feat: add Vue adapter

Add Vue adapter

package.json

@@ -39,12 +39,13 @@
     }
   },
   "devDependencies": {
-    "@commitlint/parse": "^16.2.1",
+    "@commitlint/parse": "^17.6.5",
     "@nrwl/nx-cloud": "latest",
     "@testing-library/jest-dom": "^5.16.5",
     "@testing-library/react": "^14.0.0",
     "@testing-library/react-hooks": "^8.0.1",
     "@testing-library/user-event": "^14.4.3",
+    "@testing-library/vue": "^7.0.0",
     "@tsconfig/svelte": "^3.0.0",
     "@types/eslint": "^8.44.2",
     "@types/luxon": "^3.3.0",

packages/vue-store/.eslintrc.cjs

@@ -0,0 +1,14 @@
+// @ts-check
+
+/** @type {import('eslint').Linter.Config} */
+const config = {
+  parserOptions: {
+    tsconfigRootDir: __dirname,
+    project: './tsconfig.json',
+  },
+  rules: {
+    'no-unused-vars': 'off',
+  },
+}
+
+module.exports = config

packages/vue-store/package.json

@@ -0,0 +1,78 @@
+{
+  "name": "@tanstack/vue-store",
+  "version": "0.0.1",
+  "author": "Tanner Linsley",
+  "license": "MIT",
+  "repository": "tanstack/react-store",
+  "homepage": "https://tanstack.com/",
+  "description": "",
+  "publishConfig": {
+    "registry": "https://registry.npmjs.org/"
+  },
+  "funding": {
+    "type": "github",
+    "url": "https://github.com/sponsors/tannerlinsley"
+  },
+  "type": "module",
+  "types": "build/legacy/index.d.ts",
+  "main": "build/legacy/index.cjs",
+  "module": "build/legacy/index.js",
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./build/modern/index.d.ts",
+        "default": "./build/modern/index.js"
+      },
+      "require": {
+        "types": "./build/modern/index.d.cts",
+        "default": "./build/modern/index.cjs"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "sideEffects": false,
+  "scripts": {
+    "clean": "rimraf ./build && rimraf ./coverage",
+    "test:eslint": "eslint --ext .ts,.tsx ./src",
+    "test:types": "tsc",
+    "test:lib": "pnpm run test:2 && pnpm run test:2.7 && pnpm run test:3",
+    "test:2": "vue-demi-switch 2 vue2 && vitest",
+    "test:2.7": "vue-demi-switch 2.7 vue2.7 && vitest",
+    "test:3": "vue-demi-switch 3 && vitest",
+    "test:lib:dev": "pnpm run test:lib --watch",
+    "test:build": "publint --strict",
+    "build": "tsup"
+  },
+  "nx": {
+    "targets": {
+      "test:lib": {
+        "dependsOn": [
+          "test:types"
+        ]
+      }
+    }
+  },
+  "files": [
+    "build",
+    "src"
+  ],
+  "dependencies": {
+    "@tanstack/store": "workspace:*",
+    "vue-demi": "^0.14.6"
+  },
+  "devDependencies": {
+    "@vue/composition-api": "^1.7.2",
+    "vue": "^3.3.4",
+    "vue2": "npm:vue@2.6",
+    "vue2.7": "npm:vue@2.7"
+  },
+  "peerDependencies": {
+    "@vue/composition-api": "^1.2.1",
+    "vue": "^2.5.0 || ^3.0.0"
+  },
+  "peerDependenciesMeta": {
+    "@vue/composition-api": {
+      "optional": true
+    }
+  }
+}

