1Sub::Exporter::GlobExpoUrsteerr(C3o)ntributed Perl DocumSeunbt:a:tEixopnorter::GlobExporter(3)
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NAME

6       Sub::Exporter::GlobExporter - export shared globs with Sub::Exporter
7       collectors
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VERSION

10       version 0.005
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SYNOPSIS

13       First, you write something that exports globs:
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15         package Shared::Symbol;
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17         use Sub::Exporter;
18         use Sub::Exporter::GlobExport qw(glob_exporter);
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20         use Sub::Exporter -setup => {
21           ...
22           collectors => { '$Symbol' => glob_exporter(Symbol => \'_shared_globref') },
23         };
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25         sub _shared_globref { return \*Common }
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27       Now other code can import $Symbol and get their *Symbol made an alias
28       to *Shared::Symbol::Common.
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30       If you don't know what this means or why you'd want to do it, you may
31       want to stop reading now.
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33       The other class can do something like this:
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35         use Shared::Symbol '$Symbol';
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37         print $Symbol; # prints the scalar entry of *Shared::Symbol::Common
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39       ...or...
40
41         use Shared::Symbol '$Symbol' => { -as => 'SharedSymbol' };
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43         print $SharedSymbol; # prints the scalar entry of *Shared::Symbol::Common
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45       ...or...
46
47         my $glob;
48         use Shared::Symbol '$Symbol' => { -as => \$glob };
49
50         print $$glob; # prints the scalar entry of *Shared::Symbol::Common
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OVERVIEW

53       Sub::Exporter::GlobExporter provides only one routine, "glob_exporter",
54       which may be called either by its full name or may be imported on
55       request.
56
57         my $exporter = glob_exporter( $default_name, $globref_locator );
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59       The routine returns a collection validator that will export a glob into
60       the importing package.  It will export it under the name $default_name,
61       unless an alternate name is given (as shown above).  The glob that is
62       installed is specified by the $globref_locator, which can be either the
63       globref itself, or a reference to a string which will be called on the
64       exporter
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66       For an example, see the "SYNOPSIS", in which a method is defined to
67       produce the globref to share.  This allows the glob-exporting package
68       to be subclassed, so the subclass may choose to either re-use the same
69       glob when exporting or to export a new one.
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71       If there are entries in the arguments to the globref-exporting
72       collector other than those beginning with a dash, a hashref of them
73       will be passed to the globref locator.  In other words, if we were to
74       write this:
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76         use Shared::Symbol '$Symbol' => { arg => 1, -as => 2 };
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78       It would result in a call like the following:
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80         my $globref = Shared::Symbol->_shared_globref({ arg => 1 });
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AUTHOR

83       Ricardo Signes <rjbs@cpan.org>
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CONTRIBUTOR

86       David Steinbrunner <dsteinbrunner@pobox.com>
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89       This software is copyright (c) 2010 by Ricardo Signes.
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91       This is free software; you can redistribute it and/or modify it under
92       the same terms as the Perl 5 programming language system itself.
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96perl v5.34.0                      2021-07-22    Sub::Exporter::GlobExporter(3)
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