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const Enum = enum(u32) { a, b };
const TaggedUnion = union(Enum) {
b: []const u8,
a: []const u8,
};
pub export fn entry() void {
const result = TaggedUnion{ .b = "b" };
_ = result.b;
_ = result.a;
}
pub export fn entry1() void {
const result = TaggedUnion{ .b = "b" };
_ = &result.b;
_ = &result.a;
}
// error
// backend=stage2
// target=native
//
// :9:15: error: access of union field 'a' while field 'b' is active
// :2:21: note: union declared here
// :14:16: error: access of union field 'a' while field 'b' is active
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