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ref(chain): Refactor next_store_index

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Rename `v` to `index` for better clarity, and add a comment explaining
the `range`
This commit is contained in:
Daniela Brozzoni 2024-01-08 14:46:25 +01:00
parent 9efaead8f1
commit 21d8875826
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1 changed files with 3 additions and 1 deletions
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crates/chain/src/keychain/txout_index.rs
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@ -206,9 +206,11 @@ impl<K: Clone + Ord + Debug> KeychainTxOutIndex<K> {
fn next_store_index(&self, keychain: &K) -> u32 { fn next_store_index(&self, keychain: &K) -> u32 {
self.inner() self.inner()
.all_spks() .all_spks()
// This range is filtering out the spks with a keychain different than
// `keychain`. We don't use filter here as range is more optimized.
.range((keychain.clone(), u32::MIN)..(keychain.clone(), u32::MAX)) .range((keychain.clone(), u32::MIN)..(keychain.clone(), u32::MAX))
.last() .last()
.map_or(0, |((_, v), _)| *v + 1) .map_or(0, |((_, index), _)| *index + 1)
} }
/// Generates script pubkey iterators for every `keychain`. The iterators iterate over all /// Generates script pubkey iterators for every `keychain`. The iterators iterate over all