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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.utilities.*;
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29
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30 public class BytecodeMultiANewArray extends BytecodeWithKlass {
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31 BytecodeMultiANewArray(Method method, int bci) {
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32 super(method, bci);
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33 }
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34
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35 public Klass getKlass() {
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36 return super.getKlass();
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37 }
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38
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39 public int getDimension() {
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40 return 0xFF & javaByteAt(2);
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41 }
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42
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43 public void verify() {
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44 if (Assert.ASSERTS_ENABLED) {
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45 Assert.that(isValid(), "check multianewarray");
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46 }
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47 }
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48
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49 public boolean isValid() {
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50 return javaCode() == Bytecodes._multianewarray;
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51 }
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52
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53 public static BytecodeMultiANewArray at(Method method, int bci) {
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54 BytecodeMultiANewArray b = new BytecodeMultiANewArray(method, bci);
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55 if (Assert.ASSERTS_ENABLED) {
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56 b.verify();
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57 }
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58 return b;
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59 }
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60
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61 /** Like at, but returns null if the BCI is not at multianewarray */
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62 public static BytecodeMultiANewArray atCheck(Method method, int bci) {
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63 BytecodeMultiANewArray b = new BytecodeMultiANewArray(method, bci);
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64 return (b.isValid() ? b : null);
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65 }
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66
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67 public static BytecodeMultiANewArray at(BytecodeStream bcs) {
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68 return new BytecodeMultiANewArray(bcs.method(), bcs.bci());
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69 }
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70
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71 public String toString() {
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72 StringBuffer buf = new StringBuffer();
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73 buf.append(super.toString());
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74 buf.append(spaces);
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75 buf.append(Integer.toString(getDimension()));
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76 return buf.toString();
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77 }
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78 }
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