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1 | /** |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, | |
13 | * software distributed under the License is distributed on an | |
14 | * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | |
15 | * KIND, either express or implied. See the License for the | |
16 | * specific language governing permissions and limitations | |
17 | * under the License. | |
18 | */ | |
19 | ||
20 | using System; | |
21 | using System.Collections; | |
22 | using System.Collections.Generic; | |
23 | ||
24 | #if SILVERLIGHT | |
25 | using System.Runtime.Serialization; | |
26 | #endif | |
27 | ||
28 | namespace Thrift.Collections | |
29 | { | |
30 | #if SILVERLIGHT | |
31 | [DataContract] | |
32 | #else | |
33 | [Serializable] | |
34 | #endif | |
35 | public class THashSet<T> : ICollection<T> | |
36 | { | |
37 | #if NET_2_0 || SILVERLIGHT | |
38 | #if SILVERLIGHT | |
39 | [DataMember] | |
40 | #endif | |
41 | TDictSet<T> set = new TDictSet<T>(); | |
42 | #else | |
43 | HashSet<T> set = new HashSet<T>(); | |
44 | #endif | |
45 | public int Count | |
46 | { | |
47 | get { return set.Count; } | |
48 | } | |
49 | ||
50 | public bool IsReadOnly | |
51 | { | |
52 | get { return false; } | |
53 | } | |
54 | ||
55 | public void Add(T item) | |
56 | { | |
57 | set.Add(item); | |
58 | } | |
59 | ||
60 | public void Clear() | |
61 | { | |
62 | set.Clear(); | |
63 | } | |
64 | ||
65 | public bool Contains(T item) | |
66 | { | |
67 | return set.Contains(item); | |
68 | } | |
69 | ||
70 | public void CopyTo(T[] array, int arrayIndex) | |
71 | { | |
72 | set.CopyTo(array, arrayIndex); | |
73 | } | |
74 | ||
75 | public IEnumerator GetEnumerator() | |
76 | { | |
77 | return set.GetEnumerator(); | |
78 | } | |
79 | ||
80 | IEnumerator<T> IEnumerable<T>.GetEnumerator() | |
81 | { | |
82 | return ((IEnumerable<T>)set).GetEnumerator(); | |
83 | } | |
84 | ||
85 | public bool Remove(T item) | |
86 | { | |
87 | return set.Remove(item); | |
88 | } | |
89 | ||
90 | #if NET_2_0 || SILVERLIGHT | |
91 | #if SILVERLIGHT | |
92 | [DataContract] | |
93 | #endif | |
94 | private class TDictSet<V> : ICollection<V> | |
95 | { | |
96 | #if SILVERLIGHT | |
97 | [DataMember] | |
98 | #endif | |
99 | Dictionary<V, TDictSet<V>> dict = new Dictionary<V, TDictSet<V>>(); | |
100 | ||
101 | public int Count | |
102 | { | |
103 | get { return dict.Count; } | |
104 | } | |
105 | ||
106 | public bool IsReadOnly | |
107 | { | |
108 | get { return false; } | |
109 | } | |
110 | ||
111 | public IEnumerator GetEnumerator() | |
112 | { | |
113 | return ((IEnumerable)dict.Keys).GetEnumerator(); | |
114 | } | |
115 | ||
116 | IEnumerator<V> IEnumerable<V>.GetEnumerator() | |
117 | { | |
118 | return dict.Keys.GetEnumerator(); | |
119 | } | |
120 | ||
121 | public bool Add(V item) | |
122 | { | |
123 | if (!dict.ContainsKey(item)) | |
124 | { | |
125 | dict[item] = this; | |
126 | return true; | |
127 | } | |
128 | ||
129 | return false; | |
130 | } | |
131 | ||
132 | void ICollection<V>.Add(V item) | |
133 | { | |
134 | Add(item); | |
135 | } | |
136 | ||
137 | public void Clear() | |
138 | { | |
139 | dict.Clear(); | |
140 | } | |
141 | ||
142 | public bool Contains(V item) | |
143 | { | |
144 | return dict.ContainsKey(item); | |
145 | } | |
146 | ||
147 | public void CopyTo(V[] array, int arrayIndex) | |
148 | { | |
149 | dict.Keys.CopyTo(array, arrayIndex); | |
150 | } | |
151 | ||
152 | public bool Remove(V item) | |
153 | { | |
154 | return dict.Remove(item); | |
155 | } | |
156 | } | |
157 | #endif | |
158 | } | |
159 | ||
160 | } |