Ben Greenman 6c2a7eb512 patch: check duplicates before making an or/c for hash keys ... The contract for `(U (I-Hash k1 v1) (M-Hash k2 v2) (W-Hash k3 v3))` is now `(hash/c (or/c k1 k2 k3) (or/c v1 v2 v3))` ONLY WHEN the key and value types are distinct. The contract should no longer include duplicate key or value types.		2017-06-27 01:38:18 -04:00
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typed	Use new DrRacket opt-in buttons for OC.	2017-03-09 17:12:49 -06:00
typed-racket	patch: check duplicates before making an or/c for hash keys	2017-06-27 01:38:18 -04:00
info.rkt	Use new DrRacket opt-in buttons for OC.	2017-03-09 17:12:49 -06:00
LICENSE.txt	Remove extra directories.	2014-12-02 00:53:36 -05:00