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1 // Copyright 2015 the V8 project authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // Flags: --expose-debug-as debug --allow-natives-syntax --noalways-opt | |
6 // Tests stepping into through Promises. | |
7 | |
8 Debug = debug.Debug | |
9 var exception = null; | |
10 var break_count = 0; | |
11 var expected_breaks = -1; | |
12 | |
13 function listener(event, exec_state, event_data, data) { | |
14 try { | |
15 if (event == Debug.DebugEvent.Break) { | |
16 assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace"); | |
17 if (!break_count) { | |
18 // Count number of expected breakpoints in this source file. | |
19 var source_text = exec_state.frame(0).func().script().source(); | |
20 expected_breaks = source_text.match(/\/\/\s*Break\s+\d+\./g).length; | |
21 print("Expected breaks: " + expected_breaks); | |
22 } | |
23 var source = exec_state.frame(0).sourceLineText(); | |
24 print("paused at: " + source); | |
25 assertTrue(source.indexOf("// Break " + break_count + ".") > 0, | |
26 "Unexpected pause at: " + source + "\n" + | |
27 "Expected: // Break " + break_count + "."); | |
28 ++break_count; | |
29 if (break_count !== expected_breaks) { | |
30 exec_state.prepareStep(Debug.StepAction.StepIn); | |
31 } | |
32 } | |
33 } catch(e) { | |
34 exception = e; | |
35 print(e, e.stack); | |
36 } | |
37 }; | |
38 | |
39 Debug.setListener(listener); | |
40 | |
41 Promise.resolve(42) | |
42 .then( | |
43 function f0() { | |
44 debugger; // Break 0. | |
45 } // Break 1. | |
46 ) | |
47 .then(callback) | |
48 .then(callback.bind(null)) | |
49 .then(Object) | |
50 .then(callback.bind(null).bind(null)) | |
51 .then(finalize) | |
52 .catch(function(err) { | |
53 %AbortJS("FAIL: " + err); | |
54 }); | |
55 | |
56 function callback(x) { | |
57 return x; // Break 2. // Break 4. // Break 6. | |
58 } // Break 3. // Break 5. // Break 7. | |
59 | |
60 function finalize() { | |
61 assertNull(exception); // Break 8. | |
62 assertEquals(expected_breaks, break_count); | |
63 | |
64 Debug.setListener(null); | |
65 } | |
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