Subject: bug#67031: [PATCH] Fix typescript-ts-mode indentation in unbracketed statements

From: Noah Peart <[email-masked]>
Date: Mon, 20 Nov 2023 10:07:43 -0800

Here is an updated patch with the added "else_clause" and indentation test
for
statements without braces.

On Mon, Nov 20, 2023 at 4:55 AM Noah Peart <[email-masked]> wrote:

> Yea, I'm using the same.  But, would it be useful to have a way to set
> that when
> running tests without needing to temporarily add set
> `treesit-extra-load-path` in
> the test file?
>
> On Sun, Nov 19, 2023 at 5:38 AM Dmitry Gutov <[email-masked]> wrote:
>
>> On 19/11/2023 08:08, Eli Zaretskii wrote:
>> >> Date: Sun, 19 Nov 2023 03:24:49 +0200
>> >> Cc:[email-masked],[email-masked]
>> >> From: Dmitry Gutov<[email-masked]>
>> >>
>> >> On 19/11/2023 02:12, Noah Peart wrote:
>> >>> Yea, I can do that.
>> >>>
>> >>> Is there a recipe for running the tests with a tree-sitter library
>> path?
>> >> You mean with the default tree-sitter librayr path overridden? I'm not
>> sure.
>> > Why would an ERT test need that?  We are supposed to test Emacs with
>> > the otherwise installed system features.  As tree-sitter grammars are
>> > not part of Emacs, there should be no need to tell Emacs to use a
>> > grammar library other than the one installed on the system.  Right?
>>
>> We have a way to override that with the variable
>> treesit-extra-load-path, so it follows that some users will take
>> advantage of it to add extra directories.
>>
>> I'm using ~/.emacs.d/tree-sitter/ myself.
>>
>
From e38f823238f456a0825b8a4e3f86da6efaac0579 Mon Sep 17 00:00:00 2001
From: nverno <[email-masked]>
Date: Mon, 20 Nov 2023 10:04:51 -0800
Subject: [PATCH] Fix typescript-ts-mode indentation in statements without
 braces

---
 lisp/progmodes/typescript-ts-mode.el          |  3 +++
 .../typescript-ts-mode-resources/indent.erts  | 22 +++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/lisp/progmodes/typescript-ts-mode.el b/lisp/progmodes/typescript-ts-mode.el
index b976145dbf3..826cd5f39b0 100644
--- a/lisp/progmodes/typescript-ts-mode.el
+++ b/lisp/progmodes/typescript-ts-mode.el
@@ -124,6 +124,9 @@ typescript-ts-mode--indent-rules
      ((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)
+     ((parent-is ,(rx (or (seq (or "if" "for" "for_in" "while" "do") "_statement")
+                          "else_clause")))
+      parent-bol typescript-ts-mode-indent-offset)
 
      ,@(when (eq language 'tsx)
 	 (append (tsx-ts-mode--indent-compatibility-b893426)
diff --git a/test/lisp/progmodes/typescript-ts-mode-resources/indent.erts b/test/lisp/progmodes/typescript-ts-mode-resources/indent.erts
index 146ee76574e..20f423259b4 100644
--- a/test/lisp/progmodes/typescript-ts-mode-resources/indent.erts
+++ b/test/lisp/progmodes/typescript-ts-mode-resources/indent.erts
@@ -23,6 +23,28 @@ const foo = () => {
 }
 =-=-=
 
+Name: Statement indentation without braces
+
+=-=
+const foo = () => {
+  if (true)
+    console.log("if_statement");
+  else if (false)
+    console.log("if_statement");
+  else
+    console.log("else_clause");
+  for (let i = 0; i < 1; i++)
+    console.log("for_statement");
+  for (let i of [true])
+    console.log("for_in_statement");
+  while (false)
+    console.log("while_statement");
+  do
+    console.log("do_statement");
+  while (false)
+};
+=-=-=
+
 Code:
   (lambda ()
     (setq indent-tabs-mode nil)
-- 
2.34.1