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Diffstat (limited to 'src/declarative/qml/parser/qdeclarativejsengine_p.cpp')
| -rw-r--r-- | src/declarative/qml/parser/qdeclarativejsengine_p.cpp | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/declarative/qml/parser/qdeclarativejsengine_p.cpp b/src/declarative/qml/parser/qdeclarativejsengine_p.cpp new file mode 100644 index 0000000..7d39134 --- /dev/null +++ b/src/declarative/qml/parser/qdeclarativejsengine_p.cpp @@ -0,0 +1,212 @@ +/**************************************************************************** +** +** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdeclarativejsengine_p.h" + +#include "qdeclarativejsglobal_p.h" +#include "qdeclarativejsnodepool_p.h" + +#include <qnumeric.h> +#include <QHash> + +QT_QML_BEGIN_NAMESPACE + +namespace QDeclarativeJS { + +uint qHash(const QDeclarativeJS::NameId &id) +{ return qHash(id.asString()); } + +QString numberToString(double value) +{ return QString::number(value); } + +int Ecma::RegExp::flagFromChar(const QChar &ch) +{ + static QHash<QChar, int> flagsHash; + if (flagsHash.isEmpty()) { + flagsHash[QLatin1Char('g')] = Global; + flagsHash[QLatin1Char('i')] = IgnoreCase; + flagsHash[QLatin1Char('m')] = Multiline; + } + QHash<QChar, int>::const_iterator it; + it = flagsHash.constFind(ch); + if (it == flagsHash.constEnd()) + return 0; + return it.value(); +} + +QString Ecma::RegExp::flagsToString(int flags) +{ + QString result; + if (flags & Global) + result += QLatin1Char('g'); + if (flags & IgnoreCase) + result += QLatin1Char('i'); + if (flags & Multiline) + result += QLatin1Char('m'); + return result; +} + +NodePool::NodePool(const QString &fileName, Engine *engine) + : m_fileName(fileName), m_engine(engine) +{ + m_engine->setNodePool(this); +} + +NodePool::~NodePool() +{ +} + +Code *NodePool::createCompiledCode(AST::Node *, CompilationUnit &) +{ + Q_ASSERT(0); + return 0; +} + +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), _nodePool(0) +{ } + +Engine::~Engine() +{ } + +QSet<NameId> Engine::literals() const +{ return _literals; } + +void Engine::addComment(int pos, int len, int line, int col) +{ if (len > 0) _comments.append(QDeclarativeJS::AST::SourceLocation(pos, len, line, col)); } + +QList<QDeclarativeJS::AST::SourceLocation> Engine::comments() const +{ return _comments; } + +NameId *Engine::intern(const QChar *u, int s) +{ return const_cast<NameId *>(&*_literals.insert(NameId(u, s))); } + +QString Engine::toString(NameId *id) +{ return id->asString(); } + +Lexer *Engine::lexer() const +{ return _lexer; } + +void Engine::setLexer(Lexer *lexer) +{ _lexer = lexer; } + +NodePool *Engine::nodePool() const +{ return _nodePool; } + +void Engine::setNodePool(NodePool *nodePool) +{ _nodePool = nodePool; } + + + +} // end of namespace QDeclarativeJS + +QT_QML_END_NAMESPACE |