tuple: change constant to UNTYPED_TUPLE_TYPE

Author: muzarski

scylla-rust-wrapper/src/tuple.rs

@@ -6,7 +6,7 @@ use crate::value;
 use crate::value::CassCqlValue;
 use std::sync::Arc;
 
-static EMPTY_TUPLE_TYPE: CassDataType = CassDataType::Tuple(Vec::new());
+static UNTYPED_TUPLE_TYPE: CassDataType = CassDataType::Tuple(Vec::new());
 
 #[derive(Clone)]
 pub struct CassTuple {
@@ -89,7 +89,7 @@ unsafe extern "C" fn cass_tuple_free(tuple: *mut CassTuple) {
 unsafe extern "C" fn cass_tuple_data_type(tuple: *const CassTuple) -> *const CassDataType {
     match &ptr_to_ref(tuple).data_type {
         Some(t) => Arc::as_ptr(t),
-        None => &EMPTY_TUPLE_TYPE,
+        None => &UNTYPED_TUPLE_TYPE,
     }
 }