| /* | |
| * Copyright (c) 2011, 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. | |
| */ | |
| /** | |
| * @assertion An identifier expression consists of a single identifier; it | |
| * provides access to an object via an unqualified name. | |
| * identifier: | |
| * IDENTIFIER | |
| * ; | |
| * IDENTIFIER_NO_DOLLAR: | |
| * IDENTIFIER_START_NO_DOLLAR IDENTIFIER_PART_NO_DOLLAR* | |
| * ; | |
| * IDENTIFIER: | |
| * IDENTIFIER_START IDENTIFIER_PART* | |
| * ; | |
| * IDENTIFIER_START: | |
| * IDENTIFIER_START_NO_DOLLAR | | |
| * '$' | |
| * ; | |
| * IDENTIFIER_START_NO_DOLLAR: | |
| * LETTER | | |
| * '_' | |
| * ; | |
| * IDENTIFIER_PART_NO_DOLLAR: | |
| * IDENTIFIER_START_NO_DOLLAR | | |
| * DIGIT | |
| * ; | |
| * IDENTIFIER_PART: | |
| * IDENTIFIER_START | | |
| * DIGIT | |
| * ; | |
| * LETTER: | |
| * ‘a’ .. ‘z’ | | |
| * ‘A’ ..‘Z’ | |
| * ; | |
| * @description Checks that neither backslashes, nor unicode escape sequences | |
| * are allowed in identifiers. | |
| * @compile-error | |
| * @author iefremov | |
| */ | |
| main() { | |
| var abc\u0061=1; | |
| } |