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 = 512 * 8; 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 JSTaggedValue(object).IsSharedTypedArray() || JSTaggedValue(object).IsJSSharedTypedArray())) { 33 LOG_ECMA(FATAL) << "this branch is unreachable"; 34 UNREACHABLE(); 35 } 36 #else 37 ASSERT(JSTaggedValue(object).IsTypedArray() || JSTaggedValue(object).IsJSTypedArray() || 38 JSTaggedValue(object).IsSharedTypedArray() || JSTaggedValue(object).IsJSSharedTypedArray()); 39 #endif 40 return static_cast<JSTypedArray *>(object); 41 } 42 43 static JSHandle<JSTaggedValue> ToPropKey(JSThread *thread, const JSHandle<JSTaggedValue> &key); 44 45 // 9.4.5 Integer-Indexed Exotic Objects 46 // 9.4.5.1 [[GetOwnProperty]] ( P ) 47 static bool GetOwnProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 48 const JSHandle<JSTaggedValue> &key, PropertyDescriptor &desc); 49 // 9.4.5.2 [[HasProperty]] ( P ) 50 static bool HasProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 51 const JSHandle<JSTaggedValue> &key); 52 // 9.4.5.3 [[DefineOwnProperty]] ( P, Desc ) 53 static bool DefineOwnProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 54 const JSHandle<JSTaggedValue> &key, const PropertyDescriptor &desc); 55 // 9.4.5.4 [[Get]] ( P, Receiver ) GetProperty(JSThread * thread,const JSHandle<JSTaggedValue> & typedarray,const JSHandle<JSTaggedValue> & key)56 static inline OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 57 const JSHandle<JSTaggedValue> &key) 58 { 59 return GetProperty(thread, typedarray, key, typedarray); 60 } GetProperty(JSThread * thread,const JSHandle<JSTaggedValue> & typedarray,uint32_t index)61 static inline OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 62 uint32_t index) 63 { 64 return FastElementGet(thread, typedarray, index); 65 } 66 static OperationResult GetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 67 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &receiver); 68 // 9.4.5.5 [[Set]] ( P, V, Receiver ) 69 static inline bool SetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 70 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &value, 71 bool mayThrow = false) 72 { 73 return SetProperty(thread, typedarray, key, value, typedarray, mayThrow); 74 } 75 static bool SetProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 76 const JSHandle<JSTaggedValue> &key, const JSHandle<JSTaggedValue> &value, 77 const JSHandle<JSTaggedValue> &receiver, bool mayThrow = false); 78 // s12 10.4.5.6 [[Delete]] ( P ) 79 static bool DeleteProperty(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 80 const JSHandle<JSTaggedValue> &key); 81 // 9.4.5.6 [[OwnPropertyKeys]] ( ) 82 static JSHandle<TaggedArray> OwnPropertyKeys(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray); 83 static JSHandle<TaggedArray> OwnEnumPropertyKeys(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray); 84 // 9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList) 85 // 9.4.5.8 IntegerIndexedElementGet ( O, index ) 86 static OperationResult IntegerIndexedElementGet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 87 JSTaggedValue index); 88 static OperationResult FastElementGet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, uint32_t index); 89 static bool FastCopyElementToArray(JSThread *thread, const JSHandle<JSTaggedValue> &typedArray, 90 JSHandle<TaggedArray> &array); 91 // 9.4.5.9 IntegerIndexedElementSet ( O, index, value ) 92 static bool IntegerIndexedElementSet(JSThread *thread, const JSHandle<JSTaggedValue> &typedarray, 93 JSTaggedValue index, const JSHandle<JSTaggedValue> &value); 94 // s12 10.4.5.9 IsValidIntegerIndex ( O, index ) 95 static bool IsValidIntegerIndex(JSThread *thread, const JSHandle<JSTaggedValue> &typedArray, JSTaggedValue index); 96 static JSTaggedValue FastGetPropertyByIndex(JSThread *thread, const JSTaggedValue typedarray, uint32_t index, 97 JSType jsType); 98 static JSTaggedValue PUBLIC_API FastSetPropertyByIndex(JSThread *thread, const JSTaggedValue typedarray, 99 uint32_t index, JSTaggedValue value, JSType jsType); 100 // only use in TypeArray fast set property 101 static JSTaggedNumber NonEcmaObjectToNumber(JSThread *thread, const JSTaggedValue tagged); 102 static JSTaggedValue GetOffHeapBuffer(JSThread *thread, JSHandle<JSTypedArray> &typedArray); 103 static bool FastTypedArrayFill(JSThread *thread, const JSHandle<JSTaggedValue> &typedArray, 104 const JSHandle<JSTaggedValue> &value, uint32_t start, uint32_t end); 105 static constexpr size_t VIEWED_ARRAY_BUFFER_OFFSET = JSObject::SIZE; 106 static DataViewType GetTypeFromName(JSThread *thread, const JSHandle<JSTaggedValue> &typeName); 107 ACCESSORS(ViewedArrayBufferOrByteArray, VIEWED_ARRAY_BUFFER_OFFSET, TYPED_ARRAY_NAME_OFFSET) 108 ACCESSORS(TypedArrayName, TYPED_ARRAY_NAME_OFFSET, BYTE_LENGTH_OFFSET) 109 ACCESSORS_PRIMITIVE_FIELD(ByteLength, uint32_t, BYTE_LENGTH_OFFSET, BYTE_OFFSET_OFFSET) 110 ACCESSORS_PRIMITIVE_FIELD(ByteOffset, uint32_t, BYTE_OFFSET_OFFSET, ARRAY_LENGTH_OFFSET) 111 ACCESSORS_PRIMITIVE_FIELD(ArrayLength, uint32_t, ARRAY_LENGTH_OFFSET, CONTENT_TYPE_OFFSET) 112 ACCESSORS_PRIMITIVE_FIELD(ContentType, ContentType, CONTENT_TYPE_OFFSET, LAST_OFFSET) 113 114 DEFINE_ALIGN_SIZE(LAST_OFFSET); 115 static const uint32_t MAX_TYPED_ARRAY_INDEX = MAX_ELEMENT_INDEX; 116 DECL_DUMP() 117 DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, VIEWED_ARRAY_BUFFER_OFFSET, BYTE_LENGTH_OFFSET) 118 119 private: 120 static inline bool IsArrayBufferDetached(JSThread *thread, JSTaggedValue buffer); 121 }; 122 } // namespace panda::ecmascript 123 #endif // ECMASCRIPT_JS_TYPED_ARRAY_H 124