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 38 // define BitField 39 static constexpr size_t HAS_CHANGED_BITS = 1; 40 FIRST_BIT_FIELD(BitField, HasChanged, bool, HAS_CHANGED_BITS); 41 42 DECL_DUMP() 43 }; 44 45 class ProtoChangeDetails : public TaggedObject { 46 public: 47 static constexpr int UNREGISTERED = -1; Cast(TaggedObject * object)48 static ProtoChangeDetails *Cast(TaggedObject *object) 49 { 50 ASSERT(JSTaggedValue(object).IsProtoChangeDetails()); 51 return static_cast<ProtoChangeDetails *>(object); 52 } 53 54 static constexpr size_t CHANGE_LISTENER_OFFSET = TaggedObjectSize(); 55 ACCESSORS(ChangeListener, CHANGE_LISTENER_OFFSET, REGISTER_INDEX_OFFSET); 56 ACCESSORS_PRIMITIVE_FIELD(RegisterIndex, uint32_t, REGISTER_INDEX_OFFSET, LAST_OFFSET); 57 DEFINE_ALIGN_SIZE(LAST_OFFSET); 58 59 DECL_VISIT_OBJECT(CHANGE_LISTENER_OFFSET, REGISTER_INDEX_OFFSET) 60 DECL_DUMP() 61 }; 62 63 class ChangeListener : public WeakVector { 64 public: Cast(TaggedObject * object)65 static ChangeListener *Cast(TaggedObject *object) 66 { 67 return static_cast<ChangeListener *>(object); 68 } 69 70 static JSHandle<ChangeListener> Add(const JSThread *thread, const JSHandle<ChangeListener> &array, 71 const JSHandle<JSHClass> &value, uint32_t *index); 72 73 static uint32_t CheckHole(const JSHandle<ChangeListener> &array); 74 75 JSTaggedValue Get(uint32_t index); 76 }; 77 } // namespace ecmascript 78 } // namespace panda 79 80 #endif // ECMASCRIPT_IC_PROTOTYPE_CHANGE_DETAILS_H 81