import * as Deferred from "./Deferred.ts";
import * as Effect from "./Effect.ts";
import * as Fiber from "./Fiber.ts";
import type * as Inspectable from "./Inspectable.ts";
import type { Pipeable } from "./Pipeable.ts";
import type * as Scope from "./Scope.ts";
declare const TypeId = "~effect/FiberSet";
/**
 * A FiberSet is a collection of fibers that can be managed together.
 * When the associated Scope is closed, all fibers in the set will be interrupted.
 *
 * **Example** (Managing fibers in a set)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make<string, string>()
 *
 *   // Add fibers to the set
 *   yield* FiberSet.run(set, Effect.succeed("hello"))
 *   yield* FiberSet.run(set, Effect.succeed("world"))
 *
 *   // Wait for all fibers to complete
 *   yield* FiberSet.awaitEmpty(set)
 *   return yield* FiberSet.size(set)
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => 0
 * ```
 *
 * @stability stable
 * @category models
 * @since 2.0.0
 */
export interface FiberSet<out A = unknown, out E = unknown> extends Pipeable, Inspectable.Inspectable, Iterable<Fiber.Fiber<A, E>> {
    readonly [TypeId]: typeof TypeId;
    readonly deferred: Deferred.Deferred<void, unknown>;
    state: {
        readonly _tag: "Open";
        readonly backing: Set<Fiber.Fiber<A, E>>;
    } | {
        readonly _tag: "Closed";
    };
}
/**
 * Checks whether a value is a FiberSet.
 *
 * **Example** (Checking if a value is a FiberSet)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   return [FiberSet.isFiberSet(set), FiberSet.isFiberSet({})]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => [true, false]
 * ```
 *
 * @stability stable
 * @category guards
 * @since 2.0.0
 */
export declare const isFiberSet: (u: unknown) => u is FiberSet<unknown, unknown>;
/**
 * Creates a scoped `FiberSet` for storing fibers.
 *
 * **Details**
 *
 * When the associated Scope is closed, all fibers in the set will be
 * interrupted. You can add fibers to the set using `FiberSet.add` or
 * `FiberSet.run`, and the fibers will be automatically removed from the
 * FiberSet when they complete.
 *
 * **Example** (Creating a scoped FiberSet)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   // run some effects and add the fibers to the set
 *   yield* FiberSet.run(set, Effect.never)
 *   yield* FiberSet.run(set, Effect.never)
 *
 *   yield* Effect.yieldNow
 *   return yield* FiberSet.size(set)
 * }).pipe(
 *   Effect.scoped // The fibers will be interrupted when the scope is closed
 * )
 *
 * const actual = await Effect.runPromise(program)
 * actual // => 2
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const make: <A = unknown, E = unknown>() => Effect.Effect<FiberSet<A, E>, never, Scope.Scope>;
/**
 * Creates a scoped run function that forks effects into a new `FiberSet`.
 *
 * **Details**
 *
 * Each call returns the forked fiber and adds it to the set. Managed fibers are
 * removed when they complete and are interrupted when the set's scope closes.
 *
 * **Example** (Creating a scoped runtime)
 *
 * ```ts import.meta.vitest
 * import { Effect, Fiber, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const runFork = yield* FiberSet.makeRuntime()
 *
 *   // Fork effects using the runtime
 *   const fiber1 = runFork(Effect.succeed("hello"))
 *   const fiber2 = runFork(Effect.succeed("world"))
 *
 *   return [yield* Fiber.join(fiber1), yield* Fiber.join(fiber2)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => ["hello", "world"]
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 2.0.0
 */
export declare const makeRuntime: <R = never, A = unknown, E = unknown>() => Effect.Effect<(<XE extends E, XA extends A>(effect: Effect.Effect<XA, XE, R>, options?: (Effect.RunOptions & {
    readonly propagateInterruption?: boolean | undefined;
}) | undefined) => Fiber.Fiber<XA, XE>), never, Scope.Scope | R>;
/**
 * Creates a scoped run function that forks effects into a new `FiberSet` and
 * returns a `Promise` for each effect result.
 *
 * **When to use**
 *
 * Use when many scoped fibers should be tracked as a set while exposing each
 * result through Promise-based APIs.
 *
 * **Details**
 *
 * Managed fibers are removed when they complete and are interrupted when the
 * set's scope closes. Each Promise resolves with the effect's success value or
 * rejects with the squashed failure cause.
