← Back to branch summary

~ubuntu-branches/ubuntu/trusty/monodevelop/trusty-proposed

« back to all changes in this revision

Viewing changes to external/nrefactory/ICSharpCode.NRefactory/Utils/ProjectedList.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
ImportĀ upstreamĀ versionĀ 4.0.5+dfsg

Show diffs side-by-side

added added

removed removed

Lines of Context:
external/nrefactory/ICSharpCode.NRefactory/Utils/ProjectedList.cs
 
1
ļ»æ// Copyright (c) 2010-2013 AlphaSierraPapa for the SharpDevelop Team
 
2
// 
 
3
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
 
4
// software and associated documentation files (the "Software"), to deal in the Software
 
5
// without restriction, including without limitation the rights to use, copy, modify, merge,
 
6
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
 
7
// to whom the Software is furnished to do so, subject to the following conditions:
 
8
// 
 
9
// The above copyright notice and this permission notice shall be included in all copies or
 
10
// substantial portions of the Software.
 
11
// 
 
12
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 
13
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 
14
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
 
15
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 
16
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 
17
// DEALINGS IN THE SOFTWARE.
 
18
 
 
19
using System;
 
20
using System.Collections.Generic;
 
21
 
 
22
namespace ICSharpCode.NRefactory.Utils
 
23
{
 
24
        public sealed class ProjectedList<TInput, TOutput> : IList<TOutput> where TOutput : class
 
25
        {
 
26
                readonly IList<TInput> input;
 
27
                readonly Func<TInput, TOutput> projection;
 
28
                readonly TOutput[] items;
 
29
                
 
30
                public ProjectedList(IList<TInput> input, Func<TInput, TOutput> projection)
 
31
                {
 
32
                        if (input == null)
 
33
                                throw new ArgumentNullException("input");
 
34
                        if (projection == null)
 
35
                                throw new ArgumentNullException("projection");
 
36
                        this.input = input;
 
37
                        this.projection = projection;
 
38
                        this.items = new TOutput[input.Count];
 
39
                }
 
40
                
 
41
                public TOutput this[int index] {
 
42
                        get {
 
43
                                TOutput output = LazyInit.VolatileRead(ref items[index]);
 
44
                                if (output != null) {
 
45
                                        return output;
 
46
                                }
 
47
                                return LazyInit.GetOrSet(ref items[index], projection(input[index]));
 
48
                        }
 
49
                }
 
50
                
 
51
                TOutput IList<TOutput>.this[int index] {
 
52
                        get { return this[index]; }
 
53
                        set {
 
54
                                throw new NotSupportedException();
 
55
                        }
 
56
                }
 
57
                
 
58
                public int Count {
 
59
                        get { return items.Length; }
 
60
                }
 
61
                
 
62
                bool ICollection<TOutput>.IsReadOnly {
 
63
                        get { return true; }
 
64
                }
 
65
                
 
66
                int IList<TOutput>.IndexOf(TOutput item)
 
67
                {
 
68
                        var comparer = EqualityComparer<TOutput>.Default;
 
69
                        for (int i = 0; i < this.Count; i++) {
 
70
                                if (comparer.Equals(this[i], item))
 
71
                                        return i;
 
72
                        }
 
73
                        return -1;
 
74
                }
 
75
                
 
76
                void IList<TOutput>.Insert(int index, TOutput item)
 
77
                {
 
78
                        throw new NotSupportedException();
 
79
                }
 
80
                
 
81
                void IList<TOutput>.RemoveAt(int index)
 
82
                {
 
83
                        throw new NotSupportedException();
 
84
                }
 
85
                
 
86
                void ICollection<TOutput>.Add(TOutput item)
 
87
                {
 
88
                        throw new NotSupportedException();
 
89
                }
 
90
                
 
91
                void ICollection<TOutput>.Clear()
 
92
                {
 
93
                        throw new NotSupportedException();
 
94
                }
 
95
                
 
96
                bool ICollection<TOutput>.Contains(TOutput item)
 
97
                {
 
98
                        var comparer = EqualityComparer<TOutput>.Default;
 
99
                        for (int i = 0; i < this.Count; i++) {
 
100
                                if (comparer.Equals(this[i], item))
 
101
                                        return true;
 
102
                        }
 
103
                        return false;
 
104
                }
 
105
                
 
106
                void ICollection<TOutput>.CopyTo(TOutput[] array, int arrayIndex)
 
107
                {
 
108
                        for (int i = 0; i < items.Length; i++) {
 
109
                                array[arrayIndex + i] = this[i];
 
