Add TypeScript support to ESLint flat config (#30044)

Andrey Sitnik and Peter Tripp created 7 months ago

Sync ESLint flat config names with [the latest
docs](https://eslint.org/docs/latest/use/configure/configuration-files#configuration-file).
New ESLint has native support for `eslint.config.ts`

Release Notes:

- N/A

---------

Co-authored-by: Peter Tripp <[e-mail]>

Change summary

crates/languages/src/typescript.rs | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

Detailed changes

crates/languages/src/typescript.rs

@@ -341,8 +341,14 @@ impl EsLintLspAdapter {
     const SERVER_PATH: &'static str = "vscode-eslint/server/out/eslintServer.js";
     const SERVER_NAME: LanguageServerName = LanguageServerName::new_static("eslint");
 
-    const FLAT_CONFIG_FILE_NAMES: &'static [&'static str] =
-        &["eslint.config.js", "eslint.config.mjs", "eslint.config.cjs"];
+    const FLAT_CONFIG_FILE_NAMES: &'static [&'static str] = &[
+        "eslint.config.js",
+        "eslint.config.mjs",
+        "eslint.config.cjs",
+        "eslint.config.ts",
+        "eslint.config.cts",
+        "eslint.config.mts",
+    ];
 
     pub fn new(node: NodeRuntime) -> Self {
         EsLintLspAdapter { node }