[b87a5ed] | 1 | // |
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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| 3 | // |
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| 4 | // The contents of this file are covered under the licence agreement in the |
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| 5 | // file "LICENCE" distributed with Cforall. |
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| 6 | // |
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[c11e31c] | 7 | // cfa.y -- |
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| 8 | // |
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| 9 | // Author : Peter A. Buhr |
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| 10 | // Created On : Sat Sep 1 20:22:55 2001 |
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| 11 | // Last Modified By : Peter A. Buhr |
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[4d51835] | 12 | // Last Modified On : Wed May 27 09:20:53 2015 |
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| 13 | // Update Count : 1015 |
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[c11e31c] | 14 | // |
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| 15 | |
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[b87a5ed] | 16 | // This grammar is based on the ANSI99/11 C grammar, specifically parts of EXPRESSION and STATEMENTS, and on |
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| 17 | // the C grammar by James A. Roskind, specifically parts of DECLARATIONS and EXTERNAL DEFINITIONS. While |
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| 18 | // parts have been copied, important changes have been made in all sections; these changes are sufficient to |
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| 19 | // constitute a new grammar. In particular, this grammar attempts to be more syntactically precise, i.e., it |
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| 20 | // parses less incorrect language syntax that must be subsequently rejected by semantic checks. Nevertheless, |
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| 21 | // there are still several semantic checks required and many are noted in the grammar. Finally, the grammar is |
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| 22 | // extended with GCC and CFA language extensions. |
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[c11e31c] | 23 | |
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[b87a5ed] | 24 | // Acknowledgments to Richard Bilson, Glen Ditchfield, and Rodolfo Gabriel Esteves who all helped when I got |
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| 25 | // stuck with the grammar. |
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[c11e31c] | 26 | |
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| 27 | // The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed, except for: |
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| 28 | // |
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| 29 | // 1. designation with '=' (use ':' instead) |
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| 30 | // |
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[b87a5ed] | 31 | // Most of the syntactic extensions from ANSI90 to ANSI11 C are marked with the comment "C99/C11". This |
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| 32 | // grammar also has two levels of extensions. The first extensions cover most of the GCC C extensions, except for: |
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[c11e31c] | 33 | // |
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| 34 | // 1. nested functions |
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| 35 | // 2. generalized lvalues |
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| 36 | // 3. designation with and without '=' (use ':' instead) |
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| 37 | // 4. attributes not allowed in parenthesis of declarator |
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| 38 | // |
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[b87a5ed] | 39 | // All of the syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for |
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| 40 | // Cforall (CFA), which fixes several of C's outstanding problems and extends C with many modern language |
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| 41 | // concepts. All of the syntactic extensions for CFA C are marked with the comment "CFA". As noted above, |
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| 42 | // there is one unreconcileable parsing problem between C99 and CFA with respect to designators; this is |
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| 43 | // discussed in detail before the "designation" grammar rule. |
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[51b7345] | 44 | |
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| 45 | %{ |
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[b87a5ed] | 46 | #define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time |
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| 47 | #define YYDEBUG 1 // get the pretty debugging code to compile |
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[51b7345] | 48 | |
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| 49 | #undef __GNUC_MINOR__ |
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| 50 | |
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| 51 | #include <cstdio> |
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| 52 | #include <stack> |
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| 53 | #include "TypedefTable.h" |
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| 54 | #include "lex.h" |
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| 55 | #include "ParseNode.h" |
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| 56 | #include "LinkageSpec.h" |
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| 57 | |
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[b87a5ed] | 58 | DeclarationNode *theTree = 0; // the resulting parse tree |
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[51b7345] | 59 | LinkageSpec::Type linkage = LinkageSpec::Cforall; |
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| 60 | std::stack< LinkageSpec::Type > linkageStack; |
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| 61 | TypedefTable typedefTable; |
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| 62 | %} |
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| 63 | |
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[c11e31c] | 64 | //************************* TERMINAL TOKENS ******************************** |
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[51b7345] | 65 | |
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[c11e31c] | 66 | // keywords |
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[51b7345] | 67 | %token TYPEDEF |
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| 68 | %token AUTO EXTERN REGISTER STATIC |
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[b87a5ed] | 69 | %token INLINE // C99 |
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| 70 | %token FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1) |
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[51b7345] | 71 | %token CONST VOLATILE |
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[b87a5ed] | 72 | %token RESTRICT // C99 |
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| 73 | %token FORALL LVALUE // CFA |
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[51b7345] | 74 | %token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED |
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[b87a5ed] | 75 | %token BOOL COMPLEX IMAGINARY // C99 |
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| 76 | %token TYPEOF LABEL // GCC |
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[51b7345] | 77 | %token ENUM STRUCT UNION |
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[b87a5ed] | 78 | %token TYPE FTYPE DTYPE CONTEXT // CFA |
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[51b7345] | 79 | %token SIZEOF |
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[b87a5ed] | 80 | %token ATTRIBUTE EXTENSION // GCC |
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[51b7345] | 81 | %token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN |
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[b87a5ed] | 82 | %token CHOOSE FALLTHRU TRY CATCH FINALLY THROW // CFA |
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| 83 | %token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1) |
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[c11e31c] | 84 | %token ALIGNAS ALIGNOF ATOMIC GENERIC NORETURN STATICASSERT THREADLOCAL // C11 |
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[51b7345] | 85 | |
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[c11e31c] | 86 | // names and constants: lexer differentiates between identifier and typedef names |
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[b87a5ed] | 87 | %token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname |
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| 88 | %token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname |
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| 89 | %token<tok> INTEGERconstant FLOATINGconstant CHARACTERconstant STRINGliteral |
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| 90 | %token<tok> ZERO ONE // CFA |
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[51b7345] | 91 | |
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[c11e31c] | 92 | // multi-character operators |
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[b87a5ed] | 93 | %token ARROW // -> |
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| 94 | %token ICR DECR // ++ -- |
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| 95 | %token LS RS // << >> |
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| 96 | %token LE GE EQ NE // <= >= == != |
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| 97 | %token ANDAND OROR // && || |
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| 98 | %token ELLIPSIS // ... |
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| 99 | |
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| 100 | %token MULTassign DIVassign MODassign // *= /= %=/ |
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| 101 | %token PLUSassign MINUSassign // += -= |
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| 102 | %token LSassign RSassign // <<= >>= |
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| 103 | %token ANDassign ERassign ORassign // &= ^= |= |
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[51b7345] | 104 | |
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[c11e31c] | 105 | // Types declaration |
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[51b7345] | 106 | %union |
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| 107 | { |
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[b87a5ed] | 108 | Token tok; |
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| 109 | ParseNode *pn; |
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| 110 | ExpressionNode *en; |
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| 111 | DeclarationNode *decl; |
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| 112 | DeclarationNode::TyCon aggKey; |
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| 113 | DeclarationNode::TypeClass tclass; |
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| 114 | StatementNode *sn; |
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| 115 | ConstantNode *constant; |
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| 116 | InitializerNode *in; |
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[51b7345] | 117 | } |
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| 118 | |
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| 119 | %type<tok> zero_one identifier no_attr_identifier no_01_identifier |
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| 120 | %type<tok> identifier_or_typedef_name no_attr_identifier_or_typedef_name no_01_identifier_or_typedef_name |
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| 121 | %type<constant> string_literal_list |
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| 122 | |
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[c11e31c] | 123 | // expressions |
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[51b7345] | 124 | %type<constant> constant |
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[b87a5ed] | 125 | %type<en> tuple tuple_expression_list |
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| 126 | %type<en> unary_operator assignment_operator |
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| 127 | %type<en> primary_expression postfix_expression unary_expression |
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| 128 | %type<en> cast_expression multiplicative_expression additive_expression shift_expression |
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| 129 | %type<en> relational_expression equality_expression AND_expression exclusive_OR_expression |
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| 130 | %type<en> inclusive_OR_expression logical_AND_expression logical_OR_expression conditional_expression |
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| 131 | %type<en> constant_expression assignment_expression assignment_expression_opt |
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| 132 | %type<en> comma_expression comma_expression_opt |
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| 133 | %type<en> argument_expression_list argument_expression for_control_expression assignment_opt |
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[51b7345] | 134 | %type<en> subrange |
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| 135 | |
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[c11e31c] | 136 | // statements |
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[b87a5ed] | 137 | %type<sn> labeled_statement compound_statement expression_statement selection_statement |
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| 138 | %type<sn> iteration_statement jump_statement exception_statement asm_statement |
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| 139 | %type<sn> fall_through_opt fall_through |
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| 140 | %type<sn> statement statement_list |
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| 141 | %type<sn> block_item_list block_item |
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[51b7345] | 142 | %type<sn> case_clause |
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[b87a5ed] | 143 | %type<en> case_value case_value_list |
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| 144 | %type<sn> case_label case_label_list |
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| 145 | %type<sn> switch_clause_list_opt switch_clause_list choose_clause_list_opt choose_clause_list |
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| 146 | %type<pn> handler_list handler_clause finally_clause |
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[51b7345] | 147 | |
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[c11e31c] | 148 | // declarations |
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[51b7345] | 149 | %type<decl> abstract_array abstract_declarator abstract_function abstract_parameter_array |
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| 150 | %type<decl> abstract_parameter_declaration abstract_parameter_declarator abstract_parameter_function |
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| 151 | %type<decl> abstract_parameter_ptr abstract_ptr |
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| 152 | |
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| 153 | %type<aggKey> aggregate_key |
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| 154 | %type<decl> aggregate_name |
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| 155 | |
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| 156 | %type<decl> array_dimension array_parameter_1st_dimension array_parameter_dimension multi_array_dimension |
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| 157 | |
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| 158 | %type<decl> assertion assertion_list_opt |
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| 159 | |
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| 160 | %type<en> bit_subrange_size_opt bit_subrange_size |
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| 161 | |
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| 162 | %type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type_name indirect_type_name |
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| 163 | |
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| 164 | %type<decl> context_declaration context_declaration_list context_declaring_list context_specifier |
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| 165 | |
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| 166 | %type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list |
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| 167 | %type<decl> declaration_specifier declarator declaring_list |
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| 168 | |
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| 169 | %type<decl> elaborated_type_name |
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| 170 | |
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| 171 | %type<decl> enumerator_list enum_name |
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| 172 | %type<en> enumerator_value_opt |
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| 173 | |
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| 174 | %type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt |
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| 175 | |
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| 176 | %type<decl> field_declaration field_declaration_list field_declarator field_declaring_list |
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| 177 | %type<en> field field_list |
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| 178 | |
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[4d51835] | 179 | %type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr |
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[51b7345] | 180 | |
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| 181 | %type<decl> identifier_parameter_array identifier_parameter_declarator identifier_parameter_function |
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| 182 | %type<decl> identifier_parameter_ptr identifier_list |
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| 183 | |
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| 184 | %type<decl> new_abstract_array new_abstract_declarator_no_tuple new_abstract_declarator_tuple |
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| 185 | %type<decl> new_abstract_function new_abstract_parameter_declaration new_abstract_parameter_list |
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| 186 | %type<decl> new_abstract_ptr new_abstract_tuple |
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| 187 | |
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| 188 | %type<decl> new_array_parameter_1st_dimension |
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| 189 | |
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| 190 | %type<decl> new_context_declaring_list new_declaration new_field_declaring_list |
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| 191 | %type<decl> new_function_declaration new_function_return new_function_specifier |
