chromium/v8/src/heap/read-only-promotion.cc

// Copyright 2023 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/read-only-promotion.h"

#include <unordered_set>

#include "src/common/assert-scope.h"
#include "src/execution/isolate.h"
#include "src/heap/heap.h"
#include "src/objects/heap-object-inl.h"
#include "src/sandbox/external-pointer-table.h"

namespace v8 {
namespace internal {
namespace {

// Convenience aliases:
using HeapObjectSet = std::unordered_set<Tagged<HeapObject>, Object::Hasher,
                                         Object::KeyEqualSafe>;
using HeapObjectMap = std::unordered_map<Tagged<HeapObject>, Tagged<HeapObject>,
                                         Object::Hasher, Object::KeyEqualSafe>;
using HeapObjectList = std::vector<Tagged<HeapObject>>;

bool Contains(const HeapObjectSet& s, Tagged<HeapObject> o) { … }
bool Contains(const HeapObjectMap& s, Tagged<HeapObject> o) { … }

class Committee final { … } … };

class ReadOnlyPromotionImpl final : public AllStatic { … };

}  // namespace

// static
void ReadOnlyPromotion::Promote(Isolate* isolate,
                                const SafepointScope& safepoint_scope,
                                const DisallowGarbageCollection& no_gc) { … }

}  // namespace internal
}  // namespace v8