class Metamodel::ParametricRoleGroupHOW
    does Metamodel::Naming
    does Metamodel::Documenting
    does Metamodel::Stashing
    does Metamodel::TypePretense
    does Metamodel::RolePunning
    does Metamodel::BoolificationProtocol {}

A ParametricRoleGroupHOW groups a set of ParametricRoleHOW, every one of them representing a single role declaration with their own parameter sets.

(role Zape[::T] {}).HOW.say; # OUTPUT: «Perl6::Metamodel::ParametricRoleHOW.new␤» 
Zape.HOW.say ; # OUTPUT: «Perl6::Metamodel::ParametricRoleGroupHOW.new␤» 

ParametricRoleHOWs need to be added to this kind of group:

my \zape := Metamodel::ParametricRoleGroupHOW.new_type( name => "zape");
my \zipi := Metamodel::ParametricRoleHOW.new_type( name => "zipi", group => zape);
say zipi.HOW; # OUTPUT: «Perl6::Metamodel::ParametricRoleHOW.new␤» 

Note: As most of the Metamodel classes, this class is here mainly for illustration purposes and it's not intended for the final user to instantiate.

Type Graph

Routines supplied by role Metamodel::Naming

Metamodel::ParametricRoleGroupHOW does role Metamodel::Naming, which provides the following routines:

(Metamodel::Naming) method name

method name($type)

Returns the name of the metaobject, if any.

say 42.^name;       # OUTPUT: «Int␤»

(Metamodel::Naming) method set_name

method set_name($type, $new_name)

Sets the new name of the metaobject.