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|
// RUN: %target-swift-frontend -emit-sil -swift-version 6 -disable-availability-checking -verify %s -o /dev/null -parse-as-library
// READ THIS: This test is testing specifically behavior around global actor
// isolated types that are nonsendable. This is a bit of a corner case so we use
// a separate test case from the main global actor test case.
// REQUIRES: concurrency
// REQUIRES: asserts
////////////////////////
// MARK: Declarations //
////////////////////////
class NonSendableKlass {}
final class SendableKlass : Sendable {}
actor CustomActorInstance {}
@globalActor
struct CustomActor {
static let shared = CustomActorInstance()
}
func transferToNonIsolated<T>(_ t: T) async {}
@MainActor func transferToMainActor<T>(_ t: T) async {}
@CustomActor func transferToCustomActor<T>(_ t: T) async {}
func useValue<T>(_ t: T) {}
func useValueAsync<T>(_ t: T) async {}
@MainActor func useValueMainActor<T>(_ t: T) {}
@MainActor func mainActorFunction() {}
var booleanFlag: Bool { false }
@MainActor var mainActorIsolatedGlobal = NonSendableKlass()
@CustomActor var customActorIsolatedGlobal = NonSendableKlass()
@MainActor
class NonSendableGlobalActorIsolatedKlass {
var k = NonSendableKlass()
var p: (any GlobalActorIsolatedProtocol)? = nil
var p2: OtherProtocol? = nil
}
@available(*, unavailable)
extension NonSendableGlobalActorIsolatedKlass: Sendable {}
@MainActor
final class FinalNonSendableGlobalActorIsolatedKlass {
var k = NonSendableKlass()
var p: (any GlobalActorIsolatedProtocol)? = nil
var p2: OtherProtocol? = nil
}
@available(*, unavailable)
extension FinalNonSendableGlobalActorIsolatedKlass: Sendable {}
@MainActor
struct NonSendableGlobalActorIsolatedStruct {
var k = NonSendableKlass()
var p: (any GlobalActorIsolatedProtocol)? = nil
var p2: OtherProtocol? = nil
}
@available(*, unavailable)
extension NonSendableGlobalActorIsolatedStruct: Sendable {}
@MainActor protocol GlobalActorIsolatedProtocol {
var k: NonSendableKlass { get }
var p: GlobalActorIsolatedProtocol { get }
var p2: OtherProtocol { get }
}
protocol OtherProtocol {
var k: NonSendableKlass { get }
}
@MainActor
enum NonSendableGlobalActorIsolatedEnum {
case first
case second(NonSendableKlass)
case third(SendableKlass)
case fourth(GlobalActorIsolatedProtocol)
case fifth(OtherProtocol)
}
@available(*, unavailable)
extension NonSendableGlobalActorIsolatedEnum: Sendable {}
/////////////////
// MARK: Tests //
/////////////////
extension NonSendableGlobalActorIsolatedStruct {
mutating func test() {
_ = self.k
}
mutating func test2() -> NonSendableKlass {
self.k
}
mutating func test3() -> sending NonSendableKlass {
self.k
} // expected-error {{sending 'self.k' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'self.k' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
mutating func test4() -> (any GlobalActorIsolatedProtocol)? {
self.p
}
mutating func test5() -> sending (any GlobalActorIsolatedProtocol)? {
self.p // expected-error {{returning main actor-isolated 'self.p' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p' risks causing data races since the caller assumes that 'self.p' can be safely sent to other isolation domains}}
}
mutating func test6() -> (any OtherProtocol)? {
self.p2
}
mutating func test7() -> sending (any OtherProtocol)? {
self.p2 // expected-error {{returning main actor-isolated 'self.p2' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p2' risks causing data races since the caller assumes that 'self.p2' can be safely sent to other isolation domains}}
}
}
extension NonSendableGlobalActorIsolatedEnum {
mutating func test() {
if case let .fourth(x) = self {
print(x)
}
switch self {
case .first:
break
case .second(let x):
print(x)
break
case .third(let x):
print(x)
break
case .fourth(let x):
print(x)
break
case .fifth(let x):
print(x)
break
}
}
mutating func test2() -> (any GlobalActorIsolatedProtocol)? {
guard case let .fourth(x) = self else {
return nil
}
return x
}
mutating func test3() -> sending (any GlobalActorIsolatedProtocol)? {
guard case let .fourth(x) = self else {
return nil
}
