// Copyright 2017 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. #include "src/heap/invalidated-slots.h" #include "src/heap/invalidated-slots-inl.h" #include "src/heap/memory-chunk.h" #include "src/heap/spaces.h" #include "src/objects/objects-inl.h" namespace v8 { namespace internal { InvalidatedSlotsFilter InvalidatedSlotsFilter::OldToOld(MemoryChunk* chunk) { return InvalidatedSlotsFilter(chunk, chunk->invalidated_slots<OLD_TO_OLD>()); } InvalidatedSlotsFilter InvalidatedSlotsFilter::OldToNew(MemoryChunk* chunk) { return InvalidatedSlotsFilter(chunk, chunk->invalidated_slots<OLD_TO_NEW>()); } InvalidatedSlotsFilter::InvalidatedSlotsFilter( MemoryChunk* chunk, InvalidatedSlots* invalidated_slots) { invalidated_slots = invalidated_slots ? invalidated_slots : &empty_; iterator_ = invalidated_slots->begin(); iterator_end_ = invalidated_slots->end(); sentinel_ = chunk->area_end(); // Invoke NextInvalidatedObject twice, to initialize // invalidated_start_ to the first invalidated object and // next_invalidated_object_ to the second one. NextInvalidatedObject(); NextInvalidatedObject(); #ifdef DEBUG last_slot_ = chunk->area_start(); #endif } InvalidatedSlotsCleanup InvalidatedSlotsCleanup::OldToNew(MemoryChunk* chunk) { return InvalidatedSlotsCleanup(chunk, chunk->invalidated_slots<OLD_TO_NEW>()); } InvalidatedSlotsCleanup InvalidatedSlotsCleanup::NoCleanup(MemoryChunk* chunk) { return InvalidatedSlotsCleanup(chunk, nullptr); } InvalidatedSlotsCleanup::InvalidatedSlotsCleanup( MemoryChunk* chunk, InvalidatedSlots* invalidated_slots) { invalidated_slots_ = invalidated_slots ? invalidated_slots : &empty_; iterator_ = invalidated_slots_->begin(); iterator_end_ = invalidated_slots_->end(); sentinel_ = chunk->area_end(); NextInvalidatedObject(); #ifdef DEBUG last_free_ = chunk->area_start(); #endif } } // namespace internal } // namespace v8