[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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[9335ecc] | 7 | // parser.yy -- |
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[974906e2] | 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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[936e9f4] | 11 | // Last Modified By : Peter A. Buhr |
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[f1da02c] | 12 | // Last Modified On : Sun Aug 4 21:48:23 2019 |
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| 13 | // Update Count : 4364 |
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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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[c0aa336] | 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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[201aeb9] | 45 | #define YYERROR_VERBOSE // more information in syntax errors |
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[51b7345] | 46 | |
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| 47 | #undef __GNUC_MINOR__ |
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| 48 | |
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| 49 | #include <cstdio> |
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| 50 | #include <stack> |
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[9ed4f94] | 51 | using namespace std; |
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| 52 | |
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[51b7345] | 53 | #include "ParseNode.h" |
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[984dce6] | 54 | #include "TypedefTable.h" |
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[1db21619] | 55 | #include "TypeData.h" |
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[51b7345] | 56 | #include "LinkageSpec.h" |
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[9ed4f94] | 57 | #include "Common/SemanticError.h" // error_str |
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[513e165] | 58 | #include "Common/utility.h" // for maybeMoveBuild, maybeBuild, CodeLo... |
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[51b7345] | 59 | |
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[cbaee0d] | 60 | extern DeclarationNode * parseTree; |
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[8b7ee09] | 61 | extern LinkageSpec::Spec linkage; |
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[0da3e2c] | 62 | extern TypedefTable typedefTable; |
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| 63 | |
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[2298f728] | 64 | stack< LinkageSpec::Spec > linkageStack; |
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[7bf7fb9] | 65 | |
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[15697ff] | 66 | bool appendStr( string & to, string & from ) { |
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| 67 | // 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that |
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[ea0c5e3] | 68 | // "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of |
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[15697ff] | 69 | // the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is |
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| 70 | // easier to let the C compiler handle this case. |
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| 71 | // |
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| 72 | // 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found |
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| 73 | // without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match, |
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| 74 | // i.e., u"a" U"b" L"c" is disallowed. |
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| 75 | |
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| 76 | if ( from[0] != '"' ) { // encoding ? |
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| 77 | if ( to[0] != '"' ) { // encoding ? |
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[ea0c5e3] | 78 | if ( to[0] != from[0] || to[1] != from[1] ) { // different encodings ? |
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[15697ff] | 79 | yyerror( "non-matching string encodings for string-literal concatenation" ); |
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| 80 | return false; // parse error, must call YYERROR in action |
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[ea0c5e3] | 81 | } else if ( from[1] == '8' ) { |
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| 82 | from.erase( 0, 1 ); // remove 2nd encoding |
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[15697ff] | 83 | } // if |
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| 84 | } else { |
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[ea0c5e3] | 85 | if ( from[1] == '8' ) { // move encoding to start |
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| 86 | to = "u8" + to; |
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| 87 | from.erase( 0, 1 ); // remove 2nd encoding |
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| 88 | } else { |
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| 89 | to = from[0] + to; |
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| 90 | } // if |
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[15697ff] | 91 | } // if |
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| 92 | from.erase( 0, 1 ); // remove 2nd encoding |
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| 93 | } // if |
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| 94 | to += " " + from; // concatenated into single string |
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| 95 | return true; |
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[7bf7fb9] | 96 | } // appendStr |
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[c0aa336] | 97 | |
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| 98 | DeclarationNode * distAttr( DeclarationNode * specifier, DeclarationNode * declList ) { |
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| 99 | // distribute declaration_specifier across all declared variables, e.g., static, const, __attribute__. |
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| 100 | DeclarationNode * cur = declList, * cl = (new DeclarationNode)->addType( specifier ); |
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[6d01d89] | 101 | for ( cur = dynamic_cast<DeclarationNode *>( cur->get_next() ); cur != nullptr; cur = dynamic_cast<DeclarationNode *>( cur->get_next() ) ) { |
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[c0aa336] | 102 | cl->cloneBaseType( cur ); |
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| 103 | } // for |
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| 104 | declList->addType( cl ); |
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| 105 | return declList; |
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| 106 | } // distAttr |
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| 107 | |
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| 108 | void distExt( DeclarationNode * declaration ) { |
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| 109 | // distribute EXTENSION across all declarations |
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| 110 | for ( DeclarationNode *iter = declaration; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) { |
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| 111 | iter->set_extension( true ); |
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| 112 | } // for |
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| 113 | } // distExt |
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[fdca7c6] | 114 | |
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[e07caa2] | 115 | void distInl( DeclarationNode * declaration ) { |
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| 116 | // distribute EXTENSION across all declarations |
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| 117 | for ( DeclarationNode *iter = declaration; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) { |
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| 118 | iter->set_inLine( true ); |
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| 119 | } // for |
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| 120 | } // distInl |
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| 121 | |
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[4c3ee8d] | 122 | void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) { |
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[284da8c] | 123 | // distribute qualifiers across all non-variable declarations in a distribution statemement |
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[4c3ee8d] | 124 | for ( DeclarationNode * iter = declaration; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) { |
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[284da8c] | 125 | // SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since |
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| 126 | // addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To |
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| 127 | // get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to |
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| 128 | // be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers. |
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| 129 | DeclarationNode * clone = qualifiers->clone(); |
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| 130 | if ( qualifiers->type ) { // forall clause ? (handles SC) |
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| 131 | if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ? |
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| 132 | swap( clone->type->forall, iter->type->aggregate.params ); |
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| 133 | iter->addQualifiers( clone ); |
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| 134 | } else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ? |
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| 135 | // Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together. |
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| 136 | DeclarationNode newnode; |
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| 137 | swap( newnode.type, iter->type->aggInst.aggregate ); |
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| 138 | swap( clone->type->forall, newnode.type->aggregate.params ); |
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| 139 | newnode.addQualifiers( clone ); |
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| 140 | swap( newnode.type, iter->type->aggInst.aggregate ); |
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| 141 | } else if ( iter->type->kind == TypeData::Function ) { // routines ? |
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| 142 | swap( clone->type->forall, iter->type->forall ); |
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| 143 | iter->addQualifiers( clone ); |
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| 144 | } // if |
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| 145 | } else { // just SC qualifiers |
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| 146 | iter->addQualifiers( clone ); |
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| 147 | } // if |
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[4c3ee8d] | 148 | } // for |
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[284da8c] | 149 | delete qualifiers; |
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| 150 | } // distQual |
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[4c3ee8d] | 151 | |
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[c38ae92] | 152 | // There is an ambiguity for inline generic-routine return-types and generic routines. |
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| 153 | // forall( otype T ) struct S { int i; } bar( T ) {} |
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| 154 | // Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding. |
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| 155 | // forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {} |
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[7fdb94e] | 156 | // Currently, the forall is associated with the routine, and the generic type has to be separately defined: |
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| 157 | // forall( otype T ) struct S { int T; }; |
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| 158 | // forall( otype W ) bar( W ) {} |
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[c38ae92] | 159 | |
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| 160 | void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) { |
