Struct FingerprintBuilder 

pub struct FingerprintBuilder { /* private fields */ }

Length-delimited deterministic SHA-256 input builder.

Implementations

impl FingerprintBuilder

pub fn new() -> Self

Starts a fingerprint with a domain-separation marker and 512 MiB field budget.

pub fn with_max_bytes(max_bytes: usize) -> Result<Self>

Starts a fingerprint with an aggregate budget for all framed fields.

pub fn field(&mut self, name: &str, bytes: &[u8]) -> Result<()>

Adds one named byte field with unambiguous length boundaries.

pub fn serialized<T: Serialize>(&mut self, name: &str, value: &T) -> Result<()>

Serializes canonical field-order JSON directly into the digest.

Serialization runs once for bounded sizing and once for hashing so the length prefix can precede the payload without retaining a JSON buffer. Custom Serialize implementations must produce the same bytes in both passes; a size change fails without mutating the builder.

pub fn finish(self) -> DocumentFingerprint

Finishes the digest.

Trait Implementations

impl Default for FingerprintBuilder

fn default() -> Self

Returns the “default value” for a type.