Ooh that is a really nice syntax. And it would definitely work as it is essentially: m(pattern)(lambda v: ...) Design would be to consider the execution o

Ooh that is a really nice syntax. And it would definitely work as it is essentially: m(pattern)(lambda v: ...) Design would be to consider the execution of the match and dispatch as a “cleanup” of the specification created in the block. Which makes a ton of sense in a weird way. May end up using this, or one of us should send a PR to the OP!