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      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.
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     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
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     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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     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