1 /* 2 * Copyright (c) 2022 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_COMPILER_BUILTINS_CONTAINERS_DEQUE_STUB_BUILDER_H 17 #define ECMASCRIPT_COMPILER_BUILTINS_CONTAINERS_DEQUE_STUB_BUILDER_H 18 #include "ecmascript/compiler/stub_builder-inl.h" 19 #include "ecmascript/js_api/js_api_deque.h" 20 21 namespace panda::ecmascript::kungfu { 22 class ContainersDequeStubBuilder : public StubBuilder { 23 public: ContainersDequeStubBuilder(StubBuilder * parent)24 explicit ContainersDequeStubBuilder(StubBuilder *parent) 25 : StubBuilder(parent) {} 26 ~ContainersDequeStubBuilder() override = default; 27 NO_MOVE_SEMANTIC(ContainersDequeStubBuilder); 28 NO_COPY_SEMANTIC(ContainersDequeStubBuilder); GenerateCircuit()29 void GenerateCircuit() override {} 30 GetSize(GateRef obj)31 GateRef GetSize(GateRef obj) 32 { 33 GateRef elementsOffset = IntPtr(JSObject::ELEMENTS_OFFSET); 34 GateRef elements = Load(VariableType::JS_POINTER(), obj, elementsOffset); 35 GateRef capacity = Load(VariableType::INT32(), elements, IntPtr(TaggedArray::LENGTH_OFFSET)); 36 GateRef first = GetFirst(obj); 37 GateRef last = GetLast(obj); 38 return Int32Mod(Int32Add(Int32Sub(last, first), capacity), capacity); 39 } 40 Get(GateRef obj,GateRef index)41 GateRef Get(GateRef obj, GateRef index) 42 { 43 GateRef elementsOffset = IntPtr(JSObject::ELEMENTS_OFFSET); 44 GateRef elements = Load(VariableType::JS_POINTER(), obj, elementsOffset); 45 GateRef capacity = Load(VariableType::INT32(), elements, IntPtr(TaggedArray::LENGTH_OFFSET)); 46 GateRef first = GetFirst(obj); 47 GateRef curIndex = Int32Mod(Int32Add(first, index), capacity); 48 return GetValueFromTaggedArray(elements, curIndex); 49 } 50 GetFirst(GateRef obj)51 GateRef GetFirst(GateRef obj) 52 { 53 return Load(VariableType::INT32(), obj, IntPtr(JSAPIDeque::FIRST_OFFSET)); 54 } 55 GetLast(GateRef obj)56 GateRef GetLast(GateRef obj) 57 { 58 return Load(VariableType::INT32(), obj, IntPtr(JSAPIDeque::LAST_OFFSET)); 59 } 60 GetElementsLength(GateRef obj)61 GateRef GetElementsLength(GateRef obj) 62 { 63 GateRef elementsOffset = IntPtr(JSObject::ELEMENTS_OFFSET); 64 GateRef elements = Load(VariableType::JS_POINTER(), obj, elementsOffset); 65 return Load(VariableType::INT32(), elements, IntPtr(TaggedArray::LENGTH_OFFSET)); 66 } 67 }; 68 } // namespace panda::ecmascript::kungfu 69 #endif // ECMASCRIPT_COMPILER_BUILTINS_CONTAINERS_DEQUE_STUB_BUILDER_H