| // 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: not %target-swift-frontend %s -typecheck |
| |
| // ASAN Output: stack-overflow on address 0x7fff31bf3ff8 (pc 0x0000022f8f44 bp 0x7fff31bf49d0 sp 0x7fff31bf4000 T0) |
| |
| extension RawRepresentable { |
| init?(rawValue optionalRawValue: RawValue?) { |
| guard let rawValue = optionalRawValue, value = Self(rawValue: rawValue) else { return nil } |
| self = value |
| } |
| } |
| |
| enum E: Int { |
| case A = 0, B |
| } |
| |
| let v: E = .A |
