) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = var_r; /* _iter on <self:ReverseRopeSubstrings> */
+RET_LABEL31:(void)0;
 }
-{
-((void(*)(val* self, val* p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var63, var_curr); /* prev= on <var63:RopeCharIteratorPiece>*/
 }
 {
-((void(*)(val* self))(var63->class->vft[COLOR_core__kernel__Object__init]))(var63); /* init on <var63:RopeCharIteratorPiece>*/
+{ /* Inline kernel$Int$- (var_pos,var_off) on <var_pos:Int> */
+/* Covariant cast for argument 0 (i) <var_off:Int> isa OTHER */
+/* <var_off:Int> isa OTHER */
+var34 = 1; /* easy <var_off:Int> isa OTHER*/
+if (unlikely(!var34)) {
+var_class_name37 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name37);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+fatal_exit(1);
+}
+var38 = var_pos - var_off;
+var32 = var38;
+goto RET_LABEL33;
+RET_LABEL33:(void)0;
 }
-var_curr = var63;
-goto BREAK_label;
-} else {
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var67 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
-var65 = var67;
-RET_LABEL66:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$pos= (self,var32) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var32; /* _pos on <self:ReverseRopeSubstrings> */
+RET_LABEL39:(void)0;
 }
 }
-var_curr = var65;
-} else {
-goto BREAK_label68;
+goto BREAK_label;
+}
 }
 BREAK_label: (void)0;
+RET_LABEL:;
 }
-BREAK_label68: (void)0;
+/* method ropes$ReverseRopeSubstrings$item for (self: ReverseRopeSubstrings): FlatString */
+val* core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__item(val* self) {
+val* var /* : FlatString */;
+val* var1 /* : FlatString */;
+val* var3 /* : FlatString */;
 {
-{ /* Inline kernel#Int#unary - (1l) on <1l:Int> */
-var71 = -1l;
-var69 = var71;
-goto RET_LABEL70;
-RET_LABEL70:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$str (self) on <self:ReverseRopeSubstrings> */
+var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
+if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 504);
+fatal_exit(1);
 }
-{
-{ /* Inline ropes#ReverseRopeSubstrings#pos= (self,var69) on <self:ReverseRopeSubstrings> */
-self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var69; /* _pos on <self:ReverseRopeSubstrings> */
-RET_LABEL72:(void)0;
+var1 = var3;
+RET_LABEL2:(void)0;
 }
 }
+var = var1;
+goto RET_LABEL;
 RET_LABEL:;
+return var;
+}
+/* method ropes$ReverseRopeSubstrings$index for (self: ReverseRopeSubstrings): Int */
+long core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__IndexedIterator__index(val* self) {
+long var /* : Int */;
+long var1 /* : Int */;
+long var3 /* : Int */;
+{
+{ /* Inline ropes$ReverseRopeSubstrings$pos (self) on <self:ReverseRopeSubstrings> */
+var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-/* method ropes#RopeBufSubstringIterator#iter for (self: RopeBufSubstringIterator): Iterator[FlatText] */
-val* core__ropes___core__ropes__RopeBufSubstringIterator___iter(val* self) {
-val* var /* : Iterator[FlatText] */;
-val* var1 /* : Iterator[FlatText] */;
-var1 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
-fatal_exit(1);
 }
 var = var1;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeBufSubstringIterator#iter= for (self: RopeBufSubstringIterator, Iterator[FlatText]) */
-void core__ropes___core__ropes__RopeBufSubstringIterator___iter_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val = p0; /* _iter on <self:RopeBufSubstringIterator> */
-RET_LABEL:;
+/* method ropes$ReverseRopeSubstrings$is_ok for (self: ReverseRopeSubstrings): Bool */
+short int core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__is_ok(val* self) {
+short int var /* : Bool */;
+long var1 /* : Int */;
+long var3 /* : Int */;
+short int var4 /* : Bool */;
+short int var6 /* : Bool */;
+int cltype;
+int idtype;
+const char* var_class_name;
+short int var7 /* : Bool */;
+{
+{ /* Inline ropes$ReverseRopeSubstrings$pos (self) on <self:ReverseRopeSubstrings> */
+var3 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
+var1 = var3;
+RET_LABEL2:(void)0;
 }
-/* method ropes#RopeBufSubstringIterator#nsstr for (self: RopeBufSubstringIterator): FlatString */
-val* core__ropes___core__ropes__RopeBufSubstringIterator___nsstr(val* self) {
-val* var /* : FlatString */;
-val* var1 /* : FlatString */;
-var1 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr].val; /* _nsstr on <self:RopeBufSubstringIterator> */
-if (unlikely(var1 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _nsstr");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 861);
+}
+{
+{ /* Inline kernel$Int$>= (var1,0l) on <var1:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var6 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var6)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
-var = var1;
-RET_LABEL:;
-return var;
+var7 = var1 >= 0l;
+var4 = var7;
+goto RET_LABEL5;
+RET_LABEL5:(void)0;
 }
-/* method ropes#RopeBufSubstringIterator#nsstr= for (self: RopeBufSubstringIterator, FlatString) */
-void core__ropes___core__ropes__RopeBufSubstringIterator___nsstr_61d(val* self, val* p0) {
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr].val = p0; /* _nsstr on <self:RopeBufSubstringIterator> */
-RET_LABEL:;
 }
-/* method ropes#RopeBufSubstringIterator#nsstr_done for (self: RopeBufSubstringIterator): Bool */
-short int core__ropes___core__ropes__RopeBufSubstringIterator___nsstr_done(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-var1 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr_done].s; /* _nsstr_done on <self:RopeBufSubstringIterator> */
-var = var1;
+var = var4;
+goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeBufSubstringIterator#nsstr_done= for (self: RopeBufSubstringIterator, Bool) */
-void core__ropes___core__ropes__RopeBufSubstringIterator___nsstr_done_61d(val* self, short int p0) {
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr_done].s = p0; /* _nsstr_done on <self:RopeBufSubstringIterator> */
-RET_LABEL:;
-}
-/* method ropes#RopeBufSubstringIterator#from for (self: RopeBufSubstringIterator, RopeBuffer) */
-void core__ropes___core__ropes__RopeBufSubstringIterator___from(val* self, val* p0) {
-val* var_str /* var str: RopeBuffer */;
-val* var /* : String */;
-val* var3 /* : String */;
-val* var4 /* : Iterator[FlatText] */;
-val* var6 /* : FlatString */;
-char* var7 /* : NativeString */;
-char* var9 /* : NativeString */;
-long var10 /* : Int */;
-long var12 /* : Int */;
-long var13 /* : Int */;
-long var15 /* : Int */;
-long var16 /* : Int */;
-short int var18 /* : Bool */;
+/* method ropes$ReverseRopeSubstrings$next for (self: ReverseRopeSubstrings) */
+void core__ropes___core__ropes__ReverseRopeSubstrings___core__abstract_collection__Iterator__next(val* self) {
+long var /* : Int */;
+long var2 /* : Int */;
+short int var3 /* : Bool */;
