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// RUN: %target-run-simple-swift( -Xfrontend -disable-availability-checking -parse-as-library)
// REQUIRES: executable_test
// REQUIRES: concurrency
// UNSUPPORTED: freestanding
// REQUIRES: concurrency_runtime
// UNSUPPORTED: back_deployment_runtime
import _Concurrency
import StdlibUnittest
class P<T> {
var t: T
init(_ v: T) {
t = v
}
}
class A {}
class B {}
class C {}
enum E : Error {
case err
}
protocol MP { }
class M : MP {
@available(SwiftStdlib 5.1, *)
func throwWithIndirectResult<T>(_ a: P<T>) async throws -> T {
throw E.err
}
}
extension MP {
@available(SwiftStdlib 5.1, *)
func l<A, B, C, D, E2, F> (_ a : P<A>, _ b: P<B>, _ c: P<C>, _ d : P<D>, _ e: P<E2>, _ f: P<F>) async throws -> (A, B, C, D, E2, F) {
throw E.err
}
}
@main struct Main {
static func main() async {
let tests = TestSuite("Async Throw")
if #available(SwiftStdlib 5.1, *) {
tests.test("throwing of naturally direct but indirect reabstraction") {
let task2 = detach {
let m = M()
await verifyCancelled {
try await m.l(P(A()), P(B()), P(C()), P(A()), P(B()), P(C()))
}
func verifyCancelled<T>(execute operation: () async throws -> T) async {
do {
let _ = try await operation()
assertionFailure("operation() threw")
}
catch _ as E {
// This is what we expect to happen
}
catch {
assertionFailure("unknown error thrown")
}
}
}
_ = await task2.get()
}
tests.test("throwing with indirect result") {
let task2 = detach {
let m = M()
do {
let _ = try await m.throwWithIndirectResult(P(A()))
assertionFailure("operation() threw")
}
catch _ as E {
// This is what we expect to happen
}
catch {
assertionFailure("unknown error thrown")
}
}
_ = await task2.get()
}
}
await runAllTestsAsync()
}
}
|
