X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=gitmo%2FMouse.git;a=blobdiff_plain;f=lib%2FMouse%2FObject.pm;h=8aa22b571fd4529ba032b5fc2e49b4d3378a77d2;hp=623fa64101c2a42b763d4317e45fd200ad30875a;hb=8e64d0fa5da64639074f77d3da9b2f7aa20cce93;hpb=9b28c1d7f680305bfe0afda57775ec00eaf6219c diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm index 623fa64..8aa22b5 100644 --- a/lib/Mouse/Object.pm +++ b/lib/Mouse/Object.pm @@ -1,66 +1,18 @@ -#!/usr/bin/env perl package Mouse::Object; use strict; use warnings; -use Scalar::Util qw/weaken/; -use Carp 'confess'; +use Mouse::Util; sub new { my $class = shift; - my $args = $class->BUILDARGS(@_); + $class->throw_error('Cannot call new() on an instance') if ref $class; - my $instance = bless {}, $class; - - for my $attribute ($class->meta->compute_all_applicable_attributes) { - my $from = $attribute->init_arg; - my $key = $attribute->name; - my $default; - - if (defined($from) && exists($args->{$from})) { - $attribute->verify_type_constraint($args->{$from}) - if $attribute->has_type_constraint; - - $instance->{$key} = $args->{$from}; - - weaken($instance->{$key}) - if ref($instance->{$key}) && $attribute->is_weak_ref; - - if ($attribute->has_trigger) { - $attribute->trigger->($instance, $args->{$from}, $attribute); - } - } - else { - if ($attribute->has_default || $attribute->has_builder) { - unless ($attribute->is_lazy) { - my $default = $attribute->default; - my $builder = $attribute->builder; - my $value = $attribute->has_builder - ? $instance->$builder - : ref($default) eq 'CODE' - ? $default->() - : $default; - - $attribute->verify_type_constraint($value) - if $attribute->has_type_constraint; - - $instance->{$key} = $value; - - weaken($instance->{$key}) - if ref($instance->{$key}) && $attribute->is_weak_ref; - } - } - else { - if ($attribute->is_required) { - confess "Attribute (".$attribute->name.") is required"; - } - } - } - } + my $args = $class->BUILDARGS(@_); + my $instance = Mouse::Meta::Class->initialize($class)->new_object($args); $instance->BUILDALL($args); - return $instance; } @@ -68,13 +20,9 @@ sub BUILDARGS { my $class = shift; if (scalar @_ == 1) { - if (defined $_[0]) { - (ref($_[0]) eq 'HASH') - || confess "Single parameters to new() must be a HASH ref"; - return {%{$_[0]}}; - } else { - return {}; - } + (ref($_[0]) eq 'HASH') + || $class->meta->throw_error("Single parameters to new() must be a HASH ref"); + return {%{$_[0]}}; } else { return {@_}; @@ -96,6 +44,7 @@ sub BUILDALL { or next; $code->($self, @_); } + return; } sub DEMOLISHALL { @@ -104,15 +53,37 @@ 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 $demolish; } + return; } +sub dump { + my($self, $maxdepth) = @_; + + require 'Data/Dumper.pm'; # we don't want to create its namespace + my $dd = Data::Dumper->new([$self]); + $dd->Maxdepth(defined($maxdepth) ? $maxdepth : 1); + return $dd->Dump(); +} + + +sub does { + my ($self, $role_name) = @_; + (defined $role_name) + || $self->meta->throw_error("You must supply a role name to does()"); + + return $self->meta->does_role($role_name); +}; + 1; __END__ @@ -152,5 +123,26 @@ 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 +