220 lines
7.9 KiB
C++
220 lines
7.9 KiB
C++
/*
|
|
* Cppcheck - A tool for static C/C++ code analysis
|
|
* Copyright (C) 2007-2022 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 <atomic>
|
|
#include <simplecpp.h>
|
|
#include <istream>
|
|
#include <list>
|
|
#include <map>
|
|
#include <set>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
class ErrorLogger;
|
|
class Settings;
|
|
|
|
/**
|
|
* @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 where the directive is defined.
|
|
*
|
|
*/
|
|
|
|
class CPPCHECKLIB Directive {
|
|
public:
|
|
/** 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;
|
|
|
|
/** record a directive (possibly filtering src) */
|
|
Directive(const std::string &_file, const int _linenr, const 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 Preprocessor {
|
|
public:
|
|
|
|
/**
|
|
* Include file types.
|
|
*/
|
|
enum HeaderTypes {
|
|
NoHeader = 0,
|
|
UserHeader,
|
|
SystemHeader
|
|
};
|
|
|
|
/** character that is inserted in expanded macros */
|
|
static char macroChar;
|
|
|
|
explicit Preprocessor(Settings& settings, ErrorLogger *errorLogger = nullptr);
|
|
virtual ~Preprocessor();
|
|
|
|
static std::atomic<bool> missingIncludeFlag;
|
|
static std::atomic<bool> missingSystemIncludeFlag;
|
|
|
|
void inlineSuppressions(const simplecpp::TokenList &tokens);
|
|
|
|
void setDirectives(const simplecpp::TokenList &tokens);
|
|
void setDirectives(const std::list<Directive> &directives) {
|
|
mDirectives = directives;
|
|
}
|
|
|
|
/** list of all directives met while preprocessing file */
|
|
const std::list<Directive> &getDirectives() const {
|
|
return mDirectives;
|
|
}
|
|
|
|
std::set<std::string> getConfigs(const simplecpp::TokenList &tokens) const;
|
|
|
|
void handleErrors(const simplecpp::OutputList &outputList, bool throwError);
|
|
|
|
bool loadFiles(const simplecpp::TokenList &rawtokens, std::vector<std::string> &files);
|
|
|
|
void removeComments();
|
|
|
|
void setPlatformInfo(simplecpp::TokenList *tokens) const;
|
|
|
|
/**
|
|
* Extract the code for each configuration
|
|
* @param istr The (file/string) stream to read from.
|
|
* @param result The map that will get the results
|
|
* @param filename The name of the file to check e.g. "src/main.cpp"
|
|
* @param includePaths List of paths where include files should be searched from,
|
|
* single path can be e.g. in format "include/".
|
|
* There must be a path separator at the end. Default parameter is empty list.
|
|
* Note that if path from given filename is also extracted and that is used as
|
|
* a last include path if include file was not found from earlier paths.
|
|
*/
|
|
void preprocess(std::istream &istr, std::map<std::string, std::string> &result, const std::string &filename, const std::list<std::string> &includePaths = std::list<std::string>());
|
|
|
|
/**
|
|
* Extract the code for each configuration. Use this with getcode() to get the
|
|
* file data for each individual configuration.
|
|
*
|
|
* @param srcCodeStream The (file/string) stream to read from.
|
|
* @param processedFile Give reference to empty string as a parameter,
|
|
* function will fill processed file here. Use this also as a filedata parameter
|
|
* to getcode() if you received more than once configurations.
|
|
* @param resultConfigurations List of configurations. Pass these one by one
|
|
* to getcode() with processedFile.
|
|
* @param filename The name of the file to check e.g. "src/main.cpp"
|
|
* @param includePaths List of paths where include files should be searched from,
|
|
* single path can be e.g. in format "include/".
|
|
* There must be a path separator at the end. Default parameter is empty list.
|
|
* Note that if path from given filename is also extracted and that is used as
|
|
* a last include path if include file was not found from earlier paths.
|
|
*/
|
|
void preprocess(std::istream &srcCodeStream, std::string &processedFile, std::list<std::string> &resultConfigurations, const std::string &filename, const std::list<std::string> &includePaths);
|
|
|
|
simplecpp::TokenList preprocess(const simplecpp::TokenList &tokens1, const std::string &cfg, std::vector<std::string> &files, bool throwError = false);
|
|
|
|
std::string getcode(const simplecpp::TokenList &tokens1, const std::string &cfg, std::vector<std::string> &files, const bool writeLocations);
|
|
|
|
/**
|
|
* Get preprocessed code for a given configuration
|
|
* @param filedata file data including preprocessing 'if', 'define', etc
|
|
* @param cfg configuration to read out
|
|
* @param filename name of source file
|
|
*/
|
|
std::string getcode(const std::string &filedata, const std::string &cfg, const std::string &filename);
|
|
|
|
/**
|
|
* make sure empty configuration macros are not used in code. the given code must be a single configuration
|
|
* @param cfg configuration
|
|
* @param macroUsageList macro usage list
|
|
* @return true => configuration is valid
|
|
*/
|
|
bool validateCfg(const std::string &cfg, const std::list<simplecpp::MacroUsage> ¯oUsageList);
|
|
void validateCfgError(const std::string &file, const unsigned int line, const std::string &cfg, const std::string ¯o);
|
|
|
|
/**
|
|
* Calculate CRC32 checksum. Using toolinfo, tokens1, filedata.
|
|
*
|
|
* @param tokens1 Sourcefile tokens
|
|
* @param toolinfo Arbitrary extra toolinfo
|
|
* @return CRC32 checksum
|
|
*/
|
|
unsigned int calculateChecksum(const simplecpp::TokenList &tokens1, const std::string &toolinfo) const;
|
|
|
|
void simplifyPragmaAsm(simplecpp::TokenList *tokenList) const;
|
|
|
|
private:
|
|
|
|
static void simplifyPragmaAsmPrivate(simplecpp::TokenList *tokenList);
|
|
|
|
public:
|
|
|
|
|
|
static void getErrorMessages(ErrorLogger *errorLogger, const Settings *settings);
|
|
|
|
void setFile0(const std::string &f) {
|
|
mFile0 = f;
|
|
}
|
|
|
|
/**
|
|
* dump all directives present in source file
|
|
*/
|
|
void dump(std::ostream &out) const;
|
|
|
|
void reportOutput(const simplecpp::OutputList &outputList, bool showerror);
|
|
|
|
private:
|
|
void missingInclude(const std::string &filename, unsigned int linenr, const std::string &header, HeaderTypes headerType);
|
|
void error(const std::string &filename, unsigned int linenr, const std::string &msg);
|
|
|
|
Settings& mSettings;
|
|
ErrorLogger *mErrorLogger;
|
|
|
|
/** list of all directives met while preprocessing file */
|
|
std::list<Directive> mDirectives;
|
|
|
|
std::map<std::string, simplecpp::TokenList *> mTokenLists;
|
|
|
|
/** filename for cpp/c file - useful when reporting errors */
|
|
std::string mFile0;
|
|
|
|
/** simplecpp tracking info */
|
|
std::list<simplecpp::MacroUsage> mMacroUsage;
|
|
std::list<simplecpp::IfCond> mIfCond;
|
|
};
|
|
|
|
/// @}
|
|
//---------------------------------------------------------------------------
|
|
#endif // preprocessorH
|