 *
 * **Example** (Creating a promise runtime)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const runPromise = yield* FiberSet.makeRuntimePromise()
 *
 *   // Run effects as promises
 *   const promise1 = runPromise(Effect.succeed("hello"))
 *   const promise2 = runPromise(Effect.succeed("world"))
 *
 *   return [yield* Effect.promise(() => promise1), yield* Effect.promise(() => promise2)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => ["hello", "world"]
 * ```
 *
 * @stability stable
 * @category constructors
 * @since 3.13.0
 */
export declare const makeRuntimePromise: <R = never, A = unknown, E = unknown>() => Effect.Effect<(<XE extends E, XA extends A>(effect: Effect.Effect<XA, XE, R>, options?: (Effect.RunOptions & {
    readonly propagateInterruption?: boolean | undefined;
}) | undefined) => Promise<XA>), never, R | Scope.Scope>;
/**
 * Adds an existing fiber to the `FiberSet` using a synchronous, unsafe
 * mutation.
 *
 * **When to use**
 *
 * Use when an already forked fiber must be registered immediately and
 * synchronous interruption on a closed set is acceptable.
 *
 * **Details**
 *
 * When the fiber completes, it is removed from the set. If the set is already
 * closed, the supplied fiber is interrupted immediately. Non-interruption
 * failures are recorded for `FiberSet.join`.
 *
 * **Example** (Adding a fiber unsafely)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *   const fiber = yield* Effect.forkChild(Effect.never)
 *
 *   // Unsafe add - doesn't return an Effect
 *   FiberSet.addUnsafe(set, fiber)
 *
 *   // The fiber is now managed by the set
 *   return yield* FiberSet.size(set)
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => 1
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 4.0.0
 */
export declare const addUnsafe: {
    /**
     * Adds an existing fiber to the `FiberSet` using a synchronous, unsafe
     * mutation.
     *
     * **When to use**
     *
     * Use when an already forked fiber must be registered immediately and
     * synchronous interruption on a closed set is acceptable.
     *
     * **Details**
     *
     * When the fiber completes, it is removed from the set. If the set is already
     * closed, the supplied fiber is interrupted immediately. Non-interruption
     * failures are recorded for `FiberSet.join`.
     *
     * **Example** (Adding a fiber unsafely)
     *
     * ```ts import.meta.vitest
     * import { Effect, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *   const fiber = yield* Effect.forkChild(Effect.never)
     *
     *   // Unsafe add - doesn't return an Effect
     *   FiberSet.addUnsafe(set, fiber)
     *
     *   // The fiber is now managed by the set
     *   return yield* FiberSet.size(set)
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => 1
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A, E, XE extends E, XA extends A>(fiber: Fiber.Fiber<XA, XE>, options?: {
        readonly propagateInterruption?: boolean | undefined;
    } | undefined): (self: FiberSet<A, E>) => void;
    /**
     * Adds an existing fiber to the `FiberSet` using a synchronous, unsafe
     * mutation.
     *
     * **When to use**
     *
     * Use when an already forked fiber must be registered immediately and
     * synchronous interruption on a closed set is acceptable.
     *
     * **Details**
     *
     * When the fiber completes, it is removed from the set. If the set is already
     * closed, the supplied fiber is interrupted immediately. Non-interruption
     * failures are recorded for `FiberSet.join`.
     *
     * **Example** (Adding a fiber unsafely)
     *
     * ```ts import.meta.vitest
     * import { Effect, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *   const fiber = yield* Effect.forkChild(Effect.never)
     *
     *   // Unsafe add - doesn't return an Effect
     *   FiberSet.addUnsafe(set, fiber)
     *
     *   // The fiber is now managed by the set
     *   return yield* FiberSet.size(set)
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => 1
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 4.0.0
     */
    <A, E, XE extends E, XA extends A>(self: FiberSet<A, E>, fiber: Fiber.Fiber<XA, XE>, options?: {
        readonly propagateInterruption?: boolean | undefined;
    } | undefined): void;
};
/**
 * Adds a fiber to the FiberSet. When the fiber completes, it will be removed.
 *
 * **Example** (Adding a fiber)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *   const fiber = yield* Effect.forkChild(Effect.never)
 *
 *   // Add the fiber to the set
 *   yield* FiberSet.add(set, fiber)
 *
 *   // The fiber is now managed by the set
 *   return yield* FiberSet.size(set)
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => 1
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const add: {
    /**
     * Adds a fiber to the FiberSet. When the fiber completes, it will be removed.
     *
     * **Example** (Adding a fiber)
     *
     * ```ts import.meta.vitest
     * import { Effect, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *   const fiber = yield* Effect.forkChild(Effect.never)
     *
     *   // Add the fiber to the set
     *   yield* FiberSet.add(set, fiber)
     *
     *   // The fiber is now managed by the set
     *   return yield* FiberSet.size(set)
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => 1
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A, E, XE extends E, XA extends A>(fiber: Fiber.Fiber<XA, XE>, options?: {
        readonly propagateInterruption?: boolean | undefined;
    } | undefined): (self: FiberSet<A, E>) => Effect.Effect<void>;
    /**
     * Adds a fiber to the FiberSet. When the fiber completes, it will be removed.
