Determines if IN[_] preserves the shape of its underlying ShiftedRead.
If it does preserve that shape then it returns the IdStatus of that
ShiftedRead. If it doesn't then none is returned.
This can easily be extended to also include Read, possibly with extra info
to indicate whether the underlying read was Read or ShiftedRead.
Determines if
IN[_]
preserves the shape of its underlyingShiftedRead
. If it does preserve that shape then it returns theIdStatus
of thatShiftedRead
. If it doesn't thennone
is returned. This can easily be extended to also includeRead
, possibly with extra info to indicate whether the underlying read wasRead
orShiftedRead
.