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frontend/node_modules/rc-cascader/es/hooks/useSearchConfig.js

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+import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
+import _typeof from "@babel/runtime/helpers/esm/typeof";
+import warning from "rc-util/es/warning";
+import * as React from 'react';
+// Convert `showSearch` to unique config
+export default function useSearchConfig(showSearch) {
+  return React.useMemo(function () {
+    if (!showSearch) {
+      return [false, {}];
+    }
+    var searchConfig = {
+      matchInputWidth: true,
+      limit: 50
+    };
+    if (showSearch && _typeof(showSearch) === 'object') {
+      searchConfig = _objectSpread(_objectSpread({}, searchConfig), showSearch);
+    }
+    if (searchConfig.limit <= 0) {
+      searchConfig.limit = false;
+      if (process.env.NODE_ENV !== 'production') {
+        warning(false, "'limit' of showSearch should be positive number or false.");
+      }
+    }
+    return [true, searchConfig];
+  }, [showSearch]);
+}