diff options
| author | Bartosz Nitka <niteria@gmail.com> | 2016-04-26 05:58:24 -0700 |
|---|---|---|
| committer | Bartosz Nitka <niteria@gmail.com> | 2016-04-26 06:40:04 -0700 |
| commit | c9bcaf3165586ac214fa694e61c55eb45eb131ab (patch) | |
| tree | d01bdfd94886ff368517a6057e2dcf77ce8614cc /compiler/utils/UniqFM.hs | |
| parent | fd5212fdc26686a85085333af57903a59be809c6 (diff) | |
| download | haskell-c9bcaf3165586ac214fa694e61c55eb45eb131ab.tar.gz | |
Kill varSetElemsWellScoped in quantifyTyVars
varSetElemsWellScoped introduces unnecessary non-determinism in
inferred type signatures.
Removing this instance required changing the representation of
TcDepVars to use deterministic sets.
This is the last occurence of varSetElemsWellScoped, allowing me to
finally remove it.
Test Plan:
./validate
I will update the expected outputs when commiting, some reordering
of type variables in types is expected.
Reviewers: goldfire, simonpj, austin, bgamari
Reviewed By: simonpj
Subscribers: thomie, simonmar
Differential Revision: https://phabricator.haskell.org/D2135
GHC Trac Issues: #4012
Diffstat (limited to 'compiler/utils/UniqFM.hs')
| -rw-r--r-- | compiler/utils/UniqFM.hs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/utils/UniqFM.hs b/compiler/utils/UniqFM.hs index 3632926d91..10cc179910 100644 --- a/compiler/utils/UniqFM.hs +++ b/compiler/utils/UniqFM.hs @@ -66,7 +66,7 @@ module UniqFM ( lookupWithDefaultUFM, lookupWithDefaultUFM_Directly, eltsUFM, keysUFM, splitUFM, ufmToSet_Directly, - ufmToList, + ufmToList, ufmToIntMap, joinUFM, pprUniqFM, pprUFM, pluralUFM ) where @@ -298,6 +298,9 @@ eltsUFM (UFM m) = M.elems m ufmToSet_Directly (UFM m) = M.keysSet m ufmToList (UFM m) = map (\(k, v) -> (getUnique k, v)) $ M.toList m +ufmToIntMap :: UniqFM elt -> M.IntMap elt +ufmToIntMap (UFM m) = m + -- Hoopl joinUFM :: JoinFun v -> JoinFun (UniqFM v) joinUFM eltJoin l (OldFact old) (NewFact new) = foldUFM_Directly add (NoChange, old) new |