Revision: 7611
Author:   [email protected]
Date:     Thu Apr 14 01:01:19 2011
Log:      Isolates: Cleanup usage of FACTORY in code stubs and bootstrapper.

Review URL: http://codereview.chromium.org/6720014
http://code.google.com/p/v8/source/detail?r=7611

Modified:
 /branches/bleeding_edge/src/api.cc
 /branches/bleeding_edge/src/arm/code-stubs-arm.cc
 /branches/bleeding_edge/src/bootstrapper.cc
 /branches/bleeding_edge/src/bootstrapper.h
 /branches/bleeding_edge/src/debug.cc
 /branches/bleeding_edge/src/ia32/code-stubs-ia32.cc
 /branches/bleeding_edge/src/x64/code-stubs-x64.cc
 /branches/bleeding_edge/src/x64/macro-assembler-x64.cc

=======================================
--- /branches/bleeding_edge/src/api.cc  Mon Apr 11 16:46:22 2011
+++ /branches/bleeding_edge/src/api.cc  Thu Apr 14 01:01:19 2011
@@ -3707,6 +3707,7 @@

     // Create the environment.
     env = isolate->bootstrapper()->CreateEnvironment(
+        isolate,
         Utils::OpenHandle(*global_object),
         proxy_template,
         extensions);
=======================================
--- /branches/bleeding_edge/src/arm/code-stubs-arm.cc Wed Apr 13 04:59:17 2011 +++ /branches/bleeding_edge/src/arm/code-stubs-arm.cc Thu Apr 14 01:01:19 2011
@@ -3678,7 +3678,7 @@
   __ b(ne, &slow);

   // Null is not instance of anything.
-  __ cmp(scratch, Operand(FACTORY->null_value()));
+  __ cmp(scratch, Operand(masm->isolate()->factory()->null_value()));
   __ b(ne, &object_not_null);
   __ mov(r0, Operand(Smi::FromInt(1)));
   __ Ret(HasArgsInRegisters() ? 0 : 2);
@@ -4176,7 +4176,7 @@

   __ bind(&failure);
   // For failure and exception return null.
-  __ mov(r0, Operand(FACTORY->null_value()));
+  __ mov(r0, Operand(masm->isolate()->factory()->null_value()));
   __ add(sp, sp, Operand(4 * kPointerSize));
   __ Ret();

@@ -4247,6 +4247,8 @@
   const int kMaxInlineLength = 100;
   Label slowcase;
   Label done;
+  Factory* factory = masm->isolate()->factory();
+
   __ ldr(r1, MemOperand(sp, kPointerSize * 2));
   STATIC_ASSERT(kSmiTag == 0);
   STATIC_ASSERT(kSmiTagSize == 1);
@@ -4281,7 +4283,7 @@
   // Interleave operations for better latency.
   __ ldr(r2, ContextOperand(cp, Context::GLOBAL_INDEX));
   __ add(r3, r0, Operand(JSRegExpResult::kSize));
-  __ mov(r4, Operand(FACTORY->empty_fixed_array()));
+  __ mov(r4, Operand(factory->empty_fixed_array()));
   __ ldr(r2, FieldMemOperand(r2, GlobalObject::kGlobalContextOffset));
   __ str(r3, FieldMemOperand(r0, JSObject::kElementsOffset));
   __ ldr(r2, ContextOperand(r2, Context::REGEXP_RESULT_MAP_INDEX));
@@ -4302,13 +4304,13 @@
   // r5: Number of elements in array, untagged.

   // Set map.
-  __ mov(r2, Operand(FACTORY->fixed_array_map()));
+  __ mov(r2, Operand(factory->fixed_array_map()));
   __ str(r2, FieldMemOperand(r3, HeapObject::kMapOffset));
   // Set FixedArray length.
   __ mov(r6, Operand(r5, LSL, kSmiTagSize));
   __ str(r6, FieldMemOperand(r3, FixedArray::kLengthOffset));
   // Fill contents of fixed-array with the-hole.
-  __ mov(r2, Operand(FACTORY->the_hole_value()));
+  __ mov(r2, Operand(factory->the_hole_value()));
   __ add(r3, r3, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   // Fill fixed array elements with hole.
   // r0: JSArray, tagged.
=======================================
--- /branches/bleeding_edge/src/bootstrapper.cc Wed Mar 30 03:46:55 2011
+++ /branches/bleeding_edge/src/bootstrapper.cc Thu Apr 14 01:01:19 2011
@@ -1,4 +1,4 @@
-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2011 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:
@@ -141,7 +141,8 @@

 class Genesis BASE_EMBEDDED {
  public:
-  Genesis(Handle<Object> global_object,
+  Genesis(Isolate* isolate,
+          Handle<Object> global_object,
           v8::Handle<v8::ObjectTemplate> global_template,
           v8::ExtensionConfiguration* extensions);
   ~Genesis() { }
@@ -149,9 +150,14 @@
   Handle<Context> result() { return result_; }

   Genesis* previous() { return previous_; }
+
+  Isolate* isolate() const { return isolate_; }
+  Factory* factory() const { return isolate_->factory(); }
+  Heap* heap() const { return isolate_->heap(); }

  private:
   Handle<Context> global_context_;
+  Isolate* isolate_;

   // There may be more than one active genesis object: When GC is
   // triggered during environment creation there may be weak handle
@@ -163,7 +169,7 @@
   // Creates some basic objects. Used for creating a context from scratch.
   void CreateRoots();
   // Creates the empty function.  Used for creating a context from scratch.
-  Handle<JSFunction> CreateEmptyFunction();
+  Handle<JSFunction> CreateEmptyFunction(Isolate* isolate);
   // Creates the ThrowTypeError function. ECMA 5th Ed. 13.2.3
   Handle<JSFunction> CreateThrowTypeErrorFunction(Builtins::Name builtin);

@@ -239,7 +245,7 @@
       Handle<FixedArray> arguments,
       Handle<FixedArray> caller);

-  static bool CompileBuiltin(int index);
+  static bool CompileBuiltin(Isolate* isolate, int index);
static bool CompileNative(Vector<const char> name, Handle<String> source);
   static bool CompileScriptCached(Vector<const char> name,
                                   Handle<String> source,
@@ -269,12 +275,13 @@


