Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 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); |