jinja : correct default size for string slices (#19913)

diff --git a/common/jinja/runtime.cpp b/common/jinja/runtime.cpp
index c93e182a7e25fdce5e32d18b4afd406a66245bdc..5757c76b7a1b7c6a906a68f4ca1d03728b6b519f 100644 (file)
--- a/common/jinja/runtime.cpp
+++ b/common/jinja/runtime.cpp
@@ -721,6 +721,8 @@ value member_expression::execute_impl(context & ctx) {
         int64_t arr_size = 0;
         if (is_val<value_array>(object)) {
             arr_size = object->as_array().size();
+        } else if (is_val<value_string>(object)) {
+            arr_size = object->as_string().length();
         }
 
         if (is_stmt<slice_expression>(this->property)) {