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/****************************************************************************
**
** 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 tools applications 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*
qmlcodeparser.cpp
*/
#include "private/qdeclarativejsast_p.h"
#include "private/qdeclarativejsastvisitor_p.h"
#include "private/qdeclarativejsnodepool_p.h"
#include "qmlcodeparser.h"
#include "node.h"
#include "tree.h"
#include "config.h"
#include "qmlvisitor.h"
QT_BEGIN_NAMESPACE
#define COMMAND_STARTPAGE Doc::alias("startpage")
#define COMMAND_VARIABLE Doc::alias("variable")
#define COMMAND_QMLCLASS Doc::alias("qmlclass")
#define COMMAND_QMLPROPERTY Doc::alias("qmlproperty")
#define COMMAND_QMLATTACHEDPROPERTY Doc::alias("qmlattachedproperty")
#define COMMAND_QMLINHERITS Doc::alias("inherits")
#define COMMAND_QMLSIGNAL Doc::alias("qmlsignal")
#define COMMAND_QMLATTACHEDSIGNAL Doc::alias("qmlattachedsignal")
#define COMMAND_QMLMETHOD Doc::alias("qmlmethod")
#define COMMAND_QMLATTACHEDMETHOD Doc::alias("qmlattachedmethod")
#define COMMAND_QMLDEFAULT Doc::alias("default")
#define COMMAND_QMLBASICTYPE Doc::alias("qmlbasictype")
QmlCodeParser::QmlCodeParser()
{
}
QmlCodeParser::~QmlCodeParser()
{
}
/*!
Initialize the code parser base class.
*/
void QmlCodeParser::initializeParser(const Config &config)
{
CodeParser::initializeParser(config);
lexer = new QDeclarativeJS::Lexer(&engine);
parser = new QDeclarativeJS::Parser(&engine);
}
void QmlCodeParser::terminateParser()
{
delete lexer;
delete parser;
}
QString QmlCodeParser::language()
{
return "QML";
}
QStringList QmlCodeParser::sourceFileNameFilter()
{
return QStringList("*.qml");
}
void QmlCodeParser::parseSourceFile(const Location& location,
const QString& filePath,
Tree *tree)
{
QFile in(filePath);
if (!in.open(QIODevice::ReadOnly)) {
location.error(tr("Cannot open QML file '%1'").arg(filePath));
return;
}
QString document = in.readAll();
in.close();
Location fileLocation(filePath);
QString newCode = document;
extractPragmas(newCode);
lexer->setCode(newCode, 1);
QSet<QString> topicCommandsAllowed = topicCommands();
QSet<QString> otherMetacommandsAllowed = otherMetaCommands();
QSet<QString> metacommandsAllowed = topicCommandsAllowed +
otherMetacommandsAllowed;
QDeclarativeJS::NodePool m_nodePool(filePath, &engine);
if (parser->parse()) {
QDeclarativeJS::AST::UiProgram *ast = parser->ast();
QmlDocVisitor visitor(filePath, newCode, &engine, tree, metacommandsAllowed);
QDeclarativeJS::AST::Node::accept(ast, &visitor);
}
}
void QmlCodeParser::doneParsingSourceFiles(Tree *tree)
{
}
/*!
Returns the set of strings reopresenting the topic commands.
*/
QSet<QString> QmlCodeParser::topicCommands()
{
return QSet<QString>() << COMMAND_VARIABLE
<< COMMAND_QMLCLASS
<< COMMAND_QMLPROPERTY
<< COMMAND_QMLATTACHEDPROPERTY
<< COMMAND_QMLSIGNAL
<< COMMAND_QMLATTACHEDSIGNAL
<< COMMAND_QMLMETHOD
<< COMMAND_QMLATTACHEDMETHOD
<< COMMAND_QMLBASICTYPE;
}
/*!
Returns the set of strings representing the common metacommands
plus some other metacommands.
*/
QSet<QString> QmlCodeParser::otherMetaCommands()
{
return commonMetaCommands() << COMMAND_STARTPAGE
<< COMMAND_QMLINHERITS
<< COMMAND_QMLDEFAULT;
}
/*
Copied and pasted from src/declarative/qml/qdeclarativescriptparser.cpp.
*/
static void replaceWithSpace(QString &str, int idx, int n)
{
QChar *data = str.data() + idx;
const QChar space(QLatin1Char(' '));
for (int ii = 0; ii < n; ++ii)
*data++ = space;
}
/*
Copied and pasted from src/declarative/qml/qdeclarativescriptparser.cpp then
modified to return no values.
Searches for ".pragma <value>" declarations within \a script. Currently supported pragmas
are:
library
*/
void QmlCodeParser::extractPragmas(QString &script)
{
const QString pragma(QLatin1String("pragma"));
const QString library(QLatin1String("library"));
QDeclarativeJS::Lexer l(0);
l.setCode(script, 0);
int token = l.lex();
while (true) {
if (token != QDeclarativeJSGrammar::T_DOT)
return;
int startOffset = l.tokenOffset();
int startLine = l.currentLineNo();
token = l.lex();
if (token != QDeclarativeJSGrammar::T_IDENTIFIER ||
l.currentLineNo() != startLine ||
script.mid(l.tokenOffset(), l.tokenLength()) != pragma)
return;
token = l.lex();
if (token != QDeclarativeJSGrammar::T_IDENTIFIER ||
l.currentLineNo() != startLine)
return;
QString pragmaValue = script.mid(l.tokenOffset(), l.tokenLength());
int endOffset = l.tokenLength() + l.tokenOffset();
token = l.lex();
if (l.currentLineNo() == startLine)
return;
if (pragmaValue == QLatin1String("library"))
replaceWithSpace(script, startOffset, endOffset - startOffset);
else
return;
}
return;
}
QT_END_NAMESPACE
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