X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FObject.pm;h=f1cd27e4237231236fbc17d5b385d9a301d24265;hp=1dd548152e783e0d11b01ad4faf63e9e7e7e3bb2;hb=31c5194bc6a176cec4de515163d27f174eba5c9b;hpb=1be61030b949daee746b57e7135202c27eeb1c2f diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm index 1dd5481..f1cd27e 100644 --- a/lib/Mouse/Object.pm +++ b/lib/Mouse/Object.pm @@ -1,68 +1,40 @@ -#!/usr/bin/env perl package Mouse::Object; use strict; use warnings; -use MRO::Compat; -use Scalar::Util 'blessed'; -use Carp 'confess'; +use Mouse::Util qw(does dump); sub new { my $class = shift; - my %args = @_; - my $instance = bless {}, $class; - - for my $attribute ($class->meta->attributes) { - my $key = $attribute->init_arg; - my $default; - - if (!exists($args{$key})) { - if (exists($attribute->{default}) || exists($attribute->{builder})) { - unless ($attribute->{lazy}) { - my $builder = $attribute->{builder}; - my $default = exists($attribute->{builder}) - ? $instance->$builder - : ref($attribute->{default}) eq 'CODE' - ? $attribute->{default}->() - : $attribute->{default}; - - $attribute->verify_type_constraint($default) - if $attribute->has_type_constraint; - - $instance->{$key} = $default; - - Scalar::Util::weaken($instance->{$key}) - if $attribute->{weak_ref}; - } - } - else { - if ($attribute->{required}) { - confess "Attribute '$attribute->{name}' is required"; - } - } - } - - if (exists($args{$key})) { - $attribute->verify_type_constraint($args{$key}) - if $attribute->has_type_constraint; - - $instance->{$key} = $args{$key}; - - Scalar::Util::weaken($instance->{$key}) - if $attribute->{weak_ref}; - - if ($attribute->{trigger}) { - $attribute->{trigger}->($instance, $args{$key}, $attribute); - } - } - } - $instance->BUILDALL(\%args); + $class->throw_error('Cannot call new() on an instance') if ref $class; + + my $args = $class->BUILDARGS(@_); + my $instance = Mouse::Meta::Class->initialize($class)->new_object($args); + $instance->BUILDALL($args); return $instance; } -sub DESTROY { shift->DEMOLISHALL } +sub BUILDARGS { + my $class = shift; + + if (scalar @_ == 1) { + (ref($_[0]) eq 'HASH') + || $class->meta->throw_error("Single parameters to new() must be a HASH ref"); + + return {%{$_[0]}}; + } + else { + return {@_}; + } +} + +sub DESTROY { + my $self = shift; + + $self->DEMOLISHALL(); +} sub BUILDALL { my $self = shift; @@ -70,13 +42,13 @@ sub BUILDALL { # short circuit return unless $self->can('BUILD'); - no strict 'refs'; - - for my $class ($self->meta->linearized_isa) { - my $code = *{ $class . '::BUILD' }{CODE} + for my $class (reverse $self->meta->linearized_isa) { + my $build = do{ no strict 'refs'; *{ $class . '::BUILD' }{CODE} } or next; - $code->($self, @_); + + $self->$build(@_); } + return; } sub DEMOLISHALL { @@ -85,13 +57,18 @@ sub DEMOLISHALL { # short circuit return unless $self->can('DEMOLISH'); - no strict 'refs'; + # We cannot count on being able to retrieve a previously made + # metaclass, _or_ being able to make a new one during global + # destruction. However, we should still be able to use mro at + # that time (at least tests suggest so ;) - for my $class ($self->meta->linearized_isa) { - my $code = *{ $class . '::DEMOLISH' }{CODE} + foreach my $class (@{ Mouse::Util::get_linear_isa(ref $self) }) { + my $demolish = do{ no strict 'refs'; *{ $class . '::DEMOLISH'}{CODE} } or next; - $code->($self, @_); + + $self->$demolish(); } + return; } 1; @@ -104,29 +81,57 @@ Mouse::Object - we don't need to steenkin' constructor =head1 METHODS -=head2 new arguments -> object +=head2 C<< new (Arguments) -> Object >> + +Instantiates a new C. This is obviously intended for subclasses. -Instantiates a new Mouse::Object. This is obviously intended for subclasses. +=head2 C<< BUILDARGS (Arguments) -> HashRef >> -=head2 BUILDALL \%args +Lets you override the arguments that C takes. Return a hashref of +parameters. -Calls L on each class in the class hierarchy. This is called at the -end of L. +=head2 C<< BUILDALL (\%args) >> -=head2 BUILD \%args +Calls C on each class in the class hierarchy. This is called at the +end of C. + +=head2 C<< BUILD (\%args) >> You may put any business logic initialization in BUILD methods. You don't need to redispatch or return any specific value. -=head2 DEMOLISHALL +=head2 C<< DEMOLISHALL >> -Calls L on each class in the class hierarchy. This is called at -L time. +Calls C on each class in the class hierarchy. This is called at +C time. -=head2 DEMOLISH +=head2 C<< DEMOLISH >> You may put any business logic deinitialization in DEMOLISH methods. You don't need to redispatch or return any specific value. + +=head2 C<< does ($role_name) -> Bool >> + +This will check if the invocant's class B a given C<$role_name>. +This is similar to "isa" for object, but it checks the roles instead. + +=head2 C< Str >> + +From the Moose POD: + + C'mon, how many times have you written the following code while debugging: + + use Data::Dumper; + warn Dumper $obj; + + It can get seriously annoying, so why not just use this. + +The implementation was lifted directly from Moose::Object. + +=head1 SEE ALSO + +L + =cut