use strict;
use warnings;
-our $VERSION = '0.91';
-$VERSION = eval $VERSION;
-our $AUTHORITY = 'cpan:STEVAN';
+use Try::Tiny;
use base 'Moose::Meta::Method',
'Class::MOP::Method::Accessor';
+# multiple inheritance is terrible
+sub new {
+ goto &Class::MOP::Method::Accessor::new;
+}
+
+sub _new {
+ goto &Class::MOP::Method::Accessor::_new;
+}
+
sub _error_thrower {
my $self = shift;
- ( ref $self && $self->associated_attribute ) || $self->SUPER::_error_thrower();
+ return $self->associated_attribute
+ if ref($self) && defined($self->associated_attribute);
+ return $self->SUPER::_error_thrower;
}
-sub _eval_code {
- my ( $self, $source ) = @_;
-
- # NOTE:
- # set up the environment
- my $attr = $self->associated_attribute;
- my $type_constraint_obj = $attr->type_constraint;
- my $environment = {
- '$attr' => \$attr,
- '$attr_name' => \$attr->name,
- '$meta' => \$self,
- '$type_constraint_obj' => \$type_constraint_obj,
- '$type_constraint_name' => \($type_constraint_obj && $type_constraint_obj->name),
- '$type_constraint' => \($type_constraint_obj
- ? $type_constraint_obj->_compiled_type_constraint
- : undef),
+sub _compile_code {
+ my $self = shift;
+ my @args = @_;
+ try {
+ $self->SUPER::_compile_code(@args);
+ }
+ catch {
+ $self->throw_error(
+ 'Could not create writer for '
+ . "'" . $self->associated_attribute->name . "' "
+ . 'because ' . $_,
+ error => $_,
+ );
};
-
- #warn "code for " . $attr->name . " =>\n" . $source . "\n";
- my ( $code, $e ) = $self->_compile_code( environment => $environment, code => $source );
-
- $self->throw_error(
- "Could not create writer for '${\$self->associated_attribute->name}' because $e \n code: $source",
- error => $e, data => $source )
- if $e;
-
- return $code;
}
-sub _generate_accessor_method_inline {
- my $self = $_[0];
- my $attr = $self->associated_attribute;
- my $attr_name = $attr->name;
- my $inv = '$_[0]';
- my $value_name = $self->_value_needs_copy ? '$val' : '$_[1]';
-
- $self->_eval_code('sub { ' . "\n"
- . $self->_inline_pre_body(@_) . "\n"
- . 'if (scalar(@_) >= 2) {' . "\n"
- . $self->_inline_copy_value . "\n"
- . $self->_inline_check_required . "\n"
- . $self->_inline_check_coercion($value_name) . "\n"
- . $self->_inline_check_constraint($value_name) . "\n"
- . $self->_inline_get_old_value_for_trigger($inv, $value_name) . "\n"
- . $self->_inline_store($inv, $value_name) . "\n"
- . $self->_inline_trigger($inv, $value_name, '@old') . "\n"
- . ' }' . "\n"
- . $self->_inline_check_lazy($inv) . "\n"
- . $self->_inline_post_body(@_) . "\n"
- . 'return ' . $self->_inline_auto_deref($self->_inline_get($inv)) . "\n"
- . ' }');
+sub _eval_environment {
+ my $self = shift;
+ return $self->associated_attribute->_eval_environment;
}
-sub _generate_writer_method_inline {
- my $self = $_[0];
- my $attr = $self->associated_attribute;
- my $attr_name = $attr->name;
- my $inv = '$_[0]';
- my $slot_access = $self->_inline_get($inv, $attr_name);
- my $value_name = $self->_value_needs_copy ? '$val' : '$_[1]';
-
- $self->_eval_code('sub { '
- . $self->_inline_pre_body(@_)
- . $self->_inline_copy_value
- . $self->_inline_check_required
- . $self->_inline_check_coercion($value_name)
- . $self->_inline_check_constraint($value_name)
- . $self->_inline_get_old_value_for_trigger($inv, $value_name) . "\n"
- . $self->_inline_store($inv, $value_name)
- . $self->_inline_post_body(@_)
- . $self->_inline_trigger($inv, $value_name, '@old')
- . ' }');
+sub _instance_is_inlinable {
+ my $self = shift;
+ return $self->associated_attribute->associated_class->instance_metaclass->is_inlinable;
}
-sub _generate_reader_method_inline {
- my $self = $_[0];
- my $attr = $self->associated_attribute;
- my $attr_name = $attr->name;
- my $inv = '$_[0]';
- my $slot_access = $self->_inline_get($inv, $attr_name);
-
- $self->_eval_code('sub {'
- . $self->_inline_pre_body(@_)
