The highest tagged major version is v2.

state

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v1.1.84 Latest Latest Go to latest Published: Dec 18, 2025 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 Ap[S, A, B any](ga State[S, A]) func(State[S, func(A) B]) State[S, B]
func Applicative[S, A, B any]() applicative.Applicative[A, B, State[S, A], State[S, B], State[S, func(A) B]]
func Chain[S any, FCT ~func(A) State[S, B], A, B any](f FCT) func(State[S, A]) State[S, B]
func ChainFirst[S any, FCT ~func(A) State[S, B], A, B any](f FCT) func(State[S, A]) State[S, A]
func Eq[S, A any](w EQ.Eq[S], a EQ.Eq[A]) func(S) EQ.Eq[State[S, A]]
func Evaluate[A, S any](s S) func(State[S, A]) A
func Execute[A, S any](s S) func(State[S, A]) S
func Flap[S, A, B any](a A) func(State[S, func(A) B]) State[S, B]
func FromStrictEquals[S, A comparable]() func(S) EQ.Eq[State[S, A]]
func Functor[S, A, B any]() functor.Functor[A, B, State[S, A], State[S, B]]
func Map[S any, FCT ~func(A) B, A, B any](f FCT) func(State[S, A]) State[S, B]
func Monad[S, A, B any]() monad.Monad[A, B, State[S, A], State[S, B], State[S, func(A) B]]
func Pointed[S, A any]() pointed.Pointed[A, State[S, A]]
type State

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Ap ¶

func Ap[S, A, B any](ga State[S, A]) func(State[S, func(A) B]) State[S, B]

func Applicative ¶

func Applicative[S, A, B any]() applicative.Applicative[A, B, State[S, A], State[S, B], State[S, func(A) B]]

Applicative implements the applicative operations for State

func Chain ¶

func Chain[S any, FCT ~func(A) State[S, B], A, B any](f FCT) func(State[S, A]) State[S, B]

func ChainFirst ¶

func ChainFirst[S any, FCT ~func(A) State[S, B], A, B any](f FCT) func(State[S, A]) State[S, A]

func Eq ¶

func Eq[S, A any](w EQ.Eq[S], a EQ.Eq[A]) func(S) EQ.Eq[State[S, A]]

Constructs an equal predicate for a State

func Evaluate ¶

func Evaluate[A, S any](s S) func(State[S, A]) A

func Execute ¶

func Execute[A, S any](s S) func(State[S, A]) S

func Flap ¶

func Flap[S, A, B any](a A) func(State[S, func(A) B]) State[S, B]

func FromStrictEquals ¶

func FromStrictEquals[S, A comparable]() func(S) EQ.Eq[State[S, A]]

FromStrictEquals constructs an [EQ.Eq] from the canonical comparison function

func Functor ¶

func Functor[S, A, B any]() functor.Functor[A, B, State[S, A], State[S, B]]

Functor implements the pointed operations for State

func Map ¶

func Map[S any, FCT ~func(A) B, A, B any](f FCT) func(State[S, A]) State[S, B]

func Monad ¶

func Monad[S, A, B any]() monad.Monad[A, B, State[S, A], State[S, B], State[S, func(A) B]]

Monad implements the monadic operations for State

func Pointed ¶

func Pointed[S, A any]() pointed.Pointed[A, State[S, A]]

Pointed implements the pointed operations for State

Types ¶

type State ¶

type State[S, A any] R.Reader[S, P.Pair[A, S]]

State represents an operation on top of a current State that produces a value and a new State

func Flatten ¶

func Flatten[S, A any](mma State[S, State[S, A]]) State[S, A]

func Get ¶

func Get[S any]() State[S, S]

func Gets ¶

func Gets[FCT ~func(S) A, A, S any](f FCT) State[S, A]

func Modify ¶

func Modify[FCT ~func(S) S, S any](f FCT) State[S, any]

func MonadAp ¶

func MonadAp[S, A, B any](fab State[S, func(A) B], fa State[S, A]) State[S, B]

func MonadChain ¶

func MonadChain[S any, FCT ~func(A) State[S, B], A, B any](fa State[S, A], f FCT) State[S, B]

func MonadChainFirst ¶

func MonadChainFirst[S any, FCT ~func(A) State[S, B], A, B any](ma State[S, A], f FCT) State[S, A]

func MonadFlap ¶

func MonadFlap[FAB ~func(A) B, S, A, B any](fab State[S, FAB], a A) State[S, B]

func MonadMap ¶

func MonadMap[S any, FCT ~func(A) B, A, B any](fa State[S, A], f FCT) State[S, B]

func Of ¶

func Of[S, A any](a A) State[S, A]

func Put ¶

func Put[S any]() State[S, any]

Source Files ¶

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Directories ¶

Path	Synopsis
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