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Constructors are not functions
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Date: | 2009-10-06 (12:46) |
From: | David Allsopp <dra-news@m...> |
Subject: | RE: [Caml-list] Constructors are not functions |
David Allsopp wrote: > > Is there a reason for constructors not to behave like functions? > > For instance, one cannot make a partial application from a constructor: > > This is how SML handles constructors, Xavier explained the reasons he > chose to depart from this in: > > http://caml.inria.fr/pub/ml-archives/caml- > list/2001/08/47db53a4b42529708647c9e81183598b.en.html > > I think it would be possible to simulate the SML behaviour in OCaml > using camlp4 (if you assume that for [type foo = Bar of int] that > future unbound references to [bar] are interpreted as [fun x -> bar x] > instead of an error) Tsk - [fun x -> bar x] should of course be [fun x -> Bar x]