use Mouse::Meta::TypeConstraint;
-#use Mouse::Meta::Method::Accessor;
-use Mouse::Meta::Method::Delegation;
-
sub _process_options{
my($class, $name, $args) = @_;
-
# XXX: for backward compatibility (with method modifiers)
if($class->can('canonicalize_args') != \&canonicalize_args){
%{$args} = $class->canonicalize_args($name, %{$args});
my ($self, $name, %args) = @_;
Carp::cluck("$self->canonicalize_args has been deprecated."
- . "Use \$self->_process_options instead.")
- if Mouse::Util::_MOUSE_VERBOSE;
+ . "Use \$self->_process_options instead.");
return %args;
}
my ($self, $class, $name, %args) = @_;
Carp::cluck("$self->create has been deprecated."
- . "Use \$meta->add_attribute and \$attr->install_accessors instead.")
- if Mouse::Util::_MOUSE_VERBOSE;
+ . "Use \$meta->add_attribute and \$attr->install_accessors instead.");
# noop
return $self;
return 1 if !$type_constraint;
return 1 if $type_constraint->check($value);
- $self->verify_type_constraint_error($self->name, $value, $type_constraint);
+ $self->_throw_type_constraint_error($value, $type_constraint);
}
-sub verify_type_constraint_error {
- my($self, $name, $value, $type) = @_;
- $self->throw_error("Attribute ($name) does not pass the type constraint because: "
- . $type->get_message($value));
-}
-
-sub coerce_constraint { # DEPRECATED
- my $type = $_[0]->{type_constraint}
- or return $_[1];
-
- Carp::cluck("coerce_constraint() has been deprecated, which was an internal utility anyway");
+sub _throw_type_constraint_error {
+ my($self, $value, $type) = @_;
- return Mouse::Util::TypeConstraints->typecast_constraints($_[0]->associated_class->name, $type, $_[1]);
+ $self->throw_error(
+ sprintf q{Attribute (%s) does not pass the type constraint because: %s},
+ $self->name,
+ $type->get_message($value),
+ );
}
sub clone_and_inherit_options{
my %args = ($self->get_parent_args($class, $name), @_);
Carp::cluck("$self->clone_parent has been deprecated."
- . "Use \$meta->add_attribute and \$attr->install_accessors instead.")
- if Mouse::Util::_MOUSE_VERBOSE;
+ . "Use \$meta->add_attribute and \$attr->install_accessors instead.");
$self->clone_and_inherited_args($class, $name, %args);
}
sub get_read_method {
- $_[0]->reader || $_[0]->accessor
+ return $_[0]->reader || $_[0]->accessor
}
sub get_write_method {
- $_[0]->writer || $_[0]->accessor
+ return $_[0]->writer || $_[0]->accessor
}
-sub get_read_method_ref{
- my($self) = @_;
+sub _get_accessor_method_ref {
+ my($self, $type, $generator) = @_;
- $self->{_read_method_ref} ||= do{
- my $metaclass = $self->associated_class
- or $self->throw_error('No asocciated class for ' . $self->name);
+ my $metaclass = $self->associated_class
+ || $self->throw_error('No asocciated class for ' . $self->name);
- my $reader = $self->{reader} || $self->{accessor};
- if($reader){
- $metaclass->name->can($reader);
- }
- else{
- $self->accessor_metaclass->_generate_reader($self, $metaclass);
- }
- };
+ my $accessor = $self->$type();
+ if($accessor){
+ return $metaclass->get_method_body($accessor);
+ }
+ else{
+ return $self->accessor_metaclass->$generator($self, $metaclass);
+ }
+}
+
+sub get_read_method_ref{
+ my($self) = @_;
+ return $self->{_read_method_ref} ||= $self->_get_accessor_method_ref('get_read_method', '_generate_reader');
}
sub get_write_method_ref{
my($self) = @_;
+ return $self->{_write_method_ref} ||= $self->_get_accessor_method_ref('get_write_method', '_generate_writer');
+}
- $self->{_write_method_ref} ||= do{
- my $metaclass = $self->associated_class
- or $self->throw_error('No asocciated class for ' . $self->name);
+sub set_value {
+ my($self, $object, $value) = @_;
+ return $self->get_write_method_ref()->($object, $value);
+}
- my $reader = $self->{writer} || $self->{accessor};
- if($reader){
