c_src: regenerate with soft nullable handling
[nit.git] / c_src / control_flow._sep.c
index 24d21e2..a0b95d0 100644 (file)
 /* This C file is generated by NIT to compile module control_flow. */
 #include "control_flow._sep.h"
-void control_flow___MMSrcModule___do_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 23, LOCATE_control_flow___MMSrcModule___do_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
+val_t control_flow___VariableContext___to_s(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 183, LOCATE_control_flow___VariableContext___to_s};
+    static val_t once_value_2 = NIT_NULL; /* Once value for string variable[8]*/
+    static val_t once_value_3 = NIT_NULL; /* Once value for string variable[8]*/
+    static val_t once_value_4 = NIT_NULL; /* Once value for string variable[8]*/
+  val_t variable[9];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[1] =  param0;
-  variable[4] = variable[0];
-  variable[5] = NEW_ControlFlowVisitor_control_flow___ControlFlowVisitor___init( variable[1] /*tc*/, variable[4]); /*new ControlFlowVisitor*/
-  variable[4] = variable[5];
-  variable[3] = variable[4];
-  variable[4] = variable[0];
-  variable[4] = CALL_syntax_base___MMSrcModule___node(variable[4])(variable[4]) /*MMSrcModule::node*/;
-  CALL_parser_prod___Visitor___visit( variable[3] /*tv*/)( variable[3] /*tv*/, variable[4]) /*ControlFlowVisitor::visit*/;
+  /* Register variable[1]: Method return value and escape marker */
+  /* Register variable[2]: Local variable */
+  /* Register variable[3]: Result */
+  variable[3] = NEW_Buffer_string___Buffer___init() /*new Buffer*/;
+  variable[2] = variable[3];
+  /* Register variable[3]: Result */
+  variable[3] = CALL_control_flow___VariableContext___node(variable[0])(variable[0]) /*VariableContext::node*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_parser_prod___PNode___locate(variable[3])(variable[3]) /*PNode::locate*/;
+  CALL_abstract_collection___IndexedCollection___append( variable[2] /*s*/)( variable[2] /*s*/, variable[3]) /*Buffer::append*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/;
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*Collection::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[4])) break; /*for*/
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
+    variable[5] = variable[4];
+    /* Register variable[6]: Local variable */
+    /* Register variable[7]: Result */
+    variable[7] = CALL_control_flow___VariableContext___stype(variable[0])(variable[0],  variable[5] /*v*/) /*VariableContext::stype*/;
+    variable[6] = variable[7];
+    /* Register variable[7]: Result */
+    variable[7] = TAG_Bool(( variable[6] /*t*/ ==  NIT_NULL /*null*/) || (( variable[6] /*t*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[6] /*t*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[6] /*t*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[6] /*t*/)( variable[6] /*t*/,  NIT_NULL /*null*/) /*Object::==*/)))));
+    if (UNTAG_Bool(variable[7])) { /*if*/
+      goto continue_1;
+    }
+    variable[7] = NEW_Array_array___Array___with_capacity(TAG_Int(5)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+    /* Register variable[8]: Once String constant */
+    if (once_value_2 != NIT_NULL) variable[8] = once_value_2;
+    else {
+      variable[8] = NEW_String_string___String___with_native(BOX_NativeString(" "), TAG_Int(1)) /*new String*/;
+      once_value_2 = variable[8];
+    }
+    /* Register variable[8]: Result */
+    /* Ensure var variable[8]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7], variable[8]) /*AbstractArray::add*/;
+    variable[8] =  variable[5] /*v*/ /* Ensure var: super-string element*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7], CALL_string___Object___to_s(variable[8])(variable[8]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[8]: Once String constant */
+    if (once_value_3 != NIT_NULL) variable[8] = once_value_3;
+    else {
+      variable[8] = NEW_String_string___String___with_native(BOX_NativeString(":"), TAG_Int(1)) /*new String*/;
+      once_value_3 = variable[8];
+    }
+    /* Register variable[8]: Result */
+    /* Ensure var variable[8]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7], variable[8]) /*AbstractArray::add*/;
+    variable[8] =  variable[6] /*t*/ /* Ensure var: super-string element*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7], CALL_string___Object___to_s(variable[8])(variable[8]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[8]: Once String constant */
+    if (once_value_4 != NIT_NULL) variable[8] = once_value_4;
+    else {
+      variable[8] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+      once_value_4 = variable[8];
+    }
+    /* Register variable[8]: Result */
+    /* Ensure var variable[8]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[7])(variable[7], variable[8]) /*AbstractArray::add*/;
+    /* Register variable[7]: Result */
+    variable[7] = CALL_string___Object___to_s(variable[7])(variable[7]) /*Object::to_s*/;
+    CALL_abstract_collection___IndexedCollection___append( variable[2] /*s*/)( variable[2] /*s*/, variable[7]) /*Buffer::append*/;
+    continue_1: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
+  }
+  break_1: while(0);
+  /* Register variable[3]: Result */
+  variable[3] = CALL_string___Object___to_s( variable[2] /*s*/)( variable[2] /*s*/) /*Buffer::to_s*/;
+  variable[1] = variable[3];
+  goto return_label0;
   return_label0: while(false);
   tracehead = trace.prev;
-  return;
-}
-val_t control_flow___Variable___must_be_set(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 33, LOCATE_control_flow___Variable___must_be_set};
-  val_t variable[2];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  TAG_Bool(false);
-  goto return_label1;
-  return_label1: while(false);
-  tracehead = trace.prev;
   return variable[1];
 }
-val_t control_flow___VarVariable___must_be_set(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 38, LOCATE_control_flow___VarVariable___must_be_set};
-  val_t variable[2];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  TAG_Bool(true);
-  goto return_label2;
-  return_label2: while(false);
-  tracehead = trace.prev;
-  return variable[1];
-}
-void control_flow___ControlFlowVisitor___visit(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 49, LOCATE_control_flow___ControlFlowVisitor___visit};
+val_t control_flow___VariableContext_____bra(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 25, LOCATE_control_flow___VariableContext_____bra};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[1] /*n*/ ==  NIT_NULL /*null*/) || (( variable[1] /*n*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[1] /*n*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[1] /*n*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[1] /*n*/)( variable[1] /*n*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___MapRead___has_key(variable[3])(variable[3],  variable[1] /*s*/) /*MapRead::has_key*/;
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    CALL_control_flow___PNode___accept_control_flow( variable[1] /*n*/)( variable[1] /*n*/, variable[3]) /*PNode::accept_control_flow*/;
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_abstract_collection___MapRead_____bra(variable[3])(variable[3],  variable[1] /*s*/) /*MapRead::[]*/;
+    variable[2] = variable[3];
+    goto return_label5;
+  } else { /*if*/
+    variable[2] =  NIT_NULL /*null*/;
+    goto return_label5;
   }
-  return_label3: while(false);
+  return_label5: while(false);
   tracehead = trace.prev;
-  return;
-}
-val_t control_flow___ControlFlowVisitor___once_count(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 54, LOCATE_control_flow___ControlFlowVisitor___once_count};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowVisitor____once_count( self) /*ControlFlowVisitor::_once_count*/;
+  return variable[2];
 }
-void control_flow___ControlFlowVisitor___once_count__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 54, LOCATE_control_flow___ControlFlowVisitor___once_count__eq};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
+void control_flow___VariableContext___add(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 36, LOCATE_control_flow___VariableContext___add};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  ATTR_control_flow___ControlFlowVisitor____once_count( self) /*ControlFlowVisitor::_once_count*/ =  param0;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/;
+  /* Register variable[4]: Result */
+  variable[4] = CALL_syntax_base___Variable___name( variable[1] /*v*/)( variable[1] /*v*/) /*Variable::name*/;
+  CALL_abstract_collection___Map_____braeq(variable[3])(variable[3], variable[4],  variable[1] /*v*/) /*Map::[]=*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/;
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3],  variable[1] /*v*/) /*SimpleCollection::add*/;
+  return_label6: while(false);
   tracehead = trace.prev;
   return;
 }
-val_t control_flow___ControlFlowVisitor___control_flow_ctx(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 57, LOCATE_control_flow___ControlFlowVisitor___control_flow_ctx};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowVisitor____control_flow_ctx( self) /*ControlFlowVisitor::_control_flow_ctx*/;
-}
-void control_flow___ControlFlowVisitor___control_flow_ctx__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 57, LOCATE_control_flow___ControlFlowVisitor___control_flow_ctx__eq};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
+void control_flow___VariableContext___mark_is_set(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 43, LOCATE_control_flow___VariableContext___mark_is_set};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  ATTR_control_flow___ControlFlowVisitor____control_flow_ctx( self) /*ControlFlowVisitor::_control_flow_ctx*/ =  param0;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____set_variables(variable[0]) /*VariableContext::_set_variables*/;
+  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3],  variable[1] /*v*/) /*HashSet::add*/;
+  return_label7: while(false);
   tracehead = trace.prev;
   return;
 }
