/usr/share/perl/5.22.1/Module/Loaded.pm is in perl-modules-5.22 5.22.1-9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | package Module::Loaded;
use strict;
use Carp qw[carp];
BEGIN { use base 'Exporter';
use vars qw[@EXPORT $VERSION];
$VERSION = '0.08';
@EXPORT = qw[mark_as_loaded mark_as_unloaded is_loaded];
}
=head1 NAME
Module::Loaded - mark modules as loaded or unloaded
=head1 SYNOPSIS
use Module::Loaded;
$bool = mark_as_loaded('Foo'); # Foo.pm is now marked as loaded
$loc = is_loaded('Foo'); # location of Foo.pm set to the
# loaders location
eval "require 'Foo'"; # is now a no-op
$bool = mark_as_unloaded('Foo'); # Foo.pm no longer marked as loaded
eval "require 'Foo'"; # Will try to find Foo.pm in @INC
=head1 DESCRIPTION
When testing applications, often you find yourself needing to provide
functionality in your test environment that would usually be provided
by external modules. Rather than munging the C<%INC> by hand to mark
these external modules as loaded, so they are not attempted to be loaded
by perl, this module offers you a very simple way to mark modules as
loaded and/or unloaded.
=head1 FUNCTIONS
=head2 $bool = mark_as_loaded( PACKAGE );
Marks the package as loaded to perl. C<PACKAGE> can be a bareword or
string.
If the module is already loaded, C<mark_as_loaded> will carp about
this and tell you from where the C<PACKAGE> has been loaded already.
=cut
sub mark_as_loaded (*) {
my $pm = shift;
my $file = __PACKAGE__->_pm_to_file( $pm ) or return;
my $who = [caller]->[1];
my $where = is_loaded( $pm );
if ( defined $where ) {
carp "'$pm' already marked as loaded ('$where')";
} else {
$INC{$file} = $who;
}
return 1;
}
=head2 $bool = mark_as_unloaded( PACKAGE );
Marks the package as unloaded to perl, which is the exact opposite
of C<mark_as_loaded>. C<PACKAGE> can be a bareword or string.
If the module is already unloaded, C<mark_as_unloaded> will carp about
this and tell you the C<PACKAGE> has been unloaded already.
=cut
sub mark_as_unloaded (*) {
my $pm = shift;
my $file = __PACKAGE__->_pm_to_file( $pm ) or return;
unless( defined is_loaded( $pm ) ) {
carp "'$pm' already marked as unloaded";
} else {
delete $INC{ $file };
}
return 1;
}
=head2 $loc = is_loaded( PACKAGE );
C<is_loaded> tells you if C<PACKAGE> has been marked as loaded yet.
C<PACKAGE> can be a bareword or string.
It returns falls if C<PACKAGE> has not been loaded yet and the location
from where it is said to be loaded on success.
=cut
sub is_loaded (*) {
my $pm = shift;
my $file = __PACKAGE__->_pm_to_file( $pm ) or return;
return $INC{$file} if exists $INC{$file};
return;
}
sub _pm_to_file {
my $pkg = shift;
my $pm = shift or return;
my $file = join '/', split '::', $pm;
$file .= '.pm';
return $file;
}
=head1 BUG REPORTS
Please report bugs or other issues to E<lt>bug-module-loaded@rt.cpan.org<gt>.
=head1 AUTHOR
This module by Jos Boumans E<lt>kane@cpan.orgE<gt>.
=head1 COPYRIGHT
This library is free software; you may redistribute and/or modify it
under the same terms as Perl itself.
=cut
# Local variables:
# c-indentation-style: bsd
# c-basic-offset: 4
# indent-tabs-mode: nil
# End:
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