63 lines
2.5 KiB
JavaScript
63 lines
2.5 KiB
JavaScript
import * as Effect from "../Effect.js";
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import * as Effectable from "../Effectable.js";
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import { dual, pipe } from "../Function.js";
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import * as PubSub from "../PubSub.js";
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import * as Readable from "../Readable.js";
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import * as Ref from "../Ref.js";
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import * as Subscribable from "../Subscribable.js";
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import * as Synchronized from "../SynchronizedRef.js";
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import * as circular_ from "./effect/circular.js";
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import * as ref_ from "./ref.js";
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import * as stream from "./stream.js";
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/** @internal */
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const SubscriptionRefSymbolKey = "effect/SubscriptionRef";
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/** @internal */
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export const SubscriptionRefTypeId = /*#__PURE__*/Symbol.for(SubscriptionRefSymbolKey);
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const subscriptionRefVariance = {
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/* c8 ignore next */
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_A: _ => _
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};
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/** @internal */
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class SubscriptionRefImpl extends Effectable.Class {
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ref;
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pubsub;
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semaphore;
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[Readable.TypeId] = Readable.TypeId;
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[Subscribable.TypeId] = Subscribable.TypeId;
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[Ref.RefTypeId] = ref_.refVariance;
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[Synchronized.SynchronizedRefTypeId] = circular_.synchronizedVariance;
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[SubscriptionRefTypeId] = subscriptionRefVariance;
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constructor(ref, pubsub, semaphore) {
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super();
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this.ref = ref;
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this.pubsub = pubsub;
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this.semaphore = semaphore;
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this.get = Ref.get(this.ref);
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}
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commit() {
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return this.get;
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}
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get;
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get changes() {
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return pipe(Ref.get(this.ref), Effect.flatMap(a => Effect.map(stream.fromPubSub(this.pubsub, {
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scoped: true
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}), s => stream.concat(stream.make(a), s))), this.semaphore.withPermits(1), stream.unwrapScoped);
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}
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modify(f) {
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return this.modifyEffect(a => Effect.succeed(f(a)));
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}
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modifyEffect(f) {
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return pipe(Ref.get(this.ref), Effect.flatMap(f), Effect.flatMap(([b, a]) => pipe(Ref.set(this.ref, a), Effect.as(b), Effect.zipLeft(PubSub.publish(this.pubsub, a)))), this.semaphore.withPermits(1));
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}
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}
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/** @internal */
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export const get = self => Ref.get(self.ref);
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/** @internal */
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export const make = value => pipe(Effect.all([PubSub.unbounded(), Ref.make(value), Effect.makeSemaphore(1)]), Effect.map(([pubsub, ref, semaphore]) => new SubscriptionRefImpl(ref, pubsub, semaphore)));
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/** @internal */
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export const modify = /*#__PURE__*/dual(2, (self, f) => self.modify(f));
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/** @internal */
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export const modifyEffect = /*#__PURE__*/dual(2, (self, f) => self.modifyEffect(f));
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/** @internal */
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export const set = /*#__PURE__*/dual(2, (self, value) => pipe(Ref.set(self.ref, value), Effect.zipLeft(PubSub.publish(self.pubsub, value)), self.semaphore.withPermits(1)));
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//# sourceMappingURL=subscriptionRef.js.map
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