[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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[51b1202] | 12 | // Last Modified On : Tue Aug 11 16:01:49 2015
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| 13 | // Update Count : 1350
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[c11e31c] | 14 | //
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| 15 |
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[de62360d] | 16 | // This grammar is based on the ANSI99/11 C grammar, specifically parts of EXPRESSION and STATEMENTS, and on the C
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| 17 | // grammar by James A. Roskind, specifically parts of DECLARATIONS and EXTERNAL DEFINITIONS. While parts have been
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| 18 | // copied, important changes have been made in all sections; these changes are sufficient to constitute a new grammar.
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| 19 | // In particular, this grammar attempts to be more syntactically precise, i.e., it parses less incorrect language syntax
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| 20 | // that must be subsequently rejected by semantic checks. Nevertheless, there are still several semantic checks
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| 21 | // required and many are noted in the grammar. Finally, the grammar is extended with GCC and CFA language extensions.
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[c11e31c] | 22 |
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[de62360d] | 23 | // Acknowledgments to Richard Bilson, Glen Ditchfield, and Rodolfo Gabriel Esteves who all helped when I got stuck with
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| 24 | // the grammar.
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[c11e31c] | 25 |
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| 26 | // The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed, except for:
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| 27 | //
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| 28 | // 1. designation with '=' (use ':' instead)
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| 29 | //
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[de62360d] | 30 | // Most of the syntactic extensions from ANSI90 to ANSI11 C are marked with the comment "C99/C11". This grammar also has
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| 31 | // two levels of extensions. The first extensions cover most of the GCC C extensions, except for:
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[c11e31c] | 32 | //
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| 33 | // 1. nested functions
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| 34 | // 2. generalized lvalues
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| 35 | // 3. designation with and without '=' (use ':' instead)
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| 36 | // 4. attributes not allowed in parenthesis of declarator
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| 37 | //
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[de62360d] | 38 | // All of the syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall
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| 39 | // (CFA), which fixes several of C's outstanding problems and extends C with many modern language concepts. All of the
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| 40 | // syntactic extensions for CFA C are marked with the comment "CFA". As noted above, there is one unreconcileable
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| 41 | // parsing problem between C99 and CFA with respect to designators; this is discussed in detail before the "designation"
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| 42 | // grammar rule.
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[51b73452] | 43 |
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| 44 | %{
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[b87a5ed] | 45 | #define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time
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| 46 | #define YYDEBUG 1 // get the pretty debugging code to compile
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[8a95629] | 47 | extern char *yytext;
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[51b73452] | 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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[1db21619] | 56 | #include "TypeData.h"
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[51b73452] | 57 | #include "LinkageSpec.h"
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| 58 |
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[b87a5ed] | 59 | DeclarationNode *theTree = 0; // the resulting parse tree
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[51b73452] | 60 | LinkageSpec::Type linkage = LinkageSpec::Cforall;
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| 61 | std::stack< LinkageSpec::Type > linkageStack;
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| 62 | TypedefTable typedefTable;
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| 63 | %}
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| 64 |
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[c11e31c] | 65 | //************************* TERMINAL TOKENS ********************************
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[51b73452] | 66 |
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[c11e31c] | 67 | // keywords
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[51b73452] | 68 | %token TYPEDEF
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| 69 | %token AUTO EXTERN REGISTER STATIC
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[b87a5ed] | 70 | %token INLINE // C99
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| 71 | %token FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
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[51b73452] | 72 | %token CONST VOLATILE
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[b87a5ed] | 73 | %token RESTRICT // C99
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| 74 | %token FORALL LVALUE // CFA
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[51b73452] | 75 | %token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
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[b87a5ed] | 76 | %token BOOL COMPLEX IMAGINARY // C99
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| 77 | %token TYPEOF LABEL // GCC
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[51b73452] | 78 | %token ENUM STRUCT UNION
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[b87a5ed] | 79 | %token TYPE FTYPE DTYPE CONTEXT // CFA
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[51b73452] | 80 | %token SIZEOF
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[b87a5ed] | 81 | %token ATTRIBUTE EXTENSION // GCC
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[51b73452] | 82 | %token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
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[b87a5ed] | 83 | %token CHOOSE FALLTHRU TRY CATCH FINALLY THROW // CFA
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| 84 | %token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
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[c11e31c] | 85 | %token ALIGNAS ALIGNOF ATOMIC GENERIC NORETURN STATICASSERT THREADLOCAL // C11
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[51b73452] | 86 |
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[c11e31c] | 87 | // names and constants: lexer differentiates between identifier and typedef names
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[b87a5ed] | 88 | %token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname
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| 89 | %token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname
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| 90 | %token<tok> INTEGERconstant FLOATINGconstant CHARACTERconstant STRINGliteral
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| 91 | %token<tok> ZERO ONE // CFA
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[51b73452] | 92 |
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[c11e31c] | 93 | // multi-character operators
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[b87a5ed] | 94 | %token ARROW // ->
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| 95 | %token ICR DECR // ++ --
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| 96 | %token LS RS // << >>
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| 97 | %token LE GE EQ NE // <= >= == !=
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| 98 | %token ANDAND OROR // && ||
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| 99 | %token ELLIPSIS // ...
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| 100 |
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| 101 | %token MULTassign DIVassign MODassign // *= /= %=/
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| 102 | %token PLUSassign MINUSassign // += -=
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| 103 | %token LSassign RSassign // <<= >>=
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| 104 | %token ANDassign ERassign ORassign // &= ^= |=
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[51b73452] | 105 |
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[c11e31c] | 106 | // Types declaration
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[51b73452] | 107 | %union
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| 108 | {
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[b87a5ed] | 109 | Token tok;
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| 110 | ParseNode *pn;
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| 111 | ExpressionNode *en;
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| 112 | DeclarationNode *decl;
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[68cd1ce] | 113 | DeclarationNode::Aggregate aggKey;
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[b87a5ed] | 114 | DeclarationNode::TypeClass tclass;
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| 115 | StatementNode *sn;
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| 116 | ConstantNode *constant;
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[7f5566b] | 117 | LabelNode *label;
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[b87a5ed] | 118 | InitializerNode *in;
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[7f5566b] | 119 | bool flag;
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[51b73452] | 120 | }
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| 121 |
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| 122 | %type<tok> zero_one identifier no_attr_identifier no_01_identifier
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[2871210] | 123 | %type<tok> identifier_or_type_name no_attr_identifier_or_type_name no_01_identifier_or_type_name
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[51b73452] | 124 | %type<constant> string_literal_list
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| 125 |
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[c11e31c] | 126 | // expressions
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[51b73452] | 127 | %type<constant> constant
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[b87a5ed] | 128 | %type<en> tuple tuple_expression_list
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| 129 | %type<en> unary_operator assignment_operator
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| 130 | %type<en> primary_expression postfix_expression unary_expression
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| 131 | %type<en> cast_expression multiplicative_expression additive_expression shift_expression
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| 132 | %type<en> relational_expression equality_expression AND_expression exclusive_OR_expression
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| 133 | %type<en> inclusive_OR_expression logical_AND_expression logical_OR_expression conditional_expression
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| 134 | %type<en> constant_expression assignment_expression assignment_expression_opt
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| 135 | %type<en> comma_expression comma_expression_opt
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| 136 | %type<en> argument_expression_list argument_expression for_control_expression assignment_opt
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[51b73452] | 137 | %type<en> subrange
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[7f5566b] | 138 | %type<en> asm_operands_opt asm_operands_list asm_operand
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| 139 | %type<label> label_list
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| 140 | %type<constant> asm_clobbers_list_opt
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| 141 | %type<flag> asm_volatile_opt
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[51b73452] | 142 |
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[c11e31c] | 143 | // statements
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[b87a5ed] | 144 | %type<sn> labeled_statement compound_statement expression_statement selection_statement
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| 145 | %type<sn> iteration_statement jump_statement exception_statement asm_statement
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| 146 | %type<sn> fall_through_opt fall_through
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| 147 | %type<sn> statement statement_list
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| 148 | %type<sn> block_item_list block_item
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[51b73452] | 149 | %type<sn> case_clause
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[b87a5ed] | 150 | %type<en> case_value case_value_list
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| 151 | %type<sn> case_label case_label_list
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| 152 | %type<sn> switch_clause_list_opt switch_clause_list choose_clause_list_opt choose_clause_list
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| 153 | %type<pn> handler_list handler_clause finally_clause
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[51b73452] | 154 |
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[c11e31c] | 155 | // declarations
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[51b73452] | 156 | %type<decl> abstract_array abstract_declarator abstract_function abstract_parameter_array
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| 157 | %type<decl> abstract_parameter_declaration abstract_parameter_declarator abstract_parameter_function
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| 158 | %type<decl> abstract_parameter_ptr abstract_ptr
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| 159 |
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| 160 | %type<aggKey> aggregate_key
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| 161 | %type<decl> aggregate_name
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| 162 |
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| 163 | %type<decl> array_dimension array_parameter_1st_dimension array_parameter_dimension multi_array_dimension
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| 164 |
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| 165 | %type<decl> assertion assertion_list_opt
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| 166 |
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| 167 | %type<en> bit_subrange_size_opt bit_subrange_size
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| 168 |
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| 169 | %type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type_name indirect_type_name
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| 170 |
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| 171 | %type<decl> context_declaration context_declaration_list context_declaring_list context_specifier
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| 172 |
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| 173 | %type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
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| 174 | %type<decl> declaration_specifier declarator declaring_list
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| 175 |
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| 176 | %type<decl> elaborated_type_name
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| 177 |
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| 178 | %type<decl> enumerator_list enum_name
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| 179 | %type<en> enumerator_value_opt
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| 180 |
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| 181 | %type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt
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| 182 |
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| 183 | %type<decl> field_declaration field_declaration_list field_declarator field_declaring_list
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| 184 | %type<en> field field_list
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| 185 |
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[4d51835] | 186 | %type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
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[51b73452] | 187 |
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| 188 | %type<decl> identifier_parameter_array identifier_parameter_declarator identifier_parameter_function
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| 189 | %type<decl> identifier_parameter_ptr identifier_list
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| 190 |
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| 191 | %type<decl> new_abstract_array new_abstract_declarator_no_tuple new_abstract_declarator_tuple
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| 192 | %type<decl> new_abstract_function new_abstract_parameter_declaration new_abstract_parameter_list
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| 193 | %type<decl> new_abstract_ptr new_abstract_tuple
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| 194 |
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| 195 | %type<decl> new_array_parameter_1st_dimension
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| 196 |
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| 197 | %type<decl> new_context_declaring_list new_declaration new_field_declaring_list
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| 198 | %type<decl> new_function_declaration new_function_return new_function_specifier
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| 199 |
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| 200 | %type<decl> new_identifier_parameter_array new_identifier_parameter_declarator_no_tuple
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| 201 | %type<decl> new_identifier_parameter_declarator_tuple new_identifier_parameter_ptr
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| 202 |
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| 203 | %type<decl> new_parameter_declaration new_parameter_list new_parameter_type_list new_parameter_type_list_opt
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| 204 |
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| 205 | %type<decl> new_typedef_declaration new_variable_declaration new_variable_specifier
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| 206 |
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| 207 | %type<decl> old_declaration old_declaration_list old_declaration_list_opt old_function_array
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| 208 | %type<decl> old_function_declarator old_function_no_ptr old_function_ptr
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| 209 |
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| 210 | %type<decl> parameter_declaration parameter_list parameter_type_list
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| 211 | %type<decl> parameter_type_list_opt
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| 212 |
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[2871210] | 213 | %type<decl> paren_identifier paren_type
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[51b73452] | 214 |
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| 215 | %type<decl> storage_class storage_class_name storage_class_list
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| 216 |
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| 217 | %type<decl> sue_declaration_specifier sue_type_specifier
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| 218 |
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| 219 | %type<tclass> type_class
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| 220 | %type<decl> type_declarator type_declarator_name type_declaring_list
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| 221 |
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[2871210] | 222 | %type<decl> typedef type_array typedef_declaration typedef_declaration_specifier typedef_expression
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| 223 | %type<decl> type_function type_parameter_array type_parameter_function type_parameter_ptr
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| 224 | %type<decl> type_parameter_redeclarator type_ptr type_redeclarator typedef_type_specifier
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| 225 | %type<decl> typegen_declaration_specifier typegen_type_specifier typegen_name
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[51b73452] | 226 |
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| 227 | %type<decl> type_name type_name_no_function
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| 228 | %type<decl> type_parameter type_parameter_list
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| 229 |
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| 230 | %type<en> type_name_list
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| 231 |
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| 232 | %type<decl> type_qualifier type_qualifier_name type_qualifier_list type_qualifier_list_opt type_specifier
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| 233 |
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| 234 | %type<decl> variable_abstract_array variable_abstract_declarator variable_abstract_function
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| 235 | %type<decl> variable_abstract_ptr variable_array variable_declarator variable_function variable_ptr
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| 236 |
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[1db21619] | 237 | %type<decl> attribute_list_opt attribute_list attribute
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| 238 |
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[c11e31c] | 239 | // initializers
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[51b73452] | 240 | %type<in> initializer initializer_list initializer_opt
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| 241 |
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[c11e31c] | 242 | // designators
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[51b73452] | 243 | %type<en> designator designator_list designation
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| 244 |
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| 245 |
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[b87a5ed] | 246 | // Handle single shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string
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| 247 | // is ambiguous:
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| 248 | // .---------. matches IF '(' comma_expression ')' statement
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[c11e31c] | 249 | // if ( C ) S1 else S2
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[b87a5ed] | 250 | // `-----------------' matches IF '(' comma_expression ')' statement ELSE statement */
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[51b73452] | 251 |
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[c11e31c] | 252 | %nonassoc THEN // rule precedence for IF '(' comma_expression ')' statement
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| 253 | %nonassoc ELSE // token precedence for start of else clause in IF statement
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[51b73452] | 254 |
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[b87a5ed] | 255 | %start translation_unit // parse-tree root
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[51b73452] | 256 |
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| 257 | %%
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[c11e31c] | 258 | //************************* Namespace Management ********************************
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| 259 |
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[de62360d] | 260 | // The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal symbols
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| 261 | // "identifier" and "TYPEDEFname" that are lexically identical. While it is possible to write a purely context-free
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| 262 | // grammar, such a grammar would obscure the relationship between syntactic and semantic constructs. Hence, this
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| 263 | // grammar uses the ANSI style.
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[c11e31c] | 264 | //
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[de62360d] | 265 | // Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, those
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| 266 | // introduced through "forall" qualifiers), and by introducing "type generators" -- parametrized types. This latter
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| 267 | // type name creates a third class of identifiers that must be distinguished by the scanner.
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[c11e31c] | 268 | //
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[de62360d] | 269 | // Since the scanner cannot distinguish among the different classes of identifiers without some context information, it
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| 270 | // accesses a data structure (the TypedefTable) to allow classification of an identifier that it has just read.
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| 271 | // Semantic actions during the parser update this data structure when the class of identifiers change.
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[c11e31c] | 272 | //
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[de62360d] | 273 | // Because the Cforall language is block-scoped, there is the possibility that an identifier can change its class in a
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| 274 | // local scope; it must revert to its original class at the end of the block. Since type names can be local to a
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| 275 | // particular declaration, each declaration is itself a scope. This requires distinguishing between type names that are
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| 276 | // local to the current declaration scope and those that persist past the end of the declaration (i.e., names defined in
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| 277 | // "typedef" or "type" declarations).
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[c11e31c] | 278 | //
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[de62360d] | 279 | // The non-terminals "push" and "pop" derive the empty string; their only use is to denote the opening and closing of
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| 280 | // scopes. Every push must have a matching pop, although it is regrettable the matching pairs do not always occur
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| 281 | // within the same rule. These non-terminals may appear in more contexts than strictly necessary from a semantic point
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| 282 | // of view. Unfortunately, these extra rules are necessary to prevent parsing conflicts -- the parser may not have
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| 283 | // enough context and look-ahead information to decide whether a new scope is necessary, so the effect of these extra
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| 284 | // rules is to open a new scope unconditionally. As the grammar evolves, it may be neccesary to add or move around
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| 285 | // "push" and "pop" nonterminals to resolve conflicts of this sort.
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[51b73452] | 286 |
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| 287 | push:
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[4d51835] | 288 | {
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| 289 | typedefTable.enterScope();
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| 290 | }
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| 291 | ;
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[51b73452] | 292 |
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| 293 | pop:
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[4d51835] | 294 | {
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| 295 | typedefTable.leaveScope();
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| 296 | }
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| 297 | ;
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[51b73452] | 298 |
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[c11e31c] | 299 | //************************* CONSTANTS ********************************
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[51b73452] | 300 |
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| 301 | constant:
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[de62360d] | 302 | // ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
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[59db689] | 303 | INTEGERconstant { $$ = new ConstantNode( ConstantNode::Integer, $1 ); }
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| 304 | | FLOATINGconstant { $$ = new ConstantNode( ConstantNode::Float, $1 ); }
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| 305 | | CHARACTERconstant { $$ = new ConstantNode( ConstantNode::Character, $1 ); }
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[4d51835] | 306 | ;
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[51b73452] | 307 |
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| 308 | identifier:
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[4d51835] | 309 | IDENTIFIER
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| 310 | | ATTR_IDENTIFIER // CFA
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| 311 | | zero_one // CFA
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| 312 | ;
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[51b73452] | 313 |
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| 314 | no_01_identifier:
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[4d51835] | 315 | IDENTIFIER
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| 316 | | ATTR_IDENTIFIER // CFA
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| 317 | ;
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[51b73452] | 318 |
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| 319 | no_attr_identifier:
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[4d51835] | 320 | IDENTIFIER
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| 321 | ;
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[51b73452] | 322 |
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[b87a5ed] | 323 | zero_one: // CFA
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[4d51835] | 324 | ZERO
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| 325 | | ONE
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| 326 | ;
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[51b73452] | 327 |
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[b87a5ed] | 328 | string_literal_list: // juxtaposed strings are concatenated
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[59db689] | 329 | STRINGliteral { $$ = new ConstantNode( ConstantNode::String, $1 ); }
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| 330 | | string_literal_list STRINGliteral { $$ = $1->appendstr( $2 ); }
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[4d51835] | 331 | ;
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[51b73452] | 332 |
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[c11e31c] | 333 | //************************* EXPRESSIONS ********************************
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[51b73452] | 334 |
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| 335 | primary_expression:
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[4d51835] | 336 | IDENTIFIER // typedef name cannot be used as a variable name
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[de62360d] | 337 | { $$ = new VarRefNode( $1 ); }
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[4d51835] | 338 | | zero_one
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[de62360d] | 339 | { $$ = new VarRefNode( $1 ); }
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[4d51835] | 340 | | '(' comma_expression ')'
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| 341 | { $$ = $2; }
|
---|
| 342 | | '(' compound_statement ')' // GCC, lambda expression
|
---|
[de62360d] | 343 | { $$ = new ValofExprNode( $2 ); }
|
---|
[4d51835] | 344 | ;
|
---|
[51b73452] | 345 |
|
---|
| 346 | postfix_expression:
|
---|
[4d51835] | 347 | primary_expression
|
---|
| 348 | | postfix_expression '[' push assignment_expression pop ']'
|
---|
[de62360d] | 349 | // CFA, comma_expression disallowed in the context because it results in a commom user error: subscripting a
|
---|
| 350 | // matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
|
---|
| 351 | // little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
|
---|
| 352 | // equivalent to the old x[i,j].
