| // 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 |
| |
| /// (backslash) uXXXX must have exactly 4 hex digits. |
| |
| main() { |
| var str = "Foo\u00"; |
| // ^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_NO_BRACKET |
| // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits. |
| str = "Foo\uDEEMBar"; |
| // ^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE_U_NO_BRACKET |
| // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits. |
| } |
