NAME

Mouse::Meta::Attribute - attribute metaclass

METHODS

new %args -> Mouse::Meta::Attribute

Instantiates a new Mouse::Meta::Attribute. Does nothing else.

create OwnerClass, AttributeName, %args -> Mouse::Meta::Attribute

Creates a new attribute in OwnerClass. Accessors and helper methods are installed. Some error checking is done.

name -> AttributeName

associated_class -> OwnerClass

is_required -> Bool

default -> Item

has_default -> Bool

is_lazy -> Bool

predicate -> MethodName | Undef

has_predicate -> Bool

clearer -> MethodName | Undef

has_clearer -> Bool

handles -> { LocalName => RemoteName }

has_handles -> Bool

is_weak_ref -> Bool

init_arg -> Str

type_constraint -> Str

has_type_constraint -> Bool

trigger => CODE | Undef

has_trigger -> Bool

builder => MethodName | Undef

has_builder -> Bool

is_lazy_build => Bool

should_auto_deref -> Bool

Informational methods.

generate_accessor -> CODE

Creates a new code reference for the attribute's accessor.

generate_predicate -> CODE

Creates a new code reference for the attribute's predicate.

generate_clearer -> CODE

Creates a new code reference for the attribute's clearer.

generate_handles -> { MethodName => CODE }

Creates a new code reference for each of the attribute's handles methods.

verify_against_type_constraint Item -> 1 | ERROR

Checks that the given value passes this attribute's type constraint. Returns 1 on success, otherwise confesses.

canonicalize_args Name, %args -> %args

Canonicalizes some arguments to create. In particular, lazy_build is canonicalized into lazy, builder, etc.

validate_args Name, \%args -> 1 | ERROR

Checks that the arguments to create the attribute (ie those specified by has) are valid.

clone_parent OwnerClass, AttributeName, %args -> Mouse::Meta::Attribute

Creates a new attribute in OwnerClass, inheriting options from parent classes. Accessors and helper methods are installed. Some error checking is done.

get_parent_args OwnerClass, AttributeName -> Hash

Returns the options that the parent class of OwnerClass used for attribute AttributeName.

cpanm Mouse

perl -MCPAN -e shell
install Mouse