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annotate graal/com.oracle.truffle.ruby.nodes/src/com/oracle/truffle/ruby/nodes/objects/instancevariables/ReadFloatInstanceVariableNode.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 = "@Float")
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20 public class ReadFloatInstanceVariableNode extends ReadSpecializedInstanceVariableNode {
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21
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22 private final FloatStorageLocation storageLocation;
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23
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24 public ReadFloatInstanceVariableNode(RubyContext context, SourceSection sourceSection, String name, RubyNode receiver, ObjectLayout objectLayout, FloatStorageLocation storageLocation) {
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25 super(context, sourceSection, name, receiver, objectLayout);
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26 this.storageLocation = storageLocation;
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27 }
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28
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29 @Override
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30 public double executeFloat(VirtualFrame frame) throws UnexpectedResultException {
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31 final RubyBasicObject receiverObject = (RubyBasicObject) receiver.execute(frame);
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32
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33 final ObjectLayout receiverLayout = receiverObject.getObjectLayout();
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34
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35 final boolean condition = receiverLayout == objectLayout;
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36
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37 if (condition) {
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38 assert receiverLayout != null;
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39 return storageLocation.readFloat(receiverObject, condition);
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40 } else {
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41 CompilerDirectives.transferToInterpreter();
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42 replace(respecialize(receiverObject));
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43 throw new UnexpectedResultException(receiverObject.getInstanceVariable(name));
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44 }
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45 }
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46
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47 @Override
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48 public Object execute(VirtualFrame frame) {
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49 try {
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50 return executeFloat(frame);
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51 } catch (UnexpectedResultException e) {
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52 return e.getResult();
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53 }
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54 }
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55
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56 }