Beefy Boxes and Bandwidth Generously Provided by pair Networks
Syntactic Confectionery Delight

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
For any future searchers ..

I saw Damian yesterday and chatted to him about it. The way to do it is for the subclass to override new:

sub new { my ($class, $args) = @_; $args->{value} = 23; return $class->SUPER::new($args); }
new() is actually installed into the parent class by Class::Std (rather than inherited), and because its receiving the caller, its able to do the right thing.

This is a workaround though. The next release of Class-Std will have a PREBUILD() method that runs before BUILD(). It goes in the opposite direction ("up" the inheritance tree) and allows the arguments to be changed before BUILD() gets them. So this will simply become:

sub PREBUILD { my ($class, $args) = @_; return { %{$args}, value => 23 }; }

In reply to Re: Overriding arguments in Class::Std superclass constructors by fce2
in thread Overriding arguments in Class::Std superclass constructors by fce2

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
Domain Nodelet?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (5)
As of 2022-09-24 20:35 GMT
Find Nodes?
    Voting Booth?
    I prefer my indexes to start at:

    Results (115 votes). Check out past polls.