[erlang-questions] Extensions to comprehensions eeps

[Hynek Vychodil]

+1

It is useless mess. It is not improving readability, reliability nor
whatever other.

On Wed, Jul 30, 2008 at 11:13 AM, Anthony Shipman <als@REDACTED> wrote:

> A recent eep says
>
>    Currently, Erlang has
>
>        Pattern <- Expr
>
>    to enumerate over the elements of a single list and
>
>        Pattern <= Expr
>
>    to enumerate over a binary.  EEP 12 [1] adds
>
>        Pattern [<-] List
>        Pattern {<-} Tuple
>        Pattern <<<->> Binary
>
> Why the plethora of obscure arrow symbols? We should only need the one
> arrow.
> Since it is a dynamic language the system should know what type of
> collection
> is supplied and iterate appropriately.
>
> With the above symbols if I change a string from a list to a binary I've
> got
> to go and change all of the comprehensions.
>
> The funny symbols are a kind of type annotation by stealth that is quite
> irregular in the language.
>
> --
> Anthony Shipman                    Mamas don't let your babies
> als@REDACTED                   grow up to be outsourced.
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-- 
--Hynek (Pichi) Vychodil
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