fn update_index_by_hash<H: Eq + Hash, P: Ord>(
index: &mut HashMap<H, P>,
hash: H,
pos: P,
)
Expand description
Update an index mapping hashes of objects to their positions in the ledger.
This function will insert the mapping from hash
to pos
into index
, unless there is
already an entry for hash
at an earlier position in the ledger.