Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

Is there an eligant way to make methods in perl really private?

You're got some good answers above. Here's a different approach.

You can get the delayed effect of private methods by adopting a simple convention: Start all private methods with an underscore, and teach people not to invoke these methods from outside of the class hierarchy1. To enforce this, it's a simple matter to spider your code base looking for references to private methods that are not preceded by "$self->".

Having a script that traverses the code base looking for certain patterns can be very useful. In team settings, I've set up scripts to look for special code patterns (e.g., "TBD" or "FIXME" comments, correct copyright strings, etc.) The scripts ran every night, and produced a report (an HTML page) that we would check every morning. It also gave us an easy way to chart our code growth over time.

The question you'll need to ask yourself is whether you can live with the delay. I've found that the convention was good enough.

1 Purists will note that this really enforced "protected" methods.

In reply to Re: REALLY Private Methods in perl: Is Perl Flexible enough to be made Inflexible? by dws
in thread REALLY Private Methods in perl: Is Perl Flexible enough to be made Inflexible? by penguin

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Are you posting in the right place? Check out Where do I post X? to know for sure.
  • Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
    <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
  • Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
  • Want more info? How to link or or How to display code and escape characters are good places to start.
Log In?

What's my password?
Create A New User
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (4)
As of 2021-06-20 23:56 GMT
Find Nodes?
    Voting Booth?
    What does the "s" stand for in "perls"? (Whence perls)

    Results (97 votes). Check out past polls.