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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
** rights. These rights are described in the Digia 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qqmlscript_p.h"
#include <private/qqmljsengine_p.h>
#include <private/qqmljsparser_p.h>
#include <private/qqmljslexer_p.h>
#include <private/qqmljsmemorypool_p.h>
#include <private/qqmljsastvisitor_p.h>
#include <private/qqmljsast_p.h>
#include <QStack>
#include <QStringList>
#include <QCoreApplication>
#include <QtDebug>
QT_BEGIN_NAMESPACE
using namespace QQmlJS;
using namespace QQmlScript;
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;
}
/*
Searches for ".pragma <value>" declarations within \a script. Currently supported pragmas
are:
library
*/
QQmlScript::Object::ScriptBlock::Pragmas QQmlScript::Parser::extractPragmas(QString &script)
{
QQmlScript::Object::ScriptBlock::Pragmas rv = QQmlScript::Object::ScriptBlock::None;
const QString pragma(QLatin1String("pragma"));
const QString library(QLatin1String("library"));
QQmlJS::Lexer l(0);
l.setCode(script, 0);
int token = l.lex();
while (true) {
if (token != QQmlJSGrammar::T_DOT)
return rv;
int startOffset = l.tokenOffset();
int startLine = l.tokenStartLine();
token = l.lex();
if (token != QQmlJSGrammar::T_PRAGMA ||
l.tokenStartLine() != startLine ||
script.mid(l.tokenOffset(), l.tokenLength()) != pragma)
return rv;
token = l.lex();
if (token != QQmlJSGrammar::T_IDENTIFIER ||
l.tokenStartLine() != startLine)
return rv;
QString pragmaValue = script.mid(l.tokenOffset(), l.tokenLength());
int endOffset = l.tokenLength() + l.tokenOffset();
token = l.lex();
if (l.tokenStartLine() == startLine)
return rv;
if (pragmaValue == library) {
rv |= QQmlScript::Object::ScriptBlock::Shared;
replaceWithSpace(script, startOffset, endOffset - startOffset);
} else {
return rv;
}
}
return rv;
}
QT_END_NAMESPACE
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