Function finishClassComponent

packages/react-server/src/ReactFizzServer.js:2362–2415

(
  request: Request,
  task: Task,
  keyPath: KeyNode,
  instance: any,
  Component: any,
  props: any,
)

}

function finishClassComponent(
  request: Request,
  task: Task,
  keyPath: KeyNode,
  instance: any,
  Component: any,
  props: any,
): ReactNodeList {
  let nextChildren;
  if (__DEV__) {
    nextChildren = (callRenderInDEV(instance): any);
  } else {
    nextChildren = instance.render();
  }
  if (request.status === ABORTING) {
    // eslint-disable-next-line no-throw-literal
    throw null;
  }

  if (__DEV__) {
    if (instance.props !== props) {
      if (!didWarnAboutReassigningProps) {
        console.error(
          'It looks like %s is reassigning its own `this.props` while rendering. ' +
            'This is not supported and can lead to confusing bugs.',
          getComponentNameFromType(Component) || 'a component',
        );
      }
      didWarnAboutReassigningProps = true;
    }
  }

  if (!disableLegacyContext) {
    const childContextTypes = Component.childContextTypes;
    if (childContextTypes !== null && childContextTypes !== undefined) {
      const previousContext = task.legacyContext;
      const mergedContext = processChildContext(
        instance,
        Component,
        previousContext,
        childContextTypes,
      );
      task.legacyContext = mergedContext;
      renderNodeDestructive(request, task, nextChildren, -1);
      task.legacyContext = previousContext;
      return;
    }
  }

  const prevKeyPath = task.keyPath;
  task.keyPath = keyPath;
  renderNodeDestructive(request, task, nextChildren, -1);
  task.keyPath = prevKeyPath;
}

export function resolveClassComponentProps(
  Component: any,