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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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969 obj[symbol]++; | 969 obj[symbol]++; |
970 obj[symbol] *= 3; | 970 obj[symbol] *= 3; |
971 delete obj[symbol]; | 971 delete obj[symbol]; |
972 obj.__defineSetter__(symbol, function() {}); | 972 obj.__defineSetter__(symbol, function() {}); |
973 obj.__defineGetter__(symbol, function() {}); | 973 obj.__defineGetter__(symbol, function() {}); |
974 Object.deliverChangeRecords(observer.callback); | 974 Object.deliverChangeRecords(observer.callback); |
975 observer.assertNotCalled(); | 975 observer.assertNotCalled(); |
976 | 976 |
977 | 977 |
978 // Test all kinds of objects generically. | 978 // Test all kinds of objects generically. |
979 function TestObserveConfigurable(obj, prop, is_writable) { | 979 function TestObserveConfigurable(obj, prop) { |
980 reset(); | 980 reset(); |
981 var valueWhenDeleted = is_writable ? 3 : obj[prop]; | |
982 Object.observe(obj, observer.callback); | 981 Object.observe(obj, observer.callback); |
983 Object.unobserve(obj, observer.callback); | 982 Object.unobserve(obj, observer.callback); |
984 obj[prop] = 1; | 983 obj[prop] = 1; |
985 Object.observe(obj, observer.callback); | 984 Object.observe(obj, observer.callback); |
986 obj[prop] = 2; | 985 obj[prop] = 2; |
987 obj[prop] = valueWhenDeleted; | 986 obj[prop] = 3; |
988 delete obj[prop]; | 987 delete obj[prop]; |
989 // If the deleted obj[prop] exposed another 'prop' along the | 988 obj[prop] = 4; |
990 // prototype chain, only update it if it doesn't have an | |
991 // (inheritable) accessor or it is a read-only data property. If | |
992 // either of those is true, then instead create an own property with | |
993 // the descriptor that [[Put]] mandates for a new property (ES-5.1, | |
994 // 8.12.5.6) | |
995 var createOwnProperty = false; | |
996 for (var o = Object.getPrototypeOf(obj); o; o = Object.getPrototypeOf(o)) { | |
997 var desc = Object.getOwnPropertyDescriptor(o, prop); | |
998 if (desc) { | |
999 if (!desc.writable) | |
1000 createOwnProperty = true; | |
1001 break; | |
1002 } | |
1003 } | |
1004 if (createOwnProperty) | |
1005 Object.defineProperty(obj, prop, { | |
1006 value: 4, | |
1007 writable: true, | |
1008 enumerable: true, | |
1009 configurable: true | |
1010 }); | |
1011 else | |
1012 obj[prop] = 4; | |
1013 obj[prop] = 4; // ignored | 989 obj[prop] = 4; // ignored |
1014 obj[prop] = 5; | 990 obj[prop] = 5; |
1015 Object.defineProperty(obj, prop, {value: 6}); | 991 Object.defineProperty(obj, prop, {value: 6}); |
1016 Object.defineProperty(obj, prop, {writable: false}); | 992 Object.defineProperty(obj, prop, {writable: false}); |
1017 obj[prop] = 7; // ignored | 993 obj[prop] = 7; // ignored |
1018 Object.defineProperty(obj, prop, {value: 8}); | 994 Object.defineProperty(obj, prop, {value: 8}); |
1019 Object.defineProperty(obj, prop, {value: 7, writable: true}); | 995 Object.defineProperty(obj, prop, {value: 7, writable: true}); |
1020 Object.defineProperty(obj, prop, {get: function() {}}); | 996 Object.defineProperty(obj, prop, {get: function() {}}); |
1021 Object.defineProperty(obj, prop, {get: frozenFunction}); | 997 Object.defineProperty(obj, prop, {get: frozenFunction}); |
1022 Object.defineProperty(obj, prop, {get: frozenFunction}); // ignored | 998 Object.defineProperty(obj, prop, {get: frozenFunction}); // ignored |
1023 Object.defineProperty(obj, prop, {get: frozenFunction, set: frozenFunction}); | 999 Object.defineProperty(obj, prop, {get: frozenFunction, set: frozenFunction}); |
1024 Object.defineProperty(obj, prop, {set: frozenFunction}); // ignored | 1000 Object.defineProperty(obj, prop, {set: frozenFunction}); // ignored |
1025 Object.defineProperty(obj, prop, {get: undefined, set: frozenFunction}); | 1001 Object.defineProperty(obj, prop, {get: undefined, set: frozenFunction}); |
