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| ****************************************************************************/ |
| #ifndef QV4ARRAYBUFFER_H |
| #define QV4ARRAYBUFFER_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qv4object_p.h" |
| #include "qv4functionobject_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace QV4 { |
| |
| namespace Heap { |
| |
| struct SharedArrayBufferCtor : FunctionObject { |
| void init(QV4::ExecutionContext *scope); |
| }; |
| |
| struct ArrayBufferCtor : SharedArrayBufferCtor { |
| void init(QV4::ExecutionContext *scope); |
| }; |
| |
| struct Q_QML_PRIVATE_EXPORT SharedArrayBuffer : Object { |
| void init(size_t length); |
| void init(const QByteArray& array); |
| void destroy(); |
| QTypedArrayData<char> *data; |
| bool isShared; |
| |
| uint byteLength() const { return data ? data->size : 0; } |
| |
| bool isDetachedBuffer() const { return !data; } |
| bool isSharedArrayBuffer() const { return isShared; } |
| }; |
| |
| struct Q_QML_PRIVATE_EXPORT ArrayBuffer : SharedArrayBuffer { |
| void init(size_t length) { |
| SharedArrayBuffer::init(length); |
| isShared = false; |
| } |
| void init(const QByteArray& array) { |
| SharedArrayBuffer::init(array); |
| isShared = false; |
| } |
| void detachArrayBuffer() { |
| if (data && !data->ref.deref()) |
| QTypedArrayData<char>::deallocate(data); |
| data = nullptr; |
| } |
| }; |
| |
| |
| } |
| |
| struct SharedArrayBufferCtor : FunctionObject |
| { |
| V4_OBJECT2(SharedArrayBufferCtor, FunctionObject) |
| |
| static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *); |
| static ReturnedValue virtualCall(const FunctionObject *f, const Value *thisObject, const Value *argv, int argc); |
| }; |
| |
| struct ArrayBufferCtor : SharedArrayBufferCtor |
| { |
| V4_OBJECT2(ArrayBufferCtor, SharedArrayBufferCtor) |
| |
| static ReturnedValue virtualCallAsConstructor(const FunctionObject *f, const Value *argv, int argc, const Value *); |
| |
| static ReturnedValue method_isView(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| }; |
| |
| struct Q_QML_PRIVATE_EXPORT SharedArrayBuffer : Object |
| { |
| V4_OBJECT2(SharedArrayBuffer, Object) |
| V4_NEEDS_DESTROY |
| V4_PROTOTYPE(sharedArrayBufferPrototype) |
| |
| QByteArray asByteArray() const; |
| uint byteLength() const { return d()->byteLength(); } |
| char *data() { Q_ASSERT(d()->data); return d()->data->data(); } |
| const char *constData() { Q_ASSERT(d()->data); return d()->data->data(); } |
| |
| bool isShared() { return d()->data->ref.isShared(); } |
| bool isDetachedBuffer() const { return !d()->data; } |
| bool isSharedArrayBuffer() const { return d()->isShared; } |
| }; |
| |
| struct Q_QML_PRIVATE_EXPORT ArrayBuffer : SharedArrayBuffer |
| { |
| V4_OBJECT2(ArrayBuffer, SharedArrayBuffer) |
| V4_NEEDS_DESTROY |
| V4_PROTOTYPE(arrayBufferPrototype) |
| |
| QByteArray asByteArray() const; |
| uint byteLength() const { return d()->byteLength(); } |
| char *data() { detach(); return d()->data ? d()->data->data() : nullptr; } |
| // ### is that detach needed? |
| const char *constData() { detach(); return d()->data ? d()->data->data() : nullptr; } |
| |
| bool isShared() { return d()->data && d()->data->ref.isShared(); } |
| void detach(); |
| void detachArrayBuffer() { d()->detachArrayBuffer(); } |
| }; |
| |
| struct SharedArrayBufferPrototype : Object |
| { |
| void init(ExecutionEngine *engine, Object *ctor); |
| |
| static ReturnedValue method_get_byteLength(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| static ReturnedValue method_slice(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| |
| static ReturnedValue slice(const FunctionObject *b, const Value *thisObject, const Value *argv, int argc, bool shared); |
| }; |
| |
| struct ArrayBufferPrototype : SharedArrayBufferPrototype |
| { |
| void init(ExecutionEngine *engine, Object *ctor); |
| |
| static ReturnedValue method_get_byteLength(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| static ReturnedValue method_slice(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| static ReturnedValue method_toString(const FunctionObject *, const Value *thisObject, const Value *argv, int argc); |
| }; |
| |
| |
| } // namespace QV4 |
| |
| QT_END_NAMESPACE |
| |
| #endif |