Function fromIterator

packages/effect/src/internal/core.ts:1405–1416

(
  iterator: LazyArg<Iterator<Eff, AEff, never>>
)

/* @internal */
export const fromIterator = <Eff extends YieldWrap<Effect.Effect<any, any, any>>, AEff>(
  iterator: LazyArg<Iterator<Eff, AEff, never>>
): Effect.Effect<
  AEff,
  [Eff] extends [never] ? never : [Eff] extends [YieldWrap<Effect.Effect<infer _A, infer E, infer _R>>] ? E : never,
  [Eff] extends [never] ? never : [Eff] extends [YieldWrap<Effect.Effect<infer _A, infer _E, infer R>>] ? R : never
> =>
  suspend(() => {
    const effect = new EffectPrimitive(OpCodes.OP_ITERATOR) as any
    effect.effect_instruction_i0 = iterator()
    return effect
  })

/* @internal */
export const gen: typeof Effect.gen = function() {