[nongnu] elpa/rust-mode e201404 367/486: Fix font-locking of "let ref"

[ELPA Syncer]

branch: elpa/rust-mode
commit e20140426e4a7331ef4055d26744b4c27848a361
Author: Tom Tromey <tom@tromey.com>
Commit: Tom Tromey <tom@tromey.com>

    Fix font-locking of "let ref"
    
    Fixes #271
---
 rust-mode-tests.el | 5 +++++
 rust-mode.el       | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/rust-mode-tests.el b/rust-mode-tests.el
index 3e6c67a..64d65c4 100644
--- a/rust-mode-tests.el
+++ b/rust-mode-tests.el
@@ -1297,6 +1297,11 @@ list of substrings of `STR' each followed by its face."
    '("let" font-lock-keyword-face
      "foo" font-lock-variable-name-face))
   (rust-test-font-lock
+   "let ref foo;"
+   '("let" font-lock-keyword-face
+     "ref" font-lock-keyword-face
+     "foo" font-lock-variable-name-face))
+  (rust-test-font-lock
    "let mut foo;"
    '("let" font-lock-keyword-face
      "mut" font-lock-keyword-face
diff --git a/rust-mode.el b/rust-mode.el
index 011f615..51b92d7 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -687,7 +687,7 @@ match data if found. Returns nil if not within a Rust 
string."
      (,rust-re-type-or-constructor 1 font-lock-type-face)
 
      ;; Type-inferred binding
-     (,(concat "\\_<\\(?:let\\|ref\\)\\s-+\\(?:mut\\s-+\\)?" (rust-re-grab 
rust-re-ident) "\\_>") 1 font-lock-variable-name-face)
+     (,(concat "\\_<\\(?:let\\s-+ref\\|let\\|ref\\)\\s-+\\(?:mut\\s-+\\)?" 
(rust-re-grab rust-re-ident) "\\_>") 1 font-lock-variable-name-face)
 
      ;; Type names like `Foo::`, highlight excluding the ::
      (,(rust-path-font-lock-matcher rust-re-uc-ident) 1 font-lock-type-face)