Mercurial > hg > graal-jvmci-8
comparison graal/com.oracle.truffle.object/src/com/oracle/truffle/object/Transition.java @ 18408:2c3666f44855
Truffle: initial commit of object API implementation
author | Andreas Woess <andreas.woess@jku.at> |
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date | Tue, 18 Nov 2014 23:19:43 +0100 |
parents | |
children | b3b241bbbbdb |
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18407:f439fdb137a3 | 18408:2c3666f44855 |
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1 /* | |
2 * Copyright (c) 2013, 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.truffle.object; | |
24 | |
25 import java.util.*; | |
26 | |
27 import com.oracle.truffle.api.object.*; | |
28 | |
29 public abstract class Transition { | |
30 @Override | |
31 public int hashCode() { | |
32 int result = 1; | |
33 return result; | |
34 } | |
35 | |
36 @Override | |
37 public boolean equals(Object obj) { | |
38 if (this == obj) { | |
39 return true; | |
40 } | |
41 if (obj == null) { | |
42 return false; | |
43 } | |
44 if (getClass() != obj.getClass()) { | |
45 return false; | |
46 } | |
47 return true; | |
48 } | |
49 | |
50 public abstract static class PropertyTransition extends Transition { | |
51 private final Property property; | |
52 | |
53 public PropertyTransition(Property property) { | |
54 this.property = property; | |
55 } | |
56 | |
57 @Override | |
58 public int hashCode() { | |
59 final int prime = 31; | |
60 int result = super.hashCode(); | |
61 result = prime * result + ((property == null) ? 0 : property.hashCode()); | |
62 return result; | |
63 } | |
64 | |
65 @Override | |
66 public boolean equals(Object obj) { | |
67 if (!super.equals(obj)) { | |
68 return false; | |
69 } | |
70 PropertyTransition other = (PropertyTransition) obj; | |
71 if (!Objects.equals(property, other.property)) { | |
72 return false; | |
73 } | |
74 return true; | |
75 } | |
76 | |
77 public Property getProperty() { | |
78 return property; | |
79 } | |
80 } | |
81 | |
82 public static final class AddTransition extends PropertyTransition { | |
83 public AddTransition(Property property) { | |
84 super(property); | |
85 } | |
86 } | |
87 | |
88 public static final class RemoveTransition extends PropertyTransition { | |
89 public RemoveTransition(Property property) { | |
90 super(property); | |
91 } | |
92 } | |
93 | |
94 public static final class OperationsTransition extends Transition { | |
95 private final ObjectType operations; | |
96 | |
97 public OperationsTransition(ObjectType operations) { | |
98 this.operations = operations; | |
99 } | |
100 | |
101 public ObjectType getOperations() { | |
102 return operations; | |
103 } | |
104 | |
105 @Override | |
106 public boolean equals(Object other) { | |
107 return super.equals(other) && Objects.equals(operations, ((OperationsTransition) other).operations); | |
108 } | |
109 | |
110 @Override | |
111 public int hashCode() { | |
112 final int prime = 31; | |
113 int result = super.hashCode(); | |
114 result = prime * result + ((operations == null) ? 0 : operations.hashCode()); | |
115 return result; | |
116 } | |
117 } | |
118 | |
119 public static final class TypeTransition extends PropertyTransition { | |
120 private final Property after; | |
121 | |
122 public TypeTransition(Property before, Property after) { | |
123 super(before); | |
124 this.after = after; | |
125 } | |
126 | |
127 public Property getPropertyBefore() { | |
128 return this.getProperty(); | |
129 } | |
130 | |
131 public Property getPropertyAfter() { | |
132 return after; | |
133 } | |
134 } | |
135 | |
136 public static final class ReservePrimitiveArrayTransition extends Transition { | |
137 public ReservePrimitiveArrayTransition() { | |
138 } | |
139 } | |
140 | |
141 public String getShortName() { | |
142 return this.getClass().getSimpleName().replaceFirst("Transition$", "").toLowerCase(); | |
143 } | |
144 } |