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
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.
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.
28 // Flags: --expose-debug-as debug
29 // Get the Debug object exposed from the debug context global object.
32 // Simple debug event handler which first time hit will perform 1000 steps and
33 // second time hit will evaluate and store the value of "i". If requires that
34 // the global property "state" is initially zero.
38 function listener(event, exec_state, event_data, data) {
39 if (event == Debug.DebugEvent.Break) {
41 exec_state.prepareStep(Debug.StepAction.StepIn, 1000);
43 } else if (state == 1) {
44 result = exec_state.frame().evaluate("i").value();
45 // Clear the break point on line 2 if set.
47 Debug.clearBreakPoint(bp2);
53 // Add the debug event listener.
54 Debug.setListener(listener);
56 // Test debug event for break point.
59 for (i = 0; i < 1000; i++) { // Line 2.
64 // Set a breakpoint on the for statement (line 1).
65 bp1 = Debug.setBreakPoint(f, 1);
67 // Check that performing 1000 steps will make i 499.
71 assertEquals(499, result);
73 // Check that performing 1000 steps with a break point on the statement in the
74 // for loop (line 2) will only make i 0 as a real break point breaks even when
75 // multiple steps have been requested.
78 bp2 = Debug.setBreakPoint(f, 3);
80 assertEquals(0, result);
82 // Get rid of the debug event listener.
83 Debug.setListener(null);