File: normal.hpp

package info (click to toggle)
tao-json 0.0%2Bgit20200604.f357d72-2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye
  • size: 8,900 kB
  • sloc: cpp: 48,129; makefile: 55
file content (87 lines) | stat: -rw-r--r-- 3,137 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
// Copyright (c) 2014-2020 Dr. Colin Hirsch and Daniel Frey
// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/

#ifndef TAO_JSON_PEGTL_NORMAL_HPP
#define TAO_JSON_PEGTL_NORMAL_HPP

#include <string>
#include <type_traits>
#include <utility>

#include "apply_mode.hpp"
#include "config.hpp"
#include "demangle.hpp"
#include "match.hpp"
#include "parse_error.hpp"
#include "rewind_mode.hpp"

#include "internal/enable_control.hpp"
#include "internal/has_match.hpp"

namespace TAO_JSON_PEGTL_NAMESPACE
{
   template< typename Rule >
   struct normal
   {
      static constexpr bool enable = internal::enable_control< Rule >;

      template< typename ParseInput, typename... States >
      static void start( const ParseInput& /*unused*/, States&&... /*unused*/ ) noexcept
      {}

      template< typename ParseInput, typename... States >
      static void success( const ParseInput& /*unused*/, States&&... /*unused*/ ) noexcept
      {}

      template< typename ParseInput, typename... States >
      static void failure( const ParseInput& /*unused*/, States&&... /*unused*/ ) noexcept
      {}

      template< typename ParseInput, typename... States >
      [[noreturn]] static void raise( const ParseInput& in, States&&... /*unused*/ )
      {
         throw parse_error( "parse error matching " + std::string( demangle< Rule >() ), in );
      }

      template< template< typename... > class Action,
                typename Iterator,
                typename ParseInput,
                typename... States >
      static auto apply( const Iterator& begin, const ParseInput& in, States&&... st ) noexcept( noexcept( Action< Rule >::apply( std::declval< const typename ParseInput::action_t& >(), st... ) ) )
         -> decltype( Action< Rule >::apply( std::declval< const typename ParseInput::action_t& >(), st... ) )
      {
         const typename ParseInput::action_t action_input( begin, in );
         return Action< Rule >::apply( action_input, st... );
      }

      template< template< typename... > class Action,
                typename ParseInput,
                typename... States >
      static auto apply0( const ParseInput& /*unused*/, States&&... st ) noexcept( noexcept( Action< Rule >::apply0( st... ) ) )
         -> decltype( Action< Rule >::apply0( st... ) )
      {
         return Action< Rule >::apply0( st... );
      }

      template< apply_mode A,
                rewind_mode M,
                template< typename... >
                class Action,
                template< typename... >
                class Control,
                typename ParseInput,
                typename... States >
      [[nodiscard]] static bool match( ParseInput& in, States&&... st )
      {
         if constexpr( internal::has_match< bool, Rule, A, M, Action, Control, ParseInput, States... > ) {
            return Action< Rule >::template match< Rule, A, M, Action, Control >( in, st... );
         }
         else {
            return TAO_JSON_PEGTL_NAMESPACE::match< Rule, A, M, Action, Control >( in, st... );
         }
      }
   };

}  // namespace TAO_JSON_PEGTL_NAMESPACE

#endif