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| 192 | |
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| 193 | %type<decl> new_identifier_parameter_array new_identifier_parameter_declarator_no_tuple |
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| 194 | %type<decl> new_identifier_parameter_declarator_tuple new_identifier_parameter_ptr |
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| 195 | |
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| 196 | %type<decl> new_parameter_declaration new_parameter_list new_parameter_type_list new_parameter_type_list_opt |
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| 197 | |
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| 198 | %type<decl> new_typedef_declaration new_variable_declaration new_variable_specifier |
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| 199 | |
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| 200 | %type<decl> old_declaration old_declaration_list old_declaration_list_opt old_function_array |
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| 201 | %type<decl> old_function_declarator old_function_no_ptr old_function_ptr |
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| 202 | |
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| 203 | %type<decl> parameter_declaration parameter_list parameter_type_list |
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| 204 | %type<decl> parameter_type_list_opt |
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| 205 | |
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| 206 | %type<decl> paren_identifier paren_typedef |
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| 207 | |
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| 208 | %type<decl> storage_class storage_class_name storage_class_list |
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| 209 | |
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| 210 | %type<decl> sue_declaration_specifier sue_type_specifier |
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| 211 | |
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| 212 | %type<tclass> type_class |
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| 213 | %type<decl> type_declarator type_declarator_name type_declaring_list |
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| 214 | |
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| 215 | %type<decl> typedef typedef_array typedef_declaration typedef_declaration_specifier typedef_expression |
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| 216 | %type<decl> typedef_function typedef_parameter_array typedef_parameter_function typedef_parameter_ptr |
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| 217 | %type<decl> typedef_parameter_redeclarator typedef_ptr typedef_redeclarator typedef_type_specifier |
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| 218 | %type<decl> typegen_declaration_specifier typegen_type_specifier |
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| 219 | |
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| 220 | %type<decl> type_name type_name_no_function |
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| 221 | %type<decl> type_parameter type_parameter_list |
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| 222 | |
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| 223 | %type<en> type_name_list |
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| 224 | |
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| 225 | %type<decl> type_qualifier type_qualifier_name type_qualifier_list type_qualifier_list_opt type_specifier |
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| 226 | |
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| 227 | %type<decl> variable_abstract_array variable_abstract_declarator variable_abstract_function |
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| 228 | %type<decl> variable_abstract_ptr variable_array variable_declarator variable_function variable_ptr |
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| 229 | |
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[c11e31c] | 230 | // initializers |
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[51b7345] | 231 | %type<in> initializer initializer_list initializer_opt |
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| 232 | |
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[c11e31c] | 233 | // designators |
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[51b7345] | 234 | %type<en> designator designator_list designation |
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| 235 | |
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| 236 | |
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[b87a5ed] | 237 | // Handle single shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string |
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| 238 | // is ambiguous: |
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| 239 | // .---------. matches IF '(' comma_expression ')' statement |
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[c11e31c] | 240 | // if ( C ) S1 else S2 |
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[b87a5ed] | 241 | // `-----------------' matches IF '(' comma_expression ')' statement ELSE statement */ |
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[51b7345] | 242 | |
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[c11e31c] | 243 | %nonassoc THEN // rule precedence for IF '(' comma_expression ')' statement |
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| 244 | %nonassoc ELSE // token precedence for start of else clause in IF statement |
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[51b7345] | 245 | |
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[b87a5ed] | 246 | %start translation_unit // parse-tree root |
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[51b7345] | 247 | |
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| 248 | %% |
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[c11e31c] | 249 | //************************* Namespace Management ******************************** |
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| 250 | |
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[b87a5ed] | 251 | // The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal |
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| 252 | // symbols "identifier" and "TYPEDEFname" that are lexically identical. While it is possible to write a |
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| 253 | // purely context-free grammar, such a grammar would obscure the relationship between syntactic and semantic |
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| 254 | // constructs. Hence, this grammar uses the ANSI style. |
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[c11e31c] | 255 | // |
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[b87a5ed] | 256 | // Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, |
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| 257 | // those introduced through "forall" qualifiers), and by introducing "type generators" -- parametrized types. |
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| 258 | // This latter type name creates a third class of identifiers that must be distinguished by the scanner. |
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[c11e31c] | 259 | // |
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[b87a5ed] | 260 | // Since the scanner cannot distinguish among the different classes of identifiers without some context |
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| 261 | // information, it accesses a data structure (the TypedefTable) to allow classification of an identifier that |
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| 262 | // it has just read. Semantic actions during the parser update this data structure when the class of |
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| 263 | // identifiers change. |
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[c11e31c] | 264 | // |
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[b87a5ed] | 265 | // Because the Cforall language is block-scoped, there is the possibility that an identifier can change its |
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| 266 | // class in a local scope; it must revert to its original class at the end of the block. Since type names can |
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| 267 | // be local to a particular declaration, each declaration is itself a scope. This requires distinguishing |
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| 268 | // between type names that are local to the current declaration scope and those that persist past the end of |
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| 269 | // the declaration (i.e., names defined in "typedef" or "type" declarations). |
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[c11e31c] | 270 | // |
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[b87a5ed] | 271 | // The non-terminals "push" and "pop" derive the empty string; their only use is to denote the opening and |
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| 272 | // closing of scopes. Every push must have a matching pop, although it is regrettable the matching pairs do |
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| 273 | // not always occur within the same rule. These non-terminals may appear in more contexts than strictly |
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| 274 | // necessary from a semantic point of view. Unfortunately, these extra rules are necessary to prevent parsing |
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| 275 | // conflicts -- the parser may not have enough context and look-ahead information to decide whether a new |
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| 276 | // scope is necessary, so the effect of these extra rules is to open a new scope unconditionally. As the |
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| 277 | // grammar evolves, it may be neccesary to add or move around "push" and "pop" nonterminals to resolve |
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| 278 | // conflicts of this sort. |
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[51b7345] | 279 | |
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| 280 | push: |
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[4d51835] | 281 | { |
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| 282 | typedefTable.enterScope(); |
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| 283 | } |
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| 284 | ; |
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[51b7345] | 285 | |
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| 286 | pop: |
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[4d51835] | 287 | { |
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| 288 | typedefTable.leaveScope(); |
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| 289 | } |
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| 290 | ; |
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[51b7345] | 291 | |
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[c11e31c] | 292 | //************************* CONSTANTS ******************************** |
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[51b7345] | 293 | |
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| 294 | constant: |
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[4d51835] | 295 | // ENUMERATIONconstant is not included here; it is treated as a variable with type |
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| 296 | // "enumeration constant". |
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| 297 | INTEGERconstant { $$ = new ConstantNode(ConstantNode::Integer, $1); } |
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| 298 | | FLOATINGconstant { $$ = new ConstantNode(ConstantNode::Float, $1); } |
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| 299 | | CHARACTERconstant { $$ = new ConstantNode(ConstantNode::Character, $1); } |
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| 300 | ; |
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[51b7345] | 301 | |
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| 302 | identifier: |
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[4d51835] | 303 | IDENTIFIER |
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| 304 | | ATTR_IDENTIFIER // CFA |
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| 305 | | zero_one // CFA |
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| 306 | ; |
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[51b7345] | 307 | |
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| 308 | no_01_identifier: |
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[4d51835] | 309 | IDENTIFIER |
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| 310 | | ATTR_IDENTIFIER // CFA |
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| 311 | ; |
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[51b7345] | 312 | |
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| 313 | no_attr_identifier: |
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[4d51835] | 314 | IDENTIFIER |
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| 315 | ; |
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[51b7345] | 316 | |
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[b87a5ed] | 317 | zero_one: // CFA |
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[4d51835] | 318 | ZERO |
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| 319 | | ONE |
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| 320 | ; |
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[51b7345] | 321 | |
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[b87a5ed] | 322 | string_literal_list: // juxtaposed strings are concatenated |
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[4d51835] | 323 | STRINGliteral { $$ = new ConstantNode(ConstantNode::String, $1); } |
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| 324 | | string_literal_list STRINGliteral { $$ = $1->append( $2 ); } |
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| 325 | ; |
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[51b7345] | 326 | |
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[c11e31c] | 327 | //************************* EXPRESSIONS ******************************** |
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[51b7345] | 328 | |
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| 329 | primary_expression: |
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[4d51835] | 330 | IDENTIFIER // typedef name cannot be used as a variable name |
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| 331 | { $$ = new VarRefNode($1); } |
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| 332 | | zero_one |
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| 333 | { $$ = new VarRefNode($1); } |
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| 334 | | constant |
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| 335 | { $$ = $1; } |
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| 336 | | string_literal_list |
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| 337 | { $$ = $1; } |
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| 338 | | '(' comma_expression ')' |
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| 339 | { $$ = $2; } |
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| 340 | | '(' compound_statement ')' // GCC, lambda expression |
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| 341 | { $$ = new ValofExprNode($2); } |
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| 342 | ; |
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[51b7345] | 343 | |
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| 344 | postfix_expression: |
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[4d51835] | 345 | primary_expression |
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| 346 | | postfix_expression '[' push assignment_expression pop ']' |
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| 347 | // CFA, comma_expression disallowed in the context because it results in a commom user error: |
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| 348 | // subscripting a matrix with x[i,j] instead of x[i][j]. While this change is not backwards |
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| 349 | // compatible, there seems to be little advantage to this feature and many disadvantages. It is |
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| 350 | // possible to write x[(i,j)] in CFA, which is equivalent to the old x[i,j]. |
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| 351 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Index), $1, $4); } |
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| 352 | | postfix_expression '(' argument_expression_list ')' |
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| 353 | { $$ = new CompositeExprNode($1, $3); } |
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| 354 | | postfix_expression '.' no_attr_identifier |
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| 355 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::FieldSel), $1, new VarRefNode($3)); } |
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| 356 | | postfix_expression '.' '[' push field_list pop ']' // CFA, tuple field selector |
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| 357 | | postfix_expression ARROW no_attr_identifier |
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| 358 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::PFieldSel), $1, new VarRefNode($3)); } |
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| 359 | | postfix_expression ARROW '[' push field_list pop ']' // CFA, tuple field selector |
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| 360 | | postfix_expression ICR |
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| 361 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::IncrPost), $1); } |
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| 362 | | postfix_expression DECR |
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| 363 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::DecrPost), $1); } |
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| 364 | // GCC has priority: cast_expression |
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| 365 | | '(' type_name_no_function ')' '{' initializer_list comma_opt '}' // C99 |
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| 366 | { $$ = 0; } |
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| 367 | ; |
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[51b7345] | 368 | |
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| 369 | argument_expression_list: |
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[4d51835] | 370 | argument_expression |
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| 371 | | argument_expression_list ',' argument_expression |
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| 372 | { $$ = (ExpressionNode *)($1->set_link($3)); } |
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| 373 | ; |
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[51b7345] | 374 | |
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| 375 | argument_expression: |
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[4d51835] | 376 | // empty |
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| 377 | { $$ = 0; } // use default argument |
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| 378 | | assignment_expression |