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[7fdb94e] | 161 | if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition |
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[c38ae92] | 162 | funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type |
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| 163 | declSpec->type->aggregate.params = nullptr; |
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| 164 | } // if |
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| 165 | } // rebindForall |
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| 166 | |
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[dc7db63] | 167 | NameExpr * build_postfix_name( const string * name ) { |
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| 168 | NameExpr * new_name = build_varref( new string( "?`" + *name ) ); |
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| 169 | delete name; |
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| 170 | return new_name; |
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| 171 | } // build_postfix_name |
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| 172 | |
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[f7e4db27] | 173 | DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) { |
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| 174 | if ( ! fieldList ) { // field declarator ? |
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[553772b] | 175 | if ( ! ( typeSpec->type && (typeSpec->type->kind == TypeData::Aggregate || typeSpec->type->kind == TypeData::Enum) ) ) { |
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[f7e4db27] | 176 | stringstream ss; |
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| 177 | typeSpec->type->print( ss ); |
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| 178 | SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() ); |
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| 179 | return nullptr; |
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| 180 | } // if |
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| 181 | fieldList = DeclarationNode::newName( nullptr ); |
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| 182 | } // if |
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| 183 | return distAttr( typeSpec, fieldList ); // mark all fields in list |
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| 184 | } // fieldDecl |
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| 185 | |
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[cc22003] | 186 | ForCtrl * forCtrl( ExpressionNode * type, string * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) { |
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[1dda8de] | 187 | ConstantExpr * constant = dynamic_cast<ConstantExpr *>(type->expr.get()); |
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[0982a05] | 188 | if ( constant && (constant->get_constant()->get_value() == "0" || constant->get_constant()->get_value() == "1") ) { |
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| 189 | type = new ExpressionNode( new CastExpr( maybeMoveBuild< Expression >(type), new BasicType( Type::Qualifiers(), BasicType::SignedInt ) ) ); |
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| 190 | } // if |
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[f271bdd] | 191 | return new ForCtrl( |
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[5753b33] | 192 | distAttr( DeclarationNode::newTypeof( type, true ), DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) ) ), |
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[2d2df9f] | 193 | // NULL comp/inc => leave blank |
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| 194 | comp ? new ExpressionNode( build_binary_val( compop, new ExpressionNode( build_varref( new string( *index ) ) ), comp ) ) : 0, |
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| 195 | inc ? new ExpressionNode( build_binary_val( compop == OperKinds::LThan || compop == OperKinds::LEThan ? // choose += or -= for upto/downto |
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| 196 | OperKinds::PlusAssn : OperKinds::MinusAssn, new ExpressionNode( build_varref( new string( *index ) ) ), inc ) ) : 0 ); |
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[f271bdd] | 197 | } // forCtrl |
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| 198 | |
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[f1aeede] | 199 | ForCtrl * forCtrl( ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) { |
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[1dda8de] | 200 | if ( NameExpr * identifier = dynamic_cast<NameExpr *>(index->expr.get()) ) { |
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[f1aeede] | 201 | return forCtrl( type, new string( identifier->name ), start, compop, comp, inc ); |
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[1dda8de] | 202 | } else if ( CommaExpr * commaExpr = dynamic_cast<CommaExpr *>(index->expr.get()) ) { |
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[6d01d89] | 203 | if ( NameExpr * identifier = dynamic_cast<NameExpr *>(commaExpr->arg1 ) ) { |
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| 204 | return forCtrl( type, new string( identifier->name ), start, compop, comp, inc ); |
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| 205 | } else { |
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| 206 | SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); return nullptr; |
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| 207 | } // if |
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[f1aeede] | 208 | } else { |
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| 209 | SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); return nullptr; |
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| 210 | } // if |
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[f271bdd] | 211 | } // forCtrl |
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| 212 | |
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| 213 | |
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[fc20514] | 214 | bool forall = false, yyy = false; // aggregate have one or more forall qualifiers ? |
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[d48e529] | 215 | |
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[201aeb9] | 216 | // https://www.gnu.org/software/bison/manual/bison.html#Location-Type |
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| 217 | #define YYLLOC_DEFAULT(Cur, Rhs, N) \ |
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| 218 | if ( N ) { \ |
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| 219 | (Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \ |
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| 220 | (Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \ |
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| 221 | (Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \ |
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| 222 | (Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \ |
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| 223 | (Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \ |
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| 224 | } else { \ |
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| 225 | (Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \ |
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| 226 | (Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \ |
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| 227 | (Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \ |
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| 228 | } |
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[51b7345] | 229 | %} |
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| 230 | |
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[15697ff] | 231 | %define parse.error verbose |
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| 232 | |
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[201aeb9] | 233 | // Types declaration for productions |
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[0982a05] | 234 | %union { |
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[a67b60e] | 235 | Token tok; |
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| 236 | ParseNode * pn; |
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| 237 | ExpressionNode * en; |
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| 238 | DeclarationNode * decl; |
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| 239 | DeclarationNode::Aggregate aggKey; |
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| 240 | DeclarationNode::TypeClass tclass; |
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| 241 | StatementNode * sn; |
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[135b431] | 242 | WaitForStmt * wfs; |
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[e612146c] | 243 | Expression * constant; |
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[f271bdd] | 244 | IfCtrl * ifctl; |
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| 245 | ForCtrl * fctl; |
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[cc22003] | 246 | enum OperKinds compop; |
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[a67b60e] | 247 | LabelNode * label; |
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| 248 | InitializerNode * in; |
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| 249 | OperKinds op; |
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| 250 | std::string * str; |
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| 251 | bool flag; |
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[307a732] | 252 | CatchStmt::Kind catch_kind; |
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[d807ca28] | 253 | GenericExpr * genexpr; |
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[a67b60e] | 254 | } |
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| 255 | |
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[c11e31c] | 256 | //************************* TERMINAL TOKENS ******************************** |
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[51b7345] | 257 | |
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[c11e31c] | 258 | // keywords |
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[51b7345] | 259 | %token TYPEDEF |
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[a7c90d4] | 260 | %token EXTERN STATIC AUTO REGISTER |
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| 261 | %token THREADLOCAL // C11 |
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| 262 | %token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1) |
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| 263 | %token NORETURN // C11 |
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[51b7345] | 264 | %token CONST VOLATILE |
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[b87a5ed] | 265 | %token RESTRICT // C99 |
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[a7c90d4] | 266 | %token ATOMIC // C11 |
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[1528a2c] | 267 | %token FORALL MUTEX VIRTUAL COERCE // CFA |
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[72457b6] | 268 | %token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED |
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[b87a5ed] | 269 | %token BOOL COMPLEX IMAGINARY // C99 |
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[f1da02c] | 270 | %token INT128 UINT128 uuFLOAT80 uuFLOAT128 // GCC |
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[e15853c] | 271 | %token uFLOAT16 uFLOAT32 uFLOAT32X uFLOAT64 uFLOAT64X uFLOAT128 // GCC |
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[72457b6] | 272 | %token ZERO_T ONE_T // CFA |
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| 273 | %token VALIST // GCC |
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[f673c13c] | 274 | %token AUTO_TYPE // GCC |
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[ee27df2] | 275 | %token TYPEOF BASETYPEOF LABEL // GCC |
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[51b7345] | 276 | %token ENUM STRUCT UNION |
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[c27fb59] | 277 | %token EXCEPTION // CFA |
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[553772b] | 278 | %token GENERATOR COROUTINE MONITOR THREAD // CFA |
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[a7c90d4] | 279 | %token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA |
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[5721a6d] | 280 | %token SIZEOF OFFSETOF |
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[c786e1d] | 281 | // %token SUSPEND RESUME // CFA |
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[b87a5ed] | 282 | %token ATTRIBUTE EXTENSION // GCC |
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[51b7345] | 283 | %token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN |
