BreakNode.java revision 953:221a84ef44c0
1226031Sstas/* 2226031Sstas * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3226031Sstas * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4226031Sstas * 5226031Sstas * This code is free software; you can redistribute it and/or modify it 6226031Sstas * under the terms of the GNU General Public License version 2 only, as 7226031Sstas * published by the Free Software Foundation. Oracle designates this 8226031Sstas * particular file as subject to the "Classpath" exception as provided 9226031Sstas * by Oracle in the LICENSE file that accompanied this code. 10226031Sstas * 11226031Sstas * This code is distributed in the hope that it will be useful, but WITHOUT 12226031Sstas * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13226031Sstas * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14226031Sstas * version 2 for more details (a copy is included in the LICENSE file that 15226031Sstas * accompanied this code). 16226031Sstas * 17226031Sstas * You should have received a copy of the GNU General Public License version 18226031Sstas * 2 along with this work; if not, write to the Free Software Foundation, 19226031Sstas * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20226031Sstas * 21226031Sstas * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22226031Sstas * or visit www.oracle.com if you need additional information or have any 23226031Sstas * questions. 24226031Sstas */ 25226031Sstas 26226031Sstaspackage jdk.nashorn.internal.ir; 27226031Sstas 28226031Sstasimport jdk.nashorn.internal.ir.annotations.Immutable; 29226031Sstasimport jdk.nashorn.internal.ir.visitor.NodeVisitor; 30226031Sstas 31226031Sstas/** 32226031Sstas * IR representation for {@code break} statements. 33226031Sstas */ 34226031Sstas@Immutable 35226031Sstaspublic final class BreakNode extends JumpStatement { 36226031Sstas 37226031Sstas /** 38226031Sstas * Constructor 39226031Sstas * 40226031Sstas * @param lineNumber line number 41226031Sstas * @param token token 42226031Sstas * @param finish finish 43226031Sstas * @param labelName label name for break or null if none 44226031Sstas */ 45226031Sstas public BreakNode(final int lineNumber, final long token, final int finish, final String labelName) { 46226031Sstas super(lineNumber, token, finish, labelName); 47226031Sstas } 48226031Sstas 49226031Sstas private BreakNode(final BreakNode breakNode, final LocalVariableConversion conversion) { 50226031Sstas super(breakNode, conversion); 51226031Sstas } 52226031Sstas 53226031Sstas @Override 54226031Sstas public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { 55226031Sstas if (visitor.enterBreakNode(this)) { 56226031Sstas return visitor.leaveBreakNode(this); 57226031Sstas } 58226031Sstas 59226031Sstas return this; 60226031Sstas } 61226031Sstas 62226031Sstas @Override 63226031Sstas JumpStatement createNewJumpStatement(final LocalVariableConversion conversion) { 64226031Sstas return new BreakNode(this, conversion); 65226031Sstas } 66226031Sstas 67226031Sstas @Override 68226031Sstas String getStatementName() { 69226031Sstas return "break"; 70226031Sstas } 71226031Sstas} 72226031Sstas