Getting value of local variables on stack trace

runtime/vm/object.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "vm/assembler.h"
 #include "vm/assert.h"
 #include "vm/bigint_operations.h"
 #include "vm/bootstrap.h"
@@ skipping 4592 matching lines @@
 
 RawString* LocalVarDescriptors::GetName(intptr_t var_index) const {
   ASSERT(var_index < Length());
   const Array& names = Array::Handle(raw_ptr()->names_);
   ASSERT(Length() == names.Length());
   const String& name = String::CheckedHandle(names.At(var_index));
   return name.raw();
 }
 
 
-void LocalVarDescriptors::GetRange(intptr_t var_index,
-                                   intptr_t* begin_token_pos,
-                                   intptr_t* end_token_pos) const {
+void LocalVarDescriptors::GetScopeInfo(
+                              intptr_t var_index,
+                              intptr_t* scope_id,
+                              intptr_t* begin_token_pos,
+                              intptr_t* end_token_pos) const {
   ASSERT(var_index < Length());
   RawLocalVarDescriptors::VarInfo *info = &raw_ptr()->data_[var_index];
+  *scope_id = info->scope_id;
   *begin_token_pos = info->begin_pos;
   *end_token_pos = info->end_pos;
 }
 
 
 intptr_t LocalVarDescriptors::GetSlotIndex(intptr_t var_index) const {
   ASSERT(var_index < Length());
   RawLocalVarDescriptors::VarInfo *info = &raw_ptr()->data_[var_index];
   return info->index;
 }
 
 
 void LocalVarDescriptors::SetVar(intptr_t var_index,
-                                const String& name,
-                                intptr_t stack_slot,
-                                intptr_t begin_pos,
-                                intptr_t end_pos) const {
+                                 const String& name,
+                                 intptr_t stack_slot,
+                                 intptr_t scope_id,
+                                 intptr_t begin_pos,
+                                 intptr_t end_pos) const {
   ASSERT(var_index < Length());
   const Array& names = Array::Handle(raw_ptr()->names_);
   ASSERT(Length() == names.Length());
   names.SetAt(var_index, name);
   RawLocalVarDescriptors::VarInfo *info = &raw_ptr()->data_[var_index];
   info->index = stack_slot;
+  info->scope_id = scope_id;
   info->begin_pos = begin_pos;
   info->end_pos = end_pos;
 }
 
 
 const char* LocalVarDescriptors::ToCString() const {
   UNIMPLEMENTED();
-  return "";
+  return "LocalVarDescriptors";
 }
 
 
 RawLocalVarDescriptors* LocalVarDescriptors::New(intptr_t num_variables) {
   const Class& cls = Class::Handle(Object::var_descriptors_class());
   LocalVarDescriptors& result = LocalVarDescriptors::Handle();
   {
     uword size = LocalVarDescriptors::InstanceSize(num_variables);
     RawObject* raw = Object::Allocate(cls, size, Heap::kOld);
     NoGCScope no_gc;
@@ skipping 2845 matching lines @@
   const String& str = String::Handle(pattern());
   const char* format = "JSRegExp: pattern=%s flags=%s";
   intptr_t len = OS::SNPrint(NULL, 0, format, str.ToCString(), Flags());
   char* chars = reinterpret_cast<char*>(
       Isolate::Current()->current_zone()->Allocate(len + 1));
   OS::SNPrint(chars, (len + 1), format, str.ToCString(), Flags());
   return chars;
 }
 
 }  // namespace dart