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using System;
using System.Collections;
using System.Collections.Generic;
class Test {
public static void Main ()
{
FooList<string> l = new FooList<string> ();
Foo<string> (l);
}
static void Foo<T> (IList<T> list)
{
ICollection coll = list as ICollection;
if (coll != null)
Console.WriteLine (coll.Count);
}
}
public class FooList<T> : IList<T> {
public int IndexOf (T item)
{
throw new NotImplementedException ();
}
public void Insert (int index, T item)
{
throw new NotImplementedException ();
}
public void RemoveAt (int index)
{
throw new NotImplementedException ();
}
public T this [int index]
{
get { throw new NotImplementedException (); }
set { throw new NotImplementedException (); }
}
public void Add (T item)
{
throw new NotImplementedException ();
}
public void Clear ()
{
throw new NotImplementedException ();
}
public bool Contains (T item)
{
throw new NotImplementedException ();
}
public void CopyTo (T [] array, int arrayIndex)
{
throw new NotImplementedException ();
}
public bool Remove (T item)
{
throw new NotImplementedException ();
}
public int Count
{
get { throw new NotImplementedException (); }
}
public bool IsReadOnly
{
get { throw new NotImplementedException (); }
}
IEnumerator<T> IEnumerable<T>.GetEnumerator ()
{
throw new NotImplementedException ();
}
public IEnumerator GetEnumerator ()
{
throw new NotImplementedException ();
}
}
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