+short int var5 /* : Bool */;
 int cltype;
 int idtype;
 const char* var_class_name;
-long var19 /* : Int */;
-long var20 /* : Int */;
-long var22 /* : Int */;
-long var24 /* : Int */;
-short int var25 /* : Bool */;
+short int var6 /* : Bool */;
+val* var7 /* : RopeCharIteratorPiece */;
+val* var9 /* : RopeCharIteratorPiece */;
+val* var10 /* : nullable RopeCharIteratorPiece */;
+val* var12 /* : nullable RopeCharIteratorPiece */;
+val* var_curr /* var curr: nullable RopeCharIteratorPiece */;
+val* var13 /* : String */;
+val* var15 /* : String */;
+val* var_currit /* var currit: String */;
+short int var16 /* : Bool */;
+short int var17 /* : Bool */;
+val* var_other /* var other: nullable Object */;
+short int var19 /* : Bool */;
+short int var20 /* : Bool */;
+val* var21 /* : String */;
+val* var23 /* : String */;
+short int var24 /* : Bool */;
+int cltype25;
+int idtype26;
 short int var27 /* : Bool */;
+short int var28 /* : Bool */;
+int cltype29;
+int idtype30;
+const char* var_class_name31;
+val* var_ /* var : ReverseRopeSubstrings */;
+long var33 /* : Int */;
+long var35 /* : Int */;
+val* var36 /* : FlatString */;
+val* var38 /* : FlatString */;
+long var39 /* : Int */;
+long var41 /* : Int */;
+long var42 /* : Int */;
+short int var44 /* : Bool */;
+int cltype45;
+int idtype46;
+const char* var_class_name47;
+long var48 /* : Int */;
+short int var51 /* : Bool */;
+short int var53 /* : Bool */;
+short int var54 /* : Bool */;
+val* var56 /* : RopeCharIteratorPiece */;
+val* var57 /* : String */;
+short int var58 /* : Bool */;
+short int var60 /* : Bool */;
+short int var61 /* : Bool */;
+val* var63 /* : RopeCharIteratorPiece */;
+val* var64 /* : String */;
+val* var65 /* : nullable RopeCharIteratorPiece */;
+val* var67 /* : nullable RopeCharIteratorPiece */;
+long var69 /* : Int */;
+long var71 /* : Int */;
 {
-{ /* Inline kernel#Object#init (self) on <self:RopeBufSubstringIterator> */
+{ /* Inline ropes$ReverseRopeSubstrings$pos (self) on <self:ReverseRopeSubstrings> */
+var2 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <self:ReverseRopeSubstrings> */
+var = var2;
 RET_LABEL1:(void)0;
 }
 }
-var_str = p0;
 {
-{ /* Inline ropes#RopeBuffer#str (var_str) on <var_str:RopeBuffer> */
-var3 = var_str->attrs[COLOR_core__ropes__RopeBuffer___str].val; /* _str on <var_str:RopeBuffer> */
-if (unlikely(var3 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 310);
+{ /* Inline kernel$Int$< (var,0l) on <var:Int> */
+/* Covariant cast for argument 0 (i) <0l:Int> isa OTHER */
+/* <0l:Int> isa OTHER */
+var5 = 1; /* easy <0l:Int> isa OTHER*/
+if (unlikely(!var5)) {
+var_class_name = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 725);
 fatal_exit(1);
 }
-var = var3;
-RET_LABEL2:(void)0;
+var6 = var < 0l;
+var3 = var6;
+goto RET_LABEL4;
+RET_LABEL4:(void)0;
 }
 }
-{
-var4 = ((val*(*)(val* self))(var->class->vft[COLOR_core__abstract_text__Text__substrings]))(var); /* substrings on <var:String>*/
+if (var3){
+goto RET_LABEL;
+} else {
 }
 {
-{ /* Inline ropes#RopeBufSubstringIterator#iter= (self,var4) on <self:RopeBufSubstringIterator> */
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val = var4; /* _iter on <self:RopeBufSubstringIterator> */
-RET_LABEL5:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$iter (self) on <self:ReverseRopeSubstrings> */
+var9 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val; /* _iter on <self:ReverseRopeSubstrings> */
+if (unlikely(var9 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 499);
+fatal_exit(1);
 }
-var6 = NEW_core__FlatString(&type_core__FlatString);
-{
-{ /* Inline ropes#RopeBuffer#ns (var_str) on <var_str:RopeBuffer> */
-var9 = var_str->attrs[COLOR_core__ropes__RopeBuffer___ns].str; /* _ns on <var_str:RopeBuffer> */
 var7 = var9;
 RET_LABEL8:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeBuffer#rpos (var_str) on <var_str:RopeBuffer> */
-var12 = var_str->attrs[COLOR_core__ropes__RopeBuffer___rpos].l; /* _rpos on <var_str:RopeBuffer> */
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var7) on <var7:RopeCharIteratorPiece> */
+var12 = var7->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var7:RopeCharIteratorPiece> */
 var10 = var12;
 RET_LABEL11:(void)0;
 }
 }
+var_curr = var10;
+if (unlikely(var_curr == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 541);
+fatal_exit(1);
+}
 {
-{ /* Inline ropes#RopeBuffer#dumped (var_str) on <var_str:RopeBuffer> */
-var15 = var_str->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <var_str:RopeBuffer> */
+{ /* Inline ropes$RopeCharIteratorPiece$node (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var15 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+if (unlikely(var15 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
+fatal_exit(1);
+}
 var13 = var15;
 RET_LABEL14:(void)0;
 }
 }
+var_currit = var13;
+for(;;) {
+if (var_curr == NULL) {
+var16 = 0; /* is null */
+} else {
+var16 = 1; /* arg is null and recv is not */
+}
+if (0) {
+{ /* Inline kernel$Object$!= (var_curr,((val*)NULL)) on <var_curr:nullable RopeCharIteratorPiece> */
+var_other = ((val*)NULL);
 {
-{ /* Inline kernel#Int#- (var10,var13) on <var10:Int> */
-/* Covariant cast for argument 0 (i) <var13:Int> isa OTHER */
-/* <var13:Int> isa OTHER */
-var18 = 1; /* easy <var13:Int> isa OTHER*/
-if (unlikely(!var18)) {
-var_class_name = type_core__Int.name;
-PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
-fatal_exit(1);
+var19 = ((short int(*)(val* self, val* p0))(var_curr->class->vft[COLOR_core__kernel__Object___61d_61d]))(var_curr, var_other); /* == on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)>*/
 }
-var19 = var10 - var13;
-var16 = var19;
-goto RET_LABEL17;
-RET_LABEL17:(void)0;
+var20 = !var19;
+var17 = var20;
+goto RET_LABEL18;
+RET_LABEL18:(void)0;
 }
+var16 = var17;
 }
+if (var16){
 {
-{ /* Inline ropes#RopeBuffer#dumped (var_str) on <var_str:RopeBuffer> */
-var22 = var_str->attrs[COLOR_core__ropes__RopeBuffer___dumped].l; /* _dumped on <var_str:RopeBuffer> */
-var20 = var22;
-RET_LABEL21:(void)0;
+{ /* Inline ropes$RopeCharIteratorPiece$node (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var23 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+if (unlikely(var23 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
+fatal_exit(1);
 }
-{
-core___core__FlatString___with_infos(var6, var7, var16, var20); /* Direct call flat#FlatString#with_infos on <var6:FlatString>*/
+var21 = var23;
+RET_LABEL22:(void)0;
 }
-{
-{ /* Inline ropes#RopeBufSubstringIterator#nsstr= (self,var6) on <self:RopeBufSubstringIterator> */
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr].val = var6; /* _nsstr on <self:RopeBufSubstringIterator> */
-RET_LABEL23:(void)0;
 }
+var_currit = var21;
+/* <var_currit:String> isa Concat */
+cltype25 = type_core__ropes__Concat.color;
