commonMain.flow.internal.FlowExceptions.common.kt Maven / Gradle / Ivy

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Coroutines support libraries for Kotlin

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/*
 * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
 */

package kotlinx.coroutines.flow.internal

import kotlinx.coroutines.*

/**
 * This exception is thrown when operator need no more elements from the flow.
 * This exception should never escape outside of operator's implementation.
 */
internal expect class AbortFlowException() : CancellationException

/**
 * Exception used to cancel child of [scopedFlow] without cancelling the whole scope.
 */
internal expect class ChildCancelledException() : CancellationException

@Suppress("NOTHING_TO_INLINE")
@PublishedApi
internal inline fun checkIndexOverflow(index: Int): Int {
    if (index < 0) {
        throw ArithmeticException("Index overflow has happened")
    }
    return index
}