File: optional_isolated_parameters.swift

package info (click to toggle)
swiftlang 6.1.3-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,532 kB
  • sloc: cpp: 9,901,743; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (30 lines) | stat: -rw-r--r-- 729 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
// RUN: %empty-directory(%t)
// RUN: %target-build-swift -target %target-swift-5.1-abi-triple %s -o %t/main
// RUN: %target-codesign %t/main
// RUN: %target-run %t/main | %FileCheck %s

// REQUIRES: executable_test
// REQUIRES: concurrency

// rdar://124277662
// XFAIL: freestanding

actor MyActor: CustomStringConvertible {
  let description = "MyActor"
}

func optionalIsolated(to actor: isolated (any Actor)?) {
  actor?.assertIsolated()
  if let actor {
    print("isolated to \(actor)")
  } else {
    print("nonisolated")
  }
}

// CHECK: nonisolated
// CHECK: isolated to Swift.MainActor
// CHECK: isolated to MyActor
optionalIsolated(to: nil)
optionalIsolated(to: MainActor.shared)
await optionalIsolated(to: MyActor())