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using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
// TODO: @bond Remove
namespace SharpCifs.Util.Sharpen
{
internal static class Collections<T>
{
static readonly IList<T> Empty = new T [0];
public static IList<T> EmptySet {
get { return Empty; }
}
}
public static class Collections
{
public static bool AddAll<T> (ICollection<T> list, IEnumerable toAdd)
{
foreach (T t in toAdd)
list.Add (t);
return true;
}
public static TV Remove<TK, TV> (IDictionary<TK, TV> map, TK toRemove) where TK : class
{
TV local;
if (map.TryGetValue (toRemove, out local)) {
map.Remove (toRemove);
return local;
}
return default(TV);
}
public static T[] ToArray<T> (ICollection<T> list)
{
T[] array = new T[list.Count];
list.CopyTo (array, 0);
return array;
}
public static T[] ToArray<T>(List<object> list)
{
T[] array = new T[list.Count];
for(int c = 0; c < list.Count; c++)
{
array[c] = (T)list[c];
}
return array;
}
public static TU[] ToArray<T,TU> (ICollection<T> list, TU[] res) where T:TU
{
if (res.Length < list.Count)
res = new TU [list.Count];
int n = 0;
foreach (T t in list)
res [n++] = t;
if (res.Length > list.Count)
res [list.Count] = default (T);
return res;
}
public static IDictionary<TK,TV> EmptyMap<TK,TV> ()
{
return new Dictionary<TK,TV> ();
}
public static IList<T> EmptyList<T> ()
{
return Collections<T>.EmptySet;
}
public static ICollection<T> EmptySet<T> ()
{
return Collections<T>.EmptySet;
}
public static IList<T> NCopies<T> (int n, T elem)
{
List<T> list = new List<T> (n);
while (n-- > 0) {
list.Add (elem);
}
return list;
}
public static void Reverse<T> (IList<T> list)
{
int end = list.Count - 1;
int index = 0;
while (index < end) {
T tmp = list [index];
list [index] = list [end];
list [end] = tmp;
++index;
--end;
}
}
public static ICollection<T> Singleton<T> (T item)
{
List<T> list = new List<T> (1);
list.Add (item);
return list;
}
public static IList<T> SingletonList<T> (T item)
{
List<T> list = new List<T> (1);
list.Add (item);
return list;
}
public static IList<T> SynchronizedList<T> (IList<T> list)
{
return new SynchronizedList<T> (list);
}
public static ICollection<T> UnmodifiableCollection<T> (ICollection<T> list)
{
return list;
}
public static IList<T> UnmodifiableList<T> (IList<T> list)
{
return new ReadOnlyCollection<T> (list);
}
public static ICollection<T> UnmodifiableSet<T> (ICollection<T> list)
{
return list;
}
public static IDictionary<TK,TV> UnmodifiableMap<TK,TV> (IDictionary<TK,TV> dict)
{
return dict;
}
}
}
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