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authorTom Smeding <t.j.smeding@uu.nl>2024-03-28 17:30:54 +0100
committerTom Smeding <t.j.smeding@uu.nl>2024-03-28 17:30:54 +0100
commit373799f36417c086510847e4d6689bd68582e658 (patch)
tree72ac398279c2e8bc2162ffe77f6f054b4e0d2f77 /src/Array.hs
parentae113c0249f3fe8be7df345081b1b51451cd3fdf (diff)
Various improvements
Diffstat (limited to 'src/Array.hs')
-rw-r--r--src/Array.hs11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/Array.hs b/src/Array.hs
index 29806d4..693df05 100644
--- a/src/Array.hs
+++ b/src/Array.hs
@@ -145,6 +145,11 @@ lemKnownNatRank IZX = Dict
lemKnownNatRank (_ ::@ sh) | Dict <- lemKnownNatRank sh = Dict
lemKnownNatRank (_ ::? sh) | Dict <- lemKnownNatRank sh = Dict
+lemKnownNatRankSSX :: StaticShapeX sh -> Dict KnownNat (Rank sh)
+lemKnownNatRankSSX SZX = Dict
+lemKnownNatRankSSX (_ :$@ ssh) | Dict <- lemKnownNatRankSSX ssh = Dict
+lemKnownNatRankSSX (_ :$? ssh) | Dict <- lemKnownNatRankSSX ssh = Dict
+
lemKnownShapeX :: StaticShapeX sh -> Dict KnownShapeX sh
lemKnownShapeX SZX = Dict
lemKnownShapeX (n :$@ ssh) | Dict <- lemKnownShapeX ssh, Dict <- snatKnown n = Dict
@@ -196,3 +201,9 @@ index xarr i
| Refl <- lemAppNil @sh
= let XArray arr' = indexPartial xarr i :: XArray '[] a
in U.unScalar arr'
+
+append :: forall sh a. (KnownShapeX sh, U.Unbox a) => XArray sh a -> XArray sh a -> XArray sh a
+append (XArray a) (XArray b)
+ | Dict <- lemKnownNatRankSSX (knownShapeX @sh)
+ , Dict <- gknownNat (Proxy @(Rank sh))
+ = XArray (U.append a b)