| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| /// Unicode escapes must refer to valid Unicode points and not surrogate |
| /// characters. |
| |
| main() { |
| var str = "Foo\u{FFFFFF}"; |
| // ^^^^^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_CODE_POINT |
| // [cfe] The escape sequence starting with '\u' isn't a valid code point. |
| str = "Foo\uD800"; |
| str = "Foo\uDC00"; |
| } |
