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fix(chain): KeychainTxOutIndex::lookahead_to_target

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志宇
2024-02-17 02:20:44 +08:00
parent 50c549b5ac
commit c151d8fd23
2 changed files with 104 additions and 4 deletions
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13
crates/chain/src/keychain/txout_index.rs
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@@ -326,12 +326,17 @@ impl<K: Clone + Ord + Debug> KeychainTxOutIndex<K> {
self.lookahead
}
/// Store lookahead scripts until `target_index`.
/// Store lookahead scripts until `target_index` (inclusive).
///
/// This does not change the `lookahead` setting.
/// This does not change the global `lookahead` setting.
pub fn lookahead_to_target(&mut self, keychain: &K, target_index: u32) {
let next_index = self.next_store_index(keychain);
if let Some(temp_lookahead) = target_index.checked_sub(next_index).filter(|&v| v > 0) {
let (next_index, _) = self.next_index(keychain);
let temp_lookahead = (target_index + 1)
.checked_sub(next_index)
.filter(|&index| index > 0);
if let Some(temp_lookahead) = temp_lookahead {
self.replenish_lookahead(keychain, temp_lookahead);
}
}