+idtype26 = type_core__ropes__Concat.id;
+if(cltype25 >= var_currit->type->table_size) {
+var24 = 0;
+} else {
+var24 = var_currit->type->type_table[cltype25] == idtype26;
+}
+var27 = !var24;
+if (var27){
+/* <var_currit:String> isa FlatString */
+cltype29 = type_core__FlatString.color;
+idtype30 = type_core__FlatString.id;
+if(cltype29 >= var_currit->type->table_size) {
+var28 = 0;
+} else {
+var28 = var_currit->type->type_table[cltype29] == idtype30;
+}
+if (unlikely(!var28)) {
+var_class_name31 = var_currit == NULL ? "null" : var_currit->type->name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name31);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 545);
+fatal_exit(1);
 }
 {
-var24 = core___core__RopeBuffer___core__abstract_text__Text__length(var_str);
+{ /* Inline ropes$ReverseRopeSubstrings$str= (self,var_currit) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val = var_currit; /* _str on <self:ReverseRopeSubstrings> */
+RET_LABEL32:(void)0;
+}
 }
+var_ = self;
 {
-{ /* Inline kernel#Int#== (var24,0l) on <var24:Int> */
-var27 = var24 == 0l;
-var25 = var27;
-goto RET_LABEL26;
-RET_LABEL26:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$pos (var_) on <var_:ReverseRopeSubstrings> */
+var35 = var_->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l; /* _pos on <var_:ReverseRopeSubstrings> */
+var33 = var35;
+RET_LABEL34:(void)0;
 }
 }
-if (var25){
 {
-{ /* Inline ropes#RopeBufSubstringIterator#nsstr_done= (self,1) on <self:RopeBufSubstringIterator> */
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr_done].s = 1; /* _nsstr_done on <self:RopeBufSubstringIterator> */
-RET_LABEL28:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$str (self) on <self:ReverseRopeSubstrings> */
+var38 = self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___str].val; /* _str on <self:ReverseRopeSubstrings> */
+if (unlikely(var38 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
 }
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 504);
+fatal_exit(1);
 }
-} else {
+var36 = var38;
+RET_LABEL37:(void)0;
 }
-RET_LABEL:;
 }
-/* method ropes#RopeBufSubstringIterator#is_ok for (self: RopeBufSubstringIterator): Bool */
-short int core__ropes___core__ropes__RopeBufSubstringIterator___core__abstract_collection__Iterator__is_ok(val* self) {
-short int var /* : Bool */;
-short int var1 /* : Bool */;
-val* var2 /* : Iterator[FlatText] */;
-val* var4 /* : Iterator[FlatText] */;
-short int var5 /* : Bool */;
-short int var_ /* var : Bool */;
-short int var6 /* : Bool */;
-short int var8 /* : Bool */;
-short int var9 /* : Bool */;
 {
-{ /* Inline ropes#RopeBufSubstringIterator#iter (self) on <self:RopeBufSubstringIterator> */
-var4 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
+{ /* Inline abstract_text$FlatText$length (var36) on <var36:FlatString> */
+var41 = var36->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var36:FlatString> */
+var39 = var41;
+RET_LABEL40:(void)0;
+}
+}
+{
+{ /* Inline kernel$Int$- (var33,var39) on <var33:Int> */
+/* Covariant cast for argument 0 (i) <var39:Int> isa OTHER */
+/* <var39:Int> isa OTHER */
+var44 = 1; /* easy <var39:Int> isa OTHER*/
+if (unlikely(!var44)) {
+var_class_name47 = type_core__Int.name;
+PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name47);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
-var2 = var4;
-RET_LABEL3:(void)0;
+var48 = var33 - var39;
+var42 = var48;
+goto RET_LABEL43;
+RET_LABEL43:(void)0;
 }
 }
 {
-var5 = ((short int(*)(val* self))((((long)var2&3)?class_info[((long)var2&3)]:var2->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var2); /* is_ok on <var2:Iterator[FlatText]>*/
+{ /* Inline ropes$ReverseRopeSubstrings$pos= (var_,var42) on <var_:ReverseRopeSubstrings> */
+var_->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var42; /* _pos on <var_:ReverseRopeSubstrings> */
+RET_LABEL49:(void)0;
 }
-var_ = var5;
-if (var5){
-var1 = var_;
-} else {
-{
-{ /* Inline ropes#RopeBufSubstringIterator#nsstr_done (self) on <self:RopeBufSubstringIterator> */
-var8 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr_done].s; /* _nsstr_done on <self:RopeBufSubstringIterator> */
-var6 = var8;
-RET_LABEL7:(void)0;
 }
+{
+{ /* Inline ropes$ReverseRopeSubstrings$iter= (self,var_curr) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___iter].val = var_curr; /* _iter on <self:ReverseRopeSubstrings> */
+RET_LABEL50:(void)0;
 }
-var9 = !var6;
-var1 = var9;
 }
-var = var1;
 goto RET_LABEL;
-RET_LABEL:;
-return var;
+} else {
 }
-/* method ropes#RopeBufSubstringIterator#item for (self: RopeBufSubstringIterator): FlatText */
-val* core__ropes___core__ropes__RopeBufSubstringIterator___core__abstract_collection__Iterator__item(val* self) {
-val* var /* : FlatText */;
-short int var1 /* : Bool */;
-val* var2 /* : Iterator[FlatText] */;
-val* var4 /* : Iterator[FlatText] */;
-short int var5 /* : Bool */;
-val* var6 /* : Iterator[FlatText] */;
-val* var8 /* : Iterator[FlatText] */;
-val* var9 /* : nullable Object */;
-val* var10 /* : FlatString */;
-val* var12 /* : FlatString */;
 {
-var1 = core__ropes___core__ropes__RopeBufSubstringIterator___core__abstract_collection__Iterator__is_ok(self);
+{ /* Inline ropes$RopeCharIteratorPiece$rdone (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var53 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var51 = var53;
+RET_LABEL52:(void)0;
 }
-if (unlikely(!var1)) {
-PRINT_ERROR("Runtime error: %s", "Assert failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 875);
-fatal_exit(1);
 }
+var54 = !var51;
+if (var54){
 {
-{ /* Inline ropes#RopeBufSubstringIterator#iter (self) on <self:RopeBufSubstringIterator> */
-var4 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var4 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
-fatal_exit(1);
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_curr,1) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+RET_LABEL55:(void)0;
 }
-var2 = var4;
-RET_LABEL3:(void)0;
 }
+var56 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
+var57 = var_currit->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_currit:String(Concat)> */
+if (unlikely(var57 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 552);
+fatal_exit(1);
 }
 {
-var5 = ((short int(*)(val* self))((((long)var2&3)?class_info[((long)var2&3)]:var2->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var2); /* is_ok on <var2:Iterator[FlatText]>*/
+((void(*)(val* self, val* p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var56, var57); /* node= on <var56:RopeCharIteratorPiece>*/
 }
-if (var5){
 {
-{ /* Inline ropes#RopeBufSubstringIterator#iter (self) on <self:RopeBufSubstringIterator> */
-var8 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var8 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
