test.c

typedef NU8 tyEnum_EnumKind__HznZsN6fMsJhxEwk9c3lM7A;
struct NimStrPayload {
NI cap;
NIM_CHAR data[SEQ_DECL_SIZE];
};
struct NimStringV2 {
NI len;
NimStrPayload* p;
};
struct tyObject_Test__u05pFSL5Fo2sfuv1oH9btJw {
tyEnum_EnumKind__HznZsN6fMsJhxEwk9c3lM7A kind;
union{
NimStringV2 data;
NI test;
NF ok;
};
};

test.nim

type
  EnumKind = enum
    Tata, Lol,Fa

  Test* = object
    case kind*: EnumKind
    of Tata: data: string
    of Lol: test: int
    of Fa: ok: float

let a = Test(kind: Tata, data: "hello")