arrow-optics/arrow.optics/POptionalGetter/Companion

Companion

object Companion(source)

Functions

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@JvmStatic
fun <A> filter(predicate: (A) -> Boolean): OptionalGetter<A, A>

OptionalGetter to itself if it satisfies the predicate.

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fun <S> id(): PIso<S, S, S, S>
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operator fun <S, T, A> invoke(getOrModify: (source: S) -> Either<T, A>): POptionalGetter<S, T, A>

Invoke operator overload to create an OptionalGetter of type S with focus A.