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/*
This file is part of the clazy static checker.
Copyright (C) 2018 Sergio Martins <smartins@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "qt-keywords.h"
#include "FixItUtils.h"
#include "ClazyContext.h"
#include "PreProcessorVisitor.h"
#include "clazy_stl.h"
#include <clang/Lex/MacroInfo.h>
#include <clang/Basic/Diagnostic.h>
#include <clang/Basic/IdentifierTable.h>
#include <clang/Basic/SourceManager.h>
#include <clang/Lex/Token.h>
#include <llvm/ADT/StringRef.h>
#include <ctype.h>
#include <algorithm>
#include <vector>
using namespace clang;
using namespace std;
QtKeywords::QtKeywords(const std::string &name, ClazyContext *context)
: CheckBase(name, context)
{
enablePreProcessorCallbacks();
context->enablePreprocessorVisitor();
}
void QtKeywords::VisitMacroExpands(const Token ¯oNameTok, const SourceRange &range, const clang::MacroInfo *minfo)
{
IdentifierInfo *ii = macroNameTok.getIdentifierInfo();
if (!ii || !minfo)
return;
if (auto ppvisitor = m_context->preprocessorVisitor) {
// Save some CPU cycles. No point in running if QT_NO_KEYWORDS
if (ppvisitor->isQT_NO_KEYWORDS())
return;
}
static const vector<StringRef> keywords = { "foreach", "signals", "slots", "emit" };
std::string name = static_cast<std::string>(ii->getName());
if (!clazy::contains(keywords, name))
return;
// Make sure the macro is Qt's. It must be defined in Qt's headers, not 3rdparty
std::string qtheader = static_cast<std::string>(sm().getFilename(sm().getSpellingLoc(minfo->getDefinitionLoc())));
if (!clazy::endsWith(qtheader, "qglobal.h") && !clazy::endsWith(qtheader, "qobjectdefs.h"))
return;
std::vector<FixItHint> fixits;
std::string replacement = "Q_" + name;
std::transform(replacement.begin(), replacement.end(), replacement.begin(), ::toupper);
fixits.push_back(clazy::createReplacement(range, replacement));
emitWarning(range.getBegin(), "Using a Qt keyword (" + string(ii->getName()) + ")", fixits);
}
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