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39 | #ifndef QV4TYPEDARRAY_H |
40 | #define QV4TYPEDARRAY_H |
41 | |
42 | // |
43 | // W A R N I N G |
44 | // ------------- |
45 | // |
46 | // This file is not part of the Qt API. It exists purely as an |
47 | // implementation detail. This header file may change from version to |
48 | // version without notice, or even be removed. |
49 | // |
50 | // We mean it. |
51 | // |
52 | |
53 | #include "qv4object_p.h" |
54 | #include "qv4functionobject_p.h" |
55 | #include "qv4arraybuffer_p.h" |
56 | |
57 | QT_BEGIN_NAMESPACE |
58 | |
59 | namespace QV4 { |
60 | |
61 | struct ArrayBuffer; |
62 | |
63 | enum TypedArrayType { |
64 | Int8Array, |
65 | UInt8Array, |
66 | Int16Array, |
67 | UInt16Array, |
68 | Int32Array, |
69 | UInt32Array, |
70 | UInt8ClampedArray, |
71 | Float32Array, |
72 | Float64Array, |
73 | NTypedArrayTypes |
74 | }; |
75 | |
76 | enum AtomicModifyOps { |
77 | AtomicAdd, |
78 | AtomicAnd, |
79 | AtomicExchange, |
80 | AtomicOr, |
81 | AtomicSub, |
82 | AtomicXor, |
83 | NAtomicModifyOps |
84 | }; |
85 | |
86 | struct TypedArrayOperations { |
87 | typedef ReturnedValue (*Read)(const char *data); |
88 | typedef void (*Write)(char *data, Value value); |
89 | typedef ReturnedValue (*AtomicModify)(char *data, Value value); |
90 | typedef ReturnedValue (*AtomicCompareExchange)(char *data, Value expected, Value v); |
91 | typedef ReturnedValue (*AtomicLoad)(char *data); |
92 | typedef ReturnedValue (*AtomicStore)(char *data, Value value); |
93 | |
94 | template<typename T> |
95 | static constexpr TypedArrayOperations create(const char *name); |
96 | template<typename T> |
97 | static constexpr TypedArrayOperations createWithAtomics(const char *name); |
98 | |
99 | int bytesPerElement; |
100 | const char *name; |
101 | Read read; |
102 | Write write; |
103 | AtomicModify atomicModifyOps[AtomicModifyOps::NAtomicModifyOps]; |
104 | AtomicCompareExchange atomicCompareExchange; |
105 | AtomicLoad atomicLoad; |
106 | AtomicStore atomicStore; |
107 | }; |
108 | |
109 | namespace Heap { |
110 | |
111 | #define TypedArrayMembers(class, Member) \ |
112 | Member(class, Pointer, ArrayBuffer *, buffer) \ |
113 | Member(class, NoMark, const TypedArrayOperations *, type) \ |
114 | Member(class, NoMark, uint, byteLength) \ |
115 | Member(class, NoMark, uint, byteOffset) \ |
116 | Member(class, NoMark, uint, arrayType) |
117 | |
118 | DECLARE_HEAP_OBJECT(TypedArray, Object) { |
119 | DECLARE_MARKOBJECTS(TypedArray); |
120 | using Type = TypedArrayType; |
121 | |
122 | void init(Type t); |
123 | }; |
124 | |
125 | struct IntrinsicTypedArrayCtor : FunctionObject { |
126 | }; |
127 | |
128 | struct TypedArrayCtor : FunctionObject { |
129 | void init(QV4::ExecutionContext *scope, TypedArray::Type t); |
130 | |
131 | TypedArray::Type type; |
132 | }; |
133 | |
134 | struct IntrinsicTypedArrayPrototype : Object { |
135 | }; |
136 | |
137 | struct TypedArrayPrototype : Object { |
138 | inline void init(TypedArray::Type t); |
139 | TypedArray::Type type; |
140 | }; |
141 | |
142 | |
143 | } |
144 | |
145 | struct Q_QML_PRIVATE_EXPORT TypedArray : Object |
146 | { |
147 | V4_OBJECT2(TypedArray, Object) |
148 | |
149 | static Heap::TypedArray *create(QV4::ExecutionEngine *e, Heap::TypedArray::Type t); |
150 | |
151 | uint byteLength() const { |
152 | return d()->byteLength; |
153 | } |
154 | |
155 | uint length() const { |
156 | return d()->byteLength/d()->type->bytesPerElement; |
157 | } |
158 | |
159 | QTypedArrayData<char> *arrayData() { |
160 | return d()->buffer->data; |
161 | } |
162 | |
163 | Heap::TypedArray::Type arrayType() const { |
164 | return static_cast<Heap::TypedArray::Type>(d()->arrayType); |
165 | } |
166 | using Object::get; |
167 | |
168 | static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty); |
169 | static bool virtualHasProperty(const Managed *m, PropertyKey id); |
170 | static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p); |
171 | static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver); |
172 | static bool virtualDefineOwnProperty(Managed *m, PropertyKey id, const Property *p, PropertyAttributes attrs); |
173 | static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target); |
