load ics for js api accessors

src/stub-cache.h

 // 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 30 matching lines @@
 
 
 // The stub cache is used for megamorphic calls and property accesses.
 // It maps (map, name, type)->Code*
 
 // The design of the table uses the inline cache stubs used for
 // mono-morphic calls. The beauty of this, we do not have to
 // 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;
 
 
 class SCTableReference {
  public:
   Address address() const { return address_; }
 
  private:
   explicit SCTableReference(Address address) : address_(address) {}
@@ skipping 68 matching lines @@
                                 Handle<JSObject> object,
                                 Handle<JSObject> holder,
                                 PropertyIndex field_index,
                                 Representation representation);
 
   Handle<Code> ComputeLoadCallback(Handle<Name> name,
                                    Handle<JSObject> object,
                                    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,
                                     Handle<JSFunction> getter);
 
   Handle<Code> ComputeLoadConstant(Handle<Name> name,
                                    Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    Handle<Object> value);
 
@@ skipping 17 matching lines @@
                                      Handle<JSObject> holder,
                                      PropertyIndex field_index,
                                      Representation representation);
 
   Handle<Code> ComputeKeyedLoadCallback(
       Handle<Name> name,
       Handle<JSObject> object,
       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,
                                         Handle<Object> value);
 
   Handle<Code> ComputeKeyedLoadInterceptor(Handle<Name> name,
                                            Handle<JSObject> object,
                                            Handle<JSObject> holder);
 
   // ---
@@ skipping 512 matching lines @@
                                 Handle<JSObject> holder,
                                 Handle<Name> name,
                                 PropertyIndex index,
                                 Representation representation);
 
   Handle<Code> CompileLoadCallback(Handle<JSObject> object,
                                    Handle<JSObject> holder,
                                    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,
                                    Handle<Object> value);
 
   Handle<Code> CompileLoadInterceptor(Handle<JSObject> object,
                                       Handle<JSObject> holder,
                                       Handle<Name> name);
 
  protected:
   virtual Register HandlerFrontendHeader(Handle<JSObject> object,
                                          Register object_reg,
                                          Handle<JSObject> holder,
                                          Handle<Name> name,
                                          Label* miss);
 
   virtual void HandlerFrontendFooter(Handle<Name> name,
                                      Label* success,
                                      Label* miss);
 
   Register CallbackHandlerFrontend(Handle<JSObject> object,
                                    Register object_reg,
                                    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,
                                   Label* success,
                                   Handle<GlobalObject> global);
 
   void GenerateLoadField(Register reg,
                          Handle<JSObject> holder,
                          PropertyIndex field,
                          Representation representation);
   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,
                                LookupResult* lookup,
                                Handle<Name> name);
   void GenerateLoadPostInterceptor(Register reg,
                                    Handle<JSObject> interceptor_holder,
                                    Handle<Name> name,
                                    LookupResult* lookup);
 
@@ skipping 264 matching lines @@
   V(StringFromCharCode)                         \
   V(MathFloor)                                  \
   V(MathAbs)                                    \
   V(ArrayCode)
 
 
 #define SITE_SPECIFIC_CALL_GENERATORS(V)        \
   V(ArrayCode)
 
 
-class CallOptimization;
-
 class CallStubCompiler: public StubCompiler {
  public:
   CallStubCompiler(Isolate* isolate,
                    int argc,
                    Code::Kind kind,
                    Code::ExtraICState extra_state,
                    InlineCacheHolderFlag cache_holder);
 
   Handle<Code> CompileCallField(Handle<JSObject> object,
                                 Handle<JSObject> holder,
@@ skipping 111 matching lines @@
   Handle<CallHandlerInfo> api_call_info() const {
     ASSERT(is_simple_api_call());
     return api_call_info_;
   }
 
   // Returns the depth of the object having the expected type in the
   // prototype chain between the two arguments.
   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);
 
   // Determines whether the given function can be called using the
   // fast api call builtin.
   void AnalyzePossibleApiFunction(Handle<JSFunction> function);
 
   Handle<JSFunction> constant_function_;
   bool is_simple_api_call_;
   Handle<FunctionTemplateInfo> expected_receiver_type_;
   Handle<CallHandlerInfo> api_call_info_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_STUB_CACHE_H_