Effect.Serviceのscoped

リソースの獲得・解放を伴うサービス（Lifecycle管理）

code:ts

class Scoped extends Effect.Service<Scoped>()("Scoped", {

scoped: Effect.gen(function* () {

const resource = yield* Effect.acquireRelease(

Console.log("Aquiring...").pipe(Effect.as("foo")),

() => Console.log("Releasing...")

)

yield* Effect.addFinalizer(() => Console.log("Shutting down"))

return { resource }

})

}) {}

実行時に：

code:ts

Effect.runPromise(

program.pipe(Effect.provide(Scoped.Default))

)

ログ:

code:_

Aquiring...

The resource is foo

Shutting down

Releasing...