kotlin.ProgressionIterators.kt Maven / Gradle / Ivy
/*
* Copyright 2010-2017 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// 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
}
}