X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=lib%2FMouse%2FPurePerl.pm;h=36ef0cef0250beb2b234195b7a44dbe7e5023666;hb=823419c540f9e77090f31f11e04b14477c0372c4;hp=fa6a1d74f649c66b709d5c1a643ebafdebbf9e6b;hpb=0ffc4183de68b15deeec5d662d9cc1d125dabf26;p=gitmo%2FMouse.git diff --git a/lib/Mouse/PurePerl.pm b/lib/Mouse/PurePerl.pm index fa6a1d7..36ef0ce 100644 --- a/lib/Mouse/PurePerl.pm +++ b/lib/Mouse/PurePerl.pm @@ -1,16 +1,14 @@ package Mouse::PurePerl; - -require Mouse::Util; - +# The pure Perl backend for Mouse package Mouse::Util; - use strict; use warnings; - -use warnings FATAL => 'redefine'; # to avoid to load Mouse::PurePerl +use warnings FATAL => 'redefine'; # to avoid to load Mouse::PurePerl twice use B (); +require Mouse::Util; + # taken from Class/MOP.pm sub is_valid_class_name { @@ -101,8 +99,7 @@ sub generate_isa_predicate_for { my $predicate = sub{ Scalar::Util::blessed($_[0]) && $_[0]->isa($for_class) }; if(defined $name){ - no strict 'refs'; - *{ caller() . '::' . $name } = $predicate; + Mouse::Util::install_subroutines(scalar caller, $name => $predicate); return; } @@ -128,8 +125,7 @@ sub generate_can_predicate_for { }; if(defined $name){ - no strict 'refs'; - *{ caller() . '::' . $name } = $predicate; + Mouse::Util::install_subroutines(scalar caller, $name => $predicate); return; } @@ -147,8 +143,11 @@ sub Bool { $_[0] ? $_[0] eq '1' : 1 } sub Undef { !defined($_[0]) } sub Defined { defined($_[0]) } sub Value { defined($_[0]) && !ref($_[0]) } -sub Num { !ref($_[0]) && looks_like_number($_[0]) } -sub Int { defined($_[0]) && !ref($_[0]) && $_[0] =~ /^-?[0-9]+$/ } +sub Num { looks_like_number($_[0]) } +sub Int { + my($value) = @_; + looks_like_number($value) && $value =~ /\A [+-]? [0-9]+ \z/xms; +} sub Str { my($value) = @_; return defined($value) && ref(\$value) eq 'SCALAR'; @@ -206,9 +205,7 @@ sub _parameterize_Maybe_for { return sub{ return !defined($_) || $check->($_); }; -}; - - +} package Mouse::Meta::Module; @@ -239,15 +236,38 @@ sub add_method { $self->{methods}->{$name} = $code; # Moose stores meta object here. - my $pkg = $self->name; - no strict 'refs'; - no warnings 'redefine', 'once'; - *{ $pkg . '::' . $name } = $code; + Mouse::Util::install_subroutines($self->name, + $name => $code, + ); return; } +my $generate_class_accessor = sub { + my($name) = @_; + return sub { + my $self = shift; + if(@_) { + return $self->{$name} = shift; + } + + foreach my $class($self->linearized_isa) { + my $meta = Mouse::Util::get_metaclass_by_name($class) + or next; + + if(exists $meta->{$name}) { + return $meta->{$name}; + } + } + return undef; + }; +}; + + package Mouse::Meta::Class; +use Mouse::Meta::Method::Constructor; +use Mouse::Meta::Method::Destructor; + sub method_metaclass { $_[0]->{method_metaclass} || 'Mouse::Meta::Method' } sub attribute_metaclass { $_[0]->{attribute_metaclass} || 'Mouse::Meta::Attribute' } @@ -269,20 +289,45 @@ sub get_all_attributes { } sub new_object { - my $self = shift; + my $meta = shift; my %args = (@_ == 1 ? %{$_[0]} : @_); - my $object = bless {}, $self->name; + my $object = bless {}, $meta->name; - $self->_initialize_object($object, \%args); + $meta->_initialize_object($object, \%args); + # BUILDALL + if( $object->can('BUILD') ) { + for my $class (reverse $meta->linearized_isa) { + my $build = Mouse::Util::get_code_ref($class, 'BUILD') + || next; + + $object->$build(\%args); + } + } return $object; } +sub clone_object { + my $class = shift; + my $object = shift; + my $args = $object->Mouse::Object::BUILDARGS(@_); + + (blessed($object) && $object->isa($class->name)) + || $class->throw_error("You must pass an instance of the metaclass (" . $class->name . "), not ($object)"); + + my $cloned = bless { %$object }, ref $object; + $class->_initialize_object($cloned, $args, 1); + + return $cloned; +} + sub _initialize_object{ - my($self, $object, $args, $ignore_triggers) = @_; + my($self, $object, $args, $is_cloning) = @_; my @triggers_queue; + my $used = 0; + foreach my $attribute ($self->get_all_attributes) { my $init_arg = $attribute->init_arg; my $slot = $attribute->name; @@ -296,10 +341,11 @@ sub _initialize_object{ if ($attribute->has_trigger) { push @triggers_queue, [ $attribute->trigger, $object->{$slot} ]; } + $used++; } else { # no init arg if ($attribute->has_default || $attribute->has_builder) { - if (!$attribute->is_lazy) { + if (!$attribute->is_lazy && !exists $object->{$slot}) { my $default = $attribute->default; my $builder = $attribute->builder; my $value = $builder ? $object->$builder() @@ -312,13 +358,17 @@ sub _initialize_object{ if ref($object->{$slot}) && $attribute->is_weak_ref; } } - elsif($attribute->is_required) { + elsif(!