/// <summary>
/// Removes multiple items at once.
/// </summary>
public void RemoveMany(RemoveManyDictionaryDelegate <TKey, TValue> checkDelegate)
{
if (checkDelegate == null)
{
throw new ArgumentNullException("checkDelegate");
}
int count = _indexes.Length;
for (int i = 0; i < count; i++)
{
int lastNodeIndex = -1;
int nodeIndex = _indexes[i];
while (nodeIndex != -1)
{
TKey key = _nodes[nodeIndex]._key;
TValue value = _nodes[nodeIndex]._value;
if (!checkDelegate(key, value))
{
lastNodeIndex = nodeIndex;
nodeIndex = _nodes[nodeIndex]._nextNodeIndex;
continue;
}
int nextNodeIndex = _nodes[nodeIndex]._nextNodeIndex;
if (lastNodeIndex == -1)
{
_indexes[i] = nextNodeIndex;
}
else
{
_nodes[lastNodeIndex]._nextNodeIndex = nextNodeIndex;
}
if (!typeof(TKey).IsPrimitive)
{
_nodes[nodeIndex]._key = default(TKey);
}
if (!typeof(TValue).IsPrimitive)
{
_nodes[nodeIndex]._value = default(TValue);
}
_nodes[nodeIndex]._nextNodeIndex = _indexOfFirstFree;
_indexOfFirstFree = nodeIndex;
_count--;
nodeIndex = nextNodeIndex;
}
}
}
/// <summary>
/// Remove many pairs at once. Each pair will call the checkDelegate to know if it
/// should be removed or not. This is much faster than iterating the entire
/// dictionary and then removing the unnecessary items.
/// </summary>
public void RemoveMany(RemoveManyDictionaryDelegate <TKey, TValue> checkDelegate)
{
if (checkDelegate == null)
{
throw new ArgumentNullException("checkDelegate");
}
var owner = _GetOwner();
owner._RemoveMany(checkDelegate);
}
