diff options
Diffstat (limited to 'src/Data/Array/Nested/Internal/Shaped.hs')
| -rw-r--r-- | src/Data/Array/Nested/Internal/Shaped.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Internal/Shaped.hs b/src/Data/Array/Nested/Internal/Shaped.hs index 7d523b0..d1881c1 100644 --- a/src/Data/Array/Nested/Internal/Shaped.hs +++ b/src/Data/Array/Nested/Internal/Shaped.hs @@ -310,6 +310,16 @@ sfromListPrimLinear sh l = sunScalar :: Elt a => Shaped '[] a -> a sunScalar arr = sindex arr ZIS +snest :: forall sh sh' a. Elt a => ShS sh -> Shaped (sh ++ sh') a -> Shaped sh (Shaped sh' a) +snest sh arr + | Refl <- lemMapJustApp sh (Proxy @sh') + = coerce (mnest (ssxFromShape (shCvtSX sh)) (coerce arr)) + +sunNest :: forall sh sh' a. Elt a => Shaped sh (Shaped sh' a) -> Shaped (sh ++ sh') a +sunNest sarr@(Shaped (M_Shaped (M_Nest _ arr))) + | Refl <- lemMapJustApp (sshape sarr) (Proxy @sh') + = Shaped arr + srerankP :: forall sh1 sh2 sh a b. (Storable a, Storable b) => ShS sh -> ShS sh2 -> (Shaped sh1 (Primitive a) -> Shaped sh2 (Primitive b)) |