[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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[974906e2] | 7 | // cfa.y -- |
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| 8 | // |
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[c11e31c] | 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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[58dd019] | 12 | // Last Modified On : Tue Dec 13 14:14:52 2016 |
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| 13 | // Update Count : 2081 |
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[974906e2] | 14 | // |
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[c11e31c] | 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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[e7aed49] | 33 | // 1. designation with and without '=' (use ':' instead) |
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| 34 | // 2. attributes not allowed in parenthesis of declarator |
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[c11e31c] | 35 | // |
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[de62360d] | 36 | // All of the syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall |
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| 37 | // (CFA), which fixes several of C's outstanding problems and extends C with many modern language concepts. All of the |
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| 38 | // syntactic extensions for CFA C are marked with the comment "CFA". As noted above, there is one unreconcileable |
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| 39 | // parsing problem between C99 and CFA with respect to designators; this is discussed in detail before the "designation" |
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| 40 | // grammar rule. |
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[51b7345] | 41 | |
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| 42 | %{ |
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[b87a5ed] | 43 | #define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time |
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| 44 | #define YYDEBUG 1 // get the pretty debugging code to compile |
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[51b7345] | 45 | |
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| 46 | #undef __GNUC_MINOR__ |
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| 47 | |
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| 48 | #include <cstdio> |
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| 49 | #include <stack> |
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| 50 | #include "lex.h" |
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[984dce6] | 51 | #include "parser.h" |
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[51b7345] | 52 | #include "ParseNode.h" |
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[984dce6] | 53 | #include "TypedefTable.h" |
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[1db21619] | 54 | #include "TypeData.h" |
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[51b7345] | 55 | #include "LinkageSpec.h" |
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[2298f728] | 56 | using namespace std; |
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[51b7345] | 57 | |
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[cbaee0d] | 58 | extern DeclarationNode * parseTree; |
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[8b7ee09] | 59 | extern LinkageSpec::Spec linkage; |
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[0da3e2c] | 60 | extern TypedefTable typedefTable; |
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| 61 | |
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[2298f728] | 62 | stack< LinkageSpec::Spec > linkageStack; |
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[7bf7fb9] | 63 | |
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[2298f728] | 64 | void appendStr( string *to, string *from ) { |
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[7bf7fb9] | 65 | // "abc" "def" "ghi" => "abcdefghi", remove new text from quotes and insert before last quote in old string. |
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[ab57786] | 66 | to->insert( to->length() - 1, from->substr( 1, from->length() - 2 ) ); |
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[7bf7fb9] | 67 | } // appendStr |
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[51b7345] | 68 | %} |
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| 69 | |
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[c11e31c] | 70 | //************************* TERMINAL TOKENS ******************************** |
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[51b7345] | 71 | |
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[c11e31c] | 72 | // keywords |
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[51b7345] | 73 | %token TYPEDEF |
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| 74 | %token AUTO EXTERN REGISTER STATIC |
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[b87a5ed] | 75 | %token INLINE // C99 |
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| 76 | %token FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1) |
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[51b7345] | 77 | %token CONST VOLATILE |
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[b87a5ed] | 78 | %token RESTRICT // C99 |
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| 79 | %token FORALL LVALUE // CFA |
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[3a2128f] | 80 | %token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED ZERO_T ONE_T |
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[90c3b1c] | 81 | %token VALIST // GCC |
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[b87a5ed] | 82 | %token BOOL COMPLEX IMAGINARY // C99 |
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| 83 | %token TYPEOF LABEL // GCC |
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[51b7345] | 84 | %token ENUM STRUCT UNION |
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[e7aed49] | 85 | %token OTYPE FTYPE DTYPE TRAIT // CFA |
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[5721a6d] | 86 | %token SIZEOF OFFSETOF |
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[b87a5ed] | 87 | %token ATTRIBUTE EXTENSION // GCC |
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[51b7345] | 88 | %token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN |
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[02e5ab6] | 89 | %token CHOOSE DISABLE ENABLE FALLTHRU TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT // CFA |
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[b87a5ed] | 90 | %token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1) |
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[c11e31c] | 91 | %token ALIGNAS ALIGNOF ATOMIC GENERIC NORETURN STATICASSERT THREADLOCAL // C11 |
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[51b7345] | 92 | |
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[c11e31c] | 93 | // names and constants: lexer differentiates between identifier and typedef names |
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[b87a5ed] | 94 | %token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname |
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| 95 | %token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname |
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[1b29996] | 96 | %token<tok> INTEGERconstant CHARACTERconstant STRINGliteral |
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| 97 | // Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and |
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| 98 | // overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically |
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| 99 | // converted into the tuple index (.)(1). e.g., 3.x |
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| 100 | %token<tok> REALDECIMALconstant REALFRACTIONconstant FLOATINGconstant |
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[b87a5ed] | 101 | %token<tok> ZERO ONE // CFA |
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[51b7345] | 102 | |
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[c11e31c] | 103 | // multi-character operators |
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[b87a5ed] | 104 | %token ARROW // -> |
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| 105 | %token ICR DECR // ++ -- |
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| 106 | %token LS RS // << >> |
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| 107 | %token LE GE EQ NE // <= >= == != |
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| 108 | %token ANDAND OROR // && || |
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| 109 | %token ELLIPSIS // ... |
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| 110 | |
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| 111 | %token MULTassign DIVassign MODassign // *= /= %=/ |
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| 112 | %token PLUSassign MINUSassign // += -= |
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| 113 | %token LSassign RSassign // <<= >>= |
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| 114 | %token ANDassign ERassign ORassign // &= ^= |= |
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[51b7345] | 115 | |
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[e7aed49] | 116 | %token ATassign // @= |
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[097e2b0] | 117 | |
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[c11e31c] | 118 | // Types declaration |
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[51b7345] | 119 | %union |
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| 120 | { |
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[b87a5ed] | 121 | Token tok; |
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| 122 | ParseNode *pn; |
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| 123 | ExpressionNode *en; |
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| 124 | DeclarationNode *decl; |
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[68cd1ce] | 125 | DeclarationNode::Aggregate aggKey; |
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[b87a5ed] | 126 | DeclarationNode::TypeClass tclass; |
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| 127 | StatementNode *sn; |
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[d1625f8] | 128 | ConstantExpr *constant; |
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[2f22cc4] | 129 | ForCtl *fctl; |
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[7f5566b] | 130 | LabelNode *label; |
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[b87a5ed] | 131 | InitializerNode *in; |
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[d9e2280] | 132 | OperKinds op; |
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[ab57786] | 133 | std::string *str; |
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[7f5566b] | 134 | bool flag; |
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[51b7345] | 135 | } |
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| 136 | |
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[097e2b0] | 137 | %type<tok> identifier no_01_identifier no_attr_identifier zero_one |
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[2871210] | 138 | %type<tok> identifier_or_type_name no_attr_identifier_or_type_name no_01_identifier_or_type_name |
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[ab57786] | 139 | %type<constant> string_literal |
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| 140 | %type<str> string_literal_list |
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[51b7345] | 141 | |
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[c11e31c] | 142 | // expressions |
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[d1625f8] | 143 | %type<en> constant |
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[b87a5ed] | 144 | %type<en> tuple tuple_expression_list |
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[9706554] | 145 | %type<op> ptrref_operator unary_operator assignment_operator |
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[b87a5ed] | 146 | %type<en> primary_expression postfix_expression unary_expression |
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| 147 | %type<en> cast_expression multiplicative_expression additive_expression shift_expression |
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| 148 | %type<en> relational_expression equality_expression AND_expression exclusive_OR_expression |
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| 149 | %type<en> inclusive_OR_expression logical_AND_expression logical_OR_expression conditional_expression |
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| 150 | %type<en> constant_expression assignment_expression assignment_expression_opt |
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| 151 | %type<en> comma_expression comma_expression_opt |
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[2f22cc4] | 152 | %type<en> argument_expression_list argument_expression assignment_opt |
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| 153 | %type<fctl> for_control_expression |
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[51b7345] | 154 | %type<en> subrange |
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[58dd019] | 155 | %type<constant> asm_name_opt |
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[7f5566b] | 156 | %type<en> asm_operands_opt asm_operands_list asm_operand |
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| 157 | %type<label> label_list |
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[d1625f8] | 158 | %type<en> asm_clobbers_list_opt |
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[7f5566b] | 159 | %type<flag> asm_volatile_opt |
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[51b7345] | 160 | |
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[c11e31c] | 161 | // statements |
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[b87a5ed] | 162 | %type<sn> labeled_statement compound_statement expression_statement selection_statement |
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[097e2b0] | 163 | %type<sn> iteration_statement jump_statement exception_statement asm_statement |
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[b87a5ed] | 164 | %type<sn> fall_through_opt fall_through |
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| 165 | %type<sn> statement statement_list |
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| 166 | %type<sn> block_item_list block_item |
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[51b7345] | 167 | %type<sn> case_clause |
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[8688ce1] | 168 | %type<en> case_value |
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| 169 | %type<sn> case_value_list case_label case_label_list |
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[b87a5ed] | 170 | %type<sn> switch_clause_list_opt switch_clause_list choose_clause_list_opt choose_clause_list |
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[1d4580a] | 171 | %type<sn> handler_list handler_clause finally_clause |
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[51b7345] | 172 | |
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[c11e31c] | 173 | // declarations |
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[51b7345] | 174 | %type<decl> abstract_array abstract_declarator abstract_function abstract_parameter_array |
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| 175 | %type<decl> abstract_parameter_declaration abstract_parameter_declarator abstract_parameter_function |
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| 176 | %type<decl> abstract_parameter_ptr abstract_ptr |
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| 177 | |
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| 178 | %type<aggKey> aggregate_key |
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| 179 | %type<decl> aggregate_name |
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| 180 | |
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| 181 | %type<decl> array_dimension array_parameter_1st_dimension array_parameter_dimension multi_array_dimension |
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| 182 | |
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| 183 | %type<decl> assertion assertion_list_opt |
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| 184 | |
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| 185 | %type<en> bit_subrange_size_opt bit_subrange_size |
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| 186 | |
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| 187 | %type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type_name indirect_type_name |
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| 188 | |
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[4040425] | 189 | %type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier |
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[51b7345] | 190 | |
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| 191 | %type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list |
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| 192 | %type<decl> declaration_specifier declarator declaring_list |
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| 193 | |
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| 194 | %type<decl> elaborated_type_name |
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| 195 | |
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| 196 | %type<decl> enumerator_list enum_name |
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| 197 | %type<en> enumerator_value_opt |
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| 198 | |
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| 199 | %type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt |
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| 200 | |
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| 201 | %type<decl> field_declaration field_declaration_list field_declarator field_declaring_list |
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[8780e30] | 202 | %type<en> field field_list field_name fraction_constants |
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[51b7345] | 203 | |
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[4d51835] | 204 | %type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr |
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[51b7345] | 205 | |
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| 206 | %type<decl> identifier_parameter_array identifier_parameter_declarator identifier_parameter_function |
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| 207 | %type<decl> identifier_parameter_ptr identifier_list |
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| 208 | |
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| 209 | %type<decl> new_abstract_array new_abstract_declarator_no_tuple new_abstract_declarator_tuple |
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| 210 | %type<decl> new_abstract_function new_abstract_parameter_declaration new_abstract_parameter_list |
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| 211 | %type<decl> new_abstract_ptr new_abstract_tuple |
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| 212 | |
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| 213 | %type<decl> new_array_parameter_1st_dimension |
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| 214 | |
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[4040425] | 215 | %type<decl> new_trait_declaring_list new_declaration new_field_declaring_list |
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[51b7345] | 216 | %type<decl> new_function_declaration new_function_return new_function_specifier |
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| 217 | |
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| 218 | %type<decl> new_identifier_parameter_array new_identifier_parameter_declarator_no_tuple |
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| 219 | %type<decl> new_identifier_parameter_declarator_tuple new_identifier_parameter_ptr |
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| 220 | |
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| 221 | %type<decl> new_parameter_declaration new_parameter_list new_parameter_type_list new_parameter_type_list_opt |
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| 222 | |
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| 223 | %type<decl> new_typedef_declaration new_variable_declaration new_variable_specifier |
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| 224 | |
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| 225 | %type<decl> old_declaration old_declaration_list old_declaration_list_opt old_function_array |
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| 226 | %type<decl> old_function_declarator old_function_no_ptr old_function_ptr |
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| 227 | |
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| 228 | %type<decl> parameter_declaration parameter_list parameter_type_list |
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| 229 | %type<decl> parameter_type_list_opt |
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| 230 | |
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[2871210] | 231 | %type<decl> paren_identifier paren_type |
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[51b7345] | 232 | |
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[0da3e2c] | 233 | %type<decl> storage_class storage_class_list |
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[51b7345] | 234 | |
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| 235 | %type<decl> sue_declaration_specifier sue_type_specifier |
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| 236 | |
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| 237 | %type<tclass> type_class |
