Smart Match is not recursive in 5.10

[szabgab]

I am not sure it should be but I just found that

42 ~~  [23, 17, "42x", 70]

will give you a warning

Argument "42x" isn't numeric in smart match

It is the described behavior as this is Num ~~ Array case but I wonder why it is doing == and not smart matching on each individual element of the Array?

Update

Since then I had another issue with smart matching: "42" ~~ "42.0" is false in 5.10 and I have written a few blog entries too about Smart Matching and Switching in Perl 5.10. If someone is interested...

[polettix]

While I don't know why (efficiency, I presume, or simplicity, or simply nobody tought about it, or whatever), I was thinking that recursively applying the smart match on each individual element would allow smart-matching over a "complicated" data structure, like a matrix. Something like:

   42 ~~ [
           [ 0  .. 9 ],
           [ 20 .. 29 ],
           [ 40 .. 49 ],
         ]

I'm still wondering if this could be named a feature or a bug, anyway :D

[mikfire]

When did you build? How did you generate this error? I am trying it like this:

 perl -E 'say 42 ~~ [23,17,"42x",70]'

and generating no error. It actually returns true, like I would expect.

[FunkyMonk]

It's a warning, not an error. Try it with warnings enabled.

[mikfire]

D'oh. Thanks.