packages/vue-store/src/__tests__/index.test.tsx

@@ -0,0 +1,81 @@
+import { h, defineComponent } from 'vue'
+import { render, waitFor } from '@testing-library/vue'
+import '@testing-library/jest-dom'
+import { Store } from '@tanstack/store'
+import { useStore } from '../index'
+import userEvent from '@testing-library/user-event'
+
+const user = userEvent.setup()
+
+describe('useStore', () => {
+  it('allows us to select state using a selector', async () => {
+    const store = new Store({
+      select: 0,
+      ignored: 1,
+    })
+
+    const Comp = defineComponent(() => {
+      const storeVal = useStore(store, (state) => state.select)
+
+      return () => <p>Store: {storeVal.value}</p>
+    })
+
+    const { getByText } = render(<Comp />)
+    expect(getByText('Store: 0')).toBeInTheDocument()
+  })
+
+  it('only triggers a re-render when selector state is updated', async () => {
+    const store = new Store({
+      select: 0,
+      ignored: 1,
+    })
+
+    const Comp = defineComponent(() => {
+      const storeVal = useStore(store, (state) => state.select)
+
+      const fn = vi.fn()
+
+      return () => {
+        fn()
+        return (
+          <div>
+            <p>Number rendered: {fn.mock.calls.length}</p>
+            <p>Store: {storeVal.value}</p>
+            <button
+              onClick={() =>
+                store.setState((v) => ({
+                  ...v,
+                  select: 10,
+                }))
+              }
+            >
+              Update select
+            </button>
+            <button
+              onClick={() =>
+                store.setState((v) => ({
+                  ...v,
+                  ignored: 10,
+                }))
+              }
+            >
+              Update ignored
+            </button>
+          </div>
+        )
+      }
+    })
+
+    const { getByText } = render(<Comp />)
+    expect(getByText('Store: 0')).toBeInTheDocument()
+    expect(getByText('Number rendered: 1')).toBeInTheDocument()
+
+    await user.click(getByText('Update select'))
+
+    await waitFor(() => expect(getByText('Store: 10')).toBeInTheDocument())
+    expect(getByText('Number rendered: 2')).toBeInTheDocument()
+
+    await user.click(getByText('Update ignored'))
+    expect(getByText('Number rendered: 2')).toBeInTheDocument()
+  })
+})

packages/vue-store/src/index.ts

@@ -0,0 +1,67 @@
+import type { AnyUpdater, Store } from '@tanstack/store'
+import { readonly, type Ref, ref, toRaw, toValue, watch } from 'vue-demi'
+
+export * from '@tanstack/store'
+
+export type NoInfer<T> = [T][T extends any ? 0 : never]
+
+export function useStore<
+  TState,
+  TSelected = NoInfer<TState>,
+  TUpdater extends AnyUpdater = AnyUpdater,
+>(
+  store: Store<TState, TUpdater>,
+  selector: (state: NoInfer<TState>) => TSelected = (d) => d as any,
+) {
+  const slice = ref(selector(store.state)) as Ref<TSelected>
+
+  watch(
+    () => toValue(store),
+    (value, _oldValue, onCleanup) => {
+      const unsub = value.subscribe(() => {
+        const data = selector(store.state)
+        if (shallow(toRaw(slice.value), data)) {
+          return
+        }
+        slice.value = data
+      })
+
+      onCleanup(() => {
+        unsub()
+      })
+    },
+    { immediate: true },
+  )
+
+  return readonly(slice)
+}
+
+export function shallow<T>(objA: T, objB: T) {
+  if (Object.is(objA, objB)) {
+    return true
+  }
+
+  if (
+    typeof objA !== 'object' ||
+    objA === null ||
+    typeof objB !== 'object' ||
+    objB === null
+  ) {
+    return false
+  }
+
+  const keysA = Object.keys(objA)
+  if (keysA.length !== Object.keys(objB).length) {
+    return false
+  }
+
+  for (let i = 0; i < keysA.length; i++) {
+    if (
+      !Object.prototype.hasOwnProperty.call(objB, keysA[i] as string) ||
+      !Object.is(objA[keysA[i] as keyof T], objB[keysA[i] as keyof T])
+    ) {
+      return false
+    }
+  }
+  return true
+}

packages/vue-store/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "jsx": "preserve",
+    "types": ["vitest/globals"],
+    "noUnusedLocals": false
+  },
+  "include": ["src/**/*.ts", "src/**/*.tsx", ".eslintrc.cjs", "tsup.config.js"]
+}

packages/vue-store/tsup.config.js

@@ -0,0 +1,9 @@
+// @ts-check
+
+import { defineConfig } from 'tsup'
+import { legacyConfig, modernConfig } from '../../scripts/getTsupConfig.js'
+
+export default defineConfig([
+  modernConfig({ entry: ['src/*.ts'] }),
+  legacyConfig({ entry: ['src/*.ts'] }),
+])

packages/vue-store/vitest.config.ts

@@ -0,0 +1,16 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    name: 'vue-store',
+    dir: './src',
+    watch: false,
+    environment: 'jsdom',
+    globals: true,
+    coverage: { provider: 'istanbul' },
+  },
+  esbuild: {
+    jsxFactory: 'h',
+    jsxFragment: 'Fragment',
+  },
+})