author | jjg |
Thu, 10 Jun 2010 16:08:01 -0700 | |
changeset 5847 | 1908176fd6e3 |
parent 5520 | 86e4b9a9da40 |
child 6716 | 71df48777dd1 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.tools.javac.parser; |
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import com.sun.tools.javac.code.Source; |
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import com.sun.tools.javac.tree.TreeMaker; |
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import com.sun.tools.javac.util.Context; |
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import com.sun.tools.javac.util.Log; |
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import com.sun.tools.javac.util.Names; |
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import com.sun.tools.javac.util.Options; |
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/** |
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* A factory for creating parsers. |
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* |
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* <p><b>This is NOT part of any supported API. |
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* If you write code that depends on this, you do so at your own risk. |
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* This code and its internal interfaces are subject to change or |
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* deletion without notice.</b> |
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*/ |
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public class ParserFactory { |
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/** The context key for the parser factory. */ |
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protected static final Context.Key<ParserFactory> parserFactoryKey = new Context.Key<ParserFactory>(); |
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public static ParserFactory instance(Context context) { |
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ParserFactory instance = context.get(parserFactoryKey); |
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if (instance == null) { |
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instance = new ParserFactory(context); |
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} |
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return instance; |
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} |
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final TreeMaker F; |
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final Log log; |
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final Keywords keywords; |
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final Source source; |
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final Names names; |
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final Options options; |
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final Scanner.Factory scannerFactory; |
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protected ParserFactory(Context context) { |
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super(); |
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context.put(parserFactoryKey, this); |
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this.F = TreeMaker.instance(context); |
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this.log = Log.instance(context); |
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this.names = Names.instance(context); |
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this.keywords = Keywords.instance(context); |
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this.source = Source.instance(context); |
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this.options = Options.instance(context); |
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this.scannerFactory = Scanner.Factory.instance(context); |
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} |
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public Parser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) { |
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Lexer lexer = scannerFactory.newScanner(input); |
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if (keepEndPos) { |
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return new EndPosParser(this, lexer, keepDocComments, keepLineMap); |
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} else { |
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return new JavacParser(this, lexer, keepDocComments, keepLineMap); |
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} |
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} |
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} |