Thanks for you reply, I got it done: https://play.golang.org/p/oOEELLyaVv This is how I did it, pass *interface{} to gob.Encode, not interface{} the same with gob.Decode, then get the type info from the decoded value interface{}
在 2017年1月18日星期三 UTC+8下午10:51:51，Jordan Krage写道： > > Actually, it looks like the int/int8 distinction doesn't matter for gob. > >> There is no int8, int16 etc. discrimination in the gob format; there are >> only signed and unsigned integers. >> > https://golang.org/pkg/encoding/gob/ > > On Wednesday, January 18, 2017 at 8:43:27 AM UTC-6, Jordan Krage wrote: >> >> How about a compromise with denser type info? (could consider an int8 as >> well) >> >> type infoType int >> >> const ( >> firstType infoType = iota >> secondType >> ... >> ) >> >> type Info struct{ >> infoType >> IData interface{} >> } >> >> >> On Wednesday, January 18, 2017 at 12:07:49 AM UTC-6, casp...@gmail.com >> wrote: >>> >>> First thanks for you reply. >>> Because in fact, I have about more than 10 different struct types (maybe >>> more and more), your suggest is good, this is better >>> type Info struct{ >>> typeStr string // store the type info to decode IData >>> IData interface{} >>> } >>> >>> But I don't like to send the typeInfo through rpc call（I'm using gob to >>> do rpc call），maybe there's a better way to do it, just I haven't found it。 >>> >>> 在 2017年1月18日星期三 UTC+8上午11:12:05，Felipe Spinolo写道： >>>> >>>> Why not just create a wrapper struct? Something like: >>>> >>>> type Mixed struct{ >>>> A *A >>>> B *B >>>> } >>>> >>>> And then just encode/decode that? >>>> >>>> On Tuesday, January 17, 2017 at 1:16:37 PM UTC-8, casp...@gmail.com >>>> wrote: >>>>> >>>>> I got two struct types encoded into bytes by gob, I want to decode the >>>>> bytes into a specific struct, is it possible without try all struct >>>>> types(maybe 3 or more struct types)? >>>>> >>>>> I want to decode bytes without specify which elem in mixedBytes is >>>>> struct A, and which is struct B. >>>>> This is the playground url: https://play.golang.org/p/F0Wp5eWdGu >>>>> >>>>> Is is possible to implement it by a map or something like this? >>>>> >>>>> var typesMap = map[string]reflect.Value{ >>>>> "A": reflect.ValueOf(A{}), >>>>> "B": reflect.ValueOf(B{}), >>>>> } >>>>> >>>>> >>>>> >>>>> >>>>> -- 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+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
