UNIVERSAL::require - require modules from a variable |
UNIVERSAL::require - require() modules from a variable
# This only needs to be said once in your program. require UNIVERSAL::require;
# Same as "require Some::Module;" Some::Module->require;
# Ditto my $module = 'Some::Module'; $module->require;
If you've ever had to do this...
eval "require $module";
to get around the bareword caveats on require(), this module is for
you. It creates a universal require()
class method that will work
with every Perl module. So instead of doing some arcane eval()
work,
you can do this:
$module->require;
And use Some::Module
can be done dynamically like so:
BEGIN { $module->require; $module->import; }
It doesn't save you much typing, but it'll make alot more sense to someone who's not a ninth level Perl acolyte.
my $return_val = $module->require; my $return_val = $module->require($version);
This works exactly like Perl's require, except without the bareword
restriction, and it doesn't die. Since require()
is placed in the
UNIVERSAL namespace, it will work on any module. You just have to
use UNIVERSAL::require somewhere in your code.
Should the module require fail, or not be a high enough $version, it will simply return false and not die. The error will be in $UNIVERSAL::require::ERROR.
Michael G Schwern <schwern@pobox.com>
the UNIVERSAL::exports manpage, require in the perlfunc manpage, http://dev.perl.org/rfc/253.pod
UNIVERSAL::require - require modules from a variable |