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47956908b7
The concurrency runtime now deploys back to macOS 10.15, iOS 13.0, watchOS 6.0, tvOS 13.0, which corresponds to the 5.1 release of the stdlib. Adjust macro usages accordingly.
69 lines
1.9 KiB
Swift
69 lines
1.9 KiB
Swift
// RUN: %target-run-simple-swift( -Xfrontend -disable-availability-checking %import-libdispatch -parse-as-library) | %FileCheck %s --dump-input=always
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// REQUIRES: executable_test
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// REQUIRES: concurrency
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// REQUIRES: libdispatch
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// rdar://76038845
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// REQUIRES: concurrency_runtime
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// UNSUPPORTED: back_deployment_runtime
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import Dispatch
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@available(SwiftStdlib 5.1, *)
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func test_sum_nextOnCompleted() async {
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let numbers = [1, 2, 3, 4, 5]
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let expected = 15 // FIXME: numbers.reduce(0, +) this hangs?
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let sum = try! await withTaskGroup(of: Int.self) { group async -> Int in
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for n in numbers {
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group.spawn {
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print(" complete group.spawn { \(n) }")
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return n
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}
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}
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// We specifically want to await on completed child tasks in this test,
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// so give them some time to complete before we hit group.next()
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try! await Task.sleep(nanoseconds: 2_000_000_000)
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var sum = 0
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while let r = await group.next() {
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print("next: \(r)")
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sum += r
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print("sum: \(sum)")
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}
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assert(group.isEmpty, "Group must be empty after we consumed all tasks")
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print("task group returning: \(sum)")
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return sum
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}
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// The completions may arrive in any order, we make no strong guarantees about it:
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// CON: CHECK-DAG: complete group.spawn { [[N1:[0-9]+]] }
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// CON: CHECK-DAG: complete group.spawn { [[N2:[0-9]+]] }
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// CON: CHECK-DAG: complete group.spawn { [[N3:[0-9]+]] }
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// CON: CHECK-DAG: complete group.spawn { [[N4:[0-9]+]] }
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// CON: CHECK-DAG: complete group.spawn { [[N5:[0-9]+]] }
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// CON: CHECK-DAG: next: [[N1]]
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// CON: CHECK-DAG: next: [[N2]]
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// CON: CHECK-DAG: next: [[N3]]
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// CON: CHECK-DAG: next: [[N4]]
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// CON: CHECK-DAG: next: [[N5]]
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// CHECK: sum: 15
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//
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// CHECK: task group returning: 15
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// CHECK: result: 15
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print("result: \(sum)")
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}
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@available(SwiftStdlib 5.1, *)
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@main struct Main {
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static func main() async {
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await test_sum_nextOnCompleted()
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}
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}
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