Lines Matching defs:extensible
1395 // 3. Let extensible be the value of the [[Extensible]] internal slot of O.
1397 bool extensible = JSObject::IsExtensible(object);
1400 isolate, it, extensible, desc, ¤t, should_throw, Handle<Name>());
1406 Isolate* isolate, bool extensible, PropertyDescriptor* desc,
1412 isolate, nullptr, extensible, desc, current, should_throw, property_name);
1418 Isolate* isolate, LookupIterator* it, bool extensible,
1433 // 2a. If extensible is false, return false.
1434 if (!extensible) {
1966 Maybe<bool> extensible = JSReceiver::IsExtensible(receiver);
1967 MAYBE_RETURN(extensible, Nothing<bool>());
1968 if (extensible.FromJust()) return Just(false);
4150 // be extensible.
4151 // TODO(adamk): Extend the NormalizedMapCache to handle non-extensible maps.
4349 // Create a new map, since other objects with this map may be extensible.
4350 // TODO(adamk): Extend the NormalizedMapCache to handle non-extensible maps.
5030 // * If target is non-extensible, [[SetPrototypeOf]] must return false,