110
                        }
 
111
                }
 
112
                
 
113
                bool ICollection<TOutput>.Remove(TOutput item)
 
114
                {
 
115
                        throw new NotSupportedException();
 
116
                }
 
117
                
 
118
                public IEnumerator<TOutput> GetEnumerator()
 
119
                {
 
120
                        for (int i = 0; i < this.Count; i++) {
 
121
                                yield return this[i];
 
122
                        }
 
123
                }
 
124
                
 
125
                System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
 
126
                {
 
127
                        return GetEnumerator();
 
128
                }
 
129
        }
 
130
        
 
131
        public sealed class ProjectedList<TContext, TInput, TOutput> : IList<TOutput> where TOutput : class
 
132
        {
 
133
                readonly IList<TInput> input;
 
134
                readonly TContext context;
 
135
                readonly Func<TContext, TInput, TOutput> projection;
 
136
                readonly TOutput[] items;
 
137
                
 
138
                public ProjectedList(TContext context, IList<TInput> input, Func<TContext, TInput, TOutput> projection)
 
139
                {
 
140
                        if (input == null)
 
141
                                throw new ArgumentNullException("input");
 
142
                        if (projection == null)
 
143
                                throw new ArgumentNullException("projection");
 
144
                        this.input = input;
 
145
                        this.context = context;
 
146
                        this.projection = projection;
 
147
                        this.items = new TOutput[input.Count];
 
148
                }
 
149
                
 
150
                public TOutput this[int index] {
 
151
                        get {
 
152
                                TOutput output = LazyInit.VolatileRead(ref items[index]);
 
153
                                if (output != null) {
 
154
                                        return output;
 
155
                                }
 
156
                                return LazyInit.GetOrSet(ref items[index], projection(context, input[index]));
 
157
                        }
 
158
                }
 
159
                
 
160
                TOutput IList<TOutput>.this[int index] {
 
161
                        get { return this[index]; }
 
162
                        set {
 
163
                                throw new NotSupportedException();
 
164
                        }
 
165
                }
 
166
                
 
167
                public int Count {
 
168
                        get { return items.Length; }
 
169
                }
 
170
                
 
171
                bool ICollection<TOutput>.IsReadOnly {
 
172
                        get { return true; }
 
173
                }
 
174
                
 
175
                int IList<TOutput>.IndexOf(TOutput item)
 
176
                {
 
177
                        var comparer = EqualityComparer<TOutput>.Default;
 
178
                        for (int i = 0; i < this.Count; i++) {
 
179
                                if (comparer.Equals(this[i], item))
 
180
                                        return i;
 
181
                        }
 
182
                        return -1;
 
183
                }
 
184
                
 
185
                void IList<TOutput>.Insert(int index, TOutput item)
 
186
                {
 
187
                        throw new NotSupportedException();
 
188
                }
 
189
                
 
190
                void IList<TOutput>.RemoveAt(int index)
 
191
                {
 
192
                        throw new NotSupportedException();
 
193
                }
 
194
                
 
195
                void ICollection<TOutput>.Add(TOutput item)
 
196
                {
 
197
                        throw new NotSupportedException();
 
198
                }
 
199
                
 
200
                void ICollection<TOutput>.Clear()
 
201
                {
 
202
                        throw new NotSupportedException();
 
203
                }
 
204
                
 
205
                bool ICollection<TOutput>.Contains(TOutput item)
 
206
                {
 
207
                        var comparer = EqualityComparer<TOutput>.Default;
 
208
                        for (int i = 0; i < this.Count; i++) {
 
209
                                if (comparer.Equals(this[i], item))
 
210
                                        return true;
 
211
                        }
 
212
                        return false;
 
213
                }
 
214
                
 
215
                void ICollection<TOutput>.CopyTo(TOutput[] array, int arrayIndex)
 
216
                {
 
217
                        for (int i = 0; i < items.Length; i++) {
 
218
                                array[arrayIndex + i] = this[i];
 
219
                        }
 
220
                }
 
221
                
 
222
                bool ICollection<TOutput>.Remove(TOutput item)
 
223
                {
 
224
                        throw new NotSupportedException();
 
225
                }
 
226
                
 
227
                public IEnumerator<TOutput> GetEnumerator()
 
228
                {
 
229
                        for (int i = 0; i < this.Count; i++) {
 
230
                                yield return this[i];
 
231
                        }
 
232
                }
 
233
                
 
234
                System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
 
235
                {
 
236
                        return GetEnumerator();
 
237
                }
 
238
        }
 
239
}