     *
     * **Example** (Adding a fiber)
     *
     * ```ts import.meta.vitest
     * import { Effect, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *   const fiber = yield* Effect.forkChild(Effect.never)
     *
     *   // Add the fiber to the set
     *   yield* FiberSet.add(set, fiber)
     *
     *   // The fiber is now managed by the set
     *   return yield* FiberSet.size(set)
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => 1
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A, E, XE extends E, XA extends A>(self: FiberSet<A, E>, fiber: Fiber.Fiber<XA, XE>, options?: {
        readonly propagateInterruption?: boolean | undefined;
    } | undefined): Effect.Effect<void>;
};
/**
 * Interrupts all fibers in the `FiberSet` and clears the set.
 *
 * **Example** (Clearing all fibers)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   // Add some fibers
 *   yield* FiberSet.run(set, Effect.never)
 *   yield* FiberSet.run(set, Effect.never)
 *
 *   const sizeBefore = yield* FiberSet.size(set)
 *
 *   // Clear all fibers
 *   yield* FiberSet.clear(set)
 *
 *   return [sizeBefore, yield* FiberSet.size(set)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => [2, 0]
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const clear: <A, E>(self: FiberSet<A, E>) => Effect.Effect<void>;
/**
 * Forks an Effect and adds the fiber to the FiberSet. The fiber is removed
 * when it completes. Set `startImmediately: false` to defer startup. By default,
 * the effect starts immediately.
 *
 * **Example** (Forking effects into a set)
 *
 * ```ts import.meta.vitest
 * import { Effect, Fiber, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   // Fork and add to set
 *   const fiber1 = yield* FiberSet.run(set, Effect.succeed("hello"))
 *   const fiber2 = yield* FiberSet.run(set, Effect.succeed("world"))
 *
 *   // Get results
 *   return [yield* Fiber.join(fiber1), yield* Fiber.join(fiber2)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => ["hello", "world"]
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const run: {
    /**
     * Forks an Effect and adds the fiber to the FiberSet. The fiber is removed
     * when it completes. Set `startImmediately: false` to defer startup. By default,
     * the effect starts immediately.
     *
     * **Example** (Forking effects into a set)
     *
     * ```ts import.meta.vitest
     * import { Effect, Fiber, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *
     *   // Fork and add to set
     *   const fiber1 = yield* FiberSet.run(set, Effect.succeed("hello"))
     *   const fiber2 = yield* FiberSet.run(set, Effect.succeed("world"))
     *
     *   // Get results
     *   return [yield* Fiber.join(fiber1), yield* Fiber.join(fiber2)]
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => ["hello", "world"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A, E>(self: FiberSet<A, E>, options?: {
        readonly propagateInterruption?: boolean | undefined;
        readonly startImmediately?: boolean | undefined;
    } | undefined): <R, XE extends E, XA extends A>(effect: Effect.Effect<XA, XE, R>) => Effect.Effect<Fiber.Fiber<XA, XE>, never, R>;
    /**
     * Forks an Effect and adds the fiber to the FiberSet. The fiber is removed
     * when it completes. Set `startImmediately: false` to defer startup. By default,
     * the effect starts immediately.
     *
     * **Example** (Forking effects into a set)
     *
     * ```ts import.meta.vitest
     * import { Effect, Fiber, FiberSet } from "effect"
     *
     * const program = Effect.gen(function*() {
     *   const set = yield* FiberSet.make()
     *
     *   // Fork and add to set
     *   const fiber1 = yield* FiberSet.run(set, Effect.succeed("hello"))
     *   const fiber2 = yield* FiberSet.run(set, Effect.succeed("world"))
     *
     *   // Get results
     *   return [yield* Fiber.join(fiber1), yield* Fiber.join(fiber2)]
     * })
     *
     * const actual = await Effect.runPromise(Effect.scoped(program))
     * actual // => ["hello", "world"]
     * ```
     *
     * @stability stable
     * @category combinators
     * @since 2.0.0
     */
    <A, E, R, XE extends E, XA extends A>(self: FiberSet<A, E>, effect: Effect.Effect<XA, XE, R>, options?: {
        readonly propagateInterruption?: boolean | undefined;
        readonly startImmediately?: boolean | undefined;
    } | undefined): Effect.Effect<Fiber.Fiber<XA, XE>, never, R>;
};
/**
 * Captures a `Runtime` and uses it to fork effects into the `FiberSet`.
