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Viewing / Editing File: MergeDecision.ts

/**
 * @since 2.0.0
 */
import type * as Effect from "./Effect.js"
import type * as Exit from "./Exit.js"
import * as internal from "./internal/channel/mergeDecision.js"
import type * as Types from "./Types.js"

/**
 * @since 2.0.0
 * @category symbols
 */
export const MergeDecisionTypeId: unique symbol = internal.MergeDecisionTypeId

/**
 * @since 2.0.0
 * @category symbols
 */
export type MergeDecisionTypeId = typeof MergeDecisionTypeId

/**
 * @since 2.0.0
 * @category models
 */
export interface MergeDecision<out R, in E0, in Z0, out E, out Z> extends MergeDecision.Variance<R, E0, Z0, E, Z> {}

/**
 * @since 2.0.0
 */
export declare namespace MergeDecision {
  /**
   * @since 2.0.0
   * @category models
   */
  export interface Variance<out R, in E0, in Z0, out E, out Z> {
    readonly [MergeDecisionTypeId]: {
      _R: Types.Covariant<R>
      _E0: Types.Contravariant<E0>
      _Z0: Types.Contravariant<Z0>
      _E: Types.Covariant<E>
      _Z: Types.Covariant<Z>
    }
  }
}

/**
 * @since 2.0.0
 * @category constructors
 */
export const Done: <Z, E, R>(effect: Effect.Effect<Z, E, R>) => MergeDecision<R, unknown, unknown, E, Z> = internal.Done

/**
 * @since 2.0.0
 * @category constructors
 */
export const Await: <R, E0, Z0, E, Z>(
  f: (exit: Exit.Exit<Z0, E0>) => Effect.Effect<Z, E, R>
) => MergeDecision<R, E0, Z0, E, Z> = internal.Await

/**
 * @since 2.0.0
 * @category constructors
 */
export const AwaitConst: <Z, E, R>(effect: Effect.Effect<Z, E, R>) => MergeDecision<R, unknown, unknown, E, Z> =
  internal.AwaitConst

/**
 * Returns `true` if the specified value is a `MergeDecision`, `false`
 * otherwise.
 *
 * @since 2.0.0
 * @category refinements
 */
export const isMergeDecision: (u: unknown) => u is MergeDecision<unknown, unknown, unknown, unknown, unknown> =
  internal.isMergeDecision

/**
 * @since 2.0.0
 * @category folding
 */
export const match: {
  /**
   * @since 2.0.0
   * @category folding
   */
  <R, E0, Z0, E, Z, Z2>(
   options: {
     readonly onDone: (effect: Effect.Effect<Z, E, R>) => Z2
     readonly onAwait: (f: (exit: Exit.Exit<Z0, E0>) => Effect.Effect<Z, E, R>) => Z2
   }
  ): (self: MergeDecision<R, E0, Z0, E, Z>) => Z2
  /**
   * @since 2.0.0
   * @category folding
   */
  <R, E0, Z0, E, Z, Z2>(
   self: MergeDecision<R, E0, Z0, E, Z>,
   options: {
     readonly onDone: (effect: Effect.Effect<Z, E, R>) => Z2
     readonly onAwait: (f: (exit: Exit.Exit<Z0, E0>) => Effect.Effect<Z, E, R>) => Z2
   }
  ): Z2
} = internal.match

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