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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 Qt Creator.
**
** 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.
**
****************************************************************************/
#include "FastPreprocessor.h"
#include <cplusplus/Literals.h>
#include <cplusplus/TranslationUnit.h>
#include <QDir>
using namespace CPlusPlus;
FastPreprocessor::FastPreprocessor(const Snapshot &snapshot)
: _snapshot(snapshot)
, _preproc(this, &_env)
{ }
// This is a temporary fix to handle non-ascii characters. This can be removed when the lexer can
// handle multi-byte characters.
static QByteArray convertToLatin1(const QByteArray &contents)
{
const char *p = contents.constData();
while (char ch = *p++)
if (ch & 0x80)
return QString::fromUtf8(contents).toLatin1();
return contents;
}
QByteArray FastPreprocessor::run(Document::Ptr newDoc, const QByteArray &source)
{
std::swap(newDoc, _currentDoc);
const QString fileName = _currentDoc->fileName();
_preproc.setExpandFunctionlikeMacros(false);
_preproc.setKeepComments(true);
if (Document::Ptr doc = _snapshot.document(fileName)) {
_merged.insert(fileName);
for (Snapshot::const_iterator i = _snapshot.begin(), ei = _snapshot.end(); i != ei; ++i) {
if (isInjectedFile(i.key()))
mergeEnvironment(i.key());
}
foreach (const Document::Include &i, doc->resolvedIncludes())
mergeEnvironment(i.resolvedFileName());
}
QByteArray src = convertToLatin1(source);
const QByteArray preprocessed = _preproc.run(fileName, src);
// qDebug("FastPreprocessor::run for %s produced [[%s]]", fileName.toUtf8().constData(), preprocessed.constData());
std::swap(newDoc, _currentDoc);
return preprocessed;
}
void FastPreprocessor::sourceNeeded(unsigned line, const QString &fileName,
IncludeType mode)
{
Q_ASSERT(_currentDoc);
// CHECKME: Is that cleanName needed?
QString cleanName = QDir::cleanPath(fileName);
_currentDoc->addIncludeFile(Document::Include(fileName, cleanName, line, mode));
mergeEnvironment(fileName);
}
void FastPreprocessor::mergeEnvironment(const QString &fileName)
{
if (! _merged.contains(fileName)) {
_merged.insert(fileName);
if (Document::Ptr doc = _snapshot.document(fileName)) {
foreach (const Document::Include &i, doc->resolvedIncludes())
mergeEnvironment(i.resolvedFileName());
_env.addMacros(doc->definedMacros());
}
}
}
void FastPreprocessor::macroAdded(const Macro ¯o)
{
Q_ASSERT(_currentDoc);
_currentDoc->appendMacro(macro);
}
static const Macro revision(const Snapshot &s, const Macro &m)
{
if (Document::Ptr d = s.document(m.fileName())) {
Macro newMacro(m);
newMacro.setFileRevision(d->revision());
return newMacro;
}
return m;
}
void FastPreprocessor::passedMacroDefinitionCheck(unsigned offset, unsigned line, const Macro ¯o)
{
Q_ASSERT(_currentDoc);
_currentDoc->addMacroUse(revision(_snapshot, macro),
offset, macro.name().length(), line,
QVector<MacroArgumentReference>());
}
void FastPreprocessor::failedMacroDefinitionCheck(unsigned offset, const ByteArrayRef &name)
{
Q_ASSERT(_currentDoc);
_currentDoc->addUndefinedMacroUse(QByteArray(name.start(), name.size()), offset);
}
void FastPreprocessor::notifyMacroReference(unsigned offset, unsigned line, const Macro ¯o)
{
Q_ASSERT(_currentDoc);
_currentDoc->addMacroUse(revision(_snapshot, macro),
offset, macro.name().length(), line,
QVector<MacroArgumentReference>());
}
void FastPreprocessor::startExpandingMacro(unsigned offset, unsigned line,
const Macro ¯o,
const QVector<MacroArgumentReference> &actuals)
{
Q_ASSERT(_currentDoc);
_currentDoc->addMacroUse(revision(_snapshot, macro),
offset, macro.name().length(), line, actuals);
}
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