Re: [Caml-list] using infix operators/functions in modules when not using "open"

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Article #146

#146

From: Goswin von Brederlow
Date: Fri, 27 Apr 2012 08:30

33 lines
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Gabriel Scherer <gabriel.scherer@gmail.com> writes:

>> Module.("foo" (op) "bar")
>
> This is a local open (a more explicit notation is "let open Module in
> foo op bar"). I think this is a fine solution: I don't like open, but
> local mitigates its flaws.
>
> Another solution is to rebind your operator locally:
>
>   let (op) = Module.blah in
>   "foo" op "bar"
>
> (of course Module.blah doesn't need to be an infix itself)
>
> If you are going to use an infix operator in a wide scope, I think
> that such a rebinding solution is nice because it's more explicit,
> which is good when it helps users understand the code.

And that also works more globally as in

let (op) = Module.blah

let foo x y = x (op) y

MfG
        Goswin

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From: Goswin von Brederlow <goswin-v-b@web.de>
Newsgroups: fa.caml
Subject: Re: [Caml-list] using infix operators/functions in modules when not using "open"
Date: Fri, 27 Apr 2012 08:30:48 UTC
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