Struct ImprintState 

pub struct ImprintState<'context, 'reader, 'document, P: AsnDigest<'document>, E> { /* private fields */ }

One unfinished state of this operation’s exact resolved identity. Dropping it unfinished prevents a successful computation, even if another alternative matched. Opaque provider state owns its admitted storage.

Implementations

impl<'context, 'reader, 'document, P: AsnDigest<'document>, E> ImprintState<'context, 'reader, 'document, P, E>

pub fn write(&mut self, bytes: &[u8]) -> Result<(), Refused>

Admits and hashes one original/generated chunk. An ignored failure cannot be repaired by subsequent writes or finalization.

pub fn write_from( &mut self, bytes: &[u8], origin: &Reader<'_>, ) -> Result<(), Refused>

Hashes a range from another original reader, with that origin and the current operation admitted together. The caller’s format kernel binds bytes to that original source before invoking this operation.

pub fn finish( self, ) -> Result<ImprintDigest<'context, 'reader, 'document, P, E>, Refused>

Consumes the state exactly once. A wrong provider output width refuses before exposing it for an intermediate tree or final comparison.

Panics

If the internal ownership invariant is violated. The consuming public API retains its backend state until this single completion.

Trait Implementations

impl<'document, P: AsnDigest<'document>, E> Drop for ImprintState<'_, '_, 'document, P, E>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.