|
---|
| 353 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Index ), $1, $4 ); }
|
---|
[4d51835] | 354 | | postfix_expression '(' argument_expression_list ')'
|
---|
[de62360d] | 355 | { $$ = new CompositeExprNode( $1, $3 ); }
|
---|
[4d51835] | 356 | | postfix_expression '.' no_attr_identifier
|
---|
[de62360d] | 357 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::FieldSel ), $1, new VarRefNode( $3 )); }
|
---|
[4d51835] | 358 | | postfix_expression '.' '[' push field_list pop ']' // CFA, tuple field selector
|
---|
| 359 | | postfix_expression ARROW no_attr_identifier
|
---|
[de62360d] | 360 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::PFieldSel ), $1, new VarRefNode( $3 )); }
|
---|
[4d51835] | 361 | | postfix_expression ARROW '[' push field_list pop ']' // CFA, tuple field selector
|
---|
| 362 | | postfix_expression ICR
|
---|
[de62360d] | 363 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::IncrPost ), $1 ); }
|
---|
[4d51835] | 364 | | postfix_expression DECR
|
---|
[de62360d] | 365 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::DecrPost ), $1 ); }
|
---|
[4d51835] | 366 | // GCC has priority: cast_expression
|
---|
| 367 | | '(' type_name_no_function ')' '{' initializer_list comma_opt '}' // C99
|
---|
| 368 | { $$ = 0; }
|
---|
| 369 | ;
|
---|
[51b73452] | 370 |
|
---|
| 371 | argument_expression_list:
|
---|
[4d51835] | 372 | argument_expression
|
---|
| 373 | | argument_expression_list ',' argument_expression
|
---|
[de62360d] | 374 | { $$ = (ExpressionNode *)( $1->set_link( $3 )); }
|
---|
[4d51835] | 375 | ;
|
---|
[51b73452] | 376 |
|
---|
| 377 | argument_expression:
|
---|
[4d51835] | 378 | // empty
|
---|
| 379 | { $$ = 0; } // use default argument
|
---|
| 380 | | assignment_expression
|
---|
| 381 | | no_attr_identifier ':' assignment_expression
|
---|
[7f5566b] | 382 | { $$ = $3->set_argName( $1 ); }
|
---|
[2871210] | 383 | // Only a list of no_attr_identifier_or_type_name is allowed in this context. However, there is insufficient
|
---|
[de62360d] | 384 | // look ahead to distinguish between this list of parameter names and a tuple, so the tuple form must be used
|
---|
| 385 | // with an appropriate semantic check.
|
---|
[4d51835] | 386 | | '[' push assignment_expression pop ']' ':' assignment_expression
|
---|
[7f5566b] | 387 | { $$ = $7->set_argName( $3 ); }
|
---|
[4d51835] | 388 | | '[' push assignment_expression ',' tuple_expression_list pop ']' ':' assignment_expression
|
---|
[7f5566b] | 389 | { $$ = $9->set_argName( new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)$3->set_link( flattenCommas( $5 )))); }
|
---|
[4d51835] | 390 | ;
|
---|
[b87a5ed] | 391 |
|
---|
| 392 | field_list: // CFA, tuple field selector
|
---|
[4d51835] | 393 | field
|
---|
| 394 | | field_list ',' field { $$ = (ExpressionNode *)$1->set_link( $3 ); }
|
---|
| 395 | ;
|
---|
[b87a5ed] | 396 |
|
---|
| 397 | field: // CFA, tuple field selector
|
---|
[4d51835] | 398 | no_attr_identifier
|
---|
| 399 | { $$ = new VarRefNode( $1 ); }
|
---|
| 400 | | no_attr_identifier '.' field
|
---|
[de62360d] | 401 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::FieldSel ), new VarRefNode( $1 ), $3 ); }
|
---|
[4d51835] | 402 | | no_attr_identifier '.' '[' push field_list pop ']'
|
---|
[de62360d] | 403 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::FieldSel ), new VarRefNode( $1 ), $5 ); }
|
---|
[4d51835] | 404 | | no_attr_identifier ARROW field
|
---|
[de62360d] | 405 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::PFieldSel ), new VarRefNode( $1 ), $3 ); }
|
---|
[4d51835] | 406 | | no_attr_identifier ARROW '[' push field_list pop ']'
|
---|
[de62360d] | 407 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::PFieldSel ), new VarRefNode( $1 ), $5 ); }
|
---|
[4d51835] | 408 | ;
|
---|
[51b73452] | 409 |
|
---|
| 410 | unary_expression:
|
---|
[4d51835] | 411 | postfix_expression
|
---|
[51b1202] | 412 | // first location where constant/string can have operator applied: sizeof 3/sizeof "abc"
|
---|
| 413 | // still requires semantics checks, e.g., ++3, 3--, *3, &&3
|
---|
| 414 | | constant
|
---|
| 415 | { $$ = $1; }
|
---|
| 416 | | string_literal_list
|
---|
| 417 | { $$ = $1; }
|
---|
[4d51835] | 418 | | ICR unary_expression
|
---|
[de62360d] | 419 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Incr ), $2 ); }
|
---|
[4d51835] | 420 | | DECR unary_expression
|
---|
[de62360d] | 421 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Decr ), $2 ); }
|
---|
[4d51835] | 422 | | EXTENSION cast_expression // GCC
|
---|
| 423 | { $$ = $2; }
|
---|
| 424 | | unary_operator cast_expression
|
---|
[de62360d] | 425 | { $$ = new CompositeExprNode( $1, $2 ); }
|
---|
[4d51835] | 426 | | '!' cast_expression
|
---|
[de62360d] | 427 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Neg ), $2 ); }
|
---|
[4d51835] | 428 | | '*' cast_expression // CFA
|
---|
[de62360d] | 429 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::PointTo ), $2 ); }
|
---|
[4d51835] | 430 | // '*' is is separated from unary_operator because of shift/reduce conflict in:
|
---|
| 431 | // { * X; } // dereference X
|
---|
| 432 | // { * int X; } // CFA declaration of pointer to int
|
---|
| 433 | // '&' must be moved here if C++ reference variables are supported.
|
---|
| 434 | | SIZEOF unary_expression
|
---|
[de62360d] | 435 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::SizeOf ), $2 ); }
|
---|
[4d51835] | 436 | | SIZEOF '(' type_name_no_function ')'
|
---|
[de62360d] | 437 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::SizeOf ), new TypeValueNode( $3 )); }
|
---|
[4d51835] | 438 | | ATTR_IDENTIFIER
|
---|
[de62360d] | 439 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Attr ), new VarRefNode( $1 )); }
|
---|
[4d51835] | 440 | | ATTR_IDENTIFIER '(' type_name ')'
|
---|
[de62360d] | 441 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Attr ), new VarRefNode( $1 ), new TypeValueNode( $3 )); }
|
---|
[4d51835] | 442 | | ATTR_IDENTIFIER '(' argument_expression ')'
|
---|
[de62360d] | 443 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Attr ), new VarRefNode( $1 ), $3 ); }
|
---|
[4d51835] | 444 | | ALIGNOF unary_expression // GCC, variable alignment
|
---|
[de62360d] | 445 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::AlignOf ), $2 ); }
|
---|
[4d51835] | 446 | | ALIGNOF '(' type_name_no_function ')' // GCC, type alignment
|
---|
[de62360d] | 447 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::AlignOf ), new TypeValueNode( $3 )); }
|
---|
[4d51835] | 448 | | ANDAND no_attr_identifier // GCC, address of label
|
---|
[de62360d] | 449 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::LabelAddress ), new VarRefNode( $2, true )); }
|
---|
[4d51835] | 450 | ;
|
---|
[51b73452] | 451 |
|
---|
| 452 | unary_operator:
|
---|
[de62360d] | 453 | '&' { $$ = new OperatorNode( OperatorNode::AddressOf ); }
|
---|
| 454 | | '+' { $$ = new OperatorNode( OperatorNode::UnPlus ); }
|
---|
| 455 | | '-' { $$ = new OperatorNode( OperatorNode::UnMinus ); }
|
---|
| 456 | | '~' { $$ = new OperatorNode( OperatorNode::BitNeg ); }
|
---|
[4d51835] | 457 | ;
|
---|
[51b73452] | 458 |
|
---|
| 459 | cast_expression:
|
---|
[4d51835] | 460 | unary_expression
|
---|
| 461 | | '(' type_name_no_function ')' cast_expression
|
---|
[de62360d] | 462 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Cast ), new TypeValueNode( $2 ), $4 ); }
|
---|
[4d51835] | 463 | | '(' type_name_no_function ')' tuple
|
---|
[de62360d] | 464 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Cast ), new TypeValueNode( $2 ), $4 ); }
|
---|
[4d51835] | 465 | ;
|
---|
[51b73452] | 466 |
|
---|
| 467 | multiplicative_expression:
|
---|
[4d51835] | 468 | cast_expression
|
---|
| 469 | | multiplicative_expression '*' cast_expression
|
---|
[de62360d] | 470 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Mul ), $1, $3 ); }
|
---|
[4d51835] | 471 | | multiplicative_expression '/' cast_expression
|
---|
[de62360d] | 472 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Div ), $1, $3 ); }
|
---|
[4d51835] | 473 | | multiplicative_expression '%' cast_expression
|
---|
[de62360d] | 474 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Mod ), $1, $3 ); }
|
---|
[4d51835] | 475 | ;
|
---|
[51b73452] | 476 |
|
---|
| 477 | additive_expression:
|
---|
[4d51835] | 478 | multiplicative_expression
|
---|
| 479 | | additive_expression '+' multiplicative_expression
|
---|
[de62360d] | 480 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Plus ), $1, $3 ); }
|
---|
[4d51835] | 481 | | additive_expression '-' multiplicative_expression
|
---|
[de62360d] | 482 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Minus ), $1, $3 ); }
|
---|
[4d51835] | 483 | ;
|
---|
[51b73452] | 484 |
|
---|
| 485 | shift_expression:
|
---|
[4d51835] | 486 | additive_expression
|
---|
| 487 | | shift_expression LS additive_expression
|
---|
[de62360d] | 488 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::LShift ), $1, $3 ); }
|
---|
[4d51835] | 489 | | shift_expression RS additive_expression
|
---|
[de62360d] | 490 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::RShift ), $1, $3 ); }
|
---|
[4d51835] | 491 | ;
|
---|
[51b73452] | 492 |
|
---|
| 493 | relational_expression:
|
---|
[4d51835] | 494 | shift_expression
|
---|
| 495 | | relational_expression '<' shift_expression
|
---|
[de62360d] | 496 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::LThan ), $1, $3 ); }
|
---|
[4d51835] | 497 | | relational_expression '>' shift_expression
|
---|
[de62360d] | 498 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::GThan ), $1, $3 ); }
|
---|
[4d51835] | 499 | | relational_expression LE shift_expression
|
---|
[de62360d] | 500 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::LEThan ), $1, $3 ); }
|
---|
[4d51835] | 501 | | relational_expression GE shift_expression
|
---|
[de62360d] | 502 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::GEThan ), $1, $3 ); }
|
---|
[4d51835] | 503 | ;
|
---|
[51b73452] | 504 |
|
---|
| 505 | equality_expression:
|
---|
[4d51835] | 506 | relational_expression
|
---|
| 507 | | equality_expression EQ relational_expression
|
---|
[de62360d] | 508 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Eq ), $1, $3 ); }
|
---|
[4d51835] | 509 | | equality_expression NE relational_expression
|
---|
[de62360d] | 510 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Neq ), $1, $3 ); }
|
---|
[4d51835] | 511 | ;
|
---|
[51b73452] | 512 |
|
---|
| 513 | AND_expression:
|
---|
[4d51835] | 514 | equality_expression
|
---|
| 515 | | AND_expression '&' equality_expression
|
---|
[de62360d] | 516 | { $$ =new CompositeExprNode( new OperatorNode( OperatorNode::BitAnd ), $1, $3 ); }
|
---|
[4d51835] | 517 | ;
|
---|
[51b73452] | 518 |
|
---|
| 519 | exclusive_OR_expression:
|
---|
[4d51835] | 520 | AND_expression
|
---|
| 521 | | exclusive_OR_expression '^' AND_expression
|
---|
[de62360d] | 522 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Xor ), $1, $3 ); }
|
---|
[4d51835] | 523 | ;
|
---|
[51b73452] | 524 |
|
---|
| 525 | inclusive_OR_expression:
|
---|
[4d51835] | 526 | exclusive_OR_expression
|
---|
| 527 | | inclusive_OR_expression '|' exclusive_OR_expression
|
---|
[de62360d] | 528 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::BitOr ), $1, $3 ); }
|
---|
[4d51835] | 529 | ;
|
---|
[51b73452] | 530 |
|
---|
| 531 | logical_AND_expression:
|
---|
[4d51835] | 532 | inclusive_OR_expression
|
---|
| 533 | | logical_AND_expression ANDAND inclusive_OR_expression
|
---|
[de62360d] | 534 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::And ), $1, $3 ); }
|
---|
[4d51835] | 535 | ;
|
---|
[51b73452] | 536 |
|
---|
| 537 | logical_OR_expression:
|
---|
[4d51835] | 538 | logical_AND_expression
|
---|
| 539 | | logical_OR_expression OROR logical_AND_expression
|
---|
[de62360d] | 540 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Or ), $1, $3 ); }
|
---|
[4d51835] | 541 | ;
|
---|
[51b73452] | 542 |
|
---|
| 543 | conditional_expression:
|
---|
[4d51835] | 544 | logical_OR_expression
|
---|
| 545 | | logical_OR_expression '?' comma_expression ':' conditional_expression
|
---|
[de62360d] | 546 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Cond ), (ExpressionNode *)mkList( (*$1, *$3, *$5 ) ) ); }
|
---|
[4d51835] | 547 | | logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
|
---|
[de62360d] | 548 | { $$=new CompositeExprNode( new OperatorNode( OperatorNode::NCond ), $1, $4 ); }
|
---|
[4d51835] | 549 | | logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression
|
---|
[de62360d] | 550 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Cond ), (ExpressionNode *)mkList( (*$1, *$3, *$5 ) ) ); }
|
---|
[4d51835] | 551 | ;
|
---|
[51b73452] | 552 |
|
---|
| 553 | constant_expression:
|
---|
[4d51835] | 554 | conditional_expression
|
---|
| 555 | ;
|
---|
[51b73452] | 556 |
|
---|
| 557 | assignment_expression:
|
---|
[4d51835] | 558 | // CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
|
---|
| 559 | conditional_expression
|
---|
| 560 | | unary_expression '=' assignment_expression
|
---|
[de62360d] | 561 | { $$ =new CompositeExprNode( new OperatorNode( OperatorNode::Assign ), $1, $3 ); }
|
---|
[4d51835] | 562 | | unary_expression assignment_operator assignment_expression
|
---|
[de62360d] | 563 | { $$ =new CompositeExprNode( $2, $1, $3 ); }
|
---|
[4d51835] | 564 | | tuple assignment_opt // CFA, tuple expression
|
---|
[de62360d] | 565 | { $$ = ( $2 == 0 ) ? $1 : new CompositeExprNode( new OperatorNode( OperatorNode::Assign ), $1, $2 ); }
|
---|
[4d51835] | 566 | ;
|
---|
[51b73452] | 567 |
|
---|
| 568 | assignment_expression_opt:
|
---|
[4d51835] | 569 | // empty
|
---|
| 570 | { $$ = new NullExprNode; }
|
---|
| 571 | | assignment_expression
|
---|
| 572 | ;
|
---|
[b87a5ed] | 573 |
|
---|
| 574 | tuple: // CFA, tuple
|
---|
[de62360d] | 575 | // CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
|
---|
| 576 | // comma_expression in new_identifier_parameter_array and new_abstract_array
|
---|
[2871210] | 577 | '[' ']'
|
---|
[4d51835] | 578 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ) ); }
|
---|
| 579 | | '[' push assignment_expression pop ']'
|
---|
| 580 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), $3 ); }
|
---|
| 581 | | '[' push ',' tuple_expression_list pop ']'
|
---|
| 582 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)(new NullExprNode)->set_link( $4 ) ); }
|
---|
| 583 | | '[' push assignment_expression ',' tuple_expression_list pop ']'
|
---|
| 584 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)$3->set_link( flattenCommas( $5 ) ) ); }
|
---|
| 585 | ;
|
---|
[51b73452] | 586 |
|
---|
| 587 | tuple_expression_list:
|
---|
[4d51835] | 588 | assignment_expression_opt
|
---|
| 589 | | tuple_expression_list ',' assignment_expression_opt
|
---|
| 590 | { $$ = (ExpressionNode *)$1->set_link( $3 ); }
|
---|
| 591 | ;
|
---|
[51b73452] | 592 |
|
---|
| 593 | assignment_operator:
|
---|
[de62360d] | 594 | MULTassign { $$ = new OperatorNode( OperatorNode::MulAssn ); }
|
---|
| 595 | | DIVassign { $$ = new OperatorNode( OperatorNode::DivAssn ); }
|
---|
| 596 | | MODassign { $$ = new OperatorNode( OperatorNode::ModAssn ); }
|
---|
| 597 | | PLUSassign { $$ = new OperatorNode( OperatorNode::PlusAssn ); }
|
---|
| 598 | | MINUSassign { $$ = new OperatorNode( OperatorNode::MinusAssn ); }
|
---|
| 599 | | LSassign { $$ = new OperatorNode( OperatorNode::LSAssn ); }
|
---|
| 600 | | RSassign { $$ = new OperatorNode( OperatorNode::RSAssn ); }
|
---|
| 601 | | ANDassign { $$ = new OperatorNode( OperatorNode::AndAssn ); }
|
---|
| 602 | | ERassign { $$ = new OperatorNode( OperatorNode::ERAssn ); }
|
---|
| 603 | | ORassign { $$ = new OperatorNode( OperatorNode::OrAssn ); }
|
---|
[4d51835] | 604 | ;
|
---|
[51b73452] | 605 |
|
---|
| 606 | comma_expression:
|
---|
[4d51835] | 607 | assignment_expression
|
---|
[de62360d] | 608 | | comma_expression ',' assignment_expression // { $$ = (ExpressionNode *)$1->add_to_list( $3 ); }
|
---|
| 609 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Comma ), $1, $3 ); }
|
---|
[4d51835] | 610 | ;
|
---|
[51b73452] | 611 |
|
---|
| 612 | comma_expression_opt:
|
---|
[4d51835] | 613 | // empty
|
---|
| 614 | { $$ = 0; }
|
---|
| 615 | | comma_expression
|
---|
| 616 | ;
|
---|
[51b73452] | 617 |
|
---|
[c11e31c] | 618 | //*************************** STATEMENTS *******************************
|
---|
[51b73452] | 619 |
|
---|
| 620 | statement:
|
---|
[4d51835] | 621 | labeled_statement
|
---|
| 622 | | compound_statement
|
---|
| 623 | | expression_statement { $$ = $1; }
|
---|
| 624 | | selection_statement
|
---|
| 625 | | iteration_statement
|
---|
| 626 | | jump_statement
|
---|
| 627 | | exception_statement
|
---|
| 628 | | asm_statement
|
---|
| 629 | ;
|
---|
[51b73452] | 630 |
|
---|
| 631 | labeled_statement:
|
---|
[4d51835] | 632 | no_attr_identifier ':' attribute_list_opt statement
|
---|
[1db21619] | 633 | {
|
---|
| 634 | $$ = $4->add_label( $1 );
|
---|
| 635 | }
|
---|
[4d51835] | 636 | ;
|
---|
[51b73452] | 637 |
|
---|
| 638 | compound_statement:
|
---|
[4d51835] | 639 | '{' '}'
|
---|
| 640 | { $$ = new CompoundStmtNode( (StatementNode *)0 ); }
|
---|
| 641 | | '{'
|
---|
[de62360d] | 642 | // Two scopes are necessary because the block itself has a scope, but every declaration within the block also
|
---|
| 643 | // requires its own scope
|
---|
[4d51835] | 644 | push push
|
---|
[51b1202] | 645 | local_label_declaration_opt // GCC, local labels
|
---|
[4d51835] | 646 | block_item_list pop '}' // C99, intermix declarations and statements
|
---|
| 647 | { $$ = new CompoundStmtNode( $5 ); }
|
---|
| 648 | ;
|
---|
[b87a5ed] | 649 |
|
---|
| 650 | block_item_list: // C99
|
---|
[4d51835] | 651 | block_item
|
---|
| 652 | | block_item_list push block_item
|
---|
[de62360d] | 653 | { if ( $1 != 0 ) { $1->set_link( $3 ); $$ = $1; } }
|
---|
[4d51835] | 654 | ;
|
---|
[51b73452] | 655 |
|
---|
| 656 | block_item:
|
---|
[4d51835] | 657 | declaration // CFA, new & old style declarations
|
---|
| 658 | { $$ = new StatementNode( $1 ); }
|
---|
| 659 | | EXTENSION declaration // GCC
|
---|
| 660 | { $$ = new StatementNode( $2 ); }
|
---|
| 661 | | function_definition
|
---|
| 662 | { $$ = new StatementNode( $1 ); }
|
---|
| 663 | | statement pop
|
---|
| 664 | ;
|
---|
[51b73452] | 665 |
|
---|
| 666 | statement_list:
|
---|
[4d51835] | 667 | statement
|
---|
| 668 | | statement_list statement
|
---|
[de62360d] | 669 | { if ( $1 != 0 ) { $1->set_link( $2 ); $$ = $1; } }
|
---|
[4d51835] | 670 | ;
|
---|
[51b73452] | 671 |
|
---|
| 672 | expression_statement:
|
---|
[4d51835] | 673 | comma_expression_opt ';'
|
---|
[de62360d] | 674 | { $$ = new StatementNode( StatementNode::Exp, $1, 0 ); }
|
---|
[4d51835] | 675 | ;
|
---|
[51b73452] | 676 |
|
---|
| 677 | selection_statement:
|
---|
[4d51835] | 678 | IF '(' comma_expression ')' statement %prec THEN
|
---|
| 679 | // explicitly deal with the shift/reduce conflict on if/else
|
---|
[de62360d] | 680 | { $$ = new StatementNode( StatementNode::If, $3, $5 ); }
|
---|
[4d51835] | 681 | | IF '(' comma_expression ')' statement ELSE statement
|
---|
[de62360d] | 682 | { $$ = new StatementNode( StatementNode::If, $3, (StatementNode *)mkList((*$5, *$7 )) ); }
|
---|
[4d51835] | 683 | | SWITCH '(' comma_expression ')' case_clause // CFA
|
---|
[de62360d] | 684 | { $$ = new StatementNode( StatementNode::Switch, $3, $5 ); }
|
---|
[4d51835] | 685 | | SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
|
---|
[de62360d] | 686 | { $$ = new StatementNode( StatementNode::Switch, $3, $8 ); /* xxx */ }
|
---|
| 687 | // The semantics of the declaration list is changed to include any associated initialization, which is performed
|
---|
| 688 | // *before* the transfer to the appropriate case clause. Statements after the initial declaration list can
|
---|
| 689 | // never be executed, and therefore, are removed from the grammar even though C allows it.
