1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace System.Reactive
{
class ImmutableList<T>
{
T[] data;
public ImmutableList()
{
data = new T[0];
}
public ImmutableList(T[] data)
{
this.data = data;
}
public ImmutableList<T> Add(T value)
{
var newData = new T[data.Length + 1];
Array.Copy(data, newData, data.Length);
newData[data.Length] = value;
return new ImmutableList<T>(newData);
}
public ImmutableList<T> Remove(T value)
{
var i = IndexOf(value);
if (i < 0)
return this;
var newData = new T[data.Length - 1];
Array.Copy(data, 0, newData, 0, i);
Array.Copy(data, i + 1, newData, i, data.Length - i - 1);
return new ImmutableList<T>(newData);
}
public int IndexOf(T value)
{
for (var i = 0; i < data.Length; ++i)
if (data[i].Equals(value))
return i;
return -1;
}
public T[] Data
{
get { return data; }
}
}
}
|
