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112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef cmListFileCache_h
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#define cmListFileCache_h
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#include "cmStandardIncludes.h"
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/** \class cmListFileCache
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* \brief A class to cache list file contents.
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*
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* cmListFileCache is a class used to cache the contents of parsed
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* cmake list files.
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*/
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struct cmListFileArgument
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{
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cmListFileArgument(): Value(), Quoted(false) {}
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cmListFileArgument(const cmListFileArgument& r): Value(r.Value), Quoted(r.Quoted) {}
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cmListFileArgument(const std::string& v, bool q): Value(v), Quoted(q) {}
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bool operator == (const cmListFileArgument& r) const
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{
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return (this->Value == r.Value) && (this->Quoted == r.Quoted);
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}
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bool operator != (const cmListFileArgument& r) const
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{
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return !(*this == r);
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}
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std::string Value;
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bool Quoted;
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};
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struct cmListFileFunction
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{
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std::string m_Name;
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std::vector<cmListFileArgument> m_Arguments;
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std::string m_FilePath;
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long m_Line;
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};
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struct cmListFile
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{
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cmListFile()
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:m_ModifiedTime(0)
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{
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}
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long int m_ModifiedTime;
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std::vector<cmListFileFunction> m_Functions;
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};
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class cmListFileCache
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{
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public:
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static cmListFileCache* GetInstance();
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static void ClearCache();
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/** Return the cached version of the given file.
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* If the file is not already in the cache, a cache entry
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* will be made. If there is an error loading the file,
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* NULL is returned. If requireProjectCommand is true,
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* then a PROJECT(Project) command will be added to the file
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* if it does not have a PROJECT command in it.
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*/
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cmListFile* GetFileCache(const char* path, bool requireProjectCommand);
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//! Flush cache file out of cache.
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void FlushCache(const char* path);
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/**
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* Read a CMake command (or function) from an input file. This
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* returns the name of the function and a list of its
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* arguments. The last argument is the name of the file that
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* the ifstream points to, and is used for debug info only.
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*/
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static bool ParseFunction(std::ifstream&, cmListFileFunction& function,
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const char* filename, bool& parseError,
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long& line);
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/**
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* Extract white-space separated arguments from a string.
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* Double quoted strings are accepted with spaces.
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* This is called by ParseFunction.
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*/
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static void GetArguments(std::string& line,
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std::vector<cmListFileArgument>& arguments);
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private:
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// Cache the file
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bool CacheFile(const char* path, bool requireProjectCommand);
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// private data
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typedef std::map<cmStdString, cmListFile> ListFileMap;
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ListFileMap m_ListFileCache; // file name to ListFile map
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static cmListFileCache* Instance; // singelton pointer
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};
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#endif
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