Accessing state from outside component’s class

Hey everyone! Got a quick question right here. Hope this is the right place to ask. I’ve been trying to access a state from outside the component class, inside a withSelect call, but I haven’t been successful :disappointed: Any ideas how to achieve this? Is it possible?

const { withSelect } = wp.data;

class SearchControl extends Component {

	constructor() {
		super( ...arguments );
		this.state = { searchTerm: null };
	}

	render() { ... }
}

export default withSelect( ( select, state ) => {
	const { getEntityRecords } = select( 'core' );
	const { searchTerm } = state;
	return {
		posts: getEntityRecords( 'postType', 'post', { search: searchTerm } ),
	};
} )( SearchControl );