-void control_flow___ControlFlowVisitor___check_is_set(val_t  self, val_t  param0, val_t  param1) {
-  struct trace_t trace = {NULL, NULL, 60, LOCATE_control_flow___ControlFlowVisitor___check_is_set};
-  val_t variable[11];
-  void **closurevariable = NULL;
+void control_flow___VariableContext___check_is_set(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 48, LOCATE_control_flow___VariableContext___check_is_set};
+    static val_t once_value_9 = NIT_NULL; /* Once value for string variable[6]*/
+    static val_t once_value_10 = NIT_NULL; /* Once value for string variable[6]*/
+      static val_t once_value_12 = NIT_NULL; /* Once value for string variable[6]*/
+      static val_t once_value_13 = NIT_NULL; /* Once value for string variable[6]*/
+      static val_t once_value_14 = NIT_NULL; /* Once value for string variable[7]*/
+      static val_t once_value_15 = NIT_NULL; /* Once value for string variable[6]*/
+      static val_t once_value_16 = NIT_NULL; /* Once value for string variable[7]*/
+      static val_t once_value_17 = NIT_NULL; /* Once value for string variable[6]*/
+  val_t variable[8];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
   variable[4] = CALL_control_flow___Variable___must_be_set( variable[2] /*v*/)( variable[2] /*v*/) /*Variable::must_be_set*/;
-  variable[5] = variable[4];
-  if (UNTAG_Bool(variable[5])) { /* and */
-    variable[5] = variable[0];
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx(variable[5])(variable[5]) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[5] = CALL_control_flow___ControlFlowContext___is_set(variable[5])(variable[5],  variable[2] /*v*/) /*ControlFlowContext::is_set*/;
-    variable[5] =  TAG_Bool(!UNTAG_Bool(variable[5]));
+  /* Ensure var variable[4]: Left 'and' operand*/
+  if (UNTAG_Bool(variable[4])) { /* and */
+    /* Register variable[4]: Result */
+    variable[4] = CALL_control_flow___VariableContext___is_set(variable[0])(variable[0],  variable[2] /*v*/) /*VariableContext::is_set*/;
+    variable[4] =  TAG_Bool(!UNTAG_Bool(variable[4]));
   }
-  variable[4] = variable[5];
+  /* Register variable[4]: Result */
   if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    variable[5] = NEW_Array_array___Array___with_capacity(TAG_Int(3)); /*new Array[String]*/
-    variable[6] = NEW_String_string___String___with_native(BOX_NativeString("Error: variable '"), TAG_Int(17)); /*new String*/
-    variable[7] = variable[6];
-    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[7]) /*AbstractArray::add*/;
-    variable[8] =  variable[2] /*v*/;
-    variable[8] = CALL_string___Object___to_s(variable[8])(variable[8]) /*Object::to_s*/;
-    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[8]) /*AbstractArray::add*/;
-    variable[9] = NEW_String_string___String___with_native(BOX_NativeString("' is possibly unset."), TAG_Int(20)); /*new String*/
-    variable[10] = variable[9];
-    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[10]) /*AbstractArray::add*/;
+    /* Register variable[4]: Result */
+    variable[4] = ATTR_control_flow___VariableContext____visitor(variable[0]) /*VariableContext::_visitor*/;
+    variable[5] = NEW_Array_array___Array___with_capacity(TAG_Int(3)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+    /* Register variable[6]: Once String constant */
+    if (once_value_9 != NIT_NULL) variable[6] = once_value_9;
+    else {
+      variable[6] = NEW_String_string___String___with_native(BOX_NativeString("Error: variable '"), TAG_Int(17)) /*new String*/;
+      once_value_9 = variable[6];
+    }
+    /* Register variable[6]: Result */
+    /* Ensure var variable[6]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+    variable[6] =  variable[2] /*v*/ /* Ensure var: super-string element*/;
+    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], CALL_string___Object___to_s(variable[6])(variable[6]) /*Object::to_s*/) /*AbstractArray::add*/;
+    /* Register variable[6]: Once String constant */
+    if (once_value_10 != NIT_NULL) variable[6] = once_value_10;
+    else {
+      variable[6] = NEW_String_string___String___with_native(BOX_NativeString("' is possibly unset."), TAG_Int(20)) /*new String*/;
+      once_value_10 = variable[6];
+    }
+    /* Register variable[6]: Result */
+    /* Ensure var variable[6]: super-string element*/
+    CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+    /* Register variable[5]: Result */
     variable[5] = CALL_string___Object___to_s(variable[5])(variable[5]) /*Object::to_s*/;
     CALL_syntax_base___AbsSyntaxVisitor___error(variable[4])(variable[4],  variable[1] /*n*/, variable[5]) /*AbsSyntaxVisitor::error*/;
-    variable[5] = variable[0];
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx(variable[5])(variable[5]) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[4] = variable[5];
+    /* Register variable[4]: Local variable */
+    variable[4] = variable[0];
     while (true) { /*while*/
-      variable[5] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[4] /*cfc*/ ==  NIT_NULL /*null*/) || (( variable[4] /*cfc*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[4] /*cfc*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[4] /*cfc*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[4] /*cfc*/)( variable[4] /*cfc*/,  NIT_NULL /*null*/) /*Object::==*/)))))));
-      if (!UNTAG_Bool(variable[5])) break; /* while*/
-      variable[5] = variable[0];
-      variable[6] = NEW_String_string___String___with_native(BOX_NativeString("cfc: "), TAG_Int(5)); /*new String*/
-      variable[7] = CALL_control_flow___ControlFlowContext___set_variables( variable[4] /*cfc*/)( variable[4] /*cfc*/) /*ControlFlowContext::set_variables*/;
-      variable[8] = NEW_String_string___String___with_native(BOX_NativeString(" "), TAG_Int(1)); /*new String*/
-      variable[7] = CALL_string___Collection___join(variable[7])(variable[7], variable[8]) /*Collection::join*/;
-      variable[6] = CALL_string___String_____plus(variable[6])(variable[6], variable[7]) /*String::+*/;
-      CALL_file___Object___print(variable[5])(variable[5], variable[6]) /*Object::print*/;
-      variable[5] = CALL_control_flow___ControlFlowContext___prev( variable[4] /*cfc*/)( variable[4] /*cfc*/) /*ControlFlowContext::prev*/;
-      variable[4] = variable[5] /*cfc=*/;
-      continue_5: while(0);
+      if (!UNTAG_Bool( TAG_Bool(true))) break; /* while*/
+      variable[5] = NEW_Array_array___Array___with_capacity(TAG_Int(7)) /*new Array[String]*/ /* Ensure var: Array (for super-string)*/;
+      /* Register variable[6]: Once String constant */
+      if (once_value_12 != NIT_NULL) variable[6] = once_value_12;
+      else {
+        variable[6] = NEW_String_string___String___with_native(BOX_NativeString("  "), TAG_Int(2)) /*new String*/;
+        once_value_12 = variable[6];
+      }
+      /* Register variable[6]: Result */
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Result */
+      variable[6] = CALL_control_flow___VariableContext___node( variable[4] /*x*/)( variable[4] /*x*/) /*VariableContext::node*/;
+      /* Register variable[6]: Result */
+      variable[6] = CALL_parser_prod___PNode___locate(variable[6])(variable[6]) /*PNode::locate*/;
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Once String constant */
+      if (once_value_13 != NIT_NULL) variable[6] = once_value_13;
+      else {
+        variable[6] = NEW_String_string___String___with_native(BOX_NativeString(": "), TAG_Int(2)) /*new String*/;
+        once_value_13 = variable[6];
+      }
+      /* Register variable[6]: Result */
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Result */
+      variable[6] = ATTR_control_flow___VariableContext____set_variables( variable[4] /*x*/) /*VariableContext::_set_variables*/;
+      /* Register variable[7]: Once String constant */
+      if (once_value_14 != NIT_NULL) variable[7] = once_value_14;
+      else {
+        variable[7] = NEW_String_string___String___with_native(BOX_NativeString(", "), TAG_Int(2)) /*new String*/;
+        once_value_14 = variable[7];
+      }
+      /* Register variable[7]: Result */
+      /* Register variable[6]: Result */
+      variable[6] = CALL_string___Collection___join(variable[6])(variable[6], variable[7]) /*Collection::join*/;
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Once String constant */
+      if (once_value_15 != NIT_NULL) variable[6] = once_value_15;
+      else {
+        variable[6] = NEW_String_string___String___with_native(BOX_NativeString(" ; "), TAG_Int(3)) /*new String*/;
+        once_value_15 = variable[6];
+      }
+      /* Register variable[6]: Result */
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Result */
+      variable[6] = ATTR_control_flow___VariableContext____dico( variable[4] /*x*/) /*VariableContext::_dico*/;
+      /* Register variable[7]: Once String constant */
+      if (once_value_16 != NIT_NULL) variable[7] = once_value_16;
+      else {
+        variable[7] = NEW_String_string___String___with_native(BOX_NativeString(", "), TAG_Int(2)) /*new String*/;
+        once_value_16 = variable[7];
+      }
+      /* Register variable[7]: Result */
+      /* Register variable[6]: Result */
+      variable[6] = CALL_string___Collection___join(variable[6])(variable[6], variable[7]) /*Collection::join*/;
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[6]: Once String constant */
+      if (once_value_17 != NIT_NULL) variable[6] = once_value_17;
+      else {
+        variable[6] = NEW_String_string___String___with_native(BOX_NativeString(""), TAG_Int(0)) /*new String*/;
+        once_value_17 = variable[6];
+      }
+      /* Register variable[6]: Result */
+      /* Ensure var variable[6]: super-string element*/
+      CALL_abstract_collection___SimpleCollection___add(variable[5])(variable[5], variable[6]) /*AbstractArray::add*/;
+      /* Register variable[5]: Result */
+      variable[5] = CALL_string___Object___to_s(variable[5])(variable[5]) /*Object::to_s*/;
+      CALL_file___Object___print(variable[0])(variable[0], variable[5]) /*Object::print*/;
+      /* Register variable[5]: Local variable */
+      variable[5] =  variable[4] /*x*/;