-fatal_exit(1);
+((void(*)(val* self, short int p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var56, 0); /* ldone= on <var56:RopeCharIteratorPiece>*/
 }
-var6 = var8;
-RET_LABEL7:(void)0;
+{
+((void(*)(val* self, short int p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var56, 0); /* rdone= on <var56:RopeCharIteratorPiece>*/
 }
+{
+((void(*)(val* self, val* p0))(var56->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var56, var_curr); /* prev= on <var56:RopeCharIteratorPiece>*/
 }
 {
-var9 = ((val*(*)(val* self))((((long)var6&3)?class_info[((long)var6&3)]:var6->class)->vft[COLOR_core__abstract_collection__Iterator__item]))(var6); /* item on <var6:Iterator[FlatText]>*/
+((void(*)(val* self))(var56->class->vft[COLOR_core__kernel__Object__init]))(var56); /* init on <var56:RopeCharIteratorPiece>*/
 }
-var = var9;
-goto RET_LABEL;
+var_curr = var56;
+goto BREAK_label;
 } else {
 }
 {
-{ /* Inline ropes#RopeBufSubstringIterator#nsstr (self) on <self:RopeBufSubstringIterator> */
-var12 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr].val; /* _nsstr on <self:RopeBufSubstringIterator> */
-if (unlikely(var12 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _nsstr");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 861);
-fatal_exit(1);
+{ /* Inline ropes$RopeCharIteratorPiece$ldone (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var60 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var58 = var60;
+RET_LABEL59:(void)0;
 }
-var10 = var12;
-RET_LABEL11:(void)0;
 }
+var61 = !var58;
+if (var61){
+{
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_curr,1) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+RET_LABEL62:(void)0;
 }
-var = var10;
-goto RET_LABEL;
-RET_LABEL:;
-return var;
 }
-/* method ropes#RopeBufSubstringIterator#next for (self: RopeBufSubstringIterator) */
-void core__ropes___core__ropes__RopeBufSubstringIterator___core__abstract_collection__Iterator__next(val* self) {
-val* var /* : Iterator[FlatText] */;
-val* var2 /* : Iterator[FlatText] */;
-short int var3 /* : Bool */;
-val* var4 /* : Iterator[FlatText] */;
-val* var6 /* : Iterator[FlatText] */;
-{
-{ /* Inline ropes#RopeBufSubstringIterator#iter (self) on <self:RopeBufSubstringIterator> */
-var2 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var2 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
+var63 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIteratorPiece);
+var64 = var_currit->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_currit:String(Concat)> */
+if (unlikely(var64 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 557);
 fatal_exit(1);
 }
-var = var2;
-RET_LABEL1:(void)0;
+{
+((void(*)(val* self, val* p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__node_61d]))(var63, var64); /* node= on <var63:RopeCharIteratorPiece>*/
 }
+{
+((void(*)(val* self, short int p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__ldone_61d]))(var63, 0); /* ldone= on <var63:RopeCharIteratorPiece>*/
 }
 {
-var3 = ((short int(*)(val* self))((((long)var&3)?class_info[((long)var&3)]:var->class)->vft[COLOR_core__abstract_collection__Iterator__is_ok]))(var); /* is_ok on <var:Iterator[FlatText]>*/
+((void(*)(val* self, short int p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__rdone_61d]))(var63, 0); /* rdone= on <var63:RopeCharIteratorPiece>*/
 }
-if (var3){
 {
-{ /* Inline ropes#RopeBufSubstringIterator#iter (self) on <self:RopeBufSubstringIterator> */
-var6 = self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___iter].val; /* _iter on <self:RopeBufSubstringIterator> */
-if (unlikely(var6 == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 859);
-fatal_exit(1);
+((void(*)(val* self, val* p0))(var63->class->vft[COLOR_core__ropes__RopeCharIteratorPiece__prev_61d]))(var63, var_curr); /* prev= on <var63:RopeCharIteratorPiece>*/
 }
-var4 = var6;
-RET_LABEL5:(void)0;
+{
+((void(*)(val* self))(var63->class->vft[COLOR_core__kernel__Object__init]))(var63); /* init on <var63:RopeCharIteratorPiece>*/
 }
+var_curr = var63;
+goto BREAK_label;
+} else {
 }
 {
-((void(*)(val* self))((((long)var4&3)?class_info[((long)var4&3)]:var4->class)->vft[COLOR_core__abstract_collection__Iterator__next]))(var4); /* next on <var4:Iterator[FlatText]>*/
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var_curr) on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var67 = var_curr->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_curr:nullable RopeCharIteratorPiece(RopeCharIteratorPiece)> */
+var65 = var67;
+RET_LABEL66:(void)0;
 }
-goto RET_LABEL;
+}
+var_curr = var65;
 } else {
+goto BREAK_label68;
+}
+BREAK_label: (void)0;
+}
+BREAK_label68: (void)0;
+{
+{ /* Inline kernel$Int$unary - (1l) on <1l:Int> */
+var71 = -1l;
+var69 = var71;
+goto RET_LABEL70;
+RET_LABEL70:(void)0;
+}
 }
 {
-{ /* Inline ropes#RopeBufSubstringIterator#nsstr_done= (self,1) on <self:RopeBufSubstringIterator> */
-self->attrs[COLOR_core__ropes__RopeBufSubstringIterator___nsstr_done].s = 1; /* _nsstr_done on <self:RopeBufSubstringIterator> */
-RET_LABEL7:(void)0;
+{ /* Inline ropes$ReverseRopeSubstrings$pos= (self,var69) on <self:ReverseRopeSubstrings> */
+self->attrs[COLOR_core__ropes__ReverseRopeSubstrings___pos].l = var69; /* _pos on <self:ReverseRopeSubstrings> */
+RET_LABEL72:(void)0;
 }
 }
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#iter for (self: RopeSubstrings): RopeCharIteratorPiece */
+/* method ropes$RopeSubstrings$iter for (self: RopeSubstrings): RopeCharIteratorPiece */
 val* core__ropes___core__ropes__RopeSubstrings___iter(val* self) {
 val* var /* : RopeCharIteratorPiece */;
 val* var1 /* : RopeCharIteratorPiece */;
 var1 = self->attrs[COLOR_core__ropes__RopeSubstrings___iter].val; /* _iter on <self:RopeSubstrings> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 893);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 570);
 fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#iter= for (self: RopeSubstrings, RopeCharIteratorPiece) */
+/* method ropes$RopeSubstrings$iter= for (self: RopeSubstrings, RopeCharIteratorPiece) */
 void core__ropes___core__ropes__RopeSubstrings___iter_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__RopeSubstrings___iter].val = p0; /* _iter on <self:RopeSubstrings> */
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#pos for (self: RopeSubstrings): Int */
+/* method ropes$RopeSubstrings$pos for (self: RopeSubstrings): Int */
 long core__ropes___core__ropes__RopeSubstrings___pos(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -9074,12 +4729,12 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#pos= for (self: RopeSubstrings, Int) */
+/* method ropes$RopeSubstrings$pos= for (self: RopeSubstrings, Int) */
 void core__ropes___core__ropes__RopeSubstrings___pos_61d(val* self, long p0) {
