Merge pull request #558 from redboltz/add_boost_string_view

Added boost string_view adaptor.

include/msgpack/adaptor/boost/string_view.hpp

@@ -0,0 +1,15 @@
+//
+// MessagePack for C++ static resolution 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_TYPE_BOOST_STRING_VIEW_HPP
+#define MSGPACK_TYPE_BOOST_STRING_VIEW_HPP
+
+#include "msgpack/v1/adaptor/boost/string_view.hpp"
+
+#endif // MSGPACK_TYPE_BOOST_STRING_VIEW_HPP

include/msgpack/type.hpp

@@ -50,5 +50,6 @@
 #include "adaptor/boost/msgpack_variant.hpp"
 #include "adaptor/boost/optional.hpp"
 #include "adaptor/boost/string_ref.hpp"
+#include "adaptor/boost/string_view.hpp"
 
 #endif // defined(MSGPACK_USE_BOOST)

include/msgpack/v1/adaptor/boost/string_view.hpp

@@ -0,0 +1,87 @@
+//
+// MessagePack for C++ static resolution 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_V1_TYPE_BOOST_STRING_VIEW_HPP
+#define MSGPACK_V1_TYPE_BOOST_STRING_VIEW_HPP
+
+#include <boost/version.hpp>
+#if (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 61
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/check_container_size.hpp"
+
+#include <boost/utility/string_view.hpp>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace adaptor {
+
+template <>
+struct convert<boost::string_view> {
+    msgpack::object const& operator()(msgpack::object const& o, boost::string_view& v) const {
+        switch (o.type) {
+        case msgpack::type::BIN:
+            v = boost::string_view(o.via.bin.ptr, o.via.bin.size);
+            break;
+        case msgpack::type::STR:
+            v = boost::string_view(o.via.str.ptr, o.via.str.size);
+            break;
+        default:
+            throw msgpack::type_error();
+            break;
+        }
+        return o;
+    }
+};
+
+template <>
+struct pack<boost::string_view> {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const boost::string_view& v) const {
+        uint32_t size = checked_get_container_size(v.size());
+        o.pack_str(size);
+        o.pack_str_body(v.data(), size);
+        return o;
+    }
+};
+
+template <>
+struct object<boost::string_view> {
+    void operator()(msgpack::object& o, const boost::string_view& v) const {
+        uint32_t size = checked_get_container_size(v.size());
+        o.type = msgpack::type::STR;
+        o.via.str.ptr = v.data();
+        o.via.str.size = size;
+    }
+};
+
+template <>
+struct object_with_zone<boost::string_view> {
+    void operator()(msgpack::object::with_zone& o, const boost::string_view& v) const {
+        static_cast<msgpack::object&>(o) << v;
+    }
+};
+
+
+} // namespace adaptor
+
+/// @cond
+} // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+} // namespace msgpack
+
+#endif // (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 53
+
+#endif // MSGPACK_V1_TYPE_BOOST_STRING_VIEW_HPP

test/CMakeLists.txt

@@ -45,6 +45,7 @@ IF (MSGPACK_BOOST)
         boost_variant.cpp
         boost_optional.cpp
         boost_string_ref.cpp
+        boost_string_view.cpp
     )
 ENDIF ()
 

test/boost_string_view.cpp

@@ -0,0 +1,47 @@
+#include <msgpack.hpp>
+#include <sstream>
+#include <iterator>
+#include <gtest/gtest.h>
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(MSGPACK_USE_BOOST)
+#if (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 61
+
+TEST(MSGPACK_BOOST, pack_convert_string_view)
+{
+    std::stringstream ss;
+    std::string s = "ABC";
+    boost::string_view val1(s);
+
+    msgpack::pack(ss, val1);
+
+    msgpack::object_handle oh;
+    msgpack::unpack(oh, ss.str().data(), ss.str().size());
+    boost::string_view val2 = oh.get().as<boost::string_view>();
+    EXPECT_TRUE(val1 == val2);
+}
+
+TEST(MSGPACK_BOOST, object_strinf_view)
+{
+    std::string s = "ABC";
+    boost::string_view val1(s);
+    msgpack::object obj(val1);
+    boost::string_view val2 = obj.as<boost::string_view>();
+    EXPECT_TRUE(val1 == val2);
+}
+
+TEST(MSGPACK_BOOST, object_with_zone_string_view)
+{
+    msgpack::zone z;
+    std::string s = "ABC";
+    boost::string_view val1(s);
+    msgpack::object obj(val1, z);
+    boost::string_view val2 = obj.as<boost::string_view>();
+    EXPECT_TRUE(val1 == val2);
+}
+
+#endif // (BOOST_VERSION / 100000) >= 1 && ((BOOST_VERSION / 100) % 1000) >= 61
+#endif // defined(MSGPACK_USE_BOOST)