x = [1,2];
switch (x) {
  @match [1,2] && 1 == 2: printf("fail!\n"); break;
  case [1,2]: printf("ok!\n"); break;
}

switch (x) {
  @match [2,x]: /* no match */
  @match [1,x] && x > 1: /* matches, falls through */
  @match [x,2] && x != 0: 
    switch (x) {
    @match 2: printf("ok!\n"); break;
    default: printf("fail!\n");
    }
}