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From: Helmut Brandl <helmut.brandl@gmx.net>
To: caml users <caml-list@inria.fr>
Subject: [Caml-list] Are there Haskell type families in camp
Date: Sat, 18 Jul 2020 11:55:13 -0500
Message-ID: <3F5C5F7E-A102-4830-8833-9CDE30E4D8FB@gmx.net> (raw)

Hi List,

I was studying the possibilities of GADTs to emulate dependently typed language features. I basically found that Ocaml and Haskell have rather similar possibilities to define types indexed by types (i.e. GADTs).

The singleton types are rather equivalent as well. I.e. I can have a runtime representation of a type to make runtime decisions.

However I have found no equivalent of Haskell’s type families in Ocaml. My question: Is there a way to use singleton types to do type computation in Ocaml?

Thanks for any hint.

— Helmut

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