package Mouse::Util;
use Mouse::Exporter; # enables strict and warnings
-use Carp qw(confess);
-use Scalar::Util qw(blessed);
-use B ();
+sub get_linear_isa($;$); # must be here
-use constant _MOUSE_VERBOSE => !!$ENV{MOUSE_VERBOSE};
+BEGIN{
+ # This is used in Mouse::PurePerl
+ Mouse::Exporter->setup_import_methods(
+ as_is => [qw(
+ find_meta
+ does_role
+ resolve_metaclass_alias
+ apply_all_roles
+ english_list
+
+ load_class
+ is_class_loaded
+
+ get_linear_isa
+ get_code_info
+
+ get_code_package
+ get_code_ref
+
+ not_supported
+
+ does meta dump
+ )],
+ groups => {
+ default => [], # export no functions by default
+
+ # The ':meta' group is 'use metaclass' for Mouse
+ meta => [qw(does meta dump)],
+ },
+ );
+
+
+ # Because Mouse::Util is loaded first in all the Mouse sub-modules,
+ # XS loader is placed here, not in Mouse.pm.
+
+ our $VERSION = '0.40_08';
+
+ my $xs = !(exists $INC{'Mouse/PurePerl.pm'} || $ENV{MOUSE_PUREPERL});
-Mouse::Exporter->setup_import_methods(
- as_is => [qw(
- find_meta
- does_role
- resolve_metaclass_alias
- apply_all_roles
- english_list
+ if($xs){
+ local $@;
+
+ # XXX: XSLoader tries to get the object path from caller's file name
+ # $hack_mouse_file fools its mechanism
+
+ (my $hack_mouse_file = __FILE__) =~ s/.Util//; # .../Mouse/Util.pm -> .../Mouse.pm
+ $xs = eval sprintf("#line %d %s\n", __LINE__, $hack_mouse_file) . q{
+ require XSLoader;
+ XSLoader::load('Mouse', $VERSION);
+
+ *Mouse::Meta::Method::Constructor::XS::meta = \&meta;
+ *Mouse::Meta::Method::Destructor::XS::meta = \&meta;
+ };
+ #warn $@ if $@;
+ }
- load_class
- is_class_loaded
+ if(!$xs){
+ require 'Mouse/PurePerl.pm'; # we don't want to create its namespace
+ }
- get_linear_isa
- get_code_info
+ *MOUSE_XS = sub(){ $xs };
+}
- get_code_package
- not_supported
+use Carp ();
+use Scalar::Util ();
- does meta dump
- _MOUSE_VERBOSE
- )],
- groups => {
- default => [], # export no functions by default
- meta => [qw(does meta dump _MOUSE_VERBOSE)],
- },
- _export_to_main => 1,
-);
+use constant _MOUSE_VERBOSE => !!$ENV{MOUSE_VERBOSE};
# aliases as public APIs
# it must be 'require', not 'use', because Mouse::Meta::Module depends on Mouse::Util
require Mouse::Meta::Module; # for the entities of metaclass cache utilities
BEGIN {
- *class_of = \&Mouse::Meta::Module::class_of;
- *get_metaclass_by_name = \&Mouse::Meta::Module::get_metaclass_by_name;
- *get_all_metaclass_instances = \&Mouse::Meta::Module::get_all_metaclass_instances;
- *get_all_metaclass_names = \&Mouse::Meta::Module::get_all_metaclass_names;
+ *class_of = \&Mouse::Meta::Module::_class_of;
+ *get_metaclass_by_name = \&Mouse::Meta::Module::_get_metaclass_by_name;
+ *get_all_metaclass_instances = \&Mouse::Meta::Module::_get_all_metaclass_instances;
+ *get_all_metaclass_names = \&Mouse::Meta::Module::_get_all_metaclass_names;
+
+ # is-a predicates
+ generate_isa_predicate_for('Mouse::Meta::TypeConstraint' => 'is_a_type_constraint');
+ generate_isa_predicate_for('Mouse::Meta::Class' => 'is_a_metaclass');
+ generate_isa_predicate_for('Mouse::Meta::Role' => 'is_a_metarole');
}
+our $in_global_destruction = 0;
+END{ $in_global_destruction = 1 }
+
# Moose::Util compatible utilities
sub find_meta{
}
BEGIN {
- my $impl;
+ my $get_linear_isa;
if ($] >= 5.009_005) {
require mro;
- $impl = \&mro::get_linear_isa;
+ $get_linear_isa = \&mro::get_linear_isa;
} else {
my $e = do {
local $@;
$@;
};
if (!$e) {
- $impl = \&mro::get_linear_isa;
+ $get_linear_isa = \&mro::get_linear_isa;
} else {
# VVVVV CODE TAKEN FROM MRO::COMPAT VVVVV
my $_get_linear_isa_dfs; # this recurses so it isn't pretty
- $_get_linear_isa_dfs = sub {
+ $_get_linear_isa_dfs = sub ($;$){
no strict 'refs';
my $classname = shift;
return \@lin;
};
# ^^^^^ CODE TAKEN FROM MRO::COMPAT ^^^^^
- $impl = $_get_linear_isa_dfs;
