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96afb12087
This converts the CMake license to a pure 3-clause OSI-approved BSD License. We drop the previous license clause requiring modified versions to be plainly marked. We also update the CMake copyright to cover the full development time range.
121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmMacroCommand_h
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#define cmMacroCommand_h
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#include "cmCommand.h"
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#include "cmFunctionBlocker.h"
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/** \class cmMacroFunctionBlocker
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* \brief subclass of function blocker
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*
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*
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*/
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class cmMacroFunctionBlocker : public cmFunctionBlocker
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{
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public:
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cmMacroFunctionBlocker() {this->Depth=0;}
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virtual ~cmMacroFunctionBlocker() {}
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virtual bool IsFunctionBlocked(const cmListFileFunction&,
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cmMakefile &mf,
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cmExecutionStatus &);
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virtual bool ShouldRemove(const cmListFileFunction&, cmMakefile &mf);
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std::vector<std::string> Args;
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std::vector<cmListFileFunction> Functions;
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int Depth;
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};
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/** \class cmMacroCommand
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* \brief starts an if block
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*
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* cmMacroCommand starts an if block
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*/
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class cmMacroCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmMacroCommand;
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}
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &status);
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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() { return true; }
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName() { return "macro";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "Start recording a macro for later invocation as a command.";
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}
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/**
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* More documentation.
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*/
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virtual const char* GetFullDocumentation()
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{
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return
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" macro(<name> [arg1 [arg2 [arg3 ...]]])\n"
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" COMMAND1(ARGS ...)\n"
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" COMMAND2(ARGS ...)\n"
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" ...\n"
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" endmacro(<name>)\n"
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"Define a macro named <name> that takes arguments named "
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"arg1 arg2 arg3 (...). Commands listed after macro, "
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"but before the matching endmacro, are not invoked until the macro "
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"is invoked. When it is invoked, the commands recorded in the "
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"macro are first modified by replacing formal parameters (${arg1}) "
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"with the arguments passed, and then invoked as normal commands. In "
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"addition to referencing the formal parameters you can reference "
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"the values ${ARGC} which will be set to the number of arguments "
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"passed into the function as well as ${ARGV0} ${ARGV1} ${ARGV2} "
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"... which "
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"will have the actual values of the arguments passed in. This "
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"facilitates creating macros with optional arguments. Additionally "
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"${ARGV} holds the list of all arguments given to the macro and "
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"${ARGN} "
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"holds the list of argument past the last expected argument. "
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"Note that the parameters to a macro and values such as ARGN "
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"are not variables in the usual CMake sense. They are string "
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"replacements much like the c preprocessor would do with a "
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"macro. If you want true CMake variables you should look at "
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"the function command."
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"\n"
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"See the cmake_policy() command documentation for the behavior of "
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"policies inside macros."
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;
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}
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cmTypeMacro(cmMacroCommand, cmCommand);
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};
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#endif
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