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frontend/node_modules/rc-select/es/hooks/useOptions.js

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+import * as React from 'react';
+import { convertChildrenToData } from "../utils/legacyUtil";
+
+/**
+ * Parse `children` to `options` if `options` is not provided.
+ * Then flatten the `options`.
+ */
+var useOptions = function useOptions(options, children, fieldNames, optionFilterProp, optionLabelProp) {
+  return React.useMemo(function () {
+    var mergedOptions = options;
+    var childrenAsData = !options;
+    if (childrenAsData) {
+      mergedOptions = convertChildrenToData(children);
+    }
+    var valueOptions = new Map();
+    var labelOptions = new Map();
+    var setLabelOptions = function setLabelOptions(labelOptionsMap, option, key) {
+      if (key && typeof key === 'string') {
+        labelOptionsMap.set(option[key], option);
+      }
+    };
+    var dig = function dig(optionList) {
+      var isChildren = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+      // for loop to speed up collection speed
+      for (var i = 0; i < optionList.length; i += 1) {
+        var option = optionList[i];
+        if (!option[fieldNames.options] || isChildren) {
+          valueOptions.set(option[fieldNames.value], option);
+          setLabelOptions(labelOptions, option, fieldNames.label);
+          // https://github.com/ant-design/ant-design/issues/35304
+          setLabelOptions(labelOptions, option, optionFilterProp);
+          setLabelOptions(labelOptions, option, optionLabelProp);
+        } else {
+          dig(option[fieldNames.options], true);
+        }
+      }
+    };
+    dig(mergedOptions);
+    return {
+      options: mergedOptions,
+      valueOptions: valueOptions,
+      labelOptions: labelOptions
+    };
+  }, [options, children, fieldNames, optionFilterProp, optionLabelProp]);
+};
+export default useOptions;