[api] Expose ES6 7.3.14 SetIntegrityLevel on v8::Object

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 3894 matching lines @@
   RETURN_TO_LOCAL_UNCHECKED(ObjectProtoToString(context), String);
 }
 
 
 Local<String> v8::Object::GetConstructorName() {
   auto self = Utils::OpenHandle(this);
   i::Handle<i::String> name = i::JSReceiver::GetConstructorName(self);
   return Utils::ToLocal(name);
 }
 
+Maybe<bool> v8::Object::SetIntegrityLevel(Local<Context> context,
+                                          IntegrityLevel level) {
+  PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Object::SetIntegrityLevel()",
+                                  bool);
+  auto self = Utils::OpenHandle(this);
+  i::JSReceiver::IntegrityLevel i_level =
+      level == IntegrityLevel::kFrozen ? i::FROZEN : i::SEALED;
+  Maybe<bool> result =
+      i::JSReceiver::SetIntegrityLevel(self, i_level, i::Object::DONT_THROW);
+  has_pending_exception = result.IsNothing();
+  RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool);
+  return result;
+}
 
 Maybe<bool> v8::Object::Delete(Local<Context> context, Local<Value> key) {
   PREPARE_FOR_EXECUTION_PRIMITIVE(context, "v8::Object::Delete()", bool);
   auto self = Utils::OpenHandle(this);
   auto key_obj = Utils::OpenHandle(*key);
   Maybe<bool> result =
       i::Runtime::DeleteObjectProperty(isolate, self, key_obj, i::SLOPPY);
   has_pending_exception = result.IsNothing();
   RETURN_ON_FAILED_EXECUTION_PRIMITIVE(bool);
   return result;
@@ skipping 4863 matching lines @@
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 }  // namespace internal
 }  // namespace v8