Struct PathMerkle 

pub struct PathMerkle;

Manages path-based Merkle tree operations.

This is the local computation layer - storage is handled by RedisMerkleStore.

Implementations

impl PathMerkle

pub fn split_path(object_id: &str) -> Vec<&str>

Split an object_id into path segments.

uk.nhs.patient.record.123 -> ["uk", "nhs", "patient", "record", "123"]

pub fn parent_prefix(path: &str) -> &str

Get the parent prefix for a path.

uk.nhs.patient.record.123 -> uk.nhs.patient.record uk -> "" (root)

pub fn ancestor_prefixes(path: &str) -> Vec<String>

Get all ancestor prefixes for a path (excluding root, including self).

uk.nhs.patient -> ["uk", "uk.nhs", "uk.nhs.patient"]

pub fn leaf_hash( object_id: &str, version: u64, payload_hash: &[u8; 32], ) -> [u8; 32]

Compute the leaf hash for a sync item.

Hash = SHA256(object_id || version || payload_hash)

Note: We intentionally exclude timestamp to ensure idempotent updates. Two writes with identical content should produce the same Merkle root, regardless of when they occurred. This prevents false sync conflicts.

pub fn payload_hash(payload: &[u8]) -> [u8; 32]

Compute hash of a payload (for leaf_hash input).

Trait Implementations

impl Debug for PathMerkle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.