Safe Haskell	Safe
Language	Haskell2010

Data.TypedEncoding

Contents

Classes
Combinators
Types
Existentially quantified version of Enc and basic combinators
Types and combinators for not verfied encoding
Basic Enc Combinators
Basic CheckedEnc Combinators
Other Basic Combinators

Description

Overview

This library allows to specify and work with types like

-- Base 64 encoded bytes (could represent binary files)
Enc '["enc-B64"] ByteString

-- Base 64 encoded UTF8 bytes
Enc '["enc-B64", "r-UTF8"] ByteString

-- Text that contains only ASCII characters
Enc '["r-ASCII"] Text

or to do transformations to strings like

upper :: Text -> Enc '["do-UPPER"] Text
upper = ...

or define precise types to use with toEncString and fromEncString

date :: Enc '["r-date-%d%b%Y:%X %Z"] Text
date = toEncString ...

Primary focus of type-encodings is to provide type safe

encoding
decoding
recreation (verification of existing payload)
type conversions between encoded types

of string-like data (ByteString, Text) that is subject of some encoding or formatting restrictions.

as well as

toEncString
fromEncString

conversions.

Groups of annotations

typed-encoding uses type annotations grouped into semantic categories

"r-" restriction / predicate

encoding is a partial identity
recreation is a partial identity (matching encoding)
decoding is identity

Examples: "r-UTF8", "r-ASCII"

"do-" transformations

encoding applies transformation to the string (could be partial)
decoding - typically none
recreation - typically none but, if present, verifies the payload has expected data (e.g. only uppercase chars for "do-UPPER")

Examples: "do-UPPER", "do-lower", "do-reverse"

"enc-" data encoding that is not "r-"

encoding applies encoding transformation to the string (could be partial)
decoding reverses the transformation (can be used as pure function)
recreation verifies that the payload has correctly encoded data

Examples: "enc-B64"

Usage

To use this library import this module and one or more instance module.

Here is list of instance modules available in typed-encoding library itself

This list is not intended to be exhaustive, rather separate libraries can provide instances for other encodings and transformations.

To implement a new encoding import this module and

Data.TypedEncoding.Instances.Support

Examples

Examples of how to use this library are included in

Examples.TypedEncoding

Synopsis

module Data.TypedEncoding.Internal.Class
module Data.TypedEncoding.Internal.Combinators
data Enc enc conf str
data CheckedEnc conf str
data EncodeEx where
- EncodeEx :: (Show a, KnownSymbol x) => Proxy x -> a -> EncodeEx
data RecreateEx where
- RecreateEx :: (Show e, KnownSymbol x) => Proxy x -> e -> RecreateEx
- RecreateExUnkStep :: Show e => e -> RecreateEx
data UnexpectedDecodeEx where
- UnexpectedDecodeEx :: (Show a, KnownSymbol x) => Proxy x -> a -> UnexpectedDecodeEx
type EncAnn = String
module Data.TypedEncoding.Internal.Types.SomeEnc
module Data.TypedEncoding.Internal.Types.UncheckedEnc
getPayload :: Enc enc conf str -> str
unsafeSetPayload :: conf -> str -> Enc enc conf str
fromEncoding :: Enc '[] conf str -> str
toEncoding :: conf -> str -> Enc '[] conf str
unsafeCheckedEnc :: [EncAnn] -> c -> s -> CheckedEnc c s
getCheckedPayload :: CheckedEnc conf str -> str
getCheckedEncPayload :: CheckedEnc conf str -> ([EncAnn], str)
toCheckedEnc :: forall xs c str. SymbolList xs => Enc xs c str -> CheckedEnc c str
fromCheckedEnc :: forall xs c str. SymbolList xs => CheckedEnc c str -> Maybe (Enc xs c str)
recreateErrUnknown :: Show e => e -> RecreateEx

