| // RUN: %target-swift-frontend -typecheck -verify %s | |
| struct A { | |
| subscript(x: Int) -> Int { return x } | |
| var c: C? = C() | |
| } | |
| class C { | |
| var i = 0 | |
| } | |
| // rdar://problem/32209039 - Improve diagnostic when unsupported tuple element references are used in key path literals | |
| let _ = \(Int, String).0 // expected-error {{key path cannot reference tuple elements}} | |
| let _ = \(a: Int, b: String).b // expected-error {{key path cannot reference tuple elements}} |