Fix crash in Debug::SendCommand.

src/api.cc

 // Copyright 2010 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 4885 matching lines @@
 
 
 void Debug::SetMessageHandler2(v8::Debug::MessageHandler2 handler) {
   EnsureInitialized("v8::Debug::SetMessageHandler");
   ENTER_V8;
   i::Isolate::Current()->debugger()->SetMessageHandler(handler);
 }
 
 
 void Debug::SendCommand(const uint16_t* command, int length,
-                        ClientData* client_data) {
-  if (!i::Isolate::Current()->IsInitialized()) return;
-  i::Isolate::Current()->debugger()->ProcessCommand(
-      i::Vector<const uint16_t>(command, length), client_data);
+                        ClientData* client_data,
+                        Isolate* isolate) {
+  // If no isolate is supplied, use the default isolate.
+  if (isolate != NULL) {
+        i::Isolate* internal_isolate = reinterpret_cast<i::Isolate*>(isolate);

[Vitaly Repeshko, 2011/03/22 15:54:10]

Replace tabs with spaces and fix indentation. 

+        internal_isolate->debugger()->ProcessCommand(
+            i::Vector<const uint16_t>(command, length), client_data);
+  } else {
+        i::Isolate::GetDefaultIsolateDebugger()->ProcessCommand(
+        i::Vector<const uint16_t>(command, length), client_data);
+  }
 }
 
 
 void Debug::SetHostDispatchHandler(HostDispatchHandler handler,
                                    int period) {
   EnsureInitialized("v8::Debug::SetHostDispatchHandler");
   ENTER_V8;
   i::Isolate::Current()->debugger()->SetHostDispatchHandler(handler, period);
 }
 
@@ skipping 688 matching lines @@
 
 
 char* HandleScopeImplementer::Iterate(ObjectVisitor* v, char* storage) {
   HandleScopeImplementer* thread_local =
       reinterpret_cast<HandleScopeImplementer*>(storage);
   thread_local->IterateThis(v);
   return storage + ArchiveSpacePerThread();
 }
 
 } }  // namespace v8::internal