//arrow-core/arrow.core/Either/Companion

Companion

common object Companion

Functions

Name	Summary
catch	common @JvmStatic @JvmName(name = “tryCatch”) inline fun <R> catch(f: () -> R): Either<Throwable, R> @JvmStatic @JvmName(name = “tryCatch”) inline fun <L, R> catch(fe: (Throwable) -> L, f: () -> R): Either<L, R>
catchAndFlatten	common @JvmStatic @JvmName(name = “tryCatchAndFlatten”) inline fun <R> catchAndFlatten(f: () -> Either<Throwable, R>): Either<Throwable, R>
conditionally	common @JvmStatic inline fun <L, R> conditionally(test: Boolean, ifFalse: () -> L, ifTrue: () -> R): Either<L, R> Will create an Either from the result of evaluating the first parameter using the functions provided on second and third parameters. Second parameter represents function for creating an Left in case of a false result of evaluation and third parameter will be used to create a Right in case of a true result.
fromNullable	common @JvmStatic fun <A> fromNullable(a: A?): Either<Unit, A>
lift	common @JvmStatic fun <A, B, C> lift(f: (B) -> C): (Either<A, B>) -> Either<A, C> Lifts a function `(B) -> C` to the Either structure returning a polymorphic function that can be applied over all Either values in the shape of Either common @JvmStatic fun <A, B, C, D> lift(fa: (A) -> C, fb: (B) -> D): (Either<A, B>) -> Either<C, D>
resolve	common @JvmStatic inline fun <E, A, B> resolve(f: () -> Either<E, A>, success: (A) -> Either<Throwable, B>, error: (E) -> Either<Throwable, B>, throwable: (throwable: Throwable) -> Either<Throwable, B>, unrecoverableState: (throwable: Throwable) -> Either<Throwable, Unit>): B The resolve function can resolve any suspended function that yields an Either into one type of value.