Function rebuildLevel

rebuildLevel(
    cursor: Cursor,
    updts: Updts,
    state: State,
    average: number,
    level: number,
): AsyncIterable<ProllyTreeDiff>
s Rebuilds a level of the tree.

Only yields diffs when the level is changed. Entry diffs are only yielded on level 0. Writes to the state.removedBuckets array if a level 0 bucket is changed/removed/added. Writes to the state.newRoot if a new root is found. A new root is found when the tail and head buckets were changed and only one bucket was rebuilt for the level.
Parameters
- cursor: Cursor
  The cursor to the current tree.
- updts: Updts
  The state of the updates for the tree.
- state: State
  The state of the mutation.
- average: number
  The average number of entries per bucket.
- level: number
  The level to be rebuilt.
Returns AsyncIterable<ProllyTreeDiff>
- Defined in src/mutate.ts:316