Diff: include/msgpack/adaptor/array_ref.hpp

Revision:

0:3f9dbf1e2cb0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/msgpack/adaptor/array_ref.hpp	Sat Feb 13 01:53:11 2016 +0000
@@ -0,0 +1,174 @@
+//
+// MessagePack for C++ static resolution routine
+//
+// Copyright (C) 2008-2009 FURUHASHI Sadayuki
+//
+//    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_ARRAY_REF_HPP
+#define MSGPACK_TYPE_ARRAY_REF_HPP
+
+#include "msgpack/versioning.hpp"
+#include "msgpack/adaptor/adaptor_base.hpp"
+#include "msgpack/adaptor/check_container_size.hpp"
+#include <cstring>
+#include <string>
+
+namespace msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+namespace type {
+
+template <typename T>
+struct array_ref {
+    array_ref() : data(nullptr) {}
+    array_ref(T& t) : data(&t) {}
+
+    T* data;
+
+    template <typename U>
+    bool operator==(array_ref<U> const& t) const {
+        return *data == *t.data;
+    }
+    template <typename U>
+    bool operator!=(array_ref<U> const& t) const {
+        return !(*data == *t.data);
+    }
+    template <typename U>
+    bool operator< (array_ref<U> const& t) const
+    {
+        return *data < *t.data;
+    }
+    template <typename U>
+    bool operator> (array_ref<U> const& t) const
+    {
+        return *t.data < *data;
+    }
+    template <typename U>
+    bool operator<= (array_ref<U> const& t) const
+    {
+        return !(*t.data < *data);
+    }
+    template <typename U>
+    bool operator>= (array_ref<U> const& t) const
+    {
+        return !(*data < *t.data);
+    }
+};
+
+template <typename T>
+inline array_ref<T const> make_array_ref(T const& t) {
+    return array_ref<T const>(t);
+}
+
+template <typename T>
+inline array_ref<T> make_array_ref(T& t) {
+    return array_ref<T>(t);
+}
+
+
+} // namespace type
+
+namespace adaptor {
+
+template <typename T>
+struct convert<msgpack::type::array_ref<T> > {
+    msgpack::object const& operator()(msgpack::object const& o, msgpack::type::array_ref<T>& v) const {
+        if (!v.data) { throw msgpack::type_error(); }
+        if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
+        if (v.data->size() < o.via.bin.size) { throw msgpack::type_error(); }
+        if (o.via.array.size > 0) {
+            msgpack::object* p = o.via.array.ptr;
+            msgpack::object* const pend = o.via.array.ptr + o.via.array.size;
+            typename T::iterator it = v.data->begin();
+            do {
+                p->convert(*it);
+                ++p;
+                ++it;
+            } while(p < pend);
+        }
+        return o;
+    }
+};
+
+template <typename T>
+struct convert<msgpack::type::array_ref<std::vector<T> > > {
+    msgpack::object const& operator()(msgpack::object const& o, msgpack::type::array_ref<std::vector<T> >& v) const {
+        if (!v.data) { throw msgpack::type_error(); }
+        if (o.type != msgpack::type::ARRAY) { throw msgpack::type_error(); }
+        v.data->resize(o.via.bin.size);
+        if (o.via.array.size > 0) {
+            msgpack::object* p = o.via.array.ptr;
+            msgpack::object* const pend = o.via.array.ptr + o.via.array.size;
+            typename std::vector<T>::iterator it = v.data->begin();
+            do {
+                p->convert(*it);
+                ++p;
+                ++it;
+            } while(p < pend);
+        }
+        return o;
+    }
+};
+
+template <typename T>
+struct pack<msgpack::type::array_ref<T> > {
+    template <typename Stream>
+    msgpack::packer<Stream>& operator()(msgpack::packer<Stream>& o, const msgpack::type::array_ref<T>& v) const {
+        if (!v.data) { throw msgpack::type_error(); }
+        uint32_t size = checked_get_container_size(v.data->size());
+        o.pack_array(size);
+        for (typename T::const_iterator it(v.data->begin()), it_end(v.data->end());
+            it != it_end; ++it) {
+            o.pack(*it);
+        }
+        return o;
+    }
+};
+
+template <typename T>
+struct object_with_zone<msgpack::type::array_ref<T> > {
+    void operator()(msgpack::object::with_zone& o, const msgpack::type::array_ref<T>& v) const {
+        if (!v.data) { throw msgpack::type_error(); }
+        o.type = msgpack::type::ARRAY;
+        if (v.data->empty()) {
+            o.via.array.ptr = nullptr;
+            o.via.array.size = 0;
+        }
+        else {
+            uint32_t size = checked_get_container_size(v.data->size());
+            msgpack::object* p = static_cast<msgpack::object*>(o.zone.allocate_align(sizeof(msgpack::object)*size));
+            msgpack::object* const pend = p + size;
+            o.via.array.ptr = p;
+            o.via.array.size = size;
+            typename T::const_iterator it(v.data->begin());
+            do {
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+                *p = msgpack::object(*it, o.zone);
+#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#endif // (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) && !defined(__clang__)
+                ++p;
+                ++it;
+            } while(p < pend);
+        }
+    }
+};
+
+} // namespace adaptor
+
+/// @cond
+} // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+} // namespace msgpack
+
+#endif // MSGPACK_TYPE_ARRAY_REF_HPP