File: actor_data_race_checks_minimal.swift

package info (click to toggle)
swiftlang 6.0.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 2,519,992 kB
  • sloc: cpp: 9,107,863; ansic: 2,040,022; asm: 1,135,751; python: 296,500; objc: 82,456; f90: 60,502; lisp: 34,951; pascal: 19,946; sh: 18,133; perl: 7,482; ml: 4,937; javascript: 4,117; makefile: 3,840; awk: 3,535; xml: 914; fortran: 619; cs: 573; ruby: 573
file content (36 lines) | stat: -rw-r--r-- 710 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
31
32
33
34
35
36
// RUN: %target-run-simple-swift(-Xfrontend -disable-availability-checking -enable-actor-data-race-checks -swift-version 5 -strict-concurrency=minimal) | %FileCheck %s

// REQUIRES: executable_test
// REQUIRES: concurrency
// REQUIRES: concurrency_runtime
// UNSUPPORTED: freestanding

@preconcurrency @MainActor
protocol P {
  func requirement()
}

class C: P {
  func requirement() {
    call {
      print("don't crash!")
    }
  }

  var task: Task<Void, Never>?

  @preconcurrency func call(closure: @escaping @Sendable () -> Void) {
    task = Task.detached {
      closure()
    }
  }

  func wait() async {
    await task?.value
  }
}

// CHECK: don't crash!
let c = C()
c.requirement()
await c.wait()