Package com.github.tonivade.purefun.instances

Interface OptionMonad

All Superinterfaces:

Applicative<Option<?>>, Functor<Option<?>>, Invariant<Option<?>>, Monad<Option<?>>, OptionPure, Selective<Option<?>>

All Known Subinterfaces:

OptionMonadError

interface OptionMonad
extends OptionPure, Monad<Option<?>>

Nested Class Summary

Nested classes/interfaces inherited from interface com.github.tonivade.purefun.typeclasses.Applicative

Applicative.Map2<F extends Kind<F,?>,A,B>, Applicative.Map3<F extends Kind<F,?>,A,B,C>, Applicative.Map4<F extends Kind<F,?>,A,B,C,D>, Applicative.Map5<F extends Kind<F,?>,A,B,C,D,E>

Field Summary

Fields

Modifier and Type	Field	Description
static final OptionMonad	INSTANCE

Method Summary

Modifier and Type	Method	Description
default <T, R> Kind<Option<?>,R>	flatMap(Kind<Option<?>,? extends T> value, Function1<? super T,? extends Kind<Option<?>,? extends R>> map)
private <T, R> Trampoline<Kind<Option<?>,R>>	loop(T value, Function1<T,? extends Kind<Option<?>,Either<T,R>>> map)
default <T, R> Kind<Option<?>,R>	tailRecM(T value, Function1<T,? extends Kind<Option<?>,Either<T,R>>> map)

Methods inherited from interface com.github.tonivade.purefun.typeclasses.Applicative

first, last, mapN, mapN, mapN, mapN, mapN, mapN, mapN, mapN, tuple, tuple, tuple, tuple

Methods inherited from interface com.github.tonivade.purefun.typeclasses.Functor

imap, lift

Methods inherited from interface com.github.tonivade.purefun.typeclasses.Monad

andThen, ap, flatten, map, select, use

Methods inherited from interface com.github.tonivade.purefun.instances.OptionPure

pure

Methods inherited from interface com.github.tonivade.purefun.typeclasses.Selective

allS, allS, andS, anyS, anyS, branch, ifS, orS, whenS

Field Details

INSTANCE

static final OptionMonad INSTANCE

Method Details

flatMap

default <T,
R> Kind<Option<?>,R> flatMap(Kind<Option<?>,? extends T> value,
 Function1<? super T,? extends Kind<Option<?>,? extends R>> map)

Specified by:

flatMap in interface Monad<Option<?>>

tailRecM

default <T,
R> Kind<Option<?>,R> tailRecM(T value,
 Function1<T,? extends Kind<Option<?>,Either<T,R>>> map)

Specified by:

tailRecM in interface Monad<Option<?>>

loop

private <T,
R> Trampoline<Kind<Option<?>,R>> loop(T value,
 Function1<T,? extends Kind<Option<?>,Either<T,R>>> map)