Function serializeDebugErrorValue

packages/react-server/src/ReactFlightServer.js:4099–4133

(request: Request, error: Error)

}

function serializeDebugErrorValue(request: Request, error: Error): string {
  if (__DEV__) {
    let name: string = 'Error';
    let message: string;
    let stack: ReactStackTrace;
    let env = (0, request.environmentName)();
    try {
      name = error.name;
      // eslint-disable-next-line react-internal/safe-string-coercion
      message = String(error.message);
      stack = filterStackTrace(request, parseStackTrace(error, 0));
      const errorEnv = (error: any).environmentName;
      if (typeof errorEnv === 'string') {
        // This probably came from another FlightClient as a pass through.
        // Keep the environment name.
        env = errorEnv;
      }
    } catch (x) {
      message = 'An error occurred but serializing the error message failed.';
      stack = [];
    }
    const errorInfo: ReactErrorInfoDev = {name, message, stack, env};
    const id = outlineDebugModel(
      request,
      {objectLimit: stack.length * 2 + 1},
      errorInfo,
    );
    return '$Z' + id.toString(16);
  } else {
    // In prod we don't emit any information about this Error object to avoid
    // unintentional leaks. Since this doesn't actually throw on the server
    // we don't go through onError and so don't register any digest neither.
    return '$Z';
  }
}

function emitErrorChunk(
  request: Request,