1// Copyright 2011 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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5//
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27
28// Flags: --expose-debug-as debug --allow-natives-syntax
29
30// This test tests that deoptimization due to debug breaks works for
31// inlined functions where the full-code is generated before the
32// debugger is attached.
33//
34//See http://code.google.com/p/chromium/issues/detail?id=105375
35
36// Get the Debug object exposed from the debug context global object.
37Debug = debug.Debug;
38
39var count = 0;
40var break_count = 0;
41
42// Debug event listener which sets a breakpoint first time it is hit
43// and otherwise counts break points hit and checks that the expected
44// state is reached.
45function listener(event, exec_state, event_data, data) {
46  if (event == Debug.DebugEvent.Break) {
47    break_count++;
48    if (break_count == 1) {
49      Debug.setBreakPoint(g, 3);
50
51      for (var i = 0; i < exec_state.frameCount(); i++) {
52        var frame = exec_state.frame(i);
53        // When function f is optimized (1 means YES, see runtime.cc) we
54        // expect an optimized frame for f and g.
55        if (%GetOptimizationStatus(f) == 1) {
56          if (i == 1) {
57            assertTrue(frame.isOptimizedFrame());
58            assertTrue(frame.isInlinedFrame());
59            assertEquals(4 - i, frame.inlinedFrameIndex());
60          } else if (i == 2) {
61            assertTrue(frame.isOptimizedFrame());
62            assertFalse(frame.isInlinedFrame());
63          } else {
64            assertFalse(frame.isOptimizedFrame());
65            assertFalse(frame.isInlinedFrame());
66          }
67        }
68      }
69    }
70  }
71}
72
73function f() {
74  g();
75}
76
77function g() {
78  count++;
79  h();
80  var b = 1;  // Break point is set here.
81}
82
83function h() {
84  debugger;
85}
86
87f();f();f();
88%OptimizeFunctionOnNextCall(f);
89f();
90
91// Add the debug event listener.
92Debug.setListener(listener);
93
94f();
95
96assertEquals(5, count);
97assertEquals(2, break_count);
98
99// Get rid of the debug event listener.
100Debug.setListener(null);
101