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using System;
using System.Collections;
using System.Collections.Generic;
class Program
{
public static void Main ()
{
SerializeDictionary (new SerializerLazyDictionary ());
}
static void SerializeDictionary (IDictionary values)
{
}
static void SerializeDictionary (IDictionary<string, object> values)
{
}
}
sealed class SerializerLazyDictionary : LazyDictionary
{
protected override IEnumerator<KeyValuePair<string, object>> GetEnumerator ()
{
return null;
}
}
internal abstract class LazyDictionary : IDictionary<string, object>
{
void IDictionary<string, object>.Add (string key, object value)
{
throw new NotSupportedException ();
}
bool IDictionary<string, object>.ContainsKey (string key)
{
throw new NotSupportedException ();
}
ICollection<string> IDictionary<string, object>.Keys
{
get { throw new NotSupportedException (); }
}
bool IDictionary<string, object>.Remove (string key)
{
throw new NotSupportedException ();
}
bool IDictionary<string, object>.TryGetValue (string key, out object value)
{
throw new NotSupportedException ();
}
ICollection<object> IDictionary<string, object>.Values
{
get { throw new NotSupportedException (); }
}
object IDictionary<string, object>.this [string key] {
get {
throw new NotSupportedException ();
}
set {
throw new NotSupportedException ();
}
}
void ICollection<KeyValuePair<string, object>>.Add (KeyValuePair<string, object> item)
{
throw new NotSupportedException ();
}
void ICollection<KeyValuePair<string, object>>.Clear ()
{
throw new NotSupportedException ();
}
bool ICollection<KeyValuePair<string, object>>.Contains (KeyValuePair<string, object> item)
{
throw new NotSupportedException ();
}
void ICollection<KeyValuePair<string, object>>.CopyTo (KeyValuePair<string, object> [] array, int arrayIndex)
{
throw new NotSupportedException ();
}
int ICollection<KeyValuePair<string, object>>.Count
{
get { throw new NotSupportedException (); }
}
bool ICollection<KeyValuePair<string, object>>.IsReadOnly
{
get { throw new NotSupportedException (); }
}
bool ICollection<KeyValuePair<string, object>>.Remove (KeyValuePair<string, object> item)
{
throw new NotSupportedException ();
}
IEnumerator<KeyValuePair<string, object>> IEnumerable<KeyValuePair<string, object>>.GetEnumerator ()
{
return GetEnumerator ();
}
protected abstract IEnumerator<KeyValuePair<string, object>> GetEnumerator ();
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator ()
{
return ((IEnumerable<KeyValuePair<string, object>>) this).GetEnumerator ();
}
}
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