generic

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 Go to latest Published: Jul 19, 2023 License: Apache-2.0 Imports: 20 Imported by: 1

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func Ap 

func Ap[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GAB ~func() ET.Either[E, func(A) B], E, A, B any](ma GA) func(GAB) GB

func ApFirst 

func ApFirst[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GBA ~func() ET.Either[E, func(B) A], E, A, B any](second GB) func(GA) GA

ApFirst combines two effectful actions, keeping only the result of the first.

func ApSecond 

func ApSecond[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GBB ~func() ET.Either[E, func(B) B], E, A, B any](second GB) func(GA) GB

ApSecond combines two effectful actions, keeping only the result of the second.

func BiMap 

func BiMap[GA ~func() ET.Either[E1, A], GB ~func() ET.Either[E2, B], E1, E2, A, B any](f func(E1) E2, g func(A) B) func(GA) GB

BiMap maps a pair of functions over the two type arguments of the bifunctor.

func Bracket 

func Bracket[
	GA ~func() ET.Either[E, A],
	GB ~func() ET.Either[E, B],
	GANY ~func() ET.Either[E, ANY],
	E, A, B, ANY any](

	acquire GA,
	use func(A) GB,
	release func(A, ET.Either[E, B]) GANY,
) GB

Bracket makes sure that a resource is cleaned up in the event of an error. The release action is called regardless of whether the body action returns and error or not.

func Chain 

func Chain[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](f func(A) GB) func(GA) GB

func ChainEitherK 

func ChainEitherK[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](f func(A) ET.Either[E, B]) func(GA) GB

func ChainFirst 

func ChainFirst[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](f func(A) GB) func(GA) GA

ChainFirst runs the monad returned by the function but returns the result of the original monad

func ChainFirstIOK 

func ChainFirstIOK[GA ~func() ET.Either[E, A], GIOB ~func() B, E, A, B any](f func(A) GIOB) func(GA) GA

ChainFirstIOK runs the monad returned by the function but returns the result of the original monad

func ChainIOK 

func ChainIOK[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GR ~func() B, E, A, B any](f func(A) GR) func(GA) GB

func ChainOptionK 

func ChainOptionK[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](onNone func() E) func(func(A) O.Option[B]) func(GA) GB

func ChainTo 

func ChainTo[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](fb GB) func(GA) GB

func Command 

func Command[GA ~func() ET.Either[error, exec.CommandOutput]](name string, args []string, in []byte) GA

Command executes a command

func Defer 

func Defer[GEA ~func() ET.Either[E, A], E, A any](gen func() GEA) GEA

Defer creates an IO by creating a brand new IO via a generator function, each time

func Delay 

func Delay[GA ~func() ET.Either[E, A], E, A any](delay time.Duration) func(GA) GA

Delay creates an operation that passes in the value after some delay

func Eitherize0 

func Eitherize0[GEA ~func() ET.Either[error, A], GA ~func() (A, error), A any](f GA) func() GEA

func Eitherize1 

func Eitherize1[GEA ~func() ET.Either[error, A], GA ~func(t1 T1) (A, error), T1, A any](f GA) func(T1) GEA

func Eitherize2 

func Eitherize2[GEA ~func() ET.Either[error, A], GA ~func(t1 T1, t2 T2) (A, error), T1, T2, A any](f GA) func(T1, T2) GEA

func Eitherize3 

func Eitherize3[GEA ~func() ET.Either[error, A], GA ~func(t1 T1, t2 T2, t3 T3) (A, error), T1, T2, T3, A any](f GA) func(T1, T2, T3) GEA

func Eitherize4 

func Eitherize4[GEA ~func() ET.Either[error, A], GA ~func(t1 T1, t2 T2, t3 T3, t4 T4) (A, error), T1, T2, T3, T4, A any](f GA) func(T1, T2, T3, T4) GEA

func Eq 

func Eq[GA ~func() ET.Either[E, A], E, A any](eq EQ.Eq[ET.Either[E, A]]) EQ.Eq[GA]

Eq implements the equals predicate for values contained in the IOEither monad

func Flatten 

func Flatten[GA ~func() ET.Either[E, A], GAA ~func() ET.Either[E, GA], E, A any](mma GAA) GA

func Fold 

func Fold[GA ~func() ET.Either[E, A], GB ~func() B, E, A, B any](onLeft func(E) GB, onRight func(A) GB) func(GA) GB

