From 5bd49ebc4fe05dabc338297722912be8ccad5dde Mon Sep 17 00:00:00 2001
From: Refael Ackermann <refack@gmail.com>
Date: Sat, 13 Oct 2018 12:58:46 -0400
Subject: [PATCH] src: malloced_unique_ptr & make_malloced_unique

Ref: https://github.com/nodejs/node/pull/23641
Ref: https://github.com/nodejs/node/pull/23543#pullrequestreview-164467022
Ref: https://github.com/nodejs/node/pull/23434
---
 src/util.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/util.h b/src/util.h
index 880408df4d57fd..305049853590a8 100644
--- a/src/util.h
+++ b/src/util.h
@@ -492,6 +492,22 @@ template <typename T, typename U>
 inline v8::MaybeLocal<v8::Value> ToV8Value(v8::Local<v8::Context> context,
                                            const std::unordered_map<T, U>& map);
 
+// Helper for `malloced_unique_ptr`
+template<typename T>
+struct MallocDeleter {
+  void operator()(T* ptr) const { free(ptr); }
+};
+
+// Specialization of `std::unique_ptr` that used `Malloc<t>`
+template<typename T>
+using malloced_unique_ptr = std::unique_ptr<T, MallocDeleter<T>>;
+
+// Factory of `malloced_unique_ptr`
+template<typename T>
+malloced_unique_ptr<T> make_malloced_unique(size_t number_of_t) {
+  return malloced_unique_ptr<T>(Malloc<T>(number_of_t));
+}
+
 }  // namespace node
 
 #endif  // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS