fix: add context file

Author: MuxinFeng

src/Overflow.tsx

@@ -6,12 +6,13 @@ import useLayoutEffect from 'rc-util/lib/hooks/useLayoutEffect';
 import Item from './Item';
 import useEffectState, { useBatcher } from './hooks/useEffectState';
 import type { ComponentType } from './RawItem';
-import RawItem, { OverflowContext } from './RawItem';
+import RawItem from './RawItem';
+import { OverflowContext } from './context';
 
 const RESPONSIVE = 'responsive' as const;
 const INVALIDATE = 'invalidate' as const;
 
-export { OverflowContext } from './RawItem';
+export { OverflowContext } from './context';
 
 export type { ComponentType } from './RawItem';
 

src/RawItem.tsx

@@ -1,30 +1,14 @@
 import * as React from 'react';
 import classNames from 'classnames';
 import Item from './Item';
+import { OverflowContext } from './context';
 
 export type ComponentType =
   | React.ComponentType<any>
   | React.ForwardRefExoticComponent<any>
   | React.FC<any>
   | keyof React.ReactHTML;
 
-export const OverflowContext = React.createContext<{
-  prefixCls: string;
-  responsive: boolean;
-  order: number;
-  registerSize: (key: React.Key, width: number | null) => void;
-  display: boolean;
-
-  invalidate: boolean;
-
-  // Item Usage
-  item?: any;
-  itemKey?: React.Key;
-
-  // Rest Usage
-  className?: string;
-}>(null);
-
 export interface RawItemProps extends React.HTMLAttributes<any> {
   component?: ComponentType;
   children?: React.ReactNode;

src/context.ts

@@ -0,0 +1,18 @@
+import React from 'react';
+
+export const OverflowContext = React.createContext<{
+  prefixCls: string;
+  responsive: boolean;
+  order: number;
+  registerSize: (key: React.Key, width: number | null) => void;
+  display: boolean;
+
+  invalidate: boolean;
+
+  // Item Usage
+  item?: any;
+  itemKey?: React.Key;
+
+  // Rest Usage
+  className?: string;
+}>(null);