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test: Add regression test for rdar://136766795 #78902

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Merged
merged 1 commit into from
Jan 27, 2025
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test: Add regression test for rdar://136766795 #78902

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25 changes: 25 additions & 0 deletions test/Concurrency/sendable_checking_captures_swift5.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -69,3 +69,28 @@ func testPreconcurrencyDowngrade(ns: NotSendable) {
// expected-complete-warning@-1 {{mutation of captured var 'x' in concurrently-executing code}}
}
}

// rdar://136766795
do {
class Class {
static func test() -> @Sendable () -> Void {
{
// OK, an unbound reference is sendable.
let _ = Class.method
}
}

func method() {}
}
}

do {
class Class {}
// expected-complete-note@-1 {{class 'Class' does not conform to the 'Sendable' protocol}}

func test(_: @autoclosure @Sendable () -> Class) {}

let c: Class
test(c)
// expected-complete-warning@-1:8 {{implicit capture of 'c' requires that 'Class' conforms to `Sendable`; this is an error in the Swift 6 language mode}}
}