Possible unintended interpolation of @$ in string

[jidanni]

Perl warns here,
$ echo o|perl -plwe 's/./@@@@$&/'
Possible unintended interpolation of @$ in string at -e line 1.
@@@&
Perhaps it should also warn here:
$ echo o|perl -plwe 's/(.)/@@@@$1/'
@@@

If so please submit a bug for me, because my address is blocked from
perl.org.

 

[derykus]

Perl warns here,
$ echo o|perl -plwe 's/./@@@@$&/'

^^^^^
-Mdiagnostics -plwe

 

[smallpond]

Perl warns here,
$ echo o|perl -plwe 's/./@@@@$&/'
Possible unintended interpolation of @$ in string at -e line 1.
@@@&
Perhaps it should also warn here:
$ echo o|perl -plwe 's/(.)/@@@@$1/'
@@@

If so please submit a bug for me, because my address is blocked from
perl.org.

I don't know how perl could be expected to know what was intended.
@$ seems to be cromulent.

perl -we '$$[0]="That is"; $$[1]="messed up"; print join " ",@$'
That is messed up