I've never really been at peace with using zero values to indicate that a struct field is absent. I use nil (fieldA *int, fieldB *string, etc.) if I have to (I'm looking at you, JSON), but in most other cases the "nil" approach feels dangerous (panics) and magical.
Does anyone have an approach they feel comfortable with? At various points I've thought about: - bool guard (HasField bool, Field int) - pointer (Field *int) - zero value (Field int, absent if 0) - magic value (Field int, absent if MaxInt) - private values (func Field() (int, bool)) - enum guard (Mode StructMode, Field int) - generic optional (Field Optional[int]) I prefer idiomatic approaches but they are all error prone because checking the guard is not required programmatically. I generally use the bool guard and sometimes pointer. I feel like I should be more comfortable with the zero value but it doesn't always work. What say you, oh Go Wizards? -- Salvatore smile. -- 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/82a3c981-8c19-49d5-96e1-865747e7946fn%40googlegroups.com.
