tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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bug861165.js (1654B)

      1 // IM has the following fastpaths:
      2 // - constant index (constant)
      3 // - need negative int check (neg)
      4 // - needs hole check (hole)
      5 // So to test everything we have to do:
      6 //            constant | neg | hole
      7 //  test 1:     0         0      0
      8 //  test 2:     1         0      0
      9 //  test 3:     0         1      0
     10 //  test 4:     1         1      0
     11 //  test 5:     0         0      1
     12 //  test 6:     1         0      1
     13 //  test 7:     0         1      1
     14 //  test 8:     1         1      1
     15 
     16 function test1(index, a) {
     17  if (index < 0)
     18    index = -index
     19  return index in a;
     20 }
     21 assertEq(test1(1, [1,2]), true);
     22 
     23 function test2(a) {
     24  return 0 in a;
     25 }
     26 assertEq(test2([1,2]), true);
     27 
     28 function test3(index, a) {
     29  return index in a;
     30 }
     31 
     32 var arr3 = [];
     33 arr3["-1073741828"] = 17;
     34 assertEq(test3(-1073741828, arr3), true);
     35 
     36 function test4(a) {
     37  return -1073741828 in a;
     38 }
     39 assertEq(test4(arr3), true);
     40 
     41 
     42 function test5(index, a) {
     43  if (index < 0)
     44    index = -index
     45  return index in a;
     46 }
     47 var arr5 = [];
     48 arr5[0] = 1
     49 arr5[1] = 1
     50 arr5[2] = 1
     51 arr5[4] = 1
     52 assertEq(test5(1, arr5), true);
     53 assertEq(test5(3, arr5), false);
     54 
     55 function test7a(a) {
     56  return 3 in a;
     57 }
     58 function test7b(a) {
     59  return 4 in a;
     60 }
     61 assertEq(test7a(arr5), false);
     62 assertEq(test7b(arr5), true);
     63 
     64 function test8(index, a) {
     65  return index in a;
     66 }
     67 arr5["-1073741828"] = 17;
     68 assertEq(test8(-1073741828, arr5), true);
     69 assertEq(test8(3, arr5), false);
     70 assertEq(test8(0, arr5), true);
     71 
     72 function test9a(a) {
     73  return 0 in a;
     74 }
     75 function test9b(a) {
     76  return 3 in a;
     77 }
     78 function test9c(a) {
     79  return -1073741828 in a;
     80 }
     81 assertEq(test9a(arr5), true);
     82 assertEq(test9b(arr5), false);
     83 assertEq(test9c(arr5), true);