364 lines
11 KiB
C++
364 lines
11 KiB
C++
/*=========================================================================
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Program: Insight Segmentation & Registration Toolkit
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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 Insight Consortium. All rights reserved.
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See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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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#include "cmVTKMakeInstantiatorCommand.h"
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#include "cmCacheManager.h"
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#include "cmGeneratedFileStream.h"
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bool
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cmVTKMakeInstantiatorCommand
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::InitialPass(std::vector<std::string> const& argsIn)
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{
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if(argsIn.size() < 3)
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{
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this->SetError("called with incorrect number of arguments");
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return false;
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}
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std::vector<std::string> args;
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cmSystemTools::ExpandListArguments(argsIn, args);
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m_ClassName = args[0];
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std::string outSourceList = args[1];
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std::vector<cmStdString> inSourceLists;
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m_ExportMacro = "-";
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unsigned int groupSize = 10;
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bool includesMode = false;
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// Find the path of the files to be generated.
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std::string filePath = m_Makefile->GetCurrentOutputDirectory();
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std::string headerPath = filePath;
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for(unsigned int i=2;i < args.size();++i)
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{
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if(args[i] == "GROUP_SIZE")
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{
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includesMode = false;
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if(++i < args.size())
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{
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groupSize = atoi(args[i].c_str());
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}
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else
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{
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this->SetError("GROUP_SIZE option used without value.");
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return false;
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}
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}
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else if(args[i] == "HEADER_LOCATION")
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{
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includesMode = false;
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if(++i < args.size())
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{
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headerPath = args[i];
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}
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else
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{
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this->SetError("HEADER_LOCATION option used without value.");
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return false;
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}
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}
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else if(args[i] == "EXPORT_MACRO")
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{
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includesMode = false;
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if(++i < args.size())
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{
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m_ExportMacro = args[i];
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}
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else
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{
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this->SetError("EXPORT_MACRO option used without value.");
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return false;
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}
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}
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else if(args[i] == "INCLUDES")
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{
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includesMode = true;
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}
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// If not an option, it must be another input source list name or
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// an include file.
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else
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{
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if(!includesMode)
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{
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inSourceLists.push_back(args[i]);
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}
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else
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{
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m_Includes.push_back(args[i]);
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}
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}
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}
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if(m_ExportMacro == "-")
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{
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this->SetError("No EXPORT_MACRO option given.");
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return false;
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}
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for(std::vector<cmStdString>::const_iterator s = inSourceLists.begin();
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s != inSourceLists.end(); ++s)
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{
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// Find the source list specified.
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cmMakefile::SourceMap::iterator srcListIter =
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m_Makefile->GetSources().find(*s);
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if(srcListIter == m_Makefile->GetSources().end())
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{
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std::string errStr = "No source list named " + *s;
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this->SetError(errStr.c_str());
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return false;
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}
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std::vector<cmSourceFile*>& srcList = srcListIter->second;
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// Collect the names of the classes.
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for(std::vector<cmSourceFile*>::iterator src = srcList.begin();
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src != srcList.end();++src)
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{
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// Wrap-excluded and abstract classes do not have a New() method.
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// vtkIndent and vtkTimeStamp are special cases and are not
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// vtkObject subclasses.
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if(!(*src)->GetWrapExclude() && !(*src)->GetIsAnAbstractClass()
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&& ((*src)->GetSourceName() != "vtkIndent")
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&& ((*src)->GetSourceName() != "vtkTimeStamp"))
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{
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m_Classes.push_back((*src)->GetSourceName());
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}
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}
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}
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// Generate the header with the class declaration.
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{
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std::string fileName = m_ClassName + ".h";
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std::string fullName = headerPath+"/"+fileName;
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// Generate the output file with copy-if-different.
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cmGeneratedFileStream fout(fullName.c_str());
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// Actually generate the code in the file.
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this->GenerateHeaderFile(fout.GetStream());
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}
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// Generate the implementation file.
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{
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std::string fileName = m_ClassName + ".cxx";
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std::string fullName = filePath+"/"+fileName;
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// Generate the output file with copy-if-different.
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{
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cmGeneratedFileStream fout(fullName.c_str());
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// Actually generate the code in the file.
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this->GenerateImplementationFile(fout.GetStream());
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}
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// Add the generated source file into the source list.
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cmSourceFile file;
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file.SetWrapExclude(true);
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file.SetIsAnAbstractClass(false);
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file.SetName(fileName.c_str(), filePath.c_str(),
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m_Makefile->GetSourceExtensions(),
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m_Makefile->GetHeaderExtensions());
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m_Makefile->AddSource(file, outSourceList.c_str());
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}
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size_t numClasses = m_Classes.size();
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size_t numFullBlocks = numClasses / groupSize;
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size_t lastBlockSize = numClasses % groupSize;
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size_t numBlocks = numFullBlocks + ((lastBlockSize>0)? 1:0);
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// Generate the files with the ::New() calls to each class. These
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// are done in groups to keep the translation unit size smaller.
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for(unsigned int block=0; block < numBlocks;++block)
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{
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std::string fileName = this->GenerateCreationFileName(block);
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std::string fullName = filePath+"/"+fileName;
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// Generate the output file with copy-if-different.
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{
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cmGeneratedFileStream fout(fullName.c_str());
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unsigned int thisBlockSize =
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(block < numFullBlocks)? groupSize:lastBlockSize;
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// Actually generate the code in the file.
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this->GenerateCreationFile(fout.GetStream(),
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block*groupSize, thisBlockSize);
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}
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// Add the generated source file into the source list.
