Erster Docker-Stand

_node_modules/effect/src/FiberHandle.ts

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+/**
+ * @since 2.0.0
+ */
+import type { NoSuchElementException } from "./Cause.js"
+import * as Cause from "./Cause.js"
+import * as Deferred from "./Deferred.js"
+import * as Effect from "./Effect.js"
+import * as Exit from "./Exit.js"
+import * as Fiber from "./Fiber.js"
+import * as FiberId from "./FiberId.js"
+import { constFalse, dual } from "./Function.js"
+import * as HashSet from "./HashSet.js"
+import * as Inspectable from "./Inspectable.js"
+import * as Option from "./Option.js"
+import { type Pipeable, pipeArguments } from "./Pipeable.js"
+import * as Predicate from "./Predicate.js"
+import * as Runtime from "./Runtime.js"
+import type * as Scope from "./Scope.js"
+
+/**
+ * @since 2.0.0
+ * @categories type ids
+ */
+export const TypeId: unique symbol = Symbol.for("effect/FiberHandle")
+
+/**
+ * @since 2.0.0
+ * @categories type ids
+ */
+export type TypeId = typeof TypeId
+
+/**
+ * @since 2.0.0
+ * @categories models
+ */
+export interface FiberHandle<out A = unknown, out E = unknown> extends Pipeable, Inspectable.Inspectable {
+  readonly [TypeId]: TypeId
+  readonly deferred: Deferred.Deferred<void, unknown>
+  /** @internal */
+  state: {
+    readonly _tag: "Open"
+    fiber: Fiber.RuntimeFiber<A, E> | undefined
+  } | {
+    readonly _tag: "Closed"
+  }
+}
+
+/**
+ * @since 2.0.0
+ * @categories refinements
+ */
+export const isFiberHandle = (u: unknown): u is FiberHandle => Predicate.hasProperty(u, TypeId)
+
+const Proto = {
+  [TypeId]: TypeId,
+  toString(this: FiberHandle) {
+    return Inspectable.format(this.toJSON())
+  },
+  toJSON(this: FiberHandle) {
+    return {
+      _id: "FiberHandle",
+      state: this.state
+    }
+  },
+  [Inspectable.NodeInspectSymbol](this: FiberHandle) {
+    return this.toJSON()
+  },
+  pipe() {
+    return pipeArguments(this, arguments)
+  }
+}
+
+const unsafeMake = <A = unknown, E = unknown>(
+  deferred: Deferred.Deferred<void, E>
+): FiberHandle<A, E> => {
+  const self = Object.create(Proto)
+  self.state = { _tag: "Open", fiber: undefined }
+  self.deferred = deferred
+  return self
+}
+
+/**
+ * A FiberHandle can be used to store a single fiber.
+ * When the associated Scope is closed, the contained fiber will be interrupted.
+ *
+ * You can add a fiber to the handle using `FiberHandle.run`, and the fiber will
+ * be automatically removed from the FiberHandle when it completes.
+ *
+ * @example
+ * ```ts
+ * import { Effect, FiberHandle } from "effect"
+ *
+ * Effect.gen(function*() {
+ *   const handle = yield* FiberHandle.make()
+ *
+ *   // run some effects
+ *   yield* FiberHandle.run(handle, Effect.never)
+ *   // this will interrupt the previous fiber
+ *   yield* FiberHandle.run(handle, Effect.never)
+ *
+ *   yield* Effect.sleep(1000)
+ * }).pipe(
+ *   Effect.scoped // The fiber will be interrupted when the scope is closed
+ * )
+ * ```
+ *
+ * @since 2.0.0
+ * @categories constructors
+ */
+export const make = <A = unknown, E = unknown>(): Effect.Effect<FiberHandle<A, E>, never, Scope.Scope> =>
+  Effect.acquireRelease(
+    Effect.map(Deferred.make<void, E>(), (deferred) => unsafeMake<A, E>(deferred)),
+    (handle) =>
+      Effect.withFiberRuntime((parent) => {
+        const state = handle.state
+        if (state._tag === "Closed") return Effect.void
+        handle.state = { _tag: "Closed" }
+        return state.fiber ?
