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Diffstat (limited to 'testsuite/tests/rep-poly/T14561.hs')
| -rw-r--r-- | testsuite/tests/rep-poly/T14561.hs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/testsuite/tests/rep-poly/T14561.hs b/testsuite/tests/rep-poly/T14561.hs new file mode 100644 index 0000000000..dede8ba2f8 --- /dev/null +++ b/testsuite/tests/rep-poly/T14561.hs @@ -0,0 +1,18 @@ +{-# LANGUAGE RankNTypes #-} +{-# LANGUAGE DataKinds #-} +{-# LANGUAGE PolyKinds #-} +{-# LANGUAGE MagicHash #-} + +module T14561 where + +import GHC.Types +import Unsafe.Coerce + +badId :: forall r (a :: TYPE r). a -> a +badId = unsafeCoerce# +-- Un-saturated application of a representation-polymorphic +-- function that must be eta-expanded + +goodId :: forall (a :: Type). a -> a +goodId = unsafeCoerce# +-- But this one is OK |