[310] | 1 | 'Classes/System/Collections/Generic/Dictionary.ab
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| 2 |
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| 3 | '#require <Classes/System/Collections/Generic/EqualityComparer.ab>
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| 4 |
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| 5 | Namespace System
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| 6 | Namespace Collections
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| 7 | Namespace Generic
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| 8 |
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| 9 | Namespace Detail
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[313] | 10 | Class Pair
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[310] | 11 | Public
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[313] | 12 | Sub Pair(key As Object, value As Object)
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[310] | 13 | Key = key
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| 14 | Value = value
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| 15 | End Sub
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| 16 |
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[313] | 17 | Key As Object
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| 18 | Value As Object
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[310] | 19 | End Class
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| 20 | End Namespace 'Detail
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| 21 |
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| 22 | Class Dictionary<Key, T>
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| 23 | Public
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| 24 | 'Constructor
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| 25 | Sub Dictionary()
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| 26 | initialize(23)
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| 27 | End Sub
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| 28 | ' Sub Dictionary(d As IDictionary<Key, T>)
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| 29 | ' Sub Dictionary(comparer As IEqualityComparer<Key>)
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| 30 | Sub Dictionary(capacity As Long)
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| 31 | initialize(capacity)
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| 32 | End Sub
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| 33 | ' Sub Dictionary(d As IDictionary<Key, T>, comparer As IEqualityComparer<Key>)
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| 34 | ' Sub Dictionary(capacity As Long, comparer As IEqualityComparer<Key>)
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| 35 |
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| 36 | 'Properties
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| 37 | ' Function Comparer() As IEqualityComparer<Key>
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| 38 | ' Virtual Function Count() As Long
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| 39 | ' End Function
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| 40 |
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[312] | 41 | Virtual Function Item(key As Key) As T
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[537] | 42 | If ActiveBasic.IsNothing(key) Then
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[410] | 43 | Throw New ArgumentNullException("key")
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[310] | 44 | End If
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| 45 |
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[393] | 46 | Dim hash = getHash(key)
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[310] | 47 | Dim a = al[hash] As ArrayList
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| 48 |
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[542] | 49 | If Not ActiveBasic.IsNothing(a) Then
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[310] | 50 | Dim i As Long
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| 51 | For i = 0 To ELM(a.Count)
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[393] | 52 | Dim pair = a[i] As Detail.Pair
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[310] | 53 | If pair.Key.Equals(key) Then
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| 54 | Return pair.Value
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| 55 | End If
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| 56 | Next
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| 57 | End If
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[403] | 58 |
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| 59 | Throw New KeyNotFoundException
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[310] | 60 | End Function
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| 61 |
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| 62 | Virtual Sub Item(key As Key, value As T)
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[537] | 63 | If ActiveBasic.IsNothing(key) Then
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| 64 | Throw New ArgumentNullException("key")
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[310] | 65 | End If
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| 66 |
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[393] | 67 | Dim hash = getHash(key)
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[310] | 68 | Dim a = al[hash] As ArrayList
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| 69 |
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| 70 | If Object.ReferenceEquals(a, Nothing) Then
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| 71 | a = New ArrayList
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| 72 | al[hash] = a
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| 73 | Else
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| 74 | Dim i As Long
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| 75 | For i = 0 To ELM(a.Count)
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[393] | 76 | Dim pair = a[i] As Detail.Pair
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[310] | 77 | If pair.Key.Equals(key) Then
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| 78 | pair.Value = value
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[542] | 79 | Exit Sub
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[310] | 80 | End If
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| 81 | Next
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| 82 | End If
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| 83 |
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[393] | 84 | a.Add(New Detail.Pair(key, value))
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[310] | 85 | End Sub
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| 86 |
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| 87 | ' Function Keys() As KeyCollection
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| 88 | ' Function Values() As ValuesCollection
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| 89 | /*
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| 90 | 'Operators
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[313] | 91 | ' Function Operator [](key As Key) As T
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| 92 | Function Operator [](key As Key) As Object
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[310] | 93 | Return Item[key]
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| 94 | End Function
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| 95 |
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| 96 | Sub Operator []=(key As Key, value As T)
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| 97 | ' Item[key] = vaule
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| 98 | End Sub
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| 99 | */
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| 100 | 'Methods
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| 101 | Sub Add(key As Key, value As T)
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[537] | 102 | If ActiveBasic.IsNothing(key) Then
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| 103 | Throw New ArgumentNullException("key")
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[310] | 104 | End If
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| 105 |
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[393] | 106 | Dim hash = getHash(key)
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[310] | 107 | Dim a = al[hash] As ArrayList
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| 108 |
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[537] | 109 | If ActiveBasic.IsNothing(a) Then
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[310] | 110 | a = New ArrayList
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| 111 | al[hash] = a
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| 112 | Else
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| 113 | Dim i As Long
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| 114 | For i = 0 To ELM(a.Count)
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[393] | 115 | Dim pair = a[i] As Detail.Pair
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[310] | 116 | If pair.Key.Equals(key) Then
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| 117 | 'Throw ArgumentError
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| 118 | End If
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| 119 | Next
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| 120 | End If
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| 121 |
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[393] | 122 | a.Add(New Detail.Pair(key, value))
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[366] | 123 |
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[393] | 124 | count++
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[310] | 125 | End Sub
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| 126 |
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| 127 | Sub Clear()
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| 128 | Dim i As Long
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| 129 | For i = 0 To ELM(al.Count)
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| 130 | al[i] = Nothing
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| 131 | Next
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| 132 | End Sub
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| 133 |
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[366] | 134 | Function Count() As Long
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| 135 | Return count
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| 136 | End Function
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| 137 |
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[542] | 138 | /*!
