feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/pkg/errorx/internal/msg.go

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package internal
+
+import (
+	"fmt"
+)
+
+type withMessage struct {
+	cause error
+	msg   string
+}
+
+func (w *withMessage) Unwrap() error {
+	return w.cause
+}
+
+func (w *withMessage) Error() string {
+	return fmt.Sprintf("%s\ncause=%s", w.msg, w.cause.Error())
+}
+
+func wrapf(err error, format string, args ...interface{}) error {
+	if err == nil {
+		return nil
+	}
+	err = &withMessage{
+		cause: err,
+		msg:   fmt.Sprintf(format, args...),
+	}
+
+	return err
+}
+
+func Wrapf(err error, format string, args ...interface{}) error {
+	return withStackTraceIfNotExists(wrapf(err, format, args...))
+}