Method Lookup and Inheritance

Method lookup

Given a blessed reference, a method call of the form shown below looks up the name of the class associated with the blessed reference $joel—in this case, Player.

Next, Perl looks for a function named number() in Player. (Remember that Perl makes no distinction between functions in a namespace and methods.) If no such function exists and if Player extends a parent class, Perl looks in the parent class (and so on and so on) until it finds a number(). If Perl finds a number(), it calls that method with $joel as an invocant. We’ve seen this before with Moose; it works the same way here.

Note: The namespace::autoclean CPAN module can help avoid unintentional collisions between imported functions and methods.

Inheritance relationships

Moose provides ...