Before reparsing a selector that need a double pass, you should revert [self] to & #368

Author: Cerdic

src/Compiler.php

@@ -1359,6 +1359,7 @@ protected function evalSelectors($selectors)
 
         // after evaluating interpolates, we might need a second pass
         if ($this->shouldEvaluate) {
+            $selectors = $this->revertSelfSelector($selectors);
             $buffer = $this->collapseSelectors($selectors);
             $parser = $this->parserFactory(__METHOD__);
 
@@ -1440,6 +1441,24 @@ function ($value, $key) use (&$output) {
         return implode(', ', $parts);
     }
 
+    /**
+     * Parse down the selector and revert [self] to "&" before a reparsing
+     * @param array $selectors
+     * @return array
+     */
+    protected function revertSelfSelector($selectors) {
+        foreach ($selectors as &$part) {
+            if (is_array($part)) {
+                if ($part === [Type::T_SELF]) {
+                    $part = '&';
+                } else {
+                    $part = $this->revertSelfSelector($part);
+                }
+            }
+        }
+        return $selectors;
+    }
+
     /**
      * Flatten selector single; joins together .classes and #ids
      *