[question] Is there a way to get msg from errors.Wrap(code, msg)?

[allencloud]

Hi, I have a question for the project.

Now there is a line of code :

func A() error{
     return errors.Wrap(code, msg)
}

Then I have a caller err := A(), so can I use the returned err to get msg?

Thanks in advance.

[davecheney]

Not really. This was a deliberate choice to avoid using the string form of an error to transmit context between locations in the call stack

On 2 Aug 2018, at 02:38, Allen Sun [email protected] wrote:

Hi, I have a question for the project.

Now there is a line of code :

func A() error{ return errors.Wrap(code, msg) } Then I have a caller err := A(), so can I use the returned err to get msg?

Thanks in advance.

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[gumingqi]

I want to set error code,and use it in the caller too