diff options
Diffstat (limited to 'src/Data/Array/Nested/Internal/Ranked.hs')
| -rw-r--r-- | src/Data/Array/Nested/Internal/Ranked.hs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Internal/Ranked.hs b/src/Data/Array/Nested/Internal/Ranked.hs index 3e911ac..d6e05e6 100644 --- a/src/Data/Array/Nested/Internal/Ranked.hs +++ b/src/Data/Array/Nested/Internal/Ranked.hs @@ -349,6 +349,16 @@ rtoOrthotope (rtoPrimitive -> Ranked (M_Primitive sh (XArray arr))) runScalar :: Elt a => Ranked 0 a -> a runScalar arr = rindex arr ZIR +rnest :: forall n m a. Elt a => SNat n -> Ranked (n + m) a -> Ranked n (Ranked m a) +rnest n arr + | Refl <- lemReplicatePlusApp n (Proxy @m) (Proxy @(Nothing @Nat)) + = coerce (mnest (ssxFromSNat n) (coerce arr)) + +runNest :: forall n m a. Elt a => Ranked n (Ranked m a) -> Ranked (n + m) a +runNest rarr@(Ranked (M_Ranked (M_Nest _ arr))) + | Refl <- lemReplicatePlusApp (rrank rarr) (Proxy @m) (Proxy @(Nothing @Nat)) + = Ranked arr + rrerankP :: forall n1 n2 n a b. (Storable a, Storable b) => SNat n -> IShR n2 -> (Ranked n1 (Primitive a) -> Ranked n2 (Primitive b)) |