feat(primitives): add new set methods and tests for reatomSet

package.json

@@ -42,6 +42,7 @@
     "@types/react-dom": "^18.2.22",
     "@types/use-sync-external-store": "^0.0.6",
     "@vitejs/plugin-react": "^4.2.1",
+    "core-js": "^3.37.1",
     "history": "^5.3.0",
     "husky": "^8.0.3 ",
     "linkedom": "^0.16.10",

packages/primitives/src/index.test.ts

@@ -2,5 +2,6 @@ import './reatomArray.test'
 import './reatomEnum.test'
 import './reatomLinkedList.test'
 import './reatomRecord.test'
+import './reatomSet.test'
 import './reatomString.test'
 import './withComputed.test'

packages/primitives/src/reatomSet.test.ts

@@ -0,0 +1,126 @@
+import 'core-js/proposals/set-methods-v2'
+
+import { createCtx } from '@reatom/core'
+import { suite } from 'uvu'
+import * as assert from 'uvu/assert'
+
+import { reatomSet } from './reatomSet'
+
+const test = suite('reatomSet')
+
+test(`reatomSet. init`, () => {
+  const ctx = createCtx()
+
+  assert.equal(ctx.get(reatomSet(new Set([1, 2, 3]))), new Set([1, 2, 3]))
+})
+
+test(`reatomSet. add`, () => {
+  const ctx = createCtx()
+
+  assert.equal(reatomSet(new Set([1, 2, 3])).add(ctx, 4), new Set([1, 2, 3, 4]))
+})
+
+test(`reatomSet. delete`, () => {
+  const ctx = createCtx()
+
+  assert.equal(reatomSet(new Set([1, 2, 3])).delete(ctx, 3), new Set([1, 2]))
+})
+
+test(`reatomSet. toggle`, () => {
+  const ctx = createCtx()
+  const a = reatomSet(new Set([1, 2, 3]))
+
+  assert.equal(a.toggle(ctx, 3), new Set([1, 2]))
+  assert.equal(a.toggle(ctx, 3), new Set([1, 2, 3]))
+})
+
+test(`reatomSet. clear`, () => {
+  const ctx = createCtx()
+
+  assert.equal(reatomSet(new Set([1, 2, 3])).clear(ctx), new Set())
+})
+
+test(`reatomSet. reset`, () => {
+  const ctx = createCtx()
+  const a = reatomSet(new Set([1, 2, 3]))
+
+  assert.equal(a.add(ctx, 4), new Set([1, 2, 3, 4]))
+  assert.equal(a.reset(ctx), new Set([1, 2, 3]))
+})
+
+test(`reatomSet. intersection`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).intersection(ctx, new Set([2, 3, 4])),
+    new Set([2, 3]),
+  )
+})
+
+test(`reatomSet. union`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).union(ctx, new Set([2, 3, 4])),
+    new Set([1, 2, 3, 4]),
+  )
+})
+
+test(`reatomSet. difference`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).difference(ctx, new Set([2, 3, 4])),
+    new Set([1]),
+  )
+})
+
+test(`reatomSet. symmetricDifference`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).symmetricDifference(ctx, new Set([2, 3, 4])),
+    new Set([1, 4]),
+  )
+})
+
+test(`reatomSet. isSubsetOf`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isSubsetOf(ctx, new Set([2, 3, 4])),
+    false,
+  )
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isSubsetOf(ctx, new Set([1, 2, 3])),
+    true,
+  )
+})
+
+test(`reatomSet. isSupersetOf`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isSupersetOf(ctx, new Set([2, 3, 4])),
+    false,
+  )
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isSupersetOf(ctx, new Set([1, 2, 3])),
+    true,
+  )
+})
+
+test(`reatomSet. isDisjointFrom`, () => {
+  const ctx = createCtx()
+
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isDisjointFrom(ctx, new Set([4, 5, 6])),
+    true,
+  )
+  assert.equal(
+    reatomSet(new Set([1, 2, 3])).isDisjointFrom(ctx, new Set([3, 4, 5])),
+    false,
+  )
+})
+
+test.run()

packages/primitives/src/reatomSet.ts

@@ -4,13 +4,31 @@ import { withAssign } from './withAssign'
 export interface SetAtom<T> extends AtomMut<Set<T>> {
   add: Action<[el: T], Set<T>>
   delete: Action<[el: T], Set<T>>
+  toggle: Action<[el: T], Set<T>>
   clear: Action<[], Set<T>>
   reset: Action<[], Set<T>>
+  intersection: Action<[set: Set<T>], Set<T>>
+  union: Action<[set: Set<T>], Set<T>>
+  difference: Action<[set: Set<T>], Set<T>>
+  symmetricDifference: Action<[set: Set<T>], Set<T>>
   has: (ctx: Ctx, el: T) => boolean
+  isSubsetOf: (ctx: Ctx, set: Set<T>) => boolean
+  isSupersetOf: (ctx: Ctx, set: Set<T>) => boolean
+  isDisjointFrom: (ctx: Ctx, set: Set<T>) => boolean
   /** @deprecated */
   set: Action<[el: T], Set<T>>
 }
 
+interface ProposalSet<T> extends Set<T> {
+  difference(other: Set<T>): Set<T>
+  intersection(other: Set<T>): Set<T>
+  isDisjointFrom(other: Set<T>): boolean
+  isSubsetOf(other: Set<T>): boolean
+  isSupersetOf(other: Set<T>): boolean
+  symmetricDifference(other: Set<T>): Set<T>
+  union(other: Set<T>): Set<T>
+}
+
 export const reatomSet = <T>(
   initState = new Set<T>(),
   name?: string,
@@ -43,6 +61,42 @@ export const reatomSet = <T>(
         })
       }, `${name}.clear`),
       reset: action((ctx) => target(ctx, initState), `${name}.reset`),
+      intersection: action(
+        (ctx, set) =>
+          target(ctx, (prev) => (prev as ProposalSet<T>).intersection(set)),
+        `${name}.intersection`,
+      ),
+      union: action(
+        (ctx, set) =>
+          target(ctx, (prev) => (prev as ProposalSet<T>).union(set)),
+        `${name}.union`,
+      ),
+      difference: action(
+        (ctx, set) =>
+          target(ctx, (prev) => (prev as ProposalSet<T>).difference(set)),
+        `${name}.difference`,
+      ),
+      symmetricDifference: action(
+        (ctx, set) =>
+          target(ctx, (prev) =>
+            (prev as ProposalSet<T>).symmetricDifference(set),
+          ),
+        `${name}.symmetricDifference`,
+      ),
+      toggle: action((ctx, el) => {
+        return target(ctx, (prev) => {
+          if (!prev.has(el)) return new Set(prev).add(el)
+          const next = new Set(prev)
+          next.delete(el)
+          return next
+        })
+      }, `${name}.toggle`),
       has: (ctx: Ctx, el: T) => ctx.get(target).has(el),
+      isSubsetOf: (ctx: Ctx, set: Set<T>) =>
+        (ctx.get(target) as ProposalSet<T>).isSubsetOf(set),
+      isSupersetOf: (ctx: Ctx, set: Set<T>) =>
+        (ctx.get(target) as ProposalSet<T>).isSupersetOf(set),
+      isDisjointFrom: (ctx: Ctx, set: Set<T>) =>
+        (ctx.get(target) as ProposalSet<T>).isDisjointFrom(set),
     })),
   )