Added mutation of locals to debugger

src/frames.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 439 matching lines @@
 }
 
 
 Object* JavaScriptFrame::GetParameter(int index) const {
   ASSERT(index >= 0 && index < ComputeParametersCount());
   const int offset = JavaScriptFrameConstants::kParam0Offset;
   return Memory::Object_at(caller_sp() + offset - (index * kPointerSize));
 }
 
 
+void JavaScriptFrame::SetParameter(int index, Object* value) {
+  ASSERT(index >= 0 && index < ComputeParametersCount());
+  const int offset = JavaScriptFrameConstants::kParam0Offset;
+  Memory::Object_at(caller_sp() + offset - (index * kPointerSize)) = value;
+}
+
+
 int JavaScriptFrame::ComputeParametersCount() const {
   Address base  = caller_sp() + JavaScriptFrameConstants::kReceiverOffset;
   Address limit = fp() + JavaScriptFrameConstants::kSavedRegistersOffset;
   return (base - limit) / kPointerSize;
 }
 
 
 bool JavaScriptFrame::IsConstructor() const {
   Address fp = caller_fp();
   if (has_adapted_arguments()) {
     // Skip the arguments adaptor frame and look at the real caller.
     fp = Memory::Address_at(fp + StandardFrameConstants::kCallerFPOffset);
   }
   return IsConstructFrame(fp);
 }
 
 
 Code* JavaScriptFrame::code() const {
   JSFunction* function = JSFunction::cast(this->function());
   return function->shared()->code();
 }
 
 
+Address JavaScriptFrame::GetParameterAddress(int n) const {
+  ASSERT(n >= 0 && n < ComputeParametersCount());
+  const int offset = JavaScriptFrameConstants::kParam0Offset;
+  return caller_sp() + offset - (n * kPointerSize);
+}
+
+
 Code* ArgumentsAdaptorFrame::code() const {
   return Builtins::builtin(Builtins::ArgumentsAdaptorTrampoline);
 }
 
 
 Code* InternalFrame::code() const {
   const int offset = InternalFrameConstants::kCodeOffset;
   Object* code = Memory::Object_at(fp() + offset);
   ASSERT(code != NULL);
   return Code::cast(code);
@@ skipping 241 matching lines @@
         reg_code[i++] = r;
 
     ASSERT(i == kNumJSCallerSaved);
   }
   ASSERT(0 <= n && n < kNumJSCallerSaved);
   return reg_code[n];
 }
 
 
 } }  // namespace v8::internal