| // Copyright (c) 2017, 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. |
| |
| library fasta.parser.util; |
| |
| import '../scanner.dart' show Token; |
| |
| import '../../scanner/token.dart' show BeginToken; |
| |
| /// Returns true if [token] is the symbol or keyword [value]. |
| bool optional(String value, Token token) { |
| return identical(value, token.stringValue); |
| } |
| |
| /// Returns the close brace, bracket, or parenthesis of [left]. For '<', it may |
| /// return null. |
| Token closeBraceTokenFor(BeginToken left) => left.endToken; |