174 | |
175 | }; |
176 | |
177 | struct IntrinsicTypedArrayCtor: FunctionObject |
178 | { |
179 | V4_OBJECT2(IntrinsicTypedArrayCtor, FunctionObject) |
180 | |
181 | static constexpr VTable::Call virtualCall = nullptr; |
182 | |
183 | static ReturnedValue method_of(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
184 | static ReturnedValue method_from(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
185 | }; |
186 | |
187 | struct TypedArrayCtor: FunctionObject |
188 | { |
189 | V4_OBJECT2(TypedArrayCtor, FunctionObject) |
190 | |
191 | static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *); |
192 | static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc); |
193 | }; |
194 | |
195 | struct IntrinsicTypedArrayPrototype : Object |
196 | { |
197 | V4_OBJECT2(IntrinsicTypedArrayPrototype, Object) |
198 | V4_PROTOTYPE(objectPrototype) |
199 | |
200 | void init(ExecutionEngine *engine, IntrinsicTypedArrayCtor *ctor); |
201 | |
202 | static ReturnedValue method_get_buffer(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
203 | static ReturnedValue method_get_byteLength(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
204 | static ReturnedValue method_get_byteOffset(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
205 | static ReturnedValue method_get_length(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
206 | |
207 | static ReturnedValue method_copyWithin(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
208 | static ReturnedValue method_entries(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
209 | static ReturnedValue method_every(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
210 | static ReturnedValue method_fill(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
211 | static ReturnedValue method_filter(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
212 | static ReturnedValue method_find(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
213 | static ReturnedValue method_findIndex(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
214 | static ReturnedValue method_forEach(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
215 | static ReturnedValue method_includes(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
216 | static ReturnedValue method_indexOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
217 | static ReturnedValue method_join(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
218 | static ReturnedValue method_keys(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
219 | static ReturnedValue method_lastIndexOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
220 | static ReturnedValue method_map(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
221 | static ReturnedValue method_reduce(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
222 | static ReturnedValue method_reduceRight(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
223 | static ReturnedValue method_reverse(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
224 | static ReturnedValue method_some(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
225 | static ReturnedValue method_values(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
226 | static ReturnedValue method_set(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
227 | static ReturnedValue method_slice(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
228 | static ReturnedValue method_subarray(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
229 | static ReturnedValue method_toLocaleString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
230 | |
231 | static ReturnedValue method_get_toStringTag(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
232 | |
233 | }; |
234 | |
235 | struct TypedArrayPrototype : Object |
236 | { |
237 | V4_OBJECT2(TypedArrayPrototype, Object) |
238 | V4_PROTOTYPE(objectPrototype) |
239 | |
240 | void init(ExecutionEngine *engine, TypedArrayCtor *ctor); |
241 | }; |
242 | |
243 | inline void |
244 | Heap::TypedArrayPrototype::init(TypedArray::Type t) |
245 | { |
246 | Object::init(); |
247 | type = t; |
248 | } |
249 | |
250 | } // namespace QV4 |
251 | |
252 | QT_END_NAMESPACE |
253 | |
254 | #endif |
255 | |