Function update_leaf_content

atomic-core/src/apply/file_ops.rs:992–1010

Update a leaf's content.

(
    txn: &mut T,
    leaf_id: LeafId,
    new_content: &[u8],
)

/// Update a leaf's content.
fn update_leaf_content<T: MutTxnT>(
    txn: &mut T,
    leaf_id: LeafId,
    new_content: &[u8],
) -> PristineResult<()> {
    let key = encode_leaf_id(&leaf_id);

    // Get existing leaf
    if let Some(mut serialized) = txn.get_crdt_leaf(&key)? {
        // Update content range (actual content is in the change's content blob)
        serialized.content_end = serialized.content_start + new_content.len() as u32;

        // Re-encode and store
        let value = encode_leaf_value(&serialized);
        txn.put_crdt_leaf(&key, &value)?;
    }

    Ok(())
}

// Tests