After upgraded to v2.5.2, defined as "*", but it should be named with "Res" suffix like "XxxRes"

[mason51]

1. What version of Go and system type/arch are you using?

1.20.4

2. What version of GoFrame are you using?

v2.5.2

3. Can this issue be re-produced with the latest release?

Yes

4. What did you do?

type MenuListReq struct {
	g.Meta `path:"/user/menu-list" method:"get" summary:"菜单列表" tags:"用户"`
}
type MenuListRes struct {
	Title    string         `json:"title"  dc:"菜单名称"`
	Path     string         `json:"path"  dc:"菜单地址"`
	Children []MenuListData `json:"children"`
}

func (c *cUser) MenuList(ctx context.Context, req *user.MenuListReq) (res *[]user.MenuListRes, err error) {
	return
}

5. What did you expect to see?

6. What did you see instead?

在 v2.5.1 的时候, res []user.MenuListRes 是可以用的, 但升级到 v2.5.2, 就会报错.
invalid struct naming for response: defined as "", but it should be named with "Res" suffix like "XxxRes"

同样, 当前最新版的 v2.5.3 也会报错.

如果, 我把 res *[]user.MenuListRes 改成 res *user.MenuListRes, 也就是不用数组, 就不报错.

所以, 请问这是 gf 的 bug? 还是后续不能再用数组?

[spenice]

目测是支持泛型了，就不能用 [] 了
控制器只允许两种 "func(*ghttp.Request)" or "func(context.Context, *BizReq)(*BizRes, error)" is required
源码上 变量 是通过 反射获取 in 的参数个数 和参数类型来判断的
返回类型 是字符串判断你的请求是否为 “xxxReq” 和 “xxxRes”
支持泛型后，会将泛型部分移除掉，即保留中括号左边的字符串，导致获取不到你的真正的返回类型
你可以试下，res []user.MenuListRes 会抛出 defined as ""
res []*user.MenuListRes 会抛出 defined as ""

下面是部分源码

// trimGeneric removes type definitions string from response type name if generic
func trimGeneric(structName string) string {
	var (
		leftBraceIndex  = strings.LastIndex(structName, "[")
		rightBraceIndex = strings.LastIndex(structName, "]")
	)
	if leftBraceIndex == -1 && rightBraceIndex == -1 {
		// no generic type usage.
		return structName
	}
	return structName[:leftBraceIndex]
}

[mason51]

如果不能用[]了, 后续想升级gf最新版本, 好几十个接口要改

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---

If [] cannot be used anymore, I want to upgrade to the latest version of gf later. Dozens of interfaces need to be changed.

[spenice]

您好，我已经收到了你的来信

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---

Hello, I have received your letter

[spenice]

如果不能用[]了, 后续想升级gf最新版本, 好几十个接口要改

将你的 返回类型 再包装成一个新的类型

你原来的 res []user.MenuListRes 包装成
type UserMenuListRes []user.MenuListRes
然后将新的 UserMenuListRes 做你的返回值类型

或者你所有的 返回 xxxRes 都使用一个，然后将 responseHandler 跟着修改
下面是一个小demo

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---

If [] cannot be used anymore, and I want to upgrade to the latest version of gf later, dozens of interfaces need to be changed.

Repackage your return type into a new type

Your original res []user.MenuListRes is wrapped into
type UserMenuListRes []user.MenuListRes
Then make the new UserMenuListRes your return value type

Or use one for all your returned xxxRes, and then modify the responseHandler accordingly
Below is a small demo

[gqcn]

如果不能用[]了, 后续想升级gf最新版本, 好几十个接口要改

将你的 返回类型 再包装成一个新的类型

你原来的 res []user.MenuListRes 包装成 type UserMenuListRes []user.MenuListRes 然后将新的 UserMenuListRes 做你的返回值类型

或者你所有的 返回 xxxRes 都使用一个，然后将 responseHandler 跟着修改 下面是一个小demo

@mason51 对，参考这个来修改吧，其实使用正则来做批量替换也可以实现的。

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---

If [] cannot be used anymore, and I want to upgrade to the latest version of gf later, dozens of interfaces need to be changed.

Rewrap your return type into a new type

Wrap your original res []user.MenuListRes into type UserMenuListRes []user.MenuListRes and then use the new UserMenuListRes as your return value type

Or you use one for all returned xxxRes, and then modify the responseHandler accordingly. The following is a small demo! [Snipaste_2023-09-12_13-38-50](https://user-images.githubusercontent.com/40162682/267221609- 04247cce-2b4e-4510-b491-346e4f99607a.png)

@mason51 Yes, refer to this to modify it. In fact, batch replacement can also be achieved using regular expressions.