Handle Delete of element with LookupIterator

src/objects.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 1640 matching lines @@
                                                            Handle<Name> name);
   MUST_USE_RESULT static inline Maybe<bool> HasElement(
       Handle<JSReceiver> object, uint32_t index);
   MUST_USE_RESULT static inline Maybe<bool> HasOwnElement(
       Handle<JSReceiver> object, uint32_t index);
 
   // Implementation of [[Delete]], ECMA-262 5th edition, section 8.12.7.
   MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
       Handle<JSReceiver> object, Handle<Name> name,
       LanguageMode language_mode = SLOPPY);
+  MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
+      LookupIterator* it, LanguageMode language_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeleteElement(
       Handle<JSReceiver> object, uint32_t index,
       LanguageMode language_mode = SLOPPY);
 
   // Tests for the fast common case for property enumeration.
   bool IsSimpleEnum();
 
   // Returns the class name ([[Class]] property in the specification).
   String* class_name();
 
@@ skipping 647 matching lines @@
 
   MUST_USE_RESULT static MaybeHandle<Object> SetPropertyWithFailedAccessCheck(
       LookupIterator* it, Handle<Object> value, LanguageMode language_mode);
 
   // Add a property to a slow-case object.
   static void AddSlowProperty(Handle<JSObject> object,
                               Handle<Name> name,
                               Handle<Object> value,
                               PropertyAttributes attributes);
 
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteProperty(
-      Handle<JSObject> object, Handle<Name> name, LanguageMode language_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeletePropertyWithInterceptor(
-      Handle<JSObject> holder, Handle<JSObject> receiver, Handle<Name> name);
+      LookupIterator* it);
 
   // Deletes an existing named property in a normalized object.
   static void DeleteNormalizedProperty(Handle<JSObject> object,
                                        Handle<Name> name);
 
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElement(
-      Handle<JSObject> object, uint32_t index, LanguageMode language_mode);
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElementWithInterceptor(
-      Handle<JSObject> object,
-      uint32_t index);
-
   bool ReferencesObjectFromElements(FixedArray* elements,
                                     ElementsKind kind,
                                     Object* object);
 
   // Returns true if most of the elements backing storage is used.
   bool HasDenseElements();
 
   // Gets the current elements capacity and the number of used elements.
   void GetElementsCapacityAndUsage(int* capacity, int* used);
 
@@ skipping 7629 matching lines @@
 
  private:
   friend class JSReceiver;
 
   MUST_USE_RESULT static inline MaybeHandle<Object> SetElementWithHandler(
       Handle<JSProxy> proxy, Handle<JSReceiver> receiver, uint32_t index,
       Handle<Object> value, LanguageMode language_mode);
 
   MUST_USE_RESULT static Maybe<bool> HasPropertyWithHandler(
       Handle<JSProxy> proxy, Handle<Name> name);
-  MUST_USE_RESULT static inline Maybe<bool> HasElementWithHandler(
-      Handle<JSProxy> proxy, uint32_t index);
 
   MUST_USE_RESULT static MaybeHandle<Object> DeletePropertyWithHandler(
       Handle<JSProxy> proxy, Handle<Name> name, LanguageMode language_mode);
-  MUST_USE_RESULT static MaybeHandle<Object> DeleteElementWithHandler(
-      Handle<JSProxy> proxy, uint32_t index, LanguageMode language_mode);
 
   MUST_USE_RESULT Object* GetIdentityHash();
 
   static Handle<Smi> GetOrCreateIdentityHash(Handle<JSProxy> proxy);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSProxy);
 };
 
 
 class JSFunctionProxy: public JSProxy {
@@ skipping 1100 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_