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-rw-r--r--src/Data/Array/Nested/Internal.hs8
1 files changed, 0 insertions, 8 deletions
diff --git a/src/Data/Array/Nested/Internal.hs b/src/Data/Array/Nested/Internal.hs
index c66bd07..b9adde9 100644
--- a/src/Data/Array/Nested/Internal.hs
+++ b/src/Data/Array/Nested/Internal.hs
@@ -731,14 +731,6 @@ instance Elt a => Elt (Mixed sh' a) where
mvecsFreeze sh (MV_Nest sh' vecs) = M_Nest sh <$> mvecsFreeze (X.shAppend sh sh') vecs
--- | Evidence for the static part of a shape. This pops up only when you are
--- polymorphic in the element type of an array.
-type KnownShX :: [Maybe Nat] -> Constraint
-class KnownShX sh where knownShX :: StaticShX sh
-instance KnownShX '[] where knownShX = ZKX
-instance (KnownNat n, KnownShX sh) => KnownShX (Just n : sh) where knownShX = SKnown natSing :!% knownShX
-instance KnownShX sh => KnownShX (Nothing : sh) where knownShX = SUnknown () :!% knownShX
-
instance (KnownShX sh', KnownElt a) => KnownElt (Mixed sh' a) where
memptyArray sh = M_Nest sh (memptyArray (X.shAppend sh (X.completeShXzeros (knownShX @sh'))))