| // RUN: %target-swift-frontend -typecheck -swift-version 5 %s -verify |
| |
| func testPopFirst() { |
| let str = "abc" |
| let charView: String.CharacterView // expected-error{{'CharacterView' is unavailable: Please use String directly}} |
| _ = str.characters // expected-error{{'characters' is unavailable: Please use String directly}} |
| dump(charView) |
| |
| var substr = str[...] |
| _ = substr.popFirst() // ok |
| _ = substr.characters.popFirst() // expected-error{{'characters' is unavailable: Please use Substring directly}} |
| _ = substr.unicodeScalars.popFirst() // ok |
| |
| let charSubView: Substring.CharacterView // expected-error{{'CharacterView' is unavailable: Please use Substring directly}} |
| _ = substr.characters // expected-error{{'characters' is unavailable: Please use Substring directly}} |
| dump(charSubView) |
| } |
| |
