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authorMikolaj Konarski <mikolaj.konarski@funktory.com>2025-09-26 21:09:23 +0200
committerMikolaj Konarski <mikolaj.konarski@funktory.com>2025-09-26 21:22:57 +0200
commit24d93b59d75c1ea11f4443965d681236c459b439 (patch)
tree85d80732066ce8bc5ac19bb19d343d37086ca181 /src/Data/Array/Nested/Lemmas.hs
parent61f393ff8f4179e1184e715679dcbadf871cde06 (diff)
Diffstat (limited to 'src/Data/Array/Nested/Lemmas.hs')
-rw-r--r--src/Data/Array/Nested/Lemmas.hs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Lemmas.hs b/src/Data/Array/Nested/Lemmas.hs
index e8c3b9e..e089479 100644
--- a/src/Data/Array/Nested/Lemmas.hs
+++ b/src/Data/Array/Nested/Lemmas.hs
@@ -43,6 +43,8 @@ lemAppLeft _ Refl = Refl
lemReplicatePlusApp :: forall n m a. SNat n -> Proxy m -> Proxy a
-> Replicate (n + m) a :~: Replicate n a ++ Replicate m a
+{- for now, the plugins can't derive a type for this code, see
+ https://github.com/clash-lang/ghc-typelits-natnormalise/pull/98#issuecomment-3332842214
lemReplicatePlusApp sn _ _ = go sn
where
go :: SNat n' -> Replicate (n' + m) a :~: Replicate n' a ++ Replicate m a
@@ -51,6 +53,8 @@ lemReplicatePlusApp sn _ _ = go sn
| Refl <- lemReplicateSucc @a n
, Refl <- go n
= sym (lemReplicateSucc @a (SNat @(n'm1 + m)))
+-}
+lemReplicatePlusApp _ _ _ = unsafeCoerceRefl
lemDropLenApp :: Rank l1 <= Rank l2
=> Proxy l1 -> Proxy l2 -> Proxy rest