Add error message if options is not an OptionSourceInterface

Author: jissereitsma

view/adminhtml/templates/form/field_type/select.phtml

@@ -1,15 +1,14 @@
 <?php
 declare(strict_types=1);
 
-/** @version 0.3.3 */
-
 use Magento\Framework\Data\OptionSourceInterface;
 use Magento\Framework\Escaper;
 use Magento\Framework\View\Element\Template;
 use Loki\AdminComponents\Form\Field\Field;
 use Loki\AdminComponents\Form\Field\FieldType\Select;
 use Loki\Components\Util\Block\TemplateRenderer;
 
+/** @version 0.3.3 */
 /** @var Template $block */
 /** @var Field $field */
 /** @var Select $fieldType */
@@ -22,6 +21,11 @@ $options = $field->getOptions();
 $emptyOption = $field->getEmptyOption();
 $fieldType = $field->getFieldType();
 $fieldAttributes = $field->getFieldAttributes();
+
+if (false === $options instanceof OptionSourceInterface) {
+    echo '$options is not a proper instance';
+    return;
+}
 ?>
 <select
     aria-label="<?= $escaper->escapeHtml($field->getLabel()) ?>"