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| 238 | %type<decl> type_declarator type_declarator_name type_declaring_list |
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| 239 | |
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[2871210] | 240 | %type<decl> typedef type_array typedef_declaration typedef_declaration_specifier typedef_expression |
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| 241 | %type<decl> type_function type_parameter_array type_parameter_function type_parameter_ptr |
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[c6b1105] | 242 | %type<decl> type_parameter_redeclarator type_ptr variable_type_redeclarator typedef_type_specifier |
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[2871210] | 243 | %type<decl> typegen_declaration_specifier typegen_type_specifier typegen_name |
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[51b7345] | 244 | |
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| 245 | %type<decl> type_name type_name_no_function |
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| 246 | %type<decl> type_parameter type_parameter_list |
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| 247 | |
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| 248 | %type<en> type_name_list |
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| 249 | |
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| 250 | %type<decl> type_qualifier type_qualifier_name type_qualifier_list type_qualifier_list_opt type_specifier |
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| 251 | |
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| 252 | %type<decl> variable_abstract_array variable_abstract_declarator variable_abstract_function |
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| 253 | %type<decl> variable_abstract_ptr variable_array variable_declarator variable_function variable_ptr |
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| 254 | |
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[1db21619] | 255 | %type<decl> attribute_list_opt attribute_list attribute |
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| 256 | |
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[c11e31c] | 257 | // initializers |
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[51b7345] | 258 | %type<in> initializer initializer_list initializer_opt |
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| 259 | |
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[c11e31c] | 260 | // designators |
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[51b7345] | 261 | %type<en> designator designator_list designation |
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| 262 | |
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| 263 | |
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[b87a5ed] | 264 | // Handle single shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string |
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| 265 | // is ambiguous: |
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| 266 | // .---------. matches IF '(' comma_expression ')' statement |
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[c11e31c] | 267 | // if ( C ) S1 else S2 |
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[b87a5ed] | 268 | // `-----------------' matches IF '(' comma_expression ')' statement ELSE statement */ |
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[51b7345] | 269 | |
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[c11e31c] | 270 | %nonassoc THEN // rule precedence for IF '(' comma_expression ')' statement |
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| 271 | %nonassoc ELSE // token precedence for start of else clause in IF statement |
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[51b7345] | 272 | |
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[b87a5ed] | 273 | %start translation_unit // parse-tree root |
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[51b7345] | 274 | |
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| 275 | %% |
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[c11e31c] | 276 | //************************* Namespace Management ******************************** |
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| 277 | |
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[de62360d] | 278 | // The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal symbols |
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| 279 | // "identifier" and "TYPEDEFname" that are lexically identical. While it is possible to write a purely context-free |
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| 280 | // grammar, such a grammar would obscure the relationship between syntactic and semantic constructs. Hence, this |
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| 281 | // grammar uses the ANSI style. |
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[c11e31c] | 282 | // |
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[de62360d] | 283 | // Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, those |
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[9059213] | 284 | // introduced through "forall" qualifiers), and by introducing "type generators" -- parameterized types. This latter |
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[de62360d] | 285 | // type name creates a third class of identifiers that must be distinguished by the scanner. |
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[c11e31c] | 286 | // |
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[de62360d] | 287 | // Since the scanner cannot distinguish among the different classes of identifiers without some context information, it |
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[9059213] | 288 | // accesses a data structure (TypedefTable) to allow classification of an identifier that it has just read. Semantic |
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| 289 | // actions during the parser update this data structure when the class of identifiers change. |
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[c11e31c] | 290 | // |
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[de62360d] | 291 | // Because the Cforall language is block-scoped, there is the possibility that an identifier can change its class in a |
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| 292 | // 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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| 293 | // particular declaration, each declaration is itself a scope. This requires distinguishing between type names that are |
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| 294 | // 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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[9059213] | 295 | // "typedef" or "otype" declarations). |
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[c11e31c] | 296 | // |
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[de62360d] | 297 | // 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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| 298 | // scopes. Every push must have a matching pop, although it is regrettable the matching pairs do not always occur |
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| 299 | // within the same rule. These non-terminals may appear in more contexts than strictly necessary from a semantic point |
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| 300 | // of view. Unfortunately, these extra rules are necessary to prevent parsing conflicts -- the parser may not have |
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| 301 | // enough context and look-ahead information to decide whether a new scope is necessary, so the effect of these extra |
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| 302 | // 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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| 303 | // "push" and "pop" nonterminals to resolve conflicts of this sort. |
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[51b7345] | 304 | |
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| 305 | push: |
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[ab57786] | 306 | { typedefTable.enterScope(); } |
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[4d51835] | 307 | ; |
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[51b7345] | 308 | |
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| 309 | pop: |
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[ab57786] | 310 | { typedefTable.leaveScope(); } |
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[4d51835] | 311 | ; |
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[51b7345] | 312 | |
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[c11e31c] | 313 | //************************* CONSTANTS ******************************** |
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[51b7345] | 314 | |
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| 315 | constant: |
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[de62360d] | 316 | // ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant". |
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[ab57786] | 317 | INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); } |
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[1b29996] | 318 | | REALDECIMALconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
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| 319 | | REALFRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
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[ab57786] | 320 | | FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
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| 321 | | CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); } |
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[4d51835] | 322 | ; |
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[51b7345] | 323 | |
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| 324 | identifier: |
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[4d51835] | 325 | IDENTIFIER |
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| 326 | | ATTR_IDENTIFIER // CFA |
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| 327 | | zero_one // CFA |
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| 328 | ; |
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[51b7345] | 329 | |
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| 330 | no_01_identifier: |
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[4d51835] | 331 | IDENTIFIER |
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| 332 | | ATTR_IDENTIFIER // CFA |
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| 333 | ; |
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[51b7345] | 334 | |
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| 335 | no_attr_identifier: |
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[4d51835] | 336 | IDENTIFIER |
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[bd85400] | 337 | | zero_one // CFA |
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[4d51835] | 338 | ; |
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[51b7345] | 339 | |
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[b87a5ed] | 340 | zero_one: // CFA |
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[4d51835] | 341 | ZERO |
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| 342 | | ONE |
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| 343 | ; |
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[51b7345] | 344 | |
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[ab57786] | 345 | string_literal: |
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| 346 | string_literal_list { $$ = build_constantStr( *$1 ); } |
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| 347 | ; |
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| 348 | |
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[b87a5ed] | 349 | string_literal_list: // juxtaposed strings are concatenated |
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[ab57786] | 350 | STRINGliteral { $$ = $1; } // conversion from tok to str |
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[7bf7fb9] | 351 | | string_literal_list STRINGliteral |
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| 352 | { |
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[ab57786] | 353 | appendStr( $1, $2 ); // append 2nd juxtaposed string to 1st |
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[7bf7fb9] | 354 | delete $2; // allocated by lexer |
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[ab57786] | 355 | $$ = $1; // conversion from tok to str |
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[7bf7fb9] | 356 | } |
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[4d51835] | 357 | ; |
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[51b7345] | 358 | |
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[c11e31c] | 359 | //************************* EXPRESSIONS ******************************** |
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[51b7345] | 360 | |
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| 361 | primary_expression: |
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[4d51835] | 362 | IDENTIFIER // typedef name cannot be used as a variable name |
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[d1625f8] | 363 | { $$ = new ExpressionNode( build_varref( $1 ) ); } |
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[4d51835] | 364 | | zero_one |
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[4cb935e] | 365 | { $$ = new ExpressionNode( build_constantZeroOne( *$1 ) ); } |
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[1b29996] | 366 | | tuple |
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[4d51835] | 367 | | '(' comma_expression ')' |
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| 368 | { $$ = $2; } |
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| 369 | | '(' compound_statement ')' // GCC, lambda expression |
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[1b77274] | 370 | { $$ = new ExpressionNode( build_valexpr( $2 ) ); } |
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[4d51835] | 371 | ; |
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[51b7345] | 372 | |
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| 373 | postfix_expression: |
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[4d51835] | 374 | primary_expression |
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| 375 | | postfix_expression '[' push assignment_expression pop ']' |
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[c6b1105] | 376 | // CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a |
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[de62360d] | 377 | // matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be |
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| 378 | // little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is |
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| 379 | // equivalent to the old x[i,j]. |
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[d1625f8] | 380 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $4 ) ); } |
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[4d51835] | 381 | | postfix_expression '(' argument_expression_list ')' |
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[d1625f8] | 382 | { $$ = new ExpressionNode( build_func( $1, $3 ) ); } |
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[4d51835] | 383 | | postfix_expression '.' no_attr_identifier |
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[d1625f8] | 384 | { $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); } |
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[4d51835] | 385 | | postfix_expression '.' '[' push field_list pop ']' // CFA, tuple field selector |
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[3b58d91] | 386 | { $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $5 ) ) ); } |
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[1b29996] | 387 | | postfix_expression REALFRACTIONconstant // CFA, tuple index |
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[8780e30] | 388 | { $$ = new ExpressionNode( build_fieldSel( $1, build_field_name_REALFRACTIONconstant( *$2 ) ) ); } |
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[4d51835] | 389 | | postfix_expression ARROW no_attr_identifier |
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[d1625f8] | 390 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_varref( $3 ) ) ); } |
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[4d51835] | 391 | | postfix_expression ARROW '[' push field_list pop ']' // CFA, tuple field selector |
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[3b58d91] | 392 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $5 ) ) ); } |
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[4d51835] | 393 | | postfix_expression ICR |
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[d1625f8] | 394 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); } |
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[4d51835] | 395 | | postfix_expression DECR |
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[d1625f8] | 396 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); } |
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[4d51835] | 397 | | '(' type_name_no_function ')' '{' initializer_list comma_opt '}' // C99 |
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[d1625f8] | 398 | { $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); } |
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[097e2b0] | 399 | | postfix_expression '{' argument_expression_list '}' // CFA |
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| 400 | { |
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[9706554] | 401 | Token fn; |
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[9c23f31] | 402 | fn.str = new std::string( "?{}" ); // location undefined - use location of '{'? |
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[b6fe7e6] | 403 | $$ = new ExpressionNode( new ConstructorExpr( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) ) ); |
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[097e2b0] | 404 | } |
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[4d51835] | 405 | ; |
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[51b7345] | 406 | |
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| 407 | argument_expression_list: |
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[4d51835] | 408 | argument_expression |
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| 409 | | argument_expression_list ',' argument_expression |
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[1d4580a] | 410 | { $$ = (ExpressionNode *)( $1->set_last( $3 )); } |
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[4d51835] | 411 | ; |
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[51b7345] | 412 | |
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| 413 | argument_expression: |
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[4d51835] | 414 | // empty |
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[58dd019] | 415 | { $$ = nullptr; } // use default argument |
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[4d51835] | 416 | | assignment_expression |
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| 417 | ; |
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[b87a5ed] | 418 | |
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| 419 | field_list: // CFA, tuple field selector |
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[4d51835] | 420 | field |
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[1d4580a] | 421 | | field_list ',' field { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
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[4d51835] | 422 | ; |
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[b87a5ed] | 423 | |
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| 424 | field: // CFA, tuple field selector |
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[faddbd8] | 425 | field_name |
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[1b29996] | 426 | | REALDECIMALconstant field |
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[8780e30] | 427 | { $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_REALDECIMALconstant( *$1 ) ), maybeMoveBuild<Expression>( $2 ) ) ); } |
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[1b29996] | 428 | | REALDECIMALconstant '[' push field_list pop ']' |
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[8780e30] | 429 | { $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_REALDECIMALconstant( *$1 ) ), build_tuple( $4 ) ) ); } |
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[faddbd8] | 430 | | field_name '.' field |
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[bf32bb8] | 431 | { $$ = new ExpressionNode( build_fieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); } |
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[faddbd8] | 432 | | field_name '.' '[' push field_list pop ']' |
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[bf32bb8] | 433 | { $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $5 ) ) ); } |
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[faddbd8] | 434 | | field_name ARROW field |
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[bf32bb8] | 435 | { $$ = new ExpressionNode( build_pfieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); } |
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[faddbd8] | 436 | | field_name ARROW '[' push field_list pop ']' |
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[bf32bb8] | 437 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $5 ) ) ); } |
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[4d51835] | 438 | ; |
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[51b7345] | 439 | |
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[faddbd8] | 440 | field_name: |
