feat: add useParentField

src/composition/use-parent-field.ts

@@ -0,0 +1,17 @@
+import { watch, inject, WatchSource, getCurrentInstance } from 'vue';
+import { FIELD_KEY } from '../field';
+
+export function useParentField(watchSource: WatchSource) {
+  const field = inject(FIELD_KEY) as any;
+
+  if (field && !field.children) {
+    field.children = getCurrentInstance()!.proxy;
+
+    watch(watchSource, () => {
+      if (field) {
+        field.resetValidation();
+        field.validateWithTrigger('onChange');
+      }
+    });
+  }
+}