+          Effect.intoDeferred(
+            Effect.asVoid(Fiber.interruptAs(state.fiber, FiberId.combine(parent.id(), internalFiberId))),
+            handle.deferred
+          ) :
+          Deferred.done(handle.deferred, Exit.void)
+      })
+  )
+
+/**
+ * Create an Effect run function that is backed by a FiberHandle.
+ *
+ * @since 2.0.0
+ * @categories constructors
+ */
+export const makeRuntime = <R, E = unknown, A = unknown>(): Effect.Effect<
+  <XE extends E, XA extends A>(
+    effect: Effect.Effect<XA, XE, R>,
+    options?:
+      | Runtime.RunForkOptions & {
+        readonly onlyIfMissing?: boolean | undefined
+      }
+      | undefined
+  ) => Fiber.RuntimeFiber<XA, XE>,
+  never,
+  Scope.Scope | R
+> =>
+  Effect.flatMap(
+    make<A, E>(),
+    (self) => runtime(self)<R>()
+  )
+
+/**
+ * Create an Effect run function that is backed by a FiberHandle.
+ *
+ * @since 3.13.0
+ * @categories constructors
+ */
+export const makeRuntimePromise = <R = never, A = unknown, E = unknown>(): Effect.Effect<
+  <XE extends E, XA extends A>(
+    effect: Effect.Effect<XA, XE, R>,
+    options?: Runtime.RunForkOptions | undefined
+  ) => Promise<XA>,
+  never,
+  Scope.Scope | R
+> =>
+  Effect.flatMap(
+    make<A, E>(),
+    (self) => runtimePromise(self)<R>()
+  )
+
+const internalFiberIdId = -1
+const internalFiberId = FiberId.make(internalFiberIdId, 0)
+const isInternalInterruption = Cause.reduceWithContext(undefined, {
+  emptyCase: constFalse,
+  failCase: constFalse,
+  dieCase: constFalse,
+  interruptCase: (_, fiberId) => HashSet.has(FiberId.ids(fiberId), internalFiberIdId),
+  sequentialCase: (_, left, right) => left || right,
+  parallelCase: (_, left, right) => left || right
+})
+
+/**
+ * Set the fiber in a FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+ * If a fiber is already running, it will be interrupted unless `options.onlyIfMissing` is set.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const unsafeSet: {
+  /**
+   * Set the fiber in a FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+   * If a fiber is already running, it will be interrupted unless `options.onlyIfMissing` is set.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E, XE extends E, XA extends A>(
+    fiber: Fiber.RuntimeFiber<XA, XE>,
+    options?: {
+      readonly interruptAs?: FiberId.FiberId | undefined
+      readonly onlyIfMissing?: boolean | undefined
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): (self: FiberHandle<A, E>) => void
+  /**
+   * Set the fiber in a FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+   * If a fiber is already running, it will be interrupted unless `options.onlyIfMissing` is set.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E, XE extends E, XA extends A>(
+    self: FiberHandle<A, E>,
+    fiber: Fiber.RuntimeFiber<XA, XE>,
+    options?: {
+      readonly interruptAs?: FiberId.FiberId | undefined
+      readonly onlyIfMissing?: boolean | undefined
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): void
+} = dual((args) => isFiberHandle(args[0]), <A, E, XE extends E, XA extends A>(
+  self: FiberHandle<A, E>,
+  fiber: Fiber.RuntimeFiber<XA, XE>,
+  options?: {
+    readonly interruptAs?: FiberId.FiberId | undefined
+    readonly onlyIfMissing?: boolean | undefined
+    readonly propagateInterruption?: boolean | undefined
+  }
+): void => {
+  if (self.state._tag === "Closed") {
+    fiber.unsafeInterruptAsFork(FiberId.combine(options?.interruptAs ?? FiberId.none, internalFiberId))
+    return
+  } else if (self.state.fiber !== undefined) {
+    if (options?.onlyIfMissing === true) {
+      fiber.unsafeInterruptAsFork(FiberId.combine(options?.interruptAs ?? FiberId.none, internalFiberId))
+      return
+    } else if (self.state.fiber === fiber) {
+      return
+    }
+    self.state.fiber.unsafeInterruptAsFork(FiberId.combine(options?.interruptAs ?? FiberId.none, internalFiberId))
+    self.state.fiber = undefined
+  }
+
+  self.state.fiber = fiber
+  fiber.addObserver((exit) => {
+    if (self.state._tag === "Open" && fiber === self.state.fiber) {
+      self.state.fiber = undefined
+    }
+    if (
+      Exit.isFailure(exit) &&
+      (
+        options?.propagateInterruption === true ?
