Files
swift-mirror/test/Interpreter/SDK/weak_objc_actor_interop.swift
Mike Ash b00397c7eb [Concurrency] Fix ObjC weak references to actors.
Change actor destruction to call swift_deallocClassInstance instead of swift_deallocObject. When ObjC interop is enabled, swift_deallocClassInstance will check the "pure swift deallocation" bit and call into the ObjC runtime to destruct the instance when needed. This is what clears weak references and associated objects.

rdar://91270492
2022-04-06 15:57:01 -04:00

36 lines
1.1 KiB
Swift

// RUN: %empty-directory(%t)
//
// RUN: cp %s %t/main.swift
// RUN: %target-clang -fno-objc-arc %S/Inputs/ObjCWeak/ObjCWeak.m -c -o %t/ObjCWeak.o
// RUN: %target-build-swift %t/main.swift -I %S/Inputs/ObjCWeak/ -Xlinker %t/ObjCWeak.o -o %t/weak_objc_actor_interop -Xfrontend -disable-access-control
// RUN: %target-codesign %t/weak_objc_actor_interop
// RUN: %target-run %t/weak_objc_actor_interop 2>&1 | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: objc_interop
// REQUIRES: concurrency
// UNSUPPORTED: use_os_stdlib
// UNSUPPORTED: back_deployment_runtime
import Foundation
import ObjCWeak
// Test that instances of Swift actors can be referenced using ObjC
// weak references.
@available(SwiftStdlib 5.1, *)
actor A {
@objc nonisolated var description: String {
return "Swift Actor"
}
}
// This availability check will always be true, so we don't need to provide
// FileCheck with fake output in an else branch.
if #available(SwiftStdlib 5.1, *) {
tryWeakReferencing { A() }
// CHECK: before giving up strong reference:
// CHECK-NEXT: Swift Actor
// CHECK-NEXT: after giving up strong reference:
// CHECK-NEXT: Gone
}