GNU bug report logs - #68054
[PATCH] Add tree-sitter indent rule for lexical decls in js/typescript

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From: Noah Peart <noah.v.peart <at> gmail.com>
To: Dmitry Gutov <dmitry <at> gutov.dev>
Cc: Yuan Fu <casouri <at> gmail.com>, 68054 <at> debbugs.gnu.org
Subject: bug#68054: [PATCH] Add tree-sitter indent rule for lexical decls in js/typescript
Date: Sun, 31 Dec 2023 00:35:39 -0500

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Yea, I agree that would be better - would you align on start the variable
names, or '=' like
`c-lineup-assignments`?

On Sat, Dec 30, 2023 at 7:31 PM Dmitry Gutov <dmitry <at> gutov.dev> wrote:

> On 30/12/2023 22:31, Yuan Fu wrote:
> >
> >> On Dec 29, 2023, at 8:24 PM, Yuan Fu<casouri <at> gmail.com>  wrote:
> >>
> >>
> >>
> >>> On Dec 26, 2023, at 10:21 PM, Noah Peart<noah.v.peart <at> gmail.com>
> wrote:
> >>>
> >>> Tags: patch
> >>>
> >>> * Bug: `js-ts-mode` and `typescript-ts-mode` are missing indentation
> >>> rules for lexical declarations that span multiple lines.
> >>>
> >>> Recipe to reproduce:
> >>>
> >>> Using the following function to configure js-ts-mode and indent the
> >>> buffer:
> >>>
> >>>     (defun try-indent ()
> >>>       (interactive)
> >>>       (js-ts-mode)
> >>>       (setq-local indent-tabs-mode nil)
> >>>       (setq-local js-indent-level 4)
> >>>       (indent-region (point-min) (point-max)))
> >>>
> >>> Add the following example to a buffer and call `try-indent`.
> >>>
> >>>     let foo = 1,
> >>>     bar = 2; // no indent rule matches this line
> >>>
> >>> No indentation is applied to the second line.
> >>>
> >>> This patch adds a simple indentation rules for `js-ts-mode` and
> >>> `typescript-ts-mode` to handle the multi-line lexical declarations.
> > It seems that js-mode indents bar to align with foo, rather than
> indenting one level. I feel that we should do the same, WDYT?
>
> Yes, please. This also makes a difference when the variables are
> declared with 'const' instead of 'let'.
>
> We should also support 'var' declarations: the parent node type to match
> against is "variable_declaration".
>

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