| 1 | /*
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| 2 | * TOPPERS Software
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| 3 | * Toyohashi Open Platform for Embedded Real-Time Systems
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| 4 | *
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| 5 | * Copyright (C) 2005-2008 by TAKAGI Nobuhisa
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| 6 | *
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| 7 | * ãLì ÒÍCȺÌ(1)`(4)Ìðð½·êÉÀèC{\tgEF
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| 8 | * Ai{\tgEFAðüϵ½àÌðÜÞDȺ¯¶jðgpE¡»Eü
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| 9 | * ÏEÄzziȺCpÆÄÔj·é±Æð³Åø·éD
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| 10 | * (1) {\tgEFAð\[XR[hÌ`Åp·éêÉÍCãLÌì
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| 11 | * \¦C±Ìpð¨æѺL̳ÛØKèªC»ÌÜÜÌ`Å\[
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| 12 | * XR[hÉÜÜêÄ¢é±ÆD
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| 13 | * (2) {\tgEFAðCCu`®ÈÇC¼Ì\tgEFAJÉg
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| 14 | * pÅ«é`ÅÄzz·éêÉÍCÄzzɺ¤hL
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| 15 | gip
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| 16 | * Ò}j
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| 17 | AÈÇjÉCãLÌì \¦C±Ìpð¨æѺL
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| 18 | * ̳ÛØKèðfÚ·é±ÆD
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| 19 | * (3) {\tgEFAðC@íÉgÝÞÈÇC¼Ì\tgEFAJÉg
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| 20 | * pÅ«È¢`ÅÄzz·éêÉÍCÌ¢¸ê©Ìðð½·±
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| 21 | * ÆD
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| 22 | * (a) Äzzɺ¤hL
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| 23 | gipÒ}j
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| 24 | AÈÇjÉCãLÌ
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| 25 | * ì \¦C±Ìpð¨æѺL̳ÛØKèðfÚ·é±ÆD
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| 26 | * (b) ÄzzÌ`ÔðCÊÉèßéû@ÉæÁÄCTOPPERSvWFNgÉ
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| 27 | * ñ·é±ÆD
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| 28 | * (4) {\tgEFAÌpÉæè¼ÚIܽÍÔÚIɶ¶é¢©Èé¹
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| 29 | * Q©çàCãLì Ò¨æÑTOPPERSvWFNgðÆÓ·é±ÆD
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| 30 | * ܽC{\tgEFAÌ[UܽÍGh[U©çÌ¢©Èé
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| 31 | * RÉîÿ©çàCãLì Ò¨æÑTOPPERSvWFNgð
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| 32 | * ÆÓ·é±ÆD
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| 33 | *
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| 34 | * {\tgEFAÍC³ÛØÅñ³êÄ¢éàÌÅ éDãLì Ò¨
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| 35 | * æÑTOPPERSvWFNgÍC{\tgEFAÉÖµÄCÁèÌgpÚI
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| 36 | * ÉηéK«àÜßÄC¢©ÈéÛØàsíÈ¢DܽC{\tgEF
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| 37 | * AÌpÉæè¼ÚIܽÍÔÚIɶ¶½¢©Èé¹QÉÖµÄàC»
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| 38 | * ÌÓCðíÈ¢D
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| 39 | *
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| 40 | */
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| 41 |
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| 42 | /*!
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| 43 | * \file toppers/c_expr.hpp
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| 44 | * \brief C¾êÌ®Ì\¶ðÍÉÖ·éé¾è`
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| 45 | *
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| 46 | * ±Ìt@CÅè`³êéNX
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| 47 | * \code
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| 48 | * struct c_expr_parser_base< Derived >;
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| 49 | * struct c_expr_parser;
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| 50 | * struct c_const_expr_parser;
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| 51 | * \endcode
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| 52 | */
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| 53 | #ifndef TOPPERS_C_EXPR_HPP_
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| 54 | #define TOPPERS_C_EXPR_HPP_
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| 55 |
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| 56 | #include "toppers/c_parser.hpp"
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| 57 | #include <boost/cstdint.hpp>
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| 58 |
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| 59 | namespace toppers
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| 60 | {
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| 61 |
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| 62 | /*!
