Added TryCatch::ReThrow method.

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 1179 matching lines @@
 // --- E x c e p t i o n s ---
 
 
 v8::TryCatch::TryCatch()
     : next_(i::Top::try_catch_handler()),
       exception_(i::Heap::the_hole_value()),
       message_(i::Smi::FromInt(0)),
       is_verbose_(false),
       can_continue_(true),
       capture_message_(true),
+      rethrow_(false),
       js_handler_(NULL) {
   i::Top::RegisterTryCatchHandler(this);
 }
 
 
 v8::TryCatch::~TryCatch() {
-  i::Top::UnregisterTryCatchHandler(this);
+  if (rethrow_) {
+    v8::HandleScope scope;
+    v8::Local<v8::Value> exc = v8::Local<v8::Value>::New(Exception());
+    i::Top::UnregisterTryCatchHandler(this);
+    v8::ThrowException(exc);
+  } else {
+    i::Top::UnregisterTryCatchHandler(this);
+  }
 }
 
 
 bool v8::TryCatch::HasCaught() const {
   return !reinterpret_cast<i::Object*>(exception_)->IsTheHole();
 }
 
 
 bool v8::TryCatch::CanContinue() const {
   return can_continue_;
 }
 
 
+v8::Handle<v8::Value> v8::TryCatch::ReThrow() {
+  if (!HasCaught()) return v8::Local<v8::Value>();
+  rethrow_ = true;
+  return v8::Undefined();
+}
+
+
 v8::Local<Value> v8::TryCatch::Exception() const {
   if (HasCaught()) {
     // Check for out of memory exception.
     i::Object* exception = reinterpret_cast<i::Object*>(exception_);
     return v8::Utils::ToLocal(i::Handle<i::Object>(exception));
   } else {
     return v8::Local<Value>();
   }
 }
 
@@ skipping 2613 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