{-# LANGUAGE MagicHash             #-}
{-# LANGUAGE DefaultSignatures     #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE ScopedTypeVariables   #-}
{-# LANGUAGE UnboxedTuples         #-}
{-# LANGUAGE FlexibleInstances     #-}
{-# LANGUAGE GADTs                 #-}
module Basement.IntegralConv
    ( IntegralDownsize(..)
    , IntegralUpsize(..)
    , intToInt64
    , int64ToInt
    , wordToWord64
    , word64ToWord32s
    , Word32x2(..)
    , word64ToWord
    , wordToChar
    , wordToInt
    , charToInt
    ) where

import GHC.Types
import GHC.Prim
import GHC.Int
import GHC.Word
import Prelude (Integer, fromIntegral)
import Basement.Compat.Base
import Basement.Compat.Natural
import Basement.Numerical.Number
import Basement.Numerical.Conversion

-- | Downsize an integral value
class IntegralDownsize a b where
    integralDownsize :: a -> b
    default integralDownsize :: a ~ b => a -> b
    integralDownsize = a -> b
forall k (cat :: k -> k -> *) (a :: k). Category cat => cat a a
id

    integralDownsizeCheck :: a -> Maybe b

-- | Upsize an integral value
--
-- The destination type 'b' size need to be greater or equal
-- than the size type of 'a'
class IntegralUpsize a b where
    integralUpsize      :: a -> b

integralDownsizeBounded :: forall a b . (Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a)
                        => (a -> b)
                        -> a
                        -> Maybe b
integralDownsizeBounded :: (a -> b) -> a -> Maybe b
integralDownsizeBounded a -> b
aToB a
x
    | a
x a -> a -> Bool
forall a. Ord a => a -> a -> Bool
< b -> a
forall a b. IntegralUpsize a b => a -> b
integralUpsize (b
forall a. Bounded a => a
minBound :: b) Bool -> Bool -> Bool
&& a
x a -> a -> Bool
forall a. Ord a => a -> a -> Bool
> b -> a
forall a b. IntegralUpsize a b => a -> b
integralUpsize (b
forall a. Bounded a => a
maxBound :: b) = Maybe b
forall a. Maybe a
Nothing
    | Bool
otherwise                                                                = b -> Maybe b
forall a. a -> Maybe a
Just (a -> b
aToB a
x)

instance IsIntegral a => IntegralUpsize a Integer where
    integralUpsize :: a -> Integer
integralUpsize = a -> Integer
forall a. IsIntegral a => a -> Integer
toInteger
instance IsNatural a => IntegralUpsize a Natural where
    integralUpsize :: a -> Natural
integralUpsize = a -> Natural
forall a. IsNatural a => a -> Natural
toNatural

instance IntegralUpsize Int8 Int16 where
    integralUpsize :: Int8 -> Int16
integralUpsize (I8# Int#
i) = Int# -> Int16
I16# Int#
i
instance IntegralUpsize Int8 Int32 where
    integralUpsize :: Int8 -> Int32
integralUpsize (I8# Int#
i) = Int# -> Int32
I32# Int#
i
instance IntegralUpsize Int8 Int64 where
    integralUpsize :: Int8 -> Int64
integralUpsize (I8# Int#
i) = Int -> Int64
intToInt64 (Int# -> Int
I# Int#
i)
instance IntegralUpsize Int8 Int where
    integralUpsize :: Int8 -> Int
integralUpsize (I8# Int#
i) = Int# -> Int
I# Int#
i

instance IntegralUpsize Int16 Int32 where
    integralUpsize :: Int16 -> Int32
integralUpsize (I16# Int#
i) = Int# -> Int32
I32# Int#
i
instance IntegralUpsize Int16 Int64 where
    integralUpsize :: Int16 -> Int64
integralUpsize (I16# Int#
i) = Int -> Int64
intToInt64 (Int# -> Int
I# Int#
i)
instance IntegralUpsize Int16 Int where
    integralUpsize :: Int16 -> Int
integralUpsize (I16# Int#
i) = Int# -> Int
I# Int#
i

instance IntegralUpsize Int32 Int64 where
    integralUpsize :: Int32 -> Int64
integralUpsize (I32# Int#
i) = Int -> Int64
intToInt64 (Int# -> Int
I# Int#
i)
instance IntegralUpsize Int32 Int where
    integralUpsize :: Int32 -> Int
integralUpsize (I32# Int#
i) = Int# -> Int
I# Int#
i

