| // Any copyright is dedicated to the Public Domain. |
| // http://creativecommons.org/licenses/publicdomain/ |
| |
| var gTestfile = 'stringify-replacer-array-hijinks.js'; |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 648471; |
| var summary = |
| "Better/more correct handling for replacer arrays with getter array index " + |
| "properties"; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| var replacer = [0, 1, 2, 3]; |
| Object.prototype[3] = 3; |
| Object.defineProperty(replacer, 1, { |
| get: function() |
| { |
| Object.defineProperty(replacer, 4, { value: 4 }); |
| delete replacer[2]; |
| delete replacer[3]; |
| replacer[5] = 5; |
| return 1; |
| } |
| }); |
| |
| var s = |
| JSON.stringify({0: { 1: { 3: { 4: { 5: { 2: "omitted" } } } } } }, replacer); |
| |
| // The replacer array's length is as seen on first query, so property names are |
| // accumulated for indexes i ∈ {0, 1, 2, 3}, but index 1 deletes 2 and 3, so 2 |
| // isn't seen but 3 is seen as Object.prototype[3]. |
| assertEq('{"0":{"1":{"3":{"3":3}},"3":3},"3":3}', s); |
| |
| |
| var replacer = [0, 1, 2, 3]; |
| Object.defineProperty(replacer, 0, { |
| get: function() |
| { |
| replacer.length = 0; |
| return {}; |
| } |
| }); |
| |
| // The replacer.length truncation means only properties on the prototype chain |
| // shine through, but it doesn't affect the original bounds of the iteration |
| // used to determine property names which will be included in the final string. |
| assertEq(JSON.stringify({ 0: 0, 1: 1, 2: 2, 3: 3 }, replacer), |
| '{"3":3}'); |
| |
| /******************************************************************************/ |
| |
| if (typeof reportCompare === "function") |
| reportCompare(true, true); |
| |
| print("Tests complete"); |