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annotate Jint.Runtime/VM/Frame.cs @ 3:aced2ae9957f

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temp commit, new virtual machine concept (strongly typed version of VM2).
author cin
date Sun, 27 Oct 2013 17:23:25 +0400
parents e113095f1de0
children 1ae5b10f7a10
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3
aced2ae9957f temp commit, new virtual machine concept (strongly typed version of VM2).
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1 using System;
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2 using System.Collections.Generic;
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3 using System.Linq;
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4 using System.Text;
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5
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6 namespace Jint.Runtime.VM {
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7 class Frame {
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8 IBox[] m_registers;
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9 RuntimeContext m_runtime;
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10
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11 public Frame(int size, RuntimeContext runtime) {
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12 if (runtime == null)
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13 throw new ArgumentNullException("runtime");
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14 if (size < 0)
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15 throw new ArgumentOutOfRangeException("size");
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16 m_runtime = runtime;
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17 m_registers = new IBox[size];
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18 }
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19
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20 public IBox this[int index] {
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21 get {
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22 return m_registers[index];
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23 }
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24 set {
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25 m_registers[index] = value;
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26 }
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27 }
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28
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29 public T GetValue<T>(int index) {
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30 // TODO handle conversion errors
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31 return ((Box<T>)m_registers[index]).holdingValue;
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32 }
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33
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34 public void SetValue<T>(int index, T value) {
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35 var reg = m_registers[index] as Box<T>;
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36 if (reg == null)
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37 m_registers[index] = m_runtime.BoxValue(value);
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38 else
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39 reg.holdingValue = value;
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40 }
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41 }
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42 }