| // This source file is part of the Swift.org open source project |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| |
| // RUN: %target-swift-frontend %s -typecheck -verify |
| |
| // Test case submitted to project by https://github.com/tmu (Teemu Kurppa) |
| // rdar://18175202 |
| |
| func d<b: Sequence, e where Optional<e> == b.Iterator.Element>(c : b) -> e? { |
| // expected-warning@-1 {{'where' clause next to generic parameters}} |
| for mx : e? in c { // expected-warning {{immutable value 'mx' was never used}} |
| } |
| } |