+      /* Register variable[6]: Result */
+      variable[6] = TAG_Bool(( variable[5] /*x0*/==NIT_NULL) || VAL_ISA( variable[5] /*x0*/, COLOR_SubVariableContext, ID_SubVariableContext)) /*cast SubVariableContext*/;
+      if (UNTAG_Bool(variable[6])) { /*if*/
+        /* Register variable[6]: Result */
+        variable[6] = CALL_control_flow___SubVariableContext___prev( variable[5] /*x0*/)( variable[5] /*x0*/) /*SubVariableContext::prev*/;
+        variable[4] = variable[6] /*x=*/;
+      } else { /*if*/
+        goto break_11;
+      }
+      continue_11: while(0);
     }
-    break_5: while(0);
+    break_11: while(0);
   }
-  return_label4: while(false);
+  return_label8: while(false);
   tracehead = trace.prev;
   return;
 }
-void control_flow___ControlFlowVisitor___mark_is_set(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 72, LOCATE_control_flow___ControlFlowVisitor___mark_is_set};
+val_t control_flow___VariableContext___stype(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 65, LOCATE_control_flow___VariableContext___stype};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx(variable[3])(variable[3]) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[3] = CALL_control_flow___ControlFlowContext___set_variables(variable[3])(variable[3]) /*ControlFlowContext::set_variables*/;
-  CALL_abstract_collection___SimpleCollection___add(variable[3])(variable[3],  variable[1] /*v*/) /*HashSet::add*/;
-  return_label6: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____stypes(variable[0]) /*VariableContext::_stypes*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___MapRead___has_key(variable[3])(variable[3],  variable[1] /*v*/) /*MapRead::has_key*/;
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_control_flow___VariableContext____stypes(variable[0]) /*VariableContext::_stypes*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_abstract_collection___MapRead_____bra(variable[3])(variable[3],  variable[1] /*v*/) /*MapRead::[]*/;
+    variable[2] = variable[3];
+    goto return_label18;
+  } else { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = CALL_syntax_base___Variable___stype( variable[1] /*v*/)( variable[1] /*v*/) /*Variable::stype*/;
+    variable[2] = variable[3];
+    goto return_label18;
+  }
+  return_label18: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[2];
 }
-void control_flow___ControlFlowVisitor___init(val_t  self, val_t  param0, val_t  param1, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 77, LOCATE_control_flow___ControlFlowVisitor___init};
-  val_t variable[4];
-  void **closurevariable = NULL;
+void control_flow___VariableContext___stype__eq(val_t  self, val_t  param0, val_t  param1) {
+  struct trace_t trace = {NULL, NULL, 76, LOCATE_control_flow___VariableContext___stype__eq};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
+  /* Register variable[2]: Local variable */
   variable[2] =  param1;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowVisitor].i]) return;
-  CALL_syntax_base___AbsSyntaxVisitor___init(variable[0])(variable[0], variable[1], variable[2], init_table /*YYY*/) /*AbsSyntaxVisitor::init*/;
-  return_label7: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowVisitor].i] = 1;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_control_flow___VariableContext____stypes(variable[0]) /*VariableContext::_stypes*/;
+  CALL_abstract_collection___Map_____braeq(variable[4])(variable[4],  variable[1] /*v*/,  variable[2] /*t*/) /*Map::[]=*/;
+  return_label19: while(false);
   tracehead = trace.prev;
   return;
 }
-val_t control_flow___ControlFlowContext___prev(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 81, LOCATE_control_flow___ControlFlowContext___prev};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowContext____prev( self) /*ControlFlowContext::_prev*/;
-}
-val_t control_flow___ControlFlowContext___unreash(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 84, LOCATE_control_flow___ControlFlowContext___unreash};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
+val_t control_flow___VariableContext___sub(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 92, LOCATE_control_flow___VariableContext___sub};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = NEW_SubVariableContext_control_flow___SubVariableContext___with_prev(variable[0],  variable[1] /*node*/) /*new SubVariableContext*/;
+  variable[2] = variable[3];
+  goto return_label20;
+  return_label20: while(false);
   tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowContext____unreash( self) /*ControlFlowContext::_unreash*/;
+  return variable[2];
 }
-void control_flow___ControlFlowContext___unreash__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 84, LOCATE_control_flow___ControlFlowContext___unreash__eq};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
+val_t control_flow___VariableContext___sub_with(val_t  self, val_t  param0, val_t  param1, val_t  param2) {
+  struct trace_t trace = {NULL, NULL, 98, LOCATE_control_flow___VariableContext___sub_with};
+  val_t variable[7];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  ATTR_control_flow___ControlFlowContext____unreash( self) /*ControlFlowContext::_unreash*/ =  param0;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
+  /* Register variable[4]: Method return value and escape marker */
+  /* Register variable[5]: Local variable */
+  /* Register variable[6]: Result */
+  variable[6] = CALL_control_flow___VariableContext___sub(variable[0])(variable[0],  variable[1] /*node*/) /*VariableContext::sub*/;
+  variable[5] = variable[6];
+  CALL_control_flow___VariableContext___stype__eq( variable[5] /*ctx*/)( variable[5] /*ctx*/,  variable[2] /*v*/,  variable[3] /*t*/) /*VariableContext::stype=*/;
+  variable[4] =  variable[5] /*ctx*/;
+  goto return_label21;
+  return_label21: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[4];
 }
-val_t control_flow___ControlFlowContext___already_unreash(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 87, LOCATE_control_flow___ControlFlowContext___already_unreash};
+val_t control_flow___VariableContext___node(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 109, LOCATE_control_flow___VariableContext___node};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
   tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowContext____already_unreash( self) /*ControlFlowContext::_already_unreash*/;
+  return ATTR_control_flow___VariableContext____node( self) /*VariableContext::_node*/;
 }
-void control_flow___ControlFlowContext___already_unreash__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 87, LOCATE_control_flow___ControlFlowContext___already_unreash__eq};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
+void control_flow___VariableContext___init(val_t  self, val_t  param0, val_t  param1, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 112, LOCATE_control_flow___VariableContext___init};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  ATTR_control_flow___ControlFlowContext____already_unreash( self) /*ControlFlowContext::_already_unreash*/ =  param0;
+  /* Register variable[0]: Local variable */
+  variable[0] =  self;
+  /* Register variable[1]: Local variable */
+  variable[1] =  param0;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_VariableContext].i]) return;
+  /* Register variable[3]: Method return value and escape marker */
+  ATTR_control_flow___VariableContext____visitor(variable[0]) /*VariableContext::_visitor*/ =  variable[1] /*visitor*/;
+  ATTR_control_flow___VariableContext____node(variable[0]) /*VariableContext::_node*/ =  variable[2] /*node*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_HashMap_hash___HashMap___init() /*new HashMap[Symbol, Variable]*/;
+  ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/ = variable[4];
+  return_label22: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_VariableContext].i] = 1;
   tracehead = trace.prev;
   return;
 }
-val_t control_flow___ControlFlowContext___base_block(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 91, LOCATE_control_flow___ControlFlowContext___base_block};
+val_t control_flow___VariableContext___unreash(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 119, LOCATE_control_flow___VariableContext___unreash};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
   tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowContext____base_block( self) /*ControlFlowContext::_base_block*/;
+  return ATTR_control_flow___VariableContext____unreash( self) /*VariableContext::_unreash*/;
 }
-void control_flow___ControlFlowContext___base_block__eq(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 91, LOCATE_control_flow___ControlFlowContext___base_block__eq};
+void control_flow___VariableContext___unreash__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 119, LOCATE_control_flow___VariableContext___unreash__eq};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  ATTR_control_flow___ControlFlowContext____base_block( self) /*ControlFlowContext::_base_block*/ =  param0;
+  ATTR_control_flow___VariableContext____unreash( self) /*VariableContext::_unreash*/ =  param0;
   tracehead = trace.prev;
   return;
 }
-val_t control_flow___ControlFlowContext___set_variables(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 94, LOCATE_control_flow___ControlFlowContext___set_variables};
+val_t control_flow___VariableContext___already_unreash(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 122, LOCATE_control_flow___VariableContext___already_unreash};
   val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  tracehead = trace.prev;
-  return ATTR_control_flow___ControlFlowContext____set_variables( self) /*ControlFlowContext::_set_variables*/;
-}
-val_t control_flow___ControlFlowContext___is_set(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 97, LOCATE_control_flow___ControlFlowContext___is_set};
-  val_t variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = ATTR_control_flow___ControlFlowContext____set_variables(variable[3]) /*ControlFlowContext::_set_variables*/;
-  variable[3] = CALL_abstract_collection___Collection___has(variable[3])(variable[3],  variable[1] /*v*/) /*HashSet::has*/;
