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Re: [PATCH v3 01/12] bisect--helper: fix `cmd_*()` function switch default return

From
Johannes Schindelin <johannes.schindelin@gmx.de>
Date
May 22, 2020, 13:14 UTC
Message-ID
<nycvar.QRO.7.76.6.2005221513060.56@tvgsbejvaqbjf.bet>
In-Reply-To
<20200423070704.39872-2-mirucam@gmail.com>
Hi Miriam,
On Thu, 23 Apr 2020, Miriam Rubio wrote:
Show 5 quoted lines
> In a `cmd_*()` function, return `error()` cannot be used
> because that translates to `-1` and `cmd_*()` functions need
> to return exit codes.
>
> Let's fix switch default return.

I think there is an even stronger argument for not returning here: it actually _would_ be a bug, not a user error, if the `default` branch was reached.

The patch looks good.

Ciao, Dscho

Show 25 quoted lines
>
> Mentored-by: Christian Couder <chriscool@tuxfamily.org>
> Mentored-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
> Signed-off-by: Miriam Rubio <mirucam@gmail.com>
> ---
>  builtin/bisect--helper.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/builtin/bisect--helper.c b/builtin/bisect--helper.c
> index c1c40b516d..a81a2c76ff 100644
> --- a/builtin/bisect--helper.c
> +++ b/builtin/bisect--helper.c
> @@ -711,7 +711,7 @@ int cmd_bisect__helper(int argc, const char **argv, const char *prefix)
>  		res = bisect_start(&terms, no_checkout, argv, argc);
>  		break;
>  	default:
> -		return error("BUG: unknown subcommand '%d'", cmdmode);
> +		BUG("unknown subcommand %d", (int)cmdmode);
>  	}
>  	free_terms(&terms);
>
> --
> 2.25.0
>
>
Previous: Miriam RubioNext: Miriam Rubio
Message 3 of 28 in “Finish converting git bisect to C part 2”
  1. 00/12 Finish converting git bisect to C part 2Miriam Rubio, Apr 23, 2020
  2. 01/12 bisect--helper: fix `cmd_*()` function switch default returnMiriam Rubio, Apr 23, 2020
  3. Johannes SchindelinMay 22, 2020
  4. 03/12 bisect--helper: introduce new `write_in_file()` functionMiriam Rubio, Apr 23, 2020
  5. Johannes SchindelinMay 22, 2020
  6. Đoàn Trần Công DanhMay 23, 2020
  7. 02/12 bisect--helper: use '-res' in 'cmd_bisect__helper' returnMiriam Rubio, Apr 23, 2020
  8. Johannes SchindelinMay 22, 2020
  9. 04/12 bisect--helper: reimplement `bisect_autostart` shell function in CMiriam Rubio, Apr 23, 2020
  10. Johannes SchindelinMay 22, 2020
  11. Johannes SchindelinMay 22, 2020
  12. 05/12 bisect--helper: reimplement `bisect_next` and `bisect_auto_next` shell functions in CMiriam Rubio, Apr 23, 2020
  13. Johannes SchindelinMay 22, 2020
  14. 07/12 bisect--helper: retire `--bisect-clean-state` subcommandMiriam Rubio, Apr 23, 2020
  15. 06/12 bisect--helper: finish porting `bisect_start()` to CMiriam Rubio, Apr 23, 2020
  16. Johannes SchindelinMay 22, 2020
  17. 08/12 bisect--helper: retire `--next-all` subcommandMiriam Rubio, Apr 23, 2020
  18. 10/12 bisect--helper: retire `--check-expected-revs` subcommandMiriam Rubio, Apr 23, 2020
  19. 09/12 bisect--helper: reimplement `bisect_state` & `bisect_head` shell functions in CMiriam Rubio, Apr 23, 2020
  20. Johannes SchindelinMay 22, 2020
  21. Miriam R.Jun 20, 2020
  22. Johannes SchindelinJun 19, 2020
  23. 11/12 bisect--helper: retire `--write-terms` subcommandMiriam Rubio, Apr 23, 2020
  24. 12/12 bisect--helper: retire `--bisect-autostart` subcommandMiriam Rubio, Apr 23, 2020
  25. Junio C HamanoApr 23, 2020
  26. Miriam R.Apr 25, 2020
  27. Johannes SchindelinMay 22, 2020
  28. Miriam R.May 24, 2020

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