[nongnu] elpa/rust-mode 5cf4207 1/3: copy command rustic-toggle-mutability from #194

[ELPA Syncer]

branch: elpa/rust-mode
commit 5cf4207916a54a711c16351719dddc8f1b4e2d48
Author: brotzeit <brotzeitmacher@gmail.com>
Commit: brotzeit <brotzeitmacher@gmail.com>

    copy command rustic-toggle-mutability from #194
---
 rust-utils.el | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rust-utils.el b/rust-utils.el
index 022973b..d44a609 100644
--- a/rust-utils.el
+++ b/rust-utils.el
@@ -77,6 +77,15 @@ visit the new file."
                (delete-pair))
               (t (rust-insert-dbg)))))))
 
+(defun rustic-toggle-mutability ()
+  "Toggles the mutability of the variable defined on the current line"
+  (interactive)
+  (save-excursion
+    (back-to-indentation)
+    (forward-word)
+    (if (string= " mut" (buffer-substring (point) (+ (point) 4)))
+        (delete-region (point) (+ (point) 4))
+      (insert " mut"))))
 ;;; _
 (provide 'rust-utils)
 ;;; rust-utils.el ends here