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| 379 | | no_attr_identifier ':' assignment_expression |
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| 380 | { $$ = $3->set_asArgName($1); } |
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| 381 | // Only a list of no_attr_identifier_or_typedef_name is allowed in this context. However, there is |
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| 382 | // insufficient look ahead to distinguish between this list of parameter names and a tuple, so the |
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| 383 | // tuple form must be used with an appropriate semantic check. |
---|
| 384 | | '[' push assignment_expression pop ']' ':' assignment_expression |
---|
| 385 | { $$ = $7->set_asArgName($3); } |
---|
| 386 | | '[' push assignment_expression ',' tuple_expression_list pop ']' ':' assignment_expression |
---|
| 387 | { $$ = $9->set_asArgName( new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)$3->set_link( flattenCommas( $5 )))); } |
---|
| 388 | ; |
---|
[b87a5ed] | 389 | |
---|
| 390 | field_list: // CFA, tuple field selector |
---|
[4d51835] | 391 | field |
---|
| 392 | | field_list ',' field { $$ = (ExpressionNode *)$1->set_link( $3 ); } |
---|
| 393 | ; |
---|
[b87a5ed] | 394 | |
---|
| 395 | field: // CFA, tuple field selector |
---|
[4d51835] | 396 | no_attr_identifier |
---|
| 397 | { $$ = new VarRefNode( $1 ); } |
---|
| 398 | | no_attr_identifier '.' field |
---|
| 399 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::FieldSel), new VarRefNode( $1 ), $3); } |
---|
| 400 | | no_attr_identifier '.' '[' push field_list pop ']' |
---|
| 401 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::FieldSel), new VarRefNode( $1 ), $5); } |
---|
| 402 | | no_attr_identifier ARROW field |
---|
| 403 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::PFieldSel), new VarRefNode( $1 ), $3); } |
---|
| 404 | | no_attr_identifier ARROW '[' push field_list pop ']' |
---|
| 405 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::PFieldSel), new VarRefNode( $1 ), $5); } |
---|
| 406 | ; |
---|
[51b7345] | 407 | |
---|
| 408 | unary_expression: |
---|
[4d51835] | 409 | postfix_expression |
---|
| 410 | | ICR unary_expression |
---|
| 411 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Incr), $2); } |
---|
| 412 | | DECR unary_expression |
---|
| 413 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Decr), $2); } |
---|
| 414 | | EXTENSION cast_expression // GCC |
---|
| 415 | { $$ = $2; } |
---|
| 416 | | unary_operator cast_expression |
---|
| 417 | { $$ = new CompositeExprNode($1, $2); } |
---|
| 418 | | '!' cast_expression |
---|
| 419 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Neg), $2); } |
---|
| 420 | | '*' cast_expression // CFA |
---|
| 421 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::PointTo), $2); } |
---|
| 422 | // '*' is is separated from unary_operator because of shift/reduce conflict in: |
---|
| 423 | // { * X; } // dereference X |
---|
| 424 | // { * int X; } // CFA declaration of pointer to int |
---|
| 425 | // '&' must be moved here if C++ reference variables are supported. |
---|
| 426 | | SIZEOF unary_expression |
---|
| 427 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::SizeOf), $2); } |
---|
| 428 | | SIZEOF '(' type_name_no_function ')' |
---|
| 429 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::SizeOf), new TypeValueNode($3)); } |
---|
| 430 | | ATTR_IDENTIFIER |
---|
| 431 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Attr), new VarRefNode($1)); } |
---|
| 432 | | ATTR_IDENTIFIER '(' type_name ')' |
---|
| 433 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Attr), new VarRefNode($1), new TypeValueNode($3)); } |
---|
| 434 | | ATTR_IDENTIFIER '(' argument_expression ')' |
---|
| 435 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Attr), new VarRefNode($1), $3); } |
---|
| 436 | | ALIGNOF unary_expression // GCC, variable alignment |
---|
| 437 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::AlignOf), $2); } |
---|
| 438 | | ALIGNOF '(' type_name_no_function ')' // GCC, type alignment |
---|
| 439 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::AlignOf), new TypeValueNode($3)); } |
---|
| 440 | | ANDAND no_attr_identifier // GCC, address of label |
---|
| 441 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::LabelAddress), new VarRefNode($2, true)); } |
---|
| 442 | ; |
---|
[51b7345] | 443 | |
---|
| 444 | unary_operator: |
---|
[4d51835] | 445 | '&' { $$ = new OperatorNode(OperatorNode::AddressOf); } |
---|
| 446 | | '+' { $$ = new OperatorNode(OperatorNode::UnPlus); } |
---|
| 447 | | '-' { $$ = new OperatorNode(OperatorNode::UnMinus); } |
---|
| 448 | | '~' { $$ = new OperatorNode(OperatorNode::BitNeg); } |
---|
| 449 | ; |
---|
[51b7345] | 450 | |
---|
| 451 | cast_expression: |
---|
[4d51835] | 452 | unary_expression |
---|
| 453 | | '(' type_name_no_function ')' cast_expression |
---|
| 454 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Cast), new TypeValueNode($2), $4); } |
---|
| 455 | | '(' type_name_no_function ')' tuple |
---|
| 456 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Cast), new TypeValueNode($2), $4); } |
---|
| 457 | ; |
---|
[51b7345] | 458 | |
---|
| 459 | multiplicative_expression: |
---|
[4d51835] | 460 | cast_expression |
---|
| 461 | | multiplicative_expression '*' cast_expression |
---|
| 462 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Mul),$1,$3); } |
---|
| 463 | | multiplicative_expression '/' cast_expression |
---|
| 464 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Div),$1,$3); } |
---|
| 465 | | multiplicative_expression '%' cast_expression |
---|
| 466 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Mod),$1,$3); } |
---|
| 467 | ; |
---|
[51b7345] | 468 | |
---|
| 469 | additive_expression: |
---|
[4d51835] | 470 | multiplicative_expression |
---|
| 471 | | additive_expression '+' multiplicative_expression |
---|
| 472 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Plus),$1,$3); } |
---|
| 473 | | additive_expression '-' multiplicative_expression |
---|
| 474 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Minus),$1,$3); } |
---|
| 475 | ; |
---|
[51b7345] | 476 | |
---|
| 477 | shift_expression: |
---|
[4d51835] | 478 | additive_expression |
---|
| 479 | | shift_expression LS additive_expression |
---|
| 480 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::LShift),$1,$3); } |
---|
| 481 | | shift_expression RS additive_expression |
---|
| 482 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::RShift),$1,$3); } |
---|
| 483 | ; |
---|
[51b7345] | 484 | |
---|
| 485 | relational_expression: |
---|
[4d51835] | 486 | shift_expression |
---|
| 487 | | relational_expression '<' shift_expression |
---|
| 488 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::LThan),$1,$3); } |
---|
| 489 | | relational_expression '>' shift_expression |
---|
| 490 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::GThan),$1,$3); } |
---|
| 491 | | relational_expression LE shift_expression |
---|
| 492 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::LEThan),$1,$3); } |
---|
| 493 | | relational_expression GE shift_expression |
---|
| 494 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::GEThan),$1,$3); } |
---|
| 495 | ; |
---|
[51b7345] | 496 | |
---|
| 497 | equality_expression: |
---|
[4d51835] | 498 | relational_expression |
---|
| 499 | | equality_expression EQ relational_expression |
---|
| 500 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Eq), $1, $3); } |
---|
| 501 | | equality_expression NE relational_expression |
---|
| 502 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Neq), $1, $3); } |
---|
| 503 | ; |
---|
[51b7345] | 504 | |
---|
| 505 | AND_expression: |
---|
[4d51835] | 506 | equality_expression |
---|
| 507 | | AND_expression '&' equality_expression |
---|
| 508 | { $$ =new CompositeExprNode(new OperatorNode(OperatorNode::BitAnd), $1, $3); } |
---|
| 509 | ; |
---|
[51b7345] | 510 | |
---|
| 511 | exclusive_OR_expression: |
---|
[4d51835] | 512 | AND_expression |
---|
| 513 | | exclusive_OR_expression '^' AND_expression |
---|
| 514 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Xor), $1, $3); } |
---|
| 515 | ; |
---|
[51b7345] | 516 | |
---|
| 517 | inclusive_OR_expression: |
---|
[4d51835] | 518 | exclusive_OR_expression |
---|
| 519 | | inclusive_OR_expression '|' exclusive_OR_expression |
---|
| 520 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::BitOr), $1, $3); } |
---|
| 521 | ; |
---|
[51b7345] | 522 | |
---|
| 523 | logical_AND_expression: |
---|
[4d51835] | 524 | inclusive_OR_expression |
---|
| 525 | | logical_AND_expression ANDAND inclusive_OR_expression |
---|
| 526 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::And), $1, $3); } |
---|
| 527 | ; |
---|
[51b7345] | 528 | |
---|
| 529 | logical_OR_expression: |
---|
[4d51835] | 530 | logical_AND_expression |
---|
| 531 | | logical_OR_expression OROR logical_AND_expression |
---|
| 532 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Or), $1, $3); } |
---|
| 533 | ; |
---|
[51b7345] | 534 | |
---|
| 535 | conditional_expression: |
---|
[4d51835] | 536 | logical_OR_expression |
---|
| 537 | | logical_OR_expression '?' comma_expression ':' conditional_expression |
---|
| 538 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Cond), (ExpressionNode *)mkList((*$1,*$3,*$5))); } |
---|
| 539 | | logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand |
---|
| 540 | { $$=new CompositeExprNode(new OperatorNode(OperatorNode::NCond),$1,$4); } |
---|
| 541 | | logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression |
---|
| 542 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Cond), (ExpressionNode *)mkList(( *$1, *$3, *$5 ))); } |
---|
| 543 | ; |
---|
[51b7345] | 544 | |
---|
| 545 | constant_expression: |
---|
[4d51835] | 546 | conditional_expression |
---|
| 547 | ; |
---|
[51b7345] | 548 | |
---|
| 549 | assignment_expression: |
---|
[4d51835] | 550 | // CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples |
---|
| 551 | conditional_expression |
---|
| 552 | | unary_expression '=' assignment_expression |
---|
| 553 | { $$ =new CompositeExprNode(new OperatorNode(OperatorNode::Assign), $1, $3); } |
---|
| 554 | | unary_expression assignment_operator assignment_expression |
---|
| 555 | { $$ =new CompositeExprNode($2, $1, $3); } |
---|
| 556 | | tuple assignment_opt // CFA, tuple expression |
---|
| 557 | { $$ = ($2 == 0) ? $1 : new CompositeExprNode( new OperatorNode( OperatorNode::Assign ), $1, $2 ); } |
---|
| 558 | ; |
---|
[51b7345] | 559 | |
---|
| 560 | assignment_expression_opt: |
---|
[4d51835] | 561 | // empty |
---|
| 562 | { $$ = new NullExprNode; } |
---|
| 563 | | assignment_expression |
---|
| 564 | ; |
---|
[b87a5ed] | 565 | |
---|
| 566 | tuple: // CFA, tuple |
---|
[4d51835] | 567 | // CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce |
---|
| 568 | // conflict with comma_expression in new_identifier_parameter_array and new_abstract_array |
---|
| 569 | '[' push pop ']' |
---|
| 570 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ) ); } |
---|
| 571 | | '[' push assignment_expression pop ']' |
---|
| 572 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), $3 ); } |
---|
| 573 | | '[' push ',' tuple_expression_list pop ']' |
---|
| 574 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)(new NullExprNode)->set_link( $4 ) ); } |
---|
| 575 | | '[' push assignment_expression ',' tuple_expression_list pop ']' |
---|
| 576 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)$3->set_link( flattenCommas( $5 ) ) ); } |
---|
| 577 | ; |
---|
[51b7345] | 578 | |
---|
| 579 | tuple_expression_list: |
---|
[4d51835] | 580 | assignment_expression_opt |
---|
| 581 | | tuple_expression_list ',' assignment_expression_opt |
---|
| 582 | { $$ = (ExpressionNode *)$1->set_link( $3 ); } |
---|
| 583 | ; |
---|
[51b7345] | 584 | |
---|
| 585 | assignment_operator: |
---|
[4d51835] | 586 | MULTassign { $$ = new OperatorNode(OperatorNode::MulAssn); } |
---|
| 587 | | DIVassign { $$ = new OperatorNode(OperatorNode::DivAssn); } |
---|
| 588 | | MODassign { $$ = new OperatorNode(OperatorNode::ModAssn); } |
---|
| 589 | | PLUSassign { $$ = new OperatorNode(OperatorNode::PlusAssn); } |
---|
| 590 | | MINUSassign { $$ = new OperatorNode(OperatorNode::MinusAssn); } |
---|
| 591 | | LSassign { $$ = new OperatorNode(OperatorNode::LSAssn); } |
---|
| 592 | | RSassign { $$ = new OperatorNode(OperatorNode::RSAssn); } |
---|
| 593 | | ANDassign { $$ = new OperatorNode(OperatorNode::AndAssn); } |
---|
| 594 | | ERassign { $$ = new OperatorNode(OperatorNode::ERAssn); } |
---|
| 595 | | ORassign { $$ = new OperatorNode(OperatorNode::OrAssn); } |
---|
| 596 | ; |
---|
[51b7345] | 597 | |
---|
| 598 | comma_expression: |
---|
[4d51835] | 599 | assignment_expression |
---|
| 600 | | comma_expression ',' assignment_expression // { $$ = (ExpressionNode *)$1->add_to_list($3); } |
---|
| 601 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Comma),$1,$3); } |
---|
| 602 | ; |
---|
[51b7345] | 603 | |
---|
| 604 | comma_expression_opt: |
---|
[4d51835] | 605 | // empty |
---|
| 606 | { $$ = 0; } |
---|
| 607 | | comma_expression |
---|
| 608 | ; |
---|
[51b7345] | 609 | |
---|
[c11e31c] | 610 | //*************************** STATEMENTS ******************************* |
---|
[51b7345] | 611 | |
---|
| 612 | statement: |
---|
[4d51835] | 613 | labeled_statement |
---|
| 614 | | compound_statement |
---|
| 615 | | expression_statement { $$ = $1; } |
---|
| 616 | | selection_statement |
---|
| 617 | | iteration_statement |
---|
| 618 | | jump_statement |
---|
| 619 | | exception_statement |
---|
| 620 | | asm_statement |
---|
| 621 | ; |
---|
[51b7345] | 622 | |
---|
| 623 | labeled_statement: |
---|
[4d51835] | 624 | no_attr_identifier ':' attribute_list_opt statement |
---|
| 625 | { $$ = $4->add_label($1);} |
---|
| 626 | ; |
---|
[51b7345] | 627 | |
---|
| 628 | compound_statement: |
---|
[4d51835] | 629 | '{' '}' |
---|
| 630 | { $$ = new CompoundStmtNode( (StatementNode *)0 ); } |
---|
| 631 | | '{' |
---|
| 632 | // Two scopes are necessary because the block itself has a scope, but every declaration within the |
---|
| 633 | // block also requires its own scope |
---|
| 634 | push push |
---|
| 635 | label_declaration_opt // GCC, local labels |
---|
| 636 | block_item_list pop '}' // C99, intermix declarations and statements |
---|
| 637 | { $$ = new CompoundStmtNode( $5 ); } |
---|
| 638 | ; |
---|
[b87a5ed] | 639 | |
---|
| 640 | block_item_list: // C99 |
---|
[4d51835] | 641 | block_item |
---|
| 642 | | block_item_list push block_item |
---|
| 643 | { if ($1 != 0) { $1->set_link($3); $$ = $1; } } |
---|
| 644 | ; |
---|
[51b7345] | 645 | |
---|
| 646 | block_item: |
---|
[4d51835] | 647 | declaration // CFA, new & old style declarations |
---|
| 648 | { $$ = new StatementNode( $1 ); } |
---|
| 649 | | EXTENSION declaration // GCC |
---|
| 650 | { $$ = new StatementNode( $2 ); } |
---|
| 651 | | function_definition |
---|
| 652 | { $$ = new StatementNode( $1 ); } |
---|
| 653 | | statement pop |
---|
| 654 | ; |
---|
[51b7345] | 655 | |
---|
| 656 | statement_list: |
---|
[4d51835] | 657 | statement |
---|
| 658 | | statement_list statement |
---|
| 659 | { if ($1 != 0) { $1->set_link($2); $$ = $1; } } |
---|
| 660 | ; |
---|
[51b7345] | 661 | |
---|
| 662 | expression_statement: |
---|
[4d51835] | 663 | comma_expression_opt ';' |
---|
| 664 | { $$ = new StatementNode(StatementNode::Exp, $1, 0); } |
---|
| 665 | ; |
---|
[51b7345] | 666 | |
---|
| 667 | selection_statement: |
---|
[4d51835] | 668 | IF '(' comma_expression ')' statement %prec THEN |
---|
| 669 | // explicitly deal with the shift/reduce conflict on if/else |
---|
| 670 | { $$ = new StatementNode(StatementNode::If, $3, $5); } |
---|
| 671 | | IF '(' comma_expression ')' statement ELSE statement |
---|
| 672 | { $$ = new StatementNode(StatementNode::If, $3, (StatementNode *)mkList((*$5, *$7)) ); } |
---|
| 673 | | SWITCH '(' comma_expression ')' case_clause // CFA |
---|
| 674 | { $$ = new StatementNode(StatementNode::Switch, $3, $5); } |
---|
| 675 | | SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA |
---|
| 676 | { $$ = new StatementNode(StatementNode::Switch, $3, $8); /* xxx */ } |
---|
| 677 | // The semantics of the declaration list is changed to include any associated initialization, which is |
---|
| 678 | // performed *before* the transfer to the appropriate case clause. Statements after the initial |
---|
| 679 | // declaration list can never be executed, and therefore, are removed from the grammar even though C |
---|
| 680 | // allows it. |
---|
| 681 | | CHOOSE '(' comma_expression ')' case_clause // CFA |
---|
| 682 | { $$ = new StatementNode(StatementNode::Choose, $3, $5); } |
---|
| 683 | | CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA |
---|
| 684 | { $$ = new StatementNode(StatementNode::Choose, $3, $8); } |
---|
| 685 | ; |
---|
[b87a5ed] | 686 | |
---|
| 687 | // CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a |
---|
| 688 | // case clause allows a list of values and subranges. |
---|
| 689 | |
---|
| 690 | case_value: // CFA |
---|
[4d51835] | 691 | constant_expression { $$ = $1; } |
---|
| 692 | | constant_expression ELLIPSIS constant_expression // GCC, subrange |
---|
| 693 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Range),$1,$3); } |
---|
| 694 | | subrange // CFA, subrange |
---|
| 695 | ; |
---|
[b87a5ed] | 696 | |
---|
| 697 | case_value_list: // CFA |
---|
[4d51835] | 698 | case_value |
---|
| 699 | | case_value_list ',' case_value |
---|
| 700 | { $$ = new CompositeExprNode(new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)(tupleContents($1))->set_link($3) ); } |
---|
| 701 | ; |
---|
[b87a5ed] | 702 | |
---|
| 703 | case_label: // CFA |
---|
[4d51835] | 704 | CASE case_value_list ':' { $$ = new StatementNode(StatementNode::Case, $2, 0); } |
---|
| 705 | | DEFAULT ':' { $$ = new StatementNode(StatementNode::Default); } |
---|
| 706 | // A semantic check is required to ensure only one default clause per switch/choose statement. |
---|
| 707 | ; |
---|
[b87a5ed] | 708 | |
---|
| 709 | case_label_list: // CFA |
---|
[4d51835] | 710 | case_label |
---|
| 711 | | case_label_list case_label { $$ = (StatementNode *)($1->set_link($2)); } |
---|
| 712 | ; |
---|
[b87a5ed] | 713 | |
---|
| 714 | case_clause: // CFA |
---|
[4d51835] | 715 | case_label_list statement { $$ = $1->append_last_case($2); } |
---|
| 716 | ; |
---|
[b87a5ed] | 717 | |
---|
| 718 | switch_clause_list_opt: // CFA |
---|
[4d51835] | 719 | // empty |
---|
| 720 | { $$ = 0; } |
---|
| 721 | | switch_clause_list |
---|
| 722 | ; |
---|
[b87a5ed] | 723 | |
---|
| 724 | switch_clause_list: // CFA |
---|
[4d51835] | 725 | case_label_list statement_list |
---|
| 726 | { $$ = $1->append_last_case($2); } |
---|
| 727 | | switch_clause_list case_label_list statement_list |
---|
| 728 | { $$ = (StatementNode *)($1->set_link($2->append_last_case($3))); } |
---|
| 729 | ; |
---|
[b87a5ed] | 730 | |
---|
| 731 | choose_clause_list_opt: // CFA |
---|
[4d51835] | 732 | // empty |
---|
| 733 | { $$ = 0; } |
---|
| 734 | | choose_clause_list |
---|
| 735 | ; |
---|
[b87a5ed] | 736 | |
---|
| 737 | choose_clause_list: // CFA |
---|
[4d51835] | 738 | case_label_list fall_through |
---|
| 739 | { $$ = $1->append_last_case($2); } |
---|
| 740 | | case_label_list statement_list fall_through_opt |
---|
| 741 | { $$ = $1->append_last_case((StatementNode *)mkList((*$2,*$3))); } |
---|
| 742 | | choose_clause_list case_label_list fall_through |
---|
| 743 | { $$ = (StatementNode *)($1->set_link($2->append_last_case($3))); } |
---|
| 744 | | choose_clause_list case_label_list statement_list fall_through_opt |
---|
