See #829 - another performance optimization.

Why:

* Well, if a selector doesn't have a colon there is no point
  looking for any pseudo classes/elements.

diff --git a/lib/optimizer/is-mergeable.js b/lib/optimizer/is-mergeable.js
index 789ad3b..11b26e2 100644 (file)
--- a/lib/optimizer/is-mergeable.js
+++ b/lib/optimizer/is-mergeable.js
@@ -31,7 +31,7 @@ function isMergeable(selector, mergeablePseudoClasses, mergeablePseudoElements)
 
     if (singleSelector.length === 0 ||
         isDeepSelector(singleSelector) ||
-        !areMergeable(singleSelector, extractPseudoFrom(singleSelector), mergeablePseudoClasses, mergeablePseudoElements)) {
+        (singleSelector.indexOf(Marker.COLON) > -1 && !areMergeable(singleSelector, extractPseudoFrom(singleSelector), mergeablePseudoClasses, mergeablePseudoElements))) {
       return false;
     }
   }