| // RUN: %target-swift-frontend -typecheck %s -swift-version 3 | |
| // RUN: %target-swift-frontend -typecheck -update-code -primary-file %s -emit-migrated-file-path %t.result -swift-version 3 | |
| // RUN: diff -u %s.expected %t.result | |
| // RUN: %target-swift-frontend -typecheck %s.expected -swift-version 4 | |
| func takesNothing(_ f: () -> ()) { | |
| f() | |
| f(()) | |
| } | |
| func takesVoidFunction(_ f: (Void) -> ()) { | |
| f() | |
| f(()) | |
| } | |
| takesNothing { print("Hello") } | |
| takesVoidFunction { print("Hello") } |