| // RUN: %target-swift-frontend -typecheck -primary-file %s |
| |
| protocol AnyCodeUnits_ { |
| typealias Index = Int64 |
| typealias Element = UInt32 |
| var startIndex: Index { get } |
| var endIndex: Index { get } |
| func index(after: Index) -> Index |
| func index(before: Index) -> Index |
| func index(_ i: Index, offsetBy: Int64) -> Index |
| subscript(i: Index) -> Element { get } |
| subscript(r: Range<Index>) -> AnyCodeUnits { get } |
| } |
| |
| struct AnyCodeUnits : RandomAccessCollection, AnyCodeUnits_ { |
| let me: AnyCodeUnits_ |
| typealias Indices = DefaultIndices<AnyCodeUnits> |
| var startIndex: Int64 { return me.startIndex } |
| var endIndex: Int64 { return me.endIndex } |
| func index(after i: Index) -> Index { return me.index(after: i) } |
| func index(before i: Index) -> Index { return me.index(before: i) } |
| func index(_ i: Index, offsetBy: Int64) -> Index { return me.index(i, offsetBy: i) } |
| subscript(i: Index) -> Element { return me[i] } |
| subscript(r: Range<Index>) -> AnyCodeUnits { return me[r] } |
| } |
| |
