use strict;
use warnings;
-use Carp 'confess';
use Scalar::Util ();
use Mouse::Meta::TypeConstraint;
+use Mouse::Meta::Method::Accessor;
sub new {
my ($class, $name, %options) = @_;
$options{init_arg} = $name
unless exists $options{init_arg};
- $options{is} ||= '';
+ my $is = $options{is} ||= '';
+
+ if($is eq 'rw'){
+ $options{accessor} = $name if !exists $options{accessor};
+ }
+ elsif($is eq 'ro'){
+ $options{reader} = $name if !exists $options{reader};
+ }
bless \%options, $class;
}
+# readers
+
sub name { $_[0]->{name} }
sub associated_class { $_[0]->{associated_class} }
+
+sub accessor { $_[0]->{accessor} }
+sub reader { $_[0]->{reader} }
+sub writer { $_[0]->{writer} }
+sub predicate { $_[0]->{predicate} }
+sub clearer { $_[0]->{clearer} }
+sub handles { $_[0]->{handles} }
+
sub _is_metadata { $_[0]->{is} }
sub is_required { $_[0]->{required} }
sub default { $_[0]->{default} }
sub is_lazy { $_[0]->{lazy} }
sub is_lazy_build { $_[0]->{lazy_build} }
-sub predicate { $_[0]->{predicate} }
-sub clearer { $_[0]->{clearer} }
-sub handles { $_[0]->{handles} }
sub is_weak_ref { $_[0]->{weak_ref} }
sub init_arg { $_[0]->{init_arg} }
sub type_constraint { $_[0]->{type_constraint} }
sub should_auto_deref { $_[0]->{auto_deref} }
sub should_coerce { $_[0]->{should_coerce} }
-sub has_default { exists $_[0]->{default} }
+# predicates
+
+sub has_accessor { exists $_[0]->{accessor} }
+sub has_reader { exists $_[0]->{reader} }
+sub has_writer { exists $_[0]->{writer} }
sub has_predicate { exists $_[0]->{predicate} }
sub has_clearer { exists $_[0]->{clearer} }
sub has_handles { exists $_[0]->{handles} }
+
+sub has_default { exists $_[0]->{default} }
sub has_type_constraint { exists $_[0]->{type_constraint} }
sub has_trigger { exists $_[0]->{trigger} }
sub has_builder { exists $_[0]->{builder} }
$_[0]->{_create_args}
}
+sub accessor_metaclass { 'Mouse::Meta::Method::Accessor' }
+
sub _inlined_name {
my $self = shift;
return sprintf '"%s"', quotemeta $self->name;
}
-sub _generate_accessor{
- my ($attribute) = @_;
-
- my $name = $attribute->name;
- my $default = $attribute->default;
- my $constraint = $attribute->type_constraint;
- my $builder = $attribute->builder;
- my $trigger = $attribute->trigger;
- my $is_weak = $attribute->is_weak_ref;
- my $should_deref = $attribute->should_auto_deref;
- my $should_coerce = $attribute->should_coerce;
-
- my $compiled_type_constraint = $constraint ? $constraint->{_compiled_type_constraint} : undef;
-
- my $self = '$_[0]';
- my $key = $attribute->_inlined_name;
-
- my $accessor =
- '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- "sub {\n";
- if ($attribute->_is_metadata eq 'rw') {
- $accessor .=
- '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- 'if (scalar(@_) >= 2) {' . "\n";
-
- my $value = '$_[1]';
-
- if ($constraint) {
- if ($should_coerce) {
- $accessor .=
- "\n".
- '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- 'my $val = Mouse::Util::TypeConstraints->typecast_constraints("'.$attribute->associated_class->name.'", $attribute->{type_constraint}, '.$value.');';
- $value = '$val';
- }
- if ($compiled_type_constraint) {
- $accessor .=
- "\n".
- '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- 'unless ($compiled_type_constraint->('.$value.')) {
- $attribute->verify_type_constraint_error($name, '.$value.', $attribute->{type_constraint});
- }' . "\n";
- } else {
- $accessor .=
- "\n".
- '#line ' . __LINE__ . ' "' . __FILE__ . "\"\n" .
