支持传入的跟结构就是数组

builder_test.go

@@ -223,3 +223,45 @@ func TestExtendStruct(t *testing.T) {
 		So(instance.GetField("Age").GetTag(), ShouldEqual, `json:"company_age"`)
 	})
 }
+
+func TestArrayRoot(t *testing.T) {
+	Convey("嵌套结构体带多级数组", t, func() {
+		data := []byte(`
+[[[{
+			"age": 123,
+			"name": "example",
+			"double": 123.45,
+			"bool": true,
+			"slice": [1, 2, 3]
+		}]]]
+		`)
+		instance := NewStruct(map[string]string{
+			"test_tag_map": `json:"tag_map"`,
+		}).
+			AddField("[].[].[].age", "", 0, `json:"age"`, false).
+			AddField("[].[].[].name", "", "", `json:"name"`, false).
+			Build()
+		val := instance.New()
+		err := json.Unmarshal(data, &val)
+		So(err, ShouldBeNil)
+		reflectType := reflect.TypeOf(val)
+		// 需要是数组类型
+		So(reflectType.Kind(), ShouldEqual, reflect.Ptr)
+		So(reflectType.Elem().Kind(), ShouldEqual, reflect.Slice)
+		// 验证数据
+		// 数据序列化成功
+		targetByte, targetErr := json.Marshal(val)
+		So(targetErr, ShouldBeNil)
+		// 数据转map成功
+		var res [][][]any
+		targetUnmarshalErr := json.Unmarshal(targetByte, &res)
+		So(targetUnmarshalErr, ShouldBeNil)
+		So(len(res), ShouldEqual, 1)
+		userMap, ok := res[0][0][0].(map[string]any)
+		So(ok, ShouldBeTrue)
+		So(len(userMap), ShouldEqual, 2)
+		So(userMap["age"], ShouldEqual, float64(123))
+		So(userMap["name"], ShouldEqual, "example")
+		So(userMap["double"], ShouldBeNil)
+	})
+}