checkpostfixoperator.h

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/*
 * Cppcheck - A tool for static C/C++ code analysis
 * Copyright (C) 2007-2024 Cppcheck team.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 
//---------------------------------------------------------------------------
#ifndef checkpostfixoperatorH
#define checkpostfixoperatorH
//---------------------------------------------------------------------------
 
#include "check.h"
#include "config.h"
#include "tokenize.h"
 
#include <string>
 
class ErrorLogger;
class Settings;
class Token;
 
/// @addtogroup Checks
/// @{
 
/**
 * @brief Using postfix operators ++ or -- rather than postfix operator.
 */
 
class CPPCHECKLIB CheckPostfixOperator : public Check {
    friend class TestPostfixOperator;
 
public:
    /** This constructor is used when registering the CheckPostfixOperator */
    CheckPostfixOperator() : Check(myName()) {}
 
private:
    /** This constructor is used when running checks. */
    CheckPostfixOperator(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
        : Check(myName(), tokenizer, settings, errorLogger) {}
 
    void runChecks(const Tokenizer &tokenizer, ErrorLogger *errorLogger) override {
        if (tokenizer.isC())
            return;
 
        CheckPostfixOperator checkPostfixOperator(&tokenizer, &tokenizer.getSettings(), errorLogger);
        checkPostfixOperator.postfixOperator();
    }
 
    /** Check postfix operators */
    void postfixOperator();
 
    /** Report Error */
    void postfixOperatorError(const Token *tok);
 
    void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings) const override {
        CheckPostfixOperator c(nullptr, settings, errorLogger);
        c.postfixOperatorError(nullptr);
    }
 
    static std::string myName() {
        return "Using postfix operators";
    }
 
    std::string classInfo() const override {
        return "Warn if using postfix operators ++ or -- rather than prefix operator\n";
    }
};
/// @}
//---------------------------------------------------------------------------
#endif // checkpostfixoperatorH