role Metamodel::PrivateMethodContainer { ... }

Warning: this role is part of the Rakudo implementation, and is not a part of the Raku language specification.

In Raku, classes, roles and grammars can have private methods, that is, methods that are only callable from within it, and are not inherited by types derived by inheritance.

class A {
    # the ! declares a private method 
    method !double($x) {
        say 2 * $x;
    }
    method call-double($y) {
        # call with ! instead of . 
        self!double($y);
    }
}

For the purposes of dispatching and scoping, private methods are closer to subroutines than to methods. However they share access to self and attributes with methods.

Methods

method add_private_method

method add_private_method($obj, $name, $code)

Adds a private method $code with name $name.

method private_method_table

method private_method_table($obj)

Returns a hash of name => &method_object

method private_methods

method private_methods($obj)

Returns a list of private method names.

method private_method_names

method private_method_names($obj)

Alias to private_methods.

method find_private_method

method find_private_method($obj, $name)

Locates a private method. Otherwise, returns Mu if it doesn't exist.