+          !isInternalInterruption(exit.cause) :
+          !Cause.isInterruptedOnly(exit.cause)
+      )
+    ) {
+      Deferred.unsafeDone(self.deferred, exit as any)
+    }
+  })
+})
+
+/**
+ * Set the fiber in the FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+ * If a fiber already exists in the FiberHandle, it will be interrupted unless `options.onlyIfMissing` is set.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const set: {
+  /**
+   * Set the fiber in the FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+   * If a fiber already exists in the FiberHandle, it will be interrupted unless `options.onlyIfMissing` is set.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E, XE extends E, XA extends A>(
+    fiber: Fiber.RuntimeFiber<XA, XE>,
+    options?: {
+      readonly onlyIfMissing?: boolean
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): (self: FiberHandle<A, E>) => Effect.Effect<void>
+  /**
+   * Set the fiber in the FiberHandle. When the fiber completes, it will be removed from the FiberHandle.
+   * If a fiber already exists in the FiberHandle, it will be interrupted unless `options.onlyIfMissing` is set.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E, XE extends E, XA extends A>(
+    self: FiberHandle<A, E>,
+    fiber: Fiber.RuntimeFiber<XA, XE>,
+    options?: {
+      readonly onlyIfMissing?: boolean
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): Effect.Effect<void>
+} = dual((args) => isFiberHandle(args[0]), <A, E, XE extends E, XA extends A>(
+  self: FiberHandle<A, E>,
+  fiber: Fiber.RuntimeFiber<XA, XE>,
+  options?: {
+    readonly onlyIfMissing?: boolean
+    readonly propagateInterruption?: boolean | undefined
+  }
+): Effect.Effect<void> =>
+  Effect.fiberIdWith(
+    (fiberId) =>
+      Effect.sync(() =>
+        unsafeSet(self, fiber, {
+          interruptAs: fiberId,
+          onlyIfMissing: options?.onlyIfMissing,
+          propagateInterruption: options?.propagateInterruption
+        })
+      )
+  ))
+
+/**
+ * Retrieve the fiber from the FiberHandle.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const unsafeGet = <A, E>(self: FiberHandle<A, E>): Option.Option<Fiber.RuntimeFiber<A, E>> =>
+  self.state._tag === "Closed" ? Option.none() : Option.fromNullable(self.state.fiber)
+
+/**
+ * Retrieve the fiber from the FiberHandle.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const get = <A, E>(self: FiberHandle<A, E>): Effect.Effect<Fiber.RuntimeFiber<A, E>, NoSuchElementException> =>
+  Effect.suspend(() => unsafeGet(self))
+
+/**
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const clear = <A, E>(self: FiberHandle<A, E>): Effect.Effect<void> =>
+  Effect.uninterruptibleMask((restore) =>
+    Effect.withFiberRuntime((fiber) => {
+      if (self.state._tag === "Closed" || self.state.fiber === undefined) {
+        return Effect.void
+      }
+      return Effect.zipRight(
+        restore(Fiber.interruptAs(self.state.fiber, FiberId.combine(fiber.id(), internalFiberId))),
+        Effect.sync(() => {
+          if (self.state._tag === "Open") {
+            self.state.fiber = undefined
+          }
+        })
+      )
+    })
+  )
+
+const constInterruptedFiber = (function() {
+  let fiber: Fiber.RuntimeFiber<never, never> | undefined = undefined
+  return () => {
+    if (fiber === undefined) {
+      fiber = Effect.runFork(Effect.interrupt)
+    }
+    return fiber
+  }
+})()
+
+/**
+ * Run an Effect and add the forked fiber to the FiberHandle.
