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1 /* |
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2 * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 /** |
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25 * JDK-8035312 push to frozen array must not increase length property |
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26 * |
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27 * @test |
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28 * @run |
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29 * @fork |
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30 * @option -Dnashorn.debug=true |
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31 */ |
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32 |
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33 function printArrayDataClass(x) { |
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34 if (typeof Debug !== 'undefined') { |
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35 print(Debug.getArrayDataClass(x)); |
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36 } |
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37 } |
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38 |
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39 function gpush(x, elem) { |
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40 try { |
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41 print("Pushing " + elem + " to " + x); |
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42 x.push(elem); |
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43 } catch (e) { |
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44 print("caught error" + e); |
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45 } |
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46 print("\tarray is now [" + x + "] length is = " + x.length); |
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47 print(); |
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48 printArrayDataClass(x); |
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49 } |
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50 |
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51 function gpop(x) { |
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52 try { |
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53 print("Popping from " + x); |
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54 x.pop(); |
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55 } catch (e) { |
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56 if (!(e instanceof TypeError)) { |
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57 print("e of wrong type " + e); |
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58 } |
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59 } |
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60 print("\tarray is now [" + x + "] length is = " + x.length); |
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61 print(); |
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62 printArrayDataClass(x); |
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63 } |
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64 |
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65 function checkArray(x) { |
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66 print(); |
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67 print(">>> Push test"); |
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68 |
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69 var olen = x.length; |
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70 gpush(x, 0); |
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71 |
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72 print("x.length === " + x.length + " (should be " + olen + ")"); |
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73 print("x[3] === " + x[3] + " (should be 0)"); |
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74 print("x[4] === " + x[4] + " (should be undefined)"); |
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75 |
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76 print(); |
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77 print(">>> Pop test"); |
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78 gpop(x); |
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79 gpop(x); |
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80 print("x.length === " + x.length + " (should be " + olen + ")"); |
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81 print("x === " + x); |
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82 |
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83 for (var i = 0 ; i < 5; i++) { |
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84 gpop(x); |
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85 } |
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86 |
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87 print("x.length === " + x.length + " (should be " + olen + ")"); |
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88 print("x === " + x); |
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89 } |
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90 |
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91 print("*** Freezing"); |
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92 var frozen = [1,2,3]; |
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93 Object.freeze(frozen); |
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94 checkArray(frozen); |
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95 printArrayDataClass(frozen); |
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96 |
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97 //so far so good |
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98 |
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99 print(); |
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100 print("*** Other length not writable issues"); |
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101 var lengthNotWritable = [1,2,3]; |
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102 Object.defineProperty(lengthNotWritable, "length", { writable: false }); |
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103 checkArray(lengthNotWritable); |
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104 printArrayDataClass(lengthNotWritable); |
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105 |
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106 function set(array, from, to, stride) { |
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107 //add three elements |
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108 for (var i = from; i < to; i+=stride) { |
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109 try { |
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110 print("Writing " + i); |
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111 array[i] = i; |
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112 printArrayDataClass(array); |
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113 } catch (e) { |
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114 print(e instanceof TypeError); |
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115 } |
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116 } |
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117 } |
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118 |
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119 //define empty array with non writable length |
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120 var arr = [1]; |
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121 Object.defineProperty(arr, "length", { writable: false }); |
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122 |
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123 var olen2 = arr.length; |
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124 |
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125 set(arr, 0, 3, 1); |
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126 |
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127 if (arr.length != olen2) { |
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128 throw new ("error: " + arr.length + " != " + olen2); |
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129 } |
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130 |
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131 print(); |
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132 print("array writing 0-3, with 1 stride, array = " + arr); |
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133 print("length = " + arr.length + ", but elements are: " + arr[0] + " " + arr[1] + " " + arr[2]); |
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134 print(); |
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135 |
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136 //do the same but sparse/deleted range |
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137 var arr2 = [1]; |
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138 Object.defineProperty(arr2, "length", { writable: false }); |
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139 |
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140 print("initial length = " + arr2.length); |
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141 var olen3 = arr2.length; |
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142 |
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143 set(arr2, 0, 30, 3); |
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144 |
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145 if (arr2.length != olen3) { |
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146 throw new ("error: " + arr2.length + " != " + olen3); |
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147 } |
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148 |
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149 print(); |
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150 var larger = 20; |
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151 print("array writing 0-" + larger + ", with 3 stride, array = " + arr2); |
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152 print("length = " + arr2.length + ", but elements are: " + arr2[0] + " " + arr2[1] + " " + arr2[2]); |
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153 |
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154 for (var i = 0; i < larger; i++) { |
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155 if (arr2[i] === undefined) { |
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156 continue; |
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157 } |
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158 print(arr2[i] + " has length " + arr2.length); |
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159 } |
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160 |
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161 print(); |
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162 var elem = 0x7fffffff - 10; |
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163 printArrayDataClass(arr2); |
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164 print("adding a new element high up in the array"); |
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165 print("length before element was added " + arr2.length); |
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166 print("putting sparse at " + elem); |
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167 arr2[elem] = "sparse"; |
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168 print("length after element was added " + arr2.length + " should be the same"); |
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169 printArrayDataClass(arr2); |
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170 |
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171 print(); |
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172 print("Printing arr2 - this will fail if length is > 28 and it is " + arr2.length); |
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173 print("arr2 = [" + arr2 + "]"); |
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174 print("new length that should not be writable = " + arr2.length); |
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175 print(arr2[elem] === "sparse"); |
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176 print(arr2[elem]); |
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177 for (var i = 0; i < larger; i++) { |
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178 print(arr2[i]); |
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179 } |
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180 for (var key in arr2) { |
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181 print(key + ":" + arr2[key]); |
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182 } |
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183 |
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184 //issues reported by sundar - generic setter doesn't go through push/pop bulkable |
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185 |
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186 function sundarExample2(arr, _writable) { |
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187 print("Checking if push works for bulkable non bulkable arrays - Setting length property not allowed"); |
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188 arr[0] = "bar"; |
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189 print(arr.length + " should be 1"); // should be 1 |
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190 print(arr[0] + " should be bar"); |
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191 print("["+ arr + "] should be [bar]"); |
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192 |
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193 // Object.defineProperty(arr, "length", { configurable: _writable }); |
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194 Object.defineProperty(arr, "length", { writable: _writable }); |
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195 arr[1] = "baz"; |
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196 |
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197 if (_writable) { |
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198 print(arr.length + " should be 2"); |
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199 print(arr[0] + " should be bar"); |
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200 print(arr[1] + " should be baz"); |
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201 print("["+ arr + "] should be [bar,baz]"); |
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202 } else { |
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203 print(arr.length + " should STILL be 1"); |
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204 print(arr[0] + " should be bar"); |
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205 print(arr[1] + " should be baz"); |
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206 print("["+ arr + "] should be [bar]"); |
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207 } |
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208 } |
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209 |
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210 var newArr1 = []; |
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211 sundarExample2(newArr1, false); |
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212 print(); |
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213 try { |
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214 sundarExample2(newArr1, true); |
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215 print("should not get here"); |
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216 } catch (e) { |
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217 if (!(e instanceof TypeError)) { |
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218 print("Wrong exception"); |
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219 } |
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220 print("got TypeError when redefining length, as expected") |
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221 } |
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222 print(); |
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223 |
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224 sundarExample2([], true); |
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225 print("Done"); |