feat(swift): add treesit support

modules/lang/swift/README.org

@@ -19,6 +19,7 @@ This module adds support for the [[https://developer.apple.com/swift/][Swift pro
 
 ** Packages
 - [[doom-package:swift-mode]]
+- [[doom-package:swift-ts-mode]] if [[doom-module:+tree-sitter]]
 - if [[doom-module:+lsp]]
   - [[doom-package:lsp-sourcekit]]
 - else

modules/lang/swift/config.el

@@ -1,13 +1,18 @@
 ;;; lang/swift/config.el -*- lexical-binding: t; -*-
 
-(after! swift-mode
+(use-package! swift-mode
+  :defer t
+  :init
+  (when (modulep! +tree-sitter)
+    (set-tree-sitter! 'swift-mode 'swift-ts-mode
+      '((swift :url "https://github.com/alex-pinkus/tree-sitter-swift"))))
+
+  :config
   (set-repl-handler! 'swift-mode #'run-swift)
   (set-eglot-client! 'swift-mode '("sourcekit-lsp"))
 
   (when (modulep! +lsp)
-    (add-hook 'swift-mode-local-vars-hook #'lsp! 'append))
+    (add-hook 'swift-mode-local-vars-hook #'lsp! 'append)))
-  (when (modulep! +tree-sitter)
-    (add-hook 'swift-mode-local-vars-hook #'tree-sitter! 'append)))
 
 
 (use-package! flycheck-swift

modules/lang/swift/packages.el

@@ -10,3 +10,6 @@
     (package! company-sourcekit :pin "a1860ad4dd3a542acd2fa0dfac2a388cbdf4af0c"))
   (when (modulep! :checkers syntax -flymake)
     (package! flycheck-swift :pin "4c5ad401252400a78da395fd56a71e67ff8c2761")))
+
+(when (modulep! +tree-sitter)
+  (package! swift-ts-mode :pin "43a0be79f9758fc444f5fafdff6023c4c7bf80f7"))