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27
28// Regression test cases for issue 1178598.
29
30// Make sure const-initialization doesn't conflict
31// with heap-allocated locals for catch variables.
32var value = (function(){
33  try { } catch(e) {
34    // Force the 'e' variable to be heap-allocated
35    // by capturing it in a function closure.
36    (function() { e; });
37  }
38  // Make sure the two definitions of 'e' do
39  // not conflict in any way.
40  eval("const e=1");
41  return e;
42})();
43
44assertEquals(1, value);
45
46
47
48// Make sure that catch variables can be accessed using eval.
49var value = (function() {
50  var result;
51  try {
52    throw 42;
53  } catch (e) {
54    result = eval("e");
55  }
56  return result;
57})();
58
59assertEquals(42, value);
60
61
62
63// Make sure that heap-allocated locals for catch variables aren't
64// visible outside the catch scope and that they are visible from
65// within.
66var value = (function() {
67  var result;
68  try {
69    throw 87;
70  } catch(e) {
71    // Force the 'e' variable to be heap-allocated
72    // by capturing it in a function closure.
73    (function() { e; });
74    result = eval("e");
75  }
76
77  // Expect accessing 'e' to yield an exception because
78  // it is not defined in the current scope.
79  try {
80    eval("e");
81    assertTrue(false);  // should throw exception
82  } catch(exception) {
83    assertTrue(exception instanceof ReferenceError);
84    return result;
85  }
86})();
87
88assertEquals(87, value);
89