Fold convers an IOEither into an IO

func FromEither 

func FromEither[GA ~func() ET.Either[E, A], E, A any](e ET.Either[E, A]) GA

func FromIO 

func FromIO[GA ~func() ET.Either[E, A], GR ~func() A, E, A any](mr GR) GA

func FromImpure 

func FromImpure[GA ~func() ET.Either[E, any], IMP ~func(), E any](f IMP) GA

FromImpure converts a side effect without a return value into a side effect that returns any

func FromOption 

func FromOption[GA ~func() ET.Either[E, A], E, A any](onNone func() E) func(o O.Option[A]) GA

func FromStrictEquals 

func FromStrictEquals[GA ~func() ET.Either[E, A], E, A comparable]() EQ.Eq[GA]

FromStrictEquals constructs an `Eq` from the canonical comparison function

func GetOrElse 

func GetOrElse[GA ~func() ET.Either[E, A], GB ~func() A, E, A any](onLeft func(E) GB) func(GA) GB

GetOrElse extracts the value or maps the error

func Left 

func Left[GA ~func() ET.Either[E, A], E, A any](l E) GA

func LeftIO 

func LeftIO[GA ~func() ET.Either[E, A], GE ~func() E, E, A any](ml GE) GA

func MakeIO 

func MakeIO[GA ~func() ET.Either[E, A], E, A any](f GA) GA

func Map 

func Map[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](f func(A) B) func(GA) GB

func MapLeft 

func MapLeft[GA1 ~func() ET.Either[E1, A], GA2 ~func() ET.Either[E2, A], E1, E2, A any](f func(E1) E2) func(GA1) GA2

func MapTo 

func MapTo[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](b B) func(GA) GB

func Memoize 

func Memoize[GA ~func() ET.Either[E, A], E, A any](ma GA) GA

Memoize computes the value of the provided IO monad lazily but exactly once

func MonadAp 

func MonadAp[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GAB ~func() ET.Either[E, func(A) B], E, A, B any](mab GAB, ma GA) GB

func MonadApFirst 

func MonadApFirst[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GBA ~func() ET.Either[E, func(B) A], E, A, B any](first GA, second GB) GA

MonadApFirst combines two effectful actions, keeping only the result of the first.

func MonadApSecond 

func MonadApSecond[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GBB ~func() ET.Either[E, func(B) B], E, A, B any](first GA, second GB) GB

MonadApSecond combines two effectful actions, keeping only the result of the second.

func MonadBiMap 

func MonadBiMap[GA ~func() ET.Either[E1, A], GB ~func() ET.Either[E2, B], E1, E2, A, B any](fa GA, f func(E1) E2, g func(A) B) GB

func MonadChain 

func MonadChain[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](fa GA, f func(A) GB) GB

func MonadChainEitherK 

func MonadChainEitherK[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](ma GA, f func(A) ET.Either[E, B]) GB

func MonadChainFirst 

func MonadChainFirst[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](ma GA, f func(A) GB) GA

MonadChainFirst runs the monad returned by the function but returns the result of the original monad

func MonadChainFirstIOK 

func MonadChainFirstIOK[GA ~func() ET.Either[E, A], GIOB ~func() B, E, A, B any](first GA, f func(A) GIOB) GA

MonadChainFirstIOK runs the monad returned by the function but returns the result of the original monad

func MonadChainIOK 

func MonadChainIOK[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GR ~func() B, E, A, B any](ma GA, f func(A) GR) GB

func MonadChainTo 

func MonadChainTo[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](fa GA, fb GB) GB

func MonadFold 

func MonadFold[GA ~func() ET.Either[E, A], GB ~func() B, E, A, B any](ma GA, onLeft func(E) GB, onRight func(A) GB) GB

func MonadMap 

func MonadMap[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](fa GA, f func(A) B) GB

func MonadMapLeft 

func MonadMapLeft[GA1 ~func() ET.Either[E1, A], GA2 ~func() ET.Either[E2, A], E1, E2, A any](fa GA1, f func(E1) E2) GA2

func MonadMapTo 

func MonadMapTo[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], E, A, B any](fa GA, b B) GB

func MonadOf 

func MonadOf[GA ~func() ET.Either[E, A], E, A any](r A) GA

func MonadTraverseArray 

func MonadTraverseArray[GB ~func() ET.Either[E, B], GBS ~func() ET.Either[E, BBS], AAS ~[]A, BBS ~[]B, E, A, B any](tas AAS, f func(A) GB) GBS

MonadTraverseArray transforms an array

func MonadTraverseRecord 

func MonadTraverseRecord[GB ~func() ET.Either[E, B], GBS ~func() ET.Either[E, BBS], AAS ~map[K]A, BBS ~map[K]B, K comparable, E, A, B any](tas AAS, f func(A) GB) GBS

