1MooseX::Traits::PluggabUlsee(r3)Contributed Perl DocumenMtoaotsieoXn::Traits::Pluggable(3)
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6 MooseX::Traits::Pluggable - trait loading and resolution for Moose
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9 See MooseX::Traits for usage information.
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11 Use "new_with_traits" to construct an object with a list of traits and
12 "apply_traits" to apply traits to an instance.
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14 Adds support for class precedence search for traits and some extra
15 attributes, described below.
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18 If the value of "_trait_namespace" in MooseX::Traits starts with a "+"
19 the namespace will be considered relative to the
20 "class_precedence_list" (ie. @ISA) of the original class.
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22 Example:
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24 package Class1
25 use Moose;
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27 package Class1::Trait::Foo;
28 use Moose::Role;
29 has 'bar' => (
30 is => 'ro',
31 isa => 'Str',
32 required => 1,
33 );
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35 package Class2;
36 use parent 'Class1';
37 with 'MooseX::Traits';
38 has '+_trait_namespace' => (default => '+Trait');
39 has '+_traits_behave_like_roles' => (default => 1);
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41 package Class2::Trait::Bar;
42 use Moose::Role;
43 has 'baz' => (
44 is => 'ro',
45 isa => 'Str',
46 required => 1,
47 );
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49 package main;
50 my $instance = Class2->new_with_traits(
51 traits => ['Foo', 'Bar'],
52 bar => 'baz',
53 baz => 'quux',
54 );
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56 $instance->does('Class1::Trait::Foo'); # true
57 $instance->does('Class2::Trait::Bar'); # true
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60 You can search multiple namespaces for traits, for example:
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62 has '+_trait_namespace' => (
63 default => sub { [qw/+Trait +Role ExtraNS::Trait/] }
64 );
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66 Will search in the "class_precedence_list" for "::Trait::TheTrait" and
67 "::Role::TheTrait" and then for "ExtraNS::Trait::TheTrait".
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70 By default, a method from a role will override a class method, this
71 however is not the behavior one expects when applying a Moose role
72 using the normal methods.
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74 If you want the behavior to be consistent with Moose roles, then use
75 this configuration attribute in your class:
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77 has '+_traits_behave_like_roles' => (default => 1);
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79 This may or may not become the default in the future, for now you have
80 to ask for it for backward compatibility reasons.
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83 _original_class_name
84 When traits are applied to your class or instance, you get an anonymous
85 class back whose name will be not the same as your original class. So
86 "ref $self" will not be "Class", but "$self->_original_class_name" will
87 be.
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89 _traits
90 List of the (unresolved) traits applied to the instance.
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92 _resolved_traits
93 List of traits applied to the instance resolved to full package names.
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96 MooseX::Traits, MooseX::Object::Pluggable, CatalystX::Component::Traits
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99 Please report any bugs or feature requests to
100 "bug-moosex-traits-pluggable at rt.cpan.org", or through the web
101 interface at
102 <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=MooseX-Traits-Pluggable>.
103 I will be notified, and then you'll automatically be notified of
104 progress on your bug as I make changes.
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107 Rafael Kitover "<rkitover@cpan.org>"
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110 Tomas Doran, "<bobtfish@bobtfish.net>" Fitz Elliott,
111 "<fitz.elliott@gmail.com>" Andreas Marienborg,
112 "<andreas.marienborg@gmail.com>" Alexander Hartmaier,
113 "<abraxxa@cpan.org>"
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116 Copyright (c) 2014 by the aforementioned "AUTHOR" and "CONTRIBUTORS".
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118 This library is free software; you can redistribute it and/or modify it
119 under the same terms as Perl itself.
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123perl v5.30.0 2019-07-26 MooseX::Traits::Pluggable(3)