|
---|
[4d51835] | 690 | | CHOOSE '(' comma_expression ')' case_clause // CFA
|
---|
[de62360d] | 691 | { $$ = new StatementNode( StatementNode::Choose, $3, $5 ); }
|
---|
[4d51835] | 692 | | CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA
|
---|
[de62360d] | 693 | { $$ = new StatementNode( StatementNode::Choose, $3, $8 ); }
|
---|
[4d51835] | 694 | ;
|
---|
[b87a5ed] | 695 |
|
---|
[de62360d] | 696 | // CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
|
---|
| 697 | // clause allows a list of values and subranges.
|
---|
[b87a5ed] | 698 |
|
---|
| 699 | case_value: // CFA
|
---|
[4d51835] | 700 | constant_expression { $$ = $1; }
|
---|
| 701 | | constant_expression ELLIPSIS constant_expression // GCC, subrange
|
---|
[de62360d] | 702 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Range ), $1, $3 ); }
|
---|
[4d51835] | 703 | | subrange // CFA, subrange
|
---|
| 704 | ;
|
---|
[b87a5ed] | 705 |
|
---|
| 706 | case_value_list: // CFA
|
---|
[4d51835] | 707 | case_value
|
---|
| 708 | | case_value_list ',' case_value
|
---|
[de62360d] | 709 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::TupleC ), (ExpressionNode *)(tupleContents( $1 ))->set_link( $3 ) ); }
|
---|
[4d51835] | 710 | ;
|
---|
[b87a5ed] | 711 |
|
---|
| 712 | case_label: // CFA
|
---|
[de62360d] | 713 | CASE case_value_list ':' { $$ = new StatementNode( StatementNode::Case, $2, 0 ); }
|
---|
| 714 | | DEFAULT ':' { $$ = new StatementNode( StatementNode::Default ); }
|
---|
[4d51835] | 715 | // A semantic check is required to ensure only one default clause per switch/choose statement.
|
---|
| 716 | ;
|
---|
[b87a5ed] | 717 |
|
---|
| 718 | case_label_list: // CFA
|
---|
[4d51835] | 719 | case_label
|
---|
[de62360d] | 720 | | case_label_list case_label { $$ = (StatementNode *)( $1->set_link( $2 )); }
|
---|
[4d51835] | 721 | ;
|
---|
[b87a5ed] | 722 |
|
---|
| 723 | case_clause: // CFA
|
---|
[de62360d] | 724 | case_label_list statement { $$ = $1->append_last_case( $2 ); }
|
---|
[4d51835] | 725 | ;
|
---|
[b87a5ed] | 726 |
|
---|
| 727 | switch_clause_list_opt: // CFA
|
---|
[4d51835] | 728 | // empty
|
---|
| 729 | { $$ = 0; }
|
---|
| 730 | | switch_clause_list
|
---|
| 731 | ;
|
---|
[b87a5ed] | 732 |
|
---|
| 733 | switch_clause_list: // CFA
|
---|
[4d51835] | 734 | case_label_list statement_list
|
---|
[de62360d] | 735 | { $$ = $1->append_last_case( $2 ); }
|
---|
[4d51835] | 736 | | switch_clause_list case_label_list statement_list
|
---|
[de62360d] | 737 | { $$ = (StatementNode *)( $1->set_link( $2->append_last_case( $3 ))); }
|
---|
[4d51835] | 738 | ;
|
---|
[b87a5ed] | 739 |
|
---|
| 740 | choose_clause_list_opt: // CFA
|
---|
[4d51835] | 741 | // empty
|
---|
| 742 | { $$ = 0; }
|
---|
| 743 | | choose_clause_list
|
---|
| 744 | ;
|
---|
[b87a5ed] | 745 |
|
---|
| 746 | choose_clause_list: // CFA
|
---|
[4d51835] | 747 | case_label_list fall_through
|
---|
[de62360d] | 748 | { $$ = $1->append_last_case( $2 ); }
|
---|
[4d51835] | 749 | | case_label_list statement_list fall_through_opt
|
---|
[de62360d] | 750 | { $$ = $1->append_last_case((StatementNode *)mkList((*$2,*$3 ))); }
|
---|
[4d51835] | 751 | | choose_clause_list case_label_list fall_through
|
---|
[de62360d] | 752 | { $$ = (StatementNode *)( $1->set_link( $2->append_last_case( $3 ))); }
|
---|
[4d51835] | 753 | | choose_clause_list case_label_list statement_list fall_through_opt
|
---|
[de62360d] | 754 | { $$ = (StatementNode *)( $1->set_link( $2->append_last_case((StatementNode *)mkList((*$3,*$4 ))))); }
|
---|
[4d51835] | 755 | ;
|
---|
[b87a5ed] | 756 |
|
---|
| 757 | fall_through_opt: // CFA
|
---|
[4d51835] | 758 | // empty
|
---|
| 759 | { $$ = 0; }
|
---|
| 760 | | fall_through
|
---|
| 761 | ;
|
---|
[b87a5ed] | 762 |
|
---|
| 763 | fall_through: // CFA
|
---|
[7f5566b] | 764 | FALLTHRU { $$ = new StatementNode( StatementNode::Fallthru ); }
|
---|
| 765 | | FALLTHRU ';' { $$ = new StatementNode( StatementNode::Fallthru ); }
|
---|
[4d51835] | 766 | ;
|
---|
[51b73452] | 767 |
|
---|
| 768 | iteration_statement:
|
---|
[4d51835] | 769 | WHILE '(' comma_expression ')' statement
|
---|
[de62360d] | 770 | { $$ = new StatementNode( StatementNode::While, $3, $5 ); }
|
---|
[4d51835] | 771 | | DO statement WHILE '(' comma_expression ')' ';'
|
---|
[de62360d] | 772 | { $$ = new StatementNode( StatementNode::Do, $5, $2 ); }
|
---|
[4d51835] | 773 | | FOR '(' push for_control_expression ')' statement
|
---|
[de62360d] | 774 | { $$ = new StatementNode( StatementNode::For, $4, $6 ); }
|
---|
[4d51835] | 775 | ;
|
---|
[51b73452] | 776 |
|
---|
| 777 | for_control_expression:
|
---|
[4d51835] | 778 | comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt
|
---|
[de62360d] | 779 | { $$ = new ForCtlExprNode( $1, $4, $6 ); }
|
---|
[4d51835] | 780 | | declaration comma_expression_opt ';' comma_expression_opt // C99
|
---|
[de62360d] | 781 | { $$ = new ForCtlExprNode( $1, $2, $4 ); }
|
---|
[4d51835] | 782 | ;
|
---|
[51b73452] | 783 |
|
---|
| 784 | jump_statement:
|
---|
[4d51835] | 785 | GOTO no_attr_identifier ';'
|
---|
[de62360d] | 786 | { $$ = new StatementNode( StatementNode::Goto, $2 ); }
|
---|
[4d51835] | 787 | | GOTO '*' comma_expression ';' // GCC, computed goto
|
---|
[de62360d] | 788 | // The syntax for the GCC computed goto violates normal expression precedence, e.g., goto *i+3; => goto *(i+3 );
|
---|
| 789 | // whereas normal operator precedence yields goto (*i)+3;
|
---|
| 790 | { $$ = new StatementNode( StatementNode::Goto, $3 ); }
|
---|
[4d51835] | 791 | | CONTINUE ';'
|
---|
[de62360d] | 792 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement.
|
---|
[7f5566b] | 793 | { $$ = new StatementNode( StatementNode::Continue ); }
|
---|
[4d51835] | 794 | | CONTINUE no_attr_identifier ';' // CFA, multi-level continue
|
---|
[de62360d] | 795 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
|
---|
| 796 | // the target of the transfer appears only at the start of an iteration statement.
|
---|
| 797 | { $$ = new StatementNode( StatementNode::Continue, $2 ); }
|
---|
[4d51835] | 798 | | BREAK ';'
|
---|
[de62360d] | 799 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement.
|
---|
[7f5566b] | 800 | { $$ = new StatementNode( StatementNode::Break ); }
|
---|
[4d51835] | 801 | | BREAK no_attr_identifier ';' // CFA, multi-level exit
|
---|
[de62360d] | 802 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
|
---|
| 803 | // the target of the transfer appears only at the start of an iteration statement.
|
---|
| 804 | { $$ = new StatementNode( StatementNode::Break, $2 ); }
|
---|
[4d51835] | 805 | | RETURN comma_expression_opt ';'
|
---|
[de62360d] | 806 | { $$ = new StatementNode( StatementNode::Return, $2, 0 ); }
|
---|
[4d51835] | 807 | | THROW assignment_expression ';'
|
---|
[de62360d] | 808 | { $$ = new StatementNode( StatementNode::Throw, $2, 0 ); }
|
---|
[4d51835] | 809 | | THROW ';'
|
---|
[7f5566b] | 810 | { $$ = new StatementNode( StatementNode::Throw ); }
|
---|
[4d51835] | 811 | ;
|
---|
[51b73452] | 812 |
|
---|
| 813 | exception_statement:
|
---|
[4d51835] | 814 | TRY compound_statement handler_list
|
---|
[de62360d] | 815 | { $$ = new StatementNode( StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3 )))); }
|
---|
[4d51835] | 816 | | TRY compound_statement finally_clause
|
---|
[de62360d] | 817 | { $$ = new StatementNode( StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3 )))); }
|
---|
[4d51835] | 818 | | TRY compound_statement handler_list finally_clause
|
---|
| 819 | {
|
---|
[de62360d] | 820 | $3->set_link( $4 );
|
---|
| 821 | $$ = new StatementNode( StatementNode::Try, 0,(StatementNode *)(mkList((*$2,*$3 ))));
|
---|
[4d51835] | 822 | }
|
---|
| 823 | ;
|
---|
[51b73452] | 824 |
|
---|
| 825 | handler_list:
|
---|
[4d51835] | 826 | // There must be at least one catch clause
|
---|
| 827 | handler_clause
|
---|
[de62360d] | 828 | // ISO/IEC 9899:1999 Section 15.3(6 ) If present, a "..." handler shall be the last handler for its try block.
|
---|
[4d51835] | 829 | | CATCH '(' ELLIPSIS ')' compound_statement
|
---|
| 830 | { $$ = StatementNode::newCatchStmt( 0, $5, true ); }
|
---|
| 831 | | handler_clause CATCH '(' ELLIPSIS ')' compound_statement
|
---|
| 832 | { $$ = $1->set_link( StatementNode::newCatchStmt( 0, $6, true ) ); }
|
---|
| 833 | ;
|
---|
[51b73452] | 834 |
|
---|
| 835 | handler_clause:
|
---|
[4d51835] | 836 | CATCH '(' push push exception_declaration pop ')' compound_statement pop
|
---|
[de62360d] | 837 | { $$ = StatementNode::newCatchStmt( $5, $8 ); }
|
---|
[4d51835] | 838 | | handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop
|
---|
[de62360d] | 839 | { $$ = $1->set_link( StatementNode::newCatchStmt( $6, $9 ) ); }
|
---|
[4d51835] | 840 | ;
|
---|
[51b73452] | 841 |
|
---|
| 842 | finally_clause:
|
---|
[4d51835] | 843 | FINALLY compound_statement
|
---|
| 844 | {
|
---|
[de62360d] | 845 | $$ = new StatementNode( StatementNode::Finally, 0, $2 );
|
---|
[4d51835] | 846 | std::cout << "Just created a finally node" << std::endl;
|
---|
| 847 | }
|
---|
| 848 | ;
|
---|
[51b73452] | 849 |
|
---|
| 850 | exception_declaration:
|
---|
[4d51835] | 851 | // A semantic check is required to ensure type_specifier does not create a new type, e.g.:
|
---|
| 852 | //
|
---|
| 853 | // catch ( struct { int i; } x ) ...
|
---|
| 854 | //
|
---|
| 855 | // This new type cannot catch any thrown type because of name equivalence among types.
|
---|
| 856 | type_specifier
|
---|
| 857 | | type_specifier declarator
|
---|
| 858 | {
|
---|
| 859 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 860 | $$ = $2->addType( $1 );
|
---|
| 861 | }
|
---|
| 862 | | type_specifier variable_abstract_declarator
|
---|
| 863 | { $$ = $2->addType( $1 ); }
|
---|
| 864 | | new_abstract_declarator_tuple no_attr_identifier // CFA
|
---|
| 865 | {
|
---|
| 866 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 867 | $$ = $1->addName( $2 );
|
---|
| 868 | }
|
---|
| 869 | | new_abstract_declarator_tuple // CFA
|
---|
| 870 | ;
|
---|
[51b73452] | 871 |
|
---|
| 872 | asm_statement:
|
---|
[7f5566b] | 873 | ASM asm_volatile_opt '(' string_literal_list ')' ';'
|
---|
| 874 | { $$ = new AsmStmtNode( StatementNode::Asm, $2, $4, 0 ); }
|
---|
| 875 | | ASM asm_volatile_opt '(' string_literal_list ':' asm_operands_opt ')' ';' // remaining GCC
|
---|
| 876 | { $$ = new AsmStmtNode( StatementNode::Asm, $2, $4, $6 ); }
|
---|
| 877 | | ASM asm_volatile_opt '(' string_literal_list ':' asm_operands_opt ':' asm_operands_opt ')' ';'
|
---|
| 878 | { $$ = new AsmStmtNode( StatementNode::Asm, $2, $4, $6, $8 ); }
|
---|
| 879 | | ASM asm_volatile_opt '(' string_literal_list ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
|
---|
| 880 | { $$ = new AsmStmtNode( StatementNode::Asm, $2, $4, $6, $8, $10 ); }
|
---|
| 881 | | ASM asm_volatile_opt GOTO '(' string_literal_list ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
|
---|
| 882 | { $$ = new AsmStmtNode( StatementNode::Asm, $2, $5, 0, $8, $10, $12 ); }
|
---|
| 883 | ;
|
---|
| 884 |
|
---|
| 885 | asm_volatile_opt: // GCC
|
---|
| 886 | // empty
|
---|
| 887 | { $$ = false; }
|
---|
| 888 | | VOLATILE
|
---|
| 889 | { $$ = true; }
|
---|
[4d51835] | 890 | ;
|
---|
[b87a5ed] | 891 |
|
---|
| 892 | asm_operands_opt: // GCC
|
---|
[4d51835] | 893 | // empty
|
---|
[7f5566b] | 894 | { $$ = 0; } // use default argument
|
---|
[4d51835] | 895 | | asm_operands_list
|
---|
| 896 | ;
|
---|
[b87a5ed] | 897 |
|
---|
| 898 | asm_operands_list: // GCC
|
---|
[4d51835] | 899 | asm_operand
|
---|
| 900 | | asm_operands_list ',' asm_operand
|
---|
[7f5566b] | 901 | { $$ = (ExpressionNode *)$1->set_link( $3 ); }
|
---|
[4d51835] | 902 | ;
|
---|
[b87a5ed] | 903 |
|
---|
| 904 | asm_operand: // GCC
|
---|
[7f5566b] | 905 | string_literal_list '(' constant_expression ')'
|
---|
| 906 | { $$ = new AsmExprNode( 0, $1, $3 ); }
|
---|
| 907 | | '[' constant_expression ']' string_literal_list '(' constant_expression ')'
|
---|
| 908 | { $$ = new AsmExprNode( $2, $4, $6 ); }
|
---|
| 909 | ;
|
---|
| 910 |
|
---|
| 911 | asm_clobbers_list_opt: // GCC
|
---|
| 912 | // empty
|
---|
| 913 | { $$ = 0; } // use default argument
|
---|
| 914 | | string_literal_list
|
---|
| 915 | { $$ = $1; }
|
---|
| 916 | | asm_clobbers_list_opt ',' string_literal_list
|
---|
| 917 | { $$ = (ConstantNode *)$1->set_link( $3 ); }
|
---|
[4d51835] | 918 | ;
|
---|
[b87a5ed] | 919 |
|
---|
[7f5566b] | 920 | label_list:
|
---|
| 921 | no_attr_identifier
|
---|
| 922 | { $$ = new LabelNode(); $$->append_label( $1 ); }
|
---|
| 923 | | label_list ',' no_attr_identifier
|
---|
| 924 | { $$ = $1; $1->append_label( $3 ); }
|
---|
[4d51835] | 925 | ;
|
---|
[51b73452] | 926 |
|
---|
[c11e31c] | 927 | //******************************* DECLARATIONS *********************************
|
---|
[51b73452] | 928 |
|
---|
[b87a5ed] | 929 | declaration_list_opt: // used at beginning of switch statement
|
---|
[4d51835] | 930 | pop
|
---|
| 931 | { $$ = 0; }
|
---|
| 932 | | declaration_list
|
---|
| 933 | ;
|
---|
[51b73452] | 934 |
|
---|
| 935 | declaration_list:
|
---|
[4d51835] | 936 | declaration
|
---|
| 937 | | declaration_list push declaration
|
---|
| 938 | { $$ = $1->appendList( $3 ); }
|
---|
| 939 | ;
|
---|
[51b73452] | 940 |
|
---|
[b87a5ed] | 941 | old_declaration_list_opt: // used to declare parameter types in K&R style functions
|
---|
[4d51835] | 942 | pop
|
---|
| 943 | { $$ = 0; }
|
---|
| 944 | | old_declaration_list
|
---|
| 945 | ;
|
---|
[51b73452] | 946 |
|
---|
| 947 | old_declaration_list:
|
---|
[4d51835] | 948 | old_declaration
|
---|
| 949 | | old_declaration_list push old_declaration
|
---|
| 950 | { $$ = $1->appendList( $3 ); }
|
---|
| 951 | ;
|
---|
[b87a5ed] | 952 |
|
---|
[51b1202] | 953 | local_label_declaration_opt: // GCC, local label
|
---|
[4d51835] | 954 | // empty
|
---|
[51b1202] | 955 | | local_label_declaration_list
|
---|
[4d51835] | 956 | ;
|
---|
[b87a5ed] | 957 |
|
---|
[51b1202] | 958 | local_label_declaration_list: // GCC, local label
|
---|
| 959 | LABEL local_label_list ';'
|
---|
| 960 | | local_label_declaration_list LABEL local_label_list ';'
|
---|
[4d51835] | 961 | ;
|
---|
[b87a5ed] | 962 |
|
---|
[51b1202] | 963 | local_label_list: // GCC, local label
|
---|
[7f5566b] | 964 | no_attr_identifier_or_type_name {}
|
---|
[51b1202] | 965 | | local_label_list ',' no_attr_identifier_or_type_name {}
|
---|
[4d51835] | 966 | ;
|
---|
[b87a5ed] | 967 |
|
---|
| 968 | declaration: // CFA, new & old style declarations
|
---|
[4d51835] | 969 | new_declaration
|
---|
| 970 | | old_declaration
|
---|
| 971 | ;
|
---|
[b87a5ed] | 972 |
|
---|
[de62360d] | 973 | // C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
|
---|
| 974 | // declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
|
---|
| 975 | // the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
|
---|
| 976 | // modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
|
---|
| 977 | // the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
|
---|
| 978 | // block, but cannot be mixed within a specific declaration.
