check type in Smarty plugin

core/lib/Thelia/Core/Template/Smarty/Plugins/TheliaLoop.php

@@ -237,7 +237,15 @@ class TheliaLoop implements SmartyPluginInterface {
                 continue;
             }
 
-            /* check default */
+            /* check type */
+            if($value !== null && !$argument->type->isValid($value)) {
+                $faultActor[] = $argument->name;
+                $faultDetails[] = sprintf('Invalid value for "%s" argument', $argument->name);
+                continue;
+            }
+
+            /* set default */
+            /* did it as last checking for we consider default value is acceptable no matter type or empty restriction */
             if($value === null) {
                 $value = $argument->default;
             }

core/lib/Thelia/Type/TypeCollection.php

@@ -65,7 +65,7 @@ class TypeCollection implements \Iterator
      * (PHP 5 &gt;= 5.0.0)<br/>
      * Return the current element
      * @link http://php.net/manual/en/iterator.current.php
-     * @return \Thelia\Core\Template\Element\LoopResultRow
+     * @return \Thelia\Type\TypeInterface
      */
     public function current()
     {
@@ -116,4 +116,25 @@ class TypeCollection implements \Iterator
     {
         $this->position = 0;
     }
+
+    /**
+     * @param $value
+     *
+     * @return bool
+     */
+    public function isValid($value)
+    {
+        $this->rewind();
+        while ($this->valid()) {
+            $type = $this->current();
+
+            if($type->isValid($value)) {
+                return true;
+            }
+
+            $this->next();
+        }
+
+        return false;
+    }
 }