+ $get_linear_isa = $_get_linear_isa_dfs;
}
}
-
- no warnings 'once';
- *get_linear_isa = $impl;
+ *get_linear_isa = $get_linear_isa;
}
-{ # taken from Sub::Identify
- sub get_code_info($) {
- my ($coderef) = @_;
- ref($coderef) or return;
-
- my $cv = B::svref_2object($coderef);
- $cv->isa('B::CV') or return;
-
- my $gv = $cv->GV;
- $gv->isa('B::GV') or return;
-
- return ($gv->STASH->NAME, $gv->NAME);
- }
-
- sub get_code_package{
- my($coderef) = @_;
-
- my $cv = B::svref_2object($coderef);
- $cv->isa('B::CV') or return '';
-
- my $gv = $cv->GV;
- $gv->isa('B::GV') or return '';
-
- return $gv->STASH->NAME;
- }
-}
# taken from Mouse::Util (0.90)
{
# Utilities from Class::MOP
+sub get_code_info;
+sub get_code_package;
# taken from Class/MOP.pm
sub is_valid_class_name {
return 0 if ref($class);
return 0 unless defined($class);
- return 1 if $class =~ /^\w+(?:::\w+)*$/;
+ return 1 if $class =~ /\A \w+ (?: :: \w+ )* \z/xms;
return 0;
}
}
# not found
- confess join(
+ Carp::confess join(
"\n",
map {
sprintf( "Could not load class (%s) because : %s",
unless ( is_valid_class_name($class) ) {
my $display = defined($class) ? $class : 'undef';
- confess "Invalid class name ($display)";
+ Carp::confess "Invalid class name ($display)";
}
return undef if $is_class_loaded_cache{$class} ||= is_class_loaded($class);
sub load_class {
my $class = shift;
my $e = _try_load_one_class($class);
- confess "Could not load class ($class) because : $e" if $e;
+ Carp::confess "Could not load class ($class) because : $e" if $e;
return 1;
}
-
-sub is_class_loaded {
- my $class = shift;
-
- return 0 if ref($class) || !defined($class) || !length($class);
-
- # walk the symbol table tree to avoid autovififying
- # \*{${main::}{"Foo::"}} == \*main::Foo::
-
- my $pack = \%::;
- foreach my $part (split('::', $class)) {
- my $entry = \$pack->{$part . '::'};
- return 0 if ref($entry) ne 'GLOB';
- $pack = *{$entry}{HASH} or return 0;
- }
-
- # check for $VERSION or @ISA
- return 1 if exists $pack->{VERSION}
- && defined *{$pack->{VERSION}}{SCALAR} && defined ${ $pack->{VERSION} };
- return 1 if exists $pack->{ISA}
- && defined *{$pack->{ISA}}{ARRAY} && @{ $pack->{ISA} } != 0;
-
- # check for any method
- foreach my $name( keys %{$pack} ) {
- my $entry = \$pack->{$name};
- return 1 if ref($entry) ne 'GLOB' || defined *{$entry}{CODE};
- }
-
- # fail
- return 0;
-}
+sub is_class_loaded;
sub apply_all_roles {
- my $applicant = blessed($_[0]) ? shift : Mouse::Meta::Class->initialize(shift);
+ my $applicant = Scalar::Util::blessed($_[0])
+ ? shift # instance
+ : Mouse::Meta::Class->initialize(shift); # class or role name
my @roles;
}
my $role_name = $roles[-1][0];
load_class($role_name);
- my $metarole = get_metaclass_by_name($role_name);
- ( $metarole && $metarole->isa('Mouse::Meta::Role') )
- || $applicant->meta->throw_error("You can only consume roles, $role_name(".$role_name->meta.") is not a Mouse role");
+
+ is_a_metarole( get_metaclass_by_name($role_name) )
+ || $applicant->meta->throw_error("You can only consume roles, $role_name is not a Mouse role");
}
if ( scalar @roles == 1 ) {
Carp::confess("Mouse does not currently support $feature");
}
-sub meta{
+# general meta() method
+sub meta :method{
return Mouse::Meta::Class->initialize(ref($_[0]) || $_[0]);
}
-sub dump {
+# general dump() method
+sub dump :method {
my($self, $maxdepth) = @_;
require 'Data/Dumper.pm'; # we don't want to create its namespace
return $dd->Dump();
}
+# general does() method
sub does :method;
*does = \&does_role; # alias
Mouse::Util - Features, with or without their dependencies
+=head1 VERSION
+
+This document describes Mouse version 0.40_08
+
=head1 IMPLEMENTATIONS FOR
=head2 Moose::Util
projects / gitmo/Mouse.git / blobdiff