 Handle<Context> Bootstrapper::CreateEnvironment(
+    Isolate* isolate,
     Handle<Object> global_object,
     v8::Handle<v8::ObjectTemplate> global_template,
     v8::ExtensionConfiguration* extensions) {
   HandleScope scope;
   Handle<Context> env;
-  Genesis genesis(global_object, global_template, extensions);
+  Genesis genesis(isolate, global_object, global_template, extensions);
   env = genesis.result();
   if (!env.is_null()) {
     if (InstallExtensions(env, extensions)) {
@@ -287,15 +294,16 @@

static void SetObjectPrototype(Handle<JSObject> object, Handle<Object> proto) {
   // object.__proto__ = proto;
+  Factory* factory = object->GetIsolate()->factory();
   Handle<Map> old_to_map = Handle<Map>(object->map());
-  Handle<Map> new_to_map = FACTORY->CopyMapDropTransitions(old_to_map);
+  Handle<Map> new_to_map = factory->CopyMapDropTransitions(old_to_map);
   new_to_map->set_prototype(*proto);
   object->set_map(*new_to_map);
 }


 void Bootstrapper::DetachGlobal(Handle<Context> env) {
-  Factory* factory = Isolate::Current()->factory();
+  Factory* factory = env->GetIsolate()->factory();
JSGlobalProxy::cast(env->global_proxy())->set_context(*factory->null_value());
   SetObjectPrototype(Handle<JSObject>(env->global_proxy()),
                      factory->null_value());
@@ -322,7 +330,7 @@
                                           Handle<JSObject> prototype,
                                           Builtins::Name call,
                                           bool is_ecma_native) {
-  Isolate* isolate = Isolate::Current();
+  Isolate* isolate = target->GetIsolate();
   Factory* factory = isolate->factory();
   Handle<String> symbol = factory->LookupAsciiSymbol(name);
Handle<Code> call_code = Handle<Code>(isolate->builtins()->builtin(call));
@@ -344,30 +352,29 @@

 Handle<DescriptorArray> Genesis::ComputeFunctionInstanceDescriptor(
     PrototypePropertyMode prototypeMode) {
-  Factory* factory = Isolate::Current()->factory();
   Handle<DescriptorArray> descriptors =
- factory->NewDescriptorArray(prototypeMode == DONT_ADD_PROTOTYPE ? 4 : 5); + factory()->NewDescriptorArray(prototypeMode == DONT_ADD_PROTOTYPE ? 4 : 5);
   PropertyAttributes attributes =
       static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY);

   {  // Add length.
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionLength);
-    CallbacksDescriptor d(*factory->length_symbol(), *proxy, attributes);
+    Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionLength);
+    CallbacksDescriptor d(*factory()->length_symbol(), *proxy, attributes);
     descriptors->Set(0, &d);
   }
   {  // Add name.
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionName);
-    CallbacksDescriptor d(*factory->name_symbol(), *proxy, attributes);
+    Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionName);
+    CallbacksDescriptor d(*factory()->name_symbol(), *proxy, attributes);
     descriptors->Set(1, &d);
   }
   {  // Add arguments.
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionArguments);
- CallbacksDescriptor d(*factory->arguments_symbol(), *proxy, attributes); + Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionArguments); + CallbacksDescriptor d(*factory()->arguments_symbol(), *proxy, attributes);
     descriptors->Set(2, &d);
   }
   {  // Add caller.
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionCaller);
-    CallbacksDescriptor d(*factory->caller_symbol(), *proxy, attributes);
+    Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionCaller);
+    CallbacksDescriptor d(*factory()->caller_symbol(), *proxy, attributes);
     descriptors->Set(3, &d);
   }
   if (prototypeMode != DONT_ADD_PROTOTYPE) {
@@ -375,8 +382,8 @@
     if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) {
attributes = static_cast<PropertyAttributes>(attributes & ~READ_ONLY);
     }
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionPrototype);
- CallbacksDescriptor d(*factory->prototype_symbol(), *proxy, attributes); + Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionPrototype); + CallbacksDescriptor d(*factory()->prototype_symbol(), *proxy, attributes);
     descriptors->Set(4, &d);
   }
   descriptors->Sort();
@@ -385,7 +392,7 @@


Handle<Map> Genesis::CreateFunctionMap(PrototypePropertyMode prototype_mode) {
-  Handle<Map> map = FACTORY->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize);
+  Handle<Map> map = factory()->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize);
   Handle<DescriptorArray> descriptors =
       ComputeFunctionInstanceDescriptor(prototype_mode);
   map->set_instance_descriptors(*descriptors);
@@ -394,7 +401,7 @@
 }


-Handle<JSFunction> Genesis::CreateEmptyFunction() {
+Handle<JSFunction> Genesis::CreateEmptyFunction(Isolate* isolate) {
// Allocate the map for function instances. Maps are allocated first and their
   // prototypes patched later, once empty function is created.

@@ -422,7 +429,6 @@
   function_instance_map_writable_prototype_ =
       CreateFunctionMap(ADD_WRITEABLE_PROTOTYPE);

-  Isolate* isolate = Isolate::Current();
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();

@@ -491,28 +497,29 @@
     PrototypePropertyMode prototypeMode,
     Handle<FixedArray> arguments,
     Handle<FixedArray> caller) {
-  Factory* factory = Isolate::Current()->factory();
   Handle<DescriptorArray> descriptors =
- factory->NewDescriptorArray(prototypeMode == DONT_ADD_PROTOTYPE ? 4 : 5); + factory()->NewDescriptorArray(prototypeMode == DONT_ADD_PROTOTYPE ? 4 : 5);
   PropertyAttributes attributes = static_cast<PropertyAttributes>(
       DONT_ENUM | DONT_DELETE | READ_ONLY);

   {  // length
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionLength);
-    CallbacksDescriptor d(*factory->length_symbol(), *proxy, attributes);
+    Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionLength);
+    CallbacksDescriptor d(*factory()->length_symbol(), *proxy, attributes);
     descriptors->Set(0, &d);
   }
   {  // name
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionName);
-    CallbacksDescriptor d(*factory->name_symbol(), *proxy, attributes);
+    Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionName);
+    CallbacksDescriptor d(*factory()->name_symbol(), *proxy, attributes);
     descriptors->Set(1, &d);
   }
   {  // arguments
- CallbacksDescriptor d(*factory->arguments_symbol(), *arguments, attributes);
+    CallbacksDescriptor d(*factory()->arguments_symbol(),
+                          *arguments,
+                          attributes);
     descriptors->Set(2, &d);
   }
   {  // caller
-    CallbacksDescriptor d(*factory->caller_symbol(), *caller, attributes);
+ CallbacksDescriptor d(*factory()->caller_symbol(), *caller, attributes);
     descriptors->Set(3, &d);
   }

