307 lines
9.7 KiB
C++
307 lines
9.7 KiB
C++
|
|
// Copyright (C) 2008-2018 Lorenzo Caminiti
|
|
// Distributed under the Boost Software License, Version 1.0 (see accompanying
|
|
// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
|
|
// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
|
|
|
|
// Test destructor subcontracting.
|
|
|
|
#include "../detail/oteststream.hpp"
|
|
#include "../detail/counter.hpp"
|
|
#include <boost/contract/destructor.hpp>
|
|
#include <boost/contract/base_types.hpp>
|
|
#include <boost/contract/assert.hpp>
|
|
#include <boost/contract/old.hpp>
|
|
#include <boost/contract/check.hpp>
|
|
#include <boost/preprocessor/control/iif.hpp>
|
|
#include <boost/detail/lightweight_test.hpp>
|
|
#include <sstream>
|
|
|
|
boost::contract::test::detail::oteststream out;
|
|
|
|
template<char Id>
|
|
struct t {
|
|
static void static_invariant() {
|
|
out << Id << "::static_inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(l.value >= 0);
|
|
}
|
|
|
|
void invariant() const {
|
|
out << Id << "::inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(k_ < 0);
|
|
}
|
|
|
|
struct l_tag;
|
|
typedef boost::contract::test::detail::counter<l_tag, int> l_type;
|
|
static l_type l;
|
|
|
|
explicit t() : k_(-1) { ++l.value; }
|
|
|
|
virtual ~t() {
|
|
boost::contract::old_ptr<l_type> old_l;
|
|
boost::contract::check c = boost::contract::destructor(this)
|
|
.old([&] {
|
|
out << Id << "::dtor::old" << std::endl;
|
|
old_l = BOOST_CONTRACT_OLDOF(l_type::eval(l));
|
|
})
|
|
.postcondition([&old_l] {
|
|
out << Id << "::dtor::post" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(t<Id>::l.value == old_l->value - 1);
|
|
})
|
|
;
|
|
out << Id << "::dtor::body" << std::endl;
|
|
--l.value;
|
|
}
|
|
|
|
private:
|
|
int k_;
|
|
};
|
|
template<char Id> typename t<Id>::l_type t<Id>::l;
|
|
|
|
// Test deep inheritance (2 vertical levels), multiple inheritance (4
|
|
// horizontal levels), and that all public/protected/private part of
|
|
// subcontracting for destructors (not just public, because all access levels
|
|
// are part of C++ object destruction mechanism).
|
|
struct c
|
|
#define BASES public t<'d'>, protected t<'p'>, private t<'q'>, public t<'e'>
|
|
: BASES
|
|
{
|
|
typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
|
|
#undef BASES
|
|
|
|
static void static_invariant() {
|
|
out << "c::static_inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(m.value >= 0);
|
|
}
|
|
|
|
void invariant() const {
|
|
out << "c::inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(j_ < 0);
|
|
}
|
|
|
|
struct m_tag;
|
|
typedef boost::contract::test::detail::counter<m_tag, int> m_type;
|
|
static m_type m;
|
|
|
|
explicit c() : j_(-1) { ++m.value; }
|
|
|
|
virtual ~c() {
|
|
boost::contract::old_ptr<m_type> old_m =
|
|
BOOST_CONTRACT_OLDOF(m_type::eval(m));
|
|
boost::contract::check c = boost::contract::destructor(this)
|
|
.old([] {
|
|
out << "c::dtor::old" << std::endl;
|
|
// Test old-of assignment above instead.
|
|
})
|
|
.postcondition([&old_m] {
|
|
out << "c::dtor::post" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(c::m.value == old_m->value - 1);
|
|
})
|
|
;
|
|
out << "c::dtor::body" << std::endl;
|
|
--m.value;
|
|
}
|
|
|
|
private:
|
|
int j_;
|
|
};
|
|
c::m_type c::m;
|
|
|
|
// Test not (fully) contracted base is not part of destructor subcontracting.
|
|
struct b {
|
|
static void static_invariant() { out << "b::static_inv" << std::endl; }
|
|
void invariant() const { out << "b::inv" << std::endl; }
|
|
|
|
explicit b() {}
|
|
virtual ~b() {} // No contract.
|
|
};
|
|
|
|
struct a_n_tag; // Global decl so visible in MSVC10 lambdas.
|
|
typedef boost::contract::test::detail::counter<a_n_tag, int> a_n_type;
|
|
|
|
// Test destructor with both non-contracted and contracted bases.
|
|
struct a
|
|
#define BASES public b, public c
|
|
: BASES
|
|
{
|
|
typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
|
|
#undef BASES
|
|
|
|
static void static_invariant() {
|
|
out << "a::static_inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(n.value >= 0);
|
|
}
|
|
|
|
void invariant() const {
|
|
out << "a::inv" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(i_ < 0);
|
|
}
|
|
|
|
static a_n_type n;
|
|
|
|
explicit a() : i_(-1) {
|
|
++i_; --i_; // To avoid a warning when all contracts off.
