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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 cmWhileCommand_h
#define cmWhileCommand_h
#include "cmCommand.h"
#include "cmFunctionBlocker.h"
#include "cmListFileCache.h"
/** \class cmWhileFunctionBlocker
* \brief subclass of function blocker
*
*
*/
class cmWhileFunctionBlocker : public cmFunctionBlocker
{
public:
cmWhileFunctionBlocker() {Executing = false; Depth=0;}
virtual ~cmWhileFunctionBlocker() {}
virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
cmMakefile &mf);
virtual bool ShouldRemove(const cmListFileFunction& lff, cmMakefile &mf);
virtual void ScopeEnded(cmMakefile &mf);
std::vector<cmListFileArgument> Args;
std::vector<cmListFileFunction> Functions;
bool Executing;
private:
int Depth;
};
/** \class cmWhileCommand
* \brief starts a while loop
*
* cmWhileCommand starts a while loop
*/
class cmWhileCommand : public cmCommand
{
public:
/**
* This is a virtual constructor for the command.
*/
virtual cmCommand* Clone()
{
return new cmWhileCommand;
}
/**
* This overrides the default InvokeInitialPass implementation.
* It records the arguments before expansion.
*/
virtual bool InvokeInitialPass(const std::vector<cmListFileArgument>& args);
/**
* This is called when the command is first encountered in
* the CMakeLists.txt file.
*/
virtual bool InitialPass(std::vector<std::string> const&) { return false; }
/**
* This determines if the command is invoked when in script mode.
*/
virtual bool IsScriptable() { return true; }
/**
* The name of the command as specified in CMakeList.txt.
*/
virtual const char* GetName() { return "while";}
/**
* Succinct documentation.
*/
virtual const char* GetTerseDocumentation()
{
return "Evaluate a group of commands while a condition is true";
}
/**
* More documentation.
*/
virtual const char* GetFullDocumentation()
{
return
" while(condition)\n"
" COMMAND1(ARGS ...)\n"
" COMMAND2(ARGS ...)\n"
" ...\n"
" endwhile(condition)\n"
"All commands between while and the matching endwhile are recorded "
"without being invoked. Once the endwhile is evaluated, the "
"recorded list of commands is invoked as long as the condition "
"is true. The condition is evaluated using the same logic as the "
"if command.";
}
cmTypeMacro(cmWhileCommand, cmCommand);
};
#endif
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