Re: Better testing coverage and unified coding for plpgsql loops

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: Darafei "Komяpa" Praliaskouski <me(at)komzpa(dot)net>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Re: Better testing coverage and unified coding for plpgsql loops
Date: 2018-01-02 13:46:23
Message-ID: 20180102134623.4mhrbnc2im6bfp7a@alvherre.pgsql
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Darafei "Komяpa" Praliaskouski wrote:

> - how do currently existing coverage tools display coverage for such a
> large macro?
>
> I expect DEFINE's to be treated as comments.

It is, but then it is counted in the callsite where each branch is
displayed separately. So in
https://coverage.postgresql.org/src/pl/plpgsql/src/pl_exec.c.gcov.html
line 2028 you can see a bunch of "+" and three "-".

> - can this macro become a function?

The "exit_action" argument makes it tough. It can probably be done --
it seems to require contorting the one callsite that uses "goto" though.

--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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