Readonly/Writeonly fields

[f3oall]

Can I intercept Marshalling/Unmarshalling to skip some fields?

The desired goal is to have one struct with one set of fields, which have a different behavior during serialization/deserialization, so json:"-" is not an option. By using ast.Visitor, I should either implement it for each struct, which is a lot or use reflect, which will probably drop the performance significantly.

It would be nice to have an interface that can skip Serialization/Deserialization if implemented.

// Naive example
type Skipper interface {
  Skip(key string) bool
}

Or maybe there are any other better ways to do what I want?

Thanks for your hard work on the project btw, it's awesome!