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| 63 | * \struct c_expr_parser_base c_expr.hpp "toppers/c_expr.hpp"
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| 64 | * \brief C¾êÌ®ð\¶ðÍ·é½ßÌîêNX
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| 65 | *
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| 66 | * ÀÛÉgp·éÛÍA c_expr_parser_base ¨æÑ c_expr_parser_base::definition
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| 67 | * NXðh¶·éKvª èÜ·B c_expr_parser_base::definition Ìh¶NXÅÍA
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| 68 | * start oÖðè`µÄA\¶ÌKvÈ[ðæèo·æ¤ÉµÄ¾³¢B
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| 69 | * ±¤·é±ÆÅAè®Ì¶@Aê®Ì¶@Æ¢Á½æ¤ÉAC¾ê̶@ÌTu
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| 70 | * ZbgðeÕÉìèo·±ÆªÅ«Ü·B
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| 71 | *
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| 72 | * \code
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| 73 | * // ê®ðæèo·á
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| 74 | * struct c_primary_expression : c_expr_parser_base< c_primary_expression >
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| 75 | * {
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| 76 | * template < class Scanner >
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| 77 | * struct definition : c_expr_parser_base< c_primary_expression >::definition
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| 78 | * {
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| 79 | * rule_t const& start() const { return primary_expression; }
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| 80 | * };
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| 81 | * };
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| 82 | * \endcode
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| 83 | */
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| 84 | template < class Derived >
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| 85 | struct c_expr_parser_base : boost::spirit::grammar< Derived >
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| 86 | {
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| 87 | public:
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| 88 | /*!
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| 89 | * \struct definition c_expr.hpp "toppers/c_expr.hpp"
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| 90 | * \brief ¶@è`
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| 91 | */
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| 92 | template < class Scanner >
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| 93 | struct definition
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| 94 | {
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| 95 | typedef boost::spirit::rule< Scanner > rule_t;
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| 96 | rule_t primary_expression,
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| 97 | expression,
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| 98 | constant_expression,
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| 99 | conditional_expression,
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| 100 | assignment_expression,
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| 101 | assignment_operator,
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| 102 | postfix_expression,
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| 103 | unary_expression,
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| 104 | unary_operator,
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| 105 | cast_expression,
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| 106 | multiplicative_expression,
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| 107 | additive_expression,
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| 108 | shift_expression,
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| 109 | relational_expression,
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| 110 | equality_expression,
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| 111 | AND_expression,
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| 112 | exclusive_OR_expression,
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| 113 | inclusive_OR_expression,
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| 114 | logical_AND_expression,
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| 115 | logical_OR_expression,
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| 116 | string_literal,
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| 117 | constant,
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| 118 | floating_constant,
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| 119 | decimal_floating_constant,
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| 120 | hexadecimal_floating_constant,
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| 121 | integer_constant,
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| 122 | character_constant,
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| 123 | declaration_specifiers,
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| 124 | type_name,
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| 125 | specifier_qualifier_list,
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| 126 | storage_class_specifier,
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| 127 | type_specifier,
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| 128 | type_qualifier,
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| 129 | declarator,
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| 130 | direct_declarator,
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| 131 | struct_or_union_specifier,
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| 132 | struct_declaration,
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| 133 | struct_declarator,
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| 134 | enum_specifier,
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| 135 | enumerator,
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| 136 | abstract_declarator,
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| 137 | pointer,
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| 138 | parameter_type_list,
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| 139 | parameter_list,
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| 140 | parameter_declaration,
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| 141 | direct_abstract_declarator;
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| 142 |
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| 143 | c_ident_parser_t identifier;
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| 144 | c_strlit_parser_t c_strlit_p;
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| 145 | c_chlit_parser_t c_chlit_p;
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| 146 |
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| 147 | /*!
