Begin to handlify the stub cache.

src/stub-cache.h

 // 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:
 //
 //     * 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 54 matching lines @@
 
 class StubCache {
  public:
   struct Entry {
     String* key;
     Code* value;
   };
 
   void Initialize(bool create_heap_objects);
 
+  Handle<Code> ComputeLoadNonexistent(Handle<String> name,
+                                      Handle<JSObject> receiver);
 
-  // Computes the right stub matching. Inserts the result in the
-  // cache before returning.  This might compile a stub if needed.
-  MUST_USE_RESULT MaybeObject* ComputeLoadNonexistent(
-      String* name,
-      JSObject* receiver);
+  Handle<Code> ComputeLoadField(Handle<String> name,
+                                Handle<JSObject> receiver,
+                                Handle<JSObject> holder,
+                                int field_index);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadField(String* name,
-                                                JSObject* receiver,
-                                                JSObject* holder,
-                                                int field_index);
+  Handle<Code> ComputeLoadCallback(Handle<String> name,
+                                   Handle<JSObject> receiver,
+                                   Handle<JSObject> holder,
+                                   Handle<AccessorInfo> callback);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadCallback(
-      String* name,
-      JSObject* receiver,
-      JSObject* holder,
-      AccessorInfo* callback);
+  Handle<Code> ComputeLoadConstant(Handle<String> name,
+                                   Handle<JSObject> receiver,
+                                   Handle<JSObject> holder,
+                                   Handle<Object> value);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadConstant(String* name,
-                                                   JSObject* receiver,
-                                                   JSObject* holder,
-                                                   Object* value);
+  Handle<Code> ComputeLoadInterceptor(Handle<String> name,
+                                      Handle<JSObject> receiver,
+                                      Handle<JSObject> holder);
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadInterceptor(
-      String* name,
-      JSObject* receiver,
-      JSObject* holder);
+  Handle<Code> ComputeLoadNormal();
 
-  MUST_USE_RESULT MaybeObject* ComputeLoadNormal();
-
-
-  MUST_USE_RESULT MaybeObject* ComputeLoadGlobal(
-      String* name,
-      JSObject* receiver,
-      GlobalObject* holder,
-      JSGlobalPropertyCell* cell,
-      bool is_dont_delete);
+  Handle<Code> ComputeLoadGlobal(Handle<String> name,
+                                 Handle<JSObject> receiver,
+                                 Handle<GlobalObject> holder,
+                                 Handle<JSGlobalPropertyCell> cell,
+                                 bool is_dont_delete);
 
 
   // ---
 
   MUST_USE_RESULT MaybeObject* ComputeKeyedLoadField(String* name,
                                                      JSObject* receiver,
                                                      JSObject* holder,
                                                      int field_index);
 
   MUST_USE_RESULT MaybeObject* ComputeKeyedLoadCallback(
@@ skipping 200 matching lines @@
     switch (table) {
       case StubCache::kPrimary: return StubCache::primary_;
       case StubCache::kSecondary: return StubCache::secondary_;
     }
     UNREACHABLE();
     return NULL;
   }
 
   Isolate* isolate() { return isolate_; }
   Heap* heap() { return isolate()->heap(); }
+  Factory* factory() { return isolate()->factory(); }
 
  private:
   explicit StubCache(Isolate* isolate);
 
   friend class Isolate;
   friend class SCTableReference;
   static const int kPrimaryTableSize = 2048;
   static const int kSecondaryTableSize = 512;
   Entry primary_[kPrimaryTableSize];
   Entry secondary_[kSecondaryTableSize];
@@ skipping 60 matching lines @@
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, LoadPropertyWithInterceptorForLoad);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, LoadPropertyWithInterceptorForCall);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, StoreInterceptorProperty);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, CallInterceptorProperty);
 DECLARE_RUNTIME_FUNCTION(MaybeObject*, KeyedLoadPropertyWithInterceptor);
 
 
 // The stub compiler compiles stubs for the stub cache.
 class StubCompiler BASE_EMBEDDED {
  public:
-  StubCompiler()
-      : scope_(), masm_(Isolate::Current(), NULL, 256), failure_(NULL) { }
+  explicit StubCompiler(Isolate* isolate)
+      : isolate_(isolate), masm_(isolate, NULL, 256), failure_(NULL) { }
 
   MUST_USE_RESULT MaybeObject* CompileCallInitialize(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallPreMonomorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallNormal(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMegamorphic(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallArguments(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallMiss(Code::Flags flags);
 #ifdef ENABLE_DEBUGGER_SUPPORT
   MUST_USE_RESULT MaybeObject* CompileCallDebugBreak(Code::Flags flags);
   MUST_USE_RESULT MaybeObject* CompileCallDebugPrepareStepIn(Code::Flags flags);
@@ skipping 135 matching lines @@
                                Register scratch1,
                                Register scratch2,
                                Register scratch3,
                                String* name,
                                Label* miss);
 
   static void LookupPostInterceptor(JSObject* holder,
                                     String* name,
                                     LookupResult* lookup);
 
