272 lines
6.8 KiB
C++
272 lines
6.8 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2007 Joel de Guzman
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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 copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#include <boost/detail/lightweight_test.hpp>
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#include <boost/fusion/adapted/struct/adapt_struct.hpp>
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#include <boost/fusion/sequence/intrinsic/at.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/fusion/sequence/intrinsic/empty.hpp>
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#include <boost/fusion/sequence/intrinsic/front.hpp>
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#include <boost/fusion/sequence/intrinsic/back.hpp>
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#include <boost/fusion/sequence/intrinsic/value_at.hpp>
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#include <boost/fusion/sequence/io/out.hpp>
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#include <boost/fusion/container/vector/vector.hpp>
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#include <boost/fusion/container/list/list.hpp>
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#include <boost/fusion/container/generation/make_vector.hpp>
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#include <boost/fusion/container/vector/convert.hpp>
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#include <boost/fusion/sequence/comparison/equal_to.hpp>
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#include <boost/fusion/sequence/comparison/not_equal_to.hpp>
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#include <boost/fusion/sequence/comparison/less.hpp>
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#include <boost/fusion/sequence/comparison/less_equal.hpp>
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#include <boost/fusion/sequence/comparison/greater.hpp>
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#include <boost/fusion/sequence/comparison/greater_equal.hpp>
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#include <boost/fusion/mpl.hpp>
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#include <boost/fusion/support/is_view.hpp>
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#include <boost/mpl/front.hpp>
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#include <boost/mpl/is_sequence.hpp>
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#include <boost/mpl/assert.hpp>
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#include <boost/static_assert.hpp>
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#include <iostream>
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#include <string>
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namespace namespaced_type {
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typedef int integer;
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}
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namespace ns
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{
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struct point
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{
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int x;
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int y;
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namespaced_type::integer z;
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};
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#if !BOOST_WORKAROUND(__GNUC__,<4)
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struct point_with_private_attributes
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{
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friend struct boost::fusion::extension::access;
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private:
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int x;
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int y;
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int z;
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public:
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point_with_private_attributes(int x, int y, int z):x(x),y(y),z(z)
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{}
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};
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#endif
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struct foo
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{
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int x;
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};
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struct bar
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{
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foo foo_;
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int y;
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};
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// Testing non-constexpr compatible types
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struct employee {
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std::string name;
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std::string nickname;
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employee(std::string name, std::string nickname)
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: name(name), nickname(nickname)
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{}
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};
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}
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#if BOOST_PP_VARIADICS
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BOOST_FUSION_ADAPT_STRUCT(
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ns::point,
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x,
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y,
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z
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)
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# if !BOOST_WORKAROUND(__GNUC__,<4)
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BOOST_FUSION_ADAPT_STRUCT(
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ns::point_with_private_attributes,
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x,
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y,
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z
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)
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# endif
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struct s { int m; };
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BOOST_FUSION_ADAPT_STRUCT(s, m)
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BOOST_FUSION_ADAPT_STRUCT(
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ns::bar,
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foo_.x, // test that adapted members can actually be expressions
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(auto , y)
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)
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BOOST_FUSION_ADAPT_STRUCT(
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ns::employee,
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name,
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nickname
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)
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#else // BOOST_PP_VARIADICS
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BOOST_FUSION_ADAPT_STRUCT(
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ns::point,
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(int, x)
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(auto, y)
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(namespaced_type::integer, z)
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)
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# if !BOOST_WORKAROUND(__GNUC__,<4)
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BOOST_FUSION_ADAPT_STRUCT(
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ns::point_with_private_attributes,
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(int, x)
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(int, y)
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(auto, z)
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)
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# endif
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struct s { int m; };
