Remove LArray
LArrays were originally devised for efficiency reasons, but now that Delayed array representations exist there isn't any need for it.
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@ -26,7 +26,6 @@ modules = Data.NP,
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Data.NumIdr.Interfaces,
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Data.NumIdr.Scalar,
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Data.NumIdr.Vector,
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Data.NumIdr.LArray,
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Data.NumIdr.Transform,
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Data.NumIdr.Transform.Affine,
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Data.NumIdr.Transform.Isometry,
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@ -1,170 +0,0 @@
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module Data.NumIdr.LArray
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import Data.Vect
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import Data.NumIdr.PrimArray
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import Data.NumIdr.Array
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%default total
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||| An array type that is guaranteed to be unique through linear types.
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||| This type can be used to operate on an array value without it being copied
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||| on every mutation.
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export
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data LArray : Vect rk Nat -> Type -> Type where
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MkLArray : (ord : Order) -> (sts : Vect rk Nat) ->
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(s : Vect rk Nat) -> PrimArray a -> LArray s a
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||| A vector that is guaranteed to be unique through linear types.
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export
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LVector : Nat -> Type -> Type
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LVector n = LArray [n]
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||| A matrix that is guaranteed to be unique through linear types.
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export
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LMatrix : (m, n : Nat) -> Type -> Type
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LMatrix m n = LArray [m,n]
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||| A matrix that is guaranteed to be unique through linear types.
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export
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LMatrix' : Nat -> Type -> Type
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LMatrix' n = LArray [n,n]
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thaw : Array s a -> LArray s a
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thaw {s} arr with (viewShape arr)
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_ | Shape s = MkLArray (getOrder arr) (strides arr) s (getPrim arr)
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||| Freeze a linear array into an immutable array.
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export
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freeze : (1 _ : LArray s a) -> Array s a
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freeze (MkLArray ord sts s arr) = unsafeMkArray ord sts s arr
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--------------------------------------------------------------------------------
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-- Constructors
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--------------------------------------------------------------------------------
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export
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repeatL : (s : Vect rk Nat) -> a -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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repeatL s x f = freeze $ f (thaw $ repeat s x)
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export
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zerosL : Num a => (s : Vect rk Nat) -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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zerosL s f = freeze $ f (thaw $ zeros s)
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export
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onesL : Num a => (s : Vect rk Nat) -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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onesL s f = freeze $ f (thaw $ ones s)
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export
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fromVectL : (s : Vect rk Nat) -> Vect (product s) a -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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fromVectL s v f = freeze $ f (thaw $ fromVect s v)
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export
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fromStreamL : (s : Vect rk Nat) -> Stream a -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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fromStreamL s xs f = freeze $ f (thaw $ fromStream s xs)
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export
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copyToL : Array s a -> ((1 _ : LArray s a) -> LArray s' b) -> Array s' b
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copyToL {s} arr f with (viewShape arr)
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_ | Shape s =
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let ord = getOrder arr
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sts = strides arr
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prim = copy $ getPrim arr
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in freeze $ f (thaw $ unsafeMkArray ord sts s prim)
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--------------------------------------------------------------------------------
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-- Indexing
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--------------------------------------------------------------------------------
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infixl 10 !!
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infixl 10 !?
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infixl 10 !#
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infixl 11 !!..
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infixl 11 !?..
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infixl 11 !#..
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||| Index the array using the given coordinates.
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export
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index : Coords s -> (1 _ : LArray s a) -> Res a (const $ LArray s a)
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index is (MkLArray ord sts s arr) =
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index (getLocation sts is) arr
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# MkLArray ord sts s arr
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||| Index the array using the given coordinates.
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||| This is the operator form of `index`.
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export %inline
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(!!) : (1 _ : LArray s a) -> Coords s -> Res a (const $ LArray s a)
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arr !! is = index is arr
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||| Update the entry at the given coordinates using the function.
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export
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indexUpdate : Coords s -> (a -> a) -> (1 _ : LArray s a) -> LArray s a
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indexUpdate is f (MkLArray ord sts s arr) =
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MkLArray ord sts s (unsafeUpdateInPlace (getLocation sts is) f arr)
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||| Set the entry at the given coordinates to the given value.
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export
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indexSet : Coords s -> a -> (1 _ : LArray s a) -> LArray s a
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indexSet is = indexUpdate is . const
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||| Index the array using the given coordinates, returning `Nothing` if the
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||| coordinates are out of bounds.
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export
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indexNB : Vect rk Nat -> (1 _ : LArray {rk} s a) -> Res (Maybe a) (const $ LArray s a)
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indexNB is (MkLArray ord sts s arr) =
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(if all id $ zipWith (<) is s
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then Just $ index (getLocation' sts is) arr
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else Nothing)
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# MkLArray ord sts s arr
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||| Index the array using the given coordinates, returning `Nothing` if the
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||| coordinates are out of bounds.
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||| This is the operator form of `indexNB`.
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export %inline
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(!?) : (1 _ : LArray {rk} s a) -> Vect rk Nat -> Res (Maybe a) (const $ LArray s a)
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arr !? is = indexNB is arr
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||| Update the entry at the given coordinates using the function. `Nothing` is
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||| returned if the coordinates are out of bounds.
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export
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indexUpdateNB : Vect rk Nat -> (a -> a) -> LArray {rk} s a -> Maybe (LArray s a)
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indexUpdateNB is f (MkLArray ord sts s arr) =
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if all id $ zipWith (<) is s
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then Just $ MkLArray ord sts s (unsafeUpdateInPlace (getLocation' sts is) f arr)
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else Nothing
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||| Set the entry at the given coordinates using the function. `Nothing` is
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||| returned if the coordinates are out of bounds.
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export
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indexSetNB : Vect rk Nat -> a -> LArray {rk} s a -> Maybe (LArray s a)
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indexSetNB is = indexUpdateNB is . const
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||| Index the array using the given coordinates.
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||| WARNING: This function does not perform any bounds check on its inputs.
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||| Misuse of this function can easily break memory safety.
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export
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indexUnsafe : Vect rk Nat -> (1 _ : LArray {rk} s a) -> Res a (const $ LArray s a)
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indexUnsafe is (MkLArray ord sts s arr) =
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index (getLocation' sts is) arr
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# MkLArray ord sts s arr
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||| Index the array using the given coordinates.
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||| WARNING: This function does not perform any bounds check on its inputs.
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||| Misuse of this function can easily break memory safety.
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||| This is the operator form of `indexUnsafe`.
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export %inline
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(!#) : (1 _ : LArray {rk} s a) -> Vect rk Nat -> Res a (const $ LArray s a)
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arr !# is = indexUnsafe is arr
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