X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FRole.pm;h=511a4e56cdb87617cdf9f0db6a5f03b364edf3b6;hp=3392f3e3e68cc5e96ca545491c7c22f297d8fd83;hb=013ee5f0c0ce5afa1fea9d45bd14bd8f8bfd67f4;hpb=26482d3ff20c9e131b14e5fbf949b0eeadcea7c6

diff --git a/lib/Mouse/Role.pm b/lib/Mouse/Role.pm
index 3392f3e..511a4e5 100644
--- a/lib/Mouse/Role.pm
+++ b/lib/Mouse/Role.pm
@@ -1,51 +1,218 @@
-#!/usr/bin/env perl
 package Mouse::Role;
-use strict;
-use warnings;
-
-use Sub::Exporter;
-use Carp 'confess';
-
-do {
-    my $CALLER;
-
-    my %exports = (
-        extends => sub {
-            return sub {
-                confess "Role does not currently support 'extends'";
-            }
-        },
-        before => sub {
-            return sub { }
-        },
-        after => sub {
-            return sub { }
-        },
-        around => sub {
-            return sub { }
-        },
-        has => sub {
-            return sub { }
-        },
-    );
-
-    my $exporter = Sub::Exporter::build_exporter({
-        exports => \%exports,
-        groups  => { default => [':all'] },
-    });
+use Mouse::Exporter; # enables strict and warnings
+
+our $VERSION = '0.50';
+
+use Carp         qw(confess);
+use Scalar::Util qw(blessed);
+
+use Mouse::Util  qw(not_supported);
+use Mouse::Meta::Role;
+use Mouse ();
+
+Mouse::Exporter->setup_import_methods(
+    as_is => [qw(
+        extends with
+        has
+        before after around
+        override super
+        augment  inner
+
+        requires excludes
+    ),
+        \&Scalar::Util::blessed,
+        \&Carp::confess,
+    ],
+);
+
+
+sub extends  {
+    Carp::croak "Roles do not support 'extends'";
+}
+
+sub with     {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    Mouse::Util::apply_all_roles($meta->name, @_);
+    return;
+}
 
-    sub import {
-        $CALLER = caller;
+sub has {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    my $name = shift;
 
-        strict->import;
-        warnings->import;
+    $meta->throw_error(q{Usage: has 'name' => ( key => value, ... )})
+        if @_ % 2; # odd number of arguments
 
-        goto $exporter;
+    if(ref $name){ # has [qw(foo bar)] => (...)
+        for (@{$name}){
+            $meta->add_attribute($_ => @_);
+        }
     }
+    else{ # has foo => (...)
+        $meta->add_attribute($name => @_);
+    }
+    return;
+}
+
+sub before {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    my $code = pop;
+    for my $name($meta->_collect_methods(@_)) {
+        $meta->add_before_method_modifier($name => $code);
+    }
+    return;
+}
+
+sub after {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    my $code = pop;
+    for my $name($meta->_collect_methods(@_)) {
+        $meta->add_after_method_modifier($name => $code);
+    }
+    return;
+}
 
-    sub unimport {
+sub around {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    my $code = pop;
+    for my $name($meta->_collect_methods(@_)) {
+        $meta->add_around_method_modifier($name => $code);
     }
-};
+    return;
+}
+
+
+sub super {
+    return if !defined $Mouse::SUPER_BODY;
+    $Mouse::SUPER_BODY->(@Mouse::SUPER_ARGS);
+}
+
+sub override {
+    # my($name, $code) = @_;
+    Mouse::Meta::Role->initialize(scalar caller)->add_override_method_modifier(@_);
+    return;
+}
+
+# We keep the same errors messages as Moose::Role emits, here.
+sub inner {
+    Carp::croak "Roles cannot support 'inner'";
+}
+
+sub augment {
+    Carp::croak "Roles cannot support 'augment'";
+}
+
+sub requires {
+    my $meta = Mouse::Meta::Role->initialize(scalar caller);
+    $meta->throw_error("Must specify at least one method") unless @_;
+    $meta->add_required_methods(@_);
+    return;
+}
+
+sub excludes {
+    not_supported;
+}
+
+sub init_meta{
+    shift;
+    my %args = @_;
+
+    my $class = $args{for_class}
+        or Carp::confess("Cannot call init_meta without specifying a for_class");
+
+    my $metaclass  = $args{metaclass}  || 'Mouse::Meta::Role';
+
+    my $meta = $metaclass->initialize($class);
+
+    $meta->add_method(meta => sub{
+        $metaclass->initialize(ref($_[0]) || $_[0]);
+    });
+
+    # make a role type for each Mouse role
+    Mouse::Util::TypeConstraints::role_type($class)
+        unless Mouse::Util::TypeConstraints::find_type_constraint($class);
+
+    return $meta;
+}
 
 1;
 
+__END__
+
+=head1 NAME
+
+Mouse::Role - The Mouse Role
+
+=head1 VERSION
+
+This document describes Mouse version 0.50
+
+=head1 SYNOPSIS
+
+    package MyRole;
+    use Mouse::Role;
+
+=head1 KEYWORDS
+
+=head2 C<< meta -> Mouse::Meta::Role >>
+
+Returns this role's metaclass instance.
+
+=head2 C<< before (method|methods) -> CodeRef >>
+
+Sets up a B<before> method modifier. See L<Moose/before>.
+
+=head2 C<< after (method|methods) => CodeRef >>
+
+Sets up an B<after> method modifier. See L<Moose/after>.
+
+=head2 C<< around (method|methods) => CodeRef >>
+
+Sets up an B<around> method modifier. See L<Moose/around>.
+
+=head2 C<super>
+
+Sets up the B<super> keyword. See L<Moose/super>.
+
+=head2  C<< override method => CodeRef >>
+
+Sets up an B<override> method modifier. See L<Moose/Role/override>.
+
+=head2 C<inner>
+
+This is not supported in roles and emits an error. See L<Moose/Role>.
+
+=head2 C<< augment method => CodeRef >>
+
+This is not supported in roles and emits an error. See L<Moose/Role>.
+
+=head2 C<< has (name|names) => parameters >>
+
+Sets up an attribute (or if passed an arrayref of names, multiple attributes) to
+this role. See L<Mouse/has>.
+
+=head2 C<< confess(error) -> BOOM >>
+
+L<Carp/confess> for your convenience.
+
+=head2 C<< blessed(value) -> ClassName | undef >>
+
+L<Scalar::Util/blessed> for your convenience.
+
+=head1 MISC
+
+=head2 import
+
+Importing Mouse::Role will give you sugar.
+
+=head2 unimport
+
+Please unimport (C<< no Mouse::Role >>) so that if someone calls one of the
+keywords (such as L</has>) it will break loudly instead breaking subtly.
+
+=head1 SEE ALSO
+
+L<Moose::Role>
+
+=cut
+