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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Signed-off-by: 叶枫 <7971419+crazyair@users.noreply.github.com>

components/_util/__tests__/type.test.tsx

@@ -99,5 +99,12 @@ describe('type', () => {
       const bamboo: BambooType = 123;
       expect(bamboo).toBeTruthy();
     });
+    it('Type is return', () => {
+      interface Props {
+        classNames?: { root?: string } | ((props: any) => { root?: string });
+      }
+      const result: GetProp<Props, 'classNames', 'Return'> = { root: '123' };
+      expect(result).toBeTruthy();
+    });
   });
 });

components/_util/type.ts

@@ -55,7 +55,12 @@ export type GetProps<T extends React.ComponentType<any> | object> =
 export type GetProp<
   T extends React.ComponentType<any> | object,
   PropName extends keyof GetProps<T>,
-> = NonNullable<GetProps<T>[PropName]>;
+  Type extends 'Default' | 'Return' = 'Default',
+> = Type extends 'Default'
+  ? NonNullable<GetProps<T>[PropName]>
+  : Type extends 'Return'
+    ? ReturnType<Extract<NonNullable<GetProps<T>[PropName]>, (...args: any[]) => unknown>>
+    : never;
 
 type ReactRefComponent<Props extends { ref?: React.Ref<any> | string }> = (
   props: Props,