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