1Module::Loaded(3pm) Perl Programmers Reference Guide Module::Loaded(3pm)
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6 Module::Loaded - mark modules as loaded or unloaded
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9 use Module::Loaded;
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11 $bool = mark_as_loaded('Foo'); # Foo.pm is now marked as loaded
12 $loc = is_loaded('Foo'); # location of Foo.pm set to the
13 # loaders location
14 eval "require 'Foo'"; # is now a no-op
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16 $bool = mark_as_unloaded('Foo'); # Foo.pm no longer marked as loaded
17 eval "require 'Foo'"; # Will try to find Foo.pm in @INC
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20 When testing applications, often you find yourself needing to provide
21 functionality in your test environment that would usually be provided
22 by external modules. Rather than munging the %INC by hand to mark these
23 external modules as loaded, so they are not attempted to be loaded by
24 perl, this module offers you a very simple way to mark modules as
25 loaded and/or unloaded.
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28 $bool = mark_as_loaded( PACKAGE );
29 Marks the package as loaded to perl. "PACKAGE" can be a bareword or
30 string.
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32 If the module is already loaded, "mark_as_loaded" will carp about this
33 and tell you from where the "PACKAGE" has been loaded already.
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35 $bool = mark_as_unloaded( PACKAGE );
36 Marks the package as unloaded to perl, which is the exact opposite of
37 "mark_as_loaded". "PACKAGE" can be a bareword or string.
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39 If the module is already unloaded, "mark_as_unloaded" will carp about
40 this and tell you the "PACKAGE" has been unloaded already.
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42 $loc = is_loaded( PACKAGE );
43 "is_loaded" tells you if "PACKAGE" has been marked as loaded yet.
44 "PACKAGE" can be a bareword or string.
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46 It returns falls if "PACKAGE" has not been loaded yet and the location
47 from where it is said to be loaded on success.
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50 Please report bugs or other issues to
51 <bug-module-loaded@rt.cpan.org<gt>.
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54 This module by Jos Boumans <kane@cpan.org>.
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57 This library is free software; you may redistribute and/or modify it
58 under the same terms as Perl itself.
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62perl v5.32.1 2021-03-31 Module::Loaded(3pm)