@@ -521,8 +528,8 @@
     if (prototypeMode == ADD_WRITEABLE_PROTOTYPE) {
attributes = static_cast<PropertyAttributes>(attributes & ~READ_ONLY);
     }
-    Handle<Proxy> proxy = factory->NewProxy(&Accessors::FunctionPrototype);
- CallbacksDescriptor d(*factory->prototype_symbol(), *proxy, attributes); + Handle<Proxy> proxy = factory()->NewProxy(&Accessors::FunctionPrototype); + CallbacksDescriptor d(*factory()->prototype_symbol(), *proxy, attributes);
     descriptors->Set(4, &d);
   }

@@ -534,14 +541,11 @@
 // ECMAScript 5th Edition, 13.2.3
 Handle<JSFunction> Genesis::CreateThrowTypeErrorFunction(
     Builtins::Name builtin) {
-  Isolate* isolate = Isolate::Current();
-  Factory* factory = isolate->factory();
-
-  Handle<String> name = factory->LookupAsciiSymbol("ThrowTypeError");
+  Handle<String> name = factory()->LookupAsciiSymbol("ThrowTypeError");
   Handle<JSFunction> throw_type_error =
-      factory->NewFunctionWithoutPrototype(name, kStrictMode);
+      factory()->NewFunctionWithoutPrototype(name, kStrictMode);
   Handle<Code> code = Handle<Code>(
-      isolate->builtins()->builtin(builtin));
+      isolate()->builtins()->builtin(builtin));

   throw_type_error->set_map(global_context()->strict_mode_function_map());
   throw_type_error->set_code(*code);
@@ -559,7 +563,7 @@
     Handle<JSFunction> empty_function,
     Handle<FixedArray> arguments_callbacks,
     Handle<FixedArray> caller_callbacks) {
-  Handle<Map> map = FACTORY->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize);
+  Handle<Map> map = factory()->NewMap(JS_FUNCTION_TYPE, JSFunction::kSize);
   Handle<DescriptorArray> descriptors =
       ComputeStrictFunctionInstanceDescriptor(prototype_mode,
                                               arguments_callbacks,
@@ -574,7 +578,7 @@
 void Genesis::CreateStrictModeFunctionMaps(Handle<JSFunction> empty) {
   // Create the callbacks arrays for ThrowTypeError functions.
   // The get/set callacks are filled in after the maps are created below.
-  Factory* factory = Isolate::Current()->factory();
+  Factory* factory = empty->GetIsolate()->factory();
   Handle<FixedArray> arguments = factory->NewFixedArray(2, TENURED);
   Handle<FixedArray> caller = factory->NewFixedArray(2, TENURED);

@@ -623,7 +627,7 @@

 static void AddToWeakGlobalContextList(Context* context) {
   ASSERT(context->IsGlobalContext());
-  Heap* heap = Isolate::Current()->heap();
+  Heap* heap = context->GetIsolate()->heap();
 #ifdef DEBUG
   { // NOLINT
     ASSERT(context->get(Context::NEXT_CONTEXT_LINK)->IsUndefined());
@@ -641,15 +645,14 @@


 void Genesis::CreateRoots() {
-  Isolate* isolate = Isolate::Current();
   // Allocate the global context FixedArray first and then patch the
   // closure and extension object later (we need the empty function
   // and the global object, but in order to create those, we need the
   // global context).
- global_context_ = Handle<Context>::cast(isolate->global_handles()->Create(
-              *isolate->factory()->NewGlobalContext()));
+ global_context_ = Handle<Context>::cast(isolate()->global_handles()->Create(
+              *factory()->NewGlobalContext()));
   AddToWeakGlobalContextList(*global_context_);
-  isolate->set_context(*global_context());
+  isolate()->set_context(*global_context());

   // Allocate the message listeners object.
   {
@@ -691,18 +694,14 @@
           Handle<ObjectTemplateInfo>::cast(proto_template);
     }
   }
-
-  Isolate* isolate = Isolate::Current();
-  Factory* factory = isolate->factory();
-  Heap* heap = isolate->heap();

   if (js_global_template.is_null()) {
-    Handle<String> name = Handle<String>(heap->empty_symbol());
-    Handle<Code> code = Handle<Code>(isolate->builtins()->builtin(
+    Handle<String> name = Handle<String>(heap()->empty_symbol());
+    Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin(
         Builtins::kIllegal));
     js_global_function =
-        factory->NewFunction(name, JS_GLOBAL_OBJECT_TYPE,
-                             JSGlobalObject::kSize, code, true);
+        factory()->NewFunction(name, JS_GLOBAL_OBJECT_TYPE,
+                               JSGlobalObject::kSize, code, true);
     // Change the constructor property of the prototype of the
     // hidden global function to refer to the Object function.
     Handle<JSObject> prototype =
@@ -710,20 +709,20 @@
             JSObject::cast(js_global_function->instance_prototype()));
     SetLocalPropertyNoThrow(
         prototype,
-        factory->constructor_symbol(),
-        isolate->object_function(),
+        factory()->constructor_symbol(),
+        isolate()->object_function(),
         NONE);
   } else {
     Handle<FunctionTemplateInfo> js_global_constructor(
         FunctionTemplateInfo::cast(js_global_template->constructor()));
     js_global_function =
-        factory->CreateApiFunction(js_global_constructor,
-                                   factory->InnerGlobalObject);
+        factory()->CreateApiFunction(js_global_constructor,
+                                     factory()->InnerGlobalObject);
   }

