or casting, which is a selective bit of loss of type safety (& a speed hit), but is what the std library linked list impl actually uses, and is what pre-generics java & objc used forever.

it ain't great, but it ain't a disaster, either.

It's 1990s coding in 2016. We have a better way, and even go implements it for certain special types.

i'm not saying it's great, but it's the most practical thing in most cases in go, & it was missing from your list.

whether or not go would be better with generics is still an open question imo.