projects / ceph.git / blame
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|---|---|---|
| 11fdf7f2 TL |
1 | |
| 2 | // Copyright (C) 2008-2018 Lorenzo Caminiti | |
| 3 | // Distributed under the Boost Software License, Version 1.0 (see accompanying | |
| 4 | // file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt). | |
| 5 | // See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html | |
| 6 | ||
| 7 | // Test overriding function never overrides protected function contract. | |
| 8 | ||
| 9 | #include "../detail/oteststream.hpp" | |
| 10 | #include <boost/contract/function.hpp> | |
| 11 | #include <boost/contract/public_function.hpp> | |
| 12 | #include <boost/contract/base_types.hpp> | |
| 13 | #include <boost/contract/check.hpp> | |
| 14 | #include <boost/detail/lightweight_test.hpp> | |
| 15 | #include <sstream> | |
| 16 | ||
| 17 | boost::contract::test::detail::oteststream out; | |
| 18 | ||
| 19 | struct b { | |
| 20 | static void static_invariant() { out << "b::static_inv" << std::endl; } | |
| 21 | void invariant() const { out << "b::inv" << std::endl; } | |
| 22 | ||
| 23 | protected: | |
| 24 | // NOTE: This is the correct way of programming contracts for overridden | |
| 25 | // protected and overriding public functions: Both must use virtual_ | |
| 26 | // (otherwise C++ won't override because mismatching parameters), but | |
| 27 | // overridden protected does not use public_function. | |
| 92f5a8d4 | 28 | virtual void f(boost::contract::virtual_* /* v */ = 0) { |
| 11fdf7f2 TL |
29 | boost::contract::check c = boost::contract::function() |
| 30 | .precondition([] { out << "b::f::pre" << std::endl; }) | |
| 31 | .old([] { out << "b::f::old" << std::endl; }) | |
| 32 | .postcondition([] { out << "b::f::post" << std::endl; }) | |
| 33 | ; | |
| 34 | out << "b::f::body" << std::endl; | |
| 35 | } | |
| 36 | }; | |
| 37 | struct a | |
| 38 | #define BASES public b | |
| 39 | : BASES | |
| 40 | { | |
| 41 | typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types; | |
| 42 | #undef BASES | |
| 43 | ||
| 44 | static void static_invariant() { out << "a::static_inv" << std::endl; } | |
| 45 | void invariant() const { out << "a::inv" << std::endl; } | |
| 46 | ||
| 47 | void f(boost::contract::virtual_* v = 0) /* not override */ { | |
| 48 | // C++ func a::f overrides b::f, but contracts don't (so no override_f). | |
| 49 | boost::contract::check c = boost::contract::public_function(v, this) | |
| 50 | .precondition([] { out << "a::f::pre" << std::endl; }) | |
| 51 | .old([] { out << "a::f::old" << std::endl; }) | |
| 52 | .postcondition([] { out << "a::f::post" << std::endl; }) | |
| 53 | ; | |
| 54 | out << "a::f::body" << std::endl; | |
| 55 | } | |
| 56 | }; | |
| 57 | ||
| 58 | int main() { | |
| 59 | std::ostringstream ok; | |
| 60 | ||
| 61 | a aa; | |
| 62 | out.str(""); | |
| 63 | aa.f(); | |
| 64 | ok.str(""); ok | |
| 65 | #ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS | |
| 66 | << "a::static_inv" << std::endl | |
| 67 | << "a::inv" << std::endl | |
| 68 | #endif | |
| 69 | #ifndef BOOST_CONTRACT_NO_PRECONDITIONS | |
| 70 | << "a::f::pre" << std::endl | |
| 71 | #endif | |
| 72 | #ifndef BOOST_CONTRACT_NO_OLDS | |
| 73 | << "a::f::old" << std::endl | |
| 74 | #endif | |
| 75 | << "a::f::body" << std::endl | |
| 76 | #ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS | |
| 77 | << "a::static_inv" << std::endl | |
| 78 | << "a::inv" << std::endl | |
| 79 | #endif | |
| 80 | #ifndef BOOST_CONTRACT_NO_POSTCONDITIONS | |
| 81 | << "a::f::post" << std::endl | |
| 82 | #endif | |
| 83 | ; | |
| 84 | BOOST_TEST(out.eq(ok.str())); | |
| 85 | ||
| 86 | return boost::report_errors(); | |
| 87 | } | |
| 88 |