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 java.util.function.Function; 29 import jdk.nashorn.internal.codegen.types.Type; 30 import jdk.nashorn.internal.ir.annotations.Immutable; 31 import jdk.nashorn.internal.ir.visitor.NodeVisitor; 32 33 /** 34 * IR representation for an error expression. 35 */ 36 @Immutable 37 public final class ErrorNode extends Expression { 38 private static final long serialVersionUID = 1L; 39 40 /** 41 * Constructor 42 * 43 * @param token token 44 * @param finish finish 45 */ 46 public ErrorNode(final long token, final int finish) { 47 super(token, finish); 48 } 49 50 @Override 51 public Type getType() { 52 return Type.OBJECT; 53 } 54 55 @Override 56 public Node accept(final NodeVisitor<? extends LexicalContext> visitor) { 57 if (visitor.enterErrorNode(this)) { 58 return visitor.leaveErrorNode(this); 59 } 60 61 return this; 62 } 63 64 @Override 65 public void toString(final StringBuilder sb, final boolean printType) { 66 sb.append("<error>"); 67 } 68 } 69