Remove d8's interactive Javascript debugger.

src/d8.js

Index: src/d8.js
diff --git a/src/d8.js b/src/d8.js
index 2b927aface10e732a2bdf7e1dee8c090ec9c417f..65646f7bf2f0b03050368ab762665f73c47b2adb 100644
--- a/src/d8.js
+++ b/src/d8.js
@@ -11,10 +11,6 @@ String.prototype.startsWith = function (str) {
   return this.substr(0, str.length) == str;
 };
 
-function log10(num) {
-  return Math.log(num)/Math.log(10);
-}
-
 function ToInspectableObject(obj) {
   if (!obj && typeof obj === 'object') {
     return UNDEFINED;
@@ -53,1914 +49,6 @@ function GetCompletions(global, last, full) {
   return result;
 }
 
-
-// Global object holding debugger related constants and state.
-var Debug = {};
-
-
-// Debug events which can occour in the V8 JavaScript engine. These originate
-// from the API include file v8-debug.h.
-Debug.DebugEvent = { Break: 1,
-                     Exception: 2,
-                     NewFunction: 3,
-                     BeforeCompile: 4,
-                     AfterCompile: 5 };
-
-
-// The different types of scripts matching enum ScriptType in objects.h.
-Debug.ScriptType = { Native: 0,
-                     Extension: 1,
-                     Normal: 2 };
-
-
-// The different types of script compilations matching enum
-// Script::CompilationType in objects.h.
-Debug.ScriptCompilationType = { Host: 0,
-                                Eval: 1,
-                                JSON: 2 };
-
-
-// The different types of scopes matching constants runtime.cc.
-Debug.ScopeType = { Global: 0,
-                    Local: 1,
-                    With: 2,
-                    Closure: 3,
-                    Catch: 4,
-                    Block: 5 };
-
-
-// Current debug state.
-var kNoFrame = -1;
-Debug.State = {
-  currentFrame: kNoFrame,
-  displaySourceStartLine: -1,
-  displaySourceEndLine: -1,
-  currentSourceLine: -1
-};
-var trace_compile = false;  // Tracing all compile events?
-var trace_debug_json = false; // Tracing all debug json packets?
-var last_cmd = '';
-var repeat_cmd_line = '';
-var is_running = true;
-// Global variable used to store whether a handle was requested.
-var lookup_handle = null;
-
-// Copied from debug-delay.js.  This is needed below:
-function ScriptTypeFlag(type) {
-  return (1 << type);
-}
-
-
-// Process a debugger JSON message into a display text and a running status.
-// This function returns an object with properties "text" and "running" holding
-// this information.
-function DebugMessageDetails(message) {
-  if (trace_debug_json) {
-    print("received: '" + message + "'");
-  }
-  // Convert the JSON string to an object.
-  var response = new ProtocolPackage(message);
-  is_running = response.running();
-
-  if (response.type() == 'event') {
-    return DebugEventDetails(response);
-  } else {
-    return DebugResponseDetails(response);
-  }
-}
-
-function DebugEventDetails(response) {
-  var details = {text:'', running:false};
-
-  // Get the running state.
-  details.running = response.running();
-
-  var body = response.body();
-  var result = '';
-  switch (response.event()) {
-    case 'break':
-      if (body.breakpoints) {
-        result += 'breakpoint';
-        if (body.breakpoints.length > 1) {
-          result += 's';
-        }
-        result += ' #';
-        for (var i = 0; i < body.breakpoints.length; i++) {
-          if (i > 0) {
-            result += ', #';
-          }
-          result += body.breakpoints[i];
-        }
-      } else {
-        result += 'break';
-      }
-      result += ' in ';
-      result += body.invocationText;
-      result += ', ';
-      result += SourceInfo(body);
-      result += '\n';
-      result += SourceUnderline(body.sourceLineText, body.sourceColumn);
-      Debug.State.currentSourceLine = body.sourceLine;
-      Debug.State.displaySourceStartLine = -1;
-      Debug.State.displaySourceEndLine = -1;
-      Debug.State.currentFrame = 0;
-      details.text = result;
-      break;
-
-    case 'exception':
-      if (body.uncaught) {
-        result += 'Uncaught: ';
-      } else {
-        result += 'Exception: ';
-      }
-      result += '"';
-      result += body.exception.text;
-      result += '"';
-      if (body.sourceLine >= 0) {
-        result += ', ';
-        result += SourceInfo(body);
-        result += '\n';
-        result += SourceUnderline(body.sourceLineText, body.sourceColumn);
-        Debug.State.currentSourceLine = body.sourceLine;
-        Debug.State.displaySourceStartLine = -1;
-        Debug.State.displaySourceEndLine = -1;
-        Debug.State.currentFrame = 0;
-      } else {
-        result += ' (empty stack)';
-        Debug.State.currentSourceLine = -1;
-        Debug.State.displaySourceStartLine = -1;
-        Debug.State.displaySourceEndLine = -1;
-        Debug.State.currentFrame = kNoFrame;
-      }
-      details.text = result;
-      break;
-
-    case 'afterCompile':
-      if (trace_compile) {
-        result = 'Source ' + body.script.name + ' compiled:\n';
-        var source = body.script.source;
-        if (!(source[source.length - 1] == '\n')) {
-          result += source;
-        } else {
-          result += source.substring(0, source.length - 1);
-        }
-      }
-      details.text = result;
-      break;
-
-    default:
-      details.text = 'Unknown debug event ' + response.event();
-  }
-
-  return details;
-}
-
-
-function SourceInfo(body) {
-  var result = '';
-
-  if (body.script) {
-    if (body.script.name) {
-      result += body.script.name;
-    } else {
-      result += '[unnamed]';
-    }
-  }
-  result += ' line ';
-  result += body.sourceLine + 1;
-  result += ' column ';
-  result += body.sourceColumn + 1;
-
-  return result;
-}
-
-
-function SourceUnderline(source_text, position) {
-  if (!source_text) {
-    return;
-  }
-
-  // Create an underline with a caret pointing to the source position. If the
-  // source contains a tab character the underline will have a tab character in
-  // the same place otherwise the underline will have a space character.
-  var underline = '';
-  for (var i = 0; i < position; i++) {
-    if (source_text[i] == '\t') {
-      underline += '\t';
-    } else {
-      underline += ' ';
-    }
-  }
-  underline += '^';
-
-  // Return the source line text with the underline beneath.
-  return source_text + '\n' + underline;
-}
-
-
-// Converts a text command to a JSON request.
-function DebugCommandToJSONRequest(cmd_line) {
-  var result = new DebugRequest(cmd_line).JSONRequest();
-  if (trace_debug_json && result) {
-    print("sending: '" + result + "'");
-  }
-  return result;
-}
-
-
-function DebugRequest(cmd_line) {
-  // If the very first character is a { assume that a JSON request have been
-  // entered as a command. Converting that to a JSON request is trivial.
-  if (cmd_line && cmd_line.length > 0 && cmd_line.charAt(0) == '{') {
-    this.request_ = cmd_line;
-    return;
-  }
-
-  // Check for a simple carriage return to repeat the last command:
-  var is_repeating = false;
-  if (cmd_line == '\n') {
-    if (is_running) {
-      cmd_line = 'break'; // Not in debugger mode, break with a frame request.
