Open Radar

 
Summary:
In the header’s definition, the n_un field is a union, which I take it is unsupported in Swift. This union only contains a 32-bit integer, however, so I think it should be representable as a struct:

struct nlist_64 {
    struct n_un {
        let n_strx: Int32
    }
    …
}


Steps to Reproduce:
1. Look at how Swift imports the nlist_64 struct from mach-o/nlist.h


Expected Results:
I expected to see a n_un field with a n_strx field within it, or at least to see n_strx at the top level (which would also presumably be semantically valid?).


Actual Results:
It’s just omitted.


Regression:
N/A


Notes:
Only workaround I know of is to drop down to C.