1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3#ifndef QV4TYPEDARRAY_H
4#define QV4TYPEDARRAY_H
5
6//
7// W A R N I N G
8// -------------
9//
10// This file is not part of the Qt API. It exists purely as an
11// implementation detail. This header file may change from version to
12// version without notice, or even be removed.
13//
14// We mean it.
15//
16
17#include "qv4object_p.h"
18#include "qv4functionobject_p.h"
19#include "qv4arraybuffer_p.h"
20
21QT_BEGIN_NAMESPACE
22
23namespace QV4 {
24
25struct ArrayBuffer;
26
27enum TypedArrayType {
28 Int8Array,
29 UInt8Array,
30 Int16Array,
31 UInt16Array,
32 Int32Array,
33 UInt32Array,
34 UInt8ClampedArray,
35 Float32Array,
36 Float64Array,
37 NTypedArrayTypes
38};
39
40enum AtomicModifyOps {
41 AtomicAdd,
42 AtomicAnd,
43 AtomicExchange,
44 AtomicOr,
45 AtomicSub,
46 AtomicXor,
47 NAtomicModifyOps
48};
49
50struct TypedArrayOperations {
51 typedef ReturnedValue (*Read)(const char *data);
52 typedef void (*Write)(char *data, Value value);
53 typedef ReturnedValue (*AtomicModify)(char *data, Value value);
54 typedef ReturnedValue (*AtomicCompareExchange)(char *data, Value expected, Value v);
55 typedef ReturnedValue (*AtomicLoad)(char *data);
56 typedef ReturnedValue (*AtomicStore)(char *data, Value value);
57
58 template<typename T>
59 static constexpr TypedArrayOperations create(const char *name);
60 template<typename T>
61 static constexpr TypedArrayOperations createWithAtomics(const char *name);
62
63 int bytesPerElement;
64 const char *name;
65 Read read;
66 Write write;
67 AtomicModify atomicModifyOps[AtomicModifyOps::NAtomicModifyOps];
68 AtomicCompareExchange atomicCompareExchange;
69 AtomicLoad atomicLoad;
70 AtomicStore atomicStore;
71};
72
73namespace Heap {
74
75#define TypedArrayMembers(class, Member) \
76 Member(class, Pointer, ArrayBuffer *, buffer) \
77 Member(class, NoMark, const TypedArrayOperations *, type) \
78 Member(class, NoMark, uint, byteLength) \
79 Member(class, NoMark, uint, byteOffset) \
80 Member(class, NoMark, uint, arrayType)
81
82DECLARE_HEAP_OBJECT(TypedArray, Object) {
83 DECLARE_MARKOBJECTS(TypedArray)
84 using Type = TypedArrayType;
85
86 void init(Type t);
87};
88
89struct IntrinsicTypedArrayCtor : FunctionObject {
90};
91
92struct TypedArrayCtor : FunctionObject {
93 void init(QV4::ExecutionContext *scope, TypedArray::Type t);
94
95 TypedArray::Type type;
96};
97
98struct IntrinsicTypedArrayPrototype : Object {
99};
100
101struct TypedArrayPrototype : Object {
102 inline void init(TypedArray::Type t);
103 TypedArray::Type type;
104};
105
106
107}
108
109struct Q_QML_PRIVATE_EXPORT TypedArray : Object
110{
111 V4_OBJECT2(TypedArray, Object)
112
113 static Heap::TypedArray *create(QV4::ExecutionEngine *e, Heap::TypedArray::Type t);
114
115 uint byteOffset() const noexcept { return d()->byteOffset; }
116 uint byteLength() const noexcept { return d()->byteLength; }
117 int bytesPerElement() const noexcept { return d()->type->bytesPerElement; }
118 uint length() const noexcept { return d()->byteLength / d()->type->bytesPerElement; }
119
120 char *arrayData() noexcept { return d()->buffer->arrayData(); }
121 const char *constArrayData() const noexcept { return d()->buffer->constArrayData(); }
122 bool hasDetachedArrayData() const noexcept { return d()->buffer->hasDetachedArrayData(); }
123 uint arrayDataLength() const noexcept { return d()->buffer->arrayDataLength(); }
124
125 Heap::TypedArray::Type arrayType() const noexcept
126 {
127 return static_cast<Heap::TypedArray::Type>(d()->arrayType);
128 }
129 using Object::get;
130
131 static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty);
132 static bool virtualHasProperty(const Managed *m, PropertyKey id);
133 static PropertyAttributes virtualGetOwnProperty(const Managed *m, PropertyKey id, Property *p);
134 static bool virtualPut(Managed *m, PropertyKey id, const Value &value, Value *receiver);
135 static bool virtualDefineOwnProperty(Managed *m, PropertyKey id, const Property *p, PropertyAttributes attrs);
136 static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target);
137
138};
139
140struct IntrinsicTypedArrayCtor: FunctionObject
141{
142 V4_OBJECT2(IntrinsicTypedArrayCtor, FunctionObject)
143
144 static constexpr VTable::Call virtualCall = nullptr;
145
146 static ReturnedValue method_of(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
147 static ReturnedValue method_from(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
148};
149
150struct TypedArrayCtor: FunctionObject
151{
152 V4_OBJECT2(TypedArrayCtor, FunctionObject)
153
154 static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *);
155 static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc);
156};
157
158struct IntrinsicTypedArrayPrototype : Object
159{
160 V4_OBJECT2(IntrinsicTypedArrayPrototype, Object)
161 V4_PROTOTYPE(objectPrototype)
162
163 void init(ExecutionEngine *engine, IntrinsicTypedArrayCtor *ctor);
164
165 static ReturnedValue method_get_buffer(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
166 static ReturnedValue method_get_byteLength(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
167 static ReturnedValue method_get_byteOffset(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
168 static ReturnedValue method_get_length(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
169
170 static ReturnedValue method_copyWithin(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
171 static ReturnedValue method_entries(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
172 static ReturnedValue method_every(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
173 static ReturnedValue method_fill(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
174 static ReturnedValue method_filter(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
175 static ReturnedValue method_find(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
176 static ReturnedValue method_findIndex(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
177 static ReturnedValue method_forEach(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
178 static ReturnedValue method_includes(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
179 static ReturnedValue method_indexOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
180 static ReturnedValue method_join(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
181 static ReturnedValue method_keys(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
182 static ReturnedValue method_lastIndexOf(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
183 static ReturnedValue method_map(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
184 static ReturnedValue method_reduce(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
185 static ReturnedValue method_reduceRight(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
186 static ReturnedValue method_reverse(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
187 static ReturnedValue method_some(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
188 static ReturnedValue method_values(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
189 static ReturnedValue method_set(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
190 static ReturnedValue method_slice(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
191 static ReturnedValue method_subarray(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
192 static ReturnedValue method_toLocaleString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
193
194 static ReturnedValue method_get_toStringTag(const FunctionObject *, const Value *thisObject, const Value *argv, int argc);
195
196};
197
198struct TypedArrayPrototype : Object
199{
200 V4_OBJECT2(TypedArrayPrototype, Object)
201 V4_PROTOTYPE(objectPrototype)
202
203 void init(ExecutionEngine *engine, TypedArrayCtor *ctor);
204};
205
206inline void
207Heap::TypedArrayPrototype::init(TypedArray::Type t)
208{
209 Object::init();
210 type = t;
211}
212
213} // namespace QV4
214
215QT_END_NAMESPACE
216
217#endif
218

source code of qtdeclarative/src/qml/jsruntime/qv4typedarray_p.h