1 files changed, 96 insertions, 0 deletions
diff --git a/third_party/msgpack/include/msgpack/v2/null_visitor.hpp b/third_party/msgpack/include/msgpack/v2/null_visitor.hpp
new file mode 100644
index 0000000000..c9a1fdb9ae
--- /dev/null
+++ b/third_party/msgpack/include/msgpack/v2/null_visitor.hpp
@@ -0,0 +1,96 @@
+//
+// MessagePack for C++ deserializing routine
+//
+// Copyright (C) 2017 KONDO Takatoshi
+//
+//    Distributed under the Boost Software License, Version 1.0.
+//    (See accompanying file LICENSE_1_0.txt or copy at
+//    http://www.boost.org/LICENSE_1_0.txt)
+//
+#ifndef MSGPACK_V2_NULL_VISITOR_HPP
+#define MSGPACK_V2_NULL_VISITOR_HPP
+
+#include "msgpack/v2/null_visitor_decl.hpp"
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v2) {
+/// @endcond
+
+struct null_visitor {
+    bool visit_nil() {
+        return true;
+    }
+    bool visit_boolean(bool /*v*/) {
+        return true;
+    }
+    bool visit_positive_integer(uint64_t /*v*/) {
+        return true;
+    }
+    bool visit_negative_integer(int64_t /*v*/) {
+        return true;
+    }
+    bool visit_float32(float /*v*/) {
+        return true;
+    }
+    bool visit_float64(double /*v*/) {
+        return true;
+    }
+    bool visit_str(const char* /*v*/, uint32_t /*size*/) {
+        return true;
+    }
+    bool visit_bin(const char* /*v*/, uint32_t /*size*/) {
+        return true;
+    }
+    bool visit_ext(const char* /*v*/, uint32_t /*size*/) {
+        return true;
+    }
+    bool start_array(uint32_t /*num_elements*/) {
+        return true;
+    }
+    bool start_array_item() {
+        return true;
+    }
+    bool end_array_item() {
+        return true;
+    }
+    bool end_array() {
+        return true;
+    }
+    bool start_map(uint32_t /*num_kv_pairs*/) {
+        return true;
+    }
+    bool start_map_key() {
+        return true;
+    }
+    bool end_map_key() {
+        return true;
+    }
+    bool start_map_value() {
+        return true;
+    }
+    bool end_map_value() {
+        return true;
+    }
+    bool end_map() {
+        return true;
+    }
+    void parse_error(size_t /*parsed_offset*/, size_t /*error_offset*/) {
+    }
+    void insufficient_bytes(size_t /*parsed_offset*/, size_t /*error_offset*/) {
+    }
+    bool referenced() const {
+        return false;
+    }
+    void set_referenced(bool /*referenced*/) {
+    }
+};
+
+/// @cond
+}  // MSGPACK_API_VERSION_NAMESPACE(v2)
+/// @endcond
+
+}  // namespace msgpack
+
+#endif // MSGPACK_V2_NULL_VISITOR_HPP