Function forwardRef

compat/src/forwardRef.js:26–44

(fn)

 * @returns {import('./internal').FunctionComponent}
 */
export function forwardRef(fn) {
	function Forwarded(props) {
		let clone = assign({}, props);
		delete clone.ref;
		return fn(clone, props.ref || null);
	}

	// mobx-react checks for this being present
	Forwarded.$$typeof = REACT_FORWARD_SYMBOL;
	// mobx-react heavily relies on implementation details.
	// It expects an object here with a `render` property,
	// and prototype.render will fail. Without this
	// mobx-react throws.
	Forwarded.render = fn;

	Forwarded.prototype.isReactComponent = Forwarded._forwarded = true;
	Forwarded.displayName = 'ForwardRef(' + (fn.displayName || fn.name) + ')';
	return Forwarded;
}