def metadata

mylsm-lsm-store@0.6.0.1 · src/scan/ByteBlockReader.bend:116

import Base

116# Returns compact file metadata while preserving the owned reader.
117def metadata(reader: Reader) -> Metadata & Reader:
118  match reader:
119    case Reader{file, state}:
120      match state:
121        case State{+size, header, +index_offset, used, +total,
122            +block_count, next_block, decoded, root_hash, index_hash,
123            last_key, selected}:
124          (Metadata{size, total, block_count, index_offset, 0n, 0n},
125            Reader{file, State{size, header, index_offset, used, total,
126              block_count, next_block, decoded, root_hash, index_hash,
127              last_key, selected}})