Anton Bannykh
107 lines
3.7 KiB
Kotlin
107 lines
3.7 KiB
Kotlin
/*
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* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
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* that can be found in the license/LICENSE.txt file.
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*/
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package kotlin
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/**
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* Represents a 16-bit Unicode character.
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* On the JVM, non-nullable values of this type are represented as values of the primitive type `char`.
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*/
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public class Char(value: Int) : Comparable<Char> {
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private val value = value and 0xFFFF
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/**
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* Compares this value with the specified value for order.
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* Returns zero if this value is equal to the specified other value, a negative number if it's less than other,
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* or a positive number if it's greater than other.
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*/
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public override fun compareTo(other: Char): Int = value - other.value
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/** Adds the other Int value to this value resulting a Char. */
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public operator fun plus(other: Int): Char = Char(value + other)
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/** Subtracts the other Char value from this value resulting an Int. */
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public operator fun minus(other: Char): Int = value - other.value
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/** Subtracts the other Int value from this value resulting a Char. */
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public operator fun minus(other: Int): Char = Char(value - other)
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/** Increments this value. */
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public operator fun inc(): Char = Char(value + 1)
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/** Decrements this value. */
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public operator fun dec(): Char = Char(value - 1)
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/** Creates a range from this value to the specified [other] value. */
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public operator fun rangeTo(other: Char): CharRange = null!! // TODO
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/** Returns the value of this character as a `Byte`. */
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public fun toByte(): Byte = value.toByte()
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/** Returns the value of this character as a `Char`. */
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public fun toChar(): Char = this
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/** Returns the value of this character as a `Short`. */
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public fun toShort(): Short = value.toShort()
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/** Returns the value of this character as a `Int`. */
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public fun toInt(): Int = value
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/** Returns the value of this character as a `Long`. */
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public fun toLong(): Long = value.toLong()
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/** Returns the value of this character as a `Float`. */
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public fun toFloat(): Float = value.toFloat()
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/** Returns the value of this character as a `Double`. */
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public fun toDouble(): Double = value.toDouble()
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override fun equals(other: Any?): Boolean = other is Char && value == other.value
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override fun hashCode(): Int = value
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override fun toString(): String {
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val value = value
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return js("String.fromCharCode(value)").unsafeCast<String>()
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}
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companion object {
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/**
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* The minimum value of a character code unit.
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*/
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@SinceKotlin("1.3")
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public const val MIN_VALUE: Char = '\u0000'
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/**
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* The maximum value of a character code unit.
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*/
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@SinceKotlin("1.3")
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public const val MAX_VALUE: Char = '\uFFFF'
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/**
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* The minimum value of a Unicode high-surrogate code unit.
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*/
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public const val MIN_HIGH_SURROGATE: Char = '\uD800'
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/**
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* The maximum value of a Unicode high-surrogate code unit.
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*/
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public const val MAX_HIGH_SURROGATE: Char = '\uDBFF'
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/**
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* The minimum value of a Unicode low-surrogate code unit.
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*/
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public const val MIN_LOW_SURROGATE: Char = '\uDC00'
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/**
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* The maximum value of a Unicode low-surrogate code unit.
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*/
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public const val MAX_LOW_SURROGATE: Char = '\uDFFF'
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/**
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* The minimum value of a Unicode surrogate code unit.
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*/
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public const val MIN_SURROGATE: Char = MIN_HIGH_SURROGATE
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/**
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* The maximum value of a Unicode surrogate code unit.
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*/
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public const val MAX_SURROGATE: Char = MAX_LOW_SURROGATE
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}
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} |