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// RUN: %target-swift-frontend -typecheck -disable-availability-checking -enable-experimental-async-top-level -swift-version 5 %s -verify
// RUN: %target-swift-frontend -typecheck -disable-availability-checking -swift-version 5 %s -verify
// Even though enable-experimental-async-top-level is enabled, there are no
// `await`s made from the top-level, so it is not an async context. `a` is just
// a normal top-level global variable with no actor isolation.
var a = 10
func nonIsolatedSync() {
print(a)
a = a + 10
}
@MainActor
func isolatedSync() { // expected-note 2 {{calls to global function 'isolatedSync()' from outside of its actor context are implicitly asynchronous}}
print(a)
a = a + 10
}
func nonIsolatedAsync() async {
await print(a) // expected-warning {{no 'async' operations occur within 'await' expression}}
a = a + 10
}
@MainActor
func isolatedAsync() async {
print(a)
a = a + 10
}
nonIsolatedSync()
isolatedSync() // expected-error {{call to main actor-isolated global function 'isolatedSync()' in a synchronous nonisolated context}}
nonIsolatedAsync() // expected-error {{'async' call in a function that does not support concurrency}}
isolatedAsync() // expected-error {{'async' call in a function that does not support concurrency}}
print(a)
if a > 10 {
nonIsolatedSync()
isolatedSync() // expected-error {{call to main actor-isolated global function 'isolatedSync()' in a synchronous nonisolated context}}
nonIsolatedAsync() // expected-error {{'async' call in a function that does not support concurrency}}
isolatedAsync() // expected-error {{'async' call in a function that does not support concurrency}}
print(a)
}
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