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by Sonata 1620 days ago
Interesting. I'm not aware of any other lazy dynamic languages. I would assume it is difficult to optimise such a combination.
2 comments

Indeed, these languages are descendants of ISWIM by Peter Landin.

ISWIM also inspired Lucid, so I guess PyFL would be a nephew of SASL in that case.

ISWIM isn't lazy, I think, nor fully functional.
Right, but it’s still the root of the functional branch of the PL family tree. ISWIM to ML is mostly a matter of removing the few imperative features from ISWIM. Once you do that, lazy execution comes naturally.
Clojure? It's not purely lazy, but with liberal use of `seq`s it pretty much is.