[v5] breaking: drop default exports (#2238)

* fix: drop default exports for v5

* chore: remove default from cjs build

* refactor: export shallow in v5

* fix: remove `addModuleExport` option for cjs.

rollup.config.js

@@ -78,22 +78,13 @@ function createESMConfig(input, output) {
   }
 }
 
-function createCommonJSConfig(input, output, options) {
+function createCommonJSConfig(input, output) {
   return {
     input,
     output: {
       file: `${output}.js`,
       format: 'cjs',
       esModule: false,
-      outro: options.addModuleExport
-        ? [
-            `module.exports = ${options.addModuleExport.default};`,
-            ...Object.entries(options.addModuleExport)
-              .filter(([key]) => key !== 'default')
-              .map(([key, value]) => `module.exports.${key} = ${value};`),
-            `exports.default = module.exports;`,
-          ].join('\n')
-        : '',
     },
     external,
     plugins: [
@@ -176,18 +167,7 @@ module.exports = function (args) {
   }
   return [
     ...(c === 'index' ? [createDeclarationConfig(`src/${c}.ts`, 'dist')] : []),
-    createCommonJSConfig(`src/${c}.ts`, `dist/${c}`, {
-      addModuleExport: {
-        index: {
-          default: 'react',
-          create: 'create',
-          useStore: 'useStore',
-          createStore: 'vanilla.createStore',
-        },
-        vanilla: { default: 'vanilla', createStore: 'createStore' },
-        shallow: { default: 'shallow', shallow: 'shallow$1' },
-      }[c],
-    }),
+    createCommonJSConfig(`src/${c}.ts`, `dist/${c}`),
     createESMConfig(`src/${c}.ts`, `dist/esm/${c}.js`),
     createESMConfig(`src/${c}.ts`, `dist/esm/${c}.mjs`),
     createUMDConfig(`src/${c}.ts`, `dist/umd/${c}`, 'development'),

src/context.ts

@@ -37,7 +37,7 @@ type WithoutCallSignature<T> = { [K in keyof T]: T[K] }
 /**
  * @deprecated Use `createStore` and `useStore` for context usage
  */
-function createContext<S extends StoreApi<unknown>>() {
+export function createContext<S extends StoreApi<unknown>>() {
   if (import.meta.env?.MODE !== 'production') {
     console.warn(
       "[DEPRECATED] `context` will be removed in a future version. Instead use `import { createStore, useStore } from 'zustand'`. See: https://github.com/pmndrs/zustand/discussions/1180.",
@@ -98,5 +98,3 @@ function createContext<S extends StoreApi<unknown>>() {
     useStoreApi,
   }
 }
-
-export default createContext

src/index.ts

@@ -1,3 +1,2 @@
 export * from './vanilla.ts'
 export * from './react.ts'
-export { default } from './react.ts'

src/react.ts

@@ -120,15 +120,3 @@ const createImpl = <T>(createState: StateCreator<T, [], []>) => {
 
 export const create = (<T>(createState: StateCreator<T, [], []> | undefined) =>
   createState ? createImpl(createState) : createImpl) as Create
-
-/**
- * @deprecated Use `import { create } from 'zustand'`
- */
-export default ((createState: any) => {
-  if (import.meta.env?.MODE !== 'production') {
-    console.warn(
-      "[DEPRECATED] Default export is deprecated. Instead use `import { create } from 'zustand'`.",
-    )
-  }
-  return create(createState)
-}) as Create

src/shallow.ts

@@ -1,19 +1,2 @@
-import { shallow } from './vanilla/shallow.ts'
-
-// We will export this in v5 and remove default export
-// export { shallow } from './vanilla/shallow.ts'
-// export { useShallow } from './react/shallow.ts'
-
-/**
- * @deprecated Use `import { shallow } from 'zustand/shallow'`
- */
-export default ((objA, objB) => {
-  if (import.meta.env?.MODE !== 'production') {
-    console.warn(
-      "[DEPRECATED] Default export is deprecated. Instead use `import { shallow } from 'zustand/shallow'`.",
-    )
-  }
-  return shallow(objA, objB)
-}) as typeof shallow
-
-export { shallow }
+export { shallow } from './vanilla/shallow.ts'
+export { useShallow } from './react/shallow.ts'

src/vanilla.ts

@@ -105,18 +105,6 @@ const createStoreImpl: CreateStoreImpl = (createState) => {
 export const createStore = ((createState) =>
   createState ? createStoreImpl(createState) : createStoreImpl) as CreateStore
 
-/**
- * @deprecated Use `import { createStore } from 'zustand/vanilla'`
- */
-export default ((createState) => {
-  if (import.meta.env?.MODE !== 'production') {
-    console.warn(
-      "[DEPRECATED] Default export is deprecated. Instead use import { createStore } from 'zustand/vanilla'.",
-    )
-  }
-  return createStore(createState)
-}) as CreateStore
-
 // ---------------------------------------------------------
 
 /**

tests/context.test.tsx

@@ -10,7 +10,7 @@ import { render } from '@testing-library/react'
 import { afterEach, it, vi } from 'vitest'
 import { create } from 'zustand'
 import type { StoreApi } from 'zustand'
-import createContext from 'zustand/context'
+import { createContext } from 'zustand/context'
 import { subscribeWithSelector } from 'zustand/middleware'
 
 const consoleError = console.error