React Hook + Memo support

[brandon-pereira]

Hey! Love the addon!

I'm getting a proptype warning when using with React hooks.

My component:

const Navigation = React.memo((props) => {
  return (<div />);
});

Navigation.defaultProps = {
  routes: []
};
Navigation.propTypes = {
  routes: PropTypes.array
};

logs warning:

checkPropTypes.js:19 Warning: Failed prop type: Invalid prop `type` of type `object` supplied to `PropTable`, expected `function`.
    in PropTable
    in Unknown
    in div
    in div
    in div
    in div
    in div
    in Story

When I remove the React.memo() wrapper around my component, the warning goes away.

I'm open to helping resolve the issue if needed. It seems to be like a prop warning (proptable is rendering fine) so maybe we can just make the prop type more generic?

[brandon-pereira]

Actually, an update on this.. it seems the displayName is being stripped UNLESS I also add PropTypes.displayName = 'navigation'. But, thats not a problem.. I've updated my generator to automatically add this.

[hipstersmoothie]

@brandon-pereira any chance i could get a full reproduction repo to play around with?

[zach-aries]

I'm also having this issue when wrapping components in React.memo().
Note that for me, my 'propTypes' column disappears.

[hipstersmoothie]

@zach-aries example repo would be 🔥