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annotate agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicEnumType.java @ 3944:35c656d0b685
7090654: nightly failures after 7086585
Reviewed-by: kvn
author | never |
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date | Wed, 14 Sep 2011 13:57:32 -0700 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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2 * Copyright (c) 2001, 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 |
c18cbe5936b8
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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.debugger.cdbg.basic; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.debugger.cdbg.*; | |
30 import sun.jvm.hotspot.utilities.Assert; | |
31 | |
32 public class BasicEnumType extends BasicIntType implements EnumType { | |
33 // Integer type or lazy type | |
34 private Type underlyingType; | |
35 | |
36 private static class Enum { | |
37 String name; | |
38 long value; | |
39 Enum(String name, long value) { | |
40 this.name = name; | |
41 this.value = value; | |
42 } | |
43 | |
44 String getName() { return name; } | |
45 long getValue() { return value; } | |
46 } | |
47 private List/*<Enum>*/ enums; | |
48 | |
49 /** Underlying type of enum must be an integer type (or as yet | |
50 unresolved) */ | |
51 | |
52 public BasicEnumType(String name, Type underlyingType) { | |
53 this(name, underlyingType, 0); | |
54 } | |
55 | |
56 private BasicEnumType(String name, Type underlyingType, int cvAttributes) { | |
57 super(name, 0, false, cvAttributes); | |
58 this.underlyingType = underlyingType; | |
59 } | |
60 | |
61 public EnumType asEnum() { return this; } | |
62 | |
63 public int getSize() { return underlyingType.getSize(); } | |
64 public boolean isUnsigned() { | |
65 if (underlyingType.isInt()) { | |
66 return ((IntType) underlyingType).isUnsigned(); | |
67 } | |
68 return false; | |
69 } | |
70 | |
71 public void addEnum(String name, long val) { | |
72 if (enums == null) { | |
73 enums = new ArrayList(); | |
74 } | |
75 enums.add(new Enum(name, val)); | |
76 } | |
77 | |
78 public int getNumEnumerates() { return enums.size(); } | |
79 public String getEnumName(int i) { return ((Enum) enums.get(i)).getName(); } | |
80 public long getEnumValue(int i) { return ((Enum) enums.get(i)).getValue(); } | |
81 | |
82 public String enumNameForValue(long val) { | |
83 if (enums == null) { | |
84 return null; | |
85 } | |
86 | |
87 for (Iterator iter = enums.iterator(); iter.hasNext(); ) { | |
88 Enum e = (Enum) iter.next(); | |
89 if (e.getValue() == val) { | |
90 return e.getName(); | |
91 } | |
92 } | |
93 | |
94 return null; | |
95 } | |
96 | |
97 Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) { | |
98 super.resolveTypes(db, listener); | |
99 underlyingType = db.resolveType(this, underlyingType, listener, "resolving enum type"); | |
100 if (Assert.ASSERTS_ENABLED) { | |
101 BasicType b = (BasicType) underlyingType; | |
102 Assert.that(b.isLazy() || b.isInt(), | |
103 "Underlying type of enum must be integer type (or unresolved due to error)"); | |
104 } | |
105 return this; | |
106 } | |
107 | |
108 public void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f) { | |
109 long val = a.getCIntegerAt(0, getSize(), isUnsigned()); | |
110 v.doEnum(f, val, enumNameForValue(val)); | |
111 } | |
112 | |
113 protected Type createCVVariant(int cvAttributes) { | |
114 BasicEnumType t = new BasicEnumType(getName(), underlyingType, cvAttributes); | |
115 t.enums = enums; | |
116 return t; | |
117 } | |
118 | |
119 public void visit(TypeVisitor v) { | |
120 v.doEnumType(this); | |
121 } | |
122 } |