class X::Role::Initialization

Error due to passing an initialization value to an ineligible role

class X::Role::Initialization is Exception { }

Thrown when the SomeRole($init) syntax is used, but SomeRole does not have exactly one public attribute.

For example:

role R { }; "D2" but R(2)
CATCH { default { put .^name, ': ', .Str } }
# OUTPUT: «X::Role::Initialization: Can only supply an initialization value for a role if it has a single public attribute, but this is not the case for 'R'␤»

Methods

method role

method role()

Returns the role that caused the error.