encoding/json: RawMessage base64 encoded instead of directly embedded in json stream

[ron]

Hello Gophers

I use RawMessage to precompute part of a json message.

RawMessage is a raw encoded JSON object. It implements Marshaler and Unmarshaler and can be used to delay JSON decoding or precompute a JSON encoding.

from http://golang.org/pkg/encoding/json/#RawMessage

Following code shows the problem:

package main

import "encoding/json"

type S struct{ R json.RawMessage }

func main() {

s := S{json.RawMessage([]byte(`42`))}

b, _ := json.Marshal(s)

println(string(b)) // {"R":"NDI="} Expected: {"R":42}

}

 

Is this behaviour expected?

I have made a patch to go tip to fix this, should i send it for review?

Thank you for this great language!

Ron

 

[Kyle Lemons]

You need a pointer:

http://play.golang.org/p/b8fzGMxrMC

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[ron]

Thank you Kyle  completely missed the pointer in the receiver.

[Johann Höchtl]

Am Mittwoch, 18. September 2013 01:23:25 UTC+2 schrieb Kyle Lemons:

You need a pointer:

 

I have a struct like that

struct {
  Data interface{}
}

and Data should either be copied verbatim oder base64 encoded. data always ends up in base64. Where is the problem?

http://play.golang.org/p/tApLjVyrqN

[Kevin Gillette]

So it was agreed that this doesn't constitute a bug, and thus cannot be fixed because of the Go 1 compatibility guarantee?

[Johann Höchtl]

Am Mittwoch, 26. Februar 2014 23:23:22 UTC+1 schrieb Kevin Gillette:

So it was agreed that this doesn't constitute a bug, and thus cannot be fixed because of the Go 1 compatibility guarantee?

Actually my previous post reports a new problem, not that of the OP but the formating turned out strange. I will post a new question.