X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FObject.pm;h=7cc315aeb730513ee0431b00a739902c68cdfe82;hb=af04626de226ce78ec19d583e86fce4c1df2267d;hp=2a5a63934f9880933b88ae5cff012dfb1fe1bcc3;hpb=5aa30cedaeea188c11688187a689d70f4b7698d2;p=gitmo%2FMouse.git diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm index 2a5a639..7cc315a 100644 --- a/lib/Mouse/Object.pm +++ b/lib/Mouse/Object.pm @@ -1,79 +1,53 @@ -#!/usr/bin/env perl package Mouse::Object; -use strict; -use warnings; -use MRO::Compat; +use Mouse::Util qw(does dump); # enables strict and warnings -use Scalar::Util 'blessed'; -use Carp 'confess'; +sub new; -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})) { - unless ($attribute->{lazy}) { - my $default = ref($attribute->{default}) eq 'CODE' - ? $attribute->{default}->() - : $attribute->{default}; +sub DESTROY { + my $self = shift; - $attribute->verify_type_constraint($default) - if $attribute->has_type_constraint; + return unless $self->can('DEMOLISH'); # short circuit - $instance->{$key} = $default; + local $?; - Scalar::Util::weaken($instance->{$key}) - if $attribute->{weak_ref}; - } - } - else { - if ($attribute->{required}) { - confess "Attribute '$attribute->{name}' is required"; - } - } - } + my $e = do{ + local $@; + eval{ - if (exists($args{$key})) { - $attribute->verify_type_constraint($args{$key}) - if $attribute->has_type_constraint; + # DEMOLISHALL - $instance->{$key} = $args{$key}; + # 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 ;) - Scalar::Util::weaken($instance->{$key}) - if $attribute->{weak_ref}; + foreach my $class (@{ Mouse::Util::get_linear_isa(ref $self) }) { + my $demolish = Mouse::Util::get_code_ref($class, 'DEMOLISH') + || next; - if ($attribute->{trigger}) { - $attribute->{trigger}->($instance, $args{$key}, $attribute); + $self->$demolish(); } - } - } + }; + $@; + }; - $instance->BUILDALL(\%args); - - return $instance; + no warnings 'misc'; + die $e if $e; # rethrow } -sub DESTROY { shift->DEMOLISHALL } - sub BUILDALL { my $self = shift; # short circuit return unless $self->can('BUILD'); - no strict 'refs'; + for my $class (reverse $self->meta->linearized_isa) { + my $build = Mouse::Util::get_code_ref($class, 'BUILD') + || next; - for my $class ($self->meta->linearized_isa) { - my $code = *{ $class . '::BUILD' }{CODE} - or next; - $code->($self, @_); + $self->$build(@_); } + return; } sub DEMOLISHALL { @@ -82,13 +56,18 @@ 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 ;) + + foreach my $class (@{ Mouse::Util::get_linear_isa(ref $self) }) { + my $demolish = Mouse::Util::get_code_ref($class, 'DEMOLISH') + || next; - for my $class ($self->meta->linearized_isa) { - my $code = *{ $class . '::DEMOLISH' }{CODE} - or next; - $code->($self, @_); + $self->$demolish(); } + return; } 1; @@ -97,33 +76,65 @@ __END__ =head1 NAME -Mouse::Object - we don't need to steenkin' constructor +Mouse::Object - The base object for Mouse classes + +=head1 VERSION + +This document describes Mouse version 0.40_05 =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