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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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950 "use strict"; | 950 "use strict"; |
951 | 951 |
952 var str_val = "string"; | 952 var str_val = "string"; |
953 var str_obj = new String(str_val); | 953 var str_obj = new String(str_val); |
954 var str_cat = str_val + str_val + str_obj; | 954 var str_cat = str_val + str_val + str_obj; |
955 | 955 |
956 assertThrows(function() { str_val.length = 1; }, TypeError); | 956 assertThrows(function() { str_val.length = 1; }, TypeError); |
957 assertThrows(function() { str_obj.length = 1; }, TypeError); | 957 assertThrows(function() { str_obj.length = 1; }, TypeError); |
958 assertThrows(function() { str_cat.length = 1; }, TypeError); | 958 assertThrows(function() { str_cat.length = 1; }, TypeError); |
959 })(); | 959 })(); |
| 960 |
| 961 |
| 962 (function TestArgumentsAliasing() { |
| 963 function strict(a, b) { |
| 964 "use strict"; |
| 965 a = "c"; |
| 966 b = "d"; |
| 967 return [a, b, arguments[0], arguments[1]]; |
| 968 } |
| 969 |
| 970 function nonstrict(a, b) { |
| 971 a = "c"; |
| 972 b = "d"; |
| 973 return [a, b, arguments[0], arguments[1]]; |
| 974 } |
| 975 |
| 976 assertEquals(["c", "d", "a", "b"], strict("a", "b")); |
| 977 assertEquals(["c", "d", "c", "d"], nonstrict("a", "b")); |
| 978 })(); |
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