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1e59de90 | 1 | // Copyright 2018-2022 Emil Dotchevski and Reverge Studios, Inc. |
20effc67 TL |
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 | ||
1e59de90 TL |
6 | #ifdef BOOST_LEAF_TEST_SINGLE_HEADER |
7 | # include "leaf.hpp" | |
8 | #else | |
9 | # include <boost/leaf/on_error.hpp> | |
10 | # include <boost/leaf/handle_errors.hpp> | |
11 | # include <boost/leaf/result.hpp> | |
12 | #endif | |
13 | ||
20effc67 TL |
14 | #include "lightweight_test.hpp" |
15 | ||
16 | namespace leaf = boost::leaf; | |
17 | ||
18 | template <int A> | |
19 | struct info | |
20 | { | |
21 | int value; | |
22 | }; | |
23 | ||
24 | leaf::error_id f0() | |
25 | { | |
26 | auto load = leaf::on_error( info<0>{-1} ); | |
27 | return leaf::new_error( info<1>{-1} ); | |
28 | } | |
29 | ||
30 | leaf::error_id f1() | |
31 | { | |
32 | auto load = leaf::on_error(info<0>{}, info<1>{1}, info<2>{2} ); | |
33 | (void) f0(); | |
34 | return leaf::new_error(); | |
35 | } | |
36 | ||
37 | leaf::error_id f2() | |
38 | { | |
39 | return f1().load( info<3>{3} ); | |
40 | } | |
41 | ||
42 | int main() | |
43 | { | |
44 | int r = leaf::try_handle_all( | |
45 | []() -> leaf::result<int> | |
46 | { | |
47 | return f2(); | |
48 | }, | |
49 | []( info<0> i0, info<1> i1, info<2> i2, info<3> i3 ) | |
50 | { | |
51 | BOOST_TEST_EQ(i0.value, 0); | |
52 | BOOST_TEST_EQ(i1.value, 1); | |
53 | BOOST_TEST_EQ(i2.value, 2); | |
54 | BOOST_TEST_EQ(i3.value, 3); | |
55 | return 1; | |
56 | }, | |
57 | [] | |
58 | { | |
59 | return 2; | |
60 | } ); | |
61 | BOOST_TEST_EQ(r, 1); | |
62 | ||
63 | return boost::report_errors(); | |
64 | } |