NAME
namespace::clean - Keep imports out of your namespace
VERSION
0.01
SYNOPSIS
package Foo;
use warnings;
use strict;
use Carp qw(croak); # will be removed
sub bar { 23 } # will be removed
use namespace::clean;
sub baz { bar() } # still defined, 'bar' still bound
### Will print:
# No
# No
# Yes
print +(__PACKAGE__->can('croak') ? 'Yes' : 'No'), "\n";
print +(__PACKAGE__->can('bar') ? 'Yes' : 'No'), "\n";
print +(__PACKAGE__->can('baz') ? 'Yes' : 'No'), "\n";
1;DESCRIPTION
When you define a function, or import one, into a Perl package, it will naturally also be available as a method. This does not per se cause problems, but it can complicate subclassing and, for example, plugin classes that are included by loading them as base classes.
The namespace::clean pragma will remove all previously declared or imported symbols at the end of the current package's compile cycle. This means that functions are already bound by their name, and calls to them still work. But they will not be available as methods on your class or instances.
METHODS
You shouldn't need to call any of these. Just use the package at the appropriate place.
import
Makes a snapshot of the current defined functions and registers a Filter::EOF cleanup routine to remove those symbols from the package at the end of the compile-time.
get_functions
Takes a class as argument and returns all currently defined functions in it as a hash reference with the function name as key and a typeglob reference to the symbol as value.
SEE ALSO
AUTHOR AND COPYRIGHT
Robert 'phaylon' Sedlacek <rs@474.at>, with many thanks to Matt S Trout for the inspiration on the whole idea.
LICENSE
This program is free software; you can redistribute it and/or modify it under the same terms as perl itself.