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