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[114014c] | 284 | %token CHOOSE DISABLE ENABLE FALLTHRU FALLTHROUGH TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT WITH WHEN WAITFOR // CFA |
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[b87a5ed] | 285 | %token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1) |
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[a7c90d4] | 286 | %token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11 |
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[51b7345] | 287 | |
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[c11e31c] | 288 | // names and constants: lexer differentiates between identifier and typedef names |
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[b87a5ed] | 289 | %token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname |
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[5b2edbc] | 290 | %token<tok> TIMEOUT WOR |
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[1b29996] | 291 | %token<tok> INTEGERconstant CHARACTERconstant STRINGliteral |
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[61fc4f6] | 292 | %token<tok> DIRECTIVE |
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[1b29996] | 293 | // Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and |
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| 294 | // 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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| 295 | // converted into the tuple index (.)(1). e.g., 3.x |
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[930f69e] | 296 | %token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant |
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[51b7345] | 297 | |
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[c11e31c] | 298 | // multi-character operators |
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[b87a5ed] | 299 | %token ARROW // -> |
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| 300 | %token ICR DECR // ++ -- |
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| 301 | %token LS RS // << >> |
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| 302 | %token LE GE EQ NE // <= >= == != |
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| 303 | %token ANDAND OROR // && || |
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| 304 | %token ELLIPSIS // ... |
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| 305 | |
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[e5f2a67] | 306 | %token EXPassign MULTassign DIVassign MODassign // \= *= /= %= |
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[b87a5ed] | 307 | %token PLUSassign MINUSassign // += -= |
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| 308 | %token LSassign RSassign // <<= >>= |
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| 309 | %token ANDassign ERassign ORassign // &= ^= |= |
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[51b7345] | 310 | |
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[d69f4bb4] | 311 | %token ErangeUpEq ErangeDown ErangeDownEq // ~= -~ -~= |
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[e7aed49] | 312 | %token ATassign // @= |
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[097e2b0] | 313 | |
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[033ff37] | 314 | %type<tok> identifier |
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| 315 | %type<tok> identifier_or_type_name attr_name |
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[5b2edbc] | 316 | %type<tok> quasi_keyword |
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[ab57786] | 317 | %type<constant> string_literal |
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| 318 | %type<str> string_literal_list |
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[51b7345] | 319 | |
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[c11e31c] | 320 | // expressions |
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[d1625f8] | 321 | %type<en> constant |
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[b87a5ed] | 322 | %type<en> tuple tuple_expression_list |
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[9706554] | 323 | %type<op> ptrref_operator unary_operator assignment_operator |
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[b87a5ed] | 324 | %type<en> primary_expression postfix_expression unary_expression |
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[994d080] | 325 | %type<en> cast_expression exponential_expression multiplicative_expression additive_expression |
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| 326 | %type<en> shift_expression relational_expression equality_expression |
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| 327 | %type<en> AND_expression exclusive_OR_expression inclusive_OR_expression |
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| 328 | %type<en> logical_AND_expression logical_OR_expression |
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| 329 | %type<en> conditional_expression constant_expression assignment_expression assignment_expression_opt |
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[b87a5ed] | 330 | %type<en> comma_expression comma_expression_opt |
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[994d080] | 331 | %type<en> argument_expression_list argument_expression default_initialize_opt |
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[936e9f4] | 332 | %type<ifctl> if_control_expression |
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[6d01d89] | 333 | %type<fctl> for_control_expression for_control_expression_list |
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[cc22003] | 334 | %type<compop> inclexcl |
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[51b7345] | 335 | %type<en> subrange |
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[c0aa336] | 336 | %type<decl> asm_name_opt |
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[67d4e37] | 337 | %type<en> asm_operands_opt asm_operands_list asm_operand |
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[7f5566b] | 338 | %type<label> label_list |
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[d1625f8] | 339 | %type<en> asm_clobbers_list_opt |
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[7f5566b] | 340 | %type<flag> asm_volatile_opt |
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[cbce272] | 341 | %type<en> handler_predicate_opt |
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[67d4e37] | 342 | %type<genexpr> generic_association generic_assoc_list |
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[51b7345] | 343 | |
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[c11e31c] | 344 | // statements |
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[9bd6105] | 345 | %type<sn> statement labeled_statement compound_statement |
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| 346 | %type<sn> statement_decl statement_decl_list statement_list_nodecl |
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[3d26610] | 347 | %type<sn> selection_statement if_statement |
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[6a276a0] | 348 | %type<sn> switch_clause_list_opt switch_clause_list |
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[9bd6105] | 349 | %type<en> case_value |
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| 350 | %type<sn> case_clause case_value_list case_label case_label_list |
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[8b47e50] | 351 | %type<sn> iteration_statement jump_statement |
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[9bd6105] | 352 | %type<sn> expression_statement asm_statement |
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[c453ac4] | 353 | %type<sn> with_statement |
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| 354 | %type<en> with_clause_opt |
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[51d6d6a] | 355 | %type<sn> exception_statement handler_clause finally_clause |
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| 356 | %type<catch_kind> handler_key |
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[b6b3c42] | 357 | %type<sn> mutex_statement |
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[9bd6105] | 358 | %type<en> when_clause when_clause_opt waitfor timeout |
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[135b431] | 359 | %type<sn> waitfor_statement |
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[51d6d6a] | 360 | %type<wfs> waitfor_clause |
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[51b7345] | 361 | |
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[c11e31c] | 362 | // declarations |
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[c0aa336] | 363 | %type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension |
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| 364 | %type<decl> abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension |
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| 365 | %type<decl> abstract_parameter_declaration |
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[51b7345] | 366 | |
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| 367 | %type<aggKey> aggregate_key |
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[d0ffed1] | 368 | %type<decl> aggregate_type aggregate_type_nobody |
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[51b7345] | 369 | |
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[9997fee] | 370 | %type<decl> assertion assertion_list assertion_list_opt |
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[51b7345] | 371 | |
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| 372 | %type<en> bit_subrange_size_opt bit_subrange_size |
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| 373 | |
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[84d58c5] | 374 | %type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type |
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[51b7345] | 375 | |
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[4040425] | 376 | %type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier |
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[51b7345] | 377 | |
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| 378 | %type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list |
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[d0ffed1] | 379 | %type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list |
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[51b7345] | 380 | |
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[d0ffed1] | 381 | %type<decl> elaborated_type elaborated_type_nobody |
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[51b7345] | 382 | |
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[d0ffed1] | 383 | %type<decl> enumerator_list enum_type enum_type_nobody |
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[51b7345] | 384 | %type<en> enumerator_value_opt |
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| 385 | |
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[3d56d15b] | 386 | %type<decl> external_definition external_definition_list external_definition_list_opt |
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| 387 | |
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| 388 | %type<decl> exception_declaration |
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[51b7345] | 389 | |
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[e07caa2] | 390 | %type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract |
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[679e644] | 391 | %type<en> field field_name_list field_name fraction_constants_opt |
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[51b7345] | 392 | |
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[4d51835] | 393 | %type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr |
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[51b7345] | 394 | |
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[d3bc0ad] | 395 | %type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function |
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| 396 | %type<decl> identifier_list |
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[51b7345] | 397 | |
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[c0aa336] | 398 | %type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple |
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| 399 | %type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list |
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| 400 | %type<decl> cfa_abstract_ptr cfa_abstract_tuple |
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[51b7345] | 401 | |
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[c0aa336] | 402 | %type<decl> cfa_array_parameter_1st_dimension |
