X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FMeta%2FRole%2FComposite.pm;h=e2900acde9c6b5797139a65555cef7705004e476;hb=66e3df7a8d3d839b53f6fc3af8f4bad6fc27fefe;hp=f1ee4e5a5daa53ee6b5441f75f3f541bccd72471;hpb=17ae5974bc8594c7d3deb46eb7db0b383fb80a95;p=gitmo%2FMouse.git diff --git a/lib/Mouse/Meta/Role/Composite.pm b/lib/Mouse/Meta/Role/Composite.pm index f1ee4e5..e2900ac 100644 --- a/lib/Mouse/Meta/Role/Composite.pm +++ b/lib/Mouse/Meta/Role/Composite.pm @@ -1,9 +1,29 @@ package Mouse::Meta::Role::Composite; use Mouse::Util; # enables strict and warnings use Mouse::Meta::Role; +use Mouse::Meta::Role::Application; our @ISA = qw(Mouse::Meta::Role); -sub get_method_list{ +# FIXME: Mouse::Meta::Role::Composite does things in different way from Moose's +# Moose: creates a new class for the consumer, and applies roles to it. +# Mouse: creates a coposite role and apply roles to the role, +# and then applies it to the consumer. + +sub new { + my $class = shift; + my $args = $class->Mouse::Object::BUILDARGS(@_); + my $roles = delete $args->{roles}; + my $self = $class->create_anon_role(%{$args}); + foreach my $role_spec(@{$roles}) { + my($role, $args) = ref($role_spec) eq 'ARRAY' + ? @{$role_spec} + : ($role_spec, {}); + $role->apply($self, %{$args}); + } + return $self; +} + +sub get_method_list { my($self) = @_; return keys %{ $self->{methods} }; } @@ -38,20 +58,20 @@ sub get_method_body { sub has_method { # my($self, $method_name) = @_; - return 0; # to fool _apply_methods() in combine() + return 0; # to fool apply_methods() in combine() } -sub has_attribute{ +sub has_attribute { # my($self, $method_name) = @_; - return 0; # to fool _appply_attributes() in combine() + return 0; # to fool appply_attributes() in combine() } -sub has_override_method_modifier{ +sub has_override_method_modifier { # my($self, $method_name) = @_; - return 0; # to fool _apply_modifiers() in combine() + return 0; # to fool apply_modifiers() in combine() } -sub add_attribute{ +sub add_attribute { my $self = shift; my $attr_name = shift; my $spec = (@_ == 1 ? $_[0] : {@_}); @@ -65,7 +85,7 @@ sub add_attribute{ return; } -sub add_override_method_modifier{ +sub add_override_method_modifier { my($self, $method_name, $code) = @_; my $existing = $self->{override_method_modifiers}{$method_name}; @@ -78,44 +98,55 @@ sub add_override_method_modifier{ return; } -# components of apply() +sub apply { + my $self = shift; + my $consumer = shift; + + Mouse::Meta::Role::Application::RoleSummation->new(@_)->apply($self, $consumer); + return; +} + +package Mouse::Meta::Role::Application::RoleSummation; +our @ISA = qw(Mouse::Meta::Role::Application); -sub _apply_methods{ - my($self, $consumer, $args) = @_; +sub apply_methods { + my($self, $role, $consumer, @extra) = @_; - if(exists $self->{conflicting_methods}){ + if(exists $role->{conflicting_methods}){ my $consumer_class_name = $consumer->name; - my @conflicting = grep{ !$consumer_class_name->can($_) } keys %{ $self->{conflicting_methods} }; + my @conflicting = grep{ !$consumer_class_name->can($_) } + keys %{ $role->{conflicting_methods} }; + + if(@conflicting) { + my $method_name_conflict = (@conflicting == 1 + ? 'a method name conflict' + : 'method name conflicts'); - if(@conflicting == 1){ - my $method_name = $conflicting[0]; - my $roles = Mouse::Util::quoted_english_list(map{ $_->name } @{ $self->{composed_roles_by_method}{$method_name} }); - $self->throw_error( - sprintf q{Due to a method name conflict in roles %s, the method '%s' must be implemented or excluded by '%s'}, - $roles, $method_name, $consumer_class_name - ); - } - elsif(@conflicting > 1){ my %seen; my $roles = Mouse::Util::quoted_english_list( grep{ !$seen{$_}++ } # uniq map { $_->name } - map { @{$_} } @{ $self->{composed_roles_by_method} }{@conflicting} + map { @{$_} } + @{ $role->{composed_roles_by_method} }{@conflicting} ); - $self->throw_error( - sprintf q{Due to method name conflicts in roles %s, the methods %s must be implemented or excluded by '%s'}, - $roles, - Mouse::Util::quoted_english_list(@conflicting), - $consumer_class_name - ); + $self->throw_error(sprintf + q{Due to %s in roles %s,} + . q{ the method%s %s must be implemented or excluded by '%s'}, + $method_name_conflict, + $roles, + (@conflicting > 1 ? 's' : ''), + Mouse::Util::quoted_english_list(@conflicting), + $consumer_class_name); } } - $self->SUPER::_apply_methods($consumer, $args); + $self->SUPER::apply_methods($role, $consumer, @extra); return; } + +package Mouse::Meta::Role::Composite; 1; __END__ @@ -125,7 +156,7 @@ Mouse::Meta::Role::Composite - An object to represent the set of roles =head1 VERSION -This document describes Mouse version 0.60 +This document describes Mouse version 0.88 =head1 SEE ALSO