use MRO::Compat;
use Carp 'confess';
-use Devel::GlobalDestruction qw( in_global_destruction );
use Scalar::Util 'weaken', 'reftype', 'blessed';
-use Sub::Name qw( subname );
+use Try::Tiny;
+use Class::MOP::Mixin::AttributeCore;
+use Class::MOP::Mixin::HasAttributes;
+use Class::MOP::Mixin::HasMethods;
use Class::MOP::Class;
use Class::MOP::Attribute;
use Class::MOP::Method;
-use Class::MOP::Immutable;
-
BEGIN {
- *IS_RUNNING_ON_5_10 = ($] < 5.009_005)
+ *IS_RUNNING_ON_5_10 = ($] < 5.009_005)
? sub () { 0 }
- : sub () { 1 };
-
- sub HAVE_ISAREV () {
- warn "Class::MOP::HAVE_ISAREV is deprecated and will be removed in a future release. It has always returned 1 anyway.";
- return 1;
- }
+ : sub () { 1 };
# this is either part of core or set up appropriately by MRO::Compat
*check_package_cache_flag = \&mro::get_pkg_gen;
}
-our $VERSION = '0.80';
+our $VERSION = '0.97_01';
our $XS_VERSION = $VERSION;
$VERSION = eval $VERSION;
-our $AUTHORITY = 'cpan:STEVAN';
+our $AUTHORITY = 'cpan:STEVAN';
require XSLoader;
XSLoader::load( __PACKAGE__, $XS_VERSION );
# there is no need to worry about destruction though
# because they should die only when the program dies.
# After all, do package definitions even get reaped?
+ # Anonymous classes manage their own destruction.
my %METAS;
- # means of accessing all the metaclasses that have
- # been initialized thus far (for mugwumps obj browser)
sub get_all_metaclasses { %METAS }
sub get_all_metaclass_instances { values %METAS }
sub get_all_metaclass_names { keys %METAS }
sub store_metaclass_by_name { $METAS{$_[0]} = $_[1] }
sub weaken_metaclass { weaken($METAS{$_[0]}) }
sub does_metaclass_exist { exists $METAS{$_[0]} && defined $METAS{$_[0]} }
- sub remove_metaclass_by_name { $METAS{$_[0]} = undef }
+ sub remove_metaclass_by_name { delete $METAS{$_[0]}; return }
# This handles instances as well as class names
sub class_of {
+ return unless defined $_[0];
my $class = blessed($_[0]) || $_[0];
return $METAS{$class};
}
sub load_first_existing_class {
my @classes = @_
- or return;
+ or return;
foreach my $class (@classes) {
unless ( _is_valid_class_name($class) ) {
my $found;
my %exceptions;
- for my $class (@classes) {
- my $pmfile = _class_to_pmfile($class);
- my $e = _try_load_one_class($class);
- if ($e) {
- $exceptions{$class} = $e;
- last if $e !~ /^Can't locate \Q$pmfile\E in \@INC/;
- }
- else {
- $found = $class;
- last;
- }
- }
+ for my $class (@classes) {
+ my $file = _class_to_pmfile($class);
- return $found if $found;
+ return $class if is_class_loaded($class);;
- confess join(
- "\n",
- map {
- sprintf(
- "Could not load class (%s) because : %s", $_,
- $exceptions{$_}
- )
+ return $class if try {
+ local $SIG{__DIE__};
+ require $file;
+ return 1;
+ }
+ catch {
+ unless (/^Can't locate \Q$file\E in \@INC/) {
+ confess "Couldn't load class ($class) because: $_";
}
- grep {
- exists $exceptions{$_}
- } @classes
- );
-}
-
-sub _try_load_one_class {
- my $class = shift;
- return if is_class_loaded($class);
-
- my $file = _class_to_pmfile($class);
+ return;
+ };
+ }
- return do {
- local $@;
- eval { require($file) };
- $@;
- };
+ if ( @classes > 1 ) {
+ confess "Can't locate any of @classes in \@INC (\@INC contains: @INC).";
+ } else {
+ confess "Can't locate " . _class_to_pmfile($classes[0]) . " in \@INC (\@INC contains: @INC).";
+ }
}
sub load_class {
- my $class = load_first_existing_class($_[0]);
- return get_metaclass_by_name($class) || $class;
+ load_first_existing_class($_[0]);
+
+ # This is done to avoid breaking code which checked the return value. Said
+ # code is dumb. The return value was _always_ true, since it dies on
+ # failure!