   js_global_function->initial_map()->set_is_hidden_prototype();
   Handle<GlobalObject> inner_global =
-      factory->NewGlobalObject(js_global_function);
+      factory()->NewGlobalObject(js_global_function);
   if (inner_global_out != NULL) {
     *inner_global_out = inner_global;
   }
@@ -731,23 +730,23 @@
   // Step 2: create or re-initialize the global proxy object.
   Handle<JSFunction> global_proxy_function;
   if (global_template.IsEmpty()) {
-    Handle<String> name = Handle<String>(heap->empty_symbol());
-    Handle<Code> code = Handle<Code>(isolate->builtins()->builtin(
+    Handle<String> name = Handle<String>(heap()->empty_symbol());
+    Handle<Code> code = Handle<Code>(isolate()->builtins()->builtin(
         Builtins::kIllegal));
     global_proxy_function =
-        factory->NewFunction(name, JS_GLOBAL_PROXY_TYPE,
-                             JSGlobalProxy::kSize, code, true);
+        factory()->NewFunction(name, JS_GLOBAL_PROXY_TYPE,
+                               JSGlobalProxy::kSize, code, true);
   } else {
     Handle<ObjectTemplateInfo> data =
         v8::Utils::OpenHandle(*global_template);
     Handle<FunctionTemplateInfo> global_constructor(
             FunctionTemplateInfo::cast(data->constructor()));
     global_proxy_function =
-        factory->CreateApiFunction(global_constructor,
-                                   factory->OuterGlobalObject);
+        factory()->CreateApiFunction(global_constructor,
+                                     factory()->OuterGlobalObject);
   }

-  Handle<String> global_name = factory->LookupAsciiSymbol("global");
+  Handle<String> global_name = factory()->LookupAsciiSymbol("global");
   global_proxy_function->shared()->set_instance_class_name(*global_name);
   global_proxy_function->initial_map()->set_is_access_check_needed(true);

@@ -761,7 +760,7 @@
         Handle<JSGlobalProxy>::cast(global_object));
   } else {
     return Handle<JSGlobalProxy>::cast(
-        factory->NewJSObject(global_proxy_function, TENURED));
+        factory()->NewJSObject(global_proxy_function, TENURED));
   }
 }

@@ -786,7 +785,7 @@
   static const PropertyAttributes attributes =
       static_cast<PropertyAttributes>(READ_ONLY | DONT_DELETE);
   ForceSetProperty(builtins_global,
-                   FACTORY->LookupAsciiSymbol("global"),
+                   factory()->LookupAsciiSymbol("global"),
                    inner_global,
                    attributes);
   // Setup the reference from the global object to the builtins object.
@@ -814,7 +813,7 @@
   // object reinitialization.
   global_context()->set_security_token(*inner_global);

-  Isolate* isolate = Isolate::Current();
+  Isolate* isolate = inner_global->GetIsolate();
   Factory* factory = isolate->factory();
   Heap* heap = isolate->heap();

@@ -1164,17 +1163,17 @@
 }


-bool Genesis::CompileBuiltin(int index) {
+bool Genesis::CompileBuiltin(Isolate* isolate, int index) {
   Vector<const char> name = Natives::GetScriptName(index);
   Handle<String> source_code =
-      Isolate::Current()->bootstrapper()->NativesSourceLookup(index);
+      isolate->bootstrapper()->NativesSourceLookup(index);
   return CompileNative(name, source_code);
 }


bool Genesis::CompileNative(Vector<const char> name, Handle<String> source) {
   HandleScope scope;
-  Isolate* isolate = Isolate::Current();
+  Isolate* isolate = source->GetIsolate();
 #ifdef ENABLE_DEBUGGER_SUPPORT
   isolate->debugger()->set_compiling_natives(true);
 #endif
@@ -1199,7 +1198,7 @@
                                   v8::Extension* extension,
                                   Handle<Context> top_context,
                                   bool use_runtime_context) {
-  Factory* factory = Isolate::Current()->factory();
+  Factory* factory = source->GetIsolate()->factory();
   HandleScope scope;
   Handle<SharedFunctionInfo> function_info;

@@ -1247,14 +1246,13 @@


#define INSTALL_NATIVE(Type, name, var) \ - Handle<String> var##_name = factory->LookupAsciiSymbol(name); \ + Handle<String> var##_name = factory()->LookupAsciiSymbol(name); \ Object* var##_native = \ global_context()->builtins()->GetPropertyNoExceptionThrown(*var##_name); \
   global_context()->set_##var(Type::cast(var##_native));


 void Genesis::InstallNativeFunctions() {
-  Factory* factory = Isolate::Current()->factory();
   HandleScope scope;
   INSTALL_NATIVE(JSFunction, "CreateDate", create_date_fun);
   INSTALL_NATIVE(JSFunction, "ToNumber", to_number_fun);
@@ -1277,25 +1275,23 @@

 bool Genesis::InstallNatives() {
   HandleScope scope;
-  Isolate* isolate = Isolate::Current();
-  Factory* factory = isolate->factory();
-  Heap* heap = isolate->heap();

   // Create a function for the builtins object. Allocate space for the
   // JavaScript builtins, a reference to the builtins object
   // (itself) and a reference to the global_context directly in the object.
   Handle<Code> code = Handle<Code>(
-      isolate->builtins()->builtin(Builtins::kIllegal));
+      isolate()->builtins()->builtin(Builtins::kIllegal));
   Handle<JSFunction> builtins_fun =
- factory->NewFunction(factory->empty_symbol(), JS_BUILTINS_OBJECT_TYPE,
-                           JSBuiltinsObject::kSize, code, true);
-
-  Handle<String> name = factory->LookupAsciiSymbol("builtins");
+      factory()->NewFunction(factory()->empty_symbol(),
+                             JS_BUILTINS_OBJECT_TYPE,
+                             JSBuiltinsObject::kSize, code, true);
+
+  Handle<String> name = factory()->LookupAsciiSymbol("builtins");
   builtins_fun->shared()->set_instance_class_name(*name);

   // Allocate the builtins object.
   Handle<JSBuiltinsObject> builtins =
- Handle<JSBuiltinsObject>::cast(factory->NewGlobalObject(builtins_fun)); + Handle<JSBuiltinsObject>::cast(factory()->NewGlobalObject(builtins_fun));
   builtins->set_builtins(*builtins);
   builtins->set_global_context(*global_context());
   builtins->set_global_receiver(*builtins);
@@ -1306,7 +1302,7 @@
   // global object.
   static const PropertyAttributes attributes =
       static_cast<PropertyAttributes>(READ_ONLY | DONT_DELETE);
-  Handle<String> global_symbol = factory->LookupAsciiSymbol("global");
+  Handle<String> global_symbol = factory()->LookupAsciiSymbol("global");
   Handle<Object> global_obj(global_context()->global());
   SetLocalPropertyNoThrow(builtins, global_symbol, global_obj, attributes);

