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| author | Joachim Breitner <mail@joachim-breitner.de> | 2021-10-12 21:29:50 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2021-10-15 18:17:26 -0400 |
| commit | b6954f0ca8b6a4408f202405e30fea6328a68d92 (patch) | |
| tree | c07ffd5784d0a809234bb3956b402aa78f37bcd3 /hadrian | |
| parent | bbb1f6dab34243af0a2841164e33eec451396b3f (diff) | |
| download | haskell-b6954f0ca8b6a4408f202405e30fea6328a68d92.tar.gz | |
shadowNames: Use OccEnv a, not [OccName]
this allows us to use a smarter implementation based on
`Data.IntSet.differenceWith`, which should do less work. Also, it will
unblock improvements to !6703.
The `OccEnv a` really denotes a set of `OccName`s. We are not using
`OccSet`, though, because that is an `OccEnv OccName`, and we in !6703
we want to use this with differently-valued `OccEnv`s. But `OccSet`s are
readily and safely coerced into `OccEnv`s.
There is no other use of `delLocalRdrEnvList` remaining, so removing
that.
Diffstat (limited to 'hadrian')
0 files changed, 0 insertions, 0 deletions