Function reconcileFn

packages/solid-query/src/useBaseQuery.ts:27–60

(
  store: QueryObserverResult<TData, TError>,
  result: QueryObserverResult<TData, TError>,
  reconcileOption:
    | string
    | false
    | ((oldData: TData | undefined, newData: TData) => TData),
  queryHash?: string,
)

} from '@tanstack/query-core'

function reconcileFn<TData, TError>(
  store: QueryObserverResult<TData, TError>,
  result: QueryObserverResult<TData, TError>,
  reconcileOption:
    | string
    | false
    | ((oldData: TData | undefined, newData: TData) => TData),
  queryHash?: string,
): QueryObserverResult<TData, TError> {
  if (reconcileOption === false) return result
  if (typeof reconcileOption === 'function') {
    const newData = reconcileOption(store.data, result.data as TData)
    return { ...result, data: newData } as typeof result
  }
  let data = result.data
  if (store.data === undefined) {
    try {
      data = structuredClone(data)
    } catch (error) {
      if (process.env.NODE_ENV !== 'production') {
        if (error instanceof Error) {
          console.warn(
            `Unable to correctly reconcile data for query key: ${queryHash}. ` +
              `Possibly because the query data contains data structures that aren't supported ` +
              `by the 'structuredClone' algorithm. Consider using a callback function instead ` +
              `to manage the reconciliation manually.\n\n Error Received: ${error.name} - ${error.message}`,
          )
        }
      }
    }
  }
  const newData = reconcile(data, { key: reconcileOption })(store.data)
  return { ...result, data: newData } as typeof result
}

/**
 * Solid's `onHydrated` functionality will silently "fail" (hydrate with an empty object)