| 745 | { $$ = (StatementNode *)($1->set_link($2->append_last_case((StatementNode *)mkList((*$3,*$4))))); } |
---|
| 746 | ; |
---|
[b87a5ed] | 747 | |
---|
| 748 | fall_through_opt: // CFA |
---|
[4d51835] | 749 | // empty |
---|
| 750 | { $$ = 0; } |
---|
| 751 | | fall_through |
---|
| 752 | ; |
---|
[b87a5ed] | 753 | |
---|
| 754 | fall_through: // CFA |
---|
[4d51835] | 755 | FALLTHRU { $$ = new StatementNode(StatementNode::Fallthru, 0, 0); } |
---|
| 756 | | FALLTHRU ';' { $$ = new StatementNode(StatementNode::Fallthru, 0, 0); } |
---|
| 757 | ; |
---|
[51b7345] | 758 | |
---|
| 759 | iteration_statement: |
---|
[4d51835] | 760 | WHILE '(' comma_expression ')' statement |
---|
| 761 | { $$ = new StatementNode(StatementNode::While, $3, $5); } |
---|
| 762 | | DO statement WHILE '(' comma_expression ')' ';' |
---|
| 763 | { $$ = new StatementNode(StatementNode::Do, $5, $2); } |
---|
| 764 | | FOR '(' push for_control_expression ')' statement |
---|
| 765 | { $$ = new StatementNode(StatementNode::For, $4, $6); } |
---|
| 766 | ; |
---|
[51b7345] | 767 | |
---|
| 768 | for_control_expression: |
---|
[4d51835] | 769 | comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt |
---|
| 770 | { $$ = new ForCtlExprNode($1, $4, $6); } |
---|
| 771 | | declaration comma_expression_opt ';' comma_expression_opt // C99 |
---|
| 772 | // Like C++, the loop index can be declared local to the loop. |
---|
| 773 | { $$ = new ForCtlExprNode($1, $2, $4); } |
---|
| 774 | ; |
---|
[51b7345] | 775 | |
---|
| 776 | jump_statement: |
---|
[4d51835] | 777 | GOTO no_attr_identifier ';' |
---|
| 778 | { $$ = new StatementNode(StatementNode::Goto, $2); } |
---|
| 779 | | GOTO '*' comma_expression ';' // GCC, computed goto |
---|
| 780 | // The syntax for the GCC computed goto violates normal expression precedence, e.g., goto *i+3; => |
---|
| 781 | // goto *(i+3); whereas normal operator precedence yields goto (*i)+3; |
---|
| 782 | { $$ = new StatementNode(StatementNode::Goto, $3); } |
---|
| 783 | | CONTINUE ';' |
---|
| 784 | // A semantic check is required to ensure this statement appears only in the body of an iteration |
---|
| 785 | // statement. |
---|
| 786 | { $$ = new StatementNode(StatementNode::Continue, 0, 0); } |
---|
| 787 | | CONTINUE no_attr_identifier ';' // CFA, multi-level continue |
---|
| 788 | // A semantic check is required to ensure this statement appears only in the body of an iteration |
---|
| 789 | // statement, and the target of the transfer appears only at the start of an iteration statement. |
---|
| 790 | { $$ = new StatementNode(StatementNode::Continue, $2); } |
---|
| 791 | | BREAK ';' |
---|
| 792 | // A semantic check is required to ensure this statement appears only in the body of an iteration |
---|
| 793 | // statement. |
---|
| 794 | { $$ = new StatementNode(StatementNode::Break, 0, 0); } |
---|
| 795 | | BREAK no_attr_identifier ';' // CFA, multi-level exit |
---|
| 796 | // A semantic check is required to ensure this statement appears only in the body of an iteration |
---|
| 797 | // statement, and the target of the transfer appears only at the start of an iteration statement. |
---|
| 798 | { $$ = new StatementNode(StatementNode::Break, $2 ); } |
---|
| 799 | | RETURN comma_expression_opt ';' |
---|
| 800 | { $$ = new StatementNode(StatementNode::Return, $2, 0); } |
---|
| 801 | | THROW assignment_expression ';' |
---|
| 802 | { $$ = new StatementNode(StatementNode::Throw, $2, 0); } |
---|
| 803 | | THROW ';' |
---|
| 804 | { $$ = new StatementNode(StatementNode::Throw, 0, 0); } |
---|
| 805 | ; |
---|
[51b7345] | 806 | |
---|
| 807 | exception_statement: |
---|
[4d51835] | 808 | TRY compound_statement handler_list |
---|
| 809 | { $$ = new StatementNode(StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3)))); } |
---|
| 810 | | TRY compound_statement finally_clause |
---|
| 811 | { $$ = new StatementNode(StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3)))); } |
---|
| 812 | | TRY compound_statement handler_list finally_clause |
---|
| 813 | { |
---|
| 814 | $3->set_link($4); |
---|
| 815 | $$ = new StatementNode(StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3)))); |
---|
| 816 | } |
---|
| 817 | ; |
---|
[51b7345] | 818 | |
---|
| 819 | handler_list: |
---|
[4d51835] | 820 | // There must be at least one catch clause |
---|
| 821 | handler_clause |
---|
| 822 | // ISO/IEC 9899:1999 Section 15.3(6) If present, a "..." handler shall be the last handler for its try |
---|
| 823 | // block. |
---|
| 824 | | CATCH '(' ELLIPSIS ')' compound_statement |
---|
| 825 | { $$ = StatementNode::newCatchStmt( 0, $5, true ); } |
---|
| 826 | | handler_clause CATCH '(' ELLIPSIS ')' compound_statement |
---|
| 827 | { $$ = $1->set_link( StatementNode::newCatchStmt( 0, $6, true ) ); } |
---|
| 828 | ; |
---|
[51b7345] | 829 | |
---|
| 830 | handler_clause: |
---|
[4d51835] | 831 | CATCH '(' push push exception_declaration pop ')' compound_statement pop |
---|
| 832 | { $$ = StatementNode::newCatchStmt($5, $8); } |
---|
| 833 | | handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop |
---|
| 834 | { $$ = $1->set_link( StatementNode::newCatchStmt($6, $9) ); } |
---|
| 835 | ; |
---|
[51b7345] | 836 | |
---|
| 837 | finally_clause: |
---|
[4d51835] | 838 | FINALLY compound_statement |
---|
| 839 | { |
---|
| 840 | $$ = new StatementNode(StatementNode::Finally, 0, $2); |
---|
| 841 | std::cout << "Just created a finally node" << std::endl; |
---|
| 842 | } |
---|
| 843 | ; |
---|
[51b7345] | 844 | |
---|
| 845 | exception_declaration: |
---|
[4d51835] | 846 | // A semantic check is required to ensure type_specifier does not create a new type, e.g.: |
---|
| 847 | // |
---|
| 848 | // catch ( struct { int i; } x ) ... |
---|
| 849 | // |
---|
| 850 | // This new type cannot catch any thrown type because of name equivalence among types. |
---|
| 851 | type_specifier |
---|
| 852 | | type_specifier declarator |
---|
| 853 | { |
---|
| 854 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 855 | $$ = $2->addType( $1 ); |
---|
| 856 | } |
---|
| 857 | | type_specifier variable_abstract_declarator |
---|
| 858 | { $$ = $2->addType( $1 ); } |
---|
| 859 | | new_abstract_declarator_tuple no_attr_identifier // CFA |
---|
| 860 | { |
---|
| 861 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 862 | $$ = $1->addName( $2 ); |
---|
| 863 | } |
---|
| 864 | | new_abstract_declarator_tuple // CFA |
---|
| 865 | ; |
---|
[51b7345] | 866 | |
---|
| 867 | asm_statement: |
---|
[4d51835] | 868 | ASM type_qualifier_list_opt '(' constant_expression ')' ';' |
---|
| 869 | { $$ = new StatementNode(StatementNode::Asm, 0, 0); } |
---|
| 870 | | ASM type_qualifier_list_opt '(' constant_expression ':' asm_operands_opt ')' ';' // remaining GCC |
---|
| 871 | { $$ = new StatementNode(StatementNode::Asm, 0, 0); } |
---|
| 872 | | ASM type_qualifier_list_opt '(' constant_expression ':' asm_operands_opt ':' asm_operands_opt ')' ';' |
---|
| 873 | { $$ = new StatementNode(StatementNode::Asm, 0, 0); } |
---|
| 874 | | ASM type_qualifier_list_opt '(' constant_expression ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list ')' ';' |
---|
| 875 | { $$ = new StatementNode(StatementNode::Asm, 0, 0); } |
---|
| 876 | ; |
---|
[b87a5ed] | 877 | |
---|
| 878 | asm_operands_opt: // GCC |
---|
[4d51835] | 879 | // empty |
---|
| 880 | | asm_operands_list |
---|
| 881 | ; |
---|
[b87a5ed] | 882 | |
---|
| 883 | asm_operands_list: // GCC |
---|
[4d51835] | 884 | asm_operand |
---|
| 885 | | asm_operands_list ',' asm_operand |
---|
| 886 | ; |
---|
[b87a5ed] | 887 | |
---|
| 888 | asm_operand: // GCC |
---|
[4d51835] | 889 | STRINGliteral '(' constant_expression ')' {} |
---|
| 890 | ; |
---|
[b87a5ed] | 891 | |
---|
| 892 | asm_clobbers_list: // GCC |
---|
[4d51835] | 893 | STRINGliteral {} |
---|
| 894 | | asm_clobbers_list ',' STRINGliteral |
---|
| 895 | ; |
---|
[51b7345] | 896 | |
---|
[c11e31c] | 897 | //******************************* DECLARATIONS ********************************* |
---|
[51b7345] | 898 | |
---|
[b87a5ed] | 899 | declaration_list_opt: // used at beginning of switch statement |
---|
[4d51835] | 900 | pop |
---|
| 901 | { $$ = 0; } |
---|
| 902 | | declaration_list |
---|
| 903 | ; |
---|
[51b7345] | 904 | |
---|
| 905 | declaration_list: |
---|
[4d51835] | 906 | declaration |
---|
| 907 | | declaration_list push declaration |
---|
| 908 | { $$ = $1->appendList( $3 ); } |
---|
| 909 | ; |
---|
[51b7345] | 910 | |
---|
[b87a5ed] | 911 | old_declaration_list_opt: // used to declare parameter types in K&R style functions |
---|
[4d51835] | 912 | pop |
---|
| 913 | { $$ = 0; } |
---|
| 914 | | old_declaration_list |
---|
| 915 | ; |
---|
[51b7345] | 916 | |
---|
| 917 | old_declaration_list: |
---|
[4d51835] | 918 | old_declaration |
---|
| 919 | | old_declaration_list push old_declaration |
---|
| 920 | { $$ = $1->appendList( $3 ); } |
---|
| 921 | ; |
---|
[b87a5ed] | 922 | |
---|
| 923 | label_declaration_opt: // GCC, local label |
---|
[4d51835] | 924 | // empty |
---|
| 925 | | label_declaration_list |
---|
| 926 | ; |
---|
[b87a5ed] | 927 | |
---|
| 928 | label_declaration_list: // GCC, local label |
---|
[4d51835] | 929 | LABEL label_list ';' |
---|
| 930 | | label_declaration_list LABEL label_list ';' |
---|
| 931 | ; |
---|
[b87a5ed] | 932 | |
---|
| 933 | label_list: // GCC, local label |
---|
[4d51835] | 934 | no_attr_identifier_or_typedef_name {} |
---|
| 935 | | label_list ',' no_attr_identifier_or_typedef_name {} |
---|
| 936 | ; |
---|
[b87a5ed] | 937 | |
---|
| 938 | declaration: // CFA, new & old style declarations |
---|
[4d51835] | 939 | new_declaration |
---|
| 940 | | old_declaration |
---|
| 941 | ; |
---|
[b87a5ed] | 942 | |
---|
| 943 | // C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and |
---|
| 944 | // function declarations. CFA declarations use the same declaration tokens as in C; however, CFA places |
---|
| 945 | // declaration modifiers to the left of the base type, while C declarations place modifiers to the right of |
---|
| 946 | // the base type. CFA declaration modifiers are interpreted from left to right and the entire type |
---|
| 947 | // specification is distributed across all variables in the declaration list (as in Pascal). ANSI C and the |
---|
| 948 | // new CFA declarations may appear together in the same program block, but cannot be mixed within a specific |
---|
| 949 | // declaration. |
---|
[c11e31c] | 950 | // |
---|
[b87a5ed] | 951 | // CFA C |
---|
| 952 | // [10] int x; int x[10]; // array of 10 integers |
---|
| 953 | // [10] * char y; char *y[10]; // array of 10 pointers to char |
---|
| 954 | |
---|
| 955 | new_declaration: // CFA |
---|
[4d51835] | 956 | new_variable_declaration pop ';' |
---|
| 957 | | new_typedef_declaration pop ';' |
---|
| 958 | | new_function_declaration pop ';' |
---|
| 959 | | type_declaring_list pop ';' |
---|
| 960 | | context_specifier pop ';' |
---|
| 961 | ; |
---|
[b87a5ed] | 962 | |
---|
| 963 | new_variable_declaration: // CFA |
---|
[4d51835] | 964 | new_variable_specifier initializer_opt |
---|
| 965 | { |
---|
| 966 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 967 | $$ = $1; |
---|
| 968 | } |
---|
| 969 | | declaration_qualifier_list new_variable_specifier initializer_opt |
---|
| 970 | // declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to |
---|
| 971 | // preclude them as a type_qualifier cannot appear in that context. |
---|
| 972 | { |
---|
| 973 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 974 | $$ = $2->addQualifiers( $1 ); |
---|
| 975 | } |
---|
| 976 | | new_variable_declaration pop ',' push identifier_or_typedef_name initializer_opt |
---|
| 977 | { |
---|
| 978 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID ); |
---|
| 979 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 980 | } |
---|
| 981 | ; |
---|
[b87a5ed] | 982 | |
---|
| 983 | new_variable_specifier: // CFA |
---|
[4d51835] | 984 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or |
---|
| 985 | // explicit static storage-class |
---|
| 986 | new_abstract_declarator_no_tuple identifier_or_typedef_name asm_name_opt |
---|
| 987 | { |
---|
| 988 | typedefTable.setNextIdentifier( *$2 ); |
---|
| 989 | $$ = $1->addName( $2 ); |
---|
| 990 | } |
---|
| 991 | | new_abstract_tuple identifier_or_typedef_name asm_name_opt |
---|
| 992 | { |
---|
| 993 | typedefTable.setNextIdentifier( *$2 ); |
---|
| 994 | $$ = $1->addName( $2 ); |
---|
| 995 | } |
---|
| 996 | | type_qualifier_list new_abstract_tuple identifier_or_typedef_name asm_name_opt |
---|
| 997 | { |
---|
| 998 | typedefTable.setNextIdentifier( *$3 ); |
---|
| 999 | $$ = $2->addQualifiers( $1 )->addName( $3 ); |
---|
| 1000 | } |
---|
| 1001 | ; |
---|
[b87a5ed] | 1002 | |
---|
| 1003 | new_function_declaration: // CFA |
---|
[4d51835] | 1004 | new_function_specifier |
---|
| 1005 | { |
---|
| 1006 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1007 | $$ = $1; |
---|
| 1008 | } |
---|
| 1009 | | type_qualifier_list new_function_specifier |
---|
| 1010 | { |
---|
| 1011 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1012 | $$ = $2->addQualifiers( $1 ); |
---|
| 1013 | } |
---|
| 1014 | | declaration_qualifier_list new_function_specifier |
---|
| 1015 | { |
---|
| 1016 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1017 | $$ = $2->addQualifiers( $1 ); |
---|
| 1018 | } |
---|
| 1019 | | declaration_qualifier_list type_qualifier_list new_function_specifier |
---|
| 1020 | { |
---|
| 1021 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1022 | $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); |
---|
| 1023 | } |
---|
| 1024 | | new_function_declaration pop ',' push identifier_or_typedef_name |
---|
| 1025 | { |
---|
| 1026 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID ); |
---|
| 1027 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1028 | } |
---|
| 1029 | ; |
---|
[b87a5ed] | 1030 | |
---|
| 1031 | new_function_specifier: // CFA |
---|
[4d51835] | 1032 | '[' push pop ']' identifier '(' push new_parameter_type_list_opt pop ')' |
---|
| 1033 | { |
---|
| 1034 | typedefTable.setNextIdentifier( *($5) ); |
---|
| 1035 | $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1036 | } |
---|
| 1037 | | '[' push pop ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')' |
---|
| 1038 | { |
---|
| 1039 | typedefTable.setNextIdentifier( *($5) ); |
---|
| 1040 | $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1041 | } |
---|
| 1042 | // identifier_or_typedef_name must be broken apart because of the sequence: |
---|
| 1043 | // |
---|
| 1044 | // '[' ']' identifier_or_typedef_name '(' new_parameter_type_list_opt ')' |
---|
| 1045 | // '[' ']' type_specifier |
---|
| 1046 | // |
---|
| 1047 | // type_specifier can resolve to just TYPEDEFname (e.g. typedef int T; int f( T );). Therefore this |
---|
| 1048 | // must be flattened to allow lookahead to the '(' without having to reduce |
---|
| 1049 | // identifier_or_typedef_name. |
---|
| 1050 | | new_abstract_tuple identifier_or_typedef_name '(' push new_parameter_type_list_opt pop ')' |
---|
| 1051 | // To obtain LR(1), this rule must be factored out from function return type (see |
---|
| 1052 | // new_abstract_declarator). |
---|
| 1053 | { |
---|
| 1054 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true ); |
---|
| 1055 | } |
---|
| 1056 | | new_function_return identifier_or_typedef_name '(' push new_parameter_type_list_opt pop ')' |
---|
| 1057 | { |
---|
| 1058 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true ); |
---|
| 1059 | } |
---|
| 1060 | ; |
---|
[b87a5ed] | 1061 | |
---|
| 1062 | new_function_return: // CFA |
---|
[4d51835] | 1063 | '[' push new_parameter_list pop ']' |
---|
| 1064 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
| 1065 | | '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']' |
---|
| 1066 | // To obtain LR(1), the last new_abstract_parameter_list is added into this flattened rule to |
---|
| 1067 | // lookahead to the ']'. |
---|
| 1068 | { $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); } |
---|
| 1069 | ; |
---|
[b87a5ed] | 1070 | |
---|
| 1071 | new_typedef_declaration: // CFA |
---|
[4d51835] | 1072 | TYPEDEF new_variable_specifier |
---|
| 1073 | { |
---|
| 1074 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1075 | $$ = $2->addTypedef(); |
---|
| 1076 | } |
---|
| 1077 | | TYPEDEF new_function_specifier |
---|
| 1078 | { |
---|
| 1079 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1080 | $$ = $2->addTypedef(); |
---|
| 1081 | } |
---|
| 1082 | | new_typedef_declaration pop ',' push no_attr_identifier |
---|
| 1083 | { |
---|
| 1084 | typedefTable.addToEnclosingScope( *$5, TypedefTable::TD); |
---|
| 1085 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1086 | } |
---|
| 1087 | ; |
---|
[b87a5ed] | 1088 | |
---|
| 1089 | // Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is |
---|
| 1090 | // factored out as a separate form of declaration, which syntactically precludes storage-class specifiers and |
---|
| 1091 | // initialization. |
---|
[51b7345] | 1092 | |
---|
| 1093 | typedef_declaration: |
---|
[4d51835] | 1094 | TYPEDEF type_specifier declarator |
---|
| 1095 | { |
---|
| 1096 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1097 | $$ = $3->addType( $2 )->addTypedef(); |
---|
| 1098 | } |
---|
| 1099 | | typedef_declaration pop ',' push declarator |
---|
| 1100 | { |
---|
| 1101 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1102 | $$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() ); |
---|
| 1103 | } |
---|
| 1104 | | type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2) |
---|
| 1105 | { |
---|
| 1106 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1107 | $$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef(); |
---|
| 1108 | } |
---|
| 1109 | | type_specifier TYPEDEF declarator |
---|
| 1110 | { |
---|
| 1111 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1112 | $$ = $3->addType( $1 )->addTypedef(); |
---|
| 1113 | } |
---|
| 1114 | | type_specifier TYPEDEF type_qualifier_list declarator |
---|
| 1115 | { |
---|
| 1116 | typedefTable.addToEnclosingScope( TypedefTable::TD); |
---|
| 1117 | $$ = $4->addQualifiers($1)->addTypedef()->addType($1); |
---|
| 1118 | } |
---|
| 1119 | ; |
---|
[b87a5ed] | 1120 | |
---|
| 1121 | typedef_expression: // GCC, naming expression type |
---|
[4d51835] | 1122 | TYPEDEF no_attr_identifier '=' assignment_expression |
---|
| 1123 | { |
---|
| 1124 | typedefTable.addToEnclosingScope(*($2), TypedefTable::TD); |
---|
| 1125 | $$ = DeclarationNode::newName( 0 ); // XXX |
---|
| 1126 | } |
---|
| 1127 | | typedef_expression pop ',' push no_attr_identifier '=' assignment_expression |
---|
| 1128 | { |
---|
| 1129 | typedefTable.addToEnclosingScope(*($5), TypedefTable::TD); |
---|
| 1130 | $$ = DeclarationNode::newName( 0 ); // XXX |
---|
| 1131 | } |
---|
| 1132 | ; |
---|
[51b7345] | 1133 | |
---|
| 1134 | old_declaration: |
---|
[4d51835] | 1135 | declaring_list pop ';' |
---|
| 1136 | | typedef_declaration pop ';' |
---|
| 1137 | | typedef_expression pop ';' // GCC, naming expression type |
---|
| 1138 | | sue_declaration_specifier pop ';' |
---|
| 1139 | ; |
---|
[51b7345] | 1140 | |
---|
| 1141 | declaring_list: |
---|
[4d51835] | 1142 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or |
---|
| 1143 | // explicit static storage-class |
---|
| 1144 | declaration_specifier declarator asm_name_opt initializer_opt |
---|
| 1145 | { |
---|
| 1146 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1147 | $$ = ($2->addType( $1 ))->addInitializer($4); |
---|
| 1148 | } |
---|
| 1149 | | declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt |
---|
| 1150 | { |
---|
| 1151 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1152 | $$ = $1->appendList( $1->cloneBaseType( $4->addInitializer($6) ) ); |
