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39
40#ifndef QJSONDOCUMENT_H
41#define QJSONDOCUMENT_H
42
43#include <QtCore/qjsonvalue.h>
44#include <QtCore/qscopedpointer.h>
45
46#include <memory>
47
48QT_BEGIN_NAMESPACE
49
50class QDebug;
51class QCborValue;
52
53namespace QJsonPrivate { class Parser; }
54
55struct Q_CORE_EXPORT QJsonParseError
56{
57 enum ParseError {
58 NoError = 0,
59 UnterminatedObject,
60 MissingNameSeparator,
61 UnterminatedArray,
62 MissingValueSeparator,
63 IllegalValue,
64 TerminationByNumber,
65 IllegalNumber,
66 IllegalEscapeSequence,
67 IllegalUTF8String,
68 UnterminatedString,
69 MissingObject,
70 DeepNesting,
71 DocumentTooLarge,
72 GarbageAtEnd
73 };
74
75 QString errorString() const;
76
77 int offset;
78 ParseError error;
79};
80
81class QJsonDocumentPrivate;
82class Q_CORE_EXPORT QJsonDocument
83{
84public:
85#ifdef Q_LITTLE_ENDIAN
86 static const uint BinaryFormatTag = ('q') | ('b' << 8) | ('j' << 16) | ('s' << 24);
87#else
88 static const uint BinaryFormatTag = ('q' << 24) | ('b' << 16) | ('j' << 8) | ('s');
89#endif
90
91 QJsonDocument();
92 explicit QJsonDocument(const QJsonObject &object);
93 explicit QJsonDocument(const QJsonArray &array);
94 ~QJsonDocument();
95
96 QJsonDocument(const QJsonDocument &other);
97 QJsonDocument &operator =(const QJsonDocument &other);
98
99 QJsonDocument(QJsonDocument &&other) noexcept;
100
101 QJsonDocument &operator =(QJsonDocument &&other) noexcept
102 {
103 swap(other);
104 return *this;
105 }
106
107 void swap(QJsonDocument &other) noexcept;
108
109 enum DataValidation {
110 Validate,
111 BypassValidation
112 };
113
114#if QT_CONFIG(binaryjson) && QT_DEPRECATED_SINCE(5, 15)
115 QT_DEPRECATED_X("Use CBOR format instead")
116 static QJsonDocument fromRawData(const char *data, int size, DataValidation validation = Validate);
117
118 QT_DEPRECATED_X("Use CBOR format instead")
119 const char *rawData(int *size) const;
120
121 QT_DEPRECATED_X("Use CBOR format instead")
122 static QJsonDocument fromBinaryData(const QByteArray &data, DataValidation validation = Validate);
123
124 QT_DEPRECATED_X("Use CBOR format instead")
125 QByteArray toBinaryData() const;
126#endif // QT_CONFIG(binaryjson) && QT_DEPRECATED_SINCE(5, 15)
127
128 static QJsonDocument fromVariant(const QVariant &variant);
129 QVariant toVariant() const;
130
131 enum JsonFormat {
132 Indented,
133 Compact
134 };
135
136 static QJsonDocument fromJson(const QByteArray &json, QJsonParseError *error = nullptr);
137
138#if !defined(QT_JSON_READONLY) || defined(Q_CLANG_QDOC)
139 QByteArray toJson() const; //### Merge in Qt6
140 QByteArray toJson(JsonFormat format) const;
141#endif
142
143 bool isEmpty() const;
144 bool isArray() const;
145 bool isObject() const;
146
147 QJsonObject object() const;
148 QJsonArray array() const;
149
150 void setObject(const QJsonObject &object);
151 void setArray(const QJsonArray &array);
152
153#if QT_STRINGVIEW_LEVEL < 2
154 const QJsonValue operator[](const QString &key) const;
155#endif
156 const QJsonValue operator[](QStringView key) const;
157 const QJsonValue operator[](QLatin1String key) const;
158 const QJsonValue operator[](int i) const;
159
160 bool operator==(const QJsonDocument &other) const;
161 bool operator!=(const QJsonDocument &other) const { return !(*this == other); }
162
163 bool isNull() const;
164
165private:
166 friend class QJsonValue;
167 friend class QJsonPrivate::Parser;
168 friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonDocument &);
169
170 QJsonDocument(const QCborValue &data);
171
172 std::unique_ptr<QJsonDocumentPrivate> d;
173};
174
175Q_DECLARE_SHARED_NOT_MOVABLE_UNTIL_QT6(QJsonDocument)
176
177#if !defined(QT_NO_DEBUG_STREAM) && !defined(QT_JSON_READONLY)
178Q_CORE_EXPORT QDebug operator<<(QDebug, const QJsonDocument &);
179#endif
180
181#ifndef QT_NO_DATASTREAM
182Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QJsonDocument &);
183Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QJsonDocument &);
184#endif
185
186QT_END_NAMESPACE
187
188#endif // QJSONDOCUMENT_H
189

source code of qtbase/src/corelib/serialization/qjsondocument.h