Metamodel::Finalization Reference

Metaobject supporting object finalization

What it is #

Position in the hierarchy #

Routines #

Signatures are reproduced from the documentation, including their declared return types. A routine listed here is part of the type's published interface; whether Raku++ implements it is a separate question, answered by the examples below.

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 List:D.

Returns a list of all finalization methods.

Examples, run three ways #

Every example below comes from the official documentation, together with the output that documentation asserts. Each was then executed by Rakudo and by Raku++ when this page was built. Where the three agree, one result is shown; where they do not, all three are — because which of them is wrong is exactly the information worth having.

1 no-output

role Metamodel::Finalization { ... }