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// RUN: %target-run-simple-swift( -plugin-path %swift-plugin-dir -parse-as-library %import-libdispatch) | %FileCheck %s
// REQUIRES: executable_test
// REQUIRES: concurrency
// REQUIRES: libdispatch
// rdar://76038845
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime
final class StringLike: Sendable, CustomStringConvertible {
let value: String
init(_ value: String) {
self.value = value
}
var description: String { value }
}
@available(SwiftStdlib 5.1, *)
enum TL {
@TaskLocal
static var string: String = "<undefined>"
@TaskLocal
static var number: Int = 0
@TaskLocal
static var never: StringLike = StringLike("<never>")
@TaskLocal
static var clazz: ClassTaskLocal?
@TaskLocal
static var force: ForceUnwrapMe!
}
@TaskLocal
@available(SwiftStdlib 5.1, *)
var globalTaskLocal: StringLike = StringLike("<not-set>")
@available(SwiftStdlib 5.10, *)
struct LessAvailable {}
struct ForceUnwrapMe {}
@TaskLocal
@available(SwiftStdlib 5.10, *)
var globalLessAvailable: LessAvailable?
@available(SwiftStdlib 5.1, *)
final class ClassTaskLocal: Sendable {
init() {
print("clazz init \(ObjectIdentifier(self))")
}
deinit {
print("clazz deinit \(ObjectIdentifier(self))")
}
}
@available(SwiftStdlib 5.1, *)
@discardableResult
func printTaskLocalAsync<V>(
_ key: TaskLocal<V>,
_ expected: V? = nil,
file: String = #file, line: UInt = #line
) async -> V? {
printTaskLocal(key, expected, file: file, line: line)
}
@available(SwiftStdlib 5.1, *)
@discardableResult
func printTaskLocal<V>(
_ key: TaskLocal<V>,
_ expected: V? = nil,
file: String = #file, line: UInt = #line
) -> V? {
let value = key.get()
print("\(key) (\(value)) at \(file):\(line)")
if let expected = expected {
assert("\(expected)" == "\(value)",
"Expected [\(expected)] but found: \(value), at \(file):\(line)")
}
return expected
}
// ==== ------------------------------------------------------------------------
@available(SwiftStdlib 5.1, *)
func simple() async {
printTaskLocal(TL.$number) // CHECK: TaskLocal<Int>(defaultValue: 0) (0)
TL.$number.withValue(1) {
printTaskLocal(TL.$number) // CHECK-NEXT: TaskLocal<Int>(defaultValue: 0) (1)
}
}
@available(SwiftStdlib 5.1, *)
func simple_deinit() async {
TL.$clazz.withValue(ClassTaskLocal()) {
// CHECK: clazz init [[C:.*]]
printTaskLocal(TL.$clazz) // CHECK: TaskLocal<Optional<ClassTaskLocal>>(defaultValue: nil) (Optional(main.ClassTaskLocal))
}
// CHECK: clazz deinit [[C]]
printTaskLocal(TL.$clazz) // CHECK: TaskLocal<Optional<ClassTaskLocal>>(defaultValue: nil) (nil)
}
struct Boom: Error {
let value: String
}
@available(SwiftStdlib 5.1, *)
func simple_throw() async {
do {
try TL.$clazz.withValue(ClassTaskLocal()) {
throw Boom(value: "oh no!")
}
} catch {
//CHECK: error: Boom(value: "oh no!")
print("error: \(error)")
}
}
@available(SwiftStdlib 5.1, *)
func nested() async {
printTaskLocal(TL.$string) // CHECK: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
TL.$string.withValue("hello") {
printTaskLocal(TL.$number) // CHECK-NEXT: TaskLocal<Int>(defaultValue: 0) (0)
printTaskLocal(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (hello)
TL.$number.withValue(2) {
printTaskLocal(TL.$number) // CHECK-NEXT: TaskLocal<Int>(defaultValue: 0) (2)
printTaskLocal(TL.$string, "hello") // CHECK: TaskLocal<String>(defaultValue: <undefined>) (hello)
}
printTaskLocal(TL.$number) // CHECK-NEXT: TaskLocal<Int>(defaultValue: 0) (0)
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (hello)
}
printTaskLocal(TL.$number) // CHECK-NEXT: TaskLocal<Int>(defaultValue: 0) (0)
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
}
@available(SwiftStdlib 5.1, *)
func nested_allContribute() async {
printTaskLocal(TL.$string) // CHECK: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
TL.$string.withValue("one") {
printTaskLocal(TL.$string, "one")// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
TL.$string.withValue("two") {
printTaskLocal(TL.$string, "two") // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (two)
TL.$string.withValue("three") {
printTaskLocal(TL.$string, "three") // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (three)
}
printTaskLocal(TL.$string, "two") // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (two)
}
printTaskLocal(TL.$string, "one")// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
}
@available(SwiftStdlib 5.1, *)
func nested_3_onlyTopContributes() async {
printTaskLocal(TL.$string) // CHECK: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
TL.$string.withValue("one") {
printTaskLocal(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
TL.$number.withValue(2) {
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
TL.$number.withValue(3) {
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
printTaskLocal(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
}
@available(SwiftStdlib 5.1, *)
func nested_3_onlyTopContributesAsync() async {
await printTaskLocalAsync(TL.$string) // CHECK: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
await TL.$string.withValue("one") {
await printTaskLocalAsync(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
await TL.$number.withValue(2) {
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
await TL.$number.withValue(3) {
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
}
@available(SwiftStdlib 5.1, *)
func nested_3_onlyTopContributesMixed() async {
await printTaskLocalAsync(TL.$string) // CHECK: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
await TL.$string.withValue("one") {
await printTaskLocalAsync(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
await TL.$number.withValue(2) {
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
TL.$number.withValue(3) {
printTaskLocal(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string)// CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (one)
}
await printTaskLocalAsync(TL.$string) // CHECK-NEXT: TaskLocal<String>(defaultValue: <undefined>) (<undefined>)
}
@available(SwiftStdlib 5.1, *)
func withLocal_body_mustNotEscape() async {
var something = "Nice"
TL.$string.withValue("xxx") {
something = "very nice"
}
_ = something // silence not used warning
}
@available(SwiftStdlib 5.1, *)
actor Worker {
@TaskLocal
static var declaredInActor: String = "<default-value>"
func setAndRead() async {
print("setAndRead") // CHECK: setAndRead
await Worker.$declaredInActor.withValue("value-1") {
await printTaskLocalAsync(Worker.$declaredInActor) // CHECK-NEXT: TaskLocal<String>(defaultValue: <default-value>) (value-1)
}
}
}
@available(SwiftStdlib 5.1, *)
func inside_actor() async {
await Worker().setAndRead()
}
@available(SwiftStdlib 5.1, *)
@main struct Main {
static func main() async {
await simple()
await simple_deinit()
await simple_throw()
await nested()
await nested_allContribute()
await nested_3_onlyTopContributes()
await nested_3_onlyTopContributesAsync()
await nested_3_onlyTopContributesMixed()
await inside_actor()
}
}
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