On 03/09/2017 09:25 AM, Wolfgang Lux wrote:
>
>> Am 08.03.2017 um 19:46 schrieb Andy Jost <Andrew.Jost_at_synopsys.com>:
>>
>> I wonder if anyone has ever thought about allowing a “where” clause with conditions in a Curry expression. For instance, I wish this were a valid expression:
>>
>> (x where length x == 3)
>>
>> (I also like to assume unbound variables are free, but that’s a different topic.)
>>
>> Any thoughts?
>
> Isn't this already possible with (length x == 3 &> x) in Curry now?
> Or am I missing something?
I also thought of the same construction.
There is still one issue to discuss: the scope of x.
If x should be visible like any other object introduced
in a where clause, one can write it as
where x = let x free in length x == 3 &> x
Best regards,
Michael
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Received on Do Mär 09 2017 - 11:32:07 CET