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1 /*
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2 * Copyright 2002-2003 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 package sun.jvm.hotspot.interpreter;
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26
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27 import sun.jvm.hotspot.oops.*;
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28 import sun.jvm.hotspot.runtime.*;
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29
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30 // getfield, getstatic, putfield or putstatic
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31
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32 public abstract class BytecodeGetPut extends BytecodeWithCPIndex {
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33 BytecodeGetPut(Method method, int bci) {
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34 super(method, bci);
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35 }
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36
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37 // returns the name of the accessed field
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38 public Symbol name() {
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39 ConstantPool cp = method().getConstants();
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40 return cp.getNameRefAt(index());
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41 }
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42
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43 // returns the signature of the accessed field
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44 public Symbol signature() {
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45 ConstantPool cp = method().getConstants();
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46 return cp.getSignatureRefAt(index());
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47 }
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48
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49 public Field getField() {
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50 return method().getConstants().getFieldRefAt(index());
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51 }
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52
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53 public String toString() {
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54 StringBuffer buf = new StringBuffer();
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55 buf.append(getJavaBytecodeName());
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56 buf.append(spaces);
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57 buf.append('#');
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58 buf.append(Integer.toString(indexForFieldOrMethod()));
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59 buf.append(" [Field ");
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60 StringBuffer sigBuf = new StringBuffer();
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61 new SignatureConverter(signature(), sigBuf).dispatchField();
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62 buf.append(sigBuf.toString().replace('/', '.'));
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63 buf.append(spaces);
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64 buf.append(name().asString());
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65 buf.append("]");
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66 if (code() != javaCode()) {
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67 buf.append(spaces);
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68 buf.append('[');
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69 buf.append(getBytecodeName());
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70 buf.append(']');
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71 }
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72 return buf.toString();
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73 }
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74
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75 public abstract boolean isStatic();
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76 }
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