tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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condswitch.js (2559B)

      1 // This test case is made to be run with --ion-eager.
      2 
      3 function ret2() {
      4    return 2;
      5 }
      6 
      7 // Check with default case in the middle.
      8 function test0(x) {
      9    var res = 0;
     10    switch (x) {
     11    case (res |= 0x40, 1): // x === 1
     12        res |= 0x1;
     13    default: // otherwise
     14        res |= 0x2;
     15    case (res |= 0x80, ret2()): // x === 2
     16        res |= 0x4;
     17    case (res |= 0x100, 1 + ret2()): // x === 3
     18        res |= 0x8;
     19        break;
     20    case (res |= 0x200, 0): // x === 0
     21        res |= 0x10;
     22    }
     23    res |= 0x20;
     24    return res;
     25 }
     26 
     27 assertEq(test0(0), 0x40 | 0x80 | 0x100 | 0x200 | 0x10 | 0x20);
     28 assertEq(test0(1), 0x40 | 0x1 | 0x2 | 0x4 | 0x8 | 0x20);
     29 assertEq(test0(2), 0x40 | 0x80 | 0x4 | 0x8 | 0x20);
     30 assertEq(test0(3), 0x40 | 0x80 | 0x100 | 0x8 | 0x20);
     31 assertEq(test0(4), 0x40 | 0x80 | 0x100 | 0x200 | 0x2 | 0x4 | 0x8 | 0x20);
     32 
     33 // Check with no default and only one case.
     34 function test1(x) {
     35    var res = 0;
     36    switch (x) {
     37    case (res |= 0x1, ret2()): // x === 2
     38        res |= 0x2;
     39    }
     40    res |= 0x4;
     41    return res;
     42 }
     43 
     44 assertEq(test1(1), 0x1 | 0x4); // default.
     45 assertEq(test1(2), 0x1 | 0x2 | 0x4); // case.
     46 
     47 // Check with default case identical to a case.
     48 function test2(x) {
     49    var res = 0;
     50    switch (x) {
     51    case (res |= 0x1, 0):
     52        res |= 0x10;
     53        break;
     54    default:
     55    case (res |= 0x2, 1):
     56        res |= 0x20;
     57        break;
     58    case (res |= 0x4, ret2()): // x === 2
     59        res |= 0x40;
     60    }
     61    res |= 0x100;
     62    return res;
     63 }
     64 
     65 assertEq(test2(0), 0x1 | 0x10 | 0x100);
     66 assertEq(test2(1), 0x1 | 0x2 | 0x20 | 0x100);
     67 assertEq(test2(2), 0x1 | 0x2 | 0x4 | 0x40 | 0x100);
     68 assertEq(test2(3), 0x1 | 0x2 | 0x4 | 0x20 | 0x100);
     69 
     70 // Check a non-break, non-empty default at the end.
     71 function test3(x) {
     72    var res = 0;
     73    switch (x) {
     74    case (res |= 0x1, 1):
     75        res |= 0x10;
     76    case (res |= 0x2, ret2()): // x === 2
     77        res |= 0x20;
     78    default:
     79        res |= 0x40;
     80    }
     81    res |= 0x100;
     82    return res;
     83 }
     84 
     85 assertEq(test3(1), 0x1 | 0x10 | 0x20 | 0x40 | 0x100);
     86 assertEq(test3(2), 0x1 | 0x2 | 0x20 | 0x40 | 0x100);
     87 assertEq(test3(3), 0x1 | 0x2 | 0x40 | 0x100);
     88 
     89 // Check cfg in condition of non-last case with no break. (reverse post order failure ?)
     90 function test4(x) {
     91    var res = 0;
     92    switch (x) {
     93    case (res |= 0x1, (x ? 1 : 0)):
     94        res |= 0x10;
     95    case (res |= 0x2, ret2()): // x === 2
     96        res |= 0x20;
     97    }
     98    res |= 0x100;
     99    return res;
    100 }
    101 
    102 assertEq(test4(0), 0x1 | 0x10 | 0x20 | 0x100);
    103 assertEq(test4(1), 0x1 | 0x10 | 0x20 | 0x100);
    104 assertEq(test4(2), 0x1 | 0x2 | 0x20 | 0x100);