Function containsTree

packages/router/src/url_tree.ts:133–143

(
  container: UrlTree,
  containee: UrlTree,
  options: IsActiveMatchOptions,
)

}

export function containsTree(
  container: UrlTree,
  containee: UrlTree,
  options: IsActiveMatchOptions,
): boolean {
  return (
    pathCompareMap[options.paths](container.root, containee.root, options.matrixParams) &&
    paramCompareMap[options.queryParams](container.queryParams, containee.queryParams) &&
    !(options.fragment === 'exact' && container.fragment !== containee.fragment)
  );
}

function equalParams(container: Params, containee: Params): boolean {
  // TODO: This does not handle array params correctly.