jjg@111: /*
ksrini@1138:  * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
jjg@111:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@111:  *
jjg@111:  * This code is free software; you can redistribute it and/or modify it
jjg@111:  * under the terms of the GNU General Public License version 2 only, as
ohair@554:  * published by the Free Software Foundation.  Oracle designates this
jjg@111:  * particular file as subject to the "Classpath" exception as provided
ohair@554:  * by Oracle in the LICENSE file that accompanied this code.
jjg@111:  *
jjg@111:  * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@111:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@111:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jjg@111:  * version 2 for more details (a copy is included in the LICENSE file that
jjg@111:  * accompanied this code).
jjg@111:  *
jjg@111:  * You should have received a copy of the GNU General Public License version
jjg@111:  * 2 along with this work; if not, write to the Free Software Foundation,
jjg@111:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@111:  *
ohair@554:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554:  * or visit www.oracle.com if you need additional information or have any
ohair@554:  * questions.
jjg@111:  */
jjg@111: 
jjg@111: package com.sun.tools.javac.parser;
jjg@111: 
jjg@111: import com.sun.tools.javac.code.Source;
jjg@111: import com.sun.tools.javac.tree.TreeMaker;
jjg@111: import com.sun.tools.javac.util.Context;
jjg@111: import com.sun.tools.javac.util.Log;
jjg@113: import com.sun.tools.javac.util.Names;
jjg@111: import com.sun.tools.javac.util.Options;
jjg@111: 
jjg@111: /**
jjg@111:  * A factory for creating parsers.
jjg@333:  *
jjg@581:  * <p><b>This is NOT part of any supported API.
jjg@333:  * If you write code that depends on this, you do so at your own risk.
jjg@333:  * This code and its internal interfaces are subject to change or
jjg@333:  * deletion without notice.</b>
jjg@111:  */
jjg@111: public class ParserFactory {
jjg@111: 
jjg@111:     /** The context key for the parser factory. */
jjg@111:     protected static final Context.Key<ParserFactory> parserFactoryKey = new Context.Key<ParserFactory>();
jjg@111: 
jjg@111:     public static ParserFactory instance(Context context) {
jjg@111:         ParserFactory instance = context.get(parserFactoryKey);
jjg@111:         if (instance == null) {
jjg@111:             instance = new ParserFactory(context);
jjg@111:         }
jjg@111:         return instance;
jjg@111:     }
jjg@111: 
jjg@111:     final TreeMaker F;
jjg@111:     final Log log;
mcimadamore@1113:     final Tokens tokens;
jjg@111:     final Source source;
jjg@113:     final Names names;
jjg@111:     final Options options;
jjg@695:     final ScannerFactory scannerFactory;
jjg@111: 
jjg@111:     protected ParserFactory(Context context) {
jjg@111:         super();
jjg@111:         context.put(parserFactoryKey, this);
jjg@111:         this.F = TreeMaker.instance(context);
jjg@111:         this.log = Log.instance(context);
jjg@113:         this.names = Names.instance(context);
mcimadamore@1113:         this.tokens = Tokens.instance(context);
jjg@111:         this.source = Source.instance(context);
jjg@111:         this.options = Options.instance(context);
jjg@695:         this.scannerFactory = ScannerFactory.instance(context);
jjg@111:     }
jjg@111: 
jjg@111:     public Parser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) {
jjg@695:         Lexer lexer = scannerFactory.newScanner(input, keepDocComments);
ksrini@1138:         return new JavacParser(this, lexer, keepDocComments, keepLineMap, keepEndPos);
jjg@111:     }
jjg@111: }