[erlang-questions] What is the best location to place common type specs?

Loïc Hoguin <>
Thu Jul 5 14:11:21 CEST 2012


Hello,

Your specs should belong to a single module. module1:myrec() isn't the 
same type as module2:myrec().

A bit off-topic but I wouldn't use a record over multiple modules (even 
though I've done it in the past, this is getting fixed). It's better to 
have your record belong to one module, make it opaque and to add 
functions to manipulate it without having to know what's in it. This way 
you can modify your record only in one place and not have to worry about 
breaking code everywhere.

On 07/05/2012 02:07 PM, Zhemzhitsky Sergey wrote:
> Hi guys,
>
> I have multiple .hrl files with multiple records. I’d like to define
> separate types for these records and their fields.
>
> These records will be used across multiple modules, and I’m wondering
> whether it is legal to define type specs in the hrl files?
>
> Or would it be better to have a separate module with exported common
> type specs?
>
> Best Regards,
>
> Sergey
>
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-- 
Loïc Hoguin
Erlang Cowboy
Nine Nines
http://ninenines.eu





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