tor-browser

The Tor Browser
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inlinable-native-accessor-1.js (2529B)

      1 // Test calling an inlinable native accessor property as a normal function.
      2 
      3 // Set.prototype.size is an inlinable getter accessor.
      4 var SetSize = Object.getOwnPropertyDescriptor(Set.prototype, "size").get;
      5 
      6 // Install "size" getter as a normal method on Set.prototype.
      7 Set.prototype.getSize = SetSize;
      8 
      9 var sets = [
     10  new Set(),
     11  new Set([1, 2, 3]),
     12 ];
     13 
     14 // Call inlinable accessor as normal method.
     15 function testInlinableAccessorAsMethod() {
     16  for (var i = 0; i < 100; ++i) {
     17    var set = sets[i & 1];
     18    assertEq(set.getSize(), set.size);
     19  }
     20 }
     21 testInlinableAccessorAsMethod();
     22 
     23 // Call inlinable accessor as through FunCall.
     24 function testInlinableAccessorWithFunCall() {
     25  for (var i = 0; i < 100; ++i) {
     26    var set = sets[i & 1];
     27    assertEq(SetSize.call(set), set.size);
     28  }
     29 }
     30 testInlinableAccessorWithFunCall();
     31 
     32 // Call inlinable accessor as through FunApply.
     33 function testInlinableAccessorWithFunApply() {
     34  for (var i = 0; i < 100; ++i) {
     35    var set = sets[i & 1];
     36    assertEq(SetSize.apply(set), set.size);
     37  }
     38 }
     39 testInlinableAccessorWithFunApply();
     40 
     41 // Call inlinable accessor as through bound FunCall.
     42 function testInlinableAccessorWithBoundFunCall() {
     43  var callSetSize = Function.prototype.call.bind(SetSize);
     44 
     45  for (var i = 0; i < 100; ++i) {
     46    var set = sets[i & 1];
     47    assertEq(callSetSize(set), set.size);
     48  }
     49 }
     50 testInlinableAccessorWithBoundFunCall();
     51 
     52 // Call inlinable accessor as through bound FunCall.
     53 function testInlinableAccessorWithBoundFunApply() {
     54  var applySetSize = Function.prototype.apply.bind(SetSize);
     55 
     56  for (var i = 0; i < 100; ++i) {
     57    var set = sets[i & 1];
     58    assertEq(applySetSize(set), set.size);
     59  }
     60 }
     61 testInlinableAccessorWithBoundFunApply();
     62 
     63 // Call inlinable accessor as bound function.
     64 function testBoundInlinableAccessor() {
     65  var boundSetSize = SetSize.bind(sets[0]);
     66 
     67  for (var i = 0; i < 100; ++i) {
     68    assertEq(boundSetSize(), sets[0].size);
     69  }
     70 }
     71 testBoundInlinableAccessor();
     72 
     73 // Call inlinable accessor as bound function through FunCall.
     74 function testBoundInlinableAccessorWithFunCall() {
     75  var boundSetSize = SetSize.bind(sets[0]);
     76 
     77  for (var i = 0; i < 100; ++i) {
     78    assertEq(boundSetSize.call(), sets[0].size);
     79  }
     80 }
     81 testBoundInlinableAccessorWithFunCall();
     82 
     83 // Call inlinable accessor as bound function through FunApply.
     84 function testBoundInlinableAccessorWithFunApply() {
     85  var boundSetSize = SetSize.bind(sets[0]);
     86 
     87  for (var i = 0; i < 100; ++i) {
     88    assertEq(boundSetSize.apply(), sets[0].size);
     89  }
     90 }
     91 testInlinableAccessorWithBoundFunApply();