MonadTraverseRecord transforms an array

func Of 

func Of[GA ~func() ET.Either[E, A], E, A any](r A) GA

func Retrying 

func Retrying[GA ~func() ET.Either[E, A], E, A any](
	policy R.RetryPolicy,
	action func(R.RetryStatus) GA,
	check func(ET.Either[E, A]) bool,
) GA

Retry combinator for actions that don't raise exceptions, but signal in their type the outcome has failed. Examples are the `Option`, `Either` and `EitherT` monads.

policy - refers to the retry policy action - converts a status into an operation to be executed check - checks if the result of the action needs to be retried 

func Right[GA ~func() ET.Either[E, A], E, A any](r A) GA

func RightIO 

func RightIO[GA ~func() ET.Either[E, A], GR ~func() A, E, A any](mr GR) GA

func SequenceArray 

func SequenceArray[GA ~func() ET.Either[E, A], GAS ~func() ET.Either[E, AAS], AAS ~[]A, GAAS ~[]GA, E, A any](tas GAAS) GAS

SequenceArray converts a homogeneous sequence of either into an either of sequence

func SequenceRecord 

func SequenceRecord[GA ~func() ET.Either[E, A], GAS ~func() ET.Either[E, AAS], AAS ~map[K]A, GAAS ~map[K]GA, K comparable, E, A any](tas GAAS) GAS

SequenceRecord converts a homogeneous sequence of either into an either of sequence

func SequenceT1 

func SequenceT1[GA ~func() ET.Either[E, A], GTA ~func() ET.Either[E, T.Tuple1[A]], E, A any](a GA) GTA

func SequenceT2 

func SequenceT2[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GTAB ~func() ET.Either[E, T.Tuple2[A, B]], E, A, B any](a GA, b GB) GTAB

func SequenceT3 

func SequenceT3[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GC ~func() ET.Either[E, C], GTABC ~func() ET.Either[E, T.Tuple3[A, B, C]], E, A, B, C any](a GA, b GB, c GC) GTABC

func SequenceT4 

func SequenceT4[GA ~func() ET.Either[E, A], GB ~func() ET.Either[E, B], GC ~func() ET.Either[E, C], GD ~func() ET.Either[E, D], GTABCD ~func() ET.Either[E, T.Tuple4[A, B, C, D]], E, A, B, C, D any](a GA, b GB, c GC, d GD) GTABCD

func Swap 

func Swap[GEA ~func() ET.Either[E, A], GAE ~func() ET.Either[A, E], E, A any](val GEA) GAE

Swap changes the order of type parameters

func TraverseArray 

func TraverseArray[GB ~func() ET.Either[E, B], GBS ~func() ET.Either[E, BBS], AAS ~[]A, BBS ~[]B, E, A, B any](f func(A) GB) func(AAS) GBS

TraverseArray transforms an array

func TraverseRecord 

func TraverseRecord[GB ~func() ET.Either[E, B], GBS ~func() ET.Either[E, BBS], AAS ~map[K]A, BBS ~map[K]B, K comparable, E, A, B any](f func(A) GB) func(AAS) GBS

TraverseRecord transforms an array

func TryCatch 

func TryCatch[GA ~func() ET.Either[E, A], E, A any](f func() (A, error), onThrow func(error) E) GA

func TryCatchError 

func TryCatchError[GA ~func() ET.Either[error, A], A any](f func() (A, error)) GA

func Uneitherize0 

func Uneitherize0[GEA ~func() ET.Either[error, A], GTA ~func() GEA, A any](f GTA) func() (A, error)

func Uneitherize1 

func Uneitherize1[GEA ~func() ET.Either[error, A], GTA ~func(t1 T1) GEA, T1, A any](f GTA) func(T1) (A, error)

func Uneitherize2 

func Uneitherize2[GEA ~func() ET.Either[error, A], GTA ~func(t1 T1, t2 T2) GEA, T1, T2, A any](f GTA) func(T1, T2) (A, error)

func Uneitherize3 

func Uneitherize3[GEA ~func() ET.Either[error, A], GTA ~func(t1 T1, t2 T2, t3 T3) GEA, T1, T2, T3, A any](f GTA) func(T1, T2, T3) (A, error)

func Uneitherize4 

func Uneitherize4[GEA ~func() ET.Either[error, A], GTA ~func(t1 T1, t2 T2, t3 T3, t4 T4) GEA, T1, T2, T3, T4, A any](f GTA) func(T1, T2, T3, T4) (A, error)

func WithResource 

func WithResource[
	GA ~func() ET.Either[E, A],
	GR ~func() ET.Either[E, R],
	GANY ~func() ET.Either[E, ANY],
	E, R, A, ANY any](onCreate GR, onRelease func(R) GANY) func(func(R) GA) GA

WithResource constructs a function that creates a resource, then operates on it and then releases the resource

Types

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