| // 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. |
| |
| /// \u{X*} should have 1-6 hex digits. |
| |
| main() { |
| var str = "Foo\u{}Bar"; |
| // ^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE |
| // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits or from 1 to 6 digits between '{' and '}'. |
| str = "Foo\u{000000000}Bar"; |
| str = "Foo\u{DEAF!}Bar"; |
| // ^^^^^^^^ |
| // [analyzer] SYNTACTIC_ERROR.INVALID_UNICODE_ESCAPE |
| // [cfe] An escape sequence starting with '\u' must be followed by 4 hexadecimal digits or from 1 to 6 digits between '{' and '}'. |
| } |
