T M
role Metamodel::Finalization
Error ReportCollection examples

Metaobject supporting object finalization

role Metamodel::Finalization { ... }

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

This role takes care that DESTROY submethods are called (if they exist) when an object is garbage-collected.

Methods

method setup_finalization

method setup_finalization($obj)

Collects the DESTROY submethods from this class and all its superclasses, and marks the class as needing action on garbage collection.

A metamodel for a kind that implements finalization semantics must call this method at type composition time.

method destroyers

method destroyers($obj --> List:D)

Returns a list of all finalization methods.