should get(f, Nullable) be defined?

[oxinabox]

I noted that my code include a fair bit of

maybe_res::Nullable = try_solve(...)
if isnull(res)
     # do some stuff
     # return some alternative
else
     get(maybe_res)
end

If `get(f, Nullable) was defined, like it is for dictionaries, then that would become

get(try_solve(...)) do
     # do some stuff
     # return some alternative
end

which is a bit nicer.

[nalimilan]

Nullable is on its way out: #23642. But we could define a similar get method for Some. Note that if the wrapped value cannot be nothing, you can use Union{T, Void} to replace Nullable{T}, so that you don't need to call get at all.

[vtjnash]

Some can't be null, so the situation is a bit different. I believe the current thinking is to have someone propose and develop a set of null-handling operators (with ? prefix/suffix) and in the meantime to use straightforward conditional form.

[nalimilan]

Some can't be null, so the situation is a bit different.

Yes, but #23642 includes a method get(::Void, x::Any) = x, so we could do the same here.

[KristofferC]

Moved to JuliaAttic/Nullables.jl#5