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TypedArray.purs
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197 lines (166 loc) · 4.25 KB
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module Data.ArrayBuffer.TypedArray (
fromArray
, fromArrayBuffer
, fromArrayBufferWithOffset
, fromArrayBufferWithOffsetAndLength
, fromTypedArray
, buffer
, byteLength
, byteOffset
--
--, toUnfoldable
--, fromFoldable
, empty
, singleton
--, range
--, replicate
--, (..)
--, some
--, many
--, null
, length
--, cons
--, (:)
--, snoc
--, insert
--, head
--, tail
--, init
--, uncons
--, unsnoc
, index
, (!!)
--,elemIndex
--,elemLastIndex
--,findIndex
--,findLastIndex
--,insertAt
--,deleteAt
--,updateAt
--,modifyAt
--,alterAt
--,reverse
--,concat
--,concatMap
, filter
--,partition
--,filterA
--,mapMaybe
--,catMaybes
--,mapWithIndex
--,updateAtIndices
--,modifyAtIndices
--,sort
--,sortBy
--,sortWith
--,slice
--,take
--,takeWhile
--,drop
--,dropWhile
--,span
--,group
--,group'
--,groupBy
--,nub
--,nubBy
--,union
--,unionBy
--,delete
--,deleteBy
--,difference
--,(\\)
--,intersect
--,intersectBy
--,zipWith
--,zipWithA
--,zip
--,unzip
--,foldM
--,foldRecM
, unsafeIndex
-- typeclassy methods
, show
, eq
, notEq
, every
, map
, foldl
--, bytesPerElement
, module Data.ArrayBuffer.Types
, module Data.ArrayBuffer.TypedArray.Class
) where
import Prelude hiding (eq, notEq)
import Data.Array as A
import Data.ArrayBuffer.TypedArray.Class (class IsArrayType, Constructor, constructor)
import Data.ArrayBuffer.TypedArray.Raw as Raw
import Data.ArrayBuffer.Types (ArrayBuffer, ArrayView, ByteOffset, Int8Array, Uint8Array, Uint8ClampedArray, Int16Array, Uint16Array, Int32Array, Uint32Array, Float32Array, Float64Array)
import Data.Maybe (Maybe(..), fromJust)
import Partial.Unsafe (unsafePartial)
import Unsafe.Coerce (unsafeCoerce)
foreign import fromArray :: forall t m. IsArrayType t m => Array m -> t
foreign import fromArrayBuffer :: forall t m. IsArrayType t m => ArrayBuffer -> t
fromArrayBufferWithOffset
:: forall t m
. IsArrayType t m
=> ArrayBuffer
-> ByteOffset
-> Maybe t
fromArrayBufferWithOffset = fromArrayBufferWithOffsetImpl Just Nothing
foreign import fromArrayBufferWithOffsetImpl
:: forall t m
. IsArrayType t m
=> (forall r. r -> Maybe r)
-> (forall r. Maybe r)
-> ArrayBuffer
-> ByteOffset
-> Maybe t
fromArrayBufferWithOffsetAndLength
:: forall t m
. IsArrayType t m
=> ArrayBuffer
-> ByteOffset
-> Int
-> Maybe t
fromArrayBufferWithOffsetAndLength =
fromArrayBufferWithOffsetAndLengthImpl Just Nothing
foreign import fromArrayBufferWithOffsetAndLengthImpl
:: forall t m
. IsArrayType t m
=> (forall r. r -> Maybe r)
-> (forall r. Maybe r)
-> ArrayBuffer
-> ByteOffset
-> Int
-> Maybe t
foreign import fromTypedArray :: forall t t'. ArrayView t -> ArrayView t'
foreign import buffer :: forall t. ArrayView t -> ArrayBuffer
foreign import byteLength :: forall t. ArrayView t -> Int
foreign import byteOffset :: forall t. ArrayView t -> Int
foreign import length :: forall t. ArrayView t -> Int
-- | Create an empty typed array.
foreign import empty :: forall t m. IsArrayType t m => t
-- | Create a typed array of one element
singleton :: forall t m. IsArrayType t m => m -> t
singleton = fromArray <<< A.singleton
index :: forall t m. IsArrayType t m => t -> Int -> Maybe m
index = A.index <<< unsafeCoerce
-- | An infix version of `index`.
infixl 8 index as !!
show :: forall t. ArrayView t -> String
show xs = "fromArray [" <> Raw.toString xs <> "]"
eq :: forall t m. IsArrayType (ArrayView t) m => Eq m => ArrayView t -> ArrayView t -> Boolean
eq xs ys = byteLength xs == byteLength ys && flip Raw.every xs \x i _ ->
x == unsafePartial (fromJust $ ys !! i)
notEq :: forall t m. IsArrayType (ArrayView t) m => Eq m => ArrayView t -> ArrayView t -> Boolean
notEq xs ys = xs `eq` ys == false
foreign import every :: forall t m. IsArrayType t m => (m -> Boolean) -> t -> Boolean
foreign import filter :: forall t m. IsArrayType t m => (m -> Boolean) -> t -> t
foreign import map :: forall t m. IsArrayType t m => (m -> m) -> t -> t
foreign import foldl :: forall t m a. IsArrayType t m => (a -> m -> a) -> a -> t -> a
-- | Find the element of an array at the specified index.
unsafeIndex :: forall t m. IsArrayType t m => Partial => t -> Int -> m
unsafeIndex = unsafeIndexImpl
foreign import unsafeIndexImpl :: forall t m. IsArrayType t m => t -> Int -> m
-- TODO
--foreign import bytesPerElement :: forall t m. IsArrayType t m => Int