File: comparisons.hpp

package info (click to toggle)
reflect-cpp 0.18.0%2Bds-3
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 12,524 kB
  • sloc: cpp: 44,484; python: 131; makefile: 30; sh: 3
file content (157 lines) | stat: -rw-r--r-- 5,170 bytes parent folder | download
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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
#ifndef RFL_COMPARISONS_HPP_
#define RFL_COMPARISONS_HPP_

#include <type_traits>

#include "Result.hpp"
#include "parsing/schema/ValidationType.hpp"

namespace rfl {

template <auto _threshold>
struct EqualTo {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value != threshold) {
      return error("Value expected to be equal to " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::EqualTo{.value_ = value}};
  }
};

template <auto _threshold>
struct Minimum {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value < threshold) {
      return error("Value expected to be greater than or equal to " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::Minimum{.value_ = value}};
  }
};

template <auto _threshold>
struct ExclusiveMinimum {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value <= threshold) {
      return error("Value expected to be greater than " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::ExclusiveMinimum{.value_ = value}};
  }
};

template <auto _threshold>
struct Maximum {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value > threshold) {
      return error("Value expected to be less than or equal to " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::Maximum{.value_ = value}};
  }
};

template <auto _threshold>
struct ExclusiveMaximum {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value >= threshold) {
      return error("Value expected to be less than " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::ExclusiveMaximum{.value_ = value}};
  }
};

template <auto _threshold>
struct NotEqualTo {
  template <class T>
  static Result<T> validate(T _value) noexcept {
    constexpr auto threshold = static_cast<T>(_threshold);
    if (_value == threshold) {
      return error("Value expected to not be equal to " +
                   std::to_string(threshold) + ", but got " +
                   std::to_string(_value) + ".");
    }
    return _value;
  }

  template <class T>
  static parsing::schema::ValidationType to_schema() {
    using ValidationType = parsing::schema::ValidationType;
    const auto value =
        std::is_floating_point_v<T>
            ? rfl::Variant<double, int>(static_cast<double>(_threshold))
            : rfl::Variant<double, int>(static_cast<int>(_threshold));
    return ValidationType{ValidationType::NotEqualTo{.value_ = value}};
  }
};

}  // namespace rfl

#endif