0
@@ -313,6 +313,17 @@ module Sass
0
     #   foo bar baz
0
     #     color: red
0
     #
0
+    # and
0
+    #
0
+    #   foo
0
+    #     &.bar
0
+    #       color: blue
0
+    #
0
+    # becomes
0
+    #
0
+    #   foo.bar
0
+    #     color: blue
0
+    #
0
     def flatten_rules(root)
0
       root.children.each { |child| flatten_rule(child) if child.is_a?(Tree::RuleNode) }
0
     end
0
@@ -320,7 +331,13 @@ module Sass
0
     def flatten_rule(rule)
0
       while rule.children.size == 1 && rule.children.first.is_a?(Tree::RuleNode)
0
         child = rule.children.first
0
-        rule.rule = "#{rule.rule} #{child.rule}"
0
+
0
+        if child.rule[0] == ?&
0
+          rule.rule = child.rule.gsub /^&/, rule.rule
0
+        else
0
+          rule.rule = "#{rule.rule} #{child.rule}"
0
+        end
0
+
0
         rule.children = child.children
0
       end
0