[erlang-patches] EEP37: Funs with names
Anthony Ramine
n.oxyde@REDACTED
Wed Mar 20 15:30:44 CET 2013
Rebased! :)
Does it mean it may be included before R17? Branch maint is for minor
releases, right?
--
Anthony Ramine
Le 20 mars 2013 à 10:31, Fredrik a écrit :
> On 03/20/2013 09:53 AM, Pedram Nimreezi wrote:
>> +1 This is an especially useful console enhancement that allows
>> anonymous function recursion...
>>
>> On Wed, Mar 20, 2013 at 4:38 AM, Anthony Ramine<n.oxyde@REDACTED> wrote:
>>> Will someone ever review this, pretty please with sugar on top?
>>>
>>> It was postponed for R16A; could you tell me if it can be included in R17?
>>>
>>> Regards,
>>>
>>> --
>>> Anthony Ramine
>>>
>>> Le 5 févr. 2013 à 13:51, Anthony Ramine a écrit :
>>>
>>>> Hi,
>>>>
>>>> Rebased against latest master—which I gather is now for R17. Please refetch.
>>>>
>>>> Regards,
>>>>
>>>> --
>>>> Anthony Ramine
>>>>
>>>> Le 21 nov. 2012 à 15:36, Anthony Ramine a écrit :
>>>>
>>>>> Hi,
>>>>>
>>>>> I had forgotten to update the abstract format documentation, named_fun is
>>>>> now mentioned in absform.xml in the doc commit.
>>>>>
>>>>> Please refetch,
>>>>>
>>>>> --
>>>>> Anthony Ramine
>>>>>
>>>>> Le 15 nov. 2012 à 15:22, Henrik Nord a écrit :
>>>>>
>>>>>> I will add this patch to 'master-pu'.
>>>>>>
>>>>>> Thank you for your contribution!
>>>>>>
>>>>>>
>>>>>> On 2012-11-14 17:42, Anthony Ramine wrote:
>>>>>>> This patch implements EEP37: Funs with names
>>>>>>>
>>>>>>> This adds optional names to fun expressions. A named fun expression
>>>>>>> is parsed as a tuple `{named_fun,Loc,Name,Clauses}` in erl_parse.
>>>>>>>
>>>>>>> If a fun expression has a name, it must be present and be the same in
>>>>>>> every of its clauses. The function name shadows the environment of the
>>>>>>> expression shadowing the environment and it is shadowed by the
>>>>>>> environment of the clauses' arguments. An unused function name triggers
>>>>>>> a warning unless it is prefixed by _, just as every variable.
>>>>>>> Variable _ is allowed as a function name.
>>>>>>>
>>>>>>> It is not an error to put a named function in a record field default
>>>>>>> value.
>>>>>>>
>>>>>>> When transforming to Core Erlang, the named fun Fun is changed into
>>>>>>> the following expression:
>>>>>>>
>>>>>>> letrec 'Fun'/Arity =
>>>>>>> fun (Args) ->
>>>>>>> let<Fun> = 'Fun'/Arity
>>>>>>> in Case
>>>>>>> in 'Fun'/Arity
>>>>>>>
>>>>>>> where Args is the list of arguments of 'Fun'/Arity and Case the
>>>>>>> Core Erlang expression corresponding to the clauses of Fun.
>>>>>>>
>>>>>>> This transformation allows us to entirely skip any k_var to k_local
>>>>>>> transformation in the fun's clauses bodies.
>>>>>>>
>>>>>>> https://github.com/nox/otp/compare/erlang:master...eep37
>>>>>>> https://github.com/nox/otp/compare/erlang:master...eep37.patch
>>>>>>>
>>>>>>> git fetch https://github.com/nox/otp eep37
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>> --
>>>>>> /Henrik Nord Erlang/OTP
>>>>>>
>>> _______________________________________________
>>> erlang-patches mailing list
>>> erlang-patches@REDACTED
>>> http://erlang.org/mailman/listinfo/erlang-patches
>>
>>
> Hello,
> To get the patch going in pu,
> Could you rebase it upon the current 'maint' branch.
>
> --
>
> BR Fredrik Gustafsson
> Erlang OTP Team
>
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