|
---|
[c11e31c] | 979 | //
|
---|
[b87a5ed] | 980 | // CFA C
|
---|
| 981 | // [10] int x; int x[10]; // array of 10 integers
|
---|
| 982 | // [10] * char y; char *y[10]; // array of 10 pointers to char
|
---|
| 983 |
|
---|
| 984 | new_declaration: // CFA
|
---|
[4d51835] | 985 | new_variable_declaration pop ';'
|
---|
| 986 | | new_typedef_declaration pop ';'
|
---|
| 987 | | new_function_declaration pop ';'
|
---|
| 988 | | type_declaring_list pop ';'
|
---|
| 989 | | context_specifier pop ';'
|
---|
| 990 | ;
|
---|
[b87a5ed] | 991 |
|
---|
| 992 | new_variable_declaration: // CFA
|
---|
[4d51835] | 993 | new_variable_specifier initializer_opt
|
---|
| 994 | {
|
---|
| 995 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 996 | $$ = $1;
|
---|
| 997 | }
|
---|
| 998 | | declaration_qualifier_list new_variable_specifier initializer_opt
|
---|
[de62360d] | 999 | // declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
|
---|
| 1000 | // them as a type_qualifier cannot appear in that context.
|
---|
[4d51835] | 1001 | {
|
---|
| 1002 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1003 | $$ = $2->addQualifiers( $1 );
|
---|
| 1004 | }
|
---|
[2871210] | 1005 | | new_variable_declaration pop ',' push identifier_or_type_name initializer_opt
|
---|
[4d51835] | 1006 | {
|
---|
| 1007 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
|
---|
| 1008 | $$ = $1->appendList( $1->cloneType( $5 ) );
|
---|
| 1009 | }
|
---|
| 1010 | ;
|
---|
[b87a5ed] | 1011 |
|
---|
| 1012 | new_variable_specifier: // CFA
|
---|
[de62360d] | 1013 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
|
---|
| 1014 | // storage-class
|
---|
[2871210] | 1015 | new_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
|
---|
[4d51835] | 1016 | {
|
---|
| 1017 | typedefTable.setNextIdentifier( *$2 );
|
---|
| 1018 | $$ = $1->addName( $2 );
|
---|
| 1019 | }
|
---|
[2871210] | 1020 | | new_abstract_tuple identifier_or_type_name asm_name_opt
|
---|
[4d51835] | 1021 | {
|
---|
| 1022 | typedefTable.setNextIdentifier( *$2 );
|
---|
| 1023 | $$ = $1->addName( $2 );
|
---|
| 1024 | }
|
---|
[2871210] | 1025 | | type_qualifier_list new_abstract_tuple identifier_or_type_name asm_name_opt
|
---|
[4d51835] | 1026 | {
|
---|
| 1027 | typedefTable.setNextIdentifier( *$3 );
|
---|
| 1028 | $$ = $2->addQualifiers( $1 )->addName( $3 );
|
---|
| 1029 | }
|
---|
| 1030 | ;
|
---|
[b87a5ed] | 1031 |
|
---|
| 1032 | new_function_declaration: // CFA
|
---|
[4d51835] | 1033 | new_function_specifier
|
---|
| 1034 | {
|
---|
| 1035 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1036 | $$ = $1;
|
---|
| 1037 | }
|
---|
| 1038 | | type_qualifier_list new_function_specifier
|
---|
| 1039 | {
|
---|
| 1040 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1041 | $$ = $2->addQualifiers( $1 );
|
---|
| 1042 | }
|
---|
| 1043 | | declaration_qualifier_list new_function_specifier
|
---|
| 1044 | {
|
---|
| 1045 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1046 | $$ = $2->addQualifiers( $1 );
|
---|
| 1047 | }
|
---|
| 1048 | | declaration_qualifier_list type_qualifier_list new_function_specifier
|
---|
| 1049 | {
|
---|
| 1050 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1051 | $$ = $3->addQualifiers( $1 )->addQualifiers( $2 );
|
---|
| 1052 | }
|
---|
[2871210] | 1053 | | new_function_declaration pop ',' push identifier_or_type_name
|
---|
[4d51835] | 1054 | {
|
---|
| 1055 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
|
---|
| 1056 | $$ = $1->appendList( $1->cloneType( $5 ) );
|
---|
| 1057 | }
|
---|
| 1058 | ;
|
---|
[b87a5ed] | 1059 |
|
---|
| 1060 | new_function_specifier: // CFA
|
---|
[2871210] | 1061 | '[' ']' identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' // S/R conflict
|
---|
[4d51835] | 1062 | {
|
---|
[2871210] | 1063 | $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
|
---|
[4d51835] | 1064 | }
|
---|
[2871210] | 1065 | // '[' ']' identifier '(' push new_parameter_type_list_opt pop ')'
|
---|
| 1066 | // {
|
---|
| 1067 | // typedefTable.setNextIdentifier( *$5 );
|
---|
| 1068 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
|
---|
| 1069 | // }
|
---|
| 1070 | // | '[' ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')'
|
---|
| 1071 | // {
|
---|
| 1072 | // typedefTable.setNextIdentifier( *$5 );
|
---|
| 1073 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
|
---|
| 1074 | // }
|
---|
| 1075 | // | '[' ']' typegen_name
|
---|
| 1076 | // identifier_or_type_name must be broken apart because of the sequence:
|
---|
[4d51835] | 1077 | //
|
---|
[2871210] | 1078 | // '[' ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
|
---|
[4d51835] | 1079 | // '[' ']' type_specifier
|
---|
| 1080 | //
|
---|
[2871210] | 1081 | // type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
|
---|
| 1082 | // flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
|
---|
| 1083 | | new_abstract_tuple identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
|
---|
[de62360d] | 1084 | // To obtain LR(1 ), this rule must be factored out from function return type (see new_abstract_declarator).
|
---|
[4d51835] | 1085 | {
|
---|
| 1086 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
|
---|
| 1087 | }
|
---|
[2871210] | 1088 | | new_function_return identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
|
---|
[4d51835] | 1089 | {
|
---|
| 1090 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
|
---|
| 1091 | }
|
---|
| 1092 | ;
|
---|
[b87a5ed] | 1093 |
|
---|
| 1094 | new_function_return: // CFA
|
---|
[4d51835] | 1095 | '[' push new_parameter_list pop ']'
|
---|
| 1096 | { $$ = DeclarationNode::newTuple( $3 ); }
|
---|
| 1097 | | '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']'
|
---|
[de62360d] | 1098 | // To obtain LR(1 ), the last new_abstract_parameter_list is added into this flattened rule to lookahead to the
|
---|
| 1099 | // ']'.
|
---|
[4d51835] | 1100 | { $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
|
---|
| 1101 | ;
|
---|
[b87a5ed] | 1102 |
|
---|
| 1103 | new_typedef_declaration: // CFA
|
---|
[4d51835] | 1104 | TYPEDEF new_variable_specifier
|
---|
| 1105 | {
|
---|
[de62360d] | 1106 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1107 | $$ = $2->addTypedef();
|
---|
| 1108 | }
|
---|
| 1109 | | TYPEDEF new_function_specifier
|
---|
| 1110 | {
|
---|
[de62360d] | 1111 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1112 | $$ = $2->addTypedef();
|
---|
| 1113 | }
|
---|
| 1114 | | new_typedef_declaration pop ',' push no_attr_identifier
|
---|
| 1115 | {
|
---|
[de62360d] | 1116 | typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
|
---|
[4d51835] | 1117 | $$ = $1->appendList( $1->cloneType( $5 ) );
|
---|
| 1118 | }
|
---|
| 1119 | ;
|
---|
[b87a5ed] | 1120 |
|
---|
[de62360d] | 1121 | // Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
|
---|
| 1122 | // a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
|
---|
[51b73452] | 1123 |
|
---|
| 1124 | typedef_declaration:
|
---|
[4d51835] | 1125 | TYPEDEF type_specifier declarator
|
---|
| 1126 | {
|
---|
[de62360d] | 1127 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1128 | $$ = $3->addType( $2 )->addTypedef();
|
---|
| 1129 | }
|
---|
| 1130 | | typedef_declaration pop ',' push declarator
|
---|
| 1131 | {
|
---|
[de62360d] | 1132 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1133 | $$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
|
---|
| 1134 | }
|
---|
[de62360d] | 1135 | | type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
|
---|
[4d51835] | 1136 | {
|
---|
[de62360d] | 1137 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1138 | $$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
|
---|
| 1139 | }
|
---|
| 1140 | | type_specifier TYPEDEF declarator
|
---|
| 1141 | {
|
---|
[de62360d] | 1142 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
[4d51835] | 1143 | $$ = $3->addType( $1 )->addTypedef();
|
---|
| 1144 | }
|
---|
| 1145 | | type_specifier TYPEDEF type_qualifier_list declarator
|
---|
| 1146 | {
|
---|
[de62360d] | 1147 | typedefTable.addToEnclosingScope( TypedefTable::TD );
|
---|
| 1148 | $$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
|
---|
[4d51835] | 1149 | }
|
---|
| 1150 | ;
|
---|
[b87a5ed] | 1151 |
|
---|
[721f17a] | 1152 | typedef_expression:
|
---|
| 1153 | // GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
|
---|
[4d51835] | 1154 | TYPEDEF no_attr_identifier '=' assignment_expression
|
---|
| 1155 | {
|
---|
[de62360d] | 1156 | typedefTable.addToEnclosingScope( *$2, TypedefTable::TD );
|
---|
[4d51835] | 1157 | $$ = DeclarationNode::newName( 0 ); // XXX
|
---|
| 1158 | }
|
---|
| 1159 | | typedef_expression pop ',' push no_attr_identifier '=' assignment_expression
|
---|
| 1160 | {
|
---|
[de62360d] | 1161 | typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
|
---|
[4d51835] | 1162 | $$ = DeclarationNode::newName( 0 ); // XXX
|
---|
| 1163 | }
|
---|
| 1164 | ;
|
---|
[51b73452] | 1165 |
|
---|
| 1166 | old_declaration:
|
---|
[4d51835] | 1167 | declaring_list pop ';'
|
---|
| 1168 | | typedef_declaration pop ';'
|
---|
| 1169 | | typedef_expression pop ';' // GCC, naming expression type
|
---|
| 1170 | | sue_declaration_specifier pop ';'
|
---|
| 1171 | ;
|
---|
[51b73452] | 1172 |
|
---|
| 1173 | declaring_list:
|
---|
[de62360d] | 1174 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
|
---|
| 1175 | // storage-class
|
---|
[4d51835] | 1176 | declaration_specifier declarator asm_name_opt initializer_opt
|
---|
| 1177 | {
|
---|
| 1178 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
[de62360d] | 1179 | $$ = ( $2->addType( $1 ))->addInitializer( $4 );
|
---|
[4d51835] | 1180 | }
|
---|
| 1181 | | declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
|
---|
| 1182 | {
|
---|
| 1183 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
[de62360d] | 1184 | $$ = $1->appendList( $1->cloneBaseType( $4->addInitializer( $6 ) ) );
|
---|
[4d51835] | 1185 | }
|
---|
| 1186 | ;
|
---|
[b87a5ed] | 1187 |
|
---|
| 1188 | declaration_specifier: // type specifier + storage class
|
---|
[4d51835] | 1189 | basic_declaration_specifier
|
---|
| 1190 | | sue_declaration_specifier
|
---|
| 1191 | | typedef_declaration_specifier
|
---|
| 1192 | | typegen_declaration_specifier
|
---|
| 1193 | ;
|
---|
[b87a5ed] | 1194 |
|
---|
| 1195 | type_specifier: // declaration specifier - storage class
|
---|
[4d51835] | 1196 | basic_type_specifier
|
---|
| 1197 | | sue_type_specifier
|
---|
| 1198 | | typedef_type_specifier
|
---|
| 1199 | | typegen_type_specifier
|
---|
| 1200 | ;
|
---|
[b87a5ed] | 1201 |
|
---|
| 1202 | type_qualifier_list_opt: // GCC, used in asm_statement
|
---|
[4d51835] | 1203 | // empty
|
---|
| 1204 | { $$ = 0; }
|
---|
| 1205 | | type_qualifier_list
|
---|
| 1206 | ;
|
---|
[51b73452] | 1207 |
|
---|
| 1208 | type_qualifier_list:
|
---|
[de62360d] | 1209 | // A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
|
---|
[4d51835] | 1210 | //
|
---|
[de62360d] | 1211 | // ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
|
---|
| 1212 | // specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
|
---|
| 1213 | // appeared only once.
|
---|
[4d51835] | 1214 | type_qualifier
|
---|
| 1215 | | type_qualifier_list type_qualifier
|
---|
| 1216 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1217 | ;
|
---|
[51b73452] | 1218 |
|
---|
| 1219 | type_qualifier:
|
---|
[4d51835] | 1220 | type_qualifier_name
|
---|
| 1221 | | attribute
|
---|
[1db21619] | 1222 | //{ $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
|
---|
[4d51835] | 1223 | ;
|
---|
[51b73452] | 1224 |
|
---|
| 1225 | type_qualifier_name:
|
---|
[4d51835] | 1226 | CONST
|
---|
| 1227 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); }
|
---|
| 1228 | | RESTRICT
|
---|
| 1229 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); }
|
---|
| 1230 | | VOLATILE
|
---|
| 1231 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); }
|
---|
| 1232 | | LVALUE // CFA
|
---|
| 1233 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); }
|
---|
| 1234 | | ATOMIC
|
---|
| 1235 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); }
|
---|
| 1236 | | FORALL '('
|
---|
| 1237 | {
|
---|
| 1238 | typedefTable.enterScope();
|
---|
| 1239 | }
|
---|
| 1240 | type_parameter_list ')' // CFA
|
---|
| 1241 | {
|
---|
| 1242 | typedefTable.leaveScope();
|
---|
| 1243 | $$ = DeclarationNode::newForall( $4 );
|
---|
| 1244 | }
|
---|
| 1245 | ;
|
---|
[51b73452] | 1246 |
|
---|
| 1247 | declaration_qualifier_list:
|
---|
[4d51835] | 1248 | storage_class_list
|
---|
[de62360d] | 1249 | | type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
|
---|
[4d51835] | 1250 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1251 | | declaration_qualifier_list type_qualifier_list storage_class_list
|
---|
| 1252 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
|
---|
| 1253 | ;
|
---|
[51b73452] | 1254 |
|
---|
| 1255 | storage_class_list:
|
---|
[de62360d] | 1256 | // A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
|
---|
| 1257 | // only one of each is specified, except for inline, which can appear with the others.
|
---|
[4d51835] | 1258 | //
|
---|
[de62360d] | 1259 | // ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
|
---|
| 1260 | // specifiers in a declaration.
|
---|
[4d51835] | 1261 | storage_class
|
---|
| 1262 | | storage_class_list storage_class
|
---|
| 1263 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1264 | ;
|
---|
[51b73452] | 1265 |
|
---|
| 1266 | storage_class:
|
---|
[4d51835] | 1267 | storage_class_name
|
---|
| 1268 | ;
|
---|
[51b73452] | 1269 |
|
---|
| 1270 | storage_class_name:
|
---|
[4d51835] | 1271 | EXTERN
|
---|
| 1272 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); }
|
---|
| 1273 | | STATIC
|
---|
| 1274 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); }
|
---|
| 1275 | | AUTO
|
---|
| 1276 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); }
|
---|
| 1277 | | REGISTER
|
---|
| 1278 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); }
|
---|
| 1279 | | INLINE // C99
|
---|
| 1280 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); }
|
---|
| 1281 | | FORTRAN // C99
|
---|
| 1282 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); }
|
---|
[68cd1ce] | 1283 | | NORETURN // C11
|
---|
| 1284 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Noreturn ); }
|
---|
| 1285 | | THREADLOCAL // C11
|
---|
| 1286 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Threadlocal ); }
|
---|
[4d51835] | 1287 | ;
|
---|
[51b73452] | 1288 |
|
---|
| 1289 | basic_type_name:
|
---|
[4d51835] | 1290 | CHAR
|
---|
| 1291 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
|
---|
| 1292 | | DOUBLE
|
---|
| 1293 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
|
---|
| 1294 | | FLOAT
|
---|
| 1295 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
|
---|
| 1296 | | INT
|
---|
| 1297 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
|
---|
| 1298 | | LONG
|
---|
| 1299 | { $$ = DeclarationNode::newModifier( DeclarationNode::Long ); }
|
---|
| 1300 | | SHORT
|
---|
| 1301 | { $$ = DeclarationNode::newModifier( DeclarationNode::Short ); }
|
---|
| 1302 | | SIGNED
|
---|
| 1303 | { $$ = DeclarationNode::newModifier( DeclarationNode::Signed ); }
|
---|
| 1304 | | UNSIGNED
|
---|
| 1305 | { $$ = DeclarationNode::newModifier( DeclarationNode::Unsigned ); }
|
---|
| 1306 | | VOID
|
---|
| 1307 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
|
---|
| 1308 | | BOOL // C99
|
---|
| 1309 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
|
---|
| 1310 | | COMPLEX // C99
|
---|
| 1311 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Complex ); }
|
---|
| 1312 | | IMAGINARY // C99
|
---|
| 1313 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Imaginary ); }
|
---|
| 1314 | ;
|
---|
[51b73452] | 1315 |
|
---|
| 1316 | basic_declaration_specifier:
|
---|
[4d51835] | 1317 | // A semantic check is necessary for conflicting storage classes.
|
---|
| 1318 | basic_type_specifier
|
---|
| 1319 | | declaration_qualifier_list basic_type_specifier
|
---|
| 1320 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1321 | | basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
|
---|
| 1322 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1323 | | basic_declaration_specifier storage_class type_qualifier_list
|
---|
| 1324 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
|
---|
| 1325 | | basic_declaration_specifier storage_class basic_type_specifier
|
---|
| 1326 | { $$ = $3->addQualifiers( $2 )->addType( $1 ); }
|
---|
| 1327 | ;
|
---|
[51b73452] | 1328 |
|
---|
| 1329 | basic_type_specifier:
|
---|
[4d51835] | 1330 | direct_type_name
|
---|
| 1331 | | type_qualifier_list_opt indirect_type_name type_qualifier_list_opt
|
---|
| 1332 | { $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
|
---|
| 1333 | ;
|
---|
[51b73452] | 1334 |
|
---|
| 1335 | direct_type_name:
|
---|
[4d51835] | 1336 | // A semantic check is necessary for conflicting type qualifiers.
