Skip '@Keyframes' rules when parsing selectors #3

Author: RadValentin

index.js

@@ -8,9 +8,13 @@ module.exports = function (options) {
   if (!/\s+$/.test(prefix)) prefix += ' '
   return function (root) {
     root.walkRules(function (rule) {
+      if (rule.parent && rule.parent.name == 'keyframes') {
+        return
+      }
+
       rule.selectors = rule.selectors.map(function (selector) {
         if (options.exclude && ~options.exclude.indexOf(selector)) {
-          return selector;
+          return selector
         }
         return prefix + selector
       })

test/test.js

@@ -31,6 +31,15 @@ it('should avoid prefixing excluded selectors', function () {
   assert(~out.indexOf('.hello .a'))
   assert(~out.indexOf('.hello .b'))
   assert(~out.indexOf('.hello .c'))
-  assert(out.indexOf('.hello body'))
-  assert(out.indexOf('.hello .a *:not(.b)'))
+  assert(!~out.indexOf('.hello body'))
+  assert(!~out.indexOf('.hello .a *:not(.b)'))
+})
+
+it('should skip @keyframes selectors', function () {
+  var out = postcss().use(prefix({
+    prefix: '.hello '
+  })).process('@keyframes anim {from {} to {}}').css
+
+  assert(!~out.indexOf('.hello from'))
+  assert(!~out.indexOf('.hello to'))
 })