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34c08b8344
The new intrinsic, exposed via static functions on Task<T, Never> and Task<T, Error> (rethrowing), begins an asynchronous context within a synchronous caller's context. This is only available for use under the task-to-thread concurrency model, and even then only under SPI.
34 lines
1.5 KiB
Swift
34 lines
1.5 KiB
Swift
// RUN: %target-swift-frontend -disable-availability-checking %s -parse-as-library -parse-stdlib -emit-sil -o - | %FileCheck %s
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// REQUIRES: concurrency
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import _Concurrency
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@MainActor
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func suspend() async {}
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// Builtin.hopToActor should generate a mandatory hop_to_executor
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// before releasing the actor and reaching a suspend.
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//
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// CHECK-LABEL: sil private @$s14builtin_silgen11runDetachedyyFyyYaYbcfU_ : $@convention(thin) @Sendable @async @substituted <τ_0_0> () -> @out τ_0_0 for <()>
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// CHECK: [[ACTOR:%.*]] = apply {{%.*}}({{%.*}}) : $@convention(method) (@thick MainActor.Type) -> @owned MainActor
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// CHECK: hop_to_executor [mandatory] [[ACTOR]] : $MainActor
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// CHECK: strong_release [[ACTOR]] : $MainActor
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// CHECK: apply %{{.*}}() : $@convention(thin) @async () -> ()
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@available(SwiftStdlib 5.1, *)
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func runDetached() {
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Task.detached {
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Builtin.hopToActor(MainActor.shared)
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await suspend()
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}
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}
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// CHECK-LABEL: sil{{.*}} @$s14builtin_silgen13testRunInlineyxxyYaXElF : {{.*}} {
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// CHECK: {{bb[0-9]+}}([[RESULT:%[^,]+]] : $*T, [[CLOSURE:%[^,]+]] : $@noescape @async @callee_guaranteed @substituted <τ_0_0> () -> @out τ_0_0 for <T>):
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// CHECK: builtin "taskRunInline"<T>([[RESULT]] : $*T, [[CLOSURE]] : $@noescape @async @callee_guaranteed @substituted <τ_0_0> () -> @out τ_0_0 for <T>) : $()
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// CHECK-LABEL: } // end sil function '$s14builtin_silgen13testRunInlineyxxyYaXElF'
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@available(SwiftStdlib 5.1, *)
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func testRunInline<T>(_ cl: () async -> T) -> T {
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return Builtin.taskRunInline(cl)
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}
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