Module::Loaded

Section: Perl Programmers Reference Guide (3pm)
Updated: 2021-03-31
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NAME

Module::Loaded - mark modules as loaded or unloaded

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

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 %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.

FUNCTIONS

$bool = mark_as_loaded( PACKAGE );

Marks the package as loaded to perl. "PACKAGE" can be a bareword or string.

If the module is already loaded, "mark_as_loaded" will carp about this and tell you from where the "PACKAGE" has been loaded already.

$bool = mark_as_unloaded( PACKAGE );

Marks the package as unloaded to perl, which is the exact opposite of "mark_as_loaded". "PACKAGE" can be a bareword or string.

If the module is already unloaded, "mark_as_unloaded" will carp about this and tell you the "PACKAGE" has been unloaded already.

$loc = is_loaded( PACKAGE );

"is_loaded" tells you if "PACKAGE" has been marked as loaded yet. "PACKAGE" can be a bareword or string.

It returns falls if "PACKAGE" has not been loaded yet and the location from where it is said to be loaded on success.

BUG REPORTS

Please report bugs or other issues to <bug-module-loaded@rt.cpan.org<gt>.

AUTHOR

This module by Jos Boumans <kane@cpan.org>.

COPYRIGHT

This library is free software; you may redistribute and/or modify it under the same terms as Perl itself.