anastasiia.spaseeva
40 lines
1.2 KiB
Kotlin
Vendored
40 lines
1.2 KiB
Kotlin
Vendored
// FIR_IDENTICAL
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/*
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* KOTLIN DIAGNOSTICS SPEC TEST (POSITIVE)
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*
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* SPEC VERSION: 0.1-152
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* PRIMARY LINKS: expressions, when-expression -> paragraph 2 -> sentence 1
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* expressions, when-expression -> paragraph 5 -> sentence 1
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* expressions, when-expression, exhaustive-when-expressions -> paragraph 2 -> sentence 1
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* expressions, conditional-expression -> paragraph 4 -> sentence 1
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* type-inference, local-type-inference -> paragraph 8 -> sentence 1
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* type-inference, local-type-inference -> paragraph 2 -> sentence 1
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* type-system, subtyping, subtyping-rules -> paragraph 2 -> sentence 3
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* type-system, subtyping, subtyping-for-nullable-types -> paragraph 4 -> sentence 1
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* type-system, subtyping, subtyping-for-nullable-types -> paragraph 4 -> sentence 2
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*/
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interface Maybe<T>
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class Some<T>(val value: T) : Maybe<T>
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class None<T> : Maybe<T>
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fun <T> none() : None<T> = TODO()
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fun test1() : Maybe<String?> = if (true) none() else Some("")
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fun test2() : Maybe<String?> = when {
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true -> none()
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else -> Some("")
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}
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fun test3() : Maybe<String?> = when {
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true -> none()
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else -> Some<String?>("")
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}
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fun test4() : Maybe<String?> {
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when ("") {
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"a" -> return none()
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else -> return Some<String?>("")
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}
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} |