DebuggerNode.java revision 1204:9597425b6b38 
1/*
2 * Copyright (c) 2014, 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.nashorn.internal.ir;
27
28import jdk.nashorn.internal.ir.annotations.Immutable;
29import jdk.nashorn.internal.ir.visitor.NodeVisitor;
30
31/**
32 * IR representation for a debugger statement.
33 */
34@Immutable
35public final class DebuggerNode extends Statement {
36    private static final long serialVersionUID = 1L;
37
38    /**
39     * Constructor
40     *
41     * @param lineNumber line number
42     * @param token      token
43     * @param finish     finish
44     */
45    public DebuggerNode(final int lineNumber, final long token, final int finish) {
46        super(lineNumber, token, finish);
47    }
48
49    @Override
50    public Node accept(final NodeVisitor<? extends LexicalContext> visitor) {
51        if (visitor.enterDebuggerNode(this)) {
52            return visitor.leaveDebuggerNode(this);
53        }
54
55        return this;
56    }
57
58    @Override
59    public void toString(final StringBuilder sb, final boolean printType) {
60        sb.append("debugger");
61    }
62}
63
64