[pickers] Do not require date-fns in @mui/x-date-pickers-pro

packages/x-date-pickers-pro/src/DateRangeField/DateRangeField.interfaces.ts

@@ -1,5 +1,6 @@
 import { TextFieldProps } from '@mui/material/TextField';
-import { UseFieldProps, FieldSection, DefaultizedProps } from '@mui/x-date-pickers/internals';
+import { DefaultizedProps } from '@mui/x-date-pickers/internals';
+import { UseFieldProps, FieldSection } from '@mui/x-date-pickers/internals-fields';
 import { DateRange } from '../internal/models';
 import {
   DateRangeValidationError,

packages/x-date-pickers-pro/src/DateRangeField/useDateRangeField.ts

@@ -1,13 +1,15 @@
+import {
+  useUtils,
+  useDefaultDates,
+  parseNonNullablePickerDate,
+} from '@mui/x-date-pickers/internals';
 import {
   useField,
   FieldValueManager,
   splitFormatIntoSections,
   addPositionPropertiesToSections,
   createDateStrFromSections,
-  useUtils,
-  useDefaultDates,
-  parseNonNullablePickerDate,
-} from '@mui/x-date-pickers/internals';
+} from '@mui/x-date-pickers/internals-fields';
 import {
   DateRangeFieldSection,
   UseDateRangeFieldDefaultizedProps,

packages/x-date-pickers-pro/src/MultiInputDateRangeField/useMultiInputDateRangeField.ts

@@ -4,7 +4,8 @@ import {
   unstable_useDateField as useDateField,
   UseDateFieldProps,
 } from '@mui/x-date-pickers/DateField';
-import { useUtils, useValidation, UseFieldResponse } from '@mui/x-date-pickers/internals';
+import { useUtils, useValidation } from '@mui/x-date-pickers/internals';
+import { UseFieldResponse } from '@mui/x-date-pickers/internals-fields';
 import { UseMultiInputDateRangeFieldProps } from './MultiInputDateRangeField.interfaces';
 import { DateRange } from '../internal/models';
 import { validateDateRange } from '../internal/hooks/validation/useDateRangeValidation';

packages/x-date-pickers/src/internals-fields/index.ts

@@ -0,0 +1,15 @@
+// We don't add those exports to the regular `@mui/x-date-pickers/internals`,
+// Because they rely on date-fns, which is not used by all applications.
+export {
+  useField,
+  createDateStrFromSections,
+  addPositionPropertiesToSections,
+  splitFormatIntoSections,
+} from '../internals/hooks/useField';
+export type {
+  UseFieldProps,
+  UseFieldParams,
+  UseFieldResponse,
+  FieldValueManager,
+  FieldSection,
+} from '../internals/hooks/useField';

packages/x-date-pickers/src/internals/index.ts

@@ -32,19 +32,6 @@ export type { WrapperVariant } from './components/wrappers/WrapperVariantContext
 
 export { DAY_MARGIN } from './constants/dimensions';
 
-export {
-  useField,
-  createDateStrFromSections,
-  addPositionPropertiesToSections,
-  splitFormatIntoSections,
-} from './hooks/useField';
-export type {
-  UseFieldProps,
-  UseFieldParams,
-  UseFieldResponse,
-  FieldValueManager,
-  FieldSection,
-} from './hooks/useField';
 export { useMaskedInput } from './hooks/useMaskedInput';
 export { usePickerState } from './hooks/usePickerState';
 export type { PickerStateProps, PickerStatePickerProps } from './hooks/usePickerState';