| 1 | /*============================================================================= |
|---|---|
| 2 | Copyright (c) 2001-2016 Joel de Guzman |
| 3 | |
| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 6 | =============================================================================*/ |
| 7 | #include <boost/spirit/home/x3.hpp> |
| 8 | #include <boost/spirit/home/x3/support/ast/variant.hpp> |
| 9 | |
| 10 | #include <string> |
| 11 | #include <iostream> |
| 12 | #include "test.hpp" |
| 13 | |
| 14 | namespace x3 = boost::spirit::x3; |
| 15 | |
| 16 | struct none {}; |
| 17 | |
| 18 | using variant = x3::variant< |
| 19 | none |
| 20 | , bool |
| 21 | , std::string |
| 22 | , int |
| 23 | , double |
| 24 | >; |
| 25 | |
| 26 | struct ast : variant |
| 27 | { |
| 28 | using variant::variant; |
| 29 | using variant::operator=; |
| 30 | |
| 31 | ast(char const* s) |
| 32 | : variant(std::string{s}) |
| 33 | {} |
| 34 | |
| 35 | ast& operator=(char const* s) |
| 36 | { |
| 37 | variant::operator=(rhs: std::string{s}); |
| 38 | return *this; |
| 39 | } |
| 40 | }; |
| 41 | |
| 42 | int |
| 43 | main() |
| 44 | { |
| 45 | { |
| 46 | ast v{123}; |
| 47 | BOOST_TEST(boost::get<int>(v) == 123); |
| 48 | |
| 49 | v = "test"; |
| 50 | BOOST_TEST(boost::get<std::string>(v) == "test"); |
| 51 | |
| 52 | v = true; |
| 53 | BOOST_TEST(boost::get<bool>(v) == true); |
| 54 | } |
| 55 | return boost::report_errors(); |
| 56 | } |
| 57 |