public TValue this[TKey key]
{
get
{
// key could be null
if (key == null)
{
// ConcurrentDictionary hates null
throw new ArgumentNullException(nameof(key));
}
return(_wrapped[key]);
}
set
{
// key could be null
if (key == null)
{
// ConcurrentDictionary hates null
throw new ArgumentNullException(nameof(key));
}
_wrapped.Set(key, value);
}
}