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comparison graal/com.oracle.truffle.ruby.runtime/src/com/oracle/truffle/ruby/runtime/objects/ObjectStorageLocation.java @ 13514:0fbee3eb71f0

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Ruby: import project.
author Chris Seaton <chris.seaton@oracle.com>
date Mon, 06 Jan 2014 17:12:09 +0000
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13513:64a23ce736a0 13514:0fbee3eb71f0
1 /*
2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
4 * redistribute it and/or modify it under the terms of the:
5 *
6 * Eclipse Public License version 1.0
7 * GNU General Public License version 2
8 * GNU Lesser General Public License version 2.1
9 */
10 package com.oracle.truffle.ruby.runtime.objects;
11
12 import com.oracle.truffle.ruby.runtime.*;
13
14 /**
15 * A storage location for any object.
16 */
17 public class ObjectStorageLocation extends StorageLocation {
18
19 private final int index;
20
21 public ObjectStorageLocation(ObjectLayout objectLayout, int index) {
22 super(objectLayout);
23 this.index = index;
24 }
25
26 @Override
27 public boolean isSet(RubyBasicObject object) {
28 return object.objectStorageLocations[index] != null;
29 }
30
31 @Override
32 public Object read(RubyBasicObject object, boolean condition) {
33 final Object result = object.objectStorageLocations[index];
34
35 if (result == null) {
36 return NilPlaceholder.INSTANCE;
37 } else {
38 return result;
39 }
40 }
41
42 @Override
43 public void write(RubyBasicObject object, Object value) {
44 object.objectStorageLocations[index] = value;
45 }
46
47 @Override
48 public Class getStoredClass() {
49 return Object.class;
50 }
51
52 }