+ * When the fiber completes, it will be removed from the FiberHandle.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const run: {
+  /**
+   * Run an Effect and add the forked fiber to the FiberHandle.
+   * When the fiber completes, it will be removed from the FiberHandle.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E>(
+    self: FiberHandle<A, E>,
+    options?: {
+      readonly onlyIfMissing?: boolean
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): <R, XE extends E, XA extends A>(
+    effect: Effect.Effect<XA, XE, R>
+  ) => Effect.Effect<Fiber.RuntimeFiber<XA, XE>, never, R>
+  /**
+   * Run an Effect and add the forked fiber to the FiberHandle.
+   * When the fiber completes, it will be removed from the FiberHandle.
+   *
+   * @since 2.0.0
+   * @categories combinators
+   */
+  <A, E, R, XE extends E, XA extends A>(
+    self: FiberHandle<A, E>,
+    effect: Effect.Effect<XA, XE, R>,
+    options?: {
+      readonly onlyIfMissing?: boolean
+      readonly propagateInterruption?: boolean | undefined
+    }
+  ): Effect.Effect<Fiber.RuntimeFiber<XA, XE>, never, R>
+} = function() {
+  const self = arguments[0] as FiberHandle
+  if (Effect.isEffect(arguments[1])) {
+    return runImpl(self, arguments[1], arguments[2]) as any
+  }
+  const options = arguments[1]
+  return (effect: Effect.Effect<unknown, unknown, any>) => runImpl(self, effect, options)
+}
+
+const runImpl = <A, E, R, XE extends E, XA extends A>(
+  self: FiberHandle<A, E>,
+  effect: Effect.Effect<XA, XE, R>,
+  options?: {
+    readonly onlyIfMissing?: boolean
+    readonly propagateInterruption?: boolean | undefined
+  }
+): Effect.Effect<Fiber.RuntimeFiber<XA, XE>, never, R> =>
+  Effect.fiberIdWith((fiberId) => {
+    if (self.state._tag === "Closed") {
+      return Effect.interrupt
+    } else if (self.state.fiber !== undefined && options?.onlyIfMissing === true) {
+      return Effect.sync(constInterruptedFiber)
+    }
+    return Effect.tap(
+      Effect.forkDaemon(effect),
+      (fiber) => unsafeSet(self, fiber, { ...options, interruptAs: fiberId })
+    )
+  })
+
+/**
+ * Capture a Runtime and use it to fork Effect's, adding the forked fibers to the FiberHandle.
