'does',
'handles',
'init_arg',
+ 'insertion_order',
'is',
'isa',
'lazy',
# internally used
'associated_class',
'associated_methods',
+ '__METACLASS__',
# Moose defines, but Mouse doesn't
#'definition_context',
#'initializer',
- #'insertion_order',
# special case for AttributeHelpers
'provides',
my $args = $class->Mouse::Object::BUILDARGS(@_);
- # XXX: for backward compatibility (with method modifiers)
- if($class->can('canonicalize_args') != \&canonicalize_args){
- %{$args} = $class->canonicalize_args($name, %{$args});
- }
-
$class->_process_options($name, $args);
$args->{name} = $name;
}
my $self = bless $args, $class;
-
- # extra attributes
if($class ne __PACKAGE__){
$class->meta->_initialize_object($self, $args);
}
-
return $self;
}
-sub has_read_method { $_[0]->has_reader || $_[0]->has_accessor }
-sub has_write_method { $_[0]->has_writer || $_[0]->has_accessor }
+sub has_read_method { $_[0]->has_reader || $_[0]->has_accessor }
+sub has_write_method { $_[0]->has_writer || $_[0]->has_accessor }
+
+sub get_read_method { $_[0]->reader || $_[0]->accessor }
+sub get_write_method { $_[0]->writer || $_[0]->accessor }
-sub _create_args { # DEPRECATED
- $_[0]->{_create_args} = $_[1] if @_ > 1;
- $_[0]->{_create_args}
+sub get_read_method_ref{
+ my($self) = @_;
+ return $self->{_mouse_cache_read_method_ref}
+ ||= $self->_get_accessor_method_ref('get_read_method', '_generate_reader');
+}
+
+sub get_write_method_ref{
+ my($self) = @_;
+ return $self->{_mouse_cache_write_method_ref}
+ ||= $self->_get_accessor_method_ref('get_write_method', '_generate_writer');
}
sub interpolate_class{
return( $class, @traits );
}
-sub canonicalize_args{ # DEPRECATED
- #my($self, $name, %args) = @_;
- my($self, undef, %args) = @_;
-
- Carp::cluck("$self->canonicalize_args has been deprecated."
- . "Use \$self->_process_options instead.");
-
- return %args;
-}
-
-sub create { # DEPRECATED
- #my($self, $class, $name, %args) = @_;
- my($self) = @_;
-
- Carp::cluck("$self->create has been deprecated."
- . "Use \$meta->add_attribute and \$attr->install_accessors instead.");
-
- # noop
- return $self;
-}
-
-sub _coerce_and_verify {
- #my($self, $value, $instance) = @_;
- my($self, $value) = @_;
-
- my $type_constraint = $self->{type_constraint};
- return $value if !defined $type_constraint;
-
- if ($self->should_coerce && $type_constraint->has_coercion) {
- $value = $type_constraint->coerce($value);
- }
-
- $self->verify_against_type_constraint($value);
-
- return $value;
-}
-
sub verify_against_type_constraint {
my ($self, $value) = @_;
);
}
+sub illegal_options_for_inheritance {
+ return qw(reader writer accessor clearer predicate);
+}
+
sub clone_and_inherit_options{
my $self = shift;
my $args = $self->Mouse::Object::BUILDARGS(@_);
- my($attribute_class, @traits) = ref($self)->interpolate_class($args);
+ foreach my $illegal($self->illegal_options_for_inheritance) {
+ if(exists $args->{$illegal} and exists $self->{$illegal}) {
+ $self->throw_error("Illegal inherited option: $illegal");
+ }
+ }
- $args->{traits} = \@traits if @traits;
- # do not inherit the 'handles' attribute
foreach my $name(keys %{$self}){
- if(!exists $args->{$name} && $name ne 'handles'){
- $args->{$name} = $self->{$name};
+ if(!exists $args->{$name}){
+ $args->{$name} = $self->{$name}; # inherit from self
}
}
+ my($attribute_class, @traits) = ref($self)->interpolate_class($args);
+ $args->{traits} = \@traits if @traits;
+
# remove temporary caches
foreach my $attr(keys %{$args}){
- if($attr =~ /\A _/xms){
+ if($attr =~ /\A _mouse_cache_/xms){
delete $args->{$attr};
}
}
- return $attribute_class->new($self->name, $args);
-}
-
-sub clone_parent { # DEPRECATED
- my $self = shift;
- my $class = shift;
- my $name = shift;
- my %args = ($self->get_parent_args($class, $name), @_);
-
- Carp::cluck("$self->clone_parent has been deprecated."
