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- /*=============================================================================
- Copyright (c) 2019 Nikita Kniazev
- Use, modification and distribution is subject to the Boost Software
- License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt)
- =============================================================================*/
- #include <boost/spirit/home/x3.hpp>
- // Check that `BOOST_SPIRIT_INSTANTIATE` instantiates `parse_rule` with proper
- // types when a rule has no attribute.
- namespace unused_attr {
- namespace x3 = boost::spirit::x3;
- // skipper must has no attribute, checks `parse` and `skip_over`
- using skipper_type = x3::rule<class skipper_r>;
- const skipper_type skipper;
- BOOST_SPIRIT_DECLARE(skipper_type)
- // the `unused_type const` must have the same effect as no attribute
- using skipper2_type = x3::rule<class skipper2_r, x3::unused_type const>;
- const skipper2_type skipper2;
- BOOST_SPIRIT_DECLARE(skipper2_type)
- // grammar must has no attribute, checks `parse` and `phrase_parse`
- using grammar_type = x3::rule<class grammar_r>;
- const grammar_type grammar;
- BOOST_SPIRIT_DECLARE(grammar_type)
- }
- // Check instantiation when rule has an attribute.
- namespace used_attr {
- namespace x3 = boost::spirit::x3;
- using skipper_type = x3::rule<class skipper_r>;
- const skipper_type skipper;
- BOOST_SPIRIT_DECLARE(skipper_type)
- using grammar_type = x3::rule<class grammar_r, int>;
- const grammar_type grammar;
- BOOST_SPIRIT_DECLARE(grammar_type)
- }
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