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Re: [PATCH 2/2] parse-options.c: use "enum parse_opt_result" for parse_nodash_opt()

From
Junio C Hamano <gitster@pobox.com>
Date
Nov 9, 2021, 17:58 UTC
Message-ID
<xmqqo86t2oud.fsf@gitster.g>
In-Reply-To
<patch-2.2-aa6224b10f8-20211109T110113Z-avarab@gmail.com>
Ævar Arnfjörð Bjarmason  <avarab@gmail.com> writes:
Show 38 quoted lines
> Change the parse_nodash_opt() function to use "enum
> parse_opt_result". In 352e761388b (parse-options.[ch]: consistently
> use "enum parse_opt_result", 2021-10-08) its only caller
> parse_options_step() started using that return type, and the
> get_value() which will be called and return from it uses the same
> enum.
>
> Let's do the same here so that this function always returns an "enum
> parse_opt_result" value.
>
> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>  parse-options.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/parse-options.c b/parse-options.c
> index fc5b43ff0b2..629e7963497 100644
> --- a/parse-options.c
> +++ b/parse-options.c
> @@ -404,8 +404,9 @@ static enum parse_opt_result parse_long_opt(
>  	return PARSE_OPT_UNKNOWN;
>  }
>  
> -static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
> -			    const struct option *options)
> +static enum parse_opt_result parse_nodash_opt(struct parse_opt_ctx_t *p,
> +					      const char *arg,
> +					      const struct option *options)
>  {
>  	const struct option *all_opts = options;
>  
> @@ -415,7 +416,7 @@ static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
>  		if (options->short_name == arg[0] && arg[1] == '\0')
>  			return get_value(p, options, all_opts, OPT_SHORT);
>  	}
> -	return -2;
> +	return PARSE_OPT_ERROR;
>  }

The current caller only checks to skip a token that yields 0 (aka PARSE_OPT_DONE) and does not distinguish between other values, so this won't change the behaviour of the current code, but it is not clear if returning -1 (aka PARSE_OPT_ERROR) is better than -2 (aka PARSE_OPT_HELP).

