effect-ts-folds/src/unfold/effect.d.ts

Recursion schemes for effect-ts.

import { Fix, SumTypeLambda } from '#fix';
import { Traversable as TA } from '@effect/typeclass';
import { IdentityTypeLambda as Id } from '@effect/typeclass/data/Identity';
import { Effect as EF } from 'effect';
import { Kind, TypeLambda } from 'effect/HKT';
/**
 * The return type of all schemes that unfold into an effect.
 * @category unfold
 */
export type EffectUnfold<F extends TypeLambda, A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never> = (a: A) => EF.Effect<Fix<F, E2, R2, I2>, E1, R1>;
/**
 * Same as `Unfolder` but unfolds into an effect.
 * @category unfold
 */
export type EffectUnfolder<Outer extends TypeLambda, Inner extends TypeLambda, A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never> = (a: A) => EF.Effect<Kind<Outer, I2, R2, E2, Kind<Inner, I2, R2, E2, A>>, E1, R1>;
/**
 * Unfold into an effect. A function of the type:
 * `(a: A) ⇒ Effect<F<A, E, R, I>, E, R>`
 * @category unfold
 */
export type EffectCoalgebra<F extends TypeLambda, A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never> = EffectUnfolder<F, Id, A, E1, R1, E2, R2, I2>;
/**
 * Same as {@link RCoalgebra} but unfolds into an effect. A function
 * of the type:
 * `(a: A) ⇒ Effect<F<Either<A, Fix<F, E, R, I>>, E, R, I>, E, R>`
 * @category unfold
 */
export type EffectRCoalgebra<F extends TypeLambda, A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never> = EffectUnfolder<F, SumTypeLambda<F>, A, E1, R1, E2, R2, I2>;
export type AnamorphismE = <F extends TypeLambda>(F: TA.Traversable<F>) => <A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never>(ψ: EffectCoalgebra<F, A, E1, R1, E2, R2, I2>) => EffectUnfold<F, A, E1, R1, E2, R2, I2>;
export type ApomorphismE = <F extends TypeLambda>(F: TA.Traversable<F>) => <A, E1 = unknown, R1 = never, E2 = unknown, R2 = unknown, I2 = never>(ψ: EffectRCoalgebra<F, A, E1, R1, E2, R2, I2>) => EffectUnfold<F, A, E1, R1, E2, R2, I2>;
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