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v2.1.21 Latest Latest Go to latest Published: Jan 23, 2026 License: Apache-2.0 Imports: 8 Imported by: 0

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github.com/IBM/fp-go

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Documentation ¶

Index ¶

func After[GA ~func() O.Option[A], A any](timestamp time.Time) func(GA) GA
func Alt[LAZY ~func() GIOA, GIOA ~func() O.Option[A], A any](second LAZY) func(GIOA) GIOA
func Ap[GB ~func() O.Option[B], GAB ~func() O.Option[func(A) B], ...](ma GA) func(GAB) GB
func Chain[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) GB) func(GA) GB
func ChainFirst[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) GB) func(GA) GA
func ChainFirstIOK[GA ~func() O.Option[A], GIOB ~func() B, A, B any](f func(A) GIOB) func(GA) GA
func ChainIOK[GA ~func() O.Option[A], GB ~func() O.Option[B], GR ~func() B, A, B any](f func(A) GR) func(GA) GB
func ChainOptionK[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) O.Option[B]) func(GA) GB
func Defer[GA ~func() O.Option[A], A any](gen func() GA) GA
func Delay[GA ~func() O.Option[A], A any](delay time.Duration) func(GA) GA
func Flatten[GA ~func() O.Option[A], GAA ~func() O.Option[GA], A any](mma GAA) GA
func Fold[GA ~func() O.Option[A], GB ~func() B, A, B any](onNone func() GB, onSome func(A) GB) func(GA) GB
func FromEither[GA ~func() O.Option[A], E, A any](e ET.Either[E, A]) GA
func FromIO[GA ~func() O.Option[A], GR ~func() A, A any](mr GR) GA
func FromOption[GA ~func() O.Option[A], A any](o O.Option[A]) GA
func MakeIO[GA ~func() O.Option[A], A any](f GA) GA
func Map[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) B) func(GA) GB
func Memoize[GA ~func() O.Option[A], A any](ma GA) GA
func MonadAlt[LAZY ~func() GIOA, GIOA ~func() O.Option[A], A any](first GIOA, second LAZY) GIOA
func MonadAp[GB ~func() O.Option[B], GAB ~func() O.Option[func(A) B], ...](mab GAB, ma GA) GB
func MonadChain[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](fa GA, f func(A) GB) GB
func MonadChainFirst[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](ma GA, f func(A) GB) GA
func MonadChainFirstIOK[GA ~func() O.Option[A], GIOB ~func() B, A, B any](first GA, f func(A) GIOB) GA
func MonadChainIOK[GA ~func() O.Option[A], GB ~func() O.Option[B], GR ~func() B, A, B any](ma GA, f func(A) GR) GB
func MonadChainOptionK[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](ma GA, f func(A) O.Option[B]) GB
func MonadMap[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](fa GA, f func(A) B) GB
func MonadOf[GA ~func() O.Option[A], A any](r A) GA
func None[GA ~func() O.Option[A], A any]() GA
func Of[GA ~func() O.Option[A], A any](r A) GA
func Optionize0[GA ~func() O.Option[A], A any](f func() (A, bool)) func() GA
func Optionize1[GA ~func() O.Option[A], T1, A any](f func(t1 T1) (A, bool)) func(T1) GA
func Optionize2[GA ~func() O.Option[A], T1, T2, A any](f func(t1 T1, t2 T2) (A, bool)) func(T1, T2) GA
func Optionize3[GA ~func() O.Option[A], T1, T2, T3, A any](f func(t1 T1, t2 T2, t3 T3) (A, bool)) func(T1, T2, T3) GA
func Optionize4[GA ~func() O.Option[A], T1, T2, T3, T4, A any](f func(t1 T1, t2 T2, t3 T3, t4 T4) (A, bool)) func(T1, T2, T3, T4) GA
func Some[GA ~func() O.Option[A], A any](r A) GA