+ return 1;
}
sub _is_valid_class_name {
# inherit them using _construct_instance
## --------------------------------------------------------
+## Class::MOP::Mixin::HasMethods
+
+Class::MOP::Mixin::HasMethods->meta->add_attribute(
+ Class::MOP::Attribute->new('_methods' => (
+ reader => {
+ # NOTE:
+ # we just alias the original method
+ # rather than re-produce it here
+ '_full_method_map' => \&Class::MOP::Mixin::HasMethods::_full_method_map
+ },
+ default => sub { {} }
+ ))
+);
+
+Class::MOP::Mixin::HasMethods->meta->add_attribute(
+ Class::MOP::Attribute->new('method_metaclass' => (
+ reader => {
+ # NOTE:
+ # we just alias the original method
+ # rather than re-produce it here
+ 'method_metaclass' => \&Class::MOP::Mixin::HasMethods::method_metaclass
+ },
+ default => 'Class::MOP::Method',
+ ))
+);
+
+Class::MOP::Mixin::HasMethods->meta->add_attribute(
+ Class::MOP::Attribute->new('wrapped_method_metaclass' => (
+ reader => {
+ # NOTE:
+ # we just alias the original method
+ # rather than re-produce it here
+ 'wrapped_method_metaclass' => \&Class::MOP::Mixin::HasMethods::wrapped_method_metaclass
+ },
+ default => 'Class::MOP::Method::Wrapped',
+ ))
+);
+
+## --------------------------------------------------------
+## Class::MOP::Mixin::HasMethods
+
+Class::MOP::Mixin::HasAttributes->meta->add_attribute(
+ Class::MOP::Attribute->new('attributes' => (
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ #
+ # we just alias the original method
+ # rather than re-produce it here
+ '_attribute_map' => \&Class::MOP::Mixin::HasAttributes::_attribute_map
+ },
+ default => sub { {} }
+ ))
+);
+
+Class::MOP::Mixin::HasAttributes->meta->add_attribute(
+ Class::MOP::Attribute->new('attribute_metaclass' => (
+ reader => {
+ # NOTE:
+ # we just alias the original method
+ # rather than re-produce it here
+ 'attribute_metaclass' => \&Class::MOP::Mixin::HasAttributes::attribute_metaclass
+ },
+ default => 'Class::MOP::Attribute',
+ ))
+);
+
+## --------------------------------------------------------
## Class::MOP::Package
Class::MOP::Package->meta->add_attribute(
## Class::MOP::Class
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('attributes' => (
- reader => {
- # NOTE: we need to do this in order
- # for the instance meta-object to
- # not fall into meta-circular death
- #
- # we just alias the original method
- # rather than re-produce it here
- 'get_attribute_map' => \&Class::MOP::Class::get_attribute_map
- },
- default => sub { {} }
- ))
-);
-
-Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('methods' => (
- reader => {
- # NOTE:
- # we just alias the original method
- # rather than re-produce it here
- 'get_method_map' => \&Class::MOP::Class::get_method_map
- },
- default => sub { {} }
- ))
-);
-
-Class::MOP::Class->meta->add_attribute(
Class::MOP::Attribute->new('superclasses' => (
accessor => {
# NOTE:
);
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('attribute_metaclass' => (
+ Class::MOP::Attribute->new('instance_metaclass' => (
reader => {
- # NOTE:
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ #
# we just alias the original method
# rather than re-produce it here
- 'attribute_metaclass' => \&Class::MOP::Class::attribute_metaclass
+ 'instance_metaclass' => \&Class::MOP::Class::instance_metaclass
},
- default => 'Class::MOP::Attribute',
+ default => 'Class::MOP::Instance',
))
);
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('method_metaclass' => (
+ Class::MOP::Attribute->new('immutable_trait' => (
reader => {
- # NOTE:
- # we just alias the original method
- # rather than re-produce it here
- 'method_metaclass' => \&Class::MOP::Class::method_metaclass