@@ -1315,12 +1311,13 @@

   // Create a bridge function that has context in the global context.
   Handle<JSFunction> bridge =
- factory->NewFunction(factory->empty_symbol(), factory->undefined_value());
-  ASSERT(bridge->context() == *isolate->global_context());
+      factory()->NewFunction(factory()->empty_symbol(),
+                             factory()->undefined_value());
+  ASSERT(bridge->context() == *isolate()->global_context());

   // Allocate the builtins context.
   Handle<Context> context =
-    factory->NewFunctionContext(Context::MIN_CONTEXT_SLOTS, bridge);
+    factory()->NewFunctionContext(Context::MIN_CONTEXT_SLOTS, bridge);
   context->set_global(*builtins);  // override builtins global object

   global_context()->set_runtime_context(*context);
@@ -1329,113 +1326,113 @@
     // Builtin functions for Script.
     Handle<JSFunction> script_fun =
         InstallFunction(builtins, "Script", JS_VALUE_TYPE, JSValue::kSize,
-                        isolate->initial_object_prototype(),
+                        isolate()->initial_object_prototype(),
                         Builtins::kIllegal, false);
     Handle<JSObject> prototype =
-        factory->NewJSObject(isolate->object_function(), TENURED);
+        factory()->NewJSObject(isolate()->object_function(), TENURED);
     SetPrototype(script_fun, prototype);
     global_context()->set_script_function(*script_fun);

     // Add 'source' and 'data' property to scripts.
     PropertyAttributes common_attributes =
static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE | READ_ONLY); - Handle<Proxy> proxy_source = factory->NewProxy(&Accessors::ScriptSource); + Handle<Proxy> proxy_source = factory()->NewProxy(&Accessors::ScriptSource);
     Handle<DescriptorArray> script_descriptors =
-        factory->CopyAppendProxyDescriptor(
-            factory->empty_descriptor_array(),
-            factory->LookupAsciiSymbol("source"),
+        factory()->CopyAppendProxyDescriptor(
+            factory()->empty_descriptor_array(),
+            factory()->LookupAsciiSymbol("source"),
             proxy_source,
             common_attributes);
-    Handle<Proxy> proxy_name = factory->NewProxy(&Accessors::ScriptName);
+    Handle<Proxy> proxy_name = factory()->NewProxy(&Accessors::ScriptName);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("name"),
+            factory()->LookupAsciiSymbol("name"),
             proxy_name,
             common_attributes);
-    Handle<Proxy> proxy_id = factory->NewProxy(&Accessors::ScriptId);
+    Handle<Proxy> proxy_id = factory()->NewProxy(&Accessors::ScriptId);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("id"),
+            factory()->LookupAsciiSymbol("id"),
             proxy_id,
             common_attributes);
     Handle<Proxy> proxy_line_offset =
-        factory->NewProxy(&Accessors::ScriptLineOffset);
+        factory()->NewProxy(&Accessors::ScriptLineOffset);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("line_offset"),
+            factory()->LookupAsciiSymbol("line_offset"),
             proxy_line_offset,
             common_attributes);
     Handle<Proxy> proxy_column_offset =
-        factory->NewProxy(&Accessors::ScriptColumnOffset);
+        factory()->NewProxy(&Accessors::ScriptColumnOffset);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("column_offset"),
+            factory()->LookupAsciiSymbol("column_offset"),
             proxy_column_offset,
             common_attributes);
-    Handle<Proxy> proxy_data = factory->NewProxy(&Accessors::ScriptData);
+    Handle<Proxy> proxy_data = factory()->NewProxy(&Accessors::ScriptData);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("data"),
+            factory()->LookupAsciiSymbol("data"),
             proxy_data,
             common_attributes);
-    Handle<Proxy> proxy_type = factory->NewProxy(&Accessors::ScriptType);
+    Handle<Proxy> proxy_type = factory()->NewProxy(&Accessors::ScriptType);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("type"),
+            factory()->LookupAsciiSymbol("type"),
             proxy_type,
             common_attributes);
     Handle<Proxy> proxy_compilation_type =
-        factory->NewProxy(&Accessors::ScriptCompilationType);
+        factory()->NewProxy(&Accessors::ScriptCompilationType);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("compilation_type"),
+            factory()->LookupAsciiSymbol("compilation_type"),
             proxy_compilation_type,
             common_attributes);
     Handle<Proxy> proxy_line_ends =
-        factory->NewProxy(&Accessors::ScriptLineEnds);
+        factory()->NewProxy(&Accessors::ScriptLineEnds);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("line_ends"),
+            factory()->LookupAsciiSymbol("line_ends"),
             proxy_line_ends,
             common_attributes);
     Handle<Proxy> proxy_context_data =
-        factory->NewProxy(&Accessors::ScriptContextData);
+        factory()->NewProxy(&Accessors::ScriptContextData);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("context_data"),
+            factory()->LookupAsciiSymbol("context_data"),
             proxy_context_data,
             common_attributes);
     Handle<Proxy> proxy_eval_from_script =
-        factory->NewProxy(&Accessors::ScriptEvalFromScript);
+        factory()->NewProxy(&Accessors::ScriptEvalFromScript);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("eval_from_script"),
+            factory()->LookupAsciiSymbol("eval_from_script"),
             proxy_eval_from_script,
             common_attributes);
     Handle<Proxy> proxy_eval_from_script_position =
-        factory->NewProxy(&Accessors::ScriptEvalFromScriptPosition);
+        factory()->NewProxy(&Accessors::ScriptEvalFromScriptPosition);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("eval_from_script_position"),
+            factory()->LookupAsciiSymbol("eval_from_script_position"),
             proxy_eval_from_script_position,
             common_attributes);
     Handle<Proxy> proxy_eval_from_function_name =
-        factory->NewProxy(&Accessors::ScriptEvalFromFunctionName);
+        factory()->NewProxy(&Accessors::ScriptEvalFromFunctionName);
     script_descriptors =
-        factory->CopyAppendProxyDescriptor(
+        factory()->CopyAppendProxyDescriptor(
             script_descriptors,
-            factory->LookupAsciiSymbol("eval_from_function_name"),
+            factory()->LookupAsciiSymbol("eval_from_function_name"),
             proxy_eval_from_function_name,
             common_attributes);

