[go-nuts] Gob decode map string interface

I found this of rob moaning that he shouldn't have included support for
interface{} in Gob but no real answers:

https://groups.google.com/forum/#!topic/golang-dev/_t4pqoeuflE

--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to golang-nuts+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

On Sunday, 12 October 2014 01:00:41 UTC+2, Rob 'Commander' Pike wrote:

You don't say anything about the problem beyond "it doesn't work".
Without a full executable example others can try to see the issue, you
can't expect much help.

Also, again and strongly, check your error returns.

Since map[string]interface{} is not a named type, there is no need to
register it.

-rob


On Sat, Oct 11, 2014 at 3:08 PM, Alex Howard <3du...@gmail.com
<javascript:>> wrote:

On Sun, Oct 12, 2014 at 1:31 AM, Alex Howard wrote:

I'm working with a large program and shouldn't need to write a whole new
not-working example program for someone to explain how to encode/decode
map[string]interface{} with gob.

On Sat, Oct 11, 2014 at 9:33 PM, Rob Pike wrote:
I'm sorry, yes, the type must be registered. I was, as is often the
case, confused by the ways people misuse empty interfaces.

The other point still stands: Without a complete working example
there's little help to offer.

-rob

Can anyone explain why this code is not working? When decoding/encoding I
cant recover my object which has fields of map[string]interface{}

I have tried to register the map[string]interface{} to make it work using
gob.Register(map[string]interface{}{}).

These functions are in an external package if that helps.

Thanks,

func Encode_gob(logs chan string, input interface{}) (bool, []byte) {
if input == nil { logs<-"TOOLS/GOB/ENCODE: INPUT INTERFACE IS NIL"; return
false, nil }
encoded := new(bytes.Buffer)
gob.Register(map[string]interface{}{})
encCache := gob.NewEncoder(encoded)
encCache.Encode(input)
return true, encoded.Bytes()
}

func Decode_gob(logs chan string, input []byte, data interface{}) bool {
dCache := bytes.NewBuffer(input)
gob.Register(map[string]interface{}{})
decCache := gob.NewDecoder(dCache)
e := decCache.Decode(data)
if e != nil || data == nil { logs<-"TOOLS/GOB/DECODE: "+e.Error(); return
false }
return true
}

--
You received this message because you are subscribed to the Google Groups
"golang-nuts" group.
To unsubscribe from this group and stop receiving emails from it, send an
email to golang-nuts+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.