Sum types and default initialization can make maintenance difficult.

[gchumillas]

I think default initialization should not be allowed in sum types, as it leads to unpredictable behavior, making maintenance difficult. For exampe:

type MyType = string | int
println(MyType{})

// outputs MyType('')

However, since I am a perfectionist, I will order the types alphabetically, and we obtain a different result:

type MyType = int | string // sorted alphabetically
println(MyType{})

// outputs MyType(0)

Thank you! I'm in love with this language :)