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BOOST_FUSION_ADAPT_STRUCT(s, (auto, m))
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BOOST_FUSION_ADAPT_STRUCT(
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ns::bar,
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(auto, foo_.x) // test that adapted members can actually be expressions
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(BOOST_FUSION_ADAPT_AUTO, y) // Mixing auto & BOOST_FUSION_ADAPT_AUTO
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// to test backward compatibility
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)
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BOOST_FUSION_ADAPT_STRUCT(
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ns::employee,
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(std::string, name)
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(BOOST_FUSION_ADAPT_AUTO, nickname)
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)
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#endif
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struct empty_struct {};
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BOOST_FUSION_ADAPT_STRUCT(empty_struct,)
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int
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main()
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{
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using namespace boost::fusion;
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using namespace boost;
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using ns::point;
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std::cout << tuple_open('[');
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std::cout << tuple_close(']');
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std::cout << tuple_delimiter(", ");
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{
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BOOST_MPL_ASSERT_NOT((traits::is_view<point>));
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BOOST_STATIC_ASSERT(!traits::is_view<point>::value);
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point p = {123, 456, 789};
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std::cout << at_c<0>(p) << std::endl;
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std::cout << at_c<1>(p) << std::endl;
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std::cout << at_c<2>(p) << std::endl;
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std::cout << p << std::endl;
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BOOST_TEST(p == make_vector(123, 456, 789));
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at_c<0>(p) = 6;
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at_c<1>(p) = 9;
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at_c<2>(p) = 12;
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BOOST_TEST(p == make_vector(6, 9, 12));
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BOOST_STATIC_ASSERT(boost::fusion::result_of::size<point>::value == 3);
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BOOST_STATIC_ASSERT(!boost::fusion::result_of::empty<point>::value);
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BOOST_TEST(front(p) == 6);
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BOOST_TEST(back(p) == 12);
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}
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{
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vector<int, float, int> v1(4, 2.f, 2);
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point v2 = {5, 3, 3};
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vector<long, double, int> v3(5, 4., 4);
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BOOST_TEST(v1 < v2);
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BOOST_TEST(v1 <= v2);
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BOOST_TEST(v2 > v1);
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BOOST_TEST(v2 >= v1);
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BOOST_TEST(v2 < v3);
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BOOST_TEST(v2 <= v3);
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BOOST_TEST(v3 > v2);
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BOOST_TEST(v3 >= v2);
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}
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{
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// conversion from point to vector
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point p = {5, 3, 3};
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vector<int, long, int> v(p);
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v = p;
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}
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{
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// conversion from point to list
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point p = {5, 3, 3};
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list<int, long, int> l(p);
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l = p;
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}
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{ // begin/end
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using namespace boost::fusion;
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using boost::is_same;
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typedef boost::fusion::result_of::begin<s>::type b;
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typedef boost::fusion::result_of::end<s>::type e;
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// this fails
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BOOST_MPL_ASSERT((is_same<boost::fusion::result_of::next<b>::type, e>));
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}
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{
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BOOST_MPL_ASSERT((mpl::is_sequence<ns::point>));
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BOOST_MPL_ASSERT((boost::is_same<
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boost::fusion::result_of::value_at_c<ns::point,0>::type
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, mpl::front<ns::point>::type>));
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}
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#if !BOOST_WORKAROUND(__GNUC__,<4)
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{
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ns::point_with_private_attributes p(123, 456, 789);
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std::cout << at_c<0>(p) << std::endl;
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std::cout << at_c<1>(p) << std::endl;
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std::cout << at_c<2>(p) << std::endl;
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std::cout << p << std::endl;
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BOOST_TEST(p == make_vector(123, 456, 789));
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}
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#endif
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{
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fusion::vector<int, float> v1(4, 2.f);
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ns::bar v2 = {{5}, 3};
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BOOST_TEST(v1 < v2);
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BOOST_TEST(v1 <= v2);
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BOOST_TEST(v2 > v1);
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BOOST_TEST(v2 >= v1);
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}
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{
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ns::employee emp("John Doe", "jdoe");
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std::cout << at_c<0>(emp) << std::endl;
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std::cout << at_c<1>(emp) << std::endl;
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fusion::vector<std::string, std::string> v1("John Doe", "jdoe");
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BOOST_TEST(emp == v1);
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}
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return boost::report_errors();
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}
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