I would like to dynamically construct a macro or function name to
invoke. I basically have a core CMake system I want users to be able
to extend/plug stuff into without knowing about a lot of the core
CMake implementation. Callback functions would be an easy way for me
to accomplish this.
As an example,
# In my core code, I have a macro designed to callback other macros
macro(DO_PACKAGE _TARGET_NAME)
foreach(callback ${DO_PACKAGE_CALLBACK_LIST})
DO_PACKAGE_FOR_${callback}(${_TARGET_NAME})
endforeach()
endmacro(BLURRR_PACKAGE_EXTRAS)
### Also in my core code, I pick an appropriate time to trigger my
macro to call user callbacks
DERIVE_SOME_NAME()
ADD_EXECUTABLE(${SOME_NAME} ...)
DO_PACKAGE(${SOME_NAME})
# So in user modules provided by others, they follow a convention where
# they define a macro DO_PACKAGE_ appended by their module name.
macro(DO_PACKAGE_FOR_MYMODULE _TARGET_NAME)
MESSAGE("in mymod callback")
# do stuff
endmacro()
# And I make them add their module name to a global list so I can call
it back at the right time
list(APPEND DO_PACKAGE_CALLBACK_LIST "MYMODULE")
So in my attempts to do this, I'm getting errors like:
Parse error. Expected a command name, got unquoted argument with text
Is there way to do this (or something similar)?
Thanks,
Eric
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