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 24 namespace panda { 25 namespace ecmascript { 26 class ProtoChangeMarker : public TaggedObject { 27 public: Cast(TaggedObject *object)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 48 class ProtoChangeDetails : public TaggedObject { 49 public: 50 static constexpr int UNREGISTERED = -1; Cast(TaggedObject *object)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 66 class ChangeListener : public WeakVector { 67 public: Cast(TaggedObject *object)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