Function createStatefulNullable

test/browser/placeholders.test.jsx:29–55

* @param {string} name * @returns {[import('preact').ComponentClass, import('preact').RefObject<{ toggle(): void }>]}

(name)

	 * @returns {[import('preact').ComponentClass, import('preact').RefObject<{ toggle(): void }>]}
	 */
	function createStatefulNullable(name) {
		let ref = createRef();
		class Nullable extends Component {
			constructor(props) {
				super(props);
				this.state = { show: props.initialShow || true };
				ref.current = this;
			}
			toggle() {
				this.setState({ show: !this.state.show });
			}
			componentDidUpdate() {
				ops.push(`Update ${name}`);
			}
			componentDidMount() {
				ops.push(`Mount ${name}`);
			}
			componentWillUnmount() {
				ops.push(`Unmount ${name}`);
			}
			render() {
				return this.state.show ? <div>{name}</div> : null;
			}
		}

		return [Nullable, ref];
	}

	let resetAppendChild;
	let resetInsertBefore;