use strict;
use warnings;
-use Mouse::Meta::Method::Constructor;
-use Mouse::Meta::Method::Destructor;
use Scalar::Util qw/blessed weaken/;
-use Mouse::Util qw/get_linear_isa version authority identifier get_code_info/;
-use Carp 'confess';
-use base qw(Mouse::Meta::Module);
+use Mouse::Util qw/get_linear_isa not_supported/;
-do {
- my %METACLASS_CACHE;
-
- # because Mouse doesn't introspect existing classes, we're forced to
- # only pay attention to other Mouse classes
- sub _metaclass_cache {
- my $class = shift;
- my $name = shift;
- return $METACLASS_CACHE{$name};
- }
-
- sub initialize {
- my($class, $package_name, @args) = @_;
-
- ($package_name && !ref($package_name))\r
- || confess("You must pass a package name and it cannot be blessed");\r
+use Mouse::Meta::Method::Constructor;
+use Mouse::Meta::Method::Destructor;
+use Mouse::Meta::Module;
- return $METACLASS_CACHE{$package_name}
- ||= $class->_construct_class_instance(package => $package_name, @args);
- }
+use base qw(Mouse::Meta::Module);
- sub class_of{
- my($class_or_instance) = @_;
- return undef unless defined $class_or_instance;
- return $METACLASS_CACHE{ blessed($class_or_instance) || $class_or_instance };
- }
+sub method_metaclass(){ 'Mouse::Meta::Method' } # required for get_method()
- # Means of accessing all the metaclasses that have
- # been initialized thus far
- sub get_all_metaclasses { %METACLASS_CACHE }
- sub get_all_metaclass_instances { values %METACLASS_CACHE }
- sub get_all_metaclass_names { keys %METACLASS_CACHE }
- sub get_metaclass_by_name { $METACLASS_CACHE{$_[0]} }
- sub store_metaclass_by_name { $METACLASS_CACHE{$_[0]} = $_[1] }
- sub weaken_metaclass { weaken($METACLASS_CACHE{$_[0]}) }
- sub does_metaclass_exist { exists $METACLASS_CACHE{$_[0]} && defined $METACLASS_CACHE{$_[0]} }
- sub remove_metaclass_by_name { $METACLASS_CACHE{$_[0]} = undef }
-};
-
-sub _construct_class_instance {
+sub _construct_meta {
my($class, %args) = @_;
- $args{attributes} = {};
+ $args{attributes} ||= {};
+ $args{methods} ||= {};
+ $args{roles} ||= [];
+
$args{superclasses} = do {
no strict 'refs';
\@{ $args{package} . '::ISA' };
};
- $args{roles} ||= [];
- $args{methods} ||= {};
- bless \%args, $class;
+ #return Mouse::Meta::Class->initialize($class)->new_object(%args)
+ # if $class ne __PACKAGE__;
+
+ return bless \%args, ref($class) || $class;
}
-sub name { $_[0]->{package} }
-sub _method_map{ $_[0]->{methods} }
+sub create_anon_class{
+ my $self = shift;
+ return $self->create(undef, @_);
+}
-sub namespace{
- my $name = $_[0]->{package};
- no strict 'refs';
- return \%{ $name . '::' };
+sub is_anon_class{
+ return exists $_[0]->{anon_serial_id};
}
+sub roles { $_[0]->{roles} }
+
sub superclasses {
my $self = shift;
@{ $self->{superclasses} } = @_;
}
- @{ $self->{superclasses} };
+ return @{ $self->{superclasses} };
+}
+
+sub find_method_by_name{
+ my($self, $method_name) = @_;
+ defined($method_name)
+ or $self->throw_error('You must define a method name to find');
+ foreach my $class( $self->linearized_isa ){
+ my $method = $self->initialize($class)->get_method($method_name);
+ return $method if defined $method;
+ }
+ return undef;
+}
+
+sub get_all_methods {
+ my($self) = @_;
+ return map{ $self->find_method_by_name($self) } $self->get_all_method_names;
}
sub get_all_method_names {
if (@_ == 1 && blessed($_[0])) {
my $attr = shift @_;
