Golang gob: 接口类型未注册:

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英文:

Golang gob: type not registered for interface:

问题

所以我有一个类型String,它是string的别名定义:

type String string

然后我对它应用以下方法:

func (s String) String() string {
    str := "'" + s + "'"
    return string(str)
}

然后我尝试通过rpc发送一个包含String的结构体,并得到以下错误:

gob: type not registered for interface: dbUtils.String

我没有定义任何同名的接口,为什么gob认为这是一个接口?

我用类似的类型遇到了同样的错误,但通过gob.Register(otherType{})解决了它。
这对于String不起作用,可能是因为string不是一个接口。我对Go有点陌生,请解释一下发生了什么。

英文:

So I have a type String that is an alias of string defined:

type String string

I then apply the following method to it:

func (s String) String() string {
    str := "'" + s + "'"
    return string(str)
}

I then try to send a struct containing a String over rpc and get the following error:

gob: type not registered for interface: dbUtils.String

I do not define any interfaces with the same name, so why does gob think this is an interface?

I got the same error with a similar type but solved it with gob.Register(otherType{}).
This does not work with String, presumably because string is not an interface. I am somewhat new to go so please explain what is happening.

答案1

得分: 2

它应该适用于String,但请确保您传递的是String()对象的实例,而不是标识符String。所以使用gob.Register(String(""))

英文:

It should work with String, but make sure you're passing an instance of a String() object, not the identifier String. So use gob.Register(String(""))

答案2

得分: 2

我认为这可能是你试图实现的解决方案:

http://play.golang.org/p/9OrSKfcCAQ

请注意,你必须明确声明变量为 'String' 类型。如果你使用 ":=" 赋值,它会假设它是一个字符串并忽略函数。

英文:

I think this may be a solution to what you're trying to accomplish:

http://play.golang.org/p/9OrSKfcCAQ

Note that you have to explicitly declare the variable as a 'String'. If you use the ":=" assignment will assume it is a string and ignore the function.

huangapple
  • 本文由 发表于 2013年10月10日 01:07:00
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