The Tor Browser / file comparison
comparison: dom/tests/mochitest/whatwg/postMessage_structured_clone_helper.html
dom/tests/mochitest/whatwg/postMessage_structured_clone_helper.html
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
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| -1:000000000000 | 0:6aa10cc4d219 |
|---|---|
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>postMessage structured clone page</title> | |
| 5 <script type="application/javascript;version=1.7" | |
| 6 src="postMessage_structured_clone_helper.js"></script> | |
| 7 <script type="application/javascript;version=1.7"> | |
| 8 var generator = new getTestContent() | |
| 9 | |
| 10 function isClone(a, b) { | |
| 11 window.dump("Object a: " + a + "\n"); | |
| 12 window.dump("Object b: " + b + "\n"); | |
| 13 var stack = [[a, b]]; | |
| 14 var memory = new WeakMap(); | |
| 15 var rmemory = new WeakMap(); | |
| 16 | |
| 17 while (stack.length > 0) { | |
| 18 var pair = stack.pop(); | |
| 19 var x = pair[0], y = pair[1]; | |
| 20 if (typeof x !== "object" || x === null) { | |
| 21 // x is primitive. | |
| 22 if (x !== y) { | |
| 23 window.dump("Primitives not equal!\n"); | |
| 24 return false; | |
| 25 } | |
| 26 } else if (x instanceof Date) { | |
| 27 if (x.getTime() == y.getTime()) | |
| 28 return true; | |
| 29 window.dump("Dates not equal!\n"); | |
| 30 return false; | |
| 31 } else if (memory.has(x)) { | |
| 32 // x is an object we have seen before in a. | |
| 33 if (y !== memory.get(x)) { | |
| 34 window.dump("Already seen!?\n"); | |
| 35 return false; | |
| 36 } | |
| 37 if (!(rmemory.get(y) == x)) { | |
| 38 window.dump("Not equal??\n"); | |
| 39 return false; | |
| 40 } | |
| 41 } else { | |
| 42 // x is an object we have not seen before. | |
| 43 // Check that we have not seen y before either. | |
| 44 if (rmemory.has(y)) { | |
| 45 // If we have seen y before, the only possible outcome | |
| 46 // is that x and y are literally the same object. | |
| 47 if (y == x) | |
| 48 continue; | |
| 49 window.dump("Already seen y!?\n"); | |
| 50 window.dump(y.toString() + "\n"); | |
| 51 return false; | |
| 52 } | |
| 53 | |
| 54 // x and y must be of the same [[Class]]. | |
| 55 var xcls = Object.prototype.toString.call(x); | |
| 56 var ycls = Object.prototype.toString.call(y); | |
| 57 if (xcls !== ycls) { | |
| 58 window.dump("Failing on proto\n"); | |
| 59 return false; | |
| 60 } | |
| 61 | |
| 62 // This function is only designed to check Objects and Arrays. | |
| 63 if (!(xcls === "[object Object]" || xcls === "[object Array]")) { | |
| 64 window.dump("Not an object!\n"); | |
| 65 window.dump(xcls + "\n"); | |
| 66 return false; | |
| 67 } | |
| 68 | |
| 69 // Compare objects. | |
| 70 var xk = Object.keys(x), yk = Object.keys(y); | |
| 71 if (xk.length !== yk.length) { | |
| 72 window.dump("Length mismatch!\n"); | |
| 73 return false; | |
| 74 } | |
| 75 for (var i = 0; i < xk.length; i++) { | |
| 76 // We must see the same property names in the same order. | |
| 77 if (xk[i] !== yk[i]) { | |
| 78 window.dump("wrong order\n"); | |
| 79 return false; | |
| 80 } | |
| 81 | |
| 82 // Put the property values on the stack to compare later. | |
| 83 stack.push([x[xk[i]], y[yk[i]]]); | |
| 84 } | |
| 85 | |
| 86 // Record that we have seen this pair of objects. | |
| 87 memory.set(x, y); | |
| 88 rmemory.set(y, x); | |
| 89 } | |
| 90 } | |
| 91 return true; | |
| 92 } | |
| 93 | |
| 94 function receiveMessage(evt) | |
| 95 { | |
| 96 if (isClone(evt.data, generator.next())) | |
| 97 window.parent.postMessage("TEST-PASS", "*"); | |
| 98 else | |
| 99 window.parent.postMessage("TEST-FAIL", "*"); | |
| 100 } | |
| 101 window.addEventListener("message", receiveMessage, false); | |
| 102 </script> | |
| 103 </head> | |
| 104 <body> | |
| 105 </body> | |
| 106 </html> |