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func After ¶

func After[GA ~func() O.Option[A], A any](timestamp time.Time) func(GA) GA

After creates an operation that passes after the given time.Time

func Alt ¶

func Alt[LAZY ~func() GIOA, GIOA ~func() O.Option[A], A any](second LAZY) func(GIOA) GIOA

func Ap ¶

func Ap[GB ~func() O.Option[B], GAB ~func() O.Option[func(A) B], GA ~func() O.Option[A], A, B any](ma GA) func(GAB) GB

func Chain ¶

func Chain[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) GB) func(GA) GB

func ChainFirst ¶

func ChainFirst[GA ~func() O.Option[A], GB ~func() O.Option[B], 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() O.Option[A], GIOB ~func() B, 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() O.Option[A], GB ~func() O.Option[B], GR ~func() B, A, B any](f func(A) GR) func(GA) GB

func ChainOptionK ¶

func ChainOptionK[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) O.Option[B]) func(GA) GB

func Defer ¶

func Defer[GA ~func() O.Option[A], A any](gen func() GA) GA

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

func Delay ¶

func Delay[GA ~func() O.Option[A], A any](delay time.Duration) func(GA) GA

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

func Flatten ¶

func Flatten[GA ~func() O.Option[A], GAA ~func() O.Option[GA], A any](mma GAA) GA

func Fold ¶

func Fold[GA ~func() O.Option[A], GB ~func() B, A, B any](onNone func() GB, onSome func(A) GB) func(GA) GB

Fold convers an IOOption into an IO

func FromEither ¶

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

func FromIO ¶

func FromIO[GA ~func() O.Option[A], GR ~func() A, A any](mr GR) GA

func FromOption ¶

func FromOption[GA ~func() O.Option[A], A any](o O.Option[A]) GA

func MakeIO ¶

func MakeIO[GA ~func() O.Option[A], A any](f GA) GA

func Map ¶

func Map[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](f func(A) B) func(GA) GB

func Memoize ¶

func Memoize[GA ~func() O.Option[A], A any](ma GA) GA

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

func MonadAlt ¶

func MonadAlt[LAZY ~func() GIOA, GIOA ~func() O.Option[A], A any](first GIOA, second LAZY) GIOA

func MonadAp ¶

func MonadAp[GB ~func() O.Option[B], GAB ~func() O.Option[func(A) B], GA ~func() O.Option[A], A, B any](mab GAB, ma GA) GB

func MonadChain ¶

func MonadChain[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](fa GA, f func(A) GB) GB

func MonadChainFirst ¶

func MonadChainFirst[GA ~func() O.Option[A], GB ~func() O.Option[B], 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() O.Option[A], GIOB ~func() B, 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() O.Option[A], GB ~func() O.Option[B], GR ~func() B, A, B any](ma GA, f func(A) GR) GB

func MonadChainOptionK ¶

func MonadChainOptionK[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](ma GA, f func(A) O.Option[B]) GB

func MonadMap ¶

func MonadMap[GA ~func() O.Option[A], GB ~func() O.Option[B], A, B any](fa GA, f func(A) B) GB

func MonadOf ¶

func MonadOf[GA ~func() O.Option[A], A any](r A) GA

func None ¶

func None[GA ~func() O.Option[A], A any]() GA

func Of ¶

func Of[GA ~func() O.Option[A], A any](r A) GA

func Optionize0 ¶

func Optionize0[GA ~func() O.Option[A], A any](f func() (A, bool)) func() GA

func Optionize1 ¶

func Optionize1[GA ~func() O.Option[A], T1, A any](f func(t1 T1) (A, bool)) func(T1) GA

func Optionize2 ¶

func Optionize2[GA ~func() O.Option[A], T1, T2, A any](f func(t1 T1, t2 T2) (A, bool)) func(T1, T2) GA

func Optionize3 ¶

func Optionize3[GA ~func() O.Option[A], T1, T2, T3, A any](f func(t1 T1, t2 T2, t3 T3) (A, bool)) func(T1, T2, T3) GA

func Optionize4 ¶

func Optionize4[GA ~func() O.Option[A], T1, T2, T3, T4, A any](f func(t1 T1, t2 T2, t3 T3, t4 T4) (A, bool)) func(T1, T2, T3, T4) GA

func Some ¶

func Some[GA ~func() O.Option[A], A any](r A) GA

Types ¶

This section is empty.

Source Files ¶

View all Source files

iooption.go

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