-  variable[4] = variable[3];
-  if (!UNTAG_Bool(variable[4])) { /* or */
-    variable[4] = variable[0];
-    variable[4] = ATTR_control_flow___ControlFlowContext____prev(variable[4]) /*ControlFlowContext::_prev*/;
-    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[4] ==  NIT_NULL /*null*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  NIT_NULL /*null*/) /*Object::==*/)))))));
-    variable[5] = variable[4];
-    if (UNTAG_Bool(variable[5])) { /* and */
-      variable[5] = variable[0];
-      variable[5] = ATTR_control_flow___ControlFlowContext____prev(variable[5]) /*ControlFlowContext::_prev*/;
-      variable[5] = CALL_control_flow___ControlFlowContext___is_set(variable[5])(variable[5],  variable[1] /*v*/) /*ControlFlowContext::is_set*/;
-    }
-    variable[4] = variable[5];
-  }
-  variable[3] = variable[4];
-  variable[2] = variable[3];
-  goto return_label8;
-  return_label8: while(false);
-  tracehead = trace.prev;
-  return variable[2];
-}
-val_t control_flow___ControlFlowContext___sub(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 103, LOCATE_control_flow___ControlFlowContext___sub};
-  val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[2] = variable[0];
-  variable[3] = NEW_ControlFlowContext_control_flow___ControlFlowContext___with_prev(variable[2]); /*new ControlFlowContext*/
-  variable[2] = variable[3];
-  variable[1] = variable[2];
-  goto return_label9;
-  return_label9: while(false);
   tracehead = trace.prev;
-  return variable[1];
+  return ATTR_control_flow___VariableContext____already_unreash( self) /*VariableContext::_already_unreash*/;
 }
-void control_flow___ControlFlowContext___init(val_t  self, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 108, LOCATE_control_flow___ControlFlowContext___init};
-  val_t variable[2];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowContext].i]) return;
-  return_label10: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowContext].i] = 1;
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___ControlFlowContext___with_prev(val_t  self, val_t  param0, int* init_table) {
-  struct trace_t trace = {NULL, NULL, 112, LOCATE_control_flow___ControlFlowContext___with_prev};
-  val_t variable[5];
-  void **closurevariable = NULL;
+void control_flow___VariableContext___already_unreash__eq(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 122, LOCATE_control_flow___VariableContext___already_unreash__eq};
+  val_t *variable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowContext].i]) return;
-  variable[3] = variable[0];
-  ATTR_control_flow___ControlFlowContext____prev(variable[3]) /*ControlFlowContext::_prev*/ =  variable[1] /*p*/;
-  variable[3] = variable[0];
-  variable[4] = CALL_control_flow___ControlFlowContext___unreash( variable[1] /*p*/)( variable[1] /*p*/) /*ControlFlowContext::unreash*/;
-  ATTR_control_flow___ControlFlowContext____unreash(variable[3]) /*ControlFlowContext::_unreash*/ = variable[4];
-  variable[3] = variable[0];
-  variable[4] = CALL_control_flow___ControlFlowContext___already_unreash( variable[1] /*p*/)( variable[1] /*p*/) /*ControlFlowContext::already_unreash*/;
-  ATTR_control_flow___ControlFlowContext____already_unreash(variable[3]) /*ControlFlowContext::_already_unreash*/ = variable[4];
-  variable[3] = variable[0];
-  variable[4] = CALL_control_flow___ControlFlowContext___base_block( variable[1] /*p*/)( variable[1] /*p*/) /*ControlFlowContext::base_block*/;
-  ATTR_control_flow___ControlFlowContext____base_block(variable[3]) /*ControlFlowContext::_base_block*/ = variable[4];
-  return_label11: while(false);
-  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_ControlFlowContext].i] = 1;
+  ATTR_control_flow___VariableContext____already_unreash( self) /*VariableContext::_already_unreash*/ =  param0;
   tracehead = trace.prev;
   return;
 }
-void control_flow___PNode___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 124, LOCATE_control_flow___PNode___accept_control_flow};
-  val_t variable[4];
-  void **closurevariable = NULL;
+val_t control_flow___VariableContext___set_variables(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 126, LOCATE_control_flow___VariableContext___set_variables};
+  val_t *variable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  CALL_syntax_base___PNode___accept_abs_syntax_visitor(variable[3])(variable[3],  variable[1] /*v*/) /*PNode::accept_abs_syntax_visitor*/;
-  return_label12: while(false);
   tracehead = trace.prev;
-  return;
+  return ATTR_control_flow___VariableContext____set_variables( self) /*VariableContext::_set_variables*/;
 }
-void control_flow___AMethPropdef___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 131, LOCATE_control_flow___AMethPropdef___accept_control_flow};
+val_t control_flow___VariableContext___is_set(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 129, LOCATE_control_flow___VariableContext___is_set};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = NEW_ControlFlowContext_control_flow___ControlFlowContext___init(); /*new ControlFlowContext*/
-  CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::control_flow_ctx=*/;
-  CALL_SUPER_control_flow___AMethPropdef___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AMethPropdef::accept_control_flow*/;
-  return_label13: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AConcreteMethPropdef___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 139, LOCATE_control_flow___AConcreteMethPropdef___accept_control_flow};
-  val_t variable[5];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___AConcreteMethPropdef___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AConcreteMethPropdef::accept_control_flow*/;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[3] = CALL_control_flow___ControlFlowContext___unreash(variable[3])(variable[3]) /*ControlFlowContext::unreash*/;
-  variable[3] = TAG_Bool((variable[3])==( TAG_Bool(false)));
-  variable[4] = variable[3];
-  if (UNTAG_Bool(variable[4])) { /* and */
-    variable[4] = variable[0];
-    variable[4] = CALL_syntax_base___AMethPropdef___method(variable[4])(variable[4]) /*AMethPropdef::method*/;
-    variable[4] = CALL_static_type___MMLocalProperty___signature(variable[4])(variable[4]) /*MMLocalProperty::signature*/;
-    variable[4] = CALL_static_type___MMSignature___return_type(variable[4])(variable[4]) /*MMSignature::return_type*/;
-    variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[4] ==  NIT_NULL /*null*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  NIT_NULL /*null*/) /*Object::==*/)))))));
-  }
-  variable[3] = variable[4];
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[4] = NEW_String_string___String___with_native(BOX_NativeString("Control error: Reached end of function (a 'return' with a value was expected)."), TAG_Int(78)); /*new String*/
-    CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*AbsSyntaxVisitor::error*/;
-  }
-  return_label14: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____set_variables(variable[0]) /*VariableContext::_set_variables*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___Collection___has(variable[3])(variable[3],  variable[1] /*v*/) /*HashSet::has*/;
+  variable[2] = variable[3];
+  goto return_label23;
+  return_label23: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[2];
 }
-void control_flow___AVardeclExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 149, LOCATE_control_flow___AVardeclExpr___accept_control_flow};
-  val_t variable[4];
-  void **closurevariable = NULL;
+void control_flow___VariableContext___merge(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 135, LOCATE_control_flow___VariableContext___merge};
+  val_t variable[9];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  CALL_SUPER_control_flow___AVardeclExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AVardeclExpr::accept_control_flow*/;
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_nodes___AVardeclExpr___n_expr(variable[3])(variable[3]) /*AVardeclExpr::n_expr*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = CALL_control_flow___VariableContext___unreash( variable[1] /*ctx*/)( variable[1] /*ctx*/) /*VariableContext::unreash*/;
   if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = CALL_syntax_base___AVardeclExpr___variable(variable[3])(variable[3]) /*AVardeclExpr::variable*/;
-    CALL_control_flow___ControlFlowVisitor___mark_is_set( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::mark_is_set*/;
+    CALL_control_flow___VariableContext___unreash__eq(variable[0])(variable[0],  TAG_Bool(true)) /*VariableContext::unreash=*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___VariableContext___already_unreash( variable[1] /*ctx*/)( variable[1] /*ctx*/) /*VariableContext::already_unreash*/;
+    if (UNTAG_Bool(variable[3])) { /*if*/
+      CALL_control_flow___VariableContext___already_unreash__eq(variable[0])(variable[0],  TAG_Bool(true)) /*VariableContext::already_unreash=*/;
+    }
+    goto return_label24;
   }
-  return_label15: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___ABlockExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 157, LOCATE_control_flow___ABlockExpr___accept_control_flow};
-  val_t variable[8];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_nodes___ABlockExpr___n_expr(variable[3])(variable[3]) /*ABlockExpr::n_expr*/;
-  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*List::iterator*/;
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/;
+  /* Register variable[3]: For iterator */
+  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*Collection::iterator*/;
   while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ListIterator::is_ok*/;
+    /* Register variable[4]: For 'is_ok' result */
+    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*Iterator::is_ok*/;
     if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ListIterator::item*/;
+    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[5]: Local variable */
     variable[5] = variable[4];
-    variable[6] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[6] = CALL_control_flow___ControlFlowContext___unreash(variable[6])(variable[6]) /*ControlFlowContext::unreash*/;