---|
| 1153 | } |
---|
| 1154 | ; |
---|
[b87a5ed] | 1155 | |
---|
| 1156 | declaration_specifier: // type specifier + storage class |
---|
[4d51835] | 1157 | basic_declaration_specifier |
---|
| 1158 | | sue_declaration_specifier |
---|
| 1159 | | typedef_declaration_specifier |
---|
| 1160 | | typegen_declaration_specifier |
---|
| 1161 | ; |
---|
[b87a5ed] | 1162 | |
---|
| 1163 | type_specifier: // declaration specifier - storage class |
---|
[4d51835] | 1164 | basic_type_specifier |
---|
| 1165 | | sue_type_specifier |
---|
| 1166 | | typedef_type_specifier |
---|
| 1167 | | typegen_type_specifier |
---|
| 1168 | ; |
---|
[b87a5ed] | 1169 | |
---|
| 1170 | type_qualifier_list_opt: // GCC, used in asm_statement |
---|
[4d51835] | 1171 | // empty |
---|
| 1172 | { $$ = 0; } |
---|
| 1173 | | type_qualifier_list |
---|
| 1174 | ; |
---|
[51b7345] | 1175 | |
---|
| 1176 | type_qualifier_list: |
---|
[4d51835] | 1177 | // A semantic check is necessary to ensure a type qualifier is appropriate for the kind of |
---|
| 1178 | // declaration. |
---|
| 1179 | // |
---|
| 1180 | // ISO/IEC 9899:1999 Section 6.7.3(4) : If the same qualifier appears more than once in the same |
---|
| 1181 | // specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as |
---|
| 1182 | // if it appeared only once. |
---|
| 1183 | type_qualifier |
---|
| 1184 | | type_qualifier_list type_qualifier |
---|
| 1185 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1186 | ; |
---|
[51b7345] | 1187 | |
---|
| 1188 | type_qualifier: |
---|
[4d51835] | 1189 | type_qualifier_name |
---|
| 1190 | | attribute |
---|
| 1191 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); } |
---|
| 1192 | ; |
---|
[51b7345] | 1193 | |
---|
| 1194 | type_qualifier_name: |
---|
[4d51835] | 1195 | CONST |
---|
| 1196 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); } |
---|
| 1197 | | RESTRICT |
---|
| 1198 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); } |
---|
| 1199 | | VOLATILE |
---|
| 1200 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); } |
---|
| 1201 | | LVALUE // CFA |
---|
| 1202 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); } |
---|
| 1203 | | ATOMIC |
---|
| 1204 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); } |
---|
| 1205 | | FORALL '(' |
---|
| 1206 | { |
---|
| 1207 | typedefTable.enterScope(); |
---|
| 1208 | } |
---|
| 1209 | type_parameter_list ')' // CFA |
---|
| 1210 | { |
---|
| 1211 | typedefTable.leaveScope(); |
---|
| 1212 | $$ = DeclarationNode::newForall( $4 ); |
---|
| 1213 | } |
---|
| 1214 | ; |
---|
[51b7345] | 1215 | |
---|
| 1216 | declaration_qualifier_list: |
---|
[4d51835] | 1217 | storage_class_list |
---|
| 1218 | | type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2) |
---|
| 1219 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1220 | | declaration_qualifier_list type_qualifier_list storage_class_list |
---|
| 1221 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1222 | ; |
---|
[51b7345] | 1223 | |
---|
| 1224 | storage_class_list: |
---|
[4d51835] | 1225 | // A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration |
---|
| 1226 | // and that only one of each is specified, except for inline, which can appear with the others. |
---|
| 1227 | // |
---|
| 1228 | // ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the |
---|
| 1229 | // declaration specifiers in a declaration. |
---|
| 1230 | storage_class |
---|
| 1231 | | storage_class_list storage_class |
---|
| 1232 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1233 | ; |
---|
[51b7345] | 1234 | |
---|
| 1235 | storage_class: |
---|
[4d51835] | 1236 | storage_class_name |
---|
| 1237 | ; |
---|
[51b7345] | 1238 | |
---|
| 1239 | storage_class_name: |
---|
[4d51835] | 1240 | EXTERN |
---|
| 1241 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); } |
---|
| 1242 | | STATIC |
---|
| 1243 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); } |
---|
| 1244 | | AUTO |
---|
| 1245 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); } |
---|
| 1246 | | REGISTER |
---|
| 1247 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); } |
---|
| 1248 | | INLINE // C99 |
---|
| 1249 | // INLINE is essentially a storage class specifier for functions, and hence, belongs here. |
---|
| 1250 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); } |
---|
| 1251 | | FORTRAN // C99 |
---|
| 1252 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); } |
---|
| 1253 | ; |
---|
[51b7345] | 1254 | |
---|
| 1255 | basic_type_name: |
---|
[4d51835] | 1256 | CHAR |
---|
| 1257 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); } |
---|
| 1258 | | DOUBLE |
---|
| 1259 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); } |
---|
| 1260 | | FLOAT |
---|
| 1261 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); } |
---|
| 1262 | | INT |
---|
| 1263 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); } |
---|
| 1264 | | LONG |
---|
| 1265 | { $$ = DeclarationNode::newModifier( DeclarationNode::Long ); } |
---|
| 1266 | | SHORT |
---|
| 1267 | { $$ = DeclarationNode::newModifier( DeclarationNode::Short ); } |
---|
| 1268 | | SIGNED |
---|
| 1269 | { $$ = DeclarationNode::newModifier( DeclarationNode::Signed ); } |
---|
| 1270 | | UNSIGNED |
---|
| 1271 | { $$ = DeclarationNode::newModifier( DeclarationNode::Unsigned ); } |
---|
| 1272 | | VOID |
---|
| 1273 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); } |
---|
| 1274 | | BOOL // C99 |
---|
| 1275 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); } |
---|
| 1276 | | COMPLEX // C99 |
---|
| 1277 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Complex ); } |
---|
| 1278 | | IMAGINARY // C99 |
---|
| 1279 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Imaginary ); } |
---|
| 1280 | ; |
---|
[51b7345] | 1281 | |
---|
| 1282 | basic_declaration_specifier: |
---|
[4d51835] | 1283 | // A semantic check is necessary for conflicting storage classes. |
---|
| 1284 | basic_type_specifier |
---|
| 1285 | | declaration_qualifier_list basic_type_specifier |
---|
| 1286 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1287 | | basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1288 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1289 | | basic_declaration_specifier storage_class type_qualifier_list |
---|
| 1290 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1291 | | basic_declaration_specifier storage_class basic_type_specifier |
---|
| 1292 | { $$ = $3->addQualifiers( $2 )->addType( $1 ); } |
---|
| 1293 | ; |
---|
[51b7345] | 1294 | |
---|
| 1295 | basic_type_specifier: |
---|
[4d51835] | 1296 | direct_type_name |
---|
| 1297 | | type_qualifier_list_opt indirect_type_name type_qualifier_list_opt |
---|
| 1298 | { $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); } |
---|
| 1299 | ; |
---|
[51b7345] | 1300 | |
---|
| 1301 | direct_type_name: |
---|
[4d51835] | 1302 | // A semantic check is necessary for conflicting type qualifiers. |
---|
| 1303 | basic_type_name |
---|
| 1304 | | type_qualifier_list basic_type_name |
---|
| 1305 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1306 | | direct_type_name type_qualifier |
---|
| 1307 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1308 | | direct_type_name basic_type_name |
---|
| 1309 | { $$ = $1->addType( $2 ); } |
---|
| 1310 | ; |
---|
[51b7345] | 1311 | |
---|
| 1312 | indirect_type_name: |
---|
[4d51835] | 1313 | TYPEOF '(' type_name ')' // GCC: typeof(x) y; |
---|
| 1314 | { $$ = $3; } |
---|
| 1315 | | TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y; |
---|
| 1316 | { $$ = DeclarationNode::newTypeof( $3 ); } |
---|
| 1317 | | ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y; |
---|
| 1318 | { $$ = DeclarationNode::newAttr( $1, $3 ); } |
---|
| 1319 | | ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y; |
---|
| 1320 | { $$ = DeclarationNode::newAttr( $1, $3 ); } |
---|
| 1321 | ; |
---|
[51b7345] | 1322 | |
---|
| 1323 | sue_declaration_specifier: |
---|
[4d51835] | 1324 | sue_type_specifier |
---|
| 1325 | | declaration_qualifier_list sue_type_specifier |
---|
| 1326 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1327 | | sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1328 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1329 | | sue_declaration_specifier storage_class type_qualifier_list |
---|
| 1330 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1331 | ; |
---|
[51b7345] | 1332 | |
---|
| 1333 | sue_type_specifier: |
---|
[4d51835] | 1334 | elaborated_type_name // struct, union, enum |
---|
| 1335 | | type_qualifier_list elaborated_type_name |
---|
| 1336 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1337 | | sue_type_specifier type_qualifier |
---|
| 1338 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1339 | ; |
---|
[51b7345] | 1340 | |
---|
| 1341 | typedef_declaration_specifier: |
---|
[4d51835] | 1342 | typedef_type_specifier |
---|
| 1343 | | declaration_qualifier_list typedef_type_specifier |
---|
| 1344 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1345 | | typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1346 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1347 | | typedef_declaration_specifier storage_class type_qualifier_list |
---|
| 1348 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1349 | ; |
---|
[b87a5ed] | 1350 | |
---|
| 1351 | typedef_type_specifier: // typedef types |
---|
[4d51835] | 1352 | TYPEDEFname |
---|
| 1353 | { $$ = DeclarationNode::newFromTypedef( $1 ); } |
---|
| 1354 | | type_qualifier_list TYPEDEFname |
---|
| 1355 | { $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); } |
---|
| 1356 | | typedef_type_specifier type_qualifier |
---|
| 1357 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1358 | ; |
---|
[51b7345] | 1359 | |
---|
| 1360 | elaborated_type_name: |
---|
[4d51835] | 1361 | aggregate_name |
---|
| 1362 | | enum_name |
---|
| 1363 | ; |
---|
[51b7345] | 1364 | |
---|
| 1365 | aggregate_name: |
---|
[4d51835] | 1366 | aggregate_key '{' field_declaration_list '}' |
---|
| 1367 | { $$ = DeclarationNode::newAggregate( $1, 0, 0, 0, $3 ); } |
---|
| 1368 | | aggregate_key no_attr_identifier_or_typedef_name |
---|
| 1369 | { $$ = DeclarationNode::newAggregate( $1, $2, 0, 0, 0 ); } |
---|
| 1370 | | aggregate_key no_attr_identifier_or_typedef_name '{' field_declaration_list '}' |
---|
| 1371 | { $$ = DeclarationNode::newAggregate( $1, $2, 0, 0, $4 ); } |
---|
| 1372 | | aggregate_key '(' push type_parameter_list pop ')' '{' field_declaration_list '}' // CFA |
---|
| 1373 | { $$ = DeclarationNode::newAggregate( $1, 0, $4, 0, $8 ); } |
---|
| 1374 | | aggregate_key '(' push type_parameter_list pop ')' no_attr_identifier_or_typedef_name // CFA |
---|
| 1375 | { $$ = DeclarationNode::newAggregate( $1, $7, $4, 0, 0 ); } |
---|
| 1376 | | aggregate_key '(' push type_parameter_list pop ')' no_attr_identifier_or_typedef_name '{' field_declaration_list '}' // CFA |
---|
| 1377 | { $$ = DeclarationNode::newAggregate( $1, $7, $4, 0, $9 ); } |
---|
| 1378 | | aggregate_key '(' push type_parameter_list pop ')' '(' type_name_list ')' '{' field_declaration_list '}' // CFA |
---|
| 1379 | { $$ = DeclarationNode::newAggregate( $1, 0, $4, $8, $11 ); } |
---|
| 1380 | | aggregate_key '(' push type_name_list pop ')' no_attr_identifier_or_typedef_name // CFA |
---|
| 1381 | // push and pop are only to prevent S/R conflicts |
---|
| 1382 | { $$ = DeclarationNode::newAggregate( $1, $7, 0, $4, 0 ); } |
---|
| 1383 | | aggregate_key '(' push type_parameter_list pop ')' '(' type_name_list ')' no_attr_identifier_or_typedef_name '{' field_declaration_list '}' // CFA |
---|
| 1384 | { $$ = DeclarationNode::newAggregate( $1, $10, $4, $8, $12 ); } |
---|
| 1385 | ; |
---|
[51b7345] | 1386 | |
---|
| 1387 | aggregate_key: |
---|
[4d51835] | 1388 | STRUCT attribute_list_opt |
---|
| 1389 | { $$ = DeclarationNode::Struct; } |
---|
| 1390 | | UNION attribute_list_opt |
---|
| 1391 | { $$ = DeclarationNode::Union; } |
---|
| 1392 | ; |
---|
[51b7345] | 1393 | |
---|
| 1394 | field_declaration_list: |
---|
[4d51835] | 1395 | field_declaration |
---|
| 1396 | { $$ = $1; } |
---|
| 1397 | | field_declaration_list field_declaration |
---|
| 1398 | { $$ = $1->appendList( $2 ); } |
---|
| 1399 | ; |
---|
[51b7345] | 1400 | |
---|
| 1401 | field_declaration: |
---|
[4d51835] | 1402 | new_field_declaring_list ';' // CFA, new style field declaration |
---|
| 1403 | | EXTENSION new_field_declaring_list ';' // GCC |
---|
| 1404 | { $$ = $2; } |
---|
| 1405 | | field_declaring_list ';' |
---|
| 1406 | | EXTENSION field_declaring_list ';' // GCC |
---|
| 1407 | { $$ = $2; } |
---|
| 1408 | ; |
---|
[b87a5ed] | 1409 | |
---|
| 1410 | new_field_declaring_list: // CFA, new style field declaration |
---|
[4d51835] | 1411 | new_abstract_declarator_tuple // CFA, no field name |
---|
| 1412 | | new_abstract_declarator_tuple no_attr_identifier_or_typedef_name |
---|
| 1413 | { $$ = $1->addName( $2 ); } |
---|
| 1414 | | new_field_declaring_list ',' no_attr_identifier_or_typedef_name |
---|
| 1415 | { $$ = $1->appendList( $1->cloneType( $3 ) ); } |
---|
| 1416 | | new_field_declaring_list ',' // CFA, no field name |
---|
| 1417 | { $$ = $1->appendList( $1->cloneType( 0 ) ); } |
---|
| 1418 | ; |
---|
[51b7345] | 1419 | |
---|
| 1420 | field_declaring_list: |
---|
[4d51835] | 1421 | type_specifier field_declarator |
---|
| 1422 | { $$ = $2->addType( $1 ); } |
---|
| 1423 | | field_declaring_list ',' attribute_list_opt field_declarator |
---|
| 1424 | { $$ = $1->appendList( $1->cloneBaseType( $4 ) ); } |
---|
| 1425 | ; |
---|
[51b7345] | 1426 | |
---|
| 1427 | field_declarator: |
---|
[4d51835] | 1428 | // empty |
---|
| 1429 | { $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name |
---|
| 1430 | | bit_subrange_size // no field name |
---|
| 1431 | { $$ = DeclarationNode::newBitfield( $1 ); } |
---|
| 1432 | | variable_declarator bit_subrange_size_opt |
---|
| 1433 | // A semantic check is required to ensure bit_subrange only appears on base type int. |
---|
| 1434 | { $$ = $1->addBitfield( $2 ); } |
---|
| 1435 | | typedef_redeclarator bit_subrange_size_opt |
---|
| 1436 | // A semantic check is required to ensure bit_subrange only appears on base type int. |
---|
| 1437 | { $$ = $1->addBitfield( $2 ); } |
---|
| 1438 | | variable_abstract_declarator // CFA, no field name |
---|
| 1439 | ; |
---|
[51b7345] | 1440 | |
---|
| 1441 | bit_subrange_size_opt: |
---|
[4d51835] | 1442 | // empty |
---|
| 1443 | { $$ = 0; } |
---|
| 1444 | | bit_subrange_size |
---|
| 1445 | { $$ = $1; } |
---|
| 1446 | ; |
---|
[51b7345] | 1447 | |
---|
| 1448 | bit_subrange_size: |
---|
[4d51835] | 1449 | ':' constant_expression |
---|
| 1450 | { $$ = $2; } |
---|
| 1451 | ; |
---|
[51b7345] | 1452 | |
---|
| 1453 | enum_key: |
---|
[4d51835] | 1454 | ENUM attribute_list_opt |
---|
| 1455 | ; |
---|
[51b7345] | 1456 | |
---|
| 1457 | enum_name: |
---|
[4d51835] | 1458 | enum_key '{' enumerator_list comma_opt '}' |
---|
| 1459 | { $$ = DeclarationNode::newEnum( 0, $3 ); } |
---|
| 1460 | | enum_key no_attr_identifier_or_typedef_name '{' enumerator_list comma_opt '}' |
---|
| 1461 | { $$ = DeclarationNode::newEnum( $2, $4 ); } |
---|
| 1462 | | enum_key no_attr_identifier_or_typedef_name |
---|
| 1463 | { $$ = DeclarationNode::newEnum( $2, 0 ); } |
---|
| 1464 | ; |
---|
[51b7345] | 1465 | |
---|
| 1466 | enumerator_list: |
---|
[4d51835] | 1467 | no_attr_identifier_or_typedef_name enumerator_value_opt |
---|
| 1468 | { $$ = DeclarationNode::newEnumConstant( $1, $2 ); } |
---|
| 1469 | | enumerator_list ',' no_attr_identifier_or_typedef_name enumerator_value_opt |
---|
| 1470 | { $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); } |
---|
| 1471 | ; |
---|
[51b7345] | 1472 | |
---|
| 1473 | enumerator_value_opt: |
---|
[4d51835] | 1474 | // empty |
---|
| 1475 | { $$ = 0; } |
---|
| 1476 | | '=' constant_expression |
---|
| 1477 | { $$ = $2; } |
---|
| 1478 | ; |
---|
[51b7345] | 1479 | |
---|
[c11e31c] | 1480 | // Minimum of one parameter after which ellipsis is allowed only at the end. |
---|
[51b7345] | 1481 | |
---|
[b87a5ed] | 1482 | new_parameter_type_list_opt: // CFA |
---|
[4d51835] | 1483 | // empty |
---|
| 1484 | { $$ = 0; } |
---|
| 1485 | | new_parameter_type_list |
---|
| 1486 | ; |
---|
[b87a5ed] | 1487 | |
---|
| 1488 | new_parameter_type_list: // CFA, abstract + real |
---|
[4d51835] | 1489 | new_abstract_parameter_list |
---|
| 1490 | | new_parameter_list |
---|
| 1491 | | new_parameter_list pop ',' push new_abstract_parameter_list |
---|
| 1492 | { $$ = $1->appendList( $5 ); } |
---|
| 1493 | | new_abstract_parameter_list pop ',' push ELLIPSIS |
---|
| 1494 | { $$ = $1->addVarArgs(); } |
---|
| 1495 | | new_parameter_list pop ',' push ELLIPSIS |
---|
| 1496 | { $$ = $1->addVarArgs(); } |
---|
| 1497 | ; |
---|
[b87a5ed] | 1498 | |
---|
| 1499 | new_parameter_list: // CFA |
---|
[4d51835] | 1500 | // To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last |
---|
| 1501 | // new_abstract_parameter_list is factored out from new_parameter_list, flattening the rules to get |
---|
| 1502 | // lookahead to the ']'. |
---|
| 1503 | new_parameter_declaration |
---|
| 1504 | | new_abstract_parameter_list pop ',' push new_parameter_declaration |
---|
| 1505 | { $$ = $1->appendList( $5 ); } |
---|
| 1506 | | new_parameter_list pop ',' push new_parameter_declaration |
---|
| 1507 | { $$ = $1->appendList( $5 ); } |
---|
| 1508 | | new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration |
---|
| 1509 | { $$ = $1->appendList( $5 )->appendList( $9 ); } |
---|
| 1510 | ; |
---|
[b87a5ed] | 1511 | |
---|
| 1512 | new_abstract_parameter_list: // CFA, new & old style abstract |
---|
[4d51835] | 1513 | new_abstract_parameter_declaration |
---|
| 1514 | | new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration |
---|
| 1515 | { $$ = $1->appendList( $5 ); } |
---|
| 1516 | ; |
---|
[51b7345] | 1517 | |
---|
| 1518 | parameter_type_list_opt: |
---|
[4d51835] | 1519 | // empty |
---|
| 1520 | { $$ = 0; } |
---|
| 1521 | | parameter_type_list |
---|
| 1522 | ; |
---|
[51b7345] | 1523 | |
---|
| 1524 | parameter_type_list: |
---|
[4d51835] | 1525 | parameter_list |
---|
| 1526 | | parameter_list pop ',' push ELLIPSIS |
---|
| 1527 | { $$ = $1->addVarArgs(); } |
---|
| 1528 | ; |
---|
[b87a5ed] | 1529 | |
---|
| 1530 | parameter_list: // abstract + real |
---|
[4d51835] | 1531 | abstract_parameter_declaration |
---|
| 1532 | | parameter_declaration |
---|
| 1533 | | parameter_list pop ',' push abstract_parameter_declaration |
---|
| 1534 | { $$ = $1->appendList( $5 ); } |
---|
| 1535 | | parameter_list pop ',' push parameter_declaration |
---|
| 1536 | { $$ = $1->appendList( $5 ); } |
---|
| 1537 | ; |
---|
[51b7345] | 1538 | |
---|
[c11e31c] | 1539 | // Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different |
---|
| 1540 | // semantics for typedef name by using typedef_parameter_redeclarator instead of typedef_redeclarator, and |
---|
| 1541 | // function prototypes. |
---|
[51b7345] | 1542 | |
---|
[b87a5ed] | 1543 | new_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 1544 | parameter_declaration |
---|
| 1545 | | new_identifier_parameter_declarator_no_tuple identifier_or_typedef_name assignment_opt |
---|
| 1546 | { $$ = $1->addName( $2 ); } |
---|
| 1547 | | new_abstract_tuple identifier_or_typedef_name assignment_opt |
---|
| 1548 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator). |
---|
| 1549 | { $$ = $1->addName( $2 ); } |
---|
| 1550 | | type_qualifier_list new_abstract_tuple identifier_or_typedef_name assignment_opt |
---|
| 1551 | { $$ = $2->addName( $3 )->addQualifiers( $1 ); } |
---|
| 1552 | | new_function_specifier |
---|
| 1553 | ; |
---|
