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=6a49a07cf868e830f80127c45f78df586d47ad86;hb=31c5194bc6a176cec4de515163d27f174eba5c9b;hpb=07d18a6b15d6d937a78ecd2dd24f5375f0096766 diff --git a/lib/Mouse/Object.pm b/lib/Mouse/Object.pm index 6a49a07..f1cd27e 100644 --- a/lib/Mouse/Object.pm +++ b/lib/Mouse/Object.pm @@ -2,67 +2,17 @@ package Mouse::Object; use strict; use warnings; -use Scalar::Util qw/weaken/; -use Carp 'confess'; +use Mouse::Util qw(does dump); 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 = $attribute->name; - - if (defined($from) && exists($args->{$from})) { - $args->{$from} = $attribute->coerce_constraint($args->{$from}) - if $attribute->should_coerce; - $attribute->verify_type_constraint($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' - ? $default->($instance) - : $default; - - $value = $attribute->coerce_constraint($value) - if $attribute->should_coerce; - $attribute->verify_type_constraint($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; } @@ -70,20 +20,21 @@ 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 {@_}; } } -sub DESTROY { shift->DEMOLISHALL } +sub DESTROY { + my $self = shift; + + $self->DEMOLISHALL(); +} sub BUILDALL { my $self = shift; @@ -92,12 +43,12 @@ sub BUILDALL { return unless $self->can('BUILD'); for my $class (reverse $self->meta->linearized_isa) { - no strict 'refs'; - no warnings 'once'; - my $code = *{ $class . '::BUILD' }{CODE} + my $build = do{ no strict 'refs'; *{ $class . '::BUILD' }{CODE} } or next; - $code->($self, @_); + + $self->$build(@_); } + return; } sub DEMOLISHALL { @@ -106,13 +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; @@ -125,34 +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 Mouse::Object. This is obviously intended for subclasses. +Instantiates a new C. This is obviously intended for subclasses. -=head2 BUILDALL \%args +=head2 C<< BUILDARGS (Arguments) -> HashRef >> -Calls L on each class in the class hierarchy. This is called at the -end of L. +Lets you override the arguments that C takes. Return a hashref of +parameters. -=head2 BUILD \%args +=head2 C<< BUILDALL (\%args) >> -You may put any business logic initialization in BUILD methods. You don't -need to redispatch or return any specific value. +Calls C on each class in the class hierarchy. This is called at the +end of C. -=head2 BUILDARGS +=head2 C<< BUILD (\%args) >> -Lets you override the arguments that C takes. Return a hashref of -parameters. +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