diff options
Diffstat (limited to 'src/qml/qml/parser/qqmljsengine_p.cpp')
-rw-r--r-- | src/qml/qml/parser/qqmljsengine_p.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/qml/qml/parser/qqmljsengine_p.cpp b/src/qml/qml/parser/qqmljsengine_p.cpp new file mode 100644 index 0000000000..459ba8d7dc --- /dev/null +++ b/src/qml/qml/parser/qqmljsengine_p.cpp @@ -0,0 +1,161 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qqmljsengine_p.h" +#include "qqmljsglobal_p.h" + +#include <qnumeric.h> +#include <QHash> +#include <QDebug> + +QT_QML_BEGIN_NAMESPACE + +namespace QQmlJS { + +static int toDigit(char c) +{ + if ((c >= '0') && (c <= '9')) + return c - '0'; + else if ((c >= 'a') && (c <= 'z')) + return 10 + c - 'a'; + else if ((c >= 'A') && (c <= 'Z')) + return 10 + c - 'A'; + return -1; +} + +double integerFromString(const char *buf, int size, int radix) +{ + if (size == 0) + return qSNaN(); + + double sign = 1.0; + int i = 0; + if (buf[0] == '+') { + ++i; + } else if (buf[0] == '-') { + sign = -1.0; + ++i; + } + + if (((size-i) >= 2) && (buf[i] == '0')) { + if (((buf[i+1] == 'x') || (buf[i+1] == 'X')) + && (radix < 34)) { + if ((radix != 0) && (radix != 16)) + return 0; + radix = 16; + i += 2; + } else { + if (radix == 0) { + radix = 8; + ++i; + } + } + } else if (radix == 0) { + radix = 10; + } + + int j = i; + for ( ; i < size; ++i) { + int d = toDigit(buf[i]); + if ((d == -1) || (d >= radix)) + break; + } + double result; + if (j == i) { + if (!qstrcmp(buf, "Infinity")) + result = qInf(); + else + result = qSNaN(); + } else { + result = 0; + double multiplier = 1; + for (--i ; i >= j; --i, multiplier *= radix) + result += toDigit(buf[i]) * multiplier; + } + result *= sign; + return result; +} + +double integerFromString(const QString &str, int radix) +{ + QByteArray ba = str.trimmed().toLatin1(); + return integerFromString(ba.constData(), ba.size(), radix); +} + + +Engine::Engine() + : _lexer(0) +{ } + +Engine::~Engine() +{ } + +void Engine::setCode(const QString &code) +{ _code = code; } + +void Engine::addComment(int pos, int len, int line, int col) +{ if (len > 0) _comments.append(QQmlJS::AST::SourceLocation(pos, len, line, col)); } + +QList<QQmlJS::AST::SourceLocation> Engine::comments() const +{ return _comments; } + +Lexer *Engine::lexer() const +{ return _lexer; } + +void Engine::setLexer(Lexer *lexer) +{ _lexer = lexer; } + +MemoryPool *Engine::pool() +{ return &_pool; } + +QStringRef Engine::newStringRef(const QString &text) +{ + const int pos = _extraCode.length(); + _extraCode += text; + return _extraCode.midRef(pos, text.length()); +} + +QStringRef Engine::newStringRef(const QChar *chars, int size) +{ return newStringRef(QString(chars, size)); } + +} // end of namespace QQmlJS + +QT_QML_END_NAMESPACE |