|
---|
| 1337 | basic_type_name
|
---|
| 1338 | | type_qualifier_list basic_type_name
|
---|
| 1339 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1340 | | direct_type_name type_qualifier
|
---|
| 1341 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1342 | | direct_type_name basic_type_name
|
---|
| 1343 | { $$ = $1->addType( $2 ); }
|
---|
| 1344 | ;
|
---|
[51b73452] | 1345 |
|
---|
| 1346 | indirect_type_name:
|
---|
[4d51835] | 1347 | TYPEOF '(' type_name ')' // GCC: typeof(x) y;
|
---|
| 1348 | { $$ = $3; }
|
---|
| 1349 | | TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y;
|
---|
| 1350 | { $$ = DeclarationNode::newTypeof( $3 ); }
|
---|
| 1351 | | ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y;
|
---|
| 1352 | { $$ = DeclarationNode::newAttr( $1, $3 ); }
|
---|
| 1353 | | ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y;
|
---|
| 1354 | { $$ = DeclarationNode::newAttr( $1, $3 ); }
|
---|
| 1355 | ;
|
---|
[51b73452] | 1356 |
|
---|
| 1357 | sue_declaration_specifier:
|
---|
[4d51835] | 1358 | sue_type_specifier
|
---|
| 1359 | | declaration_qualifier_list sue_type_specifier
|
---|
| 1360 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1361 | | sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
|
---|
| 1362 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1363 | | sue_declaration_specifier storage_class type_qualifier_list
|
---|
| 1364 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
|
---|
| 1365 | ;
|
---|
[51b73452] | 1366 |
|
---|
| 1367 | sue_type_specifier:
|
---|
[4d51835] | 1368 | elaborated_type_name // struct, union, enum
|
---|
| 1369 | | type_qualifier_list elaborated_type_name
|
---|
| 1370 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1371 | | sue_type_specifier type_qualifier
|
---|
| 1372 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1373 | ;
|
---|
[51b73452] | 1374 |
|
---|
| 1375 | typedef_declaration_specifier:
|
---|
[4d51835] | 1376 | typedef_type_specifier
|
---|
| 1377 | | declaration_qualifier_list typedef_type_specifier
|
---|
| 1378 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1379 | | typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
|
---|
| 1380 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1381 | | typedef_declaration_specifier storage_class type_qualifier_list
|
---|
| 1382 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
|
---|
| 1383 | ;
|
---|
[b87a5ed] | 1384 |
|
---|
| 1385 | typedef_type_specifier: // typedef types
|
---|
[4d51835] | 1386 | TYPEDEFname
|
---|
| 1387 | { $$ = DeclarationNode::newFromTypedef( $1 ); }
|
---|
| 1388 | | type_qualifier_list TYPEDEFname
|
---|
| 1389 | { $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); }
|
---|
| 1390 | | typedef_type_specifier type_qualifier
|
---|
| 1391 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1392 | ;
|
---|
[51b73452] | 1393 |
|
---|
| 1394 | elaborated_type_name:
|
---|
[4d51835] | 1395 | aggregate_name
|
---|
| 1396 | | enum_name
|
---|
| 1397 | ;
|
---|
[51b73452] | 1398 |
|
---|
| 1399 | aggregate_name:
|
---|
[4d51835] | 1400 | aggregate_key '{' field_declaration_list '}'
|
---|
[721f17a] | 1401 | { $$ = DeclarationNode::newAggregate( $1, 0, 0, $3 ); }
|
---|
[2871210] | 1402 | | aggregate_key no_attr_identifier_or_type_name
|
---|
[721f17a] | 1403 | { $$ = DeclarationNode::newAggregate( $1, $2, 0, 0 ); }
|
---|
[2871210] | 1404 | | aggregate_key no_attr_identifier_or_type_name '{' field_declaration_list '}'
|
---|
[721f17a] | 1405 | { $$ = DeclarationNode::newAggregate( $1, $2, 0, $4 ); }
|
---|
| 1406 | | aggregate_key '(' type_name_list ')' '{' field_declaration_list '}' // CFA
|
---|
| 1407 | { $$ = DeclarationNode::newAggregate( $1, 0, $3, $6 ); }
|
---|
[2871210] | 1408 | | aggregate_key typegen_name // CFA, S/R conflict
|
---|
| 1409 | { $$ = $2; }
|
---|
[4d51835] | 1410 | ;
|
---|
[51b73452] | 1411 |
|
---|
| 1412 | aggregate_key:
|
---|
[4d51835] | 1413 | STRUCT attribute_list_opt
|
---|
| 1414 | { $$ = DeclarationNode::Struct; }
|
---|
| 1415 | | UNION attribute_list_opt
|
---|
| 1416 | { $$ = DeclarationNode::Union; }
|
---|
| 1417 | ;
|
---|
[51b73452] | 1418 |
|
---|
| 1419 | field_declaration_list:
|
---|
[4d51835] | 1420 | field_declaration
|
---|
| 1421 | { $$ = $1; }
|
---|
| 1422 | | field_declaration_list field_declaration
|
---|
| 1423 | { $$ = $1->appendList( $2 ); }
|
---|
| 1424 | ;
|
---|
[51b73452] | 1425 |
|
---|
| 1426 | field_declaration:
|
---|
[4d51835] | 1427 | new_field_declaring_list ';' // CFA, new style field declaration
|
---|
| 1428 | | EXTENSION new_field_declaring_list ';' // GCC
|
---|
| 1429 | { $$ = $2; }
|
---|
| 1430 | | field_declaring_list ';'
|
---|
| 1431 | | EXTENSION field_declaring_list ';' // GCC
|
---|
| 1432 | { $$ = $2; }
|
---|
| 1433 | ;
|
---|
[b87a5ed] | 1434 |
|
---|
| 1435 | new_field_declaring_list: // CFA, new style field declaration
|
---|
[4d51835] | 1436 | new_abstract_declarator_tuple // CFA, no field name
|
---|
[2871210] | 1437 | | new_abstract_declarator_tuple no_attr_identifier_or_type_name
|
---|
[4d51835] | 1438 | { $$ = $1->addName( $2 ); }
|
---|
[2871210] | 1439 | | new_field_declaring_list ',' no_attr_identifier_or_type_name
|
---|
[4d51835] | 1440 | { $$ = $1->appendList( $1->cloneType( $3 ) ); }
|
---|
| 1441 | | new_field_declaring_list ',' // CFA, no field name
|
---|
| 1442 | { $$ = $1->appendList( $1->cloneType( 0 ) ); }
|
---|
| 1443 | ;
|
---|
[51b73452] | 1444 |
|
---|
| 1445 | field_declaring_list:
|
---|
[4d51835] | 1446 | type_specifier field_declarator
|
---|
| 1447 | { $$ = $2->addType( $1 ); }
|
---|
| 1448 | | field_declaring_list ',' attribute_list_opt field_declarator
|
---|
| 1449 | { $$ = $1->appendList( $1->cloneBaseType( $4 ) ); }
|
---|
| 1450 | ;
|
---|
[51b73452] | 1451 |
|
---|
| 1452 | field_declarator:
|
---|
[4d51835] | 1453 | // empty
|
---|
| 1454 | { $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name
|
---|
| 1455 | | bit_subrange_size // no field name
|
---|
| 1456 | { $$ = DeclarationNode::newBitfield( $1 ); }
|
---|
| 1457 | | variable_declarator bit_subrange_size_opt
|
---|
| 1458 | // A semantic check is required to ensure bit_subrange only appears on base type int.
|
---|
| 1459 | { $$ = $1->addBitfield( $2 ); }
|
---|
[2871210] | 1460 | | type_redeclarator bit_subrange_size_opt
|
---|
[4d51835] | 1461 | // A semantic check is required to ensure bit_subrange only appears on base type int.
|
---|
| 1462 | { $$ = $1->addBitfield( $2 ); }
|
---|
| 1463 | | variable_abstract_declarator // CFA, no field name
|
---|
| 1464 | ;
|
---|
[51b73452] | 1465 |
|
---|
| 1466 | bit_subrange_size_opt:
|
---|
[4d51835] | 1467 | // empty
|
---|
| 1468 | { $$ = 0; }
|
---|
| 1469 | | bit_subrange_size
|
---|
| 1470 | { $$ = $1; }
|
---|
| 1471 | ;
|
---|
[51b73452] | 1472 |
|
---|
| 1473 | bit_subrange_size:
|
---|
[4d51835] | 1474 | ':' constant_expression
|
---|
| 1475 | { $$ = $2; }
|
---|
| 1476 | ;
|
---|
[51b73452] | 1477 |
|
---|
| 1478 | enum_key:
|
---|
[4d51835] | 1479 | ENUM attribute_list_opt
|
---|
| 1480 | ;
|
---|
[51b73452] | 1481 |
|
---|
| 1482 | enum_name:
|
---|
[4d51835] | 1483 | enum_key '{' enumerator_list comma_opt '}'
|
---|
| 1484 | { $$ = DeclarationNode::newEnum( 0, $3 ); }
|
---|
[2871210] | 1485 | | enum_key no_attr_identifier_or_type_name '{' enumerator_list comma_opt '}'
|
---|
[4d51835] | 1486 | { $$ = DeclarationNode::newEnum( $2, $4 ); }
|
---|
[2871210] | 1487 | | enum_key no_attr_identifier_or_type_name
|
---|
[4d51835] | 1488 | { $$ = DeclarationNode::newEnum( $2, 0 ); }
|
---|
| 1489 | ;
|
---|
[51b73452] | 1490 |
|
---|
| 1491 | enumerator_list:
|
---|
[2871210] | 1492 | no_attr_identifier_or_type_name enumerator_value_opt
|
---|
[4d51835] | 1493 | { $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
|
---|
[2871210] | 1494 | | enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt
|
---|
[4d51835] | 1495 | { $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
|
---|
| 1496 | ;
|
---|
[51b73452] | 1497 |
|
---|
| 1498 | enumerator_value_opt:
|
---|
[4d51835] | 1499 | // empty
|
---|
| 1500 | { $$ = 0; }
|
---|
| 1501 | | '=' constant_expression
|
---|
| 1502 | { $$ = $2; }
|
---|
| 1503 | ;
|
---|
[51b73452] | 1504 |
|
---|
[c11e31c] | 1505 | // Minimum of one parameter after which ellipsis is allowed only at the end.
|
---|
[51b73452] | 1506 |
|
---|
[b87a5ed] | 1507 | new_parameter_type_list_opt: // CFA
|
---|
[4d51835] | 1508 | // empty
|
---|
| 1509 | { $$ = 0; }
|
---|
| 1510 | | new_parameter_type_list
|
---|
| 1511 | ;
|
---|
[b87a5ed] | 1512 |
|
---|
| 1513 | new_parameter_type_list: // CFA, abstract + real
|
---|
[4d51835] | 1514 | new_abstract_parameter_list
|
---|
| 1515 | | new_parameter_list
|
---|
| 1516 | | new_parameter_list pop ',' push new_abstract_parameter_list
|
---|
| 1517 | { $$ = $1->appendList( $5 ); }
|
---|
| 1518 | | new_abstract_parameter_list pop ',' push ELLIPSIS
|
---|
| 1519 | { $$ = $1->addVarArgs(); }
|
---|
| 1520 | | new_parameter_list pop ',' push ELLIPSIS
|
---|
| 1521 | { $$ = $1->addVarArgs(); }
|
---|
| 1522 | ;
|
---|
[b87a5ed] | 1523 |
|
---|
| 1524 | new_parameter_list: // CFA
|
---|
[de62360d] | 1525 | // To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last new_abstract_parameter_list is
|
---|
| 1526 | // factored out from new_parameter_list, flattening the rules to get lookahead to the ']'.
|
---|
[4d51835] | 1527 | new_parameter_declaration
|
---|
| 1528 | | new_abstract_parameter_list pop ',' push new_parameter_declaration
|
---|
| 1529 | { $$ = $1->appendList( $5 ); }
|
---|
| 1530 | | new_parameter_list pop ',' push new_parameter_declaration
|
---|
| 1531 | { $$ = $1->appendList( $5 ); }
|
---|
| 1532 | | new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration
|
---|
| 1533 | { $$ = $1->appendList( $5 )->appendList( $9 ); }
|
---|
| 1534 | ;
|
---|
[b87a5ed] | 1535 |
|
---|
| 1536 | new_abstract_parameter_list: // CFA, new & old style abstract
|
---|
[4d51835] | 1537 | new_abstract_parameter_declaration
|
---|
| 1538 | | new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration
|
---|
| 1539 | { $$ = $1->appendList( $5 ); }
|
---|
| 1540 | ;
|
---|
[51b73452] | 1541 |
|
---|
| 1542 | parameter_type_list_opt:
|
---|
[4d51835] | 1543 | // empty
|
---|
| 1544 | { $$ = 0; }
|
---|
| 1545 | | parameter_type_list
|
---|
| 1546 | ;
|
---|
[51b73452] | 1547 |
|
---|
| 1548 | parameter_type_list:
|
---|
[4d51835] | 1549 | parameter_list
|
---|
| 1550 | | parameter_list pop ',' push ELLIPSIS
|
---|
| 1551 | { $$ = $1->addVarArgs(); }
|
---|
| 1552 | ;
|
---|
[b87a5ed] | 1553 |
|
---|
| 1554 | parameter_list: // abstract + real
|
---|
[4d51835] | 1555 | abstract_parameter_declaration
|
---|
| 1556 | | parameter_declaration
|
---|
| 1557 | | parameter_list pop ',' push abstract_parameter_declaration
|
---|
| 1558 | { $$ = $1->appendList( $5 ); }
|
---|
| 1559 | | parameter_list pop ',' push parameter_declaration
|
---|
| 1560 | { $$ = $1->appendList( $5 ); }
|
---|
| 1561 | ;
|
---|
[51b73452] | 1562 |
|
---|
[de62360d] | 1563 | // Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
|
---|
[2871210] | 1564 | // for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
|
---|
[51b73452] | 1565 |
|
---|
[b87a5ed] | 1566 | new_parameter_declaration: // CFA, new & old style parameter declaration
|
---|
[4d51835] | 1567 | parameter_declaration
|
---|
[2871210] | 1568 | | new_identifier_parameter_declarator_no_tuple identifier_or_type_name assignment_opt
|
---|
[4d51835] | 1569 | { $$ = $1->addName( $2 ); }
|
---|
[2871210] | 1570 | | new_abstract_tuple identifier_or_type_name assignment_opt
|
---|
[4d51835] | 1571 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
|
---|
| 1572 | { $$ = $1->addName( $2 ); }
|
---|
[2871210] | 1573 | | type_qualifier_list new_abstract_tuple identifier_or_type_name assignment_opt
|
---|
[4d51835] | 1574 | { $$ = $2->addName( $3 )->addQualifiers( $1 ); }
|
---|
| 1575 | | new_function_specifier
|
---|
| 1576 | ;
|
---|
[b87a5ed] | 1577 |
|
---|
| 1578 | new_abstract_parameter_declaration: // CFA, new & old style parameter declaration
|
---|
[4d51835] | 1579 | abstract_parameter_declaration
|
---|
| 1580 | | new_identifier_parameter_declarator_no_tuple
|
---|
| 1581 | | new_abstract_tuple
|
---|
| 1582 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
|
---|
| 1583 | | type_qualifier_list new_abstract_tuple
|
---|
| 1584 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1585 | | new_abstract_function
|
---|
| 1586 | ;
|
---|
[51b73452] | 1587 |
|
---|
| 1588 | parameter_declaration:
|
---|
[4d51835] | 1589 | declaration_specifier identifier_parameter_declarator assignment_opt
|
---|
| 1590 | {
|
---|
| 1591 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
[de62360d] | 1592 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
|
---|
[4d51835] | 1593 | }
|
---|
[2871210] | 1594 | | declaration_specifier type_parameter_redeclarator assignment_opt
|
---|
[4d51835] | 1595 | {
|
---|
| 1596 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
[de62360d] | 1597 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
|
---|
[4d51835] | 1598 | }
|
---|
| 1599 | ;
|
---|
[51b73452] | 1600 |
|
---|
| 1601 | abstract_parameter_declaration:
|
---|
[4d51835] | 1602 | declaration_specifier
|
---|
| 1603 | | declaration_specifier abstract_parameter_declarator
|
---|
| 1604 | { $$ = $2->addType( $1 ); }
|
---|
| 1605 | ;
|
---|
[51b73452] | 1606 |
|
---|
[c11e31c] | 1607 | // ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
|
---|
[de62360d] | 1608 | // parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
|
---|
| 1609 | // identifiers. The ANSI-style parameter-list can redefine a typedef name.
|
---|
[51b73452] | 1610 |
|
---|
[b87a5ed] | 1611 | identifier_list: // K&R-style parameter list => no types
|
---|
[4d51835] | 1612 | no_attr_identifier
|
---|
| 1613 | { $$ = DeclarationNode::newName( $1 ); }
|
---|
| 1614 | | identifier_list ',' no_attr_identifier
|
---|
| 1615 | { $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
|
---|
| 1616 | ;
|
---|
[51b73452] | 1617 |
|
---|
[2871210] | 1618 | identifier_or_type_name:
|
---|
[4d51835] | 1619 | identifier
|
---|
| 1620 | | TYPEDEFname
|
---|
| 1621 | | TYPEGENname
|
---|
| 1622 | ;
|
---|
[51b73452] | 1623 |
|
---|
[2871210] | 1624 | no_01_identifier_or_type_name:
|
---|
[4d51835] | 1625 | no_01_identifier
|
---|
| 1626 | | TYPEDEFname
|
---|
| 1627 | | TYPEGENname
|
---|
| 1628 | ;
|
---|
[51b73452] | 1629 |
|
---|
[2871210] | 1630 | no_attr_identifier_or_type_name:
|
---|
[4d51835] | 1631 | no_attr_identifier
|
---|
| 1632 | | TYPEDEFname
|
---|
[721f17a] | 1633 | | TYPEGENname
|
---|
[4d51835] | 1634 | ;
|
---|
[b87a5ed] | 1635 |
|
---|
| 1636 | type_name_no_function: // sizeof, alignof, cast (constructor)
|
---|
[4d51835] | 1637 | new_abstract_declarator_tuple // CFA
|
---|
| 1638 | | type_specifier
|
---|
| 1639 | | type_specifier variable_abstract_declarator
|
---|
| 1640 | { $$ = $2->addType( $1 ); }
|
---|
| 1641 | ;
|
---|
[b87a5ed] | 1642 |
|
---|
| 1643 | type_name: // typeof, assertion
|
---|
[4d51835] | 1644 | new_abstract_declarator_tuple // CFA
|
---|
| 1645 | | new_abstract_function // CFA
|
---|
| 1646 | | type_specifier
|
---|
| 1647 | | type_specifier abstract_declarator
|
---|
| 1648 | { $$ = $2->addType( $1 ); }
|
---|
| 1649 | ;
|
---|
[51b73452] | 1650 |
|
---|
| 1651 | initializer_opt:
|
---|
[4d51835] | 1652 | // empty
|
---|
| 1653 | { $$ = 0; }
|
---|
[2871210] | 1654 | | '=' initializer
|
---|
| 1655 | { $$ = $2; }
|
---|
[4d51835] | 1656 | ;
|
---|
[51b73452] | 1657 |
|
---|
| 1658 | initializer:
|
---|
[de62360d] | 1659 | assignment_expression { $$ = new InitializerNode( $1 ); }
|
---|
| 1660 | | '{' initializer_list comma_opt '}' { $$ = new InitializerNode( $2, true ); }
|
---|
[4d51835] | 1661 | ;
|
---|
[51b73452] | 1662 |
|
---|
| 1663 | initializer_list:
|
---|
[4d51835] | 1664 | initializer
|
---|
| 1665 | | designation initializer { $$ = $2->set_designators( $1 ); }
|
---|
[de62360d] | 1666 | | initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_link( $3 ) ); }
|
---|
[4d51835] | 1667 | | initializer_list ',' designation initializer
|
---|
[de62360d] | 1668 | { $$ = (InitializerNode *)( $1->set_link( $4->set_designators( $3 ) ) ); }
|
---|
[4d51835] | 1669 | ;
|
---|
[b87a5ed] | 1670 |
|
---|
[de62360d] | 1671 | // There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
|
---|
| 1672 | // '=' to separator the designator from the initializer value, as in:
|
---|
[c11e31c] | 1673 | //
|
---|
[b87a5ed] | 1674 | // int x[10] = { [1] = 3 };
|
---|
[c11e31c] | 1675 | //
|
---|
[de62360d] | 1676 | // The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
|
---|
| 1677 | // changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
|
---|
| 1678 | // field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
|
---|
| 1679 | // shift/reduce conflicts
|
---|
[51b73452] | 1680 |
|
---|
| 1681 | designation:
|
---|
[4d51835] | 1682 | designator_list ':' // C99, CFA uses ":" instead of "="
|
---|
[2871210] | 1683 | | no_attr_identifier_or_type_name ':' // GCC, field name
|
---|
| 1684 | { $$ = new VarRefNode( $1 ); }
|
---|
[4d51835] | 1685 | ;
|
---|
[51b73452] | 1686 |
|
---|
[b87a5ed] | 1687 | designator_list: // C99
|
---|
[4d51835] | 1688 | designator
|
---|
[2871210] | 1689 | | designator_list designator
|
---|
| 1690 | { $$ = (ExpressionNode *)( $1->set_link( $2 )); }
|
---|
[de62360d] | 1691 | //| designator_list designator { $$ = new CompositeExprNode( $1, $2 ); }
|
---|
[4d51835] | 1692 | ;
|
---|
[51b73452] | 1693 |
|
---|
| 1694 | designator:
|
---|
[51b1202] | 1695 | // only ".0" and ".1" allowed => semantic check
|
---|
| 1696 | FLOATINGconstant
|
---|
| 1697 | { $$ = new DesignatorNode( new VarRefNode( $1 ) ); }
|
---|
| 1698 | | '.' no_attr_identifier_or_type_name // C99, field name
|
---|
| 1699 | { $$ = new DesignatorNode( new VarRefNode( $2 ) ); }
|
---|
[4d51835] | 1700 | | '[' push assignment_expression pop ']' // C99, single array element
|
---|
[de62360d] | 1701 | // assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
|
---|
[51b1202] | 1702 | { $$ = new DesignatorNode( $3, true ); }
|
---|
[4d51835] | 1703 | | '[' push subrange pop ']' // CFA, multiple array elements
|
---|
[51b1202] | 1704 | { $$ = new DesignatorNode( $3, true ); }
|
---|
[4d51835] | 1705 | | '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
|
---|
[51b1202] | 1706 | { $$ = new DesignatorNode( new CompositeExprNode( new OperatorNode( OperatorNode::Range ), $3, $5 ), true ); }
|
---|
[4d51835] | 1707 | | '.' '[' push field_list pop ']' // CFA, tuple field selector
|
---|
[51b1202] | 1708 | { $$ = new DesignatorNode( $4 ); }
|
---|
[4d51835] | 1709 | ;
|
---|
[51b73452] | 1710 |
|
---|
[de62360d] | 1711 | // The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
|
---|
| 1712 | // rather than an object-oriented type system. This required four groups of extensions:
|
---|
[c11e31c] | 1713 | //
|
---|
| 1714 | // Overloading: function, data, and operator identifiers may be overloaded.
