Golang C绑定类型设计

Question

type Foobar C.struct_foobar

vs.

type Foobar struct {
    foobar C.struct_foobar
}

Which one has which (dis)advantages for writing Golang bindings for a C lib?

Answer 1

The second example clearly shows a data structure not accessible from other packages.

With the first one this would be impossible.