diff options
Diffstat (limited to 'src/Data/Array/Nested/Convert.hs')
| -rw-r--r-- | src/Data/Array/Nested/Convert.hs | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/src/Data/Array/Nested/Convert.hs b/src/Data/Array/Nested/Convert.hs index c27c4c2..6be0f74 100644 --- a/src/Data/Array/Nested/Convert.hs +++ b/src/Data/Array/Nested/Convert.hs @@ -67,9 +67,12 @@ ixrFromIxS Prelude.. coerce ixrFromIxS' :: forall sh i. SNat (Rank sh) -> IxS sh i -> IxR (Rank sh) i -ixrFromIxS' _ = coerce - Prelude.. (unsafeCoerce :: IxX (MapJust sh) i -> IxX (Replicate (Rank sh) Nothing) i) - Prelude.. coerce +ixrFromIxS' _ + | Refl <- lemRankReplicate (Proxy @(Rank sh)) + , Refl <- lemRankMapJust (Proxy @sh) + = coerce + Prelude.. (coerceEqualRankListX :: ListX (MapJust sh) i -> ListX (Replicate (Rank sh) Nothing) i) + Prelude.. coerce -- ixrFromIxX re-exported @@ -99,9 +102,12 @@ ixsFromIxR Prelude.. coerce ixsFromIxR' :: forall sh i. ShS sh -> IxR (Rank sh) i -> IxS sh i -ixsFromIxR' _ = coerce - Prelude.. (unsafeCoerce :: IxX (Replicate (Rank sh) Nothing) i -> IxX (MapJust sh) i) - Prelude.. coerce +ixsFromIxR' _ + | Refl <- lemRankReplicate (Proxy @(Rank sh)) + , Refl <- lemRankMapJust (Proxy @sh) + = coerce + Prelude.. (coerceEqualRankListX :: ListX (Replicate (Rank sh) Nothing) i -> ListX (MapJust sh) i) + Prelude.. coerce -- ixsFromIxX re-exported |