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[51b7345] | 403 | |
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[679e644] | 404 | %type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list |
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[c0aa336] | 405 | %type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier |
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[51b7345] | 406 | |
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[c0aa336] | 407 | %type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple |
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| 408 | %type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr |
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[51b7345] | 409 | |
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[40de461] | 410 | %type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_ellipsis_list_opt |
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[51b7345] | 411 | |
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[c0aa336] | 412 | %type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier |
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[51b7345] | 413 | |
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[b9be000b] | 414 | %type<decl> c_declaration static_assert |
---|
[c0aa336] | 415 | %type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array |
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[35718a9] | 416 | %type<decl> KR_parameter_list KR_parameter_list_opt |
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[51b7345] | 417 | |
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[2a8427c6] | 418 | %type<decl> parameter_declaration parameter_list parameter_type_list_opt |
---|
[51b7345] | 419 | |
---|
[2871210] | 420 | %type<decl> paren_identifier paren_type |
---|
[51b7345] | 421 | |
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[0da3e2c] | 422 | %type<decl> storage_class storage_class_list |
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[51b7345] | 423 | |
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[d0ffed1] | 424 | %type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody |
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[51b7345] | 425 | |
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| 426 | %type<tclass> type_class |
---|
| 427 | %type<decl> type_declarator type_declarator_name type_declaring_list |
---|
| 428 | |
---|
[84d58c5] | 429 | %type<decl> type_declaration_specifier type_type_specifier type_name typegen_name |
---|
| 430 | %type<decl> typedef typedef_declaration typedef_expression |
---|
[c0aa336] | 431 | |
---|
| 432 | %type<decl> variable_type_redeclarator type_ptr type_array type_function |
---|
| 433 | |
---|
| 434 | %type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function |
---|
[51b7345] | 435 | |
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[84d58c5] | 436 | %type<decl> type type_no_function |
---|
| 437 | %type<decl> type_parameter type_parameter_list type_initializer_opt |
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[51b7345] | 438 | |
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[284da8c] | 439 | %type<en> type_parameters_opt type_list |
---|
[51b7345] | 440 | |
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[a16a7ec] | 441 | %type<decl> type_qualifier type_qualifier_name forall type_qualifier_list_opt type_qualifier_list |
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[d3bc0ad] | 442 | %type<decl> type_specifier type_specifier_nobody |
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[51b7345] | 443 | |
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[c0aa336] | 444 | %type<decl> variable_declarator variable_ptr variable_array variable_function |
---|
| 445 | %type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function |
---|
[51b7345] | 446 | |
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[44a81853] | 447 | %type<decl> attribute_list_opt attribute_list attribute_name_list attribute attribute_name |
---|
[1db21619] | 448 | |
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[c11e31c] | 449 | // initializers |
---|
[7fdb94e] | 450 | %type<in> initializer initializer_list_opt initializer_opt |
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[51b7345] | 451 | |
---|
[c11e31c] | 452 | // designators |
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[51b7345] | 453 | %type<en> designator designator_list designation |
---|
| 454 | |
---|
| 455 | |
---|
[65d6de4] | 456 | // Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous: |
---|
| 457 | // .---------. matches IF '(' comma_expression ')' statement . (reduce) |
---|
| 458 | // if ( C ) S1 else S2 |
---|
| 459 | // `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */ |
---|
[5b2edbc] | 460 | // Similar issues exit with the waitfor statement. |
---|
[51b7345] | 461 | |
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[1efa1e1] | 462 | // Order of these lines matters (low-to-high precedence). THEN is left associative over WOR/TIMEOUT/ELSE, WOR is left |
---|
| 463 | // associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE. |
---|
[5b2edbc] | 464 | %precedence THEN // rule precedence for IF/WAITFOR statement |
---|
| 465 | %precedence WOR // token precedence for start of WOR in WAITFOR statement |
---|
| 466 | %precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement |
---|
| 467 | %precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement |
---|
[51b7345] | 468 | |
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[65d6de4] | 469 | // Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous: |
---|
| 470 | // forall( otype T ) struct Foo { T v; }; |
---|
| 471 | // .-----. matches pointer to function returning a generic (which is impossible without a type) |
---|
| 472 | // Foo ( *fp )( int ); |
---|
| 473 | // `---' matches start of TYPEGENname '(' |
---|
[fc20514] | 474 | // must be: |
---|
[a16a7ec] | 475 | // Foo( int ) ( *fp )( int ); |
---|
[fc20514] | 476 | // The same problem occurs here: |
---|
| 477 | // forall( otype T ) struct Foo { T v; } ( *fp )( int ); |
---|
| 478 | // must be: |
---|
| 479 | // forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int ); |
---|
[65d6de4] | 480 | |
---|
| 481 | // Order of these lines matters (low-to-high precedence). |
---|
| 482 | %precedence TYPEGENname |
---|
[284da8c] | 483 | %precedence '}' |
---|
[65d6de4] | 484 | %precedence '(' |
---|
| 485 | |
---|
[c786e1d] | 486 | // %precedence RESUME |
---|
| 487 | // %precedence '{' |
---|
| 488 | // %precedence ')' |
---|
| 489 | |
---|
[f38e7d7] | 490 | %locations // support location tracking for error messages |
---|
[930f69e] | 491 | |
---|
[b87a5ed] | 492 | %start translation_unit // parse-tree root |
---|
[51b7345] | 493 | |
---|
| 494 | %% |
---|
[c11e31c] | 495 | //************************* Namespace Management ******************************** |
---|
| 496 | |
---|
[3d26610] | 497 | // The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname", |
---|
| 498 | // which are lexically identical. |
---|
[c11e31c] | 499 | // |
---|
[3d26610] | 500 | // typedef int foo; // identifier foo must now be scanned as TYPEDEFname |
---|
| 501 | // foo f; // to allow it to appear in this context |
---|
[c11e31c] | 502 | // |
---|
[3d26610] | 503 | // While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship |
---|
| 504 | // between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the |
---|
| 505 | // scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type |
---|
| 506 | // generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which |
---|
| 507 | // must be distinguished by the lexical scanner. |
---|
[c11e31c] | 508 | // |
---|
[3d26610] | 509 | // Since the scanner cannot distinguish among the different classes of identifiers without some context information, |
---|
| 510 | // there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named |
---|
| 511 | // scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For |
---|
| 512 | // each context that introduces a name scope, a new level is created in the type table and that level is popped on |
---|
| 513 | // exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope. |
---|
| 514 | // This requires distinguishing between type names that are local to the current declaration scope and those that |
---|
| 515 | // persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations). |
---|
[c11e31c] | 516 | // |
---|
[3d26610] | 517 | // The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in |
---|
| 518 | // the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push |
---|
| 519 | // around the list separator. |
---|
| 520 | // |
---|
| 521 | // int f( forall(T) T (*f1) T , forall( S ) S (*f2)( S ) ); |
---|
| 522 | // push pop push pop |
---|
[51b7345] | 523 | |
---|
| 524 | push: |
---|
[ab57786] | 525 | { typedefTable.enterScope(); } |
---|
[4d51835] | 526 | ; |
---|
[51b7345] | 527 | |
---|
| 528 | pop: |
---|
[ab57786] | 529 | { typedefTable.leaveScope(); } |
---|
[4d51835] | 530 | ; |
---|
[51b7345] | 531 | |
---|
[c11e31c] | 532 | //************************* CONSTANTS ******************************** |
---|
[51b7345] | 533 | |
---|
| 534 | constant: |
---|
[de62360d] | 535 | // ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant". |
---|
[ab57786] | 536 | INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); } |
---|
[930f69e] | 537 | | FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
---|
| 538 | | FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
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[ab57786] | 539 | | FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); } |
---|
| 540 | | CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); } |
---|
[4d51835] | 541 | ; |
---|
[51b7345] | 542 | |
---|
[5b2edbc] | 543 | quasi_keyword: // CFA |
---|
| 544 | TIMEOUT |
---|
| 545 | | WOR |
---|
| 546 | ; |
---|
| 547 | |
---|
[033ff37] | 548 | identifier: |
---|
[4d51835] | 549 | IDENTIFIER |
---|
[5b2edbc] | 550 | | quasi_keyword |
---|
[679e644] | 551 | | '@' // CFA |
---|
| 552 | { Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; } |
---|
[4d51835] | 553 | ; |
---|
[51b7345] | 554 | |
---|
[ab57786] | 555 | string_literal: |
---|
| 556 | string_literal_list { $$ = build_constantStr( *$1 ); } |
---|
| 557 | ; |
---|
| 558 | |
---|
[b87a5ed] | 559 | string_literal_list: // juxtaposed strings are concatenated |
---|
[ab57786] | 560 | STRINGliteral { $$ = $1; } // conversion from tok to str |
---|
[7bf7fb9] | 561 | | string_literal_list STRINGliteral |
---|
| 562 | { |
---|
[15697ff] | 563 | if ( ! appendStr( *$1, *$2 ) ) YYERROR; // append 2nd juxtaposed string to 1st |
---|
[7bf7fb9] | 564 | delete $2; // allocated by lexer |
---|
[ab57786] | 565 | $$ = $1; // conversion from tok to str |
---|
[7bf7fb9] | 566 | } |
---|
[4d51835] | 567 | ; |
---|
[51b7345] | 568 | |
---|
[c11e31c] | 569 | //************************* EXPRESSIONS ******************************** |
---|
[51b7345] | 570 | |
---|
| 571 | primary_expression: |
---|
[4d51835] | 572 | IDENTIFIER // typedef name cannot be used as a variable name |
---|
[d1625f8] | 573 | { $$ = new ExpressionNode( build_varref( $1 ) ); } |
---|
[5b2edbc] | 574 | | quasi_keyword |
---|
| 575 | { $$ = new ExpressionNode( build_varref( $1 ) ); } |
---|
[1b29996] | 576 | | tuple |
---|
[4d51835] | 577 | | '(' comma_expression ')' |
---|
| 578 | { $$ = $2; } |
---|
| 579 | | '(' compound_statement ')' // GCC, lambda expression |
---|
[513e165] | 580 | { $$ = new ExpressionNode( new StmtExpr( dynamic_cast< CompoundStmt * >(maybeMoveBuild< Statement >($2) ) ) ); } |
---|
[7e419e7] | 581 | | constant '`' IDENTIFIER // CFA, postfix call |
---|
[dc7db63] | 582 | { $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), $1 ) ); } |
---|
[7e419e7] | 583 | | string_literal '`' IDENTIFIER // CFA, postfix call |
---|
[dc7db63] | 584 | { $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), new ExpressionNode( $1 ) ) ); } |
---|
[7e419e7] | 585 | | IDENTIFIER '`' IDENTIFIER // CFA, postfix call |
---|
[dc7db63] | 586 | { $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), new ExpressionNode( build_varref( $1 ) ) ) ); } |
---|
[7e419e7] | 587 | | tuple '`' IDENTIFIER // CFA, postfix call |
---|
[dc7db63] | 588 | { $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), $1 ) ); } |
---|
[7e419e7] | 589 | | '(' comma_expression ')' '`' IDENTIFIER // CFA, postfix call |
---|
[dc7db63] | 590 | { $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $5 ) ), $2 ) ); } |
---|
[033ff37] | 591 | | type_name '.' identifier // CFA, nested type |
---|
[203c667] | 592 | { SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; } |
---|
[679e644] | 593 | | type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector |
---|
[203c667] | 594 | { SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; } |
---|
[24c3b67] | 595 | | GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11 |
