| // Copyright 2013 the V8 project authors. All rights reserved. |
| // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // 1. Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // |
| // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY |
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| description("Test behaviour of JSON reviver function.") |
| if (!Array.isArray) |
| Array.isArray = function(o) { return o.constructor === Array; } |
| |
| function arrayReviver(i,v) { |
| if (i != "") { |
| currentHolder = this; |
| debug(""); |
| debug("Ensure the holder for our array is indeed an array"); |
| shouldBeTrue("Array.isArray(currentHolder)"); |
| shouldBe("currentHolder.length", "" + expectedLength); |
| if (i > 0) { |
| debug(""); |
| debug("Ensure that we always get the same holder"); |
| shouldBe("currentHolder", "lastHolder"); |
| } |
| switch (Number(i)) { |
| case 0: |
| v = undefined; |
| debug(""); |
| debug("Ensure that the holder already has all the properties present at the start of filtering"); |
| shouldBe("currentHolder[0]", '"a value"'); |
| shouldBe("currentHolder[1]", '"another value"'); |
| shouldBe("currentHolder[2]", '"and another value"'); |
| shouldBe("currentHolder[3]", '"to delete"'); |
| shouldBe("currentHolder[4]", '"extra value"'); |
| break; |
| |
| case 1: |
| debug(""); |
| debug("Ensure that returning undefined has removed the property 0 from the holder during filtering."); |
| shouldBeFalse("currentHolder.hasOwnProperty(0)"); |
| currentHolder[2] = "a replaced value"; |
| break; |
| |
| case 2: |
| debug(""); |
| debug("Ensure that changing the value of a property is reflected while filtering.") |
| shouldBe("currentHolder[2]", '"a replaced value"'); |
| value = v; |
| debug(""); |
| debug("Ensure that the changed value is reflected in the arguments passed to the reviver"); |
| shouldBe("value", "currentHolder[2]"); |
| delete this[3]; |
| break; |
| |
| case 3: |
| debug(""); |
| debug("Ensure that we visited a value that we have deleted, and that deletion is reflected while filtering."); |
| shouldBeFalse("currentHolder.hasOwnProperty(3)"); |
| value = v; |
| debug(""); |
| debug("Ensure that when visiting a deleted property value is undefined"); |
| shouldBeUndefined("value"); |
| this.length = 3; |
| v = "undelete the property"; |
| expectedLength = 4; |
| break; |
| |
| case 4: |
| if (this.length != 4) { |
| testFailed("Did not call reviver for deleted property"); |
| expectedLength = this.length = 3; |
| break; |
| } |
| |
| case 5: |
| testPassed("Ensured that property was visited despite Array length being reduced."); |
| value = v; |
| shouldBeUndefined("value"); |
| this[10] = "fail"; |
| break; |
| |
| default: |
| testFailed("Visited unexpected property " + i + " with value " + v); |
| } |
| } |
| lastHolder = this; |
| return v; |
| } |
| expectedLength = 5; |
| var result = JSON.parse('["a value", "another value", "and another value", "to delete", "extra value"]', arrayReviver); |
| debug(""); |
| debug("Ensure that we created the root holder as specified in ES5"); |
| shouldBeTrue("'' in lastHolder"); |
| shouldBe("result", "lastHolder['']"); |
| debug(""); |
| debug("Ensure that a deleted value is revived if the reviver function returns a value"); |
| shouldBeTrue("result.hasOwnProperty(3)"); |
| |
| function objectReviver(i,v) { |
| if (i != "") { |
| currentHolder = this; |
| shouldBeTrue("currentHolder != globalObject"); |
| if (seen) { |
| debug(""); |
| debug("Ensure that we get the same holder object for each property"); |
| shouldBe("currentHolder", "lastHolder"); |
| } |
| seen = true; |
| switch (i) { |
| case "a property": |
| v = undefined; |
| debug(""); |
| debug("Ensure that the holder already has all the properties present at the start of filtering"); |
| shouldBe("currentHolder['a property']", '"a value"'); |
| shouldBe("currentHolder['another property']", '"another value"'); |
| shouldBe("currentHolder['and another property']", '"and another value"'); |
| shouldBe("currentHolder['to delete']", '"will be deleted"'); |
| break; |
| |
| case "another property": |
| debug(""); |
| debug("Ensure that returning undefined has correctly removed the property 'a property' from the holder object"); |
| shouldBeFalse("currentHolder.hasOwnProperty('a property')"); |
| currentHolder['and another property'] = "a replaced value"; |
| break; |
| |
| case "and another property": |
| debug("Ensure that changing the value of a property is reflected while filtering."); |
| shouldBe("currentHolder['and another property']", '"a replaced value"'); |
| value = v; |
| debug(""); |
| debug("Ensure that the changed value is reflected in the arguments passed to the reviver"); |
| shouldBe("value", '"a replaced value"'); |
| delete this["to delete"]; |
| break; |
| |
| case "to delete": |
| debug(""); |
| debug("Ensure that we visited a value that we have deleted, and that deletion is reflected while filtering."); |
| shouldBeFalse("currentHolder.hasOwnProperty('to delete')"); |
| value = v; |
| debug(""); |
| debug("Ensure that when visiting a deleted property value is undefined"); |
| shouldBeUndefined("value"); |
| v = "undelete the property"; |
| this["new property"] = "fail"; |
| break; |
| default: |
| testFailed("Visited unexpected property " + i + " with value " + v); |
| } |
| } |
| lastHolder = this; |
| return v; |
| } |
| |
| debug(""); |
| debug("Test behaviour of revivor used in conjunction with an object"); |
| var seen = false; |
| var globalObject = this; |
| var result = JSON.parse('{"a property" : "a value", "another property" : "another value", "and another property" : "and another value", "to delete" : "will be deleted"}', objectReviver); |
| debug(""); |
| debug("Ensure that we created the root holder as specified in ES5"); |
| shouldBeTrue("lastHolder.hasOwnProperty('')"); |
| shouldBeFalse("result.hasOwnProperty('a property')"); |
| shouldBeTrue("result.hasOwnProperty('to delete')"); |
| shouldBe("result", "lastHolder['']"); |
| |
| debug(""); |
| debug("Test behaviour of revivor that introduces a cycle"); |
| function reviveAddsCycle(i, v) { |
| if (i == 0) |
| this[1] = this; |
| return v; |
| } |
| |
| shouldThrow('JSON.parse("[0,1]", reviveAddsCycle)'); |
| |
| debug(""); |
| debug("Test behaviour of revivor that introduces a new array classed object (the result of a regex)"); |
| var createdBadness = false; |
| function reviveIntroducesNewArrayLikeObject(i, v) { |
| if (i == 0 && !createdBadness) { |
| this[1] = /(a)+/.exec("a"); |
| createdBadness = true; |
| } |
| return v; |
| } |
| |
| shouldBe('JSON.stringify(JSON.parse("[0,1]", reviveIntroducesNewArrayLikeObject))', '\'[0,["a","a"]]\''); |
