crankshaft support for api method calls

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 986 matching lines @@
 
   enum HolderLookup {
     kHolderNotFound,
     kHolderIsReceiver,
     kHolderIsPrototypeOfMap
   };
   // Returns a map whose prototype has the expected type in the
   // prototype chain between the two arguments
   // null will be returned if the first argument has that property
   // lookup will be set accordingly
+  Handle<Map> LookupHolderOfExpectedType(Handle<Map> receiver_map,
+                                         Handle<Map> object_map,
+                                         Handle<Map> holder_map,
+                                         HolderLookup* holder_lookup) const;
   Handle<Map> LookupHolderOfExpectedType(Handle<JSObject> receiver,
                                          Handle<JSObject> object,
                                          Handle<JSObject> holder,
-                                         HolderLookup* holder_lookup) const;
+                                         HolderLookup* holder_lookup) const {
+    Handle<Map> receiver_map(receiver->map());
+    Handle<Map> object_map(object->map());
+    Handle<Map> holder_map(holder->map());
+    return LookupHolderOfExpectedType(
+        receiver_map, object_map, holder_map, holder_lookup);
+  }
 
   bool IsCompatibleReceiver(Object* receiver) {
     ASSERT(is_simple_api_call());
     if (expected_receiver_type_.is_null()) return true;
     return expected_receiver_type_->IsTemplateFor(receiver);
   }
 
  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_