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| 148 | * \brief RXgN^
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| 149 | * \param self ¶@NXi c_expr_parser_base< Derived > NX©çÌp³jÖÌQÆ
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| 150 | */
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| 151 | definition( Derived const& self )
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| 152 | : identifier( c_ident_parser( self.ucn_, self.c_plus_plus_ ) ),
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| 153 | c_strlit_p( c_strlit_parser( self.codeset_ ) ),
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| 154 | c_chlit_p( c_chlit_parser( self.codeset_ ) )
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| 155 | {
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| 156 | using namespace boost::spirit;
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| 157 | static functor_parser< detail::c_integer_constant_parse_functor< boost::uintmax_t > > const c_int_const_p;
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| 158 | static functor_parser< detail::c_integer_suffix_parse_functor > const c_int_suffix_p;
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| 159 |
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| 160 | primary_expression = // ¡e¢Î
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| 161 | identifier
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| 162 | | constant
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| 163 | | string_literal
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| 164 | | ( '(' >> expression >> ')' );
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| 165 | expression =
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| 166 | assignment_expression % ',';
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| 167 | constant_expression =
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| 168 | conditional_expression;
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| 169 | conditional_expression =
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| 170 | logical_OR_expression >> *( '\?' >> expression >> ':' >> logical_OR_expression );
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| 171 | assignment_expression =
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| 172 | *( unary_expression >> assignment_operator ) >> conditional_expression;
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| 173 | assignment_operator =
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| 174 | ch_p( '=' ) | "*=" | "/=" | "%=" | "+=" | "?=" | "<<=" | ">>=" | "&=" | "^=" | "|=";
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| 175 | postfix_expression =
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| 176 | primary_expression >>
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| 177 | *(
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| 178 | ( '[' >> expression >> ']' )
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| 179 | | ( '(' >> list_p( assignment_expression, ',' ) >> ')' )
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| 180 | | ( '.' >> identifier )
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| 181 | | ( "->" >> identifier )
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| 182 | | "++"
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| 183 | | "--"
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| 184 | );
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| 185 | unary_expression =
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| 186 | *( str_p( "++" ) || "--" ) >>
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| 187 | (
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| 188 | ( "sizeof" >> unary_expression )
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| 189 | | ( str_p( "sizeof" ) >> '(' >> type_name >> ')' )
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| 190 | | postfix_expression
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| 191 | | ( unary_operator >> cast_expression )
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| 192 | );
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| 193 | unary_operator =
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| 194 | chset<>( "&*~!+-" );
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| 195 | cast_expression =
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| 196 | *( '(' >> type_name >> ')' ) >> unary_expression
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| 197 | | +( '(' >> ( type_name | identifier ) >> ')' ); // \¶ðÍɸs·ésïÎô
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| 198 | multiplicative_expression =
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| 199 | cast_expression >>
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| 200 | *(
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| 201 | ( '*' >> cast_expression )
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| 202 | | ( '/' >> cast_expression )
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| 203 | | ( '%' >> cast_expression )
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| 204 | );
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| 205 | additive_expression =
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| 206 | multiplicative_expression >>
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| 207 | *(
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| 208 | ( '+' >> multiplicative_expression )
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| 209 | | ( '-' >> multiplicative_expression )
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| 210 | );
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| 211 | shift_expression =
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| 212 | additive_expression >>
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| 213 | *(
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| 214 | ( "<<" >> additive_expression )
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| 215 | | ( ">>" >> additive_expression )
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| 216 | );
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| 217 | relational_expression =
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| 218 | shift_expression >>
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| 219 | *(
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| 220 | ( '<' >> shift_expression )
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| 221 | | ( '>' >> shift_expression )
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| 222 | | ( "<=" >> shift_expression )
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| 223 | | ( ">=" >> shift_expression )
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| 224 | );
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| 225 | equality_expression =
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| 226 | relational_expression >>
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| 227 | *(
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| 228 | ( "==" >> relational_expression )
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| 229 | | ( "!=" >> relational_expression )
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| 230 | );
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| 231 | AND_expression =
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| 232 | equality_expression >> *( '&' >> equality_expression );
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| 233 | exclusive_OR_expression =
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| 234 | AND_expression >> *( '^' >> AND_expression );
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| 235 | inclusive_OR_expression =
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| 236 | exclusive_OR_expression >> *( '|' >> exclusive_OR_expression );
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| 237 | logical_AND_expression =
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| 238 | inclusive_OR_expression >> *( "&&" >> inclusive_OR_expression );
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| 239 | logical_OR_expression =
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| 240 | logical_AND_expression >> *( "||" >> logical_AND_expression );
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| 241 | string_literal =
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| 242 | c_strlit_p
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| 243 | | lexeme_d[ 'L' >> c_strlit_p ];
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| 244 | constant =
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| 245 | floating_constant
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| 246 | | integer_constant
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| 247 | | identifier // ñè
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| 248 | | character_constant;