Classes

module Data.TypedEncoding.Internal.Class

Combinators

module Data.TypedEncoding.Internal.Combinators

Types

data Enc enc conf str Source #

Instances

(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("r-UTF8" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods checkPrevF :: Enc ("r-UTF8" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("r-UTF8" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods checkPrevF :: Enc ("r-UTF8" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(IsStringR str, IsString str, RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c str :: Type) (Enc ("r-Word8-decimal" ': xs) c str) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.Common Methods checkPrevF :: Enc ("r-Word8-decimal" ': xs) c str -> f (Enc xs c str) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("do-UPPER" ': xs) c Text) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods checkPrevF :: Enc ("do-UPPER" ': xs) c Text -> f (Enc xs c Text) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("enc-B64" ': xs) c Text) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64" ': xs) c Text -> f (Enc xs c Text) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("enc-B64" ': xs) c Text) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64" ': xs) c Text -> f (Enc xs c Text) Source #
Applicative f => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("enc-B64-len" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64-len" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("enc-B64" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
Applicative f => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("enc-B64-len" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64-len" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("enc-B64" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods checkPrevF :: Enc ("enc-B64" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("r-ASCII" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods checkPrevF :: Enc ("r-ASCII" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c ByteString :: Type) (Enc ("r-ASCII" ': xs) c ByteString) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods checkPrevF :: Enc ("r-ASCII" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("r-ASCII" ': xs) c Text) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods checkPrevF :: Enc ("r-ASCII" ': xs) c Text -> f (Enc xs c Text) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("r-ASCII" ': xs) c Text) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods checkPrevF :: Enc ("r-ASCII" ': xs) c Text -> f (Enc xs c Text) Source #
(RecreateErr f, Applicative f) => RecreateF (f :: Type -> Type) (Enc xs c Text :: Type) (Enc ("my-sign" ': xs) c Text) Source #	Recreation allows effectful `f` to check for tampering with data. Implementation simply uses `implCheckPrevF` combinator on the recovery function.
Instance details Defined in Examples.TypedEncoding.DiySignEncoding Methods checkPrevF :: Enc ("my-sign" ': xs) c Text -> f (Enc xs c Text) Source #
(HasA SizeLimit c, Applicative f) => EncodeF (f :: Type -> Type) (Enc xs c ByteString) (Enc ("do-size-limit" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c ByteString -> f (Enc ("do-size-limit" ': xs) c ByteString) Source #
(HasA SizeLimit c, Applicative f) => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-size-limit" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-size-limit" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-reverse" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-reverse" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-reverse" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-reverse" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-Title" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-Title" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-Title" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-Title" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-lower" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-lower" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-lower" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-lower" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-UPPER" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-UPPER" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("do-UPPER" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Do.Sample Methods encodeF :: Enc xs c Text -> f (Enc ("do-UPPER" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("enc-B64" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods encodeF :: Enc xs c Text -> f (Enc ("enc-B64" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("enc-B64" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods encodeF :: Enc xs c Text -> f (Enc ("enc-B64" ': xs) c Text) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c ByteString) (Enc ("enc-B64" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods encodeF :: Enc xs c ByteString -> f (Enc ("enc-B64" ': xs) c ByteString) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c ByteString) (Enc ("enc-B64" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods encodeF :: Enc xs c ByteString -> f (Enc ("enc-B64" ': xs) c ByteString) Source #
Applicative f => EncodeF (f :: Type -> Type) (Enc xs c Text) (Enc ("my-sign" ': xs) c Text :: Type) Source #	Because encoding function is pure we can create instance of EncodeF that is polymorphic in effect `f`. This is done using `implTranP` combinator.
Instance details Defined in Examples.TypedEncoding.DiySignEncoding Methods encodeF :: Enc xs c Text -> f (Enc ("my-sign" ': xs) c Text) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-UTF8" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods decodeF :: Enc ("r-UTF8" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-UTF8" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods decodeF :: Enc ("r-UTF8" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(IsStringR str, IsString str, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("r-Word8-decimal" ': xs) c str) (Enc xs c str :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.Common Methods decodeF :: Enc ("r-Word8-decimal" ': xs) c str -> f (Enc xs c str) Source #
