It seems pure ain't so pure after all

[Tommi]

On Monday, 1 October 2012 at 21:35:16 UTC, Jonathan M Davis wrote:
> The question is whether it's worth adding such an attribute to
> the language, and clearly, most of us think that explicitly
> using enum suffices whereas Tommi wants such a function
> attribute.

You'd get simpler syntax at the cost of just one lousy new 
keyword. It's a once in a life time deal! Any takers?