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thesztoday at 2:04 PM1 replyview on HN

  > I have been writing a library called "assume" where you can specify a type signature, give it a prompt, and it generates a function on the fly in the background with Claude Code, so you still write some code, but whenever you need a function you "assume" that such a function exists.
This is very much like good old djinn [1], which would generate code from Haskell type specification.

[1] https://mail.haskell.org/pipermail/haskell/2005-December/017...

And this is why I boldly compare current LLM craze to the much less hyped craze of strong type systems. I was a part of that strong type system discussion, advocating for them. ;)


Replies

tomberttoday at 5:58 PM

You don't have to convince me.

LLMs are neat, code generation is neat, but I do wish that people had learned type theory and instead used those.

I'm not aware of djinn, but I do remember the "Type Driven Development" that Idris had that I thought was absurdly cool; when you make the type specification clear enough, there ends up being basically exactly one reasonable way of writing the code, in which case it can just be "deduced" by machinery.

I'm a huge advocate for formal methods, and it does sort of bother me that pretty much all work on that seems to have been refocused on AI.