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Diffstat (limited to 'src/Data/Array/Nested/Ranked.hs')
| -rw-r--r-- | src/Data/Array/Nested/Ranked.hs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/Data/Array/Nested/Ranked.hs b/src/Data/Array/Nested/Ranked.hs index bf35cc4..9504247 100644 --- a/src/Data/Array/Nested/Ranked.hs +++ b/src/Data/Array/Nested/Ranked.hs @@ -69,6 +69,15 @@ rgenerate sh f , Refl <- lemRankReplicate sn = Ranked (mgenerate (shxFromShR sh) (f . ixrFromIxX)) +-- TODO: this would be shorter and faster written with rfromVector, +-- but unfortunately we don't have ixrFromLinear +rgeneratePrim :: forall n a. PrimElt a => IShR n -> (IIxR n -> a) -> Ranked n a +rgeneratePrim sh f + | sn@SNat <- shrRank sh + , Dict <- lemKnownReplicate sn + , Refl <- lemRankReplicate sn + = Ranked (mgeneratePrim (shxFromShR sh) (f . ixrFromIxX)) + -- | See the documentation of 'mlift'. rlift :: forall n1 n2 a. Elt a => SNat n2 |