role Metamodel::AttributeContainer { }
Classes, roles and grammars can have attributes. Storage and introspection of attributes is implemented by this role.
method add_attribute ( Metamodel :: AttributeContainer : $ obj , $ 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 ( Metamodel :: AttributeContainer : $ obj )
Returns a list of attributes. For most Perl 6 types, these will be objects of type Attribute .
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 metaclass, making all the attributes implicitly writable, so that you can write;
my $ p = Point . new ( x => 1 , y => 2 );
$ p . x = 42 ;
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 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::MethodContainer
Metamodel::MethodContainer
Metamodel::PrivateMethodContainer
Metamodel::PrivateMethodContainer
Metamodel::MultiMethodContainer
Metamodel::MultiMethodContainer
Metamodel::RoleContainer
Metamodel::RoleContainer
Metamodel::MultipleInheritance
Metamodel::MultipleInheritance
Metamodel::Stashing
Metamodel::Stashing
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::MethodContainer
Metamodel::ParametricRoleHOW->Metamodel::PrivateMethodContainer
Metamodel::ParametricRoleHOW->Metamodel::MultiMethodContainer
Metamodel::ParametricRoleHOW->Metamodel::RoleContainer
Metamodel::ParametricRoleHOW->Metamodel::MultipleInheritance
Metamodel::ParametricRoleHOW->Metamodel::Stashing
Metamodel::ParametricRoleHOW->Metamodel::TypePretense
Metamodel::ParametricRoleHOW->Metamodel::RolePunning
Metamodel::BaseType
Metamodel::BaseType
Metamodel::MROBasedMethodDispatch
Metamodel::MROBasedMethodDispatch
Metamodel::MROBasedTypeChecking
Metamodel::MROBasedTypeChecking
Metamodel::BUILDPLAN
Metamodel::BUILDPLAN
Metamodel::BoolificationProtocol
Metamodel::BoolificationProtocol
Metamodel::EnumHOW
Metamodel::EnumHOW
Metamodel::EnumHOW->Metamodel::AttributeContainer
Metamodel::EnumHOW->Any
Metamodel::EnumHOW->Metamodel::Naming
Metamodel::EnumHOW->Metamodel::MethodContainer
Metamodel::EnumHOW->Metamodel::MultiMethodContainer
Metamodel::EnumHOW->Metamodel::RoleContainer
Metamodel::EnumHOW->Metamodel::Stashing
Metamodel::EnumHOW->Metamodel::BaseType
Metamodel::EnumHOW->Metamodel::MROBasedMethodDispatch
Metamodel::EnumHOW->Metamodel::MROBasedTypeChecking
Metamodel::EnumHOW->Metamodel::BUILDPLAN
Metamodel::EnumHOW->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::Finalization
Metamodel::Finalization
Metamodel::DefaultParent
Metamodel::DefaultParent
Metamodel::C3MRO
Metamodel::C3MRO
Metamodel::Trusting
Metamodel::Trusting
Metamodel::Mixins
Metamodel::Mixins
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::MethodContainer
Metamodel::ClassHOW->Metamodel::PrivateMethodContainer
Metamodel::ClassHOW->Metamodel::MultiMethodContainer
Metamodel::ClassHOW->Metamodel::RoleContainer
Metamodel::ClassHOW->Metamodel::MultipleInheritance
Metamodel::ClassHOW->Metamodel::Stashing
Metamodel::ClassHOW->Metamodel::MROBasedMethodDispatch
Metamodel::ClassHOW->Metamodel::MROBasedTypeChecking
Metamodel::ClassHOW->Metamodel::BUILDPLAN
Metamodel::ClassHOW->Metamodel::BoolificationProtocol
Metamodel::ClassHOW->Metamodel::Finalization
Metamodel::ClassHOW->Metamodel::DefaultParent
Metamodel::ClassHOW->Metamodel::C3MRO
Metamodel::ClassHOW->Metamodel::Trusting
Metamodel::ClassHOW->Metamodel::Mixins
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