Introduce JSFunction::EnsureHasInitialMap method.

src/factory.cc

 // Copyright 2013 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 562 matching lines @@
 
 
 Handle<JSObject> Factory::NewFunctionPrototype(Handle<JSFunction> function) {
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateFunctionPrototype(*function),
       JSObject);
 }
 
 
+Handle<Map> Factory::NewInitialMap(Handle<JSFunction> function) {
+  CALL_HEAP_FUNCTION(
+      isolate(), isolate()->heap()->AllocateInitialMap(*function), Map);
+}
+
+
 Handle<Map> Factory::CopyWithPreallocatedFieldDescriptors(Handle<Map> src) {
   CALL_HEAP_FUNCTION(
       isolate(), src->CopyWithPreallocatedFieldDescriptors(), Map);
 }
 
 
 Handle<Map> Factory::CopyMap(Handle<Map> src,
                              int extra_inobject_properties) {
   Handle<Map> copy = CopyWithPreallocatedFieldDescriptors(src);
   // Check that we do not overflow the instance size when adding the
@@ skipping 445 matching lines @@
 
 
 Handle<String> Factory::InternalizedStringFromString(Handle<String> value) {
   CALL_HEAP_FUNCTION(isolate(),
                      isolate()->heap()->InternalizeString(*value), String);
 }
 
 
 Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
                                       PretenureFlag pretenure) {
+  JSFunction::EnsureHasInitialMap(constructor);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*constructor, pretenure), JSObject);
 }
 
 
 Handle<JSModule> Factory::NewJSModule(Handle<Context> context,
                                       Handle<ScopeInfo> scope_info) {
   CALL_HEAP_FUNCTION(
       isolate(),
@@ skipping 126 matching lines @@
 
 
 void Factory::SetContent(Handle<JSArray> array,
                          Handle<FixedArrayBase> elements) {
   CALL_HEAP_FUNCTION_VOID(
       isolate(),
       array->SetContent(*elements));
 }
 
 
+Handle<JSGeneratorObject> Factory::NewJSGeneratorObject(
+    Handle<JSFunction> function) {
+  ASSERT(function->shared()->is_generator());
+  JSFunction::EnsureHasInitialMap(function);
+  Handle<Map> map(function->initial_map());
+  ASSERT(map->instance_type() == JS_GENERATOR_OBJECT_TYPE);
+  CALL_HEAP_FUNCTION(
+      isolate(),
+      isolate()->heap()->AllocateJSObjectFromMap(*map),
+      JSGeneratorObject);
+}
+
+
 Handle<JSArrayBuffer> Factory::NewJSArrayBuffer() {
   Handle<JSFunction> array_buffer_fun(
       isolate()->context()->native_context()->array_buffer_fun());
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*array_buffer_fun),
       JSArrayBuffer);
 }
 
 
@@ skipping 535 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal