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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 Debug = debug.Debug |
| 8 |
| 9 function BestEditor() { |
| 10 throw 'Emacs'; |
| 11 } |
| 12 |
| 13 var exception = null; |
| 14 var results = []; |
| 15 var log = [] |
| 16 |
| 17 function listener(event, exec_state, event_data, data) { |
| 18 if (event != Debug.DebugEvent.Exception) return; |
| 19 try { |
| 20 var source_line = event_data.sourceLineText(); |
| 21 print(source_line); |
| 22 log.push(source_line); |
| 23 switch (results.length) { |
| 24 case 0: |
| 25 Replace(BestEditor, "Emacs", "Eclipse"); |
| 26 break; |
| 27 case 1: |
| 28 Replace(BestEditor, "Eclipse", "Vim"); |
| 29 break; |
| 30 case 2: |
| 31 break; |
| 32 default: |
| 33 assertUnreachable(); |
| 34 } |
| 35 } catch (e) { |
| 36 exception = e; |
| 37 } |
| 38 }; |
| 39 |
| 40 function Replace(fun, original, patch) { |
| 41 var script = Debug.findScript(fun); |
| 42 if (fun.toString().indexOf(original) < 0) return; |
| 43 var patch_pos = script.source.indexOf(original); |
| 44 var change_log = []; |
| 45 Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos, original.lengt
h, patch, change_log); |
| 46 } |
| 47 |
| 48 Debug.setListener(listener); |
| 49 Debug.setBreakOnException(); |
| 50 |
| 51 for (var i = 0; i < 3; i++) { |
| 52 try { |
| 53 BestEditor(); |
| 54 } catch (e) { |
| 55 results.push(e); |
| 56 } |
| 57 } |
| 58 Debug.setListener(null); |
| 59 |
| 60 assertNull(exception); |
| 61 assertEquals(["Emacs", "Eclipse", "Vim"], results); |
| 62 print(JSON.stringify(log, 1)); |
| 63 assertEquals([ |
| 64 " throw 'Emacs';", |
| 65 " throw 'Eclipse';", |
| 66 " throw 'Vim';", |
| 67 ], log); |
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