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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QJSONVALUE_H
#define QJSONVALUE_H
#include <QtCore/qglobal.h>
#include <QtCore/qstring.h>
#include <QtCore/qshareddata.h>
#include <QtCore/qcborvalue.h>
QT_BEGIN_NAMESPACE
class QVariant;
class QJsonArray;
class QJsonObject;
class QCborContainerPrivate;
namespace QJsonPrivate {
class Value;
}
class Q_CORE_EXPORT QJsonValue
{
public:
enum Type {
Null = 0x0,
Bool = 0x1,
Double = 0x2,
String = 0x3,
Array = 0x4,
Object = 0x5,
Undefined = 0x80
};
QJsonValue(Type = Null);
QJsonValue(bool b);
QJsonValue(double n);
QJsonValue(int n);
QJsonValue(qint64 v);
QJsonValue(const QString &s);
QJsonValue(QLatin1String s);
#ifndef QT_NO_CAST_FROM_ASCII
inline QT_ASCII_CAST_WARN QJsonValue(const char *s)
: QJsonValue(QString::fromUtf8(s)) {}
#endif
QJsonValue(const QJsonArray &a);
QJsonValue(const QJsonObject &o);
~QJsonValue();
QJsonValue(const QJsonValue &other);
QJsonValue &operator =(const QJsonValue &other);
QJsonValue(QJsonValue &&other) noexcept;
QJsonValue &operator =(QJsonValue &&other) noexcept
{
swap(other);
return *this;
}
void swap(QJsonValue &other) noexcept;
static QJsonValue fromVariant(const QVariant &variant);
QVariant toVariant() const;
Type type() const;
inline bool isNull() const { return type() == Null; }
inline bool isBool() const { return type() == Bool; }
inline bool isDouble() const { return type() == Double; }
inline bool isString() const { return type() == String; }
inline bool isArray() const { return type() == Array; }
inline bool isObject() const { return type() == Object; }
inline bool isUndefined() const { return type() == Undefined; }
bool toBool(bool defaultValue = false) const;
int toInt(int defaultValue = 0) const;
qint64 toInteger(qint64 defaultValue = 0) const;
double toDouble(double defaultValue = 0) const;
QString toString() const;
QString toString(const QString &defaultValue) const;
QJsonArray toArray() const;
QJsonArray toArray(const QJsonArray &defaultValue) const;
QJsonObject toObject() const;
QJsonObject toObject(const QJsonObject &defaultValue) const;
#if QT_STRINGVIEW_LEVEL < 2
const QJsonValue operator[](const QString &key) const;
#endif
const QJsonValue operator[](QStringView key) const;
const QJsonValue operator[](QLatin1String key) const;
const QJsonValue operator[](int i) const;
bool operator==(const QJsonValue &other) const;
bool operator!=(const QJsonValue &other) const;
private:
// avoid implicit conversions from char * to bool
QJsonValue(const void *) = delete;
friend class QJsonPrivate::Value;
friend class QJsonArray;
friend class QJsonObject;
friend class QCborValue;
friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonValue &);
friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QJsonValue &);
// ### Qt6: Remove this.
void stringDataFromQStringHelper(const QString &string);
void detach();
// ### Qt6: change to an actual QCborValue
qint64 n = 0;
QExplicitlySharedDataPointer<QCborContainerPrivate> d; // needed for Objects, Arrays, Strings
QCborValue::Type t;
// Assert binary compatibility with pre-5.15 QJsonValue
Q_STATIC_ASSERT(sizeof(QExplicitlySharedDataPointer<QCborContainerPrivate>) == sizeof(void *));
Q_STATIC_ASSERT(sizeof(QCborValue::Type) == sizeof(QJsonValue::Type));
};
class Q_CORE_EXPORT QJsonValueRef
{
public:
QJsonValueRef(QJsonArray *array, int idx)
: a(array), is_object(false), index(static_cast<uint>(idx)) {}
QJsonValueRef(QJsonObject *object, int idx)
: o(object), is_object(true), index(static_cast<uint>(idx)) {}
inline operator QJsonValue() const { return toValue(); }
QJsonValueRef &operator = (const QJsonValue &val);
QJsonValueRef &operator = (const QJsonValueRef &val);
QVariant toVariant() const;
inline QJsonValue::Type type() const { return toValue().type(); }
inline bool isNull() const { return type() == QJsonValue::Null; }
inline bool isBool() const { return type() == QJsonValue::Bool; }
inline bool isDouble() const { return type() == QJsonValue::Double; }
inline bool isString() const { return type() == QJsonValue::String; }
inline bool isArray() const { return type() == QJsonValue::Array; }
inline bool isObject() const { return type() == QJsonValue::Object; }
inline bool isUndefined() const { return type() == QJsonValue::Undefined; }
inline bool toBool() const { return toValue().toBool(); }
inline int toInt() const { return toValue().toInt(); }
inline double toDouble() const { return toValue().toDouble(); }
inline QString toString() const { return toValue().toString(); }
QJsonArray toArray() const;
QJsonObject toObject() const;
// ### Qt 6: Add default values
inline bool toBool(bool defaultValue) const { return toValue().toBool(defaultValue); }
inline int toInt(int defaultValue) const { return toValue().toInt(defaultValue); }
inline double toDouble(double defaultValue) const { return toValue().toDouble(defaultValue); }
inline QString toString(const QString &defaultValue) const { return toValue().toString(defaultValue); }
inline bool operator==(const QJsonValue &other) const { return toValue() == other; }
inline bool operator!=(const QJsonValue &other) const { return toValue() != other; }
private:
QJsonValue toValue() const;
union {
QJsonArray *a;
QJsonObject *o;
};
uint is_object : 1;
uint index : 31;
};
// ### Qt 6: Get rid of these fake pointer classes
class QJsonValuePtr
{
QJsonValue value;
public:
explicit QJsonValuePtr(const QJsonValue& val)
: value(val) {}
QJsonValue& operator*() { return value; }
QJsonValue* operator->() { return &value; }
};
class QJsonValueRefPtr
{
QJsonValueRef valueRef;
public:
QJsonValueRefPtr(QJsonArray *array, int idx)
: valueRef(array, idx) {}
QJsonValueRefPtr(QJsonObject *object, int idx)
: valueRef(object, idx) {}
QJsonValueRef& operator*() { return valueRef; }
QJsonValueRef* operator->() { return &valueRef; }
};
Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QJsonValue)
Q_CORE_EXPORT uint qHash(const QJsonValue &value, uint seed = 0);
#if !defined(QT_NO_DEBUG_STREAM) && !defined(QT_JSON_READONLY)
Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonValue &);
#endif
#ifndef QT_NO_DATASTREAM
Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QJsonValue &);
Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QJsonValue &);
#endif
QT_END_NAMESPACE
#endif // QJSONVALUE_H
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