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| 1 // Copyright 2016 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 | |
| 6 | |
| 7 var Debug = debug.Debug; | |
| 8 var break_count = 0; | |
| 9 var exception_count = 0; | |
| 10 | |
| 11 function assertCount(expected_breaks, expected_exceptions) { | |
| 12 assertEquals(expected_breaks, break_count); | |
| 13 assertEquals(expected_exceptions, exception_count); | |
| 14 } | |
| 15 | |
| 16 function listener(event, exec_state, event_data, data) { | |
| 17 if (event == Debug.DebugEvent.Break) { | |
| 18 break_count++; | |
| 19 } else if (event == Debug.DebugEvent.Exception) { | |
| 20 exception_count++; | |
| 21 } | |
| 22 } | |
| 23 | |
| 24 function f(x) { | |
| 25 debugger; | |
| 26 return x + 1; | |
| 27 } | |
| 28 | |
| 29 function g(x) { | |
| 30 try { | |
| 31 throw x; | |
| 32 } catch (e) { | |
| 33 } | |
| 34 } | |
| 35 | |
| 36 function h(x) { | |
| 37 var a = undefined; | |
| 38 try { | |
| 39 var x = a(); | |
| 40 } catch (e) { | |
| 41 } | |
| 42 } | |
| 43 | |
| 44 Debug.setListener(listener); | |
| 45 | |
| 46 assertCount(0, 0); | |
| 47 f(0); | |
| 48 assertCount(1, 0); | |
| 49 g(0); | |
| 50 assertCount(1, 0); | |
| 51 | |
| 52 Debug.setBreakOnException(); | |
| 53 f(0); | |
| 54 assertCount(2, 0); | |
| 55 g(0); | |
| 56 assertCount(2, 1); | |
| 57 | |
| 58 Debug.setBreakPoint(f, 1, 0, "x == 1"); | |
| 59 f(1); | |
| 60 assertCount(3, 1); | |
| 61 f(2); | |
| 62 assertCount(3, 1); | |
| 63 f(1); | |
| 64 assertCount(4, 1); | |
| 65 | |
| 66 Debug.setBreakPoint(f, 1, 0, "x > 0"); | |
| 67 f(1); | |
| 68 assertCount(5, 1); | |
| 69 f(0); | |
| 70 assertCount(5, 1); | |
| 71 | |
| 72 Debug.setBreakPoint(g, 2, 0, "1 == 2"); | |
| 73 g(1); | |
| 74 assertCount(5, 1); | |
| 75 | |
| 76 Debug.setBreakPoint(g, 2, 0, "x == 1"); | |
| 77 g(1); | |
| 78 assertCount(6, 2); | |
| 79 g(2); | |
| 80 assertCount(6, 2); | |
| 81 g(1); | |
| 82 assertCount(7, 3); | |
| 83 | |
| 84 Debug.setBreakPoint(g, 2, 0, "x > 0"); | |
| 85 g(1); | |
| 86 assertCount(8, 4); | |
| 87 g(0); | |
| 88 assertCount(8, 4); | |
| 89 | |
| 90 h(0); | |
| 91 assertCount(8, 5); | |
| 92 Debug.setBreakPoint(h, 3, 0, "x > 0"); | |
| 93 h(1); | |
| 94 assertCount(9, 6); | |
| 95 h(0); | |
| 96 assertCount(9, 6); | |
| 97 | |
| 98 Debug.clearBreakOnException(); | |
| 99 Debug.setListener(null); | |
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