117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2009 Daniel Marjamäki and Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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#ifndef checkexceptionsafetyH
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#define checkexceptionsafetyH
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//---------------------------------------------------------------------------
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#include "check.h"
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#include "settings.h"
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class Token;
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/// @addtogroup Checks
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/// @{
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class CheckExceptionSafety : public Check
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{
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public:
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/** This constructor is used when registering the CheckClass */
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CheckExceptionSafety() : Check()
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{ }
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/** This constructor is used when running checks.. */
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CheckExceptionSafety(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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: Check(tokenizer, settings, errorLogger)
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{ }
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void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
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{
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CheckExceptionSafety checkExceptionSafety(tokenizer, settings, errorLogger);
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checkExceptionSafety.destructors();
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checkExceptionSafety.unsafeNew();
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checkExceptionSafety.realloc();
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checkExceptionSafety.deallocThrow();
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}
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/** Don't throw exceptions in destructors */
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void destructors();
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/** unsafe use of "new" */
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void unsafeNew();
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/** Unsafe realloc */
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void realloc();
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/** deallocating memory and then throw */
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void deallocThrow();
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private:
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/** Don't throw exceptions in destructors */
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void destructorsError(const Token * const tok)
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{
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reportError(tok, Severity::style, "exceptThrowInDestructor", "Throwing exception in destructor");
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}
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/** Unsafe use of new */
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void unsafeNewError(const Token * const tok, const std::string &varname)
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{
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reportError(tok, Severity::style, "exceptNew", "Upon exception there is memory leak: " + varname);
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}
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/** Unsafe reallocation */
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void reallocError(const Token * const tok, const std::string &varname)
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{
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reportError(tok, Severity::style, "exceptRealloc", "Upon exception " + varname + " becomes a dead pointer");
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}
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void deallocThrowError(const Token * const tok, const std::string &varname)
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{
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reportError(tok, Severity::error, "exceptDeallocThrow", "Throwing exception in invalid state, " + varname + " points at deallocated memory");
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}
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void getErrorMessages()
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{
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destructorsError(0);
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unsafeNewError(0, "p");
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reallocError(0, "p");
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deallocThrowError(0, "p");
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}
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std::string name() const
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{
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return "Exception Safety";
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}
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std::string classInfo() const
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{
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return "Checking exception safety\n"
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" * Throwing exceptions in destructors\n"
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" * Unsafe use of 'new'\n"
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" * Unsafe reallocation\n"
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" * Throwing exception during invalid state";
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}
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};
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/// @}
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//---------------------------------------------------------------------------
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#endif
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