opensim – Blame information for rev 1
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1 | eva | 1 | /* |
2 | * Copyright (C) 2007-2008, Jeff Thompson |
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3 | * |
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4 | * All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * * Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * * Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * * Neither the name of the copyright holder nor the names of its contributors |
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15 | * may be used to endorse or promote products derived from this software |
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16 | * without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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22 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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23 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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24 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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25 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
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26 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
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27 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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28 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 | */ |
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30 | |||
31 | using System; |
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32 | using System.Collections; |
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33 | using System.Collections.Generic; |
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34 | |||
35 | namespace OpenSim.Region.ScriptEngine.Shared.YieldProlog |
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36 | { |
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37 | /// <summary> |
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38 | /// A FindallAnswers holds answers for findall. |
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39 | /// </summary> |
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40 | public class FindallAnswers |
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41 | { |
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42 | private object _template; |
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43 | private List<object> _bagArray; |
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44 | |||
45 | public FindallAnswers(object Template) |
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46 | { |
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47 | _template = Template; |
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48 | _bagArray = new List<object>(); |
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49 | } |
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50 | |||
51 | public void add() |
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52 | { |
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53 | _bagArray.Add(YP.makeCopy(_template, new Variable.CopyStore())); |
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54 | } |
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55 | |||
56 | public List<object> resultArray() |
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57 | { |
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58 | return _bagArray; |
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59 | } |
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60 | |||
61 | /// <summary> |
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62 | /// Unify Bag with the result. This frees the internal answers, so you can only call this once. |
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63 | /// </summary> |
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64 | /// <param name="Bag"></param> |
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65 | /// <returns></returns> |
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66 | public IEnumerable<bool> result(object Bag) |
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67 | { |
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68 | object result = ListPair.make(_bagArray); |
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69 | // Try to free the memory. |
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70 | _bagArray = null; |
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71 | return YP.unify(Bag, result); |
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72 | } |
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73 | |||
74 | // disable warning on l1, don't see how we can |
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75 | // code this differently |
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76 | #pragma warning disable 0168, 0219 |
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77 | |||
78 | /// <summary> |
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79 | /// This is a simplified findall when the goal is a single call. |
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80 | /// </summary> |
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81 | /// <param name="Template"></param> |
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82 | /// <param name="goal"></param> |
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83 | /// <param name="Bag"></param> |
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84 | /// <returns></returns> |
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85 | public static IEnumerable<bool> findall(object Template, IEnumerable<bool> goal, object Bag) |
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86 | { |
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87 | FindallAnswers findallAnswers = new FindallAnswers(Template); |
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88 | foreach (bool l1 in goal) |
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89 | findallAnswers.add(); |
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90 | return findallAnswers.result(Bag); |
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91 | } |
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92 | |||
93 | /// <summary> |
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94 | /// Like findall, except return an array of the results. |
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95 | /// </summary> |
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96 | /// <param name="template"></param> |
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97 | /// <param name="goal"></param> |
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98 | /// <returns></returns> |
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99 | public static List<object> findallArray(object Template, IEnumerable<bool> goal) |
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100 | { |
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101 | FindallAnswers findallAnswers = new FindallAnswers(Template); |
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102 | foreach (bool l1 in goal) |
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103 | findallAnswers.add(); |
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104 | return findallAnswers.resultArray(); |
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105 | } |
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106 | #pragma warning restore 0168, 0219 |
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107 | } |
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108 | } |