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Re: [Qemu-trivial] [PATCH v6 1/2] CODING_STYLE: specify the indent rule
From: |
Laurent Vivier |
Subject: |
Re: [Qemu-trivial] [PATCH v6 1/2] CODING_STYLE: specify the indent rule for multiline code |
Date: |
Thu, 11 Apr 2019 21:42:26 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 |
On 04/03/2019 08:16, Wei Yang wrote:
> We didn't specify the indent rule for multiline code here, which may
> mislead users. And in current code, the code use various styles.
>
> Add this rule in CODING_STYLE to make sure this is clear to every one.
>
> Signed-off-by: Wei Yang <address@hidden>
> Suggested-by: Igor Mammedov <address@hidden>
>
> ---
> v6:
> * add ) for last example of function
> v5:
> * different rules -> various styles
> * describe function variants separately
> * take struct out
> v4:
> * widths -> width
> * add an exception example for function
> v3:
> * misleading -> mislead
> * add comma after arg2 in example
> v2:
> * rephrase changelog suggested by Eric Blake
> - remove one redundant line
> - fix some awkward grammar
> - add { ; at the end of example
> ---
> CODING_STYLE | 39 +++++++++++++++++++++++++++++++++++++++
> 1 file changed, 39 insertions(+)
>
> diff --git a/CODING_STYLE b/CODING_STYLE
> index ec075dedc4..90321e9c28 100644
> --- a/CODING_STYLE
> +++ b/CODING_STYLE
> @@ -29,6 +29,45 @@ Spaces of course are superior to tabs because:
>
> Do not leave whitespace dangling off the ends of lines.
>
> +1.1 Multiline Indent
> +
> +There are several places where indent is necessary:
> +
> + - if/else
> + - while/for
> + - function definition & call
> +
> +When breaking up a long line to fit within line width, we need a proper
> indent
> +for the following lines.
> +
> +In case of if/else, while/for, align the secondary lines just after the
> +opening parenthesis of the first.
> +
> +For example:
> +
> + if (a == 1 &&
> + b == 2) {
> +
> + while (a == 1 &&
> + b == 2) {
> +
> +In case of function, there are several variants:
> +
> + * 4 spaces indent from the beginning
> + * align the secondary lines just after the opening parenthesis of the
> + first
> +
> +For example:
> +
> + do_something(x, y,
> + z);
> +
> + do_something(x, y,
> + z);
> +
> + do_something(x, do_another(y,
> + z));
> +
> 2. Line width
>
> Lines should be 80 characters; try not to make them longer.
>
Applied to my trivial-patches branch.
Thanks,
Laurent
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