QScriptValue ArrayBufferClass::toScriptValue(QScriptEngine* engine, const QByteArray& ba) {
QScriptValue ctor = engine->globalObject().property(CLASS_NAME);
ArrayBufferClass* cls = qscriptvalue_cast<ArrayBufferClass*>(ctor.data());
if (!cls) {
if (engine->currentContext()) {
engine->currentContext()->throwError("arrayBufferClass::toScriptValue -- could not get " + CLASS_NAME + " class constructor");
}
return QScriptValue::NullValue;
}
return cls->newInstance(ba);
}
QScriptValue ArrayBufferClass::construct(QScriptContext* context, QScriptEngine* engine) {
ArrayBufferClass* cls = qscriptvalue_cast<ArrayBufferClass*>(context->callee().data());
if (!cls) {
// return if callee (function called) is not of type ArrayBuffer
return QScriptValue();
}
QScriptValue arg = context->argument(0);
if (!arg.isValid() || !arg.isNumber()) {
return QScriptValue();
}
quint32 size = arg.toInt32();
QScriptValue newObject = cls->newInstance(size);
if (context->isCalledAsConstructor()) {
// if called with keyword new, replace this object.
context->setThisObject(newObject);
return engine->undefinedValue();
}
return newObject;
}
QScriptValue TypedArray::newInstance(quint32 length) {
ArrayBufferClass* array = getScriptEngine()->getArrayBufferClass();
QScriptValue buffer = array->newInstance(length * _bytesPerElement);
return newInstance(buffer, 0, length);
}