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// RUN: %empty-directory(%t)
// RUN: %target-build-swift %import-libdispatch -Xfrontend -disable-availability-checking -enable-actor-data-race-checks -parse-as-library %s -o %t/a.out -module-name main
// RUN: %target-codesign %t/a.out
// We specifically test for legacy behavior here, apps compiled against old SDKs
// will be able to have this behavior, however new apps will not. We use the
// overrides to test the logic for legacy code remains functional.
//
// RUN: %env-SWIFT_UNEXPECTED_EXECUTOR_LOG_LEVEL=1 %env-SWIFT_IS_CURRENT_EXECUTOR_LEGACY_MODE_OVERRIDE=legacy %target-run %t/a.out 2>&1 | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: concurrency
// REQUIRES: libdispatch
// rdar://76038845
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime
// UNSUPPORTED: single_threaded_concurrency
import _Concurrency
import Dispatch
// For sleep
#if canImport(Darwin)
import Darwin
#elseif canImport(Glibc)
import Glibc
#elseif canImport(Android)
import Android
#endif
@MainActor func onMainActor() {
print("I'm on the main actor!")
}
func promiseMainThread(_ fn: @escaping @MainActor () -> Void) -> (() -> Void) {
typealias Fn = () -> Void
return unsafeBitCast(fn, to: Fn.self)
}
func launchTask(_ fn: @escaping () -> Void) {
if #available(macOS 10.10, iOS 8.0, watchOS 2.0, tvOS 8.0, *) {
DispatchQueue.global().async {
fn()
}
}
}
func launchFromMainThread() {
launchTask(promiseMainThread(onMainActor))
}
actor MyActor {
var counter = 0
func onMyActor() {
counter = counter + 1
}
func getTaskOnMyActor() -> (() -> Void) {
return {
self.onMyActor()
}
}
}
@main
struct Runner {
static func main() async {
print("Launching a main-actor task")
// CHECK: data race detected: @MainActor function at main/data_race_detection_legacy_warning.swift:32 was not called on the main thread
launchFromMainThread()
sleep(1)
let actor = MyActor()
let actorFn = await actor.getTaskOnMyActor()
print("Launching an actor-instance task")
// CHECK: data race detected: actor-isolated function at main/data_race_detection_legacy_warning.swift:61 was not called on the same actor
launchTask(actorFn)
sleep(1)
}
}
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