Method parseMetadataKinds

src/lib/Bitcode/Reader/MetadataLoader.cpp:1960–1995

Parse the metadata kinds out of the METADATA_KIND_BLOCK.

/// Parse the metadata kinds out of the METADATA_KIND_BLOCK.
Error MetadataLoader::MetadataLoaderImpl::parseMetadataKinds() {
  if (Stream.EnterSubBlock(bitc::METADATA_KIND_BLOCK_ID))
    return error("Invalid record");

  SmallVector<uint64_t, 64> Record;

  // Read all the records.
  while (true) {
    BitstreamEntry Entry = Stream.advanceSkippingSubblocks();

    switch (Entry.Kind) {
    case BitstreamEntry::SubBlock: // Handled for us already.
    case BitstreamEntry::Error:
      return error("Malformed block");
    case BitstreamEntry::EndBlock:
      return Error::success();
    case BitstreamEntry::Record:
      // The interesting case.
      break;
    }

    // Read a record.
    Record.clear();
    ++NumMDRecordLoaded;
    unsigned Code = Stream.readRecord(Entry.ID, Record);
    switch (Code) {
    default: // Default behavior: ignore.
      break;
    case bitc::METADATA_KIND: {
      if (Error Err = parseMetadataKindRecord(Record))
        return Err;
      break;
    }
    }
  }
}

MetadataLoader &MetadataLoader::operator=(MetadataLoader &&RHS) {
  Pimpl = std::move(RHS.Pimpl);