-    } else {
-      cmd_line = repeat_cmd_line; // use command to repeat.
-      is_repeating = true;
-    }
-  }
-  if (!is_running) { // Only save the command if in debugger mode.
-    repeat_cmd_line = cmd_line;   // save last command.
-  }
-
-  // Trim string for leading and trailing whitespace.
-  cmd_line = cmd_line.replace(/^\s+|\s+$/g, '');
-
-  // Find the command.
-  var pos = cmd_line.indexOf(' ');
-  var cmd;
-  var args;
-  if (pos == -1) {
-    cmd = cmd_line;
-    args = '';
-  } else {
-    cmd = cmd_line.slice(0, pos);
-    args = cmd_line.slice(pos).replace(/^\s+|\s+$/g, '');
-  }
-
-  if ((cmd === undefined) || !cmd) {
-    this.request_ = UNDEFINED;
-    return;
-  }
-
-  last_cmd = cmd;
-
-  // Switch on command.
-  switch (cmd) {
-    case 'continue':
-    case 'c':
-      this.request_ = this.continueCommandToJSONRequest_(args);
-      break;
-
-    case 'step':
-    case 's':
-      this.request_ = this.stepCommandToJSONRequest_(args, 'in');
-      break;
-
-    case 'stepi':
-    case 'si':
-      this.request_ = this.stepCommandToJSONRequest_(args, 'min');
-      break;
-
-    case 'next':
-    case 'n':
-      this.request_ = this.stepCommandToJSONRequest_(args, 'next');
-      break;
-
-    case 'finish':
-    case 'fin':
-      this.request_ = this.stepCommandToJSONRequest_(args, 'out');
-      break;
-
-    case 'backtrace':
-    case 'bt':
-      this.request_ = this.backtraceCommandToJSONRequest_(args);
-      break;
-
-    case 'frame':
-    case 'f':
-      this.request_ = this.frameCommandToJSONRequest_(args);
-      break;
-
-    case 'scopes':
-      this.request_ = this.scopesCommandToJSONRequest_(args);
-      break;
-
-    case 'scope':
-      this.request_ = this.scopeCommandToJSONRequest_(args);
-      break;
-
-    case 'disconnect':
-    case 'exit':
-    case 'quit':
-      this.request_ = this.disconnectCommandToJSONRequest_(args);
-      break;
-
-    case 'up':
-      this.request_ =
-          this.frameCommandToJSONRequest_('' +
-                                          (Debug.State.currentFrame + 1));
-      break;
-
-    case 'down':
-    case 'do':
-      this.request_ =
-          this.frameCommandToJSONRequest_('' +
-                                          (Debug.State.currentFrame - 1));
-      break;
-
-    case 'set':
-    case 'print':
-    case 'p':
-      this.request_ = this.printCommandToJSONRequest_(args);
-      break;
-
-    case 'dir':
-      this.request_ = this.dirCommandToJSONRequest_(args);
-      break;
-
-    case 'references':
-      this.request_ = this.referencesCommandToJSONRequest_(args);
-      break;
-
-    case 'instances':
-      this.request_ = this.instancesCommandToJSONRequest_(args);
-      break;
-
-    case 'list':
-    case 'l':
-      this.request_ = this.listCommandToJSONRequest_(args);
-      break;
-    case 'source':
-      this.request_ = this.sourceCommandToJSONRequest_(args);
-      break;
-
-    case 'scripts':
-    case 'script':
-    case 'scr':
-      this.request_ = this.scriptsCommandToJSONRequest_(args);
-      break;
-
-    case 'break':
-    case 'b':
-      this.request_ = this.breakCommandToJSONRequest_(args);
-      break;
-
-    case 'breakpoints':
-    case 'bb':
-      this.request_ = this.breakpointsCommandToJSONRequest_(args);
-      break;
-
-    case 'clear':
-    case 'delete':
-    case 'd':
-      this.request_ = this.clearCommandToJSONRequest_(args);
-      break;
-
-    case 'threads':
-      this.request_ = this.threadsCommandToJSONRequest_(args);
-      break;
-
-    case 'cond':
-      this.request_ = this.changeBreakpointCommandToJSONRequest_(args, 'cond');
-      break;
-
-    case 'enable':
-    case 'en':
-      this.request_ =
-          this.changeBreakpointCommandToJSONRequest_(args, 'enable');
-      break;
-
-    case 'disable':
-    case 'dis':
-      this.request_ =
-          this.changeBreakpointCommandToJSONRequest_(args, 'disable');
-      break;
-
-    case 'ignore':
-      this.request_ =
-          this.changeBreakpointCommandToJSONRequest_(args, 'ignore');
-      break;
-
-    case 'info':
-    case 'inf':
-      this.request_ = this.infoCommandToJSONRequest_(args);
-      break;
-
-    case 'flags':
-      this.request_ = this.v8FlagsToJSONRequest_(args);
-      break;
-
-    case 'gc':
-      this.request_ = this.gcToJSONRequest_(args);
-      break;
-
-    case 'trace':
-    case 'tr':
-      // Return undefined to indicate command handled internally (no JSON).
-      this.request_ = UNDEFINED;
-      this.traceCommand_(args);
-      break;
-
-    case 'help':
-    case '?':
-      this.helpCommand_(args);
-      // Return undefined to indicate command handled internally (no JSON).
-      this.request_ = UNDEFINED;
-      break;
-
-    default:
-      throw new Error('Unknown command "' + cmd + '"');
-  }
-}
-
-DebugRequest.prototype.JSONRequest = function() {
-  return this.request_;
-};
-
-
-function RequestPacket(command) {
-  this.seq = 0;
-  this.type = 'request';
-  this.command = command;
-}
-
-
-RequestPacket.prototype.toJSONProtocol = function() {
-  // Encode the protocol header.
-  var json = '{';
-  json += '"seq":' + this.seq;
-  json += ',"type":"' + this.type + '"';
-  if (this.command) {
-    json += ',"command":' + JSON.stringify(this.command);
-  }
-  if (this.arguments) {
-    json += ',"arguments":';
-    // Encode the arguments part.
-    if (this.arguments.toJSONProtocol) {
-      json += this.arguments.toJSONProtocol();
-    } else {
-      json += JSON.stringify(this.arguments);
-    }
-  }
-  json += '}';
-  return json;
-};
-
-
-DebugRequest.prototype.createRequest = function(command) {
-  return new RequestPacket(command);
-};
-
-
-// Create a JSON request for the evaluation command.
-DebugRequest.prototype.makeEvaluateJSONRequest_ = function(expression) {
-  lookup_handle = null;
-
-  // Check if the expression is a handle id in the form #<handle>#.
-  var handle_match = expression.match(/^#([0-9]*)#$/);
-  if (handle_match) {
-    // Remember the handle requested in a global variable.
-    lookup_handle = parseInt(handle_match[1]);
-    // Build a lookup request.
-    var request = this.createRequest('lookup');
-    request.arguments = {};
-    request.arguments.handles = [ lookup_handle ];
-    return request.toJSONProtocol();
-  } else {
-    // Build an evaluate request.
