abstract suspend fun yield(value: T)
Yields a value to the Iterator being built.
import kotlin.test.*
import kotlin.coroutines.experimental.buildIterator
import kotlin.coroutines.experimental.buildSequence
fun main(args: Array<String>) {
//sampleStart
val sequence = buildSequence {
val start = 0
// yielding a single value
yield(start)
// yielding an iterable
yieldAll(1..5 step 2)
// yielding an infinite sequence
yieldAll(generateSequence(8) { it * 3 })
}
println(sequence.take(7).toList()) // [0, 1, 3, 5, 8, 24, 72]
//sampleEnd
}
import kotlin.test.*
import kotlin.coroutines.experimental.buildIterator
import kotlin.coroutines.experimental.buildSequence
fun main(args: Array<String>) {
//sampleStart
fun fibonacci() = buildSequence {
var terms = Pair(0, 1)
// this sequence is infinite
while(true) {
yield(terms.first)
terms = Pair(terms.second, terms.first + terms.second)
}
}
println(fibonacci().take(10).toList()) // [0, 1, 1, 2, 3, 5, 8, 13, 21, 34]
//sampleEnd
}
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Licensed under the Apache License, Version 2.0.
https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.coroutines.experimental/-sequence-builder/yield.html