@@ -1443,9 +1440,9 @@
     script_map->set_instance_descriptors(*script_descriptors);

     // Allocate the empty script.
-    Handle<Script> script = factory->NewScript(factory->empty_string());
+ Handle<Script> script = factory()->NewScript(factory()->empty_string());
     script->set_type(Smi::FromInt(Script::TYPE_NATIVE));
-    heap->public_set_empty_script(*script);
+    heap()->public_set_empty_script(*script);
   }
   {
     // Builtin function for OpaqueReference -- a JSValue-based object,
@@ -1454,10 +1451,10 @@
     Handle<JSFunction> opaque_reference_fun =
         InstallFunction(builtins, "OpaqueReference", JS_VALUE_TYPE,
                         JSValue::kSize,
-                        isolate->initial_object_prototype(),
+                        isolate()->initial_object_prototype(),
                         Builtins::kIllegal, false);
     Handle<JSObject> prototype =
-        factory->NewJSObject(isolate->object_function(), TENURED);
+        factory()->NewJSObject(isolate()->object_function(), TENURED);
     SetPrototype(opaque_reference_fun, prototype);
     global_context()->set_opaque_reference_function(*opaque_reference_fun);
   }
@@ -1476,23 +1473,23 @@
                         "InternalArray",
                         JS_ARRAY_TYPE,
                         JSArray::kSize,
-                        isolate->initial_object_prototype(),
+                        isolate()->initial_object_prototype(),
                         Builtins::kArrayCode,
                         true);
     Handle<JSObject> prototype =
-        factory->NewJSObject(isolate->object_function(), TENURED);
+        factory()->NewJSObject(isolate()->object_function(), TENURED);
     SetPrototype(array_function, prototype);

     array_function->shared()->set_construct_stub(
-        isolate->builtins()->builtin(Builtins::kArrayConstructCode));
+        isolate()->builtins()->builtin(Builtins::kArrayConstructCode));
     array_function->shared()->DontAdaptArguments();

     // Make "length" magic on instances.
     Handle<DescriptorArray> array_descriptors =
-        factory->CopyAppendProxyDescriptor(
-            factory->empty_descriptor_array(),
-            factory->length_symbol(),
-            factory->NewProxy(&Accessors::ArrayLength),
+        factory()->CopyAppendProxyDescriptor(
+            factory()->empty_descriptor_array(),
+            factory()->length_symbol(),
+            factory()->NewProxy(&Accessors::ArrayLength),
             static_cast<PropertyAttributes>(DONT_ENUM | DONT_DELETE));

     array_function->initial_map()->set_instance_descriptors(
@@ -1509,7 +1506,7 @@
        i < Natives::GetBuiltinsCount();
        i++) {
     Vector<const char> name = Natives::GetScriptName(i);
-    if (!CompileBuiltin(i)) return false;
+    if (!CompileBuiltin(isolate(), i)) return false;
     // TODO(ager): We really only need to install the JS builtin
     // functions on the builtins object after compiling and running
     // runtime.js.
@@ -1529,9 +1526,9 @@
   InstallBuiltinFunctionIds();

   // Install Function.prototype.call and apply.
-  { Handle<String> key = factory->function_class_symbol();
+  { Handle<String> key = factory()->function_class_symbol();
     Handle<JSFunction> function =
-        Handle<JSFunction>::cast(GetProperty(isolate->global(), key));
+        Handle<JSFunction>::cast(GetProperty(isolate()->global(), key));
     Handle<JSObject> proto =
         Handle<JSObject>(JSObject::cast(function->instance_prototype()));

@@ -1573,7 +1570,7 @@

     // Add initial map.
     Handle<Map> initial_map =
-        factory->NewMap(JS_ARRAY_TYPE, JSRegExpResult::kSize);
+        factory()->NewMap(JS_ARRAY_TYPE, JSRegExpResult::kSize);
     initial_map->set_constructor(*array_constructor);

     // Set prototype on map.
@@ -1587,13 +1584,13 @@
     ASSERT_EQ(1, array_descriptors->number_of_descriptors());

     Handle<DescriptorArray> reresult_descriptors =
-        factory->NewDescriptorArray(3);
+        factory()->NewDescriptorArray(3);

     reresult_descriptors->CopyFrom(0, *array_descriptors, 0);

     int enum_index = 0;
     {
-      FieldDescriptor index_field(heap->index_symbol(),
+      FieldDescriptor index_field(heap()->index_symbol(),
                                   JSRegExpResult::kIndexIndex,
                                   NONE,
                                   enum_index++);
@@ -1601,7 +1598,7 @@
     }

     {
-      FieldDescriptor input_field(heap->input_symbol(),
+      FieldDescriptor input_field(heap()->input_symbol(),
                                   JSRegExpResult::kInputIndex,
                                   NONE,
                                   enum_index++);
@@ -1629,7 +1626,7 @@
 static Handle<JSObject> ResolveBuiltinIdHolder(
     Handle<Context> global_context,
     const char* holder_expr) {
-  Factory* factory = Isolate::Current()->factory();
+  Factory* factory = global_context->GetIsolate()->factory();
   Handle<GlobalObject> global(global_context->global());
   const char* period_pos = strchr(holder_expr, '.');
   if (period_pos == NULL) {
@@ -1648,7 +1645,8 @@
 static void InstallBuiltinFunctionId(Handle<JSObject> holder,
                                      const char* function_name,
                                      BuiltinFunctionId id) {
-  Handle<String> name = FACTORY->LookupAsciiSymbol(function_name);
+  Factory* factory = holder->GetIsolate()->factory();
+  Handle<String> name = factory->LookupAsciiSymbol(function_name);
Object* function_object = holder->GetProperty(*name)->ToObjectUnchecked();
   Handle<JSFunction> function(JSFunction::cast(function_object));
   function->shared()->set_function_data(Smi::FromInt(id));
@@ -1675,13 +1673,14 @@
   F(16, global_context()->regexp_function())


