concurrency-currenttask.swift

// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -enable-experimental-feature Embedded -parse-as-library %s -c -o %t/a.o
// RUN: %target-clang %t/a.o -o %t/a.out -L%swift_obj_root/lib/swift/embedded/%target-cpu-apple-macos -lswift_Concurrency -lswift_ConcurrencyDefaultExecutor -dead_strip
// RUN: %target-run %t/a.out | %FileCheck %s

// REQUIRES: executable_test
// REQUIRES: swift_in_compiler
// REQUIRES: optimized_stdlib
// REQUIRES: OS=macosx
// REQUIRES: swift_feature_Embedded

import _Concurrency

func printCurrentTaskNilOrNonNil(){
withUnsafeCurrentTask{ task in
print(task ==nil?"nil":"valid")
}
}

publicfunc test()async->Int{
printCurrentTaskNilOrNonNil()
return42
}

@main
structMain{
staticfunc main()async{
print("main")
 // CHECK: main

printCurrentTaskNilOrNonNil()
lett=Task{
letx=awaittest()
print(x ==42?"42":"???")
}
await t.value
 // CHECK-NEXT: valid
 // CHECK-NEXT: valid
 // CHECK-NEXT: 42
}
}