1 /*
2 * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #ifndef ECMASCRIPT_TAGGED_OBJECT_HEADER_INL_H
17 #define ECMASCRIPT_TAGGED_OBJECT_HEADER_INL_H
18
19 #include "ecmascript/mem/barriers-inl.h"
20 #include "ecmascript/mem/tagged_object.h"
21
22 #include <atomic>
23
24 #include "ecmascript/ecma_vm.h"
25 #include "ecmascript/js_handle.h"
26 #include "ecmascript/js_hclass.h"
27
28 namespace panda::ecmascript {
SetClassWithoutBarrier(JSHClass * hclass)29 inline void TaggedObject::SetClassWithoutBarrier(JSHClass *hclass)
30 {
31 state_ = 0;
32 TransitionClassWithoutBarrier(hclass);
33 }
34
TransitionClassWithoutBarrier(JSHClass * hclass)35 inline void TaggedObject::TransitionClassWithoutBarrier(JSHClass *hclass)
36 {
37 reinterpret_cast<TaggedStateWord *>(this)->SetClass(reinterpret_cast<uintptr_t>(hclass));
38 }
39
SetFreeObjectClass(JSHClass * hclass)40 inline void TaggedObject::SetFreeObjectClass(JSHClass *hclass)
41 {
42 ASSERT(hclass->IsFreeObject());
43 common::StateWordType state = static_cast<common::StateWordType>(ToUintPtr(hclass));
44 reinterpret_cast<TaggedStateWord *>(this)->SynchronizedSetGCStateWord(state);
45 }
46
SetClass(const JSThread * thread,JSHClass * hclass)47 inline void TaggedObject::SetClass(const JSThread *thread, JSHClass *hclass)
48 {
49 #ifndef ARK_USE_SATB_BARRIER
50 SetClassWithoutBarrier(hclass);
51 WriteBarrier(thread, this, HCLASS_OFFSET, JSTaggedValue(hclass).GetRawData());
52 #else
53 WriteBarrier(thread, this, HCLASS_OFFSET, JSTaggedValue(hclass).GetRawData());
54 SetClassWithoutBarrier(hclass);
55 #endif
56 }
57
SynchronizedTransitionClass(const JSThread * thread,JSHClass * hclass)58 inline void TaggedObject::SynchronizedTransitionClass(const JSThread *thread, JSHClass *hclass)
59 {
60 #ifndef ARK_USE_SATB_BARRIER
61 reinterpret_cast<TaggedStateWord *>(this)->SynchronizedSetClass(reinterpret_cast<uintptr_t>(hclass));
62 WriteBarrier(thread, this, HCLASS_OFFSET, JSTaggedValue(hclass).GetRawData());
63 #else
64 WriteBarrier(thread, this, HCLASS_OFFSET, JSTaggedValue(hclass).GetRawData());
65 reinterpret_cast<TaggedStateWord *>(this)->SynchronizedSetClass(reinterpret_cast<uintptr_t>(hclass));
66 #endif
67 }
68
SynchronizedGetClass()69 inline JSHClass *TaggedObject::SynchronizedGetClass() const
70 {
71 return reinterpret_cast<JSHClass *>(reinterpret_cast<const TaggedStateWord *>(this)->SynchronizedGetClass());
72 }
73
IsInSharedHeap()74 inline bool TaggedObject::IsInSharedHeap() const
75 {
76 return GetClass()->IsJSShared();
77 }
78 } // namespace panda::ecmascript
79
80 #endif // ECMASCRIPT_TAGGED_OBJECT_HEADER_INL_H
81