$self->{'attributes'}{$attr->name} = $attr;
- } else {
+ }
+ else {
my $names = shift @_;
$names = [$names] if !ref($names);
my $metaclass = 'Mouse::Meta::Attribute';
- my %options = @_;
+ my %options = (@_ == 1 ? %{$_[0]} : @_);
if ( my $metaclass_name = delete $options{metaclass} ) {
my $new_class = Mouse::Util::resolve_metaclass_alias(
for my $name (@$names) {
if ($name =~ s/^\+//) {
- $metaclass->clone_parent($self, $name, @_);
+ $metaclass->clone_parent($self, $name, %options);
}
else {
- $metaclass->create($self, $name, @_);
+ $metaclass->create($self, $name, %options);
}
}
}
return @attr;
}
-sub get_attribute_map { $_[0]->{attributes} }
-sub has_attribute { exists $_[0]->{attributes}->{$_[1]} }
-sub get_attribute { $_[0]->{attributes}->{$_[1]} }
-sub get_attribute_list {
+sub linearized_isa { @{ get_linear_isa($_[0]->name) } }
+
+sub new_object {
my $self = shift;
- keys %{$self->get_attribute_map};
-}
+ my %args = (@_ == 1 ? %{$_[0]} : @_);
-sub linearized_isa { @{ get_linear_isa($_[0]->name) } }
+ my $instance = bless {}, $self->name;
+
+ my @triggers_queue;
+
+ foreach my $attribute ($self->get_all_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;
+ $attribute->verify_against_type_constraint($args{$from});
+
+ $instance->{$key} = $args{$from};
+
+ weaken($instance->{$key})
+ if ref($instance->{$key}) && $attribute->is_weak_ref;
+
+ if ($attribute->has_trigger) {
+ push @triggers_queue, [ $attribute->trigger, $args{$from} ];
+ }
+ }
+ 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;
+ $attribute->verify_against_type_constraint($value);
+
+ $instance->{$key} = $value;
+
+ weaken($instance->{$key})
+ if ref($instance->{$key}) && $attribute->is_weak_ref;
+ }
+ }
+ else {
+ if ($attribute->is_required) {
+ $self->throw_error("Attribute (".$attribute->name.") is required");
+ }
+ }
+ }
+ }
+
+ foreach my $trigger_and_value(@triggers_queue){
+ my($trigger, $value) = @{$trigger_and_value};
+ $trigger->($instance, $value);
+ }
+
+ if($self->is_anon_class){
+ $instance->{__METACLASS__} = $self;
+ }
+
+ return $instance;
+}
sub clone_object {
my $class = shift;
my $instance = shift;
(blessed($instance) && $instance->isa($class->name))
- || confess "You must pass an instance of the metaclass (" . $class->name . "), not ($instance)";
+ || $class->throw_error("You must pass an instance of the metaclass (" . $class->name . "), not ($instance)");
$class->clone_instance($instance, @_);
}
my ($class, $instance, %params) = @_;
(blessed($instance))
- || confess "You can only clone instances, ($instance) is not a blessed instance";
+ || $class->throw_error("You can only clone instances, ($instance) is not a blessed instance");
my $clone = bless { %$instance }, ref $instance;
@_,
);
- my $name = $self->name;
$self->{is_immutable}++;
if ($args{inline_constructor}) {
return 1;
}
-sub make_mutable { confess "Mouse does not currently support 'make_mutable'" }
-
-sub is_immutable { $_[0]->{is_immutable} }
+sub make_mutable { not_supported }
-sub attribute_metaclass { "Mouse::Meta::Class" }
+sub is_immutable { $_[0]->{is_immutable} }
+sub is_mutable { !$_[0]->{is_immutable} }
sub _install_modifier {
my ( $self, $into, $type, $name, $code ) = @_;
# replace this method itself :)
{
- no strict 'refs';
no warnings 'redefine';
- *{__PACKAGE__ . '::_install_modifier'} = sub {
+ *_install_modifier = sub {
my ( $self, $into, $type, $name, $code ) = @_;
