From 5a139159604a11b44c21518f411b49c795873487 Mon Sep 17 00:00:00 2001
From: mpilman <markus.pilman@snowflake.com>
Date: Fri, 10 May 2019 13:14:17 -0700
Subject: [PATCH] implemented std::set serializer for flatbuffers

---
 flow/flat_buffers.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/flow/flat_buffers.h b/flow/flat_buffers.h
index 3a0c7d6a0b..a7ff261358 100644
--- a/flow/flat_buffers.h
+++ b/flow/flat_buffers.h
@@ -153,6 +153,21 @@ struct vector_like_traits<std::map<Key, T, Compare, Allocator>> : std::true_type
 	static iterator begin(const Vec& v) { return v.begin(); }
 };
 
+template<class Key, class Compare, class Allocator>
+struct vector_like_traits<std::set<Key, Compare, Allocator>> : std::true_type {
+	using Vec = std::set<Key, Compare, Allocator>;
+	using value_type = Key;
+	using iterator = typename Vec::const_iterator;
+	using insert_iterator = std::insert_iterator<Vec>;
+
+	static size_t num_entries(const Vec& v) { return v.size(); }
+	template <class Context>
+	static void reserve(Vec&, size_t, Context&) {}
+
+	static insert_iterator insert(Vec& v) { return std::inserter(v, v.end()); }
+	static iterator begin(const Vec& v) { return v.begin(); }
+};
+
 template <>
 struct dynamic_size_traits<std::string> : std::true_type {
 private: