forked from v8/v8
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathprefinalizer.h
More file actions
52 lines (41 loc) · 2.17 KB
/
prefinalizer.h
File metadata and controls
52 lines (41 loc) · 2.17 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
// 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_PREFINALIZER_H_
#define INCLUDE_CPPGC_PREFINALIZER_H_
#include "cppgc/internal/compiler-specific.h"
#include "cppgc/internal/prefinalizer-handler.h"
#include "cppgc/liveness-broker.h"
namespace cppgc {
namespace internal {
template <typename T>
class PrefinalizerRegistration final {
public:
explicit PrefinalizerRegistration(T* self) {
static_assert(sizeof(&T::InvokePreFinalizer) > 0,
"USING_PRE_FINALIZER(T) must be defined.");
cppgc::internal::PreFinalizerRegistrationDispatcher::RegisterPrefinalizer(
{self, T::InvokePreFinalizer});
}
void* operator new(size_t, void* location) = delete;
void* operator new(size_t) = delete;
};
} // namespace internal
#define CPPGC_USING_PRE_FINALIZER(Class, PreFinalizer) \
public: \
static bool InvokePreFinalizer(const cppgc::LivenessBroker& liveness_broker, \
void* object) { \
static_assert(cppgc::IsGarbageCollectedOrMixinTypeV<Class>, \
"Only garbage collected objects can have prefinalizers"); \
Class* self = static_cast<Class*>(object); \
if (liveness_broker.IsHeapObjectAlive(self)) return false; \
self->PreFinalizer(); \
return true; \
} \
\
private: \
CPPGC_NO_UNIQUE_ADDRESS cppgc::internal::PrefinalizerRegistration<Class> \
prefinalizer_dummy_{this}; \
static_assert(true, "Force semicolon.")
} // namespace cppgc
#endif // INCLUDE_CPPGC_PREFINALIZER_H_