diff options
Diffstat (limited to 'Source/cmMacroCommand.h')
-rw-r--r-- | Source/cmMacroCommand.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/Source/cmMacroCommand.h b/Source/cmMacroCommand.h new file mode 100644 index 000000000..36e4b2f6b --- /dev/null +++ b/Source/cmMacroCommand.h @@ -0,0 +1,110 @@ +/*============================================================================ + CMake - Cross Platform Makefile Generator + Copyright 2000-2009 Kitware, Inc., Insight Software Consortium + + Distributed under the OSI-approved BSD License (the "License"); + see accompanying file Copyright.txt for details. + + This software is distributed WITHOUT ANY WARRANTY; without even the + implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + See the License for more information. +============================================================================*/ +#ifndef cmMacroCommand_h +#define cmMacroCommand_h + +#include "cmCommand.h" +#include "cmFunctionBlocker.h" + +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); + + std::vector<std::string> Args; + std::vector<cmListFileFunction> Functions; + int Depth; +}; + +/// Starts macro() ... endmacro() 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() const { return true; } + + /** + * The name of the command as specified in CMakeList.txt. + */ + virtual const char* GetName() const { return "macro";} + + /** + * Succinct documentation. + */ + virtual const char* GetTerseDocumentation() const + { + return "Start recording a macro for later invocation as a command."; + } + + /** + * More documentation. + */ + virtual const char* GetFullDocumentation() const + { + 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 past 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." + "\n" + "See the cmake_policy() command documentation for the behavior of " + "policies inside macros." + ; + } + cmTypeMacro(cmMacroCommand, cmCommand); +}; + + +#endif |