---|
[d807ca28] | 596 | { |
---|
| 597 | // add the missing control expression to the GenericExpr and return it |
---|
| 598 | $5->control = maybeMoveBuild<Expression>( $3 ); |
---|
| 599 | $$ = new ExpressionNode( $5 ); |
---|
| 600 | } |
---|
[c786e1d] | 601 | // | RESUME '(' comma_expression ')' |
---|
| 602 | // { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; } |
---|
| 603 | // | RESUME '(' comma_expression ')' compound_statement |
---|
| 604 | // { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; } |
---|
[24c3b67] | 605 | ; |
---|
| 606 | |
---|
| 607 | generic_assoc_list: // C11 |
---|
[d807ca28] | 608 | generic_association |
---|
[24c3b67] | 609 | | generic_assoc_list ',' generic_association |
---|
[d807ca28] | 610 | { |
---|
| 611 | // steal the association node from the singleton and delete the wrapper |
---|
| 612 | $1->associations.splice($1->associations.end(), $3->associations); |
---|
| 613 | delete $3; |
---|
| 614 | $$ = $1; |
---|
| 615 | } |
---|
[24c3b67] | 616 | ; |
---|
| 617 | |
---|
| 618 | generic_association: // C11 |
---|
| 619 | type_no_function ':' assignment_expression |
---|
[d807ca28] | 620 | { |
---|
| 621 | // create a GenericExpr wrapper with one association pair |
---|
| 622 | $$ = new GenericExpr( nullptr, { { maybeMoveBuildType($1), maybeMoveBuild<Expression>($3) } } ); |
---|
| 623 | } |
---|
[24c3b67] | 624 | | DEFAULT ':' assignment_expression |
---|
[d807ca28] | 625 | { $$ = new GenericExpr( nullptr, { { maybeMoveBuild<Expression>($3) } } ); } |
---|
[4d51835] | 626 | ; |
---|
[51b7345] | 627 | |
---|
| 628 | postfix_expression: |
---|
[4d51835] | 629 | primary_expression |
---|
[7fdb94e] | 630 | | postfix_expression '[' assignment_expression ']' |
---|
[c6b1105] | 631 | // CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a |
---|
[de62360d] | 632 | // matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be |
---|
| 633 | // little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is |
---|
| 634 | // equivalent to the old x[i,j]. |
---|
[7fdb94e] | 635 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $3 ) ); } |
---|
[bd3d9e4] | 636 | | postfix_expression '{' argument_expression_list '}' // CFA, constructor call |
---|
| 637 | { |
---|
| 638 | Token fn; |
---|
| 639 | fn.str = new std::string( "?{}" ); // location undefined - use location of '{'? |
---|
| 640 | $$ = new ExpressionNode( new ConstructorExpr( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) ) ); |
---|
| 641 | } |
---|
[4d51835] | 642 | | postfix_expression '(' argument_expression_list ')' |
---|
[d1625f8] | 643 | { $$ = new ExpressionNode( build_func( $1, $3 ) ); } |
---|
[033ff37] | 644 | | postfix_expression '.' identifier |
---|
[d1625f8] | 645 | { $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); } |
---|
[df22130] | 646 | | postfix_expression '.' INTEGERconstant // CFA, tuple index |
---|
| 647 | { $$ = new ExpressionNode( build_fieldSel( $1, build_constantInteger( *$3 ) ) ); } |
---|
[930f69e] | 648 | | postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index |
---|
| 649 | { $$ = new ExpressionNode( build_fieldSel( $1, build_field_name_FLOATING_FRACTIONconstant( *$2 ) ) ); } |
---|
[679e644] | 650 | | postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector |
---|
[7fdb94e] | 651 | { $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); } |
---|
[033ff37] | 652 | | postfix_expression ARROW identifier |
---|
[ee27df2] | 653 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_varref( $3 ) ) ); } |
---|
[861799c] | 654 | | postfix_expression ARROW INTEGERconstant // CFA, tuple index |
---|
| 655 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_constantInteger( *$3 ) ) ); } |
---|
[679e644] | 656 | | postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector |
---|
[7fdb94e] | 657 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); } |
---|
[4d51835] | 658 | | postfix_expression ICR |
---|
[d1625f8] | 659 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); } |
---|
[4d51835] | 660 | | postfix_expression DECR |
---|
[d1625f8] | 661 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); } |
---|
[7fdb94e] | 662 | | '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal |
---|
[d1625f8] | 663 | { $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); } |
---|
[7fdb94e] | 664 | | '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal |
---|
[f810e09] | 665 | { $$ = new ExpressionNode( build_compoundLiteral( $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); } |
---|
[ecb27a7] | 666 | | '^' primary_expression '{' argument_expression_list '}' // CFA |
---|
[097e2b0] | 667 | { |
---|
[9706554] | 668 | Token fn; |
---|
[ecb27a7] | 669 | fn.str = new string( "^?{}" ); // location undefined |
---|
| 670 | $$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) ); |
---|
[097e2b0] | 671 | } |
---|
[4d51835] | 672 | ; |
---|
[51b7345] | 673 | |
---|
| 674 | argument_expression_list: |
---|
[757ffed] | 675 | // empty |
---|
| 676 | { $$ = nullptr; } |
---|
| 677 | | argument_expression |
---|
[4d51835] | 678 | | argument_expression_list ',' argument_expression |
---|
[1d4580a] | 679 | { $$ = (ExpressionNode *)( $1->set_last( $3 )); } |
---|
[4d51835] | 680 | ; |
---|
[51b7345] | 681 | |
---|
| 682 | argument_expression: |
---|
[757ffed] | 683 | '@' // CFA, default parameter |
---|
[679e644] | 684 | { SemanticError( yylloc, "Default parameter for argument is currently unimplemented." ); $$ = nullptr; } |
---|
| 685 | // { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); } |
---|
[4d51835] | 686 | | assignment_expression |
---|
| 687 | ; |
---|
[b87a5ed] | 688 | |
---|
[679e644] | 689 | field_name_list: // CFA, tuple field selector |
---|
[4d51835] | 690 | field |
---|
[679e644] | 691 | | field_name_list ',' field { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
---|
[4d51835] | 692 | ; |
---|
[b87a5ed] | 693 | |
---|
| 694 | field: // CFA, tuple field selector |
---|
[faddbd8] | 695 | field_name |
---|
[930f69e] | 696 | | FLOATING_DECIMALconstant field |
---|
| 697 | { $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), maybeMoveBuild<Expression>( $2 ) ) ); } |
---|
[679e644] | 698 | | FLOATING_DECIMALconstant '[' field_name_list ']' |
---|
[7fdb94e] | 699 | { $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), build_tuple( $3 ) ) ); } |
---|
[faddbd8] | 700 | | field_name '.' field |
---|
[bf32bb8] | 701 | { $$ = new ExpressionNode( build_fieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); } |
---|
[679e644] | 702 | | field_name '.' '[' field_name_list ']' |
---|
[7fdb94e] | 703 | { $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); } |
---|
[faddbd8] | 704 | | field_name ARROW field |
---|
[bf32bb8] | 705 | { $$ = new ExpressionNode( build_pfieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); } |
---|
[679e644] | 706 | | field_name ARROW '[' field_name_list ']' |
---|
[7fdb94e] | 707 | { $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); } |
---|
[4d51835] | 708 | ; |
---|
[51b7345] | 709 | |
---|
[faddbd8] | 710 | field_name: |
---|
[df22130] | 711 | INTEGERconstant fraction_constants_opt |
---|
[8780e30] | 712 | { $$ = new ExpressionNode( build_field_name_fraction_constants( build_constantInteger( *$1 ), $2 ) ); } |
---|
[df22130] | 713 | | FLOATINGconstant fraction_constants_opt |
---|
[8780e30] | 714 | { $$ = new ExpressionNode( build_field_name_fraction_constants( build_field_name_FLOATINGconstant( *$1 ), $2 ) ); } |
---|
[033ff37] | 715 | | identifier fraction_constants_opt |
---|
[4cb935e] | 716 | { |
---|
[84d58c5] | 717 | $$ = new ExpressionNode( build_field_name_fraction_constants( build_varref( $1 ), $2 ) ); |
---|
| 718 | } |
---|
[1b29996] | 719 | ; |
---|
| 720 | |
---|
[df22130] | 721 | fraction_constants_opt: |
---|
[1b29996] | 722 | // empty |
---|
[8780e30] | 723 | { $$ = nullptr; } |
---|
[df22130] | 724 | | fraction_constants_opt FLOATING_FRACTIONconstant |
---|
[8780e30] | 725 | { |
---|
[930f69e] | 726 | Expression * constant = build_field_name_FLOATING_FRACTIONconstant( *$2 ); |
---|
[8780e30] | 727 | $$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( $1, constant ) ) : new ExpressionNode( constant ); |
---|
| 728 | } |
---|
[faddbd8] | 729 | ; |
---|
| 730 | |
---|
[51b7345] | 731 | unary_expression: |
---|
[4d51835] | 732 | postfix_expression |
---|
[c6b1105] | 733 | // first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires |
---|
| 734 | // semantics checks, e.g., ++3, 3--, *3, &&3 |
---|
[51b1202] | 735 | | constant |
---|
[ab57786] | 736 | | string_literal |
---|
[d1625f8] | 737 | { $$ = new ExpressionNode( $1 ); } |
---|
[4d51835] | 738 | | EXTENSION cast_expression // GCC |
---|
[e04ef3a] | 739 | { $$ = $2->set_extension( true ); } |
---|
[c6b1105] | 740 | // '*' ('&') is separated from unary_operator because of shift/reduce conflict in: |
---|
| 741 | // { * X; } // dereference X |
---|
| 742 | // { * int X; } // CFA declaration of pointer to int |
---|
[51e076e] | 743 | | ptrref_operator cast_expression // CFA |
---|
[9706554] | 744 | { |
---|
| 745 | switch ( $1 ) { |
---|
[d9e2280] | 746 | case OperKinds::AddressOf: |
---|
[db70fe4] | 747 | $$ = new ExpressionNode( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) ); |
---|
[9706554] | 748 | break; |
---|
[d9e2280] | 749 | case OperKinds::PointTo: |
---|
[d1625f8] | 750 | $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); |
---|
[9706554] | 751 | break; |
---|
[5809461] | 752 | case OperKinds::And: |
---|
[db70fe4] | 753 | $$ = new ExpressionNode( new AddressExpr( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) ) ); |
---|
[5809461] | 754 | break; |
---|
[9706554] | 755 | default: |
---|
| 756 | assert( false ); |
---|
| 757 | } |
---|
| 758 | } |
---|
[4d51835] | 759 | | unary_operator cast_expression |
---|
[d1625f8] | 760 | { $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); } |
---|
[dd51906] | 761 | | ICR unary_expression |
---|
[d1625f8] | 762 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); } |
---|
[dd51906] | 763 | | DECR unary_expression |
---|
[d1625f8] | 764 | { $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); } |
---|
[4d51835] | 765 | | SIZEOF unary_expression |
---|
[db70fe4] | 766 | { $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuild< Expression >( $2 ) ) ); } |
---|
[84d58c5] | 767 | | SIZEOF '(' type_no_function ')' |
---|
[db70fe4] | 768 | { $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuildType( $3 ) ) ); } |
---|
[d1625f8] | 769 | | ALIGNOF unary_expression // GCC, variable alignment |
---|
[db70fe4] | 770 | { $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuild< Expression >( $2 ) ) ); } |
---|
[a2e0687] | 771 | | ALIGNOF '(' type_no_function ')' // GCC, type alignment |
---|
[db70fe4] | 772 | { $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuildType( $3 ) ) ); } |
---|
[033ff37] | 773 | | OFFSETOF '(' type_no_function ',' identifier ')' |
---|
[d1625f8] | 774 | { $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); } |
---|
[4d51835] | 775 | ; |
---|
[51b7345] | 776 | |
---|
[dd51906] | 777 | ptrref_operator: |
---|
[d9e2280] | 778 | '*' { $$ = OperKinds::PointTo; } |
---|
| 779 | | '&' { $$ = OperKinds::AddressOf; } |
---|
[c6b1105] | 780 | // GCC, address of label must be handled by semantic check for ref,ref,label |
---|
[9f07232] | 781 | | ANDAND { $$ = OperKinds::And; } |
---|
[dd51906] | 782 | ; |
---|
| 783 | |
---|
[51b7345] | 784 | unary_operator: |
---|
[d9e2280] | 785 | '+' { $$ = OperKinds::UnPlus; } |
---|
| 786 | | '-' { $$ = OperKinds::UnMinus; } |
---|
| 787 | | '!' { $$ = OperKinds::Neg; } |
---|
| 788 | | '~' { $$ = OperKinds::BitNeg; } |
---|
[4d51835] | 789 | ; |
---|
[51b7345] | 790 | |
---|
| 791 | cast_expression: |
---|
[4d51835] | 792 | unary_expression |
---|
[84d58c5] | 793 | | '(' type_no_function ')' cast_expression |
---|
[d1625f8] | 794 | { $$ = new ExpressionNode( build_cast( $2, $4 ) ); } |
---|
[1528a2c] | 795 | // keyword cast cannot be grouped because of reduction in aggregate_key |
---|
[553772b] | 796 | | '(' GENERATOR '&' ')' cast_expression // CFA |
---|
| 797 | { $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Coroutine, $5 ) ); } |
---|
[fae90d5] | 798 | | '(' COROUTINE '&' ')' cast_expression // CFA |
---|
[9a705dc8] | 799 | { $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Coroutine, $5 ) ); } |
---|
[fae90d5] | 800 | | '(' THREAD '&' ')' cast_expression // CFA |
---|
[9a705dc8] | 801 | { $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Thread, $5 ) ); } |
---|
[fae90d5] | 802 | | '(' MONITOR '&' ')' cast_expression // CFA |
---|
[9a705dc8] | 803 | { $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Monitor, $5 ) ); } |
---|
[72457b6] | 804 | // VIRTUAL cannot be opt because of look ahead issues |
---|
[fae90d5] | 805 | | '(' VIRTUAL ')' cast_expression // CFA |
---|
