Beefy Boxes and Bandwidth Generously Provided by pair Networks
We don't bite newbies here... much
 
PerlMonks  

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
So the design of Param Role goes through all the trouble of making the params full-blown Moose Attributes rather than just arguments, and a parameter object rather than a hashref, but then you are careful not to close over either of them but only on plain values extracted from them.

No, those are parameters, they just look like Moose attributes, but underneath they are different.

Ref-counting leaks would be some kind of circular reference that the system is not tracking correctly. Or for whatever reason, the past existence of such leaks is why you are leery of closing over the complicated linked-up Moose objects involving anonymous classes.

Yes, Perl is pretty good at doing this, but sometimes if you have values passed around a lot inside objects, you can get a reference you didn't intend to keep. And closures tend to be a big source of these since people don't often notice all that it is they are closing over.

-stvn

In reply to Re^9: Moose: What about "class" attributes? by stvn
in thread Moose: What about "class" attributes? by John M. Dlugosz

Title:
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?
Username:
Password:

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

How do I use this? | Other CB clients
Other Users?
Others pondering the Monastery: (6)
As of 2021-12-07 22:24 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?
    R or B?



    Results (34 votes). Check out past polls.

    Notices?