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BenRomdhaneOmarBenRomdhaneOmar
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Merge pull request #44
triple tuples data structure
2 parents 8a9d9f1 + a6f0473 commit 7cc2e80

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  • library/src
    • commonMain/kotlin/com/benromdhane/omar/offroadsoft/monad/tuple
    • commonTest/kotlin/com/benromdhane/omar/offroadsoft/monad/tuple

‎library/src/commonMain/kotlin/com/benromdhane/omar/offroadsoft/monad/tuple/Triple.kt‎

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package com.benromdhane.omar.offroadsoft.monad.tuple
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data class Triple<FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any>(
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val firstElement: FIRST_ELEMENT,
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val secondElement: SECOND_ELEMENT,
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val thirdElement: THIRD_ELEMENT
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) {
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fun <NEW_FIRST_ELEMENT : Any> mapFirst(
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mapper: (FIRST_ELEMENT) -> NEW_FIRST_ELEMENT
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) =
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Triple(
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mapper(this.firstElement),
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this.secondElement,
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this.thirdElement
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)
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fun <NEW_SECOND_ELEMENT : Any> mapSecond(
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mapper: (SECOND_ELEMENT) -> NEW_SECOND_ELEMENT
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) =
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Triple(
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this.firstElement,
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mapper(this.secondElement),
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this.thirdElement
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)
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fun <NEW_THIRD_ELEMENT : Any> mapThird(
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mapper: (THIRD_ELEMENT) -> NEW_THIRD_ELEMENT
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) =
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Triple(
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this.firstElement,
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this.secondElement,
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mapper(this.thirdElement)
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)
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fun switchFirstAndSecondElements() =
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Triple(
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this.secondElement,
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this.firstElement,
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this.thirdElement
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)
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fun switchFirstAndThirdElements() =
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Triple(
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this.thirdElement,
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this.secondElement,
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this.firstElement
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)
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fun switchSecondAndThirdElements() =
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Triple(
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this.firstElement,
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this.thirdElement,
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this.secondElement
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)
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fun toPair() =
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Pair.of(
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this.firstElement,
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this.secondElement
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)
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fun <RESULT> transform(
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transformer: (FIRST_ELEMENT, SECOND_ELEMENT, THIRD_ELEMENT) -> RESULT
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) =
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transformer(
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this.firstElement,
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this.secondElement,
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this.thirdElement
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)
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fun <RESULT> transform(
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transformer: (FIRST_ELEMENT, SECOND_ELEMENT) -> RESULT
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) =
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transformer(
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this.firstElement,
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this.secondElement
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)
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companion object Builder {
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> of(
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firstElement: FIRST_ELEMENT,
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secondElement: SECOND_ELEMENT,
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thirdElement: THIRD_ELEMENT
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) =
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Triple(
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firstElement,
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secondElement,
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thirdElement
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)
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> of(
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firstElement: () -> FIRST_ELEMENT,
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secondElement: () -> SECOND_ELEMENT,
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thirdElement: () -> THIRD_ELEMENT
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) =
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Triple(
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firstElement(),
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secondElement(),
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thirdElement()
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)
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}
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class Factory<FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> private constructor() {
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fun first(
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firstElement: FIRST_ELEMENT
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) =
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SecondFactory
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.instance<_, SECOND_ELEMENT, THIRD_ELEMENT>(
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firstElement
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)
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companion object Builder {
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> instance() =
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Factory<FIRST_ELEMENT, SECOND_ELEMENT, THIRD_ELEMENT>()
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}
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class SecondFactory<FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> private constructor(
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private val firstElement: FIRST_ELEMENT
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) {
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fun second(
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secondElement: SECOND_ELEMENT
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) =
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ThirdFactory
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.instance<_, _, THIRD_ELEMENT>(
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this.firstElement,
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secondElement
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)
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internal companion object Builder {
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> instance(
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firstElement: FIRST_ELEMENT
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) =
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SecondFactory<_, SECOND_ELEMENT, THIRD_ELEMENT>(
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firstElement
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)
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}
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class ThirdFactory<FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> private constructor(
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private val firstElement: FIRST_ELEMENT,
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private val secondElement: SECOND_ELEMENT
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) {
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fun third(
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thirdElement: THIRD_ELEMENT
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) =
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of(
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this.firstElement,
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this.secondElement,
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thirdElement
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)
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internal companion object Builder {
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> instance(
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firstElement: FIRST_ELEMENT,
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secondElement: SECOND_ELEMENT
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) =
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ThirdFactory<_, _, THIRD_ELEMENT>(
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firstElement,
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secondElement
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)
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}
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}
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}
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}
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}
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fun <FIRST_ELEMENT : Any, SECOND_ELEMENT : Any, THIRD_ELEMENT : Any> Pair<FIRST_ELEMENT, SECOND_ELEMENT>.toTriple(
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thirdElement: THIRD_ELEMENT
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) =
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Triple.of(
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this.firstElement,
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this.secondElement,
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thirdElement
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)

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