Thanks a lot for the thoughts everyone, I will take all your suggestions under advisement.
Jan: Thanks for the tips for performance, however with this project I'm not particularly trying to squeeze as much performance as possible, and I prefer the "safety" of the otherway. I mean safe in that, with your suggestion you would have the "nonsense" value still accessible, even if I really shouldn't touch it because the bool is "false". Maybe it's me being lazy, but I much prefer the compiler not letting me mess with something that I shouldn't (I'm very jealous of Rust's "container" Mutexes). On Thursday, June 17, 2021 at 1:12:39 PM UTC+1 Brian Candler wrote: > On Thursday, 17 June 2021 at 09:02:48 UTC+1 axel.wa...@googlemail.com > wrote: > >> >>> How would you go about modelling this type in Go? >>> >> >> Either using an interface, or by having two pointer-fields and only >> setting one. >> > > I'd just add for clarity: in Go an interface value is also something > inherently "nillable", so lets you test for the presence/absence of a > value, like a pointer does. > > If you do this, then you can switch on the type of the value - so you > don't need to keep a separate field for "type". But probably the most > persuasive argument is if your actions share some common behaviour, such as > "Perform this action" or "Describe this action". Those sit very nicely as > methods on the interface. > > A benefit of pointers is that it's very easy to serialize and deserialize > as an optional field (to JSON, say), without any extra work. You can also > do it with interfaces, and you get more control, but you need to do some > plumbing. This looks like a nice overview: > http://gregtrowbridge.com/golang-json-serialization-with-interfaces/ > -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/golang-nuts/44bd58eb-205b-40f2-963c-028d8e55a81fn%40googlegroups.com.
