json ignore field on Marshal only

[bolang]

Hi all,

I know i can ignore a field with `json:"-"`.
But it will ignore in both Marshal and Unmarshal.

How to ignore the field on Marshal only?

Thanks

[C Banning]

http://play.golang.org/p/kABz76U1kq

[Klaus Post]

Here is C Bannings example without "unsafe", using an anonymous field to hide content from Marshal:

http://play.golang.org/p/-oZVK-2S_9

/Klaus

[Glen Newton]

It would be nice to be able to (safely and easily) alter these sort of annotations at runtime, like my discussion in https://groups.google.com/forum/#!searchin/golang-nuts/glen.newton/golang-nuts/56vJQuEIrqY/KOYngG2PRlEJ

-Glen