(UnexpectedDecodeErr f, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("enc-B64" ': xs) c Text) (Enc xs c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods decodeF :: Enc ("enc-B64" ': xs) c Text -> f (Enc xs c Text) Source #
(UnexpectedDecodeErr f, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("enc-B64" ': xs) c Text) (Enc xs c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods decodeF :: Enc ("enc-B64" ': xs) c Text -> f (Enc xs c Text) Source #
(UnexpectedDecodeErr f, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("enc-B64" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods decodeF :: Enc ("enc-B64" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
(UnexpectedDecodeErr f, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("enc-B64" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #	Effectful instance for corruption detection. This protocol is used, for example, in emails. It is a well known encoding and hackers will have no problem making undetectable changes, but error handling at this stage could verify that email was corrupted.
Instance details Defined in Data.TypedEncoding.Instances.Enc.Base64 Methods decodeF :: Enc ("enc-B64" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-ASCII" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods decodeF :: Enc ("r-ASCII" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-ASCII" ': xs) c ByteString) (Enc xs c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods decodeF :: Enc ("r-ASCII" ': xs) c ByteString -> f (Enc xs c ByteString) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-ASCII" ': xs) c Text) (Enc xs c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods decodeF :: Enc ("r-ASCII" ': xs) c Text -> f (Enc xs c Text) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-ASCII" ': xs) c Text) (Enc xs c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods decodeF :: Enc ("r-ASCII" ': xs) c Text -> f (Enc xs c Text) Source #
Applicative f => DecodeF (f :: Type -> Type) (Enc ("r-ASCII" ': xs) c Char) (Enc xs c Char :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods decodeF :: Enc ("r-ASCII" ': xs) c Char -> f (Enc xs c Char) Source #
(UnexpectedDecodeErr f, Applicative f) => DecodeF (f :: Type -> Type) (Enc ("my-sign" ': xs) c Text) (Enc xs c Text :: Type) Source #	Decoding allows effectful `f` to allow for troubleshooting and unsafe payload changes. Implementation simply uses `implDecodeF` combinator on the `asUnexpected` composed with decoding function. `UnexpectedDecodeErr` has Identity instance allowing for decoding that assumes errors are not possible. For debugging purposes or when unsafe changes to "my-sign" `Error UnexpectedDecodeEx` instance can be used.
Instance details Defined in Examples.TypedEncoding.DiySignEncoding Methods decodeF :: Enc ("my-sign" ': xs) c Text -> f (Enc xs c Text) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-UTF8" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-UTF8" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-UTF8" ': xs) c ByteString :: Type) Source #	UTF8 encodings are defined for ByteString only as that would not make much sense for Text `>>>` `encodeFAll . toEncoding () $ "\xc3\xb1" :: Either EncodeEx (Enc '["r-UTF8"] () B.ByteString)`Right (MkEnc Proxy () "\195\177") `>>>` `encodeFAll . toEncoding () $ "\xc3\x28" :: Either EncodeEx (Enc '["r-UTF8"] () B.ByteString)`Left (EncodeEx "r-UTF8" (Cannot decode byte '\xc3': Data.Text.Internal.Encoding.decodeUtf8: Invalid UTF-8 stream)) Following test uses `verEncoding` helper that checks that bytes are encoded as Right iff they are valid UTF8 bytes \(b :: B.ByteString) -> verEncoding b (fmap (fromEncoding . decodeAll . proxiedId (Proxy :: Proxy (Enc '["r-UTF8"] _ _))) . (encodeFAll :: _ -> Either EncodeEx _). toEncoding () $ b)
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-UTF8" ': xs) c ByteString) Source #
(IsStringR str, IsString str) => EncodeF (Either EncodeEx) (Enc xs c str) (Enc ("r-Word8-decimal" ': xs) c str :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.Common Methods encodeF :: Enc xs c str -> Either EncodeEx (Enc ("r-Word8-decimal" ': xs) c str) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-ASCII" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-ASCII" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-ASCII" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-ASCII" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c Text) (Enc ("r-ASCII" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Text -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Text) Source #
EncodeF (Either EncodeEx) (Enc xs c Text) (Enc ("r-ASCII" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Text -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Text) Source #
EncodeF (Either EncodeEx) (Enc xs c Char) (Enc ("r-ASCII" ': xs) c Char :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Char -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Char) Source #
(Eq conf, Eq str) => Eq (Enc enc conf str) Source #
Instance details Defined in Data.TypedEncoding.Internal.Types.Enc Methods (==) :: Enc enc conf str -> Enc enc conf str -> Bool # (/=) :: Enc enc conf str -> Enc enc conf str -> Bool #
(Show conf, Show str) => Show (Enc enc conf str) Source #
Instance details Defined in Data.TypedEncoding.Internal.Types.Enc Methods showsPrec :: Int -> Enc enc conf str -> ShowS # show :: Enc enc conf str -> String # showList :: [Enc enc conf str] -> ShowS #
(SymbolList xs, Show c, Displ str) => Displ (Enc xs c str) Source #	`>>>` `let disptest = unsafeSetPayload () "hello" :: Enc '["TEST"] () T.Text``>>>` `displ disptest`"MkEnc '[TEST] () (Text hello)"
Instance details Defined in Data.TypedEncoding.Internal.Types.Enc Methods displ :: Enc xs c str -> String Source #