$modifier->(
$into,
$name,
$code
);
+ $self->{methods}{$name}++; # register it to the method map
+ return;
};
}
sub add_override_method_modifier {
my ($self, $name, $code) = @_;
- my $pkg = $self->name;
- my $method = "${pkg}::${name}";
-
- # Class::Method::Modifiers won't do this for us, so do it ourselves
+ my $package = $self->name;
- my $body = $pkg->can($name)
- or confess "You cannot override '$method' because it has no super method";
+ my $body = $package->can($name)
+ or $self->throw_error("You cannot override '$name' because it has no super method");
- no strict 'refs';
- *$method = sub { $code->($pkg, $body, @_) };
+ $self->add_method($name => sub { $code->($package, $body, @_) });
}
-
-sub roles { $_[0]->{roles} }
-
sub does_role {
my ($self, $role_name) = @_;
(defined $role_name)
- || confess "You must supply a role name to look for";
+ || $self->throw_error("You must supply a role name to look for");
for my $class ($self->linearized_isa) {
- my $meta = class_of($class);
+ my $meta = Mouse::Meta::Module::class_of($class);
next unless $meta && $meta->can('roles');
for my $role (@{ $meta->roles }) {
+
return 1 if $role->does_role($role_name);
}
}
return 0;
}
-sub create {
- my ($class, $package_name, %options) = @_;
-
- (ref $options{superclasses} eq 'ARRAY')
- || confess "You must pass an ARRAY ref of superclasses"
- if exists $options{superclasses};
-
- (ref $options{attributes} eq 'ARRAY')
- || confess "You must pass an ARRAY ref of attributes"
- if exists $options{attributes};
-
- (ref $options{methods} eq 'HASH')
- || confess "You must pass a HASH ref of methods"
- if exists $options{methods};
-
- do {
- ( defined $package_name && $package_name )
- || confess "You must pass a package name";
-
- my $code = "package $package_name;";
- $code .= "\$$package_name\:\:VERSION = '" . $options{version} . "';"
- if exists $options{version};
- $code .= "\$$package_name\:\:AUTHORITY = '" . $options{authority} . "';"
- if exists $options{authority};
-
- eval $code;
- confess "creation of $package_name failed : $@" if $@;
- };
-
- my %initialize_options = %options;
- delete @initialize_options{qw(
- package
- superclasses
- attributes
- methods
- version
- authority
- )};
- my $meta = $class->initialize( $package_name => %initialize_options );
-
- # FIXME totally lame
- $meta->add_method('meta' => sub {
- Mouse::Meta::Class->initialize(ref($_[0]) || $_[0]);
- });
-
- $meta->superclasses(@{$options{superclasses}})
- if exists $options{superclasses};
- # NOTE:
- # process attributes first, so that they can
- # install accessors, but locally defined methods
- # can then overwrite them. It is maybe a little odd, but
- # I think this should be the order of things.
- if (exists $options{attributes}) {
- foreach my $attr (@{$options{attributes}}) {
- Mouse::Meta::Attribute->create($meta, $attr->{name}, %$attr);
- }
- }
- if (exists $options{methods}) {
- foreach my $method_name (keys %{$options{methods}}) {
- $meta->add_method($method_name, $options{methods}->{$method_name});
- }
- }
- return $meta;
-}
-
-{
- my $ANON_CLASS_SERIAL = 0;
- my $ANON_CLASS_PREFIX = 'Mouse::Meta::Class::__ANON__::SERIAL::';
- sub create_anon_class {
- my ( $class, %options ) = @_;
- my $package_name = $ANON_CLASS_PREFIX . ++$ANON_CLASS_SERIAL;
- return $class->create( $package_name, %options );
- }
-}
-
1;
__END__
projects / gitmo/Mouse.git / blobdiff