- . $self->_inline_throw_error('"Cannot assign a value to a read-only accessor"', 'data => \@_') . ' if @_ > 1;'
- . $self->_inline_check_lazy($inv)
- . $self->_inline_post_body(@_)
- . 'return ' . $self->_inline_auto_deref( $slot_access ) . ';'
- . '}');
+sub _generate_reader_method {
+ my $self = shift;
+ $self->_instance_is_inlinable ? $self->_generate_reader_method_inline(@_)
+ : $self->SUPER::_generate_reader_method(@_);
}
-sub _inline_copy_value {
- return '' unless shift->_value_needs_copy;
- return 'my $val = $_[1];'
+sub _generate_writer_method {
+ my $self = shift;
+ $self->_instance_is_inlinable ? $self->_generate_writer_method_inline(@_)
+ : $self->SUPER::_generate_writer_method(@_);
}
-sub _value_needs_copy {
- my $attr = (shift)->associated_attribute;
- return $attr->should_coerce;
+sub _generate_accessor_method {
+ my $self = shift;
+ $self->_instance_is_inlinable ? $self->_generate_accessor_method_inline(@_)
+ : $self->SUPER::_generate_accessor_method(@_);
}
-sub _generate_reader_method { shift->_generate_reader_method_inline(@_) }
-sub _generate_writer_method { shift->_generate_writer_method_inline(@_) }
-sub _generate_accessor_method { shift->_generate_accessor_method_inline(@_) }
-sub _generate_predicate_method { shift->_generate_predicate_method_inline(@_) }
-sub _generate_clearer_method { shift->_generate_clearer_method_inline(@_) }
-
-sub _inline_pre_body { '' }
-sub _inline_post_body { '' }
-
-sub _inline_check_constraint {
- my ($self, $value) = @_;
-
- my $attr = $self->associated_attribute;
- my $attr_name = $attr->name;
+sub _generate_predicate_method {
+ my $self = shift;
+ $self->_instance_is_inlinable ? $self->_generate_predicate_method_inline(@_)
+ : $self->SUPER::_generate_predicate_method(@_);
+}
- return '' unless $attr->has_type_constraint;
+sub _generate_clearer_method {
+ my $self = shift;
+ $self->_instance_is_inlinable ? $self->_generate_clearer_method_inline(@_)
+ : $self->SUPER::_generate_clearer_method(@_);
+}
- my $type_constraint_name = $attr->type_constraint->name;
+sub _writer_value_needs_copy {
+ shift->associated_attribute->_writer_value_needs_copy(@_);
+}
- qq{\$type_constraint->($value) || } . $self->_inline_throw_error(qq{"Attribute ($attr_name) does not pass the type constraint because: " . \$type_constraint_obj->get_message($value)}, "data => $value") . ";";
+sub _inline_tc_code {
+ shift->associated_attribute->_inline_tc_code(@_);
}
sub _inline_check_coercion {
- my ($self, $value) = @_;
-
- my $attr = $self->associated_attribute;
-
- return '' unless $attr->should_coerce;
- return "$value = \$attr->type_constraint->coerce($value);";
+ shift->associated_attribute->_inline_check_coercion(@_);
}
-sub _inline_check_required {
- my $self = shift;
- my $attr = $self->associated_attribute;
-
- my $attr_name = $attr->name;
-
- return '' unless $attr->is_required;
- return qq{(\@_ >= 2) || } . $self->_inline_throw_error(qq{"Attribute ($attr_name) is required, so cannot be set to undef"}) . ';' # defined $_[1] is not good enough
+sub _inline_check_constraint {
+ shift->associated_attribute->_inline_check_constraint(@_);
}
sub _inline_check_lazy {
- my ($self, $instance) = @_;
-
- my $attr = $self->associated_attribute;
-
- return '' unless $attr->is_lazy;
-
- my $slot_exists = $self->_inline_has($instance, $attr->name);
-
- my $code = 'unless (' . $slot_exists . ') {' . "\n";
- if ($attr->has_type_constraint) {
- if ($attr->has_default || $attr->has_builder) {
- if ($attr->has_default) {
- $code .= ' my $default = $attr->default(' . $instance . ');'."\n";
- }
- elsif ($attr->has_builder) {
- $code .= ' my $default;'."\n".
- ' if(my $builder = '.$instance.'->can($attr->builder)){ '."\n".
- ' $default = '.$instance.'->$builder; '. "\n } else {\n" .
- ' ' . $self->_inline_throw_error(q{sprintf "%s does not support builder method '%s' for attribute '%s'", ref(} . $instance . ') || '.$instance.', $attr->builder, $attr->name') .
