| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| </head> |
| <body> |
| <script> |
| description('Check that custom accessor being redefined invalidates our inline caches.'); |
| |
| (function() { |
| "use strict"; |
| |
| let setterCalled = false; |
| |
| function accessProperty() { |
| let oScript = document.createElement("script"); |
| oScript.src = Math.random(); |
| } |
| |
| // Force "code optimization" by calling the function several times |
| for (let i = 0; i < 1000; i++) { |
| accessProperty(); |
| } |
| |
| // Define a custom setter for HTMLScriptElement#src |
| const descriptor = Object.getOwnPropertyDescriptor(HTMLScriptElement.prototype, "src"); |
| Object.defineProperty(HTMLScriptElement.prototype, "src", { |
| get: descriptor.get, |
| set: function() { |
| |
| setterCalled = true; |
| |
| descriptor.set.apply(this, arguments); |
| }, |
| enumerable: descriptor.enumerable, |
| configurable: descriptor.configurable |
| }); |
| |
| accessProperty(); |
| |
| if (setterCalled) |
| testPassed("setter called as expected"); |
| else |
| testFailed("Unexpected, setter not called."); |
| })(); |
| </script> |
| |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
