Hopefully you saw Liz's comment. Raku has a zero cost way to add arbitrary post processing that kicks in no matter where or how a block of code exits. This pr

Hopefully you saw Liz's comment. Raku has a zero cost way to add arbitrary post processing that kicks in no matter where or how a block of code exits. This provides a general mechanism accessible by arbitrary user defined control flow related constructs. Raku also ships with a dozen or so built in constructs such as PRE and POST blocks that are the foundational elements for DbC, plus UNDO and KEEP blocks for transactional semantics, and so on.