Denis.Zharkov
9be4f818f4
See test data at starProjectionInsteadOutCaptured.kt ^KT-49412 Fixed ^KT-50230 Relates ^KT-48044 Fixed
23 lines
630 B
Kotlin
Vendored
23 lines
630 B
Kotlin
Vendored
// FIR_IDENTICAL
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// SKIP_TXT
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// !LANGUAGE: +ProperTypeInferenceConstraintsProcessing
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fun main(args: Array<String>) {
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val zero = coerce<Int, String>(0)
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}
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fun <T, U> coerce(t: T): U {
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// Should be an error somewhere because this code leads to unsoundness
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// We may report that `Constrain<U, *, in T>?` type definition is unsound or the call `Bind(constrain)`
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// See KT-50230
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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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