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/*
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>
namespace clang {
class FixItHint;
class ConditionalOperator;
class CallExpr;
class StringLiteral;
class ConditionalOperator;
}
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;
protected:
std::vector<std::string> supportedOptions() const override;
private:
void VisitCtor(clang::Stmt *);
void VisitOperatorCall(clang::Stmt *);
void VisitFromLatin1OrUtf8(clang::Stmt *);
void VisitAssignOperatorQLatin1String(clang::Stmt *);
std::vector<clang::FixItHint> fixItReplaceWordWithWord(clang::Stmt *begin, const std::string &replacement, const std::string &replacee, int fixitType);
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
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