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/*
This file is part of the clazy static checker.
Copyright (C) 2016-2017 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.
*/
#ifndef CLAZY_UNUSED_NON_TRIVIAL_VARIABLE_H
#define CLAZY_UNUSED_NON_TRIVIAL_VARIABLE_H
#include "checkbase.h"
namespace clang {
class Stmt;
class VarDecl;
}
/**
* Warns about unused Qt value classes.
* Compilers usually only warn when trivial classes are unused and don't emit warnings for non-trivial classes.
* This check has a whitelist of common Qt classes such as containers, QFont, QUrl, etc and warns for those too.
*
* See README-unused-non-trivial-variable.md for more information
*/
class UnusedNonTrivialVariable : public CheckBase
{
public:
explicit UnusedNonTrivialVariable(const std::string &name, ClazyContext *context);
void VisitStmt(clang::Stmt *stmt) override;
private:
void handleVarDecl(clang::VarDecl *varDecl);
bool isInterestingType(clang::QualType t) const;
bool isUninterestingType(const clang::CXXRecordDecl *record) const;
std::vector<std::string> m_userBlacklist;
std::vector<std::string> m_userWhitelist;
};
#endif
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