public override Token Next(Token result)
{
Token t = input.Next(result);
sink.Add(t);
return(t);
}
public override Token Next(/* in */ Token reusableToken)
{
System.Diagnostics.Debug.Assert(reusableToken != null);
Token nextToken = input.Next(reusableToken);
sink.Add(nextToken);
return(nextToken);
}