// Copyright 2016 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_HEAP_REMEMBERED_SET_INL_H_ #define V8_HEAP_REMEMBERED_SET_INL_H_ #include "src/common/ptr-compr-inl.h" #include "src/heap/remembered-set.h" namespace v8 { namespace internal { template <typename Callback> SlotCallbackResult UpdateTypedSlotHelper::UpdateTypedSlot(Heap* heap, SlotType slot_type, Address addr, Callback callback) { switch (slot_type) { case CODE_TARGET_SLOT: { RelocInfo rinfo(addr, RelocInfo::CODE_TARGET, 0, Code()); return UpdateCodeTarget(&rinfo, callback); } case CODE_ENTRY_SLOT: { return UpdateCodeEntry(addr, callback); } case COMPRESSED_EMBEDDED_OBJECT_SLOT: { RelocInfo rinfo(addr, RelocInfo::COMPRESSED_EMBEDDED_OBJECT, 0, Code()); return UpdateEmbeddedPointer(heap, &rinfo, callback); } case FULL_EMBEDDED_OBJECT_SLOT: { RelocInfo rinfo(addr, RelocInfo::FULL_EMBEDDED_OBJECT, 0, Code()); return UpdateEmbeddedPointer(heap, &rinfo, callback); } case COMPRESSED_OBJECT_SLOT: { HeapObject old_target = HeapObject::cast(Object( DecompressTaggedAny(heap->isolate(), base::Memory<Tagged_t>(addr)))); HeapObject new_target = old_target; SlotCallbackResult result = callback(FullMaybeObjectSlot(&new_target)); DCHECK(!HasWeakHeapObjectTag(new_target)); if (new_target != old_target) { base::Memory<Tagged_t>(addr) = CompressTagged(new_target.ptr()); } return result; } case FULL_OBJECT_SLOT: { return callback(FullMaybeObjectSlot(addr)); } case CLEARED_SLOT: break; } UNREACHABLE(); } } // namespace internal } // namespace v8 #endif // V8_HEAP_REMEMBERED_SET_INL_H_