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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. | |
30 Debug = debug.Debug | |
31 | |
32 // Tests how debugger can step over not necessarily in the top frame. | |
33 | |
34 // Simple 3 functions, that protocol their execution state in global | |
35 // variable state. | |
36 var state; | |
37 | |
38 function f() { | |
39 var a = 1978; | |
40 for (state[2] = 0; state[2] < 3; state[2]++) { | |
41 void String(a); | |
42 } | |
43 } | |
44 function g() { | |
45 for (state[1] = 0; state[1] < 3; state[1]++) { | |
46 f(); | |
47 } | |
48 } | |
49 function h() { | |
50 state = [-1, -1, -1]; | |
51 for (state[0] = 0; state[0] < 3; state[0]++) { | |
52 g(); | |
53 } | |
54 } | |
55 | |
56 function TestCase(expected_final_state) { | |
57 var listener_exception = null; | |
58 var state_snapshot; | |
59 var listener_state; | |
60 var bp; | |
61 | |
62 function listener(event, exec_state, event_data, data) { | |
63 print("Here ("+event+"/"+listener_state+"): " + | |
64 exec_state.frame(0).sourceLineText()); | |
65 try { | |
66 if (event == Debug.DebugEvent.Break) { | |
67 if (listener_state == 0) { | |
68 Debug.clearBreakPoint(bp); | |
69 exec_state.prepareStep(Debug.StepAction.StepNext); | |
70 listener_state = 1; | |
71 } else if (listener_state == 1) { | |
72 state_snapshot = String(state); | |
73 print("State: " + state_snapshot); | |
74 Debug.setListener(null); | |
75 listener_state = 2; | |
76 } | |
77 } | |
78 } catch (e) { | |
79 listener_exception = e; | |
80 } | |
81 } | |
82 | |
83 | |
84 // Add the debug event listener. | |
85 listener_state = 0; | |
86 Debug.setListener(listener); | |
87 bp = Debug.setBreakPoint(f, 1); | |
88 | |
89 h(); | |
90 Debug.setListener(null); | |
91 if (listener_exception !== null) { | |
92 print("Exception caught: " + listener_exception); | |
93 assertUnreachable(); | |
94 } | |
95 | |
96 assertEquals(expected_final_state, state_snapshot); | |
97 } | |
98 | |
99 | |
100 // Warm-up -- make sure all is compiled and ready for breakpoint. | |
101 h(); | |
102 | |
103 TestCase("0,0,-1"); | |
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