1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.bcel.verifier.structurals; 18 19 import org.apache.bcel.Const; 20 import org.apache.bcel.Constants; 21 import org.apache.bcel.generic.ObjectType; 22 import org.apache.bcel.generic.ReferenceType; 23 24 /** 25 * This class represents an uninitialized object type; see The Java Virtual Machine Specification, Second Edition, page 26 * 147: 4.9.4 for more details. 27 */ 28 public class UninitializedObjectType extends ReferenceType implements Constants { 29 30 /** The "initialized" version. */ 31 private final ObjectType initialized; 32 33 /** 34 * Creates a new instance. 35 * 36 * @param objectType uninitialized object type. 37 */ 38 public UninitializedObjectType(final ObjectType objectType) { 39 super(Const.T_UNKNOWN, "<UNINITIALIZED OBJECT OF TYPE '" + objectType.getClassName() + "'>"); 40 initialized = objectType; 41 } 42 43 /** 44 * Returns true on equality of this and o. Equality means the ObjectType instances of "initialized" equal one another in 45 * this and the o instance. 46 */ 47 @Override 48 public boolean equals(final Object o) { 49 if (!(o instanceof UninitializedObjectType)) { 50 return false; 51 } 52 return initialized.equals(((UninitializedObjectType) o).initialized); 53 } 54 55 /** 56 * Returns the ObjectType of the same class as the one of the uninitialized object represented by this 57 * UninitializedObjectType instance. 58 * 59 * @return the ObjectType. 60 */ 61 public ObjectType getInitialized() { 62 return initialized; 63 } 64 65 /** 66 * @return a hash code value for the object. 67 */ 68 @Override 69 public int hashCode() { 70 return initialized.hashCode(); 71 } 72 }