Function serializeSegment

packages/router/src/url_tree.ts:471–505

(segment: UrlSegmentGroup, root: boolean)

}

function serializeSegment(segment: UrlSegmentGroup, root: boolean): string {
  if (!segment.hasChildren()) {
    return serializePaths(segment);
  }

  if (root) {
    const primary = segment.children[PRIMARY_OUTLET]
      ? serializeSegment(segment.children[PRIMARY_OUTLET], false)
      : '';
    const children: string[] = [];

    Object.entries(segment.children).forEach(([k, v]) => {
      if (k !== PRIMARY_OUTLET) {
        children.push(`${k}:${serializeSegment(v, false)}`);
      }
    });

    return children.length > 0 ? `${primary}(${children.join('//')})` : primary;
  } else {
    const children = mapChildrenIntoArray(segment, (v: UrlSegmentGroup, k: string) => {
      if (k === PRIMARY_OUTLET) {
        return [serializeSegment(segment.children[PRIMARY_OUTLET], false)];
      }

      return [`${k}:${serializeSegment(v, false)}`];
    });

    // use no parenthesis if the only child is a primary outlet route
    if (Object.keys(segment.children).length === 1 && segment.children[PRIMARY_OUTLET] != null) {
      return `${serializePaths(segment)}/${children[0]}`;
    }

    return `${serializePaths(segment)}/(${children.join('//')})`;
  }
}

/**
 * Encodes a URI string with the default encoding. This function will only ever be called from