Provide access to the debuggee context from debug event listener

src/api.cc

 // Copyright 2009 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 3974 matching lines @@
     error = *result;
   }
   i::Handle<i::Object> result(error);
   return Utils::ToLocal(result);
 }
 
 
 // --- D e b u g   S u p p o r t ---
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
+
+static v8::Debug::EventCallback event_callback = NULL;
+
+static void EventCallbackWrapper(const v8::Debug::EventDetails& event_details) {
+  if (event_callback) {
+    event_callback(event_details.GetEvent(),
+                   event_details.GetExecutionState(),
+                   event_details.GetEventData(),
+                   event_details.GetCallbackData());
+  }
+}
+
+
 bool Debug::SetDebugEventListener(EventCallback that, Handle<Value> data) {
   EnsureInitialized("v8::Debug::SetDebugEventListener()");
   ON_BAILOUT("v8::Debug::SetDebugEventListener()", return false);
   ENTER_V8;
+
+  event_callback = that;
+
+  HandleScope scope;
+  i::Handle<i::Object> proxy = i::Factory::undefined_value();
+  if (that != NULL) {
+    proxy = i::Factory::NewProxy(FUNCTION_ADDR(EventCallbackWrapper));
+  }
+  i::Debugger::SetEventListener(proxy, Utils::OpenHandle(*data));
+  return true;
+}
+
+
+bool Debug::SetDebugEventListener2(EventCallback2 that, Handle<Value> data) {
+  EnsureInitialized("v8::Debug::SetDebugEventListener2()");
+  ON_BAILOUT("v8::Debug::SetDebugEventListener2()", return false);
+  ENTER_V8;
   HandleScope scope;
   i::Handle<i::Object> proxy = i::Factory::undefined_value();
   if (that != NULL) {
     proxy = i::Factory::NewProxy(FUNCTION_ADDR(that));
   }
   i::Debugger::SetEventListener(proxy, Utils::OpenHandle(*data));
   return true;
 }
 
 
@@ skipping 355 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