Setting function in a class

Setting function in a class

[Keyan Zahedi]

hi,

i have the following question: i would like to create a class with functions that can be set later. here is an example:

class myclass =
object
val mutable _myfunc = (* a function of type string -> bool)
method set_myfunc f = _myfunc <- f
method my_func f = _myfunc f
;;

of course the code above does not work.

can anyone tell me how to do this?

regards,
keyan

Re: [Caml-list] Setting function in a class

[Stéphane Glondu]

Le 19/07/2010 09:30, Keyan Zahedi a écrit :
> class myclass =
> object
> val mutable _myfunc = (* a function of type string -> bool)
> method set_myfunc f = _myfunc <- f
> method my_func f = _myfunc f
> ;;

I am not sure of what blocks you. Just making your snippet syntactically
correct works:

class myclass =
object
val mutable _myfunc = fun (s:string) -> true
method set_myfunc f = _myfunc <- f
method my_func f = _myfunc f
end
;;


Cheers,

-- 
Stéphane

Re: [Caml-list] Setting function in a class

[Keyan Zahedi]

hi,

this is indeed my code. being sure, that my code is correct, i was able to locate the problem somewhere else :)

thanks!
keyan

On 19 Jul 2010, at 09:37, Stéphane Glondu wrote:

> Le 19/07/2010 09:30, Keyan Zahedi a écrit :
>> class myclass =
>> object
>> val mutable _myfunc = (* a function of type string -> bool)
>> method set_myfunc f = _myfunc <- f
>> method my_func f = _myfunc f
>> ;;
> 
> I am not sure of what blocks you. Just making your snippet syntactically
> correct works:
> 
> class myclass =
> object
> val mutable _myfunc = fun (s:string) -> true
> method set_myfunc f = _myfunc <- f
> method my_func f = _myfunc f
> end
> ;;
> 
> 
> Cheers,
> 
> -- 
> Stéphane
>