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0.2.0 #5

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Thilawyn merged 59 commits from next into master 2026-05-30 06:10:54 +02:00
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packages/effect-lens/src/Lens.ts
+62 -62
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@@ -79,7 +79,7 @@ export const asLensImpl = <A, ER, EW, RR, RW>(
lens: Lens<A, ER, EW, RR, RW>
): LensImpl<A, ER, EW, RR, RW> => {
if (!isLensImpl(lens))
throw new Error("Not a 'LensImpl'.")
throw new Error("Not a 'LensImpl'")
return lens as LensImpl<A, ER, EW, RR, RW>
}
@@ -122,67 +122,6 @@ export const make = <A, ER, EW, RR, RW>(
): Lens<A, ER, EW, RR, RW> => new LensLazyImpl(source)
export declare namespace DerivedLensImpl {
export interface Source<
in out A,
in out B,
in out ER = never,
in out ESR = never,
in out EW = never,
in out ESW = never,
in out RR = never,
in out RSR = never,
in out RW = never,
in out RSW = never,
> {
readonly resolve: (effect: Effect.Effect<LensImpl.Resolved<B, ESW, RSW>, ESR, RSR>) => Effect.Effect<LensImpl.Resolved<A, EW, RW>, ER, RR>
readonly mapStream: (stream: Stream.Stream<B, ESR, RSR>) => Stream.Stream<A, ER, RR>
readonly mapLock: (lock: Effect.Effect<LensImpl.Lock, ESW, RSW>) => Effect.Effect<LensImpl.Lock, EW, RW>
}
}
export class DerivedLensImpl<
in out A,
in out B,
in out ER = never,
in out PER = never,
in out EW = never,
in out PEW = never,
in out RR = never,
in out PRR = never,
in out RW = never,
in out PRW = never,
>
extends LensImpl<A, ER, EW, RR, RW> {
constructor(
readonly parent: LensImpl<B, PER, PEW, PRR, PRW>,
readonly source: DerivedLensImpl.Source<A, B, ER, PER, EW, PEW, RR, PRR, RW, PRW>,
) {
super()
}
get resolve() { return this.source.resolve(this.parent.resolve) }
get changes() { return this.source.mapStream(this.parent.changes) }
get lock() { return this.source.mapLock(this.parent.lock) }
}
/**
* Derives a new `Lens` by linking a step to an existing parent lens.
*/
export const derive: {
<A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
self: Lens<B, ER, EW, RR, RW>,
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): Lens<A, ER2, EW2, RR2, RW2>
<A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): (self: Lens<B, ER, EW, RR, RW>) => Lens<A, ER2, EW2, RR2, RW2>
} = Function.dual(2, <A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
self: Lens<B, ER, EW, RR, RW>,
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): Lens<A, ER2, EW2, RR2, RW2> => new DerivedLensImpl(asLensImpl(self), source))
export class UnwrappedLensImpl<in out A, in out ER, in out EW, in out RR, in out RW, in out E1, in out R1>
extends LensImpl<A, ER | E1, EW | E1, RR | R1, RW | R1> {
constructor(
@@ -337,6 +276,67 @@ export const fromSubscriptionRef = <A>(
): Lens<A, never, never, never, never> => new SubscriptionRefLensImpl(ref as SubscriptionRefLensImpl.SubscriptionRefWithInternals<A>)
export declare namespace DerivedLensImpl {
export interface Source<
in out A,
in out B,
in out ER = never,
in out ESR = never,
in out EW = never,
in out ESW = never,
in out RR = never,
in out RSR = never,
in out RW = never,
in out RSW = never,
> {
readonly resolve: (effect: Effect.Effect<LensImpl.Resolved<B, ESW, RSW>, ESR, RSR>) => Effect.Effect<LensImpl.Resolved<A, EW, RW>, ER, RR>
readonly mapStream: (stream: Stream.Stream<B, ESR, RSR>) => Stream.Stream<A, ER, RR>
readonly mapLock: (lock: Effect.Effect<LensImpl.Lock, ESW, RSW>) => Effect.Effect<LensImpl.Lock, EW, RW>
}
}
export class DerivedLensImpl<
in out A,
in out B,
in out ER = never,
in out PER = never,
in out EW = never,
in out PEW = never,
in out RR = never,
in out PRR = never,
in out RW = never,
in out PRW = never,
>
extends LensImpl<A, ER, EW, RR, RW> {
constructor(
readonly parent: LensImpl<B, PER, PEW, PRR, PRW>,
readonly source: DerivedLensImpl.Source<A, B, ER, PER, EW, PEW, RR, PRR, RW, PRW>,
) {
super()
}
get resolve() { return this.source.resolve(this.parent.resolve) }
get changes() { return this.source.mapStream(this.parent.changes) }
get lock() { return this.source.mapLock(this.parent.lock) }
}
/**
* Derives a new `Lens` by linking a step to an existing parent lens.
*/
export const derive: {
<A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
self: Lens<B, ER, EW, RR, RW>,
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): Lens<A, ER2, EW2, RR2, RW2>
<A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): (self: Lens<B, ER, EW, RR, RW>) => Lens<A, ER2, EW2, RR2, RW2>
} = Function.dual(2, <A, B, ER, EW, RR, RW, ER2, EW2, RR2, RW2>(
self: Lens<B, ER, EW, RR, RW>,
source: DerivedLensImpl.Source<A, B, ER2, ER, EW2, EW, RR2, RR, RW2, RW>,
): Lens<A, ER2, EW2, RR2, RW2> => new DerivedLensImpl(asLensImpl(self), source))
/**
* Derives a new `Lens` by applying synchronous getters and setters over the focused value.
*/