[513e165] | 806 | { $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $4 ), maybeMoveBuildType( nullptr ) ) ); } |
---|
[fae90d5] | 807 | | '(' VIRTUAL type_no_function ')' cast_expression // CFA |
---|
[513e165] | 808 | { $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $5 ), maybeMoveBuildType( $3 ) ) ); } |
---|
[1528a2c] | 809 | | '(' RETURN type_no_function ')' cast_expression // CFA |
---|
| 810 | { SemanticError( yylloc, "Return cast is currently unimplemented." ); $$ = nullptr; } |
---|
| 811 | | '(' COERCE type_no_function ')' cast_expression // CFA |
---|
| 812 | { SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; } |
---|
| 813 | | '(' qualifier_cast_list ')' cast_expression // CFA |
---|
| 814 | { SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; } |
---|
[84d58c5] | 815 | // | '(' type_no_function ')' tuple |
---|
[1b29996] | 816 | // { $$ = new ExpressionNode( build_cast( $2, $4 ) ); } |
---|
[4d51835] | 817 | ; |
---|
[51b7345] | 818 | |
---|
[1528a2c] | 819 | qualifier_cast_list: |
---|
| 820 | cast_modifier type_qualifier_name |
---|
| 821 | | cast_modifier MUTEX |
---|
| 822 | | qualifier_cast_list cast_modifier type_qualifier_name |
---|
| 823 | | qualifier_cast_list cast_modifier MUTEX |
---|
| 824 | ; |
---|
| 825 | |
---|
| 826 | cast_modifier: |
---|
| 827 | '-' |
---|
| 828 | | '+' |
---|
| 829 | ; |
---|
| 830 | |
---|
[994d080] | 831 | exponential_expression: |
---|
[4d51835] | 832 | cast_expression |
---|
[994d080] | 833 | | exponential_expression '\\' cast_expression |
---|
[e5f2a67] | 834 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Exp, $1, $3 ) ); } |
---|
[994d080] | 835 | ; |
---|
| 836 | |
---|
| 837 | multiplicative_expression: |
---|
| 838 | exponential_expression |
---|
| 839 | | multiplicative_expression '*' exponential_expression |
---|
[d1625f8] | 840 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); } |
---|
[994d080] | 841 | | multiplicative_expression '/' exponential_expression |
---|
[d1625f8] | 842 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); } |
---|
[994d080] | 843 | | multiplicative_expression '%' exponential_expression |
---|
[d1625f8] | 844 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); } |
---|
[4d51835] | 845 | ; |
---|
[51b7345] | 846 | |
---|
| 847 | additive_expression: |
---|
[4d51835] | 848 | multiplicative_expression |
---|
| 849 | | additive_expression '+' multiplicative_expression |
---|
[d1625f8] | 850 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); } |
---|
[4d51835] | 851 | | additive_expression '-' multiplicative_expression |
---|
[d1625f8] | 852 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); } |
---|
[4d51835] | 853 | ; |
---|
[51b7345] | 854 | |
---|
| 855 | shift_expression: |
---|
[4d51835] | 856 | additive_expression |
---|
| 857 | | shift_expression LS additive_expression |
---|
[d1625f8] | 858 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); } |
---|
[4d51835] | 859 | | shift_expression RS additive_expression |
---|
[d1625f8] | 860 | { $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); } |
---|
[4d51835] | 861 | ; |
---|
[51b7345] | 862 | |
---|
| 863 | relational_expression: |
---|
[4d51835] | 864 | shift_expression |
---|
| 865 | | relational_expression '<' shift_expression |
---|
[d1625f8] | 866 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); } |
---|
[4d51835] | 867 | | relational_expression '>' shift_expression |
---|
[d1625f8] | 868 | { $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); } |
---|
[4d51835] | 869 | | relational_expression LE shift_expression |
---|
[d1625f8] | 870 | { $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); } |
---|
[4d51835] | 871 | | relational_expression GE shift_expression |
---|
[d1625f8] | 872 | { $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); } |
---|
[4d51835] | 873 | ; |
---|
[51b7345] | 874 | |
---|
| 875 | equality_expression: |
---|
[4d51835] | 876 | relational_expression |
---|
| 877 | | equality_expression EQ relational_expression |
---|
[d1625f8] | 878 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); } |
---|
[4d51835] | 879 | | equality_expression NE relational_expression |
---|
[d1625f8] | 880 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); } |
---|
[4d51835] | 881 | ; |
---|
[51b7345] | 882 | |
---|
| 883 | AND_expression: |
---|
[4d51835] | 884 | equality_expression |
---|
| 885 | | AND_expression '&' equality_expression |
---|
[d1625f8] | 886 | { $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); } |
---|
[4d51835] | 887 | ; |
---|
[51b7345] | 888 | |
---|
| 889 | exclusive_OR_expression: |
---|
[4d51835] | 890 | AND_expression |
---|
| 891 | | exclusive_OR_expression '^' AND_expression |
---|
[d1625f8] | 892 | { $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); } |
---|
[4d51835] | 893 | ; |
---|
[51b7345] | 894 | |
---|
| 895 | inclusive_OR_expression: |
---|
[4d51835] | 896 | exclusive_OR_expression |
---|
| 897 | | inclusive_OR_expression '|' exclusive_OR_expression |
---|
[d1625f8] | 898 | { $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); } |
---|
[4d51835] | 899 | ; |
---|
[51b7345] | 900 | |
---|
| 901 | logical_AND_expression: |
---|
[4d51835] | 902 | inclusive_OR_expression |
---|
| 903 | | logical_AND_expression ANDAND inclusive_OR_expression |
---|
[d1625f8] | 904 | { $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); } |
---|
[4d51835] | 905 | ; |
---|
[51b7345] | 906 | |
---|
| 907 | logical_OR_expression: |
---|
[4d51835] | 908 | logical_AND_expression |
---|
| 909 | | logical_OR_expression OROR logical_AND_expression |
---|
[d1625f8] | 910 | { $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); } |
---|
[4d51835] | 911 | ; |
---|
[51b7345] | 912 | |
---|
| 913 | conditional_expression: |
---|
[4d51835] | 914 | logical_OR_expression |
---|
| 915 | | logical_OR_expression '?' comma_expression ':' conditional_expression |
---|
[d1625f8] | 916 | { $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); } |
---|
[fae90d5] | 917 | // FIX ME: computes $1 twice |
---|
[4d51835] | 918 | | logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand |
---|
[d1625f8] | 919 | { $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); } |
---|
[4d51835] | 920 | ; |
---|
[51b7345] | 921 | |
---|
| 922 | constant_expression: |
---|
[4d51835] | 923 | conditional_expression |
---|
| 924 | ; |
---|
[51b7345] | 925 | |
---|
| 926 | assignment_expression: |
---|
[4d51835] | 927 | // CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples |
---|
| 928 | conditional_expression |
---|
| 929 | | unary_expression assignment_operator assignment_expression |
---|
[cda7889] | 930 | { $$ = new ExpressionNode( build_binary_val( $2, $1, $3 ) ); } |
---|
[7fdb94e] | 931 | | unary_expression '=' '{' initializer_list_opt comma_opt '}' |
---|
[fae90d5] | 932 | { SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; } |
---|
[4d51835] | 933 | ; |
---|
[51b7345] | 934 | |
---|
| 935 | assignment_expression_opt: |
---|
[4d51835] | 936 | // empty |
---|
[d1625f8] | 937 | { $$ = nullptr; } |
---|
[4d51835] | 938 | | assignment_expression |
---|
| 939 | ; |
---|
[b87a5ed] | 940 | |
---|
[9706554] | 941 | assignment_operator: |
---|
[d9e2280] | 942 | '=' { $$ = OperKinds::Assign; } |
---|
[a839867] | 943 | | ATassign { $$ = OperKinds::AtAssn; } |
---|
[e5f2a67] | 944 | | EXPassign { $$ = OperKinds::ExpAssn; } |
---|
[d9e2280] | 945 | | MULTassign { $$ = OperKinds::MulAssn; } |
---|
| 946 | | DIVassign { $$ = OperKinds::DivAssn; } |
---|
| 947 | | MODassign { $$ = OperKinds::ModAssn; } |
---|
| 948 | | PLUSassign { $$ = OperKinds::PlusAssn; } |
---|
| 949 | | MINUSassign { $$ = OperKinds::MinusAssn; } |
---|
| 950 | | LSassign { $$ = OperKinds::LSAssn; } |
---|
| 951 | | RSassign { $$ = OperKinds::RSAssn; } |
---|
| 952 | | ANDassign { $$ = OperKinds::AndAssn; } |
---|
| 953 | | ERassign { $$ = OperKinds::ERAssn; } |
---|
| 954 | | ORassign { $$ = OperKinds::OrAssn; } |
---|
[413ad05] | 955 | ; |
---|
[9706554] | 956 | |
---|
[b87a5ed] | 957 | tuple: // CFA, tuple |
---|
[de62360d] | 958 | // CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with |
---|
[c0aa336] | 959 | // comma_expression in cfa_identifier_parameter_array and cfa_abstract_array |
---|
[1b29996] | 960 | // '[' ']' |
---|
| 961 | // { $$ = new ExpressionNode( build_tuple() ); } |
---|
[13e8427] | 962 | // | '[' push assignment_expression pop ']' |
---|
[1b29996] | 963 | // { $$ = new ExpressionNode( build_tuple( $3 ) ); } |
---|
[17238fd] | 964 | '[' ',' tuple_expression_list ']' |
---|
| 965 | { $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $3 ) ) ); } |
---|
| 966 | | '[' push assignment_expression pop ',' tuple_expression_list ']' |
---|
| 967 | { $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $6 ) ) ); } |
---|
[4d51835] | 968 | ; |
---|
[51b7345] | 969 | |
---|
| 970 | tuple_expression_list: |
---|
[4d51835] | 971 | assignment_expression_opt |
---|
| 972 | | tuple_expression_list ',' assignment_expression_opt |
---|
[1d4580a] | 973 | { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
---|
[4d51835] | 974 | ; |
---|
[51b7345] | 975 | |
---|
| 976 | comma_expression: |
---|
[4d51835] | 977 | assignment_expression |
---|
[9706554] | 978 | | comma_expression ',' assignment_expression |
---|
[513e165] | 979 | { $$ = new ExpressionNode( new CommaExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); } |
---|
[4d51835] | 980 | ; |
---|
[51b7345] | 981 | |
---|
| 982 | comma_expression_opt: |
---|
[4d51835] | 983 | // empty |
---|
[58dd019] | 984 | { $$ = nullptr; } |
---|
[4d51835] | 985 | | comma_expression |
---|
| 986 | ; |
---|
[51b7345] | 987 | |
---|
[c11e31c] | 988 | //*************************** STATEMENTS ******************************* |
---|
[51b7345] | 989 | |
---|
| 990 | statement: |
---|
[4d51835] | 991 | labeled_statement |
---|
| 992 | | compound_statement |
---|
[c0a33d2] | 993 | | expression_statement |
---|
[4d51835] | 994 | | selection_statement |
---|
| 995 | | iteration_statement |
---|
| 996 | | jump_statement |
---|
[8b47e50] | 997 | | with_statement |
---|
[b6b3c42] | 998 | | mutex_statement |
---|
[5b2edbc] | 999 | | waitfor_statement |
---|
[4d51835] | 1000 | | exception_statement |
---|
[2a8427c6] | 1001 | | enable_disable_statement |
---|
[fae90d5] | 1002 | { SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; } |
---|
[4d51835] | 1003 | | asm_statement |
---|
[61fc4f6] | 1004 | | DIRECTIVE |
---|
[6d539f83] | 1005 | { $$ = new StatementNode( build_directive( $1 ) ); } |
---|
[b9be000b] | 1006 | ; |
---|
[51b7345] | 1007 | |
---|
| 1008 | labeled_statement: |
---|
[033ff37] | 1009 | // labels cannot be identifiers 0 or 1 |
---|
[44a81853] | 1010 | identifier_or_type_name ':' attribute_list_opt statement |
---|
[6d01d89] | 1011 | { $$ = $4->add_label( $1, $3 ); } |
---|
[4d51835] | 1012 | ; |
---|
[51b7345] | 1013 | |
---|
| 1014 | compound_statement: |
---|
[4d51835] | 1015 | '{' '}' |
---|
[e82aa9df] | 1016 | { $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); } |
---|
[35718a9] | 1017 | | '{' push |
---|
[51b1202] | 1018 | local_label_declaration_opt // GCC, local labels |
---|
[9bd6105] | 1019 | statement_decl_list // C99, intermix declarations and statements |
---|
[c0aa336] | 1020 | pop '}' |
---|
[35718a9] | 1021 | { $$ = new StatementNode( build_compound( $4 ) ); } |
---|
[4d51835] | 1022 | ; |
---|
[b87a5ed] | 1023 | |
---|
[9bd6105] | 1024 | statement_decl_list: // C99 |
---|
| 1025 | statement_decl |
---|
[35718a9] | 1026 | | statement_decl_list statement_decl |
---|
[6d01d89] | 1027 | { assert( $1 ); $1->set_last( $2 ); $$ = $1; } |
---|
[4d51835] | 1028 | ; |
---|
[51b7345] | 1029 | |
---|
[9bd6105] | 1030 | statement_decl: |
---|
[4d51835] | 1031 | declaration // CFA, new & old style declarations |
---|
[e82aa9df] | 1032 | { $$ = new StatementNode( $1 ); } |
---|
[4d51835] | 1033 | | EXTENSION declaration // GCC |
---|
[6d01d89] | 1034 | { distExt( $2 ); $$ = new StatementNode( $2 ); } |
---|
[4d51835] | 1035 | | function_definition |
---|
[e82aa9df] | 1036 | { $$ = new StatementNode( $1 ); } |
---|
[c0aa336] | 1037 | | EXTENSION function_definition // GCC |
---|
[6d01d89] | 1038 | { distExt( $2 ); $$ = new StatementNode( $2 ); } |
---|
[35718a9] | 1039 | | statement |
---|
[4d51835] | 1040 | ; |
---|
[51b7345] | 1041 | |
---|
[9bd6105] | 1042 | statement_list_nodecl: |
---|
[4d51835] | 1043 | statement |
---|
[9bd6105] | 1044 | | statement_list_nodecl statement |
---|
[6d01d89] | 1045 | { assert( $1 ); $1->set_last( $2 ); $$ = $1; } |
---|
[4d51835] | 1046 | ; |
---|
[51b7345] | 1047 | |
---|
| 1048 | expression_statement: |
---|
[4d51835] | 1049 | comma_expression_opt ';' |
---|
[e82aa9df] | 1050 | { $$ = new StatementNode( build_expr( $1 ) ); } |
---|
[4d51835] | 1051 | ; |
---|
[51b7345] | 1052 | |
---|
| 1053 | selection_statement: |
---|
[3d26610] | 1054 | // pop causes a S/R conflict without separating the IF statement into a non-terminal even after resolving |