$is_cloning && $attribute->is_required) { $self->throw_error("Attribute (".$attribute->name.") is required"); } } } - if(!$ignore_triggers){ + if($used < keys %{$args} && $self->strict_constructor) { + $self->_report_unknown_args([ $self->get_all_attributes ], $args); + } + + if(@triggers_queue){ foreach my $trigger_and_value(@triggers_queue){ my($trigger, $value) = @{$trigger_and_value}; $trigger->($object, $value); @@ -334,7 +384,32 @@ sub _initialize_object{ sub is_immutable { $_[0]->{is_immutable} } -sub __strict_constructor{ $_[0]->{strict_constructor} } +sub strict_constructor; +*strict_constructor = $generate_class_accessor->('strict_constructor'); + +sub _report_unknown_args { + my($metaclass, $attrs, $args) = @_; + + my @unknowns; + my %init_args; + foreach my $attr(@{$attrs}){ + my $init_arg = $attr->init_arg; + if(defined $init_arg){ + $init_args{$init_arg}++; + } + } + + while(my $key = each %{$args}){ + if(!exists $init_args{$key}){ + push @unknowns, $key; + } + } + + $metaclass->throw_error( sprintf + "Unknown attribute passed to the constructor of %s: %s", + $metaclass->name, Mouse::Util::english_list(@unknowns), + ); +} package Mouse::Meta::Role; @@ -346,6 +421,44 @@ sub is_anon_role{ sub get_roles { $_[0]->{roles} } +sub add_before_method_modifier { + my ($self, $method_name, $method) = @_; + + push @{ $self->{before_method_modifiers}{$method_name} ||= [] }, $method; + return; +} +sub add_around_method_modifier { + my ($self, $method_name, $method) = @_; + + push @{ $self->{around_method_modifiers}{$method_name} ||= [] }, $method; + return; +} +sub add_after_method_modifier { + my ($self, $method_name, $method) = @_; + + push @{ $self->{after_method_modifiers}{$method_name} ||= [] }, $method; + return; +} + +sub get_before_method_modifiers { + my ($self, $method_name) = @_; + return @{ $self->{before_method_modifiers}{$method_name} ||= [] } +} +sub get_around_method_modifiers { + my ($self, $method_name) = @_; + return @{ $self->{around_method_modifiers}{$method_name} ||= [] } +} +sub get_after_method_modifiers { + my ($self, $method_name) = @_; + return @{ $self->{after_method_modifiers}{$method_name} ||= [] } +} + +sub add_metaclass_accessor { # for meta roles (a.k.a. traits) + my($meta, $name) = @_; + $meta->add_method($name => $generate_class_accessor->($name)); + return; +} + package Mouse::Meta::Attribute; require Mouse::Meta::Method::Accessor; @@ -379,6 +492,7 @@ sub should_auto_deref { $_[0]->{auto_deref} } sub should_coerce { $_[0]->{coerce} } sub documentation { $_[0]->{documentation} } +sub insertion_order { $_[0]->{insertion_order} } # predicates @@ -526,18 +640,23 @@ sub _process_options{ package Mouse::Meta::TypeConstraint; +use overload + '""' => '_as_string', + '0+' => '_identity', + '|' => '_unite', + + fallback => 1; + sub name { $_[0]->{name} } sub parent { $_[0]->{parent} } sub message { $_[0]->{message} } -sub type_parameter { $_[0]->{type_parameter} } -sub __is_parameterized { exists $_[0]->{type_parameter} } - +sub type_parameter { $_[0]->{type_parameter} } sub _compiled_type_constraint{ $_[0]->{compiled_type_constraint} } - sub _compiled_type_coercion { $_[0]->{_compiled_type_coercion} } -sub has_coercion{ exists $_[0]->{_compiled_type_coercion} } +sub __is_parameterized { exists $_[0]->{type_parameter} } +sub has_coercion { exists $_[0]->{_compiled_type_coercion} } sub compile_type_constraint{ @@ -586,8 +705,13 @@ sub compile_type_constraint{ return; } -package Mouse::Object; +sub check { + my $self = shift; + return $self->_compiled_type_constraint->(@_); +} + +package Mouse::Object; sub BUILDARGS { my $class = shift; @@ -611,19 +735,7 @@ sub new { my $args = $class->BUILDARGS(@_); my $meta = Mouse::Meta::Class->initialize($class); - my $self = $meta->new_object($args); - - # BUILDALL - if( $self->can('BUILD') ) { - for my $class (reverse $meta->linearized_isa) { - my $build = Mouse::Util::get_code_ref($class, 'BUILD') - || next; - - $self->$build($args); - } - } - - return $self; + return $meta->new_object($args); } sub DESTROY { @@ -636,7 +748,6 @@ sub DESTROY { my $e = do{ local $@; eval{ - # DEMOLISHALL # We cannot count on being able to retrieve a previously made @@ -685,7 +796,7 @@ Mouse::PurePerl - A Mouse guts in pure Perl =head1 VERSION -This document describes Mouse version 0.50_03 +This document describes Mouse version 0.70 =head1 SEE ALSO