ParserFactory.java revision 110
110N/A/*
110N/A * Copyright 1999-2008 Sun Microsystems, Inc. All Rights Reserved.
110N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
110N/A *
110N/A * This code is free software; you can redistribute it and/or modify it
110N/A * under the terms of the GNU General Public License version 2 only, as
110N/A * published by the Free Software Foundation. Sun designates this
110N/A * particular file as subject to the "Classpath" exception as provided
110N/A * by Sun in the LICENSE file that accompanied this code.
110N/A *
110N/A * This code is distributed in the hope that it will be useful, but WITHOUT
110N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
110N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
110N/A * version 2 for more details (a copy is included in the LICENSE file that
110N/A * accompanied this code).
110N/A *
110N/A * You should have received a copy of the GNU General Public License version
110N/A * 2 along with this work; if not, write to the Free Software Foundation,
110N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
110N/A *
110N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
110N/A * CA 95054 USA or visit www.sun.com if you need additional information or
110N/A * have any questions.
110N/A */
110N/A
110N/Apackage com.sun.tools.javac.parser;
110N/A
110N/Aimport com.sun.tools.javac.code.Source;
110N/Aimport com.sun.tools.javac.tree.TreeMaker;
110N/Aimport com.sun.tools.javac.util.Context;
110N/Aimport com.sun.tools.javac.util.Log;
110N/Aimport com.sun.tools.javac.util.Name;
110N/Aimport com.sun.tools.javac.util.Options;
110N/A
110N/A/**
110N/A * A factory for creating parsers.
110N/A */
110N/Apublic class ParserFactory {
110N/A
110N/A /** The context key for the parser factory. */
110N/A protected static final Context.Key<ParserFactory> parserFactoryKey = new Context.Key<ParserFactory>();
110N/A
110N/A public static ParserFactory instance(Context context) {
110N/A ParserFactory instance = context.get(parserFactoryKey);
110N/A if (instance == null) {
110N/A instance = new ParserFactory(context);
110N/A }
110N/A return instance;
110N/A }
110N/A
110N/A final TreeMaker F;
110N/A final Log log;
110N/A final Keywords keywords;
110N/A final Source source;
110N/A final Name.Table names;
110N/A final Options options;
110N/A final Scanner.Factory scannerFactory;
110N/A
110N/A protected ParserFactory(Context context) {
110N/A super();
110N/A context.put(parserFactoryKey, this);
110N/A this.F = TreeMaker.instance(context);
110N/A this.log = Log.instance(context);
110N/A this.names = Name.Table.instance(context);
110N/A this.keywords = Keywords.instance(context);
110N/A this.source = Source.instance(context);
110N/A this.options = Options.instance(context);
110N/A this.scannerFactory = Scanner.Factory.instance(context);
110N/A }
110N/A
110N/A public Parser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) {
110N/A Lexer lexer = scannerFactory.newScanner(input);
110N/A if (keepEndPos) {
110N/A return new EndPosParser(this, lexer, keepDocComments, keepLineMap);
110N/A } else {
110N/A return new JavacParser(this, lexer, keepDocComments, keepLineMap);
110N/A }
110N/A }
110N/A}