mcs/class/System.Core/System.Linq.Parallel/RangeList.cs

   1 //
   2 // RangeList.cs
   3 //
   4 // Author:
   5 //       Jérémie "Garuma" Laval <jeremie.laval@gmail.com>
   6 //
   7 // Copyright (c) 2010 Jérémie "Garuma" Laval
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining a copy
  10 // of this software and associated documentation files (the "Software"), to deal
  11 // in the Software without restriction, including without limitation the rights
  12 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  13 // copies of the Software, and to permit persons to whom the Software is
  14 // furnished to do so, subject to the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be included in
  17 // all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  20 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  22 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  23 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  24 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  25 // THE SOFTWARE.
  26
  27 #if NET_4_0
  28 using System;
  29 using System.Collections;
  30 using System.Collections.Generic;
  31
  32 namespace System.Linq.Parallel
  33 {
  34         internal class RangeList : IList<int>
  35         {
  36                 readonly int start;
  37                 readonly int count;
  38
  39                 public RangeList (int start, int count)
  40                 {
  41                         this.start = start;
  42                         this.count = count;
  43                 }
  44
  45                 public int IndexOf (int item)
  46                 {
  47                         if (!Contains(item))
  48                                 return -1;
  49
  50                         return item - start;
  51                 }
  52
  53                 public void Insert (int index, int item)
  54                 {
  55                         throw new NotImplementedException();
  56                 }
  57
  58                 public void RemoveAt (int index)
  59                 {
  60                         throw new NotImplementedException();
  61                 }
  62
  63                 public int this[int index] {
  64                         get {
  65                                 if (start + index <= count)
  66                                         return start + index;
  67                                 else
  68                                         return -1;
  69                         }
  70                         set {
  71                                 throw new NotImplementedException();
  72                         }
  73                 }
  74
  75                 public void Add (int item)
  76                 {
  77                         throw new NotImplementedException();
  78                 }
  79
  80                 public void Clear ()
  81                 {
  82                         throw new NotImplementedException();
  83                 }
  84
  85                 public bool Contains (int item)
  86                 {
  87                         return start <= item && item <= start + count - 1;
  88                 }
  89
  90                 public void CopyTo (int[] array, int arrayIndex)
  91                 {
  92                         int counter = start;
  93                         for (int i = arrayIndex; i < array.Length && i < (i - arrayIndex) + count; i++)
  94                                 array[i] = counter++;
  95                 }
  96
  97                 public bool Remove (int item)
  98                 {
  99                         throw new NotImplementedException();
 100                 }
 101
 102                 public int Count {
 103                         get {
 104                                 return count;
 105                         }
 106                 }
 107
 108                 public bool IsReadOnly {
 109                         get {
 110                                 return true;
 111                         }
 112                 }
 113
 114                 IEnumerator<int> IEnumerable<int>.GetEnumerator ()
 115                 {
 116                         return null;
 117                 }
 118
 119                 IEnumerator IEnumerable.GetEnumerator ()
 120                 {
 121                         return null;
 122                 }
 123         }
 124 }
 125 #endif