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_JS_MAP_ITERATOR_H 17 #define ECMASCRIPT_JS_MAP_ITERATOR_H 18 19 #include "ecmascript/js_iterator.h" 20 #include "ecmascript/js_object.h" 21 22 namespace panda::ecmascript { 23 class JSMapIterator : public JSObject { 24 public: Cast(ObjectHeader * obj)25 static JSMapIterator *Cast(ObjectHeader *obj) 26 { 27 ASSERT(JSTaggedValue(obj).IsJSMapIterator()); 28 return static_cast<JSMapIterator *>(obj); 29 } 30 static JSHandle<JSTaggedValue> CreateMapIterator(JSThread *thread, const JSHandle<JSTaggedValue> &obj, 31 IterationKind kind); 32 33 static JSTaggedValue Next(EcmaRuntimeCallInfo *argv); 34 void Update(const JSThread *thread); 35 36 static constexpr size_t ITERATED_MAP_OFFSET = JSObject::SIZE; 37 ACCESSORS(IteratedMap, ITERATED_MAP_OFFSET, NEXT_INDEX_OFFSET); 38 ACCESSORS_PRIMITIVE_FIELD(NextIndex, uint32_t, NEXT_INDEX_OFFSET, BIT_FIELD_OFFSET) 39 ACCESSORS_BIT_FIELD(BitField, BIT_FIELD_OFFSET, LAST_OFFSET) 40 DEFINE_ALIGN_SIZE(LAST_OFFSET); 41 42 // define BitField 43 static constexpr size_t ITERATION_KIND_BITS = 2; 44 FIRST_BIT_FIELD(BitField, IterationKind, IterationKind, ITERATION_KIND_BITS) 45 46 DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, ITERATED_MAP_OFFSET, NEXT_INDEX_OFFSET) 47 DECL_DUMP() 48 }; 49 } // namespace panda::ecmascript 50 51 #endif // ECMASCRIPT_JS_MAP_ITERATOR_H 52