40 lines
1.1 KiB
Kotlin
40 lines
1.1 KiB
Kotlin
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package com.mikebull94.result
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/**
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* - Elm: [Result](http://package.elm-lang.org/packages/elm-lang/core/5.1.1/Result)
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* - Haskell: [Data.Either](https://hackage.haskell.org/package/base-4.10.0.0/docs/Data-Either.html)
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*/
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sealed class Result<out V, out E>
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class Ok<out V, out E> internal constructor(val value: V) : Result<V, E>() {
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override fun equals(other: Any?): Boolean {
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if (this === other) return true
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if (javaClass != other?.javaClass) return false
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other as Ok<*, *>
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if (value != other.value) return false
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return true
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}
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override fun hashCode() = value?.hashCode() ?: 0
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override fun toString() = "Result.Ok($value)"
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}
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class Error<out V, out E> internal constructor(val error: E) : Result<V, E>() {
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override fun equals(other: Any?): Boolean {
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if (this === other) return true
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if (javaClass != other?.javaClass) return false
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other as Error<*, *>
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if (error != other.error) return false
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return true
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}
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override fun hashCode() = error?.hashCode() ?: 0
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override fun toString() = "Result.Error($error)"
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}
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