- NAME
- VERSION
- SYNOPSIS
- DESCRIPTION
- EXPORTED FUNCTIONS
find_meta($class_or_obj)is_role($package_or_obj)- does_role($class_or_obj, $role_or_obj)
- search_class_by_role($class_or_obj, $role_or_obj)
- apply_all_roles($applicant, @roles)
- ensure_all_roles($applicant, @roles)
- with_traits($class_name, @role_names)
- get_all_attribute_values($meta, $instance)
- get_all_init_args($meta, $instance)
- resolve_metaclass_alias($category, $name, %options)
- resolve_metatrait_alias($category, $name, %options)
- meta_class_alias($to[, $from])
- meta_attribute_alias($to[, $from])
english_list(@items)- throw_exception( $class_name, %arguments_to_exception)
- TODO
- BUGS
- AUTHORS
- COPYRIGHT AND LICENSE
Moose::Util - Utilities for working with Moose classes
version 2.2201
use Moose::Util qw/find_meta does_role search_class_by_role/;
my $meta = find_meta($object) || die "No metaclass found";
if (does_role($object, $role)) {
print "The object can do $role!\n";
}
my $class = search_class_by_role($object, 'FooRole');
print "Nearest class with 'FooRole' is $class\n";
This module provides a set of utility functions. Many of these
functions are intended for use in Moose itself or MooseX modules, but
some of them may be useful for use in your own code.
This method takes a class name or object and attempts to find a
metaclass for the class, if one exists. It will not create one if it
does not yet exist.
Returns true if the provided package name or object is a the Moose::Role manpage.
Returns true if $class_or_obj does the given $role_or_obj. The role can
be provided as a name or a the Moose::Meta::Role manpage object.
The class must already have a metaclass for this to work. If it doesn't, this
function simply returns false.
Returns the first class in the class's precedence list that does
$role_or_obj, if any. The role can be either a name or a
the Moose::Meta::Role manpage object.
The class must already have a metaclass for this to work.
This function applies one or more roles to the given $applicant. The
applicant can be a role name, class name, or object.
The $applicant must already have a metaclass object.
The list of @roles should a list of names or the Moose::Meta::Role manpage objects,
each of which can be followed by an optional hash reference of options
(-excludes and -alias).
This function is similar to apply_all_roles, but only applies roles that
$applicant does not already consume.
This function creates a new class from $class_name with each of
@role_names applied. It returns the name of the new class.
Returns a hash reference containing all of the $instance's
attributes. The keys are attribute names.
Returns a hash reference containing all of the init_arg values for
the instance's attributes. The values are the associated attribute
values. If an attribute does not have a defined init_arg, it is
skipped.
This could be useful in cloning an object.
Resolves a short name to a full class name. Short names are often used
when specifying the metaclass or traits option for an attribute:
has foo => (
metaclass => "Bar",
);
The name resolution mechanism is covered in
Moose/Metaclass and Trait Name Resolution.
Create an alias from the class $from (or the current package, if
$from is unspecified), so that
Moose/Metaclass and Trait Name Resolution works properly.
Given a list of scalars, turns them into a proper list in English
(``one and two'', ``one, two, three, and four''). This is used to help us
make nicer error messages.
Calls die with an object of Moose::Exception::$class_name, with
%arguments_to_exception passed as arguments.
Here is a list of possible functions to write
- discovering original method from modified method
-
- search for origin class of a method or attribute
-
See Moose/BUGS for details on reporting bugs.
This software is copyright (c) 2006 by Infinity Interactive, Inc.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
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