I have some functions that take other functions. I would like the
attributes to be able to "fall" through so I get overload like
behavior. I only care that I am passing a function, not if it is
shared, extern(C), pure, @nogc, etc.
void foo(R, A...)(R function(A) bar)
{
alias type = typeof(bar);
pragma(msg, type);
// does magic with bar
}
foo never uses the attributes of bar explicitly. It uses type to
instantiate other functions like bar. I have to create a foo for
each attribute combination, which is not worth while. The code
seems to break only for extern, the best I can tell, most
attributes do pass through. But type does not contain these
attributes.
