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 26 package jdk.nashorn.internal.ir; 27 28 import jdk.nashorn.internal.codegen.types.Type; 29 import jdk.nashorn.internal.ir.annotations.Immutable; 30 import jdk.nashorn.internal.ir.visitor.NodeVisitor; 31 32 /** 33 * IR representation for an error expression. 34 */ 35 @Immutable 36 public final class ErrorNode extends Expression { 37 private static final long serialVersionUID = 1L; 38 39 /** 40 * Constructor 41 * 42 * @param token token 43 * @param finish finish 44 */ 45 public ErrorNode(final long token, final int finish) { 46 super(token, finish); 47 } 48 49 @Override 50 public Type getType() { 51 return Type.OBJECT; 52 } 53 54 @Override 55 public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { 56 if (visitor.enterErrorNode(this)) { 57 return visitor.leaveErrorNode(this); 58 } 59 60 return this; 61 } 62 63 @Override 64 public void toString(final StringBuilder sb, final boolean printType) { 65 sb.append("<error>"); 66 } 67 } 68