File indexing completed on 2024-05-12 17:13:11
0001 /* 0002 This file is part of the clazy static checker. 0003 0004 Copyright (C) 2016-2017 Sergio Martins <smartins@kde.org> 0005 0006 This library is free software; you can redistribute it and/or 0007 modify it under the terms of the GNU Library General Public 0008 License as published by the Free Software Foundation; either 0009 version 2 of the License, or (at your option) any later version. 0010 0011 This library is distributed in the hope that it will be useful, 0012 but WITHOUT ANY WARRANTY; without even the implied warranty of 0013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0014 Library General Public License for more details. 0015 0016 You should have received a copy of the GNU Library General Public License 0017 along with this library; see the file COPYING.LIB. If not, write to 0018 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0019 Boston, MA 02110-1301, USA. 0020 */ 0021 0022 #ifndef CLAZY_UNUSED_NON_TRIVIAL_VARIABLE_H 0023 #define CLAZY_UNUSED_NON_TRIVIAL_VARIABLE_H 0024 0025 #include "checkbase.h" 0026 0027 #include <string> 0028 #include <vector> 0029 0030 class ClazyContext; 0031 0032 namespace clang { 0033 class Stmt; 0034 class VarDecl; 0035 class CXXRecordDecl; 0036 class QualType; 0037 } 0038 0039 /** 0040 * Warns about unused Qt value classes. 0041 * Compilers usually only warn when trivial classes are unused and don't emit warnings for non-trivial classes. 0042 * This check has a whitelist of common Qt classes such as containers, QFont, QUrl, etc and warns for those too. 0043 * 0044 * See README-unused-non-trivial-variable.md for more information 0045 */ 0046 class UnusedNonTrivialVariable 0047 : public CheckBase 0048 { 0049 public: 0050 explicit UnusedNonTrivialVariable(const std::string &name, ClazyContext *context); 0051 void VisitStmt(clang::Stmt *stmt) override; 0052 private: 0053 void handleVarDecl(clang::VarDecl *varDecl); 0054 bool isInterestingType(clang::QualType t) const; 0055 bool isUninterestingType(const clang::CXXRecordDecl *record) const; 0056 std::vector<std::string> m_userBlacklist; 0057 std::vector<std::string> m_userWhitelist; 0058 }; 0059 0060 #endif