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[1b29996] | 441 | INTEGERconstant fraction_constants |
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[8780e30] | 442 | { $$ = new ExpressionNode( build_field_name_fraction_constants( build_constantInteger( *$1 ), $2 ) ); } |
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[1b29996] | 443 | | FLOATINGconstant fraction_constants |
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[8780e30] | 444 | { $$ = new ExpressionNode( build_field_name_fraction_constants( build_field_name_FLOATINGconstant( *$1 ), $2 ) ); } |
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[1b29996] | 445 | | no_attr_identifier fraction_constants |
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[4cb935e] | 446 | { |
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| 447 | if( (*$1) == "0" || (*$1) == "1" ) { |
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| 448 | $$ = new ExpressionNode( build_field_name_fraction_constants( build_constantZeroOne( *$1 ), $2 ) ); |
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| 449 | } else { |
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| 450 | $$ = new ExpressionNode( build_field_name_fraction_constants( build_varref( $1 ), $2 ) ); |
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| 451 | } |
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| 452 | } |
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[1b29996] | 453 | ; |
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| 454 | |
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| 455 | fraction_constants: |
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| 456 | // empty |
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[8780e30] | 457 | { $$ = nullptr; } |
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[1b29996] | 458 | | fraction_constants REALFRACTIONconstant |
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[8780e30] | 459 | { |
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| 460 | Expression * constant = build_field_name_REALFRACTIONconstant( *$2 ); |
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| 461 | $$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( $1, constant ) ) : new ExpressionNode( constant ); |
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| 462 | } |
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[faddbd8] | 463 | ; |
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| 464 | |
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[51b7345] | 465 | unary_expression: |
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[4d51835] | 466 | postfix_expression |
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[c6b1105] | 467 | // first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires |
---|
| 468 | // semantics checks, e.g., ++3, 3--, *3, &&3 |
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[51b1202] | 469 | | constant |
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| 470 | { $$ = $1; } |
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[ab57786] | 471 | | string_literal |
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[d1625f8] | 472 | { $$ = new ExpressionNode( $1 ); } |
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[4d51835] | 473 | | EXTENSION cast_expression // GCC |
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[e04ef3a] | 474 | { $$ = $2->set_extension( true ); } |
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[c6b1105] | 475 | // '*' ('&') is separated from unary_operator because of shift/reduce conflict in: |
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| 476 | // { * X; } // dereference X |
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| 477 | // { * int X; } // CFA declaration of pointer to int |
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[51e076e] | 478 | | ptrref_operator cast_expression // CFA |
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[9706554] | 479 | { |
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| 480 | switch ( $1 ) { |
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[d9e2280] | 481 | case OperKinds::AddressOf: |
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[d1625f8] | 482 | $$ = new ExpressionNode( build_addressOf( $2 ) ); |
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[9706554] | 483 | break; |
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[d9e2280] | 484 | case OperKinds::PointTo: |
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[d1625f8] | 485 | $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); |
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[9706554] | 486 | break; |
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| 487 | default: |
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| 488 | assert( false ); |
---|
| 489 | } |
---|
| 490 | } |
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[4d51835] | 491 | | unary_operator cast_expression |
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[d1625f8] | 492 | { $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); } |
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[dd51906] | 493 | | ICR unary_expression |
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[d1625f8] | 494 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); } |
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[dd51906] | 495 | | DECR unary_expression |
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[d1625f8] | 496 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); } |
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[4d51835] | 497 | | SIZEOF unary_expression |
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[d1625f8] | 498 | { $$ = new ExpressionNode( build_sizeOfexpr( $2 ) ); } |
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[4d51835] | 499 | | SIZEOF '(' type_name_no_function ')' |
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[d1625f8] | 500 | { $$ = new ExpressionNode( build_sizeOftype( $3 ) ); } |
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| 501 | | ALIGNOF unary_expression // GCC, variable alignment |
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| 502 | { $$ = new ExpressionNode( build_alignOfexpr( $2 ) ); } |
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| 503 | | ALIGNOF '(' type_name_no_function ')' // GCC, type alignment |
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| 504 | { $$ = new ExpressionNode( build_alignOftype( $3 ) ); } |
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[5721a6d] | 505 | | OFFSETOF '(' type_name_no_function ',' no_attr_identifier ')' |
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[d1625f8] | 506 | { $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); } |
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[4d51835] | 507 | | ATTR_IDENTIFIER |
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[d1625f8] | 508 | { $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), nullptr ) ); } |
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[4d51835] | 509 | | ATTR_IDENTIFIER '(' argument_expression ')' |
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[d1625f8] | 510 | { $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), $3 ) ); } |
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| 511 | | ATTR_IDENTIFIER '(' type_name ')' |
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| 512 | { $$ = new ExpressionNode( build_attrtype( build_varref( $1 ), $3 ) ); } |
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[c6b1105] | 513 | // | ANDAND IDENTIFIER // GCC, address of label |
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[d1625f8] | 514 | // { $$ = new ExpressionNode( new OperatorNode( OperKinds::LabelAddress ), new ExpressionNode( build_varref( $2, true ) ); } |
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[4d51835] | 515 | ; |
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[51b7345] | 516 | |
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[dd51906] | 517 | ptrref_operator: |
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[d9e2280] | 518 | '*' { $$ = OperKinds::PointTo; } |
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| 519 | | '&' { $$ = OperKinds::AddressOf; } |
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[c6b1105] | 520 | // GCC, address of label must be handled by semantic check for ref,ref,label |
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[d9e2280] | 521 | // | ANDAND { $$ = OperKinds::And; } |
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[dd51906] | 522 | ; |
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| 523 | |
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[51b7345] | 524 | unary_operator: |
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[d9e2280] | 525 | '+' { $$ = OperKinds::UnPlus; } |
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| 526 | | '-' { $$ = OperKinds::UnMinus; } |
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| 527 | | '!' { $$ = OperKinds::Neg; } |
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| 528 | | '~' { $$ = OperKinds::BitNeg; } |
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[4d51835] | 529 | ; |
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[51b7345] | 530 | |
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| 531 | cast_expression: |
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[4d51835] | 532 | unary_expression |
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| 533 | | '(' type_name_no_function ')' cast_expression |
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[d1625f8] | 534 | { $$ = new ExpressionNode( build_cast( $2, $4 ) ); } |
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[1b29996] | 535 | // | '(' type_name_no_function ')' tuple |
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| 536 | // { $$ = new ExpressionNode( build_cast( $2, $4 ) ); } |
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[4d51835] | 537 | ; |
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[51b7345] | 538 | |
---|
| 539 | multiplicative_expression: |
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[4d51835] | 540 | cast_expression |
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| 541 | | multiplicative_expression '*' cast_expression |
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[d1625f8] | 542 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); } |
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[4d51835] | 543 | | multiplicative_expression '/' cast_expression |
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[d1625f8] | 544 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); } |
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[4d51835] | 545 | | multiplicative_expression '%' cast_expression |
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[d1625f8] | 546 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); } |
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[4d51835] | 547 | ; |
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[51b7345] | 548 | |
---|
| 549 | additive_expression: |
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[4d51835] | 550 | multiplicative_expression |
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| 551 | | additive_expression '+' multiplicative_expression |
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[d1625f8] | 552 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); } |
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[4d51835] | 553 | | additive_expression '-' multiplicative_expression |
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[d1625f8] | 554 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); } |
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[4d51835] | 555 | ; |
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[51b7345] | 556 | |
---|
| 557 | shift_expression: |
---|
[4d51835] | 558 | additive_expression |
---|
| 559 | | shift_expression LS additive_expression |
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[d1625f8] | 560 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); } |
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[4d51835] | 561 | | shift_expression RS additive_expression |
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[d1625f8] | 562 | { $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); } |
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[4d51835] | 563 | ; |
---|
[51b7345] | 564 | |
---|
| 565 | relational_expression: |
---|
[4d51835] | 566 | shift_expression |
---|
| 567 | | relational_expression '<' shift_expression |
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[d1625f8] | 568 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); } |
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[4d51835] | 569 | | relational_expression '>' shift_expression |
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[d1625f8] | 570 | { $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); } |
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[4d51835] | 571 | | relational_expression LE shift_expression |
---|
[d1625f8] | 572 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); } |
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[4d51835] | 573 | | relational_expression GE shift_expression |
---|
[d1625f8] | 574 | { $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); } |
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[4d51835] | 575 | ; |
---|
[51b7345] | 576 | |
---|
| 577 | equality_expression: |
---|
[4d51835] | 578 | relational_expression |
---|
| 579 | | equality_expression EQ relational_expression |
---|
[d1625f8] | 580 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); } |
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[4d51835] | 581 | | equality_expression NE relational_expression |
---|
[d1625f8] | 582 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); } |
---|
[4d51835] | 583 | ; |
---|
[51b7345] | 584 | |
---|
| 585 | AND_expression: |
---|
[4d51835] | 586 | equality_expression |
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| 587 | | AND_expression '&' equality_expression |
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[d1625f8] | 588 | { $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); } |
---|
[4d51835] | 589 | ; |
---|
[51b7345] | 590 | |
---|
| 591 | exclusive_OR_expression: |
---|
[4d51835] | 592 | AND_expression |
---|
| 593 | | exclusive_OR_expression '^' AND_expression |
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[d1625f8] | 594 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); } |
---|
[4d51835] | 595 | ; |
---|
[51b7345] | 596 | |
---|
| 597 | inclusive_OR_expression: |
---|
[4d51835] | 598 | exclusive_OR_expression |
---|
| 599 | | inclusive_OR_expression '|' exclusive_OR_expression |
---|
[d1625f8] | 600 | { $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); } |
---|
[4d51835] | 601 | ; |
---|
[51b7345] | 602 | |
---|
| 603 | logical_AND_expression: |
---|
[4d51835] | 604 | inclusive_OR_expression |
---|
| 605 | | logical_AND_expression ANDAND inclusive_OR_expression |
---|
[d1625f8] | 606 | { $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); } |
---|
[4d51835] | 607 | ; |
---|
[51b7345] | 608 | |
---|
| 609 | logical_OR_expression: |
---|
[4d51835] | 610 | logical_AND_expression |
---|
| 611 | | logical_OR_expression OROR logical_AND_expression |
---|
[d1625f8] | 612 | { $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); } |
---|
[4d51835] | 613 | ; |
---|
[51b7345] | 614 | |
---|
| 615 | conditional_expression: |
---|
[4d51835] | 616 | logical_OR_expression |
---|
| 617 | | logical_OR_expression '?' comma_expression ':' conditional_expression |
---|
[d1625f8] | 618 | { $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); } |
---|
[d9e2280] | 619 | // FIX ME: this hack computes $1 twice |
---|
[4d51835] | 620 | | logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand |
---|
[d1625f8] | 621 | { $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); } |
---|
[1b29996] | 622 | // | logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression |
---|
| 623 | // { $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); } |
---|
[4d51835] | 624 | ; |
---|
[51b7345] | 625 | |
---|
| 626 | constant_expression: |
---|
[4d51835] | 627 | conditional_expression |
---|
| 628 | ; |
---|
[51b7345] | 629 | |
---|
| 630 | assignment_expression: |
---|
[4d51835] | 631 | // CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples |
---|
| 632 | conditional_expression |
---|
| 633 | | unary_expression assignment_operator assignment_expression |
---|
[d1625f8] | 634 | { $$ = new ExpressionNode( build_binary_ptr( $2, $1, $3 ) ); } |
---|
[1b29996] | 635 | // | tuple assignment_opt // CFA, tuple expression |
---|
| 636 | // { $$ = ( $2 == 0 ) ? $1 : new ExpressionNode( build_binary_ptr( OperKinds::Assign, $1, $2 ) ); } |
---|
[4d51835] | 637 | ; |
---|
[51b7345] | 638 | |
---|
| 639 | assignment_expression_opt: |
---|
[4d51835] | 640 | // empty |
---|
[d1625f8] | 641 | { $$ = nullptr; } |
---|
[4d51835] | 642 | | assignment_expression |
---|
| 643 | ; |
---|
[b87a5ed] | 644 | |
---|
[9706554] | 645 | assignment_operator: |
---|
[d9e2280] | 646 | '=' { $$ = OperKinds::Assign; } |
---|
[a839867] | 647 | | ATassign { $$ = OperKinds::AtAssn; } |
---|
[d9e2280] | 648 | | MULTassign { $$ = OperKinds::MulAssn; } |
---|
| 649 | | DIVassign { $$ = OperKinds::DivAssn; } |
---|
| 650 | | MODassign { $$ = OperKinds::ModAssn; } |
---|
| 651 | | PLUSassign { $$ = OperKinds::PlusAssn; } |
---|
| 652 | | MINUSassign { $$ = OperKinds::MinusAssn; } |
---|
| 653 | | LSassign { $$ = OperKinds::LSAssn; } |
---|
| 654 | | RSassign { $$ = OperKinds::RSAssn; } |
---|
| 655 | | ANDassign { $$ = OperKinds::AndAssn; } |
---|
| 656 | | ERassign { $$ = OperKinds::ERAssn; } |
---|
| 657 | | ORassign { $$ = OperKinds::OrAssn; } |
---|
[413ad05] | 658 | ; |
---|
[9706554] | 659 | |
---|
[b87a5ed] | 660 | tuple: // CFA, tuple |
---|
[de62360d] | 661 | // CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with |
---|
| 662 | // comma_expression in new_identifier_parameter_array and new_abstract_array |
---|
[1b29996] | 663 | // '[' ']' |
---|
| 664 | // { $$ = new ExpressionNode( build_tuple() ); } |
---|
| 665 | // '[' push assignment_expression pop ']' |
---|
| 666 | // { $$ = new ExpressionNode( build_tuple( $3 ) ); } |
---|
| 667 | '[' push ',' tuple_expression_list pop ']' |
---|
[1d4580a] | 668 | { $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $4 ) ) ); } |
---|
[4d51835] | 669 | | '[' push assignment_expression ',' tuple_expression_list pop ']' |
---|
[1d4580a] | 670 | { $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $5 ) ) ); } |
---|
[4d51835] | 671 | ; |
---|
[51b7345] | 672 | |
---|
| 673 | tuple_expression_list: |
---|
[4d51835] | 674 | assignment_expression_opt |
---|
| 675 | | tuple_expression_list ',' assignment_expression_opt |
---|
[1d4580a] | 676 | { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
---|
[4d51835] | 677 | ; |
---|
[51b7345] | 678 | |
---|
| 679 | comma_expression: |
---|
[4d51835] | 680 | assignment_expression |
---|
[9706554] | 681 | | comma_expression ',' assignment_expression |
---|
[d1625f8] | 682 | { $$ = new ExpressionNode( build_comma( $1, $3 ) ); } |
---|
[4d51835] | 683 | ; |
---|
[51b7345] | 684 | |
---|
| 685 | comma_expression_opt: |
---|
[4d51835] | 686 | // empty |
---|
[58dd019] | 687 | { $$ = nullptr; } |
---|
[4d51835] | 688 | | comma_expression |
---|
| 689 | ; |
---|
[51b7345] | 690 | |
---|
[c11e31c] | 691 | //*************************** STATEMENTS ******************************* |
---|
[51b7345] | 692 | |
---|
| 693 | statement: |
---|
[4d51835] | 694 | labeled_statement |
---|
| 695 | | compound_statement |
---|
| 696 | | expression_statement { $$ = $1; } |
---|
| 697 | | selection_statement |
---|
| 698 | | iteration_statement |
---|
| 699 | | jump_statement |
---|
| 700 | | exception_statement |
---|
| 701 | | asm_statement |
---|
[097e2b0] | 702 | | '^' postfix_expression '{' argument_expression_list '}' ';' // CFA |
---|
| 703 | { |
---|
[d9e2280] | 704 | Token fn; |
---|
[2298f728] | 705 | fn.str = new string( "^?{}" ); // location undefined |
---|
[e82aa9df] | 706 | $$ = new StatementNode( build_expr( new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) ) ) ); |
---|
[097e2b0] | 707 | } |
---|
[4d51835] | 708 | ; |
---|
[51b7345] | 709 | |
---|
| 710 | labeled_statement: |
---|
[c6b1105] | 711 | // labels cannot be identifiers 0 or 1 |
---|
| 712 | IDENTIFIER ':' attribute_list_opt statement |
---|
[1db21619] | 713 | { |
---|
| 714 | $$ = $4->add_label( $1 ); |
---|
| 715 | } |
---|
[4d51835] | 716 | ; |
---|
[51b7345] | 717 | |
---|
| 718 | compound_statement: |
---|
[4d51835] | 719 | '{' '}' |
---|
[e82aa9df] | 720 | { $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); } |
---|
[4d51835] | 721 | | '{' |
---|
[de62360d] | 722 | // Two scopes are necessary because the block itself has a scope, but every declaration within the block also |
---|
[3a2128f] | 723 | // requires its own scope. |
---|
[4d51835] | 724 | push push |
---|
[51b1202] | 725 | local_label_declaration_opt // GCC, local labels |
---|
[4d51835] | 726 | block_item_list pop '}' // C99, intermix declarations and statements |
---|
[e82aa9df] | 727 | { $$ = new StatementNode( build_compound( $5 ) ); } |
---|
[4d51835] | 728 | ; |
---|
[b87a5ed] | 729 | |
---|
| 730 | block_item_list: // C99 |
---|
[4d51835] | 731 | block_item |
---|
| 732 | | block_item_list push block_item |
---|
[1d4580a] | 733 | { if ( $1 != 0 ) { $1->set_last( $3 ); $$ = $1; } } |
---|
[4d51835] | 734 | ; |
---|
[51b7345] | 735 | |
---|
| 736 | block_item: |
---|
[4d51835] | 737 | declaration // CFA, new & old style declarations |
---|
[e82aa9df] | 738 | { $$ = new StatementNode( $1 ); } |
---|
[4d51835] | 739 | | EXTENSION declaration // GCC |
---|
[8e9cbb2] | 740 | { // mark all fields in list |
---|
[926af74] | 741 | for ( DeclarationNode *iter = $2; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) |
---|
[8e9cbb2] | 742 | iter->set_extension( true ); |
---|
[e82aa9df] | 743 | $$ = new StatementNode( $2 ); |
