Hi monks,

I have one question about passing subroutines as arguments in packages.

Here is my simple code for question:

* file: FooConfig.pm 

package FooConfig;

use strict;

[ constructor and some functions ]

sub important_func
{
 my $self = shift;
 my $arg = shift;

 my %hash =
 (
  '1' => 'red',
  '2' => 'blue',
  '3' => 'green',
 )

 return $hash{ $arg } if $hash{ $arg };
}

[download]

* file: Foo.pm

package Foo;

use strict;

[ constructor and some functions ]

sub somesub_foo
{
 my $self = shift;

 [...]
 use FooConfig;
 my $FooConfig = FooConfig->new;

 my $ref = \&FooConfig->important_func( '1' );

 [ do something with this ]
}

[download]

Result is: Undefined subroutine &Foo::FooConfig->important_func called at /path_somewhere/Foo.pm line 123

Im trying &$FooConfig, \$FooConfig and many other this without success. :(

Valid usage this function: $FooConfig->important_func, but reference return &PackageName:: before and i got this error. What's wrong with this?

Best regards,

In reply to Passing subroutine as argument between packages by Mateusz

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.