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// Copyright (C) 2020 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QJSMANAGEDVALUE_H
#define QJSMANAGEDVALUE_H
#include <QtQml/qtqmlglobal.h>
#include <QtQml/qjsprimitivevalue.h>
#include <QtQml/qjsvalue.h>
QT_BEGIN_NAMESPACE
namespace QV4 {
struct Value;
struct ExecutionEngine;
}
class QJSEngine;
class Q_QML_EXPORT QJSManagedValue
{
Q_DISABLE_COPY(QJSManagedValue)
public:
enum Type {
Undefined,
Boolean,
Number,
String,
Object,
Symbol,
Function
};
QJSManagedValue() = default;
QJSManagedValue(QJSValue value, QJSEngine *engine);
QJSManagedValue(const QJSPrimitiveValue &value, QJSEngine *engine);
QJSManagedValue(const QVariant &variant, QJSEngine *engine);
QJSManagedValue(const QString &string, QJSEngine *engine);
~QJSManagedValue();
QJSManagedValue(QJSManagedValue &&other);
QJSManagedValue &operator=(QJSManagedValue &&other);
bool equals(const QJSManagedValue &other) const;
bool strictlyEquals(const QJSManagedValue &other) const;
QJSEngine *engine() const;
QJSManagedValue prototype() const;
void setPrototype(const QJSManagedValue &prototype);
Type type() const;
// Compatibility with QJSValue
bool isUndefined() const { return type() == Undefined; }
bool isBoolean() const { return type() == Boolean; }
bool isNumber() const { return type() == Number; }
bool isString() const { return type() == String; }
bool isObject() const { return type() == Object; }
bool isSymbol() const { return type() == Symbol; }
bool isFunction() const { return type() == Function; }
// Special case of Number
bool isInteger() const;
// Selected special cases of Object
bool isNull() const;
bool isRegularExpression() const;
bool isArray() const;
bool isUrl() const;
bool isVariant() const;
bool isQObject() const;
bool isQMetaObject() const;
bool isDate() const;
bool isError() const;
bool isJsMetaType() const;
// Native type transformations
QString toString() const;
double toNumber() const;
bool toBoolean() const;
// Variant-like type transformations
QJSPrimitiveValue toPrimitive() const;
QJSValue toJSValue() const;
QVariant toVariant() const;
// Special cases
int toInteger() const;
QRegularExpression toRegularExpression() const;
QUrl toUrl() const;
QObject *toQObject() const;
const QMetaObject *toQMetaObject() const;
QDateTime toDateTime() const;
// Properties of objects
bool hasProperty(const QString &name) const;
bool hasOwnProperty(const QString &name) const;
QJSValue property(const QString &name) const;
void setProperty(const QString &name, const QJSValue &value);
bool deleteProperty(const QString &name);
// ### Qt 7 use qsizetype instead.
// Array indexing
bool hasProperty(quint32 arrayIndex) const;
bool hasOwnProperty(quint32 arrayIndex) const;
QJSValue property(quint32 arrayIndex) const;
void setProperty(quint32 arrayIndex, const QJSValue &value);
bool deleteProperty(quint32 arrayIndex);
// Calling functions
QJSValue call(const QJSValueList &arguments = {}) const;
QJSValue callWithInstance(const QJSValue &instance, const QJSValueList &arguments = {}) const;
QJSValue callAsConstructor(const QJSValueList &arguments = {}) const;
// JavaScript metatypes
QJSManagedValue jsMetaType() const;
QStringList jsMetaMembers() const;
QJSManagedValue jsMetaInstantiate(const QJSValueList &values = {}) const;
private:
friend class QJSValue;
friend class QJSEngine;
QJSManagedValue(QV4::ExecutionEngine *engine);
QV4::Value *d = nullptr;
};
QT_END_NAMESPACE
#endif
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