1Exporter::Declare::MetaU(s3e)r Contributed Perl DocumentaEtxipoonrter::Declare::Meta(3)
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NAME

6       Exporter::Declare::Meta - The meta object which stores meta-data for
7       all exporters.
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DESCRIPTION

10       All classes that use Exporter::Declare have an associated Meta object.
11       Meta objects track available exports, tags, and options.
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METHODS

14       $class->new( $package )
15           Created a meta object for the specified package. Also injects the
16           export_meta() sub into the package namespace that returns the
17           generated meta object.
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19       $class->new_from_exporter( $package )
20           Create a meta object for a package that already uses Exporter.pm.
21           This will not turn the class into an Exporter::Declare package, but
22           it will create a meta object and export_meta() method on it. This
23           si primarily used for reexport purposes.
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25       $package = $meta->package()
26           Get the name of the package with which the meta object is
27           associated.
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29       $meta->add_alias()
30           Usually called at construction to add a package alias function to
31           the exports.
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33       $meta->add_export( $name, $ref )
34           Add an export, name should be the item name with sigil (assumed to
35           be sub if there is no sigil). $ref should be a ref blessed as an
36           Exporter::Declare::Export subclass.
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38       $meta->get_export( $name )
39           Retrieve the Exporter::Declare::Export object by name. Name should
40           be the item name with sigil, assumed to be sub when sigil is
41           missing.
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43       $meta->export_tags_push( $name, @items )
44           Add @items to the specified tag. Tag will be created if it does not
45           already exist. $name should be the tag name WITHOUT -/: prefix.
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47       @list = $meta->export_tags_get( $name )
48           Get the list of items associated with the specified tag.  $name
49           should be the tag name WITHOUT -/: prefix.
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51       @list = $meta->export_tags_list()
52           Get a list of all export tags.
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54       $bool = $meta->is_tag( $name )
55           Check if a tag with the given name exists.  $name should be the tag
56           name WITHOUT -/: prefix.
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58       $meta->options_add( $name )
59           Add import options by name. These will be boolean options that take
60           no arguments.
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62       my @list = $meta->options_list()
63       $meta->arguments_add( $name )
64           Add import options that slurp in the next argument as a value.
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66       $bool = $meta->is_option( $name )
67           Check if the specified name is an option.
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69       $bool = $meta->is_argument( $name )
70           Check if the specified name is an option that takes an argument.
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72       $meta->add_parser( $name, sub { ... })
73           Add a parser sub that should be associated with exports via
74           Devel::Declare
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76       $meta->get_parser( $name )
77           Get a parser by name.
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79       $ref = $meta->get_ref_from_package( $item )
80           Returns a reference to a specific package variable or sub.
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82       $meta->reexport( $package )
83           Re-export the exports in the provided package. Package may be an
84           Exporter::Declare based package or an Exporter based package.
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86       $meta->merge( $meta2 )
87           Merge-in the exports and tags of the second meta object.
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AUTHORS

90       Chad Granum exodist7@gmail.com
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93       Copyright (C) 2010 Chad Granum
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95       Exporter-Declare is free software; Standard perl licence.
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97       Exporter-Declare is distributed in the hope that it will be useful, but
98       WITHOUT ANY WARRANTY; without even the implied warranty of
99       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the license
100       for more details.
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104perl v5.28.0                      2018-07-14        Exporter::Declare::Meta(3)
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