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1 | package Moose::Meta::Method::Overriden; |
2 | |
3 | use strict; |
4 | use warnings; |
5 | |
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6 | our $VERSION = '0.01'; |
7 | our $AUTHORITY = 'cpan:STEVAN'; |
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8 | |
9 | use base 'Moose::Meta::Method'; |
10 | |
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11 | use Sub::Name; |
12 | |
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13 | use Carp qw(confess); |
14 | |
15 | sub new { |
16 | my ( $class, %args ) = @_; |
17 | |
18 | # the package can be overridden by roles |
19 | # it is really more like body's compilation stash |
20 | # this is where we need to override the definition of super() so that the |
21 | # body of the code can call the right overridden version |
22 | my $_super_package = $args{package} || $args{class}->name; |
23 | |
24 | my $name = $args{name}; |
25 | |
26 | my $super = $args{class}->find_next_method_by_name($name); |
27 | |
28 | (defined $super) |
29 | || confess "You cannot override '$name' because it has no super method"; |
30 | |
31 | my $super_body = $super->body; |
32 | |
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33 | my $method = $args{method}; |
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34 | |
35 | my $body = sub { |
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36 | local @Moose::SUPER_ARGS = @_; |
37 | local $Moose::SUPER_BODY = $super_body; |
38 | return $method->(@_); |
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39 | }; |
40 | |
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41 | # FIXME do we need this make sure this works for next::method? |
42 | # subname "${_super_package}::${name}", $method; |
43 | |
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44 | # FIXME store additional attrs |
45 | $class->wrap($body); |
46 | } |
47 | |
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48 | 1; |
49 | |
50 | __END__ |
51 | |
52 | =pod |
53 | |
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54 | =head1 NAME |
55 | |
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56 | Moose::Meta::Method::Overriden - A Moose Method metaclass for overriden methods |
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57 | |
58 | =head1 DESCRIPTION |
59 | |
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60 | This class implements method overriding logic for the L<Moose> C<override> keyword. |
61 | |
62 | This involves setting up C<super> for the overriding body, and dispatching to |
63 | the correct parent method upon its invocation. |
64 | |
65 | =head1 METHODS |
66 | |
67 | =over 4 |
68 | |
69 | =item B<new> |
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70 | |
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71 | =back |
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72 | |
73 | =head1 BUGS |
74 | |
75 | All complex software has bugs lurking in it, and this module is no |
76 | exception. If you find a bug please either email me, or add the bug |
77 | to cpan-RT. |
78 | |
79 | =head1 AUTHOR |
80 | |
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81 | Yuval Kogman E<lt>nothingmuch@cpan.orgE<gt> |
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82 | |
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83 | =head1 COPYRIGHT AND LICENSE |
84 | |
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85 | Copyright 2006-2008 by Infinity Interactive, Inc. |
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86 | |
87 | L<http://www.iinteractive.com> |
88 | |
89 | This library is free software; you can redistribute it and/or modify |
90 | it under the same terms as Perl itself. |
91 | |
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92 | =cut |