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annotate Jint.Runtime/VM/Box.cs @ 5:cb13da6e3349

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simple loop test
author cin
date Mon, 28 Oct 2013 00:49:15 +0400
parents 1ae5b10f7a10
children a6329b092499
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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 using Jint.Runtime.VM.OpCodes;
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6 using System.ComponentModel;
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8 namespace Jint.Runtime.VM {
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9 class Box<T>: AbstractBox, IGettter<T>, ISetter<T> {
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11 public T holdingValue;
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12 object[] m_impl;
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13 RuntimeContext m_runtime;
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14 TypeConverter m_converter;
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16 public Box(T value, RuntimeContext runtime): base(typeof(T)) {
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17 if (runtime == null)
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18 throw new ArgumentNullException("runtime");
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20 holdingValue = value;
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21 m_runtime = runtime;
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22 }
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23
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24 object[] Impl {
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25 get {
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26 if (m_impl == null)
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27 m_impl = m_runtime.GetImpl(typeof(T));
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28 return m_impl;
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29 }
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30 }
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32 TypeConverter TypeConverter {
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33 get {
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34 if (m_converter == null)
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35 m_converter = TypeDescriptor.GetConverter(typeof(T));
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36 return m_converter;
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37 }
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38 }
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39
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40 public T Get() {
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41 return holdingValue;
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42 }
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44 public void Set(T value) {
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45 holdingValue = value;
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46 }
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47
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48 public override void InvokeBinaryOperation(Codes code, int arg2, int dest, Frame frame) {
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49 var op = (BinaryOperation<T>)Impl[(int)code];
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50 frame.SetValue(dest, op(holdingValue, frame.GetValue<T>(arg2)));
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51 }
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52
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53 public override void InvokeUnaryOperation(Codes code, int dest, Frame frame) {
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54 var op = (UnaryOperation<T>)Impl[(int)code];
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55 frame.SetValue(dest, op(holdingValue));
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56 }
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57
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58 public override int InvokeCompareOperation(int arg2, Frame frame) {
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59 var op = (CompareOperation<T>)Impl[(int)Codes.Cmp];
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60 return op(holdingValue, frame.GetValue<T>(arg2));
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61 }
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62
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63 public override bool InvokeEqualityOperation(int arg2, Frame frame) {
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64 var op = (EqualityOperation<T>)Impl[(int)Codes.Cmp];
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65 return op(holdingValue, frame.GetValue<T>(arg2));
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66 }
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67
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68 public override T2 Convert<T2>() {
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69 return (T2)TypeConverter.ConvertTo(holdingValue, typeof(T2));
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70 }
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71 }
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72 }