Struct Decoder 

pub struct Decoder<'a> { /* private fields */ }

Push-driven SHA-1/SHA-256 pack decoder with fixed inline state and one caller-owned 32 KiB inflate window. Neither input nor output is retained. Supports plain, offset-delta and reference-delta entries, including thin packs; checking base existence and graph connectivity is a host operation.

Preserve the unconsumed input suffix between calls. EntryEnd can include the final body fragment in written; persist it before handling the event. Every error is terminal, and all previously staged data must be discarded. No ref may be published before Finished and host object/graph validation.

Implementations

impl<'a> Decoder<'a>

pub fn new( format: ObjectFormat, window: &'a mut [u8; 32768], limits: DecodeLimits, ) -> Self

pub fn position(&self) -> u64

pub fn update( &mut self, input: &[u8], output: &mut [u8], end_of_input: bool, ) -> Result<DecodeProgress>

end_of_input asserts that this slice contains the final available bytes. Events and output exhaustion can return before consuming it all; resubmit the remaining suffix with the same flag. A request for more input at EOF is an error. Bytes after the trailer are always rejected.

pub fn finish(&self) -> Result<ObjectId>

Require a verified trailer. An early call does not invalidate decoding; the host can continue supplying data. Transport EOF remains the host’s responsibility, including checking for data after a verified trailer.