-    var request = this.createRequest('evaluate');
-    request.arguments = {};
-    request.arguments.expression = expression;
-    // Request a global evaluation if there is no current frame.
-    if (Debug.State.currentFrame == kNoFrame) {
-      request.arguments.global = true;
-    }
-    return request.toJSONProtocol();
-  }
-};
-
-
-// Create a JSON request for the references/instances command.
-DebugRequest.prototype.makeReferencesJSONRequest_ = function(handle, type) {
-  // Build a references request.
-  var handle_match = handle.match(/^#([0-9]*)#$/);
-  if (handle_match) {
-    var request = this.createRequest('references');
-    request.arguments = {};
-    request.arguments.type = type;
-    request.arguments.handle = parseInt(handle_match[1]);
-    return request.toJSONProtocol();
-  } else {
-    throw new Error('Invalid object id.');
-  }
-};
-
-
-// Create a JSON request for the continue command.
-DebugRequest.prototype.continueCommandToJSONRequest_ = function(args) {
-  var request = this.createRequest('continue');
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the step command.
-DebugRequest.prototype.stepCommandToJSONRequest_ = function(args, type) {
-  // Requesting a step is through the continue command with additional
-  // arguments.
-  var request = this.createRequest('continue');
-  request.arguments = {};
-
-  // Process arguments if any.
-
-  // Only process args if the command is 'step' which is indicated by type being
-  // set to 'in'.  For all other commands, ignore the args.
-  if (args && args.length > 0) {
-    args = args.split(/\s+/g);
-
-    if (args.length > 2) {
-      throw new Error('Invalid step arguments.');
-    }
-
-    if (args.length > 0) {
-      // Check if we have a gdb stype step command.  If so, the 1st arg would
-      // be the step count.  If it's not a number, then assume that we're
-      // parsing for the legacy v8 step command.
-      var stepcount = Number(args[0]);
-      if (stepcount == Number.NaN) {
-        // No step count at arg 1.  Process as legacy d8 step command:
-        if (args.length == 2) {
-          var stepcount = parseInt(args[1]);
-          if (isNaN(stepcount) || stepcount <= 0) {
-            throw new Error('Invalid step count argument "' + args[0] + '".');
-          }
-          request.arguments.stepcount = stepcount;
-        }
-
-        // Get the step action.
-        switch (args[0]) {
-          case 'in':
-          case 'i':
-            request.arguments.stepaction = 'in';
-            break;
-
-          case 'min':
-          case 'm':
-            request.arguments.stepaction = 'min';
-            break;
-
-          case 'next':
-          case 'n':
-            request.arguments.stepaction = 'next';
-            break;
-
-          case 'out':
-          case 'o':
-            request.arguments.stepaction = 'out';
-            break;
-
-          default:
-            throw new Error('Invalid step argument "' + args[0] + '".');
-        }
-
-      } else {
-        // gdb style step commands:
-        request.arguments.stepaction = type;
-        request.arguments.stepcount = stepcount;
-      }
-    }
-  } else {
-    // Default is step of the specified type.
-    request.arguments.stepaction = type;
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the backtrace command.
-DebugRequest.prototype.backtraceCommandToJSONRequest_ = function(args) {
-  // Build a backtrace request from the text command.
-  var request = this.createRequest('backtrace');
-
-  // Default is to show top 10 frames.
-  request.arguments = {};
-  request.arguments.fromFrame = 0;
-  request.arguments.toFrame = 10;
-
-  args = args.split(/\s*[ ]+\s*/g);
-  if (args.length == 1 && args[0].length > 0) {
-    var frameCount = parseInt(args[0]);
-    if (frameCount > 0) {
-      // Show top frames.
-      request.arguments.fromFrame = 0;
-      request.arguments.toFrame = frameCount;
-    } else {
-      // Show bottom frames.
-      request.arguments.fromFrame = 0;
-      request.arguments.toFrame = -frameCount;
-      request.arguments.bottom = true;
-    }
-  } else if (args.length == 2) {
-    var fromFrame = parseInt(args[0]);
-    var toFrame = parseInt(args[1]);
-    if (isNaN(fromFrame) || fromFrame < 0) {
-      throw new Error('Invalid start frame argument "' + args[0] + '".');
-    }
-    if (isNaN(toFrame) || toFrame < 0) {
-      throw new Error('Invalid end frame argument "' + args[1] + '".');
-    }
-    if (fromFrame > toFrame) {
-      throw new Error('Invalid arguments start frame cannot be larger ' +
-                      'than end frame.');
-    }
-    // Show frame range.
-    request.arguments.fromFrame = fromFrame;
-    request.arguments.toFrame = toFrame + 1;
-  } else if (args.length > 2) {
-    throw new Error('Invalid backtrace arguments.');
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the frame command.
-DebugRequest.prototype.frameCommandToJSONRequest_ = function(args) {
-  // Build a frame request from the text command.
-  var request = this.createRequest('frame');
-  args = args.split(/\s*[ ]+\s*/g);
-  if (args.length > 0 && args[0].length > 0) {
-    request.arguments = {};
-    request.arguments.number = args[0];
-  }
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scopes command.
-DebugRequest.prototype.scopesCommandToJSONRequest_ = function(args) {
-  // Build a scopes request from the text command.
-  var request = this.createRequest('scopes');
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scope command.
-DebugRequest.prototype.scopeCommandToJSONRequest_ = function(args) {
-  // Build a scope request from the text command.
-  var request = this.createRequest('scope');
-  args = args.split(/\s*[ ]+\s*/g);
-  if (args.length > 0 && args[0].length > 0) {
-    request.arguments = {};
-    request.arguments.number = args[0];
-  }
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the print command.
-DebugRequest.prototype.printCommandToJSONRequest_ = function(args) {
-  // Build an evaluate request from the text command.
-  if (args.length == 0) {
-    throw new Error('Missing expression.');
-  }
-  return this.makeEvaluateJSONRequest_(args);
-};
-
-
-// Create a JSON request for the dir command.
-DebugRequest.prototype.dirCommandToJSONRequest_ = function(args) {
-  // Build an evaluate request from the text command.
-  if (args.length == 0) {
-    throw new Error('Missing expression.');
-  }
-  return this.makeEvaluateJSONRequest_(args);
-};
-
-
-// Create a JSON request for the references command.
-DebugRequest.prototype.referencesCommandToJSONRequest_ = function(args) {
-  // Build an evaluate request from the text command.
-  if (args.length == 0) {
-    throw new Error('Missing object id.');
-  }
-
-  return this.makeReferencesJSONRequest_(args, 'referencedBy');
-};
-
-
-// Create a JSON request for the instances command.
-DebugRequest.prototype.instancesCommandToJSONRequest_ = function(args) {
-  // Build an evaluate request from the text command.
-  if (args.length == 0) {
-    throw new Error('Missing object id.');
-  }
-
-  // Build a references request.
-  return this.makeReferencesJSONRequest_(args, 'constructedBy');
-};
-
-
-// Create a JSON request for the list command.
