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1 | // |
2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | // | |
7 | // Official repository: https://github.com/boostorg/json | |
8 | // | |
9 | ||
10 | // Test that header file is self-contained. | |
11 | #include <boost/json/visit.hpp> | |
12 | ||
13 | #include "test_suite.hpp" | |
14 | ||
15 | BOOST_JSON_NS_BEGIN | |
16 | ||
17 | class visit_test | |
18 | { | |
19 | public: | |
20 | template<class T> | |
21 | void | |
22 | check_const(kind k, T t) | |
23 | { | |
24 | struct f | |
25 | { | |
26 | kind k; | |
27 | bool operator()(std::nullptr_t) { return k == kind::null; } | |
28 | bool operator()(bool) { return k == kind::bool_; } | |
29 | bool operator()(std::int64_t) { return k == kind::int64; } | |
30 | bool operator()(std::uint64_t) { return k == kind::uint64; } | |
31 | bool operator()(double) { return k == kind::double_; } | |
32 | bool operator()(string const&) { return k == kind::string; } | |
33 | bool operator()(array const&) { return k == kind::array; } | |
34 | bool operator()(object const&) { return k == kind::object; } | |
35 | bool operator()(...) { return false; } | |
36 | }; | |
37 | value const v(t); | |
38 | BOOST_TEST(visit(f{k}, v)); | |
39 | } | |
40 | ||
41 | template<class T> | |
42 | void | |
43 | check_mutable(kind k, T t) | |
44 | { | |
45 | struct f | |
46 | { | |
47 | kind k; | |
48 | bool operator()(std::nullptr_t) { return k == kind::null; } | |
49 | bool operator()(bool&) { return k == kind::bool_; } | |
50 | bool operator()(std::int64_t&) { return k == kind::int64; } | |
51 | bool operator()(std::uint64_t&) { return k == kind::uint64; } | |
52 | bool operator()(double&) { return k == kind::double_; } | |
53 | bool operator()(string&) { return k == kind::string; } | |
54 | bool operator()(array&) { return k == kind::array; } | |
55 | bool operator()(object&) { return k == kind::object; } | |
56 | bool operator()(...) { return false; } | |
57 | }; | |
58 | value v(t); | |
59 | BOOST_TEST(visit(f{k}, v)); | |
60 | } | |
61 | ||
62 | void | |
63 | testVisit() | |
64 | { | |
65 | check_const(kind::null, nullptr); | |
66 | check_const(kind::bool_, true); | |
67 | check_const(kind::int64, -1); | |
68 | check_const(kind::uint64, 1U); | |
69 | check_const(kind::double_, 3.14); | |
70 | check_const(kind::string, string_kind); | |
71 | check_const(kind::array, array_kind); | |
72 | check_const(kind::object, object_kind); | |
73 | ||
74 | check_mutable(kind::null, nullptr); | |
75 | check_mutable(kind::bool_, true); | |
76 | check_mutable(kind::int64, -1); | |
77 | check_mutable(kind::uint64, 1U); | |
78 | check_mutable(kind::double_, 3.14); | |
79 | check_mutable(kind::string, string_kind); | |
80 | check_mutable(kind::array, array_kind); | |
81 | check_mutable(kind::object, object_kind); | |
82 | } | |
83 | ||
84 | void run() | |
85 | { | |
86 | testVisit(); | |
87 | } | |
88 | }; | |
89 | ||
90 | TEST_SUITE(visit_test, "boost.json.visit"); | |
91 | ||
92 | BOOST_JSON_NS_END |