-    variable[7] = variable[6];
-    if (UNTAG_Bool(variable[7])) { /* and */
-      variable[7] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-      variable[7] = CALL_control_flow___ControlFlowContext___already_unreash(variable[7])(variable[7]) /*ControlFlowContext::already_unreash*/;
-      variable[7] =  TAG_Bool(!UNTAG_Bool(variable[7]));
+    /* Register variable[6]: Result */
+    variable[6] = CALL_control_flow___VariableContext___is_set(variable[0])(variable[0],  variable[5] /*v*/) /*VariableContext::is_set*/;
+    variable[6] =  TAG_Bool(!UNTAG_Bool(variable[6])) /* Ensure var: Left 'and' operand*/;
+    if (UNTAG_Bool(variable[6])) { /* and */
+      /* Register variable[6]: Result */
+      variable[6] = CALL_control_flow___VariableContext___is_set( variable[1] /*ctx*/)( variable[1] /*ctx*/,  variable[5] /*v*/) /*VariableContext::is_set*/;
     }
-    variable[6] = variable[7];
+    /* Register variable[6]: Result */
     if (UNTAG_Bool(variable[6])) { /*if*/
-      variable[6] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-      CALL_control_flow___ControlFlowContext___already_unreash__eq(variable[6])(variable[6],  TAG_Bool(true)) /*ControlFlowContext::already_unreash=*/;
-      variable[6] = NEW_String_string___String___with_native(BOX_NativeString("Warning: unreachable statement."), TAG_Int(31)); /*new String*/
-      CALL_syntax_base___AbsSyntaxVisitor___warning( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*e*/, variable[6]) /*AbsSyntaxVisitor::warning*/;
+      CALL_control_flow___VariableContext___mark_is_set(variable[0])(variable[0],  variable[5] /*v*/) /*VariableContext::mark_is_set*/;
     }
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*e*/) /*ControlFlowVisitor::visit*/;
-    continue_17: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ListIterator::next*/;
-  }
-  break_17: while(0);
-  return_label16: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AReturnExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 170, LOCATE_control_flow___AReturnExpr___accept_control_flow};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___AReturnExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AReturnExpr::accept_control_flow*/;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  CALL_control_flow___ControlFlowContext___unreash__eq(variable[3])(variable[3],  TAG_Bool(true)) /*ControlFlowContext::unreash=*/;
-  return_label18: while(false);
-  tracehead = trace.prev;
-  return;
-}
-val_t control_flow___ABlockControler___block(val_t  self) {
-  struct trace_t trace = {NULL, NULL, 179, LOCATE_control_flow___ABlockControler___block};
-  val_t *variable = NULL;
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  tracehead = trace.prev;
-  return ATTR_control_flow___ABlockControler____block( self) /*ABlockControler::_block*/;
-}
-void control_flow___ABreakExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 184, LOCATE_control_flow___ABreakExpr___accept_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___ABreakExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super ABreakExpr::accept_control_flow*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[4] = CALL_control_flow___ControlFlowContext___base_block(variable[4])(variable[4]) /*ControlFlowContext::base_block*/;
-  variable[3] = variable[4];
-  variable[4] = TAG_Bool(( variable[3] /*block*/ ==  NIT_NULL /*null*/) || (( variable[3] /*block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*block*/)( variable[3] /*block*/,  NIT_NULL /*null*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    variable[5] = NEW_String_string___String___with_native(BOX_NativeString("Syntax Error: 'break' statment outside block."), TAG_Int(45)); /*new String*/
-    CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[4], variable[5]) /*AbsSyntaxVisitor::error*/;
-    goto return_label19;
-  }
-  variable[4] = variable[0];
-  ATTR_control_flow___ABlockControler____block(variable[4]) /*ABlockControler::_block*/ =  variable[3] /*block*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  CALL_control_flow___ControlFlowContext___unreash__eq(variable[4])(variable[4],  TAG_Bool(true)) /*ControlFlowContext::unreash=*/;
-  return_label19: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AContinueExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 198, LOCATE_control_flow___AContinueExpr___accept_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___AContinueExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AContinueExpr::accept_control_flow*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[4] = CALL_control_flow___ControlFlowContext___base_block(variable[4])(variable[4]) /*ControlFlowContext::base_block*/;
-  variable[3] = variable[4];
-  variable[4] = TAG_Bool(( variable[3] /*block*/ ==  NIT_NULL /*null*/) || (( variable[3] /*block*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[3] /*block*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[3] /*block*/, NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[3] /*block*/)( variable[3] /*block*/,  NIT_NULL /*null*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    variable[4] = variable[0];
-    variable[5] = NEW_String_string___String___with_native(BOX_NativeString("Syntax Error: 'continue' outside block."), TAG_Int(39)); /*new String*/
-    CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[4], variable[5]) /*AbsSyntaxVisitor::error*/;
-    goto return_label20;
-  }
-  variable[4] = variable[0];
-  ATTR_control_flow___ABlockControler____block(variable[4]) /*ABlockControler::_block*/ =  variable[3] /*block*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  CALL_control_flow___ControlFlowContext___unreash__eq(variable[4])(variable[4],  TAG_Bool(true)) /*ControlFlowContext::unreash=*/;
-  return_label20: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AAbortExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 212, LOCATE_control_flow___AAbortExpr___accept_control_flow};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___AAbortExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AAbortExpr::accept_control_flow*/;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  CALL_control_flow___ControlFlowContext___unreash__eq(variable[3])(variable[3],  TAG_Bool(true)) /*ControlFlowContext::unreash=*/;
-  return_label21: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AClosureCallExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 220, LOCATE_control_flow___AClosureCallExpr___accept_control_flow};
-  val_t variable[4];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  CALL_SUPER_control_flow___AClosureCallExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AClosureCallExpr::accept_control_flow*/;
-  variable[3] = variable[0];
-  variable[3] = CALL_syntax_base___AClosureCallExpr___variable(variable[3])(variable[3]) /*AClosureCallExpr::variable*/;
-  variable[3] = CALL_syntax_base___ClosureVariable___closure(variable[3])(variable[3]) /*ClosureVariable::closure*/;
-  variable[3] = CALL_static_type___MMClosure___is_break(variable[3])(variable[3]) /*MMClosure::is_break*/;
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    CALL_control_flow___ControlFlowContext___unreash__eq(variable[3])(variable[3],  TAG_Bool(true)) /*ControlFlowContext::unreash=*/;
+    /* Register variable[6]: Local variable */
+    /* Register variable[7]: Result */
+    variable[7] = CALL_control_flow___VariableContext___stype(variable[0])(variable[0],  variable[5] /*v*/) /*VariableContext::stype*/;
+    variable[6] = variable[7];
+    /* Register variable[7]: Local variable */
+    /* Register variable[8]: Result */
+    variable[8] = CALL_control_flow___VariableContext___stype( variable[1] /*ctx*/)( variable[1] /*ctx*/,  variable[5] /*v*/) /*VariableContext::stype*/;
+    variable[7] = variable[8];
+    /* Register variable[8]: Result */
+    variable[8] = TAG_Bool(!UNTAG_Bool(TAG_Bool(( variable[7] /*s1*/ ==  variable[6] /*s*/) || (( variable[7] /*s1*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[7] /*s1*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[7] /*s1*/, variable[6] /*s*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[7] /*s1*/)( variable[7] /*s1*/,  variable[6] /*s*/) /*Object::==*/)))))));
+    if (UNTAG_Bool(variable[8])) { /*if*/
+      CALL_control_flow___VariableContext___stype__eq(variable[0])(variable[0],  variable[5] /*v*/,  variable[7] /*s1*/) /*VariableContext::stype=*/;
+    }
+    continue_25: while(0);
+    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*Iterator::next*/;
   }
-  return_label22: while(false);
+  break_25: while(0);
+  return_label24: while(false);
   tracehead = trace.prev;
   return;
 }
-void control_flow___AIfExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 228, LOCATE_control_flow___AIfExpr___accept_control_flow};
-  val_t variable[9];
-  void **closurevariable = NULL;
+void control_flow___VariableContext___merge2(val_t  self, val_t  param0, val_t  param1, val_t  param2) {
+  struct trace_t trace = {NULL, NULL, 153, LOCATE_control_flow___VariableContext___merge2};
+  val_t variable[12];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_nodes___AIfExpr___n_expr(variable[3])(variable[3]) /*AIfExpr::n_expr*/;
-  CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::visit*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[3] = variable[4];
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[4] = CALL_control_flow___ControlFlowContext___sub(variable[4])(variable[4]) /*ControlFlowContext::sub*/;
-  CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*ControlFlowVisitor::control_flow_ctx=*/;
-  variable[4] = variable[0];
-  variable[4] = CALL_parser_nodes___AIfExpr___n_then(variable[4])(variable[4]) /*AIfExpr::n_then*/;
-  CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*ControlFlowVisitor::visit*/;
-  variable[4] = variable[0];
-  variable[4] = CALL_parser_nodes___AIfExpr___n_else(variable[4])(variable[4]) /*AIfExpr::n_else*/;
-  variable[4] = TAG_Bool((variable[4] ==  NIT_NULL /*null*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  NIT_NULL /*null*/) /*Object::==*/)))));