 self->attrs[COLOR_core__ropes__RopeSubstrings___pos].l = p0; /* _pos on <self:RopeSubstrings> */
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#max for (self: RopeSubstrings): Int */
+/* method ropes$RopeSubstrings$max for (self: RopeSubstrings): Int */
 long core__ropes___core__ropes__RopeSubstrings___max(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
@@ -9088,31 +4743,34 @@ var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#max= for (self: RopeSubstrings, Int) */
+/* method ropes$RopeSubstrings$max= for (self: RopeSubstrings, Int) */
 void core__ropes___core__ropes__RopeSubstrings___max_61d(val* self, long p0) {
 self->attrs[COLOR_core__ropes__RopeSubstrings___max].l = p0; /* _max on <self:RopeSubstrings> */
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#str for (self: RopeSubstrings): FlatString */
+/* method ropes$RopeSubstrings$str for (self: RopeSubstrings): FlatString */
 val* core__ropes___core__ropes__RopeSubstrings___str(val* self) {
 val* var /* : FlatString */;
 val* var1 /* : FlatString */;
 var1 = self->attrs[COLOR_core__ropes__RopeSubstrings___str].val; /* _str on <self:RopeSubstrings> */
 if (unlikely(var1 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 900);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 577);
 fatal_exit(1);
 }
 var = var1;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#str= for (self: RopeSubstrings, FlatString) */
+/* method ropes$RopeSubstrings$str= for (self: RopeSubstrings, FlatString) */
 void core__ropes___core__ropes__RopeSubstrings___str_61d(val* self, val* p0) {
 self->attrs[COLOR_core__ropes__RopeSubstrings___str].val = p0; /* _str on <self:RopeSubstrings> */
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#from for (self: RopeSubstrings, Concat, Int) */
+/* method ropes$RopeSubstrings$from for (self: RopeSubstrings, Concat, Int) */
 void core__ropes___core__ropes__RopeSubstrings___from(val* self, val* p0, long p1) {
 val* var_root /* var root: Concat */;
 long var_pos /* var pos: Int */;
@@ -9162,7 +4820,7 @@ int idtype47;
 const char* var_class_name48;
 long var49 /* : Int */;
 {
-{ /* Inline kernel#Object#init (self) on <self:RopeSubstrings> */
+{ /* Inline kernel$Object$init (self) on <self:RopeSubstrings> */
 RET_LABEL1:(void)0;
 }
 }
@@ -9186,21 +4844,21 @@ var = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIterator
 }
 var_r = var;
 {
-{ /* Inline ropes#Concat#length (var_root) on <var_root:Concat> */
+{ /* Inline ropes$Concat$length (var_root) on <var_root:Concat> */
 var4 = var_root->attrs[COLOR_core__ropes__Concat___length].l; /* _length on <var_root:Concat> */
 var2 = var4;
 RET_LABEL3:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var2,1l) on <var2:Int> */
+{ /* Inline kernel$Int$- (var2,1l) on <var2:Int> */
 /* Covariant cast for argument 0 (i) <1l:Int> isa OTHER */
 /* <1l:Int> isa OTHER */
 var7 = 1; /* easy <1l:Int> isa OTHER*/
 if (unlikely(!var7)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var8 = var2 - 1l;
@@ -9210,7 +4868,7 @@ RET_LABEL6:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#max= (self,var5) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$max= (self,var5) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___max].l = var5; /* _max on <self:RopeSubstrings> */
 RET_LABEL9:(void)0;
 }
@@ -9229,22 +4887,25 @@ var10 = var_rnod->type->type_table[cltype11] == idtype12;
 if (var10){
 var13 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
 if (unlikely(var13 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 910);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 587);
 fatal_exit(1);
 }
 {
 var14 = ((long(*)(val* self))(var13->class->vft[COLOR_core__abstract_text__Text__length]))(var13); /* length on <var13:String>*/
 }
 {
-{ /* Inline kernel#Int#>= (var_off,var14) on <var_off:Int> */
+{ /* Inline kernel$Int$>= (var_off,var14) on <var_off:Int> */
 /* Covariant cast for argument 0 (i) <var14:Int> isa OTHER */
 /* <var14:Int> isa OTHER */
 var17 = 1; /* easy <var14:Int> isa OTHER*/
 if (unlikely(!var17)) {
 var_class_name20 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name20);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 729);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 726);
 fatal_exit(1);
 }
 var21 = var_off >= var14;
@@ -9255,29 +4916,32 @@ RET_LABEL16:(void)0;
 }
 if (var15){
 {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
 var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_r:RopeCharIteratorPiece> */
 RET_LABEL22:(void)0;
 }
 }
 var23 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
 if (unlikely(var23 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 912);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 589);
 fatal_exit(1);
 }
 {
 var24 = ((long(*)(val* self))(var23->class->vft[COLOR_core__abstract_text__Text__length]))(var23); /* length on <var23:String>*/
 }
 {
-{ /* Inline kernel#Int#- (var_off,var24) on <var_off:Int> */
+{ /* Inline kernel$Int$- (var_off,var24) on <var_off:Int> */
 /* Covariant cast for argument 0 (i) <var24:Int> isa OTHER */
 /* <var24:Int> isa OTHER */
 var27 = 1; /* easy <var24:Int> isa OTHER*/
 if (unlikely(!var27)) {
 var_class_name30 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name30);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var31 = var_off - var24;
@@ -9289,8 +4953,11 @@ RET_LABEL26:(void)0;
 var_off = var25;
 var32 = var_rnod->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_rnod:String(Concat)> */
 if (unlikely(var32 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 913);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 590);
 fatal_exit(1);
 }
 var_rnod = var32;
@@ -9314,8 +4981,11 @@ var_r = var33;
 } else {
 var34 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
 if (unlikely(var34 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 916);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 593);
 fatal_exit(1);
 }
 var_rnod = var34;
@@ -9349,36 +5019,36 @@ var36 = var_rnod->type->type_table[cltype37] == idtype38;
 if (unlikely(!var36)) {
 var_class_name39 = var_rnod == NULL ? "null" : var_rnod->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name39);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 920);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 597);
 fatal_exit(1);
 }
 {
-{ /* Inline ropes#RopeSubstrings#str= (self,var_rnod) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$str= (self,var_rnod) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___str].val = var_rnod; /* _str on <self:RopeSubstrings> */
 RET_LABEL40:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_r,1) on <var_r:RopeCharIteratorPiece> */
 var_r->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_r:RopeCharIteratorPiece> */
