Allow to define accessors on objects.

src/objects.h

 // Copyright 2006-2009 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 1230 matching lines @@
 
   inline PropertyAttributes GetPropertyAttribute(String* name);
   PropertyAttributes GetPropertyAttributeWithReceiver(JSObject* receiver,
                                                       String* name);
   PropertyAttributes GetLocalPropertyAttribute(String* name);
 
   Object* DefineAccessor(String* name, bool is_getter, JSFunction* fun,
                          PropertyAttributes attributes);
   Object* LookupAccessor(String* name, bool is_getter);
 
+  Object* DefineAccessor(AccessorInfo* info);
+
   // Used from Object::GetProperty().
   Object* GetPropertyWithFailedAccessCheck(Object* receiver,
                                            LookupResult* result,
                                            String* name,
                                            PropertyAttributes* attributes);
   Object* GetPropertyWithInterceptor(JSObject* receiver,
                                      String* name,
                                      PropertyAttributes* attributes);
   Object* GetPropertyPostInterceptor(JSObject* receiver,
                                      String* name,
@@ skipping 102 matching lines @@
   // Lookup a property.  If found, the result is valid and has
   // detailed information.
   void LocalLookup(String* name, LookupResult* result);
   void Lookup(String* name, LookupResult* result);
 
   // The following lookup functions skip interceptors.
   void LocalLookupRealNamedProperty(String* name, LookupResult* result);
   void LookupRealNamedProperty(String* name, LookupResult* result);
   void LookupRealNamedPropertyInPrototypes(String* name, LookupResult* result);
   void LookupCallbackSetterInPrototypes(String* name, LookupResult* result);
-  Object* LookupCallbackSetterInPrototypes(uint32_t index);
+  bool SetElementWithCallbackSetterInPrototypes(uint32_t index, Object* value);
   void LookupCallback(String* name, LookupResult* result);
 
   // Returns the number of properties on this object filtering out properties
   // with the specified attributes (ignoring interceptors).
   int NumberOfLocalProperties(PropertyAttributes filter);
   // Returns the number of enumerable properties (ignoring interceptors).
   int NumberOfEnumProperties();
   // Fill in details for properties into storage starting at the specified
   // index.
   void GetLocalPropertyNames(FixedArray* storage, int index);
@@ skipping 148 matching lines @@
   // Layout description.
   static const int kPropertiesOffset = HeapObject::kHeaderSize;
   static const int kElementsOffset = kPropertiesOffset + kPointerSize;
   static const int kHeaderSize = kElementsOffset + kPointerSize;
 
   STATIC_CHECK(kHeaderSize == Internals::kJSObjectHeaderSize);
 
   Object* GetElementWithInterceptor(JSObject* receiver, uint32_t index);
 
  private:
+  Object* GetElementWithCallback(Object* receiver,
+                                 Object* structure,
+                                 uint32_t index,
+                                 Object* holder);
+  Object* SetElementWithCallback(Object* structure,
+                                 uint32_t index,
+                                 Object* value,
+                                 JSObject* holder);
   Object* SetElementWithInterceptor(uint32_t index, Object* value);
   Object* SetElementWithoutInterceptor(uint32_t index, Object* value);
 
   Object* GetElementPostInterceptor(JSObject* receiver, uint32_t index);
 
   Object* DeletePropertyPostInterceptor(String* name, DeleteMode mode);
   Object* DeletePropertyWithInterceptor(String* name);
 
   Object* DeleteElementPostInterceptor(uint32_t index, DeleteMode mode);
   Object* DeleteElementWithInterceptor(uint32_t index);
@@ skipping 10 matching lines @@
       String* name,
       bool continue_search);
   PropertyAttributes GetPropertyAttribute(JSObject* receiver,
                                           LookupResult* result,
                                           String* name,
                                           bool continue_search);
 
   // Returns true if most of the elements backing storage is used.
   bool HasDenseElements();
 
+  bool CanSetCallback(String* name);
+  Object* SetElementCallback(uint32_t index,
+                             Object* structure,
+                             PropertyAttributes attributes);
+  Object* SetPropertyCallback(String* name,
+                              Object* structure,
+                              PropertyAttributes attributes);
   Object* DefineGetterSetter(String* name, PropertyAttributes attributes);
 
   void LookupInDescriptor(String* name, LookupResult* result);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSObject);
 };
 
 
 // Abstract super class arrays. It provides length behavior.
 class Array: public HeapObject {
@@ skipping 3581 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_