why gob encode/decode has no ignore field

[guo tie]

json encode/decode can use `json:"-"` to ignore some field, why gob encode/decode do not have this function?

[Volker Dobler]

Gob is used to serialize and deserialize whole Go objects. Dropping fields while serializing makes no sense for this use case.

V.

[Matt Harden]

On Wed, Apr 2, 2014 at 11:49 PM, Volker Dobler <dr.volke...@gmail.com> wrote:

Gob is used to serialize and deserialize whole Go objects. Dropping fields while serializing makes no sense for this use case.

 

I disagree with that. Some objects have fields that are volatile and make no sense to (de)serialize. Gob does not use struct tags, though, and I don't think it should start doing so just to support field hiding. If you don't want a field to be (de)serialized, either don't export it, or implement Gob{En,De}code yourself.

[Dan Kortschak]

Or copy the struct and zero the relevant fields in the copy before encoding.