Horton

Re: Improve readability by using designated initializers when possible

Japin Li <japinli@hotmail.com>

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From: Japin Li <japinli@hotmail.com>
To: Jelte Fennema-Nio <postgres@jeltef.nl>
Cc: Michael Paquier <michael@paquier.xyz>, jian he <jian.universality@gmail.com>, Jeff Davis <pgsql@j-davis.com>, PostgreSQL-development <pgsql-hackers@postgresql.org>, Alvaro Herrera <alvherre@alvh.no-ip.org>, pgsql-hackers@lists.postgresql.org
Date: 2024-03-05T14:30:34Z
Lists: pgsql-hackers

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On Tue, 05 Mar 2024 at 22:03, Jelte Fennema-Nio <postgres@jeltef.nl> wrote:
> On Tue, 5 Mar 2024 at 14:50, Japin Li <japinli@hotmail.com> wrote:
>> Attach a patch to rewrite dispatch_table array using C99-designated
>> initializer syntax.
>
> Looks good. Two small things:

Thanks for the review.

>
> +       [EEOP_LAST] = &&CASE_EEOP_LAST,
>
> Is EEOP_LAST actually needed in this array? It seems unused afaict. If
> indeed not needed, that would be good to remove in an additional
> commit.

There is a warning if remove it, so I keep it.

/home/japin/Codes/postgres/build/../src/backend/executor/execExprInterp.c:118:33: warning: label ‘CASE_EEOP_LAST’ defined but not used [-Wunused-label]
  118 | #define EEO_CASE(name)          CASE_##name:
      |                                 ^~~~~
/home/japin/Codes/postgres/build/../src/backend/executor/execExprInterp.c:1845:17: note: in expansion of macro ‘EEO_CASE’
 1845 |                 EEO_CASE(EEOP_LAST)
      |                 ^~~~~~~~

>
> - *
> - * The order of entries needs to be kept in sync with the dispatch_table[]
> - * array in execExprInterp.c:ExecInterpExpr().
>
> I think it would be good to at least keep the comment saying that this
> array should be updated (only the order doesn't need to be strictly
> kept in sync anymore).

Fixed.

Commits

  1. Remove ObjectClass type

  2. Simplify pg_enc2gettext_tbl[] with C99-designated initializer syntax

  3. Use C99-designated initializer syntax for arrays related to encodings

  4. Remove last NULL element in config_group_names[]

  5. Use C99-designated initializer syntax for more arrays

  6. Remove unnecessary array object_classes[] in dependency.c

  7. Add trailing commas to enum definitions