[nongnu] elpa/rust-mode a56e65c984 3/5: Improve regexp to match the reference mark &

[ELPA Syncer]

branch: elpa/rust-mode
commit a56e65c984feb814420a64de95522fd6e228fbca
Author: Christophe Troestler <Christophe.Troestler@umons.ac.be>
Commit: Christophe Troestler <Christophe.Troestler@umons.ac.be>

    Improve regexp to match the reference mark &
---
 rust-mode.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rust-mode.el b/rust-mode.el
index 32794c5f10..773251d8f6 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -467,7 +467,8 @@ Does not match type annotations of the form \"foo::<\"."
 
      ;; Question mark operator
      ("\\?" . 'rust-question-mark)
-     ("\\(&\\)'?\\<" 1 'rust-ampersand-face)
+     ("\\(&+\\)\\(?:'\\(?:\\<\\|_\\)\\|\\<\\|[[({:*_|]\\)"
+      1 'rust-ampersand-face)
      )
 
    ;; Ensure we highlight `Foo` in `struct Foo` as a type.