Function mountIndeterminateComponent

code/styling/public/app.js:10086–10173

(current, workInProgress, renderExpirationTime)

  }

  function mountIndeterminateComponent(current, workInProgress, renderExpirationTime) {
    !(current === null) ? invariant(false, 'An indeterminate component should never have mounted. This error is likely caused by a bug in React. Please file an issue.') : void 0;
    var fn = workInProgress.type;
    var props = workInProgress.pendingProps;
    var unmaskedContext = getUnmaskedContext(workInProgress);
    var context = getMaskedContext(workInProgress, unmaskedContext);

    var value = void 0;

    {
      if (fn.prototype && typeof fn.prototype.render === 'function') {
        var componentName = getComponentName(workInProgress) || 'Unknown';

        if (!didWarnAboutBadClass[componentName]) {
          warning(false, "The <%s /> component appears to have a render method, but doesn't extend React.Component. " + 'This is likely to cause errors. Change %s to extend React.Component instead.', componentName, componentName);
          didWarnAboutBadClass[componentName] = true;
        }
      }
      ReactCurrentOwner.current = workInProgress;
      value = fn(props, context);
    }
    // React DevTools reads this flag.
    workInProgress.effectTag |= PerformedWork;

    if (typeof value === 'object' && value !== null && typeof value.render === 'function' && value.$$typeof === undefined) {
      var Component = workInProgress.type;

      // Proceed under the assumption that this is a class instance
      workInProgress.tag = ClassComponent;

      workInProgress.memoizedState = value.state !== null && value.state !== undefined ? value.state : null;

      if (typeof Component.getDerivedStateFromProps === 'function') {
        var partialState = callGetDerivedStateFromProps(workInProgress, value, props, workInProgress.memoizedState);

        if (partialState !== null && partialState !== undefined) {
          workInProgress.memoizedState = _assign({}, workInProgress.memoizedState, partialState);
        }
      }

      // Push context providers early to prevent context stack mismatches.
      // During mounting we don't know the child context yet as the instance doesn't exist.
      // We will invalidate the child context in finishClassComponent() right after rendering.
      var hasContext = pushLegacyContextProvider(workInProgress);
      adoptClassInstance(workInProgress, value);
      mountClassInstance(workInProgress, renderExpirationTime);
      return finishClassComponent(current, workInProgress, true, hasContext, false, renderExpirationTime);
    } else {
      // Proceed under the assumption that this is a functional component
      workInProgress.tag = FunctionalComponent;
      {
        var _Component = workInProgress.type;

        if (_Component) {
          warning(!_Component.childContextTypes, '%s(...): childContextTypes cannot be defined on a functional component.', _Component.displayName || _Component.name || 'Component');
        }
        if (workInProgress.ref !== null) {
          var info = '';