// Copyright 2012 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_HEAP_INCREMENTAL_MARKING_INL_H_
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#define V8_HEAP_INCREMENTAL_MARKING_INL_H_
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#include "src/heap/incremental-marking.h"
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#include "src/isolate.h"
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#include "src/objects-inl.h"
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#include "src/objects/maybe-object.h"
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namespace v8 {
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namespace internal {
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void IncrementalMarking::RecordWrite(HeapObject* obj, Object** slot,
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Object* value) {
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DCHECK_IMPLIES(slot != nullptr, !HasWeakHeapObjectTag(*slot));
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DCHECK(!HasWeakHeapObjectTag(value));
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if (IsMarking() && value->IsHeapObject()) {
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RecordWriteSlow(obj, reinterpret_cast<HeapObjectReference**>(slot),
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HeapObject::cast(value));
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}
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}
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void IncrementalMarking::RecordMaybeWeakWrite(HeapObject* obj,
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MaybeObject** slot,
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MaybeObject* value) {
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// When writing a weak reference, treat it as strong for the purposes of the
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// marking barrier.
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HeapObject* heap_object;
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if (IsMarking() && value->ToStrongOrWeakHeapObject(&heap_object)) {
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RecordWriteSlow(obj, reinterpret_cast<HeapObjectReference**>(slot),
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heap_object);
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}
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}
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void IncrementalMarking::RestartIfNotMarking() {
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if (state_ == COMPLETE) {
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state_ = MARKING;
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if (FLAG_trace_incremental_marking) {
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heap()->isolate()->PrintWithTimestamp(
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"[IncrementalMarking] Restarting (new grey objects)\n");
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}
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}
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_HEAP_INCREMENTAL_MARKING_INL_H_
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