Add PubSub module
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This commit is contained in:
Julien Valverdé
2025-11-15 01:19:14 +01:00
parent 3b90384f8f
commit f78b9f318a
3 changed files with 16 additions and 24 deletions
+1 -24
View File
@@ -1,4 +1,4 @@
import { Effect, Equivalence, Option, PubSub, Ref, type Scope, Stream } from "effect"
import { Effect, Equivalence, Option, Stream } from "effect"
import * as React from "react"
import * as Component from "./Component.js"
@@ -30,27 +30,4 @@ export const useStream: {
return reactStateValue as Option.Some<A>
})
export const useStreamFromReactiveValues = Effect.fnUntraced(function* <const A extends React.DependencyList>(
values: A
): Effect.fn.Return<Stream.Stream<A>, never, Scope.Scope> {
const { latest, pubsub, stream } = yield* Component.useOnMount(() => Effect.Do.pipe(
Effect.bind("latest", () => Ref.make(values)),
Effect.bind("pubsub", () => Effect.acquireRelease(PubSub.unbounded<A>(), PubSub.shutdown)),
Effect.let("stream", ({ latest, pubsub }) => latest.pipe(
Effect.flatMap(a => Effect.map(
Stream.fromPubSub(pubsub, { scoped: true }),
s => Stream.concat(Stream.make(a), s),
)),
Stream.unwrapScoped,
)),
))
yield* Component.useReactEffect(() => Ref.set(latest, values).pipe(
Effect.andThen(PubSub.publish(pubsub, values)),
Effect.unlessEffect(PubSub.isShutdown(pubsub)),
), values)
return stream
})
export * from "effect/Stream"