-DebugRequest.prototype.listCommandToJSONRequest_ = function(args) {
-
-  // Default is ten lines starting five lines before the current location.
-  if (Debug.State.displaySourceEndLine == -1) {
-    // If we list forwards, we will start listing after the last source end
-    // line.  Set it to start from 5 lines before the current location.
-    Debug.State.displaySourceEndLine = Debug.State.currentSourceLine - 5;
-    // If we list backwards, we will start listing backwards from the last
-    // source start line.  Set it to start from 1 lines before the current
-    // location.
-    Debug.State.displaySourceStartLine = Debug.State.currentSourceLine + 1;
-  }
-
-  var from = Debug.State.displaySourceEndLine + 1;
-  var lines = 10;
-
-  // Parse the arguments.
-  args = args.split(/\s*,\s*/g);
-  if (args == '') {
-  } else if ((args.length == 1) && (args[0] == '-')) {
-    from = Debug.State.displaySourceStartLine - lines;
-  } else if (args.length == 2) {
-    from = parseInt(args[0]);
-    lines = parseInt(args[1]) - from + 1; // inclusive of the ending line.
-  } else {
-    throw new Error('Invalid list arguments.');
-  }
-  Debug.State.displaySourceStartLine = from;
-  Debug.State.displaySourceEndLine = from + lines - 1;
-  var sourceArgs = '' + from + ' ' + lines;
-  return this.sourceCommandToJSONRequest_(sourceArgs);
-};
-
-
-// Create a JSON request for the source command.
-DebugRequest.prototype.sourceCommandToJSONRequest_ = function(args) {
-  // Build a evaluate request from the text command.
-  var request = this.createRequest('source');
-
-  // Default is ten lines starting five lines before the current location.
-  var from = Debug.State.currentSourceLine - 5;
-  var lines = 10;
-
-  // Parse the arguments.
-  args = args.split(/\s*[ ]+\s*/g);
-  if (args.length > 1 && args[0].length > 0 && args[1].length > 0) {
-    from = parseInt(args[0]) - 1;
-    lines = parseInt(args[1]);
-  } else if (args.length > 0 && args[0].length > 0) {
-    from = parseInt(args[0]) - 1;
-  }
-
-  if (from < 0) from = 0;
-  if (lines < 0) lines = 10;
-
-  // Request source arround current source location.
-  request.arguments = {};
-  request.arguments.fromLine = from;
-  request.arguments.toLine = from + lines;
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the scripts command.
-DebugRequest.prototype.scriptsCommandToJSONRequest_ = function(args) {
-  // Build a evaluate request from the text command.
-  var request = this.createRequest('scripts');
-
-  // Process arguments if any.
-  if (args && args.length > 0) {
-    args = args.split(/\s*[ ]+\s*/g);
-
-    if (args.length > 1) {
-      throw new Error('Invalid scripts arguments.');
-    }
-
-    request.arguments = {};
-    switch (args[0]) {
-      case 'natives':
-        request.arguments.types = ScriptTypeFlag(Debug.ScriptType.Native);
-        break;
-
-      case 'extensions':
-        request.arguments.types = ScriptTypeFlag(Debug.ScriptType.Extension);
-        break;
-
-      case 'all':
-        request.arguments.types =
-            ScriptTypeFlag(Debug.ScriptType.Normal) |
-            ScriptTypeFlag(Debug.ScriptType.Native) |
-            ScriptTypeFlag(Debug.ScriptType.Extension);
-        break;
-
-      default:
-        // If the arg is not one of the know one aboves, then it must be a
-        // filter used for filtering the results:
-        request.arguments.filter = args[0];
-        break;
-    }
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the break command.
-DebugRequest.prototype.breakCommandToJSONRequest_ = function(args) {
-  // Build a evaluate request from the text command.
-  // Process arguments if any.
-  if (args && args.length > 0) {
-    var target = args;
-    var type = 'function';
-    var line;
-    var column;
-    var condition;
-    var pos;
-
-    var request = this.createRequest('setbreakpoint');
-
-    // Break the args into target spec and condition if appropriate.
-
-    // Check for breakpoint condition.
-    pos = args.indexOf(' ');
-    if (pos > 0) {
-      target = args.substring(0, pos);
-      condition = args.substring(pos + 1, args.length);
-    }
-
-    // Check for script breakpoint (name:line[:column]). If no ':' in break
-    // specification it is considered a function break point.
-    pos = target.indexOf(':');
-    if (pos > 0) {
-      var tmp = target.substring(pos + 1, target.length);
-      target = target.substring(0, pos);
-      if (target[0] == '/' && target[target.length - 1] == '/') {
-        type = 'scriptRegExp';
-        target = target.substring(1, target.length - 1);
-      } else {
-        type = 'script';
-      }
-
-      // Check for both line and column.
-      pos = tmp.indexOf(':');
-      if (pos > 0) {
-        column = parseInt(tmp.substring(pos + 1, tmp.length)) - 1;
-        line = parseInt(tmp.substring(0, pos)) - 1;
-      } else {
-        line = parseInt(tmp) - 1;
-      }
-    } else if (target[0] == '#' && target[target.length - 1] == '#') {
-      type = 'handle';
-      target = target.substring(1, target.length - 1);
-    } else {
-      type = 'function';
-    }
-
-    request.arguments = {};
-    request.arguments.type = type;
-    request.arguments.target = target;
-    request.arguments.line = line;
-    request.arguments.column = column;
-    request.arguments.condition = condition;
-  } else {
-    var request = this.createRequest('suspend');
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.breakpointsCommandToJSONRequest_ = function(args) {
-  if (args && args.length > 0) {
-    throw new Error('Unexpected arguments.');
-  }
-  var request = this.createRequest('listbreakpoints');
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the clear command.
-DebugRequest.prototype.clearCommandToJSONRequest_ = function(args) {
-  // Build a evaluate request from the text command.
-  var request = this.createRequest('clearbreakpoint');
-
-  // Process arguments if any.
-  if (args && args.length > 0) {
-    request.arguments = {};
-    request.arguments.breakpoint = parseInt(args);
-  } else {
-    throw new Error('Invalid break arguments.');
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the change breakpoint command.
-DebugRequest.prototype.changeBreakpointCommandToJSONRequest_ =
-    function(args, command) {
-
-  var request;
-
-  // Check for exception breaks first:
-  //   en[able] exc[eptions] [all|unc[aught]]
-  //   en[able] [all|unc[aught]] exc[eptions]
-  //   dis[able] exc[eptions] [all|unc[aught]]
-  //   dis[able] [all|unc[aught]] exc[eptions]
-  if ((command == 'enable' || command == 'disable') &&
-      args && args.length > 1) {
-    var nextPos = args.indexOf(' ');
-    var arg1 = (nextPos > 0) ? args.substring(0, nextPos) : args;
-    var excType = null;
-
-    // Check for:
-    //   en[able] exc[eptions] [all|unc[aught]]
-    //   dis[able] exc[eptions] [all|unc[aught]]
-    if (arg1 == 'exc' || arg1 == 'exception' || arg1 == 'exceptions') {
-
-      var arg2 = (nextPos > 0) ?
