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Diffstat (limited to 'testsuite/tests/quantified-constraints/T15359.hs')
| -rw-r--r-- | testsuite/tests/quantified-constraints/T15359.hs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/testsuite/tests/quantified-constraints/T15359.hs b/testsuite/tests/quantified-constraints/T15359.hs new file mode 100644 index 0000000000..7ef1cc5572 --- /dev/null +++ b/testsuite/tests/quantified-constraints/T15359.hs @@ -0,0 +1,12 @@ +{-# LANGUAGE MultiParamTypeClasses, GADTs, RankNTypes, + ConstraintKinds, QuantifiedConstraints #-} + +module T15359 where + +class C a b + +data Dict c where + Dict :: c => Dict c + +foo :: (forall a b. C a b => a ~ b) => Dict (C a b) -> a -> b +foo Dict x = x |