---|
[8e9cbb2] | 744 | } |
---|
[4d51835] | 745 | | function_definition |
---|
[e82aa9df] | 746 | { $$ = new StatementNode( $1 ); } |
---|
[4d51835] | 747 | | statement pop |
---|
| 748 | ; |
---|
[51b7345] | 749 | |
---|
| 750 | statement_list: |
---|
[4d51835] | 751 | statement |
---|
| 752 | | statement_list statement |
---|
[1d4580a] | 753 | { if ( $1 != 0 ) { $1->set_last( $2 ); $$ = $1; } } |
---|
[4d51835] | 754 | ; |
---|
[51b7345] | 755 | |
---|
| 756 | expression_statement: |
---|
[4d51835] | 757 | comma_expression_opt ';' |
---|
[e82aa9df] | 758 | { $$ = new StatementNode( build_expr( $1 ) ); } |
---|
[4d51835] | 759 | ; |
---|
[51b7345] | 760 | |
---|
| 761 | selection_statement: |
---|
[4d51835] | 762 | IF '(' comma_expression ')' statement %prec THEN |
---|
| 763 | // explicitly deal with the shift/reduce conflict on if/else |
---|
[e82aa9df] | 764 | { $$ = new StatementNode( build_if( $3, $5, nullptr ) ); } |
---|
[4d51835] | 765 | | IF '(' comma_expression ')' statement ELSE statement |
---|
[e82aa9df] | 766 | { $$ = new StatementNode( build_if( $3, $5, $7 ) ); } |
---|
[4d51835] | 767 | | SWITCH '(' comma_expression ')' case_clause // CFA |
---|
[e82aa9df] | 768 | { $$ = new StatementNode( build_switch( $3, $5 ) ); } |
---|
[4d51835] | 769 | | SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA |
---|
[4e06c1e] | 770 | { |
---|
[e82aa9df] | 771 | StatementNode *sw = new StatementNode( build_switch( $3, $8 ) ); |
---|
[4e06c1e] | 772 | // The semantics of the declaration list is changed to include associated initialization, which is performed |
---|
| 773 | // *before* the transfer to the appropriate case clause by hoisting the declarations into a compound |
---|
| 774 | // statement around the switch. Statements after the initial declaration list can never be executed, and |
---|
[8688ce1] | 775 | // therefore, are removed from the grammar even though C allows it. The change also applies to choose |
---|
| 776 | // statement. |
---|
[e82aa9df] | 777 | $$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw; |
---|
[4e06c1e] | 778 | } |
---|
[4d51835] | 779 | | CHOOSE '(' comma_expression ')' case_clause // CFA |
---|
[e82aa9df] | 780 | { $$ = new StatementNode( build_switch( $3, $5 ) ); } |
---|
[4d51835] | 781 | | CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA |
---|
[4e06c1e] | 782 | { |
---|
[e82aa9df] | 783 | StatementNode *sw = new StatementNode( build_switch( $3, $8 ) ); |
---|
| 784 | $$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw; |
---|
[4e06c1e] | 785 | } |
---|
[4d51835] | 786 | ; |
---|
[b87a5ed] | 787 | |
---|
[de62360d] | 788 | // CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case |
---|
| 789 | // clause allows a list of values and subranges. |
---|
[b87a5ed] | 790 | |
---|
| 791 | case_value: // CFA |
---|
[4d51835] | 792 | constant_expression { $$ = $1; } |
---|
| 793 | | constant_expression ELLIPSIS constant_expression // GCC, subrange |
---|
[d1625f8] | 794 | { $$ = new ExpressionNode( build_range( $1, $3 ) ); } |
---|
[4d51835] | 795 | | subrange // CFA, subrange |
---|
| 796 | ; |
---|
[b87a5ed] | 797 | |
---|
| 798 | case_value_list: // CFA |
---|
[e82aa9df] | 799 | case_value { $$ = new StatementNode( build_case( $1 ) ); } |
---|
[064e3ff] | 800 | // convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5" |
---|
[e82aa9df] | 801 | | case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); } |
---|
[4d51835] | 802 | ; |
---|
[b87a5ed] | 803 | |
---|
| 804 | case_label: // CFA |
---|
[8688ce1] | 805 | CASE case_value_list ':' { $$ = $2; } |
---|
[e82aa9df] | 806 | | DEFAULT ':' { $$ = new StatementNode( build_default() ); } |
---|
[4d51835] | 807 | // A semantic check is required to ensure only one default clause per switch/choose statement. |
---|
| 808 | ; |
---|
[b87a5ed] | 809 | |
---|
| 810 | case_label_list: // CFA |
---|
[4d51835] | 811 | case_label |
---|
[1d4580a] | 812 | | case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); } |
---|
[4d51835] | 813 | ; |
---|
[b87a5ed] | 814 | |
---|
| 815 | case_clause: // CFA |
---|
[e82aa9df] | 816 | case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); } |
---|
[4d51835] | 817 | ; |
---|
[b87a5ed] | 818 | |
---|
| 819 | switch_clause_list_opt: // CFA |
---|
[4d51835] | 820 | // empty |
---|
[58dd019] | 821 | { $$ = nullptr; } |
---|
[4d51835] | 822 | | switch_clause_list |
---|
| 823 | ; |
---|
[b87a5ed] | 824 | |
---|
| 825 | switch_clause_list: // CFA |
---|
[4d51835] | 826 | case_label_list statement_list |
---|
[e82aa9df] | 827 | { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); } |
---|
[4d51835] | 828 | | switch_clause_list case_label_list statement_list |
---|
[e82aa9df] | 829 | { $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); } |
---|
[4d51835] | 830 | ; |
---|
[b87a5ed] | 831 | |
---|
| 832 | choose_clause_list_opt: // CFA |
---|
[4d51835] | 833 | // empty |
---|
[58dd019] | 834 | { $$ = nullptr; } |
---|
[4d51835] | 835 | | choose_clause_list |
---|
| 836 | ; |
---|
[b87a5ed] | 837 | |
---|
| 838 | choose_clause_list: // CFA |
---|
[4d51835] | 839 | case_label_list fall_through |
---|
[de62360d] | 840 | { $$ = $1->append_last_case( $2 ); } |
---|
[4d51835] | 841 | | case_label_list statement_list fall_through_opt |
---|
[e82aa9df] | 842 | { $$ = $1->append_last_case( new StatementNode( build_compound( (StatementNode *)$2->set_last( $3 ) ) ) ); } |
---|
[4d51835] | 843 | | choose_clause_list case_label_list fall_through |
---|
[1d4580a] | 844 | { $$ = (StatementNode *)( $1->set_last( $2->append_last_case( $3 ))); } |
---|
[4d51835] | 845 | | choose_clause_list case_label_list statement_list fall_through_opt |
---|
[e82aa9df] | 846 | { $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( (StatementNode *)$3->set_last( $4 ) ) ) ) ) ); } |
---|
[4d51835] | 847 | ; |
---|
[b87a5ed] | 848 | |
---|
| 849 | fall_through_opt: // CFA |
---|
[4d51835] | 850 | // empty |
---|
[ab57786] | 851 | { $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } // insert implicit break |
---|
[4d51835] | 852 | | fall_through |
---|
| 853 | ; |
---|
[b87a5ed] | 854 | |
---|
| 855 | fall_through: // CFA |
---|
[4e06c1e] | 856 | FALLTHRU |
---|
[58dd019] | 857 | { $$ = nullptr; } |
---|
[4e06c1e] | 858 | | FALLTHRU ';' |
---|
[58dd019] | 859 | { $$ = nullptr; } |
---|
[4d51835] | 860 | ; |
---|
[51b7345] | 861 | |
---|
| 862 | iteration_statement: |
---|
[4d51835] | 863 | WHILE '(' comma_expression ')' statement |
---|
[e82aa9df] | 864 | { $$ = new StatementNode( build_while( $3, $5 ) ); } |
---|
[4d51835] | 865 | | DO statement WHILE '(' comma_expression ')' ';' |
---|
[5b639ee] | 866 | { $$ = new StatementNode( build_while( $5, $2, true ) ); } |
---|
[4d51835] | 867 | | FOR '(' push for_control_expression ')' statement |
---|
[e82aa9df] | 868 | { $$ = new StatementNode( build_for( $4, $6 ) ); } |
---|
[4d51835] | 869 | ; |
---|
[51b7345] | 870 | |
---|
| 871 | for_control_expression: |
---|
[4d51835] | 872 | comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt |
---|
[2f22cc4] | 873 | { $$ = new ForCtl( $1, $4, $6 ); } |
---|
[4d51835] | 874 | | declaration comma_expression_opt ';' comma_expression_opt // C99 |
---|
[2f22cc4] | 875 | { $$ = new ForCtl( $1, $2, $4 ); } |
---|
[d1625f8] | 876 | ; |
---|
[51b7345] | 877 | |
---|
| 878 | jump_statement: |
---|
[c6b1105] | 879 | GOTO IDENTIFIER ';' |
---|
[ab57786] | 880 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); } |
---|
[4d51835] | 881 | | GOTO '*' comma_expression ';' // GCC, computed goto |
---|
[4e06c1e] | 882 | // The syntax for the GCC computed goto violates normal expression precedence, e.g., goto *i+3; => goto *(i+3); |
---|
[de62360d] | 883 | // whereas normal operator precedence yields goto (*i)+3; |
---|
[e82aa9df] | 884 | { $$ = new StatementNode( build_computedgoto( $3 ) ); } |
---|
[4d51835] | 885 | | CONTINUE ';' |
---|
[de62360d] | 886 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement. |
---|
[ab57786] | 887 | { $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); } |
---|
[4e06c1e] | 888 | | CONTINUE IDENTIFIER ';' // CFA, multi-level continue |
---|
[de62360d] | 889 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and |
---|
| 890 | // the target of the transfer appears only at the start of an iteration statement. |
---|
[ab57786] | 891 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); } |
---|
[4d51835] | 892 | | BREAK ';' |
---|
[de62360d] | 893 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement. |
---|
[ab57786] | 894 | { $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } |
---|
[4e06c1e] | 895 | | BREAK IDENTIFIER ';' // CFA, multi-level exit |
---|
[de62360d] | 896 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and |
---|
| 897 | // the target of the transfer appears only at the start of an iteration statement. |
---|
[ab57786] | 898 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); } |
---|
[4d51835] | 899 | | RETURN comma_expression_opt ';' |
---|
[e82aa9df] | 900 | { $$ = new StatementNode( build_return( $2 ) ); } |
---|
[8cc5cb0] | 901 | | THROW assignment_expression_opt ';' // handles rethrow |
---|
[e82aa9df] | 902 | { $$ = new StatementNode( build_throw( $2 ) ); } |
---|
[8cc5cb0] | 903 | | THROWRESUME assignment_expression_opt ';' // handles reresume |
---|
[e82aa9df] | 904 | { $$ = new StatementNode( build_throw( $2 ) ); } |
---|
[8cc5cb0] | 905 | | THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume |
---|
[e82aa9df] | 906 | { $$ = new StatementNode( build_throw( $2 ) ); } |
---|
[4d51835] | 907 | ; |
---|
[51b7345] | 908 | |
---|
| 909 | exception_statement: |
---|
[4d51835] | 910 | TRY compound_statement handler_list |
---|
[e82aa9df] | 911 | { $$ = new StatementNode( build_try( $2, $3, 0 ) ); } |
---|
[4d51835] | 912 | | TRY compound_statement finally_clause |
---|
[e82aa9df] | 913 | { $$ = new StatementNode( build_try( $2, 0, $3 ) ); } |
---|
[4d51835] | 914 | | TRY compound_statement handler_list finally_clause |
---|
[e82aa9df] | 915 | { $$ = new StatementNode( build_try( $2, $3, $4 ) ); } |
---|
[4d51835] | 916 | ; |
---|
[51b7345] | 917 | |
---|
| 918 | handler_list: |
---|
[4d51835] | 919 | handler_clause |
---|
[de62360d] | 920 | // ISO/IEC 9899:1999 Section 15.3(6 ) If present, a "..." handler shall be the last handler for its try block. |
---|
[4d51835] | 921 | | CATCH '(' ELLIPSIS ')' compound_statement |
---|
[e82aa9df] | 922 | { $$ = new StatementNode( build_catch( 0, $5, true ) ); } |
---|
[4d51835] | 923 | | handler_clause CATCH '(' ELLIPSIS ')' compound_statement |
---|
[e82aa9df] | 924 | { $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); } |
---|
[02e5ab6] | 925 | | CATCHRESUME '(' ELLIPSIS ')' compound_statement |
---|
[e82aa9df] | 926 | { $$ = new StatementNode( build_catch( 0, $5, true ) ); } |
---|
[02e5ab6] | 927 | | handler_clause CATCHRESUME '(' ELLIPSIS ')' compound_statement |
---|
[e82aa9df] | 928 | { $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); } |
---|
[4d51835] | 929 | ; |
---|
[51b7345] | 930 | |
---|
| 931 | handler_clause: |
---|
[4d51835] | 932 | CATCH '(' push push exception_declaration pop ')' compound_statement pop |
---|
[e82aa9df] | 933 | { $$ = new StatementNode( build_catch( $5, $8 ) ); } |
---|
[4d51835] | 934 | | handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop |
---|
[1b77274] | 935 | { $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); } |
---|
[02e5ab6] | 936 | | CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop |
---|
[e82aa9df] | 937 | { $$ = new StatementNode( build_catch( $5, $8 ) ); } |
---|
[02e5ab6] | 938 | | handler_clause CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop |
---|
[e82aa9df] | 939 | { $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); } |
---|
[4d51835] | 940 | ; |
---|
[51b7345] | 941 | |
---|
| 942 | finally_clause: |
---|
[4d51835] | 943 | FINALLY compound_statement |
---|
| 944 | { |
---|
[e82aa9df] | 945 | $$ = new StatementNode( build_finally( $2 ) ); |
---|
[4d51835] | 946 | } |
---|
| 947 | ; |
---|
[51b7345] | 948 | |
---|
| 949 | exception_declaration: |
---|
[4d51835] | 950 | // A semantic check is required to ensure type_specifier does not create a new type, e.g.: |
---|
| 951 | // |
---|
| 952 | // catch ( struct { int i; } x ) ... |
---|
| 953 | // |
---|
| 954 | // This new type cannot catch any thrown type because of name equivalence among types. |
---|
| 955 | type_specifier |
---|
| 956 | | type_specifier declarator |
---|
| 957 | { |
---|
| 958 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 959 | $$ = $2->addType( $1 ); |
---|
| 960 | } |
---|
| 961 | | type_specifier variable_abstract_declarator |
---|
| 962 | { $$ = $2->addType( $1 ); } |
---|
| 963 | | new_abstract_declarator_tuple no_attr_identifier // CFA |
---|
| 964 | { |
---|
| 965 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 966 | $$ = $1->addName( $2 ); |
---|
| 967 | } |
---|
| 968 | | new_abstract_declarator_tuple // CFA |
---|
| 969 | ; |
---|
[51b7345] | 970 | |
---|
| 971 | asm_statement: |
---|
[ab57786] | 972 | ASM asm_volatile_opt '(' string_literal ')' ';' |
---|
[e82aa9df] | 973 | { $$ = new StatementNode( build_asmstmt( $2, $4, 0 ) ); } |
---|
[ab57786] | 974 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC |
---|
[e82aa9df] | 975 | { $$ = new StatementNode( build_asmstmt( $2, $4, $6 ) ); } |
---|
[ab57786] | 976 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';' |
---|
[e82aa9df] | 977 | { $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8 ) ); } |
---|
[ab57786] | 978 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';' |
---|
[e82aa9df] | 979 | { $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8, $10 ) ); } |
---|
[ab57786] | 980 | | ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';' |
---|
[e82aa9df] | 981 | { $$ = new StatementNode( build_asmstmt( $2, $5, 0, $8, $10, $12 ) ); } |
---|
[7f5566b] | 982 | ; |
---|
| 983 | |
---|
| 984 | asm_volatile_opt: // GCC |
---|
| 985 | // empty |
---|
| 986 | { $$ = false; } |
---|
| 987 | | VOLATILE |
---|
| 988 | { $$ = true; } |
---|
[4d51835] | 989 | ; |
---|
[b87a5ed] | 990 | |
---|
| 991 | asm_operands_opt: // GCC |
---|
[4d51835] | 992 | // empty |
---|
[58dd019] | 993 | { $$ = nullptr; } // use default argument |
---|
[4d51835] | 994 | | asm_operands_list |
---|
| 995 | ; |
---|
[b87a5ed] | 996 | |
---|
| 997 | asm_operands_list: // GCC |
---|
[4d51835] | 998 | asm_operand |
---|
| 999 | | asm_operands_list ',' asm_operand |
---|
[1d4580a] | 1000 | { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
---|
[4d51835] | 1001 | ; |
---|
[b87a5ed] | 1002 | |
---|
| 1003 | asm_operand: // GCC |
---|
[ab57786] | 1004 | string_literal '(' constant_expression ')' |
---|
[e82aa9df] | 1005 | { $$ = new ExpressionNode( build_asmexpr( 0, $1, $3 ) ); } |
---|
[ab57786] | 1006 | | '[' constant_expression ']' string_literal '(' constant_expression ')' |
---|
[1b77274] | 1007 | { $$ = new ExpressionNode( build_asmexpr( $2, $4, $6 ) ); } |
---|
[7f5566b] | 1008 | ; |
---|
| 1009 | |
---|
[4e06c1e] | 1010 | asm_clobbers_list_opt: // GCC |
---|
[7f5566b] | 1011 | // empty |
---|
[58dd019] | 1012 | { $$ = nullptr; } // use default argument |
---|
[ab57786] | 1013 | | string_literal |
---|
[d1625f8] | 1014 | { $$ = new ExpressionNode( $1 ); } |
---|
[ab57786] | 1015 | | asm_clobbers_list_opt ',' string_literal |
---|
[e82aa9df] | 1016 | { $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); } |
---|
[4d51835] | 1017 | ; |
---|
[b87a5ed] | 1018 | |
---|
[7f5566b] | 1019 | label_list: |
---|
| 1020 | no_attr_identifier |
---|
[ab57786] | 1021 | { |
---|
| 1022 | $$ = new LabelNode(); $$->labels.push_back( *$1 ); |
---|
| 1023 | delete $1; // allocated by lexer |
---|
| 1024 | } |
---|
[7f5566b] | 1025 | | label_list ',' no_attr_identifier |
---|
[ab57786] | 1026 | { |
---|
| 1027 | $$ = $1; $1->labels.push_back( *$3 ); |
---|
| 1028 | delete $3; // allocated by lexer |
---|
| 1029 | } |
---|
[4d51835] | 1030 | ; |
---|
[51b7345] | 1031 | |
---|
[c11e31c] | 1032 | //******************************* DECLARATIONS ********************************* |
---|
[51b7345] | 1033 | |
---|
[b87a5ed] | 1034 | declaration_list_opt: // used at beginning of switch statement |
---|
[4d51835] | 1035 | pop |
---|
[58dd019] | 1036 | { $$ = nullptr; } |
---|
[4d51835] | 1037 | | declaration_list |
---|
| 1038 | ; |
---|
[51b7345] | 1039 | |
---|
| 1040 | declaration_list: |
---|
[4d51835] | 1041 | declaration |
---|
| 1042 | | declaration_list push declaration |
---|
| 1043 | { $$ = $1->appendList( $3 ); } |
---|
| 1044 | ; |
---|
[51b7345] | 1045 | |
---|
[b87a5ed] | 1046 | old_declaration_list_opt: // used to declare parameter types in K&R style functions |
---|
[4d51835] | 1047 | pop |
---|
[58dd019] | 1048 | { $$ = nullptr; } |
---|
[4d51835] | 1049 | | old_declaration_list |
---|
| 1050 | ; |
---|
[51b7345] | 1051 | |
---|
| 1052 | old_declaration_list: |
---|
[4d51835] | 1053 | old_declaration |
---|
| 1054 | | old_declaration_list push old_declaration |
---|
| 1055 | { $$ = $1->appendList( $3 ); } |
---|
| 1056 | ; |
---|
[b87a5ed] | 1057 | |
---|
[51b1202] | 1058 | local_label_declaration_opt: // GCC, local label |
---|
[4d51835] | 1059 | // empty |
---|
[51b1202] | 1060 | | local_label_declaration_list |
---|
[4d51835] | 1061 | ; |
---|
[b87a5ed] | 1062 | |
---|
[51b1202] | 1063 | local_label_declaration_list: // GCC, local label |
---|
| 1064 | LABEL local_label_list ';' |
---|
| 1065 | | local_label_declaration_list LABEL local_label_list ';' |
---|
[4d51835] | 1066 | ; |
---|
[b87a5ed] | 1067 | |
---|
[51b1202] | 1068 | local_label_list: // GCC, local label |
---|
[7f5566b] | 1069 | no_attr_identifier_or_type_name {} |
---|
[51b1202] | 1070 | | local_label_list ',' no_attr_identifier_or_type_name {} |
---|
[4d51835] | 1071 | ; |
---|
[b87a5ed] | 1072 | |
---|
| 1073 | declaration: // CFA, new & old style declarations |
---|
[4d51835] | 1074 | new_declaration |
---|
| 1075 | | old_declaration |
---|
| 1076 | ; |
---|
[b87a5ed] | 1077 | |
---|
[de62360d] | 1078 | // C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function |
---|
| 1079 | // declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to |
---|
| 1080 | // the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration |
---|
| 1081 | // modifiers are interpreted from left to right and the entire type specification is distributed across all variables in |
---|
| 1082 | // the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program |
---|
| 1083 | // block, but cannot be mixed within a specific declaration. |
---|
[c11e31c] | 1084 | // |
---|
[b87a5ed] | 1085 | // CFA C |
---|
| 1086 | // [10] int x; int x[10]; // array of 10 integers |
---|
| 1087 | // [10] * char y; char *y[10]; // array of 10 pointers to char |
---|
| 1088 | |
---|
| 1089 | new_declaration: // CFA |
---|
[4d51835] | 1090 | new_variable_declaration pop ';' |
---|
| 1091 | | new_typedef_declaration pop ';' |
---|
| 1092 | | new_function_declaration pop ';' |
---|
| 1093 | | type_declaring_list pop ';' |
---|
[4040425] | 1094 | | trait_specifier pop ';' |
---|
[4d51835] | 1095 | ; |
---|
[b87a5ed] | 1096 | |
---|
| 1097 | new_variable_declaration: // CFA |
---|
[4d51835] | 1098 | new_variable_specifier initializer_opt |
---|
| 1099 | { |
---|
| 1100 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[3cfe27f] | 1101 | $$ = $1->addInitializer( $2 ); |
---|
[4d51835] | 1102 | } |
---|
| 1103 | | declaration_qualifier_list new_variable_specifier initializer_opt |
---|
[de62360d] | 1104 | // declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude |
---|
| 1105 | // them as a type_qualifier cannot appear in that context. |
---|
[4d51835] | 1106 | { |
---|
| 1107 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[3cfe27f] | 1108 | $$ = $2->addQualifiers( $1 )->addInitializer( $3 );; |
---|
[4d51835] | 1109 | } |
---|
[2871210] | 1110 | | new_variable_declaration pop ',' push identifier_or_type_name initializer_opt |
---|
[4d51835] | 1111 | { |
---|
| 1112 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID ); |
---|
[3cfe27f] | 1113 | $$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) ); |
---|
[4d51835] | 1114 | } |
---|
| 1115 | ; |
---|
[b87a5ed] | 1116 | |
---|
| 1117 | new_variable_specifier: // CFA |
---|
[de62360d] | 1118 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static |
---|
| 1119 | // storage-class |
---|
[2871210] | 1120 | new_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt |
---|
[4d51835] | 1121 | { |
---|
| 1122 | typedefTable.setNextIdentifier( *$2 ); |
---|
[58dd019] | 1123 | $$ = $1->addName( $2 )->addAsmName( $3 ); |
---|
[4d51835] | 1124 | } |
---|
[2871210] | 1125 | | new_abstract_tuple identifier_or_type_name asm_name_opt |
---|
[4d51835] | 1126 | { |
---|
| 1127 | typedefTable.setNextIdentifier( *$2 ); |
---|
[58dd019] | 1128 | $$ = $1->addName( $2 )->addAsmName( $3 ); |
---|
[4d51835] | 1129 | } |
---|
[2871210] | 1130 | | type_qualifier_list new_abstract_tuple identifier_or_type_name asm_name_opt |
---|
[4d51835] | 1131 | { |
---|
| 1132 | typedefTable.setNextIdentifier( *$3 ); |
---|
[58dd019] | 1133 | $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); |
---|
[4d51835] | 1134 | } |
---|
| 1135 | ; |
---|
[b87a5ed] | 1136 | |
---|
| 1137 | new_function_declaration: // CFA |
---|
[4d51835] | 1138 | new_function_specifier |
---|
| 1139 | { |
---|
| 1140 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1141 | $$ = $1; |
---|
| 1142 | } |
---|
| 1143 | | type_qualifier_list new_function_specifier |
---|
| 1144 | { |
---|
| 1145 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1146 | $$ = $2->addQualifiers( $1 ); |
---|
| 1147 | } |
---|
| 1148 | | declaration_qualifier_list new_function_specifier |
---|
| 1149 | { |
---|
| 1150 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1151 | $$ = $2->addQualifiers( $1 ); |
---|
| 1152 | } |
---|
| 1153 | | declaration_qualifier_list type_qualifier_list new_function_specifier |
---|
| 1154 | { |
---|
| 1155 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 1156 | $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); |
---|
| 1157 | } |
---|
