another cool RTInfo trick - i want in runtime

[Adam D. Ruppe]

On Thursday, 16 January 2014 at 20:16:59 UTC, Marco Leise wrote:
> It looks like
> stuff that could only be done with compiler extensions or AST
> manipulations and yet it works with a simple template.

Yeah, though remember that it can't actually manipulate the type, 
it just looks and can build up other data or issue errors, but 
not change the code it is looking at.