|
---|
| 1715 | //
|
---|
[de62360d] | 1716 | // Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
|
---|
| 1717 | // and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
|
---|
| 1718 | // definitions of new types. Type declarations with storage class "extern" provide opaque types.
|
---|
[c11e31c] | 1719 | //
|
---|
[de62360d] | 1720 | // Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
|
---|
| 1721 | // site. A polymorphic function is not a template; it is a function, with an address and a type.
|
---|
[c11e31c] | 1722 | //
|
---|
| 1723 | // Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
|
---|
[de62360d] | 1724 | // types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
|
---|
| 1725 | // hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
|
---|
| 1726 | // types provide the operations declared by a specification. Assertions are normally used to declare requirements
|
---|
| 1727 | // on type arguments of polymorphic functions.
|
---|
[c11e31c] | 1728 |
|
---|
[b87a5ed] | 1729 | typegen_declaration_specifier: // CFA
|
---|
[4d51835] | 1730 | typegen_type_specifier
|
---|
| 1731 | | declaration_qualifier_list typegen_type_specifier
|
---|
| 1732 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 1733 | | typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
|
---|
| 1734 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1735 | | typegen_declaration_specifier storage_class type_qualifier_list
|
---|
| 1736 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
|
---|
| 1737 | ;
|
---|
[b87a5ed] | 1738 |
|
---|
| 1739 | typegen_type_specifier: // CFA
|
---|
[2871210] | 1740 | typegen_name
|
---|
| 1741 | | type_qualifier_list typegen_name
|
---|
| 1742 | { $$ = $2->addQualifiers( $1 ); }
|
---|
[4d51835] | 1743 | | typegen_type_specifier type_qualifier
|
---|
| 1744 | { $$ = $1->addQualifiers( $2 ); }
|
---|
| 1745 | ;
|
---|
[b87a5ed] | 1746 |
|
---|
[2871210] | 1747 | typegen_name: // CFA
|
---|
| 1748 | TYPEGENname '(' type_name_list ')'
|
---|
| 1749 | { $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
|
---|
| 1750 | ;
|
---|
| 1751 |
|
---|
[b87a5ed] | 1752 | type_parameter_list: // CFA
|
---|
[4d51835] | 1753 | type_parameter assignment_opt
|
---|
| 1754 | | type_parameter_list ',' type_parameter assignment_opt
|
---|
| 1755 | { $$ = $1->appendList( $3 ); }
|
---|
| 1756 | ;
|
---|
[b87a5ed] | 1757 |
|
---|
| 1758 | type_parameter: // CFA
|
---|
[2871210] | 1759 | type_class no_attr_identifier_or_type_name
|
---|
| 1760 | { typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); }
|
---|
[4d51835] | 1761 | assertion_list_opt
|
---|
| 1762 | { $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); }
|
---|
| 1763 | | type_specifier identifier_parameter_declarator
|
---|
| 1764 | ;
|
---|
[b87a5ed] | 1765 |
|
---|
| 1766 | type_class: // CFA
|
---|
[4d51835] | 1767 | TYPE
|
---|
| 1768 | { $$ = DeclarationNode::Type; }
|
---|
| 1769 | | DTYPE
|
---|
| 1770 | { $$ = DeclarationNode::Ftype; }
|
---|
| 1771 | | FTYPE
|
---|
| 1772 | { $$ = DeclarationNode::Dtype; }
|
---|
| 1773 | ;
|
---|
[b87a5ed] | 1774 |
|
---|
| 1775 | assertion_list_opt: // CFA
|
---|
[4d51835] | 1776 | // empty
|
---|
| 1777 | { $$ = 0; }
|
---|
| 1778 | | assertion_list_opt assertion
|
---|
| 1779 | { $$ = $1 == 0 ? $2 : $1->appendList( $2 ); }
|
---|
| 1780 | ;
|
---|
[b87a5ed] | 1781 |
|
---|
| 1782 | assertion: // CFA
|
---|
[2871210] | 1783 | '|' no_attr_identifier_or_type_name '(' type_name_list ')'
|
---|
[4d51835] | 1784 | {
|
---|
[2871210] | 1785 | typedefTable.openContext( *$2 );
|
---|
[4d51835] | 1786 | $$ = DeclarationNode::newContextUse( $2, $4 );
|
---|
| 1787 | }
|
---|
| 1788 | | '|' '{' push context_declaration_list '}'
|
---|
| 1789 | { $$ = $4; }
|
---|
| 1790 | | '|' '(' push type_parameter_list pop ')' '{' push context_declaration_list '}' '(' type_name_list ')'
|
---|
| 1791 | { $$ = 0; }
|
---|
| 1792 | ;
|
---|
[b87a5ed] | 1793 |
|
---|
| 1794 | type_name_list: // CFA
|
---|
[4d51835] | 1795 | type_name
|
---|
| 1796 | { $$ = new TypeValueNode( $1 ); }
|
---|
| 1797 | | assignment_expression
|
---|
| 1798 | | type_name_list ',' type_name
|
---|
[de62360d] | 1799 | { $$ = (ExpressionNode *)( $1->set_link( new TypeValueNode( $3 ))); }
|
---|
[4d51835] | 1800 | | type_name_list ',' assignment_expression
|
---|
[de62360d] | 1801 | { $$ = (ExpressionNode *)( $1->set_link( $3 )); }
|
---|
[4d51835] | 1802 | ;
|
---|
[b87a5ed] | 1803 |
|
---|
| 1804 | type_declaring_list: // CFA
|
---|
[4d51835] | 1805 | TYPE type_declarator
|
---|
| 1806 | { $$ = $2; }
|
---|
| 1807 | | storage_class_list TYPE type_declarator
|
---|
| 1808 | { $$ = $3->addQualifiers( $1 ); }
|
---|
| 1809 | | type_declaring_list ',' type_declarator
|
---|
| 1810 | { $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); }
|
---|
| 1811 | ;
|
---|
[b87a5ed] | 1812 |
|
---|
| 1813 | type_declarator: // CFA
|
---|
[4d51835] | 1814 | type_declarator_name assertion_list_opt
|
---|
| 1815 | { $$ = $1->addAssertions( $2 ); }
|
---|
| 1816 | | type_declarator_name assertion_list_opt '=' type_name
|
---|
| 1817 | { $$ = $1->addAssertions( $2 )->addType( $4 ); }
|
---|
| 1818 | ;
|
---|
[b87a5ed] | 1819 |
|
---|
| 1820 | type_declarator_name: // CFA
|
---|
[2871210] | 1821 | no_attr_identifier_or_type_name
|
---|
[4d51835] | 1822 | {
|
---|
[de62360d] | 1823 | typedefTable.addToEnclosingScope( *$1, TypedefTable::TD );
|
---|
[4d51835] | 1824 | $$ = DeclarationNode::newTypeDecl( $1, 0 );
|
---|
| 1825 | }
|
---|
[2871210] | 1826 | | no_01_identifier_or_type_name '(' push type_parameter_list pop ')'
|
---|
[4d51835] | 1827 | {
|
---|
[de62360d] | 1828 | typedefTable.addToEnclosingScope( *$1, TypedefTable::TG );
|
---|
[4d51835] | 1829 | $$ = DeclarationNode::newTypeDecl( $1, $4 );
|
---|
| 1830 | }
|
---|
| 1831 | ;
|
---|
[b87a5ed] | 1832 |
|
---|
| 1833 | context_specifier: // CFA
|
---|
[2871210] | 1834 | CONTEXT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}'
|
---|
[4d51835] | 1835 | {
|
---|
[de62360d] | 1836 | typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
|
---|
[4d51835] | 1837 | $$ = DeclarationNode::newContext( $2, $5, 0 );
|
---|
| 1838 | }
|
---|
[2871210] | 1839 | | CONTEXT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{'
|
---|
[4d51835] | 1840 | {
|
---|
[de62360d] | 1841 | typedefTable.enterContext( *$2 );
|
---|
[4d51835] | 1842 | typedefTable.enterScope();
|
---|
| 1843 | }
|
---|
| 1844 | context_declaration_list '}'
|
---|
| 1845 | {
|
---|
| 1846 | typedefTable.leaveContext();
|
---|
[de62360d] | 1847 | typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
|
---|
[4d51835] | 1848 | $$ = DeclarationNode::newContext( $2, $5, $10 );
|
---|
| 1849 | }
|
---|
| 1850 | ;
|
---|
[b87a5ed] | 1851 |
|
---|
| 1852 | context_declaration_list: // CFA
|
---|
[4d51835] | 1853 | context_declaration
|
---|
| 1854 | | context_declaration_list push context_declaration
|
---|
| 1855 | { $$ = $1->appendList( $3 ); }
|
---|
| 1856 | ;
|
---|
[b87a5ed] | 1857 |
|
---|
| 1858 | context_declaration: // CFA
|
---|
[4d51835] | 1859 | new_context_declaring_list pop ';'
|
---|
| 1860 | | context_declaring_list pop ';'
|
---|
| 1861 | ;
|
---|
[b87a5ed] | 1862 |
|
---|
| 1863 | new_context_declaring_list: // CFA
|
---|
[4d51835] | 1864 | new_variable_specifier
|
---|
| 1865 | {
|
---|
| 1866 | typedefTable.addToEnclosingScope2( TypedefTable::ID );
|
---|
| 1867 | $$ = $1;
|
---|
| 1868 | }
|
---|
| 1869 | | new_function_specifier
|
---|
| 1870 | {
|
---|
| 1871 | typedefTable.addToEnclosingScope2( TypedefTable::ID );
|
---|
| 1872 | $$ = $1;
|
---|
| 1873 | }
|
---|
[2871210] | 1874 | | new_context_declaring_list pop ',' push identifier_or_type_name
|
---|
[4d51835] | 1875 | {
|
---|
[de62360d] | 1876 | typedefTable.addToEnclosingScope2( *$5, TypedefTable::ID );
|
---|
[4d51835] | 1877 | $$ = $1->appendList( $1->cloneType( $5 ) );
|
---|
| 1878 | }
|
---|
| 1879 | ;
|
---|
[b87a5ed] | 1880 |
|
---|
| 1881 | context_declaring_list: // CFA
|
---|
[4d51835] | 1882 | type_specifier declarator
|
---|
| 1883 | {
|
---|
| 1884 | typedefTable.addToEnclosingScope2( TypedefTable::ID );
|
---|
| 1885 | $$ = $2->addType( $1 );
|
---|
| 1886 | }
|
---|
| 1887 | | context_declaring_list pop ',' push declarator
|
---|
| 1888 | {
|
---|
| 1889 | typedefTable.addToEnclosingScope2( TypedefTable::ID );
|
---|
| 1890 | $$ = $1->appendList( $1->cloneBaseType( $5 ) );
|
---|
| 1891 | }
|
---|
| 1892 | ;
|
---|
[51b73452] | 1893 |
|
---|
[c11e31c] | 1894 | //***************************** EXTERNAL DEFINITIONS *****************************
|
---|
[51b73452] | 1895 |
|
---|
| 1896 | translation_unit:
|
---|
[4d51835] | 1897 | // empty
|
---|
| 1898 | {} // empty input file
|
---|
| 1899 | | external_definition_list
|
---|
| 1900 | {
|
---|
| 1901 | if ( theTree ) {
|
---|
| 1902 | theTree->appendList( $1 );
|
---|
| 1903 | } else {
|
---|
| 1904 | theTree = $1;
|
---|
| 1905 | }
|
---|
| 1906 | }
|
---|
| 1907 | ;
|
---|
[51b73452] | 1908 |
|
---|
| 1909 | external_definition_list:
|
---|
[4d51835] | 1910 | external_definition
|
---|
| 1911 | | external_definition_list push external_definition
|
---|
[de62360d] | 1912 | { $$ = ( $1 != NULL ) ? $1->appendList( $3 ) : $3; }
|
---|
[4d51835] | 1913 | ;
|
---|
[51b73452] | 1914 |
|
---|
| 1915 | external_definition_list_opt:
|
---|
[4d51835] | 1916 | // empty
|
---|
| 1917 | { $$ = 0; }
|
---|
| 1918 | | external_definition_list
|
---|
| 1919 | ;
|
---|
[51b73452] | 1920 |
|
---|
| 1921 | external_definition:
|
---|
[4d51835] | 1922 | declaration
|
---|
| 1923 | | external_function_definition
|
---|
| 1924 | | asm_statement // GCC, global assembler statement
|
---|
| 1925 | {}
|
---|
| 1926 | | EXTERN STRINGliteral
|
---|
| 1927 | {
|
---|
| 1928 | linkageStack.push( linkage );
|
---|
| 1929 | linkage = LinkageSpec::fromString( *$2 );
|
---|
| 1930 | }
|
---|
| 1931 | '{' external_definition_list_opt '}' // C++-style linkage specifier
|
---|
| 1932 | {
|
---|
| 1933 | linkage = linkageStack.top();
|
---|
| 1934 | linkageStack.pop();
|
---|
| 1935 | $$ = $5;
|
---|
| 1936 | }
|
---|
| 1937 | | EXTENSION external_definition
|
---|
| 1938 | { $$ = $2; }
|
---|
| 1939 | ;
|
---|
| 1940 |
|
---|
| 1941 | external_function_definition:
|
---|
| 1942 | function_definition
|
---|
[de62360d] | 1943 | // These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
|
---|
| 1944 | // code with functions missing a type-specifier on the return type. Parsing is possible because
|
---|
| 1945 | // function_definition does not appear in the context of an expression (nested functions would preclude this
|
---|
| 1946 | // concession). A function prototype declaration must still have a type_specifier. OBSOLESCENT (see 1)
|
---|
[4d51835] | 1947 | | function_declarator compound_statement
|
---|
| 1948 | {
|
---|
| 1949 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1950 | typedefTable.leaveScope();
|
---|
| 1951 | $$ = $1->addFunctionBody( $2 );
|
---|
| 1952 | }
|
---|
| 1953 | | old_function_declarator push old_declaration_list_opt compound_statement
|
---|
| 1954 | {
|
---|
| 1955 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1956 | typedefTable.leaveScope();
|
---|
| 1957 | $$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 );
|
---|
| 1958 | }
|
---|
| 1959 | ;
|
---|
[51b73452] | 1960 |
|
---|
| 1961 | function_definition:
|
---|
[4d51835] | 1962 | new_function_declaration compound_statement // CFA
|
---|
| 1963 | {
|
---|
| 1964 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1965 | typedefTable.leaveScope();
|
---|
| 1966 | $$ = $1->addFunctionBody( $2 );
|
---|
| 1967 | }
|
---|
| 1968 | | declaration_specifier function_declarator compound_statement
|
---|
| 1969 | {
|
---|
| 1970 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1971 | typedefTable.leaveScope();
|
---|
| 1972 | $$ = $2->addFunctionBody( $3 )->addType( $1 );
|
---|
| 1973 | }
|
---|
| 1974 | | type_qualifier_list function_declarator compound_statement
|
---|
| 1975 | {
|
---|
| 1976 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1977 | typedefTable.leaveScope();
|
---|
| 1978 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
|
---|
| 1979 | }
|
---|
| 1980 | | declaration_qualifier_list function_declarator compound_statement
|
---|
| 1981 | {
|
---|
| 1982 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1983 | typedefTable.leaveScope();
|
---|
| 1984 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
|
---|
| 1985 | }
|
---|
| 1986 | | declaration_qualifier_list type_qualifier_list function_declarator compound_statement
|
---|
| 1987 | {
|
---|
| 1988 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1989 | typedefTable.leaveScope();
|
---|
| 1990 | $$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 );
|
---|
| 1991 | }
|
---|
| 1992 |
|
---|
| 1993 | // Old-style K&R function definition, OBSOLESCENT (see 4)
|
---|
| 1994 | | declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement
|
---|
| 1995 | {
|
---|
| 1996 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 1997 | typedefTable.leaveScope();
|
---|
| 1998 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 );
|
---|
| 1999 | }
|
---|
| 2000 | | type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
|
---|
| 2001 | {
|
---|
| 2002 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 2003 | typedefTable.leaveScope();
|
---|
| 2004 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
|
---|
| 2005 | }
|
---|
| 2006 |
|
---|
| 2007 | // Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4)
|
---|
| 2008 | | declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
|
---|
| 2009 | {
|
---|
| 2010 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 2011 | typedefTable.leaveScope();
|
---|
| 2012 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
|
---|
| 2013 | }
|
---|
| 2014 | | declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
|
---|
| 2015 | {
|
---|
| 2016 | typedefTable.addToEnclosingScope( TypedefTable::ID );
|
---|
| 2017 | typedefTable.leaveScope();
|
---|
| 2018 | $$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 );
|
---|
| 2019 | }
|
---|
| 2020 | ;
|
---|
[51b73452] | 2021 |
|
---|
| 2022 | declarator:
|
---|
[4d51835] | 2023 | variable_declarator
|
---|
| 2024 | | function_declarator
|
---|
[2871210] | 2025 | | type_redeclarator
|
---|
[4d51835] | 2026 | ;
|
---|
[51b73452] | 2027 |
|
---|
| 2028 | subrange:
|
---|
[4d51835] | 2029 | constant_expression '~' constant_expression // CFA, integer subrange
|
---|
[de62360d] | 2030 | { $$ = new CompositeExprNode( new OperatorNode( OperatorNode::Range ), $1, $3 ); }
|
---|
[4d51835] | 2031 | ;
|
---|
[b87a5ed] | 2032 |
|
---|
| 2033 | asm_name_opt: // GCC
|
---|
[4d51835] | 2034 | // empty
|
---|
| 2035 | | ASM '(' string_literal_list ')' attribute_list_opt
|
---|
| 2036 | ;
|
---|
[b87a5ed] | 2037 |
|
---|
| 2038 | attribute_list_opt: // GCC
|
---|
[4d51835] | 2039 | // empty
|
---|
[1db21619] | 2040 | { $$ = 0; }
|
---|
[4d51835] | 2041 | | attribute_list
|
---|
| 2042 | ;
|
---|
[b87a5ed] | 2043 |
|
---|
| 2044 | attribute_list: // GCC
|
---|
[4d51835] | 2045 | attribute
|
---|
| 2046 | | attribute_list attribute
|
---|
[1db21619] | 2047 | { $$ = $2->addQualifiers( $1 ); }
|
---|
[4d51835] | 2048 | ;
|
---|
[b87a5ed] | 2049 |
|
---|
| 2050 | attribute: // GCC
|
---|
[4d51835] | 2051 | ATTRIBUTE '(' '(' attribute_parameter_list ')' ')'
|
---|
[1db21619] | 2052 | // { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
|
---|
| 2053 | { $$ = 0; }
|
---|
[4d51835] | 2054 | ;
|
---|
[b87a5ed] | 2055 |
|
---|
| 2056 | attribute_parameter_list: // GCC
|
---|
[4d51835] | 2057 | attrib
|
---|
| 2058 | | attribute_parameter_list ',' attrib
|
---|
| 2059 | ;
|
---|
[b87a5ed] | 2060 |
|
---|
| 2061 | attrib: // GCC
|
---|
[4d51835] | 2062 | // empty
|
---|
| 2063 | | any_word
|
---|
| 2064 | | any_word '(' comma_expression_opt ')'
|
---|
| 2065 | ;
|
---|
[b87a5ed] | 2066 |
|
---|
| 2067 | any_word: // GCC
|
---|
[2871210] | 2068 | identifier_or_type_name {}
|
---|
[4d51835] | 2069 | | storage_class_name {}
|
---|
| 2070 | | basic_type_name {}
|
---|
| 2071 | | type_qualifier {}
|
---|
| 2072 | ;
|
---|
[51b73452] | 2073 |
|
---|
[c11e31c] | 2074 | // ============================================================================
|
---|
[de62360d] | 2075 | // The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
|
---|
| 2076 | // because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
|
---|
| 2077 | // in:
|
---|
[c11e31c] | 2078 | //
|
---|
[b87a5ed] | 2079 | // int (*f())[10] { ... };
|
---|
| 2080 | // ... (*f())[3] += 1; // definition mimics usage
|
---|
[c11e31c] | 2081 | //
|
---|
[de62360d] | 2082 | // Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
|
---|
| 2083 | // the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
|
---|
[c11e31c] | 2084 | // ============================================================================
|
---|
| 2085 |
|
---|
| 2086 | // ----------------------------------------------------------------------------
|
---|
[de62360d] | 2087 | // The set of valid declarators before a compound statement for defining a function is less than the set of declarators
|
---|
| 2088 | // to define a variable or function prototype, e.g.:
|
---|
[c11e31c] | 2089 | //
|
---|
[b87a5ed] | 2090 | // valid declaration invalid definition
|
---|
| 2091 | // ----------------- ------------------
|
---|
[4d51835] | 2092 | // int f; int f {}
|
---|
| 2093 | // int *f; int *f {}
|
---|
[b87a5ed] | 2094 | // int f[10]; int f[10] {}
|
---|
[4d51835] | 2095 | // int (*f)(int); int (*f)(int) {}
|
---|
[c11e31c] | 2096 | //
|
---|
[de62360d] | 2097 | // To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
|
---|
| 2098 | // variable_declarator and function_declarator.
