third_party/WebKit/LayoutTests/fast/js/pic/cached-named-property-getter.html

   1 <p>
   2 This page tests cached access to getters and setters. If the test passes,
   3 you'll see a series of PASS messages below.
   4 </p>
   5
   6 <pre id="console"></pre>
   7
   8 <script>
   9 (function() {
  10     if (window.testRunner)
  11         testRunner.dumpAsText();
  12
  13     function log(s)
  14     {
  15         if (this.document)
  16             document.getElementById("console").appendChild(document.createTextNode(s + "\n"));
  17         else
  18             print(s + "\n");
  19     }
  20
  21     function shouldBe(a, aDescription, b)
  22     {
  23         if (a === b) {
  24             log("PASS: " + aDescription + " should be " + b + " and is.");
  25         } else {
  26             log("FAIL: " + aDescription + " should be " + b + " but instead is " + a + ".");
  27         }
  28     }
  29
  30     function testGetter(o) {
  31         var result;
  32         for (var i = 0; i < 10; i++)
  33             result = o.length;
  34         return result;
  35     }
  36     function testProtoGetter(o) {
  37         var result;
  38         for (var i = 0; i < 10; i++)
  39             result = o.length;
  40         return result;
  41     }
  42     function testProtoChainGetter(o) {
  43         var result;
  44         for (var i = 0; i < 10; i++)
  45             result = o.length;
  46         return result;
  47     }
  48     function getterTest(str, expected) {
  49         shouldBe(eval(str), str, expected);
  50     }
  51     var testFunction3 = function(a,b,c){}
  52     var testFunction5 = function(a,b,c,d,e){}
  53     getterTest("testGetter({__proto__: {count: 'FAIL'}, get length(){ return this.count; }, count: 7})", 7);
  54     getterTest("testGetter(testFunction3)", 3);
  55     getterTest("testGetter(testFunction5)", 5);
  56
  57     getterTest("testProtoGetter({__proto__: {count: 'FAIL', get length(){ return this.count; }}, count: 7})", 7);
  58     getterTest("testProtoGetter({__proto__: testFunction3, count: 'FAIL'})", 3);
  59     getterTest("testProtoGetter({__proto__: testFunction5, count: 'FAIL'})", 5);
  60
  61     getterTest("testProtoChainGetter({__proto__: {__proto__: {count: 'FAIL', get length(){ return this.count; }}}, count: 7})", 7);
  62     getterTest("testProtoChainGetter({__proto__: {__proto__: testFunction3}, count: 'FAIL'})", 3);
  63     getterTest("testProtoChainGetter({__proto__: {__proto__: testFunction5}, count: 'FAIL'})", 5);
  64
  65     function testCustomGetter(o) {
  66         for (var i = 0; i < 10; i++)
  67             o.ignoreCase;
  68     }
  69     var r=/a/;
  70     testCustomGetter({__proto__: r});
  71     testCustomGetter({__proto__: {__proto__: r}});
  72
  73 })();
  74 </script>