Function emitIOInfoChunk

packages/react-server/src/ReactFlightServer.js:4345–4396

(
  request: Request,
  id: number,
  name: string,
  start: number,
  end: number,
  value: ?Promise<mixed>,
  env: ?string,
  owner: ?ReactComponentInfo,
  stack: ?ReactStackTrace,
)

}

function emitIOInfoChunk(
  request: Request,
  id: number,
  name: string,
  start: number,
  end: number,
  value: ?Promise<mixed>,
  env: ?string,
  owner: ?ReactComponentInfo,
  stack: ?ReactStackTrace,
): void {
  if (!__DEV__) {
    // These errors should never make it into a build so we don't need to encode them in codes.json
    // eslint-disable-next-line react-internal/prod-error-codes
    throw new Error(
      'emitIOInfoChunk should never be called in production mode. This is a bug in React.',
    );
  }

  let objectLimit = 10;
  if (stack) {
    objectLimit += stack.length;
  }

  const relativeStartTimestamp = start - request.timeOrigin;
  const relativeEndTimestamp = end - request.timeOrigin;
  const debugIOInfo: Omit<ReactIOInfo, 'debugTask' | 'debugStack'> = {
    name: name,
    start: relativeStartTimestamp,
    end: relativeEndTimestamp,
  };
  if (env != null) {
    // $FlowFixMe[cannot-write]
    debugIOInfo.env = env;
  }
  if (stack != null) {
    // $FlowFixMe[cannot-write]
    debugIOInfo.stack = stack;
  }
  if (owner != null) {
    // $FlowFixMe[cannot-write]
    debugIOInfo.owner = owner;
  }
  if (value !== undefined) {
    // $FlowFixMe[cannot-write]
    debugIOInfo.value = value;
  }
  const json: string = serializeDebugModel(request, objectLimit, debugIOInfo);
  const row = id.toString(16) + ':J' + json + '\n';
  const processedChunk = stringToChunk(row);
  request.completedDebugChunks.push(processedChunk);
}

function outlineIOInfo(request: Request, ioInfo: ReactIOInfo): void {
  if (request.writtenObjects.has(ioInfo)) {