Ticket #10971: l10n-translation-empty-class.patch

wp-includes/l10n.php

@@ -396 +396 @@
 }
 
 /**
+ * Empty translation class used when no Translation object is available
+ * for domain.
+ *
+ * @package WordPress
+ * @since 2.9.0
+ */
+Class Empty_Translation {
+        function translate($text, $context = '') {
+                return $text;
+        }
+
+        function translate_plural($single, $plural, $number) {
+                return $number == 1 ? $single : $plural;
+        }
+}
+
+/**
  * Returns the Translations instance for a domain. If there isn't one,
- * returns empty Translations instance.
+ * returns Empty_Translations instance. That means the only valid methods
+ * are translate() and translate_plural().
  *
  * @param string $domain
- * @return object A Translation instance
+ * @return object An (Empty_)Translation instance
  */
 function &get_translations_for_domain( $domain ) {
         global $l10n;
-        $empty = &new Translations;
+        static $empty;
+
         if ( isset($l10n[$domain]) )
                 return $l10n[$domain];
-        else
+        else {
+                if (!isset($empty))
+                        $empty = &new Empty_Translation();
                 return $empty;
+        }
 }
 
 /**