89 lines
3.2 KiB
C++
89 lines
3.2 KiB
C++
// Copyright (c) 2023, 2024, Oracle and/or its affiliates.
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License, version 2.0,
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// as published by the Free Software Foundation.
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//
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// This program is designed to work with certain software (including
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// but not limited to OpenSSL) that is licensed under separate terms,
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// as designated in a particular file or component or in included license
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// documentation. The authors of MySQL hereby grant you an additional
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// permission to link the program and your derivative works with the
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// separately licensed software that they have either included with
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// the program or referenced in the documentation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License, version 2.0, for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef MYSQL_SERIALIZATION_FIELD_DEFINITION_HELPERS_H
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#define MYSQL_SERIALIZATION_FIELD_DEFINITION_HELPERS_H
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#include "mysql/serialization/field_definition.h"
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#include "mysql/serialization/field_functor.h"
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#include "mysql/serialization/serializable.h"
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#include "mysql/serialization/serialization_types.h"
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/// @brief helpers aimed at deducing Field_type in case size is provided,
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/// and basic field and compound field definitions
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/// @file
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/// Experimental API header
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/// @addtogroup GroupLibsMysqlSerialization
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/// @{
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namespace mysql::serialization {
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template <class Type>
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constexpr std::size_t get_default_type_size() {
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return 0;
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}
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template <Field_size size, typename Field_type, typename... Args>
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auto define_field_with_size(Field_type &arg, Args &&...args) {
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return Field_definition<Field_type, size>(arg, std::forward<Args>(args)...);
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}
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template <typename Field_type, typename... Args>
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auto define_field(Field_type &arg, Args &&...args) {
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return Field_definition<Field_type, get_default_type_size<Field_type>()>(
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arg, std::forward<Args>(args)...);
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}
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template <typename Field_type, typename... Args>
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auto define_field(const Field_type &arg, Args &&...args) {
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return Field_definition<const Field_type,
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get_default_type_size<Field_type>()>(
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arg, std::forward<Args>(args)...);
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}
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template <class Serializable_derived>
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auto define_compound_field(Serializable<Serializable_derived> &arg) {
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return std::ref(arg);
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}
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template <class Serializable_derived>
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auto define_compound_field(const Serializable<Serializable_derived> &arg) {
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return std::cref(arg);
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}
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template <class Serializable_derived>
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auto define_compound_field(const Serializable<Serializable_derived> &arg,
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const Unknown_field_policy &policy) {
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Serializable<Serializable_derived> &n_arg =
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const_cast<Serializable<Serializable_derived> &>(arg);
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n_arg.set_unknown_field_policy(policy);
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return std::cref(arg);
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}
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} // namespace mysql::serialization
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/// @}
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#endif // MYSQL_SERIALIZATION_FIELD_DEFINITION_HELPERS_H
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