public bool MoveNext()
{
if (version != tree.version)
{
ThrowHelper.ThrowInvalidOperationException(ExceptionResource.InvalidOperation_EnumFailedVersion);
}
if (stack.Count == 0)
{
current = null;
return(false);
}
current = stack.Pop();
TreeSet <T> .Node node = current.Right;
while (node != null)
{
stack.Push(node);
node = node.Left;
}
return(true);
}
public TValue this[TKey key]
{
get
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
TreeSet <KeyValuePair <TKey, TValue> > .Node node = _set.FindNode(new KeyValuePair <TKey, TValue>(key, default(TValue)));
if (node == null)
{
throw new KeyNotFoundException(SR.Format(SR.Arg_KeyNotFoundWithKey, key.ToString()));
}
return(node.Item.Value);
}
set
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
TreeSet <KeyValuePair <TKey, TValue> > .Node node = _set.FindNode(new KeyValuePair <TKey, TValue>(key, default(TValue)));
if (node == null)
{
_set.Add(new KeyValuePair <TKey, TValue>(key, value));
}
else
{
node.Item = new KeyValuePair <TKey, TValue>(node.Item.Key, value);
_set.UpdateVersion();
}
}
}
public SortedDictionary(IComparer <TKey> comparer)
{
_set = new TreeSet <KeyValuePair <TKey, TValue> >(new KeyValuePairComparer(comparer));
}
internal Enumerator(SortedDictionary <TKey, TValue> dictionary, int getEnumeratorRetType)
{
_treeEnum = dictionary._set.GetEnumerator();
_getEnumeratorRetType = getEnumeratorRetType;
}
internal Enumerator(SortedDictionary <TKey, TValue> dictionary)
{
_treeEnum = dictionary._set.GetEnumerator();
}