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| 249 | floating_constant =
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| 250 | decimal_floating_constant
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| 251 | | hexadecimal_floating_constant;
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| 252 | decimal_floating_constant =
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| 253 | lexeme_d
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| 254 | [
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| 255 | as_lower_d
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| 256 | [
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| 257 | ( ( *digit_p >> '.' >> +digit_p ) | ( +digit_p >> '.' ) ) >>
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| 258 | 'e' >> !chset<>( "+-" ) >> +digit_p >>
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| 259 | !chset<>( "fl" )
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| 260 | ]
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| 261 | ];
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| 262 | hexadecimal_floating_constant =
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| 263 | lexeme_d
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| 264 | [
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| 265 | as_lower_d
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| 266 | [
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| 267 | "0x" >>
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| 268 | ( ( *xdigit_p >> '.' >> +xdigit_p ) | ( +xdigit_p >> '.' ) ) >>
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| 269 | 'p' >> !chset<>( "+-" ) >> +digit_p >>
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| 270 | !chset<>( "fl" )
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| 271 | ]
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| 272 | ];
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| 273 | integer_constant =
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| 274 | lexeme_d[ c_int_const_p >> !c_int_suffix_p ];
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| 275 | character_constant =
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| 276 | c_chlit_p
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| 277 | | lexeme_d[ 'L' >> c_chlit_p ];
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| 278 | declaration_specifiers =
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| 279 | +( storage_class_specifier | type_specifier | type_qualifier );
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| 280 | type_name =
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| 281 | specifier_qualifier_list >> !abstract_declarator;
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| 282 | specifier_qualifier_list =
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| 283 | +( type_specifier | type_qualifier );
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| 284 | storage_class_specifier =
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| 285 | str_p( "auto" )
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| 286 | | "register"
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| 287 | | "static"
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| 288 | | "extern"
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| 289 | | "typedef";
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| 290 | type_specifier =
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| 291 | str_p( "void" ) | "char" | "short" | "int" | "long" | "float" | "double"
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| 292 | | "signed" | "unsigned"
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| 293 | | identifier
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| 294 | | struct_or_union_specifier
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| 295 | | enum_specifier;
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| 296 | type_qualifier =
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| 297 | str_p( "const" ) | "volatile" | "restrict";
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| 298 | declarator =
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| 299 | !pointer >> direct_declarator;
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| 300 | direct_declarator =
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| 301 | ( identifier | ( '(' >> declarator >> ')' ) )
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| 302 | >>
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| 303 | *(
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| 304 | ( '[' >> !constant_expression >> ']' )
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| 305 | | ( '(' >> parameter_type_list >> ')' )
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| 306 | | ( '(' >> !( identifier % ',' ) >> ')' )
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| 307 | );
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| 308 | struct_or_union_specifier =
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| 309 | lexeme_d[ ( str_p( "struct" ) | "union" ) >> +space_p >> identifier ]
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| 310 | | ( lexeme_d[ ( str_p( "struct" ) | "union" ) >> +space_p >> !identifier ] >> '{' >> +struct_declaration >> '}' );
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| 311 | struct_declaration =
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| 312 | specifier_qualifier_list >> !list_p( struct_declarator, ',' ) >> ';';
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| 313 | // lisp_p( struct_declarator, ',' )ðȪÂ\ƵĢéÌÍA
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| 314 | // struct_declarator Ì identifier ð specifier_qualifier_list ª
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| 315 | // typedef ¼ÆÔᤱÆðñð·é½ß
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| 316 | struct_declarator =
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| 317 | ( !declarator >> ':' >> constant_expression ) // rbgtB[h
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| 318 | | declarator;
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| 319 | enum_specifier =
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| 320 | ( lexeme_d[ "enum" >> +space_p >> !identifier ] >> '{' >> list_p( enumerator, ',', ',' ) >> '}' ) // C99ÅÍöÌJ}ª ÁÄàæ¢
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| 321 | | lexeme_d[ "enum" >> +space_p >> identifier ];
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| 322 | enumerator =
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| 323 | identifier >> !( '=' >> constant_expression );
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| 324 | abstract_declarator =
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| 325 | ( !pointer >> direct_abstract_declarator )
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| 326 | | pointer;
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| 327 | pointer =
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| 328 | +( '*' >> *type_qualifier );
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| 329 | parameter_type_list =
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| 330 | parameter_list >> !( ch_p( ',' ) >> "..." ); // ÂÏÂø
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| 331 | parameter_list =
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| 332 | parameter_declaration % ',';
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| 333 | parameter_declaration =
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| 334 | ( declaration_specifiers >> declarator )
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| 335 | | ( declaration_specifiers >> !abstract_declarator );
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| 336 | direct_abstract_declarator =
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| 337 | (
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| 338 | !( '(' >> abstract_declarator >> ')' ) >>
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| 339 | +(
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| 340 | ( '[' >> !constant_expression >> ']' )
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| 341 | | ( '(' >> !parameter_type_list >> ')' )
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| 342 | )
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| 343 | )
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| 344 | | ( '(' >> abstract_declarator >> ')' );
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| 345 | }
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| 346 | };
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| 347 | bool ucn_;
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| 348 | codeset_t codeset_;
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| 349 | bool c_plus_plus_;
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| 350 |
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| 351 | /*!
