| /* |
| * Copyright (c) 2011 Google Inc. |
| * |
| * All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse |
| * Public License v1.0 which accompanies this distribution, and is available at |
| * |
| * http://www.eclipse.org/legal/epl-v10.html |
| */ |
| package com.google.eclipse.protobuf.grammar; |
| |
| import static org.eclipse.xtext.GrammarUtil.getAllKeywords; |
| |
| import java.util.Set; |
| |
| import org.eclipse.xtext.IGrammarAccess; |
| |
| import com.google.inject.*; |
| |
| /** |
| * Utility methods related to grammar keywords. |
| * |
| * @author alruiz@google.com (Alex Ruiz) |
| */ |
| @Singleton public class Keywords { |
| private final Set<String> keywords; |
| |
| /** |
| * Creates a new <code>{@link Keywords}</code>. |
| * @param grammarAccess provides access to elements of the protocol buffer language. |
| */ |
| @Inject public Keywords(IGrammarAccess grammarAccess) { |
| keywords = getAllKeywords(grammarAccess.getGrammar()); |
| } |
| |
| /** |
| * Indicates whether the given {@code String} is a keyword or not. |
| * @param s the given {@code String}. |
| * @return {@code true} if the given {@code String} is a keyword, {@code false} otherwise. |
| */ |
| public boolean isKeyword(String s) { |
| return keywords.contains(s); |
| } |
| } |