ParserFactory.java revision 580
0N/A/*
0N/A * Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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0N/A * This code is free software; you can redistribute it and/or modify it
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0N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
0N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
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0N/A */
0N/A
0N/Apackage com.sun.tools.javac.parser;
0N/A
0N/Aimport com.sun.tools.javac.code.Source;
0N/Aimport com.sun.tools.javac.tree.TreeMaker;
0N/Aimport com.sun.tools.javac.util.Context;
0N/Aimport com.sun.tools.javac.util.Log;
0N/Aimport com.sun.tools.javac.util.Names;
0N/Aimport com.sun.tools.javac.util.Options;
0N/A
0N/A/**
0N/A * A factory for creating parsers.
0N/A *
0N/A * <p><b>This is NOT part of any supported API.
0N/A * If you write code that depends on this, you do so at your own risk.
0N/A * This code and its internal interfaces are subject to change or
0N/A * deletion without notice.</b>
0N/A */
0N/Apublic class ParserFactory {
0N/A
0N/A /** The context key for the parser factory. */
0N/A protected static final Context.Key<ParserFactory> parserFactoryKey = new Context.Key<ParserFactory>();
0N/A
0N/A public static ParserFactory instance(Context context) {
0N/A ParserFactory instance = context.get(parserFactoryKey);
0N/A if (instance == null) {
0N/A instance = new ParserFactory(context);
0N/A }
0N/A return instance;
0N/A }
0N/A
0N/A final TreeMaker F;
0N/A final Log log;
0N/A final Keywords keywords;
0N/A final Source source;
0N/A final Names names;
0N/A final Options options;
0N/A final Scanner.Factory scannerFactory;
0N/A
0N/A protected ParserFactory(Context context) {
0N/A super();
0N/A context.put(parserFactoryKey, this);
0N/A this.F = TreeMaker.instance(context);
0N/A this.log = Log.instance(context);
0N/A this.names = Names.instance(context);
0N/A this.keywords = Keywords.instance(context);
0N/A this.source = Source.instance(context);
0N/A this.options = Options.instance(context);
0N/A this.scannerFactory = Scanner.Factory.instance(context);
0N/A }
0N/A
0N/A public Parser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) {
0N/A Lexer lexer = scannerFactory.newScanner(input);
0N/A if (keepEndPos) {
0N/A return new EndPosParser(this, lexer, keepDocComments, keepLineMap);
0N/A } else {
0N/A return new JavacParser(this, lexer, keepDocComments, keepLineMap);
0N/A }
0N/A }
0N/A}
0N/A