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
|
#ifndef RFL_PARSING_PARSER_UNIQUE_PTR_HPP_
#define RFL_PARSING_PARSER_UNIQUE_PTR_HPP_
#include <map>
#include <memory>
#include <type_traits>
#include "../Ref.hpp"
#include "../Result.hpp"
#include "../always_false.hpp"
#include "Parent.hpp"
#include "Parser_base.hpp"
#include "schema/Type.hpp"
#include "schemaful/IsSchemafulReader.hpp"
#include "schemaful/IsSchemafulWriter.hpp"
#include "schemaful/UniquePtrReader.hpp"
namespace rfl {
namespace parsing {
template <class R, class W, class T, class ProcessorsType>
requires AreReaderAndWriter<R, W, std::unique_ptr<T>>
struct Parser<R, W, std::unique_ptr<T>, ProcessorsType> {
using InputVarType = typename R::InputVarType;
using ParentType = Parent<W>;
static Result<std::unique_ptr<T>> read(const R& _r,
const InputVarType& _var) noexcept {
if constexpr (schemaful::IsSchemafulReader<R>) {
using S = schemaful::UniquePtrReader<R, W, std::remove_cvref_t<T>,
ProcessorsType>;
const auto to_unique = [&](const auto& _u) -> Result<std::unique_ptr<T>> {
return _r.template read_union<std::unique_ptr<T>, S>(_u);
};
return _r.to_union(_var).and_then(to_unique);
} else {
if (_r.is_empty(_var)) {
return std::unique_ptr<T>();
}
return Parser<R, W, std::remove_cvref_t<T>, ProcessorsType>::read(_r,
_var)
.transform([](T&& _t) { return std::make_unique<T>(std::move(_t)); });
}
}
template <class P>
static void write(const W& _w, const std::unique_ptr<T>& _s,
const P& _parent) noexcept {
if constexpr (schemaful::IsSchemafulWriter<W>) {
auto u = ParentType::add_union(_w, _parent);
using UnionType = typename ParentType::template Union<decltype(u)>;
auto p =
UnionType{.index_ = static_cast<size_t>(_s ? 0 : 1), .union_ = &u};
if (_s) {
Parser<R, W, std::remove_cvref_t<T>, ProcessorsType>::write(_w, *_s, p);
} else {
ParentType::add_null(_w, p);
}
} else {
if (_s) {
Parser<R, W, std::remove_cvref_t<T>, ProcessorsType>::write(_w, *_s,
_parent);
} else {
ParentType::add_null(_w, _parent);
}
}
}
static schema::Type to_schema(
std::map<std::string, schema::Type>* _definitions) {
using U = std::remove_cvref_t<T>;
return schema::Type{schema::Type::Optional{Ref<schema::Type>::make(
Parser<R, W, U, ProcessorsType>::to_schema(_definitions))}};
}
};
} // namespace parsing
} // namespace rfl
#endif
|
