Function preCheck

repos/effect/packages/effect/src/RequestResolver.ts:1110–1138

(entry)

 * **Details**
 *
 * Running the returned effect creates the cache and returns a wrapped resolver.
 * The cache stores completed success or failure results by request equality up
 * to `capacity`. The `strategy` option controls eviction order and defaults to
 * `"lru"`; `"fifo"` keeps insertion order.
 *
 * **Gotchas**
 *
 * Entries do not expire by time, and completed failures are cached the same as
 * successes. Request equality controls cache hits.
 *
 * @see {@link asCache} for exposing the resolver as a `Cache` with time-to-live and service lookup controls
 * @see {@link persisted} for backing persistable requests with the configured persistence store
 *
 * @category caching
 * @since 4.0.0
 */
export const withCache: {
  <A extends Request.Any>(options: {
    readonly capacity: number
    readonly strategy?: "lru" | "fifo" | undefined
  }): (self: RequestResolver<A>) => Effect.Effect<RequestResolver<A>>
  <A extends Request.Any>(self: RequestResolver<A>, options: {
    readonly capacity: number
    readonly strategy?: "lru" | "fifo" | undefined
  }): Effect.Effect<RequestResolver<A>>
} = dual(2, <A extends Request.Any>(self: RequestResolver<A>, options: {
  readonly capacity: number
  readonly strategy?: "lru" | "fifo" | undefined
}): Effect.Effect<RequestResolver<A>> =>
  Effect.sync(() => {
    const strategy = options.strategy ?? "lru"
    const cache = MutableHashMap.empty<A, {