I'm looking for the 'right' way to call a function from within the module when that module is usually blessed. I've been putting an empty string as the first parameter passed to the function but I feel sure there is a nicer way to do this.

package Some::Module;

use strict;

sub new {
    return bless {};
}

sub do_something {
    my ($self, $param) = @_;
    # ...do something...
    return $param;
}

sub do_more {
    my $self = shift;
    return do_something('example');
}

[download]

If we create an instance of this then call the function 

my $instance = Some::Module->new;
$instance->do_something('testing');

[download]
a reference to $instance is passed to $self in the function (I think) and 'testing' is passed to $param.

But when the same function is called from within the module by do_more();, there isn't a reference to anything to be passed to do_something as the first argument so the argument list is out. Do we just add a dummy argument to the call within do_more like this 

sub do_more {
    my $self = shift;
    return do_something('', 'example');
}

[download]
or is there a more elegant solution?

In reply to Calling module function from within a blessed module by Bod

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


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.