1 files changed, 12 insertions, 0 deletions
diff --git a/rust-mode.el b/rust-mode.el
index 6da7db5..09eefed 100644
--- a/rust-mode.el
+++ b/rust-mode.el
@@ -361,6 +361,16 @@ See `prettify-symbols-compose-predicate'."
     "bool"
     "str" "char"))
 
+(defconst rust-number-with-type
+  (eval-when-compile
+    (concat
+     "\\_<\\(?:0[box]?\\|[1-9]\\)[[:digit:]a-fA-F_.]*\\(?:[eE][+-]?[[:digit:]_]\\)?"
+     (regexp-opt '("u8" "i8" "u16" "i16" "u32" "i32" "u64" "i64"
+                   "u128" "i128" "usize" "isize" "f32" "f64")
+                 t)
+     "\\_>"))
+  "Regular expression matching a number with a type suffix.")
+
 (defvar rust-builtin-formatting-macros
   '("eprint"
     "eprintln"
@@ -470,6 +480,8 @@ Does not match type annotations of the form \"foo::<\"."
      ("\\?" . 'rust-question-mark)
      ("\\(&+\\)\\(?:'\\(?:\\<\\|_\\)\\|\\<\\|[[({:*_|]\\)"
       1 'rust-ampersand-face)
+     ;; Numbers with type suffix
+     (,rust-number-with-type 1 font-lock-type-face)
      )
 
    ;; Ensure we highlight `Foo` in `struct Foo` as a type.