- 'unless ($constraint->check('.$value.')) {
- $attribute->verify_type_constraint_error($name, '.$value.', $attribute->{type_constraint});
- }' . "\n";
- }
- }
-
- # if there's nothing left to do for the attribute we can return during
- # this setter
- $accessor .= 'return ' if !$is_weak && !$trigger && !$should_deref;
-
- $accessor .= $self.'->{'.$key.'} = '.$value.';' . "\n";
-
- if ($is_weak) {
- $accessor .= 'Scalar::Util::weaken('.$self.'->{'.$key.'}) if ref('.$self.'->{'.$key.'});' . "\n";
- }
-
- if ($trigger) {
- $accessor .= '$trigger->('.$self.', '.$value.');' . "\n";
- }
-
- $accessor .= "}\n";
- }
- else {
- $accessor .= 'Carp::confess("Cannot assign a value to a read-only accessor") if scalar(@_) >= 2;' . "\n";
- }
-
- if ($attribute->is_lazy) {
- $accessor .= $self.'->{'.$key.'} = ';
-
- $accessor .= $attribute->has_builder
- ? $self.'->$builder'
- : ref($default) eq 'CODE'
- ? '$default->('.$self.')'
- : '$default';
- $accessor .= ' if !exists '.$self.'->{'.$key.'};' . "\n";
- }
-
- if ($should_deref) {
- if (ref($constraint) && $constraint->name =~ '^ArrayRef\b') {
- $accessor .= 'if (wantarray) {
- return @{ '.$self.'->{'.$key.'} || [] };
- }';
- }
- else {
- $accessor .= 'if (wantarray) {
- return %{ '.$self.'->{'.$key.'} || {} };
- }';
- }
- }
-
- $accessor .= 'return '.$self.'->{'.$key.'};
- }';
-
- my $sub = eval $accessor;
- $attribute->throw_error($@) if $@;
- return $sub;
-}
-
-
-sub _generate_predicate {
- my $attribute = shift;
- my $key = $attribute->_inlined_name;
-
- my $predicate = 'sub { exists($_[0]->{'.$key.'}) }';
-
- my $sub = eval $predicate;
- $attribute->throw_error($@) if $@;
- return $sub;
-}
-
-sub _generate_clearer {
- my $attribute = shift;
- my $key = $attribute->_inlined_name;
-
- my $clearer = 'sub { delete($_[0]->{'.$key.'}) }';
-
- my $sub = eval $clearer;
- $attribute->throw_error($@) if $@;
- return $sub;
-}
-
-sub _generate_handles {
- my $attribute = shift;
- my $reader = $attribute->name;
- my %handles = $attribute->_canonicalize_handles($attribute->handles);
-
- my %method_map;
-
- for my $local_method (keys %handles) {
- my $remote_method = $handles{$local_method};
-
- my $method = 'sub {
- my $self = shift;
- $self->'.$reader.'->'.$remote_method.'(@_)
- }';
-
- $method_map{$local_method} = eval $method;
- $attribute->throw_error($@) if $@;
- }
-
- return \%method_map;
-}
sub create {
my ($self, $class, $name, %args) = @_;
- $args{name} = $name;
+ $args{name} = $name;
$args{associated_class} = $class;
%args = $self->canonicalize_args($name, %args);
my $associated_methods = 0;
- my $is_metadata = $attribute->_is_metadata || '';
-
- # install an accessor
- if ($is_metadata eq 'rw' || $is_metadata eq 'ro') {
- my $code = $attribute->_generate_accessor();
- $class->add_method($name => $code);
- $associated_methods++;
- }
-
- for my $method (qw/predicate clearer/) {
- my $predicate = "has_$method";
- if ($attribute->$predicate) {
- my $generator = "_generate_$method";
- my $coderef = $attribute->$generator;
- $class->add_method($attribute->$method => $coderef);
- $associated_methods++;
- }
- }
-
- if ($attribute->has_handles) {
- my $method_map = $attribute->_generate_handles;
- for my $method_name (keys %$method_map) {
- $class->add_method($method_name => $method_map->{$method_name});
+ my $generator_class = $self->accessor_metaclass;
+ foreach my $type(qw(accessor reader writer predicate clearer handles)){
+ if(exists $attribute->{$type}){
+ my $installer = '_install_' . $type;
+ $generator_class->$installer($attribute, $attribute->{$type}, $class);
$associated_methods++;
}
}
- if($associated_methods == 0 && $is_metadata ne 'bare'){
+ if($associated_methods == 0 && ($attribute->_is_metadata || '') ne 'bare'){
Carp::cluck(qq{Attribute ($name) of class }.$class->name.qq{ has no associated methods (did you mean to provide an "is" argument?)});
}
projects / gitmo/Mouse.git / blobdiff