-  if (UNTAG_Bool(variable[4])) { /*if*/
-    CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/,  variable[3] /*old_control_flow_ctx*/) /*ControlFlowVisitor::control_flow_ctx=*/;
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  /* Register variable[3]: Local variable */
+  variable[3] =  param2;
+  /* Register variable[4]: Method return value and escape marker */
+  /* Register variable[5]: Result */
+  variable[5] = CALL_control_flow___VariableContext___unreash( variable[1] /*ctx1*/)( variable[1] /*ctx1*/) /*VariableContext::unreash*/;
+  if (UNTAG_Bool(variable[5])) { /*if*/
+    CALL_control_flow___VariableContext___merge(variable[0])(variable[0],  variable[2] /*ctx2*/) /*VariableContext::merge*/;
   } else { /*if*/
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[4] = variable[5];
-    variable[5] = CALL_control_flow___ControlFlowContext___sub( variable[3] /*old_control_flow_ctx*/)( variable[3] /*old_control_flow_ctx*/) /*ControlFlowContext::sub*/;
-    CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[5]) /*ControlFlowVisitor::control_flow_ctx=*/;
-    variable[5] = variable[0];
-    variable[5] = CALL_parser_nodes___AIfExpr___n_else(variable[5])(variable[5]) /*AIfExpr::n_else*/;
-    CALL_parser_prod___Visitor___visit( variable[1] /*v*/)( variable[1] /*v*/, variable[5]) /*ControlFlowVisitor::visit*/;
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[5] = CALL_control_flow___ControlFlowContext___unreash(variable[5])(variable[5]) /*ControlFlowContext::unreash*/;
-    variable[6] = variable[5];
-    if (UNTAG_Bool(variable[6])) { /* and */
-      variable[6] = CALL_control_flow___ControlFlowContext___unreash( variable[4] /*then_control_flow_ctx*/)( variable[4] /*then_control_flow_ctx*/) /*ControlFlowContext::unreash*/;
-    }
-    variable[5] = variable[6];
-    CALL_control_flow___ControlFlowContext___unreash__eq( variable[3] /*old_control_flow_ctx*/)( variable[3] /*old_control_flow_ctx*/, variable[5]) /*ControlFlowContext::unreash=*/;
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[5] = CALL_control_flow___ControlFlowContext___unreash(variable[5])(variable[5]) /*ControlFlowContext::unreash*/;
+    /* Register variable[5]: Result */
+    variable[5] = CALL_control_flow___VariableContext___unreash( variable[2] /*ctx2*/)( variable[2] /*ctx2*/) /*VariableContext::unreash*/;
     if (UNTAG_Bool(variable[5])) { /*if*/
-      CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/,  variable[4] /*then_control_flow_ctx*/) /*ControlFlowVisitor::control_flow_ctx=*/;
+      CALL_control_flow___VariableContext___merge(variable[0])(variable[0],  variable[1] /*ctx1*/) /*VariableContext::merge*/;
     }
-    variable[5] = CALL_control_flow___ControlFlowContext___unreash( variable[4] /*then_control_flow_ctx*/)( variable[4] /*then_control_flow_ctx*/) /*ControlFlowContext::unreash*/;
-    if (UNTAG_Bool(variable[5])) { /*if*/
-      variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-      variable[4] = variable[5] /*then_control_flow_ctx=*/;
+  }
+  /* Register variable[5]: Result */
+  variable[5] = ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/;
+  /* Register variable[5]: For iterator */
+  variable[5] = CALL_abstract_collection___Collection___iterator(variable[5])(variable[5]) /*Collection::iterator*/;
+  while (true) { /*for*/
+    /* Register variable[6]: For 'is_ok' result */
+    variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
+    if (!UNTAG_Bool(variable[6])) break; /*for*/
+    variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/ /* Ensure var: For item*/;
+    /* Register variable[7]: Local variable */
+    variable[7] = variable[6];
+    /* Register variable[8]: Result */
+    variable[8] = CALL_control_flow___VariableContext___is_set(variable[0])(variable[0],  variable[7] /*v*/) /*VariableContext::is_set*/;
+    variable[8] =  TAG_Bool(!UNTAG_Bool(variable[8])) /* Ensure var: Left 'and' operand*/;
+    if (UNTAG_Bool(variable[8])) { /* and */
+      /* Register variable[8]: Result */
+      variable[8] = CALL_control_flow___VariableContext___is_set( variable[1] /*ctx1*/)( variable[1] /*ctx1*/,  variable[7] /*v*/) /*VariableContext::is_set*/;
+    }
+    /* Register variable[8]: Result */
+    /* Ensure var variable[8]: Left 'and' operand*/
+    if (UNTAG_Bool(variable[8])) { /* and */
+      /* Register variable[8]: Result */
+      variable[8] = CALL_control_flow___VariableContext___is_set( variable[2] /*ctx2*/)( variable[2] /*ctx2*/,  variable[7] /*v*/) /*VariableContext::is_set*/;
+    }
+    /* Register variable[8]: Result */
+    if (UNTAG_Bool(variable[8])) { /*if*/
+      CALL_control_flow___VariableContext___mark_is_set(variable[0])(variable[0],  variable[7] /*v*/) /*VariableContext::mark_is_set*/;
     }
-    variable[5] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[5] = CALL_control_flow___ControlFlowContext___set_variables(variable[5])(variable[5]) /*ControlFlowContext::set_variables*/;
-    variable[5] = CALL_abstract_collection___Collection___iterator(variable[5])(variable[5]) /*HashSet::iterator*/;
-    while (true) { /*for*/
-      variable[6] = CALL_abstract_collection___Iterator___is_ok(variable[5])(variable[5]) /*Iterator::is_ok*/;
-      if (!UNTAG_Bool(variable[6])) break; /*for*/
-      variable[6] = CALL_abstract_collection___Iterator___item(variable[5])(variable[5]) /*Iterator::item*/;
-      variable[7] = variable[6];
-      variable[8] = CALL_control_flow___ControlFlowContext___is_set( variable[4] /*then_control_flow_ctx*/)( variable[4] /*then_control_flow_ctx*/,  variable[7] /*variable*/) /*ControlFlowContext::is_set*/;
-      if (UNTAG_Bool(variable[8])) { /*if*/
-        variable[8] = CALL_control_flow___ControlFlowContext___set_variables( variable[3] /*old_control_flow_ctx*/)( variable[3] /*old_control_flow_ctx*/) /*ControlFlowContext::set_variables*/;
-        CALL_abstract_collection___SimpleCollection___add(variable[8])(variable[8],  variable[7] /*variable*/) /*HashSet::add*/;
+    /* Register variable[8]: Local variable */
+    /* Register variable[9]: Result */
+    variable[9] = CALL_control_flow___VariableContext___stype(variable[0])(variable[0],  variable[7] /*v*/) /*VariableContext::stype*/;
+    variable[8] = variable[9];
+    /* Register variable[9]: Local variable */
+    /* Register variable[10]: Result */
+    variable[10] = CALL_control_flow___VariableContext___stype( variable[1] /*ctx1*/)( variable[1] /*ctx1*/,  variable[7] /*v*/) /*VariableContext::stype*/;
+    variable[9] = variable[10];
+    /* Register variable[10]: Local variable */
+    /* Register variable[11]: Result */
+    variable[11] = CALL_control_flow___VariableContext___stype( variable[2] /*ctx2*/)( variable[2] /*ctx2*/,  variable[7] /*v*/) /*VariableContext::stype*/;
+    variable[10] = variable[11];
+    /* Register variable[11]: Result */
+    variable[11] = TAG_Bool(( variable[9] /*s1*/ ==  variable[8] /*s*/) || (( variable[9] /*s1*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[9] /*s1*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[9] /*s1*/, variable[8] /*s*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[9] /*s1*/)( variable[9] /*s1*/,  variable[8] /*s*/) /*Object::==*/)))));
+    /* Ensure var variable[11]: Left 'and' operand*/
+    if (UNTAG_Bool(variable[11])) { /* and */
+      /* Register variable[11]: Result */
+      variable[11] = TAG_Bool(( variable[10] /*s2*/ ==  variable[8] /*s*/) || (( variable[10] /*s2*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[10] /*s2*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[10] /*s2*/, variable[8] /*s*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[10] /*s2*/)( variable[10] /*s2*/,  variable[8] /*s*/) /*Object::==*/)))));
+    }
+    /* Register variable[11]: Result */
+    if (UNTAG_Bool(variable[11])) { /*if*/
+    } else { /*if*/
+      /* Register variable[11]: Result */
+      variable[11] = TAG_Bool(( variable[9] /*s1*/ ==  variable[10] /*s2*/) || (( variable[9] /*s1*/ != NIT_NULL) && ((CALL_kernel___Object_____eqeq( variable[9] /*s1*/)==kernel___Object_____eqeq)?(IS_EQUAL_NN( variable[9] /*s1*/, variable[10] /*s2*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq( variable[9] /*s1*/)( variable[9] /*s1*/,  variable[10] /*s2*/) /*Object::==*/)))));
+      if (UNTAG_Bool(variable[11])) { /*if*/
+        CALL_control_flow___VariableContext___stype__eq(variable[0])(variable[0],  variable[7] /*v*/,  variable[9] /*s1*/) /*VariableContext::stype=*/;
+      } else { /*if*/
+        /* Register variable[11]: Result */
+        variable[11] = CALL_static_type___MMType_____l( variable[9] /*s1*/)( variable[9] /*s1*/,  variable[10] /*s2*/) /*MMType::<*/;
+        if (UNTAG_Bool(variable[11])) { /*if*/
+          CALL_control_flow___VariableContext___stype__eq(variable[0])(variable[0],  variable[7] /*v*/,  variable[10] /*s2*/) /*VariableContext::stype=*/;
+        } else { /*if*/
+          /* Register variable[11]: Result */
+          variable[11] = CALL_static_type___MMType_____l( variable[10] /*s2*/)( variable[10] /*s2*/,  variable[9] /*s1*/) /*MMType::<*/;
+          if (UNTAG_Bool(variable[11])) { /*if*/
+            CALL_control_flow___VariableContext___stype__eq(variable[0])(variable[0],  variable[7] /*v*/,  variable[9] /*s1*/) /*VariableContext::stype=*/;
+          } else { /*if*/
+            /* Register variable[11]: Result */
+            variable[11] = CALL_control_flow___VariableContext___stype( variable[3] /*basectx*/)( variable[3] /*basectx*/,  variable[7] /*v*/) /*VariableContext::stype*/;
+            CALL_control_flow___VariableContext___stype__eq(variable[0])(variable[0],  variable[7] /*v*/, variable[11]) /*VariableContext::stype=*/;
+          }
+        }
       }
-      continue_24: while(0);
-      CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
     }
-    break_24: while(0);
-    CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/,  variable[3] /*old_control_flow_ctx*/) /*ControlFlowVisitor::control_flow_ctx=*/;
+    continue_27: while(0);
+    CALL_abstract_collection___Iterator___next(variable[5])(variable[5]) /*Iterator::next*/;
   }
-  return_label23: while(false);
-  tracehead = trace.prev;
