swc/tests/fixture/issue-2021/es2020/output/index.js

function _defineProperty(obj, key, value) {
    if (key in obj) {
        Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
        });
    } else {
        obj[key] = value;
    }
    return obj;
}
class Item extends Component {
    constructor(props){
        super(props);
        _defineProperty(this, "input", this.props.item);
    }
}