See also stringification, which allows you to say:

no stringification;

[download]

and forbids

 "$ref"             # stringify
 $ref . "foo"       # concat
 lc $ref
 lcfirst $ref
 uc $ref
 ucfirst $ref
 quotemeta $ref

[download]

In reply to Re^11: Shouldn't references be readonly? (updated) by Corion
in thread Shouldn't LITERAL references be readonly? (updated) by LanX

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