LanX suggested moving the CB discussion to a more persistent medium, so here we are. My objection to the above answer (at which the @-response was directed) was that writing \&$a no more guarantees that $a is a coderef than just writing $a does. (It maybe indicates more strongly that we think that $a is a coderef, but, if our thoughts about programs were always correct, then we wouldn't need compile-, or even run-, time checking.) We still get a run-time error if $a is not a coderef.

Defining one's own prototype is a great solution, I agree, but doesn't help if (somewhat ironically) I'm trying to use Scalar::Util::set_prototype to set the prototype of a named coderef. :-)

In reply to Re^2: coderefs and (&) prototypes by JadeNB
in thread coderefs and (&) prototypes by LanX

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