1// Copyright 2011 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: --builtins-in-stack-traces
29
30
31// Poisonous object that throws a reference error if attempted converted to
32// a primitive values.
33var thrower = { valueOf: function() { FAIL; },
34                toString: function() { FAIL; } };
35
36// Tests that a native constructor function is included in the
37// stack trace.
38function testTraceNativeConstructor(nativeFunc) {
39  var nativeFuncName = nativeFunc.name;
40  try {
41    new nativeFunc(thrower);
42    assertUnreachable(nativeFuncName);
43  } catch (e) {
44    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
45  }
46}
47
48// Tests that a native conversion function is included in the
49// stack trace.
50function testTraceNativeConversion(nativeFunc) {
51  var nativeFuncName = nativeFunc.name;
52  try {
53    nativeFunc(thrower);
54    assertUnreachable(nativeFuncName);
55  } catch (e) {
56    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
57  }
58}
59
60
61function testNotOmittedBuiltin(throwing, included) {
62  try {
63    throwing();
64    assertUnreachable(included);
65  } catch (e) {
66    assertTrue(e.stack.indexOf(included) >= 0, included);
67  }
68}
69
70
71testTraceNativeConversion(String);  // Does ToString on argument.
72testTraceNativeConversion(Number);  // Does ToNumber on argument.
73testTraceNativeConversion(RegExp);  // Does ToString on argument.
74
75testTraceNativeConstructor(String);  // Does ToString on argument.
76testTraceNativeConstructor(Number);  // Does ToNumber on argument.
77testTraceNativeConstructor(RegExp);  // Does ToString on argument.
78testTraceNativeConstructor(Date);    // Does ToNumber on argument.
79
80// QuickSort has builtins object as receiver, and is non-native
81// builtin. Should not be omitted with the --builtins-in-stack-traces flag.
82testNotOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
83                                                     (b < a) - (a < b); });
84                      }, "QuickSort");
85
86// Not omitted even though ADD from runtime.js is a non-native builtin.
87testNotOmittedBuiltin(function(){ thrower + 2; }, "ADD");