state_processing: nicer attestation swap

2019-05-15 17:14:07 +10:00 · 2019-05-15 17:14:07 +10:00 · 137afa9131
commit 137afa9131
parent e4bbcd333a
1 changed files with 2 additions and 5 deletions
--- a/eth2/state_processing/src/per_epoch_processing.rs
+++ b/eth2/state_processing/src/per_epoch_processing.rs
@ -250,11 +250,8 @@ pub fn process_final_updates<T: EthSpec>(
    }

    // Rotate current/previous epoch attestations
-    std::mem::swap(
-        &mut state.previous_epoch_attestations,
-        &mut state.current_epoch_attestations,
-    );
-    state.current_epoch_attestations = vec![];
+    state.previous_epoch_attestations =
+        std::mem::replace(&mut state.current_epoch_attestations, vec![]);

    Ok(())
 }