Denis.Zharkov
9be4f818f4
See test data at starProjectionInsteadOutCaptured.kt ^KT-49412 Fixed ^KT-50230 Relates ^KT-48044 Fixed
24 lines
711 B
Kotlin
Vendored
24 lines
711 B
Kotlin
Vendored
// SKIP_TXT
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// !LANGUAGE: +ProperTypeInferenceConstraintsProcessing
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class A<T, F : T>
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fun foo(a: A<*, in CharSequence>) {}
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fun <T, U> coerce(t: T): U {
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val constrain: Constrain<U, *, in T>? = null
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val bind = Bind(constrain)
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return bind.upcast(t)
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}
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class Constrain<A, B : A, C : B>
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class Bind<A, B : A, C : B>(val constrain: Constrain<A, B, C>?) {
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fun upcast(c: C): A = c
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}
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fun <T, U> coerce2(t: T): U {
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// We might report an error on unsound type reference Constrain<U, *, T>?, too
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val constrain: Constrain<U, *, T>? = null
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val bind = Bind(<!TYPE_MISMATCH, TYPE_MISMATCH!>constrain<!>) // WARNING: Type mismatch: inferred type is T but U was expected
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return bind.upcast(t)
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}
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