Anyone who plays around with the Core library that Jane Street just released
can see showcased a rather ugly detail of how Core's design interacts with
how OCaml displays types. Witness:
# Int.of_string;;
- : string -> Core.Std.Int.stringable =
# Float.of_string;;
- : string -> Core_extended.Std
On Fri, Oct 9, 2009 at 3:40 AM, Yaron Minsky wrote:
> Choosing shorter names.
By which you probably mean "the fewest number of dots (module
projections)". It might be a bit annoying if the code that prints
doesn't know what modules are open. What do the INRIA priests say?
Andrej
___
Well, if we're picking heuristics, the fewest number of characters wouldn't
be crazy either. Given the choice between Int.t and Int.comparable (which
are aliases for the same type), I'd prefer to see Int.t.
y
On Fri, Oct 9, 2009 at 3:33 AM, Andrej Bauer wrote:
> On Fri, Oct 9, 2009 at 3:40 AM,
Can't there be a trick by playing with, e.g, ocamlmktop, which could open
Core and its main submodules by default, like it's done with Pervasives and,
IIRC, Batteries ?
On Fri, Oct 9, 2009 at 11:58 AM, Yaron Minsky wrote:
> Well, if we're picking heuristics, the fewest number of characters would
On Fri, Oct 9, 2009 at 6:54 AM, Alp Mestan wrote:
> Can't there be a trick by playing with, e.g, ocamlmktop, which could open
> Core and its main submodules by default, like it's done with Pervasives and,
> IIRC, Batteries ?
>
Maybe. Although to be honest my main concern is not with the top-lev
en
En réponse au message
de : Yaron Minsky
du : 2009-10-09 11:58:11
À : Andrej Bauer
CC : caml-list@yquem.inria.fr
Sujet : Re: [Caml-list] Improving OCaml's choice of type to display
Well, if we're picking heuristics, the fewest number of characters wouldn't be
crazy either. Given
Hi,
can't you just say that you spotted a problem in the proposed solution
instead of being so aggressive?
Removing all the useless sentences of your message just leave this:
Le 9 oct. 09 à 16:18, Damien Guichard a écrit :
Imagine my code is:
type color = int
let black : color = 0
T
> Le 9 oct. 09 à 16:18, Damien Guichard a écrit :
>
>
> Imagine my code is:
>
> type color = int
>
> let black : color = 0
>
> Then, following your proposition, evaluating black should give me
an int rather than a color because int is shorter and therefore nicer.
Hmm, I'd say that having OCa
> - *damien*
>
>
> --
> *En réponse au message*
> *de :* Yaron Minsky
> *du :* 2009-10-09 11:58:11
> *À :* Andrej Bauer
> *CC :* caml-list@yquem.inria.fr
> *Sujet :* Re: [Caml-list] Improving OCaml's choice of type to display
>
On Fri, Oct 9, 2009 at 3:33 AM, Andrej Bauer wrote:
> On Fri, Oct 9, 2009 at 3:40 AM, Yaron Minsky wrote:
>> Choosing shorter names.
>
> By which you probably mean "the fewest number of dots (module
> projections)".
That is the rule we used in MLton, breaking ties by
most-recently-defined. It w
7;a Mutable(Ord).map
end
=
functor (Ord: Interfaces.Ordered) ->
struct
include BinaryTree_Keyed.Make(Ord)
module Order = Ord
type 'a map = 'a tree
type 'a foldable = 'a map and fold_key = key
type ('a,'b) fold = (key ->
ks
du : 2009-10-09 20:14:18
À : caml-list@yquem.inria.fr
CC :
Sujet : Re: [Caml-list] Improving OCaml's choice of type to display
On Fri, Oct 9, 2009 at 3:33 AM, Andrej Bauer wrote:
> On Fri, Oct 9, 2009 at 3:40 AM, Yaron Minsky wrote:
> > Choosing shorter names.
>
> By whi
Hi Gilles,
The type display routine uses right-associativity of the -> operator as a
rewriting rule.
Thus ('a -> 'a -> float) and 'a -> ('a -> float) are the same type and are both
displayed as 'a -> 'a -> float.
The type 'a -> ('a -> float) means the application will be (f x) y which is
actu
Hey Damien
Sure, I fully understand that both types are equivalent given the rules
governing the application operator. My point was more on the usability side,
as the type display is primarily intended at helping the programmer to
quickly figure out type mismatch. So I'd think having a display all
You need to use a type alias:
# type ('a, 'b) func = 'a -> 'b;;
type ('a, 'b) func = 'a -> 'b
# let castro a = (fun _ -> a : ('a,'b) func);;
val castro : 'a -> ('b, 'a) func =
This is also how the compiler decides the arity of C functions from
"external" declarations, that is, it "counts the arr
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