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/*
This file is part of the clazy static checker.
Copyright (C) 2015 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 "missing-qobject-macro.h"
#include "ClazyContext.h"
#include "QtUtils.h"
#include "SourceCompatibilityHelpers.h"
#include <clang/AST/DeclBase.h>
#include <clang/AST/DeclCXX.h>
#include <clang/Basic/IdentifierTable.h>
#include <clang/Basic/LLVM.h>
#include <clang/Basic/SourceManager.h>
#include <clang/Lex/Token.h>
#include <llvm/ADT/StringRef.h>
#include <llvm/Support/Casting.h>
namespace clang {
class MacroInfo;
} // namespace clang
using namespace clang;
using namespace std;
MissingQObjectMacro::MissingQObjectMacro(const std::string &name, ClazyContext *context)
: CheckBase(name, context)
{
enablePreProcessorCallbacks();
}
void MissingQObjectMacro::VisitMacroExpands(const clang::Token &MacroNameTok, const clang::SourceRange &range, const MacroInfo *)
{
IdentifierInfo *ii = MacroNameTok.getIdentifierInfo();
if (ii && ii->getName() == "Q_OBJECT")
registerQ_OBJECT(range.getBegin());
}
void MissingQObjectMacro::VisitDecl(clang::Decl *decl)
{
CXXRecordDecl *record = dyn_cast<CXXRecordDecl>(decl);
if (!record || !record->hasDefinition() || record->getDefinition() != record || !clazy::isQObject(record))
return;
if (record->getDescribedClassTemplate() != nullptr) // moc doesn't accept Q_OBJECT in templates
return;
if (m_context->usingPreCompiledHeaders())
return;
const SourceLocation startLoc = getLocStart(decl);
for (const SourceLocation &loc : m_qobjectMacroLocations) {
if (sm().getFileID(loc) != sm().getFileID(startLoc))
continue; // Different file
if (sm().isBeforeInSLocAddrSpace(startLoc, loc) && sm().isBeforeInSLocAddrSpace(loc, getLocEnd(decl)))
return; // We found a Q_OBJECT after start and before end, it's ours.
}
emitWarning(startLoc, record->getQualifiedNameAsString() + " is missing a Q_OBJECT macro");
}
void MissingQObjectMacro::registerQ_OBJECT(SourceLocation loc)
{
m_qobjectMacroLocations.push_back(loc);
}
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