/* * Copyright 2007-2017 Content Management AG * All rights reserved. * * author: Max Kellermann <mk@cm4all.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the * distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ODBUS_TYPES_HXX #define ODBUS_TYPES_HXX #include "util/TemplateString.hxx" #include <dbus/dbus.h> namespace ODBus { template<int type> struct BasicTypeTraits { static constexpr int TYPE = type; typedef TemplateString::CharAsString<TYPE> TypeAsString; }; template<typename T> struct TypeTraits { }; template<> struct TypeTraits<const char *> : BasicTypeTraits<DBUS_TYPE_STRING> { }; using StringTypeTraits = TypeTraits<const char *>; struct ObjectPathTypeTraits : BasicTypeTraits<DBUS_TYPE_OBJECT_PATH> { }; template<> struct TypeTraits<dbus_uint32_t> : BasicTypeTraits<DBUS_TYPE_UINT32> { }; using BooleanTypeTraits = BasicTypeTraits<DBUS_TYPE_BOOLEAN>; template<typename T> struct ArrayTypeTraits { typedef T ContainedTraits; static constexpr int TYPE = DBUS_TYPE_ARRAY; typedef TemplateString::InsertBefore<TYPE, typename ContainedTraits::TypeAsString> TypeAsString; }; template<typename KeyT, typename ValueT> struct DictEntryTypeTraits { static constexpr int TYPE = DBUS_TYPE_DICT_ENTRY; typedef TemplateString::Concat<TemplateString::CharAsString<DBUS_DICT_ENTRY_BEGIN_CHAR>, typename KeyT::TypeAsString, typename ValueT::TypeAsString, TemplateString::CharAsString<DBUS_DICT_ENTRY_END_CHAR>> TypeAsString; }; using VariantTypeTraits = BasicTypeTraits<DBUS_TYPE_VARIANT>; /** * Concatenate all TypeAsString members to one string. */ template<typename T, typename... ContainedTraits> struct ConcatTypeAsString : TemplateString::Concat<typename T::TypeAsString, ConcatTypeAsString<ContainedTraits...>> {}; template<typename T> struct ConcatTypeAsString<T> : T::TypeAsString {}; template<typename... ContainedTraits> struct StructTypeTraits { static constexpr int TYPE = DBUS_TYPE_STRUCT; typedef TemplateString::Concat<TemplateString::CharAsString<DBUS_STRUCT_BEGIN_CHAR>, ConcatTypeAsString<ContainedTraits...>, TemplateString::CharAsString<DBUS_STRUCT_END_CHAR>> TypeAsString; }; } /* namespace ODBus */ #endif