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1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
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2 /* vim: set ts=2 et sw=2 tw=80: */ |
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3 /* This Source Code Form is subject to the terms of the Mozilla Public |
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4 * License, v. 2.0. If a copy of the MPL was not distributed with this file, |
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5 * You can obtain one at http://mozilla.org/MPL/2.0/. */ |
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6 |
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7 #ifndef mozilla_dom_quota_arraycluster_h__ |
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8 #define mozilla_dom_quota_arraycluster_h__ |
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9 |
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10 #include "mozilla/dom/quota/QuotaCommon.h" |
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11 |
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12 #include "Client.h" |
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13 |
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14 BEGIN_QUOTA_NAMESPACE |
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15 |
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16 template <class ValueType, uint32_t Length = Client::TYPE_MAX> |
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17 class ArrayCluster |
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18 { |
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19 public: |
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20 ArrayCluster() |
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21 { |
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22 mArrays.AppendElements(Length); |
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23 } |
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24 |
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25 nsTArray<ValueType>& |
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26 ArrayAt(uint32_t aIndex) |
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27 { |
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28 MOZ_ASSERT(aIndex < Length, "Bad index!"); |
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29 return mArrays[aIndex]; |
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30 } |
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31 |
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32 nsTArray<ValueType>& |
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33 operator[](uint32_t aIndex) |
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34 { |
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35 return ArrayAt(aIndex); |
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36 } |
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37 |
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38 bool |
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39 IsEmpty() |
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40 { |
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41 for (uint32_t index = 0; index < Length; index++) { |
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42 if (!mArrays[index].IsEmpty()) { |
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43 return false; |
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44 } |
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45 } |
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46 return true; |
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47 } |
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48 |
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49 template <class T> |
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50 void |
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51 AppendElementsTo(uint32_t aIndex, nsTArray<T>& aArray) |
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52 { |
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53 NS_ASSERTION(aIndex < Length, "Bad index!"); |
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54 aArray.AppendElements(mArrays[aIndex]); |
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55 } |
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56 |
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57 template <class T> |
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58 void |
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59 AppendElementsTo(uint32_t aIndex, ArrayCluster<T, Length>& aArrayCluster) |
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60 { |
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61 NS_ASSERTION(aIndex < Length, "Bad index!"); |
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62 aArrayCluster[aIndex].AppendElements(mArrays[aIndex]); |
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63 } |
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64 |
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65 template <class T> |
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66 void |
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67 AppendElementsTo(nsTArray<T>& aArray) |
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68 { |
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69 for (uint32_t index = 0; index < Length; index++) { |
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70 aArray.AppendElements(mArrays[index]); |
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71 } |
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72 } |
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73 |
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74 template<class T> |
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75 void |
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76 AppendElementsTo(ArrayCluster<T, Length>& aArrayCluster) |
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77 { |
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78 for (uint32_t index = 0; index < Length; index++) { |
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79 aArrayCluster[index].AppendElements(mArrays[index]); |
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80 } |
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81 } |
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82 |
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83 template<class T> |
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84 void |
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85 SwapElements(ArrayCluster<T, Length>& aArrayCluster) |
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86 { |
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87 for (uint32_t index = 0; index < Length; index++) { |
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88 mArrays[index].SwapElements(aArrayCluster.mArrays[index]); |
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89 } |
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90 } |
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91 |
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92 void |
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93 Clear() |
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94 { |
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95 for (uint32_t index = 0; index < Length; index++) { |
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96 mArrays[index].Clear(); |
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97 } |
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98 } |
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99 |
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100 private: |
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101 nsAutoTArray<nsTArray<ValueType>, Length> mArrays; |
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102 }; |
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103 |
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104 END_QUOTA_NAMESPACE |
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105 |
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106 #endif // mozilla_dom_quota_arraycluster_h__ |