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 return '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.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());", 64 " return 'Emacs';","}", 65 "results.push(BestEditor());", 66 "results.push(BestEditor());", 67 " return 'Emacs';", 68 " return 'Eclipse';","}", 69 "results.push(BestEditor());", 70 "results.push(BestEditor());", 71 " return 'Eclipse';", 72 " return 'Vim';", 73 "}","results.push(BestEditor());", 74 "Debug.setListener(null);" 75 ], log); 76
