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// RUN: %target-run-simple-swift(-parse-as-library -Xfrontend -disable-availability-checking) | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: concurrency
// UNSUPPORTED: freestanding
// rdar://76038845
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime
@available(SwiftStdlib 5.1, *)
actor NameGenerator {
private var counter = 0
private var prefix : String
init(_ title: String) { self.prefix = title }
func getName() -> String {
counter += 1
return "\(prefix) \(counter)"
}
}
@available(SwiftStdlib 5.1, *)
protocol Person {
init() async
var name : String { get set }
}
@available(SwiftStdlib 5.1, *)
class EarthPerson : Person {
private static let oracle = NameGenerator("Earthling")
var name : String
required init() async {
self.name = await EarthPerson.oracle.getName()
}
init(name: String) async {
self.name = await (detach { name }).get()
}
}
@available(SwiftStdlib 5.1, *)
class NorthAmericaPerson : EarthPerson {
private static let oracle = NameGenerator("NorthAmerican")
required init() async {
await super.init()
self.name = await NorthAmericaPerson.oracle.getName()
}
override init(name: String) async {
await super.init(name: name)
}
}
@available(SwiftStdlib 5.1, *)
class PrecariousClass {
init?(nilIt : Int) async {
let _ : Optional<Int> = await (detach { nil }).get()
return nil
}
init(throwIt : Double) async throws {
if await (detach { 0 }).get() != 1 {
throw Something.bogus
}
}
init?(nilOrThrowIt shouldThrow: Bool) async throws {
let flag = await (detach { shouldThrow }).get()
if flag {
throw Something.bogus
}
return nil
}
init!(crashOrThrowIt shouldThrow: Bool) async throws {
let flag = await (detach { shouldThrow }).get()
if flag {
throw Something.bogus
}
return nil
}
}
enum Something : Error {
case bogus
}
@available(SwiftStdlib 5.1, *)
struct PrecariousStruct {
init?(nilIt : Int) async {
let _ : Optional<Int> = await (detach { nil }).get()
return nil
}
init(throwIt : Double) async throws {
if await (detach { 0 }).get() != 1 {
throw Something.bogus
}
}
}
// CHECK: Earthling 1
// CHECK-NEXT: Alice
// CHECK-NEXT: Earthling 2
// CHECK-NEXT: Bob
// CHECK-NEXT: Earthling 3
// CHECK-NEXT: Alex
// CHECK-NEXT: NorthAmerican 1
// CHECK-NEXT: NorthAmerican 2
// CHECK-NEXT: Earthling 6
// CHECK-NEXT: class was nil
// CHECK-NEXT: class threw
// CHECK-NEXT: nilOrThrowIt init was nil
// CHECK-NEXT: nilOrThrowIt init threw
// CHECK-NEXT: crashOrThrowIt init threw
// CHECK-NEXT: struct was nil
// CHECK-NEXT: struct threw
// CHECK: done
@available(SwiftStdlib 5.1, *)
@main struct RunIt {
static func main() async {
let people : [Person] = [
await EarthPerson(),
await NorthAmericaPerson(name: "Alice"),
await EarthPerson(),
await NorthAmericaPerson(name: "Bob"),
await EarthPerson(),
await NorthAmericaPerson(name: "Alex"),
await NorthAmericaPerson(),
await NorthAmericaPerson(),
await EarthPerson()
]
for p in people {
print("\(p.name)")
}
// ----
if await PrecariousClass(nilIt: 0) == nil {
print("class was nil")
}
do { let _ = try await PrecariousClass(throwIt: 0.0) } catch {
print("class threw")
}
if try! await PrecariousClass(nilOrThrowIt: false) == nil {
print("nilOrThrowIt init was nil")
}
do { let _ = try await PrecariousClass(nilOrThrowIt: true) } catch {
print("nilOrThrowIt init threw")
}
do { let _ = try await PrecariousClass(crashOrThrowIt: true) } catch {
print("crashOrThrowIt init threw")
}
if await PrecariousStruct(nilIt: 0) == nil {
print("struct was nil")
}
do { let _ = try await PrecariousStruct(throwIt: 0.0) } catch {
print("struct threw")
}
print("done")
}
}
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