1 // Copyright 2014 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.
5 // Flags: --expose-debug-as debug
6 // Tests stepping into through Array.prototype.forEach callbacks.
11 var expected_breaks = -1;
13 function listener(event, exec_state, event_data, data) {
15 if (event == Debug.DebugEvent.Break) {
16 assertTrue(exec_state.frameCount() != 0, "FAIL: Empty stack trace");
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);
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 + ".");
29 if (break_count !== expected_breaks) {
30 exec_state.prepareStep(Debug.StepAction.StepIn, 1);
39 Debug.setListener(listener);
42 [1,2].forEach(callback); // Break 1.
44 function callback(x) {
45 return x; // Break 2. // Break 4.
46 } // Break 3. // Break 5.
48 assertNull(exception); // Break 6.
49 assertEquals(expected_breaks, break_count);
51 Debug.setListener(null);