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1 | // Copyright (c) 2018-2020 Emil Dotchevski and Reverge Studios, Inc. |
2 | ||
3 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
4 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
5 | ||
6 | #include <boost/leaf/detail/config.hpp> | |
7 | #if defined(BOOST_LEAF_NO_EXCEPTIONS) || defined(BOOST_LEAF_NO_THREADS) | |
8 | ||
9 | #include <iostream> | |
10 | ||
11 | int main() | |
12 | { | |
13 | std::cout << "Unit test not applicable." << std::endl; | |
14 | return 0; | |
15 | } | |
16 | ||
17 | #else | |
18 | ||
19 | #include <boost/leaf/on_error.hpp> | |
20 | #include <boost/leaf/handle_errors.hpp> | |
21 | #include <boost/leaf/result.hpp> | |
22 | #include "lightweight_test.hpp" | |
23 | ||
24 | namespace leaf = boost::leaf; | |
25 | ||
26 | template <int> | |
27 | struct info | |
28 | { | |
29 | int value; | |
30 | }; | |
31 | ||
32 | template <class Thrower> | |
33 | void g1( Thrower th ) | |
34 | { | |
35 | auto load = leaf::on_error( info<1>{} ); | |
36 | th(); | |
37 | } | |
38 | ||
39 | template <class Thrower> | |
40 | void g2( Thrower th ) | |
41 | { | |
42 | auto load = leaf::on_error(info<3>{}, info<2>{} ); | |
43 | th(); | |
44 | } | |
45 | ||
46 | template <class Thrower> | |
47 | void f1( Thrower th ) | |
48 | { | |
49 | return g1(th); | |
50 | } | |
51 | ||
52 | template <class Thrower> | |
53 | void f2( Thrower th ) | |
54 | { | |
55 | return g2(th); | |
56 | } | |
57 | ||
58 | int main() | |
59 | { | |
60 | BOOST_TEST_EQ(1, | |
61 | leaf::try_catch( | |
62 | [] | |
63 | { | |
64 | f1( [] { throw leaf::exception(); } ); | |
65 | return 0; | |
66 | }, | |
67 | []( leaf::error_info const & err, info<1> ) | |
68 | { | |
69 | BOOST_TEST_EQ(err.error().value(), 1); | |
70 | return 1; | |
71 | }, | |
72 | []( info<2> ) | |
73 | { | |
74 | return 2; | |
75 | }, | |
76 | []( info<1>, info<2> ) | |
77 | { | |
78 | return 3; | |
79 | } )); | |
80 | ||
81 | BOOST_TEST_EQ(2, | |
82 | leaf::try_catch( | |
83 | [] | |
84 | { | |
85 | f2( [] { throw leaf::exception(); } ); | |
86 | return 0; | |
87 | }, | |
88 | []( info<1> ) | |
89 | { | |
90 | return 1; | |
91 | }, | |
92 | []( leaf::error_info const & err, info<2>, info<3> ) | |
93 | { | |
94 | BOOST_TEST_EQ(err.error().value(), 9); | |
95 | return 2; | |
96 | }, | |
97 | []( info<1>, info<2> ) | |
98 | { | |
99 | return 3; | |
100 | } )); | |
101 | ||
102 | BOOST_TEST_EQ(1, | |
103 | leaf::try_catch( | |
104 | [] | |
105 | { | |
106 | f1( [] { throw std::exception(); } ); | |
107 | return 0; | |
108 | }, | |
109 | []( leaf::error_info const & err, info<1> ) | |
110 | { | |
111 | BOOST_TEST_EQ(err.error().value(), 17); | |
112 | return 1; | |
113 | }, | |
114 | []( info<2> ) | |
115 | { | |
116 | return 2; | |
117 | }, | |
118 | []( info<1>, info<2> ) | |
119 | { | |
120 | return 3; | |
121 | } ) ); | |
122 | ||
123 | BOOST_TEST_EQ(2, | |
124 | leaf::try_catch( | |
125 | [] | |
126 | { | |
127 | f2( [] { throw std::exception(); } ); | |
128 | return 0; | |
129 | }, | |
130 | []( info<1> ) | |
131 | { | |
132 | return 1; | |
133 | }, | |
134 | []( leaf::error_info const & err, info<2>, info<3> ) | |
135 | { | |
136 | BOOST_TEST_EQ(err.error().value(), 21); | |
137 | return 2; | |
138 | }, | |
139 | []( info<1>, info<2> ) | |
140 | { | |
141 | return 3; | |
142 | } )); | |
143 | ||
144 | return boost::report_errors(); | |
145 | } | |
146 | ||
147 | #endif |