Mikhail Glukhikh
2680c8effd
Before this commit, K2 always applied coercion-to-unit for callable references if expected type was Unit, and actual non-Unit. However, this may not work in case when actual return type is a type parameter and it must be inferred into Unit. In this commit we started to disallow coercion-to-unit for references with synthetic outer call (~ top-level in K1) AND a type parameter as a return type (both should be true to disallow). This provides better K1 consistency, while still keeping some broken K1 cases working in K2. See also added comment in CallableReferenceResolution.kt. #KT-62565 Fixed
31 lines
748 B
Kotlin
Vendored
31 lines
748 B
Kotlin
Vendored
// DIAGNOSTICS: -UNCHECKED_CAST
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// This test is a copy of conversionLastStatementInLambda, but with generic functions
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// However works diffirently in K1
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fun main(b: Boolean) {
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callWithLambda {
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<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::test1<!>
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}
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callWithLambda {
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if (b) <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::test1<!> else <!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::test2<!>
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}
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callWithLambda {
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if (b) {
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::test1
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} else {
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::test2
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}
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}
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callWithLambda {
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(<!NEW_INFERENCE_NO_INFORMATION_FOR_PARAMETER!>::test1<!>)
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}
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}
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fun <T> test1(): T = "" as T
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fun <T> test2(): T = "" as T
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fun callWithLambda(action: () -> () -> Unit) {}
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