data CheckedEnc conf str Source #

Represents some validated encoded string.

CheckedEnc is untyped version of Enc. CheckedEnc contains verified encoded data, encoding is visible at the value level only.

Instances

(Eq conf, Eq str) => Eq (CheckedEnc conf str) Source #
Instance details Defined in Data.TypedEncoding.Internal.Types.CheckedEnc Methods (==) :: CheckedEnc conf str -> CheckedEnc conf str -> Bool # (/=) :: CheckedEnc conf str -> CheckedEnc conf str -> Bool #
(Show conf, Show str) => Show (CheckedEnc conf str) Source #
Instance details Defined in Data.TypedEncoding.Internal.Types.CheckedEnc Methods showsPrec :: Int -> CheckedEnc conf str -> ShowS # show :: CheckedEnc conf str -> String # showList :: [CheckedEnc conf str] -> ShowS #
(Show c, Displ str) => Displ (CheckedEnc c str) Source #	`>>>` `displ $ unsafeCheckedEnc ["TEST"] () ("hello" :: T.Text)`"MkCheckedEnc [TEST] () (Text hello)"
Instance details Defined in Data.TypedEncoding.Internal.Types.CheckedEnc Methods displ :: CheckedEnc c str -> String Source #

data EncodeEx where Source #

Represents errors in encoding

Constructors

EncodeEx :: (Show a, KnownSymbol x) => Proxy x -> a -> EncodeEx

Instances

Show EncodeEx Source #
Instance details Defined in Data.TypedEncoding.Internal.Types Methods showsPrec :: Int -> EncodeEx -> ShowS # show :: EncodeEx -> String # showList :: [EncodeEx] -> ShowS #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-UTF8" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-UTF8" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-UTF8" ': xs) c ByteString :: Type) Source #	UTF8 encodings are defined for ByteString only as that would not make much sense for Text `>>>` `encodeFAll . toEncoding () $ "\xc3\xb1" :: Either EncodeEx (Enc '["r-UTF8"] () B.ByteString)`Right (MkEnc Proxy () "\195\177") `>>>` `encodeFAll . toEncoding () $ "\xc3\x28" :: Either EncodeEx (Enc '["r-UTF8"] () B.ByteString)`Left (EncodeEx "r-UTF8" (Cannot decode byte '\xc3': Data.Text.Internal.Encoding.decodeUtf8: Invalid UTF-8 stream)) Following test uses `verEncoding` helper that checks that bytes are encoded as Right iff they are valid UTF8 bytes \(b :: B.ByteString) -> verEncoding b (fmap (fromEncoding . decodeAll . proxiedId (Proxy :: Proxy (Enc '["r-UTF8"] _ _))) . (encodeFAll :: _ -> Either EncodeEx _). toEncoding () $ b)
Instance details Defined in Data.TypedEncoding.Instances.Restriction.UTF8 Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-UTF8" ': xs) c ByteString) Source #
(IsStringR str, IsString str) => EncodeF (Either EncodeEx) (Enc xs c str) (Enc ("r-Word8-decimal" ': xs) c str :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.Common Methods encodeF :: Enc xs c str -> Either EncodeEx (Enc ("r-Word8-decimal" ': xs) c str) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-ASCII" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-ASCII" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c ByteString) (Enc ("r-ASCII" ': xs) c ByteString :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c ByteString -> Either EncodeEx (Enc ("r-ASCII" ': xs) c ByteString) Source #
EncodeF (Either EncodeEx) (Enc xs c Text) (Enc ("r-ASCII" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Text -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Text) Source #
EncodeF (Either EncodeEx) (Enc xs c Text) (Enc ("r-ASCII" ': xs) c Text :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Text -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Text) Source #
EncodeF (Either EncodeEx) (Enc xs c Char) (Enc ("r-ASCII" ': xs) c Char :: Type) Source #
Instance details Defined in Data.TypedEncoding.Instances.Restriction.ASCII Methods encodeF :: Enc xs c Char -> Either EncodeEx (Enc ("r-ASCII" ': xs) c Char) Source #

data RecreateEx where Source #

Represents errors in recovery (recreation of encoded types).

Constructors

RecreateEx :: (Show e, KnownSymbol x) => Proxy x -> e -> RecreateEx
RecreateExUnkStep :: Show e => e -> RecreateEx

Instances

Show RecreateEx Source #
Instance details Defined in Data.TypedEncoding.Internal.Types Methods showsPrec :: Int -> RecreateEx -> ShowS # show :: RecreateEx -> String # showList :: [RecreateEx] -> ShowS #
RecreateErr (Either RecreateEx) Source #
Instance details Defined in Data.TypedEncoding.Internal.Class.Recreate Methods recoveryErr :: RecreateEx -> Either RecreateEx a Source #

data UnexpectedDecodeEx where Source #

Type safety over encodings makes decoding process safe. However failures are still possible due to bugs or unsafe payload modifications. UnexpectedDecodeEx represents such errors.

Constructors

UnexpectedDecodeEx :: (Show a, KnownSymbol x) => Proxy x -> a -> UnexpectedDecodeEx

Instances

Show UnexpectedDecodeEx Source #
Instance details Defined in Data.TypedEncoding.Internal.Types Methods showsPrec :: Int -> UnexpectedDecodeEx -> ShowS # show :: UnexpectedDecodeEx -> String # showList :: [UnexpectedDecodeEx] -> ShowS #
UnexpectedDecodeErr (Either UnexpectedDecodeEx) Source #
Instance details Defined in Data.TypedEncoding.Internal.Class.Decode Methods unexpectedDecodeErr :: UnexpectedDecodeEx -> Either UnexpectedDecodeEx a Source #