visit.cpp
2.84 KB
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
//
// Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// Official repository: https://github.com/boostorg/json
//
// Test that header file is self-contained.
#include <boost/json/visit.hpp>
#include "test_suite.hpp"
BOOST_JSON_NS_BEGIN
class visit_test
{
public:
template<class T>
void
check_const(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t) { return k == kind::null; }
bool operator()(bool) { return k == kind::bool_; }
bool operator()(std::int64_t) { return k == kind::int64; }
bool operator()(std::uint64_t) { return k == kind::uint64; }
bool operator()(double) { return k == kind::double_; }
bool operator()(string const&) { return k == kind::string; }
bool operator()(array const&) { return k == kind::array; }
bool operator()(object const&) { return k == kind::object; }
bool operator()(...) { return false; }
};
value const v(t);
BOOST_TEST(visit(f{k}, v));
}
template<class T>
void
check_mutable(kind k, T t)
{
struct f
{
kind k;
bool operator()(std::nullptr_t) { return k == kind::null; }
bool operator()(bool&) { return k == kind::bool_; }
bool operator()(std::int64_t&) { return k == kind::int64; }
bool operator()(std::uint64_t&) { return k == kind::uint64; }
bool operator()(double&) { return k == kind::double_; }
bool operator()(string&) { return k == kind::string; }
bool operator()(array&) { return k == kind::array; }
bool operator()(object&) { return k == kind::object; }
bool operator()(...) { return false; }
};
value v(t);
BOOST_TEST(visit(f{k}, v));
}
void
testVisit()
{
check_const(kind::null, nullptr);
check_const(kind::bool_, true);
check_const(kind::int64, -1);
check_const(kind::uint64, 1U);
check_const(kind::double_, 3.14);
check_const(kind::string, string_kind);
check_const(kind::array, array_kind);
check_const(kind::object, object_kind);
check_mutable(kind::null, nullptr);
check_mutable(kind::bool_, true);
check_mutable(kind::int64, -1);
check_mutable(kind::uint64, 1U);
check_mutable(kind::double_, 3.14);
check_mutable(kind::string, string_kind);
check_mutable(kind::array, array_kind);
check_mutable(kind::object, object_kind);
}
void run()
{
testVisit();
}
};
TEST_SUITE(visit_test, "boost.json.visit");
BOOST_JSON_NS_END