+ 'immutable_trait' => \&Class::MOP::Class::immutable_trait
},
- default => 'Class::MOP::Method',
+ default => "Class::MOP::Class::Immutable::Trait",
))
);
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('wrapped_method_metaclass' => (
+ Class::MOP::Attribute->new('constructor_name' => (
reader => {
- # NOTE:
- # we just alias the original method
- # rather than re-produce it here
- 'wrapped_method_metaclass' => \&Class::MOP::Class::wrapped_method_metaclass
+ 'constructor_name' => \&Class::MOP::Class::constructor_name,
},
- default => 'Class::MOP::Method::Wrapped',
+ default => "new",
))
);
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('instance_metaclass' => (
+ Class::MOP::Attribute->new('constructor_class' => (
reader => {
- # NOTE: we need to do this in order
- # for the instance meta-object to
- # not fall into meta-circular death
- #
- # we just alias the original method
- # rather than re-produce it here
- 'instance_metaclass' => \&Class::MOP::Class::instance_metaclass
+ 'constructor_class' => \&Class::MOP::Class::constructor_class,
},
- default => 'Class::MOP::Instance',
+ default => "Class::MOP::Method::Constructor",
))
);
+
Class::MOP::Class->meta->add_attribute(
- Class::MOP::Attribute->new('immutable_transformer' => (
+ Class::MOP::Attribute->new('destructor_class' => (
reader => {
- 'immutable_transformer' => \&Class::MOP::Class::immutable_transformer
- },
- writer => {
- '_set_immutable_transformer' => \&Class::MOP::Class::_set_immutable_transformer
+ 'destructor_class' => \&Class::MOP::Class::destructor_class,
},
))
);
# _construct_class_instance method.
## --------------------------------------------------------
-## Class::MOP::Attribute
-
-Class::MOP::Attribute->meta->add_attribute(
+## Class::MOP::Mixin::AttributeCore
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('name' => (
reader => {
# NOTE: we need to do this in order
#
# we just alias the original method
# rather than re-produce it here
- 'name' => \&Class::MOP::Attribute::name
+ 'name' => \&Class::MOP::Mixin::AttributeCore::name
}
))
);
-Class::MOP::Attribute->meta->add_attribute(
- Class::MOP::Attribute->new('associated_class' => (
- reader => {
- # NOTE: we need to do this in order
- # for the instance meta-object to
- # not fall into meta-circular death
- #
- # we just alias the original method
- # rather than re-produce it here
- 'associated_class' => \&Class::MOP::Attribute::associated_class
- }
- ))
-);
-
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('accessor' => (
- reader => { 'accessor' => \&Class::MOP::Attribute::accessor },
- predicate => { 'has_accessor' => \&Class::MOP::Attribute::has_accessor },
+ reader => { 'accessor' => \&Class::MOP::Mixin::AttributeCore::accessor },
+ predicate => { 'has_accessor' => \&Class::MOP::Mixin::AttributeCore::has_accessor },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('reader' => (
- reader => { 'reader' => \&Class::MOP::Attribute::reader },
- predicate => { 'has_reader' => \&Class::MOP::Attribute::has_reader },
+ reader => { 'reader' => \&Class::MOP::Mixin::AttributeCore::reader },
+ predicate => { 'has_reader' => \&Class::MOP::Mixin::AttributeCore::has_reader },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('initializer' => (
- reader => { 'initializer' => \&Class::MOP::Attribute::initializer },
- predicate => { 'has_initializer' => \&Class::MOP::Attribute::has_initializer },
+ reader => { 'initializer' => \&Class::MOP::Mixin::AttributeCore::initializer },
+ predicate => { 'has_initializer' => \&Class::MOP::Mixin::AttributeCore::has_initializer },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('definition_context' => (
- reader => { 'definition_context' => \&Class::MOP::Attribute::definition_context },
