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-rw-r--r--src/Data/Array/Nested/Mixed/Shape.hs4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/Data/Array/Nested/Mixed/Shape.hs b/src/Data/Array/Nested/Mixed/Shape.hs
index dc4063c..6b7708f 100644
--- a/src/Data/Array/Nested/Mixed/Shape.hs
+++ b/src/Data/Array/Nested/Mixed/Shape.hs
@@ -341,7 +341,9 @@ type ListH :: [Maybe Nat] -> Type -> Type
data ListH sh i where
ZH :: ListH '[] i
ConsUnknown :: forall sh i. i -> ListH sh i -> ListH (Nothing : sh) i
- ConsKnown :: forall n sh i. {-# UNPACK #-} SNat n -> ListH sh i -> ListH (Just n : sh) i
+-- TODO: bring this UNPACK back when GHC no longer crashes:
+-- ConsKnown :: forall n sh i. {-# UNPACK #-} SNat n -> ListH sh i -> ListH (Just n : sh) i
+ ConsKnown :: forall n sh i. SNat n -> ListH sh i -> ListH (Just n : sh) i
deriving instance Eq i => Eq (ListH sh i)
deriving instance Ord i => Ord (ListH sh i)