instance IntegralUpsize Int Int64 where
    integralUpsize :: Int -> Int64
integralUpsize = Int -> Int64
intToInt64

instance IntegralUpsize Word8 Word16 where
    integralUpsize :: Word8 -> Word16
integralUpsize (W8# Word#
i) = Word# -> Word16
W16# Word#
i
instance IntegralUpsize Word8 Word32 where
    integralUpsize :: Word8 -> Word32
integralUpsize (W8# Word#
i) = Word# -> Word32
W32# Word#
i
instance IntegralUpsize Word8 Word64 where
    integralUpsize :: Word8 -> Word64
integralUpsize (W8# Word#
i) = Word -> Word64
wordToWord64 (Word# -> Word
W# Word#
i)
instance IntegralUpsize Word8 Word where
    integralUpsize :: Word8 -> Word
integralUpsize (W8# Word#
i) = Word# -> Word
W# Word#
i
instance IntegralUpsize Word8 Int16 where
    integralUpsize :: Word8 -> Int16
integralUpsize (W8# Word#
w) = Int# -> Int16
I16# (Word# -> Int#
word2Int# Word#
w)
instance IntegralUpsize Word8 Int32 where
    integralUpsize :: Word8 -> Int32
integralUpsize (W8# Word#
w) = Int# -> Int32
I32# (Word# -> Int#
word2Int# Word#
w)
instance IntegralUpsize Word8 Int64 where
    integralUpsize :: Word8 -> Int64
integralUpsize (W8# Word#
w) = Int -> Int64
intToInt64 (Int# -> Int
I# (Word# -> Int#
word2Int# Word#
w))
instance IntegralUpsize Word8 Int where
    integralUpsize :: Word8 -> Int
integralUpsize (W8# Word#
w) = Int# -> Int
I# (Word# -> Int#
word2Int# Word#
w)

instance IntegralUpsize Word16 Word32 where
    integralUpsize :: Word16 -> Word32
integralUpsize (W16# Word#
i) = Word# -> Word32
W32# Word#
i
instance IntegralUpsize Word16 Word64 where
    integralUpsize :: Word16 -> Word64
integralUpsize (W16# Word#
i) = Word -> Word64
wordToWord64 (Word# -> Word
W# Word#
i)
instance IntegralUpsize Word16 Word where
    integralUpsize :: Word16 -> Word
integralUpsize (W16# Word#
i) = Word# -> Word
W# Word#
i

instance IntegralUpsize Word32 Word64 where
    integralUpsize :: Word32 -> Word64
integralUpsize (W32# Word#
i) = Word -> Word64
wordToWord64 (Word# -> Word
W# Word#
i)
instance IntegralUpsize Word32 Word where
    integralUpsize :: Word32 -> Word
integralUpsize (W32# Word#
i) = Word# -> Word
W# Word#
i

instance IntegralUpsize Word Word64 where
    integralUpsize :: Word -> Word64
integralUpsize = Word -> Word64
wordToWord64

