tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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monomorphic-property-access.js (720B)

      1 function Foo() {
      2    for (var i=0; i<10; i++) {
      3        this["p" + i] = i;
      4    }
      5 }
      6 
      7 function test1(foo) {
      8    for (var i=0; i<10400; i++) {
      9        foo.p1 = i;
     10        foo.p9 = i;
     11        var x = foo.p0 + foo.p1 + foo.p2 + foo.p8 + foo.p4 +
     12            foo.p5 + foo.p6 + foo.p7 + foo.p3 + foo.p9;
     13        assertEq(x, i + i + 35);
     14    }
     15 }
     16 
     17 test1(new Foo);
     18 
     19 function Bar(arg) {
     20    if (arg) { // Thwart definite-property analysis.
     21        this.x = 1;
     22        this.y = 2;
     23        this.z = 3;
     24    }
     25 }
     26 
     27 function test2(bar) {
     28    for (var i=0; i<10400; i++) {
     29        bar.x++;
     30        bar.y++;
     31        bar.z++;
     32    }
     33    assertEq(bar.x, 10401);
     34    assertEq(bar.y, 10402);
     35    assertEq(bar.z, 10403);
     36 }
     37 
     38 test2(new Bar(true));