-static FixedArray* CreateCache(int size, JSFunction* factory) {
+static FixedArray* CreateCache(int size, JSFunction* factory_function) {
+  Factory* factory = factory_function->GetIsolate()->factory();
   // Caches are supposed to live for a long time, allocate in old space.
   int array_size = JSFunctionResultCache::kEntriesIndex + 2 * size;
   // Cannot use cast as object is not fully initialized yet.
   JSFunctionResultCache* cache = reinterpret_cast<JSFunctionResultCache*>(
-      *FACTORY->NewFixedArrayWithHoles(array_size, TENURED));
-  cache->set(JSFunctionResultCache::kFactoryIndex, factory);
+      *factory->NewFixedArrayWithHoles(array_size, TENURED));
+  cache->set(JSFunctionResultCache::kFactoryIndex, factory_function);
   cache->MakeZeroSize();
   return cache;
 }
@@ -1720,7 +1719,7 @@

 bool Bootstrapper::InstallExtensions(Handle<Context> global_context,
v8::ExtensionConfiguration* extensions) {
-  Isolate* isolate = Isolate::Current();
+  Isolate* isolate = global_context->GetIsolate();
   BootstrapperActive active;
   SaveContext saved_context(isolate);
   isolate->set_context(*global_context);
@@ -1731,7 +1730,7 @@


 void Genesis::InstallSpecialObjects(Handle<Context> global_context) {
-  Factory* factory = Isolate::Current()->factory();
+  Factory* factory = global_context->GetIsolate()->factory();
   HandleScope scope;
   Handle<JSGlobalObject> js_global(
       JSGlobalObject::cast(global_context->global()));
@@ -1867,9 +1866,10 @@

 bool Genesis::InstallJSBuiltins(Handle<JSBuiltinsObject> builtins) {
   HandleScope scope;
+  Factory* factory = builtins->GetIsolate()->factory();
   for (int i = 0; i < Builtins::NumberOfJavaScriptBuiltins(); i++) {
     Builtins::JavaScript id = static_cast<Builtins::JavaScript>(i);
- Handle<String> name = FACTORY->LookupAsciiSymbol(Builtins::GetName(id)); + Handle<String> name = factory->LookupAsciiSymbol(Builtins::GetName(id)); Object* function_object = builtins->GetPropertyNoExceptionThrown(*name);
     Handle<JSFunction> function
         = Handle<JSFunction>(JSFunction::cast(function_object));
@@ -1918,13 +1918,12 @@
   ASSERT(object->IsInstanceOf(
       FunctionTemplateInfo::cast(object_template->constructor())));

-  Isolate* isolate = Isolate::Current();
   bool pending_exception = false;
   Handle<JSObject> obj =
       Execution::InstantiateObject(object_template, &pending_exception);
   if (pending_exception) {
-    ASSERT(isolate->has_pending_exception());
-    isolate->clear_pending_exception();
+    ASSERT(isolate()->has_pending_exception());
+    isolate()->clear_pending_exception();
     return false;
   }
   TransferObject(obj, object);
@@ -2023,6 +2022,7 @@

 void Genesis::TransferObject(Handle<JSObject> from, Handle<JSObject> to) {
   HandleScope outer;
+  Factory* factory = from->GetIsolate()->factory();

   ASSERT(!from->IsJSArray());
   ASSERT(!to->IsJSArray());
@@ -2032,7 +2032,7 @@

   // Transfer the prototype (new map is needed).
   Handle<Map> old_to_map = Handle<Map>(to->map());
-  Handle<Map> new_to_map = FACTORY->CopyMapDropTransitions(old_to_map);
+  Handle<Map> new_to_map = factory->CopyMapDropTransitions(old_to_map);
   new_to_map->set_prototype(from->map()->prototype());
   to->set_map(*new_to_map);
 }
@@ -2053,10 +2053,10 @@
 }


-Genesis::Genesis(Handle<Object> global_object,
+Genesis::Genesis(Isolate* isolate,
+                 Handle<Object> global_object,
                  v8::Handle<v8::ObjectTemplate> global_template,
-                 v8::ExtensionConfiguration* extensions) {
-  Isolate* isolate = Isolate::Current();
+ v8::ExtensionConfiguration* extensions) : isolate_(isolate) {
   result_ = Handle<Context>::null();
   // If V8 isn't running and cannot be initialized, just return.
   if (!V8::IsRunning() && !V8::Initialize(NULL)) return;
@@ -2086,7 +2086,7 @@
   } else {
     // We get here if there was no context snapshot.
     CreateRoots();
-    Handle<JSFunction> empty_function = CreateEmptyFunction();
+    Handle<JSFunction> empty_function = CreateEmptyFunction(isolate);
     CreateStrictModeFunctionMaps(empty_function);
     Handle<GlobalObject> inner_global;
     Handle<JSGlobalProxy> global_proxy =
=======================================
--- /branches/bleeding_edge/src/bootstrapper.h  Fri Mar 18 13:35:07 2011
+++ /branches/bleeding_edge/src/bootstrapper.h  Thu Apr 14 01:01:19 2011
@@ -93,6 +93,7 @@
   // Creates a JavaScript Global Context with initial object graph.
   // The returned value is a global handle casted to V8Environment*.
   Handle<Context> CreateEnvironment(
+      Isolate* isolate,
       Handle<Object> global_object,
       v8::Handle<v8::ObjectTemplate> global_template,
       v8::ExtensionConfiguration* extensions);
=======================================
--- /branches/bleeding_edge/src/debug.cc        Mon Apr 11 02:39:21 2011
+++ /branches/bleeding_edge/src/debug.cc        Thu Apr 14 01:01:19 2011
@@ -843,6 +843,7 @@
   HandleScope scope(isolate_);
   Handle<Context> context =
       isolate_->bootstrapper()->CreateEnvironment(
+          isolate_,
           Handle<Object>::null(),
           v8::Handle<ObjectTemplate>(),
           NULL);
=======================================
--- /branches/bleeding_edge/src/ia32/code-stubs-ia32.cc Mon Apr 11 02:39:21 2011 +++ /branches/bleeding_edge/src/ia32/code-stubs-ia32.cc Thu Apr 14 01:01:19 2011
@@ -1119,24 +1119,26 @@
     // that does not do a ToNumber conversion on the operands.
     GenerateAddStrings(masm);
   }
+
+  Factory* factory = masm->isolate()->factory();

