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_JSARGUMENTS_H 17 #define ECMASCRIPT_JSARGUMENTS_H 18 19 #include "ecmascript/js_object.h" 20 #include "ecmascript/tagged_array.h" 21 22 namespace panda::ecmascript { 23 class JSThread; 24 25 class JSArguments : public JSObject { 26 public: 27 static constexpr int LENGTH_OF_INLINE_PROPERTIES = 4; 28 static constexpr int LENGTH_INLINE_PROPERTY_INDEX = 0; 29 static constexpr int ITERATOR_INLINE_PROPERTY_INDEX = 1; 30 static constexpr int CALLER_INLINE_PROPERTY_INDEX = 2; 31 static constexpr int CALLEE_INLINE_PROPERTY_INDEX = 3; 32 33 CAST_NO_CHECK(JSArguments); 34 GetInlinedPropertyOffset(uint32_t index)35 static constexpr uint32_t GetInlinedPropertyOffset(uint32_t index) 36 { 37 return JSObject::SIZE + index * JSTaggedValue::TaggedTypeSize(); 38 } 39 40 // 9.4.4.1 [[GetOwnProperty]] (P) 41 static bool GetOwnProperty(JSThread *thread, const JSHandle<JSArguments> &args, const JSHandle<JSTaggedValue> &key, 42 PropertyDescriptor &desc); 43 // 9.4.4.2 [[DefineOwnProperty]] (P, Desc) 44 static bool DefineOwnProperty(JSThread *thread, const JSHandle<JSArguments> &args, 45 const JSHandle<JSTaggedValue> &key, const PropertyDescriptor &desc); 46 // 9.4.4.3 [[Get]] (P, Receiver) GetProperty(JSThread * thread,const JSHandle<JSObject> & obj,const JSHandle<JSTaggedValue> & key)47 static inline OperationResult GetProperty(JSThread *thread, const JSHandle<JSObject> &obj, 48 const JSHandle<JSTaggedValue> &key) 49 { 50 return GetProperty(thread, JSHandle<JSArguments>::Cast(obj), key, JSHandle<JSTaggedValue>::Cast(obj)); 51 } 52 static OperationResult GetProperty(JSThread *thread, const JSHandle<JSArguments> &args, 53 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &receiver); 54 // 9.4.4.4 [[Set]] ( P, V, Receiver) SetProperty(JSThread * thread,const JSHandle<JSObject> & obj,const JSHandle<JSTaggedValue> & key,const JSHandle<JSTaggedValue> & value)55 static inline bool SetProperty(JSThread *thread, const JSHandle<JSObject> &obj, const JSHandle<JSTaggedValue> &key, 56 const JSHandle<JSTaggedValue> &value) 57 { 58 return SetProperty(thread, JSHandle<JSArguments>::Cast(obj), key, value, JSHandle<JSTaggedValue>::Cast(obj)); 59 } 60 static bool SetProperty(JSThread *thread, const JSHandle<JSArguments> &args, const JSHandle<JSTaggedValue> &key, 61 const JSHandle<JSTaggedValue> &value, const JSHandle<JSTaggedValue> &receiver); 62 // 9.4.4.5 [[Delete]] (P) 63 static bool DeleteProperty(JSThread *thread, const JSHandle<JSArguments> &args, const JSHandle<JSTaggedValue> &key); 64 // 9.4.4.6 CreateUnmappedArgumentsObject(argumentsList) 65 // 9.4.4.7 CreateMappedArgumentsObject ( func, formals, argumentsList, env ) 66 }; 67 } // namespace panda::ecmascript 68 69 #endif // ECMASCRIPT_JSARGUMENTS_H 70