cppcheck/src/checkstl.h

130 lines
3.7 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2009 Daniel Marjamäki and 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 checkstlH
#define checkstlH
//---------------------------------------------------------------------------
#include "check.h"
class Token;
/** @brief %Check STL usage */
class CheckStl : public Check
{
public:
/** This constructor is used when registering the CheckClass */
CheckStl() : Check()
{ }
/** This constructor is used when running checks.. */
CheckStl(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
: Check(tokenizer, settings, errorLogger)
{ }
void runSimplifiedChecks(const Tokenizer *tokenizer, const Settings *settings, ErrorLogger *errorLogger)
{
CheckStl checkStl(tokenizer, settings, errorLogger);
checkStl.stlOutOfBounds();
checkStl.iterators();
checkStl.erase();
checkStl.pushback();
checkStl.stlBoundries();
}
/**
* Finds errors like this:
* for (unsigned ii = 0; ii <= foo.size(); ++ii)
*/
void stlOutOfBounds();
/**
* Finds errors like this:
* for (it = foo.begin(); it != bar.end(); ++it)
*/
void iterators();
/** Dereferencing an erased iterator */
void dereferenceErasedError(const Token *tok, const std::string &itername);
/**
* Dangerous usage of erase
*/
void erase();
/**
* Dangerous usage of push_back
*/
void pushback();
/**
* bad condition.. "it < alist.end()"
*/
void stlBoundries();
private:
/**
* Helper function used by the 'erase' function
* This function parses a loop
* @param it iterator token
*/
void eraseCheckLoop(const Token *it);
void stlOutOfBoundsError(const Token *tok, const std::string &num, const std::string &var);
void iteratorsError(const Token *tok, const std::string &container1, const std::string &container2);
void eraseError(const Token *tok);
void pushbackError(const Token *tok, const std::string &iterator_name);
void invalidPointerError(const Token *tok, const std::string &pointer_name);
void stlBoundriesError(const Token *tok);
void getErrorMessages()
{
std::cout << "===stl===" << "\n";
iteratorsError(0, "container1", "container2");
dereferenceErasedError(0, "iter");
stlOutOfBoundsError(0, "i", "foo");
eraseError(0);
pushbackError(0, "iterator");
invalidPointerError(0, "pointer");
stlBoundriesError(0);
}
std::string name() const
{
return "STL usage";
}
std::string classInfo() const
{
return "Check for invalid usage of STL:\n"
" * out of bounds errors\n"
" * misuse of iterators when iterating through a container\n"
" * dereferencing an erased iterator\n"
" * for vectors: using iterator/pointer after push_back has been used\n";
}
};
//---------------------------------------------------------------------------
#endif