1 /* 2 * Copyright (c) 2022-2023 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_API_JS_API_TREE_SET_ITERATOR_H 17 #define ECMASCRIPT_JS_API_JS_API_TREE_SET_ITERATOR_H 18 19 #include "ecmascript/js_iterator.h" 20 #include "ecmascript/js_object.h" 21 22 namespace panda::ecmascript { 23 /** 24 * It is used to provide iterators for non ECMA standard jsapi containers. 25 * JSAPITreeSetIterator provides ordered iterators. 26 * */ 27 class JSAPITreeSetIterator : public JSObject { 28 public: Cast(TaggedObject * obj)29 static JSAPITreeSetIterator *Cast(TaggedObject *obj) 30 { 31 ASSERT(JSTaggedValue(obj).IsJSAPITreeSetIterator()); 32 return static_cast<JSAPITreeSetIterator *>(obj); 33 } 34 static JSHandle<JSTaggedValue> CreateTreeSetIterator(JSThread *thread, JSHandle<JSTaggedValue> &obj, 35 IterationKind kind); 36 37 static JSTaggedValue Next(EcmaRuntimeCallInfo *argv); 38 39 static constexpr size_t ITERATED_SET_OFFSET = JSObject::SIZE; 40 ACCESSORS(IteratedSet, ITERATED_SET_OFFSET, ITERATED_ENTRIES_OFFSET); 41 ACCESSORS(Entries, ITERATED_ENTRIES_OFFSET, NEXT_INDEX_OFFSET); 42 ACCESSORS_PRIMITIVE_FIELD(NextIndex, uint32_t, NEXT_INDEX_OFFSET, BIT_FIELD_OFFSET) 43 ACCESSORS_BIT_FIELD(BitField, BIT_FIELD_OFFSET, LAST_OFFSET) 44 DEFINE_ALIGN_SIZE(LAST_OFFSET); 45 46 // define BitField 47 static constexpr size_t ITERATION_KIND_BITS = 2; 48 FIRST_BIT_FIELD(BitField, IterationKind, IterationKind, ITERATION_KIND_BITS) 49 50 DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, ITERATED_SET_OFFSET, NEXT_INDEX_OFFSET) 51 52 DECL_DUMP() 53 }; 54 } // namespace panda::ecmascript 55 56 #endif // ECMASCRIPT_JS_API_JS_API_TREE_SET_ITERATOR_H 57