basement-0.0.12: Foundation scrap box of array & string
LicenseBSD-style
MaintainerHaskell Foundation
Safe HaskellNone
LanguageHaskell2010

Basement.From

Description

Flexible Type convertion

From is multi parameter type class that allow converting from a to b.

Only type that are valid to convert to another type should be From instance; otherwise TryFrom should be used.

Into (resp TryInto) allows the contrary instances to be able to specify the destination type before the source. This is practical with TypeApplication

Synopsis

Documentation

class From a b where #

Class of things that can be converted from a to b.

In a valid instance, the source should be always representable by the destination, otherwise the instance should be using TryFrom

Methods

from :: a -> b #

Instances

Instances details
From Int Int64 # 
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Defined in Basement.From

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from :: Int -> Int64 #

From Int8 Int # 
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from :: Int8 -> Int #

From Int8 Int16 # 
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from :: Int8 -> Int16 #

From Int8 Int32 # 
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from :: Int8 -> Int32 #

From Int8 Int64 # 
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from :: Int8 -> Int64 #

From Int16 Int # 
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from :: Int16 -> Int #

From Int16 Int32 # 
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from :: Int16 -> Int32 #

From Int16 Int64 # 
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from :: Int16 -> Int64 #

From Int32 Int # 
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from :: Int32 -> Int #

From Int32 Int64 # 
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from :: Int32 -> Int64 #

From Word Word64 # 
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from :: Word -> Word64 #

From Word8 Int # 
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from :: Word8 -> Int #

From Word8 Int16 # 
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from :: Word8 -> Int16 #

From Word8 Int32 # 
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from :: Word8 -> Int32 #

From Word8 Int64 # 
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from :: Word8 -> Int64 #

From Word8 Word # 
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from :: Word8 -> Word #

From Word8 Word16 # 
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Defined in Basement.From

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from :: Word8 -> Word16 #

From Word8 Word32 # 
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from :: Word8 -> Word32 #

From Word8 Word64 # 
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from :: Word8 -> Word64 #

From Word8 Word128 # 
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from :: Word8 -> Word128 #

From Word8 Word256 # 
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from :: Word8 -> Word256 #

From Word16 Int # 
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from :: Word16 -> Int #

From Word16 Int32 # 
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from :: Word16 -> Int32 #

From Word16 Int64 # 
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Defined in Basement.From

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from :: Word16 -> Int64 #

From Word16 Word # 
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Defined in Basement.From

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from :: Word16 -> Word #

From Word16 Word32 # 
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Defined in Basement.From

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from :: Word16 -> Word32 #

From Word16 Word64 # 
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Defined in Basement.From

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from :: Word16 -> Word64 #

From Word16 Word128 # 
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Defined in Basement.From

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from :: Word16 -> Word128 #

From Word16 Word256 # 
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Defined in Basement.From

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from :: Word16 -> Word256 #

From Word32 Int # 
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from :: Word32 -> Int #

From Word32 Int64 # 
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from :: Word32 -> Int64 #

From Word32 Word # 
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from :: Word32 -> Word #

From Word32 Word64 # 
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from :: Word32 -> Word64 #

From Word32 Word128 # 
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from :: Word32 -> Word128 #

From Word32 Word256 # 
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from :: Word32 -> Word256 #

From Word64 Word128 # 
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from :: Word64 -> Word128 #

From Word64 Word256 # 
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from :: Word64 -> Word256 #

IsIntegral n => From n Integer # 
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from :: n -> Integer #

IsNatural n => From n Natural # 
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from :: n -> Natural #

From a a # 
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from :: a -> a #

From Word128 Word256 # 
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from :: Word128 -> Word256 #

From AsciiString String # 
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from :: AsciiString -> String #

From Word (CountOf ty) # 
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from :: Word -> CountOf ty #

From Word (Offset ty) # 
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from :: Word -> Offset ty #

From AsciiString (UArray Word8) # 
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From String (UArray Word8) # 
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from :: String -> UArray Word8 #

(KnownNat n, NatWithinBound Word256 n) => From (Zn n) Word256 # 
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from :: Zn n -> Word256 #

(KnownNat n, NatWithinBound Word128 n) => From (Zn n) Word128 # 
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from :: Zn n -> Word128 #

