private void GetSlotNames(int col, ref VBuffer <ReadOnlyMemory <char> > dst)
{
Contracts.Assert(col == 0);
var nameList = new List <ReadOnlyMemory <char> >();
var indexList = new List <int>();
foreach (var kvp in _collection.GetNonDefaultFeatureNames())
{
nameList.Add(kvp.Value.AsMemory());
indexList.Add(kvp.Key);
}
Contracts.Assert(nameList.Count == indexList.Count);
var editor = VBufferEditor.Create(ref dst, _collection.Count, nameList.Count);
nameList.CopyTo(editor.Values);
if (nameList.Count < _collection.Count)
{
indexList.CopyTo(editor.Indices);
}
dst = editor.Commit();
}
