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Add mapStream
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Julien Valverdé
2026-03-24 11:48:01 +01:00
parent 45bf604381
commit 2646e295d9
1 changed files with 18 additions and 0 deletions
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18
packages/effect-fc/src/Lens.ts
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@@ -139,6 +139,24 @@ export const mapEffect: {
)),
}))
export const mapStream: {
<A, ER, EW, RR, RW>(
self: Lens<A, ER, EW, RR, RW>,
f: (changes: Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>) => Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>,
): Lens<A, ER, EW, RR, RW>
<A, ER, EW, RR, RW>(
f: (changes: Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>) => Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>,
): (self: Lens<A, ER, EW, RR, RW>) => Lens<A, ER, EW, RR, RW>
} = Function.dual(2, <A, ER, EW, RR, RW>(
self: Lens<A, ER, EW, RR, RW>,
f: (changes: Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>) => Stream.Stream<NoInfer<A>, NoInfer<ER>, NoInfer<RR>>,
): Lens<A, ER, EW, RR, RW> => make({
get get() { return self.get },
get changes() { return f(self.changes) },
modify: self.modify,
}))
export const mapField: {
<A extends object, K extends keyof A, ER, EW, RR, RW>(
self: Lens<A, ER, EW, RR, RW>,