-  return;
-}
-void control_flow___AControlableBlock___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 265, LOCATE_control_flow___AControlableBlock___accept_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
-  trace.prev = tracehead; tracehead = &trace;
-  trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[3] = variable[4];
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[4] = CALL_control_flow___ControlFlowContext___sub(variable[4])(variable[4]) /*ControlFlowContext::sub*/;
-  CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*ControlFlowVisitor::control_flow_ctx=*/;
-  variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[5] = variable[0];
-  CALL_control_flow___ControlFlowContext___base_block__eq(variable[4])(variable[4], variable[5]) /*ControlFlowContext::base_block=*/;
-  CALL_SUPER_control_flow___AControlableBlock___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AControlableBlock::accept_control_flow*/;
-  variable[4] = variable[0];
-  CALL_control_flow___AControlableBlock___check_control_flow(variable[4])(variable[4],  variable[1] /*v*/) /*AControlableBlock::check_control_flow*/;
-  CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/,  variable[3] /*old_control_flow_ctx*/) /*ControlFlowVisitor::control_flow_ctx=*/;
-  return_label25: while(false);
+  break_27: while(0);
+  return_label26: while(false);
   tracehead = trace.prev;
   return;
 }
-void control_flow___AControlableBlock___check_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 283, LOCATE_control_flow___AControlableBlock___check_control_flow};
-  val_t variable[3];
-  void **closurevariable = NULL;
+void control_flow___RootVariableContext___init(val_t  self, val_t  param0, val_t  param1, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 198, LOCATE_control_flow___RootVariableContext___init};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  return_label26: while(false);
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_RootVariableContext].i]) return;
+  /* Register variable[3]: Method return value and escape marker */
+  CALL_control_flow___VariableContext___init(variable[0])(variable[0],  variable[1] /*visitor*/,  variable[2] /*node*/, init_table /*YYY*/) /*VariableContext::init*/;
+  /* Register variable[4]: Result */
+  variable[4] = NEW_HashSet_hash___HashSet___init() /*new HashSet[Variable]*/;
+  ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/ = variable[4];
+  return_label28: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_RootVariableContext].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void control_flow___AVarExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 295, LOCATE_control_flow___AVarExpr___accept_control_flow};
-  val_t variable[5];
-  void **closurevariable = NULL;
+val_t control_flow___SubVariableContext_____bra(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 209, LOCATE_control_flow___SubVariableContext_____bra};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  CALL_SUPER_control_flow___AVarExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AVarExpr::accept_control_flow*/;
-  variable[3] = variable[0];
-  variable[4] = variable[0];
-  variable[4] = CALL_syntax_base___AVarFormExpr___variable(variable[4])(variable[4]) /*AVarFormExpr::variable*/;
-  CALL_control_flow___ControlFlowVisitor___check_is_set( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*ControlFlowVisitor::check_is_set*/;
-  return_label27: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___MapRead___has_key(variable[3])(variable[3],  variable[1] /*s*/) /*MapRead::has_key*/;
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_control_flow___VariableContext____dico(variable[0]) /*VariableContext::_dico*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_abstract_collection___MapRead_____bra(variable[3])(variable[3],  variable[1] /*s*/) /*MapRead::[]*/;
+    variable[2] = variable[3];
+    goto return_label29;
+  } else { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___SubVariableContext___prev(variable[0])(variable[0]) /*SubVariableContext::prev*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___VariableContext_____bra(variable[3])(variable[3],  variable[1] /*s*/) /*VariableContext::[]*/;
+    variable[2] = variable[3];
+    goto return_label29;
+  }
+  return_label29: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[2];
 }
-void control_flow___AVarAssignExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 303, LOCATE_control_flow___AVarAssignExpr___accept_control_flow};
+val_t control_flow___SubVariableContext___stype(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 218, LOCATE_control_flow___SubVariableContext___stype};
   val_t variable[4];
-  void **closurevariable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  CALL_SUPER_control_flow___AVarAssignExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AVarAssignExpr::accept_control_flow*/;
-  variable[3] = variable[0];
-  variable[3] = CALL_syntax_base___AVarFormExpr___variable(variable[3])(variable[3]) /*AVarFormExpr::variable*/;
-  CALL_control_flow___ControlFlowVisitor___mark_is_set( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::mark_is_set*/;
-  return_label28: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____stypes(variable[0]) /*VariableContext::_stypes*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___MapRead___has_key(variable[3])(variable[3],  variable[1] /*v*/) /*MapRead::has_key*/;
+  if (UNTAG_Bool(variable[3])) { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_control_flow___VariableContext____stypes(variable[0]) /*VariableContext::_stypes*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_abstract_collection___MapRead_____bra(variable[3])(variable[3],  variable[1] /*v*/) /*MapRead::[]*/;
+    variable[2] = variable[3];
+    goto return_label30;
+  } else { /*if*/
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___SubVariableContext___prev(variable[0])(variable[0]) /*SubVariableContext::prev*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___VariableContext___stype(variable[3])(variable[3],  variable[1] /*v*/) /*VariableContext::stype*/;
+    variable[2] = variable[3];
+    goto return_label30;
+  }
+  return_label30: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[2];
 }
-void control_flow___AVarReassignExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 311, LOCATE_control_flow___AVarReassignExpr___accept_control_flow};
-  val_t variable[5];
-  void **closurevariable = NULL;
+val_t control_flow___SubVariableContext___is_set(val_t  self, val_t  param0) {
+  struct trace_t trace = {NULL, NULL, 234, LOCATE_control_flow___SubVariableContext___is_set};
+  val_t variable[4];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  CALL_SUPER_control_flow___AVarReassignExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AVarReassignExpr::accept_control_flow*/;
-  variable[3] = variable[0];
-  variable[4] = variable[0];
-  variable[4] = CALL_syntax_base___AVarFormExpr___variable(variable[4])(variable[4]) /*AVarFormExpr::variable*/;
-  CALL_control_flow___ControlFlowVisitor___check_is_set( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*ControlFlowVisitor::check_is_set*/;
-  variable[3] = variable[0];
-  variable[3] = CALL_syntax_base___AVarFormExpr___variable(variable[3])(variable[3]) /*AVarFormExpr::variable*/;
-  CALL_control_flow___ControlFlowVisitor___mark_is_set( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::mark_is_set*/;
-  return_label29: while(false);
+  /* Register variable[2]: Method return value and escape marker */
+  /* Register variable[3]: Result */
+  variable[3] = ATTR_control_flow___VariableContext____set_variables(variable[0]) /*VariableContext::_set_variables*/;
+  /* Register variable[3]: Result */
+  variable[3] = CALL_abstract_collection___Collection___has(variable[3])(variable[3],  variable[1] /*v*/) /*HashSet::has*/;
+  /* Ensure var variable[3]: Left 'or' operand*/
+  if (!UNTAG_Bool(variable[3])) { /* or */
+    /* Register variable[3]: Result */
+    variable[3] = ATTR_control_flow___SubVariableContext____prev(variable[0]) /*SubVariableContext::_prev*/;
+    /* Register variable[3]: Result */
+    variable[3] = CALL_control_flow___VariableContext___is_set(variable[3])(variable[3],  variable[1] /*v*/) /*VariableContext::is_set*/;
+  }
+  /* Register variable[3]: Result */
+  variable[2] = variable[3];
+  goto return_label31;
+  return_label31: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[2];
 }
-void control_flow___AClosureDecl___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 320, LOCATE_control_flow___AClosureDecl___accept_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
+val_t control_flow___SubVariableContext___prev(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 207, LOCATE_control_flow___SubVariableContext___prev};
+  val_t *variable = NULL;
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
-  variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = CALL_parser_nodes___AClosureDecl___n_expr(variable[3])(variable[3]) /*AClosureDecl::n_expr*/;
-  variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[3] = variable[4];
-    variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[4] = CALL_control_flow___ControlFlowContext___sub(variable[4])(variable[4]) /*ControlFlowContext::sub*/;
-    CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[4]) /*ControlFlowVisitor::control_flow_ctx=*/;
-    variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[5] = variable[0];
-    variable[5] = CALL_parser_nodes___AClosureDecl___n_expr(variable[5])(variable[5]) /*AClosureDecl::n_expr*/;
-    CALL_control_flow___ControlFlowContext___base_block__eq(variable[4])(variable[4], variable[5]) /*ControlFlowContext::base_block=*/;
-    CALL_SUPER_control_flow___AClosureDecl___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AClosureDecl::accept_control_flow*/;
-    variable[4] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-    variable[4] = CALL_control_flow___ControlFlowContext___unreash(variable[4])(variable[4]) /*ControlFlowContext::unreash*/;
-    variable[4] = TAG_Bool((variable[4])==( TAG_Bool(false)));