-          args.substring(nextPos + 1, args.length) : 'all';
-      if (!arg2) {
-        arg2 = 'all'; // if unspecified, set for all.
-      } else if (arg2 == 'unc') { // check for short cut.
-        arg2 = 'uncaught';
-      }
-      excType = arg2;
-
-    // Check for:
-    //   en[able] [all|unc[aught]] exc[eptions]
-    //   dis[able] [all|unc[aught]] exc[eptions]
-    } else if (arg1 == 'all' || arg1 == 'unc' || arg1 == 'uncaught') {
-
-      var arg2 = (nextPos > 0) ?
-          args.substring(nextPos + 1, args.length) : null;
-      if (arg2 == 'exc' || arg1 == 'exception' || arg1 == 'exceptions') {
-        excType = arg1;
-        if (excType == 'unc') {
-          excType = 'uncaught';
-        }
-      }
-    }
-
-    // If we matched one of the command formats, then excType will be non-null:
-    if (excType) {
-      // Build a evaluate request from the text command.
-      request = this.createRequest('setexceptionbreak');
-
-      request.arguments = {};
-      request.arguments.type = excType;
-      request.arguments.enabled = (command == 'enable');
-
-      return request.toJSONProtocol();
-    }
-  }
-
-  // Build a evaluate request from the text command.
-  request = this.createRequest('changebreakpoint');
-
-  // Process arguments if any.
-  if (args && args.length > 0) {
-    request.arguments = {};
-    var pos = args.indexOf(' ');
-    var breakpointArg = args;
-    var otherArgs;
-    if (pos > 0) {
-      breakpointArg = args.substring(0, pos);
-      otherArgs = args.substring(pos + 1, args.length);
-    }
-
-    request.arguments.breakpoint = parseInt(breakpointArg);
-
-    switch(command) {
-      case 'cond':
-        request.arguments.condition = otherArgs ? otherArgs : null;
-        break;
-      case 'enable':
-        request.arguments.enabled = true;
-        break;
-      case 'disable':
-        request.arguments.enabled = false;
-        break;
-      case 'ignore':
-        request.arguments.ignoreCount = parseInt(otherArgs);
-        break;
-      default:
-        throw new Error('Invalid arguments.');
-    }
-  } else {
-    throw new Error('Invalid arguments.');
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the disconnect command.
-DebugRequest.prototype.disconnectCommandToJSONRequest_ = function(args) {
-  var request;
-  request = this.createRequest('disconnect');
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the info command.
-DebugRequest.prototype.infoCommandToJSONRequest_ = function(args) {
-  var request;
-  if (args && (args == 'break' || args == 'br')) {
-    // Build a evaluate request from the text command.
-    request = this.createRequest('listbreakpoints');
-    last_cmd = 'info break';
-  } else if (args && (args == 'locals' || args == 'lo')) {
-    // Build a evaluate request from the text command.
-    request = this.createRequest('frame');
-    last_cmd = 'info locals';
-  } else if (args && (args == 'args' || args == 'ar')) {
-    // Build a evaluate request from the text command.
-    request = this.createRequest('frame');
-    last_cmd = 'info args';
-  } else {
-    throw new Error('Invalid info arguments.');
-  }
-
-  return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.v8FlagsToJSONRequest_ = function(args) {
-  var request;
-  request = this.createRequest('v8flags');
-  request.arguments = {};
-  request.arguments.flags = args;
-  return request.toJSONProtocol();
-};
-
-
-DebugRequest.prototype.gcToJSONRequest_ = function(args) {
-  var request;
-  if (!args) {
-    args = 'all';
-  }
-  var args = args.split(/\s+/g);
-  var cmd = args[0];
-
-  switch(cmd) {
-    case 'all':
-    case 'quick':
-    case 'full':
-    case 'young':
-    case 'old':
-    case 'compact':
-    case 'sweep':
-    case 'scavenge': {
-      if (cmd == 'young') { cmd = 'quick'; }
-      else if (cmd == 'old') { cmd = 'full'; }
-
-      request = this.createRequest('gc');
-      request.arguments = {};
-      request.arguments.type = cmd;
-      break;
-    }
-      // Else fall thru to the default case below to report the error.
-    default:
-      throw new Error('Missing arguments after ' + cmd + '.');
-  }
-  return request.toJSONProtocol();
-};
-
-
-// Create a JSON request for the threads command.
-DebugRequest.prototype.threadsCommandToJSONRequest_ = function(args) {
-  // Build a threads request from the text command.
-  var request = this.createRequest('threads');
-  return request.toJSONProtocol();
-};
-
-
-// Handle the trace command.
-DebugRequest.prototype.traceCommand_ = function(args) {
-  // Process arguments.
-  if (args && args.length > 0) {
-    if (args == 'compile') {
-      trace_compile = !trace_compile;
-      print('Tracing of compiled scripts ' + (trace_compile ? 'on' : 'off'));
-    } else if (args === 'debug json' || args === 'json' || args === 'packets') {
-      trace_debug_json = !trace_debug_json;
-      print('Tracing of debug json packets ' +
-            (trace_debug_json ? 'on' : 'off'));
-    } else {
-      throw new Error('Invalid trace arguments.');
-    }
-  } else {
-    throw new Error('Invalid trace arguments.');
-  }
-};
-
-// Handle the help command.
-DebugRequest.prototype.helpCommand_ = function(args) {
-  // Help os quite simple.
