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// Copyright 2020 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_CPPGC_JS_CPP_HEAP_H_
#define V8_HEAP_CPPGC_JS_CPP_HEAP_H_
#include "include/v8.h"
#include "src/base/macros.h"
#include "src/heap/cppgc/heap-base.h"
namespace v8 {
class Isolate;
namespace internal {
// A C++ heap implementation used with V8 to implement unified heap.
class V8_EXPORT_PRIVATE CppHeap final : public cppgc::internal::HeapBase,
public v8::EmbedderHeapTracer {
public:
CppHeap(v8::Isolate* isolate, size_t custom_spaces);
HeapBase& AsBase() { return *this; }
const HeapBase& AsBase() const { return *this; }
void RegisterV8References(
const std::vector<std::pair<void*, void*> >& embedder_fields) final;
void TracePrologue(TraceFlags flags) final;
bool AdvanceTracing(double deadline_in_ms) final;
bool IsTracingDone() final;
void TraceEpilogue(TraceSummary* trace_summary) final;
void EnterFinalPause(EmbedderStackState stack_state) final;
private:
Isolate& isolate_;
bool marking_done_ = false;
};
} // namespace internal
} // namespace v8
#endif // V8_HEAP_CPPGC_JS_CPP_HEAP_H_