diff --git a/src/protocol/mod.rs b/src/protocol/mod.rs
index 7a24b96535d8103cb1f74cf06665c8af8a27de4f..bde521997b2e5106181ba3f188786982d15f7c09 100644
--- a/src/protocol/mod.rs
+++ b/src/protocol/mod.rs
@@ -324,6 +324,11 @@ pub struct StructTypeInspector<'a> {
 }
 
 impl StructTypeInspector<'_> {
+    /// Retrieves number of struct fields
+    pub fn get_num_struct_fields(&self) -> usize {
+        return self.heap.fields.len();
+    }
+
     /// Retrieves struct field index
     pub fn get_struct_field_index(&self, field_name: &[u8]) -> Option<usize> {
         let field_index = self.heap.fields.iter()