[2871210] | 1158 | | new_function_declaration pop ',' push identifier_or_type_name |
---|
[4d51835] | 1159 | { |
---|
| 1160 | typedefTable.addToEnclosingScope( *$5, TypedefTable::ID ); |
---|
| 1161 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1162 | } |
---|
| 1163 | ; |
---|
[b87a5ed] | 1164 | |
---|
| 1165 | new_function_specifier: // CFA |
---|
[1b29996] | 1166 | // '[' ']' identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' // S/R conflict |
---|
| 1167 | // { |
---|
| 1168 | // $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true ); |
---|
| 1169 | // } |
---|
[2871210] | 1170 | // '[' ']' identifier '(' push new_parameter_type_list_opt pop ')' |
---|
| 1171 | // { |
---|
| 1172 | // typedefTable.setNextIdentifier( *$5 ); |
---|
| 1173 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1174 | // } |
---|
| 1175 | // | '[' ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')' |
---|
| 1176 | // { |
---|
| 1177 | // typedefTable.setNextIdentifier( *$5 ); |
---|
| 1178 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1179 | // } |
---|
| 1180 | // | '[' ']' typegen_name |
---|
| 1181 | // identifier_or_type_name must be broken apart because of the sequence: |
---|
[4d51835] | 1182 | // |
---|
[2871210] | 1183 | // '[' ']' identifier_or_type_name '(' new_parameter_type_list_opt ')' |
---|
[4d51835] | 1184 | // '[' ']' type_specifier |
---|
| 1185 | // |
---|
[2871210] | 1186 | // type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be |
---|
| 1187 | // flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name. |
---|
[1b29996] | 1188 | new_abstract_tuple identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' |
---|
[de62360d] | 1189 | // To obtain LR(1 ), this rule must be factored out from function return type (see new_abstract_declarator). |
---|
[4d51835] | 1190 | { |
---|
| 1191 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true ); |
---|
| 1192 | } |
---|
[2871210] | 1193 | | new_function_return identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' |
---|
[4d51835] | 1194 | { |
---|
| 1195 | $$ = DeclarationNode::newFunction( $2, $1, $5, 0, true ); |
---|
| 1196 | } |
---|
| 1197 | ; |
---|
[b87a5ed] | 1198 | |
---|
| 1199 | new_function_return: // CFA |
---|
[4d51835] | 1200 | '[' push new_parameter_list pop ']' |
---|
| 1201 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
| 1202 | | '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']' |
---|
[de62360d] | 1203 | // To obtain LR(1 ), the last new_abstract_parameter_list is added into this flattened rule to lookahead to the |
---|
| 1204 | // ']'. |
---|
[4d51835] | 1205 | { $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); } |
---|
| 1206 | ; |
---|
[b87a5ed] | 1207 | |
---|
| 1208 | new_typedef_declaration: // CFA |
---|
[4d51835] | 1209 | TYPEDEF new_variable_specifier |
---|
| 1210 | { |
---|
[de62360d] | 1211 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1212 | $$ = $2->addTypedef(); |
---|
| 1213 | } |
---|
| 1214 | | TYPEDEF new_function_specifier |
---|
| 1215 | { |
---|
[de62360d] | 1216 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1217 | $$ = $2->addTypedef(); |
---|
| 1218 | } |
---|
| 1219 | | new_typedef_declaration pop ',' push no_attr_identifier |
---|
| 1220 | { |
---|
[de62360d] | 1221 | typedefTable.addToEnclosingScope( *$5, TypedefTable::TD ); |
---|
[4d51835] | 1222 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1223 | } |
---|
| 1224 | ; |
---|
[b87a5ed] | 1225 | |
---|
[de62360d] | 1226 | // Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as |
---|
| 1227 | // a separate form of declaration, which syntactically precludes storage-class specifiers and initialization. |
---|
[51b7345] | 1228 | |
---|
| 1229 | typedef_declaration: |
---|
[4d51835] | 1230 | TYPEDEF type_specifier declarator |
---|
| 1231 | { |
---|
[de62360d] | 1232 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1233 | $$ = $3->addType( $2 )->addTypedef(); |
---|
| 1234 | } |
---|
| 1235 | | typedef_declaration pop ',' push declarator |
---|
| 1236 | { |
---|
[de62360d] | 1237 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1238 | $$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() ); |
---|
| 1239 | } |
---|
[de62360d] | 1240 | | type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 ) |
---|
[4d51835] | 1241 | { |
---|
[de62360d] | 1242 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1243 | $$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef(); |
---|
| 1244 | } |
---|
| 1245 | | type_specifier TYPEDEF declarator |
---|
| 1246 | { |
---|
[de62360d] | 1247 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
[4d51835] | 1248 | $$ = $3->addType( $1 )->addTypedef(); |
---|
| 1249 | } |
---|
| 1250 | | type_specifier TYPEDEF type_qualifier_list declarator |
---|
| 1251 | { |
---|
[de62360d] | 1252 | typedefTable.addToEnclosingScope( TypedefTable::TD ); |
---|
| 1253 | $$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 ); |
---|
[4d51835] | 1254 | } |
---|
| 1255 | ; |
---|
[b87a5ed] | 1256 | |
---|
[721f17a] | 1257 | typedef_expression: |
---|
| 1258 | // GCC, naming expression type: typedef name = exp; gives a name to the type of an expression |
---|
[4d51835] | 1259 | TYPEDEF no_attr_identifier '=' assignment_expression |
---|
| 1260 | { |
---|
[de62360d] | 1261 | typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); |
---|
[4d51835] | 1262 | $$ = DeclarationNode::newName( 0 ); // XXX |
---|
| 1263 | } |
---|
| 1264 | | typedef_expression pop ',' push no_attr_identifier '=' assignment_expression |
---|
| 1265 | { |
---|
[de62360d] | 1266 | typedefTable.addToEnclosingScope( *$5, TypedefTable::TD ); |
---|
[4d51835] | 1267 | $$ = DeclarationNode::newName( 0 ); // XXX |
---|
| 1268 | } |
---|
| 1269 | ; |
---|
[51b7345] | 1270 | |
---|
| 1271 | old_declaration: |
---|
[4d51835] | 1272 | declaring_list pop ';' |
---|
| 1273 | | typedef_declaration pop ';' |
---|
| 1274 | | typedef_expression pop ';' // GCC, naming expression type |
---|
| 1275 | | sue_declaration_specifier pop ';' |
---|
| 1276 | ; |
---|
[51b7345] | 1277 | |
---|
| 1278 | declaring_list: |
---|
[de62360d] | 1279 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static |
---|
| 1280 | // storage-class |
---|
[4d51835] | 1281 | declaration_specifier declarator asm_name_opt initializer_opt |
---|
| 1282 | { |
---|
| 1283 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[58dd019] | 1284 | $$ = ( $2->addType( $1 ))->addAsmName( $3 )->addInitializer( $4 ); |
---|
[4d51835] | 1285 | } |
---|
| 1286 | | declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt |
---|
| 1287 | { |
---|
| 1288 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[58dd019] | 1289 | $$ = $1->appendList( $1->cloneBaseType( $4->addAsmName( $5 )->addInitializer( $6 ) ) ); |
---|
[4d51835] | 1290 | } |
---|
| 1291 | ; |
---|
[b87a5ed] | 1292 | |
---|
| 1293 | declaration_specifier: // type specifier + storage class |
---|
[4d51835] | 1294 | basic_declaration_specifier |
---|
| 1295 | | sue_declaration_specifier |
---|
| 1296 | | typedef_declaration_specifier |
---|
| 1297 | | typegen_declaration_specifier |
---|
| 1298 | ; |
---|
[b87a5ed] | 1299 | |
---|
| 1300 | type_specifier: // declaration specifier - storage class |
---|
[4d51835] | 1301 | basic_type_specifier |
---|
| 1302 | | sue_type_specifier |
---|
| 1303 | | typedef_type_specifier |
---|
| 1304 | | typegen_type_specifier |
---|
| 1305 | ; |
---|
[b87a5ed] | 1306 | |
---|
| 1307 | type_qualifier_list_opt: // GCC, used in asm_statement |
---|
[4d51835] | 1308 | // empty |
---|
[58dd019] | 1309 | { $$ = nullptr; } |
---|
[4d51835] | 1310 | | type_qualifier_list |
---|
| 1311 | ; |
---|
[51b7345] | 1312 | |
---|
| 1313 | type_qualifier_list: |
---|
[de62360d] | 1314 | // A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration. |
---|
[4d51835] | 1315 | // |
---|
[de62360d] | 1316 | // ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same |
---|
| 1317 | // specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it |
---|
| 1318 | // appeared only once. |
---|
[4d51835] | 1319 | type_qualifier |
---|
| 1320 | | type_qualifier_list type_qualifier |
---|
| 1321 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1322 | ; |
---|
[51b7345] | 1323 | |
---|
| 1324 | type_qualifier: |
---|
[4d51835] | 1325 | type_qualifier_name |
---|
| 1326 | | attribute |
---|
[c1c1112] | 1327 | //{ $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); } |
---|
[4d51835] | 1328 | ; |
---|
[51b7345] | 1329 | |
---|
| 1330 | type_qualifier_name: |
---|
[4d51835] | 1331 | CONST |
---|
| 1332 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); } |
---|
| 1333 | | RESTRICT |
---|
| 1334 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); } |
---|
| 1335 | | VOLATILE |
---|
| 1336 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); } |
---|
| 1337 | | LVALUE // CFA |
---|
| 1338 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); } |
---|
| 1339 | | ATOMIC |
---|
| 1340 | { $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); } |
---|
| 1341 | | FORALL '(' |
---|
| 1342 | { |
---|
| 1343 | typedefTable.enterScope(); |
---|
| 1344 | } |
---|
| 1345 | type_parameter_list ')' // CFA |
---|
| 1346 | { |
---|
| 1347 | typedefTable.leaveScope(); |
---|
| 1348 | $$ = DeclarationNode::newForall( $4 ); |
---|
| 1349 | } |
---|
| 1350 | ; |
---|
[51b7345] | 1351 | |
---|
| 1352 | declaration_qualifier_list: |
---|
[4d51835] | 1353 | storage_class_list |
---|
[de62360d] | 1354 | | type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 ) |
---|
[4d51835] | 1355 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1356 | | declaration_qualifier_list type_qualifier_list storage_class_list |
---|
| 1357 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1358 | ; |
---|
[51b7345] | 1359 | |
---|
| 1360 | storage_class_list: |
---|
[de62360d] | 1361 | // A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that |
---|
| 1362 | // only one of each is specified, except for inline, which can appear with the others. |
---|
[4d51835] | 1363 | // |
---|
[de62360d] | 1364 | // ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration |
---|
| 1365 | // specifiers in a declaration. |
---|
[4d51835] | 1366 | storage_class |
---|
| 1367 | | storage_class_list storage_class |
---|
| 1368 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1369 | ; |
---|
[51b7345] | 1370 | |
---|
| 1371 | storage_class: |
---|
[4d51835] | 1372 | EXTERN |
---|
| 1373 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); } |
---|
| 1374 | | STATIC |
---|
| 1375 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); } |
---|
| 1376 | | AUTO |
---|
| 1377 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); } |
---|
| 1378 | | REGISTER |
---|
| 1379 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); } |
---|
| 1380 | | INLINE // C99 |
---|
[c1c1112] | 1381 | //{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); } |
---|
| 1382 | { $$ = new DeclarationNode; $$->isInline = true; } |
---|
[4d51835] | 1383 | | FORTRAN // C99 |
---|
| 1384 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); } |
---|
[68cd1ce] | 1385 | | NORETURN // C11 |
---|
[c1c1112] | 1386 | //{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Noreturn ); } |
---|
| 1387 | { $$ = new DeclarationNode; $$->isNoreturn = true; } |
---|
[68cd1ce] | 1388 | | THREADLOCAL // C11 |
---|
| 1389 | { $$ = DeclarationNode::newStorageClass( DeclarationNode::Threadlocal ); } |
---|
[4d51835] | 1390 | ; |
---|
[51b7345] | 1391 | |
---|
| 1392 | basic_type_name: |
---|
[4d51835] | 1393 | CHAR |
---|
| 1394 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); } |
---|
| 1395 | | DOUBLE |
---|
| 1396 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); } |
---|
| 1397 | | FLOAT |
---|
| 1398 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); } |
---|
| 1399 | | INT |
---|
| 1400 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); } |
---|
| 1401 | | LONG |
---|
[5b639ee] | 1402 | { $$ = DeclarationNode::newLength( DeclarationNode::Long ); } |
---|
[4d51835] | 1403 | | SHORT |
---|
[5b639ee] | 1404 | { $$ = DeclarationNode::newLength( DeclarationNode::Short ); } |
---|
[4d51835] | 1405 | | SIGNED |
---|
[5b639ee] | 1406 | { $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); } |
---|
[4d51835] | 1407 | | UNSIGNED |
---|
[5b639ee] | 1408 | { $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); } |
---|
[4d51835] | 1409 | | VOID |
---|
| 1410 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); } |
---|
| 1411 | | BOOL // C99 |
---|
| 1412 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); } |
---|
| 1413 | | COMPLEX // C99 |
---|
[5b639ee] | 1414 | { $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); } |
---|
[4d51835] | 1415 | | IMAGINARY // C99 |
---|
[5b639ee] | 1416 | { $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); } |
---|
[90c3b1c] | 1417 | | VALIST // GCC, __builtin_va_list |
---|
| 1418 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); } |
---|
[3a2128f] | 1419 | | ZERO_T |
---|
[148f7290] | 1420 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::Zero ); } |
---|
[3a2128f] | 1421 | | ONE_T |
---|
[148f7290] | 1422 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::One ); } |
---|
[4d51835] | 1423 | ; |
---|
[51b7345] | 1424 | |
---|
| 1425 | basic_declaration_specifier: |
---|
[4d51835] | 1426 | // A semantic check is necessary for conflicting storage classes. |
---|
| 1427 | basic_type_specifier |
---|
| 1428 | | declaration_qualifier_list basic_type_specifier |
---|
| 1429 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1430 | | basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1431 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1432 | | basic_declaration_specifier storage_class type_qualifier_list |
---|
| 1433 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1434 | | basic_declaration_specifier storage_class basic_type_specifier |
---|
| 1435 | { $$ = $3->addQualifiers( $2 )->addType( $1 ); } |
---|
| 1436 | ; |
---|
[51b7345] | 1437 | |
---|
| 1438 | basic_type_specifier: |
---|
[4d51835] | 1439 | direct_type_name |
---|
| 1440 | | type_qualifier_list_opt indirect_type_name type_qualifier_list_opt |
---|
| 1441 | { $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); } |
---|
| 1442 | ; |
---|
[51b7345] | 1443 | |
---|
| 1444 | direct_type_name: |
---|
[4d51835] | 1445 | // A semantic check is necessary for conflicting type qualifiers. |
---|
| 1446 | basic_type_name |
---|
| 1447 | | type_qualifier_list basic_type_name |
---|
| 1448 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1449 | | direct_type_name type_qualifier |
---|
| 1450 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1451 | | direct_type_name basic_type_name |
---|
| 1452 | { $$ = $1->addType( $2 ); } |
---|
| 1453 | ; |
---|
[51b7345] | 1454 | |
---|
| 1455 | indirect_type_name: |
---|
[4d51835] | 1456 | TYPEOF '(' type_name ')' // GCC: typeof(x) y; |
---|
| 1457 | { $$ = $3; } |
---|
| 1458 | | TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y; |
---|
| 1459 | { $$ = DeclarationNode::newTypeof( $3 ); } |
---|
| 1460 | | ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y; |
---|
| 1461 | { $$ = DeclarationNode::newAttr( $1, $3 ); } |
---|
| 1462 | | ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y; |
---|
| 1463 | { $$ = DeclarationNode::newAttr( $1, $3 ); } |
---|
| 1464 | ; |
---|
[51b7345] | 1465 | |
---|
| 1466 | sue_declaration_specifier: |
---|
[4d51835] | 1467 | sue_type_specifier |
---|
| 1468 | | declaration_qualifier_list sue_type_specifier |
---|
| 1469 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1470 | | sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1471 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1472 | | sue_declaration_specifier storage_class type_qualifier_list |
---|
| 1473 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1474 | ; |
---|
[51b7345] | 1475 | |
---|
| 1476 | sue_type_specifier: |
---|
[4d51835] | 1477 | elaborated_type_name // struct, union, enum |
---|
| 1478 | | type_qualifier_list elaborated_type_name |
---|
| 1479 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1480 | | sue_type_specifier type_qualifier |
---|
| 1481 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1482 | ; |
---|
[51b7345] | 1483 | |
---|
| 1484 | typedef_declaration_specifier: |
---|
[4d51835] | 1485 | typedef_type_specifier |
---|
| 1486 | | declaration_qualifier_list typedef_type_specifier |
---|
| 1487 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1488 | | typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1489 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1490 | | typedef_declaration_specifier storage_class type_qualifier_list |
---|
| 1491 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1492 | ; |
---|
[b87a5ed] | 1493 | |
---|
| 1494 | typedef_type_specifier: // typedef types |
---|
[4d51835] | 1495 | TYPEDEFname |
---|
| 1496 | { $$ = DeclarationNode::newFromTypedef( $1 ); } |
---|
| 1497 | | type_qualifier_list TYPEDEFname |
---|
| 1498 | { $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); } |
---|
| 1499 | | typedef_type_specifier type_qualifier |
---|
| 1500 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1501 | ; |
---|
[51b7345] | 1502 | |
---|
| 1503 | elaborated_type_name: |
---|
[4d51835] | 1504 | aggregate_name |
---|
| 1505 | | enum_name |
---|
| 1506 | ; |
---|
[51b7345] | 1507 | |
---|
| 1508 | aggregate_name: |
---|
[4d51835] | 1509 | aggregate_key '{' field_declaration_list '}' |
---|
[2298f728] | 1510 | { $$ = DeclarationNode::newAggregate( $1, nullptr, nullptr, $3, true ); } |
---|
[2871210] | 1511 | | aggregate_key no_attr_identifier_or_type_name |
---|
[45161b4d] | 1512 | { |
---|
| 1513 | typedefTable.makeTypedef( *$2 ); |
---|
[2298f728] | 1514 | $$ = DeclarationNode::newAggregate( $1, $2, nullptr, nullptr, false ); |
---|
[45161b4d] | 1515 | } |
---|
| 1516 | | aggregate_key no_attr_identifier_or_type_name |
---|
| 1517 | { typedefTable.makeTypedef( *$2 ); } |
---|
| 1518 | '{' field_declaration_list '}' |
---|
[1b77274] | 1519 | { $$ = DeclarationNode::newAggregate( $1, $2, nullptr, $5, true ); } |
---|
[721f17a] | 1520 | | aggregate_key '(' type_name_list ')' '{' field_declaration_list '}' // CFA |
---|
[2298f728] | 1521 | { $$ = DeclarationNode::newAggregate( $1, nullptr, $3, $6, false ); } |
---|
[2871210] | 1522 | | aggregate_key typegen_name // CFA, S/R conflict |
---|
| 1523 | { $$ = $2; } |
---|
[4d51835] | 1524 | ; |
---|
[51b7345] | 1525 | |
---|
| 1526 | aggregate_key: |
---|
[4d51835] | 1527 | STRUCT attribute_list_opt |
---|
| 1528 | { $$ = DeclarationNode::Struct; } |
---|
| 1529 | | UNION attribute_list_opt |
---|
| 1530 | { $$ = DeclarationNode::Union; } |
---|
| 1531 | ; |
---|
[51b7345] | 1532 | |
---|
| 1533 | field_declaration_list: |
---|
[5d125e4] | 1534 | // empty |
---|
[58dd019] | 1535 | { $$ = nullptr; } |
---|
[4d51835] | 1536 | | field_declaration_list field_declaration |
---|
[5d125e4] | 1537 | { $$ = $1 != 0 ? $1->appendList( $2 ) : $2; } |
---|
[4d51835] | 1538 | ; |
---|
[51b7345] | 1539 | |
---|
| 1540 | field_declaration: |
---|
[4d51835] | 1541 | new_field_declaring_list ';' // CFA, new style field declaration |
---|
| 1542 | | EXTENSION new_field_declaring_list ';' // GCC |
---|
[ca35c51] | 1543 | { $$ = $2->set_extension( true ); } |
---|
[4d51835] | 1544 | | field_declaring_list ';' |
---|
| 1545 | | EXTENSION field_declaring_list ';' // GCC |
---|
[8e9cbb2] | 1546 | { // mark all fields in list |
---|
[926af74] | 1547 | for ( DeclarationNode *iter = $2; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) |
---|
[8e9cbb2] | 1548 | iter->set_extension( true ); |
---|
| 1549 | $$ = $2; |
---|
| 1550 | } |
---|
[4d51835] | 1551 | ; |
---|
[b87a5ed] | 1552 | |
---|
| 1553 | new_field_declaring_list: // CFA, new style field declaration |
---|
[4d51835] | 1554 | new_abstract_declarator_tuple // CFA, no field name |
---|
[2871210] | 1555 | | new_abstract_declarator_tuple no_attr_identifier_or_type_name |
---|
[4d51835] | 1556 | { $$ = $1->addName( $2 ); } |
---|
[2871210] | 1557 | | new_field_declaring_list ',' no_attr_identifier_or_type_name |
---|
[4d51835] | 1558 | { $$ = $1->appendList( $1->cloneType( $3 ) ); } |
---|
| 1559 | | new_field_declaring_list ',' // CFA, no field name |
---|
| 1560 | { $$ = $1->appendList( $1->cloneType( 0 ) ); } |
---|
| 1561 | ; |
---|
[51b7345] | 1562 | |
---|
| 1563 | field_declaring_list: |
---|
[4d51835] | 1564 | type_specifier field_declarator |
---|
| 1565 | { $$ = $2->addType( $1 ); } |
---|
| 1566 | | field_declaring_list ',' attribute_list_opt field_declarator |
---|
| 1567 | { $$ = $1->appendList( $1->cloneBaseType( $4 ) ); } |
---|
| 1568 | ; |
---|
[51b7345] | 1569 | |
---|
| 1570 | field_declarator: |
---|
[4d51835] | 1571 | // empty |
---|
| 1572 | { $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name |
---|
| 1573 | | bit_subrange_size // no field name |
---|
| 1574 | { $$ = DeclarationNode::newBitfield( $1 ); } |
---|
| 1575 | | variable_declarator bit_subrange_size_opt |
---|
| 1576 | // A semantic check is required to ensure bit_subrange only appears on base type int. |
---|
| 1577 | { $$ = $1->addBitfield( $2 ); } |
---|
[c6b1105] | 1578 | | variable_type_redeclarator bit_subrange_size_opt |
---|
[4d51835] | 1579 | // A semantic check is required to ensure bit_subrange only appears on base type int. |
---|
| 1580 | { $$ = $1->addBitfield( $2 ); } |
---|
| 1581 | | variable_abstract_declarator // CFA, no field name |
---|
| 1582 | ; |
---|
[51b7345] | 1583 | |
---|
| 1584 | bit_subrange_size_opt: |
---|
[4d51835] | 1585 | // empty |
---|
[58dd019] | 1586 | { $$ = nullptr; } |
---|
[4d51835] | 1587 | | bit_subrange_size |
---|
| 1588 | { $$ = $1; } |
---|
| 1589 | ; |
---|
[51b7345] | 1590 | |
---|
| 1591 | bit_subrange_size: |
---|
[4d51835] | 1592 | ':' constant_expression |
---|
| 1593 | { $$ = $2; } |
---|
| 1594 | ; |
---|
[51b7345] | 1595 | |
---|
| 1596 | enum_key: |
---|
[4d51835] | 1597 | ENUM attribute_list_opt |
---|
| 1598 | ; |
---|
[51b7345] | 1599 | |
---|
| 1600 | enum_name: |
