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1 package org.apache.bcel.generic; 2 3 /* ==================================================================== 4 * The Apache Software License, Version 1.1 5 * 6 * Copyright (c) 2001 The Apache Software Foundation. All rights 7 * reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. The end-user documentation included with the redistribution, 22 * if any, must include the following acknowledgment: 23 * "This product includes software developed by the 24 * Apache Software Foundation (http://www.apache.org/)." 25 * Alternately, this acknowledgment may appear in the software itself, 26 * if and wherever such third-party acknowledgments normally appear. 27 * 28 * 4. The names "Apache" and "Apache Software Foundation" and 29 * "Apache BCEL" must not be used to endorse or promote products 30 * derived from this software without prior written permission. For 31 * written permission, please contact apache@apache.org. 32 * 33 * 5. Products derived from this software may not be called "Apache", 34 * "Apache BCEL", nor may "Apache" appear in their name, without 35 * prior written permission of the Apache Software Foundation. 36 * 37 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 38 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 39 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 41 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 42 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 44 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 45 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 46 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 47 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 48 * SUCH DAMAGE. 49 * ==================================================================== 50 * 51 * This software consists of voluntary contributions made by many 52 * individuals on behalf of the Apache Software Foundation. For more 53 * information on the Apache Software Foundation, please see 54 * <http://www.apache.org/>;. 55 */ 56 import org.apache.bcel.classfile.*; 57 58 /*** 59 * Super class for InvokeInstruction and FieldInstruction, since they have 60 * some methods in common! 61 * 62 * @version $Id: FieldOrMethod.java,v 1.1.1.1 2001/10/29 20:00:13 jvanzyl Exp $ 63 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 64 */ 65 public abstract class FieldOrMethod extends CPInstruction implements LoadClass { 66 /*** 67 * Empty constructor needed for the Class.newInstance() statement in 68 * Instruction.readInstruction(). Not to be used otherwise. 69 */ 70 FieldOrMethod() {} 71 72 /*** 73 * @param index to constant pool 74 */ 75 protected FieldOrMethod(short opcode, int index) { 76 super(opcode, index); 77 } 78 79 /*** @return signature of referenced method/field. 80 */ 81 public String getSignature(ConstantPoolGen cpg) { 82 ConstantPool cp = cpg.getConstantPool(); 83 ConstantCP cmr = (ConstantCP)cp.getConstant(index); 84 ConstantNameAndType cnat = (ConstantNameAndType)cp.getConstant(cmr.getNameAndTypeIndex()); 85 86 return ((ConstantUtf8)cp.getConstant(cnat.getSignatureIndex())).getBytes(); 87 } 88 89 /*** @return name of referenced method/field. 90 */ 91 public String getName(ConstantPoolGen cpg) { 92 ConstantPool cp = cpg.getConstantPool(); 93 ConstantCP cmr = (ConstantCP)cp.getConstant(index); 94 ConstantNameAndType cnat = (ConstantNameAndType)cp.getConstant(cmr.getNameAndTypeIndex()); 95 return ((ConstantUtf8)cp.getConstant(cnat.getNameIndex())).getBytes(); 96 } 97 98 /*** @return name of the referenced class/interface 99 */ 100 public String getClassName(ConstantPoolGen cpg) { 101 ConstantPool cp = cpg.getConstantPool(); 102 ConstantCP cmr = (ConstantCP)cp.getConstant(index); 103 return cp.getConstantString(cmr.getClassIndex(), org.apache.bcel.Constants.CONSTANT_Class).replace('/', '.'); 104 } 105 106 /*** @return type of the referenced class/interface 107 */ 108 public ObjectType getClassType(ConstantPoolGen cpg) { 109 return new ObjectType(getClassName(cpg)); 110 } 111 112 /*** @return type of the referenced class/interface 113 */ 114 public ObjectType getLoadClassType(ConstantPoolGen cpg) { 115 return getClassType(cpg); 116 } 117 }

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