+ reader => { 'definition_context' => \&Class::MOP::Mixin::AttributeCore::definition_context },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('writer' => (
- reader => { 'writer' => \&Class::MOP::Attribute::writer },
- predicate => { 'has_writer' => \&Class::MOP::Attribute::has_writer },
+ reader => { 'writer' => \&Class::MOP::Mixin::AttributeCore::writer },
+ predicate => { 'has_writer' => \&Class::MOP::Mixin::AttributeCore::has_writer },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('predicate' => (
- reader => { 'predicate' => \&Class::MOP::Attribute::predicate },
- predicate => { 'has_predicate' => \&Class::MOP::Attribute::has_predicate },
+ reader => { 'predicate' => \&Class::MOP::Mixin::AttributeCore::predicate },
+ predicate => { 'has_predicate' => \&Class::MOP::Mixin::AttributeCore::has_predicate },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('clearer' => (
- reader => { 'clearer' => \&Class::MOP::Attribute::clearer },
- predicate => { 'has_clearer' => \&Class::MOP::Attribute::has_clearer },
+ reader => { 'clearer' => \&Class::MOP::Mixin::AttributeCore::clearer },
+ predicate => { 'has_clearer' => \&Class::MOP::Mixin::AttributeCore::has_clearer },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('builder' => (
- reader => { 'builder' => \&Class::MOP::Attribute::builder },
- predicate => { 'has_builder' => \&Class::MOP::Attribute::has_builder },
+ reader => { 'builder' => \&Class::MOP::Mixin::AttributeCore::builder },
+ predicate => { 'has_builder' => \&Class::MOP::Mixin::AttributeCore::has_builder },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('init_arg' => (
- reader => { 'init_arg' => \&Class::MOP::Attribute::init_arg },
- predicate => { 'has_init_arg' => \&Class::MOP::Attribute::has_init_arg },
+ reader => { 'init_arg' => \&Class::MOP::Mixin::AttributeCore::init_arg },
+ predicate => { 'has_init_arg' => \&Class::MOP::Mixin::AttributeCore::has_init_arg },
))
);
-Class::MOP::Attribute->meta->add_attribute(
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
Class::MOP::Attribute->new('default' => (
# default has a custom 'reader' method ...
- predicate => { 'has_default' => \&Class::MOP::Attribute::has_default },
+ predicate => { 'has_default' => \&Class::MOP::Mixin::AttributeCore::has_default },
+ ))
+);
+
+Class::MOP::Mixin::AttributeCore->meta->add_attribute(
+ Class::MOP::Attribute->new('insertion_order' => (
+ reader => { 'insertion_order' => \&Class::MOP::Mixin::AttributeCore::insertion_order },
+ writer => { '_set_insertion_order' => \&Class::MOP::Mixin::AttributeCore::_set_insertion_order },
+ predicate => { 'has_insertion_order' => \&Class::MOP::Mixin::AttributeCore::has_insertion_order },
+ ))
+);
+
+## --------------------------------------------------------
+## Class::MOP::Attribute
+Class::MOP::Attribute->meta->add_attribute(
+ Class::MOP::Attribute->new('associated_class' => (
+ reader => {
+ # NOTE: we need to do this in order
+ # for the instance meta-object to
+ # not fall into meta-circular death
+ #
+ # we just alias the original method
+ # rather than re-produce it here
+ 'associated_class' => \&Class::MOP::Attribute::associated_class
+ }
))
);
))
);
+
+## --------------------------------------------------------
+## Class::MOP::Method::Inlined
+
+Class::MOP::Method::Inlined->meta->add_attribute(
+ Class::MOP::Attribute->new('_expected_method_class' => (
+ reader => { '_expected_method_class' => \&Class::MOP::Method::Inlined::_expected_method_class },
+ ))
+);
+
## --------------------------------------------------------
## Class::MOP::Method::Accessor
),
);
+require Class::MOP::Deprecated unless our $no_deprecated;
