Function Service

packages/effect/src/LayerMap.ts:370–436

()

 * @since 3.14.0
 */
export const Service = <Self>() =>
<
  const Id extends string,
  const Options extends
    | NoExcessProperties<{
      readonly lookup: (key: any) => Layer.Layer<any, any, any>
      readonly dependencies?: ReadonlyArray<Layer.Layer<any, any, any>> | undefined
      readonly idleTimeToLive?: IdleTimeToLiveInput<any> | undefined
      readonly preloadKeys?:
        | Iterable<Options extends { readonly lookup: (key: infer K) => any } ? K : never>
        | undefined
    }, Options>
    | NoExcessProperties<{
      readonly layers: Record<string, Layer.Layer<any, any, any>>
      readonly dependencies?: ReadonlyArray<Layer.Layer<any, any, any>> | undefined
      readonly idleTimeToLive?: IdleTimeToLiveInput<any> | undefined
      readonly preload?: boolean | undefined
    }, Options>
>(
  id: Id,
  options: Options
): TagClass<
  Self,
  Id,
  Options extends { readonly lookup: (key: infer K) => any } ? K
    : Options extends { readonly layers: infer Layers } ? keyof Layers
    : never,
  Service.Success<Options>,
  Options extends { readonly preload: true } ? never : Service.Error<Options>,
  Service.Services<Options>,
  Options extends { readonly preload: true } ? Service.Error<Options>
    : Options extends { readonly preloadKeys: Iterable<any> } ? Service.Error<Options>
    : never,
  Options extends { readonly dependencies: ReadonlyArray<Layer.Layer<any, any, any>> } ? Options["dependencies"][number]
    : never
> => {
  const Err = globalThis.Error as any
  const limit = getStackTraceLimit()
  setStackTraceLimit(2)
  const creationError = new Err()
  setStackTraceLimit(limit)

  function TagClass() {}
  const TagClass_ = TagClass as any as Mutable<TagClass<Self, Id, string, any, any, any, any, any>>
  Object.setPrototypeOf(TagClass, Object.getPrototypeOf(Context.Service<Self, any>(id)))
  TagClass.key = id
  Object.defineProperty(TagClass, "stack", {
    get() {
      return creationError.stack
    }
  })

  TagClass_.layerNoDeps = Layer.effect(TagClass_)(
    "lookup" in options
      ? make(options.lookup, options)
      : fromRecord(options.layers as any, options) as any
  )
  TagClass_.layer = options.dependencies && options.dependencies.length > 0 ?