From 0c9ca254e6e23aaf082c0da5125f3b49fa1cd354 Mon Sep 17 00:00:00 2001
From: withchao <993506633@qq.com>
Date: Fri, 13 Jan 2023 16:49:22 +0800
Subject: [PATCH] 1

---
 internal/api_to_rpc/copy.go | 42 ++++++++++++++++++++++++-------------
 1 file changed, 27 insertions(+), 15 deletions(-)

diff --git a/internal/api_to_rpc/copy.go b/internal/api_to_rpc/copy.go
index 5052afef9..f2a887bb3 100644
--- a/internal/api_to_rpc/copy.go
+++ b/internal/api_to_rpc/copy.go
@@ -6,21 +6,6 @@ import (
 	"reflect"
 )
 
-func CopyAny(from, to interface{}) {
-	t := reflect.ValueOf(to)
-	if t.Kind() == reflect.Ptr {
-		t = t.Elem()
-	}
-	if !t.CanSet() {
-		return
-	}
-	f := reflect.ValueOf(from)
-	if isBaseNil(f) {
-		return
-	}
-	copyAny(f, t)
-}
-
 func setBaseValue(from, to reflect.Value) {
 	if isBaseNil(from) {
 		return
@@ -40,6 +25,21 @@ func setBaseValue(from, to reflect.Value) {
 	to.Set(v)
 }
 
+func CopyAny(from, to interface{}) {
+	t := reflect.ValueOf(to)
+	if t.Kind() == reflect.Ptr {
+		t = t.Elem()
+	}
+	if !t.CanSet() {
+		return
+	}
+	f := reflect.ValueOf(from)
+	if isBaseNil(f) {
+		return
+	}
+	copyAny(f, t)
+}
+
 func copyAny(from, to reflect.Value) {
 	if !to.CanSet() {
 		return
@@ -47,6 +47,9 @@ func copyAny(from, to reflect.Value) {
 	if isBaseNil(from) {
 		return
 	}
+	if isBaseNil(to) {
+		to.Set(getBaseZeroValue(to.Type()))
+	}
 	btfrom := baseType(from.Type())
 	btto := baseType(to.Type())
 	if typeEq(btfrom, btto) {
@@ -118,6 +121,15 @@ func baseType(t reflect.Type) reflect.Type {
 	return t
 }
 
+func baseLayer(t reflect.Type) int {
+	var layer int
+	for t.Kind() == reflect.Ptr {
+		layer++
+		t = t.Elem()
+	}
+	return layer
+}
+
 func typeEq(t1, t2 reflect.Type) bool {
 	return t1.String() == t2.String()
 }