| /* |
| * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.nashorn.internal.ir; |
| |
| import jdk.nashorn.internal.ir.annotations.Immutable; |
| import jdk.nashorn.internal.ir.visitor.NodeVisitor; |
| |
| /** |
| * IR representation for CONTINUE statements. |
| */ |
| @Immutable |
| public class ContinueNode extends Statement { |
| |
| private IdentNode label; |
| |
| /** |
| * Constructor |
| * |
| * @param lineNumber line number |
| * @param token token |
| * @param finish finish |
| * @param label label for break or null if none |
| */ |
| public ContinueNode(final int lineNumber, final long token, final int finish, final IdentNode label) { |
| super(lineNumber, token, finish); |
| this.label = label; |
| } |
| |
| @Override |
| public boolean hasGoto() { |
| return true; |
| } |
| |
| @Override |
| public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { |
| if (visitor.enterContinueNode(this)) { |
| return visitor.leaveContinueNode(this); |
| } |
| |
| return this; |
| } |
| |
| /** |
| * Get the label for this break node |
| * @return label, or null if none |
| */ |
| public IdentNode getLabel() { |
| return label; |
| } |
| |
| @Override |
| public void toString(final StringBuilder sb) { |
| sb.append("continue"); |
| |
| if (label != null) { |
| sb.append(' '); |
| label.toString(sb); |
| } |
| } |
| } |
| |