License	BSD-style
Maintainer	Haskell Foundation
Safe Haskell	None
Language	Haskell2010

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 Source #

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

Minimal complete definition

from

Methods

from :: a -> b Source #

Instances

From Int Int64 Source #
Methods from :: Int -> Int64 Source #
From Int8 Int Source #
Methods from :: Int8 -> Int Source #
From Int8 Int16 Source #
Methods from :: Int8 -> Int16 Source #
From Int8 Int32 Source #
Methods from :: Int8 -> Int32 Source #
From Int8 Int64 Source #
Methods from :: Int8 -> Int64 Source #
From Int16 Int Source #
Methods from :: Int16 -> Int Source #
From Int16 Int32 Source #
Methods from :: Int16 -> Int32 Source #
From Int16 Int64 Source #
Methods from :: Int16 -> Int64 Source #
From Int32 Int Source #
Methods from :: Int32 -> Int Source #
From Int32 Int64 Source #
Methods from :: Int32 -> Int64 Source #
From Word Word64 Source #
Methods from :: Word -> Word64 Source #
From Word8 Int Source #
Methods from :: Word8 -> Int Source #
From Word8 Int16 Source #
Methods from :: Word8 -> Int16 Source #
From Word8 Int32 Source #
Methods from :: Word8 -> Int32 Source #
From Word8 Int64 Source #
Methods from :: Word8 -> Int64 Source #
From Word8 Word Source #
Methods from :: Word8 -> Word Source #
From Word8 Word16 Source #
Methods from :: Word8 -> Word16 Source #
From Word8 Word32 Source #
Methods from :: Word8 -> Word32 Source #
From Word8 Word64 Source #
Methods from :: Word8 -> Word64 Source #
From Word8 Word128 Source #
Methods from :: Word8 -> Word128 Source #
From Word8 Word256 Source #
Methods from :: Word8 -> Word256 Source #
From Word16 Int Source #
Methods from :: Word16 -> Int Source #
From Word16 Int32 Source #
Methods from :: Word16 -> Int32 Source #
From Word16 Int64 Source #
Methods from :: Word16 -> Int64 Source #
From Word16 Word Source #
Methods from :: Word16 -> Word Source #
From Word16 Word32 Source #
Methods from :: Word16 -> Word32 Source #
From Word16 Word64 Source #
Methods from :: Word16 -> Word64 Source #
From Word16 Word128 Source #
Methods from :: Word16 -> Word128 Source #
From Word16 Word256 Source #
Methods from :: Word16 -> Word256 Source #
From Word32 Int Source #
Methods from :: Word32 -> Int Source #
From Word32 Int64 Source #
Methods from :: Word32 -> Int64 Source #
From Word32 Word Source #
Methods from :: Word32 -> Word Source #
From Word32 Word64 Source #
Methods from :: Word32 -> Word64 Source #
From Word32 Word128 Source #
Methods from :: Word32 -> Word128 Source #
From Word32 Word256 Source #
Methods from :: Word32 -> Word256 Source #
From Word64 Word128 Source #
Methods from :: Word64 -> Word128 Source #
From Word64 Word256 Source #
Methods from :: Word64 -> Word256 Source #
IsIntegral n => From n Integer Source #
Methods from :: n -> Integer Source #
IsNatural n => From n Natural Source #
Methods from :: n -> Natural Source #
From a a Source #
Methods from :: a -> a Source #
From AsciiString String Source #
Methods from :: AsciiString -> String Source #
From Word (CountOf ty) Source #
Methods from :: Word -> CountOf ty Source #
From Word (Offset ty) Source #
Methods from :: Word -> Offset ty Source #
From AsciiString (UArray Word8) Source #
Methods from :: AsciiString -> UArray Word8 Source #
From String (UArray Word8) Source #
Methods from :: String -> UArray Word8 Source #
(KnownNat n, NatWithinBound Word256 n) => From (Zn n) Word256 Source #
Methods from :: Zn n -> Word256 Source #
(KnownNat n, NatWithinBound Word128 n) => From (Zn n) Word128 Source #
Methods from :: Zn n -> Word128 Source #
(KnownNat n, NatWithinBound Word64 n) => From (Zn n) Word64 Source #
Methods from :: Zn n -> Word64 Source #
(KnownNat n, NatWithinBound Word32 n) => From (Zn n) Word32 Source #
Methods from :: Zn n -> Word32 Source #
(KnownNat n, NatWithinBound Word16 n) => From (Zn n) Word16 Source #
Methods from :: Zn n -> Word16 Source #
(KnownNat n, NatWithinBound Word8 n) => From (Zn n) Word8 Source #
Methods from :: Zn n -> Word8 Source #
From (Zn64 n) Word256 Source #
Methods from :: Zn64 n -> Word256 Source #
From (Zn64 n) Word128 Source #
Methods from :: Zn64 n -> Word128 Source #
From (Zn64 n) Word64 Source #
Methods from :: Zn64 n -> Word64 Source #
(KnownNat n, NatWithinBound Word32 n) => From (Zn64 n) Word32 Source #
Methods from :: Zn64 n -> Word32 Source #
(KnownNat n, NatWithinBound Word16 n) => From (Zn64 n) Word16 Source #
Methods from :: Zn64 n -> Word16 Source #
(KnownNat n, NatWithinBound Word8 n) => From (Zn64 n) Word8 Source #
Methods from :: Zn64 n -> Word8 Source #
From (CountOf ty) Word Source #
Methods from :: CountOf ty -> Word Source #
From (CountOf ty) Int Source #
Methods from :: CountOf ty -> Int Source #
(KnownNat n, NatWithinBound Word64 n) => From (Zn n) (Zn64 n) Source #
Methods from :: Zn n -> Zn64 n Source #
KnownNat n => From (Zn64 n) (Zn n) Source #
Methods from :: Zn64 n -> Zn n Source #
PrimType ty => From (Block ty) (UArray ty) Source #
Methods from :: Block ty -> UArray ty Source #
PrimType ty => From (UArray ty) (Array ty) Source #
Methods from :: UArray ty -> Array ty Source #
PrimType ty => From (UArray ty) (Block ty) Source #
Methods from :: UArray ty -> Block ty Source #
PrimType ty => From (Array ty) (Block ty) Source #
Methods from :: Array ty -> Block ty Source #
PrimType ty => From (Array ty) (UArray ty) Source #
Methods from :: Array ty -> UArray ty Source #
From (Maybe a) (Either () a) Source #
Methods from :: Maybe a -> Either () a Source #
(NatWithinBound Int n, PrimType ty) => From (BlockN n ty) (Array ty) Source #
Methods from :: BlockN n ty -> Array ty Source #
(NatWithinBound Int n, PrimType ty) => From (BlockN n ty) (UArray ty) Source #
Methods from :: BlockN n ty -> UArray ty Source #
From (BlockN n ty) (Block ty) Source #
Methods from :: BlockN n ty -> Block ty Source #
From (Either a b) (These a b) Source #
Methods from :: Either a b -> These a b Source #

type Into b a = From a b Source #

class TryFrom a b where Source #

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

Minimal complete definition

tryFrom

Methods

tryFrom :: a -> Maybe b Source #

Instances

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

type TryInto b a = TryFrom a b Source #

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

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 Source #

same as tryFrom but reversed