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annotate Jint.Runtime/VM/OpCodes/BinaryOperation.cs @ 0:e113095f1de0

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initial commit, proof of concept
author cin
date Wed, 23 Oct 2013 13:24:57 +0400
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1 using System;
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2
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3 namespace Jint.Runtime.VM
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4 {
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5 public abstract class BinaryOperation: IBinaryOperation
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6 {
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7 protected int m_arg1;
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8 protected int m_arg2;
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9 protected int m_res;
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10
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11 protected BinaryOperation(int arg1, int arg2, int res) {
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12 m_arg1 = arg1;
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13 m_arg2 = arg2;
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14 m_res = res;
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15 }
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16
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17 public virtual void Fallback(BoxBase arg1, BoxBase arg2, Frame frame) {
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18 throw new InvalidOperationException ("Unable to perform a binary operation on the specified arguments");
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19 }
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20
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21 #region IBinaryOperation implementation
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22
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23 public abstract void Invoke<T> (T arg1, T arg2, IBinder<T> binder, Frame frame);
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24
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25 #endregion
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26
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27 #region IOperation implementation
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28
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29 public void Invoke (Frame frame)
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30 {
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31 var box1 = frame.GetBox (m_arg1);
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32 var box2 = frame.GetBox (m_arg2);
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33
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34 if (box1 != null && box2 != null && box1.HoldingType == box2.HoldingType) {
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35 box1.Invoke (this, box2, frame);
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36 } else {
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37 Fallback (box1, box2, frame);
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38 }
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39 }
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40
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41 #endregion
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42 }
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43 }
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