123 lines
3.8 KiB
C++
123 lines
3.8 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 cmMacroCommand_h
|
|
#define cmMacroCommand_h
|
|
|
|
#include "cmCommand.h"
|
|
#include "cmFunctionBlocker.h"
|
|
|
|
/** \class cmMacroFunctionBlocker
|
|
* \brief subclass of function blocker
|
|
*
|
|
*
|
|
*/
|
|
class cmMacroFunctionBlocker : public cmFunctionBlocker
|
|
{
|
|
public:
|
|
cmMacroFunctionBlocker() {this->Depth=0;}
|
|
virtual ~cmMacroFunctionBlocker() {}
|
|
virtual bool IsFunctionBlocked(const cmListFileFunction&,
|
|
cmMakefile &mf,
|
|
cmExecutionStatus &);
|
|
virtual bool ShouldRemove(const cmListFileFunction&, cmMakefile &mf);
|
|
virtual void ScopeEnded(cmMakefile &mf);
|
|
|
|
std::vector<std::string> Args;
|
|
std::vector<cmListFileFunction> Functions;
|
|
int Depth;
|
|
};
|
|
|
|
/** \class cmMacroCommand
|
|
* \brief starts an if block
|
|
*
|
|
* cmMacroCommand starts an if block
|
|
*/
|
|
class cmMacroCommand : public cmCommand
|
|
{
|
|
public:
|
|
/**
|
|
* This is a virtual constructor for the command.
|
|
*/
|
|
virtual cmCommand* Clone()
|
|
{
|
|
return new cmMacroCommand;
|
|
}
|
|
|
|
/**
|
|
* This is called when the command is first encountered in
|
|
* the CMakeLists.txt file.
|
|
*/
|
|
virtual bool InitialPass(std::vector<std::string> const& args,
|
|
cmExecutionStatus &status);
|
|
|
|
/**
|
|
* 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 "macro";}
|
|
|
|
/**
|
|
* Succinct documentation.
|
|
*/
|
|
virtual const char* GetTerseDocumentation()
|
|
{
|
|
return "Start recording a macro for later invocation as a command.";
|
|
}
|
|
|
|
/**
|
|
* More documentation.
|
|
*/
|
|
virtual const char* GetFullDocumentation()
|
|
{
|
|
return
|
|
" macro(<name> [arg1 [arg2 [arg3 ...]]])\n"
|
|
" COMMAND1(ARGS ...)\n"
|
|
" COMMAND2(ARGS ...)\n"
|
|
" ...\n"
|
|
" endmacro(<name>)\n"
|
|
"Define a macro named <name> that takes arguments named "
|
|
"arg1 arg2 arg3 (...). Commands listed after macro, "
|
|
"but before the matching endmacro, are not invoked until the macro "
|
|
"is invoked. When it is invoked, the commands recorded in the "
|
|
"macro are first modified by replacing formal parameters (${arg1}) "
|
|
"with the arguments passed, and then invoked as normal commands. In "
|
|
"addition to referencing the formal parameters you can reference "
|
|
"the values ${ARGC} which will be set to the number of arguments "
|
|
"passed into the function as well as ${ARGV0} ${ARGV1} ${ARGV2} "
|
|
"... which "
|
|
"will have the actual values of the arguments passed in. This "
|
|
"facilitates creating macros with optional arguments. Additionally "
|
|
"${ARGV} holds the list of all arguments given to the macro and "
|
|
"${ARGN} "
|
|
"holds the list of argument pass the last expected argument. "
|
|
"Note that the parameters to a macro and values such as ARGN "
|
|
"are not variables in the usual CMake sense. They are string "
|
|
"replacements much like the c preprocessor would do with a "
|
|
"macro. If you want true CMake variables you should look at "
|
|
"the function command.";
|
|
}
|
|
|
|
cmTypeMacro(cmMacroCommand, cmCommand);
|
|
};
|
|
|
|
|
|
#endif
|