-  if (args && args.length > 0) {
-    print('warning: arguments to \'help\' are ignored');
-  }
-
-  print('Note: <> denotes symbollic values to be replaced with real values.');
-  print('Note: [] denotes optional parts of commands, or optional options / arguments.');
-  print('      e.g. d[elete] - you get the same command if you type d or delete.');
-  print('');
-  print('[break] - break as soon as possible');
-  print('b[reak] location [condition]');
-  print('        - break on named function: location is a function name');
-  print('        - break on function: location is #<id>#');
-  print('        - break on script position: location is name:line[:column]');
-  print('');
-  print('clear <breakpoint #>       - deletes the specified user defined breakpoint');
-  print('d[elete]  <breakpoint #>   - deletes the specified user defined breakpoint');
-  print('dis[able] <breakpoint #>   - disables the specified user defined breakpoint');
-  print('dis[able] exc[eptions] [[all] | unc[aught]]');
-  print('                           - disables breaking on exceptions');
-  print('en[able]  <breakpoint #>   - enables the specified user defined breakpoint');
-  print('en[able]  exc[eptions] [[all] | unc[aught]]');
-  print('                           - enables breaking on exceptions');
-  print('');
-  print('b[ack]t[race] [n] | [-n] | [from to]');
-  print('                           - prints the stack back trace');
-  print('f[rame]                    - prints info about the current frame context');
-  print('f[rame] <frame #>          - set context to specified frame #');
-  print('scopes');
-  print('scope <scope #>');
-  print('');
-  print('up                         - set context to caller of current frame');
-  print('do[wn]                     - set context to callee of current frame');
-  print('inf[o] br[eak]             - prints info about breakpoints in use');
-  print('inf[o] ar[gs]              - prints info about arguments of the current function');
-  print('inf[o] lo[cals]            - prints info about locals in the current function');
-  print('');
-  print('step [in | next | out| min [step count]]');
-  print('c[ontinue]                 - continue executing after a breakpoint');
-  print('s[tep]   [<N>]             - step into the next N callees (default N is 1)');
-  print('s[tep]i  [<N>]             - step into the next N callees (default N is 1)');
-  print('n[ext]   [<N>]             - step over the next N callees (default N is 1)');
-  print('fin[ish] [<N>]             - step out of N frames (default N is 1)');
-  print('');
-  print('p[rint] <expression>       - prints the result of the specified expression');
-  print('dir <expression>           - prints the object structure of the result');
-  print('set <var> = <expression>   - executes the specified statement');
-  print('');
-  print('l[ist]                     - list the source code around for the current pc');
-  print('l[ist] [- | <start>,<end>] - list the specified range of source code');
-  print('source [from line [num lines]]');
-  print('scr[ipts] [native|extensions|all]');
-  print('scr[ipts] [<filter text>]  - list scripts with the specified text in its description');
-  print('');
-  print('gc                         - runs the garbage collector');
-  print('');
-  print('trace compile');
-  // hidden command: trace debug json - toggles tracing of debug json packets
-  print('');
-  print('disconnect|exit|quit       - disconnects and quits the debugger');
-  print('help                       - prints this help information');
-};
-
-
-function formatHandleReference_(value) {
-  if (value.handle() >= 0) {
-    return '#' + value.handle() + '#';
-  } else {
-    return '#Transient#';
-  }
-}
-
-
-function formatObject_(value, include_properties) {
-  var result = '';
-  result += formatHandleReference_(value);
-  result += ', type: object';
-  result += ', constructor ';
-  var ctor = value.constructorFunctionValue();
-  result += formatHandleReference_(ctor);
-  result += ', __proto__ ';
-  var proto = value.protoObjectValue();
-  result += formatHandleReference_(proto);
-  result += ', ';
-  result += value.propertyCount();
-  result +=  ' properties.';
-  if (include_properties) {
-    result +=  '\n';
-    for (var i = 0; i < value.propertyCount(); i++) {
-      result += '  ';
-      result += value.propertyName(i);
-      result += ': ';
-      var property_value = value.propertyValue(i);
-      if (property_value instanceof ProtocolReference) {
-        result += '<no type>';
-      } else {
-        if (property_value && property_value.type()) {
-          result += property_value.type();
-        } else {
-          result += '<no type>';
-        }
-      }
-      result += ' ';
-      result += formatHandleReference_(property_value);
-      result += '\n';
-    }
-  }
-  return result;
-}
-
-
-function formatScope_(scope) {
-  var result = '';
-  var index = scope.index;
-  result += '#' + (index <= 9 ? '0' : '') + index;
-  result += ' ';
-  switch (scope.type) {
-    case Debug.ScopeType.Global:
-      result += 'Global, ';
-      result += '#' + scope.object.ref + '#';
-      break;
-    case Debug.ScopeType.Local:
-      result += 'Local';
-      break;
-    case Debug.ScopeType.With:
-      result += 'With, ';
-      result += '#' + scope.object.ref + '#';
-      break;
-    case Debug.ScopeType.Catch:
-      result += 'Catch, ';
-      result += '#' + scope.object.ref + '#';
-      break;
-    case Debug.ScopeType.Closure:
-      result += 'Closure';
-      break;
-    default:
-      result += 'UNKNOWN';
-  }
-  return result;
-}
-
-
-function refObjectToString_(protocolPackage, handle) {
-  var value = protocolPackage.lookup(handle);
-  var result = '';
-  if (value.isString()) {
-    result = '"' + value.value() + '"';
-  } else if (value.isPrimitive()) {
-    result = value.valueString();
-  } else if (value.isObject()) {
-    result += formatObject_(value, true);
-  }
-  return result;
-}
-
-
-// Rounds number 'num' to 'length' decimal places.
-function roundNumber(num, length) {
-  var factor = Math.pow(10, length);
-  return Math.round(num * factor) / factor;
-}
-
-
-// Convert a JSON response to text for display in a text based debugger.
-function DebugResponseDetails(response) {
-  var details = { text: '', running: false };
-
-  try {
-    if (!response.success()) {
-      details.text = response.message();
-      return details;
-    }
-
-    // Get the running state.
-    details.running = response.running();
-
-    var body = response.body();
-    var result = '';
-    switch (response.command()) {
-      case 'suspend':
-        details.text = 'stopped';
-        break;
-
-      case 'setbreakpoint':
-        result = 'set breakpoint #';
-        result += body.breakpoint;
-        details.text = result;
-        break;
-
-      case 'clearbreakpoint':
-        result = 'cleared breakpoint #';
-        result += body.breakpoint;
-        details.text = result;
-        break;
-
-      case 'changebreakpoint':
-        result = 'successfully changed breakpoint';
-        details.text = result;
-        break;
-
-      case 'listbreakpoints':
-        result = 'breakpoints: (' + body.breakpoints.length + ')';
-        for (var i = 0; i < body.breakpoints.length; i++) {
-          var breakpoint = body.breakpoints[i];
-          result += '\n id=' + breakpoint.number;
-          result += ' type=' + breakpoint.type;
-          if (breakpoint.script_id) {
-              result += ' script_id=' + breakpoint.script_id;
-          }
-          if (breakpoint.script_name) {
-              result += ' script_name=' + breakpoint.script_name;
-          }
-          if (breakpoint.script_regexp) {
-              result += ' script_regexp=' + breakpoint.script_regexp;
-          }
-          result += ' line=' + (breakpoint.line + 1);
-          if (breakpoint.column != null) {
-            result += ' column=' + (breakpoint.column + 1);
-          }
-          if (breakpoint.groupId) {
-            result += ' groupId=' + breakpoint.groupId;
-          }
-          if (breakpoint.ignoreCount) {
-              result += ' ignoreCount=' + breakpoint.ignoreCount;
-          }
-          if (breakpoint.active === false) {
-            result += ' inactive';
-          }
-          if (breakpoint.condition) {
-            result += ' condition=' + breakpoint.condition;
-          }
-          result += ' hit_count=' + breakpoint.hit_count;
-        }
-        if (body.breakpoints.length === 0) {
-          result = "No user defined breakpoints\n";
-        } else {
-          result += '\n';
-        }
-        if (body.breakOnExceptions) {
-          result += '* breaking on ALL exceptions is enabled\n';
-        } else if (body.breakOnUncaughtExceptions) {
