Simon Ogorodnik
154e53c701
It's reported on receivers in extension function calls with stub type, as such calls can shadow members of finalized stub types causing change of resolve when corresponding type argument specified explicitly It works by checking extension receiver during call resolution parts run That way we can easily detect if we found an extension applicable to stub receiver and report call diagnostic for it KT-53739
56 lines
1.5 KiB
Kotlin
Vendored
56 lines
1.5 KiB
Kotlin
Vendored
// WITH_STDLIB
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// SKIP_TXT
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fun test() {
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foo(
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flow { emit(0) }
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) { it.collect <!TOO_MANY_ARGUMENTS!>{}<!> }
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// 0. Initial
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// W <: Any / declared upper bound
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// FlowCollector<W>.() -> Unit <: FlowCollector<W>.() -> Unit / from Argument { emit(0) }
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// F <: Any / declared upper bound
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// Flow<W> <: F / from Argument flow { emit(0) }
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// Scope<F>.(F) -> Unit -> Scope<F>.(F) -> Unit / from Argument { it.collect() }
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// 1. after analyze for { emit(0 }
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// Unit <: Unit / from Lambda argument, probably { emit(0) }
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// Int <: W / from For builder inference call
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// Flow<Int> <: F / from For builder inference call
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// 2. after analyze for { it.collect {} }
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// Unit <: Unit / from Lambda argument, probably { it.collect {} }
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// Flow<*> <: F / from For builder inference call
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// ERROR_TYPE <: W / from For builder inference call
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}
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fun <F : Any> foo(
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bar: F,
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block: Scope<F>.(F) -> Unit
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) {}
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@OptIn(kotlin.experimental.ExperimentalTypeInference::class)
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fun <W> flow(@BuilderInference block: FlowCollector<W>.()->Unit): Flow<W> {
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val collector = FlowCollectorImpl<W>()
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collector.block()
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return object : Flow<W> {
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override fun collect(collector: FlowCollector<W>) {
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}
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}
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}
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class Scope<S>
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interface Flow<out O> {
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fun collect(collector: FlowCollector<O>)
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}
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fun interface FlowCollector<in I> {
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fun emit(value: I)
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}
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class FlowCollectorImpl<C> : FlowCollector<C> {
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override fun emit(value: C) {}
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}
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fun Flow<*>.collect() {} |