1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
use 5.006;
use strict;
use warnings;
BEGIN { if ($] < 5.010000) { require UNIVERSAL::DOES } };
package MooX::Traits;
our $AUTHORITY = 'cpan:TOBYINK';
our $VERSION = '0.005';
use Role::Tiny;
sub _trait_namespace
{
();
}
sub with_traits
{
my $class = shift;
return $class unless @_;
require MooX::Traits::Util;
MooX::Traits::Util::new_class_with_traits($class, @_);
}
sub new_with_traits
{
my $class = shift;
my (%args, $pass_as_ref);
if (@_==1 and ref($_[0]) eq 'HASH')
{
%args = %{$_[0]};
$pass_as_ref = !!1;
}
else
{
%args = @_;
$pass_as_ref = !!0;
}
my $traits_arr = delete($args{traits}) || [];
my @traits = ref($traits_arr) ? @$traits_arr : $traits_arr;
$class->with_traits(@traits)->new( $pass_as_ref ? \%args : %args );
}
1;
__END__
=pod
=encoding utf-8
=for stopwords MooseX MouseX prepend
=head1 NAME
MooX::Traits - automatically apply roles at object creation time
=head1 SYNOPSIS
Given some roles:
package Role;
use Moo::Role;
has foo => ( is => 'ro', required => 1 );
And a class:
package Class;
use Moo;
with 'MooX::Traits';
Apply the roles to the class:
my $class = Class->with_traits('Role');
Then use your customized class:
my $object = $class->new( foo => 42 );
$object->isa('Class'); # true
$object->does('Role'); # true
$object->foo; # 42
=head1 DESCRIPTION
Was any of the SYNOPSIS unexpected? Basically, this module is the same
thing as L<MooseX::Traits> and L<MouseX::Traits>, only for L<Moo>.
I<Quelle surprise>, right?
=head2 Methods
=over
=item C<< $class->with_traits( @traits ) >>
Return a new class name with the traits applied.
=item C<< $class->new_with_traits(%args, traits => \@traits) >>
C<new_with_traits> can also take a hashref, e.g.:
my $instance = $class->new_with_traits({ traits => \@traits, foo => 'bar' });
This method exists for compatibility with the MooseX and MouseX
equivalents of this module, but generally speaking you should prefer
to use C<with_traits>.
=item C<< $class->_trait_namespace >>
This returns undef, but you can override it in your class to
automatically prepend a namespace to supplied traits.
This differs slightly from the MooseX and MouseX versions of this
module which have C<_trait_namespace> as an attribute instead of
a method.
=back
=head2 Compatibility
Although called MooX::Traits, this module actually uses L<Role::Tiny>,
so doesn't really require L<Moo>. If you use it in a non-Moo class,
you should be able to safely consume any Role::Tiny-based traits.
If you use it in a Moo class, you should also be able to consume
Moo::Role-based traits and Moose::Role-based traits.
L<Package::Variant> and L<MooseX::Role::Parameterized> roles should be
usable; just provide a hashref of arguments:
$class->with_traits( $param_role => \%args )->new( ... )
=head1 BUGS
Please report any bugs to
L<http://rt.cpan.org/Dist/Display.html?Queue=MooX-Traits>.
=head1 SEE ALSO
L<MooX::Traits::Util>.
L<Moo::Role>,
L<Role::Tiny>.
L<MooseX::Traits>,
L<MouseX::Traits>.
=head1 AUTHOR
Toby Inkster E<lt>tobyink@cpan.orgE<gt>.
=head1 COPYRIGHT AND LICENCE
This software is copyright (c) 2014 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=head1 DISCLAIMER OF WARRANTIES
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
