Error in addon-docs prop table when using HOC

Describe the bug When using HOCs, the PropTypes aren’t correctly displayed in the addon-docs prop table.
Instead, the following error is displayed:

Cannot read property ‘classes’ of undefined

To Reproduce Steps to reproduce the behavior:

1. Create an HOC.
2. Create a story for this component

Expected behavior The prop table should be filled with the component’s proptypes.

Screenshots

Code snippets

class Alert extends React.Component { ... }
Alert.propTypes = {
  variant: PropTypes.string,
  dismissible: PropTypes.bool,
  icon: PropTypes.elementType,
  classes: PropTypes.object.isRequired
};
Alert.defaultProps = {
  variant: 'primary',
  dismissible: false,
};

export default withStyles(theme => ({
  alert: props => ({
    backgroundColor: theme.palette[props.variant].main
  }),
  message: {
    display: 'flex',
    alignItems: 'center',
  },
  icon: {
    marginRight: theme.spacing(2),
  }
}))(Alert);

System:

System:
    OS: Windows 10 10.0.18362
    CPU: (8) x64 Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz
  Binaries:
    Node: 10.16.0 - C:\Program Files\nodejs\node.EXE      
    npm: 6.10.1 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: 44.18362.449.0

[gitnarqt]

Any update on this issue? It just doesn’t make sense to add unnecessary exports to the code just to document it properly 🤷🏻‍♂️

[shilman]

@gforrest-bw absolutely. hopefully we can address this in january as a high-priority bug.