instance IntegralDownsize Int Int8 where
    integralDownsize :: Int -> Int8
integralDownsize      (I# Int#
i) = Int# -> Int8
I8# (Int# -> Int#
narrow8Int# Int#
i)
    integralDownsizeCheck :: Int -> Maybe Int8
integralDownsizeCheck = (Int -> Int8) -> Int -> Maybe Int8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int -> Int8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Int Int16 where
    integralDownsize :: Int -> Int16
integralDownsize      (I# Int#
i) = Int# -> Int16
I16# (Int# -> Int#
narrow16Int# Int#
i)
    integralDownsizeCheck :: Int -> Maybe Int16
integralDownsizeCheck = (Int -> Int16) -> Int -> Maybe Int16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int -> Int16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Int Int32 where
    integralDownsize :: Int -> Int32
integralDownsize      (I# Int#
i) = Int# -> Int32
I32# (Int# -> Int#
narrow32Int# Int#
i)
    integralDownsizeCheck :: Int -> Maybe Int32
integralDownsizeCheck = (Int -> Int32) -> Int -> Maybe Int32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int -> Int32
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Int64 Int8 where
    integralDownsize :: Int64 -> Int8
integralDownsize      Int64
i = Int -> Int8
forall a b. IntegralDownsize a b => a -> b
integralDownsize (Int64 -> Int
int64ToInt Int64
i)
    integralDownsizeCheck :: Int64 -> Maybe Int8
integralDownsizeCheck = (Int64 -> Int8) -> Int64 -> Maybe Int8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int64 -> Int8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Int64 Int16 where
    integralDownsize :: Int64 -> Int16
integralDownsize      Int64
i = Int -> Int16
forall a b. IntegralDownsize a b => a -> b
integralDownsize (Int64 -> Int
int64ToInt Int64
i)
    integralDownsizeCheck :: Int64 -> Maybe Int16
integralDownsizeCheck = (Int64 -> Int16) -> Int64 -> Maybe Int16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int64 -> Int16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Int64 Int32 where
    integralDownsize :: Int64 -> Int32
integralDownsize      Int64
i = Int -> Int32
forall a b. IntegralDownsize a b => a -> b
integralDownsize (Int64 -> Int
int64ToInt Int64
i)
    integralDownsizeCheck :: Int64 -> Maybe Int32
integralDownsizeCheck = (Int64 -> Int32) -> Int64 -> Maybe Int32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int64 -> Int32
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Int64 Int where
    integralDownsize :: Int64 -> Int
integralDownsize      Int64
i = Int64 -> Int
int64ToInt Int64
i
    integralDownsizeCheck :: Int64 -> Maybe Int
integralDownsizeCheck = (Int64 -> Int) -> Int64 -> Maybe Int
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Int64 -> Int
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Word64 Word8 where
    integralDownsize :: Word64 -> Word8
integralDownsize      (W64# Word#
i) = Word# -> Word8
W8# (Word# -> Word#
narrow8Word# (Word# -> Word#
word64ToWord# Word#
i))
    integralDownsizeCheck :: Word64 -> Maybe Word8
integralDownsizeCheck = (Word64 -> Word8) -> Word64 -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word64 -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Word64 Word16 where
    integralDownsize :: Word64 -> Word16
integralDownsize      (W64# Word#
i) = Word# -> Word16
W16# (Word# -> Word#
narrow16Word# (Word# -> Word#
word64ToWord# Word#
i))
    integralDownsizeCheck :: Word64 -> Maybe Word16
integralDownsizeCheck = (Word64 -> Word16) -> Word64 -> Maybe Word16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word64 -> Word16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Word64 Word32 where
    integralDownsize :: Word64 -> Word32
integralDownsize      (W64# Word#
i) = Word# -> Word32
W32# (Word# -> Word#
narrow32Word# (Word# -> Word#
word64ToWord# Word#
i))
    integralDownsizeCheck :: Word64 -> Maybe Word32
integralDownsizeCheck = (Word64 -> Word32) -> Word64 -> Maybe Word32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word64 -> Word32
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Word Word8 where
    integralDownsize :: Word -> Word8
integralDownsize (W# Word#
w) = Word# -> Word8
W8# (Word# -> Word#
narrow8Word# Word#
w)
    integralDownsizeCheck :: Word -> Maybe Word8
integralDownsizeCheck = (Word -> Word8) -> Word -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Word Word16 where
    integralDownsize :: Word -> Word16
integralDownsize (W# Word#
w) = Word# -> Word16
W16# (Word# -> Word#
narrow16Word# Word#
w)
    integralDownsizeCheck :: Word -> Maybe Word16
integralDownsizeCheck = (Word -> Word16) -> Word -> Maybe Word16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word -> Word16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Word Word32 where
    integralDownsize :: Word -> Word32
integralDownsize (W# Word#
w) = Word# -> Word32
W32# (Word# -> Word#
narrow32Word# Word#
w)
    integralDownsizeCheck :: Word -> Maybe Word32
integralDownsizeCheck = (Word -> Word32) -> Word -> Maybe Word32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word -> Word32
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Word32 Word8 where
    integralDownsize :: Word32 -> Word8
integralDownsize      (W32# Word#
i) = Word# -> Word8
W8# (Word# -> Word#
narrow8Word# Word#
i)
    integralDownsizeCheck :: Word32 -> Maybe Word8
integralDownsizeCheck = (Word32 -> Word8) -> Word32 -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word32 -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Word32 Word16 where
    integralDownsize :: Word32 -> Word16
integralDownsize      (W32# Word#
i) = Word# -> Word16
W16# (Word# -> Word#
narrow16Word# Word#
i)
    integralDownsizeCheck :: Word32 -> Maybe Word16
integralDownsizeCheck = (Word32 -> Word16) -> Word32 -> Maybe Word16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word32 -> Word16
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Word16 Word8 where
    integralDownsize :: Word16 -> Word8
integralDownsize      (W16# Word#
i) = Word# -> Word8
W8# (Word# -> Word#
narrow8Word# Word#
i)
    integralDownsizeCheck :: Word16 -> Maybe Word8
integralDownsizeCheck = (Word16 -> Word8) -> Word16 -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Word16 -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Integer Int8 where
    integralDownsize :: Integer -> Int8
integralDownsize = Integer -> Int8
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Int8
integralDownsizeCheck = (Integer -> Int8) -> Integer -> Maybe Int8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Int8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Int16 where
    integralDownsize :: Integer -> Int16
integralDownsize = Integer -> Int16
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Int16
integralDownsizeCheck = (Integer -> Int16) -> Integer -> Maybe Int16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Int16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Int32 where
    integralDownsize :: Integer -> Int32
integralDownsize = Integer -> Int32
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Int32
integralDownsizeCheck = (Integer -> Int32) -> Integer -> Maybe Int32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Int32
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Int64 where
    integralDownsize :: Integer -> Int64
integralDownsize = Integer -> Int64
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Int64
integralDownsizeCheck = (Integer -> Int64) -> Integer -> Maybe Int64
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Int64
forall a b. IntegralDownsize a b => a -> b
integralDownsize

