From aaf21a2f9167f9239b0c4342c0cca3727d508a25 Mon Sep 17 00:00:00 2001
From: Sydonian <794346190@qq.com>
Date: Fri, 17 Jan 2025 16:36:30 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A2=9E=E5=8A=A0=E6=B3=A8=E9=87=8A=E6=8F=90?=
 =?UTF-8?q?=E7=A4=BAjson=E5=BA=93=E7=9A=84BUG?=
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---
 utils/serder/serder_test.go   | 16 ++++++++++++++++
 utils/serder/union_handler.go |  2 +-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/utils/serder/serder_test.go b/utils/serder/serder_test.go
index 4914531..bdb3101 100644
--- a/utils/serder/serder_test.go
+++ b/utils/serder/serder_test.go
@@ -648,4 +648,20 @@ func Test_ObjectToJSON2(t *testing.T) {
 		So(err, ShouldBeNil)
 		So(ret, ShouldResemble, val)
 	})
+
+}
+
+func Test_ObjectToJSON3(t *testing.T) {
+	Convey("反序列化TypeUnion时，JSON中对应字段类型不对", t, func() {
+		type Base interface{}
+
+		union := types.NewTypeUnion[Base](&St1{}, &St2{})
+		UseTypeUnionInternallyTagged(&union, "Type")
+
+		v, err := JSONToObjectEx[[]Base]([]byte("[{\"Type\":\"St2\", \"Val\":[]}]"))
+		t.Logf("err: %v", err)
+		t.Logf("v: %+v", v[0])
+		So(err, ShouldNotBeNil)
+		// So(ret, ShouldResemble, val)
+	})
 }
diff --git a/utils/serder/union_handler.go b/utils/serder/union_handler.go
index ce4ac3e..cd98a02 100644
--- a/utils/serder/union_handler.go
+++ b/utils/serder/union_handler.go
@@ -254,7 +254,7 @@ func (e *InternallyTaggedDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iter
 	// 否则New出来的是会是**T，这将导致后续的反序列化出问题
 	if typ.Kind() == reflect.Pointer {
 		val := reflect.New(typ.Elem())
-		raw.ToVal(val.Interface())
+		raw.ToVal(val.Interface()) // TODO 使用的库丢失了ToVal期间的错误信息，考虑换个库
 
 		retVal := reflect.NewAt(e.union.Union.UnionType, ptr)
 		retVal.Elem().Set(val)