regress-closures-with-eval.js revision 257744e915dfc84d6d07a6b2accf8402d9ffc708 
1// Copyright 2010 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
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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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19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Flags: --allow-natives-syntax
29
30// Verifies that closures in presence of eval work fine.
31function withEval(expr, filter) {
32  function walk(v) {
33    for (var i in v) {
34      for (var i in v) {}
35    }
36    %OptimizeFunctionOnNextCall(filter);
37    return filter(v);
38  }
39
40  var o = eval(expr);
41  return walk(o);
42}
43
44function makeTagInfoJSON(n) {
45  var a = new Array(n);
46  for (var i = 0; i < n; i++) a.push('{}');
47  return a;
48}
49
50var expr = '([' + makeTagInfoJSON(128).join(', ') + '])'
51
52for (var n = 0; n < 5; n++) {
53  withEval(expr, function(a) { return a; });
54}
55%OptimizeFunctionOnNextCall(withEval);
56withEval(expr, function(a) { return a; });