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if let is queued, with Rust's spelling.

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Joseph Ferano 2026-09-26 11:21:25 +07:00
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@ -10,6 +10,10 @@ pointing at it. A CANCELLED entry carries the one-line reason, because an idea
rejected without a record is an idea that gets re-proposed.
* Language surface
** NEXT if let
Decided 2026-09-26 (126), Rust's spelling: =if let Some(g) = left= plus a block tests
the pattern and binds =g= in that block only; =elif=/=else= follow as for =if=. Any
=match= pattern may stand where =Some(g)= is. Reads to a two-arm =match=.
** NEXT when as a value, and get as a checked lookup
Decided 2026-09-26 (125): a =when= whose value is used gives =Option(T)=, =Some= of its
body when the test holds and =None= otherwise; as a statement it is unchanged.