public static function with_errors(Formlet $other)
{
return $other->mapHTML(V::fn(function ($dict, $html) {
$name = self::html_get_depth_first_name($html);
if ($name === null) {
throw new Exception("_with_errors applied to un-named Formlet.");
}
$errors = $dict->errors($name);
if ($errors === null) {
return $html;
}
foreach ($errors as $error) {
$html = H::concat($html, H::tag("span", array("class" => "error"), H::text($error)));
}
return $html;
}));
}