# we need the meta instance of the meta instance to be created now, in order
# for the constructor to be able to use it
# the compile time of the MOP, and gives us no actual benefits.
$_->meta->make_immutable(
- inline_constructor => 1,
- replace_constructor => 1,
+ inline_constructor => 0,
constructor_name => "_new",
inline_accessors => 0,
) for qw/
Class::MOP::Object
Class::MOP::Method::Generated
+ Class::MOP::Method::Inlined
Class::MOP::Method::Accessor
Class::MOP::Method::Constructor
Class::MOP::Method::Wrapped
/;
+$_->meta->make_immutable(
+ inline_constructor => 0,
+ constructor_name => undef,
+ inline_accessors => 0,
+) for qw/
+ Class::MOP::Mixin
+ Class::MOP::Mixin::AttributeCore
+ Class::MOP::Mixin::HasAttributes
+ Class::MOP::Mixin::HasMethods
+/;
+
1;
__END__
=item B<Class::MOP::load_class($class_name)>
-This will load the specified C<$class_name>. This function can be used
+This will load the specified C<$class_name>, if it is not already
+loaded (as reported by C<is_class_loaded>). This function can be used
in place of tricks like C<eval "use $module"> or using C<require>
-unconditionally. This will return the metaclass of C<$class_name>.
+unconditionally.
+
+If the module cannot be loaded, an exception is thrown.
+
+For historical reasons, this function explicitly returns a true value.
=item B<Class::MOP::is_class_loaded($class_name)>
This does a basic check of the symbol table to try and determine as
best it can if the C<$class_name> is loaded, it is probably correct
about 99% of the time, but it can be fooled into reporting false
-positives.
+positives. In particular, loading any of the core L<IO> modules will
+cause most of the rest of the core L<IO> modules to falsely report
+having been loaded, due to the way the base L<IO> module works.
=item B<Class::MOP::get_code_info($code)>
=item B<Class::MOP::class_of($instance_or_class_name)>
-This will return the metaclass of the given instance or class name.
-Even if the class lacks a metaclass, no metaclass will be initialized
-and C<undef> will be returned.
+This will return the metaclass of the given instance or class name. If the
+class lacks a metaclass, no metaclass will be initialized, and C<undef> will be
+returned.
=item B<Class::MOP::check_package_cache_flag($pkg)>
=over 4
-=item L<http://svn.openfoundry.org/pugs/perl5/Perl6-MetaModel>
+=item L<http://svn.openfoundry.org/pugs/misc/Perl-MetaModel/>
=item L<http://svn.openfoundry.org/pugs/perl5/Perl6-ObjectSpace>
=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.
+exception.
+
+Please report any bugs to C<bug-class-mop@rt.cpan.org>, or through the
+web interface at L<http://rt.cpan.org>.
+
+You can also discuss feature requests or possible bugs on the Moose
+mailing list (moose@perl.org) or on IRC at
+L<irc://irc.perl.org/#moose>.
=head1 ACKNOWLEDGEMENTS
Guillermo (groditi) Roditi
+Dave (autarch) Rolsky
+
Matt (mst) Trout
Rob (robkinyon) Kinyon
Scott (konobi) McWhirter
+Dylan Hardison
+
=head1 COPYRIGHT AND LICENSE
-Copyright 2006-2009 by Infinity Interactive, Inc.
+Copyright 2006-2010 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
projects / gitmo/Class-MOP.git / blobdiff