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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  |  | 
|   6 var Debug = debug.Debug; |  | 
|   7  |  | 
|   8 var break_count = 0; |  | 
|   9 var exception = null; |  | 
|  10  |  | 
|  11 function listener(event, exec_state, event_data, data) { |  | 
|  12   if (event != Debug.DebugEvent.Break) return; |  | 
|  13   try { |  | 
|  14     break_count++; |  | 
|  15     var line = exec_state.frame(0).sourceLineText(); |  | 
|  16     print(line); |  | 
|  17     assertTrue(line.indexOf(`B${break_count}`) > 0); |  | 
|  18   } catch (e) { |  | 
|  19     exception = e; |  | 
|  20   } |  | 
|  21 } |  | 
|  22  |  | 
|  23  |  | 
|  24 function g() { |  | 
|  25   setbreaks(); |  | 
|  26   throw 1;  // B1 |  | 
|  27 } |  | 
|  28  |  | 
|  29 function f() { |  | 
|  30   try { |  | 
|  31     g(); |  | 
|  32   } catch (e) {} |  | 
|  33   return 2;  // B2 |  | 
|  34 } |  | 
|  35  |  | 
|  36 function setbreaks() { |  | 
|  37   Debug.setListener(listener); |  | 
|  38   Debug.setBreakPoint(g, 2, 0); |  | 
|  39   Debug.setBreakPoint(f, 4, 0); |  | 
|  40 } |  | 
|  41  |  | 
|  42 f(); |  | 
|  43  |  | 
|  44 assertEquals(2, break_count); |  | 
|  45 assertNull(exception); |  | 
|  46  |  | 
|  47 Debug.setListener(null); |  | 
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