kotlin.ProgressionIterators.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
* that can be found in the license/LICENSE.txt file.
*/
// Auto-generated file. DO NOT EDIT!
package kotlin.ranges
/**
* An iterator over a progression of values of type `Char`.
* @property step the number by which the value is incremented on each step.
*/
internal class CharProgressionIterator(first: Char, last: Char, val step: Int) : CharIterator() {
private val finalElement = last.toInt()
private var hasNext: Boolean = if (step > 0) first <= last else first >= last
private var next = if (hasNext) first.toInt() else finalElement
override fun hasNext(): Boolean = hasNext
override fun nextChar(): Char {
val value = next
if (value == finalElement) {
if (!hasNext) throw kotlin.NoSuchElementException()
hasNext = false
}
else {
next += step
}
return value.toChar()
}
}
/**
* An iterator over a progression of values of type `Int`.
* @property step the number by which the value is incremented on each step.
*/
internal class IntProgressionIterator(first: Int, last: Int, val step: Int) : IntIterator() {
private val finalElement = last
private var hasNext: Boolean = if (step > 0) first <= last else first >= last
private var next = if (hasNext) first else finalElement
override fun hasNext(): Boolean = hasNext
override fun nextInt(): Int {
val value = next
if (value == finalElement) {
if (!hasNext) throw kotlin.NoSuchElementException()
hasNext = false
}
else {
next += step
}
return value
}
}
/**
* An iterator over a progression of values of type `Long`.
* @property step the number by which the value is incremented on each step.
*/
internal class LongProgressionIterator(first: Long, last: Long, val step: Long) : LongIterator() {
private val finalElement = last
private var hasNext: Boolean = if (step > 0) first <= last else first >= last
private var next = if (hasNext) first else finalElement
override fun hasNext(): Boolean = hasNext
override fun nextLong(): Long {
val value = next
if (value == finalElement) {
if (!hasNext) throw kotlin.NoSuchElementException()
hasNext = false
}
else {
next += step
}
return value
}
}