std_pair.h

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/**
    @file
    @author  Alexander Sherikov
 
    @copyright 2017-2018 Alexander Sherikov, Licensed under the Apache License, Version 2.0.
    (see @ref LICENSE or http://www.apache.org/licenses/LICENSE-2.0)
 
    @brief
*/
 
#pragma once
 
#include <utility>
#include "../internal/helpers.h"
#include "../visitors/serialization.h"
 
namespace ariles2
{
    namespace read
    {
        template <class t_Visitor, typename t_First, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_read(
                t_Visitor &visitor,
                std::pair<t_First, t_Second> &entry,
                const typename t_Visitor::Parameters &parameters)
        {
            ARILES2_TRACE_FUNCTION;
            visitor.startMap(t_Visitor::SIZE_LIMIT_EQUAL, 2);
            visitor.visitMapEntry(entry.first, "first", parameters, true);
            visitor.visitMapEntry(entry.second, "second", parameters, true);
            visitor.endMap();
        }
 
 
        template <class t_Visitor, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_read(
                t_Visitor &visitor,
                std::pair<std::string, t_Second> &entry,
                const typename t_Visitor::Parameters &parameters)
        {
            ARILES2_TRACE_FUNCTION;
            // size = 0 is ok if missing entries are allowed (fallback to standard logic which is going to fail)
            // size > 1 is never ok, due to ambiguity.
            if (true == parameters.sloppy_pairs_ and true == visitor.startIteratedMap(t_Visitor::SIZE_LIMIT_EQUAL, 1))
            {
                ARILES2_ASSERT(
                        true == visitor.startIteratedMapElement(entry.first),
                        "Could not read first element of a sloppy pair.");
                apply_read(visitor, entry.second, parameters);
                visitor.endIteratedMapElement();
                visitor.endIteratedMap();
            }
            else
            {
                apply_read<t_Visitor, std::string, t_Second>(visitor, entry, parameters);
            }
        }
    }  // namespace read
}  // namespace ariles2
 
 
namespace ariles2
{
    namespace write
    {
        template <class t_Visitor, typename t_First, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_write(
                t_Visitor &writer,
                const std::pair<t_First, t_Second> &entry,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
            writer.startMap(param, 2);
            writer.visitMapEntry(entry.first, "first", param);
            writer.visitMapEntry(entry.second, "second", param);
            writer.endMap();
        }
 
 
 
        template <class t_Visitor, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_write(
                t_Visitor &writer,
                const std::pair<std::string, t_Second> &entry,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
            if (true == param.sloppy_pairs_)
            {
                if (true == writer.startIteratedMap(1, param))
                {
                    writer.startIteratedMapElement(entry.first);
                    apply_write(writer, entry.second, param);
                    writer.endIteratedMapElement();
                    writer.endIteratedMap();
                    return;
                }
            }
 
            // ? Gets mixed up with vector and fails.
            // apply_write<t_Visitor, std::string, t_Second>(writer, entry, param);
            writer.startMap(param, 2);
            writer.visitMapEntry(entry.first, "first", param);
            writer.visitMapEntry(entry.second, "second", param);
            writer.endMap();
        }
    }  // namespace write
}  // namespace ariles2
 
 
namespace ariles2
{
    namespace compare
    {
        template <class t_Visitor, typename t_First, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_compare(
                t_Visitor &visitor,
                const std::pair<t_First, t_Second> &left,
                const std::pair<t_First, t_Second> &right,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
 
            apply_compare(visitor, left.first, right.first, param);
            apply_compare(visitor, left.second, right.second, param);
        }
    }  // namespace compare
}  // namespace ariles2
 
 
 
namespace ariles2
{
    namespace defaults
    {
        template <class t_Visitor, typename t_First, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_defaults(
                const t_Visitor &visitor,
                std::pair<t_First, t_Second> &entry,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
            apply_defaults(visitor, entry.first, param);
            apply_defaults(visitor, entry.second, param);
        }
    }  // namespace defaults
}  // namespace ariles2
 
 
 
namespace ariles2
{
    namespace process
    {
        template <class t_Visitor, typename t_First, typename t_Second>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_process(
                const t_Visitor &visitor,
                std::pair<t_First, t_Second> &entry,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
            apply_process(visitor, entry.first, param);
            apply_process(visitor, entry.second, param);
        }
    }  // namespace process
}  // namespace ariles2
 
 
namespace ariles2
{
    namespace copyfrom
    {
        template <
                class t_Visitor,
                typename t_FirstLeft,
                typename t_SecondLeft,
                typename t_FirstRight,
                typename t_SecondRight>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_copyfrom(
                t_Visitor &visitor,
                std::pair<t_FirstLeft, t_SecondLeft> &left,
                const std::pair<t_FirstRight, t_SecondRight> &right,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
 
            apply_copyfrom(visitor, left.first, right.first, param);
            apply_copyfrom(visitor, left.second, right.second, param);
        }
    }  // namespace copyfrom
 
    namespace copyto
    {
        template <
                class t_Visitor,
                typename t_FirstLeft,
                typename t_SecondLeft,
                typename t_FirstRight,
                typename t_SecondRight>
        void ARILES2_VISIBILITY_ATTRIBUTE apply_copyto(
                t_Visitor &visitor,
                const std::pair<t_FirstLeft, t_SecondLeft> &left,
                std::pair<t_FirstRight, t_SecondRight> &right,
                const typename t_Visitor::Parameters &param)
        {
            ARILES2_TRACE_FUNCTION;
 
            apply_copyto(visitor, left.first, right.first, param);
            apply_copyto(visitor, left.second, right.second, param);
        }
    }  // namespace copyto
}  // namespace ariles2