[swift-evolution] the "guard" keyword, again

[Sean Heber]

> In the Commonly Rejected Changes page and in this swift-evolution email to which it refers, I read that first there was “unless", then “require” then finally “guard ... else”.
> 
> I couldn’t find the earlier discussion in which “unless” was replaced for a while by “require”, so I am moved to ask, “Was there ever “require … else”, or was it just “require”? I’ll assume it was just “require”.

FYI the decisions and discussions that lead to “guard" occurred within Apple well before Swift was open sourced.

l8r
Sean