prop-types and es7.objectRestSpread

I’m currently getting a lint warning saying that a prop is not defined with the following example:

import React from 'react';
import SharedPropTypes from './SharedPropTypes';

export default class A extends React.Component {
  render() {
    return (
      <span
        a={this.props.a}
        b={this.props.b}
        c={this.props.c}>
        {this.props.children}
      </span>
    );
  }
}

A.propTypes = {
  a: React.PropTypes.string,
  ...SharedPropTypes // eslint-disable-line object-shorthand
};

The propTypes are getting assigned utilizing the experimental Stage 1 feature from Babel es7.objectRestSpread.

• http://babeljs.io/docs/usage/experimental/
• https://github.com/sebmarkbage/ecmascript-rest-spread

I already have to disable one line as it is not yet supported in eslint as per eslint/eslint#2514.

I don’t know if this is a limiting issue due to eslint not supporting this ES7 feature yet or not.

[Coobaha]

@mtscout6 this should work

A.propTypes = Object.assign({...SharedPropTypes}, {
  a: React.PropTypes.string,
});

[yannickcr]

I fixed a crash related to the spread operator (#389). Components propTypes validation is now ignored if propTypes are using the spread operator (since in this case we cannot determine what propTypes are defined or not).