1const std = @import("std");
 2
 3pub fn panic(message: []const u8, stack_trace: ?*std.builtin.StackTrace, ra: ?usize) noreturn {
 4    _ = stack_trace;
 5    _ = ra;
 6    if (std.mem.eql(u8, message, "attempt to use null value")) {
 7        std.process.exit(0);
 8    }
 9    std.process.exit(1);
10}
11
12pub fn main() !void {
13    foo() catch |err| switch (err) {};
14    return error.TestFailed;
15}
16var x: ?error{} = null;
17fn foo() !void {
18    return x.?;
19}
20// run
21// backend=selfhosted,llvm
22// target=x86_64-linux,aarch64-linux