How to make `read` fail if there is not enough fields in the input?

[Peng Yu]

I’d like to know whether there is enough field in a TSV row. But the status 
code does not return an error code. Is there a way to let read return non-zero 
if there is not enough fields? Thanks.

$ IFS=$'\t' read -r x y <<< x
$ echo $?
0


Regards,
Peng