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() { 10 var best_editor = "Emacs"; 11 return best_editor; 12 } 13 14 var exception = null; 15 var results = []; 16 var log = [] 17 18 function listener(event, exec_state, event_data, data) { 19 if (event != Debug.DebugEvent.Break) return; 20 try { 21 var source_line = event_data.sourceLineText(); 22 log.push(source_line); 23 if (source_line.indexOf("return") >= 0) { 24 switch (results.length) { 25 case 0: 26 break; 27 case 1: 28 Replace(BestEditor, "Emacs", "Eclipse"); 29 break; 30 case 2: 31 Replace(BestEditor, "Eclipse", "Vim"); 32 break; 33 default: 34 assertUnreachable(); 35 } 36 } 37 exec_state.prepareStep(Debug.StepAction.StepIn); 38 } catch (e) { 39 exception = e; 40 } 41 }; 42 43 function Replace(fun, original, patch) { 44 var script = Debug.findScript(fun); 45 if (fun.toString().indexOf(original) < 0) return; 46 var patch_pos = script.source.indexOf(original); 47 var change_log = []; 48 Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos, original.length, patch, change_log); 49 } 50 51 Debug.setListener(listener); 52 53 debugger; 54 results.push(BestEditor()); 55 results.push(BestEditor()); 56 results.push(BestEditor()); 57 Debug.setListener(null); 58 59 assertNull(exception); 60 assertEquals(["Emacs", "Eclipse", "Vim"], results); 61 print(JSON.stringify(log, 1)); 62 assertEquals([ 63 "debugger;", 64 "results.push(BestEditor());", 65 " var best_editor = \"Emacs\";", 66 " return best_editor;","}", 67 "results.push(BestEditor());", 68 "results.push(BestEditor());", 69 " var best_editor = \"Emacs\";", 70 " return best_editor;", 71 " var best_editor = \"Eclipse\";", 72 " return best_editor;","}", 73 "results.push(BestEditor());", 74 "results.push(BestEditor());", 75 " var best_editor = \"Eclipse\";", 76 " return best_editor;", 77 " var best_editor = \"Vim\";", 78 " return best_editor;", 79 "}","results.push(BestEditor());", 80 "Debug.setListener(null);" 81 ], log); 82
