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| Date: | -- (:) |
| From: | Sylvain Le Gall <sylvain@l...> |
| Subject: | Re: Generalized Algebraic Datatypes |
On 31-10-2010, Wojciech Daniel Meyer <wojciech.meyer@googlemail.com> wrote: > bluestorm <bluestorm.dylc@gmail.com> writes: > >> It was actually the case in Caml Light : each datatype constructor >> implicitly declared a constructor function with the same name. I >> don't exactly know why this feature was dropped in Objective Caml, >> but I think I remember (from a previous discussion) that people >> weren't sure it was worth the additional complexity. > > Would that be not possible now with Camlp4 extension? > I am pretty sure, it is possible to implement them with camlp4. Just a matter of time -- and motivation. The only limitation I can see, is that the generated constructors won't be capitalized. E.g.: type t = MyConstr | YourConstr of int => type t = MyConstr | YourConstr of int let myConstr = MyConstr let yourConstr i = YouConstr i Regards, Sylvain Le Gall