mirror of
https://github.com/nodejs/node.git
synced 2025-05-22 22:11:41 +00:00
1d6adf7432
PR-URL: https://github.com/nodejs/node/pull/32831 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Michaël Zasso <targos@protonmail.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
54 lines
1.4 KiB
C++
54 lines
1.4 KiB
C++
// 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 INCLUDE_CPPGC_GARBAGE_COLLECTED_H_
|
|
#define INCLUDE_CPPGC_GARBAGE_COLLECTED_H_
|
|
|
|
#include <type_traits>
|
|
|
|
#include "include/cppgc/internals.h"
|
|
#include "include/cppgc/platform.h"
|
|
|
|
namespace cppgc {
|
|
namespace internal {
|
|
|
|
template <typename T, typename = void>
|
|
struct IsGarbageCollectedType : std::false_type {
|
|
static_assert(sizeof(T), "T must be fully defined");
|
|
};
|
|
|
|
template <typename T>
|
|
struct IsGarbageCollectedType<
|
|
T, void_t<typename std::remove_const_t<T>::IsGarbageCollectedTypeMarker>>
|
|
: std::true_type {
|
|
static_assert(sizeof(T), "T must be fully defined");
|
|
};
|
|
|
|
} // namespace internal
|
|
|
|
template <typename>
|
|
class GarbageCollected {
|
|
public:
|
|
using IsGarbageCollectedTypeMarker = void;
|
|
|
|
// Must use MakeGarbageCollected.
|
|
void* operator new(size_t) = delete;
|
|
void* operator new[](size_t) = delete;
|
|
// The garbage collector is taking care of reclaiming the object. Also,
|
|
// virtual destructor requires an unambiguous, accessible 'operator delete'.
|
|
void operator delete(void*) {
|
|
#ifdef V8_ENABLE_CHECKS
|
|
internal::Abort();
|
|
#endif // V8_ENABLE_CHECKS
|
|
}
|
|
void operator delete[](void*) = delete;
|
|
|
|
protected:
|
|
GarbageCollected() = default;
|
|
};
|
|
|
|
} // namespace cppgc
|
|
|
|
#endif // INCLUDE_CPPGC_GARBAGE_COLLECTED_H_
|