Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/StackValue.java @ 12226:7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
Reviewed-by: coleenp, mgerdin, hseigel
| author | ehelin |
|---|---|
| date | Mon, 12 Aug 2013 17:37:02 +0200 |
| parents | 7588156f5cf9 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2000, 2009, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.runtime; | |
| 26 | |
| 27 import java.io.*; | |
| 28 import sun.jvm.hotspot.debugger.*; | |
| 29 import sun.jvm.hotspot.utilities.*; | |
| 30 | |
| 31 public class StackValue { | |
| 32 private int type; | |
| 33 private OopHandle handleValue; | |
| 34 private long integerValue; | |
| 35 | |
| 36 public StackValue() { | |
| 37 type = BasicType.getTConflict(); | |
| 38 } | |
| 39 | |
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40 public StackValue(OopHandle h, long scalar_replaced) { |
| 0 | 41 handleValue = h; |
| 42 type = BasicType.getTObject(); | |
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43 integerValue = scalar_replaced; |
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44 Assert.that(integerValue == 0 || handleValue == null, "not null object should not be marked as scalar replaced"); |
| 0 | 45 } |
| 46 | |
| 47 public StackValue(long i) { | |
| 48 integerValue = i; | |
| 49 type = BasicType.getTInt(); | |
| 50 } | |
| 51 | |
| 52 /** This returns one of the "enum" values in BasicType.java */ | |
| 53 public int getType() { | |
| 54 return type; | |
| 55 } | |
| 56 | |
| 57 public OopHandle getObject() { | |
| 58 if (Assert.ASSERTS_ENABLED) { | |
| 59 Assert.that(type == BasicType.getTObject(), "type check"); | |
| 60 } | |
| 61 return handleValue; | |
| 62 } | |
| 63 | |
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64 boolean objIsScalarReplaced() { |
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65 if (Assert.ASSERTS_ENABLED) { |
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66 Assert.that(type == BasicType.getTObject(), "type check"); |
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67 } |
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68 return integerValue != 0; |
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69 } |
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70 |
| 0 | 71 public long getInteger() { |
| 72 if (Assert.ASSERTS_ENABLED) { | |
| 73 Assert.that(type == BasicType.getTInt(), "type check"); | |
| 74 } | |
| 75 return integerValue; | |
| 76 } | |
| 77 | |
| 78 public boolean equals(Object arg) { | |
| 79 if (arg == null) { | |
| 80 return false; | |
| 81 } | |
| 82 | |
| 83 if (!arg.getClass().equals(getClass())) { | |
| 84 return false; | |
| 85 } | |
| 86 | |
| 87 StackValue sv = (StackValue) arg; | |
| 88 if (type != sv.type) { | |
| 89 return false; | |
| 90 } | |
| 91 if (type == BasicType.getTObject()) { | |
| 92 return handleValue.equals(sv.handleValue); | |
| 93 } else if (type == BasicType.getTInt()) { | |
| 94 return (integerValue == sv.integerValue); | |
| 95 } else { | |
| 96 // Conflict type (not yet used) | |
| 97 return true; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 public int hashCode() { | |
| 102 if (type == BasicType.getTObject()) { | |
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103 return handleValue != null ? handleValue.hashCode() : 5; |
| 0 | 104 } else { |
| 105 // Returns 0 for conflict type | |
| 106 return (int) integerValue; | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 public void print() { | |
| 111 printOn(System.out); | |
| 112 } | |
| 113 | |
| 114 public void printOn(PrintStream tty) { | |
| 115 if (type == BasicType.getTInt()) { | |
| 116 tty.print(integerValue + " (long) " + (int) integerValue + " (int)"); | |
| 117 } else if (type == BasicType.getTObject()) { | |
| 118 tty.print("<" + handleValue + ">"); | |
| 119 } else if (type == BasicType.getTConflict()) { | |
| 120 tty.print("conflict"); | |
| 121 } else { | |
| 122 throw new RuntimeException("should not reach here"); | |
| 123 } | |
| 124 } | |
| 125 } |