(KnownNat n, NatWithinBound Word64 n) => From (Zn n) Word64 # 
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from :: Zn n -> Word64 #

(KnownNat n, NatWithinBound Word32 n) => From (Zn n) Word32 # 
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from :: Zn n -> Word32 #

(KnownNat n, NatWithinBound Word16 n) => From (Zn n) Word16 # 
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from :: Zn n -> Word16 #

(KnownNat n, NatWithinBound Word8 n) => From (Zn n) Word8 # 
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from :: Zn n -> Word8 #

From (Zn64 n) Word256 # 
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from :: Zn64 n -> Word256 #

From (Zn64 n) Word128 # 
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from :: Zn64 n -> Word128 #

From (Zn64 n) Word64 # 
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from :: Zn64 n -> Word64 #

(KnownNat n, NatWithinBound Word32 n) => From (Zn64 n) Word32 # 
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from :: Zn64 n -> Word32 #

(KnownNat n, NatWithinBound Word16 n) => From (Zn64 n) Word16 # 
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from :: Zn64 n -> Word16 #

(KnownNat n, NatWithinBound Word8 n) => From (Zn64 n) Word8 # 
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from :: Zn64 n -> Word8 #

From (CountOf ty) Word # 
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from :: CountOf ty -> Word #

From (CountOf ty) Int # 
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from :: CountOf ty -> Int #

(KnownNat n, NatWithinBound Word64 n) => From (Zn n) (Zn64 n) # 
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from :: Zn n -> Zn64 n #

KnownNat n => From (Zn64 n) (Zn n) # 
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from :: Zn64 n -> Zn n #

PrimType ty => From (Block ty) (UArray ty) # 
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from :: Block ty -> UArray ty #

PrimType ty => From (UArray ty) (Array ty) # 
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from :: UArray ty -> Array ty #

PrimType ty => From (UArray ty) (Block ty) # 
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from :: UArray ty -> Block ty #

PrimType ty => From (Array ty) (Block ty) # 
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from :: Array ty -> Block ty #

PrimType ty => From (Array ty) (UArray ty) # 
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from :: Array ty -> UArray ty #

From (Maybe a) (Either () a) # 
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from :: Maybe a -> Either () a #

(NatWithinBound Int n, PrimType ty) => From (BlockN n ty) (Array ty) # 
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from :: BlockN n ty -> Array ty #

(NatWithinBound Int n, PrimType ty) => From (BlockN n ty) (UArray ty) # 
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from :: BlockN n ty -> UArray ty #

From (BlockN n ty) (Block ty) # 
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from :: BlockN n ty -> Block ty #

From (Either a b) (These a b) # 
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from :: Either a b -> These a b #

(PrimType a, PrimType b, KnownNat n, KnownNat m, (PrimSize b * m) ~ (PrimSize a * n)) => From (BlockN n a) (BlockN m b) # 
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Defined in Basement.From

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from :: BlockN n a -> BlockN m b #

type Into b a = From a b #

class TryFrom a b where #

Class of things that can mostly be converted from a to b, but with possible error cases.

Methods

tryFrom :: a -> Maybe b #

Instances

Instances details
TryFrom Int (CountOf ty) # 
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tryFrom :: Int -> Maybe (CountOf ty) #

TryFrom Int (Offset ty) # 
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tryFrom :: Int -> Maybe (Offset ty) #

TryFrom (UArray Word8) String # 
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(NatWithinBound (CountOf ty) n, KnownNat n, PrimType ty) => TryFrom (Block ty) (BlockN n ty) # 
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tryFrom :: Block ty -> Maybe (BlockN n ty) #

(NatWithinBound (CountOf ty) n, KnownNat n, PrimType ty) => TryFrom (UArray ty) (BlockN n ty) # 
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tryFrom :: UArray ty -> Maybe (BlockN n ty) #

(NatWithinBound (CountOf ty) n, KnownNat n, PrimType ty) => TryFrom (Array ty) (BlockN n ty) # 
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tryFrom :: Array ty -> Maybe (BlockN n ty) #

type TryInto b a = TryFrom a b #

into :: Into b a => a -> b #

Same as from but reverse the type variable so that the destination type can be specified first

e.g. converting:

from _ Word (10 :: Int)

into @Word (10 :: Int)

tryInto :: TryInto b a => a -> Maybe b #

same as tryFrom but reversed