`to_dict` does not contain default values

[rejuvyesh]

As the title says:

julia> @option mutable struct OptA; a::Int=1; end

julia> @option mutable struct OptB; b::OptA=OptA(); end

julia> opt = OptB();

julia> to_dict(opt)
OrderedCollections.OrderedDict{String,Any}()

Because of this reason, there is no easy way to just dump the default values for a config.

[Roger-luo]

Hi this is intentional, I don't see any use case that requires the default value to exists in the configuration file/dict, leaving a field empty means using the default value already.

If you want to do the reflection of default values, consider field_defaults or field_default function for default value reflection.

[Roger-luo]

I‘m closing this, feel free to open other issues if this is still a problem.