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cmSourceFile file;
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file.SetWrapExclude(true);
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file.SetIsAnAbstractClass(false);
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file.SetName(fileName.c_str(), filePath.c_str(),
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m_Makefile->GetSourceExtensions(),
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m_Makefile->GetHeaderExtensions());
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m_Makefile->AddSource(file, outSourceList.c_str());
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}
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return true;
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}
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std::string
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cmVTKMakeInstantiatorCommand::GenerateCreationFileName(unsigned int block)
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{
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cmStringStream nameStr;
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nameStr << m_ClassName.c_str() << block << ".cxx";
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std::string result = nameStr.str();
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return result;
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}
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// Generates the class header file with the definition of the class
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// and its initializer class.
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void
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cmVTKMakeInstantiatorCommand
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::GenerateHeaderFile(std::ostream& os)
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{
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os <<
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"#ifndef __" << m_ClassName.c_str() << "_h\n"
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"#define __" << m_ClassName.c_str() << "_h\n"
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"\n"
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"#include \"vtkInstantiator.h\"\n";
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for(unsigned int i=0;i < m_Includes.size();++i)
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{
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os << "#include \"" << m_Includes[i].c_str() << "\"\n";
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}
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os <<
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"\n"
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"class " << m_ClassName.c_str() << "Initialize;\n"
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"\n"
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"class " << m_ExportMacro.c_str() << " " << m_ClassName.c_str() << "\n"
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"{\n"
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" friend class " << m_ClassName.c_str() << "Initialize;\n"
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"\n"
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" static void ClassInitialize();\n"
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" static void ClassFinalize();\n"
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"\n";
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for(unsigned int i=0;i < m_Classes.size();++i)
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{
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os << " static vtkObject* Create_" << m_Classes[i].c_str() << "();\n";
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}
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// Write the initializer class to make sure the creation functions
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// get registered when this generated header is included.
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os <<
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"};\n"
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"\n"
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"class " << m_ExportMacro.c_str() << " " << m_ClassName.c_str() << "Initialize\n"
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"{\n"
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"public:\n"
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" " << m_ClassName.c_str() << "Initialize();\n"
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" ~" << m_ClassName.c_str() << "Initialize();\n"
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"private:\n"
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" static unsigned int Count;\n"
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"};\n"
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"\n"
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"static " << m_ClassName.c_str() << "Initialize " << m_ClassName.c_str() << "Initializer;\n"
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"\n"
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"#endif\n";
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}
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// Generates the file with the implementation of the class. All
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// methods except the actual object creation functions are generated
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// here.
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void
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cmVTKMakeInstantiatorCommand
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::GenerateImplementationFile(std::ostream& os)
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{
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// Write the ClassInitialize method to register all the creation functions.
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os <<
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"#include \"" << m_ClassName.c_str() << ".h\"\n"
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"\n"
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"void " << m_ClassName.c_str() << "::ClassInitialize()\n"
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"{\n";
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for(unsigned int i=0;i < m_Classes.size();++i)
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{
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os << " vtkInstantiator::RegisterInstantiator(\""
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<< m_Classes[i].c_str() << "\", " << m_ClassName.c_str() << "::Create_"
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<< m_Classes[i].c_str() << ");\n";
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}
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// Write the ClassFinalize method to unregister all the creation functions.
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os <<
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"}\n"
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"\n"
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"void " << m_ClassName.c_str() << "::ClassFinalize()\n"
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"{\n";
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for(unsigned int i=0;i < m_Classes.size();++i)
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{
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os << " vtkInstantiator::UnRegisterInstantiator(\""
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<< m_Classes[i].c_str() << "\", " << m_ClassName.c_str() << "::Create_"
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<< m_Classes[i].c_str() << ");\n";
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}
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// Write the constructor and destructor of the initializer class to
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// call the ClassInitialize and ClassFinalize methods at the right
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// time.
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os <<
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"}\n"
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"\n" <<
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m_ClassName.c_str() << "Initialize::" << m_ClassName.c_str() << "Initialize()\n"
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"{\n"
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" if(++" << m_ClassName.c_str() << "Initialize::Count == 1)\n"
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" { " << m_ClassName.c_str() << "::ClassInitialize(); }\n"
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"}\n"
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"\n" <<
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m_ClassName.c_str() << "Initialize::~" << m_ClassName.c_str() << "Initialize()\n"
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"{\n"
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" if(--" << m_ClassName.c_str() << "Initialize::Count == 0)\n"
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" { " << m_ClassName.c_str() << "::ClassFinalize(); }\n"
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"}\n"
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"\n"
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"// Number of translation units that include this class's header.\n"
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"// Purposely not initialized. Default is static initialization to 0.\n"
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"unsigned int " << m_ClassName.c_str() << "Initialize::Count;\n";
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}
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// Generates a file that includes the headers of the classes it knows
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// how to create and provides functions which create the classes with
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// the New() method.
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void
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cmVTKMakeInstantiatorCommand
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::GenerateCreationFile(std::ostream& os, unsigned int groupStart,
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unsigned int groupSize)
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{
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// Need to include header of generated class.
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os <<
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"#include \"" << m_ClassName.c_str() << ".h\"\n"
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"\n";
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// Include class files.
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for(unsigned int i=0;i < groupSize;++i)
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{
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os << "#include \"" << m_Classes[groupStart+i].c_str() << ".h\"\n";
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}
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os <<
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"\n";
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// Write the create function implementations.
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for(unsigned int i=0;i < groupSize;++i)
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{
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os << "vtkObject* " << m_ClassName.c_str() << "::Create_"
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<< m_Classes[groupStart+i].c_str() << "() { return "
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<< m_Classes[groupStart+i].c_str() << "::New(); }\n";
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}
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}
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