1/*
2 * Copyright (c) 2021 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_IC_PROTOTYPE_CHANGE_DETAILS_H
17#define ECMASCRIPT_IC_PROTOTYPE_CHANGE_DETAILS_H
18
19#include "ecmascript/ecma_macros.h"
20#include "ecmascript/js_handle.h"
21#include "ecmascript/js_tagged_value.h"
22#include "ecmascript/weak_vector.h"
23
24namespace panda {
25namespace ecmascript {
26class ProtoChangeMarker : public TaggedObject {
27public:
28    static ProtoChangeMarker *Cast(TaggedObject *object)
29    {
30        ASSERT(JSTaggedValue(object).IsProtoChangeMarker());
31        return static_cast<ProtoChangeMarker *>(object);
32    }
33
34    static constexpr size_t BIT_FIELD_OFFSET = TaggedObjectSize();
35    ACCESSORS_BIT_FIELD(BitField, BIT_FIELD_OFFSET, LAST_OFFSET)
36    DEFINE_ALIGN_SIZE(LAST_OFFSET);
37    DECL_VISIT_PRIMITIVE_OBJECT()
38
39    // define BitField
40    static constexpr size_t HAS_CHANGED_BITS = 1;
41    static constexpr size_t ACCESSOR_HAS_CHANGED_BITS = 1;
42    FIRST_BIT_FIELD(BitField, HasChanged, bool, HAS_CHANGED_BITS);
43    NEXT_BIT_FIELD(BitField, AccessorHasChanged, bool, ACCESSOR_HAS_CHANGED_BITS, HasChanged);
44
45    DECL_DUMP()
46};
47
48class ProtoChangeDetails : public TaggedObject {
49public:
50    static constexpr int UNREGISTERED = -1;
51    static ProtoChangeDetails *Cast(TaggedObject *object)
52    {
53        ASSERT(JSTaggedValue(object).IsProtoChangeDetails());
54        return static_cast<ProtoChangeDetails *>(object);
55    }
56
57    static constexpr size_t CHANGE_LISTENER_OFFSET = TaggedObjectSize();
58    ACCESSORS(ChangeListener, CHANGE_LISTENER_OFFSET, REGISTER_INDEX_OFFSET);
59    ACCESSORS_PRIMITIVE_FIELD(RegisterIndex, uint32_t, REGISTER_INDEX_OFFSET, LAST_OFFSET);
60    DEFINE_ALIGN_SIZE(LAST_OFFSET);
61
62    DECL_VISIT_OBJECT(CHANGE_LISTENER_OFFSET, REGISTER_INDEX_OFFSET)
63    DECL_DUMP()
64};
65
66class ChangeListener : public WeakVector {
67public:
68    static ChangeListener *Cast(TaggedObject *object)
69    {
70        return static_cast<ChangeListener *>(object);
71    }
72
73    static JSHandle<ChangeListener> Add(const JSThread *thread, const JSHandle<ChangeListener> &array,
74                                        const JSHandle<JSHClass> &value, uint32_t *index);
75
76    static uint32_t CheckHole(const JSHandle<ChangeListener> &array);
77
78    JSTaggedValue Get(uint32_t index);
79};
80}  // namespace ecmascript
81}  // namespace panda
82
83#endif  // ECMASCRIPT_IC_PROTOTYPE_CHANGE_DETAILS_H
84