public void Reset()
{
// don't bother if we haven't moved.
if (-1 == _state)
{
return;
}
try
{
// optimization for streamreader.
var sr = _reader as StreamReader;
if (null != sr && null != sr.BaseStream && sr.BaseStream.CanSeek && 0L == sr.BaseStream.Seek(0, SeekOrigin.Begin))
{
_state = -1;
return;
}
}
catch (IOException) { }
if (!_outer.CanCreateReader)
{
throw new NotSupportedException();
}
_Dispose(true);
_reader = _outer.CreateTextReader();
_state = -1;
}
internal TextReaderEnumerator(TextReaderEnumerable outer)
{
_outer = outer;
_reader = null;
if (_outer.CanCreateReader)
{
Reset();
}
else
{
_state = -1;
_reader = _outer.CreateTextReader(); // doesn't really recreate it
}
}