---|
[4d51835] | 1601 | enum_key '{' enumerator_list comma_opt '}' |
---|
[2298f728] | 1602 | { $$ = DeclarationNode::newEnum( nullptr, $3 ); } |
---|
[2871210] | 1603 | | enum_key no_attr_identifier_or_type_name |
---|
[45161b4d] | 1604 | { |
---|
| 1605 | typedefTable.makeTypedef( *$2 ); |
---|
| 1606 | $$ = DeclarationNode::newEnum( $2, 0 ); |
---|
| 1607 | } |
---|
| 1608 | | enum_key no_attr_identifier_or_type_name |
---|
| 1609 | { typedefTable.makeTypedef( *$2 ); } |
---|
| 1610 | '{' enumerator_list comma_opt '}' |
---|
| 1611 | { $$ = DeclarationNode::newEnum( $2, $5 ); } |
---|
[4d51835] | 1612 | ; |
---|
[51b7345] | 1613 | |
---|
| 1614 | enumerator_list: |
---|
[2871210] | 1615 | no_attr_identifier_or_type_name enumerator_value_opt |
---|
[4d51835] | 1616 | { $$ = DeclarationNode::newEnumConstant( $1, $2 ); } |
---|
[2871210] | 1617 | | enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt |
---|
[4d51835] | 1618 | { $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); } |
---|
| 1619 | ; |
---|
[51b7345] | 1620 | |
---|
| 1621 | enumerator_value_opt: |
---|
[4d51835] | 1622 | // empty |
---|
[58dd019] | 1623 | { $$ = nullptr; } |
---|
[4d51835] | 1624 | | '=' constant_expression |
---|
| 1625 | { $$ = $2; } |
---|
| 1626 | ; |
---|
[51b7345] | 1627 | |
---|
[c11e31c] | 1628 | // Minimum of one parameter after which ellipsis is allowed only at the end. |
---|
[51b7345] | 1629 | |
---|
[b87a5ed] | 1630 | new_parameter_type_list_opt: // CFA |
---|
[4d51835] | 1631 | // empty |
---|
[58dd019] | 1632 | { $$ = nullptr; } |
---|
[4d51835] | 1633 | | new_parameter_type_list |
---|
| 1634 | ; |
---|
[b87a5ed] | 1635 | |
---|
| 1636 | new_parameter_type_list: // CFA, abstract + real |
---|
[4d51835] | 1637 | new_abstract_parameter_list |
---|
| 1638 | | new_parameter_list |
---|
| 1639 | | new_parameter_list pop ',' push new_abstract_parameter_list |
---|
| 1640 | { $$ = $1->appendList( $5 ); } |
---|
| 1641 | | new_abstract_parameter_list pop ',' push ELLIPSIS |
---|
| 1642 | { $$ = $1->addVarArgs(); } |
---|
| 1643 | | new_parameter_list pop ',' push ELLIPSIS |
---|
| 1644 | { $$ = $1->addVarArgs(); } |
---|
| 1645 | ; |
---|
[b87a5ed] | 1646 | |
---|
| 1647 | new_parameter_list: // CFA |
---|
[de62360d] | 1648 | // To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last new_abstract_parameter_list is |
---|
| 1649 | // factored out from new_parameter_list, flattening the rules to get lookahead to the ']'. |
---|
[4d51835] | 1650 | new_parameter_declaration |
---|
| 1651 | | new_abstract_parameter_list pop ',' push new_parameter_declaration |
---|
| 1652 | { $$ = $1->appendList( $5 ); } |
---|
| 1653 | | new_parameter_list pop ',' push new_parameter_declaration |
---|
| 1654 | { $$ = $1->appendList( $5 ); } |
---|
| 1655 | | new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration |
---|
| 1656 | { $$ = $1->appendList( $5 )->appendList( $9 ); } |
---|
| 1657 | ; |
---|
[b87a5ed] | 1658 | |
---|
| 1659 | new_abstract_parameter_list: // CFA, new & old style abstract |
---|
[4d51835] | 1660 | new_abstract_parameter_declaration |
---|
| 1661 | | new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration |
---|
| 1662 | { $$ = $1->appendList( $5 ); } |
---|
| 1663 | ; |
---|
[51b7345] | 1664 | |
---|
| 1665 | parameter_type_list_opt: |
---|
[4d51835] | 1666 | // empty |
---|
[58dd019] | 1667 | { $$ = nullptr; } |
---|
[4d51835] | 1668 | | parameter_type_list |
---|
| 1669 | ; |
---|
[51b7345] | 1670 | |
---|
| 1671 | parameter_type_list: |
---|
[4d51835] | 1672 | parameter_list |
---|
| 1673 | | parameter_list pop ',' push ELLIPSIS |
---|
| 1674 | { $$ = $1->addVarArgs(); } |
---|
| 1675 | ; |
---|
[b87a5ed] | 1676 | |
---|
| 1677 | parameter_list: // abstract + real |
---|
[4d51835] | 1678 | abstract_parameter_declaration |
---|
| 1679 | | parameter_declaration |
---|
| 1680 | | parameter_list pop ',' push abstract_parameter_declaration |
---|
| 1681 | { $$ = $1->appendList( $5 ); } |
---|
| 1682 | | parameter_list pop ',' push parameter_declaration |
---|
| 1683 | { $$ = $1->appendList( $5 ); } |
---|
| 1684 | ; |
---|
[51b7345] | 1685 | |
---|
[de62360d] | 1686 | // Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics |
---|
[2871210] | 1687 | // for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes. |
---|
[51b7345] | 1688 | |
---|
[b87a5ed] | 1689 | new_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 1690 | parameter_declaration |
---|
[2871210] | 1691 | | new_identifier_parameter_declarator_no_tuple identifier_or_type_name assignment_opt |
---|
[4d51835] | 1692 | { $$ = $1->addName( $2 ); } |
---|
[2871210] | 1693 | | new_abstract_tuple identifier_or_type_name assignment_opt |
---|
[4d51835] | 1694 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator). |
---|
| 1695 | { $$ = $1->addName( $2 ); } |
---|
[2871210] | 1696 | | type_qualifier_list new_abstract_tuple identifier_or_type_name assignment_opt |
---|
[4d51835] | 1697 | { $$ = $2->addName( $3 )->addQualifiers( $1 ); } |
---|
| 1698 | | new_function_specifier |
---|
| 1699 | ; |
---|
[b87a5ed] | 1700 | |
---|
| 1701 | new_abstract_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 1702 | abstract_parameter_declaration |
---|
| 1703 | | new_identifier_parameter_declarator_no_tuple |
---|
| 1704 | | new_abstract_tuple |
---|
| 1705 | // To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator). |
---|
| 1706 | | type_qualifier_list new_abstract_tuple |
---|
| 1707 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1708 | | new_abstract_function |
---|
| 1709 | ; |
---|
[51b7345] | 1710 | |
---|
| 1711 | parameter_declaration: |
---|
[4d51835] | 1712 | declaration_specifier identifier_parameter_declarator assignment_opt |
---|
| 1713 | { |
---|
| 1714 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[de62360d] | 1715 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) ); |
---|
[4d51835] | 1716 | } |
---|
[2871210] | 1717 | | declaration_specifier type_parameter_redeclarator assignment_opt |
---|
[4d51835] | 1718 | { |
---|
| 1719 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
[de62360d] | 1720 | $$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) ); |
---|
[4d51835] | 1721 | } |
---|
| 1722 | ; |
---|
[51b7345] | 1723 | |
---|
| 1724 | abstract_parameter_declaration: |
---|
[4d51835] | 1725 | declaration_specifier |
---|
| 1726 | | declaration_specifier abstract_parameter_declarator |
---|
| 1727 | { $$ = $2->addType( $1 ); } |
---|
| 1728 | ; |
---|
[51b7345] | 1729 | |
---|
[c11e31c] | 1730 | // ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a |
---|
[de62360d] | 1731 | // parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on |
---|
| 1732 | // identifiers. The ANSI-style parameter-list can redefine a typedef name. |
---|
[51b7345] | 1733 | |
---|
[b87a5ed] | 1734 | identifier_list: // K&R-style parameter list => no types |
---|
[4d51835] | 1735 | no_attr_identifier |
---|
| 1736 | { $$ = DeclarationNode::newName( $1 ); } |
---|
| 1737 | | identifier_list ',' no_attr_identifier |
---|
| 1738 | { $$ = $1->appendList( DeclarationNode::newName( $3 ) ); } |
---|
| 1739 | ; |
---|
[51b7345] | 1740 | |
---|
[2871210] | 1741 | identifier_or_type_name: |
---|
[4d51835] | 1742 | identifier |
---|
| 1743 | | TYPEDEFname |
---|
| 1744 | | TYPEGENname |
---|
| 1745 | ; |
---|
[51b7345] | 1746 | |
---|
[2871210] | 1747 | no_01_identifier_or_type_name: |
---|
[4d51835] | 1748 | no_01_identifier |
---|
| 1749 | | TYPEDEFname |
---|
| 1750 | | TYPEGENname |
---|
| 1751 | ; |
---|
[51b7345] | 1752 | |
---|
[2871210] | 1753 | no_attr_identifier_or_type_name: |
---|
[4d51835] | 1754 | no_attr_identifier |
---|
| 1755 | | TYPEDEFname |
---|
[721f17a] | 1756 | | TYPEGENname |
---|
[4d51835] | 1757 | ; |
---|
[b87a5ed] | 1758 | |
---|
| 1759 | type_name_no_function: // sizeof, alignof, cast (constructor) |
---|
[4d51835] | 1760 | new_abstract_declarator_tuple // CFA |
---|
| 1761 | | type_specifier |
---|
| 1762 | | type_specifier variable_abstract_declarator |
---|
| 1763 | { $$ = $2->addType( $1 ); } |
---|
| 1764 | ; |
---|
[b87a5ed] | 1765 | |
---|
| 1766 | type_name: // typeof, assertion |
---|
[4d51835] | 1767 | new_abstract_declarator_tuple // CFA |
---|
| 1768 | | new_abstract_function // CFA |
---|
| 1769 | | type_specifier |
---|
| 1770 | | type_specifier abstract_declarator |
---|
| 1771 | { $$ = $2->addType( $1 ); } |
---|
| 1772 | ; |
---|
[51b7345] | 1773 | |
---|
| 1774 | initializer_opt: |
---|
[4d51835] | 1775 | // empty |
---|
[58dd019] | 1776 | { $$ = nullptr; } |
---|
[2871210] | 1777 | | '=' initializer |
---|
| 1778 | { $$ = $2; } |
---|
[097e2b0] | 1779 | | ATassign initializer |
---|
[974906e2] | 1780 | { $$ = $2->set_maybeConstructed( false ); } |
---|
[4d51835] | 1781 | ; |
---|
[51b7345] | 1782 | |
---|
| 1783 | initializer: |
---|
[de62360d] | 1784 | assignment_expression { $$ = new InitializerNode( $1 ); } |
---|
| 1785 | | '{' initializer_list comma_opt '}' { $$ = new InitializerNode( $2, true ); } |
---|
[4d51835] | 1786 | ; |
---|
[51b7345] | 1787 | |
---|
| 1788 | initializer_list: |
---|
[097e2b0] | 1789 | // empty |
---|
[58dd019] | 1790 | { $$ = nullptr; } |
---|
[097e2b0] | 1791 | | initializer |
---|
[4d51835] | 1792 | | designation initializer { $$ = $2->set_designators( $1 ); } |
---|
[1d4580a] | 1793 | | initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); } |
---|
[4d51835] | 1794 | | initializer_list ',' designation initializer |
---|
[1d4580a] | 1795 | { $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); } |
---|
[4d51835] | 1796 | ; |
---|
[b87a5ed] | 1797 | |
---|
[de62360d] | 1798 | // There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of |
---|
| 1799 | // '=' to separator the designator from the initializer value, as in: |
---|
[c11e31c] | 1800 | // |
---|
[b87a5ed] | 1801 | // int x[10] = { [1] = 3 }; |
---|
[c11e31c] | 1802 | // |
---|
[de62360d] | 1803 | // The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA |
---|
| 1804 | // changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for |
---|
| 1805 | // field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to |
---|
| 1806 | // shift/reduce conflicts |
---|
[51b7345] | 1807 | |
---|
| 1808 | designation: |
---|
[4d51835] | 1809 | designator_list ':' // C99, CFA uses ":" instead of "=" |
---|
[2871210] | 1810 | | no_attr_identifier_or_type_name ':' // GCC, field name |
---|
[d1625f8] | 1811 | { $$ = new ExpressionNode( build_varref( $1 ) ); } |
---|
[4d51835] | 1812 | ; |
---|
[51b7345] | 1813 | |
---|
[b87a5ed] | 1814 | designator_list: // C99 |
---|
[4d51835] | 1815 | designator |
---|
[2871210] | 1816 | | designator_list designator |
---|
[1d4580a] | 1817 | { $$ = (ExpressionNode *)( $1->set_last( $2 ) ); } |
---|
[d1625f8] | 1818 | //| designator_list designator { $$ = new ExpressionNode( $1, $2 ); } |
---|
[4d51835] | 1819 | ; |
---|
[51b7345] | 1820 | |
---|
| 1821 | designator: |
---|
[d1625f8] | 1822 | '.' no_attr_identifier_or_type_name // C99, field name |
---|
| 1823 | { $$ = new ExpressionNode( build_varref( $2 ) ); } |
---|
[4d51835] | 1824 | | '[' push assignment_expression pop ']' // C99, single array element |
---|
[de62360d] | 1825 | // assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple. |
---|
[d1625f8] | 1826 | { $$ = $3; } |
---|
[4d51835] | 1827 | | '[' push subrange pop ']' // CFA, multiple array elements |
---|
[d1625f8] | 1828 | { $$ = $3; } |
---|
[4d51835] | 1829 | | '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements |
---|
[d1625f8] | 1830 | { $$ = new ExpressionNode( build_range( $3, $5 ) ); } |
---|
[4d51835] | 1831 | | '.' '[' push field_list pop ']' // CFA, tuple field selector |
---|
[d1625f8] | 1832 | { $$ = $4; } |
---|
[4d51835] | 1833 | ; |
---|
[51b7345] | 1834 | |
---|
[de62360d] | 1835 | // The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters, |
---|
| 1836 | // rather than an object-oriented type system. This required four groups of extensions: |
---|
[c11e31c] | 1837 | // |
---|
| 1838 | // Overloading: function, data, and operator identifiers may be overloaded. |
---|
| 1839 | // |
---|
[de62360d] | 1840 | // Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object |
---|
| 1841 | // and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide |
---|
| 1842 | // definitions of new types. Type declarations with storage class "extern" provide opaque types. |
---|
[c11e31c] | 1843 | // |
---|
[de62360d] | 1844 | // Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call |
---|
| 1845 | // site. A polymorphic function is not a template; it is a function, with an address and a type. |
---|
[c11e31c] | 1846 | // |
---|
| 1847 | // Specifications and Assertions: Specifications are collections of declarations parameterized by one or more |
---|
[de62360d] | 1848 | // types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass |
---|
| 1849 | // hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or |
---|
| 1850 | // types provide the operations declared by a specification. Assertions are normally used to declare requirements |
---|
| 1851 | // on type arguments of polymorphic functions. |
---|
[c11e31c] | 1852 | |
---|
[b87a5ed] | 1853 | typegen_declaration_specifier: // CFA |
---|
[4d51835] | 1854 | typegen_type_specifier |
---|
| 1855 | | declaration_qualifier_list typegen_type_specifier |
---|
| 1856 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1857 | | typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1858 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1859 | | typegen_declaration_specifier storage_class type_qualifier_list |
---|
| 1860 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1861 | ; |
---|
[b87a5ed] | 1862 | |
---|
| 1863 | typegen_type_specifier: // CFA |
---|
[2871210] | 1864 | typegen_name |
---|
| 1865 | | type_qualifier_list typegen_name |
---|
| 1866 | { $$ = $2->addQualifiers( $1 ); } |
---|
[4d51835] | 1867 | | typegen_type_specifier type_qualifier |
---|
| 1868 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1869 | ; |
---|
[b87a5ed] | 1870 | |
---|
[2871210] | 1871 | typegen_name: // CFA |
---|
| 1872 | TYPEGENname '(' type_name_list ')' |
---|
| 1873 | { $$ = DeclarationNode::newFromTypeGen( $1, $3 ); } |
---|
| 1874 | ; |
---|
| 1875 | |
---|
[b87a5ed] | 1876 | type_parameter_list: // CFA |
---|
[4d51835] | 1877 | type_parameter assignment_opt |
---|
| 1878 | | type_parameter_list ',' type_parameter assignment_opt |
---|
| 1879 | { $$ = $1->appendList( $3 ); } |
---|
| 1880 | ; |
---|
[b87a5ed] | 1881 | |
---|
| 1882 | type_parameter: // CFA |
---|
[2871210] | 1883 | type_class no_attr_identifier_or_type_name |
---|
| 1884 | { typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); } |
---|
[4d51835] | 1885 | assertion_list_opt |
---|
| 1886 | { $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); } |
---|
| 1887 | | type_specifier identifier_parameter_declarator |
---|
| 1888 | ; |
---|
[b87a5ed] | 1889 | |
---|
| 1890 | type_class: // CFA |
---|
[4040425] | 1891 | OTYPE |
---|
[5b639ee] | 1892 | { $$ = DeclarationNode::Otype; } |
---|
[4d51835] | 1893 | | DTYPE |
---|
| 1894 | { $$ = DeclarationNode::Ftype; } |
---|
| 1895 | | FTYPE |
---|
| 1896 | { $$ = DeclarationNode::Dtype; } |
---|
| 1897 | ; |
---|
[b87a5ed] | 1898 | |
---|
| 1899 | assertion_list_opt: // CFA |
---|
[4d51835] | 1900 | // empty |
---|
[58dd019] | 1901 | { $$ = nullptr; } |
---|
[4d51835] | 1902 | | assertion_list_opt assertion |
---|
[4e06c1e] | 1903 | { $$ = $1 != 0 ? $1->appendList( $2 ) : $2; } |
---|
[4d51835] | 1904 | ; |
---|
[b87a5ed] | 1905 | |
---|
| 1906 | assertion: // CFA |
---|
[2871210] | 1907 | '|' no_attr_identifier_or_type_name '(' type_name_list ')' |
---|
[4d51835] | 1908 | { |
---|
[4040425] | 1909 | typedefTable.openTrait( *$2 ); |
---|
| 1910 | $$ = DeclarationNode::newTraitUse( $2, $4 ); |
---|
[4d51835] | 1911 | } |
---|
[4040425] | 1912 | | '|' '{' push trait_declaration_list '}' |
---|
[4d51835] | 1913 | { $$ = $4; } |
---|
[4040425] | 1914 | | '|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list '}' '(' type_name_list ')' |
---|
[58dd019] | 1915 | { $$ = nullptr; } |
---|
[4d51835] | 1916 | ; |
---|
[b87a5ed] | 1917 | |
---|
| 1918 | type_name_list: // CFA |
---|
[4d51835] | 1919 | type_name |
---|
[d1625f8] | 1920 | { $$ = new ExpressionNode( build_typevalue( $1 ) ); } |
---|
[4d51835] | 1921 | | assignment_expression |
---|
| 1922 | | type_name_list ',' type_name |
---|
[1d4580a] | 1923 | { $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( build_typevalue( $3 ) ) ) ); } |
---|
[4d51835] | 1924 | | type_name_list ',' assignment_expression |
---|
[1d4580a] | 1925 | { $$ = (ExpressionNode *)( $1->set_last( $3 )); } |
---|
[4d51835] | 1926 | ; |
---|
[b87a5ed] | 1927 | |
---|
| 1928 | type_declaring_list: // CFA |
---|
[4040425] | 1929 | OTYPE type_declarator |
---|
[4d51835] | 1930 | { $$ = $2; } |
---|
[4040425] | 1931 | | storage_class_list OTYPE type_declarator |
---|
[4d51835] | 1932 | { $$ = $3->addQualifiers( $1 ); } |
---|
| 1933 | | type_declaring_list ',' type_declarator |
---|
| 1934 | { $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); } |
---|
| 1935 | ; |
---|
[b87a5ed] | 1936 | |
---|
| 1937 | type_declarator: // CFA |
---|
[4d51835] | 1938 | type_declarator_name assertion_list_opt |
---|
| 1939 | { $$ = $1->addAssertions( $2 ); } |
---|
| 1940 | | type_declarator_name assertion_list_opt '=' type_name |
---|
| 1941 | { $$ = $1->addAssertions( $2 )->addType( $4 ); } |
---|
| 1942 | ; |
---|
[b87a5ed] | 1943 | |
---|
| 1944 | type_declarator_name: // CFA |
---|
[2871210] | 1945 | no_attr_identifier_or_type_name |
---|
[4d51835] | 1946 | { |
---|
[de62360d] | 1947 | typedefTable.addToEnclosingScope( *$1, TypedefTable::TD ); |
---|
[4d51835] | 1948 | $$ = DeclarationNode::newTypeDecl( $1, 0 ); |
---|
| 1949 | } |
---|
[2871210] | 1950 | | no_01_identifier_or_type_name '(' push type_parameter_list pop ')' |
---|
[4d51835] | 1951 | { |
---|
[de62360d] | 1952 | typedefTable.addToEnclosingScope( *$1, TypedefTable::TG ); |
---|
[4d51835] | 1953 | $$ = DeclarationNode::newTypeDecl( $1, $4 ); |
---|
| 1954 | } |
---|
| 1955 | ; |
---|
[b87a5ed] | 1956 | |
---|
[4040425] | 1957 | trait_specifier: // CFA |
---|
| 1958 | TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}' |
---|
[4d51835] | 1959 | { |
---|
[de62360d] | 1960 | typedefTable.addToEnclosingScope( *$2, TypedefTable::ID ); |
---|
[4040425] | 1961 | $$ = DeclarationNode::newTrait( $2, $5, 0 ); |
---|
[4d51835] | 1962 | } |
---|
[4040425] | 1963 | | TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' |
---|
[4d51835] | 1964 | { |
---|
[4040425] | 1965 | typedefTable.enterTrait( *$2 ); |
---|
[4d51835] | 1966 | typedefTable.enterScope(); |
---|
| 1967 | } |
---|
[4040425] | 1968 | trait_declaration_list '}' |
---|
[4d51835] | 1969 | { |
---|
[4040425] | 1970 | typedefTable.leaveTrait(); |
---|
[de62360d] | 1971 | typedefTable.addToEnclosingScope( *$2, TypedefTable::ID ); |
---|
[4040425] | 1972 | $$ = DeclarationNode::newTrait( $2, $5, $10 ); |
---|
[4d51835] | 1973 | } |
---|
| 1974 | ; |
---|
[b87a5ed] | 1975 | |
---|
[4040425] | 1976 | trait_declaration_list: // CFA |
---|
| 1977 | trait_declaration |
---|
| 1978 | | trait_declaration_list push trait_declaration |
---|
[4d51835] | 1979 | { $$ = $1->appendList( $3 ); } |
---|
| 1980 | ; |
---|
[b87a5ed] | 1981 | |
---|
[4040425] | 1982 | trait_declaration: // CFA |
---|
| 1983 | new_trait_declaring_list pop ';' |
---|
| 1984 | | trait_declaring_list pop ';' |
---|
[4d51835] | 1985 | ; |
---|
[b87a5ed] | 1986 | |
---|
[4040425] | 1987 | new_trait_declaring_list: // CFA |
---|
[4d51835] | 1988 | new_variable_specifier |
---|
| 1989 | { |
---|
| 1990 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1991 | $$ = $1; |
---|
| 1992 | } |
---|
| 1993 | | new_function_specifier |
---|
| 1994 | { |
---|
| 1995 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 1996 | $$ = $1; |
---|
| 1997 | } |
---|
[4040425] | 1998 | | new_trait_declaring_list pop ',' push identifier_or_type_name |
---|
[4d51835] | 1999 | { |
---|
[de62360d] | 2000 | typedefTable.addToEnclosingScope2( *$5, TypedefTable::ID ); |
---|
[4d51835] | 2001 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 2002 | } |
---|
| 2003 | ; |
---|
[b87a5ed] | 2004 | |
---|
[4040425] | 2005 | trait_declaring_list: // CFA |
---|
[4d51835] | 2006 | type_specifier declarator |
---|
| 2007 | { |
---|
| 2008 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 2009 | $$ = $2->addType( $1 ); |
---|
| 2010 | } |
---|
[4040425] | 2011 | | trait_declaring_list pop ',' push declarator |
---|
[4d51835] | 2012 | { |
---|
| 2013 | typedefTable.addToEnclosingScope2( TypedefTable::ID ); |
---|
| 2014 | $$ = $1->appendList( $1->cloneBaseType( $5 ) ); |
---|
| 2015 | } |
---|
| 2016 | ; |
---|
[51b7345] | 2017 | |
---|
[c11e31c] | 2018 | //***************************** EXTERNAL DEFINITIONS ***************************** |
---|
[51b7345] | 2019 | |
---|
| 2020 | translation_unit: |
---|
[4d51835] | 2021 | // empty |
---|
| 2022 | {} // empty input file |
---|
| 2023 | | external_definition_list |
---|
[926af74] | 2024 | { parseTree = parseTree != nullptr ? parseTree->appendList( $1 ) : $1; } |
---|
[4d51835] | 2025 | ; |
---|
[51b7345] | 2026 | |
---|
| 2027 | external_definition_list: |
---|
[4d51835] | 2028 | external_definition |
---|
| 2029 | | external_definition_list push external_definition |
---|
[926af74] | 2030 | { $$ = $1 != nullptr ? $1->appendList( $3 ) : $3; } |
---|
[4d51835] | 2031 | ; |
---|
[51b7345] | 2032 | |
---|
| 2033 | external_definition_list_opt: |
---|
[4d51835] | 2034 | // empty |
---|
[58dd019] | 2035 | { $$ = nullptr; } |
---|
[4d51835] | 2036 | | external_definition_list |
---|
| 2037 | ; |
---|
[51b7345] | 2038 | |
---|
| 2039 | external_definition: |
---|
[4d51835] | 2040 | declaration |
---|
| 2041 | | external_function_definition |
---|
| 2042 | | asm_statement // GCC, global assembler statement |
---|
| 2043 | {} |
---|
| 2044 | | EXTERN STRINGliteral |
---|
| 2045 | { |
---|
[3b8e52c] | 2046 | linkageStack.push( linkage ); // handle nested extern "C"/"Cforall" |
---|
