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// Copyright 2019 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_COMBINED_HEAP_H_
#define V8_HEAP_COMBINED_HEAP_H_
#include "src/heap/heap.h"
#include "src/heap/read-only-heap.h"
#include "src/objects/objects.h"
namespace v8 {
namespace internal {
// This class allows iteration over the entire heap (Heap and ReadOnlyHeap). It
// uses the HeapObjectIterator to iterate over non-read-only objects and accepts
// the same filtering option. (Interrupting iteration while filtering
// unreachable objects is still forbidden)
class V8_EXPORT_PRIVATE CombinedHeapObjectIterator final {
public:
CombinedHeapObjectIterator(
Heap* heap, HeapObjectIterator::HeapObjectsFiltering filtering =
HeapObjectIterator::HeapObjectsFiltering::kNoFiltering);
HeapObject Next();
private:
HeapObjectIterator heap_iterator_;
ReadOnlyHeapObjectIterator ro_heap_iterator_;
};
V8_WARN_UNUSED_RESULT inline bool IsValidHeapObject(Heap* heap,
HeapObject object) {
return ReadOnlyHeap::Contains(object) || heap->Contains(object);
}
} // namespace internal
} // namespace v8
#endif // V8_HEAP_COMBINED_HEAP_H_