| /* |
| * Copyright 2016-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license. |
| */ |
| |
| // This file was automatically generated from coroutines-guide.md by Knit tool. Do not edit. |
| package kotlinx.coroutines.guide.channel05 |
| |
| import kotlinx.coroutines.* |
| import kotlinx.coroutines.channels.* |
| |
| fun main() = runBlocking { |
| var cur = numbersFrom(2) |
| for (i in 1..10) { |
| val prime = cur.receive() |
| println(prime) |
| cur = filter(cur, prime) |
| } |
| coroutineContext.cancelChildren() // cancel all children to let main finish |
| } |
| |
| fun CoroutineScope.numbersFrom(start: Int) = produce<Int> { |
| var x = start |
| while (true) send(x++) // infinite stream of integers from start |
| } |
| |
| fun CoroutineScope.filter(numbers: ReceiveChannel<Int>, prime: Int) = produce<Int> { |
| for (x in numbers) if (x % prime != 0) send(x) |
| } |