215 lines
6.9 KiB
C++
215 lines
6.9 KiB
C++
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// Copyright (C) 2008-2018 Lorenzo Caminiti
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// Distributed under the Boost Software License, Version 1.0 (see accompanying
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// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
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// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
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// Test old inits/ftors and of mixed types up inheritance tree.
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#include "../detail/oteststream.hpp"
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#include <boost/contract/public_function.hpp>
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#include <boost/contract/base_types.hpp>
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#include <boost/contract/assert.hpp>
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#include <boost/contract/old.hpp>
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#include <boost/contract/check.hpp>
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#include <boost/contract/override.hpp>
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#include <boost/lexical_cast.hpp>
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#include <boost/detail/lightweight_test.hpp>
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#include <sstream>
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#include <string>
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boost::contract::test::detail::oteststream out;
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struct num {
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static num make(int i) { // Test no ctor (not even explicit) but for copy.
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num n;
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n.value(i);
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return n;
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}
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num(num const& other) : value_(other.value_) {}
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void value(int i) { value_ = boost::lexical_cast<std::string>(i); }
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int value() const { return boost::lexical_cast<int>(value_); }
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num operator+(int left) {
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num n;
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n.value(value() + left);
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return n;
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}
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private:
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num() {} // Test no visible default ctor (only copy ctor).
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num& operator=(num const&); // Test no copy operator (only copy ctor).
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std::string value_; // Test this size-of != from other old type `int` below.
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};
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struct c {
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virtual void f(int& i, num& n, boost::contract::virtual_* v = 0) {
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boost::contract::old_ptr<int> old_a = BOOST_CONTRACT_OLDOF(v, i + 1);
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boost::contract::old_ptr<num> old_b = BOOST_CONTRACT_OLDOF(v, n + 2);
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boost::contract::old_ptr<int> old_x;
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boost::contract::old_ptr<num> old_y;
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boost::contract::check c = boost::contract::public_function(v, this)
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.old([&] {
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out << "c::f::old" << std::endl;
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old_x = BOOST_CONTRACT_OLDOF(v, i + 3);
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old_y = BOOST_CONTRACT_OLDOF(v, n + 4);
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})
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.postcondition([&] {
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out << "c::f::post" << std::endl;
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BOOST_CONTRACT_ASSERT(*old_a == n.value() + 1);
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BOOST_CONTRACT_ASSERT(old_b->value() == i + 2);
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BOOST_CONTRACT_ASSERT(*old_x == n.value() + 3);
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BOOST_CONTRACT_ASSERT(old_y->value() == i + 4);
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})
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;
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out << "c::f::body" << std::endl;
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int tmp = i;
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i = n.value();
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n.value(tmp);
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}
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};
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struct b
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#define BASES public c
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: BASES
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{
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typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
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#undef BASES
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virtual void f(int& i, num& n, boost::contract::virtual_* v = 0)
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/* override */ {
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boost::contract::old_ptr<int> old_a = BOOST_CONTRACT_OLDOF(v, i + 1);
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boost::contract::old_ptr<num> old_b = BOOST_CONTRACT_OLDOF(v, n + 2);
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boost::contract::old_ptr<int> old_x;
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boost::contract::old_ptr<num> old_y;
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boost::contract::check c = boost::contract::public_function<
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override_f>(v, &c::f, this, i, n)
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.old([&] {
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out << "b::f::old" << std::endl;
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old_x = BOOST_CONTRACT_OLDOF(v, i + 3);
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old_y = BOOST_CONTRACT_OLDOF(v, n + 4);
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})
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.postcondition([&] {
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out << "b::f::post" << std::endl;
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BOOST_CONTRACT_ASSERT(*old_a == n.value() + 1);
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BOOST_CONTRACT_ASSERT(old_b->value() == i + 2);
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BOOST_CONTRACT_ASSERT(*old_x == n.value() + 3);
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BOOST_CONTRACT_ASSERT(old_y->value() == i + 4);
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})
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;
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out << "b::f::body" << std::endl;
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int tmp = i;
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i = n.value();
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n.value(tmp);
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}
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BOOST_CONTRACT_OVERRIDE(f)
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};
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struct a
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#define BASES public b
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: BASES
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{
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typedef BOOST_CONTRACT_BASE_TYPES(BASES) base_types;
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#undef BASES
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virtual void f(int& i, num& n, boost::contract::virtual_* v = 0)
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/* override */ {
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boost::contract::old_ptr<int> old_a = BOOST_CONTRACT_OLDOF(v, i + 1);
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boost::contract::old_ptr<num> old_b = BOOST_CONTRACT_OLDOF(v, n + 2);
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boost::contract::old_ptr<int> old_x;
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boost::contract::old_ptr<num> old_y;
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boost::contract::check c = boost::contract::public_function<
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override_f>(v, &c::f, this, i, n)
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.old([&] {
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out << "a::f::old" << std::endl;
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old_x = BOOST_CONTRACT_OLDOF(v, i + 3);
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old_y = BOOST_CONTRACT_OLDOF(v, n + 4);
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})
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.postcondition([&] {
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out << "a::f::post" << std::endl;
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BOOST_CONTRACT_ASSERT(*old_a == n.value() + 1);
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BOOST_CONTRACT_ASSERT(old_b->value() == i + 2);
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BOOST_CONTRACT_ASSERT(*old_x == n.value() + 3);
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BOOST_CONTRACT_ASSERT(old_y->value() == i + 4);
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})
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;
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out << "a::f::body" << std::endl;
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int tmp = i;
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i = n.value();
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n.value(tmp);
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}
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BOOST_CONTRACT_OVERRIDE(f)
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};
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int main() {
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std::ostringstream ok;
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int i = 0;
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num n = num::make(0);
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i = 123;
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n.value(-123);
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a aa; // Test virtual call with 2 bases.
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out.str("");
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aa.f(i, n);
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ok.str(""); ok
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#ifndef BOOST_CONTRACT_NO_OLDS
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<< "c::f::old" << std::endl
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<< "b::f::old" << std::endl
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<< "a::f::old" << std::endl
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#endif
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<< "a::f::body" << std::endl
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#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
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<< "c::f::old" << std::endl
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<< "c::f::post" << std::endl
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<< "b::f::old" << std::endl
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<< "b::f::post" << std::endl
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// No old call here because not a base object.
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<< "a::f::post" << std::endl
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#endif
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;
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BOOST_TEST(out.eq(ok.str()));
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i = 456;
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n.value(-456);
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b bb; // Test virtual call with 1 base.
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out.str("");
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bb.f(i, n);
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ok.str(""); ok
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#ifndef BOOST_CONTRACT_NO_OLDS
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<< "c::f::old" << std::endl
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<< "b::f::old" << std::endl
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#endif
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<< "b::f::body" << std::endl
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#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
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<< "c::f::old" << std::endl
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<< "c::f::post" << std::endl
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// No old call here because not a base object.
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<< "b::f::post" << std::endl
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#endif
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;
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BOOST_TEST(out.eq(ok.str()));
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i = 789;
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n.value(-789);
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c cc; // Test virtual call with no bases.
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out.str("");
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cc.f(i, n);
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ok.str(""); ok
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#ifndef BOOST_CONTRACT_NO_OLDS
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<< "c::f::old" << std::endl
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#endif
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<< "c::f::body" << std::endl
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#ifndef BOOST_CONTRACT_NO_POSTCONDITIONS
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// No old call here because not a base object.
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<< "c::f::post" << std::endl
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#endif
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;
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BOOST_TEST(out.eq(ok.str()));
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return boost::report_errors();
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}
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