Lint

packages/store/__tests__/index.test.ts

@@ -3,7 +3,6 @@ import {Repository} from "@welshman/relay"
 import {get} from "svelte/store"
 import {afterEach, beforeEach, describe, expect, it, vi} from "vitest"
 import {
-  adapter,
   custom,
   deriveEvents,
   deriveEventsMapped,
@@ -114,28 +113,6 @@ describe("Store utilities", () => {
     })
   })
 
-  describe("adapter", () => {
-    it("should adapt between different types", () => {
-      const source = synced<number>("test", 0)
-      const adapted = adapter({
-        store: source,
-        forward: n => n.toString(),
-        backward: s => parseInt(s, 10),
-      })
-
-      const mockFn = vi.fn()
-      adapted.subscribe(mockFn)
-
-      adapted.set("42")
-      expect(get(source)).toBe(42)
-      expect(mockFn).toHaveBeenLastCalledWith("42")
-
-      adapted.update(s => (parseInt(s, 10) + 1).toString())
-      expect(get(source)).toBe(43)
-      expect(mockFn).toHaveBeenLastCalledWith("43")
-    })
-  })
-
   describe("Event-related stores", () => {
     const mockRepository = {
       query: vi.fn(),

packages/store/src/index.ts

@@ -121,22 +121,6 @@ export const custom = <T>(
   }
 }
 
-// Simple adapter
-
-export const adapter = <Source, Target>({
-  store,
-  forward,
-  backward,
-}: {
-  store: Writable<Source>
-  forward: (x: Source) => Target
-  backward: (x: Target) => Source
-}) => ({
-  ...derived(store, forward),
-  set: (x: Target) => store.set(backward(x)),
-  update: (f: (x: Target) => Target) => store.update((x: Source) => backward(f(forward(x)))),
-})
-
 // Event related stores
 
 export type DeriveEventsMappedOptions<T> = {