[b87a5ed] | 1554 | |
---|
| 1555 | new_abstract_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 1556 | abstract_parameter_declaration |
---|
| 1557 | | new_identifier_parameter_declarator_no_tuple |
---|
| 1558 | | new_abstract_tuple |
---|
| 1559 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator). |
---|
| 1560 | | type_qualifier_list new_abstract_tuple |
---|
| 1561 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1562 | | new_abstract_function |
---|
| 1563 | ; |
---|
[51b7345] | 1564 | |
---|
| 1565 | parameter_declaration: |
---|
[4d51835] | 1566 | declaration_specifier identifier_parameter_declarator assignment_opt |
---|
| 1567 | { |
---|
| 1568 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1569 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode($3) ); |
---|
| 1570 | } |
---|
| 1571 | | declaration_specifier typedef_parameter_redeclarator assignment_opt |
---|
| 1572 | { |
---|
| 1573 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1574 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode($3) ); |
---|
| 1575 | } |
---|
| 1576 | ; |
---|
[51b7345] | 1577 | |
---|
| 1578 | abstract_parameter_declaration: |
---|
[4d51835] | 1579 | declaration_specifier |
---|
| 1580 | | declaration_specifier abstract_parameter_declarator |
---|
| 1581 | { $$ = $2->addType( $1 ); } |
---|
| 1582 | ; |
---|
[51b7345] | 1583 | |
---|
[c11e31c] | 1584 | // ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a |
---|
| 1585 | // parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is |
---|
| 1586 | // based only on identifiers. The ANSI-style parameter-list can redefine a typedef name. |
---|
[51b7345] | 1587 | |
---|
[b87a5ed] | 1588 | identifier_list: // K&R-style parameter list => no types |
---|
[4d51835] | 1589 | no_attr_identifier |
---|
| 1590 | { $$ = DeclarationNode::newName( $1 ); } |
---|
| 1591 | | identifier_list ',' no_attr_identifier |
---|
| 1592 | { $$ = $1->appendList( DeclarationNode::newName( $3 ) ); } |
---|
| 1593 | ; |
---|
[51b7345] | 1594 | |
---|
| 1595 | identifier_or_typedef_name: |
---|
[4d51835] | 1596 | identifier |
---|
| 1597 | | TYPEDEFname |
---|
| 1598 | | TYPEGENname |
---|
| 1599 | ; |
---|
[51b7345] | 1600 | |
---|
| 1601 | no_01_identifier_or_typedef_name: |
---|
[4d51835] | 1602 | no_01_identifier |
---|
| 1603 | | TYPEDEFname |
---|
| 1604 | | TYPEGENname |
---|
| 1605 | ; |
---|
[51b7345] | 1606 | |
---|
| 1607 | no_attr_identifier_or_typedef_name: |
---|
[4d51835] | 1608 | no_attr_identifier |
---|
| 1609 | | TYPEDEFname |
---|
| 1610 | | TYPEGENname |
---|
| 1611 | ; |
---|
[b87a5ed] | 1612 | |
---|
| 1613 | type_name_no_function: // sizeof, alignof, cast (constructor) |
---|
[4d51835] | 1614 | new_abstract_declarator_tuple // CFA |
---|
| 1615 | | type_specifier |
---|
| 1616 | | type_specifier variable_abstract_declarator |
---|
| 1617 | { $$ = $2->addType( $1 ); } |
---|
| 1618 | ; |
---|
[b87a5ed] | 1619 | |
---|
| 1620 | type_name: // typeof, assertion |
---|
[4d51835] | 1621 | new_abstract_declarator_tuple // CFA |
---|
| 1622 | | new_abstract_function // CFA |
---|
| 1623 | | type_specifier |
---|
| 1624 | | type_specifier abstract_declarator |
---|
| 1625 | { $$ = $2->addType( $1 ); } |
---|
| 1626 | ; |
---|
[51b7345] | 1627 | |
---|
| 1628 | initializer_opt: |
---|
[4d51835] | 1629 | // empty |
---|
| 1630 | { $$ = 0; } |
---|
| 1631 | | '=' initializer { $$ = $2; } |
---|
| 1632 | ; |
---|
[51b7345] | 1633 | |
---|
| 1634 | initializer: |
---|
[4d51835] | 1635 | assignment_expression { $$ = new InitializerNode($1); } |
---|
| 1636 | | '{' initializer_list comma_opt '}' { $$ = new InitializerNode($2, true); } |
---|
| 1637 | ; |
---|
[51b7345] | 1638 | |
---|
| 1639 | initializer_list: |
---|
[4d51835] | 1640 | initializer |
---|
| 1641 | | designation initializer { $$ = $2->set_designators( $1 ); } |
---|
| 1642 | | initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_link($3) ); } |
---|
| 1643 | | initializer_list ',' designation initializer |
---|
| 1644 | { $$ = (InitializerNode *)( $1->set_link( $4->set_designators($3) ) ); } |
---|
| 1645 | ; |
---|
[b87a5ed] | 1646 | |
---|
| 1647 | // There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is |
---|
| 1648 | // use of '=' to separator the designator from the initializer value, as in: |
---|
[c11e31c] | 1649 | // |
---|
[b87a5ed] | 1650 | // int x[10] = { [1] = 3 }; |
---|
[c11e31c] | 1651 | // |
---|
| 1652 | // The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this |
---|
| 1653 | // case, CFA changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC |
---|
| 1654 | // does uses ":" for field selection. The optional use of the "=" in GCC, or in this case ":", cannot be |
---|
| 1655 | // supported either due to shift/reduce conflicts |
---|
[51b7345] | 1656 | |
---|
| 1657 | designation: |
---|
[4d51835] | 1658 | designator_list ':' // C99, CFA uses ":" instead of "=" |
---|
| 1659 | | no_attr_identifier_or_typedef_name ':' // GCC, field name |
---|
| 1660 | { $$ = new VarRefNode( $1 ); } |
---|
| 1661 | ; |
---|
[51b7345] | 1662 | |
---|
[b87a5ed] | 1663 | designator_list: // C99 |
---|
[4d51835] | 1664 | designator |
---|
| 1665 | | designator_list designator { $$ = (ExpressionNode *)($1->set_link( $2 )); } |
---|
| 1666 | ; |
---|
[51b7345] | 1667 | |
---|
| 1668 | designator: |
---|
[4d51835] | 1669 | '.' no_attr_identifier_or_typedef_name // C99, field name |
---|
| 1670 | { $$ = new VarRefNode( $2 ); } |
---|
| 1671 | | '[' push assignment_expression pop ']' // C99, single array element |
---|
| 1672 | // assignment_expression used instead of constant_expression because of shift/reduce conflicts with |
---|
| 1673 | // tuple. |
---|
| 1674 | { $$ = $3; } |
---|
| 1675 | | '[' push subrange pop ']' // CFA, multiple array elements |
---|
| 1676 | { $$ = $3; } |
---|
| 1677 | | '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements |
---|
| 1678 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Range), $3, $5); } |
---|
| 1679 | | '.' '[' push field_list pop ']' // CFA, tuple field selector |
---|
| 1680 | { $$ = $4; } |
---|
| 1681 | ; |
---|
[51b7345] | 1682 | |
---|
[c11e31c] | 1683 | // The CFA type system is based on parametric polymorphism, the ability to declare functions with type |
---|
| 1684 | // parameters, rather than an object-oriented type system. This required four groups of extensions: |
---|
| 1685 | // |
---|
| 1686 | // Overloading: function, data, and operator identifiers may be overloaded. |
---|
| 1687 | // |
---|
| 1688 | // Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used |
---|
| 1689 | // for object and incomplete types, and "ftype" is used for function types. Type declarations with |
---|
| 1690 | // initializers provide definitions of new types. Type declarations with storage class "extern" provide |
---|
| 1691 | // opaque types. |
---|
| 1692 | // |
---|
| 1693 | // Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at |
---|
| 1694 | // the call site. A polymorphic function is not a template; it is a function, with an address and a type. |
---|
| 1695 | // |
---|
| 1696 | // Specifications and Assertions: Specifications are collections of declarations parameterized by one or more |
---|
| 1697 | // types. They serve many of the purposes of abstract classes, and specification hierarchies resemble |
---|
| 1698 | // subclass hierarchies. Unlike classes, they can define relationships between types. Assertions declare |
---|
| 1699 | // that a type or types provide the operations declared by a specification. Assertions are normally used |
---|
| 1700 | // to declare requirements on type arguments of polymorphic functions. |
---|
| 1701 | |
---|
[b87a5ed] | 1702 | typegen_declaration_specifier: // CFA |
---|
[4d51835] | 1703 | typegen_type_specifier |
---|
| 1704 | | declaration_qualifier_list typegen_type_specifier |
---|
| 1705 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1706 | | typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1707 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1708 | | typegen_declaration_specifier storage_class type_qualifier_list |
---|
| 1709 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1710 | ; |
---|
[b87a5ed] | 1711 | |
---|
| 1712 | typegen_type_specifier: // CFA |
---|
[4d51835] | 1713 | TYPEGENname '(' type_name_list ')' |
---|
| 1714 | { $$ = DeclarationNode::newFromTypeGen( $1, $3 ); } |
---|
| 1715 | | type_qualifier_list TYPEGENname '(' type_name_list ')' |
---|
| 1716 | { $$ = DeclarationNode::newFromTypeGen( $2, $4 )->addQualifiers( $1 ); } |
---|
| 1717 | | typegen_type_specifier type_qualifier |
---|
| 1718 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1719 | ; |
---|
[b87a5ed] | 1720 | |
---|
| 1721 | type_parameter_list: // CFA |
---|
[4d51835] | 1722 | type_parameter assignment_opt |
---|
| 1723 | | type_parameter_list ',' type_parameter assignment_opt |
---|
| 1724 | { $$ = $1->appendList( $3 ); } |
---|
| 1725 | ; |
---|
[b87a5ed] | 1726 | |
---|
| 1727 | type_parameter: // CFA |
---|
[4d51835] | 1728 | type_class no_attr_identifier_or_typedef_name |
---|
| 1729 | { typedefTable.addToEnclosingScope(*($2), TypedefTable::TD); } |
---|
| 1730 | assertion_list_opt |
---|
| 1731 | { $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); } |
---|
| 1732 | | type_specifier identifier_parameter_declarator |
---|
| 1733 | ; |
---|
[b87a5ed] | 1734 | |
---|
| 1735 | type_class: // CFA |
---|
[4d51835] | 1736 | TYPE |
---|
| 1737 | { $$ = DeclarationNode::Type; } |
---|
| 1738 | | DTYPE |
---|
| 1739 | { $$ = DeclarationNode::Ftype; } |
---|
| 1740 | | FTYPE |
---|
| 1741 | { $$ = DeclarationNode::Dtype; } |
---|
| 1742 | ; |
---|
[b87a5ed] | 1743 | |
---|
| 1744 | assertion_list_opt: // CFA |
---|
[4d51835] | 1745 | // empty |
---|
| 1746 | { $$ = 0; } |
---|
| 1747 | | assertion_list_opt assertion |
---|
| 1748 | { $$ = $1 == 0 ? $2 : $1->appendList( $2 ); } |
---|
| 1749 | ; |
---|
[b87a5ed] | 1750 | |
---|
| 1751 | assertion: // CFA |
---|
[4d51835] | 1752 | '|' no_attr_identifier_or_typedef_name '(' type_name_list ')' |
---|
| 1753 | { |
---|
| 1754 | typedefTable.openContext( *($2) ); |
---|
| 1755 | $$ = DeclarationNode::newContextUse( $2, $4 ); |
---|
| 1756 | } |
---|
| 1757 | | '|' '{' push context_declaration_list '}' |
---|
| 1758 | { $$ = $4; } |
---|
| 1759 | | '|' '(' push type_parameter_list pop ')' '{' push context_declaration_list '}' '(' type_name_list ')' |
---|
| 1760 | { $$ = 0; } |
---|
| 1761 | ; |
---|
[b87a5ed] | 1762 | |
---|
| 1763 | type_name_list: // CFA |
---|
[4d51835] | 1764 | type_name |
---|
| 1765 | { $$ = new TypeValueNode( $1 ); } |
---|
| 1766 | | assignment_expression |
---|
| 1767 | | type_name_list ',' type_name |
---|
| 1768 | { $$ = (ExpressionNode *)($1->set_link(new TypeValueNode( $3 ))); } |
---|
| 1769 | | type_name_list ',' assignment_expression |
---|
| 1770 | { $$ = (ExpressionNode *)($1->set_link($3)); } |
---|
| 1771 | ; |
---|
[b87a5ed] | 1772 | |
---|
| 1773 | type_declaring_list: // CFA |
---|
[4d51835] | 1774 | TYPE type_declarator |
---|
| 1775 | { $$ = $2; } |
---|
| 1776 | | storage_class_list TYPE type_declarator |
---|
| 1777 | { $$ = $3->addQualifiers( $1 ); } |
---|
| 1778 | | type_declaring_list ',' type_declarator |
---|
| 1779 | { $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); } |
---|
| 1780 | ; |
---|
[b87a5ed] | 1781 | |
---|
| 1782 | type_declarator: // CFA |
---|
[4d51835] | 1783 | type_declarator_name assertion_list_opt |
---|
| 1784 | { $$ = $1->addAssertions( $2 ); } |
---|
| 1785 | | type_declarator_name assertion_list_opt '=' type_name |
---|
| 1786 | { $$ = $1->addAssertions( $2 )->addType( $4 ); } |
---|
| 1787 | ; |
---|
[b87a5ed] | 1788 | |
---|
| 1789 | type_declarator_name: // CFA |
---|
[4d51835] | 1790 | no_attr_identifier_or_typedef_name |
---|
| 1791 | { |
---|
| 1792 | typedefTable.addToEnclosingScope(*($1), TypedefTable::TD); |
---|
| 1793 | $$ = DeclarationNode::newTypeDecl( $1, 0 ); |
---|
| 1794 | } |
---|
| 1795 | | no_01_identifier_or_typedef_name '(' push type_parameter_list pop ')' |
---|
| 1796 | { |
---|
| 1797 | typedefTable.addToEnclosingScope(*($1), TypedefTable::TG); |
---|
| 1798 | $$ = DeclarationNode::newTypeDecl( $1, $4 ); |
---|
| 1799 | } |
---|
| 1800 | ; |
---|
[b87a5ed] | 1801 | |
---|
| 1802 | context_specifier: // CFA |
---|
[4d51835] | 1803 | CONTEXT no_attr_identifier_or_typedef_name '(' push type_parameter_list pop ')' '{' '}' |
---|
| 1804 | { |
---|
| 1805 | typedefTable.addToEnclosingScope(*($2), TypedefTable::ID ); |
---|
| 1806 | $$ = DeclarationNode::newContext( $2, $5, 0 ); |
---|
| 1807 | } |
---|
| 1808 | | CONTEXT no_attr_identifier_or_typedef_name '(' push type_parameter_list pop ')' '{' |
---|
| 1809 | { |
---|
| 1810 | typedefTable.enterContext( *($2) ); |
---|
| 1811 | typedefTable.enterScope(); |
---|
| 1812 | } |
---|
| 1813 | context_declaration_list '}' |
---|
| 1814 | { |
---|
| 1815 | typedefTable.leaveContext(); |
---|
| 1816 | typedefTable.addToEnclosingScope(*($2), TypedefTable::ID ); |
---|
| 1817 | $$ = DeclarationNode::newContext( $2, $5, $10 ); |
---|
| 1818 | } |
---|
| 1819 | ; |
---|
[b87a5ed] | 1820 | |
---|
| 1821 | context_declaration_list: // CFA |
---|
[4d51835] | 1822 | context_declaration |
---|
| 1823 | | context_declaration_list push context_declaration |
---|
| 1824 | { $$ = $1->appendList( $3 ); } |
---|
| 1825 | ; |
---|
[b87a5ed] | 1826 | |
---|
| 1827 | context_declaration: // CFA |
---|
[4d51835] | 1828 | new_context_declaring_list pop ';' |
---|
| 1829 | | context_declaring_list pop ';' |
---|
| 1830 | ; |
---|
[b87a5ed] | 1831 | |
---|
| 1832 | new_context_declaring_list: // CFA |
---|
[4d51835] | 1833 | new_variable_specifier |
---|
| 1834 | { |
---|
| 1835 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1836 | $$ = $1; |
---|
| 1837 | } |
---|
| 1838 | | new_function_specifier |
---|
| 1839 | { |
---|
| 1840 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1841 | $$ = $1; |
---|
| 1842 | } |
---|
| 1843 | | new_context_declaring_list pop ',' push identifier_or_typedef_name |
---|
| 1844 | { |
---|
| 1845 | typedefTable.addToEnclosingScope2( *($5), TypedefTable::ID ); |
---|
| 1846 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1847 | } |
---|
| 1848 | ; |
---|
[b87a5ed] | 1849 | |
---|
| 1850 | context_declaring_list: // CFA |
---|
[4d51835] | 1851 | type_specifier declarator |
---|
| 1852 | { |
---|
| 1853 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1854 | $$ = $2->addType( $1 ); |
---|
| 1855 | } |
---|
| 1856 | | context_declaring_list pop ',' push declarator |
---|
| 1857 | { |
---|
| 1858 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1859 | $$ = $1->appendList( $1->cloneBaseType( $5 ) ); |
---|
| 1860 | } |
---|
| 1861 | ; |
---|
[51b7345] | 1862 | |
---|
[c11e31c] | 1863 | //***************************** EXTERNAL DEFINITIONS ***************************** |
---|
[51b7345] | 1864 | |
---|
| 1865 | translation_unit: |
---|
[4d51835] | 1866 | // empty |
---|
| 1867 | {} // empty input file |
---|
| 1868 | | external_definition_list |
---|
| 1869 | { |
---|
| 1870 | if ( theTree ) { |
---|
| 1871 | theTree->appendList( $1 ); |
---|
| 1872 | } else { |
---|
| 1873 | theTree = $1; |
---|
| 1874 | } |
---|
| 1875 | } |
---|
| 1876 | ; |
---|
[51b7345] | 1877 | |
---|
| 1878 | external_definition_list: |
---|
[4d51835] | 1879 | external_definition |
---|
| 1880 | | external_definition_list push external_definition |
---|
| 1881 | { $$ = ($1 != NULL ) ? $1->appendList( $3 ) : $3; } |
---|
| 1882 | ; |
---|
[51b7345] | 1883 | |
---|
| 1884 | external_definition_list_opt: |
---|
[4d51835] | 1885 | // empty |
---|
| 1886 | { $$ = 0; } |
---|
| 1887 | | external_definition_list |
---|
| 1888 | ; |
---|
[51b7345] | 1889 | |
---|
| 1890 | external_definition: |
---|
[4d51835] | 1891 | declaration |
---|
| 1892 | | external_function_definition |
---|
| 1893 | | asm_statement // GCC, global assembler statement |
---|
| 1894 | {} |
---|
| 1895 | | EXTERN STRINGliteral |
---|
| 1896 | { |
---|
| 1897 | linkageStack.push( linkage ); |
---|
| 1898 | linkage = LinkageSpec::fromString( *$2 ); |
---|
| 1899 | } |
---|
| 1900 | '{' external_definition_list_opt '}' // C++-style linkage specifier |
---|
| 1901 | { |
---|
| 1902 | linkage = linkageStack.top(); |
---|
| 1903 | linkageStack.pop(); |
---|
| 1904 | $$ = $5; |
---|
| 1905 | } |
---|
| 1906 | | EXTENSION external_definition |
---|
| 1907 | { $$ = $2; } |
---|
| 1908 | ; |
---|
| 1909 | |
---|
| 1910 | external_function_definition: |
---|
| 1911 | function_definition |
---|
| 1912 | |
---|
| 1913 | // These rules are a concession to the "implicit int" type_specifier because there is a significant |
---|
| 1914 | // amount of code with functions missing a type-specifier on the return type. Parsing is possible |
---|
| 1915 | // because function_definition does not appear in the context of an expression (nested functions would |
---|
| 1916 | // preclude this concession). A function prototype declaration must still have a type_specifier. |
---|
| 1917 | // OBSOLESCENT (see 1) |
---|
| 1918 | | function_declarator compound_statement |
---|
| 1919 | { |
---|
| 1920 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1921 | typedefTable.leaveScope(); |
---|
| 1922 | $$ = $1->addFunctionBody( $2 ); |
---|
| 1923 | } |
---|
| 1924 | | old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 1925 | { |
---|
| 1926 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1927 | typedefTable.leaveScope(); |
---|
| 1928 | $$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 ); |
---|
| 1929 | } |
---|
| 1930 | ; |
---|
[51b7345] | 1931 | |
---|
| 1932 | function_definition: |
---|
[4d51835] | 1933 | new_function_declaration compound_statement // CFA |
---|
| 1934 | { |
---|
| 1935 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1936 | typedefTable.leaveScope(); |
---|
| 1937 | $$ = $1->addFunctionBody( $2 ); |
---|
| 1938 | } |
---|
| 1939 | | declaration_specifier function_declarator compound_statement |
---|
| 1940 | { |
---|
| 1941 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1942 | typedefTable.leaveScope(); |
---|
| 1943 | $$ = $2->addFunctionBody( $3 )->addType( $1 ); |
---|
| 1944 | } |
---|
| 1945 | | type_qualifier_list function_declarator compound_statement |
---|
| 1946 | { |
---|
| 1947 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1948 | typedefTable.leaveScope(); |
---|
| 1949 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 ); |
---|
| 1950 | } |
---|
| 1951 | | declaration_qualifier_list function_declarator compound_statement |
---|
| 1952 | { |
---|
| 1953 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1954 | typedefTable.leaveScope(); |
---|
| 1955 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 ); |
---|
| 1956 | } |
---|
| 1957 | | declaration_qualifier_list type_qualifier_list function_declarator compound_statement |
---|
| 1958 | { |
---|
| 1959 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1960 | typedefTable.leaveScope(); |
---|
| 1961 | $$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 ); |
---|
| 1962 | } |
---|
| 1963 | |
---|
| 1964 | // Old-style K&R function definition, OBSOLESCENT (see 4) |
---|
| 1965 | | declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 1966 | { |
---|
| 1967 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1968 | typedefTable.leaveScope(); |
---|
| 1969 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 ); |
---|
| 1970 | } |
---|
| 1971 | | type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 1972 | { |
---|
| 1973 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1974 | typedefTable.leaveScope(); |
---|
| 1975 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 ); |
---|
| 1976 | } |
---|
| 1977 | |
---|
| 1978 | // Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4) |
