Won't this fail if a second module tries to use base?

You could make your own customised class which follows the conventions of "use": 

use baseimp
  'Foo' => ['Import', 'some', 'stuff'],
  'Bar', # import defaults
  'Buz' => [] # don't call import, just like use Buz ()

package baseimp;

use base 'base'; # :)

# unfortunately most modules (including base.pm) are hardwired to use 
+caller(0) so trickery is needed

use Sub::Uplevel;

sub import
{
  my $pkg = shift;

  $base_import = UNIVERSAL::can(__PACKAGE__, "SUPER::import");
  while (my $class = shift)
  {
    # let base do it's thing
    uplevel(1, $base_import, $class);

    # now do what use would do
    my $imp_args;

    if (ref($_[0]))
    {
      $imp_args = shift;
      undef $imp_args unless @$imp_args;
    }
    else
    {
      $imp_args = [];
    }

    if ($imp_args)
    {
      $class_import = UNIVERSAL::can($class, "import");
      uplevel(1, $class_import, $class, @$imp_args);
    }
  }
}

[download]

So without any array refs, this works exactly like base except it _does_ import stuff, when you add array refs you get to control the imports exactly as with a normal use.

In reply to Re: use base 'XYZ' and exporting by fergal
in thread use base 'XYZ' and exporting by japhy

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.