1026 obj.__defineSetter__(prop, frozenFunction); // ignored | 1002 obj.__defineSetter__(prop, frozenFunction); // ignored |
1027 obj.__defineSetter__(prop, function() {}); | 1003 obj.__defineSetter__(prop, function() {}); |
1028 obj.__defineGetter__(prop, function() {}); | 1004 obj.__defineGetter__(prop, function() {}); |
1029 delete obj[prop]; | 1005 delete obj[prop]; |
1030 delete obj[prop]; // ignored | 1006 delete obj[prop]; // ignored |
1031 obj.__defineGetter__(prop, function() {}); | 1007 obj.__defineGetter__(prop, function() {}); |
1032 delete obj[prop]; | 1008 delete obj[prop]; |
1033 Object.defineProperty(obj, prop, {get: function() {}, configurable: true}); | 1009 Object.defineProperty(obj, prop, {get: function() {}, configurable: true}); |
1034 Object.defineProperty(obj, prop, {value: 9, writable: true}); | 1010 Object.defineProperty(obj, prop, {value: 9, writable: true}); |
1035 obj[prop] = 10; | 1011 obj[prop] = 10; |
1036 ++obj[prop]; | 1012 ++obj[prop]; |
1037 obj[prop]++; | 1013 obj[prop]++; |
1038 obj[prop] *= 3; | 1014 obj[prop] *= 3; |
1039 delete obj[prop]; | 1015 delete obj[prop]; |
1040 Object.defineProperty(obj, prop, {value: 11, configurable: true}); | 1016 Object.defineProperty(obj, prop, {value: 11, configurable: true}); |
1041 Object.deliverChangeRecords(observer.callback); | 1017 Object.deliverChangeRecords(observer.callback); |
1042 | 1018 observer.assertCallbackRecords([ |
1043 var expected = [ | 1019 { object: obj, name: prop, type: "update", oldValue: 1 }, |
1044 { object: obj, name: prop, type: "delete", oldValue: valueWhenDeleted }, | 1020 { object: obj, name: prop, type: "update", oldValue: 2 }, |
| 1021 { object: obj, name: prop, type: "delete", oldValue: 3 }, |
1045 { object: obj, name: prop, type: "add" }, | 1022 { object: obj, name: prop, type: "add" }, |
1046 { object: obj, name: prop, type: "update", oldValue: 4 }, | 1023 { object: obj, name: prop, type: "update", oldValue: 4 }, |
1047 { object: obj, name: prop, type: "update", oldValue: 5 }, | 1024 { object: obj, name: prop, type: "update", oldValue: 5 }, |
1048 { object: obj, name: prop, type: "reconfigure" }, | 1025 { object: obj, name: prop, type: "reconfigure" }, |
1049 { object: obj, name: prop, type: "update", oldValue: 6 }, | 1026 { object: obj, name: prop, type: "update", oldValue: 6 }, |
1050 { object: obj, name: prop, type: "reconfigure", oldValue: 8 }, | 1027 { object: obj, name: prop, type: "reconfigure", oldValue: 8 }, |
1051 { object: obj, name: prop, type: "reconfigure", oldValue: 7 }, | 1028 { object: obj, name: prop, type: "reconfigure", oldValue: 7 }, |
1052 { object: obj, name: prop, type: "reconfigure" }, | 1029 { object: obj, name: prop, type: "reconfigure" }, |
1053 { object: obj, name: prop, type: "reconfigure" }, | 1030 { object: obj, name: prop, type: "reconfigure" }, |
1054 { object: obj, name: prop, type: "reconfigure" }, | 1031 { object: obj, name: prop, type: "reconfigure" }, |
1055 { object: obj, name: prop, type: "reconfigure" }, | 1032 { object: obj, name: prop, type: "reconfigure" }, |
1056 { object: obj, name: prop, type: "reconfigure" }, | 1033 { object: obj, name: prop, type: "reconfigure" }, |
1057 { object: obj, name: prop, type: "delete" }, | 1034 { object: obj, name: prop, type: "delete" }, |
1058 { object: obj, name: prop, type: "add" }, | 1035 { object: obj, name: prop, type: "add" }, |
1059 { object: obj, name: prop, type: "delete" }, | 1036 { object: obj, name: prop, type: "delete" }, |
1060 { object: obj, name: prop, type: "add" }, | 1037 { object: obj, name: prop, type: "add" }, |
1061 { object: obj, name: prop, type: "reconfigure" }, | 1038 { object: obj, name: prop, type: "reconfigure" }, |
1062 { object: obj, name: prop, type: "update", oldValue: 9 }, | 1039 { object: obj, name: prop, type: "update", oldValue: 9 }, |
1063 { object: obj, name: prop, type: "update", oldValue: 10 }, | 1040 { object: obj, name: prop, type: "update", oldValue: 10 }, |
