const location = this.props.location || context.location;
        const match = this.props.computedMatch
          ? this.props.computedMatch // <Switch> already computed the match for us
          : this.props.path
            ? matchPath(location.pathname, this.props)
            : context.match;

        const props = { ...context, location, match };
        // ...
        children = children(props);