1Sub::Exporter::GlobExpoUrsteerr(C3o)ntributed Perl DocumSeunbt:a:tEixopnorter::GlobExporter(3)
2
3
4

NAME

6       Sub::Exporter::GlobExporter - export shared globs with Sub::Exporter
7       collectors
8

VERSION

10       version 0.006
11

SYNOPSIS

13       First, you write something that exports globs:
14
15         package Shared::Symbol;
16
17         use Sub::Exporter;
18         use Sub::Exporter::GlobExport qw(glob_exporter);
19
20         use Sub::Exporter -setup => {
21           ...
22           collectors => { '$Symbol' => glob_exporter(Symbol => \'_shared_globref') },
23         };
24
25         sub _shared_globref { return \*Common }
26
27       Now other code can import $Symbol and get their *Symbol made an alias
28       to *Shared::Symbol::Common.
29
30       If you don't know what this means or why you'd want to do it, you may
31       want to stop reading now.
32
33       The other class can do something like this:
34
35         use Shared::Symbol '$Symbol';
36
37         print $Symbol; # prints the scalar entry of *Shared::Symbol::Common
38
39       ...or...
40
41         use Shared::Symbol '$Symbol' => { -as => 'SharedSymbol' };
42
43         print $SharedSymbol; # prints the scalar entry of *Shared::Symbol::Common
44
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
51

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 );
58
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 $globref_locator, which can be either the
63       globref itself, or a reference to a string which will be called on the
64       exporter
65
66       For an example, see the "SYNOPSIS", in which a method is defined to
67       produce the globref to share.  This allows the glob-exporting package
68       to be subclassed, so the subclass may choose to either re-use the same
69       glob when exporting or to export a new one.
70
71       If there are entries in the arguments to the globref-exporting
72       collector other than those beginning with a dash, a hashref of them
73       will be passed to the globref locator.  In other words, if we were to
74       write this:
75
76         use Shared::Symbol '$Symbol' => { arg => 1, -as => 2 };
77
78       It would result in a call like the following:
79
80         my $globref = Shared::Symbol->_shared_globref({ arg => 1 });
81

PERL VERSION

83       This library should run on perls released even a long time ago.  It
84       should work on any version of perl released in the last five years.
85
86       Although it may work on older versions of perl, no guarantee is made
87       that the minimum required version will not be increased.  The version
88       may be increased for any reason, and there is no promise that patches
89       will be accepted to lower the minimum required perl.
90

AUTHOR

92       Ricardo Signes <cpan@semiotic.systems>
93

CONTRIBUTORS

95       •   David Steinbrunner <dsteinbrunner@pobox.com>
96
97       •   Ricardo Signes <rjbs@semiotic.systems>
98

100       This software is copyright (c) 2010 by Ricardo Signes.
101
102       This is free software; you can redistribute it and/or modify it under
103       the same terms as the Perl 5 programming language system itself.
104
105
106
107perl v5.38.0                      2023-07-21    Sub::Exporter::GlobExporter(3)
Impressum