1/* 2 * Copyright (c) 2002, 2003, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25package sun.jvm.hotspot.interpreter; 26 27import sun.jvm.hotspot.oops.*; 28import sun.jvm.hotspot.runtime.*; 29 30// getfield, getstatic, putfield or putstatic 31 32public abstract class BytecodeGetPut extends BytecodeWithCPIndex { 33 BytecodeGetPut(Method method, int bci) { 34 super(method, bci); 35 } 36 37 // returns the name of the accessed field 38 public Symbol name() { 39 ConstantPool cp = method().getConstants(); 40 return cp.getNameRefAt(index()); 41 } 42 43 // returns the signature of the accessed field 44 public Symbol signature() { 45 ConstantPool cp = method().getConstants(); 46 return cp.getSignatureRefAt(index()); 47 } 48 49 public Field getField() { 50 return method().getConstants().getFieldRefAt(index()); 51 } 52 53 public String toString() { 54 StringBuffer buf = new StringBuffer(); 55 buf.append(getJavaBytecodeName()); 56 buf.append(spaces); 57 buf.append('#'); 58 buf.append(Integer.toString(indexForFieldOrMethod())); 59 buf.append(" [Field "); 60 StringBuffer sigBuf = new StringBuffer(); 61 new SignatureConverter(signature(), sigBuf).dispatchField(); 62 buf.append(sigBuf.toString().replace('/', '.')); 63 buf.append(spaces); 64 buf.append(name().asString()); 65 buf.append("]"); 66 if (code() != javaCode()) { 67 buf.append(spaces); 68 buf.append('['); 69 buf.append(getBytecodeName()); 70 buf.append(']'); 71 } 72 return buf.toString(); 73 } 74 75 public abstract boolean isStatic(); 76} 77