fix: add compatibility for supportNumberKey

Author: RylanBot

packages/components/form/FormItem.tsx

@@ -464,6 +464,7 @@ const FormItem = forwardRef<FormItemInstance, FormItemProps>((originalProps, ref
     fullPath,
     value: formValue,
     isUpdated: isUpdatedRef.current,
+    isFormList: false,
     getValue: () => valueRef.current,
     setValue: (newVal: any) => updateFormValue(newVal, true, true),
     setField,

packages/components/form/hooks/useInstance.tsx

@@ -1,4 +1,4 @@
-import { get, isEmpty, isFunction, merge, set } from 'lodash-es';
+import { cloneDeep, get, isEmpty, isFunction, merge, set } from 'lodash-es';
 import log from '@tdesign/common-js/log/index';
 import useConfig from '../../hooks/useConfig';
 import { calcFieldValue, findFormItem, findFormItemDeep, objectToArray, travelMapFromObject } from '../utils';
@@ -123,8 +123,9 @@ export default function useInstance(
 
     const processField = (name: string, formItemRef: any) => {
       if (!formItemRef?.current) return;
-      const value = formItemRef.current.getValue?.();
-      const fieldValue = calcFieldValue(name, value);
+      const { getValue } = formItemRef.current;
+      const value = getValue?.();
+      const fieldValue = calcFieldValue(name, value, !props.supportNumberKey);
       merge(fieldsValue, fieldValue);
     };
 
@@ -146,7 +147,7 @@ export default function useInstance(
         processField(name, formItemRef);
       }
     }
-    return fieldsValue;
+    return cloneDeep(fieldsValue);
   }
 
   // 对外方法，设置对应 formItem 的值

packages/components/form/utils/index.ts

@@ -77,20 +77,18 @@ export function objectToArray(obj: Record<string | number, any>) {
   return result;
 }
 
-export function calcFieldValue(name: NamePath, value: any) {
-  const processedValue = Array.isArray(value) ? value.slice() : value;
+export function calcFieldValue(name: NamePath, value: any, numericKeyAsIndex = true) {
+  const processedValue = Array.isArray(value) ? value : value;
   if (!Array.isArray(name)) {
     return { [name]: processedValue };
   }
-
   let result: any = processedValue;
   for (let i = name.length - 1; i >= 0; i--) {
     const key = name[i];
-    const isIndex = typeof key === 'number';
-
-    if (isIndex) {
+    const isNumberKey = typeof key === 'number' && numericKeyAsIndex;
+    if (isNumberKey) {
       const arr: any[] = [];
-      arr[key] = result; // 构建稀疏数组
+      arr[key] = result; // 稀疏数组
       result = arr;
     } else {
       result = { [key]: result };