On May 20, 2011, at 7:43 AM, Brendan Eich wrote:
> That is simpler, but I believe I have seen code like this:
>
> L: { S1; S2; S3; } where S2 is a label-using statement, specifically a
> break from the outer block, a sugared downward goto that skips S3.
>
> Probably only in tests for labels!
>
> Yes, the strawman proposes to break such code.
Oops, I'm wrong (pre-caffeine here, sorry!) -- the strawman has NonEmptyBlock
as a LabelUsingStatement, so does not break this at all.
> So requiring {; or similar would be a simpler change and non-breaking in the
> sense that one can rescue such code so it works in Harmony as it used to, by
> adding one character. Good idea!
Your idea still may help make a single spec-grammar that does not require some
arbitrary-lookahead decision procedure on the side.
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