Line data    Source code

       1             : // Copyright 2018 the V8 project authors. All rights reserved.
       2             : // Use of this source code is governed by a BSD-style license that can be
       3             : // found in the LICENSE file.
       4             : 
       5             : #ifndef V8_OBJECTS_PROTOTYPE_INFO_INL_H_
       6             : #define V8_OBJECTS_PROTOTYPE_INFO_INL_H_
       7             : 
       8             : #include "src/objects/prototype-info.h"
       9             : 
      10             : #include "src/heap/heap-write-barrier-inl.h"
      11             : #include "src/objects/map.h"
      12             : #include "src/objects/maybe-object.h"
      13             : 
      14             : // Has to be the last include (doesn't have include guards):
      15             : #include "src/objects/object-macros.h"
      16             : 
      17             : namespace v8 {
      18             : namespace internal {
      19             : 
      20    86776560 : OBJECT_CONSTRUCTORS_IMPL(PrototypeInfo, Struct)
      21             : 
      22    43388334 : CAST_ACCESSOR(PrototypeInfo)
      23             : 
      24         131 : Map PrototypeInfo::ObjectCreateMap() {
      25         262 :   return Map::cast(object_create_map()->GetHeapObjectAssumeWeak());
      26             : }
      27             : 
      28             : // static
      29      118775 : void PrototypeInfo::SetObjectCreateMap(Handle<PrototypeInfo> info,
      30             :                                        Handle<Map> map) {
      31      237550 :   info->set_object_create_map(HeapObjectReference::Weak(*map));
      32      118775 : }
      33             : 
      34             : bool PrototypeInfo::HasObjectCreateMap() {
      35             :   MaybeObject cache = object_create_map();
      36             :   return cache->IsWeak();
      37             : }
      38             : 
      39     3407756 : ACCESSORS(PrototypeInfo, module_namespace, Object, kJSModuleNamespaceOffset)
      40    27013435 : ACCESSORS(PrototypeInfo, prototype_users, Object, kPrototypeUsersOffset)
      41      742234 : WEAK_ACCESSORS(PrototypeInfo, object_create_map, kObjectCreateMapOffset)
      42     7603018 : SMI_ACCESSORS(PrototypeInfo, registry_slot, kRegistrySlotOffset)
      43    59877002 : SMI_ACCESSORS(PrototypeInfo, bit_field, kBitFieldOffset)
      44    58553213 : BOOL_ACCESSORS(PrototypeInfo, bit_field, should_be_fast_map, kShouldBeFastBit)
      45             : 
      46      125659 : void PrototypeUsers::MarkSlotEmpty(WeakArrayList array, int index) {
      47             :   DCHECK_GT(index, 0);
      48             :   DCHECK_LT(index, array->length());
      49             :   // Chain the empty slots into a linked list (each empty slot contains the
      50             :   // index of the next empty slot).
      51      125659 :   array->Set(index, MaybeObject::FromObject(empty_slot_index(array)));
      52             :   set_empty_slot_index(array, index);
      53      125658 : }
      54             : 
      55      238237 : Smi PrototypeUsers::empty_slot_index(WeakArrayList array) {
      56      238237 :   return array->Get(kEmptySlotIndex).ToSmi();
      57             : }
      58             : 
      59             : void PrototypeUsers::set_empty_slot_index(WeakArrayList array, int index) {
      60      342100 :   array->Set(kEmptySlotIndex, MaybeObject::FromObject(Smi::FromInt(index)));
      61             : }
      62             : 
      63             : }  // namespace internal
      64             : }  // namespace v8
      65             : 
      66             : #include "src/objects/object-macros-undef.h"
      67             : 
      68             : #endif  // V8_OBJECTS_PROTOTYPE_INFO_INL_H_