Implement API functions for handling the AccessorDescriptor

include/v8.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 1439 matching lines @@
   V8EXPORT bool Delete(uint32_t index);
 
   V8EXPORT bool SetAccessor(Handle<String> name,
                             AccessorGetter getter,
                             AccessorSetter setter = 0,
                             Handle<Value> data = Handle<Value>(),
                             AccessControl settings = DEFAULT,
                             PropertyAttribute attribute = None);
 
   /**
+   * Defines the get/set properties of the property's
+   * AccessorDescriptor.
+   */
+  V8EXPORT bool DefineGetter(Handle<String> name, Handle<Value> fun);
+  V8EXPORT bool DefineSetter(Handle<String> name, Handle<Value> fun);
+
+  /**
+   * Returns a function which is binded to the property by the
+   * DefineGetter/Setter method.
+   * Returns undefined value if the AccessorDescriptor's get/set
+   * properties are not defined.
+   */
+  V8EXPORT Local<Value> LookupGetter(Handle<String> name);
+  V8EXPORT Local<Value> LookupSetter(Handle<String> name);
+
+  /**
    * Returns an array containing the names of the enumerable properties
    * of this object, including properties from prototype objects.  The
    * array returned by this method contains the same values as would
    * be enumerated by a for-in statement over this object.
    */
   V8EXPORT Local<Array> GetPropertyNames();
 
   /**
    * This function has the same functionality as GetPropertyNames but
    * the returned array doesn't contain the names of properties from
@@ skipping 2633 matching lines @@
 
 
 }  // namespace v8
 
 
 #undef V8EXPORT
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_