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using System;
using System.Collections;
using System.Collections.Generic;
class MyList<T> : IEnumerable<T>
{
public IEnumerator<T> GetEnumerator ()
{
yield break;
}
IEnumerator IEnumerable.GetEnumerator ()
{
return GetEnumerator ();
}
}
struct Foo<T>
{
public readonly T Data;
public Foo (T data)
{
this.Data = data;
}
}
class X
{
static void Main ()
{
MyList<Foo<int>> list = new MyList <Foo<int>> ();
foreach (Foo<int> foo in list)
;
}
}
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