Mercurial > hg > truffle
comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotObjectConstant.java @ 21551:5324104ac4f3
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 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
21550:f48a6cea31eb | 21551:5324104ac4f3 |
---|---|
1 /* | |
2 * Copyright (c) 2009, 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 com.oracle.jvmci.hotspot; | |
24 | |
25 import java.lang.invoke.*; | |
26 import java.util.*; | |
27 | |
28 import com.oracle.graal.api.meta.*; | |
29 | |
30 /** | |
31 * Represents a constant non-{@code null} object reference, within the compiler and across the | |
32 * compiler/runtime interface. | |
33 */ | |
34 public interface HotSpotObjectConstant extends JavaConstant, HotSpotConstant, VMConstant { | |
35 | |
36 JavaConstant compress(); | |
37 | |
38 JavaConstant uncompress(); | |
39 | |
40 /** | |
41 * Gets the resolved Java type of the object represented by this constant. | |
42 */ | |
43 HotSpotResolvedObjectType getType(); | |
44 | |
45 /** | |
46 * Gets the result of {@link Class#getClassLoader()} for the {@link Class} object represented by | |
47 * this constant. | |
48 * | |
49 * @return {@code null} if this constant does not represent a {@link Class} object | |
50 */ | |
51 JavaConstant getClassLoader(); | |
52 | |
53 /** | |
54 * Gets the {@linkplain System#identityHashCode(Object) identity} has code for the object | |
55 * represented by this constant. | |
56 */ | |
57 int getIdentityHashCode(); | |
58 | |
59 /** | |
60 * Gets the result of {@link Class#getComponentType()} for the {@link Class} object represented | |
61 * by this constant. | |
62 * | |
63 * @return {@code null} if this constant does not represent a {@link Class} object | |
64 */ | |
65 JavaConstant getComponentType(); | |
66 | |
67 /** | |
68 * Gets the result of {@link Class#getSuperclass()} for the {@link Class} object represented by | |
69 * this constant. | |
70 * | |
71 * @return {@code null} if this constant does not represent a {@link Class} object | |
72 */ | |
73 JavaConstant getSuperclass(); | |
74 | |
75 /** | |
76 * Gets the result of {@link CallSite#getTarget()} for the {@link CallSite} object represented | |
77 * by this constant. | |
78 * | |
79 * @param assumptions used to register an assumption that the {@link CallSite}'s target does not | |
80 * change | |
81 * @return {@code null} if this constant does not represent a {@link CallSite} object | |
82 */ | |
83 JavaConstant getCallSiteTarget(Assumptions assumptions); | |
84 | |
85 /** | |
86 * Determines if this constant represents an {@linkplain String#intern() interned} string. | |
87 */ | |
88 boolean isInternedString(); | |
89 | |
90 /** | |
91 * Gets the object represented by this constant represents if it is of a given type. | |
92 * | |
93 * @param type the expected type of the object represented by this constant. If the object is | |
94 * required to be of this type, then wrap the call to this method in | |
95 * {@link Objects#requireNonNull(Object)}. | |
96 * @return the object value represented by this constant if it is an | |
97 * {@link ResolvedJavaType#isInstance(JavaConstant) instance of} {@code type} otherwise | |
98 * {@code null} | |
99 */ | |
100 <T> T asObject(Class<T> type); | |
101 | |
102 /** | |
103 * Gets the object represented by this constant represents if it is of a given type. | |
104 * | |
105 * @param type the expected type of the object represented by this constant. If the object is | |
106 * required to be of this type, then wrap the call to this method in | |
107 * {@link Objects#requireNonNull(Object)}. | |
108 * @return the object value represented by this constant if it is an | |
109 * {@link ResolvedJavaType#isInstance(JavaConstant) instance of} {@code type} otherwise | |
110 * {@code null} | |
111 */ | |
112 Object asObject(ResolvedJavaType type); | |
113 } |