Function warnOnSymbolTypeImpl

packages/react-reconciler/src/ReactChildFiber.js:379–405

(returnFiber: Fiber, invalidChild: symbol)

}

function warnOnSymbolTypeImpl(returnFiber: Fiber, invalidChild: symbol) {
  if (__DEV__) {
    const parentName = getComponentNameFromFiber(returnFiber) || 'Component';

    if (ownerHasSymbolTypeWarning[parentName]) {
      return;
    }
    ownerHasSymbolTypeWarning[parentName] = true;

    // eslint-disable-next-line react-internal/safe-string-coercion
    const name = String(invalidChild);

    if (returnFiber.tag === HostRoot) {
      console.error(
        'Symbols are not valid as a React child.\n' + '  root.render(%s)',
        name,
      );
    } else {
      console.error(
        'Symbols are not valid as a React child.\n' + '  <%s>%s</%s>',
        parentName,
        name,
        parentName,
      );
    }
  }
}

function warnOnSymbolType(returnFiber: Fiber, invalidChild: symbol) {
  const debugTask = getCurrentDebugTask();