<A>(self: TxChunk<A>): Effect.Effect<number>Gets the size of the TxChunk.
Example (Getting the size)
import { Effect, TxChunk } from "effect"
const program = Effect.gen(function*() {
const txChunk = yield* TxChunk.fromIterable([1, 2, 3, 4, 5])
// Get the current size - automatically transactional
const currentSize = yield* TxChunk.size(txChunk)
console.log(currentSize) // 5
// Size is tracked for conflict detection
yield* TxChunk.append(txChunk, 6)
const newSize = yield* TxChunk.size(txChunk)
console.log(newSize) // 6
})combinators
Source effect/TxChunk.ts:4692 lines
export const const size: <A>(
self: TxChunk<A>
) => Effect.Effect<number>
Gets the size of the TxChunk.
Example (Getting the size)
import { Effect, TxChunk } from "effect"
const program = Effect.gen(function*() {
const txChunk = yield* TxChunk.fromIterable([1, 2, 3, 4, 5])
// Get the current size - automatically transactional
const currentSize = yield* TxChunk.size(txChunk)
console.log(currentSize) // 5
// Size is tracked for conflict detection
yield* TxChunk.append(txChunk, 6)
const newSize = yield* TxChunk.size(txChunk)
console.log(newSize) // 6
})
size = <function (type parameter) A in <A>(self: TxChunk<A>): Effect.Effect<number>A>(self: TxChunk<A>(parameter) self: {
ref: TxRef.TxRef<Chunk.Chunk<A>>;
toString: () => string;
toJSON: () => unknown;
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; <…;
}
interface TxChunk<in out A>TxChunk is a transactional chunk data structure that provides Software Transactional Memory (STM)
semantics for chunk operations.
Details
Accessed values are tracked by the transaction in order to detect conflicts and to track changes.
A transaction will retry whenever a conflict is detected or whenever the transaction explicitly
calls Effect.txRetry and any of the accessed TxChunk values change.
Example (Using a transactional chunk)
import { Chunk, Effect, TxChunk } from "effect"
const program = Effect.gen(function*() {
// Create a transactional chunk
const txChunk: TxChunk.TxChunk<number> = yield* TxChunk.fromIterable([
1,
2,
3
])
// Single operations - no explicit transaction needed
yield* TxChunk.append(txChunk, 4)
const result = yield* TxChunk.get(txChunk)
console.log(Chunk.toReadonlyArray(result)) // [1, 2, 3, 4]
// Multi-step atomic operation - use explicit transaction
yield* Effect.tx(
Effect.gen(function*() {
yield* TxChunk.prepend(txChunk, 0)
yield* TxChunk.append(txChunk, 5)
})
)
const finalResult = yield* TxChunk.get(txChunk)
console.log(Chunk.toReadonlyArray(finalResult)) // [0, 1, 2, 3, 4, 5]
})
TxChunk<function (type parameter) A in <A>(self: TxChunk<A>): Effect.Effect<number>A>): import EffectEffect.type Effect.Effect = /*unresolved*/ anyEffect<number> =>
const modify: {
<A, R>(
f: (
current: Chunk.Chunk<NoInfer<A>>
) => [
returnValue: R,
newValue: Chunk.Chunk<A>
]
): (self: TxChunk<A>) => Effect.Effect<R>
<A, R>(
self: TxChunk<A>,
f: (
current: Chunk.Chunk<A>
) => [
returnValue: R,
newValue: Chunk.Chunk<A>
]
): Effect.Effect<R>
}
self: TxChunk<A>(parameter) self: {
ref: TxRef.TxRef<Chunk.Chunk<A>>;
toString: () => string;
toJSON: () => unknown;
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; <…;
}
current: Chunk.Chunk<A>(parameter) current: {
length: number;
right: Chunk<A>;
left: Chunk<A>;
backing: Backing<A>;
depth: number;
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; <…;
toString: () => string;
toJSON: () => unknown;
}
import ChunkChunk.size(current: Chunk.Chunk<A>(parameter) current: {
length: number;
right: Chunk<A>;
left: Chunk<A>;
backing: Backing<A>;
depth: number;
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; <…;
toString: () => string;
toJSON: () => unknown;
}
current: Chunk.Chunk<A>(parameter) current: {
length: number;
right: Chunk<A>;
left: Chunk<A>;
backing: Backing<A>;
depth: number;
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; <…;
toString: () => string;
toJSON: () => unknown;
}
Referenced by 1 symbols