[faddbd8] | 2047 | linkage = LinkageSpec::linkageCheck( $2 ); |
---|
[4d51835] | 2048 | } |
---|
| 2049 | '{' external_definition_list_opt '}' // C++-style linkage specifier |
---|
| 2050 | { |
---|
| 2051 | linkage = linkageStack.top(); |
---|
| 2052 | linkageStack.pop(); |
---|
| 2053 | $$ = $5; |
---|
| 2054 | } |
---|
| 2055 | | EXTENSION external_definition |
---|
[8e9cbb2] | 2056 | { // mark all fields in list |
---|
[926af74] | 2057 | for ( DeclarationNode *iter = $2; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) |
---|
[8e9cbb2] | 2058 | iter->set_extension( true ); |
---|
| 2059 | $$ = $2; |
---|
| 2060 | } |
---|
[4d51835] | 2061 | ; |
---|
| 2062 | |
---|
| 2063 | external_function_definition: |
---|
| 2064 | function_definition |
---|
[de62360d] | 2065 | // These rules are a concession to the "implicit int" type_specifier because there is a significant amount of |
---|
[c6b1105] | 2066 | // legacy code with global functions missing the type-specifier for the return type, and assuming "int". |
---|
| 2067 | // Parsing is possible because function_definition does not appear in the context of an expression (nested |
---|
| 2068 | // functions preclude this concession, i.e., all nested function must have a return type). A function prototype |
---|
| 2069 | // declaration must still have a type_specifier. OBSOLESCENT (see 1) |
---|
[4d51835] | 2070 | | function_declarator compound_statement |
---|
| 2071 | { |
---|
| 2072 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2073 | typedefTable.leaveScope(); |
---|
| 2074 | $$ = $1->addFunctionBody( $2 ); |
---|
| 2075 | } |
---|
| 2076 | | old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 2077 | { |
---|
| 2078 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2079 | typedefTable.leaveScope(); |
---|
| 2080 | $$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 ); |
---|
| 2081 | } |
---|
| 2082 | ; |
---|
[51b7345] | 2083 | |
---|
| 2084 | function_definition: |
---|
[4d51835] | 2085 | new_function_declaration compound_statement // CFA |
---|
| 2086 | { |
---|
| 2087 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2088 | typedefTable.leaveScope(); |
---|
| 2089 | $$ = $1->addFunctionBody( $2 ); |
---|
| 2090 | } |
---|
| 2091 | | declaration_specifier function_declarator compound_statement |
---|
| 2092 | { |
---|
| 2093 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2094 | typedefTable.leaveScope(); |
---|
| 2095 | $$ = $2->addFunctionBody( $3 )->addType( $1 ); |
---|
| 2096 | } |
---|
| 2097 | | type_qualifier_list function_declarator compound_statement |
---|
| 2098 | { |
---|
| 2099 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2100 | typedefTable.leaveScope(); |
---|
| 2101 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 ); |
---|
| 2102 | } |
---|
| 2103 | | declaration_qualifier_list function_declarator compound_statement |
---|
| 2104 | { |
---|
| 2105 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2106 | typedefTable.leaveScope(); |
---|
| 2107 | $$ = $2->addFunctionBody( $3 )->addQualifiers( $1 ); |
---|
| 2108 | } |
---|
| 2109 | | declaration_qualifier_list type_qualifier_list function_declarator compound_statement |
---|
| 2110 | { |
---|
| 2111 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2112 | typedefTable.leaveScope(); |
---|
| 2113 | $$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 ); |
---|
| 2114 | } |
---|
| 2115 | |
---|
| 2116 | // Old-style K&R function definition, OBSOLESCENT (see 4) |
---|
| 2117 | | declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 2118 | { |
---|
| 2119 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2120 | typedefTable.leaveScope(); |
---|
| 2121 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 ); |
---|
| 2122 | } |
---|
| 2123 | | type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 2124 | { |
---|
| 2125 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2126 | typedefTable.leaveScope(); |
---|
| 2127 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 ); |
---|
| 2128 | } |
---|
| 2129 | |
---|
| 2130 | // Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4) |
---|
| 2131 | | declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 2132 | { |
---|
| 2133 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2134 | typedefTable.leaveScope(); |
---|
| 2135 | $$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 ); |
---|
| 2136 | } |
---|
| 2137 | | declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement |
---|
| 2138 | { |
---|
| 2139 | typedefTable.addToEnclosingScope( TypedefTable::ID ); |
---|
| 2140 | typedefTable.leaveScope(); |
---|
| 2141 | $$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 ); |
---|
| 2142 | } |
---|
| 2143 | ; |
---|
[51b7345] | 2144 | |
---|
| 2145 | declarator: |
---|
[4d51835] | 2146 | variable_declarator |
---|
[c6b1105] | 2147 | | variable_type_redeclarator |
---|
[4d51835] | 2148 | | function_declarator |
---|
| 2149 | ; |
---|
[51b7345] | 2150 | |
---|
| 2151 | subrange: |
---|
[4d51835] | 2152 | constant_expression '~' constant_expression // CFA, integer subrange |
---|
[d1625f8] | 2153 | { $$ = new ExpressionNode( build_range( $1, $3 ) ); } |
---|
[4d51835] | 2154 | ; |
---|
[b87a5ed] | 2155 | |
---|
| 2156 | asm_name_opt: // GCC |
---|
[4d51835] | 2157 | // empty |
---|
[58dd019] | 2158 | { $$ = nullptr; } |
---|
| 2159 | | ASM '(' string_literal ')' attribute_list_opt |
---|
| 2160 | { $$ = $3; } |
---|
[4d51835] | 2161 | ; |
---|
[b87a5ed] | 2162 | |
---|
| 2163 | attribute_list_opt: // GCC |
---|
[4d51835] | 2164 | // empty |
---|
[58dd019] | 2165 | { $$ = nullptr; } |
---|
[4d51835] | 2166 | | attribute_list |
---|
| 2167 | ; |
---|
[b87a5ed] | 2168 | |
---|
| 2169 | attribute_list: // GCC |
---|
[4d51835] | 2170 | attribute |
---|
| 2171 | | attribute_list attribute |
---|
[1db21619] | 2172 | { $$ = $2->addQualifiers( $1 ); } |
---|
[4d51835] | 2173 | ; |
---|
[b87a5ed] | 2174 | |
---|
| 2175 | attribute: // GCC |
---|
[4d51835] | 2176 | ATTRIBUTE '(' '(' attribute_parameter_list ')' ')' |
---|
[1db21619] | 2177 | // { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); } |
---|
[58dd019] | 2178 | { $$ = nullptr; } |
---|
[4d51835] | 2179 | ; |
---|
[b87a5ed] | 2180 | |
---|
| 2181 | attribute_parameter_list: // GCC |
---|
[4d51835] | 2182 | attrib |
---|
| 2183 | | attribute_parameter_list ',' attrib |
---|
| 2184 | ; |
---|
[b87a5ed] | 2185 | |
---|
| 2186 | attrib: // GCC |
---|
[4d51835] | 2187 | // empty |
---|
| 2188 | | any_word |
---|
[c1c1112] | 2189 | | any_word '(' comma_expression_opt ')' { delete $3; } // FIX ME: unimplemented |
---|
[4d51835] | 2190 | ; |
---|
[b87a5ed] | 2191 | |
---|
| 2192 | any_word: // GCC |
---|
[c1c1112] | 2193 | identifier_or_type_name { delete $1; } // FIX ME: unimplemented |
---|
| 2194 | | storage_class { delete $1; } // FIX ME: unimplemented |
---|
| 2195 | | basic_type_name { delete $1; } // FIX ME: unimplemented |
---|
| 2196 | | type_qualifier { delete $1; } // FIX ME: unimplemented |
---|
[4d51835] | 2197 | ; |
---|
[51b7345] | 2198 | |
---|
[c11e31c] | 2199 | // ============================================================================ |
---|
[de62360d] | 2200 | // The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary |
---|
| 2201 | // because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as |
---|
| 2202 | // in: |
---|
[c11e31c] | 2203 | // |
---|
[b87a5ed] | 2204 | // int (*f())[10] { ... }; |
---|
| 2205 | // ... (*f())[3] += 1; // definition mimics usage |
---|
[c11e31c] | 2206 | // |
---|
[de62360d] | 2207 | // Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of |
---|
| 2208 | // the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context. |
---|
[c11e31c] | 2209 | // ============================================================================ |
---|
| 2210 | |
---|
| 2211 | // ---------------------------------------------------------------------------- |
---|
[de62360d] | 2212 | // The set of valid declarators before a compound statement for defining a function is less than the set of declarators |
---|
| 2213 | // to define a variable or function prototype, e.g.: |
---|
[c11e31c] | 2214 | // |
---|
[b87a5ed] | 2215 | // valid declaration invalid definition |
---|
| 2216 | // ----------------- ------------------ |
---|
[4d51835] | 2217 | // int f; int f {} |
---|
| 2218 | // int *f; int *f {} |
---|
[b87a5ed] | 2219 | // int f[10]; int f[10] {} |
---|
[4d51835] | 2220 | // int (*f)(int); int (*f)(int) {} |
---|
[c11e31c] | 2221 | // |
---|
[de62360d] | 2222 | // To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence |
---|
| 2223 | // variable_declarator and function_declarator. |
---|
[c11e31c] | 2224 | // ---------------------------------------------------------------------------- |
---|
| 2225 | |
---|
[de62360d] | 2226 | // This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes |
---|
| 2227 | // declaring an array of functions versus a pointer to an array of functions. |
---|
[51b7345] | 2228 | |
---|
| 2229 | variable_declarator: |
---|
[4d51835] | 2230 | paren_identifier attribute_list_opt |
---|
[1db21619] | 2231 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2232 | | variable_ptr |
---|
| 2233 | | variable_array attribute_list_opt |
---|
[1db21619] | 2234 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2235 | | variable_function attribute_list_opt |
---|
[1db21619] | 2236 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2237 | ; |
---|
[51b7345] | 2238 | |
---|
| 2239 | paren_identifier: |
---|
[4d51835] | 2240 | identifier |
---|
| 2241 | { |
---|
[de62360d] | 2242 | typedefTable.setNextIdentifier( *$1 ); |
---|
[4d51835] | 2243 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2244 | } |
---|
| 2245 | | '(' paren_identifier ')' // redundant parenthesis |
---|
| 2246 | { $$ = $2; } |
---|
| 2247 | ; |
---|
[51b7345] | 2248 | |
---|
| 2249 | variable_ptr: |
---|
[dd51906] | 2250 | ptrref_operator variable_declarator |
---|
[4d51835] | 2251 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2252 | | ptrref_operator type_qualifier_list variable_declarator |
---|
[4d51835] | 2253 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2254 | | '(' variable_ptr ')' |
---|
| 2255 | { $$ = $2; } |
---|
| 2256 | ; |
---|
[51b7345] | 2257 | |
---|
| 2258 | variable_array: |
---|
[4d51835] | 2259 | paren_identifier array_dimension |
---|
| 2260 | { $$ = $1->addArray( $2 ); } |
---|
| 2261 | | '(' variable_ptr ')' array_dimension |
---|
| 2262 | { $$ = $2->addArray( $4 ); } |
---|
| 2263 | | '(' variable_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2264 | { $$ = $2->addArray( $4 ); } |
---|
| 2265 | | '(' variable_array ')' // redundant parenthesis |
---|
| 2266 | { $$ = $2; } |
---|
| 2267 | ; |
---|
[51b7345] | 2268 | |
---|
| 2269 | variable_function: |
---|
[4d51835] | 2270 | '(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2271 | { $$ = $2->addParamList( $6 ); } |
---|
| 2272 | | '(' variable_function ')' // redundant parenthesis |
---|
| 2273 | { $$ = $2; } |
---|
| 2274 | ; |
---|
[51b7345] | 2275 | |
---|
[c6b1105] | 2276 | // This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is |
---|
| 2277 | // no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist |
---|
| 2278 | // is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2279 | |
---|
| 2280 | function_declarator: |
---|
[4d51835] | 2281 | function_no_ptr attribute_list_opt |
---|
[1db21619] | 2282 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2283 | | function_ptr |
---|
| 2284 | | function_array attribute_list_opt |
---|
[1db21619] | 2285 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2286 | ; |
---|
[51b7345] | 2287 | |
---|
| 2288 | function_no_ptr: |
---|
[4d51835] | 2289 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2290 | { $$ = $1->addParamList( $4 ); } |
---|
| 2291 | | '(' function_ptr ')' '(' push parameter_type_list_opt pop ')' |
---|
| 2292 | { $$ = $2->addParamList( $6 ); } |
---|
| 2293 | | '(' function_no_ptr ')' // redundant parenthesis |
---|
| 2294 | { $$ = $2; } |
---|
| 2295 | ; |
---|
[51b7345] | 2296 | |
---|
| 2297 | function_ptr: |
---|
[dd51906] | 2298 | ptrref_operator function_declarator |
---|
[4d51835] | 2299 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2300 | | ptrref_operator type_qualifier_list function_declarator |
---|
[4d51835] | 2301 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2302 | | '(' function_ptr ')' |
---|
| 2303 | { $$ = $2; } |
---|
| 2304 | ; |
---|
[51b7345] | 2305 | |
---|
| 2306 | function_array: |
---|
[4d51835] | 2307 | '(' function_ptr ')' array_dimension |
---|
| 2308 | { $$ = $2->addArray( $4 ); } |
---|
| 2309 | | '(' function_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2310 | { $$ = $2->addArray( $4 ); } |
---|
| 2311 | | '(' function_array ')' // redundant parenthesis |
---|
| 2312 | { $$ = $2; } |
---|
| 2313 | ; |
---|
[51b7345] | 2314 | |
---|
[de62360d] | 2315 | // This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a typedef name |
---|
| 2316 | // (see function_declarator for additional comments). The pattern precludes returning arrays and functions versus |
---|
| 2317 | // pointers to arrays and functions. |
---|
[51b7345] | 2318 | |
---|
| 2319 | old_function_declarator: |
---|
[4d51835] | 2320 | old_function_no_ptr |
---|
| 2321 | | old_function_ptr |
---|
| 2322 | | old_function_array |
---|
| 2323 | ; |
---|
[51b7345] | 2324 | |
---|
| 2325 | old_function_no_ptr: |
---|
[4d51835] | 2326 | paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter |
---|
| 2327 | { $$ = $1->addIdList( $3 ); } |
---|
| 2328 | | '(' old_function_ptr ')' '(' identifier_list ')' |
---|
| 2329 | { $$ = $2->addIdList( $5 ); } |
---|
| 2330 | | '(' old_function_no_ptr ')' // redundant parenthesis |
---|
| 2331 | { $$ = $2; } |
---|
| 2332 | ; |
---|
[51b7345] | 2333 | |
---|
| 2334 | old_function_ptr: |
---|
[dd51906] | 2335 | ptrref_operator old_function_declarator |
---|
[4d51835] | 2336 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2337 | | ptrref_operator type_qualifier_list old_function_declarator |
---|
[4d51835] | 2338 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2339 | | '(' old_function_ptr ')' |
---|
| 2340 | { $$ = $2; } |
---|
| 2341 | ; |
---|
[51b7345] | 2342 | |
---|
| 2343 | old_function_array: |
---|
[4d51835] | 2344 | '(' old_function_ptr ')' array_dimension |
---|
| 2345 | { $$ = $2->addArray( $4 ); } |
---|
| 2346 | | '(' old_function_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2347 | { $$ = $2->addArray( $4 ); } |
---|
| 2348 | | '(' old_function_array ')' // redundant parenthesis |
---|
| 2349 | { $$ = $2; } |
---|
| 2350 | ; |
---|
[51b7345] | 2351 | |
---|
[2871210] | 2352 | // This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.: |
---|
[c11e31c] | 2353 | // |
---|
[b87a5ed] | 2354 | // typedef int foo; |
---|
| 2355 | // { |
---|
| 2356 | // int foo; // redefine typedef name in new scope |
---|
| 2357 | // } |
---|
[c11e31c] | 2358 | // |
---|
[de62360d] | 2359 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2360 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2361 | |
---|
[c6b1105] | 2362 | variable_type_redeclarator: |
---|
[2871210] | 2363 | paren_type attribute_list_opt |
---|
[1db21619] | 2364 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2365 | | type_ptr |
---|
| 2366 | | type_array attribute_list_opt |
---|
[1db21619] | 2367 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2368 | | type_function attribute_list_opt |
---|
[1db21619] | 2369 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2370 | ; |
---|
[51b7345] | 2371 | |
---|
[2871210] | 2372 | paren_type: |
---|
| 2373 | typedef |
---|
| 2374 | | '(' paren_type ')' |
---|
[4d51835] | 2375 | { $$ = $2; } |
---|
| 2376 | ; |
---|
[51b7345] | 2377 | |
---|
[2871210] | 2378 | type_ptr: |
---|
[c6b1105] | 2379 | ptrref_operator variable_type_redeclarator |
---|
[4d51835] | 2380 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[c6b1105] | 2381 | | ptrref_operator type_qualifier_list variable_type_redeclarator |
---|
[4d51835] | 2382 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
[2871210] | 2383 | | '(' type_ptr ')' |
---|
[4d51835] | 2384 | { $$ = $2; } |
---|
| 2385 | ; |
---|
[51b7345] | 2386 | |
---|
[2871210] | 2387 | type_array: |
---|
| 2388 | paren_type array_dimension |
---|
[4d51835] | 2389 | { $$ = $1->addArray( $2 ); } |
---|
[2871210] | 2390 | | '(' type_ptr ')' array_dimension |
---|
[4d51835] | 2391 | { $$ = $2->addArray( $4 ); } |
---|
[2871210] | 2392 | | '(' type_array ')' multi_array_dimension // redundant parenthesis |
---|
[4d51835] | 2393 | { $$ = $2->addArray( $4 ); } |
---|
[2871210] | 2394 | | '(' type_array ')' // redundant parenthesis |
---|
[4d51835] | 2395 | { $$ = $2; } |
---|
| 2396 | ; |
---|
[51b7345] | 2397 | |
---|
[2871210] | 2398 | type_function: |
---|
| 2399 | paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[4d51835] | 2400 | { $$ = $1->addParamList( $4 ); } |
---|
[2871210] | 2401 | | '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[4d51835] | 2402 | { $$ = $2->addParamList( $6 ); } |
---|
[2871210] | 2403 | | '(' type_function ')' // redundant parenthesis |
---|
[4d51835] | 2404 | { $$ = $2; } |
---|
| 2405 | ; |
---|
[51b7345] | 2406 | |
---|
[de62360d] | 2407 | // This pattern parses a declaration for a parameter variable or function prototype that is not redefining a typedef |
---|
| 2408 | // name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes declaring an |
---|
| 2409 | // array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to |
---|
| 2410 | // arrays and functions. |
---|
[51b7345] | 2411 | |
---|
| 2412 | identifier_parameter_declarator: |
---|
[4d51835] | 2413 | paren_identifier attribute_list_opt |
---|
[1db21619] | 2414 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2415 | | identifier_parameter_ptr |
---|
| 2416 | | identifier_parameter_array attribute_list_opt |
---|
[1db21619] | 2417 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2418 | | identifier_parameter_function attribute_list_opt |
---|
[1db21619] | 2419 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2420 | ; |
---|
[51b7345] | 2421 | |
---|
| 2422 | identifier_parameter_ptr: |
---|
[dd51906] | 2423 | ptrref_operator identifier_parameter_declarator |
---|
[4d51835] | 2424 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2425 | | ptrref_operator type_qualifier_list identifier_parameter_declarator |
---|
[4d51835] | 2426 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2427 | | '(' identifier_parameter_ptr ')' |
---|
| 2428 | { $$ = $2; } |
---|
| 2429 | ; |
---|
[51b7345] | 2430 | |
---|
| 2431 | identifier_parameter_array: |
---|
[4d51835] | 2432 | paren_identifier array_parameter_dimension |
---|
| 2433 | { $$ = $1->addArray( $2 ); } |
---|
| 2434 | | '(' identifier_parameter_ptr ')' array_dimension |
---|
| 2435 | { $$ = $2->addArray( $4 ); } |
---|
| 2436 | | '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2437 | { $$ = $2->addArray( $4 ); } |
---|
| 2438 | | '(' identifier_parameter_array ')' // redundant parenthesis |
---|
| 2439 | { $$ = $2; } |
---|
| 2440 | ; |
---|
[51b7345] | 2441 | |
---|
| 2442 | identifier_parameter_function: |
---|
[4d51835] | 2443 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2444 | { $$ = $1->addParamList( $4 ); } |
---|
| 2445 | | '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2446 | { $$ = $2->addParamList( $6 ); } |
---|
| 2447 | | '(' identifier_parameter_function ')' // redundant parenthesis |
---|
| 2448 | { $$ = $2; } |
---|
| 2449 | ; |
---|
[b87a5ed] | 2450 | |
---|
[de62360d] | 2451 | // This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name, |
---|
| 2452 | // e.g.: |
---|
[c11e31c] | 2453 | // |
---|
[b87a5ed] | 2454 | // typedef int foo; |
---|
| 2455 | // int f( int foo ); // redefine typedef name in new scope |
---|
[c11e31c] | 2456 | // |
---|
[de62360d] | 2457 | // and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern handles the |
---|
| 2458 | // special meaning of parenthesis around a typedef name: |
---|
[c11e31c] | 2459 | // |
---|
[b87a5ed] | 2460 | // ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in |
---|
| 2461 | // parentheses is taken to be an abstract declarator that specifies a function with a single parameter, |
---|
| 2462 | // not as redundant parentheses around the identifier." |
---|
[c11e31c] | 2463 | // |
---|
[c6b1105] | 2464 | // For example: |
---|
[c11e31c] | 2465 | // |
---|
[b87a5ed] | 2466 | // typedef float T; |
---|
[4d51835] | 2467 | // int f( int ( T [5] ) ); // see abstract_parameter_declarator |
---|
[b87a5ed] | 2468 | // int g( int ( T ( int ) ) ); // see abstract_parameter_declarator |
---|
| 2469 | // int f( int f1( T a[5] ) ); // see identifier_parameter_declarator |
---|
| 2470 | // int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator |
---|
[c11e31c] | 2471 | // |
---|
[de62360d] | 2472 | // In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and |
---|
| 2473 | // not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of |
---|
| 2474 | // functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and |
---|
| 2475 | // functions. |
---|
[51b7345] | 2476 | |
---|
[2871210] | 2477 | type_parameter_redeclarator: |
---|
[4d51835] | 2478 | typedef attribute_list_opt |
---|
[1db21619] | 2479 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2480 | | type_parameter_ptr |
---|
| 2481 | | type_parameter_array attribute_list_opt |
---|
[1db21619] | 2482 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2483 | | type_parameter_function attribute_list_opt |
---|
[1db21619] | 2484 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2485 | ; |
---|
[51b7345] | 2486 | |
---|
| 2487 | typedef: |
---|
[4d51835] | 2488 | TYPEDEFname |
---|
| 2489 | { |
---|
[de62360d] | 2490 | typedefTable.setNextIdentifier( *$1 ); |
---|
[4d51835] | 2491 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2492 | } |
---|
[2871210] | 2493 | | TYPEGENname |
---|
| 2494 | { |
---|
| 2495 | typedefTable.setNextIdentifier( *$1 ); |
---|
| 2496 | $$ = DeclarationNode::newName( $1 ); |
---|
| 2497 | } |
---|
[4d51835] | 2498 | ; |
