Handlify GetSourceCode-related functions.

src/objects.cc

 // Copyright 2012 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 7597 matching lines @@
   return String::cast(n);
 }
 
 
 bool SharedFunctionInfo::HasSourceCode() {
   return !script()->IsUndefined() &&
          !reinterpret_cast<Script*>(script())->source()->IsUndefined();
 }
 
 
-Object* SharedFunctionInfo::GetSourceCode() {
-  Isolate* isolate = GetIsolate();
-  if (!HasSourceCode()) return isolate->heap()->undefined_value();
-  HandleScope scope(isolate);
-  Object* source = Script::cast(script())->source();
-  return *SubString(Handle<String>(String::cast(source), isolate),
-                    start_position(), end_position());
+Handle<Object> SharedFunctionInfo::GetSourceCode() {
+  if (!HasSourceCode()) return GetIsolate()->factory()->undefined_value();
+  Handle<String> source(String::cast(Script::cast(script())->source()));
+  return SubString(source, start_position(), end_position());
 }
 
 
 int SharedFunctionInfo::SourceSize() {
   return end_position() - start_position();
 }
 
 
 int SharedFunctionInfo::CalculateInstanceSize() {
   int instance_size =
@@ skipping 5398 matching lines @@
   if (break_point_objects()->IsUndefined()) return 0;
   // Single break point.
   if (!break_point_objects()->IsFixedArray()) return 1;
   // Multiple break points.
   return FixedArray::cast(break_point_objects())->length();
 }
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 
 } }  // namespace v8::internal