---|
| 1055 | // the inherent S/R conflict with THEN/ELSE. |
---|
| 1056 | push if_statement pop |
---|
| 1057 | { $$ = $2; } |
---|
[4cc585b] | 1058 | | SWITCH '(' comma_expression ')' case_clause |
---|
[6a276a0] | 1059 | { $$ = new StatementNode( build_switch( true, $3, $5 ) ); } |
---|
[35718a9] | 1060 | | SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA |
---|
[4e06c1e] | 1061 | { |
---|
[6a276a0] | 1062 | StatementNode *sw = new StatementNode( build_switch( true, $3, $8 ) ); |
---|
[4e06c1e] | 1063 | // The semantics of the declaration list is changed to include associated initialization, which is performed |
---|
| 1064 | // *before* the transfer to the appropriate case clause by hoisting the declarations into a compound |
---|
| 1065 | // statement around the switch. Statements after the initial declaration list can never be executed, and |
---|
[8688ce1] | 1066 | // therefore, are removed from the grammar even though C allows it. The change also applies to choose |
---|
| 1067 | // statement. |
---|
[a7741435] | 1068 | $$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw; |
---|
[4e06c1e] | 1069 | } |
---|
[4d51835] | 1070 | | CHOOSE '(' comma_expression ')' case_clause // CFA |
---|
[6a276a0] | 1071 | { $$ = new StatementNode( build_switch( false, $3, $5 ) ); } |
---|
[35718a9] | 1072 | | CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA |
---|
[4e06c1e] | 1073 | { |
---|
[6a276a0] | 1074 | StatementNode *sw = new StatementNode( build_switch( false, $3, $8 ) ); |
---|
[a7741435] | 1075 | $$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw; |
---|
[4e06c1e] | 1076 | } |
---|
[4d51835] | 1077 | ; |
---|
[b87a5ed] | 1078 | |
---|
[3d26610] | 1079 | if_statement: |
---|
| 1080 | IF '(' if_control_expression ')' statement %prec THEN |
---|
| 1081 | // explicitly deal with the shift/reduce conflict on if/else |
---|
| 1082 | { $$ = new StatementNode( build_if( $3, $5, nullptr ) ); } |
---|
| 1083 | | IF '(' if_control_expression ')' statement ELSE statement |
---|
| 1084 | { $$ = new StatementNode( build_if( $3, $5, $7 ) ); } |
---|
| 1085 | ; |
---|
| 1086 | |
---|
[936e9f4] | 1087 | if_control_expression: |
---|
[35718a9] | 1088 | comma_expression |
---|
[f271bdd] | 1089 | { $$ = new IfCtrl( nullptr, $1 ); } |
---|
[35718a9] | 1090 | | c_declaration // no semi-colon |
---|
[f271bdd] | 1091 | { $$ = new IfCtrl( $1, nullptr ); } |
---|
[35718a9] | 1092 | | cfa_declaration // no semi-colon |
---|
[f271bdd] | 1093 | { $$ = new IfCtrl( $1, nullptr ); } |
---|
[6d49ea3] | 1094 | | declaration comma_expression // semi-colon separated |
---|
[f271bdd] | 1095 | { $$ = new IfCtrl( $1, $2 ); } |
---|
[936e9f4] | 1096 | ; |
---|
| 1097 | |
---|
[de62360d] | 1098 | // CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case |
---|
| 1099 | // clause allows a list of values and subranges. |
---|
[b87a5ed] | 1100 | |
---|
| 1101 | case_value: // CFA |
---|
[4d51835] | 1102 | constant_expression { $$ = $1; } |
---|
| 1103 | | constant_expression ELLIPSIS constant_expression // GCC, subrange |
---|
[db70fe4] | 1104 | { $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); } |
---|
[4d51835] | 1105 | | subrange // CFA, subrange |
---|
| 1106 | ; |
---|
[b87a5ed] | 1107 | |
---|
| 1108 | case_value_list: // CFA |
---|
[e82aa9df] | 1109 | case_value { $$ = new StatementNode( build_case( $1 ) ); } |
---|
[064e3ff] | 1110 | // convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5" |
---|
[e82aa9df] | 1111 | | case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); } |
---|
[4d51835] | 1112 | ; |
---|
[b87a5ed] | 1113 | |
---|
| 1114 | case_label: // CFA |
---|
[8688ce1] | 1115 | CASE case_value_list ':' { $$ = $2; } |
---|
[e82aa9df] | 1116 | | DEFAULT ':' { $$ = new StatementNode( build_default() ); } |
---|
[4d51835] | 1117 | // A semantic check is required to ensure only one default clause per switch/choose statement. |
---|
| 1118 | ; |
---|
[b87a5ed] | 1119 | |
---|
[6a276a0] | 1120 | //label_list_opt: |
---|
| 1121 | // // empty |
---|
| 1122 | // | identifier_or_type_name ':' |
---|
| 1123 | // | label_list_opt identifier_or_type_name ':' |
---|
| 1124 | // ; |
---|
| 1125 | |
---|
[b87a5ed] | 1126 | case_label_list: // CFA |
---|
[4d51835] | 1127 | case_label |
---|
[1d4580a] | 1128 | | case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); } |
---|
[4d51835] | 1129 | ; |
---|
[b87a5ed] | 1130 | |
---|
| 1131 | case_clause: // CFA |
---|
[e82aa9df] | 1132 | case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); } |
---|
[4d51835] | 1133 | ; |
---|
[b87a5ed] | 1134 | |
---|
| 1135 | switch_clause_list_opt: // CFA |
---|
[4d51835] | 1136 | // empty |
---|
[58dd019] | 1137 | { $$ = nullptr; } |
---|
[4d51835] | 1138 | | switch_clause_list |
---|
| 1139 | ; |
---|
[b87a5ed] | 1140 | |
---|
| 1141 | switch_clause_list: // CFA |
---|
[9bd6105] | 1142 | case_label_list statement_list_nodecl |
---|
[e82aa9df] | 1143 | { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); } |
---|
[9bd6105] | 1144 | | switch_clause_list case_label_list statement_list_nodecl |
---|
[e82aa9df] | 1145 | { $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); } |
---|
[4d51835] | 1146 | ; |
---|
[b87a5ed] | 1147 | |
---|
[51b7345] | 1148 | iteration_statement: |
---|
[401e61f] | 1149 | WHILE '(' push if_control_expression ')' statement pop |
---|
| 1150 | { $$ = new StatementNode( build_while( $4, $6 ) ); } |
---|
[f271bdd] | 1151 | | WHILE '(' ')' statement // CFA => while ( 1 ) |
---|
| 1152 | { $$ = new StatementNode( build_while( new IfCtrl( nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ), $4 ) ); } |
---|
[4d51835] | 1153 | | DO statement WHILE '(' comma_expression ')' ';' |
---|
[401e61f] | 1154 | { $$ = new StatementNode( build_do_while( $5, $2 ) ); } |
---|
[f271bdd] | 1155 | | DO statement WHILE '(' ')' ';' // CFA => do while( 1 ) |
---|
| 1156 | { $$ = new StatementNode( build_do_while( new ExpressionNode( build_constantInteger( *new string( "1" ) ) ), $2 ) ); } |
---|
[6d01d89] | 1157 | | FOR '(' push for_control_expression_list ')' statement pop |
---|
[e82aa9df] | 1158 | { $$ = new StatementNode( build_for( $4, $6 ) ); } |
---|
[f1aeede] | 1159 | | FOR '(' ')' statement // CFA => for ( ;; ) |
---|
| 1160 | { $$ = new StatementNode( build_for( new ForCtrl( (ExpressionNode * )nullptr, (ExpressionNode * )nullptr, (ExpressionNode * )nullptr ), $4 ) ); } |
---|
[4d51835] | 1161 | ; |
---|
[51b7345] | 1162 | |
---|
[6d01d89] | 1163 | for_control_expression_list: |
---|
| 1164 | for_control_expression |
---|
| 1165 | | for_control_expression_list ':' for_control_expression |
---|
[67d4e37] | 1166 | // ForCtrl + ForCtrl: |
---|
| 1167 | // init + init => multiple declaration statements that are hoisted |
---|
| 1168 | // condition + condition => (expression) && (expression) |
---|
| 1169 | // change + change => (expression), (expression) |
---|
| 1170 | { |
---|
| 1171 | $1->init->set_last( $3->init ); |
---|
| 1172 | if ( $1->condition ) { |
---|
| 1173 | if ( $3->condition ) { |
---|
| 1174 | $1->condition->expr.reset( new LogicalExpr( $1->condition->expr.release(), $3->condition->expr.release(), true ) ); |
---|
| 1175 | } // if |
---|
| 1176 | } else $1->condition = $3->condition; |
---|
| 1177 | if ( $1->change ) { |
---|
| 1178 | if ( $3->change ) { |
---|
| 1179 | $1->change->expr.reset( new CommaExpr( $1->change->expr.release(), $3->change->expr.release() ) ); |
---|
| 1180 | } // if |
---|
| 1181 | } else $1->change = $3->change; |
---|
| 1182 | $$ = $1; |
---|
| 1183 | } |
---|
[6d01d89] | 1184 | ; |
---|
| 1185 | |
---|
[51b7345] | 1186 | for_control_expression: |
---|
[6d01d89] | 1187 | ';' comma_expression_opt ';' comma_expression_opt |
---|
| 1188 | { $$ = new ForCtrl( (ExpressionNode * )nullptr, $2, $4 ); } |
---|
| 1189 | | comma_expression ';' comma_expression_opt ';' comma_expression_opt |
---|
| 1190 | { $$ = new ForCtrl( $1, $3, $5 ); } |
---|
| 1191 | | declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';' |
---|
| 1192 | { $$ = new ForCtrl( $1, $2, $4 ); } |
---|
[67d4e37] | 1193 | |
---|
[6d01d89] | 1194 | | comma_expression // CFA |
---|
[f1aeede] | 1195 | { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), |
---|
| 1196 | OperKinds::LThan, $1->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
[6d01d89] | 1197 | | comma_expression inclexcl comma_expression // CFA |
---|
[ee27df2] | 1198 | { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
[6d01d89] | 1199 | | comma_expression inclexcl comma_expression '~' comma_expression // CFA |
---|
[cc22003] | 1200 | { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, $5 ); } |
---|
[f1aeede] | 1201 | | comma_expression ';' comma_expression // CFA |
---|
| 1202 | { $$ = forCtrl( $3, $1, new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), |
---|
| 1203 | OperKinds::LThan, $3->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
[6d01d89] | 1204 | | comma_expression ';' comma_expression inclexcl comma_expression // CFA |
---|
[f1aeede] | 1205 | { $$ = forCtrl( $3, $1, $3->clone(), $4, $5, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
[6d01d89] | 1206 | | comma_expression ';' comma_expression inclexcl comma_expression '~' comma_expression // CFA |
---|
[f1aeede] | 1207 | { $$ = forCtrl( $3, $1, $3->clone(), $4, $5, $7 ); } |
---|
[67d4e37] | 1208 | |
---|
| 1209 | // There is a S/R conflicit if ~ and -~ are factored out. |
---|
| 1210 | | comma_expression ';' comma_expression '~' '@' // CFA |
---|
| 1211 | { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
| 1212 | | comma_expression ';' comma_expression ErangeDown '@' // CFA |
---|
| 1213 | { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::GThan, nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } |
---|
[2d2df9f] | 1214 | | comma_expression ';' comma_expression '~' '@' '~' comma_expression // CFA |
---|
| 1215 | { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, $7 ); } |
---|
[1b54b54] | 1216 | | comma_expression ';' comma_expression ErangeDown '@' '~' comma_expression // CFA |
---|
| 1217 | { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::GThan, nullptr, $7 ); } |
---|
[2d2df9f] | 1218 | | comma_expression ';' comma_expression '~' '@' '~' '@' // CFA |
---|
| 1219 | { $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, nullptr ); } |
---|
[d1625f8] | 1220 | ; |
---|
[51b7345] | 1221 | |
---|
[cc22003] | 1222 | inclexcl: |
---|
| 1223 | '~' |
---|
| 1224 | { $$ = OperKinds::LThan; } |
---|
[d69f4bb4] | 1225 | | ErangeUpEq |
---|
[cc22003] | 1226 | { $$ = OperKinds::LEThan; } |
---|
[d69f4bb4] | 1227 | | ErangeDown |
---|
| 1228 | { $$ = OperKinds::GThan; } |
---|
| 1229 | | ErangeDownEq |
---|
| 1230 | { $$ = OperKinds::GEThan; } |
---|
[cc22003] | 1231 | ; |
---|
| 1232 | |
---|
[51b7345] | 1233 | jump_statement: |
---|
[44a81853] | 1234 | GOTO identifier_or_type_name ';' |
---|
[ab57786] | 1235 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); } |
---|
[4d51835] | 1236 | | GOTO '*' comma_expression ';' // GCC, computed goto |
---|
[4e06c1e] | 1237 | // The syntax for the GCC computed goto violates normal expression precedence, e.g., goto *i+3; => goto *(i+3); |
---|
[de62360d] | 1238 | // whereas normal operator precedence yields goto (*i)+3; |
---|
[e82aa9df] | 1239 | { $$ = new StatementNode( build_computedgoto( $3 ) ); } |
---|
[6a276a0] | 1240 | // A semantic check is required to ensure fallthru appears only in the body of a choose statement. |
---|
| 1241 | | fall_through_name ';' // CFA |
---|
| 1242 | { $$ = new StatementNode( build_branch( BranchStmt::FallThrough ) ); } |
---|
| 1243 | | fall_through_name identifier_or_type_name ';' // CFA |
---|
| 1244 | { $$ = new StatementNode( build_branch( $2, BranchStmt::FallThrough ) ); } |
---|
| 1245 | | fall_through_name DEFAULT ';' // CFA |
---|
| 1246 | { $$ = new StatementNode( build_branch( BranchStmt::FallThroughDefault ) ); } |
---|
[4d51835] | 1247 | | CONTINUE ';' |
---|
[de62360d] | 1248 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement. |
---|
[ab57786] | 1249 | { $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); } |
---|
[44a81853] | 1250 | | CONTINUE identifier_or_type_name ';' // CFA, multi-level continue |
---|
[de62360d] | 1251 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and |
---|
| 1252 | // the target of the transfer appears only at the start of an iteration statement. |
---|
[ab57786] | 1253 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); } |
---|
[4d51835] | 1254 | | BREAK ';' |
---|
[de62360d] | 1255 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement. |
---|
[ab57786] | 1256 | { $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } |
---|
[44a81853] | 1257 | | BREAK identifier_or_type_name ';' // CFA, multi-level exit |
---|
[de62360d] | 1258 | // A semantic check is required to ensure this statement appears only in the body of an iteration statement, and |
