Function finishClassComponent

docs/external/js/react-dom.development.js:17262–17327

(current, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime)

  }

  function finishClassComponent(current, workInProgress, Component, shouldUpdate, hasContext, renderExpirationTime) {
    // Refs should update even if shouldComponentUpdate returns false
    markRef(current, workInProgress);
    var didCaptureError = (workInProgress.effectTag & DidCapture) !== NoEffect;

    if (!shouldUpdate && !didCaptureError) {
      // Context providers should defer to sCU for rendering
      if (hasContext) {
        invalidateContextProvider(workInProgress, Component, false);
      }

      return bailoutOnAlreadyFinishedWork(current, workInProgress, renderExpirationTime);
    }

    var instance = workInProgress.stateNode; // Rerender

    ReactCurrentOwner$1.current = workInProgress;
    var nextChildren;

    if (didCaptureError && typeof Component.getDerivedStateFromError !== 'function') {
      // If we captured an error, but getDerivedStateFromError is not defined,
      // unmount all the children. componentDidCatch will schedule an update to
      // re-render a fallback. This is temporary until we migrate everyone to
      // the new API.
      // TODO: Warn in a future release.
      nextChildren = null;

      {
        stopProfilerTimerIfRunning();
      }
    } else {
      {
        setIsRendering(true);
        nextChildren = instance.render();

        if ( workInProgress.mode & StrictMode) {
          instance.render();
        }

        setIsRendering(false);
      }
    } // React DevTools reads this flag.


    workInProgress.effectTag |= PerformedWork;

    if (current !== null && didCaptureError) {
      // If we're recovering from an error, reconcile without reusing any of
      // the existing children. Conceptually, the normal children and the children
      // that are shown on error are two different sets, so we shouldn't reuse
      // normal children even if their identities match.
      forceUnmountCurrentAndReconcile(current, workInProgress, nextChildren, renderExpirationTime);
    } else {
      reconcileChildren(current, workInProgress, nextChildren, renderExpirationTime);
    } // Memoize state using the values we just used to render.
    // TODO: Restructure so we never read values from the instance.