fix: Don't drop objects on empty buffers (pola-rs#18469)

r-brink · Aug 30, 2024 · ae3c647 · ae3c647
1 parent 910fc03
commit ae3c647
Showing 1 changed file with 2 additions and 3 deletions.
diff --git a/crates/polars-core/src/chunked_array/object/extension/drop.rs b/crates/polars-core/src/chunked_array/object/extension/drop.rs
@@ -39,10 +39,9 @@ pub(crate) unsafe fn drop_object_array(values: &dyn Array) {
         .downcast_ref::<FixedSizeBinaryArray>()
         .unwrap();
 
-    // if the buf is not shared with anyone but us
-    // we can deallocate
+    // If the buf is not shared with anyone but us we can deallocate.
     let buf = arr.values();
-    if buf.shared_count_strong() == 1 {
+    if buf.shared_count_strong() == 1 && !buf.is_empty() {
         PolarsExtension::new(arr.clone());
     };
 }