Function validateFunctionComponentInDev

docs/index.js:27332–27357

(workInProgress, Component)

      return workInProgress.child;
    }
    function validateFunctionComponentInDev(workInProgress, Component) {
      Component &&
        Component.childContextTypes &&
        console.error(
          "childContextTypes cannot be defined on a function component.\n  %s.childContextTypes = ...",
          Component.displayName || Component.name || "Component"
        );
      "function" === typeof Component.getDerivedStateFromProps &&
        ((workInProgress = getComponentNameFromType(Component) || "Unknown"),
        didWarnAboutGetDerivedStateOnFunctionComponent[workInProgress] ||
          (console.error(
            "%s: Function components do not support getDerivedStateFromProps.",
            workInProgress
          ),
          (didWarnAboutGetDerivedStateOnFunctionComponent[workInProgress] =
            !0)));
      "object" === typeof Component.contextType &&
        null !== Component.contextType &&
        ((Component = getComponentNameFromType(Component) || "Unknown"),
        didWarnAboutContextTypeOnFunctionComponent[Component] ||
          (console.error(
            "%s: Function components do not support contextType.",
            Component
          ),
          (didWarnAboutContextTypeOnFunctionComponent[Component] = !0)));
    }
    function mountSuspenseOffscreenState(renderLanes) {
      return { baseLanes: renderLanes, cachePool: getSuspendedCache() };
    }