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// 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 throw from public function (derived and bases) .pre().
#include "../detail/oteststream.hpp"
#include <boost/contract/public_function.hpp>
#include <boost/contract/assert.hpp>
#include <boost/contract/base_types.hpp>
#include <boost/contract/override.hpp>
#include <boost/contract/check.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <sstream>
boost::contract::test::detail::oteststream out;
struct c_err {}; // Global decl so visible in MSVC10 lambdas.
struct c {
static void static_invariant() { out << "c::static_inv" << std::endl; }
void invariant() const { out << "c::inv" << std::endl; }
virtual void f(boost::contract::virtual_* v = 0) {
boost::contract::check c = boost::contract::public_function(v, this)
.precondition([] {
out << "c::f::pre" << std::endl;
BOOST_CONTRACT_ASSERT(false); // To check derived pre.
})
.old([] { out << "c::f::old" << std::endl; })
.postcondition([] { out << "c::f::post" << std::endl; })
.except([] { out << "c::f::except" << std::endl; })
;
out << "c::f::body" << std::endl;
}
};
struct b_err {}; // Global decl so visible in MSVC10 lambdas.
struct b
#define BASES public c
: BASES
{
typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
#undef BASES
static void static_invariant() { out << "b::static_inv" << std::endl; }
void invariant() const { out << "b::inv" << std::endl; }
virtual void f(boost::contract::virtual_* v = 0) /* override */ {
boost::contract::check c = boost::contract::public_function<override_f>(
v, &b::f, this)
.precondition([] {
out << "b::f::pre" << std::endl;
BOOST_CONTRACT_ASSERT(false); // To check derived pre.
})
.old([] { out << "b::f::old" << std::endl; })
.postcondition([] { out << "b::f::post" << std::endl; })
.except([] { out << "b::f::except" << std::endl; })
;
out << "b::f::body" << std::endl;
}
BOOST_CONTRACT_OVERRIDE(f)
};
struct a_err {}; // Global decl so visible in MSVC10 lambdas.
struct a
#define BASES public b
: BASES
{
typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
#undef BASES
static void static_invariant() { out << "a::static_inv" << std::endl; }
void invariant() const { out << "a::inv" << std::endl; }
void f(boost::contract::virtual_* v = 0) /* override */ {
boost::contract::check c = boost::contract::public_function<override_f>(
v, &a::f, this)
.precondition([] {
out << "a::f::pre" << std::endl;
throw a_err(); // Test this throws.
})
.old([] { out << "a::f::old" << std::endl; })
.postcondition([] { out << "a::f::post" << std::endl; })
.except([] { out << "a::f::except" << std::endl; })
;
out << "a::f::body" << std::endl;
}
BOOST_CONTRACT_OVERRIDE(f)
};
int main() {
std::ostringstream ok;
boost::contract::set_precondition_failure(
[] (boost::contract::from) { throw; });
a aa;
b& ba = aa; // Test as virtual call via polymorphism.
try {
out.str("");
ba.f();
#ifndef BOOST_CONTRACT_NO_PRECONDITIONS
BOOST_TEST(false);
} catch(a_err const&) {
#endif
ok.str(""); ok
#ifndef BOOST_CONTRACT_NO_ENTRY_INVARIANTS
<< "c::static_inv" << std::endl
<< "c::inv" << std::endl
<< "b::static_inv" << std::endl
<< "b::inv" << std::endl
<< "a::static_inv" << std::endl
<< "a::inv" << std::endl
#endif
#ifndef BOOST_CONTRACT_NO_PRECONDITIONS
<< "c::f::pre" << std::endl
<< "b::f::pre" << std::endl
<< "a::f::pre" << std::endl // Test this threw.
#else
#ifndef BOOST_CONTRACT_NO_OLDS
<< "c::f::old" << std::endl
<< "b::f::old" << std::endl
<< "a::f::old" << std::endl
#endif
<< "a::f::body" << std::endl
#ifndef BOOST_CONTRACT_NO_EXIT_INVARIANTS
<< "c::static_inv" << std::endl
<< "c::inv" << std::endl
<< "b::static_inv" << std::endl
<< "b::inv" << std::endl
<< "a::static_inv" << std::endl
<< "a::inv" << std::endl
#endif
#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
<< "c::f::old" << std::endl
<< "c::f::post" << std::endl
<< "b::f::old" << std::endl
<< "b::f::post" << std::endl
// No old call here because not a base object.
<< "a::f::post" << std::endl
#endif
#endif
;
BOOST_TEST(out.eq(ok.str()));
} catch(...) { BOOST_TEST(false); }
return boost::report_errors();
}
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