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| 139 | @biref 指定されたキーが格納されているか調べる。
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| 140 | @date 2008/07/11
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| 141 | @param[in] key 検索対象のキー
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| 142 | @retval True 格納されていたとき
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| 143 | @retval False 格納されていなかったとき
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| 144 | @throw ArgumentNullException keyがNothingだったとき
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| 145 | @author Egtra
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| 146 | */
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| 147 | Function ContainsKey(key As Key) As Boolean
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| 148 | If ActiveBasic.IsNothing(key) Then
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| 149 | Throw New ArgumentNullException("key")
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| 150 | End If
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| 151 | ContainsKey = False
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| 152 |
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| 153 | Dim hash = getHash(key)
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| 154 | Dim a = al[hash] As ArrayList
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| 155 |
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| 156 | If Not ActiveBasic.IsNothing(a) Then
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| 157 | Dim i As Long
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| 158 | For i = 0 To ELM(a.Count)
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| 159 | Dim pair = a[i] As Detail.Pair
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| 160 | If pair.Key.Equals(key) Then
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| 161 | ContainsKey = True
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| 162 | Exit Function
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| 163 | End If
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| 164 | Next
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| 165 | End If
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| 166 | End Function
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| 167 |
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[310] | 168 | ' Function ContainsValue(value As T) As Boolean
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| 169 | ' End Function
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| 170 | ' Function GetEnumerator() As Enumerator
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[537] | 171 |
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| 172 | /*!
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| 173 | @biref 指定されたキーの要素を削除する。
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| 174 | @date 2008/07/11
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| 175 | @param[in] key 削除対象のキー
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| 176 | @retval True 対象要素が見つかって削除されたとき
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| 177 | @retval False 見つからず削除されなかったとき
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| 178 | @author Egtra
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| 179 | */
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| 180 | Function Remove(key As Key) As Boolean
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| 181 | Remove = False
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| 182 | If Not ActiveBasic.IsNothing(key) Then
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| 183 | Dim hash = getHash(key)
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| 184 | Dim a = al[hash] As ArrayList
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| 185 | If Not ActiveBasic.IsNothing(a) Then
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| 186 | Dim i As Long
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| 187 | For i = 0 To ELM(a.Count)
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| 188 | Dim pair = a[i] As Detail.Pair
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| 189 | If pair.Key.Equals(key) Then
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| 190 | a.RemoveAt(i)
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| 191 | Remove = True
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| 192 | count--
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| 193 | Exit Function
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| 194 | End If
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| 195 | Next
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| 196 | End If
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| 197 | End If
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| 198 | End Function
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| 199 |
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[542] | 200 | Function TryGetValue(key As Key, ByRef value As T) As Boolean
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| 201 | If ActiveBasic.IsNothing(key) Then
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| 202 | Throw New ArgumentNullException("key")
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| 203 | End If
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| 204 | TryGetValue = False
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| 205 | value = Nothing
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[310] | 206 |
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[542] | 207 | Dim hash = getHash(key)
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| 208 | Dim a = al[hash] As ArrayList
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| 209 |
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| 210 | If Not ActiveBasic.IsNothing(a) Then
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| 211 | Dim i As Long
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| 212 | For i = 0 To ELM(a.Count)
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| 213 | Dim pair = a[i] As Detail.Pair
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| 214 | If pair.Key.Equals(key) Then
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| 215 | TryGetValue = True
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| 216 | value = pair.Value
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| 217 | Exit Function
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| 218 | End If
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| 219 | Next
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| 220 | End If
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| 221 | End Function
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| 222 |
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[310] | 223 | 'Classses
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| 224 | ' Class KeyCollection
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| 225 | ' Class ValuesCollection
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| 226 | ' Class Enumerator
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| 227 |
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| 228 | Private
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| 229 |
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| 230 | ' comp As System.Collections.Generic.Detail.DefaultEqualityComparer<Key> 'IEqualityComparer<Key>
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| 231 |
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| 232 | Sub initialize(c As Long)
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| 233 | al = ArrayList.Repeat(Nothing, c)
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[366] | 234 | count = 0
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[310] | 235 | End Sub
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| 236 |
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[393] | 237 | Function getHash(key As Object) As Long
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| 238 | Return (key.GetHashCode As DWord) Mod al.Count
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| 239 | End Function
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| 240 |
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[310] | 241 | al As ArrayList
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[366] | 242 | count As Long
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[310] | 243 |
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| 244 | End Class
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| 245 |
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| 246 | End Namespace 'Generic
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| 247 | End Namespace 'Collections
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| 248 | End Namespace 'System
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