1 // Copyright 2009 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --expose-gc 29 30 // Test that the clearing of object literal when normalizing objects 31 // works. In particular, test that the garbage collector handles the 32 // normalized object literals correctly. 33 function testLiteral(size) { 34 35 // Build object-literal string. 36 var literal = "var o = { "; 37 38 for (var i = 0; i < size; i++) { 39 if (i > 0) literal += ","; 40 literal += ("a" + i + ":" + i); 41 } 42 literal += "}"; 43 44 // Create the object literal. 45 eval(literal); 46 47 // Force normalization of the properties. 48 delete o["a" + (size - 1)]; 49 50 // Perform GC. 51 gc(); 52 53 // Check that the properties have the expected values. 54 for (var i = 0; i < size - 1; i++) { 55 assertEquals(i, o["a"+i]); 56 } 57 } 58 59 // The sizes to test. 60 var sizes = [0, 1, 2, 100, 200, 400, 1000]; 61 62 // Run the test. 63 for (var i = 0; i < sizes.length; i++) { 64 testLiteral(sizes[i]); 65 } 66 67