-          result += '* breaking on UNCAUGHT exceptions is enabled\n';
-        } else {
-          result += '* all exception breakpoints are disabled\n';
-        }
-        details.text = result;
-        break;
-
-      case 'setexceptionbreak':
-        result = 'Break on ' + body.type + ' exceptions: ';
-        result += body.enabled ? 'enabled' : 'disabled';
-        details.text = result;
-        break;
-
-      case 'backtrace':
-        if (body.totalFrames == 0) {
-          result = '(empty stack)';
-        } else {
-          var result = 'Frames #' + body.fromFrame + ' to #' +
-              (body.toFrame - 1) + ' of ' + body.totalFrames + '\n';
-          for (i = 0; i < body.frames.length; i++) {
-            if (i != 0) result += '\n';
-            result += body.frames[i].text;
-          }
-        }
-        details.text = result;
-        break;
-
-      case 'frame':
-        if (last_cmd === 'info locals') {
-          var locals = body.locals;
-          if (locals.length === 0) {
-            result = 'No locals';
-          } else {
-            for (var i = 0; i < locals.length; i++) {
-              var local = locals[i];
-              result += local.name + ' = ';
-              result += refObjectToString_(response, local.value.ref);
-              result += '\n';
-            }
-          }
-        } else if (last_cmd === 'info args') {
-          var args = body.arguments;
-          if (args.length === 0) {
-            result = 'No arguments';
-          } else {
-            for (var i = 0; i < args.length; i++) {
-              var arg = args[i];
-              result += arg.name + ' = ';
-              result += refObjectToString_(response, arg.value.ref);
-              result += '\n';
-            }
-          }
-        } else {
-          result = SourceUnderline(body.sourceLineText,
-                                   body.column);
-          Debug.State.currentSourceLine = body.line;
-          Debug.State.currentFrame = body.index;
-          Debug.State.displaySourceStartLine = -1;
-          Debug.State.displaySourceEndLine = -1;
-        }
-        details.text = result;
-        break;
-
-      case 'scopes':
-        if (body.totalScopes == 0) {
-          result = '(no scopes)';
-        } else {
-          result = 'Scopes #' + body.fromScope + ' to #' +
-                   (body.toScope - 1) + ' of ' + body.totalScopes + '\n';
-          for (i = 0; i < body.scopes.length; i++) {
-            if (i != 0) {
-              result += '\n';
-            }
-            result += formatScope_(body.scopes[i]);
-          }
-        }
-        details.text = result;
-        break;
-
-      case 'scope':
-        result += formatScope_(body);
-        result += '\n';
-        var scope_object_value = response.lookup(body.object.ref);
-        result += formatObject_(scope_object_value, true);
-        details.text = result;
-        break;
-
-      case 'evaluate':
-      case 'lookup':
-      case 'getobj':
-        if (last_cmd == 'p' || last_cmd == 'print') {
-          result = body.text;
-        } else {
-          var value;
-          if (lookup_handle) {
-            value = response.bodyValue(lookup_handle);
-          } else {
-            value = response.bodyValue();
-          }
-          if (value.isObject()) {
-            result += formatObject_(value, true);
-          } else {
-            result += 'type: ';
-            result += value.type();
-            if (!value.isUndefined() && !value.isNull()) {
-              result += ', ';
-              if (value.isString()) {
-                result += '"';
-              }
-              result += value.value();
-              if (value.isString()) {
-                result += '"';
-              }
-            }
-            result += '\n';
-          }
-        }
-        details.text = result;
-        break;
-
-      case 'references':
-        var count = body.length;
-        result += 'found ' + count + ' objects';
-        result += '\n';
-        for (var i = 0; i < count; i++) {
-          var value = response.bodyValue(i);
-          result += formatObject_(value, false);
-          result += '\n';
-        }
-        details.text = result;
-        break;
-
-      case 'source':
-        // Get the source from the response.
-        var source = body.source;
-        var from_line = body.fromLine + 1;
-        var lines = source.split('\n');
-        var maxdigits = 1 + Math.floor(log10(from_line + lines.length));
-        if (maxdigits < 3) {
-          maxdigits = 3;
-        }
-        var result = '';
-        for (var num = 0; num < lines.length; num++) {
-          // Check if there's an extra newline at the end.
-          if (num == (lines.length - 1) && lines[num].length == 0) {
-            break;
-          }
-
-          var current_line = from_line + num;
-          var spacer = maxdigits - (1 + Math.floor(log10(current_line)));
-          if (current_line == Debug.State.currentSourceLine + 1) {
-            for (var i = 0; i < maxdigits; i++) {
-              result += '>';
-            }
-            result += '  ';
-          } else {
-            for (var i = 0; i < spacer; i++) {
-              result += ' ';
-            }
-            result += current_line + ': ';
-          }
-          result += lines[num];
-          result += '\n';
-        }
-        details.text = result;
-        break;
-
-      case 'scripts':
-        var result = '';
-        for (i = 0; i < body.length; i++) {
-          if (i != 0) result += '\n';
-          if (body[i].id) {
-            result += body[i].id;
-          } else {
-            result += '[no id]';
-          }
-          result += ', ';
-          if (body[i].name) {
-            result += body[i].name;
-          } else {
-            if (body[i].compilationType == Debug.ScriptCompilationType.Eval
-                && body[i].evalFromScript
-                ) {
-              result += 'eval from ';
-              var script_value = response.lookup(body[i].evalFromScript.ref);
-              result += ' ' + script_value.field('name');
-              result += ':' + (body[i].evalFromLocation.line + 1);
-              result += ':' + body[i].evalFromLocation.column;
-            } else if (body[i].compilationType ==
-                       Debug.ScriptCompilationType.JSON) {
-              result += 'JSON ';
-            } else {  // body[i].compilation == Debug.ScriptCompilationType.Host
-              result += '[unnamed] ';
-            }
-          }
-          result += ' (lines: ';
-          result += body[i].lineCount;
-          result += ', length: ';
-          result += body[i].sourceLength;
-          if (body[i].type == Debug.ScriptType.Native) {
-            result += ', native';
-          } else if (body[i].type == Debug.ScriptType.Extension) {
-            result += ', extension';
-          }
-          result += '), [';
-          var sourceStart = body[i].sourceStart;
-          if (sourceStart.length > 40) {
-            sourceStart = sourceStart.substring(0, 37) + '...';
-          }
-          result += sourceStart;
-          result += ']';
-        }
-        if (body.length == 0) {
-          result = "no matching scripts found";
-        }
-        details.text = result;
-        break;
-
-      case 'threads':
-        var result = 'Active V8 threads: ' + body.totalThreads + '\n';
-        body.threads.sort(function(a, b) { return a.id - b.id; });
-        for (i = 0; i < body.threads.length; i++) {
-          result += body.threads[i].current ? '*' : ' ';
-          result += ' ';
-          result += body.threads[i].id;
-          result += '\n';
-        }
-        details.text = result;
-        break;
-
-      case 'continue':
-        details.text = "(running)";
-        break;
-
-      case 'v8flags':
-        details.text = "flags set";
-        break;
-
-      case 'gc':
-        details.text = "GC " + body.before + " => " + body.after;
-        if (body.after > (1024*1024)) {
-          details.text +=
-              " (" + roundNumber(body.before/(1024*1024), 1) + "M => " +
-                     roundNumber(body.after/(1024*1024), 1) + "M)";
-        } else if (body.after > 1024) {
-          details.text +=
-              " (" + roundNumber(body.before/1024, 1) + "K => " +
-                     roundNumber(body.after/1024, 1) + "K)";
-        }
-        break;
-
-      default:
-        details.text =
-            'Response for unknown command \'' + response.command() + '\'' +
-            ' (' + response.raw_json() + ')';
-    }
-  } catch (e) {
-    details.text = 'Error: "' + e + '" formatting response';
-  }
-
-  return details;
-}
-
-
-/**
- * Protocol packages send from the debugger.
