Is there a way to get the types of all template parameters?

[ketmar via Digitalmars-d-learn]

On Thu, 04 Jun 2015 13:38:18 +0000, Atila Neves wrote:

> For regular runtime parameters, there's ParameterTypeTuple. How would I
> write an equivalent template for template parameters? i.e.
> 
>      void fun(Foo foo, Bar bar)() {}
> 
>      alias types = CtParameterTypeTuple!fun; //TypeTuple!(Foo, Bar)
> 
> I've tried but my is expression kung fu was weak.

actually, you can't. uninstantiated template cannot be processed by 
anything, as it's not semanticed yet. and to semantic it, you have to 
instantiate it.
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