1// Copyright 2008 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: --expose-debug-as debug
29// Get the Debug object exposed from the debug context global object.
30Debug = debug.Debug
31
32// Simple debug event handler which counts the number of breaks hit and steps.
33var break_break_point_hit_count = 0;
34function listener(event, exec_state, event_data, data) {
35  if (event == Debug.DebugEvent.Break) {
36    break_break_point_hit_count++;
37    // Continue stepping until returned to bottom frame.
38    if (exec_state.frameCount() > 1) {
39      exec_state.prepareStep(Debug.StepAction.StepIn);
40    }
41  }
42};
43
44// Add the debug event listener.
45Debug.setListener(listener);
46
47// Use 'eval' to ensure that the call to print is through CodeStub CallFunction.
48// See Ia32CodeGenerator::VisitCall and Ia32CodeGenerator::CallWithArguments.
49function f() {
50  debugger;
51  eval('');
52  print('Hello, world!');
53};
54
55break_break_point_hit_count = 0;
56f();
57assertEquals(6, break_break_point_hit_count);
58
59// Use an inner function to ensure that the function call is through CodeStub
60// CallFunction see Ia32CodeGenerator::VisitCall and
61// Ia32CodeGenerator::CallWithArguments.
62function g() {
63  function h() {}
64  debugger;
65  h();
66};
67
68break_break_point_hit_count = 0;
69g();
70assertEquals(5, break_break_point_hit_count);
71
72
73// Use an inner function to ensure that the function call is through CodeStub
74// CallFunction.
75function testCallInExpreesion() {
76  function h() {}
77  debugger;
78  var x = 's' + h(10, 20);
79};
80
81break_break_point_hit_count = 0;
82testCallInExpreesion();
83assertEquals(5, break_break_point_hit_count);
84
85
86// Get rid of the debug event listener.
87Debug.setListener(null);
88