[Tarantool-patches] [PATCH v3] error: add __concat method to error object

[Alexander Turenko]

Sergey O. is okay too, so I'm going to push the patch.

Pushed to master, 2.3, 2.2 and 1.10.

WBR, Alexander Turenko.

On Wed, Jan 15, 2020 at 03:35:42PM +0300, Oleg Babin wrote:
> Thanks!
> 
> I've changed commit message and force pushed it to the top of my branch:
> https://github.com/tarantool/tarantool/tree/olegrok/4489-concat-for-errors
> 
> New commit message:
> 
> commit a9ad4bdfa51174223e0d10ef0b6a751fd15a6d8e (HEAD ->
> olegrok/4489-concat-for-errors, origin/olegrok/4489-concat-for-errors)
> Author: Oleg Babin <babinoleg at mail.ru>
> Date:   Fri Jan 10 18:35:03 2020 +0300
> 
>     error: add __concat method to error object
> 
>     Usually functions return pair `nil, err` and expected that err is
> string.
>     Let's make the behaviour of error object closer to string
>     and define __concat metamethod.
> 
>     The case of error "error_mt.__concat(): neither of args is an error"
>     is not covered by tests because of #4723
> 
>     Closes #4489
> 
> 
> On 15/01/2020 14:26, Alexander Turenko wrote:
> > LGTM.
> > 
> > Just two minor comments re commit message.
> > 
> 
> ---
> Oleg Babin