- ';'. "\n }";
- }
- $code .= $self->_inline_check_coercion('$default') . "\n";
- $code .= $self->_inline_check_constraint('$default') . "\n";
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, '$default') . "\n";
- }
- else {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, 'undef') . "\n";
- }
-
- } else {
- if ($attr->has_default) {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, ('$attr->default(' . $instance . ')')) . "\n";
- }
- elsif ($attr->has_builder) {
- $code .= ' if (my $builder = '.$instance.'->can($attr->builder)) { ' . "\n"
- . ' ' . $self->_inline_init_slot($attr, $instance, ($instance . '->$builder'))
- . "\n } else {\n"
- . ' ' . $self->_inline_throw_error(q{sprintf "%s does not support builder method '%s' for attribute '%s'", ref(} . $instance . ') || '.$instance.', $attr->builder, $attr->name')
- . ';'. "\n }";
- }
- else {
- $code .= ' ' . $self->_inline_init_slot($attr, $instance, 'undef') . "\n";
- }
- }
- $code .= "}\n";
- return $code;
-}
-
-sub _inline_init_slot {
- my ($self, $attr, $inv, $value) = @_;
- if ($attr->has_initializer) {
- return ('$attr->set_initial_value(' . $inv . ', ' . $value . ');');
- }
- else {
- return $self->_inline_store($inv, $value);
- }
+ shift->associated_attribute->_inline_check_lazy(@_);
}
-sub _inline_store {
- my ($self, $instance, $value) = @_;
- my $attr = $self->associated_attribute;
-
- my $mi = $attr->associated_class->get_meta_instance;
-
- my $code = $mi->inline_set_slot_value($instance, $attr->slots, $value) . ";";
- $code .= $mi->inline_weaken_slot_value($instance, $attr->slots, $value) . ";"
- if $attr->is_weak_ref;
- return $code;
+sub _inline_store_value {
+ shift->associated_attribute->_inline_instance_set(@_) . ';';
}
sub _inline_get_old_value_for_trigger {
- my ( $self, $instance ) = @_;
-
- my $attr = $self->associated_attribute;
- return '' unless $attr->has_trigger;
-
- my $mi = $attr->associated_class->get_meta_instance;
- my $pred = $mi->inline_is_slot_initialized($instance, $attr->name);
-
- return
- 'my @old = '
- . $pred . q{ ? }
- . $self->_inline_get($instance) . q{ : ()} . ";\n";
+ shift->associated_attribute->_inline_get_old_value_for_trigger(@_);
}
sub _inline_trigger {
- my ($self, $instance, $value, $old_value) = @_;
- my $attr = $self->associated_attribute;
- return '' unless $attr->has_trigger;
- return sprintf('$attr->trigger->(%s, %s, %s);', $instance, $value, $old_value);
+ shift->associated_attribute->_inline_trigger(@_);
}
-sub _inline_get {
- my ($self, $instance) = @_;
- my $attr = $self->associated_attribute;
-
- my $mi = $attr->associated_class->get_meta_instance;
-
- return $mi->inline_get_slot_value($instance, $attr->slots);
+sub _get_value {
+ shift->associated_attribute->_inline_instance_get(@_);
}
-sub _inline_access {
- my ($self, $instance) = @_;
- my $attr = $self->associated_attribute;
-
- my $mi = $attr->associated_class->get_meta_instance;
-
- return $mi->inline_slot_access($instance, $attr->slots);
-}
-
-sub _inline_has {
- my ($self, $instance) = @_;
- my $attr = $self->associated_attribute;
-
- my $mi = $attr->associated_class->get_meta_instance;
-
- return $mi->inline_is_slot_initialized($instance, $attr->slots);
-}
-
-sub _inline_auto_deref {
- my ( $self, $ref_value ) = @_;
- my $attr = $self->associated_attribute;
-
- return $ref_value unless $attr->should_auto_deref;
-
- my $type_constraint = $attr->type_constraint;
-
- my $sigil;
- if ($type_constraint->is_a_type_of('ArrayRef')) {
- $sigil = '@';
- }
- elsif ($type_constraint->is_a_type_of('HashRef')) {
- $sigil = '%';
- }
- else {
- $self->throw_error("Can not auto de-reference the type constraint '" . $type_constraint->name . "'", type_constraint => $type_constraint );
- }
-
- "(wantarray() ? $sigil\{ ( $ref_value ) || return } : ( $ref_value ) )";
+sub _has_value {
+ shift->associated_attribute->_inline_instance_has(@_);
}
1;
+# ABSTRACT: A Moose Method metaclass for accessors
+
__END__
=pod
-=head1 NAME
-
-Moose::Meta::Method::Accessor - A Moose Method metaclass for accessors
-
=head1 DESCRIPTION
This class is a subclass of L<Class::MOP::Method::Accessor> that
=head1 BUGS
-All complex software has bugs lurking in it, and this module is no
-exception. If you find a bug please either email me, or add the bug
-to cpan-RT.
-
-=head1 AUTHOR
-
-Stevan Little E<lt>stevan@iinteractive.comE<gt>
-
-Yuval Kogman E<lt>nothingmuch@woobling.comE<gt>
-
-=head1 COPYRIGHT AND LICENSE
-
-Copyright 2006-2009 by Infinity Interactive, Inc.
-
-L<http://www.iinteractive.com>
-
-This library is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
+See L<Moose/BUGS> for details on reporting bugs.
=cut
projects / gitmo/Moose.git / blobdiff