load ics for js api accessors

src/stub-cache.h

Index: src/stub-cache.h
diff --git a/src/stub-cache.h b/src/stub-cache.h
index 25009b9a66b4e670c2f7809223d343e2e2cf3b61..a267100df58b9460f646e9f9176082518e9bb0f2 100644
--- a/src/stub-cache.h
+++ b/src/stub-cache.h
@@ -48,6 +48,8 @@ namespace internal {
 // invalidate the cache whenever a prototype map is changed.  The stub
 // validates the map chain as in the mono-morphic case.
 
+
+class CallOptimization;
 class SmallMapList;
 class StubCache;
 
@@ -136,6 +138,11 @@ class StubCache {
                                    Handle<JSObject> holder,
                                    Handle<ExecutableAccessorInfo> callback);
 
+  Handle<Code> ComputeLoadCallback(Handle<Name> name,
+                                   Handle<JSObject> object,
+                                   Handle<JSObject> holder,
+                                   const CallOptimization& call_optimization);
+
   Handle<Code> ComputeLoadViaGetter(Handle<Name> name,
                                     Handle<JSObject> object,
                                     Handle<JSObject> holder,
@@ -173,6 +180,12 @@ class StubCache {
       Handle<JSObject> holder,
       Handle<ExecutableAccessorInfo> callback);
 
+  Handle<Code> ComputeKeyedLoadCallback(
+      Handle<Name> name,
+      Handle<JSObject> object,
+      Handle<JSObject> holder,
+      const CallOptimization& call_optimization);
+
   Handle<Code> ComputeKeyedLoadConstant(Handle<Name> name,
                                         Handle<JSObject> object,
                                         Handle<JSObject> holder,
@@ -705,6 +718,11 @@ class BaseLoadStubCompiler: public BaseLoadStoreStubCompiler {
                                    Handle<Name> name,
                                    Handle<ExecutableAccessorInfo> callback);
 
+  Handle<Code> CompileLoadCallback(Handle<JSObject> object,
+                                   Handle<JSObject> holder,
+                                   Handle<Name> name,
+                                   const CallOptimization& call_optimization);
+
   Handle<Code> CompileLoadConstant(Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
@@ -730,7 +748,7 @@ class BaseLoadStubCompiler: public BaseLoadStoreStubCompiler {
                                    Handle<JSObject> holder,
                                    Handle<Name> name,
                                    Label* success,
-                                   Handle<ExecutableAccessorInfo> callback);
+                                   Handle<Object> callback);
   void NonexistentHandlerFrontend(Handle<JSObject> object,
                                   Handle<JSObject> last,
                                   Handle<Name> name,
@@ -744,6 +762,7 @@ class BaseLoadStubCompiler: public BaseLoadStoreStubCompiler {
   void GenerateLoadConstant(Handle<Object> value);
   void GenerateLoadCallback(Register reg,
                             Handle<ExecutableAccessorInfo> callback);
+  void GenerateLoadCallback(const CallOptimization& call_optimization);
   void GenerateLoadInterceptor(Register holder_reg,
                                Handle<JSObject> object,
                                Handle<JSObject> holder,
@@ -1028,8 +1047,6 @@ class KeyedStoreStubCompiler: public BaseStoreStubCompiler {
   V(ArrayCode)
 
 
-class CallOptimization;
-
 class CallStubCompiler: public StubCompiler {
  public:
   CallStubCompiler(Isolate* isolate,
@@ -1161,6 +1178,12 @@ class CallOptimization BASE_EMBEDDED {
   int GetPrototypeDepthOfExpectedType(Handle<JSObject> object,
                                       Handle<JSObject> holder) const;
 
+  bool IsCompatibleReceiver(Object* receiver) {
+    ASSERT(is_simple_api_call());
+    if (expected_receiver_type_.is_null()) return true;
+    return receiver->IsInstanceOf(*expected_receiver_type_);
+  }
+
  private:
   void Initialize(Handle<JSFunction> function);