New store implementation as store2.ts

package.json

@@ -71,14 +71,15 @@
     "build:vanilla:utils": "rollup -c --config-vanilla_utils",
     "build:react": "rollup -c --config-react --client-only",
     "build:react:utils": "rollup -c --config-react_utils --client-only",
+    "build:experimental": "rollup -c --config-experimental",
     "postbuild": "yarn patch-d-ts && yarn copy && yarn patch-ts3.8 && yarn patch-old-ts && yarn patch-esm-ts && yarn patch-readme",
     "prettier": "prettier '*.{js,json,md}' '{src,tests,benchmarks,docs}/**/*.{ts,tsx,md,mdx}' --write",
     "prettier:ci": "prettier '*.{js,json,md}' '{src,tests,benchmarks,docs}/**/*.{ts,tsx,md,mdx}' --list-different",
     "eslint": "eslint --fix --no-eslintrc --c .eslintrc.json '*.{js,json,ts}' '{src,tests,benchmarks}/**/*.{ts,tsx}'",
     "eslint:ci": "eslint --no-eslintrc --c .eslintrc.json '*.{js,json,ts}' '{src,tests,benchmarks}/**/*.{ts,tsx}'",
     "pretest": "tsc",
     "test": "vitest --ui --coverage",
-    "test:ci": "vitest",
+    "test:ci": "vitest && USE_STORE2=true vitest",
     "patch-d-ts": "node -e \"var {entries}=require('./rollup.config.js');require('shelljs').find('dist/**/*.d.ts').forEach(f=>{entries.forEach(({find,replacement})=>require('shelljs').sed('-i',new RegExp(' from \\''+find.source.slice(0,-1)+'\\';$'),' from \\''+replacement+'\\';',f));require('shelljs').sed('-i',/ from '(\\.[^']+)\\.ts';$/,' from \\'\\$1\\';',f)})\"",
     "copy": "shx cp -r dist/src/* dist/esm && shx cp -r dist/src/* dist && shx rm -rf dist/src && shx rm -rf dist/{src,tests} && downlevel-dts dist dist/ts3.8 --to=3.8 && shx cp package.json readme.md LICENSE dist && json -I -f dist/package.json -e \"this.private=false; this.devDependencies=undefined; this.optionalDependencies=undefined; this.scripts=undefined; this.prettier=undefined;\"",
     "patch-ts3.8": "node -e \"require('shelljs').find('dist/ts3.8/**/*.d.ts').forEach(f=>require('fs').appendFileSync(f,'declare type Awaited<T> = T extends Promise<infer V> ? V : T;'))\"",

rollup.config.js

@@ -76,6 +76,7 @@ function createESMConfig(input, output, clientOnly) {
               'import.meta.env?.MODE':
                 '(import.meta.env ? import.meta.env.MODE : undefined)',
             }),
+        'import.meta.env?.USE_STORE2': 'false',
         delimiters: ['\\b', '\\b(?!(\\.|/))'],
         preventAssignment: true,
       }),
@@ -95,6 +96,7 @@ function createCommonJSConfig(input, output, clientOnly) {
       resolve({ extensions }),
       replace({
         'import.meta.env?.MODE': 'process.env.NODE_ENV',
+        'import.meta.env?.USE_STORE2': 'false',
         delimiters: ['\\b', '\\b(?!(\\.|/))'],
         preventAssignment: true,
       }),
@@ -132,6 +134,7 @@ function createUMDConfig(input, output, env, clientOnly) {
       resolve({ extensions }),
       replace({
         'import.meta.env?.MODE': JSON.stringify(env),
+        'import.meta.env?.USE_STORE2': 'false',
         delimiters: ['\\b', '\\b(?!(\\.|/))'],
         preventAssignment: true,
       }),
@@ -155,6 +158,7 @@ function createSystemConfig(input, output, env, clientOnly) {
       resolve({ extensions }),
       replace({
         'import.meta.env?.MODE': JSON.stringify(env),
+        'import.meta.env?.USE_STORE2': 'false',
         delimiters: ['\\b', '\\b(?!(\\.|/))'],
         preventAssignment: true,
       }),

src/experimental.ts

@@ -0,0 +1,11 @@
+export { atom } from './vanilla/atom.ts'
+export type { Atom, WritableAtom, PrimitiveAtom } from './vanilla/atom.ts'
+export { createStore, getDefaultStore } from './vanilla/store2.ts'
+export type {
+  Getter,
+  Setter,
+  ExtractAtomValue,
+  ExtractAtomArgs,
+  ExtractAtomResult,
+  SetStateAction,
+} from './vanilla/typeUtils.ts'

src/types.d.ts

@@ -1,5 +1,6 @@
 declare interface ImportMeta {
   env?: {
     MODE: string
+    USE_STORE2?: string
   }
 }

src/vanilla.ts

@@ -1,6 +1,18 @@
 export { atom } from './vanilla/atom.ts'
 export type { Atom, WritableAtom, PrimitiveAtom } from './vanilla/atom.ts'
-export { createStore, getDefaultStore } from './vanilla/store.ts'
+
+// export { createStore, getDefaultStore } from './vanilla/store.ts'
+import * as store from './vanilla/store.ts'
+import * as store2 from './vanilla/store2.ts'
+type CreateStore = typeof store.createStore
+type GetDefaultStore = typeof store.getDefaultStore
+export const createStore: CreateStore = import.meta.env?.USE_STORE2
+  ? store2.createStore
+  : store.createStore
+export const getDefaultStore: GetDefaultStore = import.meta.env?.USE_STORE2
+  ? store2.getDefaultStore
+  : store.getDefaultStore
+
 export type {
   Getter,
   Setter,