186 lines
6.5 KiB
C++
186 lines
6.5 KiB
C++
/*=============================================================================
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Boost.Wave: A Standard compliant C++ preprocessor library
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http://www.boost.org/
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Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
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Software License, Version 1.0. (See accompanying file
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LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#if !defined(BOOST_CPP_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED)
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#define BOOST_CPP_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED
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#include <boost/wave/wave_config.hpp>
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#include <boost/assert.hpp>
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#include <boost/spirit/include/classic_core.hpp>
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#include <boost/spirit/include/classic_closure.hpp>
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#include <boost/spirit/include/classic_assign_actor.hpp>
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#include <boost/spirit/include/classic_push_back_actor.hpp>
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#include <boost/wave/token_ids.hpp>
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#include <boost/wave/util/pattern_parser.hpp>
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#include <boost/wave/grammars/cpp_defined_grammar_gen.hpp>
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#if !defined(spirit_append_actor)
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#define spirit_append_actor(actor) boost::spirit::classic::push_back_a(actor)
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#define spirit_assign_actor(actor) boost::spirit::classic::assign_a(actor)
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#endif // !defined(spirit_append_actor)
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// this must occur after all of the includes and before any code appears
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#ifdef BOOST_HAS_ABI_HEADERS
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#include BOOST_ABI_PREFIX
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#endif
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///////////////////////////////////////////////////////////////////////////////
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namespace boost {
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namespace wave {
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namespace grammars {
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///////////////////////////////////////////////////////////////////////////////
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// define, whether the rule's should generate some debug output
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#define TRACE_CPP_DEFINED_GRAMMAR \
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bool(BOOST_SPIRIT_DEBUG_FLAGS_CPP & BOOST_SPIRIT_DEBUG_FLAGS_DEFINED_GRAMMAR) \
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/**/
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template <typename ContainerT>
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struct defined_grammar :
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public boost::spirit::classic::grammar<defined_grammar<ContainerT> >
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{
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defined_grammar(ContainerT &result_seq_)
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: result_seq(result_seq_)
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{
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BOOST_SPIRIT_DEBUG_TRACE_GRAMMAR_NAME(*this, "defined_grammar",
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TRACE_CPP_DEFINED_GRAMMAR);
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}
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template <typename ScannerT>
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struct definition
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{
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typedef boost::spirit::classic::rule<ScannerT> rule_t;
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rule_t defined_op;
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rule_t identifier;
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definition(defined_grammar const &self)
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{
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using namespace boost::spirit::classic;
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using namespace boost::wave;
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using namespace boost::wave::util;
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defined_op // parens not required, see C++ standard 16.1.1
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= ch_p(T_IDENTIFIER) // token contains 'defined'
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>> (
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( ch_p(T_LEFTPAREN)
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>> identifier
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>> ch_p(T_RIGHTPAREN)
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)
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| identifier
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)
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;
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identifier
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= ch_p(T_IDENTIFIER)
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[
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spirit_append_actor(self.result_seq)
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]
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| pattern_p(KeywordTokenType, TokenTypeMask|PPTokenFlag)
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[
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spirit_append_actor(self.result_seq)
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]
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| pattern_p(OperatorTokenType|AltExtTokenType,
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ExtTokenTypeMask|PPTokenFlag)
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[
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spirit_append_actor(self.result_seq)
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]
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| pattern_p(BoolLiteralTokenType, TokenTypeMask|PPTokenFlag)
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[
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spirit_append_actor(self.result_seq)
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]
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;
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BOOST_SPIRIT_DEBUG_TRACE_RULE(defined_op, TRACE_CPP_DEFINED_GRAMMAR);
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BOOST_SPIRIT_DEBUG_TRACE_RULE(identifier, TRACE_CPP_DEFINED_GRAMMAR);
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}
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// start rule of this grammar
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rule_t const& start() const
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{ return defined_op; }
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};
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ContainerT &result_seq;
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};
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///////////////////////////////////////////////////////////////////////////////
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#undef TRACE_CPP_DEFINED_GRAMMAR
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///////////////////////////////////////////////////////////////////////////////
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//
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// The following parse function is defined here, to allow the separation of
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// the compilation of the defined_grammar from the function
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// using it.
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//
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///////////////////////////////////////////////////////////////////////////////
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#if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION != 0
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#define BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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#else
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#define BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE inline
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#endif
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// The parse_operator_define function is instantiated manually twice to
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// simplify the explicit specialization of this template. This way the user
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// has only to specify one template parameter (the lexer type) to correctly
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// formulate the required explicit specialization.
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// This results in no code overhead, because otherwise the function would be
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// generated by the compiler twice anyway.
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template <typename LexIteratorT>
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BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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boost::spirit::classic::parse_info<
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typename defined_grammar_gen<LexIteratorT>::iterator1_type
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>
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defined_grammar_gen<LexIteratorT>::parse_operator_defined (
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iterator1_type const &first, iterator1_type const &last,
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token_sequence_type &found_qualified_name)
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{
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using namespace boost::spirit::classic;
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using namespace boost::wave;
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defined_grammar<token_sequence_type> g(found_qualified_name);
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return boost::spirit::classic::parse (
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first, last, g, ch_p(T_SPACE) | ch_p(T_CCOMMENT));
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}
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template <typename LexIteratorT>
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BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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boost::spirit::classic::parse_info<
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typename defined_grammar_gen<LexIteratorT>::iterator2_type
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>
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defined_grammar_gen<LexIteratorT>::parse_operator_defined (
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iterator2_type const &first, iterator2_type const &last,
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token_sequence_type &found_qualified_name)
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{
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using namespace boost::spirit::classic;
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using namespace boost::wave;
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defined_grammar<token_sequence_type> g(found_qualified_name);
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return boost::spirit::classic::parse (
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first, last, g, ch_p(T_SPACE) | ch_p(T_CCOMMENT));
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}
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#undef BOOST_WAVE_DEFINED_GRAMMAR_GEN_INLINE
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///////////////////////////////////////////////////////////////////////////////
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} // namespace grammars
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} // namespace wave
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} // namespace boost
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// the suffix header occurs after all of the code
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#ifdef BOOST_HAS_ABI_HEADERS
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#include BOOST_ABI_SUFFIX
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#endif
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#endif // !defined(BOOST_CPP_DEFINED_GRAMMAR_HPP_F48287B2_DC67_40A8_B4A1_800EFBD67869_INCLUDED)
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