 *
 * **Example** (Capturing a runtime)
 *
 * ```ts import.meta.vitest
 * import { Context, Effect, Fiber, FiberSet } from "effect"
 *
 * class Users extends Context.Service<Users, {
 *   readonly getAll: Effect.Effect<Array<unknown>>
 * }>()("Users") {}
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *   const run = yield* FiberSet.runtime(set)<Users>()
 *
 *   // run some effects and add the fibers to the set
 *   const fiber = run(Effect.andThen(Users, (_) => _.getAll))
 *   return (yield* Fiber.join(fiber)).length
 * }).pipe(
 *   Effect.scoped // The fibers will be interrupted when the scope is closed
 * )
 *
 * const actual = await Effect.runPromise(Effect.provideService(program, Users, {
 *   getAll: Effect.succeed([])
 * }))
 * actual // => 0
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const runtime: <A, E>(self: FiberSet<A, E>) => <R = never>() => Effect.Effect<<XE extends E, XA extends A>(effect: Effect.Effect<XA, XE, R>, options?: (Effect.RunOptions & {
    readonly propagateInterruption?: boolean | undefined;
}) | undefined) => Fiber.Fiber<XA, XE>, never, R>;
/**
 * Captures a `Runtime` and returns a Promise-based runner that forks effects
 * into the `FiberSet`.
 *
 * **When to use**
 *
 * Use when you need to bridge effects to `Promise` values while still tracking
 * their fibers in a `FiberSet`.
 *
 * **Details**
 *
 * The returned run function returns a `Promise` for each effect result.
 *
 * **Example** (Running effects as promises)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *   const runPromise = yield* FiberSet.runtimePromise(set)()
 *
 *   // Run effects as promises
 *   const promise1 = runPromise(Effect.succeed("hello"))
 *   const promise2 = runPromise(Effect.succeed("world"))
 *
 *   return [yield* Effect.promise(() => promise1), yield* Effect.promise(() => promise2)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => ["hello", "world"]
 * ```
 *
 * @see {@link runtime} for a runner that returns the forked `Fiber`
 *
 * @stability stable
 * @category combinators
 * @since 3.13.0
 */
export declare const runtimePromise: <A, E>(self: FiberSet<A, E>) => <R = never>() => Effect.Effect<<XE extends E, XA extends A>(effect: Effect.Effect<XA, XE, R>, options?: (Effect.RunOptions & {
    readonly propagateInterruption?: boolean | undefined;
}) | undefined) => Promise<XA>, never, R>;
/**
 * Gets the number of fibers currently in the FiberSet.
 *
 * **Example** (Checking the set size)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   const sizeBefore = yield* FiberSet.size(set)
 *
 *   // Add some fibers
 *   yield* FiberSet.run(set, Effect.never)
 *   yield* FiberSet.run(set, Effect.never)
 *
 *   return [sizeBefore, yield* FiberSet.size(set)]
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => [0, 2]
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const size: <A, E>(self: FiberSet<A, E>) => Effect.Effect<number>;
/**
 * Joins all fibers in the FiberSet. If any fiber in the set terminates with a failure,
 * the returned Effect will terminate with the first failure that occurred.
 *
 * **Example** (Joining failing fibers)
 *
 * ```ts import.meta.vitest
 * import { Effect, Exit, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *   yield* FiberSet.add(set, Effect.runFork(Effect.fail("error")))
 *
 *   // parent fiber will fail with "error"
 *   yield* FiberSet.join(set)
 * })
 *
 * const actual = await Effect.runPromise(Effect.exit(Effect.scoped(program)))
 * actual // => Exit.fail("error")
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 2.0.0
 */
export declare const join: <A, E>(self: FiberSet<A, E>) => Effect.Effect<void, E>;
/**
 * Waits until the fiber set is empty.
 *
 * **Example** (Waiting for an empty set)
 *
 * ```ts import.meta.vitest
 * import { Effect, FiberSet } from "effect"
 *
 * const program = Effect.gen(function*() {
 *   const set = yield* FiberSet.make()
 *
 *   yield* FiberSet.run(set, Effect.yieldNow)
 *   yield* FiberSet.run(set, Effect.yieldNow)
 *
 *   // Wait for all fibers to complete
 *   yield* FiberSet.awaitEmpty(set)
 *
 *   return yield* FiberSet.size(set)
 * })
 *
 * const actual = await Effect.runPromise(Effect.scoped(program))
 * actual // => 0
 * ```
 *
 * @stability stable
 * @category combinators
 * @since 3.13.0
 */
export declare const awaitEmpty: <A, E>(self: FiberSet<A, E>) => Effect.Effect<void>;
export {};
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