Function makeImpl

packages/effect/src/Context.ts:492–506

(
  cacheRoot: ContextImpl<any> | undefined,
  base: ReadonlyMap<string, any>,
  overlay: Overlay | undefined,
  depth: number
)

const FlattenAfterBaseHits = 8

const makeImpl = <Services>(
  cacheRoot: ContextImpl<any> | undefined,
  base: ReadonlyMap<string, any>,
  overlay: Overlay | undefined,
  depth: number
): ContextImpl<Services> => {
  const self: ContextImpl<Services> = Object.create(Proto)
  self.cacheRoot = cacheRoot ?? self
  self.base = base
  self.overlay = overlay
  self.depth = depth
  self._flat = undefined
  self.baseHits = 0
  return self
}

const applyOverlays = (map: Map<string, any>, overlay: Overlay | undefined): void => {
  if (!overlay) return