|
---|
[c11e31c] | 2099 | // ----------------------------------------------------------------------------
|
---|
| 2100 |
|
---|
[de62360d] | 2101 | // This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
|
---|
| 2102 | // declaring an array of functions versus a pointer to an array of functions.
|
---|
[51b73452] | 2103 |
|
---|
| 2104 | variable_declarator:
|
---|
[4d51835] | 2105 | paren_identifier attribute_list_opt
|
---|
[1db21619] | 2106 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2107 | | variable_ptr
|
---|
| 2108 | | variable_array attribute_list_opt
|
---|
[1db21619] | 2109 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2110 | | variable_function attribute_list_opt
|
---|
[1db21619] | 2111 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2112 | ;
|
---|
[51b73452] | 2113 |
|
---|
| 2114 | paren_identifier:
|
---|
[4d51835] | 2115 | identifier
|
---|
| 2116 | {
|
---|
[de62360d] | 2117 | typedefTable.setNextIdentifier( *$1 );
|
---|
[4d51835] | 2118 | $$ = DeclarationNode::newName( $1 );
|
---|
| 2119 | }
|
---|
| 2120 | | '(' paren_identifier ')' // redundant parenthesis
|
---|
| 2121 | { $$ = $2; }
|
---|
| 2122 | ;
|
---|
[51b73452] | 2123 |
|
---|
| 2124 | variable_ptr:
|
---|
[4d51835] | 2125 | '*' variable_declarator
|
---|
| 2126 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2127 | | '*' type_qualifier_list variable_declarator
|
---|
| 2128 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2129 | | '(' variable_ptr ')'
|
---|
| 2130 | { $$ = $2; }
|
---|
| 2131 | ;
|
---|
[51b73452] | 2132 |
|
---|
| 2133 | variable_array:
|
---|
[4d51835] | 2134 | paren_identifier array_dimension
|
---|
| 2135 | { $$ = $1->addArray( $2 ); }
|
---|
| 2136 | | '(' variable_ptr ')' array_dimension
|
---|
| 2137 | { $$ = $2->addArray( $4 ); }
|
---|
| 2138 | | '(' variable_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2139 | { $$ = $2->addArray( $4 ); }
|
---|
| 2140 | | '(' variable_array ')' // redundant parenthesis
|
---|
| 2141 | { $$ = $2; }
|
---|
| 2142 | ;
|
---|
[51b73452] | 2143 |
|
---|
| 2144 | variable_function:
|
---|
[4d51835] | 2145 | '(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2146 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2147 | | '(' variable_function ')' // redundant parenthesis
|
---|
| 2148 | { $$ = $2; }
|
---|
| 2149 | ;
|
---|
[51b73452] | 2150 |
|
---|
[de62360d] | 2151 | // This pattern parses a function declarator that is not redefining a typedef name. Because functions cannot be nested,
|
---|
| 2152 | // there is no context where a function definition can redefine a typedef name. To allow nested functions requires
|
---|
[2871210] | 2153 | // further separation of variable and function declarators in type_redeclarator. The pattern precludes returning
|
---|
[de62360d] | 2154 | // arrays and functions versus pointers to arrays and functions.
|
---|
[51b73452] | 2155 |
|
---|
| 2156 | function_declarator:
|
---|
[4d51835] | 2157 | function_no_ptr attribute_list_opt
|
---|
[1db21619] | 2158 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2159 | | function_ptr
|
---|
| 2160 | | function_array attribute_list_opt
|
---|
[1db21619] | 2161 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2162 | ;
|
---|
[51b73452] | 2163 |
|
---|
| 2164 | function_no_ptr:
|
---|
[4d51835] | 2165 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2166 | { $$ = $1->addParamList( $4 ); }
|
---|
| 2167 | | '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
|
---|
| 2168 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2169 | | '(' function_no_ptr ')' // redundant parenthesis
|
---|
| 2170 | { $$ = $2; }
|
---|
| 2171 | ;
|
---|
[51b73452] | 2172 |
|
---|
| 2173 | function_ptr:
|
---|
[4d51835] | 2174 | '*' function_declarator
|
---|
| 2175 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2176 | | '*' type_qualifier_list function_declarator
|
---|
| 2177 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2178 | | '(' function_ptr ')'
|
---|
| 2179 | { $$ = $2; }
|
---|
| 2180 | ;
|
---|
[51b73452] | 2181 |
|
---|
| 2182 | function_array:
|
---|
[4d51835] | 2183 | '(' function_ptr ')' array_dimension
|
---|
| 2184 | { $$ = $2->addArray( $4 ); }
|
---|
| 2185 | | '(' function_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2186 | { $$ = $2->addArray( $4 ); }
|
---|
| 2187 | | '(' function_array ')' // redundant parenthesis
|
---|
| 2188 | { $$ = $2; }
|
---|
| 2189 | ;
|
---|
[51b73452] | 2190 |
|
---|
[de62360d] | 2191 | // This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a typedef name
|
---|
| 2192 | // (see function_declarator for additional comments). The pattern precludes returning arrays and functions versus
|
---|
| 2193 | // pointers to arrays and functions.
|
---|
[51b73452] | 2194 |
|
---|
| 2195 | old_function_declarator:
|
---|
[4d51835] | 2196 | old_function_no_ptr
|
---|
| 2197 | | old_function_ptr
|
---|
| 2198 | | old_function_array
|
---|
| 2199 | ;
|
---|
[51b73452] | 2200 |
|
---|
| 2201 | old_function_no_ptr:
|
---|
[4d51835] | 2202 | paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
|
---|
| 2203 | { $$ = $1->addIdList( $3 ); }
|
---|
| 2204 | | '(' old_function_ptr ')' '(' identifier_list ')'
|
---|
| 2205 | { $$ = $2->addIdList( $5 ); }
|
---|
| 2206 | | '(' old_function_no_ptr ')' // redundant parenthesis
|
---|
| 2207 | { $$ = $2; }
|
---|
| 2208 | ;
|
---|
[51b73452] | 2209 |
|
---|
| 2210 | old_function_ptr:
|
---|
[4d51835] | 2211 | '*' old_function_declarator
|
---|
| 2212 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2213 | | '*' type_qualifier_list old_function_declarator
|
---|
| 2214 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2215 | | '(' old_function_ptr ')'
|
---|
| 2216 | { $$ = $2; }
|
---|
| 2217 | ;
|
---|
[51b73452] | 2218 |
|
---|
| 2219 | old_function_array:
|
---|
[4d51835] | 2220 | '(' old_function_ptr ')' array_dimension
|
---|
| 2221 | { $$ = $2->addArray( $4 ); }
|
---|
| 2222 | | '(' old_function_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2223 | { $$ = $2->addArray( $4 ); }
|
---|
| 2224 | | '(' old_function_array ')' // redundant parenthesis
|
---|
| 2225 | { $$ = $2; }
|
---|
| 2226 | ;
|
---|
[51b73452] | 2227 |
|
---|
[2871210] | 2228 | // This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
|
---|
[c11e31c] | 2229 | //
|
---|
[b87a5ed] | 2230 | // typedef int foo;
|
---|
| 2231 | // {
|
---|
| 2232 | // int foo; // redefine typedef name in new scope
|
---|
| 2233 | // }
|
---|
[c11e31c] | 2234 | //
|
---|
[de62360d] | 2235 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
|
---|
| 2236 | // and functions versus pointers to arrays and functions.
|
---|
[51b73452] | 2237 |
|
---|
[2871210] | 2238 | type_redeclarator:
|
---|
| 2239 | paren_type attribute_list_opt
|
---|
[1db21619] | 2240 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[2871210] | 2241 | | type_ptr
|
---|
| 2242 | | type_array attribute_list_opt
|
---|
[1db21619] | 2243 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[2871210] | 2244 | | type_function attribute_list_opt
|
---|
[1db21619] | 2245 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2246 | ;
|
---|
[51b73452] | 2247 |
|
---|
[2871210] | 2248 | paren_type:
|
---|
| 2249 | typedef
|
---|
| 2250 | | '(' paren_type ')'
|
---|
[4d51835] | 2251 | { $$ = $2; }
|
---|
| 2252 | ;
|
---|
[51b73452] | 2253 |
|
---|
[2871210] | 2254 | type_ptr:
|
---|
| 2255 | '*' type_redeclarator
|
---|
[4d51835] | 2256 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
[2871210] | 2257 | | '*' type_qualifier_list type_redeclarator
|
---|
[4d51835] | 2258 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
[2871210] | 2259 | | '(' type_ptr ')'
|
---|
[4d51835] | 2260 | { $$ = $2; }
|
---|
| 2261 | ;
|
---|
[51b73452] | 2262 |
|
---|
[2871210] | 2263 | type_array:
|
---|
| 2264 | paren_type array_dimension
|
---|
[4d51835] | 2265 | { $$ = $1->addArray( $2 ); }
|
---|
[2871210] | 2266 | | '(' type_ptr ')' array_dimension
|
---|
[4d51835] | 2267 | { $$ = $2->addArray( $4 ); }
|
---|
[2871210] | 2268 | | '(' type_array ')' multi_array_dimension // redundant parenthesis
|
---|
[4d51835] | 2269 | { $$ = $2->addArray( $4 ); }
|
---|
[2871210] | 2270 | | '(' type_array ')' // redundant parenthesis
|
---|
[4d51835] | 2271 | { $$ = $2; }
|
---|
| 2272 | ;
|
---|
[51b73452] | 2273 |
|
---|
[2871210] | 2274 | type_function:
|
---|
| 2275 | paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
[4d51835] | 2276 | { $$ = $1->addParamList( $4 ); }
|
---|
[2871210] | 2277 | | '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
[4d51835] | 2278 | { $$ = $2->addParamList( $6 ); }
|
---|
[2871210] | 2279 | | '(' type_function ')' // redundant parenthesis
|
---|
[4d51835] | 2280 | { $$ = $2; }
|
---|
| 2281 | ;
|
---|
[51b73452] | 2282 |
|
---|
[de62360d] | 2283 | // This pattern parses a declaration for a parameter variable or function prototype that is not redefining a typedef
|
---|
| 2284 | // name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes declaring an
|
---|
| 2285 | // array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
|
---|
| 2286 | // arrays and functions.
|
---|
[51b73452] | 2287 |
|
---|
| 2288 | identifier_parameter_declarator:
|
---|
[4d51835] | 2289 | paren_identifier attribute_list_opt
|
---|
[1db21619] | 2290 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2291 | | identifier_parameter_ptr
|
---|
| 2292 | | identifier_parameter_array attribute_list_opt
|
---|
[1db21619] | 2293 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2294 | | identifier_parameter_function attribute_list_opt
|
---|
[1db21619] | 2295 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2296 | ;
|
---|
[51b73452] | 2297 |
|
---|
| 2298 | identifier_parameter_ptr:
|
---|
[4d51835] | 2299 | '*' identifier_parameter_declarator
|
---|
| 2300 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2301 | | '*' type_qualifier_list identifier_parameter_declarator
|
---|
| 2302 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2303 | | '(' identifier_parameter_ptr ')'
|
---|
| 2304 | { $$ = $2; }
|
---|
| 2305 | ;
|
---|
[51b73452] | 2306 |
|
---|
| 2307 | identifier_parameter_array:
|
---|
[4d51835] | 2308 | paren_identifier array_parameter_dimension
|
---|
| 2309 | { $$ = $1->addArray( $2 ); }
|
---|
| 2310 | | '(' identifier_parameter_ptr ')' array_dimension
|
---|
| 2311 | { $$ = $2->addArray( $4 ); }
|
---|
| 2312 | | '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2313 | { $$ = $2->addArray( $4 ); }
|
---|
| 2314 | | '(' identifier_parameter_array ')' // redundant parenthesis
|
---|
| 2315 | { $$ = $2; }
|
---|
| 2316 | ;
|
---|
[51b73452] | 2317 |
|
---|
| 2318 | identifier_parameter_function:
|
---|
[4d51835] | 2319 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2320 | { $$ = $1->addParamList( $4 ); }
|
---|
| 2321 | | '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2322 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2323 | | '(' identifier_parameter_function ')' // redundant parenthesis
|
---|
| 2324 | { $$ = $2; }
|
---|
| 2325 | ;
|
---|
[b87a5ed] | 2326 |
|
---|
[de62360d] | 2327 | // This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
|
---|
| 2328 | // e.g.:
|
---|
[c11e31c] | 2329 | //
|
---|
[b87a5ed] | 2330 | // typedef int foo;
|
---|
| 2331 | // int f( int foo ); // redefine typedef name in new scope
|
---|
[c11e31c] | 2332 | //
|
---|
[de62360d] | 2333 | // and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern handles the
|
---|
| 2334 | // special meaning of parenthesis around a typedef name:
|
---|
[c11e31c] | 2335 | //
|
---|
[b87a5ed] | 2336 | // ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
|
---|
| 2337 | // parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
|
---|
| 2338 | // not as redundant parentheses around the identifier."
|
---|
[c11e31c] | 2339 | //
|
---|
| 2340 | // which precludes the following cases:
|
---|
| 2341 | //
|
---|
[b87a5ed] | 2342 | // typedef float T;
|
---|
[4d51835] | 2343 | // int f( int ( T [5] ) ); // see abstract_parameter_declarator
|
---|
[b87a5ed] | 2344 | // int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
|
---|
| 2345 | // int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
|
---|
| 2346 | // int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
|
---|
[c11e31c] | 2347 | //
|
---|
[de62360d] | 2348 | // In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
|
---|
| 2349 | // not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
|
---|
| 2350 | // functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
|
---|
| 2351 | // functions.
|
---|
[51b73452] | 2352 |
|
---|
[2871210] | 2353 | type_parameter_redeclarator:
|
---|
[4d51835] | 2354 | typedef attribute_list_opt
|
---|
[1db21619] | 2355 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[2871210] | 2356 | | type_parameter_ptr
|
---|
| 2357 | | type_parameter_array attribute_list_opt
|
---|
[1db21619] | 2358 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[2871210] | 2359 | | type_parameter_function attribute_list_opt
|
---|
[1db21619] | 2360 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2361 | ;
|
---|
[51b73452] | 2362 |
|
---|
| 2363 | typedef:
|
---|
[4d51835] | 2364 | TYPEDEFname
|
---|
| 2365 | {
|
---|
[de62360d] | 2366 | typedefTable.setNextIdentifier( *$1 );
|
---|
[4d51835] | 2367 | $$ = DeclarationNode::newName( $1 );
|
---|
| 2368 | }
|
---|
[2871210] | 2369 | | TYPEGENname
|
---|
| 2370 | {
|
---|
| 2371 | typedefTable.setNextIdentifier( *$1 );
|
---|
| 2372 | $$ = DeclarationNode::newName( $1 );
|
---|
| 2373 | }
|
---|
[4d51835] | 2374 | ;
|
---|
[51b73452] | 2375 |
|
---|
[2871210] | 2376 | type_parameter_ptr:
|
---|
| 2377 | '*' type_parameter_redeclarator
|
---|
[4d51835] | 2378 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
[2871210] | 2379 | | '*' type_qualifier_list type_parameter_redeclarator
|
---|
[4d51835] | 2380 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
[2871210] | 2381 | | '(' type_parameter_ptr ')'
|
---|
[4d51835] | 2382 | { $$ = $2; }
|
---|
| 2383 | ;
|
---|
[51b73452] | 2384 |
|
---|
[2871210] | 2385 | type_parameter_array:
|
---|
[4d51835] | 2386 | typedef array_parameter_dimension
|
---|
| 2387 | { $$ = $1->addArray( $2 ); }
|
---|
[2871210] | 2388 | | '(' type_parameter_ptr ')' array_parameter_dimension
|
---|
[4d51835] | 2389 | { $$ = $2->addArray( $4 ); }
|
---|
| 2390 | ;
|
---|
[51b73452] | 2391 |
|
---|
[2871210] | 2392 | type_parameter_function:
|
---|
[4d51835] | 2393 | typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2394 | { $$ = $1->addParamList( $4 ); }
|
---|
[2871210] | 2395 | | '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
[4d51835] | 2396 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2397 | ;
|
---|
[b87a5ed] | 2398 |
|
---|
[de62360d] | 2399 | // This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
|
---|
| 2400 | // which the type applies, e.g.:
|
---|
[c11e31c] | 2401 | //
|
---|
[b87a5ed] | 2402 | // sizeof( int );
|
---|
| 2403 | // sizeof( int [10] );
|
---|
[c11e31c] | 2404 | //
|
---|
[de62360d] | 2405 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
|
---|
| 2406 | // and functions versus pointers to arrays and functions.
|
---|
[51b73452] | 2407 |
|
---|
| 2408 | abstract_declarator:
|
---|
[4d51835] | 2409 | abstract_ptr
|
---|
| 2410 | | abstract_array attribute_list_opt
|
---|
[1db21619] | 2411 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2412 | | abstract_function attribute_list_opt
|
---|
[1db21619] | 2413 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2414 | ;
|
---|
[51b73452] | 2415 |
|
---|
| 2416 | abstract_ptr:
|
---|
[4d51835] | 2417 | '*'
|
---|
| 2418 | { $$ = DeclarationNode::newPointer( 0 ); }
|
---|
| 2419 | | '*' type_qualifier_list
|
---|
| 2420 | { $$ = DeclarationNode::newPointer( $2 ); }
|
---|
| 2421 | | '*' abstract_declarator
|
---|
| 2422 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2423 | | '*' type_qualifier_list abstract_declarator
|
---|
| 2424 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2425 | | '(' abstract_ptr ')'
|
---|
| 2426 | { $$ = $2; }
|
---|
| 2427 | ;
|
---|
[51b73452] | 2428 |
|
---|
| 2429 | abstract_array:
|
---|
[4d51835] | 2430 | array_dimension
|
---|
| 2431 | | '(' abstract_ptr ')' array_dimension
|
---|
| 2432 | { $$ = $2->addArray( $4 ); }
|
---|
| 2433 | | '(' abstract_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2434 | { $$ = $2->addArray( $4 ); }
|
---|
| 2435 | | '(' abstract_array ')' // redundant parenthesis
|
---|
| 2436 | { $$ = $2; }
|
---|
| 2437 | ;
|
---|
[51b73452] | 2438 |
|
---|
| 2439 | abstract_function:
|
---|
[4d51835] | 2440 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2441 | { $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); }
|
---|
| 2442 | | '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2443 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2444 | | '(' abstract_function ')' // redundant parenthesis
|
---|
| 2445 | { $$ = $2; }
|
---|
| 2446 | ;
|
---|
[51b73452] | 2447 |
|
---|
| 2448 | array_dimension:
|
---|
[4d51835] | 2449 | // Only the first dimension can be empty.
