diff --git a/src/api-arguments.cc b/src/api-arguments.cc
new file mode 100644
index 0000000..c4b698c
--- /dev/null
+++ b/src/api-arguments.cc
@@ -0,0 +1,31 @@
+// Copyright 2016 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-arguments.h"
+
+namespace v8 {
+namespace internal {
+
+Handle<Object> FunctionCallbackArguments::Call(FunctionCallback f) {
+  Isolate* isolate = this->isolate();
+  VMState<EXTERNAL> state(isolate);
+  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));
+  FunctionCallbackInfo<v8::Value> info(begin(), argv_, argc_,
+                                       is_construct_call_);
+  f(info);
+  return GetReturnValue<Object>(isolate);
+}
+
+Handle<JSObject> PropertyCallbackArguments::Call(
+    IndexedPropertyEnumeratorCallback f) {
+  Isolate* isolate = this->isolate();
+  VMState<EXTERNAL> state(isolate);
+  ExternalCallbackScope call_scope(isolate, FUNCTION_ADDR(f));
+  PropertyCallbackInfo<v8::Array> info(begin());
+  f(info);
+  return GetReturnValue<JSObject>(isolate);
+}
+
+}  // namespace internal
+}  // namespace v8