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13514
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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,
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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 WriteFloatInstanceVariableNode extends WriteSpecializedInstanceVariableNode {
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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 WriteFloatInstanceVariableNode(RubyContext context, SourceSection sourceSection, String name, RubyNode receiver, RubyNode rhs, ObjectLayout objectLayout,
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25 FloatStorageLocation storageLocation) {
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26 super(context, sourceSection, name, receiver, rhs, objectLayout);
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27 this.storageLocation = storageLocation;
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28 }
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29
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30 @Override
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31 public double executeFloat(VirtualFrame frame) throws UnexpectedResultException {
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32 final RubyBasicObject receiverObject = (RubyBasicObject) receiver.execute(frame);
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33
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34 double value;
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35
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36 try {
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37 value = rhs.executeFloat(frame);
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38 } catch (UnexpectedResultException e) {
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39 receiverObject.setInstanceVariable(name, e.getResult());
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40 replace(respecialize(receiverObject));
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41 throw e;
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42 }
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43
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44 final ObjectLayout receiverLayout = receiverObject.getObjectLayout();
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45
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46 if (receiverLayout != objectLayout) {
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47 CompilerDirectives.transferToInterpreter();
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48 receiverObject.setInstanceVariable(name, value);
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49 replace(respecialize(receiverObject));
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50 return value;
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51 }
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52
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53 assert receiverLayout != null;
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54
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55 storageLocation.writeFloat(receiverObject, value);
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56 return value;
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57 }
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58
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59 @Override
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60 public Object execute(VirtualFrame frame) {
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61 try {
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62 return executeFloat(frame);
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63 } catch (UnexpectedResultException e) {
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64 return e.getResult();
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65 }
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66 }
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67
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68 }
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