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annotate graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/objects/instancevariables/ReadMissingInstanceVariableNode.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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13514
0fbee3eb71f0 Ruby: import project.
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1 /*
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2 * Copyright (c) 2013 Oracle and/or its affiliates. All rights reserved. This
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3 * code is released under a tri EPL/GPL/LGPL license. You can use it,
0fbee3eb71f0 Ruby: import project.
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4 * redistribute it and/or modify it under the terms of the:
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5 *
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6 * Eclipse Public License version 1.0
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7 * GNU General Public License version 2
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8 * GNU Lesser General Public License version 2.1
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9 */
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10 package com.oracle.truffle.ruby.nodes.objects.instancevariables;
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11
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12 import com.oracle.truffle.api.*;
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13 import com.oracle.truffle.api.frame.*;
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14 import com.oracle.truffle.api.nodes.*;
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15 import com.oracle.truffle.ruby.nodes.*;
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16 import com.oracle.truffle.ruby.runtime.*;
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17 import com.oracle.truffle.ruby.runtime.objects.*;
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18
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19 @NodeInfo(shortName = "@missing")
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20 public class ReadMissingInstanceVariableNode extends ReadSpecializedInstanceVariableNode {
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21
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22 public ReadMissingInstanceVariableNode(SourceSection sourceSection, String name, RubyNode receiver, ObjectLayout objectLayout, RubyContext context) {
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23 super(context, sourceSection, name, receiver, objectLayout);
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24 }
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25
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26 @Override
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27 public Object execute(VirtualFrame frame) {
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28 final RubyBasicObject receiverObject = (RubyBasicObject) receiver.execute(frame);
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29
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30 if (!receiverObject.getObjectLayout().contains(objectLayout)) {
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31 CompilerDirectives.transferToInterpreter();
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32 replace(respecialize(receiverObject));
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33 return receiverObject.getInstanceVariable(name);
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34 }
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35
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36 return NilPlaceholder.INSTANCE;
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37 }
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38 }