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chore: improve documentation of lookahead

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LLFourn 2023-12-29 16:40:48 +11:00
parent bc796f412a
commit c9467dcbb2
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1 changed files with 6 additions and 5 deletions
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11
crates/chain/src/keychain/txout_index.rs
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@ -117,11 +117,12 @@ impl<K: Clone + Ord + Debug> Indexer for KeychainTxOutIndex<K> {
impl<K> KeychainTxOutIndex<K> { impl<K> KeychainTxOutIndex<K> {
/// Construct a [`KeychainTxOutIndex`] with the given `lookahead`. /// Construct a [`KeychainTxOutIndex`] with the given `lookahead`.
/// ///
/// The lookahead is the number of scripts to cache ahead of the last revealed script index. /// The `lookahead` is the number of script pubkeys to derive and cache from the internal
/// This is useful to find outputs you own when processing block data that lie beyond the last /// descriptors over and above the last revealed script index. Without a lookahead the index
/// revealed index. In certain situations, such as when performing an initial scan of the /// will miss outputs you own when processing transactions whose output script pubkeys lie
/// blockchain during wallet import, it may be uncertain or unknown what the last revealed index /// beyond the last revealed index. In certain situations, such as when performing an initial
/// is. /// scan of the blockchain during wallet import, it may be uncertain or unknown what the index
/// of the last revealed script pubkey actually is.
pub fn new(lookahead: u32) -> Self { pub fn new(lookahead: u32) -> Self {
Self { Self {
inner: SpkTxOutIndex::default(), inner: SpkTxOutIndex::default(),