---|
| 1979 | | declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 1980 | { |
---|
| 1981 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1982 | typedefTable.leaveScope(); |
---|
| 1983 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 ); |
---|
| 1984 | } |
---|
| 1985 | | declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 1986 | { |
---|
| 1987 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1988 | typedefTable.leaveScope(); |
---|
| 1989 | $$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 ); |
---|
| 1990 | } |
---|
| 1991 | ; |
---|
[51b7345] | 1992 | |
---|
| 1993 | declarator: |
---|
[4d51835] | 1994 | variable_declarator |
---|
| 1995 | | function_declarator |
---|
| 1996 | | typedef_redeclarator |
---|
| 1997 | ; |
---|
[51b7345] | 1998 | |
---|
| 1999 | subrange: |
---|
[4d51835] | 2000 | constant_expression '~' constant_expression // CFA, integer subrange |
---|
| 2001 | { $$ = new CompositeExprNode(new OperatorNode(OperatorNode::Range), $1, $3); } |
---|
| 2002 | ; |
---|
[b87a5ed] | 2003 | |
---|
| 2004 | asm_name_opt: // GCC |
---|
[4d51835] | 2005 | // empty |
---|
| 2006 | | ASM '(' string_literal_list ')' attribute_list_opt |
---|
| 2007 | ; |
---|
[b87a5ed] | 2008 | |
---|
| 2009 | attribute_list_opt: // GCC |
---|
[4d51835] | 2010 | // empty |
---|
| 2011 | | attribute_list |
---|
| 2012 | ; |
---|
[b87a5ed] | 2013 | |
---|
| 2014 | attribute_list: // GCC |
---|
[4d51835] | 2015 | attribute |
---|
| 2016 | | attribute_list attribute |
---|
| 2017 | ; |
---|
[b87a5ed] | 2018 | |
---|
| 2019 | attribute: // GCC |
---|
[4d51835] | 2020 | ATTRIBUTE '(' '(' attribute_parameter_list ')' ')' |
---|
| 2021 | ; |
---|
[b87a5ed] | 2022 | |
---|
| 2023 | attribute_parameter_list: // GCC |
---|
[4d51835] | 2024 | attrib |
---|
| 2025 | | attribute_parameter_list ',' attrib |
---|
| 2026 | ; |
---|
[b87a5ed] | 2027 | |
---|
| 2028 | attrib: // GCC |
---|
[4d51835] | 2029 | // empty |
---|
| 2030 | | any_word |
---|
| 2031 | | any_word '(' comma_expression_opt ')' |
---|
| 2032 | ; |
---|
[b87a5ed] | 2033 | |
---|
| 2034 | any_word: // GCC |
---|
[4d51835] | 2035 | identifier_or_typedef_name {} |
---|
| 2036 | | storage_class_name {} |
---|
| 2037 | | basic_type_name {} |
---|
| 2038 | | type_qualifier {} |
---|
| 2039 | ; |
---|
[51b7345] | 2040 | |
---|
[c11e31c] | 2041 | // ============================================================================ |
---|
| 2042 | // The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are |
---|
| 2043 | // necessary because the type of an identifier in wrapped around the identifier in the same form as its usage |
---|
| 2044 | // in an expression, as in: |
---|
| 2045 | // |
---|
[b87a5ed] | 2046 | // int (*f())[10] { ... }; |
---|
| 2047 | // ... (*f())[3] += 1; // definition mimics usage |
---|
[c11e31c] | 2048 | // |
---|
| 2049 | // Because these patterns are highly recursive, changes at a lower level in the recursion require copying some |
---|
| 2050 | // or all of the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a |
---|
| 2051 | // particular context. |
---|
| 2052 | // ============================================================================ |
---|
| 2053 | |
---|
| 2054 | // ---------------------------------------------------------------------------- |
---|
| 2055 | // The set of valid declarators before a compound statement for defining a function is less than the set of |
---|
| 2056 | // declarators to define a variable or function prototype, e.g.: |
---|
| 2057 | // |
---|
[b87a5ed] | 2058 | // valid declaration invalid definition |
---|
| 2059 | // ----------------- ------------------ |
---|
[4d51835] | 2060 | // int f; int f {} |
---|
| 2061 | // int *f; int *f {} |
---|
[b87a5ed] | 2062 | // int f[10]; int f[10] {} |
---|
[4d51835] | 2063 | // int (*f)(int); int (*f)(int) {} |
---|
[c11e31c] | 2064 | // |
---|
| 2065 | // To preclude this syntactic anomaly requires separating the grammar rules for variable and function |
---|
| 2066 | // declarators, hence variable_declarator and function_declarator. |
---|
| 2067 | // ---------------------------------------------------------------------------- |
---|
| 2068 | |
---|
| 2069 | // This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern |
---|
| 2070 | // precludes declaring an array of functions versus a pointer to an array of functions. |
---|
[51b7345] | 2071 | |
---|
| 2072 | variable_declarator: |
---|
[4d51835] | 2073 | paren_identifier attribute_list_opt |
---|
| 2074 | | variable_ptr |
---|
| 2075 | | variable_array attribute_list_opt |
---|
| 2076 | | variable_function attribute_list_opt |
---|
| 2077 | ; |
---|
[51b7345] | 2078 | |
---|
| 2079 | paren_identifier: |
---|
[4d51835] | 2080 | identifier |
---|
| 2081 | { |
---|
| 2082 | typedefTable.setNextIdentifier( *($1) ); |
---|
| 2083 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2084 | } |
---|
| 2085 | | '(' paren_identifier ')' // redundant parenthesis |
---|
| 2086 | { $$ = $2; } |
---|
| 2087 | ; |
---|
[51b7345] | 2088 | |
---|
| 2089 | variable_ptr: |
---|
[4d51835] | 2090 | '*' variable_declarator |
---|
| 2091 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2092 | | '*' type_qualifier_list variable_declarator |
---|
| 2093 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2094 | | '(' variable_ptr ')' |
---|
| 2095 | { $$ = $2; } |
---|
| 2096 | ; |
---|
[51b7345] | 2097 | |
---|
| 2098 | variable_array: |
---|
[4d51835] | 2099 | paren_identifier array_dimension |
---|
| 2100 | { $$ = $1->addArray( $2 ); } |
---|
| 2101 | | '(' variable_ptr ')' array_dimension |
---|
| 2102 | { $$ = $2->addArray( $4 ); } |
---|
| 2103 | | '(' variable_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2104 | { $$ = $2->addArray( $4 ); } |
---|
| 2105 | | '(' variable_array ')' // redundant parenthesis |
---|
| 2106 | { $$ = $2; } |
---|
| 2107 | ; |
---|
[51b7345] | 2108 | |
---|
| 2109 | variable_function: |
---|
[4d51835] | 2110 | '(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2111 | { $$ = $2->addParamList( $6 ); } |
---|
| 2112 | | '(' variable_function ')' // redundant parenthesis |
---|
| 2113 | { $$ = $2; } |
---|
| 2114 | ; |
---|
[51b7345] | 2115 | |
---|
[c11e31c] | 2116 | // This pattern parses a function declarator that is not redefining a typedef name. Because functions cannot |
---|
| 2117 | // be nested, there is no context where a function definition can redefine a typedef name. To allow nested |
---|
| 2118 | // functions requires further separation of variable and function declarators in typedef_redeclarator. The |
---|
| 2119 | // pattern precludes returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2120 | |
---|
| 2121 | function_declarator: |
---|
[4d51835] | 2122 | function_no_ptr attribute_list_opt |
---|
| 2123 | | function_ptr |
---|
| 2124 | | function_array attribute_list_opt |
---|
| 2125 | ; |
---|
[51b7345] | 2126 | |
---|
| 2127 | function_no_ptr: |
---|
[4d51835] | 2128 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2129 | { $$ = $1->addParamList( $4 ); } |
---|
| 2130 | | '(' function_ptr ')' '(' push parameter_type_list_opt pop ')' |
---|
| 2131 | { $$ = $2->addParamList( $6 ); } |
---|
| 2132 | | '(' function_no_ptr ')' // redundant parenthesis |
---|
| 2133 | { $$ = $2; } |
---|
| 2134 | ; |
---|
[51b7345] | 2135 | |
---|
| 2136 | function_ptr: |
---|
[4d51835] | 2137 | '*' function_declarator |
---|
| 2138 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2139 | | '*' type_qualifier_list function_declarator |
---|
| 2140 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2141 | | '(' function_ptr ')' |
---|
| 2142 | { $$ = $2; } |
---|
| 2143 | ; |
---|
[51b7345] | 2144 | |
---|
| 2145 | function_array: |
---|
[4d51835] | 2146 | '(' function_ptr ')' array_dimension |
---|
| 2147 | { $$ = $2->addArray( $4 ); } |
---|
| 2148 | | '(' function_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2149 | { $$ = $2->addArray( $4 ); } |
---|
| 2150 | | '(' function_array ')' // redundant parenthesis |
---|
| 2151 | { $$ = $2; } |
---|
| 2152 | ; |
---|
[51b7345] | 2153 | |
---|
[c11e31c] | 2154 | // This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a |
---|
| 2155 | // typedef name (see function_declarator for additional comments). The pattern precludes returning arrays and |
---|
| 2156 | // functions versus pointers to arrays and functions. |
---|
[51b7345] | 2157 | |
---|
| 2158 | old_function_declarator: |
---|
[4d51835] | 2159 | old_function_no_ptr |
---|
| 2160 | | old_function_ptr |
---|
| 2161 | | old_function_array |
---|
| 2162 | ; |
---|
[51b7345] | 2163 | |
---|
| 2164 | old_function_no_ptr: |
---|
[4d51835] | 2165 | paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter |
---|
| 2166 | { $$ = $1->addIdList( $3 ); } |
---|
| 2167 | | '(' old_function_ptr ')' '(' identifier_list ')' |
---|
| 2168 | { $$ = $2->addIdList( $5 ); } |
---|
| 2169 | | '(' old_function_no_ptr ')' // redundant parenthesis |
---|
| 2170 | { $$ = $2; } |
---|
| 2171 | ; |
---|
[51b7345] | 2172 | |
---|
| 2173 | old_function_ptr: |
---|
[4d51835] | 2174 | '*' old_function_declarator |
---|
| 2175 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2176 | | '*' type_qualifier_list old_function_declarator |
---|
| 2177 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2178 | | '(' old_function_ptr ')' |
---|
| 2179 | { $$ = $2; } |
---|
| 2180 | ; |
---|
[51b7345] | 2181 | |
---|
| 2182 | old_function_array: |
---|
[4d51835] | 2183 | '(' old_function_ptr ')' array_dimension |
---|
| 2184 | { $$ = $2->addArray( $4 ); } |
---|
| 2185 | | '(' old_function_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2186 | { $$ = $2->addArray( $4 ); } |
---|
| 2187 | | '(' old_function_array ')' // redundant parenthesis |
---|
| 2188 | { $$ = $2; } |
---|
| 2189 | ; |
---|
[51b7345] | 2190 | |
---|
[c11e31c] | 2191 | // This pattern parses a declaration for a variable or function prototype that redefines a typedef name, e.g.: |
---|
| 2192 | // |
---|
[b87a5ed] | 2193 | // typedef int foo; |
---|
| 2194 | // { |
---|
| 2195 | // int foo; // redefine typedef name in new scope |
---|
| 2196 | // } |
---|
[c11e31c] | 2197 | // |
---|
| 2198 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and |
---|
| 2199 | // returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2200 | |
---|
| 2201 | typedef_redeclarator: |
---|
[4d51835] | 2202 | paren_typedef attribute_list_opt |
---|
| 2203 | | typedef_ptr |
---|
| 2204 | | typedef_array attribute_list_opt |
---|
| 2205 | | typedef_function attribute_list_opt |
---|
| 2206 | ; |
---|
[51b7345] | 2207 | |
---|
| 2208 | paren_typedef: |
---|
[4d51835] | 2209 | TYPEDEFname |
---|
| 2210 | { |
---|
| 2211 | typedefTable.setNextIdentifier( *($1) ); |
---|
| 2212 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2213 | } |
---|
| 2214 | | '(' paren_typedef ')' |
---|
| 2215 | { $$ = $2; } |
---|
| 2216 | ; |
---|
[51b7345] | 2217 | |
---|
| 2218 | typedef_ptr: |
---|
[4d51835] | 2219 | '*' typedef_redeclarator |
---|
| 2220 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2221 | | '*' type_qualifier_list typedef_redeclarator |
---|
| 2222 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2223 | | '(' typedef_ptr ')' |
---|
| 2224 | { $$ = $2; } |
---|
| 2225 | ; |
---|
[51b7345] | 2226 | |
---|
| 2227 | typedef_array: |
---|
[4d51835] | 2228 | paren_typedef array_dimension |
---|
| 2229 | { $$ = $1->addArray( $2 ); } |
---|
| 2230 | | '(' typedef_ptr ')' array_dimension |
---|
| 2231 | { $$ = $2->addArray( $4 ); } |
---|
| 2232 | | '(' typedef_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2233 | { $$ = $2->addArray( $4 ); } |
---|
| 2234 | | '(' typedef_array ')' // redundant parenthesis |
---|
| 2235 | { $$ = $2; } |
---|
| 2236 | ; |
---|
[51b7345] | 2237 | |
---|
| 2238 | typedef_function: |
---|
[4d51835] | 2239 | paren_typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2240 | { $$ = $1->addParamList( $4 ); } |
---|
| 2241 | | '(' typedef_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2242 | { $$ = $2->addParamList( $6 ); } |
---|
| 2243 | | '(' typedef_function ')' // redundant parenthesis |
---|
| 2244 | { $$ = $2; } |
---|
| 2245 | ; |
---|
[51b7345] | 2246 | |
---|
[c11e31c] | 2247 | // This pattern parses a declaration for a parameter variable or function prototype that is not redefining a |
---|
| 2248 | // typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern |
---|
| 2249 | // precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2250 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2251 | |
---|
| 2252 | identifier_parameter_declarator: |
---|
[4d51835] | 2253 | paren_identifier attribute_list_opt |
---|
| 2254 | | identifier_parameter_ptr |
---|
| 2255 | | identifier_parameter_array attribute_list_opt |
---|
| 2256 | | identifier_parameter_function attribute_list_opt |
---|
| 2257 | ; |
---|
[51b7345] | 2258 | |
---|
| 2259 | identifier_parameter_ptr: |
---|
[4d51835] | 2260 | '*' identifier_parameter_declarator |
---|
| 2261 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2262 | | '*' type_qualifier_list identifier_parameter_declarator |
---|
| 2263 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2264 | | '(' identifier_parameter_ptr ')' |
---|
| 2265 | { $$ = $2; } |
---|
| 2266 | ; |
---|
[51b7345] | 2267 | |
---|
| 2268 | identifier_parameter_array: |
---|
[4d51835] | 2269 | paren_identifier array_parameter_dimension |
---|
| 2270 | { $$ = $1->addArray( $2 ); } |
---|
| 2271 | | '(' identifier_parameter_ptr ')' array_dimension |
---|
| 2272 | { $$ = $2->addArray( $4 ); } |
---|
| 2273 | | '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2274 | { $$ = $2->addArray( $4 ); } |
---|
| 2275 | | '(' identifier_parameter_array ')' // redundant parenthesis |
---|
| 2276 | { $$ = $2; } |
---|
| 2277 | ; |
---|
[51b7345] | 2278 | |
---|
| 2279 | identifier_parameter_function: |
---|
[4d51835] | 2280 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2281 | { $$ = $1->addParamList( $4 ); } |
---|
| 2282 | | '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2283 | { $$ = $2->addParamList( $6 ); } |
---|
| 2284 | | '(' identifier_parameter_function ')' // redundant parenthesis |
---|
| 2285 | { $$ = $2; } |
---|
| 2286 | ; |
---|
[b87a5ed] | 2287 | |
---|
| 2288 | // This pattern parses a declaration for a parameter variable or function prototype that is redefining a |
---|
| 2289 | // typedef name, e.g.: |
---|
[c11e31c] | 2290 | // |
---|
[b87a5ed] | 2291 | // typedef int foo; |
---|
| 2292 | // int f( int foo ); // redefine typedef name in new scope |
---|
[c11e31c] | 2293 | // |
---|
[b87a5ed] | 2294 | // and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern |
---|
| 2295 | // handles the special meaning of parenthesis around a typedef name: |
---|
[c11e31c] | 2296 | // |
---|
[b87a5ed] | 2297 | // ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in |
---|
| 2298 | // parentheses is taken to be an abstract declarator that specifies a function with a single parameter, |
---|
| 2299 | // not as redundant parentheses around the identifier." |
---|
[c11e31c] | 2300 | // |
---|
| 2301 | // which precludes the following cases: |
---|
| 2302 | // |
---|
[b87a5ed] | 2303 | // typedef float T; |
---|
[4d51835] | 2304 | // int f( int ( T [5] ) ); // see abstract_parameter_declarator |
---|
[b87a5ed] | 2305 | // int g( int ( T ( int ) ) ); // see abstract_parameter_declarator |
---|
| 2306 | // int f( int f1( T a[5] ) ); // see identifier_parameter_declarator |
---|
| 2307 | // int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator |
---|
[c11e31c] | 2308 | // |
---|
[b87a5ed] | 2309 | // In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type |
---|
| 2310 | // list, and not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes |
---|
| 2311 | // declaring an array of functions versus a pointer to an array of functions, and returning arrays and |
---|
| 2312 | // functions versus pointers to arrays and functions. |
---|
[51b7345] | 2313 | |
---|
| 2314 | typedef_parameter_redeclarator: |
---|
[4d51835] | 2315 | typedef attribute_list_opt |
---|
| 2316 | | typedef_parameter_ptr |
---|
| 2317 | | typedef_parameter_array attribute_list_opt |
---|
| 2318 | | typedef_parameter_function attribute_list_opt |
---|
| 2319 | ; |
---|
[51b7345] | 2320 | |
---|
| 2321 | typedef: |
---|
[4d51835] | 2322 | TYPEDEFname |
---|
| 2323 | { |
---|
| 2324 | typedefTable.setNextIdentifier( *($1) ); |
---|
| 2325 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2326 | } |
---|
| 2327 | ; |
---|
[51b7345] | 2328 | |
---|
| 2329 | typedef_parameter_ptr: |
---|
[4d51835] | 2330 | '*' typedef_parameter_redeclarator |
---|
| 2331 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2332 | | '*' type_qualifier_list typedef_parameter_redeclarator |
---|
| 2333 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2334 | | '(' typedef_parameter_ptr ')' |
---|
| 2335 | { $$ = $2; } |
---|
| 2336 | ; |
---|
[51b7345] | 2337 | |
---|
| 2338 | typedef_parameter_array: |
---|
[4d51835] | 2339 | typedef array_parameter_dimension |
---|
| 2340 | { $$ = $1->addArray( $2 ); } |
---|
| 2341 | | '(' typedef_parameter_ptr ')' array_parameter_dimension |
---|
| 2342 | { $$ = $2->addArray( $4 ); } |
---|
| 2343 | ; |
---|
[51b7345] | 2344 | |
---|
| 2345 | typedef_parameter_function: |
---|
[4d51835] | 2346 | typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2347 | { $$ = $1->addParamList( $4 ); } |
---|
| 2348 | | '(' typedef_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2349 | { $$ = $2->addParamList( $6 ); } |
---|
| 2350 | ; |
---|
[b87a5ed] | 2351 | |
---|
| 2352 | // This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no |
---|
| 2353 | // identifier to which the type applies, e.g.: |
---|
[c11e31c] | 2354 | // |
---|
[b87a5ed] | 2355 | // sizeof( int ); |
---|
| 2356 | // sizeof( int [10] ); |
---|
[c11e31c] | 2357 | // |
---|
[b87a5ed] | 2358 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and |
---|
| 2359 | // returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2360 | |
---|
| 2361 | abstract_declarator: |
---|
[4d51835] | 2362 | abstract_ptr |
---|
| 2363 | | abstract_array attribute_list_opt |
---|
| 2364 | | abstract_function attribute_list_opt |
---|
| 2365 | ; |
---|
[51b7345] | 2366 | |
---|
| 2367 | abstract_ptr: |
---|
[4d51835] | 2368 | '*' |
---|
| 2369 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
| 2370 | | '*' type_qualifier_list |
---|
| 2371 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
| 2372 | | '*' abstract_declarator |
---|
| 2373 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2374 | | '*' type_qualifier_list abstract_declarator |
---|
| 2375 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2376 | | '(' abstract_ptr ')' |
---|
| 2377 | { $$ = $2; } |
---|
| 2378 | ; |
---|
[51b7345] | 2379 | |
---|
| 2380 | abstract_array: |
---|
[4d51835] | 2381 | array_dimension |
---|
| 2382 | | '(' abstract_ptr ')' array_dimension |
---|
| 2383 | { $$ = $2->addArray( $4 ); } |
---|
| 2384 | | '(' abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2385 | { $$ = $2->addArray( $4 ); } |
---|
| 2386 | | '(' abstract_array ')' // redundant parenthesis |
---|
| 2387 | { $$ = $2; } |
---|
| 2388 | ; |
---|
[51b7345] | 2389 | |
---|
| 2390 | abstract_function: |
---|
[4d51835] | 2391 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2392 | { $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); } |
---|
| 2393 | | '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2394 | { $$ = $2->addParamList( $6 ); } |
---|
| 2395 | | '(' abstract_function ')' // redundant parenthesis |
---|
| 2396 | { $$ = $2; } |
---|
| 2397 | ; |
---|
[51b7345] | 2398 | |
---|
| 2399 | array_dimension: |
---|
[4d51835] | 2400 | // Only the first dimension can be empty. |