return x // expected-error {{returning main actor-isolated 'x' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'x' risks causing data races since the caller assumes that 'x' can be safely sent to other isolation domains}}
}
mutating func test3a() -> sending (any GlobalActorIsolatedProtocol)? {
if case let .fourth(x) = self {
return x // expected-error {{returning main actor-isolated 'x' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'x' risks causing data races since the caller assumes that 'x' can be safely sent to other isolation domains}}
}
return nil
}
mutating func test3() -> sending NonSendableKlass? {
guard case let .second(x) = self else {
return nil
}
return x
} // expected-error {{sending 'x.some' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'x.some' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
mutating func test3a() -> sending NonSendableKlass? {
if case let .second(x) = self {
return x
}
return nil
} // expected-error {{sending 'x.some' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'x.some' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
}
extension NonSendableGlobalActorIsolatedKlass {
func test() {
_ = self.k
}
func test2() -> NonSendableKlass {
self.k
}
func test3() -> sending NonSendableKlass {
self.k
} // expected-error {{sending 'self.k' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'self.k' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
func test4() -> (any GlobalActorIsolatedProtocol)? {
self.p
}
func test5() -> sending (any GlobalActorIsolatedProtocol)? {
self.p // expected-error {{returning main actor-isolated 'self.p' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p' risks causing data races since the caller assumes that 'self.p' can be safely sent to other isolation domains}}
}
func test6() -> (any OtherProtocol)? {
self.p2
}
func test7() -> sending (any OtherProtocol)? {
self.p2 // expected-error {{returning main actor-isolated 'self.p2' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p2' risks causing data races since the caller assumes that 'self.p2' can be safely sent to other isolation domains}}
}
}
extension FinalNonSendableGlobalActorIsolatedKlass {
func test() {
_ = self.k
}
func test2() -> NonSendableKlass {
self.k
}
func test3() -> sending NonSendableKlass {
self.k
} // expected-error {{sending 'self.k' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'self.k' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
func test4() -> (any GlobalActorIsolatedProtocol)? {
self.p
}
func test5() -> sending (any GlobalActorIsolatedProtocol)? {
self.p // expected-error {{returning main actor-isolated 'self.p' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p' risks causing data races since the caller assumes that 'self.p' can be safely sent to other isolation domains}}
}
func test6() -> (any OtherProtocol)? {
self.p2
}
func test7() -> sending (any OtherProtocol)? {
self.p2 // expected-error {{returning main actor-isolated 'self.p2' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p2' risks causing data races since the caller assumes that 'self.p2' can be safely sent to other isolation domains}}
}
}
extension GlobalActorIsolatedProtocol {
mutating func test() {
_ = self.k
}
mutating func test2() -> NonSendableKlass {
self.k
}
mutating func test3() -> sending NonSendableKlass {
self.k
} // expected-error {{sending 'self.k' risks causing data races}}
// expected-note @-1 {{main actor-isolated 'self.k' cannot be a 'sending' result. main actor-isolated uses may race with caller uses}}
mutating func test4() -> (any GlobalActorIsolatedProtocol)? {
self.p
}
mutating func test5() -> sending (any GlobalActorIsolatedProtocol)? {
self.p // expected-error {{returning main actor-isolated 'self.p' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p' risks causing data races since the caller assumes that 'self.p' can be safely sent to other isolation domains}}
}
mutating func test6() -> (any OtherProtocol)? {
self.p2
}
mutating func test7() -> sending (any OtherProtocol)? {
self.p2 // expected-error {{returning main actor-isolated 'self.p2' as a 'sending' result risks causing data races}}
// expected-note @-1 {{returning main actor-isolated 'self.p2' risks causing data races since the caller assumes that 'self.p2' can be safely sent to other isolation domains}}
}
}
|
