On 07/19/2016 08:55 AM, Rufus Smith wrote:
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.
functionAttributes may be useful. SetFunctionAttributes has an example: https://dlang.org/phobos/std_traits.html#SetFunctionAttributes Ali
