Feature development

Sazanovich Nikita nikitasazanovich at gmail.com
Tue Apr 5 17:58:29 UTC 2016

Thanks for your reply, Matthew.

I’ve tried to merge my local repository with ghc/master branch and after this I couldn't build it (even checked out to a successful commit). I am getting  this kind of error.

Undefined symbols for architecture x86_64:
"_stg_sel_17_upd_info", referenced from:
_s1yAM_info in UI.dyn_o
_s1yC7_info in UI.dyn_o
_s1yKD_info in UI.dyn_o
_s1yLa_info in UI.dyn_o

It seems like something specific to OS X. Can you help me?

> On 05 Apr 2016, at 2:25 AM, Matthew Pickering <matthewtpickering at gmail.com> wrote:
> Hello Nikita,
> I don't know the answers to your questions but I do know that it's
> easier to give help if there is some code to look at. I would suggest
> you put a diff up on phab with what you have done so far so that it is
> easy for others to give specific comments about where you are stuck.
> Matt
> On Mon, Apr 4, 2016 at 7:22 PM, Sazanovich Nikita
> <nikitasazanovich at gmail.com> wrote:
>>  Hello!
>>  I am working on ticket https://ghc.haskell.org/trac/ghc/ticket/5850 now.
>> I’ve come upon converting the type, which GHC.compileExpr returns, to my
>> prompt function type [PModule] -> Int -> IO String. But this function
>> returns ghc-prim- I don’t see a clear way to convert
>> it. So my questions are:
>> - What this type is about? I know Any type in Haskell. Is it a specific
>> version of it?
>> - Or maybe it is not the best way to check a function correctness? I’ve
>> checked out InteractiveEval module and it seems that there are only four
>> quite similar functions to compile Expressions.
>>  Last person, who was trying to solve this problem, used Unsafe.Coerce and
>> it is also doing this job pretty well now, but the name speaks for itself.
>>  Thank you.
>> _______________________________________________
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>> ghc-devs at haskell.org
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