simon.ogorodnik
79 lines
1.6 KiB
Kotlin
Vendored
79 lines
1.6 KiB
Kotlin
Vendored
// !WITH_NEW_INFERENCE
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// !CHECK_TYPE
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package a
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fun <T> id(t: T): T = t
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fun <T> either(t1: T, t2: T): T = t1
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fun other(s: String) {}
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fun <T> otherGeneric(l: List<T>) {}
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fun test() {
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val a: Byte = id(1)
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val b: Byte = id(300)
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val c: Int = id(9223372036854775807)
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val d = id(22)
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checkSubtype<Int>(d)
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val e = id(9223372036854775807)
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e checkType { _<Long>() }
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val f: Byte = either(1, 2)
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val g: Byte = either(1, 300)
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<!INAPPLICABLE_CANDIDATE!>other<!>(11)
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<!INAPPLICABLE_CANDIDATE!>otherGeneric<!>(1)
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val r = either(1, "")
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r checkType { <!INAPPLICABLE_CANDIDATE!>_<!><Any>() }
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use(a, b, c, d, e, f, g, r)
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}
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fun use(vararg a: Any?) = a
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interface Inv<T>
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fun <T> exactBound(t: T, l: Inv<T>): T = throw Exception("$t $l")
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fun testExactBound(invS: Inv<String>, invI: Inv<Int>, invB: Inv<Byte>) {
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<!INAPPLICABLE_CANDIDATE!>exactBound<!>(1, invS)
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exactBound(1, invI)
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val b = exactBound(1, invB)
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b checkType { _<Byte>() }
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}
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interface Cov<out T>
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fun <T> lowerBound(t: T, l : Cov<T>): T = throw Exception("$t $l")
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fun testLowerBound(cov: Cov<String>, covN: Cov<Number>) {
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val r = lowerBound(1, cov)
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r checkType { <!INAPPLICABLE_CANDIDATE!>_<!><Any>() }
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val n = lowerBound(1, covN)
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n checkType { _<Number>() }
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}
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interface Contr<in T>
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fun <T> upperBound(t: T, l: Contr<T>): T = throw Exception("$t $l")
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fun testUpperBound(contrS: Contr<String>, contrB: Contr<Byte>, contrN: Contr<Number>) {
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<!INAPPLICABLE_CANDIDATE!>upperBound<!>(1, contrS)
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val n = upperBound(1, contrN)
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n checkType { _<Int>() }
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val b = upperBound(1, contrB)
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b checkType { _<Byte>() }
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}
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