Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | // Copyright 2015 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() { |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 10 | return 'Emacs'; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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.Break) return; |
| 19 | try { |
| 20 | var source_line = event_data.sourceLineText(); |
| 21 | log.push(source_line); |
| 22 | if (source_line.indexOf("return") >= 0) { |
| 23 | switch (results.length) { |
| 24 | case 0: |
| 25 | break; |
| 26 | case 1: |
| 27 | Replace(BestEditor, "Emacs", "Eclipse"); |
| 28 | break; |
| 29 | case 2: |
| 30 | Replace(BestEditor, "Eclipse", "Vim"); |
| 31 | break; |
| 32 | default: |
| 33 | assertUnreachable(); |
| 34 | } |
| 35 | } |
| 36 | exec_state.prepareStep(Debug.StepAction.StepIn); |
| 37 | } catch (e) { |
| 38 | exception = e; |
| 39 | } |
| 40 | }; |
| 41 | |
| 42 | function Replace(fun, original, patch) { |
| 43 | var script = Debug.findScript(fun); |
| 44 | if (fun.toString().indexOf(original) < 0) return; |
| 45 | var patch_pos = script.source.indexOf(original); |
| 46 | var change_log = []; |
| 47 | Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos, original.length, patch, change_log); |
| 48 | } |
| 49 | |
| 50 | Debug.setListener(listener); |
| 51 | |
| 52 | debugger; |
| 53 | results.push(BestEditor()); |
| 54 | results.push(BestEditor()); |
| 55 | results.push(BestEditor()); |
| 56 | Debug.setListener(null); |
| 57 | |
| 58 | assertNull(exception); |
| 59 | assertEquals(["Emacs", "Eclipse", "Vim"], results); |
| 60 | print(JSON.stringify(log, 1)); |
| 61 | assertEquals([ |
| 62 | "debugger;", |
| 63 | "results.push(BestEditor());", |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 64 | " return 'Emacs';","}", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 65 | "results.push(BestEditor());", |
| 66 | "results.push(BestEditor());", |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 67 | " return 'Emacs';", |
| 68 | " return 'Eclipse';","}", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 69 | "results.push(BestEditor());", |
| 70 | "results.push(BestEditor());", |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 71 | " return 'Eclipse';", |
| 72 | " return 'Vim';", |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 73 | "}","results.push(BestEditor());", |
| 74 | "Debug.setListener(null);" |
| 75 | ], log); |