* [Caml-list] First mandatory and safe use of Obj ?
@ 2014-01-23 16:18 Christophe Raffalli
2014-01-23 20:53 ` Haoyang Wang
0 siblings, 1 reply; 3+ messages in thread
From: Christophe Raffalli @ 2014-01-23 16:18 UTC (permalink / raw)
To: Caml list
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Hello,
To recover the result type of a functor for which I can not yet write an argument, I end up writing~:
module type MType = module type of MyFunctor (struct let env = Obj.magic 0 end)
This works well and Obj.magic is never run ...
But I or OCaml may miss a feature ?
Cheers,
Christophe
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* Re: [Caml-list] First mandatory and safe use of Obj ?
2014-01-23 16:18 [Caml-list] First mandatory and safe use of Obj ? Christophe Raffalli
@ 2014-01-23 20:53 ` Haoyang Wang
2014-01-23 22:22 ` Christophe Raffalli
0 siblings, 1 reply; 3+ messages in thread
From: Haoyang Wang @ 2014-01-23 20:53 UTC (permalink / raw)
To: Christophe Raffalli; +Cc: Caml list
> module type MType = module type of MyFunctor (struct let env = Obj.magic 0 end)
>
> This works well and Obj.magic is never run ...
raise an exception instead?
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [Caml-list] First mandatory and safe use of Obj ?
2014-01-23 20:53 ` Haoyang Wang
@ 2014-01-23 22:22 ` Christophe Raffalli
0 siblings, 0 replies; 3+ messages in thread
From: Christophe Raffalli @ 2014-01-23 22:22 UTC (permalink / raw)
To: Haoyang Wang; +Cc: Caml list
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On 14-01-23 12:53:24, Haoyang Wang wrote:
> > module type MType = module type of MyFunctor (struct let env = Obj.magic 0 end)
> >
> > This works well and Obj.magic is never run ...
>
> raise an exception instead?
or assert false, I will do that.
> --
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> https://sympa.inria.fr/sympa/arc/caml-list
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2014-01-23 16:18 [Caml-list] First mandatory and safe use of Obj ? Christophe Raffalli
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