Add FunctionTemplate::GetClassName to API.

src/api.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 1225 matching lines @@
 }
 
 
 void FunctionTemplate::SetClassName(Handle<String> name) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   ENTER_V8(isolate);
   Utils::OpenHandle(this)->set_class_name(*Utils::OpenHandle(*name));
 }
 
 
+Local<String> FunctionTemplate::GetClassName() {
+  i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
+  ENTER_V8(isolate);
+  EscapableHandleScope scope(reinterpret_cast<Isolate*>(isolate));

[Yang, 2014/07/09 11:41:50]

Not sure whether we really need the handle scope to get rid of just one extra
handle.

[aandrey, 2014/07/09 11:46:24]

Removed.

+  i::Handle<i::FunctionTemplateInfo> self = Utils::OpenHandle(this);
+  i::Handle<i::Object> name(self->class_name(), isolate);
+  if (name->IsString()) {
+    return scope.Escape(Utils::ToLocal(i::Handle<i::String>::cast(name)));
+  } else {
+    return Local<String>();
+  }
+}
+
+
 void FunctionTemplate::SetHiddenPrototype(bool value) {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   ENTER_V8(isolate);
   Utils::OpenHandle(this)->set_hidden_prototype(value);
 }
 
 
 void FunctionTemplate::ReadOnlyPrototype() {
   i::Isolate* isolate = Utils::OpenHandle(this)->GetIsolate();
   ENTER_V8(isolate);
@@ skipping 6431 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal