Remove ForceDelete

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 1571 matching lines @@
 enum AccessorComponent {
   ACCESSOR_GETTER,
   ACCESSOR_SETTER
 };
 
 
 // JSReceiver includes types on which properties can be defined, i.e.,
 // JSObject and JSProxy.
 class JSReceiver: public HeapObject {
  public:
-  enum DeleteMode {
-    NORMAL_DELETION,
-    STRICT_DELETION,
-    FORCE_DELETION
-  };
-
   DECLARE_CAST(JSReceiver)
 
   MUST_USE_RESULT static MaybeHandle<Object> SetElement(
       Handle<JSReceiver> object,
       uint32_t index,
       Handle<Object> value,
       PropertyAttributes attributes,
       StrictMode strict_mode);
 
   // Implementation of [[HasProperty]], ECMA-262 5th edition, section 8.12.6.
   MUST_USE_RESULT static inline Maybe<bool> HasProperty(
       Handle<JSReceiver> object, Handle<Name> name);
   MUST_USE_RESULT static inline Maybe<bool> HasOwnProperty(Handle<JSReceiver>,
                                                            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,
-      DeleteMode mode = NORMAL_DELETION);
+      Handle<JSReceiver> object, Handle<Name> name,
+      StrictMode strict_mode = SLOPPY);
   MUST_USE_RESULT static MaybeHandle<Object> DeleteElement(
-      Handle<JSReceiver> object,
-      uint32_t index,
-      DeleteMode mode = NORMAL_DELETION);
+      Handle<JSReceiver> object, uint32_t index,
+      StrictMode strict_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();
 
   // Returns the constructor name (the name (possibly, inferred name) of the
   // function that was used to instantiate the object).
   String* constructor_name();
@@ skipping 698 matching lines @@
   MUST_USE_RESULT static MaybeHandle<Object> SetPropertyWithFailedAccessCheck(
       LookupIterator* it, Handle<Object> value, StrictMode strict_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,
-      DeleteMode mode);
+      Handle<JSObject> object, Handle<Name> name, StrictMode strict_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeletePropertyWithInterceptor(
       Handle<JSObject> holder, Handle<JSObject> receiver, Handle<Name> name);
 
-  // Deletes the named property in a normalized object.
-  static Handle<Object> DeleteNormalizedProperty(Handle<JSObject> object,
-                                                 Handle<Name> name,
-                                                 DeleteMode mode);
+  // 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,
-      DeleteMode mode);
+      Handle<JSObject> object, uint32_t index, StrictMode strict_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();
@@ skipping 1180 matching lines @@
 
   // Set the details for entry.
   void DetailsAtPut(int entry, PropertyDetails value) {
     this->set(DerivedHashTable::EntryToIndex(entry) + 2, value.AsSmi());
   }
 
   // Sorting support
   void CopyValuesTo(FixedArray* elements);
 
   // Delete a property from the dictionary.
-  static Handle<Object> DeleteProperty(
-      Handle<Derived> dictionary,
-      int entry,
-      JSObject::DeleteMode mode);
+  static Handle<Object> DeleteProperty(Handle<Derived> dictionary, int entry);
 
   // Attempt to shrink the dictionary after deletion of key.
   MUST_USE_RESULT static inline Handle<Derived> Shrink(
       Handle<Derived> dictionary,
       Key key) {
     return DerivedHashTable::Shrink(dictionary, key);
   }
 
   // Returns the number of elements in the dictionary filtering out properties
   // with the specified attributes.
@@ skipping 6263 matching lines @@
       uint32_t index,
       Handle<Object> value,
       StrictMode strict_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,
-      DeleteMode mode);
+      Handle<JSProxy> proxy, Handle<Name> name, StrictMode strict_mode);
   MUST_USE_RESULT static MaybeHandle<Object> DeleteElementWithHandler(
-      Handle<JSProxy> proxy,
-      uint32_t index,
-      DeleteMode mode);
+      Handle<JSProxy> proxy, uint32_t index, StrictMode strict_mode);
 
   MUST_USE_RESULT Object* GetIdentityHash();
 
   static Handle<Smi> GetOrCreateIdentityHash(Handle<JSProxy> proxy);
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(JSProxy);
 };
 
 
 class JSFunctionProxy: public JSProxy {
@@ skipping 1091 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_