(self: TxQueueState): Effect.Effect<boolean>Checks whether the queue is in the open state.
Example (Checking open state)
import { Effect, TxQueue } from "effect"
const program = Effect.gen(function*() {
const queue = yield* TxQueue.bounded<number>(10)
const open = yield* TxQueue.isOpen(queue)
console.log(open) // true
yield* TxQueue.interrupt(queue)
const stillOpen = yield* TxQueue.isOpen(queue)
console.log(stillOpen) // false
})combinators
Source effect/TxQueue.ts:13742 lines
export const const isOpen: (
self: TxQueueState
) => Effect.Effect<boolean>
Checks whether the queue is in the open state.
Example (Checking open state)
import { Effect, TxQueue } from "effect"
const program = Effect.gen(function*() {
const queue = yield* TxQueue.bounded<number>(10)
const open = yield* TxQueue.isOpen(queue)
console.log(open) // true
yield* TxQueue.interrupt(queue)
const stillOpen = yield* TxQueue.isOpen(queue)
console.log(stillOpen) // false
})
isOpen = (self: TxQueueState(parameter) self: {
strategy: "bounded" | "unbounded" | "dropping" | "sliding";
capacity: number;
items: TxChunk.TxChunk<any>;
stateRef: TxRef.TxRef<State<any, any>>;
toString: () => string;
toJSON: () => unknown;
}
import EffectEffect.type Effect.Effect = /*unresolved*/ anyEffect<boolean> =>
import EffectEffect.map(import TxRefTxRef.const get: <A>(
self: TxRef<A>
) => Effect.Effect<A>
Reads the current value of the TxRef.
When to use
Use to read the current value of a TxRef.
Example (Reading transactional references)
import { Effect, TxRef } from "effect"
const program = Effect.gen(function*() {
const counter = yield* TxRef.make(42)
// Read the value within a transaction
const value = yield* Effect.tx(
TxRef.get(counter)
)
console.log(value) // 42
})
get(self: TxQueueState(parameter) self: {
strategy: "bounded" | "unbounded" | "dropping" | "sliding";
capacity: number;
items: TxChunk.TxChunk<any>;
stateRef: TxRef.TxRef<State<any, any>>;
toString: () => string;
toJSON: () => unknown;
}
TxQueueState.stateRef: TxRef.TxRef<State<any, any>>(property) TxQueueState.stateRef: {
version: number;
pending: Map<unknown, () => void>;
value: A;
pipe: { <A>(this: A): A; <A, B = never>(this: A, ab: (_: A) => B): B; <A, B = never, C = never>(this: A, ab: (_: A) => B, bc: (_: B) => C): C; <A, B = never, C = never, D = never>(this: A, ab: (_: A) => B, bc: (_: B) => C, cd: (_: C) => D): D; <…;
}
state: State<any, any>state) => state: State<any, any>state._tag === "Open")