| // 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 -emit-ir |
| |
| // Test case submitted to project by https://github.com/tmu (Teemu Kurppa) |
| |
| extension String : RangeReplaceableCollection {} |
| |
| func f<S : RangeReplaceableCollection>(_ seq: S) -> S { |
| return S() + seq |
| } |
| |
| f("a") |