---|
[51b7345] | 2499 | |
---|
[2871210] | 2500 | type_parameter_ptr: |
---|
[dd51906] | 2501 | ptrref_operator type_parameter_redeclarator |
---|
[4d51835] | 2502 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2503 | | ptrref_operator type_qualifier_list type_parameter_redeclarator |
---|
[4d51835] | 2504 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
[2871210] | 2505 | | '(' type_parameter_ptr ')' |
---|
[4d51835] | 2506 | { $$ = $2; } |
---|
| 2507 | ; |
---|
[51b7345] | 2508 | |
---|
[2871210] | 2509 | type_parameter_array: |
---|
[4d51835] | 2510 | typedef array_parameter_dimension |
---|
| 2511 | { $$ = $1->addArray( $2 ); } |
---|
[2871210] | 2512 | | '(' type_parameter_ptr ')' array_parameter_dimension |
---|
[4d51835] | 2513 | { $$ = $2->addArray( $4 ); } |
---|
| 2514 | ; |
---|
[51b7345] | 2515 | |
---|
[2871210] | 2516 | type_parameter_function: |
---|
[4d51835] | 2517 | typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2518 | { $$ = $1->addParamList( $4 ); } |
---|
[2871210] | 2519 | | '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[4d51835] | 2520 | { $$ = $2->addParamList( $6 ); } |
---|
| 2521 | ; |
---|
[b87a5ed] | 2522 | |
---|
[de62360d] | 2523 | // This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to |
---|
| 2524 | // which the type applies, e.g.: |
---|
[c11e31c] | 2525 | // |
---|
[b87a5ed] | 2526 | // sizeof( int ); |
---|
| 2527 | // sizeof( int [10] ); |
---|
[c11e31c] | 2528 | // |
---|
[de62360d] | 2529 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2530 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2531 | |
---|
| 2532 | abstract_declarator: |
---|
[4d51835] | 2533 | abstract_ptr |
---|
| 2534 | | abstract_array attribute_list_opt |
---|
[1db21619] | 2535 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2536 | | abstract_function attribute_list_opt |
---|
[1db21619] | 2537 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2538 | ; |
---|
[51b7345] | 2539 | |
---|
| 2540 | abstract_ptr: |
---|
[dd51906] | 2541 | ptrref_operator |
---|
[4d51835] | 2542 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
[dd51906] | 2543 | | ptrref_operator type_qualifier_list |
---|
[4d51835] | 2544 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
[dd51906] | 2545 | | ptrref_operator abstract_declarator |
---|
[4d51835] | 2546 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2547 | | ptrref_operator type_qualifier_list abstract_declarator |
---|
[4d51835] | 2548 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2549 | | '(' abstract_ptr ')' |
---|
| 2550 | { $$ = $2; } |
---|
| 2551 | ; |
---|
[51b7345] | 2552 | |
---|
| 2553 | abstract_array: |
---|
[4d51835] | 2554 | array_dimension |
---|
| 2555 | | '(' abstract_ptr ')' array_dimension |
---|
| 2556 | { $$ = $2->addArray( $4 ); } |
---|
| 2557 | | '(' abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2558 | { $$ = $2->addArray( $4 ); } |
---|
| 2559 | | '(' abstract_array ')' // redundant parenthesis |
---|
| 2560 | { $$ = $2; } |
---|
| 2561 | ; |
---|
[51b7345] | 2562 | |
---|
| 2563 | abstract_function: |
---|
[4d51835] | 2564 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[2298f728] | 2565 | { $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); } |
---|
[4d51835] | 2566 | | '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2567 | { $$ = $2->addParamList( $6 ); } |
---|
| 2568 | | '(' abstract_function ')' // redundant parenthesis |
---|
| 2569 | { $$ = $2; } |
---|
| 2570 | ; |
---|
[51b7345] | 2571 | |
---|
| 2572 | array_dimension: |
---|
[4d51835] | 2573 | // Only the first dimension can be empty. |
---|
[2871210] | 2574 | '[' ']' |
---|
[4d51835] | 2575 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
[2871210] | 2576 | | '[' ']' multi_array_dimension |
---|
| 2577 | { $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); } |
---|
[4d51835] | 2578 | | multi_array_dimension |
---|
| 2579 | ; |
---|
[51b7345] | 2580 | |
---|
| 2581 | multi_array_dimension: |
---|
[4d51835] | 2582 | '[' push assignment_expression pop ']' |
---|
| 2583 | { $$ = DeclarationNode::newArray( $3, 0, false ); } |
---|
| 2584 | | '[' push '*' pop ']' // C99 |
---|
| 2585 | { $$ = DeclarationNode::newVarArray( 0 ); } |
---|
| 2586 | | multi_array_dimension '[' push assignment_expression pop ']' |
---|
| 2587 | { $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); } |
---|
| 2588 | | multi_array_dimension '[' push '*' pop ']' // C99 |
---|
| 2589 | { $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); } |
---|
| 2590 | ; |
---|
[51b7345] | 2591 | |
---|
[c11e31c] | 2592 | // This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no |
---|
| 2593 | // identifier to which the type applies, e.g.: |
---|
| 2594 | // |
---|
[b87a5ed] | 2595 | // int f( int ); // abstract variable parameter; no parameter name specified |
---|
| 2596 | // int f( int (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 2597 | // |
---|
[de62360d] | 2598 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2599 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2600 | |
---|
| 2601 | abstract_parameter_declarator: |
---|
[4d51835] | 2602 | abstract_parameter_ptr |
---|
| 2603 | | abstract_parameter_array attribute_list_opt |
---|
[1db21619] | 2604 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2605 | | abstract_parameter_function attribute_list_opt |
---|
[1db21619] | 2606 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2607 | ; |
---|
[51b7345] | 2608 | |
---|
| 2609 | abstract_parameter_ptr: |
---|
[dd51906] | 2610 | ptrref_operator |
---|
[4d51835] | 2611 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
[dd51906] | 2612 | | ptrref_operator type_qualifier_list |
---|
[4d51835] | 2613 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
[dd51906] | 2614 | | ptrref_operator abstract_parameter_declarator |
---|
[4d51835] | 2615 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2616 | | ptrref_operator type_qualifier_list abstract_parameter_declarator |
---|
[4d51835] | 2617 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2618 | | '(' abstract_parameter_ptr ')' |
---|
| 2619 | { $$ = $2; } |
---|
| 2620 | ; |
---|
[51b7345] | 2621 | |
---|
| 2622 | abstract_parameter_array: |
---|
[4d51835] | 2623 | array_parameter_dimension |
---|
| 2624 | | '(' abstract_parameter_ptr ')' array_parameter_dimension |
---|
| 2625 | { $$ = $2->addArray( $4 ); } |
---|
| 2626 | | '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2627 | { $$ = $2->addArray( $4 ); } |
---|
| 2628 | | '(' abstract_parameter_array ')' // redundant parenthesis |
---|
| 2629 | { $$ = $2; } |
---|
| 2630 | ; |
---|
[51b7345] | 2631 | |
---|
| 2632 | abstract_parameter_function: |
---|
[4d51835] | 2633 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[2298f728] | 2634 | { $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); } |
---|
[4d51835] | 2635 | | '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2636 | { $$ = $2->addParamList( $6 ); } |
---|
| 2637 | | '(' abstract_parameter_function ')' // redundant parenthesis |
---|
| 2638 | { $$ = $2; } |
---|
| 2639 | ; |
---|
[51b7345] | 2640 | |
---|
| 2641 | array_parameter_dimension: |
---|
[4d51835] | 2642 | // Only the first dimension can be empty or have qualifiers. |
---|
| 2643 | array_parameter_1st_dimension |
---|
| 2644 | | array_parameter_1st_dimension multi_array_dimension |
---|
| 2645 | { $$ = $1->addArray( $2 ); } |
---|
| 2646 | | multi_array_dimension |
---|
| 2647 | ; |
---|
[51b7345] | 2648 | |
---|
[c11e31c] | 2649 | // The declaration of an array parameter has additional syntax over arrays in normal variable declarations: |
---|
| 2650 | // |
---|
[de62360d] | 2651 | // ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in |
---|
| 2652 | // a declaration of a function parameter with an array type, and then only in the outermost array type derivation." |
---|
[51b7345] | 2653 | |
---|
| 2654 | array_parameter_1st_dimension: |
---|
[2871210] | 2655 | '[' ']' |
---|
[4d51835] | 2656 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
| 2657 | // multi_array_dimension handles the '[' '*' ']' case |
---|
| 2658 | | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 2659 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 2660 | | '[' push type_qualifier_list pop ']' |
---|
| 2661 | { $$ = DeclarationNode::newArray( 0, $3, false ); } |
---|
| 2662 | // multi_array_dimension handles the '[' assignment_expression ']' case |
---|
| 2663 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 2664 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 2665 | | '[' push STATIC type_qualifier_list_opt assignment_expression pop ']' |
---|
| 2666 | { $$ = DeclarationNode::newArray( $5, $4, true ); } |
---|
| 2667 | | '[' push type_qualifier_list STATIC assignment_expression pop ']' |
---|
| 2668 | { $$ = DeclarationNode::newArray( $5, $3, true ); } |
---|
| 2669 | ; |
---|
[b87a5ed] | 2670 | |
---|
[de62360d] | 2671 | // This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type applies, |
---|
| 2672 | // e.g.: |
---|
[c11e31c] | 2673 | // |
---|
[b87a5ed] | 2674 | // sizeof( int ); // abstract variable; no identifier name specified |
---|
[c11e31c] | 2675 | // |
---|
[de62360d] | 2676 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2677 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2678 | |
---|
| 2679 | variable_abstract_declarator: |
---|
[4d51835] | 2680 | variable_abstract_ptr |
---|
| 2681 | | variable_abstract_array attribute_list_opt |
---|
[1db21619] | 2682 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2683 | | variable_abstract_function attribute_list_opt |
---|
[1db21619] | 2684 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2685 | ; |
---|
[51b7345] | 2686 | |
---|
| 2687 | variable_abstract_ptr: |
---|
[dd51906] | 2688 | ptrref_operator |
---|
[4d51835] | 2689 | { $$ = DeclarationNode::newPointer( 0 ); } |
---|
[dd51906] | 2690 | | ptrref_operator type_qualifier_list |
---|
[4d51835] | 2691 | { $$ = DeclarationNode::newPointer( $2 ); } |
---|
[dd51906] | 2692 | | ptrref_operator variable_abstract_declarator |
---|
[4d51835] | 2693 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2694 | | ptrref_operator type_qualifier_list variable_abstract_declarator |
---|
[4d51835] | 2695 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); } |
---|
| 2696 | | '(' variable_abstract_ptr ')' |
---|
| 2697 | { $$ = $2; } |
---|
| 2698 | ; |
---|
[51b7345] | 2699 | |
---|
| 2700 | variable_abstract_array: |
---|
[4d51835] | 2701 | array_dimension |
---|
| 2702 | | '(' variable_abstract_ptr ')' array_dimension |
---|
| 2703 | { $$ = $2->addArray( $4 ); } |
---|
| 2704 | | '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2705 | { $$ = $2->addArray( $4 ); } |
---|
| 2706 | | '(' variable_abstract_array ')' // redundant parenthesis |
---|
| 2707 | { $$ = $2; } |
---|
| 2708 | ; |
---|
[51b7345] | 2709 | |
---|
| 2710 | variable_abstract_function: |
---|
[4d51835] | 2711 | '(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2712 | { $$ = $2->addParamList( $6 ); } |
---|
| 2713 | | '(' variable_abstract_function ')' // redundant parenthesis |
---|
| 2714 | { $$ = $2; } |
---|
| 2715 | ; |
---|
[b87a5ed] | 2716 | |
---|
[de62360d] | 2717 | // This pattern parses a new-style declaration for a parameter variable or function prototype that is either an |
---|
| 2718 | // identifier or typedef name and allows the C99 array options, which can only appear in a parameter list. |
---|
[b87a5ed] | 2719 | |
---|
| 2720 | new_identifier_parameter_declarator_tuple: // CFA |
---|
[4d51835] | 2721 | new_identifier_parameter_declarator_no_tuple |
---|
| 2722 | | new_abstract_tuple |
---|
| 2723 | | type_qualifier_list new_abstract_tuple |
---|
| 2724 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 2725 | ; |
---|
[b87a5ed] | 2726 | |
---|
| 2727 | new_identifier_parameter_declarator_no_tuple: // CFA |
---|
[4d51835] | 2728 | new_identifier_parameter_ptr |
---|
| 2729 | | new_identifier_parameter_array |
---|
| 2730 | ; |
---|
[b87a5ed] | 2731 | |
---|
| 2732 | new_identifier_parameter_ptr: // CFA |
---|
[dd51906] | 2733 | ptrref_operator type_specifier |
---|
[4d51835] | 2734 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2735 | | type_qualifier_list ptrref_operator type_specifier |
---|
[4d51835] | 2736 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
[dd51906] | 2737 | | ptrref_operator new_abstract_function |
---|
[4d51835] | 2738 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2739 | | type_qualifier_list ptrref_operator new_abstract_function |
---|
[4d51835] | 2740 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
[dd51906] | 2741 | | ptrref_operator new_identifier_parameter_declarator_tuple |
---|
[4d51835] | 2742 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2743 | | type_qualifier_list ptrref_operator new_identifier_parameter_declarator_tuple |
---|
[4d51835] | 2744 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2745 | ; |
---|
[b87a5ed] | 2746 | |
---|
| 2747 | new_identifier_parameter_array: // CFA |
---|
[de62360d] | 2748 | // Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to |
---|
| 2749 | // shift/reduce conflict with new-style empty (void) function return type. |
---|
[2871210] | 2750 | '[' ']' type_specifier |
---|
| 2751 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[4d51835] | 2752 | | new_array_parameter_1st_dimension type_specifier |
---|
| 2753 | { $$ = $2->addNewArray( $1 ); } |
---|
[2871210] | 2754 | | '[' ']' multi_array_dimension type_specifier |
---|
| 2755 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[4d51835] | 2756 | | new_array_parameter_1st_dimension multi_array_dimension type_specifier |
---|
| 2757 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
| 2758 | | multi_array_dimension type_specifier |
---|
| 2759 | { $$ = $2->addNewArray( $1 ); } |
---|
[9059213] | 2760 | |
---|
[2871210] | 2761 | | '[' ']' new_identifier_parameter_ptr |
---|
| 2762 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[4d51835] | 2763 | | new_array_parameter_1st_dimension new_identifier_parameter_ptr |
---|
| 2764 | { $$ = $2->addNewArray( $1 ); } |
---|
[2871210] | 2765 | | '[' ']' multi_array_dimension new_identifier_parameter_ptr |
---|
| 2766 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[4d51835] | 2767 | | new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr |
---|
| 2768 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
| 2769 | | multi_array_dimension new_identifier_parameter_ptr |
---|
| 2770 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2771 | ; |
---|
[51b7345] | 2772 | |
---|
| 2773 | new_array_parameter_1st_dimension: |
---|
[4d51835] | 2774 | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 2775 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 2776 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 2777 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 2778 | | '[' push declaration_qualifier_list assignment_expression pop ']' |
---|
| 2779 | // declaration_qualifier_list must be used because of shift/reduce conflict with |
---|
| 2780 | // assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot |
---|
| 2781 | // appear in this context. |
---|
| 2782 | { $$ = DeclarationNode::newArray( $4, $3, true ); } |
---|
| 2783 | | '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']' |
---|
| 2784 | { $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); } |
---|
| 2785 | ; |
---|
[b87a5ed] | 2786 | |
---|
[de62360d] | 2787 | // This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no |
---|
| 2788 | // identifier to which the type applies, e.g.: |
---|
[c11e31c] | 2789 | // |
---|
[b87a5ed] | 2790 | // [int] f( int ); // abstract variable parameter; no parameter name specified |
---|
| 2791 | // [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 2792 | // |
---|
| 2793 | // These rules need LR(3): |
---|
| 2794 | // |
---|
[2871210] | 2795 | // new_abstract_tuple identifier_or_type_name |
---|
| 2796 | // '[' new_parameter_list ']' identifier_or_type_name '(' new_parameter_type_list_opt ')' |
---|
[c11e31c] | 2797 | // |
---|
| 2798 | // since a function return type can be syntactically identical to a tuple type: |
---|
| 2799 | // |
---|
[b87a5ed] | 2800 | // [int, int] t; |
---|
| 2801 | // [int, int] f( int ); |
---|
[c11e31c] | 2802 | // |
---|
[2871210] | 2803 | // Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce |
---|
[de62360d] | 2804 | // new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary |
---|
| 2805 | // lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and tuple declarations are |
---|
| 2806 | // duplicated when appearing with new_function_specifier. |
---|
[b87a5ed] | 2807 | |
---|
| 2808 | new_abstract_declarator_tuple: // CFA |
---|
[4d51835] | 2809 | new_abstract_tuple |
---|
| 2810 | | type_qualifier_list new_abstract_tuple |
---|
| 2811 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 2812 | | new_abstract_declarator_no_tuple |
---|
| 2813 | ; |
---|
[b87a5ed] | 2814 | |
---|
| 2815 | new_abstract_declarator_no_tuple: // CFA |
---|
[4d51835] | 2816 | new_abstract_ptr |
---|
| 2817 | | new_abstract_array |
---|
| 2818 | ; |
---|
[b87a5ed] | 2819 | |
---|
| 2820 | new_abstract_ptr: // CFA |
---|
[dd51906] | 2821 | ptrref_operator type_specifier |
---|
[4d51835] | 2822 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2823 | | type_qualifier_list ptrref_operator type_specifier |
---|
[4d51835] | 2824 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
[dd51906] | 2825 | | ptrref_operator new_abstract_function |
---|
[4d51835] | 2826 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2827 | | type_qualifier_list ptrref_operator new_abstract_function |
---|
[4d51835] | 2828 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
[dd51906] | 2829 | | ptrref_operator new_abstract_declarator_tuple |
---|
[4d51835] | 2830 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); } |
---|
[dd51906] | 2831 | | type_qualifier_list ptrref_operator new_abstract_declarator_tuple |
---|
[4d51835] | 2832 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); } |
---|
| 2833 | ; |
---|
[b87a5ed] | 2834 | |
---|
| 2835 | new_abstract_array: // CFA |
---|
[de62360d] | 2836 | // Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with |
---|
| 2837 | // empty (void) function return type. |
---|
[2871210] | 2838 | '[' ']' type_specifier |
---|
[2298f728] | 2839 | { $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[2871210] | 2840 | | '[' ']' multi_array_dimension type_specifier |
---|
[2298f728] | 2841 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[4d51835] | 2842 | | multi_array_dimension type_specifier |
---|
| 2843 | { $$ = $2->addNewArray( $1 ); } |
---|
[2871210] | 2844 | | '[' ']' new_abstract_ptr |
---|
[2298f728] | 2845 | { $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[2871210] | 2846 | | '[' ']' multi_array_dimension new_abstract_ptr |
---|
[2298f728] | 2847 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[4d51835] | 2848 | | multi_array_dimension new_abstract_ptr |
---|
| 2849 | { $$ = $2->addNewArray( $1 ); } |
---|
| 2850 | ; |
---|
[b87a5ed] | 2851 | |
---|
| 2852 | new_abstract_tuple: // CFA |
---|
[4d51835] | 2853 | '[' push new_abstract_parameter_list pop ']' |
---|
| 2854 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
| 2855 | ; |
---|
[b87a5ed] | 2856 | |
---|
| 2857 | new_abstract_function: // CFA |
---|
[1b29996] | 2858 | // '[' ']' '(' new_parameter_type_list_opt ')' |
---|
| 2859 | // { $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); } |
---|
| 2860 | new_abstract_tuple '(' push new_parameter_type_list_opt pop ')' |
---|
[2298f728] | 2861 | { $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); } |
---|
[4d51835] | 2862 | | new_function_return '(' push new_parameter_type_list_opt pop ')' |
---|
[2298f728] | 2863 | { $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); } |
---|
[4d51835] | 2864 | ; |
---|
[b87a5ed] | 2865 | |
---|
[de62360d] | 2866 | // 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in |
---|
| 2867 | // each declaration, and in the specifier-qualifier list in each structure declaration and type name." |
---|
[c11e31c] | 2868 | // |
---|
[de62360d] | 2869 | // 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of |
---|
| 2870 | // the declaration specifiers in a declaration is an obsolescent feature." |
---|
[c11e31c] | 2871 | // |
---|
| 2872 | // 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not |
---|
| 2873 | // prototype-format parameter type declarators) is an obsolescent feature." |
---|
| 2874 | // |
---|
[de62360d] | 2875 | // 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and |
---|
| 2876 | // declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature. |
---|
[51b7345] | 2877 | |
---|
[c11e31c] | 2878 | //************************* MISCELLANEOUS ******************************** |
---|
[51b7345] | 2879 | |
---|
[b87a5ed] | 2880 | comma_opt: // redundant comma |
---|
[4d51835] | 2881 | // empty |
---|
| 2882 | | ',' |
---|
| 2883 | ; |
---|
[51b7345] | 2884 | |
---|
| 2885 | assignment_opt: |
---|
[4d51835] | 2886 | // empty |
---|
[58dd019] | 2887 | { $$ = nullptr; } |
---|
[4d51835] | 2888 | | '=' assignment_expression |
---|
| 2889 | { $$ = $2; } |
---|
| 2890 | ; |
---|
[51b7345] | 2891 | |
---|
| 2892 | %% |
---|
[c11e31c] | 2893 | // ----end of grammar---- |
---|
[51b7345] | 2894 | |
---|
[0da3e2c] | 2895 | extern char *yytext; |
---|
| 2896 | |
---|
[5f2f2d7] | 2897 | void yyerror( const char * ) { |
---|
[2298f728] | 2898 | cout << "Error "; |
---|
[b87a5ed] | 2899 | if ( yyfilename ) { |
---|
[2298f728] | 2900 | cout << "in file " << yyfilename << " "; |
---|
[5f2f2d7] | 2901 | } // if |
---|
[2298f728] | 2902 | cout << "at line " << yylineno << " reading token \"" << (yytext[0] == '\0' ? "EOF" : yytext) << "\"" << endl; |
---|
[51b7345] | 2903 | } |
---|
| 2904 | |
---|
[c11e31c] | 2905 | // Local Variables: // |
---|
[b87a5ed] | 2906 | // mode: c++ // |
---|
[de62360d] | 2907 | // tab-width: 4 // |
---|
[c11e31c] | 2908 | // compile-command: "make install" // |
---|
| 2909 | // End: // |
---|