[debug-wrapper] LiveEdit, frame.restart(), breakpoints

test/mjsunit/debug-liveedit-exceptions.js

-// Copyright 2016 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Flags: --expose-debug-as debug
-
-Debug = debug.Debug
-
-function BestEditor() {
-  throw 'Emacs';
-}
-
-var exception = null;
-var results = [];
-var log = []
-
-function listener(event, exec_state, event_data, data) {
-  if (event != Debug.DebugEvent.Exception) return;
-  try {
-    var source_line = event_data.sourceLineText();
-    print(source_line);
-    log.push(source_line);
-    switch (results.length) {
-      case 0:
-        Replace(BestEditor, "Emacs", "Eclipse");
-        break;
-      case 1:
-        Replace(BestEditor, "Eclipse", "Vim");
-        break;
-      case 2:
-        break;
-      default:
-        assertUnreachable();
-    }
-  } catch (e) {
-    exception = e;
-  }
-};
-
-function Replace(fun, original, patch) {
-  var script = Debug.findScript(fun);
-  if (fun.toString().indexOf(original) < 0) return;
-  var patch_pos = script.source.indexOf(original);
-  var change_log = [];
-  Debug.LiveEdit.TestApi.ApplySingleChunkPatch(script, patch_pos, original.length, patch, change_log);
-}
-
-Debug.setListener(listener);
-Debug.setBreakOnException();
-
-for (var i = 0; i < 3; i++) {
-  try {
-    BestEditor();
-  } catch (e) {
-    results.push(e);
-  }
-}
-Debug.setListener(null);
-
-assertNull(exception);
-assertEquals(["Emacs", "Eclipse", "Vim"], results);
-print(JSON.stringify(log, 1));
-assertEquals([
-  "  throw 'Emacs';",
-  "  throw 'Eclipse';",
-  "  throw 'Vim';",
-], log);