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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.
118 lines
3.0 KiB
Swift
118 lines
3.0 KiB
Swift
// RUN: %target-run-simple-swift( -Xfrontend -disable-availability-checking -parse-as-library %import-libdispatch) | %FileCheck %s
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// REQUIRES: rdar82092187
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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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@available(SwiftStdlib 5.1, *)
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enum TL {
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@TaskLocal
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static var number = 0
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}
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@available(SwiftStdlib 5.1, *)
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@discardableResult
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func printTaskLocal<V>(
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_ key: TaskLocal<V>,
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_ expected: V? = nil,
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file: String = #file, line: UInt = #line
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) -> V? {
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let value = key.get()
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print("\(key) (\(value)) at \(file):\(line)")
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if let expected = expected {
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assert("\(expected)" == "\(value)",
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"Expected [\(expected)] but found: \(value), at \(file):\(line)")
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}
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return expected
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}
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// ==== ------------------------------------------------------------------------
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@available(SwiftStdlib 5.1, *)
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func groups() async {
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// no value
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_ = await withTaskGroup(of: Int.self) { group in
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (0)
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}
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// no value in parent, value in child
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let x1: Int = await withTaskGroup(of: Int.self) { group in
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group.spawn {
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (0)
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// inside the child task, set a value
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_ = TL.$number.withValue(1) {
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (1)
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}
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (0)
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return TL.$number.get() // 0
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}
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return await group.next()!
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}
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assert(x1 == 0)
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// value in parent and in groups
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await TL.$number.withValue(2) {
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (2)
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let x2: Int = await withTaskGroup(of: Int.self) { group in
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (2)
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group.spawn {
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (2)
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async let childInsideGroupChild = printTaskLocal(TL.$number)
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_ = await childInsideGroupChild // CHECK: TaskLocal<Int>(defaultValue: 0) (2)
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return TL.$number.get()
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}
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (2)
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return await group.next()!
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}
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assert(x2 == 2)
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}
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}
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@available(SwiftStdlib 5.1, *)
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func taskInsideGroup() async {
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Task {
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print("outside") // CHECK: outside
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_ = await withTaskGroup(of: Int.self) { group -> Int in
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print("in group") // CHECK: in group
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printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (0)
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for _ in 0..<5 {
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Task {
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printTaskLocal(TL.$number)
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print("some task")
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}
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}
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return 0
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}
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}
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// CHECK: some task
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// CHECK: some task
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// CHECK: some task
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// CHECK: some task
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await Task.sleep(5 * 1_000_000_000)
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// await t.value
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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 groups()
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await taskInsideGroup()
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}
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}
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