122 lines
3.5 KiB
C++
122 lines
3.5 KiB
C++
/*=========================================================================
|
|
|
|
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 cmIfCommand_h
|
|
#define cmIfCommand_h
|
|
|
|
#include "cmStandardIncludes.h"
|
|
#include "cmCommand.h"
|
|
#include "cmFunctionBlocker.h"
|
|
|
|
/** \class cmIfFunctionBlocker
|
|
* \brief subclass of function blocker
|
|
*
|
|
*
|
|
*/
|
|
class cmIfFunctionBlocker : public cmFunctionBlocker
|
|
{
|
|
public:
|
|
cmIfFunctionBlocker() {}
|
|
virtual ~cmIfFunctionBlocker() {}
|
|
virtual bool IsFunctionBlocked(const cmListFileFunction& lff,
|
|
cmMakefile &mf);
|
|
virtual bool ShouldRemove(const cmListFileFunction& lff,
|
|
cmMakefile &mf);
|
|
virtual void ScopeEnded(cmMakefile &mf);
|
|
|
|
std::vector<cmListFileArgument> m_Args;
|
|
bool m_IsBlocking;
|
|
};
|
|
|
|
/** \class cmIfCommand
|
|
* \brief starts an if block
|
|
*
|
|
* cmIfCommand starts an if block
|
|
*/
|
|
class cmIfCommand : public cmCommand
|
|
{
|
|
public:
|
|
/**
|
|
* This is a virtual constructor for the command.
|
|
*/
|
|
virtual cmCommand* Clone()
|
|
{
|
|
return new cmIfCommand;
|
|
}
|
|
|
|
/**
|
|
* 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& args) { return false; }
|
|
|
|
/**
|
|
* The name of the command as specified in CMakeList.txt.
|
|
*/
|
|
virtual const char* GetName() { return "IF";}
|
|
|
|
/**
|
|
* Succinct documentation.
|
|
*/
|
|
virtual const char* GetTerseDocumentation()
|
|
{
|
|
return "start an if block";
|
|
}
|
|
|
|
/**
|
|
* This determines if the command gets propagated down
|
|
* to makefiles located in subdirectories.
|
|
*/
|
|
virtual bool IsInherited() {return true;}
|
|
|
|
/**
|
|
* More documentation.
|
|
*/
|
|
virtual const char* GetFullDocumentation()
|
|
{
|
|
return
|
|
"IF (define) Starts an if block. Optionally it can be invoked "
|
|
"using (NOT define) (def AND def2) (def OR def2) (def MATCHES def2) "
|
|
"(COMMAND cmd) (EXISTS file) MATCHES checks if def matches the "
|
|
"regular expression def2. COMMAND checks if the cmake command cmd "
|
|
"is in this cmake executable. EXISTS file checks if file exists."
|
|
"Additionally you can do comparisons using LESS GREATER STRLESS "
|
|
"and STRGREATER. LESS and GREATER do numeric comparison while "
|
|
"STRLESS and STRGREATER do string comparisons.";
|
|
}
|
|
|
|
// this is a shared function for both If and Else to determine if
|
|
// the arguments were valid, and if so, was the response true
|
|
static bool IsTrue(const std::vector<std::string> &args,
|
|
bool &isValid, const cmMakefile *mf);
|
|
|
|
// Get a definition from the makefile. If it doesn't exist,
|
|
// return the original string.
|
|
static const char* GetVariableOrString(const char* str,
|
|
const cmMakefile* mf);
|
|
|
|
cmTypeMacro(cmIfCommand, cmCommand);
|
|
};
|
|
|
|
|
|
#endif
|