1const Error = error{
 2    One,
 3    Two,
 4    Three,
 5    Four,
 6};
 7fn f(n: Error!i32) i32 {
 8    if (n) |x| x else |e| switch (e) {
 9        error.One => 1,
10        error.Two => 2,
11        error.Three => 3,
12    }
13}
14fn h(n: Error!i32) i32 {
15    n catch |e| switch (e) {
16        error.One => 1,
17        error.Two => 2,
18        error.Three => 3,
19    };
20}
21
22export fn entry() usize {
23    return @sizeOf(@TypeOf(&f)) + @sizeOf(@TypeOf(&h));
24}
25
26// error
27//
28// :8:27: error: switch must handle all possibilities
29// :8:27: note: unhandled error value: 'error.Four'
30// :15:17: error: switch must handle all possibilities
31// :15:17: note: unhandled error value: 'error.Four'