X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FObject.pm;h=89bd8cac9cccda0cba92355431fd8c49f60be373;hp=2a5a63934f9880933b88ae5cff012dfb1fe1bcc3;hb=53875581c2449e237cc1135b8c2cf1674a874aed;hpb=5aa30cedaeea188c11688187a689d70f4b7698d2 diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm index 2a5a639..89bd8ca 100644 --- a/lib/Mouse/Object.pm +++ b/lib/Mouse/Object.pm @@ -1,64 +1,34 @@ -#!/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})) { - unless ($attribute->{lazy}) { - my $default = ref($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 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 { shift->DEMOLISHALL } sub BUILDALL { @@ -67,13 +37,14 @@ sub BUILDALL { # short circuit return unless $self->can('BUILD'); - no strict 'refs'; - - for my $class ($self->meta->linearized_isa) { + for my $class (reverse $self->meta->linearized_isa) { + no strict 'refs'; + no warnings 'once'; my $code = *{ $class . '::BUILD' }{CODE} or next; $code->($self, @_); } + return; } sub DEMOLISHALL { @@ -82,13 +53,17 @@ 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} - or next; - $code->($self, @_); + foreach my $class (@{ Mouse::Util::get_linear_isa(ref $self) }) { + my $demolish = do{ no strict 'refs'; *{"${class}::DEMOLISH"}{CODE} }; + $self->$demolish() + if defined $demolish; } + return; } 1; @@ -115,6 +90,11 @@ end of L. You may put any business logic initialization in BUILD methods. You don't need to redispatch or return any specific value. +=head2 BUILDARGS + +Lets you override the arguments that C takes. Return a hashref of +parameters. + =head2 DEMOLISHALL Calls L on each class in the class hierarchy. This is called at @@ -125,5 +105,26 @@ L time. You may put any business logic deinitialization in DEMOLISH methods. You don't need to redispatch or return any specific value. + +=head2 does $role_name + +This will check if the invocant's class "does" a given C<$role_name>. +This is similar to "isa" for object, but it checks the roles instead. + + +=head2 B + +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. + =cut +