| // RUN: %target-parse-verify-swift |
| |
| // Positive and negative tests for String index types |
| func acceptsCollection<I: Collection>(_: I) {} |
| func acceptsBidirectionalCollection<I: BidirectionalCollection>(_: I) {} |
| func acceptsRandomAccessCollection<I: RandomAccessCollection>(_: I) {} |
| |
| func testStringCollectionTypes(s: String) { |
| acceptsCollection(s.utf8) |
| acceptsBidirectionalCollection(s.utf8) // expected-error{{argument type 'String.UTF8View' does not conform to expected type 'BidirectionalCollection'}} |
| acceptsRandomAccessCollection(s.utf8) // expected-error{{argument type 'String.UTF8View' does not conform to expected type 'RandomAccessCollection'}} |
| |
| // UTF16View is random-access with Foundation, bidirectional without |
| acceptsCollection(s.utf16) |
| acceptsBidirectionalCollection(s.utf16) |
| acceptsRandomAccessCollection(s.utf16) // expected-error{{argument type 'String.UTF16View' does not conform to expected type 'RandomAccessCollection'}} |
| |
| acceptsCollection(s.unicodeScalars) |
| acceptsBidirectionalCollection(s.unicodeScalars) |
| acceptsRandomAccessCollection(s.unicodeScalars) // expected-error{{argument type 'String.UnicodeScalarView' does not conform to expected type 'RandomAccessCollection'}} |
| |
| acceptsCollection(s.characters) |
| acceptsBidirectionalCollection(s.characters) |
| acceptsRandomAccessCollection(s.characters) // expected-error{{argument type 'String.CharacterView' does not conform to expected type 'RandomAccessCollection'}} |
| } |
| |
| struct NotLosslessStringConvertible {} |
| |
| func testStringInitT() { |
| _ = String(NotLosslessStringConvertible()) // expected-error{{'init' has been renamed to 'init(describing:)}} |
| } |
