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comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotMetaspaceConstantImpl.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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21550:f48a6cea31eb 21551:5324104ac4f3
1 /*
2 * Copyright (c) 2014, 2014, 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 com.oracle.jvmci.hotspot;
24
25 import java.util.*;
26
27 import com.oracle.graal.api.meta.*;
28 import com.oracle.jvmci.hotspot.HotSpotVMConfig.*;
29
30 public final class HotSpotMetaspaceConstantImpl extends PrimitiveConstant implements HotSpotMetaspaceConstant, VMConstant, HotSpotProxified {
31
32 static HotSpotMetaspaceConstantImpl forMetaspaceObject(Kind kind, long primitive, Object metaspaceObject, boolean compressed) {
33 return new HotSpotMetaspaceConstantImpl(kind, primitive, metaspaceObject, compressed);
34 }
35
36 static Object getMetaspaceObject(Constant constant) {
37 return ((HotSpotMetaspaceConstantImpl) constant).metaspaceObject;
38 }
39
40 private final Object metaspaceObject;
41 private final boolean compressed;
42
43 private HotSpotMetaspaceConstantImpl(Kind kind, long primitive, Object metaspaceObject, boolean compressed) {
44 super(kind, primitive);
45 this.metaspaceObject = metaspaceObject;
46 this.compressed = compressed;
47 }
48
49 @Override
50 public int hashCode() {
51 return super.hashCode() ^ System.identityHashCode(metaspaceObject);
52 }
53
54 @Override
55 public boolean equals(Object o) {
56 return o == this || (o instanceof HotSpotMetaspaceConstantImpl && super.equals(o) && Objects.equals(metaspaceObject, ((HotSpotMetaspaceConstantImpl) o).metaspaceObject));
57 }
58
59 @Override
60 public String toString() {
61 return super.toString() + "{" + metaspaceObject + (compressed ? ";compressed}" : "}");
62 }
63
64 public boolean isCompressed() {
65 return compressed;
66 }
67
68 public JavaConstant compress(CompressEncoding encoding) {
69 assert !isCompressed();
70 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(Kind.Int, encoding.compress(asLong()), metaspaceObject, true);
71 assert res.isCompressed();
72 return res;
73 }
74
75 public JavaConstant uncompress(CompressEncoding encoding) {
76 assert isCompressed();
77 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(Kind.Long, encoding.uncompress(asInt()), metaspaceObject, false);
78 assert !res.isCompressed();
79 return res;
80 }
81
82 public HotSpotResolvedObjectType asResolvedJavaType() {
83 if (metaspaceObject instanceof HotSpotResolvedObjectType) {
84 return (HotSpotResolvedObjectType) metaspaceObject;
85 }
86 return null;
87 }
88
89 public long rawValue() {
90 return asLong();
91 }
92 }