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OO Newbie Mistake #23 More | Login | Reply

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A counter-example ... (Score:2)

by drhyde (1683) on 2006.10.03 8:46 (#50711) Homepage Journal

Consider the case where you usually want to validate something (eg whether a user has permission to access a file) for the current user, but sometimes for some other user, like in File::Find::Rule::Permissions [cpan.org].
This means that at least sometimes you have to pass in that parameter. For the sake of making the parameter list easier to parse, or to avoid confusing maintenance programmers by having the same method take two different forms of its arguments, I think I would at least consider always passing in the username.
I prefer to pass a hash of parameters thus faking up named parameters. That avoids both of the problems above. But using named parameters is a coding style choice that might not suit all cases.

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