 RET_LABEL41:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#iter= (self,var_r) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$iter= (self,var_r) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___iter].val = var_r; /* _iter on <self:RopeSubstrings> */
 RET_LABEL42:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#- (var_pos,var_off) on <var_pos:Int> */
+{ /* Inline kernel$Int$- (var_pos,var_off) on <var_pos:Int> */
 /* Covariant cast for argument 0 (i) <var_off:Int> isa OTHER */
 /* <var_off:Int> isa OTHER */
 var45 = 1; /* easy <var_off:Int> isa OTHER*/
 if (unlikely(!var45)) {
 var_class_name48 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name48);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 734);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
 fatal_exit(1);
 }
 var49 = var_pos - var_off;
@@ -9388,7 +5058,7 @@ RET_LABEL44:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#pos= (self,var43) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos= (self,var43) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___pos].l = var43; /* _pos on <self:RopeSubstrings> */
 RET_LABEL50:(void)0;
 }
@@ -9399,17 +5069,20 @@ goto BREAK_label;
 BREAK_label: (void)0;
 RET_LABEL:;
 }
-/* method ropes#RopeSubstrings#item for (self: RopeSubstrings): FlatString */
+/* method ropes$RopeSubstrings$item for (self: RopeSubstrings): FlatString */
 val* core__ropes___core__ropes__RopeSubstrings___core__abstract_collection__Iterator__item(val* self) {
 val* var /* : FlatString */;
 val* var1 /* : FlatString */;
 val* var3 /* : FlatString */;
 {
-{ /* Inline ropes#RopeSubstrings#str (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$str (self) on <self:RopeSubstrings> */
 var3 = self->attrs[COLOR_core__ropes__RopeSubstrings___str].val; /* _str on <self:RopeSubstrings> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 900);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 577);
 fatal_exit(1);
 }
 var1 = var3;
@@ -9421,7 +5094,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#is_ok for (self: RopeSubstrings): Bool */
+/* method ropes$RopeSubstrings$is_ok for (self: RopeSubstrings): Bool */
 short int core__ropes___core__ropes__RopeSubstrings___core__abstract_collection__Iterator__is_ok(val* self) {
 short int var /* : Bool */;
 long var1 /* : Int */;
@@ -9435,28 +5108,28 @@ int idtype;
 const char* var_class_name;
 short int var10 /* : Bool */;
 {
-{ /* Inline ropes#RopeSubstrings#pos (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos (self) on <self:RopeSubstrings> */
 var3 = self->attrs[COLOR_core__ropes__RopeSubstrings___pos].l; /* _pos on <self:RopeSubstrings> */
 var1 = var3;
 RET_LABEL2:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#max (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$max (self) on <self:RopeSubstrings> */
 var6 = self->attrs[COLOR_core__ropes__RopeSubstrings___max].l; /* _max on <self:RopeSubstrings> */
 var4 = var6;
 RET_LABEL5:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#<= (var1,var4) on <var1:Int> */
+{ /* Inline kernel$Int$<= (var1,var4) on <var1:Int> */
 /* Covariant cast for argument 0 (i) <var4:Int> isa OTHER */
 /* <var4:Int> isa OTHER */
 var9 = 1; /* easy <var4:Int> isa OTHER*/
 if (unlikely(!var9)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 724);
 fatal_exit(1);
 }
 var10 = var1 <= var4;
@@ -9470,13 +5143,13 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#index for (self: RopeSubstrings): Int */
+/* method ropes$RopeSubstrings$index for (self: RopeSubstrings): Int */
 long core__ropes___core__ropes__RopeSubstrings___core__abstract_collection__IndexedIterator__index(val* self) {
 long var /* : Int */;
 long var1 /* : Int */;
 long var3 /* : Int */;
 {
-{ /* Inline ropes#RopeSubstrings#pos (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos (self) on <self:RopeSubstrings> */
 var3 = self->attrs[COLOR_core__ropes__RopeSubstrings___pos].l; /* _pos on <self:RopeSubstrings> */
 var1 = var3;
 RET_LABEL2:(void)0;
@@ -9487,7 +5160,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeSubstrings#next for (self: RopeSubstrings) */
+/* method ropes$RopeSubstrings$next for (self: RopeSubstrings) */
 void core__ropes___core__ropes__RopeSubstrings___core__abstract_collection__Iterator__next(val* self) {
 val* var_ /* var : RopeSubstrings */;
 long var /* : Int */;
@@ -9516,7 +5189,7 @@ val* var27 /* : RopeCharIteratorPiece */;
 val* var29 /* : RopeCharIteratorPiece */;
 val* var30 /* : nullable RopeCharIteratorPiece */;
 val* var32 /* : nullable RopeCharIteratorPiece */;
-val* var_it /* var it: nullable RopeCharIteratorPiece */;
+val* var_it /* var it: RopeCharIteratorPiece */;
 val* var33 /* : String */;
 val* var35 /* : String */;
 val* var_rnod /* var rnod: String */;
@@ -9544,18 +5217,21 @@ val* var65 /* : String */;
 val* var67 /* : String */;
 var_ = self;
 {
-{ /* Inline ropes#RopeSubstrings#pos (var_) on <var_:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos (var_) on <var_:RopeSubstrings> */
 var2 = var_->attrs[COLOR_core__ropes__RopeSubstrings___pos].l; /* _pos on <var_:RopeSubstrings> */
 var = var2;
 RET_LABEL1:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#str (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$str (self) on <self:RopeSubstrings> */
 var5 = self->attrs[COLOR_core__ropes__RopeSubstrings___str].val; /* _str on <self:RopeSubstrings> */
 if (unlikely(var5 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _str");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 900);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 577);
 fatal_exit(1);
 }
 var3 = var5;
@@ -9563,21 +5239,21 @@ RET_LABEL4:(void)0;
 }
 }
 {
-{ /* Inline abstract_text#FlatText#length (var3) on <var3:FlatString> */
+{ /* Inline abstract_text$FlatText$length (var3) on <var3:FlatString> */
 var8 = var3->attrs[COLOR_core__abstract_text__FlatText___length].l; /* _length on <var3:FlatString> */
 var6 = var8;
 RET_LABEL7:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#+ (var,var6) on <var:Int> */
+{ /* Inline kernel$Int$+ (var,var6) on <var:Int> */
 /* Covariant cast for argument 0 (i) <var6:Int> isa OTHER */
 /* <var6:Int> isa OTHER */
 var11 = 1; /* easy <var6:Int> isa OTHER*/
 if (unlikely(!var11)) {
 var_class_name = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 731);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 728);
 fatal_exit(1);
 }
 var12 = var + var6;
@@ -9587,34 +5263,34 @@ RET_LABEL10:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#pos= (var_,var9) on <var_:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos= (var_,var9) on <var_:RopeSubstrings> */
 var_->attrs[COLOR_core__ropes__RopeSubstrings___pos].l = var9; /* _pos on <var_:RopeSubstrings> */
 RET_LABEL13:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#pos (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$pos (self) on <self:RopeSubstrings> */