1064 { object: obj, name: prop, type: "update", oldValue: 11 }, | 1041 { object: obj, name: prop, type: "update", oldValue: 11 }, |
1065 { object: obj, name: prop, type: "update", oldValue: 12 }, | 1042 { object: obj, name: prop, type: "update", oldValue: 12 }, |
1066 { object: obj, name: prop, type: "delete", oldValue: 36 }, | 1043 { object: obj, name: prop, type: "delete", oldValue: 36 }, |
1067 { object: obj, name: prop, type: "add" }, | 1044 { object: obj, name: prop, type: "add" }, |
1068 ]; | 1045 ]); |
1069 | |
1070 if (is_writable) { | |
1071 expected.unshift( | |
1072 { object: obj, name: prop, type: "update", oldValue: 1 }, | |
1073 { object: obj, name: prop, type: "update", oldValue: 2 }); | |
1074 } | |
1075 | |
1076 observer.assertCallbackRecords(expected); | |
1077 Object.unobserve(obj, observer.callback); | 1046 Object.unobserve(obj, observer.callback); |
1078 delete obj[prop]; | 1047 delete obj[prop]; |
1079 } | 1048 } |
1080 | 1049 |
1081 function TestObserveNonConfigurable(obj, prop, desc) { | 1050 function TestObserveNonConfigurable(obj, prop, desc) { |
1082 reset(); | 1051 reset(); |
1083 Object.observe(obj, observer.callback); | 1052 Object.observe(obj, observer.callback); |
1084 Object.unobserve(obj, observer.callback); | 1053 Object.unobserve(obj, observer.callback); |
1085 obj[prop] = 1; | 1054 obj[prop] = 1; |
1086 Object.observe(obj, observer.callback); | 1055 Object.observe(obj, observer.callback); |
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1168 (obj instanceof ArrayBuffer && prop == 1) | 1137 (obj instanceof ArrayBuffer && prop == 1) |
1169 } | 1138 } |
1170 | 1139 |
1171 for (var i in objects) for (var j in properties) { | 1140 for (var i in objects) for (var j in properties) { |
1172 var obj = objects[i]; | 1141 var obj = objects[i]; |
1173 var prop = properties[j]; | 1142 var prop = properties[j]; |
1174 if (blacklisted(obj, prop)) continue; | 1143 if (blacklisted(obj, prop)) continue; |
1175 var desc = Object.getOwnPropertyDescriptor(obj, prop); | 1144 var desc = Object.getOwnPropertyDescriptor(obj, prop); |
1176 print("***", typeof obj, stringifyNoThrow(obj), prop); | 1145 print("***", typeof obj, stringifyNoThrow(obj), prop); |
1177 if (!desc || desc.configurable) | 1146 if (!desc || desc.configurable) |
1178 TestObserveConfigurable(obj, prop, !desc || desc.writable); | 1147 TestObserveConfigurable(obj, prop); |
1179 else if (desc.writable) | 1148 else if (desc.writable) |
1180 TestObserveNonConfigurable(obj, prop, desc); | 1149 TestObserveNonConfigurable(obj, prop, desc); |
1181 } | 1150 } |
1182 | 1151 |
1183 | 1152 |
1184 // Observing array length (including truncation) | 1153 // Observing array length (including truncation) |
1185 reset(); | 1154 reset(); |
1186 var arr = ['a', 'b', 'c', 'd']; | 1155 var arr = ['a', 'b', 'c', 'd']; |
1187 var arr2 = ['alpha', 'beta']; | 1156 var arr2 = ['alpha', 'beta']; |
1188 var arr3 = ['hello']; | 1157 var arr3 = ['hello']; |
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1811 for (var n1 = 0; n1 < 3; ++n1) | 1780 for (var n1 = 0; n1 < 3; ++n1) |
1812 for (var n2 = 0; n2 < 3; ++n2) | 1781 for (var n2 = 0; n2 < 3; ++n2) |
1813 for (var i in mutation) | 1782 for (var i in mutation) |
1814 TestFastElementsLength(mutation[i], b1 != 0, b2 != 0, 20*n1, 20*n2); | 1783 TestFastElementsLength(mutation[i], b1 != 0, b2 != 0, 20*n1, 20*n2); |
1815 | 1784 |
1816 for (var b1 = 0; b1 < 2; ++b1) | 1785 for (var b1 = 0; b1 < 2; ++b1) |
1817 for (var b2 = 0; b2 < 2; ++b2) | 1786 for (var b2 = 0; b2 < 2; ++b2) |
1818 for (var n = 0; n < 3; ++n) | 1787 for (var n = 0; n < 3; ++n) |
1819 for (var i in mutationByIncr) | 1788 for (var i in mutationByIncr) |
1820 TestFastElementsLength(mutationByIncr[i], b1 != 0, b2 != 0, 7*n, 7*n+1); | 1789 TestFastElementsLength(mutationByIncr[i], b1 != 0, b2 != 0, 7*n, 7*n+1); |
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