tor-browser

The Tor Browser
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fun-apply-as-call-scripted-2.js (1160B)


      1 // Function.prototype.apply is inlined as Function.prototype.call when it's
      2 // called with less than two arguments.
      3 //
      4 // Test polymorphic calls.
      5 
      6 function one() {
      7  return 1;
      8 }
      9 
     10 function two() {
     11  return 2;
     12 }
     13 
     14 function testThisAbsent() {
     15  let xs = [one, two];
     16  for (let i = 0; i < 200; ++i) {
     17    let r = xs[i & 1].apply();
     18    assertEq(r, 1 + (i & 1));
     19  }
     20 }
     21 for (let i = 0; i < 2; ++i) testThisAbsent();
     22 
     23 function test0() {
     24  let xs = [one, two];
     25  for (let i = 0; i < 200; ++i) {
     26    let r = xs[i & 1].apply(null);
     27    assertEq(r, 1 + (i & 1));
     28  }
     29 }
     30 for (let i = 0; i < 2; ++i) test0();
     31 
     32 // NOTE: We don't yet inline the case when the second argument is |null|.
     33 function test1Null() {
     34  let xs = [one, two];
     35  for (let i = 0; i < 200; ++i) {
     36    let r = xs[i & 1].apply(null, null);
     37    assertEq(r, 1 + (i & 1));
     38  }
     39 }
     40 for (let i = 0; i < 2; ++i) test1Null();
     41 
     42 // NOTE: We don't yet inline the case when the second argument is |undefined|.
     43 function test1Undefined() {
     44  let xs = [one, two];
     45  for (let i = 0; i < 200; ++i) {
     46    let r = xs[i & 1].apply(null, undefined);
     47    assertEq(r, 1 + (i & 1));
     48  }
     49 }
     50 for (let i = 0; i < 2; ++i) test1Undefined();