+ *
+ * @example
+ * ```ts
+ * import { Context, Effect, FiberHandle } from "effect"
+ *
+ * interface Users {
+ *   readonly _: unique symbol
+ * }
+ * const Users = Context.GenericTag<Users, {
+ *    getAll: Effect.Effect<Array<unknown>>
+ * }>("Users")
+ *
+ * Effect.gen(function*() {
+ *   const handle = yield* FiberHandle.make()
+ *   const run = yield* FiberHandle.runtime(handle)<Users>()
+ *
+ *   // run an effect and set the fiber in the handle
+ *   run(Effect.andThen(Users, _ => _.getAll))
+ *
+ *   // this will interrupt the previous fiber
+ *   run(Effect.andThen(Users, _ => _.getAll))
+ * }).pipe(
+ *   Effect.scoped // The fiber will be interrupted when the scope is closed
+ * )
+ * ```
+ *
+ * @since 2.0.0
+ * @categories combinators
+ */
+export const runtime: <A, E>(
+  self: FiberHandle<A, E>
+) => <R = never>() => Effect.Effect<
+  <XE extends E, XA extends A>(
+    effect: Effect.Effect<XA, XE, R>,
+    options?:
+      | Runtime.RunForkOptions & {
+        readonly onlyIfMissing?: boolean | undefined
+        readonly propagateInterruption?: boolean | undefined
+      }
+      | undefined
+  ) => Fiber.RuntimeFiber<XA, XE>,
+  never,
+  R
+> = <A, E>(self: FiberHandle<A, E>) => <R>() =>
+  Effect.map(
+    Effect.runtime<R>(),
+    (runtime) => {
+      const runFork = Runtime.runFork(runtime)
+      return <XE extends E, XA extends A>(
+        effect: Effect.Effect<XA, XE, R>,
+        options?:
+          | Runtime.RunForkOptions & {
+            readonly onlyIfMissing?: boolean | undefined
+            readonly propagateInterruption?: boolean | undefined
+          }
+          | undefined
+      ) => {
+        if (self.state._tag === "Closed") {
+          return constInterruptedFiber()
+        } else if (self.state.fiber !== undefined && options?.onlyIfMissing === true) {
+          return constInterruptedFiber()
+        }
+        const fiber = runFork(effect, options)
+        unsafeSet(self, fiber, options)
+        return fiber
+      }
+    }
+  )
+
+/**
+ * Capture a Runtime and use it to fork Effect's, adding the forked fibers to the FiberHandle.
+ *
+ * The returned run function will return Promise's that will resolve when the
+ * fiber completes.
+ *
+ * @since 3.13.0
+ * @categories combinators
+ */
+export const runtimePromise = <A, E>(self: FiberHandle<A, E>): <R = never>() => Effect.Effect<
+  <XE extends E, XA extends A>(
+    effect: Effect.Effect<XA, XE, R>,
+    options?:
+      | Runtime.RunForkOptions & { readonly propagateInterruption?: boolean | undefined }
+      | undefined
+  ) => Promise<XA>,
+  never,
+  R
+> =>
+<R>() =>
+  Effect.map(
+    runtime(self)<R>(),
+    (runFork) =>
+    <XE extends E, XA extends A>(
+      effect: Effect.Effect<XA, XE, R>,
+      options?:
+        | Runtime.RunForkOptions & { readonly propagateInterruption?: boolean | undefined }
+        | undefined
+    ): Promise<XA> =>
+      new Promise((resolve, reject) =>
+        runFork(effect, options).addObserver((exit) => {
+          if (Exit.isSuccess(exit)) {
+            resolve(exit.value)
+          } else {
+            reject(Cause.squash(exit.cause))
+          }
+        })
+      )
+  )
+
+/**
+ * If any of the Fiber's in the handle terminate with a failure,
+ * the returned Effect will terminate with the first failure that occurred.
+ *
+ * @since 2.0.0
+ * @categories combinators
+ * @example
+ * ```ts
+ * import { Effect, FiberHandle } from "effect";
+ *
+ * Effect.gen(function* (_) {
+ *   const handle = yield* _(FiberHandle.make());
+ *   yield* _(FiberHandle.set(handle, Effect.runFork(Effect.fail("error"))));
+ *
+ *   // parent fiber will fail with "error"
+ *   yield* _(FiberHandle.join(handle));
+ * });
+ * ```
+ */
+export const join = <A, E>(self: FiberHandle<A, E>): Effect.Effect<void, E> =>
+  Deferred.await(self.deferred as Deferred.Deferred<void, E>)
+
+/**
+ * Wait for the fiber in the FiberHandle to complete.
+ *
+ * @since 3.13.0
+ * @categories combinators
+ */
+export const awaitEmpty = <A, E>(self: FiberHandle<A, E>): Effect.Effect<void, E> =>
+  Effect.suspend(() => {
+    if (self.state._tag === "Closed" || self.state.fiber === undefined) {
+      return Effect.void
+    }
+    return Fiber.await(self.state.fiber)
+  })