Alexey Stepanov
94 lines
2.6 KiB
Kotlin
94 lines
2.6 KiB
Kotlin
package kotlin.collections
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/** An iterator over a sequence of values of type `Byte`. */
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public abstract class ByteIterator {
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final fun next() = nextByte()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextByte(): Byte
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Char`. */
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public abstract class CharIterator {
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final fun next() = nextChar()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextChar(): Char
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Short`. */
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public abstract class ShortIterator {
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final fun next() = nextShort()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextShort(): Short
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Int`. */
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class IntIterator(first: Int, last: Int, val step: Int) {
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private var next = first
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private val finalElement = last
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private var hasNext: Boolean = if (step > 0) first <= last else first >= last
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final fun next() = nextInt ()
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fun hasNext(): Boolean = hasNext
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fun nextInt(): Int {
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val value = next
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if (value == finalElement) {
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hasNext = false
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}
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else {
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next += step
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}
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return value
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}
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}
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/** An iterator over a sequence of values of type `Long`. */
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public abstract class LongIterator {
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final fun next() = nextLong()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextLong(): Long
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Float`. */
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public abstract class FloatIterator {
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final fun next() = nextFloat()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextFloat(): Float
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Double`. */
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public abstract class DoubleIterator {
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final fun next() = nextDouble()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextDouble(): Double
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public abstract fun hasNext(): Boolean
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}
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/** An iterator over a sequence of values of type `Boolean`. */
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public abstract class BooleanIterator {
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final fun next() = nextBoolean()
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/** Returns the next value in the sequence without boxing. */
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public abstract fun nextBoolean(): Boolean
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public abstract fun hasNext(): Boolean
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} |