Method deserialize_raw

src/models/serializer/hnsw/node.rs:205–258

(
        bufman: &BufferManager,
        latest_version_links_bufman: &FilelessBufferManager,
        cursor: u64,
        latest_version_links_cursor: u64,
        FileOffset(offset): FileOffset,
  

    );

    fn deserialize_raw(
        bufman: &BufferManager,
        latest_version_links_bufman: &FilelessBufferManager,
        cursor: u64,
        latest_version_links_cursor: u64,
        FileOffset(offset): FileOffset,
        file_id: IndexFileId,
        cache: &HNSWIndexCache,
    ) -> Result<Self::Raw, BufIoError> {
        bufman.seek_with_cursor(cursor, offset as u64)?;
        // Read basic fields
        let hnsw_level = HNSWLevel(bufman.read_u8_with_cursor(cursor)?);
        let version = VersionNumber::from(bufman.read_u32_with_cursor(cursor)?);
        // Read prop_value
        let prop_offset = FileOffset(bufman.read_u32_with_cursor(cursor)?);
        let prop_length = BytesToRead(bufman.read_u32_with_cursor(cursor)?);
        let prop = cache.get_prop(prop_offset, prop_length)?;

        // Read prop_metadata
        let metadata_offset = bufman.read_u32_with_cursor(cursor)?;
        let metadata_length = bufman.read_u32_with_cursor(cursor)?;
        let metadata = if metadata_offset != u32::MAX {
            Some(
                cache
                    .get_prop_metadata(FileOffset(metadata_offset), BytesToRead(metadata_length))?,
            )
        } else {
            None
        };

        let parent_offset = FileOffset(bufman.read_u32_with_cursor(cursor)?);
        let child_offset = FileOffset(bufman.read_u32_with_cursor(cursor)?);

        let neighbors = Neighbors::deserialize_raw(
            bufman,
            latest_version_links_bufman,
            cursor,
            latest_version_links_cursor,
            // @NOTE: 29 = 21 (properties) + 4 (parent) + 4 (child)
            FileOffset(offset + 29),
            file_id,
            cache,
        )?;

        Ok((
            hnsw_level,
            version,
            prop,
            metadata,
            neighbors,
            parent_offset,
            child_offset,
        ))
    }
}