 var16 = self->attrs[COLOR_core__ropes__RopeSubstrings___pos].l; /* _pos on <self:RopeSubstrings> */
 var14 = var16;
 RET_LABEL15:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeSubstrings#max (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$max (self) on <self:RopeSubstrings> */
 var19 = self->attrs[COLOR_core__ropes__RopeSubstrings___max].l; /* _max on <self:RopeSubstrings> */
 var17 = var19;
 RET_LABEL18:(void)0;
 }
 }
 {
-{ /* Inline kernel#Int#> (var14,var17) on <var14:Int> */
+{ /* Inline kernel$Int$> (var14,var17) on <var14:Int> */
 /* Covariant cast for argument 0 (i) <var17:Int> isa OTHER */
 /* <var17:Int> isa OTHER */
 var22 = 1; /* easy <var17:Int> isa OTHER*/
 if (unlikely(!var22)) {
 var_class_name25 = type_core__Int.name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "OTHER", var_class_name25);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 730);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__kernel, 727);
 fatal_exit(1);
 }
 var26 = var14 > var17;
@@ -9628,11 +5304,14 @@ goto RET_LABEL;
 } else {
 }
 {
-{ /* Inline ropes#RopeSubstrings#iter (self) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$iter (self) on <self:RopeSubstrings> */
 var29 = self->attrs[COLOR_core__ropes__RopeSubstrings___iter].val; /* _iter on <self:RopeSubstrings> */
 if (unlikely(var29 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _iter");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 893);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 570);
 fatal_exit(1);
 }
 var27 = var29;
@@ -9640,28 +5319,30 @@ RET_LABEL28:(void)0;
 }
 }
 {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var27) on <var27:RopeCharIteratorPiece> */
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var27) on <var27:RopeCharIteratorPiece> */
 var32 = var27->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var27:RopeCharIteratorPiece> */
 var30 = var32;
 RET_LABEL31:(void)0;
 }
 }
-var_it = var30;
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 939);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#node (var_it) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+if (unlikely(var30 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 615);
 fatal_exit(1);
 }
-var35 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_it:nullable RopeCharIteratorPiece> */
+var_it = var30;
+{
+{ /* Inline ropes$RopeCharIteratorPiece$node (var_it) on <var_it:RopeCharIteratorPiece> */
+var35 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_it:RopeCharIteratorPiece> */
 if (unlikely(var35 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
 fatal_exit(1);
 }
 var33 = var35;
@@ -9680,33 +5361,15 @@ var36 = var_rnod->type->type_table[cltype37] == idtype38;
 }
 var39 = !var36;
 if (var39){
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 942);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_it,1) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 614);
-fatal_exit(1);
-}
-var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_it,1) on <var_it:RopeCharIteratorPiece> */
+var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_it:RopeCharIteratorPiece> */
 RET_LABEL40:(void)0;
 }
 }
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 943);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_it,1) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 616);
-fatal_exit(1);
-}
-var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_it,1) on <var_it:RopeCharIteratorPiece> */
+var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_it:RopeCharIteratorPiece> */
 RET_LABEL41:(void)0;
 }
 }
@@ -9721,22 +5384,17 @@ var42 = var_rnod->type->type_table[cltype43] == idtype44;
 if (unlikely(!var42)) {
 var_class_name45 = var_rnod == NULL ? "null" : var_rnod->type->name;
 PRINT_ERROR("Runtime error: Cast failed. Expected `%s`, got `%s`", "FlatString", var_class_name45);
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 944);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 621);
 fatal_exit(1);
 }
 {
-{ /* Inline ropes#RopeSubstrings#str= (self,var_rnod) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$str= (self,var_rnod) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___str].val = var_rnod; /* _str on <self:RopeSubstrings> */
 RET_LABEL46:(void)0;
 }
 }
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Cast failed");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 945);
-fatal_exit(1);
-}
 {
-{ /* Inline ropes#RopeSubstrings#iter= (self,var_it) on <self:RopeSubstrings> */
+{ /* Inline ropes$RopeSubstrings$iter= (self,var_it) on <self:RopeSubstrings> */
 self->attrs[COLOR_core__ropes__RopeSubstrings___iter].val = var_it; /* _iter on <self:RopeSubstrings> */
 RET_LABEL47:(void)0;
 }
@@ -9744,18 +5402,9 @@ RET_LABEL47:(void)0;
 goto BREAK_label;
 } else {
 }
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 948);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone (var_it) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 614);
-fatal_exit(1);
-}
-var50 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$ldone (var_it) on <var_it:RopeCharIteratorPiece> */
+var50 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s; /* _ldone on <var_it:RopeCharIteratorPiece> */
 var48 = var50;
 RET_LABEL49:(void)0;
 }
@@ -9764,23 +5413,17 @@ var51 = !var48;
 if (var51){
 var52 = var_rnod->attrs[COLOR_core__ropes__Concat___left].val; /* _left on <var_rnod:String(Concat)> */
 if (unlikely(var52 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _left");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 949);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 626);
 fatal_exit(1);
 }
 var_rnod = var52;
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 950);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#ldone= (var_it,1) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 614);
-fatal_exit(1);
-}
-var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$ldone= (var_it,1) on <var_it:RopeCharIteratorPiece> */
+var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___ldone].s = 1; /* _ldone on <var_it:RopeCharIteratorPiece> */
 RET_LABEL53:(void)0;
 }
 }
@@ -9802,43 +5445,28 @@ var54 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIterat
 }
 var_it = var54;
 } else {
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 952);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone (var_it) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 616);
-fatal_exit(1);
-}
-var57 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$rdone (var_it) on <var_it:RopeCharIteratorPiece> */
+var57 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s; /* _rdone on <var_it:RopeCharIteratorPiece> */
 var55 = var57;
 RET_LABEL56:(void)0;
 }
 }
 var58 = !var55;
