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Diffstat (limited to 'src/corelib/serialization/qjsonparser_p.h')
-rw-r--r-- | src/corelib/serialization/qjsonparser_p.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/corelib/serialization/qjsonparser_p.h b/src/corelib/serialization/qjsonparser_p.h new file mode 100644 index 0000000000..379256847f --- /dev/null +++ b/src/corelib/serialization/qjsonparser_p.h @@ -0,0 +1,128 @@ +/**************************************************************************** +** +** 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 QJSONPARSER_P_H +#define QJSONPARSER_P_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 <QtCore/private/qglobal_p.h> +#include <qjsondocument.h> +#include <qvarlengtharray.h> + +QT_BEGIN_NAMESPACE + +namespace QJsonPrivate { + +class Parser +{ +public: + Parser(const char *json, int length); + + QJsonDocument parse(QJsonParseError *error); + + class ParsedObject + { + public: + ParsedObject(Parser *p, int pos) : parser(p), objectPosition(pos) { + offsets.reserve(64); + } + void insert(uint offset); + + Parser *parser; + int objectPosition; + QVector<uint> offsets; + + inline QJsonPrivate::Entry *entryAt(int i) const { + return reinterpret_cast<QJsonPrivate::Entry *>(parser->data + objectPosition + offsets[i]); + } + }; + + +private: + inline void eatBOM(); + inline bool eatSpace(); + inline char nextToken(); + + bool parseObject(); + bool parseArray(); + bool parseMember(int baseOffset); + bool parseString(bool *latin1); + bool parseValue(QJsonPrivate::Value *val, int baseOffset); + bool parseNumber(QJsonPrivate::Value *val, int baseOffset); + const char *head; + const char *json; + const char *end; + + char *data; + int dataLength; + int current; + int nestingLevel; + QJsonParseError::ParseError lastError; + + inline int reserveSpace(int space) { + if (current + space >= dataLength) { + dataLength = 2*dataLength + space; + char *newData = (char *)realloc(data, dataLength); + if (!newData) { + lastError = QJsonParseError::DocumentTooLarge; + return -1; + } + data = newData; + } + int pos = current; + current += space; + return pos; + } +}; + +} + +QT_END_NAMESPACE + +#endif |