---|
| 2401 | '[' push pop ']' |
---|
| 2402 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
| 2403 | | '[' push pop ']' multi_array_dimension |
---|
| 2404 | { $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $5 ); } |
---|
| 2405 | | multi_array_dimension |
---|
| 2406 | ; |
---|
[51b7345] | 2407 | |
---|
| 2408 | multi_array_dimension: |
---|
[4d51835] | 2409 | '[' push assignment_expression pop ']' |
---|
| 2410 | { $$ = DeclarationNode::newArray( $3, 0, false ); } |
---|
| 2411 | | '[' push '*' pop ']' // C99 |
---|
| 2412 | { $$ = DeclarationNode::newVarArray( 0 ); } |
---|
| 2413 | | multi_array_dimension '[' push assignment_expression pop ']' |
---|
| 2414 | { $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); } |
---|
| 2415 | | multi_array_dimension '[' push '*' pop ']' // C99 |
---|
| 2416 | { $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); } |
---|
| 2417 | ; |
---|
[51b7345] | 2418 | |
---|
[c11e31c] | 2419 | // This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no |
---|
| 2420 | // identifier to which the type applies, e.g.: |
---|
| 2421 | // |
---|
[b87a5ed] | 2422 | // int f( int ); // abstract variable parameter; no parameter name specified |
---|
| 2423 | // int f( int (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 2424 | // |
---|
[b87a5ed] | 2425 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and |
---|
| 2426 | // returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2427 | |
---|
| 2428 | abstract_parameter_declarator: |
---|
[4d51835] | 2429 | abstract_parameter_ptr |
---|
| 2430 | | abstract_parameter_array attribute_list_opt |
---|
| 2431 | | abstract_parameter_function attribute_list_opt |
---|
| 2432 | ; |
---|
[51b7345] | 2433 | |
---|
| 2434 | abstract_parameter_ptr: |
---|
[4d51835] | 2435 | '*' |
---|
| 2436 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
| 2437 | | '*' type_qualifier_list |
---|
| 2438 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
| 2439 | | '*' abstract_parameter_declarator |
---|
| 2440 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2441 | | '*' type_qualifier_list abstract_parameter_declarator |
---|
| 2442 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2443 | | '(' abstract_parameter_ptr ')' |
---|
| 2444 | { $$ = $2; } |
---|
| 2445 | ; |
---|
[51b7345] | 2446 | |
---|
| 2447 | abstract_parameter_array: |
---|
[4d51835] | 2448 | array_parameter_dimension |
---|
| 2449 | | '(' abstract_parameter_ptr ')' array_parameter_dimension |
---|
| 2450 | { $$ = $2->addArray( $4 ); } |
---|
| 2451 | | '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2452 | { $$ = $2->addArray( $4 ); } |
---|
| 2453 | | '(' abstract_parameter_array ')' // redundant parenthesis |
---|
| 2454 | { $$ = $2; } |
---|
| 2455 | ; |
---|
[51b7345] | 2456 | |
---|
| 2457 | abstract_parameter_function: |
---|
[4d51835] | 2458 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2459 | { $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); } |
---|
| 2460 | | '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2461 | { $$ = $2->addParamList( $6 ); } |
---|
| 2462 | | '(' abstract_parameter_function ')' // redundant parenthesis |
---|
| 2463 | { $$ = $2; } |
---|
| 2464 | ; |
---|
[51b7345] | 2465 | |
---|
| 2466 | array_parameter_dimension: |
---|
[4d51835] | 2467 | // Only the first dimension can be empty or have qualifiers. |
---|
| 2468 | array_parameter_1st_dimension |
---|
| 2469 | | array_parameter_1st_dimension multi_array_dimension |
---|
| 2470 | { $$ = $1->addArray( $2 ); } |
---|
| 2471 | | multi_array_dimension |
---|
| 2472 | ; |
---|
[51b7345] | 2473 | |
---|
[c11e31c] | 2474 | // The declaration of an array parameter has additional syntax over arrays in normal variable declarations: |
---|
| 2475 | // |
---|
[b87a5ed] | 2476 | // ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall |
---|
| 2477 | // appear only in a declaration of a function parameter with an array type, and then only in the |
---|
| 2478 | // outermost array type derivation." |
---|
[51b7345] | 2479 | |
---|
| 2480 | array_parameter_1st_dimension: |
---|
[4d51835] | 2481 | '[' push pop ']' |
---|
| 2482 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
| 2483 | // multi_array_dimension handles the '[' '*' ']' case |
---|
| 2484 | | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 2485 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 2486 | | '[' push type_qualifier_list pop ']' |
---|
| 2487 | { $$ = DeclarationNode::newArray( 0, $3, false ); } |
---|
| 2488 | // multi_array_dimension handles the '[' assignment_expression ']' case |
---|
| 2489 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 2490 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 2491 | | '[' push STATIC type_qualifier_list_opt assignment_expression pop ']' |
---|
| 2492 | { $$ = DeclarationNode::newArray( $5, $4, true ); } |
---|
| 2493 | | '[' push type_qualifier_list STATIC assignment_expression pop ']' |
---|
| 2494 | { $$ = DeclarationNode::newArray( $5, $3, true ); } |
---|
| 2495 | ; |
---|
[b87a5ed] | 2496 | |
---|
| 2497 | // This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type |
---|
| 2498 | // applies, e.g.: |
---|
[c11e31c] | 2499 | // |
---|
[b87a5ed] | 2500 | // sizeof( int ); // abstract variable; no identifier name specified |
---|
[c11e31c] | 2501 | // |
---|
[b87a5ed] | 2502 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and |
---|
| 2503 | // returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2504 | |
---|
| 2505 | variable_abstract_declarator: |
---|
[4d51835] | 2506 | variable_abstract_ptr |
---|
| 2507 | | variable_abstract_array attribute_list_opt |
---|
| 2508 | | variable_abstract_function attribute_list_opt |
---|
| 2509 | ; |
---|
[51b7345] | 2510 | |
---|
| 2511 | variable_abstract_ptr: |
---|
[4d51835] | 2512 | '*' |
---|
| 2513 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
| 2514 | | '*' type_qualifier_list |
---|
| 2515 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
| 2516 | | '*' variable_abstract_declarator |
---|
| 2517 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2518 | | '*' type_qualifier_list variable_abstract_declarator |
---|
| 2519 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2520 | | '(' variable_abstract_ptr ')' |
---|
| 2521 | { $$ = $2; } |
---|
| 2522 | ; |
---|
[51b7345] | 2523 | |
---|
| 2524 | variable_abstract_array: |
---|
[4d51835] | 2525 | array_dimension |
---|
| 2526 | | '(' variable_abstract_ptr ')' array_dimension |
---|
| 2527 | { $$ = $2->addArray( $4 ); } |
---|
| 2528 | | '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2529 | { $$ = $2->addArray( $4 ); } |
---|
| 2530 | | '(' variable_abstract_array ')' // redundant parenthesis |
---|
| 2531 | { $$ = $2; } |
---|
| 2532 | ; |
---|
[51b7345] | 2533 | |
---|
| 2534 | variable_abstract_function: |
---|
[4d51835] | 2535 | '(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2536 | { $$ = $2->addParamList( $6 ); } |
---|
| 2537 | | '(' variable_abstract_function ')' // redundant parenthesis |
---|
| 2538 | { $$ = $2; } |
---|
| 2539 | ; |
---|
[b87a5ed] | 2540 | |
---|
| 2541 | // This pattern parses a new-style declaration for a parameter variable or function prototype that is either |
---|
| 2542 | // an identifier or typedef name and allows the C99 array options, which can only appear in a parameter list. |
---|
| 2543 | |
---|
| 2544 | new_identifier_parameter_declarator_tuple: // CFA |
---|
[4d51835] | 2545 | new_identifier_parameter_declarator_no_tuple |
---|
| 2546 | | new_abstract_tuple |
---|
| 2547 | | type_qualifier_list new_abstract_tuple |
---|
| 2548 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 2549 | ; |
---|
[b87a5ed] | 2550 | |
---|
| 2551 | new_identifier_parameter_declarator_no_tuple: // CFA |
---|
[4d51835] | 2552 | new_identifier_parameter_ptr |
---|
| 2553 | | new_identifier_parameter_array |
---|
| 2554 | ; |
---|
[b87a5ed] | 2555 | |
---|
| 2556 | new_identifier_parameter_ptr: // CFA |
---|
[4d51835] | 2557 | '*' type_specifier |
---|
| 2558 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2559 | | type_qualifier_list '*' type_specifier |
---|
| 2560 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2561 | | '*' new_abstract_function |
---|
| 2562 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2563 | | type_qualifier_list '*' new_abstract_function |
---|
| 2564 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2565 | | '*' new_identifier_parameter_declarator_tuple |
---|
| 2566 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2567 | | type_qualifier_list '*' new_identifier_parameter_declarator_tuple |
---|
| 2568 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2569 | ; |
---|
[b87a5ed] | 2570 | |
---|
| 2571 | new_identifier_parameter_array: // CFA |
---|
[4d51835] | 2572 | // Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due |
---|
| 2573 | // to shift/reduce conflict with new-style empty (void) function return type. |
---|
| 2574 | '[' push pop ']' type_specifier |
---|
| 2575 | { $$ = $5->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2576 | | new_array_parameter_1st_dimension type_specifier |
---|
| 2577 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2578 | | '[' push pop ']' multi_array_dimension type_specifier |
---|
| 2579 | { $$ = $6->addNewArray( $5 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2580 | | new_array_parameter_1st_dimension multi_array_dimension type_specifier |
---|
| 2581 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
| 2582 | | multi_array_dimension type_specifier |
---|
| 2583 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2584 | | '[' push pop ']' new_identifier_parameter_ptr |
---|
| 2585 | { $$ = $5->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2586 | | new_array_parameter_1st_dimension new_identifier_parameter_ptr |
---|
| 2587 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2588 | | '[' push pop ']' multi_array_dimension new_identifier_parameter_ptr |
---|
| 2589 | { $$ = $6->addNewArray( $5 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2590 | | new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr |
---|
| 2591 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
| 2592 | | multi_array_dimension new_identifier_parameter_ptr |
---|
| 2593 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2594 | ; |
---|
[51b7345] | 2595 | |
---|
| 2596 | new_array_parameter_1st_dimension: |
---|
[4d51835] | 2597 | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 2598 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 2599 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 2600 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 2601 | | '[' push declaration_qualifier_list assignment_expression pop ']' |
---|
| 2602 | // declaration_qualifier_list must be used because of shift/reduce conflict with |
---|
| 2603 | // assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot |
---|
| 2604 | // appear in this context. |
---|
| 2605 | { $$ = DeclarationNode::newArray( $4, $3, true ); } |
---|
| 2606 | | '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']' |
---|
| 2607 | { $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); } |
---|
| 2608 | ; |
---|
[b87a5ed] | 2609 | |
---|
| 2610 | // This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is |
---|
| 2611 | // no identifier to which the type applies, e.g.: |
---|
[c11e31c] | 2612 | // |
---|
[b87a5ed] | 2613 | // [int] f( int ); // abstract variable parameter; no parameter name specified |
---|
| 2614 | // [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 2615 | // |
---|
| 2616 | // These rules need LR(3): |
---|
| 2617 | // |
---|
[b87a5ed] | 2618 | // new_abstract_tuple identifier_or_typedef_name |
---|
| 2619 | // '[' new_parameter_list ']' identifier_or_typedef_name '(' new_parameter_type_list_opt ')' |
---|
[c11e31c] | 2620 | // |
---|
| 2621 | // since a function return type can be syntactically identical to a tuple type: |
---|
| 2622 | // |
---|
[b87a5ed] | 2623 | // [int, int] t; |
---|
| 2624 | // [int, int] f( int ); |
---|
[c11e31c] | 2625 | // |
---|
| 2626 | // Therefore, it is necessary to look at the token after identifier_or_typedef_name to know when to reduce |
---|
[b87a5ed] | 2627 | // new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the |
---|
| 2628 | // necessary lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and |
---|
| 2629 | // tuple declarations are duplicated when appearing with new_function_specifier. |
---|
| 2630 | |
---|
| 2631 | new_abstract_declarator_tuple: // CFA |
---|
[4d51835] | 2632 | new_abstract_tuple |
---|
| 2633 | | type_qualifier_list new_abstract_tuple |
---|
| 2634 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 2635 | | new_abstract_declarator_no_tuple |
---|
| 2636 | ; |
---|
[b87a5ed] | 2637 | |
---|
| 2638 | new_abstract_declarator_no_tuple: // CFA |
---|
[4d51835] | 2639 | new_abstract_ptr |
---|
| 2640 | | new_abstract_array |
---|
| 2641 | ; |
---|
[b87a5ed] | 2642 | |
---|
| 2643 | new_abstract_ptr: // CFA |
---|
[4d51835] | 2644 | '*' type_specifier |
---|
| 2645 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2646 | | type_qualifier_list '*' type_specifier |
---|
| 2647 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2648 | | '*' new_abstract_function |
---|
| 2649 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2650 | | type_qualifier_list '*' new_abstract_function |
---|
| 2651 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2652 | | '*' new_abstract_declarator_tuple |
---|
| 2653 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
| 2654 | | type_qualifier_list '*' new_abstract_declarator_tuple |
---|
| 2655 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2656 | ; |
---|
[b87a5ed] | 2657 | |
---|
| 2658 | new_abstract_array: // CFA |
---|
[4d51835] | 2659 | // Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce |
---|
| 2660 | // conflict with empty (void) function return type. |
---|
| 2661 | '[' push pop ']' type_specifier |
---|
| 2662 | { $$ = $5->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2663 | | '[' push pop ']' multi_array_dimension type_specifier |
---|
| 2664 | { $$ = $6->addNewArray( $5 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2665 | | multi_array_dimension type_specifier |
---|
| 2666 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2667 | | '[' push pop ']' new_abstract_ptr |
---|
| 2668 | { $$ = $5->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2669 | | '[' push pop ']' multi_array_dimension new_abstract_ptr |
---|
| 2670 | { $$ = $6->addNewArray( $5 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
| 2671 | | multi_array_dimension new_abstract_ptr |
---|
| 2672 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2673 | ; |
---|
[b87a5ed] | 2674 | |
---|
| 2675 | new_abstract_tuple: // CFA |
---|
[4d51835] | 2676 | '[' push new_abstract_parameter_list pop ']' |
---|
| 2677 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
| 2678 | ; |
---|
[b87a5ed] | 2679 | |
---|
| 2680 | new_abstract_function: // CFA |
---|
[4d51835] | 2681 | '[' push pop ']' '(' new_parameter_type_list_opt ')' |
---|
| 2682 | { $$ = DeclarationNode::newFunction( 0, DeclarationNode::newTuple( 0 ), $6, 0 ); } |
---|
| 2683 | | new_abstract_tuple '(' push new_parameter_type_list_opt pop ')' |
---|
| 2684 | { $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); } |
---|
| 2685 | | new_function_return '(' push new_parameter_type_list_opt pop ')' |
---|
| 2686 | { $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); } |
---|
| 2687 | ; |
---|
[b87a5ed] | 2688 | |
---|
| 2689 | // 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration |
---|
| 2690 | // specifiers in each declaration, and in the specifier-qualifier list in each structure declaration and |
---|
| 2691 | // type name." |
---|
[c11e31c] | 2692 | // |
---|
[b87a5ed] | 2693 | // 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the |
---|
| 2694 | // beginning of the declaration specifiers in a declaration is an obsolescent feature." |
---|
[c11e31c] | 2695 | // |
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| 2696 | // 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not |
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| 2697 | // prototype-format parameter type declarators) is an obsolescent feature." |
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| 2698 | // |
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[b87a5ed] | 2699 | // 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter |
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| 2700 | // identifier and declaration lists (not prototype-format parameter type and identifier declarators) is an |
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| 2701 | // obsolescent feature. |
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[51b7345] | 2702 | |
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[c11e31c] | 2703 | //************************* MISCELLANEOUS ******************************** |
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[51b7345] | 2704 | |
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[b87a5ed] | 2705 | comma_opt: // redundant comma |
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[4d51835] | 2706 | // empty |
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| 2707 | | ',' |
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| 2708 | ; |
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[51b7345] | 2709 | |
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| 2710 | assignment_opt: |
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[4d51835] | 2711 | // empty |
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| 2712 | { $$ = 0; } |
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| 2713 | | '=' assignment_expression |
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| 2714 | { $$ = $2; } |
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| 2715 | ; |
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[51b7345] | 2716 | |
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| 2717 | %% |
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[c11e31c] | 2718 | // ----end of grammar---- |
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[51b7345] | 2719 | |
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[3848e0e] | 2720 | void yyerror( char *string ) { |
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[b87a5ed] | 2721 | using std::cout; |
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| 2722 | using std::endl; |
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| 2723 | cout << "Error "; |
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| 2724 | if ( yyfilename ) { |
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| 2725 | cout << "in file " << yyfilename << " "; |
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| 2726 | } |
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| 2727 | cout << "at line " << yylineno << " reading token \"" << *(yylval.tok.str) << "\"" << endl; |
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[51b7345] | 2728 | } |
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| 2729 | |
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[c11e31c] | 2730 | // Local Variables: // |
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| 2731 | // fill-column: 110 // |
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[b87a5ed] | 2732 | // tab-width: 4 // |
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| 2733 | // mode: c++ // |
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[c11e31c] | 2734 | // compile-command: "make install" // |
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| 2735 | // End: // |
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