- $metaclass->name->can($reader);
- }
- else{
- $self->accessor_metaclass->_generate_writer($self, $metaclass);
- }
- };
+sub get_value {
+ my($self, $object) = @_;
+ return $self->get_read_method_ref()->($object);
}
-sub _canonicalize_handles {
- my($self, $handles) = @_;
+sub has_value {
+ my($self, $object) = @_;
+ my $accessor_ref = $self->{_predicate_ref}
+ ||= $self->_get_accessor_method_ref('predicate', '_generate_predicate');
- if (ref($handles) eq 'HASH') {
- return %$handles;
- }
- elsif (ref($handles) eq 'ARRAY') {
- return map { $_ => $_ } @$handles;
- }
- elsif (ref($handles) eq 'Regexp') {
- my $class_or_role = ($self->{isa} || $self->{does})
- || $self->throw_error("Cannot delegate methods based on a Regexp without a type constraint (isa)");
+ return $accessor_ref->($object);
+}
- my $meta = Mouse::Meta::Class->initialize("$class_or_role"); # "" for stringify
- return map { $_ => $_ }
- grep { !Mouse::Object->can($_) && $_ =~ $handles }
- Mouse::Util::is_a_metarole($meta)
- ? $meta->get_method_list
- : $meta->get_all_method_names;
- }
- else {
- $self->throw_error("Unable to canonicalize the 'handles' option with $handles");
- }
+sub clear_value {
+ my($self, $object) = @_;
+ my $accessor_ref = $self->{_crealer_ref}
+ ||= $self->_get_accessor_method_ref('clearer', '_generate_clearer');
+
+ return $accessor_ref->($object);
}
+
sub associate_method{
my ($attribute, $method_name) = @_;
$attribute->{associated_methods}++;
return;
}
-sub delegation_metaclass() { 'Mouse::Meta::Method::Delegation' }
-
sub install_accessors{
my($attribute) = @_;
# install delegation
if(exists $attribute->{handles}){
- my $delegation_class = $attribute->delegation_metaclass;
my %handles = $attribute->_canonicalize_handles($attribute->{handles});
- my $reader = $attribute->get_read_method_ref;
- while(my($handle_name, $method_to_call) = each %handles){
- my $code = $delegation_class->_generate_delegation($attribute, $metaclass,
- $reader, $handle_name, $method_to_call);
+ while(my($handle, $method_to_call) = each %handles){
+ $metaclass->add_method($handle =>
+ $attribute->_make_delegation_method(
+ $handle, $method_to_call));
- $metaclass->add_method($handle_name => $code);
- $attribute->associate_method($handle_name);
+ $attribute->associate_method($handle);
}
}
return;
}
+sub delegation_metaclass() { 'Mouse::Meta::Method::Delegation' }
+
+sub _canonicalize_handles {
+ my($self, $handles) = @_;
+
+ if (ref($handles) eq 'HASH') {
+ return %$handles;
+ }
+ elsif (ref($handles) eq 'ARRAY') {
+ return map { $_ => $_ } @$handles;
+ }
+ elsif ( ref($handles) eq 'CODE' ) {
+ my $class_or_role = ( $self->{isa} || $self->{does} )
+ || $self->throw_error( "Cannot find delegate metaclass for attribute " . $self->name );
+ return $handles->( $self, Mouse::Meta::Class->initialize("$class_or_role"));
+ }
+ elsif (ref($handles) eq 'Regexp') {
+ my $class_or_role = ($self->{isa} || $self->{does})
+ || $self->throw_error("Cannot delegate methods based on a Regexp without a type constraint (isa)");
+
+ my $meta = Mouse::Meta::Class->initialize("$class_or_role"); # "" for stringify
+ return map { $_ => $_ }
+ grep { !Mouse::Object->can($_) && $_ =~ $handles }
+ Mouse::Util::is_a_metarole($meta)
+ ? $meta->get_method_list
+ : $meta->get_all_method_names;
+ }
+ else {
+ $self->throw_error("Unable to canonicalize the 'handles' option with $handles");
+ }
+}
+
+sub _make_delegation_method {
+ my($self, $handle, $method_to_call) = @_;
+ my $delegator = $self->delegation_metaclass;
+ Mouse::Util::load_class($delegator);
+
+ return $delegator->_generate_delegation($self, $handle, $method_to_call);
+}
+
sub throw_error{
my $self = shift;
=head1 VERSION
-This document describes Mouse version 0.42
+This document describes Mouse version 0.4501
=head1 METHODS