| // RUN: %target-run-simple-swift | %FileCheck %s | |
| // REQUIRES: executable_test | |
| // REQUIRES: objc_interop | |
| import Foundation | |
| func foo(_ f: (String) -> String) { | |
| print(f(", ")) | |
| print(f(" • ")) | |
| } | |
| let x: NSArray = ["foo", "bar", "bas"] | |
| foo(x.componentsJoined) | |
| // CHECK: foo, bar, bas | |
| // CHECK: foo • bar • bas | |
| let a: AnyObject = x | |
| if let componentsJoinedByString = a.componentsJoined { | |
| foo(componentsJoinedByString) | |
| } | |
| // CHECK: foo, bar, bas | |
| // CHECK: foo • bar • bas | |