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comparison jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMetaspaceConstantImpl.java @ 22672:1bbd4a7c274b

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Rename jdk.internal.jvmci to jdk.vm.ci
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Thu, 08 Oct 2015 17:28:41 -0700
parents jvmci/jdk.internal.jvmci.hotspot/src/jdk/internal/jvmci/hotspot/HotSpotMetaspaceConstantImpl.java@ed53e370f04c
children f8178417d018
comparison
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22671:97f30e4d0e95 22672:1bbd4a7c274b
1 /*
2 * Copyright (c) 2014, 2015, 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 package jdk.vm.ci.hotspot;
24
25 import java.util.Objects;
26
27 import jdk.vm.ci.meta.Constant;
28 import jdk.vm.ci.meta.VMConstant;
29
30 final class HotSpotMetaspaceConstantImpl implements HotSpotMetaspaceConstant, VMConstant, HotSpotProxified {
31
32 static HotSpotMetaspaceConstantImpl forMetaspaceObject(MetaspaceWrapperObject metaspaceObject, boolean compressed) {
33 return new HotSpotMetaspaceConstantImpl(metaspaceObject, compressed);
34 }
35
36 static MetaspaceWrapperObject getMetaspaceObject(Constant constant) {
37 return ((HotSpotMetaspaceConstantImpl) constant).metaspaceObject;
38 }
39
40 private final MetaspaceWrapperObject metaspaceObject;
41 private final boolean compressed;
42
43 private HotSpotMetaspaceConstantImpl(MetaspaceWrapperObject metaspaceObject, boolean compressed) {
44 this.metaspaceObject = metaspaceObject;
45 this.compressed = compressed;
46 }
47
48 @Override
49 public int hashCode() {
50 return System.identityHashCode(metaspaceObject) ^ (compressed ? 1 : 2);
51 }
52
53 @Override
54 public boolean equals(Object o) {
55 if (o == this) {
56 return true;
57 }
58 if (!(o instanceof HotSpotMetaspaceConstantImpl)) {
59 return false;
60 }
61
62 HotSpotMetaspaceConstantImpl other = (HotSpotMetaspaceConstantImpl) o;
63 return Objects.equals(this.metaspaceObject, other.metaspaceObject) && this.compressed == other.compressed;
64 }
65
66 @Override
67 public String toValueString() {
68 return String.format("meta{%s%s}", metaspaceObject, compressed ? ";compressed" : "");
69 }
70
71 @Override
72 public String toString() {
73 return toValueString();
74 }
75
76 public boolean isDefaultForKind() {
77 return false;
78 }
79
80 public boolean isCompressed() {
81 return compressed;
82 }
83
84 public Constant compress() {
85 assert !isCompressed();
86 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(metaspaceObject, true);
87 assert res.isCompressed();
88 return res;
89 }
90
91 public Constant uncompress() {
92 assert isCompressed();
93 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(metaspaceObject, false);
94 assert !res.isCompressed();
95 return res;
96 }
97
98 public HotSpotResolvedObjectType asResolvedJavaType() {
99 if (metaspaceObject instanceof HotSpotResolvedObjectType) {
100 return (HotSpotResolvedObjectType) metaspaceObject;
101 }
102 return null;
103 }
104
105 public HotSpotResolvedJavaMethod asResolvedJavaMethod() {
106 if (metaspaceObject instanceof HotSpotResolvedJavaMethod) {
107 return (HotSpotResolvedJavaMethod) metaspaceObject;
108 }
109 return null;
110 }
111 }