On Thursday, 13 October 2016 at 20:52:09 UTC, Patric Dexheimer
So for now my idea is to brute force the numbers of arguments
with 'compiles' trait or trying to get the sourcecode somehow.
depending on source code form (even if you can get it) is highly
error-prone. consider it UB.
also, i think that you'd better not guess, but ask the user to
explicitly instantiate the methods with `alias` -- this way you
have to write less hacky code, and the user will have more
control over what is bound. you may provide helper mixin
templates to instantiate n-ary functions with given set of types
too. this is slightly more work on the user side, but it doesn't
depend on hacks and undocumented things.