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//
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7//       notice, this list of conditions and the following disclaimer.
8//     * Redistributions in binary form must reproduce the above
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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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17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Tests global loads from eval.
29
30var x = 27;
31
32function test() {
33  function g() {
34    assertEquals(27, eval('x'));
35    function h() {
36      // Shadow with local variable.
37      var x = 22;
38      assertEquals(22, eval('x'));
39      function i(x) {
40        // Shadow with parameter.
41        assertEquals(44, eval('x'));
42        function j() {
43          assertEquals(x, eval('x'));
44          // Shadow with function name.
45          function x() {
46            assertEquals(x, eval('x'));
47          }
48          x();
49        }
50        j();
51      }
52      i(44);
53    }
54    h();
55  }
56  g();
57}
58
59test();
60
61// Test loading of globals from deeply nested eval.  This code is a
62// bit complicated, but the complication is needed to check that the
63// code that loads the global variable accounts for the fact that the
64// global variable becomes shadowed by an eval-introduced variable.
65var result = 0;
66function testDeep(source, load, test) {
67  eval(source);
68  function f() {
69    var y = 23;
70    function g() {
71      var z = 25;
72      function h() {
73        eval(load);
74        eval(test);
75      }
76      h();
77    }
78    g();
79  }
80  f();
81}
82testDeep('1', 'result = x', 'assertEquals(27, result)');
83// Because of the eval-cache, the 'result = x' code gets reused.  This
84// time in a context where the 'x' variable has been shadowed.
85testDeep('var x = 1', 'result = x', 'assertEquals(1, result)');
86