- . "Use \$meta->add_attribute and \$attr->install_accessors instead.");
-
- $self->clone_and_inherited_args($class, $name, %args);
-}
-
-sub get_parent_args { # DEPRECATED
- my $self = shift;
- my $class = shift;
- my $name = shift;
-
- for my $super ($class->linearized_isa) {
- my $super_attr = $super->can("meta") && $super->meta->get_attribute($name)
- or next;
- return %{ $super_attr->_create_args };
+ # remove default if lazy_build => 1
+ if($args->{lazy_build}) {
+ delete $args->{default};
}
- $self->throw_error("Could not find an attribute by the name of '$name' to inherit from");
+ return $attribute_class->new($self->name, $args);
}
-sub get_read_method {
- return $_[0]->reader || $_[0]->accessor
-}
-sub get_write_method {
- return $_[0]->writer || $_[0]->accessor
-}
-
sub _get_accessor_method_ref {
my($self, $type, $generator) = @_;
}
}
-sub get_read_method_ref{
- my($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} ||= $self->_get_accessor_method_ref('get_write_method', '_generate_writer');
-}
-
sub set_value {
my($self, $object, $value) = @_;
return $self->get_write_method_ref()->($object, $value);
sub has_value {
my($self, $object) = @_;
- my $accessor_ref = $self->{_predicate_ref}
+ my $accessor_ref = $self->{_mouse_cache_predicate_ref}
||= $self->_get_accessor_method_ref('predicate', '_generate_predicate');
return $accessor_ref->($object);
sub clear_value {
my($self, $object) = @_;
- my $accessor_ref = $self->{_crealer_ref}
+ my $accessor_ref = $self->{_mouse_cache_crealer_ref}
||= $self->_get_accessor_method_ref('clearer', '_generate_clearer');
return $accessor_ref->($object);
}
-
sub associate_method{
#my($attribute, $method_name) = @_;
my($attribute) = @_;
if(exists $attribute->{$type}){
my $generator = '_generate_' . $type;
my $code = $accessor_class->$generator($attribute, $metaclass);
- $metaclass->add_method($attribute->{$type} => $code);
- $attribute->associate_method($attribute->{$type});
+ my $name = $attribute->{$type};
+# TODO: do something for compatibility
+# if( $metaclass->name->can($name) ) {
+# my $t = $metaclass->has_method($name) ? 'method' : 'function';
+# Carp::cluck("You are overwriting a locally defined $t"
+# . " ($name) with an accessor");
+# }
+ $metaclass->add_method($name => $code);
+ $attribute->associate_method($name);
}
}
# install delegation
if(exists $attribute->{handles}){
- my %handles = $attribute->_canonicalize_handles($attribute->{handles});
-
+ my %handles = $attribute->_canonicalize_handles();
while(my($handle, $method_to_call) = each %handles){
+ next if Mouse::Object->can($handle);
+
+ if($metaclass->has_method($handle)) {
+ $attribute->throw_error("You cannot overwrite a locally defined method ($handle) with a delegation");
+ }
+
$metaclass->add_method($handle =>
$attribute->_make_delegation_method(
$handle, $method_to_call));
}
}
- if($attribute->can('create') != \&create){
- # backword compatibility
- $attribute->create($metaclass, $attribute->name, %{$attribute});
- }
-
return;
}
}
sub _canonicalize_handles {
- my($self, $handles) = @_;
+ my($self) = @_;
+ my $handles = $self->{handles};
- if (ref($handles) eq 'HASH') {
+ my $handle_type = ref $handles;
+ if ($handle_type eq 'HASH') {
return %$handles;
}
- elsif (ref($handles) eq 'ARRAY') {
+ elsif ($handle_type 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
+ elsif ($handle_type eq 'Regexp') {
+ my $meta = $self->_find_delegate_metaclass();
return map { $_ => $_ }
- grep { !Mouse::Object->can($_) && $_ =~ $handles }
+ grep { /$handles/ }
Mouse::Util::is_a_metarole($meta)
? $meta->get_method_list
: $meta->get_all_method_names;
}
+ elsif ($handle_type eq 'CODE') {
+ return $handles->( $self, $self->_find_delegate_metaclass() );
+ }
else {
$self->throw_error("Unable to canonicalize the 'handles' option with $handles");
}
}
+sub _find_delegate_metaclass {
+ my($self) = @_;
+ my $meta;
+ if($self->{isa}) {
+ $meta = Mouse::Meta::Class->initialize("$self->{isa}");
+ }
+ elsif($self->{does}) {
+ $meta = Mouse::Util::get_metaclass_by_name("$self->{does}");
+ }
+ defined($meta) or $self->throw_error(
+ "Cannot find delegate metaclass for attribute " . $self->name);
+ return $meta;
+}
+
+
sub _make_delegation_method {
my($self, $handle, $method_to_call) = @_;
return Mouse::Util::load_class($self->delegation_metaclass)
->_generate_delegation($self, $handle, $method_to_call);
}
-sub throw_error{
- my $self = shift;
-
- my $metaclass = (ref $self && $self->associated_class) || 'Mouse::Meta::Class';
- $metaclass->throw_error(@_, depth => 1);
-}
-
1;
__END__
=head1 VERSION
-This document describes Mouse version 0.50_09
+This document describes Mouse version 0.95
+
+=head1 DESCRIPTION
+
+This is a meta object protocol for Mouse attributes,
+which is a subset of Moose::Meta::Attribute.
=head1 METHODS
projects / gitmo/Mouse.git / blobdiff