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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef cmDependsC_h
#define cmDependsC_h
#include "cmDepends.h"
#include <cmsys/RegularExpression.hxx>
#include <queue>
/** \class cmDependsC
* \brief Dependency scanner for C and C++ object files.
*/
class cmDependsC: public cmDepends
{
public:
/** Checking instances need to know the build directory name and the
relative path from the build directory to the target file. */
cmDependsC();
cmDependsC(std::vector<std::string> const& includes,
const char* scanRegex, const char* complainRegex,
std::set<cmStdString> const& generatedFiles, const cmStdString& cachFileName);
/** Virtual destructor to cleanup subclasses properly. */
virtual ~cmDependsC();
protected:
typedef std::vector<char> t_CharBuffer;
// Implement writing/checking methods required by superclass.
virtual bool WriteDependencies(const char *src,
const char *file,
std::ostream& makeDepends,
std::ostream& internalDepends);
// Method to scan a single file.
void Scan(std::istream& is, const char* directory, const cmStdString& fullName);
// Method to test for the existence of a file.
bool FileExistsOrIsGenerated(const std::string& fname,
std::set<cmStdString>& scanned,
std::set<cmStdString>& dependencies);
// The include file search path.
std::vector<std::string> const* m_IncludePath;
// Regular expression to identify C preprocessor include directives.
cmsys::RegularExpression m_IncludeRegexLine;
// Regular expressions to choose which include files to scan
// recursively and which to complain about not finding.
cmsys::RegularExpression m_IncludeRegexScan;
cmsys::RegularExpression m_IncludeRegexComplain;
// Set of generated files available.
std::set<cmStdString> const* m_GeneratedFiles;
public:
// Data structures for dependency graph walk.
struct UnscannedEntry
{
cmStdString FileName;
cmStdString QuotedLocation;
};
struct cmIncludeLines
{
cmIncludeLines(): m_Used(false) {}
std::vector<UnscannedEntry> m_UnscannedEntries;
bool m_Used;
};
protected:
std::set<cmStdString> m_Encountered;
std::queue<UnscannedEntry> m_Unscanned;
t_CharBuffer m_Buffer;
std::map<cmStdString, cmIncludeLines *> m_fileCache;
cmStdString m_cacheFileName;
void WriteCacheFile() const;
void ReadCacheFile();
private:
cmDependsC(cmDependsC const&); // Purposely not implemented.
void operator=(cmDependsC const&); // Purposely not implemented.
};
#endif
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