Method oid_from_offset

src/loose.rs:467–478

(&self, offset: usize, algo: HashAlgorithm)

    }

    fn oid_from_offset(&self, offset: usize, algo: HashAlgorithm) -> Option<ObjectID> {
        let aparams = self.obj_formats.get(&algo)?;

        let mut hash = [0u8; GIT_MAX_RAWSZ];
        let len = algo.raw_len();
        let oid_off = aparams.full_off + (offset * len);
        hash[0..len].copy_from_slice(&self.memory[oid_off..oid_off + len]);
        Some(ObjectID {
            hash,
            algo: algo as u32,
        })
    }

    fn u32_at_offset(slice: &[u8], offset: usize) -> u32 {
        u32::from_be_bytes(slice[offset..offset + 4].try_into().unwrap())