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       1                 :            : // *****************************************************************************
       2                 :            : /*!
       3                 :            :   \file      src/Base/TaggedTupleDeepPrint.hpp
       4                 :            :   \copyright 2012-2015 J. Bakosi,
       5                 :            :              2016-2018 Los Alamos National Security, LLC.,
       6                 :            :              2019-2021 Triad National Security, LLC.
       7                 :            :              All rights reserved. See the LICENSE file for details.
       8                 :            :   \brief     Structured TaggedTuple printer with depth/indentation
       9                 :            :   \details   Structured TaggedTuple printer with depth/indentation.
      10                 :            : */
      11                 :            : // *****************************************************************************
      12                 :            : #ifndef TaggedTupleDeepPrint_h
      13                 :            : #define TaggedTupleDeepPrint_h
      14                 :            : 
      15                 :            : #include <ostream>
      16                 :            : 
      17                 :            : #include <brigand/algorithms/for_each.hpp>
      18                 :            : #include <brigand/sequences/has_key.hpp>
      19                 :            : 
      20                 :            : #include "NoWarning/format.hpp"
      21                 :            : #include "NoWarning/set.hpp"
      22                 :            : 
      23                 :            : #include "Has.hpp"
      24                 :            : 
      25                 :            : // The include order here is important: it populates the overloads of
      26                 :            : // operator<< for various types, followed by TaggedTuple, the (simple)
      27                 :            : // TaggedTuplePrint (which will be accessible by the upstream, simpler
      28                 :            : // operator<< for vector, map, etc.) and finally, the most complex TaggedTuple
      29                 :            : // printer with depth, defined below.
      30                 :            : #include "PrintUtil.hpp"
      31                 :            : #include "TaggedTuple.hpp"
      32                 :            : #include "TaggedTuplePrint.hpp"
      33                 :            : 
      34                 :            : namespace tk {
      35                 :            : 
      36                 :            : //! Function object type to print contents of a TaggedTuple at depth
      37                 :            : //! \details Compared to tk::TuplePrinter this prints every key and value
      38                 :            : //!   in a new line and nested tagged tuples starts at increasing depths
      39                 :            : //!   (indents).
      40                 :            : //! \tparam List brigand::list of types in the tagged tuple
      41                 :            : //! \tparam Ignore brigand::list of types to not print
      42                 :            : template< class List, class Ignore = brigand::set<> >
      43                 :            : struct DeepTuplePrinter {
      44                 :            :   std::ostream& os;
      45                 :            :   const tk::TaggedTuple< List >& tuple;
      46                 :            :   std::size_t& depth;
      47                 :            :   //! Constructor
      48                 :       2516 :   DeepTuplePrinter( std::ostream& s, const tk::TaggedTuple< List >& t,
      49                 :       2516 :                     std::size_t& d ) : os(s), tuple(t), depth(d) {}
      50                 :            :   //! Function call operator templated on the type being output
      51                 :      34798 :   template< typename Key > void operator()( brigand::type_<Key> ) {
      52                 :            :     using ignored = brigand::has_key< Ignore, Key >;
      53                 :            :     if constexpr( std::is_same_v< ignored, brigand::false_type > ) {
      54                 :            :       using Tuple = tk::TaggedTuple< List >;
      55                 :            :       const auto& key = Key::name();
      56         [ +  - ]:      34798 :       const auto& value = tuple.template get< Key >();
      57                 :            :       if constexpr( Tuple::template is_tagged_tuple< Key >::value ) {
      58         [ +  - ]:       3924 :         std::string indent( depth * 2, ' ' );
      59 [ +  - ][ +  - ]:       7848 :         os << '\n' << indent << '\'' << key << "' {";
         [ +  - ][ +  - ]
      60                 :            :         using ituple = typename Tuple::template TupleElement< Key >;
      61                 :            :         using ikeys = typename ituple::Keys;
      62                 :            :         using ilist = typename ituple::PairList;
      63         [ -  - ]:       1320 :         brigand::for_each< ikeys >(
      64         [ +  - ]:       3924 :           DeepTuplePrinter< ilist, Ignore >( os, value, ++depth ) );
      65 [ +  - ][ +  - ]:       3924 :         os << '\n' << indent << '}';
      66         [ -  + ]:       3924 :         --depth;
      67                 :            :       } else {
      68         [ +  - ]:      30874 :         std::string indent( depth * 2, ' ' );
      69 [ +  - ][ +  - ]:      61748 :         os << boost::format("\n%s%-15s : ") % indent % key;
                 [ -  - ]
      70         [ +  - ]:      30874 :         os << std::boolalpha << value;
      71                 :            :       }
      72                 :            :     }
      73                 :      34798 :   }
      74                 :            : };
      75                 :            : 
      76                 :            : //! Output command line object (a TaggedTuple) to file
      77                 :            : //! \tparam Tuple Tuple object type
      78                 :            : //! \param[in,out] os Output stream to print to
      79                 :            : //! \param[in] name Name of (root) Tuple
      80                 :            : //! \param[in] c Command line object to output to file
      81                 :            : template< class Tuple >
      82                 :         99 : void print( std::ostream& os, const std::string& name, const Tuple& c ) {
      83                 :            :   static_assert( tk::HasTypedef_i_am_tagged_tuple_v< Tuple > );
      84                 :            :   using Keys = typename Tuple::Keys;
      85                 :            :   using Ignore = typename Tuple::ignore;
      86                 :            :   using List = typename Tuple::PairList;
      87                 :         99 :   os << "# vim: filetype=sh:\n#\n"
      88                 :            :         "# Contents of a tagged tuple.\n#\n"
      89                 :            :         "# A string in single quotes denotes the name/tag of a (nested)\n"
      90                 :            :         "# tagged tuple. The contents of tuples are enclosed within braces.\n"
      91                 :            :         "# Vectors are enclosed within square brackets. Keys of associative\n"
      92                 :            :         "# containers are in paretheses.\n\n";
      93                 :         99 :   os << '\'' << name << "' {";
      94                 :         99 :   std::size_t depth = 1;
      95                 :         99 :   brigand::for_each< Keys >( DeepTuplePrinter< List, Ignore >( os, c, depth ) );
      96                 :         99 :   os << "\n}";
      97                 :         99 : }
      98                 :            : 
      99                 :            : } // tk::
     100                 :            : 
     101                 :            : #endif // TaggedTupleDeepPrint_h