kotlin-stdlib/kotlin.coroutines/AbstractCoroutineContextElement

AbstractCoroutineContextElement

abstract class AbstractCoroutineContextElement(key: CoroutineContext.Key<*>) : CoroutineContext.Element

Base class for CoroutineContext.Element implementations.

Since Kotlin

1.3

Constructors

AbstractCoroutineContextElement

fun AbstractCoroutineContextElement(key: CoroutineContext.Key<*>)

Functions

fold

open override fun <R> fold(initial: R, operation: (R, CoroutineContext.Element) -> R): R

Accumulates entries of this context starting with initial value and applying operation from left to right to current accumulator value and each element of this context.

get

open operator override fun <E : CoroutineContext.Element> get(key: CoroutineContext.Key<E>): E?

Returns the element with the given key from this context or null.

minusKey

open override fun minusKey(key: CoroutineContext.Key<*>): CoroutineContext

Returns a context containing elements from this context, but without an element with the specified key.

plus

open operator fun plus(context: CoroutineContext): CoroutineContext

Returns a context containing elements from this context and elements from other context. The elements from this context with the same key as in the other one are dropped.

Properties

key

open override val key: CoroutineContext.Key<*>

A key of this coroutine context element.