File indexing completed on 2024-05-12 17:13:15

 /*
     This file is part of the clazy static checker.
 
     Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
     Author: Sérgio Martins <sergio.martins@kdab.com>
 
     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.
 */
 
 #ifndef CLAZY_STRING_ALLOCATIONS_H
 #define CLAZY_STRING_ALLOCATIONS_H
 
 #include "checkbase.h"
 
 #include <map>
 #include <vector>
 #include <string>
 
 class ClazyContext;
 
 namespace clang {
 class FixItHint;
 class ConditionalOperator;
 class CallExpr;
 class StringLiteral;
 class ConditionalOperator;
 class Stmt;
 }
 
 struct Latin1Expr;
 
 enum FromFunction {
     FromLatin1,
     FromUtf8
 };
 
 
 /**
  * Finds places where there are unneeded memory allocations due to temporary QStrings.
  *
  * For example:
  * QString s = QLatin1String("foo"); // should be QStringLiteral
  * QString::fromLatin1("foo") and QString::fromUtf8("foo") // should be QStringLiteral, or QLatin1String if being passed to an overload taking QLatin1String
  *
  * See README-qstring-allocations for more information.
  */
 class QStringAllocations
     : public CheckBase
 {
 public:
     QStringAllocations(const std::string &name, ClazyContext *context);
     void VisitStmt(clang::Stmt *stm) override;
 
 private:
     void VisitCtor(clang::Stmt *);
     void VisitCtor(clang::CXXConstructExpr *);
     void VisitOperatorCall(clang::Stmt *);
     void VisitFromLatin1OrUtf8(clang::Stmt *);
     void VisitAssignOperatorQLatin1String(clang::Stmt *);
 
     void maybeEmitWarning(clang::SourceLocation loc, std::string error, std::vector<clang::FixItHint> fixits = {});
     std::vector<clang::FixItHint> fixItReplaceWordWithWord(clang::Stmt *begin, const std::string &replacement, const std::string &replacee);
     std::vector<clang::FixItHint> fixItReplaceWordWithWordInTernary(clang::ConditionalOperator *);
     std::vector<clang::FixItHint> fixItReplaceFromLatin1OrFromUtf8(clang::CallExpr *callExpr, FromFunction);
     std::vector<clang::FixItHint> fixItRawLiteral(clang::StringLiteral *stmt, const std::string &replacement);
 
     Latin1Expr qlatin1CtorExpr(clang::Stmt *stm, clang::ConditionalOperator * &ternary);
 };
 
 #endif