Add an API to let the embedder associate arbitrary data with a v8::Context.

src/api.cc

 // Copyright 2012 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 774 matching lines @@
   }
   ASSERT(env->IsNativeContext());
   if (!env->IsNativeContext()) {
     return Local<Value>();
   }
   i::Handle<i::Object> result(env->data(), isolate);
   return Utils::ToLocal(result);
 }
 
 
+void Context::SetEmbedderData(void* ptr) {
+  i::Handle<i::Context> env = Utils::OpenHandle(this);
+  i::Isolate* isolate = env->GetIsolate();
+  if (IsDeadCheck(isolate, "v8::Context::SetEmbedderData()")) return;
+  Local<Value> data = External::Wrap(ptr);
+  i::Handle<i::Object> raw_data = Utils::OpenHandle(*data);
+  ASSERT(env->IsNativeContext());
+  env->set_embedder_data(*raw_data);
+}
+
+
+void* Context::GetEmbedderData() {
+  i::Handle<i::Context> env = Utils::OpenHandle(this);
+  i::Isolate* isolate = env->GetIsolate();
+  if (IsDeadCheck(isolate, "v8::Context::GetEmbedderData()")) {
+    return 0;
+  }
+  i::Handle<i::Object> result(env->embedder_data(), isolate);
+  Local<Value> data = Utils::ToLocal(result);
+  return External::Unwrap(data);
+}
+
+
 i::Object** v8::HandleScope::RawClose(i::Object** value) {
   if (!ApiCheck(!is_closed_,
                 "v8::HandleScope::Close()",
                 "Local scope has already been closed")) {
     return 0;
   }
   LOG_API(isolate_, "CloseHandleScope");
 
   // Read the result before popping the handle block.
   i::Object* result = NULL;
@@ skipping 5785 matching lines @@
 
   v->VisitPointers(blocks_.first(), first_block_limit_);
 
   for (int i = 1; i < blocks_.length(); i++) {
     v->VisitPointers(blocks_[i], &blocks_[i][kHandleBlockSize]);
   }
 }
 
 
 } }  // namespace v8::internal