Add js2-language-version checks

diff --git a/js2-mode.el b/js2-mode.el
index d62c069997fd8c0abec13f1e483b9895baa21521..ad631345787157580884b7ccb718d53f88f31874 100644 (file)
--- a/js2-mode.el
+++ b/js2-mode.el
@@ -5553,10 +5553,12 @@ its relevant fields and puts it into `js2-ti-tokens'."
              ((or (eq c ?x) (eq c ?X))
               (setq base 16)
               (setq c (js2-get-char)))
-             ((or (eq c ?b) (eq c ?B))
+             ((and (or (eq c ?b) (eq c ?B))
+                   (>= js2-language-version 200))
               (setq base 2)
               (setq c (js2-get-char)))
-             ((or (eq c ?o) (eq c ?O))
+             ((and (or (eq c ?o) (eq c ?O))
+                   (>= js2-language-version 200))
               (setq base 8)
               (setq c (js2-get-char)))
              ((js2-digit-p c)