-  Isolate* isolate() { return scope_.isolate(); }
+  Isolate* isolate() { return isolate_; }
   Heap* heap() { return isolate()->heap(); }
   Factory* factory() { return isolate()->factory(); }
 
  private:
-  HandleScope scope_;
+  Isolate* isolate_;
   MacroAssembler masm_;
   Failure* failure_;
 };
 
 
 class LoadStubCompiler: public StubCompiler {
  public:
+  explicit LoadStubCompiler(Isolate* isolate) : StubCompiler(isolate) { }
+
   MUST_USE_RESULT MaybeObject* CompileLoadNonexistent(String* name,
                                                       JSObject* object,
                                                       JSObject* last);
 
   MUST_USE_RESULT MaybeObject* CompileLoadField(JSObject* object,
                                                 JSObject* holder,
                                                 int index,
                                                 String* name);
 
   MUST_USE_RESULT MaybeObject* CompileLoadCallback(String* name,
@@ skipping 16 matching lines @@
                                                  String* name,
                                                  bool is_dont_delete);
 
  private:
   MUST_USE_RESULT MaybeObject* GetCode(PropertyType type, String* name);
 };
 
 
 class KeyedLoadStubCompiler: public StubCompiler {
  public:
+  explicit KeyedLoadStubCompiler(Isolate* isolate) : StubCompiler(isolate) { }
+
   MUST_USE_RESULT MaybeObject* CompileLoadField(String* name,
                                                 JSObject* object,
                                                 JSObject* holder,
                                                 int index);
 
   MUST_USE_RESULT MaybeObject* CompileLoadCallback(String* name,
                                                    JSObject* object,
                                                    JSObject* holder,
                                                    AccessorInfo* callback);
 
@@ skipping 27 matching lines @@
 
  private:
   MaybeObject* GetCode(PropertyType type,
                        String* name,
                        InlineCacheState state = MONOMORPHIC);
 };
 
 
 class StoreStubCompiler: public StubCompiler {
  public:
-  explicit StoreStubCompiler(StrictModeFlag strict_mode)
-    : strict_mode_(strict_mode) { }
+  StoreStubCompiler(Isolate* isolate, StrictModeFlag strict_mode)
+      : StubCompiler(isolate), strict_mode_(strict_mode) { }
 
   MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
                                                  int index,
                                                  Map* transition,
                                                  String* name);
 
   MUST_USE_RESULT MaybeObject* CompileStoreCallback(JSObject* object,
                                                     AccessorInfo* callbacks,
                                                     String* name);
   MUST_USE_RESULT MaybeObject* CompileStoreInterceptor(JSObject* object,
                                                        String* name);
   MUST_USE_RESULT MaybeObject* CompileStoreGlobal(GlobalObject* object,
                                                   JSGlobalPropertyCell* holder,
                                                   String* name);
 
 
  private:
   MaybeObject* GetCode(PropertyType type, String* name);
 
   StrictModeFlag strict_mode_;
 };
 
 
 class KeyedStoreStubCompiler: public StubCompiler {
  public:
-  explicit KeyedStoreStubCompiler(StrictModeFlag strict_mode)
-    : strict_mode_(strict_mode) { }
+  KeyedStoreStubCompiler(Isolate* isolate, StrictModeFlag strict_mode)
+      : StubCompiler(isolate), strict_mode_(strict_mode) { }
 
   MUST_USE_RESULT MaybeObject* CompileStoreField(JSObject* object,
                                                  int index,
                                                  Map* transition,
                                                  String* name);
 
   MUST_USE_RESULT MaybeObject* CompileStoreElement(Map* receiver_map);
 
   MUST_USE_RESULT MaybeObject* CompileStoreMegamorphic(
       MapList* receiver_maps,
@@ skipping 29 matching lines @@
   V(StringCharAt)                               \
   V(StringFromCharCode)                         \
   V(MathFloor)                                  \
   V(MathAbs)
 
 
 class CallOptimization;
 
 class CallStubCompiler: public StubCompiler {
  public:
-  CallStubCompiler(int argc,
+  CallStubCompiler(Isolate* isolate,
+                   int argc,
                    Code::Kind kind,
                    Code::ExtraICState extra_ic_state,
                    InlineCacheHolderFlag cache_holder);
 
   MUST_USE_RESULT MaybeObject* CompileCallField(
       JSObject* object,
       JSObject* holder,
       int index,
       String* name);
 
@@ skipping 72 matching lines @@
                                     Label* miss);
 
   // Generates a jump to CallIC miss stub. Returns Failure if the jump cannot
   // be generated.
   MUST_USE_RESULT MaybeObject* GenerateMissBranch();
 };
 
 
 class ConstructStubCompiler: public StubCompiler {
  public:
-  explicit ConstructStubCompiler() {}
+  explicit ConstructStubCompiler(Isolate* isolate) : StubCompiler(isolate) { }
 
   MUST_USE_RESULT MaybeObject* CompileConstructStub(JSFunction* function);
 
  private:
   MaybeObject* GetCode();
 };
 
 
 // Holds information about possible function call optimizations.
 class CallOptimization BASE_EMBEDDED {
@@ skipping 40 matching lines @@
   JSFunction* constant_function_;
   bool is_simple_api_call_;
   FunctionTemplateInfo* expected_receiver_type_;
   CallHandlerInfo* api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_