instance IntegralDownsize Integer Word8 where
    integralDownsize :: Integer -> Word8
integralDownsize = Integer -> Word8
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Word8
integralDownsizeCheck = (Integer -> Word8) -> Integer -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Word16 where
    integralDownsize :: Integer -> Word16
integralDownsize = Integer -> Word16
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Word16
integralDownsizeCheck = (Integer -> Word16) -> Integer -> Maybe Word16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Word16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Word32 where
    integralDownsize :: Integer -> Word32
integralDownsize = Integer -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Word32
integralDownsizeCheck = (Integer -> Word32) -> Integer -> Maybe Word32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Word32
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Word64 where
    integralDownsize :: Integer -> Word64
integralDownsize = Integer -> Word64
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Integer -> Maybe Word64
integralDownsizeCheck = (Integer -> Word64) -> Integer -> Maybe Word64
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Integer -> Word64
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Integer Natural where
    integralDownsize :: Integer -> Natural
integralDownsize Integer
i
        | Integer
i Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
>= Integer
0    = Integer -> Natural
forall a b. (Integral a, Num b) => a -> b
fromIntegral Integer
i
        | Bool
otherwise = Natural
0
    integralDownsizeCheck :: Integer -> Maybe Natural
integralDownsizeCheck Integer
i
        | Integer
i Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
>= Integer
0    = Natural -> Maybe Natural
forall a. a -> Maybe a
Just (Integer -> Natural
forall a b. (Integral a, Num b) => a -> b
fromIntegral Integer
i)
        | Bool
otherwise = Maybe Natural
forall a. Maybe a
Nothing

instance IntegralDownsize Natural Word8 where
    integralDownsize :: Natural -> Word8
integralDownsize = Natural -> Word8
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Natural -> Maybe Word8
integralDownsizeCheck = (Natural -> Word8) -> Natural -> Maybe Word8
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Natural -> Word8
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Natural Word16 where
    integralDownsize :: Natural -> Word16
integralDownsize = Natural -> Word16
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Natural -> Maybe Word16
integralDownsizeCheck = (Natural -> Word16) -> Natural -> Maybe Word16
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Natural -> Word16
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Natural Word32 where
    integralDownsize :: Natural -> Word32
integralDownsize = Natural -> Word32
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Natural -> Maybe Word32
integralDownsizeCheck = (Natural -> Word32) -> Natural -> Maybe Word32
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Natural -> Word32
forall a b. IntegralDownsize a b => a -> b
integralDownsize
instance IntegralDownsize Natural Word64 where
    integralDownsize :: Natural -> Word64
integralDownsize = Natural -> Word64
forall a b. (Integral a, Num b) => a -> b
fromIntegral
    integralDownsizeCheck :: Natural -> Maybe Word64
integralDownsizeCheck = (Natural -> Word64) -> Natural -> Maybe Word64
forall a b.
(Ord a, Bounded b, IntegralDownsize a b, IntegralUpsize b a) =>
(a -> b) -> a -> Maybe b
integralDownsizeBounded Natural -> Word64
forall a b. IntegralDownsize a b => a -> b
integralDownsize