- * @param {string} json - raw protocol packet as JSON string.
- * @constructor
- */
-function ProtocolPackage(json) {
-  this.raw_json_ = json;
-  this.packet_ = JSON.parse(json);
-  this.refs_ = [];
-  if (this.packet_.refs) {
-    for (var i = 0; i < this.packet_.refs.length; i++) {
-      this.refs_[this.packet_.refs[i].handle] = this.packet_.refs[i];
-    }
-  }
-}
-
-
-/**
- * Get the packet type.
- * @return {String} the packet type
- */
-ProtocolPackage.prototype.type = function() {
-  return this.packet_.type;
-};
-
-
-/**
- * Get the packet event.
- * @return {Object} the packet event
- */
-ProtocolPackage.prototype.event = function() {
-  return this.packet_.event;
-};
-
-
-/**
- * Get the packet request sequence.
- * @return {number} the packet request sequence
- */
-ProtocolPackage.prototype.requestSeq = function() {
-  return this.packet_.request_seq;
-};
-
-
-/**
- * Get the packet request sequence.
- * @return {number} the packet request sequence
- */
-ProtocolPackage.prototype.running = function() {
-  return this.packet_.running ? true : false;
-};
-
-
-ProtocolPackage.prototype.success = function() {
-  return this.packet_.success ? true : false;
-};
-
-
-ProtocolPackage.prototype.message = function() {
-  return this.packet_.message;
-};
-
-
-ProtocolPackage.prototype.command = function() {
-  return this.packet_.command;
-};
-
-
-ProtocolPackage.prototype.body = function() {
-  return this.packet_.body;
-};
-
-
-ProtocolPackage.prototype.bodyValue = function(index) {
-  if (index != null) {
-    return new ProtocolValue(this.packet_.body[index], this);
-  } else {
-    return new ProtocolValue(this.packet_.body, this);
-  }
-};
-
-
-ProtocolPackage.prototype.body = function() {
-  return this.packet_.body;
-};
-
-
-ProtocolPackage.prototype.lookup = function(handle) {
-  var value = this.refs_[handle];
-  if (value) {
-    return new ProtocolValue(value, this);
-  } else {
-    return new ProtocolReference(handle);
-  }
-};
-
-
-ProtocolPackage.prototype.raw_json = function() {
-  return this.raw_json_;
-};
-
-
-function ProtocolValue(value, packet) {
-  this.value_ = value;
-  this.packet_ = packet;
-}
-
-
-/**
- * Get the value type.
- * @return {String} the value type
- */
-ProtocolValue.prototype.type = function() {
-  return this.value_.type;
-};
-
-
-/**
- * Get a metadata field from a protocol value.
- * @return {Object} the metadata field value
- */
-ProtocolValue.prototype.field = function(name) {
-  return this.value_[name];
-};
-
-
-/**
- * Check is the value is a primitive value.
- * @return {boolean} true if the value is primitive
- */
-ProtocolValue.prototype.isPrimitive = function() {
-  return this.isUndefined() || this.isNull() || this.isBoolean() ||
-         this.isNumber() || this.isString();
-};
-
-
-/**
- * Get the object handle.
- * @return {number} the value handle
- */
-ProtocolValue.prototype.handle = function() {
-  return this.value_.handle;
-};
-
-
-/**
- * Check is the value is undefined.
- * @return {boolean} true if the value is undefined
- */
-ProtocolValue.prototype.isUndefined = function() {
-  return this.value_.type == 'undefined';
-};
-
-
-/**
- * Check is the value is null.
- * @return {boolean} true if the value is null
- */
-ProtocolValue.prototype.isNull = function() {
-  return this.value_.type == 'null';
-};
-
-
-/**
- * Check is the value is a boolean.
- * @return {boolean} true if the value is a boolean
- */
-ProtocolValue.prototype.isBoolean = function() {
-  return this.value_.type == 'boolean';
-};
-
-
-/**
- * Check is the value is a number.
- * @return {boolean} true if the value is a number
- */
-ProtocolValue.prototype.isNumber = function() {
-  return this.value_.type == 'number';
-};
-
-
-/**
- * Check is the value is a string.
- * @return {boolean} true if the value is a string
- */
-ProtocolValue.prototype.isString = function() {
-  return this.value_.type == 'string';
-};
-
-
-/**
- * Check is the value is an object.
- * @return {boolean} true if the value is an object
- */
-ProtocolValue.prototype.isObject = function() {
-  return this.value_.type == 'object' || this.value_.type == 'function' ||
-         this.value_.type == 'error' || this.value_.type == 'regexp';
-};
-
-
-/**
- * Get the constructor function
- * @return {ProtocolValue} constructor function
- */
-ProtocolValue.prototype.constructorFunctionValue = function() {
-  var ctor = this.value_.constructorFunction;
-  return this.packet_.lookup(ctor.ref);
-};
-
-
-/**
- * Get the __proto__ value
- * @return {ProtocolValue} __proto__ value
- */
-ProtocolValue.prototype.protoObjectValue = function() {
-  var proto = this.value_.protoObject;
-  return this.packet_.lookup(proto.ref);
-};
-
-
-/**
- * Get the number og properties.
- * @return {number} the number of properties
- */
-ProtocolValue.prototype.propertyCount = function() {
-  return this.value_.properties ? this.value_.properties.length : 0;
-};
-
-
-/**
- * Get the specified property name.
- * @return {string} property name
- */
-ProtocolValue.prototype.propertyName = function(index) {
-  var property = this.value_.properties[index];
-  return property.name;
-};
-
-
-/**
- * Return index for the property name.
- * @param name The property name to look for
- * @return {number} index for the property name
- */
-ProtocolValue.prototype.propertyIndex = function(name) {
-  for (var i = 0; i < this.propertyCount(); i++) {
-    if (this.value_.properties[i].name == name) {
-      return i;
-    }
-  }
-  return null;
-};
-
-
-/**
- * Get the specified property value.
- * @return {ProtocolValue} property value
- */
-ProtocolValue.prototype.propertyValue = function(index) {
-  var property = this.value_.properties[index];
-  return this.packet_.lookup(property.ref);
-};
-
-
-/**
- * Check is the value is a string.
- * @return {boolean} true if the value is a string
- */
-ProtocolValue.prototype.value = function() {
-  return this.value_.value;
-};
-
-
-ProtocolValue.prototype.valueString = function() {
-  return this.value_.text;
-};
-
-
-function ProtocolReference(handle) {
-  this.handle_ = handle;
-}
-
-
-ProtocolReference.prototype.handle = function() {
-  return this.handle_;
-};
-
-
 // A more universal stringify that supports more types than JSON.
 // Used by the d8 shell to output results.
 var stringifyDepthLimit = 4;  // To avoid crashing on cyclic objects
@@ -2017,6 +105,6 @@ function Stringify(x, depth) {
       }
       return "{" + props.join(", ") + "}";
     default:
-      return "[crazy non-standard shit]";
+      return "[crazy non-standard value]";
   }
 }