bug#70023: [PATCH] Add typescript-ts-mode indentation for interface bodies

[Noah Peart <noah.v.peart@gmail.com>]

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Tags: patch


Adds missing indentation for typescript interfaces.

Currently, there is no indentation for property signatures in typescript
interfaces.

To reproduce, call `M-x (my-test-typescript-indent)`

    (defun my-test-typescript-indent ()
      (interactive)
      (typescript-ts-mode)
      (setq-local typescript-ts-mode-indent-offset 4)
      (indent-region (point-min) (point-max)))


in buffer with the following typescript code:

    interface Foo {
    foo: string;   // no matching indent rule
    bar?: boolean; // no matching indent rule
    }


In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.33, cairo version 1.16.0) of 2024-03-24 built on noah-X580VD
Repository revision: c5de73a95a6ecefe46fe1ac07da8e83032be7f5b
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Ubuntu 22.04.4 LTS

Configured using:
 'configure --prefix=/usr/local --with-modules --with-tree-sitter
--with-threads --with-x-toolkit=gtk3 --with-xwidgets --with-gnutls
--with-json --with-mailutils --with-jpeg --with-png --with-rsvg
--with-tiff --with-xml2 --with-xpm --with-imagemagick CC=gcc-12
CXX=gcc-12'

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From a39f2364973998318b56d91cb2801a06b237b88a Mon Sep 17 00:00:00 2001
From: Noah Peart <noah.v.peart@gmail.com>
Date: Tue, 26 Mar 2024 22:44:48 -0700
Subject: [PATCH] Add typescript-ts-mode indentation for interface bodies

* lisp/progmodes/typescript-ts-mode.el
(typescript-ts-mode--indent-rules): Add indentation rule for
interface bodies.
---
 lisp/progmodes/typescript-ts-mode.el | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lisp/progmodes/typescript-ts-mode.el b/lisp/progmodes/typescript-ts-mode.el
index ea4f6417c5a..ab1d76ab20e 100644
--- a/lisp/progmodes/typescript-ts-mode.el
+++ b/lisp/progmodes/typescript-ts-mode.el
@@ -124,6 +124,7 @@ typescript-ts-mode--indent-rules
      ((parent-is "object_type") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "enum_body") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "class_body") parent-bol typescript-ts-mode-indent-offset)
+     ((parent-is "interface_body") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "arrow_function") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "parenthesized_expression") parent-bol typescript-ts-mode-indent-offset)
      ((parent-is "binary_expression") parent-bol typescript-ts-mode-indent-offset)
-- 
2.34.1