Tweak D8 remote debugger...

src/d8.js

 // Copyright 2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 697 matching lines @@
     }
   }
 
   return request.toJSONProtocol();
 };
 
 
 // Create a JSON request for the break command.
 DebugRequest.prototype.breakCommandToJSONRequest_ = function(args) {
   // Build a evaluate request from the text command.
-  var request = this.createRequest('setbreakpoint');
-
   // 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');
+
     // 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(':');
@@ skipping 17 matching lines @@
       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 {
-    throw new Error('Invalid break arguments.');
+    var request = this.createRequest('suspend');
   }
 
   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');
@@ skipping 33 matching lines @@
   }
 }
 
 // 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('break');
   print('break 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('clear <breakpoint #>');
   print('backtrace [n] | [-n] | [from to]');
   print('frame <frame #>');
   print('scopes');
   print('scope <scope #>');
   print('step [in | next | out| min [step count]]');
@@ skipping 94 matching lines @@
       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;
@@ skipping 672 matching lines @@
       json += NumberToJSON_(elem);
     } else if (typeof(elem) === 'string')  {
       json += StringToJSON_(elem);
     } else {
       json += elem;
     }
   }
   json += ']';
   return json;
 }