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 {
sub Ref { ref($_[0]) }
sub ScalarRef {
my($value) = @_;
- return ref($value) eq 'SCALAR'
+ return ref($value) eq 'SCALAR' || ref($value) eq 'REF';
}
sub ArrayRef { ref($_[0]) eq 'ARRAY' }
sub HashRef { ref($_[0]) eq 'HASH' }
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;
sub roles { $_[0]->{roles} }
-sub linearized_isa { @{ get_linear_isa($_[0]->{package}) } }
+sub linearized_isa { @{ Mouse::Util::get_linear_isa($_[0]->{package}) } }
sub get_all_attributes {
my($self) = @_;
}
sub new_object {
- my $self = shift;
+ my $meta = shift;
my %args = (@_ == 1 ? %{$_[0]} : @_);
- my $object = bless {}, $self->name;
+ my $object = bless {}, $meta->name;
+
+ $meta->_initialize_object($object, \%args);
+ # BUILDALL
+ if( $object->can('BUILD') ) {
+ for my $class (reverse $meta->linearized_isa) {
+ my $build = Mouse::Util::get_code_ref($class, 'BUILD')
+ || next;
- $self->_initialize_object($object, \%args);
+ $object->$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, $is_cloning) = @_;
my @triggers_queue;
+ my $used = 0;
+
foreach my $attribute ($self->get_all_attributes) {
my $init_arg = $attribute->init_arg;
my $slot = $attribute->name;
if ($attribute->has_trigger) {
push @triggers_queue, [ $attribute->trigger, $object->{$slot} ];
}
+ $used++;
}
else { # no init arg
if ($attribute->has_default || $attribute->has_builder) {
}
}
+ if($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};
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;
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;
sub should_coerce { $_[0]->{coerce} }
sub documentation { $_[0]->{documentation} }
+sub insertion_order { $_[0]->{insertion_order} }
# predicates
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} }
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 {
=head1 VERSION
-This document describes Mouse version 0.55
+This document describes Mouse version 0.71
=head1 SEE ALSO