Method remove

crates/execution/txpool/src/invalidation.rs:227–241

Removes `hash` from the index, unlinking it from each of its watched keys and pruning any key bucket left empty. Returns the transaction's watch set if it was present.

(&mut self, hash: &TxHash)

    /// keys and pruning any key bucket left empty. Returns the transaction's
    /// watch set if it was present.
    pub fn remove(&mut self, hash: &TxHash) -> Option<WatchSet> {
        let watch = self.watch_sets.remove(hash)?;
        for key in watch.keys() {
            if let Some(bucket) = self.by_key.get_mut(key) {
                bucket.remove(hash);
                if bucket.is_empty() {
                    self.by_key.remove(key);
                    if let InvalidationKey::ExpiryBucket(bucket) = key {
                        self.expiry_buckets.remove(bucket);
                    }
                }
            }
        }
        Some(watch)
    }

    /// Returns `true` if `hash` is registered.
    #[must_use]