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// RUN: %target-swift-frontend -typecheck -disable-availability-checking -enable-experimental-async-top-level -swift-version 6 %s -verify
var a = 10
// expected-note@-1 2 {{var declared here}}
// expected-note@-2 2 {{mutation of this var is only permitted within the actor}}
func nonIsolatedSync() { //expected-note 3 {{add '@MainActor' to make global function 'nonIsolatedSync()' part of global actor 'MainActor'}}
print(a) // expected-error {{main actor-isolated var 'a' can not be referenced from a nonisolated context}}
a = a + 10
// expected-error@-1:9 {{main actor-isolated var 'a' can not be referenced from a nonisolated context}}
// expected-error@-2:5 {{main actor-isolated var 'a' can not be mutated from a nonisolated context}}
}
@MainActor
func isolatedSync() {
print(a)
a = a + 10
}
func nonIsolatedAsync() async {
await print(a)
a = a + 10
// expected-error@-1:5 {{main actor-isolated var 'a' can not be mutated from a nonisolated context}}
// expected-error@-2:9 {{expression is 'async' but is not marked with 'await'}}
// expected-note@-3:9 {{property access is 'async'}}
}
@MainActor
func isolatedAsync() async {
print(a)
a = a + 10
}
nonIsolatedSync()
isolatedSync()
await nonIsolatedAsync()
await isolatedAsync()
print(a)
if a > 10 {
nonIsolatedSync()
isolatedSync()
await nonIsolatedAsync()
await isolatedAsync()
print(a)
}
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