Functors in separate files in OCaml?

functor, ocaml

Solution

It is not possible. Source files are always represented as ordinary modules, not functors. This is trivially solved with one extra open.

Problem

I want to have a big functor Hello(Blah: Blah_type) and save it in the file hello.ml, but how do I do this? If I was just in my top level file, I'd have module Hello(Blah: Blah_type) = struct val x = 2 end but how do I put the argument in hello.ml? I can't just have the whole file being "val x = 2" ... ?

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