ReturnType and Parameters of Templated function/method

[Patric Dexheimer via Digitalmars-d-learn]

On Thursday, 13 October 2016 at 21:07:17 UTC, ketmar wrote:
> On Thursday, 13 October 2016 at 20:52:09 UTC, Patric Dexheimer 
> wrote:
>> 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.

Yes, but i like the idea of "automagically" bind everything with 
little user effort.
Sometimes you have a lot of code to expose to lua (and templated 
code as well with lots of templated argument combinations), so I 
think is nice to have some automated work on this.

But you are right about the "highly error-prone" part.
I´ll try to avoid that path :)