fromList1 (the analogue to orthotope's fromList)

2 files changed, 12 insertions, 3 deletions

diff --git a/src/Data/Array/Nested.hs b/src/Data/Array/Nested.hs
index 9219a74..8fadef6 100644
--- a/src/Data/Array/Nested.hs
+++ b/src/Data/Array/Nested.hs
@@ -5,7 +5,7 @@ module Data.Array.Nested (
   IxR(..),
   rshape, rindex, rindexPartial, rgenerate, rsumOuter1,
   rtranspose, rappend, rscalar, rfromVector, runScalar,
-  rconstant, rfromList,
+  rconstant, rfromList, rfromList1,
   -- ** Lifting orthotope operations to 'Ranked' arrays
   rlift,
 
@@ -15,7 +15,7 @@ module Data.Array.Nested (
   KnownShape(..), SShape(..),
   sshape, sindex, sindexPartial, sgenerate, ssumOuter1,
   stranspose, sappend, sscalar, sfromVector, sunScalar,
-  sconstant, sfromList,
+  sconstant, sfromList, sfromList1,
   -- ** Lifting orthotope operations to 'Shaped' arrays
   slift,
 
@@ -24,7 +24,7 @@ module Data.Array.Nested (
   IxX(..),
   KnownShapeX(..), StaticShapeX(..),
   mgenerate, mtranspose, mappend, mfromVector, munScalar,
-  mconstant,
+  mconstant, mfromList1,
 
   -- * Array elements
   Elt(mshape, mindex, mindexPartial, mscalar, mfromList, mlift, mlift2),
diff --git a/src/Data/Array/Nested/Internal.hs b/src/Data/Array/Nested/Internal.hs
index f76b2ab..6f0cfc8 100644
--- a/src/Data/Array/Nested/Internal.hs
+++ b/src/Data/Array/Nested/Internal.hs
@@ -489,6 +489,9 @@ mfromVector sh v
   | otherwise =
       M_Primitive (X.fromVector sh v)
 
+mfromList1 :: (KnownShapeX '[n], Elt a) => NonEmpty a -> Mixed '[n] a
+mfromList1 = mfromList . fmap mscalar
+
 munScalar :: Elt a => Mixed '[] a -> a
 munScalar arr = mindex arr IZX
 
@@ -918,6 +921,9 @@ rfromVector sh v
   | Dict <- lemKnownReplicate (Proxy @n)
   = Ranked (mfromVector (ixCvtRX sh) v)
 
+rfromList1 :: Elt a => NonEmpty a -> Ranked I1 a
+rfromList1 = Ranked . mfromList . fmap mscalar
+
 runScalar :: Elt a => Ranked I0 a -> a
 runScalar arr = rindex arr IZR
 
@@ -1051,6 +1057,9 @@ sfromVector v
   | Dict <- lemKnownMapJust (Proxy @sh)
   = Shaped (mfromVector (ixCvtSX (cvtSShapeIxS (knownShape @sh))) v)
 
+sfromList1 :: (KnownNat n, Elt a) => NonEmpty a -> Shaped '[n] a
+sfromList1 = Shaped . mfromList . fmap mscalar
+
 sunScalar :: Elt a => Shaped '[] a -> a
 sunScalar arr = sindex arr IZS