|
|
++n.value;
|
|
}
|
|
|
|
virtual ~a() {
|
|
boost::contract::old_ptr<a_n_type> old_n;
|
|
boost::contract::check c = boost::contract::destructor(this)
|
|
.old([&] {
|
|
out << "a::dtor::old" << std::endl;
|
|
old_n = BOOST_CONTRACT_OLDOF(a_n_type::eval(n));
|
|
})
|
|
.postcondition([&old_n] {
|
|
out << "a::dtor::post" << std::endl;
|
|
BOOST_CONTRACT_ASSERT(a::n.value == old_n->value - 1);
|
|
})
|
|
;
|
|
out << "a::dtor::body" << std::endl;
|
|
--n.value;
|
|
}
|
|
|
|
private:
|
|
int i_;
|
|
};
|
|
a_n_type a::n;
|
|
|
|
int main() {
|
|
std::ostringstream ok;
|
|
|
|
{
|
|
a aa;
|
|
out.str("");
|
|
} // Call aa's destructor.
|
|
ok.str(""); ok
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "a::static_inv" << std::endl
|
|
<< "a::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "a::dtor::old" << std::endl
|
|
#endif
|
|
<< "a::dtor::body" << std::endl
|
|
// Test static inv, but not const inv, checked after destructor body.
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "a::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "a::dtor::post" << std::endl
|
|
#endif
|
|
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "c::static_inv" << std::endl
|
|
<< "c::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "c::dtor::old" << std::endl
|
|
#endif
|
|
<< "c::dtor::body" << std::endl
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "c::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "c::dtor::post" << std::endl
|
|
#endif
|
|
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "e::static_inv" << std::endl
|
|
<< "e::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "e::dtor::old" << std::endl
|
|
#endif
|
|
<< "e::dtor::body" << std::endl
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "e::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "e::dtor::post" << std::endl
|
|
#endif
|
|
|
|
// Test check also private bases (because part of C++ destruction).
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "q::static_inv" << std::endl
|
|
<< "q::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "q::dtor::old" << std::endl
|
|
#endif
|
|
<< "q::dtor::body" << std::endl
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "q::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "q::dtor::post" << std::endl
|
|
#endif
|
|
|
|
// Test check also protected bases (because part of C++ destruction).
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "p::static_inv" << std::endl
|
|
<< "p::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "p::dtor::old" << std::endl
|
|
#endif
|
|
<< "p::dtor::body" << std::endl
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "p::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "p::dtor::post" << std::endl
|
|
#endif
|
|
|
|
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
|
|
<< "d::static_inv" << std::endl
|
|
<< "d::inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
<< "d::dtor::old" << std::endl
|
|
#endif
|
|
<< "d::dtor::body" << std::endl
|
|
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
|
|
<< "d::static_inv" << std::endl
|
|
#endif
|
|
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
|
|
<< "d::dtor::post" << std::endl
|
|
#endif
|
|
;
|
|
BOOST_TEST(out.eq(ok.str()));
|
|
|
|
#ifndef BOOST_CONTRACT_NO_OLDS
|
|
#define BOOST_CONTRACT_TEST_old 1u
|
|
#else
|
|
#define BOOST_CONTRACT_TEST_old 0u
|
|
#endif
|
|
|
|
// Followings destroy only copies (actual objects are static data members).
|
|
|
|
BOOST_TEST_EQ(a_n_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(a_n_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(a_n_type::copies(), a_n_type::dtors()); // No leak.
|
|
|
|
BOOST_TEST_EQ(c::m_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(c::m_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(c::m_type::copies(), c::m_type::dtors()); // No leak.
|
|
|
|
BOOST_TEST_EQ(t<'d'>::l_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'d'>::l_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'d'>::l_type::copies(), t<'d'>::l_type::dtors()); // No leak
|
|
|
|
BOOST_TEST_EQ(t<'p'>::l_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'p'>::l_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'p'>::l_type::copies(), t<'p'>::l_type::dtors()); // No leak
|
|
|
|
BOOST_TEST_EQ(t<'q'>::l_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'q'>::l_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'q'>::l_type::copies(), t<'q'>::l_type::dtors()); // No leak
|
|
|
|
BOOST_TEST_EQ(t<'e'>::l_type::copies(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'e'>::l_type::evals(), BOOST_CONTRACT_TEST_old);
|
|
BOOST_TEST_EQ(t<'e'>::l_type::copies(), t<'e'>::l_type::dtors()); // No leak
|
|
|
|
#undef BOOST_CONTRACT_TEST_old
|
|
return boost::report_errors();
|
|
}
|
|
|