|
---|
[2871210] | 2450 | '[' ']'
|
---|
[4d51835] | 2451 | { $$ = DeclarationNode::newArray( 0, 0, false ); }
|
---|
[2871210] | 2452 | | '[' ']' multi_array_dimension
|
---|
| 2453 | { $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
|
---|
[4d51835] | 2454 | | multi_array_dimension
|
---|
| 2455 | ;
|
---|
[51b73452] | 2456 |
|
---|
| 2457 | multi_array_dimension:
|
---|
[4d51835] | 2458 | '[' push assignment_expression pop ']'
|
---|
| 2459 | { $$ = DeclarationNode::newArray( $3, 0, false ); }
|
---|
| 2460 | | '[' push '*' pop ']' // C99
|
---|
| 2461 | { $$ = DeclarationNode::newVarArray( 0 ); }
|
---|
| 2462 | | multi_array_dimension '[' push assignment_expression pop ']'
|
---|
| 2463 | { $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
|
---|
| 2464 | | multi_array_dimension '[' push '*' pop ']' // C99
|
---|
| 2465 | { $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
|
---|
| 2466 | ;
|
---|
[51b73452] | 2467 |
|
---|
[c11e31c] | 2468 | // This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
|
---|
| 2469 | // identifier to which the type applies, e.g.:
|
---|
| 2470 | //
|
---|
[b87a5ed] | 2471 | // int f( int ); // abstract variable parameter; no parameter name specified
|
---|
| 2472 | // int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
|
---|
[c11e31c] | 2473 | //
|
---|
[de62360d] | 2474 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
|
---|
| 2475 | // and functions versus pointers to arrays and functions.
|
---|
[51b73452] | 2476 |
|
---|
| 2477 | abstract_parameter_declarator:
|
---|
[4d51835] | 2478 | abstract_parameter_ptr
|
---|
| 2479 | | abstract_parameter_array attribute_list_opt
|
---|
[1db21619] | 2480 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2481 | | abstract_parameter_function attribute_list_opt
|
---|
[1db21619] | 2482 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2483 | ;
|
---|
[51b73452] | 2484 |
|
---|
| 2485 | abstract_parameter_ptr:
|
---|
[4d51835] | 2486 | '*'
|
---|
| 2487 | { $$ = DeclarationNode::newPointer( 0 ); }
|
---|
| 2488 | | '*' type_qualifier_list
|
---|
| 2489 | { $$ = DeclarationNode::newPointer( $2 ); }
|
---|
| 2490 | | '*' abstract_parameter_declarator
|
---|
| 2491 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2492 | | '*' type_qualifier_list abstract_parameter_declarator
|
---|
| 2493 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2494 | | '(' abstract_parameter_ptr ')'
|
---|
| 2495 | { $$ = $2; }
|
---|
| 2496 | ;
|
---|
[51b73452] | 2497 |
|
---|
| 2498 | abstract_parameter_array:
|
---|
[4d51835] | 2499 | array_parameter_dimension
|
---|
| 2500 | | '(' abstract_parameter_ptr ')' array_parameter_dimension
|
---|
| 2501 | { $$ = $2->addArray( $4 ); }
|
---|
| 2502 | | '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2503 | { $$ = $2->addArray( $4 ); }
|
---|
| 2504 | | '(' abstract_parameter_array ')' // redundant parenthesis
|
---|
| 2505 | { $$ = $2; }
|
---|
| 2506 | ;
|
---|
[51b73452] | 2507 |
|
---|
| 2508 | abstract_parameter_function:
|
---|
[4d51835] | 2509 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2510 | { $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); }
|
---|
| 2511 | | '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2512 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2513 | | '(' abstract_parameter_function ')' // redundant parenthesis
|
---|
| 2514 | { $$ = $2; }
|
---|
| 2515 | ;
|
---|
[51b73452] | 2516 |
|
---|
| 2517 | array_parameter_dimension:
|
---|
[4d51835] | 2518 | // Only the first dimension can be empty or have qualifiers.
|
---|
| 2519 | array_parameter_1st_dimension
|
---|
| 2520 | | array_parameter_1st_dimension multi_array_dimension
|
---|
| 2521 | { $$ = $1->addArray( $2 ); }
|
---|
| 2522 | | multi_array_dimension
|
---|
| 2523 | ;
|
---|
[51b73452] | 2524 |
|
---|
[c11e31c] | 2525 | // The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
|
---|
| 2526 | //
|
---|
[de62360d] | 2527 | // ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
|
---|
| 2528 | // a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
|
---|
[51b73452] | 2529 |
|
---|
| 2530 | array_parameter_1st_dimension:
|
---|
[2871210] | 2531 | '[' ']'
|
---|
[4d51835] | 2532 | { $$ = DeclarationNode::newArray( 0, 0, false ); }
|
---|
| 2533 | // multi_array_dimension handles the '[' '*' ']' case
|
---|
| 2534 | | '[' push type_qualifier_list '*' pop ']' // remaining C99
|
---|
| 2535 | { $$ = DeclarationNode::newVarArray( $3 ); }
|
---|
| 2536 | | '[' push type_qualifier_list pop ']'
|
---|
| 2537 | { $$ = DeclarationNode::newArray( 0, $3, false ); }
|
---|
| 2538 | // multi_array_dimension handles the '[' assignment_expression ']' case
|
---|
| 2539 | | '[' push type_qualifier_list assignment_expression pop ']'
|
---|
| 2540 | { $$ = DeclarationNode::newArray( $4, $3, false ); }
|
---|
| 2541 | | '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
|
---|
| 2542 | { $$ = DeclarationNode::newArray( $5, $4, true ); }
|
---|
| 2543 | | '[' push type_qualifier_list STATIC assignment_expression pop ']'
|
---|
| 2544 | { $$ = DeclarationNode::newArray( $5, $3, true ); }
|
---|
| 2545 | ;
|
---|
[b87a5ed] | 2546 |
|
---|
[de62360d] | 2547 | // This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type applies,
|
---|
| 2548 | // e.g.:
|
---|
[c11e31c] | 2549 | //
|
---|
[b87a5ed] | 2550 | // sizeof( int ); // abstract variable; no identifier name specified
|
---|
[c11e31c] | 2551 | //
|
---|
[de62360d] | 2552 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
|
---|
| 2553 | // and functions versus pointers to arrays and functions.
|
---|
[51b73452] | 2554 |
|
---|
| 2555 | variable_abstract_declarator:
|
---|
[4d51835] | 2556 | variable_abstract_ptr
|
---|
| 2557 | | variable_abstract_array attribute_list_opt
|
---|
[1db21619] | 2558 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2559 | | variable_abstract_function attribute_list_opt
|
---|
[1db21619] | 2560 | { $$ = $1->addQualifiers( $2 ); }
|
---|
[4d51835] | 2561 | ;
|
---|
[51b73452] | 2562 |
|
---|
| 2563 | variable_abstract_ptr:
|
---|
[4d51835] | 2564 | '*'
|
---|
| 2565 | { $$ = DeclarationNode::newPointer( 0 ); }
|
---|
| 2566 | | '*' type_qualifier_list
|
---|
| 2567 | { $$ = DeclarationNode::newPointer( $2 ); }
|
---|
| 2568 | | '*' variable_abstract_declarator
|
---|
| 2569 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2570 | | '*' type_qualifier_list variable_abstract_declarator
|
---|
| 2571 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
|
---|
| 2572 | | '(' variable_abstract_ptr ')'
|
---|
| 2573 | { $$ = $2; }
|
---|
| 2574 | ;
|
---|
[51b73452] | 2575 |
|
---|
| 2576 | variable_abstract_array:
|
---|
[4d51835] | 2577 | array_dimension
|
---|
| 2578 | | '(' variable_abstract_ptr ')' array_dimension
|
---|
| 2579 | { $$ = $2->addArray( $4 ); }
|
---|
| 2580 | | '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
|
---|
| 2581 | { $$ = $2->addArray( $4 ); }
|
---|
| 2582 | | '(' variable_abstract_array ')' // redundant parenthesis
|
---|
| 2583 | { $$ = $2; }
|
---|
| 2584 | ;
|
---|
[51b73452] | 2585 |
|
---|
| 2586 | variable_abstract_function:
|
---|
[4d51835] | 2587 | '(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
|
---|
| 2588 | { $$ = $2->addParamList( $6 ); }
|
---|
| 2589 | | '(' variable_abstract_function ')' // redundant parenthesis
|
---|
| 2590 | { $$ = $2; }
|
---|
| 2591 | ;
|
---|
[b87a5ed] | 2592 |
|
---|
[de62360d] | 2593 | // This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
|
---|
| 2594 | // identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
|
---|
[b87a5ed] | 2595 |
|
---|
| 2596 | new_identifier_parameter_declarator_tuple: // CFA
|
---|
[4d51835] | 2597 | new_identifier_parameter_declarator_no_tuple
|
---|
| 2598 | | new_abstract_tuple
|
---|
| 2599 | | type_qualifier_list new_abstract_tuple
|
---|
| 2600 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 2601 | ;
|
---|
[b87a5ed] | 2602 |
|
---|
| 2603 | new_identifier_parameter_declarator_no_tuple: // CFA
|
---|
[4d51835] | 2604 | new_identifier_parameter_ptr
|
---|
| 2605 | | new_identifier_parameter_array
|
---|
| 2606 | ;
|
---|
[b87a5ed] | 2607 |
|
---|
| 2608 | new_identifier_parameter_ptr: // CFA
|
---|
[4d51835] | 2609 | '*' type_specifier
|
---|
| 2610 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2611 | | type_qualifier_list '*' type_specifier
|
---|
| 2612 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2613 | | '*' new_abstract_function
|
---|
| 2614 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2615 | | type_qualifier_list '*' new_abstract_function
|
---|
| 2616 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2617 | | '*' new_identifier_parameter_declarator_tuple
|
---|
| 2618 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2619 | | type_qualifier_list '*' new_identifier_parameter_declarator_tuple
|
---|
| 2620 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2621 | ;
|
---|
[b87a5ed] | 2622 |
|
---|
| 2623 | new_identifier_parameter_array: // CFA
|
---|
[de62360d] | 2624 | // Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
|
---|
| 2625 | // shift/reduce conflict with new-style empty (void) function return type.
|
---|
[2871210] | 2626 | '[' ']' type_specifier
|
---|
| 2627 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2628 | | new_array_parameter_1st_dimension type_specifier
|
---|
| 2629 | { $$ = $2->addNewArray( $1 ); }
|
---|
[2871210] | 2630 | | '[' ']' multi_array_dimension type_specifier
|
---|
| 2631 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2632 | | new_array_parameter_1st_dimension multi_array_dimension type_specifier
|
---|
| 2633 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
|
---|
| 2634 | | multi_array_dimension type_specifier
|
---|
| 2635 | { $$ = $2->addNewArray( $1 ); }
|
---|
[2871210] | 2636 | | '[' ']' new_identifier_parameter_ptr
|
---|
| 2637 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2638 | | new_array_parameter_1st_dimension new_identifier_parameter_ptr
|
---|
| 2639 | { $$ = $2->addNewArray( $1 ); }
|
---|
[2871210] | 2640 | | '[' ']' multi_array_dimension new_identifier_parameter_ptr
|
---|
| 2641 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2642 | | new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr
|
---|
| 2643 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
|
---|
| 2644 | | multi_array_dimension new_identifier_parameter_ptr
|
---|
| 2645 | { $$ = $2->addNewArray( $1 ); }
|
---|
| 2646 | ;
|
---|
[51b73452] | 2647 |
|
---|
| 2648 | new_array_parameter_1st_dimension:
|
---|
[4d51835] | 2649 | '[' push type_qualifier_list '*' pop ']' // remaining C99
|
---|
| 2650 | { $$ = DeclarationNode::newVarArray( $3 ); }
|
---|
| 2651 | | '[' push type_qualifier_list assignment_expression pop ']'
|
---|
| 2652 | { $$ = DeclarationNode::newArray( $4, $3, false ); }
|
---|
| 2653 | | '[' push declaration_qualifier_list assignment_expression pop ']'
|
---|
| 2654 | // declaration_qualifier_list must be used because of shift/reduce conflict with
|
---|
| 2655 | // assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
|
---|
| 2656 | // appear in this context.
|
---|
| 2657 | { $$ = DeclarationNode::newArray( $4, $3, true ); }
|
---|
| 2658 | | '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
|
---|
| 2659 | { $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
|
---|
| 2660 | ;
|
---|
[b87a5ed] | 2661 |
|
---|
[de62360d] | 2662 | // This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
|
---|
| 2663 | // identifier to which the type applies, e.g.:
|
---|
[c11e31c] | 2664 | //
|
---|
[b87a5ed] | 2665 | // [int] f( int ); // abstract variable parameter; no parameter name specified
|
---|
| 2666 | // [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
|
---|
[c11e31c] | 2667 | //
|
---|
| 2668 | // These rules need LR(3):
|
---|
| 2669 | //
|
---|
[2871210] | 2670 | // new_abstract_tuple identifier_or_type_name
|
---|
| 2671 | // '[' new_parameter_list ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
|
---|
[c11e31c] | 2672 | //
|
---|
| 2673 | // since a function return type can be syntactically identical to a tuple type:
|
---|
| 2674 | //
|
---|
[b87a5ed] | 2675 | // [int, int] t;
|
---|
| 2676 | // [int, int] f( int );
|
---|
[c11e31c] | 2677 | //
|
---|
[2871210] | 2678 | // Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
|
---|
[de62360d] | 2679 | // new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
|
---|
| 2680 | // lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and tuple declarations are
|
---|
| 2681 | // duplicated when appearing with new_function_specifier.
|
---|
[b87a5ed] | 2682 |
|
---|
| 2683 | new_abstract_declarator_tuple: // CFA
|
---|
[4d51835] | 2684 | new_abstract_tuple
|
---|
| 2685 | | type_qualifier_list new_abstract_tuple
|
---|
| 2686 | { $$ = $2->addQualifiers( $1 ); }
|
---|
| 2687 | | new_abstract_declarator_no_tuple
|
---|
| 2688 | ;
|
---|
[b87a5ed] | 2689 |
|
---|
| 2690 | new_abstract_declarator_no_tuple: // CFA
|
---|
[4d51835] | 2691 | new_abstract_ptr
|
---|
| 2692 | | new_abstract_array
|
---|
| 2693 | ;
|
---|
[b87a5ed] | 2694 |
|
---|
| 2695 | new_abstract_ptr: // CFA
|
---|
[4d51835] | 2696 | '*' type_specifier
|
---|
| 2697 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2698 | | type_qualifier_list '*' type_specifier
|
---|
| 2699 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2700 | | '*' new_abstract_function
|
---|
| 2701 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2702 | | type_qualifier_list '*' new_abstract_function
|
---|
| 2703 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2704 | | '*' new_abstract_declarator_tuple
|
---|
| 2705 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
|
---|
| 2706 | | type_qualifier_list '*' new_abstract_declarator_tuple
|
---|
| 2707 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
|
---|
| 2708 | ;
|
---|
[b87a5ed] | 2709 |
|
---|
| 2710 | new_abstract_array: // CFA
|
---|
[de62360d] | 2711 | // Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
|
---|
| 2712 | // empty (void) function return type.
|
---|
[2871210] | 2713 | '[' ']' type_specifier
|
---|
| 2714 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
| 2715 | | '[' ']' multi_array_dimension type_specifier
|
---|
| 2716 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2717 | | multi_array_dimension type_specifier
|
---|
| 2718 | { $$ = $2->addNewArray( $1 ); }
|
---|
[2871210] | 2719 | | '[' ']' new_abstract_ptr
|
---|
| 2720 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
| 2721 | | '[' ']' multi_array_dimension new_abstract_ptr
|
---|
| 2722 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
|
---|
[4d51835] | 2723 | | multi_array_dimension new_abstract_ptr
|
---|
| 2724 | { $$ = $2->addNewArray( $1 ); }
|
---|
| 2725 | ;
|
---|
[b87a5ed] | 2726 |
|
---|
| 2727 | new_abstract_tuple: // CFA
|
---|
[4d51835] | 2728 | '[' push new_abstract_parameter_list pop ']'
|
---|
| 2729 | { $$ = DeclarationNode::newTuple( $3 ); }
|
---|
| 2730 | ;
|
---|
[b87a5ed] | 2731 |
|
---|
| 2732 | new_abstract_function: // CFA
|
---|
[2871210] | 2733 | '[' ']' '(' new_parameter_type_list_opt ')'
|
---|
| 2734 | { $$ = DeclarationNode::newFunction( 0, DeclarationNode::newTuple( 0 ), $4, 0 ); }
|
---|
[4d51835] | 2735 | | new_abstract_tuple '(' push new_parameter_type_list_opt pop ')'
|
---|
| 2736 | { $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); }
|
---|
| 2737 | | new_function_return '(' push new_parameter_type_list_opt pop ')'
|
---|
| 2738 | { $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); }
|
---|
| 2739 | ;
|
---|
[b87a5ed] | 2740 |
|
---|
[de62360d] | 2741 | // 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
|
---|
| 2742 | // each declaration, and in the specifier-qualifier list in each structure declaration and type name."
|
---|
[c11e31c] | 2743 | //
|
---|
[de62360d] | 2744 | // 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
|
---|
| 2745 | // the declaration specifiers in a declaration is an obsolescent feature."
|
---|
[c11e31c] | 2746 | //
|
---|
| 2747 | // 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
|
---|
| 2748 | // prototype-format parameter type declarators) is an obsolescent feature."
|
---|
| 2749 | //
|
---|
[de62360d] | 2750 | // 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
|
---|
| 2751 | // declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
|
---|
[51b73452] | 2752 |
|
---|
[c11e31c] | 2753 | //************************* MISCELLANEOUS ********************************
|
---|
[51b73452] | 2754 |
|
---|
[b87a5ed] | 2755 | comma_opt: // redundant comma
|
---|
[4d51835] | 2756 | // empty
|
---|
| 2757 | | ','
|
---|
| 2758 | ;
|
---|
[51b73452] | 2759 |
|
---|
| 2760 | assignment_opt:
|
---|
[4d51835] | 2761 | // empty
|
---|
| 2762 | { $$ = 0; }
|
---|
| 2763 | | '=' assignment_expression
|
---|
| 2764 | { $$ = $2; }
|
---|
| 2765 | ;
|
---|
[51b73452] | 2766 |
|
---|
| 2767 | %%
|
---|
[c11e31c] | 2768 | // ----end of grammar----
|
---|
[51b73452] | 2769 |
|
---|
[5f2f2d7] | 2770 | void yyerror( const char * ) {
|
---|
| 2771 | std::cout << "Error ";
|
---|
[b87a5ed] | 2772 | if ( yyfilename ) {
|
---|
[5f2f2d7] | 2773 | std::cout << "in file " << yyfilename << " ";
|
---|
| 2774 | } // if
|
---|
[b1d6dd5] | 2775 | std::cout << "at line " << yylineno << " reading token \"" << (yytext[0] == '\0' ? "EOF" : yytext) << "\"" << std::endl;
|
---|
[51b73452] | 2776 | }
|
---|
| 2777 |
|
---|
[c11e31c] | 2778 | // Local Variables: //
|
---|
[b87a5ed] | 2779 | // mode: c++ //
|
---|
[de62360d] | 2780 | // tab-width: 4 //
|
---|
[c11e31c] | 2781 | // compile-command: "make install" //
|
---|
| 2782 | // End: //
|
---|