add hw2

node_modules/@react-aria/utils/dist/useObjectRef.module.js

@@ -0,0 +1,53 @@
+import {useRef as $gbmns$useRef, useCallback as $gbmns$useCallback, useMemo as $gbmns$useMemo} from "react";
+
+/*
+ * Copyright 2021 Adobe. All rights reserved.
+ * This file is licensed to you under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License. You may obtain a copy
+ * of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under
+ * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
+ * OF ANY KIND, either express or implied. See the License for the specific language
+ * governing permissions and limitations under the License.
+ */ 
+function $df56164dff5785e2$export$4338b53315abf666(ref) {
+    const objRef = (0, $gbmns$useRef)(null);
+    const cleanupRef = (0, $gbmns$useRef)(undefined);
+    const refEffect = (0, $gbmns$useCallback)((instance)=>{
+        if (typeof ref === 'function') {
+            const refCallback = ref;
+            const refCleanup = refCallback(instance);
+            return ()=>{
+                if (typeof refCleanup === 'function') refCleanup();
+                else refCallback(null);
+            };
+        } else if (ref) {
+            ref.current = instance;
+            return ()=>{
+                ref.current = null;
+            };
+        }
+    }, [
+        ref
+    ]);
+    return (0, $gbmns$useMemo)(()=>({
+            get current () {
+                return objRef.current;
+            },
+            set current (value){
+                objRef.current = value;
+                if (cleanupRef.current) {
+                    cleanupRef.current();
+                    cleanupRef.current = undefined;
+                }
+                if (value != null) cleanupRef.current = refEffect(value);
+            }
+        }), [
+        refEffect
+    ]);
+}
+
+
+export {$df56164dff5785e2$export$4338b53315abf666 as useObjectRef};
+//# sourceMappingURL=useObjectRef.module.js.map