-    if (UNTAG_Bool(variable[4])) { /*if*/
-      variable[4] = variable[0];
-      variable[4] = CALL_syntax_base___PClosureDecl___variable(variable[4])(variable[4]) /*PClosureDecl::variable*/;
-      variable[4] = CALL_syntax_base___ClosureVariable___closure(variable[4])(variable[4]) /*ClosureVariable::closure*/;
-      variable[4] = CALL_static_type___MMClosure___signature(variable[4])(variable[4]) /*MMClosure::signature*/;
-      variable[4] = CALL_static_type___MMSignature___return_type(variable[4])(variable[4]) /*MMSignature::return_type*/;
-      variable[4] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[4] ==  NIT_NULL /*null*/) || ((variable[4] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[4])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[4], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[4])(variable[4],  NIT_NULL /*null*/) /*Object::==*/)))))));
-      if (UNTAG_Bool(variable[4])) { /*if*/
-        variable[4] = variable[0];
-        variable[5] = NEW_String_string___String___with_native(BOX_NativeString("Control error: Reached end of bloc (a 'continue' with a value was expected)."), TAG_Int(76)); /*new String*/
-        CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[4], variable[5]) /*AbsSyntaxVisitor::error*/;
-      } else { /*if*/
-        variable[4] = variable[0];
-        variable[4] = CALL_syntax_base___PClosureDecl___variable(variable[4])(variable[4]) /*PClosureDecl::variable*/;
-        variable[4] = CALL_syntax_base___ClosureVariable___closure(variable[4])(variable[4]) /*ClosureVariable::closure*/;
-        variable[4] = CALL_static_type___MMClosure___is_break(variable[4])(variable[4]) /*MMClosure::is_break*/;
-        if (UNTAG_Bool(variable[4])) { /*if*/
-          variable[4] = variable[0];
-          variable[5] = NEW_String_string___String___with_native(BOX_NativeString("Control error: Reached end of break bloc (an 'abort' was expected)."), TAG_Int(67)); /*new String*/
-          CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[4], variable[5]) /*AbsSyntaxVisitor::error*/;
-        }
-      }
-    }
-    CALL_control_flow___ControlFlowVisitor___control_flow_ctx__eq( variable[1] /*v*/)( variable[1] /*v*/,  variable[3] /*old_control_flow_ctx*/) /*ControlFlowVisitor::control_flow_ctx=*/;
-  }
-  return_label30: while(false);
   tracehead = trace.prev;
-  return;
+  return ATTR_control_flow___SubVariableContext____prev( self) /*SubVariableContext::_prev*/;
 }
-void control_flow___AClosureDef___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 345, LOCATE_control_flow___AClosureDef___accept_control_flow};
-  val_t variable[6];
-  void **closurevariable = NULL;
+void control_flow___SubVariableContext___with_prev(val_t  self, val_t  param0, val_t  param1, int* init_table) {
+  struct trace_t trace = {NULL, NULL, 227, LOCATE_control_flow___SubVariableContext___with_prev};
+  val_t variable[5];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
+  /* Register variable[1]: Local variable */
   variable[1] =  param0;
-  variable[3] = variable[0];
-  variable[3] = CALL_syntax_base___PClosureDef___variables(variable[3])(variable[3]) /*PClosureDef::variables*/;
-  variable[3] = CALL_abstract_collection___Collection___iterator(variable[3])(variable[3]) /*AbstractArray::iterator*/;
-  while (true) { /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___is_ok(variable[3])(variable[3]) /*ArrayIterator::is_ok*/;
-    if (!UNTAG_Bool(variable[4])) break; /*for*/
-    variable[4] = CALL_abstract_collection___Iterator___item(variable[3])(variable[3]) /*ArrayIterator::item*/;
-    variable[5] = variable[4];
-    CALL_control_flow___ControlFlowVisitor___mark_is_set( variable[1] /*v*/)( variable[1] /*v*/,  variable[5] /*va*/) /*ControlFlowVisitor::mark_is_set*/;
-    continue_32: while(0);
-    CALL_abstract_collection___Iterator___next(variable[3])(variable[3]) /*ArrayIterator::next*/;
-  }
-  break_32: while(0);
-  CALL_SUPER_control_flow___AClosureDef___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AClosureDef::accept_control_flow*/;
-  return_label31: while(false);
+  /* Register variable[2]: Local variable */
+  variable[2] =  param1;
+  if (init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_SubVariableContext].i]) return;
+  /* Register variable[3]: Method return value and escape marker */
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_control_flow___VariableContext____visitor( variable[1] /*p*/) /*VariableContext::_visitor*/;
+  CALL_control_flow___VariableContext___init(variable[0])(variable[0], variable[4],  variable[2] /*node*/, init_table /*YYY*/) /*VariableContext::init*/;
+  ATTR_control_flow___SubVariableContext____prev(variable[0]) /*SubVariableContext::_prev*/ =  variable[1] /*p*/;
+  /* Register variable[4]: Result */
+  variable[4] = ATTR_control_flow___VariableContext____all_variables( variable[1] /*p*/) /*VariableContext::_all_variables*/;
+  ATTR_control_flow___VariableContext____all_variables(variable[0]) /*VariableContext::_all_variables*/ = variable[4];
+  return_label32: while(false);
+  init_table[VAL2OBJ(variable[0])->vft[INIT_TABLE_POS_SubVariableContext].i] = 1;
   tracehead = trace.prev;
   return;
 }
-void control_flow___AClosureDef___check_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 351, LOCATE_control_flow___AClosureDef___check_control_flow};
-  val_t variable[5];
-  void **closurevariable = NULL;
+val_t control_flow___Variable___must_be_set(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 241, LOCATE_control_flow___Variable___must_be_set};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___control_flow_ctx( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::control_flow_ctx*/;
-  variable[3] = CALL_control_flow___ControlFlowContext___unreash(variable[3])(variable[3]) /*ControlFlowContext::unreash*/;
-  variable[3] = TAG_Bool((variable[3])==( TAG_Bool(false)));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[3] = CALL_syntax_base___PClosureDef___closure(variable[3])(variable[3]) /*PClosureDef::closure*/;
-    variable[3] = CALL_static_type___MMClosure___signature(variable[3])(variable[3]) /*MMClosure::signature*/;
-    variable[3] = CALL_static_type___MMSignature___return_type(variable[3])(variable[3]) /*MMSignature::return_type*/;
-    variable[3] = TAG_Bool(!UNTAG_Bool(TAG_Bool((variable[3] ==  NIT_NULL /*null*/) || ((variable[3] != NIT_NULL) && ((CALL_kernel___Object_____eqeq(variable[3])==kernel___Object_____eqeq)?(IS_EQUAL_NN(variable[3], NIT_NULL /*null*/)):(UNTAG_Bool(CALL_kernel___Object_____eqeq(variable[3])(variable[3],  NIT_NULL /*null*/) /*Object::==*/)))))));
-    if (UNTAG_Bool(variable[3])) { /*if*/
-      variable[3] = variable[0];
-      variable[4] = NEW_String_string___String___with_native(BOX_NativeString("Control error: Reached end of bloc (a 'continue' with a value was expected)."), TAG_Int(76)); /*new String*/
-      CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*AbsSyntaxVisitor::error*/;
-    } else { /*if*/
-      variable[3] = variable[0];
-      variable[3] = CALL_syntax_base___PClosureDef___closure(variable[3])(variable[3]) /*PClosureDef::closure*/;
-      variable[3] = CALL_static_type___MMClosure___is_break(variable[3])(variable[3]) /*MMClosure::is_break*/;
-      if (UNTAG_Bool(variable[3])) { /*if*/
-        variable[3] = variable[0];
-        variable[4] = NEW_String_string___String___with_native(BOX_NativeString("Control error: Reached end of break bloc (a 'break' was expected)."), TAG_Int(66)); /*new String*/
-        CALL_syntax_base___AbsSyntaxVisitor___error( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*AbsSyntaxVisitor::error*/;
-      }
-    }
-  }
+  /* Register variable[1]: Method return value and escape marker */
+  variable[1] =  TAG_Bool(false);
+  goto return_label33;
   return_label33: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[1];
 }
-void control_flow___AOnceExpr___accept_control_flow(val_t  self, val_t  param0) {
-  struct trace_t trace = {NULL, NULL, 364, LOCATE_control_flow___AOnceExpr___accept_control_flow};
-  val_t variable[5];
-  void **closurevariable = NULL;
+val_t control_flow___VarVariable___must_be_set(val_t  self) {
+  struct trace_t trace = {NULL, NULL, 246, LOCATE_control_flow___VarVariable___must_be_set};
+  val_t variable[2];
+  struct WBT_ **closurevariable = NULL;
   trace.prev = tracehead; tracehead = &trace;
   trace.file = LOCATE_control_flow;
+  /* Register variable[0]: Local variable */
   variable[0] =  self;
-  variable[1] =  param0;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___once_count( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::once_count*/;
-  variable[3] = TAG_Bool(UNTAG_Int(variable[3])>UNTAG_Int( TAG_Int(0)));
-  if (UNTAG_Bool(variable[3])) { /*if*/
-    variable[3] = variable[0];
-    variable[4] = NEW_String_string___String___with_native(BOX_NativeString("Useless once in a once expression."), TAG_Int(34)); /*new String*/
-    CALL_syntax_base___AbsSyntaxVisitor___warning( variable[1] /*v*/)( variable[1] /*v*/, variable[3], variable[4]) /*AbsSyntaxVisitor::warning*/;
-  }
-  variable[3] = CALL_control_flow___ControlFlowVisitor___once_count( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::once_count*/;
-  variable[3] = TAG_Int(UNTAG_Int(variable[3])+UNTAG_Int( TAG_Int(1)));
-  CALL_control_flow___ControlFlowVisitor___once_count__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::once_count=*/;
-  CALL_SUPER_control_flow___AOnceExpr___accept_control_flow(variable[0])(variable[0], variable[1]) /*super AOnceExpr::accept_control_flow*/;
-  variable[3] = CALL_control_flow___ControlFlowVisitor___once_count( variable[1] /*v*/)( variable[1] /*v*/) /*ControlFlowVisitor::once_count*/;
-  variable[3] = TAG_Int(UNTAG_Int(variable[3])-UNTAG_Int( TAG_Int(1)));
-  CALL_control_flow___ControlFlowVisitor___once_count__eq( variable[1] /*v*/)( variable[1] /*v*/, variable[3]) /*ControlFlowVisitor::once_count=*/;
+  /* Register variable[1]: Method return value and escape marker */
+  variable[1] =  TAG_Bool(true);
+  goto return_label34;
   return_label34: while(false);
   tracehead = trace.prev;
-  return;
+  return variable[1];
 }