Add named stores to the processor

packages/style-engine/class-wp-style-engine-css-rules-store.php

@@ -27,6 +27,14 @@ class WP_Style_Engine_CSS_Rules_Store {
 	 */
 	protected static $stores = array();
 
+
+	/**
+	 * The store name.
+	 *
+	 * @var string
+	 */
+	protected $name = '';
+
 	/**
 	 * An array of CSS Rules objects assigned to the store.
 	 *
@@ -44,6 +52,8 @@ class WP_Style_Engine_CSS_Rules_Store {
 	public static function get_store( $store_name = 'default' ) {
 		if ( ! isset( static::$stores[ $store_name ] ) ) {
 			static::$stores[ $store_name ] = new static();
+			// Set the store name.
+			static::$stores[ $store_name ]->name = $store_name;
 		}
 		return static::$stores[ $store_name ];
 	}
@@ -66,6 +76,15 @@ public static function remove_all_stores() {
 		static::$stores = array();
 	}
 
+	/**
+	 * Get the store name.
+	 *
+	 * @return string
+	 */
+	public function get_name() {
+		return $this->name;
+	}
+
 	/**
 	 * Get an array of all rules.
 	 *

packages/style-engine/class-wp-style-engine-processor.php

@@ -38,7 +38,7 @@ class WP_Style_Engine_Processor {
 	 * @param WP_Style_Engine_CSS_Rules_Store $store The store to add.
 	 */
 	public function add_store( WP_Style_Engine_CSS_Rules_Store $store ) {
-		$this->stores[] = $store;
+		$this->stores[ $store->get_name() ] = $store;
 	}
 
 	/**