Victor Petukhov
0857b9c9e7
Namely, remove incorporation “otherInsideMyConstraint” to eliminate constraint system redundancy and produce a potentially very large number of constructs. Instead, introduce not so “spreadable” incorporation during variable fixation (equality constraint with result type into other constraints). ^KT-41644 Fixed ^KT-42195 Fixed ^KT-42920 Fixed ^KT-42791 Fixed ^KT-41741 Fixed
26 lines
2.1 KiB
Kotlin
Vendored
26 lines
2.1 KiB
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_EXPRESSION -UNUSED_PARAMETER -UNUSED_ANONYMOUS_PARAMETER
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fun <T> select(vararg x: T) = x[0]
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fun <K> id(x: K): K = x
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fun <T: suspend (Int) -> Unit, K: T> takeSuspend(x: T, y: K) = x
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fun <T: (Int) -> Unit, K: T> takeSimpleFunction(x: T, y: K) = x
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fun main() {
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select(suspend {}, <!DEBUG_INFO_EXPRESSION_TYPE("suspend () -> kotlin.Unit")!>{}<!>)
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select(<!DEBUG_INFO_EXPRESSION_TYPE("suspend () -> kotlin.Unit")!>{}<!>, suspend {})
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select(<!DEBUG_INFO_EXPRESSION_TYPE("suspend () -> kotlin.Unit")!>id {}<!>, suspend {})
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select(<!DEBUG_INFO_EXPRESSION_TYPE("suspend () -> kotlin.Unit")!>id {}<!>, id(suspend {}))
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select(<!DEBUG_INFO_EXPRESSION_TYPE("suspend () -> kotlin.Unit")!>id {}<!>, id<suspend () -> Unit> {})
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takeSuspend(<!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>id { it }<!>, <!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>{ x -> x }<!>)
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val x1: suspend (Int) -> Unit = takeSuspend(<!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>id { it }<!>, <!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>{ x -> x }<!>)
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// Here, the error should be
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val x2: (Int) -> Unit = <!TYPE_MISMATCH!>takeSuspend(<!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>id <!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>{ it }<!><!>, <!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit"), TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>{ x -> x }<!>)<!>
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val x3: suspend (Int) -> Unit = takeSimpleFunction(<!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit")!>id <!TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>{ it }<!><!>, <!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit"), TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>{ x -> x }<!>)
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val x4: (Int) -> Unit = <!TYPE_MISMATCH, TYPE_MISMATCH!>takeSimpleFunction(<!TYPE_MISMATCH!>id<suspend (Int) -> Unit> {}<!>, <!DEBUG_INFO_EXPRESSION_TYPE("suspend (kotlin.Int) -> kotlin.Unit"), TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH, TYPE_MISMATCH!>{}<!>)<!>
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}
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