err.zig

pub fn main() anyerror!void {
    @import("std").log.info("x={}", .{try foo(23)});
}

fn foo(x: usize) !?Union {
    if (x > 5) return Union.x;
    return bar();
}

fn bar() !?Union {
    return null;
}

const Enum = enum { x, y, z };

const Union = union(Enum) { x, y, z };