   // Convert odd ball arguments to numbers.
   NearLabel check, done;
-  __ cmp(edx, FACTORY->undefined_value());
+  __ cmp(edx, factory->undefined_value());
   __ j(not_equal, &check);
   if (Token::IsBitOp(op_)) {
     __ xor_(edx, Operand(edx));
   } else {
-    __ mov(edx, Immediate(FACTORY->nan_value()));
+    __ mov(edx, Immediate(factory->nan_value()));
   }
   __ jmp(&done);
   __ bind(&check);
-  __ cmp(eax, FACTORY->undefined_value());
+  __ cmp(eax, factory->undefined_value());
   __ j(not_equal, &done);
   if (Token::IsBitOp(op_)) {
     __ xor_(eax, Operand(eax));
   } else {
-    __ mov(eax, Immediate(FACTORY->nan_value()));
+    __ mov(eax, Immediate(factory->nan_value()));
   }
   __ bind(&done);

=======================================
--- /branches/bleeding_edge/src/x64/code-stubs-x64.cc Tue Apr 12 06:20:51 2011 +++ /branches/bleeding_edge/src/x64/code-stubs-x64.cc Thu Apr 14 01:01:19 2011
@@ -2330,9 +2330,10 @@
   // Heap::GetNumberStringCache.
   Label is_smi;
   Label load_result_from_cache;
+  Factory* factory = masm->isolate()->factory();
   if (!object_is_smi) {
     __ JumpIfSmi(object, &is_smi);
-    __ CheckMap(object, FACTORY->heap_number_map(), not_found, true);
+    __ CheckMap(object, factory->heap_number_map(), not_found, true);

     STATIC_ASSERT(8 == kDoubleSize);
     __ movl(scratch, FieldOperand(object, HeapNumber::kValueOffset + 4));
@@ -2419,6 +2420,7 @@
   ASSERT(lhs_.is(no_reg) && rhs_.is(no_reg));

   Label check_unequal_objects, done;
+  Factory* factory = masm->isolate()->factory();

   // Compare two smis if required.
   if (include_smi_compare_) {
@@ -2466,7 +2468,6 @@
     // Note: if cc_ != equal, never_nan_nan_ is not used.
     // We cannot set rax to EQUAL until just before return because
     // rax must be unchanged on jump to not_identical.
-
     if (never_nan_nan_ && (cc_ == equal)) {
       __ Set(rax, EQUAL);
       __ ret(0);
@@ -2474,7 +2475,7 @@
       NearLabel heap_number;
// If it's not a heap number, then return equal for (in)equality operator.
       __ Cmp(FieldOperand(rdx, HeapObject::kMapOffset),
-             FACTORY->heap_number_map());
+             factory->heap_number_map());
       __ j(equal, &heap_number);
       if (cc_ != equal) {
         // Call runtime on identical JSObjects.  Otherwise return equal.
@@ -2519,7 +2520,7 @@

         // Check if the non-smi operand is a heap number.
         __ Cmp(FieldOperand(rbx, HeapObject::kMapOffset),
-               FACTORY->heap_number_map());
+               factory->heap_number_map());
         // If heap number, handle it in the slow case.
         __ j(equal, &slow);
         // Return non-equal.  ebx (the lower half of rbx) is not zero.
@@ -3450,10 +3451,11 @@
     MacroAssembler* masm, const RuntimeCallHelper& call_helper) {
   __ Abort("Unexpected fallthrough to CharCodeAt slow case");

+  Factory* factory = masm->isolate()->factory();
   // Index is not a smi.
   __ bind(&index_not_smi_);
   // If index is a heap number, try converting it to an integer.
-  __ CheckMap(index_, FACTORY->heap_number_map(), index_not_number_, true);
+  __ CheckMap(index_, factory->heap_number_map(), index_not_number_, true);
   call_helper.BeforeCall(masm);
   __ push(object_);
   __ push(index_);
=======================================
--- /branches/bleeding_edge/src/x64/macro-assembler-x64.cc Tue Apr 12 06:20:51 2011 +++ /branches/bleeding_edge/src/x64/macro-assembler-x64.cc Thu Apr 14 01:01:19 2011
@@ -650,6 +650,7 @@
   Label leave_exit_frame;
   Label write_back;

+  Factory* factory = isolate()->factory();
   ExternalReference next_address =
       ExternalReference::handle_scope_next_address();
   const int kNextOffset = 0;
@@ -697,7 +698,7 @@

   // Check if the function scheduled an exception.
   movq(rsi, scheduled_exception_address);
-  Cmp(Operand(rsi, 0), FACTORY->the_hole_value());
+  Cmp(Operand(rsi, 0), factory->the_hole_value());
   j(not_equal, &promote_scheduled_exception);

   LeaveApiExitFrame();
@@ -712,7 +713,7 @@

   bind(&empty_result);
   // It was zero; the result is undefined.
-  Move(rax, FACTORY->undefined_value());
+  Move(rax, factory->undefined_value());
   jmp(&prologue);

   // HandleScope limit has changed. Delete allocated extensions.
@@ -1895,7 +1896,7 @@
   Condition is_smi = CheckSmi(object);
   j(is_smi, &ok);
   Cmp(FieldOperand(object, HeapObject::kMapOffset),
-      FACTORY->heap_number_map());
+      isolate()->factory()->heap_number_map());
   Assert(equal, "Operand not a number");
   bind(&ok);
 }
@@ -2152,7 +2153,7 @@
   push(kScratchRegister);
   if (emit_debug_code()) {
     movq(kScratchRegister,
-         FACTORY->undefined_value(),
+         isolate()->factory()->undefined_value(),
          RelocInfo::EMBEDDED_OBJECT);
     cmpq(Operand(rsp, 0), kScratchRegister);
     Check(not_equal, "code object not properly patched");
@@ -2320,7 +2321,7 @@
   // Check the context is a global context.
   if (emit_debug_code()) {
     Cmp(FieldOperand(scratch, HeapObject::kMapOffset),
-        FACTORY->global_context_map());
+        isolate()->factory()->global_context_map());
Check(equal, "JSGlobalObject::global_context should be a global context.");
   }

@@ -2822,7 +2823,7 @@
movq(map, FieldOperand(function, JSFunction::kPrototypeOrInitialMapOffset));
   if (emit_debug_code()) {
     Label ok, fail;
-    CheckMap(map, FACTORY->meta_map(), &fail, false);
+    CheckMap(map, isolate()->factory()->meta_map(), &fail, false);
     jmp(&ok);
     bind(&fail);
     Abort("Global functions must have initial map");

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