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// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/StrictModule.swiftmodule -module-name StrictModule -swift-version 6 %S/Inputs/StrictModule.swift
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/NonStrictModule.swiftmodule -module-name NonStrictModule %S/Inputs/NonStrictModule.swift
// RUN: %target-swift-frontend -emit-module -emit-module-path %t/OtherActors.swiftmodule -module-name OtherActors %S/Inputs/OtherActors.swift -disable-availability-checking
// RUN: %target-swift-frontend -I %t %s -emit-sil -o /dev/null -verify -parse-as-library -enable-upcoming-feature GlobalConcurrency
// RUN: %target-swift-frontend -I %t %s -emit-sil -o /dev/null -verify -strict-concurrency=targeted -parse-as-library -enable-upcoming-feature GlobalConcurrency
// RUN: %target-swift-frontend -I %t %s -emit-sil -o /dev/null -verify -strict-concurrency=complete -parse-as-library -enable-upcoming-feature GlobalConcurrency
// REQUIRES: concurrency
// REQUIRES: asserts
@preconcurrency import NonStrictModule
@_predatesConcurrency import StrictModule // expected-warning{{'@_predatesConcurrency' has been renamed to '@preconcurrency'}}
@preconcurrency import OtherActors
@preconcurrency
class MyPredatesConcurrencyClass { }
enum EnumWithPredatesConcurrencyValue {
case stored(MyPredatesConcurrencyClass)
}
func acceptSendable<T: Sendable>(_: T) { }
@available(SwiftStdlib 5.1, *)
func test(
ss: StrictStruct, ns: NonStrictClass, oma: OtherModuleActor,
ssOpt: StrictStruct?, nsOpt: NonStrictClass?,
ssc: SomeSendableClass,
mpcc: MyPredatesConcurrencyClass
) async {
acceptSendable(ss) // expected-warning{{type 'StrictStruct' does not conform to the 'Sendable' protocol}}
acceptSendable(ns) // silence issue entirely
acceptSendable(ssOpt) // expected-warning{{type 'StrictStruct' does not conform to the 'Sendable' protocol}}
acceptSendable(nsOpt) // silence issue entirely
acceptSendable(oma) // okay
acceptSendable(ssc) // okay
acceptSendable(mpcc)
}
let nonStrictGlobal = NonStrictClass() // no warning
let strictGlobal = StrictStruct() // expected-warning{{let 'strictGlobal' is not concurrency-safe because non-'Sendable' type 'StrictStruct' may have shared mutable state}}
// expected-note@-1{{disable concurrency-safety checks if accesses are protected by an external synchronization mechanism}}
// expected-note@-2{{annotate 'strictGlobal' with '@MainActor' if property should only be accessed from the main actor}}
extension NonStrictClass {
@Sendable func f() { }
}
extension StrictStruct {
@Sendable func f() { } // expected-warning{{instance method of non-Sendable type 'StrictStruct' cannot be marked as '@Sendable'}}
}
struct HasStatics {
nonisolated static let ns: NonStrictClass = NonStrictClass()
nonisolated static let ss: StrictStruct = StrictStruct()
// expected-warning@-1{{'nonisolated' can not be applied to variable with non-'Sendable' type 'StrictStruct'}}
// expected-warning@-2{{static property 'ss' is not concurrency-safe because non-'Sendable' type 'StrictStruct' may have shared mutable state}}
// expected-note@-3{{disable concurrency-safety checks if accesses are protected by an external synchronization mechanism}}
// expected-note@-4{{annotate 'ss' with '@MainActor' if property should only be accessed from the main actor}}
}
extension NonStrictClass2: @retroactive MySendableProto { }
extension NonStrictClass3: @retroactive Sendable { }
// expected-warning@-1{{conformance to 'Sendable' must occur in the same source file as class 'NonStrictClass3'; use '@unchecked Sendable' for retroactive conformance}}
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