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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
DECLARE_HEAP_OBJECT(TypedArray,Object)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
byteLengthTypedArray151 uint byteLength() const {
152 return d()->byteLength;
153 }
154
lengthTypedArray155 uint length() const {
156 return d()->byteLength/d()->type->bytesPerElement;
157 }
158
arrayDataTypedArray159 QTypedArrayData<char> *arrayData() {
160 return d()->buffer->data;
161 }
162
arrayTypeTypedArray163 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
init(TypedArray::Type t)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