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/* -*- C++ -*-
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2025 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 preprocessorH
#define preprocessorH
//---------------------------------------------------------------------------
#include "config.h"
#include "standards.h"
#include <cstddef>
#include <cstdint>
#include <istream>
#include <list>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include <simplecpp.h>
class ErrorLogger;
class Settings;
class SuppressionList;
/**
* @brief A preprocessor directive
* Each preprocessor directive (\#include, \#define, \#undef, \#if, \#ifdef, \#else, \#endif)
* will be recorded as an instance of this class.
*
* file and linenr denote the location where the directive is defined.
*
*/
struct CPPCHECKLIB Directive {
/** name of (possibly included) file where directive is defined */
std::string file;
/** line number in (possibly included) file where directive is defined */
unsigned int linenr;
/** the actual directive text */
std::string str;
struct DirectiveToken {
explicit DirectiveToken(const simplecpp::Token & _tok);
int line;
int column;
std::string tokStr;
};
std::vector<DirectiveToken> strTokens;
/** record a directive (possibly filtering src) */
Directive(const simplecpp::TokenList &tokens, const simplecpp::Location & _loc, std::string _str);
};
class CPPCHECKLIB RemarkComment {
public:
RemarkComment(std::string file, unsigned int lineNumber, std::string str)
: file(std::move(file))
, lineNumber(lineNumber)
, str(std::move(str))
{}
/** name of file */
std::string file;
/** line number for the code that the remark comment is about */
unsigned int lineNumber;
/** remark text */
std::string str;
};
/// @addtogroup Core
/// @{
/**
* @brief The cppcheck preprocessor.
* The preprocessor has special functionality for extracting the various ifdef
* configurations that exist in a source file.
*/
class CPPCHECKLIB WARN_UNUSED Preprocessor {
public:
/** character that is inserted in expanded macros */
static char macroChar;
Preprocessor(simplecpp::TokenList& tokens, const Settings& settings, ErrorLogger &errorLogger, Standards::Language lang);
void inlineSuppressions(SuppressionList &suppressions);
std::list<Directive> createDirectives() const;
std::set<std::string> getConfigs() const;
std::vector<RemarkComment> getRemarkComments() const;
bool loadFiles(std::vector<std::string> &files);
void removeComments();
void setPlatformInfo();
simplecpp::TokenList preprocess(const std::string &cfg, std::vector<std::string> &files, simplecpp::OutputList& outputList);
std::string getcode(const std::string &cfg, std::vector<std::string> &files, bool writeLocations);
/**
* Calculate HASH. Using toolinfo, tokens1, filedata.
*
* @param toolinfo Arbitrary extra toolinfo
* @return HASH
*/
std::size_t calculateHash(const std::string &toolinfo) const;
void simplifyPragmaAsm();
static void getErrorMessages(ErrorLogger &errorLogger, const Settings &settings);
/**
* dump all directives present in source file
*/
void dump(std::ostream &out) const;
const simplecpp::Output* reportOutput(const simplecpp::OutputList &outputList, bool showerror);
void error(const std::string &filename, unsigned int linenr, unsigned int col, const std::string &msg, simplecpp::Output::Type type);
const simplecpp::Output* handleErrors(const simplecpp::OutputList &outputList);
private:
static void simplifyPragmaAsmPrivate(simplecpp::TokenList &tokenList);
/**
* Include file types.
*/
enum HeaderTypes : std::uint8_t {
UserHeader = 1,
SystemHeader
};
void missingInclude(const std::string &filename, unsigned int linenr, unsigned int col, const std::string &header, HeaderTypes headerType);
void invalidSuppression(const std::string &filename, unsigned int linenr, unsigned int col, const std::string &msg);
void error(const std::string &filename, unsigned int linenr, unsigned int col, const std::string &msg, const std::string& id);
void addRemarkComments(const simplecpp::TokenList &tokens, std::vector<RemarkComment> &remarkComments) const;
simplecpp::TokenList& mTokens;
const Settings& mSettings;
ErrorLogger &mErrorLogger;
/** list of all directives met while preprocessing file */
simplecpp::FileDataCache mFileCache;
/** filename for cpp/c file - useful when reporting errors */
std::string mFile0; // TODO: this is never set
Standards::Language mLang{Standards::Language::None};
/** simplecpp tracking info */
std::list<simplecpp::MacroUsage> mMacroUsage;
std::list<simplecpp::IfCond> mIfCond;
};
/// @}
//---------------------------------------------------------------------------
#endif // preprocessorH
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