 if (var58){
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 953);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#rdone= (var_it,1) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 616);
-fatal_exit(1);
-}
-var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$rdone= (var_it,1) on <var_it:RopeCharIteratorPiece> */
+var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___rdone].s = 1; /* _rdone on <var_it:RopeCharIteratorPiece> */
 RET_LABEL59:(void)0;
 }
 }
 var60 = var_rnod->attrs[COLOR_core__ropes__Concat___right].val; /* _right on <var_rnod:String(Concat)> */
 if (unlikely(var60 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _right");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 954);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 631);
 fatal_exit(1);
 }
 var_rnod = var60;
@@ -9860,38 +5488,31 @@ var61 = NEW_core__ropes__RopeCharIteratorPiece(&type_core__ropes__RopeCharIterat
 }
 var_it = var61;
 } else {
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 957);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#prev (var_it) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 618);
-fatal_exit(1);
-}
-var64 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_it:nullable RopeCharIteratorPiece> */
+{
+{ /* Inline ropes$RopeCharIteratorPiece$prev (var_it) on <var_it:RopeCharIteratorPiece> */
+var64 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___prev].val; /* _prev on <var_it:RopeCharIteratorPiece> */
 var62 = var64;
 RET_LABEL63:(void)0;
 }
 }
-var_it = var62;
-if (var_it == NULL) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 958);
-fatal_exit(1);
-} else {
-{ /* Inline ropes#RopeCharIteratorPiece#node (var_it) on <var_it:nullable RopeCharIteratorPiece> */
-if (unlikely(var_it == NULL)) {
-PRINT_ERROR("Runtime error: %s", "Receiver is null");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+if (unlikely(var62 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Cast failed");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 634);
 fatal_exit(1);
 }
-var67 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_it:nullable RopeCharIteratorPiece> */
+var_it = var62;
+{
+{ /* Inline ropes$RopeCharIteratorPiece$node (var_it) on <var_it:RopeCharIteratorPiece> */
+var67 = var_it->attrs[COLOR_core__ropes__RopeCharIteratorPiece___node].val; /* _node on <var_it:RopeCharIteratorPiece> */
 if (unlikely(var67 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _node");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 612);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__ropes, 322);
 fatal_exit(1);
 }
 var65 = var67;
@@ -9907,7 +5528,7 @@ BREAK_label68: (void)0;
 BREAK_label: (void)0;
 RET_LABEL:;
 }
-/* method ropes#RopeChars#[] for (self: RopeChars, Int): Char */
+/* method ropes$RopeChars$[] for (self: RopeChars, Int): Char */
 uint32_t core__ropes___core__ropes__RopeChars___core__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
 uint32_t var /* : Char */;
 long var_i /* var i: Int */;
@@ -9916,11 +5537,14 @@ val* var3 /* : Text */;
 uint32_t var4 /* : Char */;
 var_i = p0;
 {
-{ /* Inline abstract_text#StringCharView#target (self) on <self:RopeChars> */
+{ /* Inline abstract_text$StringCharView$target (self) on <self:RopeChars> */
 var3 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:RopeChars> */
 if (unlikely(var3 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1138);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
 fatal_exit(1);
 }
 var1 = var3;
@@ -9935,7 +5559,7 @@ goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeChars#[] for (self: SequenceRead[nullable Object], Int): nullable Object */
+/* method ropes$RopeChars$[] for (self: SequenceRead[nullable Object], Int): nullable Object */
 val* VIRTUAL_core__ropes___core__ropes__RopeChars___core__abstract_collection__SequenceRead___91d_93d(val* self, long p0) {
 val* var /* : nullable Object */;
 uint32_t var1 /* : Char */;
@@ -9946,7 +5570,7 @@ var = var2;
 RET_LABEL:;
 return var;
 }
-/* method ropes#RopeChars#iterator_from for (self: RopeChars, Int): IndexedIterator[Char] */
+/* method ropes$RopeChars$iterator_from for (self: RopeChars, Int): IndexedIterator[Char] */
 val* core__ropes___core__ropes__RopeChars___core__abstract_collection__SequenceRead__iterator_from(val* self, long p0) {
 val* var /* : IndexedIterator[Char] */;
 long var_i /* var i: Int */;
@@ -9956,11 +5580,46 @@ val* var4 /* : Text */;
 var_i = p0;
 var1 = NEW_core__ropes__RopeCharIterator(&type_core__ropes__RopeCharIterator);
 {
-{ /* Inline abstract_text#StringCharView#target (self) on <self:RopeChars> */
+{ /* Inline abstract_text$StringCharView$target (self) on <self:RopeChars> */
+var4 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:RopeChars> */
+if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
+PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
+fatal_exit(1);
+}
+var2 = var4;
+RET_LABEL3:(void)0;
+}
+}
+{
+core__ropes___core__ropes__RopeCharIterator___from(var1, var2, var_i); /* Direct call ropes$RopeCharIterator$from on <var1:RopeCharIterator>*/
+}
+var = var1;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}
+/* method ropes$RopeChars$reverse_iterator_from for (self: RopeChars, Int): IndexedIterator[Char] */
+val* core__ropes___core__ropes__RopeChars___core__abstract_collection__SequenceRead__reverse_iterator_from(val* self, long p0) {
+val* var /* : IndexedIterator[Char] */;
+long var_i /* var i: Int */;
+val* var1 /* : RopeCharReverseIterator */;
+val* var2 /* : Text */;
+val* var4 /* : Text */;
+var_i = p0;
+var1 = NEW_core__ropes__RopeCharReverseIterator(&type_core__ropes__RopeCharReverseIterator);
+{
+{ /* Inline abstract_text$StringCharView$target (self) on <self:RopeChars> */
 var4 = self->attrs[COLOR_core__abstract_text__StringCharView___target].val; /* _target on <self:RopeChars> */
 if (unlikely(var4 == NULL)) {
+if(catchStack.cursor >= 0){
+longjmp(catchStack.envs[catchStack.cursor], 1);
+}
 PRINT_ERROR("Runtime error: %s", "Uninitialized attribute _target");
-PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1138);
+PRINT_ERROR(" (%s:%d)\n", FILE_core__abstract_text, 1320);
 fatal_exit(1);
 }
 var2 = var4;
@@ -9968,10 +5627,18 @@ RET_LABEL3:(void)0;
 }
 }
 {
-core__ropes___core__ropes__RopeCharIterator___from(var1, var2, var_i); /* Direct call ropes#RopeCharIterator#from on <var1:RopeCharIterator>*/
+core__ropes___core__ropes__RopeCharReverseIterator___from(var1, var2, var_i); /* Direct call ropes$RopeCharReverseIterator$from on <var1:RopeCharReverseIterator>*/
 }
 var = var1;
 goto RET_LABEL;
 RET_LABEL:;
 return var;
 }
+/* method ropes$Sys$maxlen for (self: Sys): Int */
+long core__ropes___Sys___maxlen(val* self) {
+long var /* : Int */;
+var = 512l;
+goto RET_LABEL;
+RET_LABEL:;
+return var;
+}