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| 352 | * \brief RXgN^
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| 353 | * \param ucn Û¶¼ÉηéêÍ true ðwè·é
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| 354 | * \param codeset ¶R[h
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| 355 | * \param c_plus_plus C++ ÉηéêÍ true ðwè·é
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| 356 | */
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| 357 | explicit c_expr_parser_base( bool ucn = false, codeset_t codeset = ascii, bool c_plus_plus = false )
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| 358 | : ucn_( ucn ), codeset_( codeset ), c_plus_plus_( c_plus_plus )
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| 359 | {
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| 360 | }
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| 361 | };
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| 362 |
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| 363 | /*!
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| 364 | * \class c_expr_parser c_expr.hpp "toppers/c_expr.hpp"
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| 365 | * \brief C¾êÌ®Ì\¶ðÍNX
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| 366 | */
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| 367 | struct c_expr_parser : c_expr_parser_base< c_expr_parser >
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| 368 | {
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| 369 | typedef c_expr_parser_base< c_expr_parser > base_t;
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| 370 |
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| 371 | /*!
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| 372 | * \struct definition c_expr.hpp "toppers/c_expr.hpp"
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| 373 | * \brief ¶@è`
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| 374 | */
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| 375 | template < class Scanner >
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| 376 | struct definition : base_t::definition< Scanner >
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| 377 | {
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| 378 | typedef typename base_t::definition< Scanner >::rule_t rule_t;
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| 379 |
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| 380 | definition( c_expr_parser const& self ) : base_t::definition< Scanner >( self ) {}
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| 381 | rule_t const& start() const { return base_t::definition< Scanner >::expression; };
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| 382 | };
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| 383 |
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| 384 | /*!
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| 385 | * \brief RXgN^
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| 386 | * \param ucn Û¶¼ÉηéêÍ true ðwè·é
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| 387 | * \param codeset ¶R[h
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| 388 | */
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| 389 | explicit c_expr_parser( bool ucn = false, codeset_t codeset = ascii )
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| 390 | : c_expr_parser_base< c_expr_parser >( ucn, codeset )
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| 391 | {
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| 392 | }
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| 393 | };
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| 394 |
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| 395 | /*!
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| 396 | * \class c_const_expr_parser c_expr.hpp "toppers/c_expr.hpp"
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| 397 | * \brief C¾êÌè®Ì\¶ðÍNX
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| 398 | */
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| 399 | struct c_const_expr_parser : c_expr_parser_base< c_const_expr_parser >
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| 400 | {
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| 401 | typedef c_expr_parser_base< c_const_expr_parser > base_t;
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| 402 |
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| 403 | /*!
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| 404 | * \struct definition c_expr.hpp "toppers/c_expr.hpp"
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| 405 | * \brief ¶@è`
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| 406 | */
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| 407 | template < class Scanner >
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| 408 | struct definition : base_t::definition< Scanner >
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| 409 | {
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| 410 | typedef typename base_t::definition< Scanner >::rule_t rule_t;
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| 411 |
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| 412 | definition( c_const_expr_parser const& self ) : base_t::definition< Scanner >( self ) {}
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| 413 | rule_t const& start() const { return base_t::definition< Scanner >::constant_expression; };
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| 414 | };
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| 415 |
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| 416 | /*!
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| 417 | * \brief RXgN^
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| 418 | * \param ucn Û¶¼ÉηéêÍ true ðwè·é
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| 419 | * \param codeset ¶R[h
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| 420 | */
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| 421 | explicit c_const_expr_parser( bool ucn = false, codeset_t codeset = ascii )
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| 422 | : c_expr_parser_base< c_const_expr_parser >( ucn, codeset )
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| 423 | {
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| 424 | }
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| 425 | };
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| 426 |
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| 427 | }
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| 428 |
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| 429 | #endif // ! TOPPERS_C_EXPR_HPP_
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