Function getQueryFamily

packages/vue/src/query.ts:120–131

(
  rt: AtomClientRuntime,
  q: QueryFamilyDescriptor<I, A, E>
)

// One atom family per request shape, keyed by the stable query key + projection hash (not the
// handler object — `clientFor` returns a fresh proxy per call, so the object isn't shareable).
// Module-level + key-indexed => the family is process-global, so the same request+input read
// the same atom across components/pages => cross-page caching via the global registry.
const queryFamilyByKey = new Map<string, any>()
const getQueryFamily = <I, A, E>(
  rt: AtomClientRuntime,
  q: QueryFamilyDescriptor<I, A, E>
): QueryAtomFamily<I, A, E> => {
  const key = queryFamilyCacheKey(q)
  let f = queryFamilyByKey.get(key)
  if (!f) {
    f = buildQueryFamily(rt, q)
    queryFamilyByKey.set(key, f)
  }
  return f