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annotate graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMetaspaceConstantImpl.java @ 18296:a6e7531d3dd3

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made HotSpotMetaspaceConstantImpl.forMetaspaceObject and HotSpotMetaspaceConstantImpl.getMetaspaceObject package private
author Doug Simon <doug.simon@oracle.com>
date Thu, 06 Nov 2014 23:12:41 +0100
parents ae181ec869c5
children fb289eb7243d
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1 /*
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2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
db4254246f9a Remove Constant.forObject and Constant.asObject to improve compiler/VM separation
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.meta;
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24
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25 import java.util.*;
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26
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27 import com.oracle.graal.api.meta.*;
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28 import com.oracle.graal.hotspot.HotSpotVMConfig.CompressEncoding;
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29
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30 public final class HotSpotMetaspaceConstantImpl extends PrimitiveConstant implements HotSpotMetaspaceConstant, VMConstant {
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31
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32 private static final long serialVersionUID = 1003463314013122983L;
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33
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34 static HotSpotMetaspaceConstantImpl forMetaspaceObject(Kind kind, long primitive, Object metaspaceObject, boolean compressed) {
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35 return new HotSpotMetaspaceConstantImpl(kind, primitive, metaspaceObject, compressed);
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36 }
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37
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38 static Object getMetaspaceObject(JavaConstant constant) {
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39 return ((HotSpotMetaspaceConstantImpl) constant).metaspaceObject;
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40 }
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41
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42 private final Object metaspaceObject;
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43 private final boolean compressed;
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44
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45 private HotSpotMetaspaceConstantImpl(Kind kind, long primitive, Object metaspaceObject, boolean compressed) {
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46 super(kind, primitive);
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47 this.metaspaceObject = metaspaceObject;
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48 this.compressed = compressed;
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49 }
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50
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51 @Override
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52 public int hashCode() {
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53 return super.hashCode() ^ System.identityHashCode(metaspaceObject);
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54 }
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55
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56 @Override
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57 public boolean equals(Object o) {
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58 return o == this || (o instanceof HotSpotMetaspaceConstantImpl && super.equals(o) && Objects.equals(metaspaceObject, ((HotSpotMetaspaceConstantImpl) o).metaspaceObject));
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59 }
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60
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61 @Override
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62 public String toString() {
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63 return super.toString() + "{" + metaspaceObject + (compressed ? ";compressed}" : "}");
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64 }
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65
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66 public boolean isCompressed() {
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67 return compressed;
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68 }
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69
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70 public JavaConstant compress(CompressEncoding encoding) {
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71 assert !isCompressed();
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72 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(Kind.Int, encoding.compress(asLong()), metaspaceObject, true);
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73 assert res.isCompressed();
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74 return res;
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75 }
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76
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77 public JavaConstant uncompress(CompressEncoding encoding) {
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78 assert isCompressed();
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79 HotSpotMetaspaceConstantImpl res = HotSpotMetaspaceConstantImpl.forMetaspaceObject(Kind.Long, encoding.uncompress(asInt()), metaspaceObject, false);
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80 assert !res.isCompressed();
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81 return res;
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82 }
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83
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84 public HotSpotResolvedObjectType asResolvedJavaType() {
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85 if (metaspaceObject instanceof HotSpotResolvedObjectType) {
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86 return (HotSpotResolvedObjectType) metaspaceObject;
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87 }
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88 return null;
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89 }
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90 }