private static List <List <long> > ParseIndexData(DsvReader reader)
{
var indexData = new List <List <long> >();
// Intially just use the default list capacity.
// https://github.com/dotnet/corefx/blob/master/src/Common/src/CoreLib/System/Collections/Generic/List.cs#L24
var capacity = 4;
while (reader.MoveNextRecord())
{
var recordIndexData = new List <long>(capacity);
while (reader.MoveNextValue())
{
var value = reader.Current;
recordIndexData.Add(Encode(reader.CurrentIndex, value.Length));
}
indexData.Add(recordIndexData);
// Assume the next row will have the same number of records as this one.
capacity = recordIndexData.Count;
}
return(indexData);
}
public DsvParser(DsvReader reader)
{
this.memory = reader.Memory;
this.indexData = ParseIndexData(reader);
}