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3ee09a2298
Rather than blanket-disabling concurrency tests when we aren't using a just-built concurrency library, enable them whenever we have a suitable concurrency runtime, either just-built, in the OS, or via the back-deployment libraries.
52 lines
1.0 KiB
Swift
52 lines
1.0 KiB
Swift
// RUN: %target-run-simple-swift(-Xfrontend -disable-availability-checking -parse-as-library)
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// REQUIRES: executable_test
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// REQUIRES: concurrency
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// https://bugs.swift.org/browse/SR-14333
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// UNSUPPORTED: OS=windows-msvc
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// REQUIRES: concurrency_runtime
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// UNSUPPORTED: back_deployment_runtime
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@available(SwiftStdlib 5.5, *)
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protocol Go: Actor {
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func go(times: Int) async -> Int
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}
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@available(SwiftStdlib 5.5, *)
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extension Go {
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func go(times: Int) async -> Int {
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for i in 0...times {
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print("\(Self.self) @ \(i)")
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await Task.yield()
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}
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return times
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}
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}
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@available(SwiftStdlib 5.5, *)
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actor One: Go {}
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@available(SwiftStdlib 5.5, *)
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actor Two: Go {}
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@available(SwiftStdlib 5.5, *)
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func yielding() async {
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let one = One()
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let two = Two()
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await withTaskGroup(of: Int.self) { group in
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group.addTask {
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await one.go(times: 100)
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}
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group.addTask {
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await two.go(times: 100)
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}
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}
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}
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@available(SwiftStdlib 5.5, *)
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@main struct Main {
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static func main() async {
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await yielding()
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}
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}
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