Previous: Ævar Arnfjörð BjarmasonNext: Ævar Arnfjörð Bjarmason
Message 49 of 61 in “fix bug, use existing enums”
  1. 00/10 fix bug, use existing enumsÆvar Arnfjörð Bjarmason, Sep 28, 2021
  2. 01/10 parse-options.h: move PARSE_OPT_SHELL_EVAL between enumsÆvar Arnfjörð Bjarmason, Sep 28, 2021
  3. 02/10 parse-options.[ch]: consistently use "enum parse_opt_flags"Ævar Arnfjörð Bjarmason, Sep 28, 2021
  4. Junio C HamanoSep 29, 2021
  5. Ævar Arnfjörð BjarmasonSep 29, 2021
  6. Junio C HamanoSep 29, 2021
  7. Junio C HamanoSep 29, 2021
  8. 03/10 parse-options.[ch]: consistently use "enum parse_opt_result"Ævar Arnfjörð Bjarmason, Sep 28, 2021
  9. Junio C HamanoSep 29, 2021
  10. 04/10 parse-options.c: use exhaustive "case" arms for "enum parse_opt_type"Ævar Arnfjörð Bjarmason, Sep 28, 2021
  11. Junio C HamanoSep 29, 2021
  12. Ævar Arnfjörð BjarmasonSep 29, 2021
  13. Junio C HamanoSep 29, 2021
  14. 05/10 parse-options.h: make the "flags" in "struct option" an enumÆvar Arnfjörð Bjarmason, Sep 28, 2021
  15. Junio C HamanoSep 29, 2021
  16. 07/10 commit-graph: stop using optname()Ævar Arnfjörð Bjarmason, Sep 28, 2021
  17. Taylor BlauSep 29, 2021
  18. Ævar Arnfjörð BjarmasonOct 1, 2021
  19. 06/10 parse-options.c: move optname() earlier in the fileÆvar Arnfjörð Bjarmason, Sep 28, 2021
  20. 08/10 parse-options.[ch]: make opt{bug,name}() "static"Ævar Arnfjörð Bjarmason, Sep 28, 2021
  21. 09/10 parse-options tests: test optname() outputÆvar Arnfjörð Bjarmason, Sep 28, 2021
  22. 10/10 parse-options: change OPT_{SHORT,UNSET} to an enumÆvar Arnfjörð Bjarmason, Sep 28, 2021
  23. Junio C HamanoSep 29, 2021
  24. 00/11 fix bug, use existing enumsÆvar Arnfjörð Bjarmason, Oct 1, 2021
  25. 01/11 parse-options.h: move PARSE_OPT_SHELL_EVAL between enumsÆvar Arnfjörð Bjarmason, Oct 1, 2021
  26. 02/11 parse-options.[ch]: consistently use "enum parse_opt_flags"Ævar Arnfjörð Bjarmason, Oct 1, 2021
  27. Junio C HamanoOct 1, 2021
  28. 03/11 parse-options.[ch]: consistently use "enum parse_opt_result"Ævar Arnfjörð Bjarmason, Oct 1, 2021
  29. 04/11 parse-options.c: use exhaustive "case" arms for "enum parse_opt_result"Ævar Arnfjörð Bjarmason, Oct 1, 2021
  30. 05/11 parse-options.c: use exhaustive "case" arms for "enum parse_opt_type"Ævar Arnfjörð Bjarmason, Oct 1, 2021
  31. 06/11 parse-options.h: make the "flags" in "struct option" an enumÆvar Arnfjörð Bjarmason, Oct 1, 2021
  32. 07/11 parse-options.c: move optname() earlier in the fileÆvar Arnfjörð Bjarmason, Oct 1, 2021
  33. 08/11 commit-graph: stop using optname()Ævar Arnfjörð Bjarmason, Oct 1, 2021
  34. René ScharfeOct 1, 2021
  35. 09/11 parse-options.[ch]: make opt{bug,name}() "static"Ævar Arnfjörð Bjarmason, Oct 1, 2021
  36. 10/11 parse-options tests: test optname() outputÆvar Arnfjörð Bjarmason, Oct 1, 2021
  37. 11/11 parse-options: change OPT_{SHORT,UNSET} to an enumÆvar Arnfjörð Bjarmason, Oct 1, 2021
  38. Junio C HamanoOct 1, 2021
  39. Junio C HamanoOct 1, 2021
  40. 00/10 fix bug, use more enumsÆvar Arnfjörð Bjarmason, Oct 8, 2021
  41. 01/10 parse-options.h: move PARSE_OPT_SHELL_EVAL between enumsÆvar Arnfjörð Bjarmason, Oct 8, 2021
  42. 03/10 parse-options.[ch]: consistently use "enum parse_opt_result"Ævar Arnfjörð Bjarmason, Oct 8, 2021
  43. SZEDER GáborNov 6, 2021
  44. Ævar Arnfjörð BjarmasonNov 6, 2021
  45. 0/2 parse-options.[ch]: enum fixup & enum nitÆvar Arnfjörð Bjarmason, Nov 9, 2021
  46. 1/2 parse-options.[ch]: revert use of "enum" for parse_options()Ævar Arnfjörð Bjarmason, Nov 9, 2021
  47. Junio C HamanoNov 9, 2021
  48. 2/2 parse-options.c: use "enum parse_opt_result" for parse_nodash_opt()Ævar Arnfjörð Bjarmason, Nov 9, 2021
  49. Junio C HamanoNov 9, 2021
  50. Ævar Arnfjörð BjarmasonNov 9, 2021
  51. Junio C HamanoNov 9, 2021
  52. parse-options.c: use "enum parse_opt_result" for parse_nodash_opt()Ævar Arnfjörð Bjarmason, Nov 10, 2021
  53. Junio C HamanoNov 11, 2021
  54. 02/10 parse-options.[ch]: consistently use "enum parse_opt_flags"Ævar Arnfjörð Bjarmason, Oct 8, 2021
  55. 05/10 parse-options.h: make the "flags" in "struct option" an enumÆvar Arnfjörð Bjarmason, Oct 8, 2021
  56. 04/10 parse-options.c: use exhaustive "case" arms for "enum parse_opt_result"Ævar Arnfjörð Bjarmason, Oct 8, 2021
  57. 06/10 parse-options.c: move optname() earlier in the fileÆvar Arnfjörð Bjarmason, Oct 8, 2021
  58. 07/10 commit-graph: stop using optname()Ævar Arnfjörð Bjarmason, Oct 8, 2021
  59. 08/10 parse-options.[ch]: make opt{bug,name}() "static"Ævar Arnfjörð Bjarmason, Oct 8, 2021
  60. 09/10 parse-options tests: test optname() outputÆvar Arnfjörð Bjarmason, Oct 8, 2021
  61. 10/10 parse-options: change OPT_{SHORT,UNSET} to an enumÆvar Arnfjörð Bjarmason, Oct 8, 2021

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