put enableES5() back to index.ts

Author: Žiga Ajdnik

packages/toolkit/src/createReducer.ts

@@ -1,5 +1,5 @@
 import type { Draft } from 'immer'
-import createNextState, { isDraft, isDraftable, enableES5 } from 'immer'
+import createNextState, { isDraft, isDraftable } from 'immer'
 import type { AnyAction, Action, Reducer } from 'redux'
 import type { ActionReducerMapBuilder } from './mapBuilders'
 import { executeReducerBuilderCallback } from './mapBuilders'
@@ -197,12 +197,6 @@ export function createReducer<S>(
   actionMatchers: ReadonlyActionMatcherDescriptionCollection<S> = [],
   defaultCaseReducer?: CaseReducer<S>
 ): Reducer<S> {
-  // We deliberately enable Immer's ES5 support, on the grounds that
-  // we assume RTK will be used with React Native and other Proxy-less
-  // environments.  In addition, that's how Immer 4 behaved, and since
-  // we want to ship this in an RTK minor, we should keep the same behavior.
-  enableES5()
-
   let [actionsMap, finalActionMatchers, finalDefaultCaseReducer] =
     typeof mapOrBuilderCallback === 'function'
       ? executeReducerBuilderCallback(mapOrBuilderCallback)

packages/toolkit/src/index.ts

@@ -1,3 +1,4 @@
+import { enableES5 } from 'immer'
 export * from 'redux'
 export {
   default as createNextState,
@@ -17,6 +18,12 @@ export type {
 export { createDraftSafeSelector } from './createDraftSafeSelector'
 export type { ThunkAction, ThunkDispatch } from 'redux-thunk'
 
+  // We deliberately enable Immer's ES5 support, on the grounds that
+  // we assume RTK will be used with React Native and other Proxy-less
+  // environments.  In addition, that's how Immer 4 behaved, and since
+  // we want to ship this in an RTK minor, we should keep the same behavior.
+enableES5();
+
 export {
   // js
   configureStore,