role Metamodel::AttributeContainer

Metaobject that can hold attributes

role Metamodel::AttributeContainer {}

Classes, roles and grammars can have attributes. Storage and introspection of attributes is implemented by this role.

Methods

method add_attribute

method add_attribute(Metamodel::AttributeContainer: $obj$name$attribute)

Adds an attribute. $attribute must be an object that supports the methods name, type and package, which are called without arguments. It can for example be of type Attribute.

method attributes

method attributes(Metamodel::AttributeContainer: $obj)

Returns a list of attributes. For most Perl 6 types, these will be objects of type Attribute.

method set_rw

method set_rw(Metamodel::AttributeContainer: $obj)

Marks a type whose attributes default to having a write accessor. For example in

class Point is rw {
    has $.x;
    has $.y;
}

The is rw trait on the class calls the set_rw method on the meta class, making all the attributes implicitly writable, so that you can write;

my $p = Point.new(x => 1=> 2);
    $p.x = 42;

method rw

method rw(Metamodel::AttributeContainer: $obj)

Returns a true value if method set_rw has been called on this object, that is, if new public attributes are writable by default.

Type graph

Type relations for Metamodel::AttributeContainer
perl6-type-graph Metamodel::AttributeContainer Metamodel::AttributeContainer Mu Mu Any Any Any->Mu Metamodel::Naming Metamodel::Naming Metamodel::Documenting Metamodel::Documenting Metamodel::Versioning Metamodel::Versioning Metamodel::Stashing Metamodel::Stashing Metamodel::Finalization Metamodel::Finalization Metamodel::MethodContainer Metamodel::MethodContainer Metamodel::PrivateMethodContainer Metamodel::PrivateMethodContainer Metamodel::MultiMethodContainer Metamodel::MultiMethodContainer Metamodel::RoleContainer Metamodel::RoleContainer Metamodel::MultipleInheritance Metamodel::MultipleInheritance Metamodel::DefaultParent Metamodel::DefaultParent Metamodel::C3MRO Metamodel::C3MRO Metamodel::MROBasedMethodDispatch Metamodel::MROBasedMethodDispatch Metamodel::MROBasedTypeChecking Metamodel::MROBasedTypeChecking Metamodel::Trusting Metamodel::Trusting Metamodel::BUILDPLAN Metamodel::BUILDPLAN Metamodel::Mixins Metamodel::Mixins Metamodel::BoolificationProtocol Metamodel::BoolificationProtocol Metamodel::ClassHOW Metamodel::ClassHOW Metamodel::ClassHOW->Metamodel::AttributeContainer Metamodel::ClassHOW->Any Metamodel::ClassHOW->Metamodel::Naming Metamodel::ClassHOW->Metamodel::Documenting Metamodel::ClassHOW->Metamodel::Versioning Metamodel::ClassHOW->Metamodel::Stashing Metamodel::ClassHOW->Metamodel::Finalization Metamodel::ClassHOW->Metamodel::MethodContainer Metamodel::ClassHOW->Metamodel::PrivateMethodContainer Metamodel::ClassHOW->Metamodel::MultiMethodContainer Metamodel::ClassHOW->Metamodel::RoleContainer Metamodel::ClassHOW->Metamodel::MultipleInheritance Metamodel::ClassHOW->Metamodel::DefaultParent Metamodel::ClassHOW->Metamodel::C3MRO Metamodel::ClassHOW->Metamodel::MROBasedMethodDispatch Metamodel::ClassHOW->Metamodel::MROBasedTypeChecking Metamodel::ClassHOW->Metamodel::Trusting Metamodel::ClassHOW->Metamodel::BUILDPLAN Metamodel::ClassHOW->Metamodel::Mixins Metamodel::ClassHOW->Metamodel::BoolificationProtocol Metamodel::ConcreteRoleHOW Metamodel::ConcreteRoleHOW Metamodel::ConcreteRoleHOW->Metamodel::AttributeContainer Metamodel::ConcreteRoleHOW->Any Metamodel::ConcreteRoleHOW->Metamodel::Naming Metamodel::ConcreteRoleHOW->Metamodel::Versioning Metamodel::ConcreteRoleHOW->Metamodel::MethodContainer Metamodel::ConcreteRoleHOW->Metamodel::PrivateMethodContainer Metamodel::ConcreteRoleHOW->Metamodel::MultiMethodContainer Metamodel::ConcreteRoleHOW->Metamodel::RoleContainer Metamodel::ConcreteRoleHOW->Metamodel::MultipleInheritance Metamodel::BaseType Metamodel::BaseType Metamodel::EnumHOW Metamodel::EnumHOW Metamodel::EnumHOW->Metamodel::AttributeContainer Metamodel::EnumHOW->Any Metamodel::EnumHOW->Metamodel::Naming Metamodel::EnumHOW->Metamodel::Stashing Metamodel::EnumHOW->Metamodel::MethodContainer Metamodel::EnumHOW->Metamodel::MultiMethodContainer Metamodel::EnumHOW->Metamodel::RoleContainer Metamodel::EnumHOW->Metamodel::MROBasedMethodDispatch Metamodel::EnumHOW->Metamodel::MROBasedTypeChecking Metamodel::EnumHOW->Metamodel::BUILDPLAN Metamodel::EnumHOW->Metamodel::BoolificationProtocol Metamodel::EnumHOW->Metamodel::BaseType Metamodel::TypePretense Metamodel::TypePretense Metamodel::RolePunning Metamodel::RolePunning Metamodel::ParametricRoleHOW Metamodel::ParametricRoleHOW Metamodel::ParametricRoleHOW->Metamodel::AttributeContainer Metamodel::ParametricRoleHOW->Any Metamodel::ParametricRoleHOW->Metamodel::Naming Metamodel::ParametricRoleHOW->Metamodel::Documenting Metamodel::ParametricRoleHOW->Metamodel::Versioning Metamodel::ParametricRoleHOW->Metamodel::Stashing Metamodel::ParametricRoleHOW->Metamodel::MethodContainer Metamodel::ParametricRoleHOW->Metamodel::PrivateMethodContainer Metamodel::ParametricRoleHOW->Metamodel::MultiMethodContainer Metamodel::ParametricRoleHOW->Metamodel::RoleContainer Metamodel::ParametricRoleHOW->Metamodel::MultipleInheritance Metamodel::ParametricRoleHOW->Metamodel::TypePretense Metamodel::ParametricRoleHOW->Metamodel::RolePunning

Stand-alone image: vector