ReplParserFactory.java revision 3953:ceeaf4cf083f 
1/*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package jdk.jshell;
27
28import com.sun.tools.javac.parser.JavacParser;
29import com.sun.tools.javac.parser.ParserFactory;
30import com.sun.tools.javac.parser.ScannerFactory;
31import com.sun.tools.javac.util.Context;
32
33/**
34 *
35 * @author Robert Field
36 */
37class ReplParserFactory extends ParserFactory {
38
39    public static ParserFactory instance(Context context) {
40        ParserFactory instance = context.get(parserFactoryKey);
41        if (instance == null) {
42            instance = new ReplParserFactory(context);
43        }
44        return instance;
45    }
46
47    private final ScannerFactory scannerFactory;
48
49    protected ReplParserFactory(Context context) {
50        super(context);
51        this.scannerFactory = ScannerFactory.instance(context);
52    }
53
54    @Override
55    public JavacParser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap) {
56        com.sun.tools.javac.parser.Lexer lexer = scannerFactory.newScanner(input, keepDocComments);
57        return new ReplParser(this, lexer, keepDocComments, keepLineMap, keepEndPos);
58    }
59
60    @Override
61    public JavacParser newParser(CharSequence input, boolean keepDocComments, boolean keepEndPos, boolean keepLineMap, boolean parseModuleInfo) {
62        return newParser(input, keepDocComments, keepEndPos, keepLineMap);
63    }
64}
65