Tuple in Kotlin

tuple.kt

import java.io.Serializable

public data class Tuple4<out A, out B, out C, out D>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth)"
}

public data class Tuple5<out A, out B, out C, out D, out E>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth)"
}

public data class Tuple6<out A, out B, out C, out D, out E, out F>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E,
        public val sixth: F

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth, $sixth)"
}

public data class Tuple7<out A, out B, out C, out D, out E, out F, out G>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E,
        public val sixth: F,
        public val seventh: G

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth, $sixth, $seventh)"
}

public data class Tuple8<out A, out B, out C, out D, out E, out F, out G, out H>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E,
        public val sixth: F,
        public val seventh: G,
        public val eighth: H

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth, $sixth, $seventh, $eighth)"
}

public data class Tuple9<out A, out B, out C, out D, out E, out F, out G, out H, out I>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E,
        public val sixth: F,
        public val seventh: G,
        public val eighth: H,
        public val ninth: I

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth, $sixth, $seventh, $eighth, $ninth)"
}

public data class Tuple10<out A, out B, out C, out D, out E, out F, out G, out H, out I, out J>(
        public val first: A,
        public val second: B,
        public val third: C,
        public val fourth: D,
        public val fifth: E,
        public val sixth: F,
        public val seventh: G,
        public val eighth: H,
        public val ninth: I,
        public val tenth: J

) : Serializable {
    public override fun toString(): String = "($first, $second, $third, $fourth, $fifth, $sixth, $seventh, $eighth, $ninth, $tenth)"
}

public fun <T> Tuple4<T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth)
public fun <T> Tuple5<T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth)
public fun <T> Tuple6<T, T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth, sixth)
public fun <T> Tuple7<T, T, T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth, sixth, seventh)
public fun <T> Tuple8<T, T, T, T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth, sixth, seventh, eighth)
public fun <T> Tuple9<T, T, T, T, T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth, sixth, seventh, eighth, ninth)
public fun <T> Tuple10<T, T, T, T, T, T, T, T, T, T>.toList(): List<T> = listOf(first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth)