Merge pull request swiftlang#35129 from etcwilde/ewilde/global-actor-…

…sync-function-call-test-case [Concurrency] NFC: Adding top-level sync call with inout global actor state
tamulis · Dec 17, 2020 · 7afb399 · 7afb399
2 parents 32b7e36 + 5bca066
commit 7afb399
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/test/Concurrency/global_actor_from_ordinary_context.swift b/test/Concurrency/global_actor_from_ordinary_context.swift
@@ -128,4 +128,11 @@ func fromAsync() async {
 
   _ = a[1]  // expected-error{{subscript 'subscript(_:)' isolated to global actor 'SomeGlobalActor' can not be referenced from this context}}
   a[0] = 1  // expected-error{{subscript 'subscript(_:)' isolated to global actor 'SomeGlobalActor' can not be referenced from this context}}
-}
+}
+
+// expected-note@+1{{mutable state is only available within the actor instance}}
+@SomeGlobalActor var value: Int = 42
+
+func topLevelSyncFunction(_ number: inout Int) { }
+// expected-error@+1{{var 'value' isolated to global actor 'SomeGlobalActor' can not be referenced from this context}}
+topLevelSyncFunction(&value)