1 /* 2 * Copyright (c) 2021-2022 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_JS_TYPED_ARRAY_H 17 #define ECMASCRIPT_JS_TYPED_ARRAY_H 18 19 #include "ecmascript/js_dataview.h" 20 #include "ecmascript/js_object.h" 21 #include "ecmascript/tagged_array.h" 22 23 namespace panda::ecmascript { 24 enum class ContentType : uint8_t { None = 1, Number, BigInt }; 25 class JSTypedArray : public JSObject { 26 public: 27 static constexpr size_t MAX_ONHEAP_LENGTH = 64; Cast(TaggedObject * object)28 static JSTypedArray *Cast(TaggedObject *object) 29 { 30 #if ECMASCRIPT_ENABLE_CAST_CHECK 31 if (!(JSTaggedValue(object).IsTypedArray() || JSTaggedValue(object).IsJSTypedArray())) { 32 UNREACHABLE(); 33 } 34 #else 35 ASSERT(JSTaggedValue(object).IsTypedArray() || JSTaggedValue(object).IsJSTypedArray()); 36 #endif 37 return static_cast<JSTypedArray *>(object); 38 } 39 40 static JSHandle<JSTaggedValue> ToPropKey(JSThread *thread, const JSHandle<JSTaggedValue> &key); 41 42 // 9.4.5 Integer-Indexed Exotic Objects 43 // 9.4.5.1 [[GetOwnProperty]] ( P ) 44 static bool GetOwnProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 45 const JSHandle<JSTaggedValue> &key, PropertyDescriptor &desc); 46 // 9.4.5.2 [[HasProperty]] ( P ) 47 static bool HasProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 48 const JSHandle<JSTaggedValue> &key); 49 // 9.4.5.3 [[DefineOwnProperty]] ( P, Desc ) 50 static bool DefineOwnProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 51 const JSHandle<JSTaggedValue> &key, const PropertyDescriptor &desc); 52 // 9.4.5.4 [[Get]] ( P, Receiver ) GetProperty(JSThread * thread,const JSHandle<JSTaggedValue> & typedarray,const JSHandle<JSTaggedValue> & key)53 static inline OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 54 const JSHandle<JSTaggedValue> &key) 55 { 56 return GetProperty(thread, typedarray, key, typedarray); 57 } GetProperty(JSThread * thread,const JSHandle<JSTaggedValue> & typedarray,uint32_t index)58 static inline OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 59 uint32_t index) 60 { 61 return FastElementGet(thread, typedarray, index); 62 } 63 static OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 64 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &receiver); 65 // 9.4.5.5 [[Set]] ( P, V, Receiver ) 66 static inline bool SetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 67 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &value, 68 bool mayThrow = false) 69 { 70 return SetProperty(thread, typedarray, key, value, typedarray, mayThrow); 71 } 72 static bool SetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 73 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &value, 74 const JSHandle<JSTaggedValue> &receiver, bool mayThrow = false); 75 // s12 10.4.5.6 [[Delete]] ( P ) 76 static bool DeleteProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 77 const JSHandle<JSTaggedValue> &key); 78 // 9.4.5.6 [[OwnPropertyKeys]] ( ) 79 static JSHandle<TaggedArray> OwnPropertyKeys(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray); 80 // 9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList) 81 // 9.4.5.8 IntegerIndexedElementGet ( O, index ) 82 static OperationResult IntegerIndexedElementGet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 83 JSTaggedValue index); 84 static OperationResult FastElementGet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, uint32_t index); 85 static bool FastCopyElementToArray(JSThread *thread, const JSHandle<JSTaggedValue> &typedArray, 86 JSHandle<TaggedArray> &array); 87 // 9.4.5.9 IntegerIndexedElementSet ( O, index, value ) 88 static bool IntegerIndexedElementSet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 89 JSTaggedValue index, const JSHandle<JSTaggedValue> &value); 90 // s12 10.4.5.9 IsValidIntegerIndex ( O, index ) 91 static bool IsValidIntegerIndex(const JSHandle<JSTaggedValue> &typedArray, JSTaggedValue index); 92 static JSTaggedValue FastGetPropertyByIndex(JSThread *thread, const JSTaggedValue typedarray, uint32_t index, 93 JSType jsType); 94 static JSTaggedValue FastSetPropertyByIndex(JSThread *thread, const JSTaggedValue typedarray, uint32_t index, 95 JSTaggedValue value, JSType jsType); 96 // only use in TypeArray fast set property 97 static JSTaggedNumber NonEcmaObjectToNumber(JSThread *thread, const JSTaggedValue tagged); 98 static JSTaggedValue GetOffHeapBuffer(JSThread *thread, JSHandle<JSTypedArray> &typedArray); 99 static constexpr size_t VIEWED_ARRAY_BUFFER_OFFSET = JSObject::SIZE; 100 static DataViewType GetTypeFromName(JSThread *thread, const JSHandle<JSTaggedValue> &typeName); 101 ACCESSORS(ViewedArrayBuffer, VIEWED_ARRAY_BUFFER_OFFSET, TYPED_ARRAY_NAME_OFFSET) 102 ACCESSORS(TypedArrayName, TYPED_ARRAY_NAME_OFFSET, BYTE_LENGTH_OFFSET) 103 ACCESSORS_PRIMITIVE_FIELD(ByteLength, uint32_t, BYTE_LENGTH_OFFSET, BYTE_OFFSET_OFFSET) 104 ACCESSORS_PRIMITIVE_FIELD(ByteOffset, uint32_t, BYTE_OFFSET_OFFSET, ARRAY_LENGTH_OFFSET) 105 ACCESSORS_PRIMITIVE_FIELD(ArrayLength, uint32_t, ARRAY_LENGTH_OFFSET, CONTENT_TYPE_OFFSET) 106 ACCESSORS_PRIMITIVE_FIELD(ContentType, ContentType, CONTENT_TYPE_OFFSET, ON_HEAP_OFFSET) 107 ACCESSORS_PRIMITIVE_FIELD(IsOnHeap, bool, ON_HEAP_OFFSET, LAST_OFFSET) 108 109 DEFINE_ALIGN_SIZE(LAST_OFFSET); 110 static const uint32_t MAX_TYPED_ARRAY_INDEX = MAX_ELEMENT_INDEX; 111 DECL_DUMP() 112 DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, VIEWED_ARRAY_BUFFER_OFFSET, BYTE_LENGTH_OFFSET) 113 }; 114 } // namespace panda::ecmascript 115 #endif // ECMASCRIPT_JS_TYPED_ARRAY_H 116