cppcheck/lib/templatesimplifier.h

110 lines
3.6 KiB
C++

/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2012 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 templatesimplifierH
#define templatesimplifierH
//---------------------------------------------------------------------------
#include <set>
#include <list>
#include <string>
#include <vector>
class Token;
/// @addtogroup Core
/// @{
/** @brief Simplify templates from the preprocessed and partially simplified code. */
class TemplateSimplifier {
public:
TemplateSimplifier();
virtual ~TemplateSimplifier();
/**
* Used after simplifyTemplates to perform a little cleanup.
* Sometimes the simplifyTemplates isn't fully successful and then
* there are function calls etc with "wrong" syntax.
*/
static void cleanupAfterSimplify(Token *tokens);
/**
* @return 0 if there are no syntax errors or return token which identifies
* the location of syntax error.
*/
static const Token* hasComplicatedSyntaxErrorsInTemplates(Token *tokens);
/**
* is the token pointing at a template parameters block
* < int , 3 > => yes
* \param tok start token that must point at "<"
* \return number of parameters (invalid parameters => 0)
*/
static unsigned int templateParameters(const Token *tok);
/**
* Remove "template < ..." they can cause false positives because they are not expanded
*/
static void removeTemplates(Token *tok);
/**
* Expand specialized templates : "template<>.."
* @return names of expanded templates
*/
static std::set<std::string> simplifyTemplatesExpandSpecialized(Token *tokens);
/**
* Get template declarations
* @return list of template declarations
*/
static std::list<Token *> simplifyTemplatesGetTemplateDeclarations(Token *tokens, bool &codeWithTemplates);
/**
* Get template instantiations
* @return list of template instantiations
*/
static std::list<Token *> simplifyTemplatesGetTemplateInstantiations(Token *tokens);
/**
* simplify template instantiations (use default argument values)
* @param templates list of template declarations
* @param templateInstantiations list of template instantiations
*/
static void simplifyTemplatesUseDefaultArgumentValues(const std::list<Token *> &templates,
const std::list<Token *> &templateInstantiations);
/**
* Match template declaration/instantiation
* @param instance template instantiation
* @param name name of template
* @param numberOfArguments number of template arguments
* @param patternAfter pattern that must match the tokens after the ">"
* @return match => true
*/
static bool simplifyTemplatesInstantiateMatch(const Token *instance, const std::string &name, size_t numberOfArguments, const char patternAfter[]);
};
/// @}
//---------------------------------------------------------------------------
#endif