Documentation for method
CALL-ME assembled from the following types:
method CALL-ME(Callable : |arguments)
This method is required for postfix:«( )» and postfix:«.( )». It's what makes an object actually call-able and needs to be overloaded to let a given object act like a routine. If the object needs to be stored in a
&-sigiled container, is has to implement Callable.
does Callablemy = A;say a(); # OUTPUT: «called␤»
Callable role is not a requirement to make an object callable; if a class simply wants to add subroutine-like semantics in a regular scalar container, the submethod
CALL-ME can be used for that.
my = A.new: values => [4,5,6,7]say (2); # OUTPUT: «6␤»
multi method CALL-ME(|)
Enumeration instance given an enum value.
( mg => 1/1000, g => 1/1, kg => 1000/1 );say Mass(1/1000); # OUTPUT: mg