---|
| 1259 | // the target of the transfer appears only at the start of an iteration statement. |
---|
[ab57786] | 1260 | { $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); } |
---|
[4d51835] | 1261 | | RETURN comma_expression_opt ';' |
---|
[e82aa9df] | 1262 | { $$ = new StatementNode( build_return( $2 ) ); } |
---|
[c786e1d] | 1263 | | RETURN '{' initializer_list_opt comma_opt '}' ';' |
---|
[fae90d5] | 1264 | { SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; } |
---|
[c786e1d] | 1265 | // | SUSPEND ';' |
---|
| 1266 | // { SemanticError( yylloc, "Suspend expression is currently unimplemented." ); $$ = nullptr; } |
---|
| 1267 | // | SUSPEND compound_statement ';' |
---|
| 1268 | // { SemanticError( yylloc, "Suspend expression is currently unimplemented." ); $$ = nullptr; } |
---|
[8cc5cb0] | 1269 | | THROW assignment_expression_opt ';' // handles rethrow |
---|
[e82aa9df] | 1270 | { $$ = new StatementNode( build_throw( $2 ) ); } |
---|
[8cc5cb0] | 1271 | | THROWRESUME assignment_expression_opt ';' // handles reresume |
---|
[daf1af8] | 1272 | { $$ = new StatementNode( build_resume( $2 ) ); } |
---|
[8cc5cb0] | 1273 | | THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume |
---|
[daf1af8] | 1274 | { $$ = new StatementNode( build_resume_at( $2, $4 ) ); } |
---|
[4d51835] | 1275 | ; |
---|
[51b7345] | 1276 | |
---|
[6a276a0] | 1277 | fall_through_name: // CFA |
---|
| 1278 | FALLTHRU |
---|
| 1279 | | FALLTHROUGH |
---|
| 1280 | ; |
---|
| 1281 | |
---|
[8b47e50] | 1282 | with_statement: |
---|
[5b2edbc] | 1283 | WITH '(' tuple_expression_list ')' statement |
---|
[a378ca7] | 1284 | { |
---|
| 1285 | $$ = new StatementNode( build_with( $3, $5 ) ); |
---|
| 1286 | } |
---|
[5b2edbc] | 1287 | ; |
---|
| 1288 | |
---|
[b6b3c42] | 1289 | // If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so change syntax to "with mutex". |
---|
| 1290 | mutex_statement: |
---|
| 1291 | MUTEX '(' argument_expression_list ')' statement |
---|
[fae90d5] | 1292 | { SemanticError( yylloc, "Mutex statement is currently unimplemented." ); $$ = nullptr; } |
---|
[b6b3c42] | 1293 | ; |
---|
| 1294 | |
---|
[51d6d6a] | 1295 | when_clause: |
---|
[6a276a0] | 1296 | WHEN '(' comma_expression ')' { $$ = $3; } |
---|
[51d6d6a] | 1297 | ; |
---|
| 1298 | |
---|
[5b2edbc] | 1299 | when_clause_opt: |
---|
| 1300 | // empty |
---|
[135b431] | 1301 | { $$ = nullptr; } |
---|
[51d6d6a] | 1302 | | when_clause |
---|
[5b2edbc] | 1303 | ; |
---|
| 1304 | |
---|
| 1305 | waitfor: |
---|
[713926ca] | 1306 | WAITFOR '(' cast_expression ')' |
---|
| 1307 | { $$ = $3; } |
---|
| 1308 | | WAITFOR '(' cast_expression ',' argument_expression_list ')' |
---|
| 1309 | { $$ = (ExpressionNode *)$3->set_last( $5 ); } |
---|
[5b2edbc] | 1310 | ; |
---|
| 1311 | |
---|
| 1312 | timeout: |
---|
[6a276a0] | 1313 | TIMEOUT '(' comma_expression ')' { $$ = $3; } |
---|
[5b2edbc] | 1314 | ; |
---|
| 1315 | |
---|
| 1316 | waitfor_clause: |
---|
[51d6d6a] | 1317 | when_clause_opt waitfor statement %prec THEN |
---|
[135b431] | 1318 | { $$ = build_waitfor( $2, $3, $1 ); } |
---|
[5b2edbc] | 1319 | | when_clause_opt waitfor statement WOR waitfor_clause |
---|
[135b431] | 1320 | { $$ = build_waitfor( $2, $3, $1, $5 ); } |
---|
[51d6d6a] | 1321 | | when_clause_opt timeout statement %prec THEN |
---|
[135b431] | 1322 | { $$ = build_waitfor_timeout( $2, $3, $1 ); } |
---|
[5b2edbc] | 1323 | | when_clause_opt ELSE statement |
---|
[135b431] | 1324 | { $$ = build_waitfor_timeout( nullptr, $3, $1 ); } |
---|
[51d6d6a] | 1325 | // "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless) |
---|
[713926ca] | 1326 | | when_clause_opt timeout statement WOR ELSE statement |
---|
| 1327 | { SemanticError( yylloc, "else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; } |
---|
[51d6d6a] | 1328 | | when_clause_opt timeout statement WOR when_clause ELSE statement |
---|
[135b431] | 1329 | { $$ = build_waitfor_timeout( $2, $3, $1, $7, $5 ); } |
---|
[5b2edbc] | 1330 | ; |
---|
| 1331 | |
---|
| 1332 | waitfor_statement: |
---|
[51d6d6a] | 1333 | when_clause_opt waitfor statement %prec THEN |
---|
[135b431] | 1334 | { $$ = new StatementNode( build_waitfor( $2, $3, $1 ) ); } |
---|
[5b2edbc] | 1335 | | when_clause_opt waitfor statement WOR waitfor_clause |
---|
[135b431] | 1336 | { $$ = new StatementNode( build_waitfor( $2, $3, $1, $5 ) ); } |
---|
[8b47e50] | 1337 | ; |
---|
| 1338 | |
---|
[51b7345] | 1339 | exception_statement: |
---|
[cfaabe2c] | 1340 | TRY compound_statement handler_clause |
---|
[e82aa9df] | 1341 | { $$ = new StatementNode( build_try( $2, $3, 0 ) ); } |
---|
[4d51835] | 1342 | | TRY compound_statement finally_clause |
---|
[e82aa9df] | 1343 | { $$ = new StatementNode( build_try( $2, 0, $3 ) ); } |
---|
[cfaabe2c] | 1344 | | TRY compound_statement handler_clause finally_clause |
---|
[e82aa9df] | 1345 | { $$ = new StatementNode( build_try( $2, $3, $4 ) ); } |
---|
[4d51835] | 1346 | ; |
---|
[51b7345] | 1347 | |
---|
| 1348 | handler_clause: |
---|
[098f7ff] | 1349 | handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement |
---|
[3d26610] | 1350 | { $$ = new StatementNode( build_catch( $1, $4, $6, $8 ) ); } |
---|
[098f7ff] | 1351 | | handler_clause handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement |
---|
[3d26610] | 1352 | { $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $2, $5, $7, $9 ) ) ); } |
---|
[994d080] | 1353 | ; |
---|
| 1354 | |
---|
| 1355 | handler_predicate_opt: |
---|
[7fdb94e] | 1356 | // empty |
---|
[cbce272] | 1357 | { $$ = nullptr; } |
---|
[6a276a0] | 1358 | | ';' conditional_expression { $$ = $2; } |
---|
[307a732] | 1359 | ; |
---|
| 1360 | |
---|
| 1361 | handler_key: |
---|
[6a276a0] | 1362 | CATCH { $$ = CatchStmt::Terminate; } |
---|
| 1363 | | CATCHRESUME { $$ = CatchStmt::Resume; } |
---|
[4d51835] | 1364 | ; |
---|
[51b7345] | 1365 | |
---|
| 1366 | finally_clause: |
---|
[6a276a0] | 1367 | FINALLY compound_statement { $$ = new StatementNode( build_finally( $2 ) ); } |
---|
[4d51835] | 1368 | ; |
---|
[51b7345] | 1369 | |
---|
| 1370 | exception_declaration: |
---|
[d0ffed1] | 1371 | // No SUE declaration in parameter list. |
---|
| 1372 | type_specifier_nobody |
---|
| 1373 | | type_specifier_nobody declarator |
---|
[c0a33d2] | 1374 | { $$ = $2->addType( $1 ); } |
---|
[d0ffed1] | 1375 | | type_specifier_nobody variable_abstract_declarator |
---|
[4d51835] | 1376 | { $$ = $2->addType( $1 ); } |
---|
[033ff37] | 1377 | | cfa_abstract_declarator_tuple identifier // CFA |
---|
[c0a33d2] | 1378 | { $$ = $1->addName( $2 ); } |
---|
[c0aa336] | 1379 | | cfa_abstract_declarator_tuple // CFA |
---|
[4d51835] | 1380 | ; |
---|
[51b7345] | 1381 | |
---|
[2a8427c6] | 1382 | enable_disable_statement: |
---|
| 1383 | enable_disable_key identifier_list compound_statement |
---|
| 1384 | ; |
---|
| 1385 | |
---|
| 1386 | enable_disable_key: |
---|
| 1387 | ENABLE |
---|
| 1388 | | DISABLE |
---|
| 1389 | ; |
---|
| 1390 | |
---|
[51b7345] | 1391 | asm_statement: |
---|
[ab57786] | 1392 | ASM asm_volatile_opt '(' string_literal ')' ';' |
---|
[6d539f83] | 1393 | { $$ = new StatementNode( build_asm( $2, $4, 0 ) ); } |
---|
[ab57786] | 1394 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC |
---|
[6d539f83] | 1395 | { $$ = new StatementNode( build_asm( $2, $4, $6 ) ); } |
---|
[ab57786] | 1396 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';' |
---|
[6d539f83] | 1397 | { $$ = new StatementNode( build_asm( $2, $4, $6, $8 ) ); } |
---|
[ab57786] | 1398 | | ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';' |
---|
[6d539f83] | 1399 | { $$ = new StatementNode( build_asm( $2, $4, $6, $8, $10 ) ); } |
---|
[ab57786] | 1400 | | ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';' |
---|
[6d539f83] | 1401 | { $$ = new StatementNode( build_asm( $2, $5, 0, $8, $10, $12 ) ); } |
---|
[7f5566b] | 1402 | ; |
---|
| 1403 | |
---|
| 1404 | asm_volatile_opt: // GCC |
---|
| 1405 | // empty |
---|
| 1406 | { $$ = false; } |
---|
| 1407 | | VOLATILE |
---|
| 1408 | { $$ = true; } |
---|
[4d51835] | 1409 | ; |
---|
[b87a5ed] | 1410 | |
---|
| 1411 | asm_operands_opt: // GCC |
---|
[4d51835] | 1412 | // empty |
---|
[58dd019] | 1413 | { $$ = nullptr; } // use default argument |
---|
[4d51835] | 1414 | | asm_operands_list |
---|
| 1415 | ; |
---|
[b87a5ed] | 1416 | |
---|
| 1417 | asm_operands_list: // GCC |
---|
[4d51835] | 1418 | asm_operand |
---|
| 1419 | | asm_operands_list ',' asm_operand |
---|
[1d4580a] | 1420 | { $$ = (ExpressionNode *)$1->set_last( $3 ); } |
---|
[4d51835] | 1421 | ; |
---|
[b87a5ed] | 1422 | |
---|
| 1423 | asm_operand: // GCC |
---|
[ab57786] | 1424 | string_literal '(' constant_expression ')' |
---|
[513e165] | 1425 | { $$ = new ExpressionNode( new AsmExpr( maybeMoveBuild< Expression >( (ExpressionNode *)nullptr ), $1, maybeMoveBuild< Expression >( $3 ) ) ); } |
---|
[ab57786] | 1426 | | '[' constant_expression ']' string_literal '(' constant_expression ')' |
---|
[513e165] | 1427 | { $$ = new ExpressionNode( new AsmExpr( maybeMoveBuild< Expression >( $2 ), $4, maybeMoveBuild< Expression >( $6 ) ) ); } |
---|
[7f5566b] | 1428 | ; |
---|
| 1429 | |
---|
[4e06c1e] | 1430 | asm_clobbers_list_opt: // GCC |
---|
[7f5566b] | 1431 | // empty |
---|
[58dd019] | 1432 | { $$ = nullptr; } // use default argument |
---|
[ab57786] | 1433 | | string_literal |
---|
[d1625f8] | 1434 | { $$ = new ExpressionNode( $1 ); } |
---|
[ab57786] | 1435 | | asm_clobbers_list_opt ',' string_literal |
---|
[513e165] | 1436 | // set_last returns ParseNode * |
---|
[e82aa9df] | 1437 | { $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); } |
---|
[4d51835] | 1438 | ; |
---|
[b87a5ed] | 1439 | |
---|
[7f5566b] | 1440 | label_list: |
---|
[033ff37] | 1441 | identifier |
---|
[ab57786] | 1442 | { |
---|
| 1443 | $$ = new LabelNode(); $$->labels.push_back( *$1 ); |
---|
| 1444 | delete $1; // allocated by lexer |
---|
| 1445 | } |
---|
[033ff37] | 1446 | | label_list ',' identifier |
---|
[ab57786] | 1447 | { |
---|
| 1448 | $$ = $1; $1->labels.push_back( *$3 ); |
---|
| 1449 | delete $3; // allocated by lexer |
---|
| 1450 | } |
---|
[4d51835] | 1451 | ; |
---|
[51b7345] | 1452 | |
---|
[c11e31c] | 1453 | //******************************* DECLARATIONS ********************************* |
---|
[51b7345] | 1454 | |
---|
[b87a5ed] | 1455 | declaration_list_opt: // used at beginning of switch statement |
---|
[35718a9] | 1456 | // empty |
---|
[58dd019] | 1457 | { $$ = nullptr; } |
---|
[4d51835] | 1458 | | declaration_list |
---|
| 1459 | ; |
---|
[51b7345] | 1460 | |
---|
| 1461 | declaration_list: |
---|
[4d51835] | 1462 | declaration |
---|
[35718a9] | 1463 | | declaration_list declaration |
---|
| 1464 | { $$ = $1->appendList( $2 ); } |
---|
[4d51835] | 1465 | ; |
---|
[51b7345] | 1466 | |
---|
[407bde5] | 1467 | KR_parameter_list_opt: // used to declare parameter types in K&R style functions |
---|
[4cc585b] | 1468 | // empty |
---|
[58dd019] | 1469 | { $$ = nullptr; } |
---|
[35718a9] | 1470 | | KR_parameter_list |
---|
[4d51835] | 1471 | ; |
---|
[51b7345] | 1472 | |
---|
[35718a9] | 1473 | KR_parameter_list: |
---|
[4cc585b] | 1474 | push c_declaration pop ';' |
---|
| 1475 | { $$ = $2; } |
---|
[35718a9] | 1476 | | KR_parameter_list push c_declaration pop ';' |
---|
[4d51835] | 1477 | { $$ = $1->appendList( $3 ); } |
---|
| 1478 | ; |
---|
[b87a5ed] | 1479 | |
---|
[51b1202] | 1480 | local_label_declaration_opt: // GCC, local label |
---|
[4d51835] | 1481 | // empty |
---|
[51b1202] | 1482 | | local_label_declaration_list |
---|
[4d51835] | 1483 | ; |
---|
[b87a5ed] | 1484 | |
---|
[51b1202] | 1485 | local_label_declaration_list: // GCC, local label |
---|
| 1486 | LABEL local_label_list ';' |
---|
| 1487 | | local_label_declaration_list LABEL local_label_list ';' |
---|
[4d51835] | 1488 | ; |
---|
[b87a5ed] | 1489 | |
---|
[51b1202] | 1490 | local_label_list: // GCC, local label |
---|
[033ff37] | 1491 | identifier_or_type_name |
---|
| 1492 | | local_label_list ',' identifier_or_type_name |
---|
[4d51835] | 1493 | ; |
---|
[b87a5ed] | 1494 | |
---|
[936e9f4] | 1495 | declaration: // old & new style declarations |
---|
[35718a9] | 1496 | c_declaration ';' |
---|
| 1497 | | cfa_declaration ';' // CFA |
---|
[b47b827] | 1498 | | static_assert // C11 |
---|
[4d51835] | 1499 | ; |
---|
[b87a5ed] | 1500 | |
---|
[b9be000b] | 1501 | static_assert: |
---|
| 1502 | STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11 |
---|
[f6e3e34] | 1503 | { $$ = DeclarationNode::newStaticAssert( $3, $5 ); } |
---|
[b47b827] | 1504 | | STATICASSERT '(' constant_expression ')' ';' // CFA |
---|
[6e3eaa57] | 1505 | { $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( *new string( "\"\"" ) ) ); } |
---|
[b9be000b] | 1506 | |
---|
[de62360d] | 1507 | // C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function |
---|
| 1508 | // declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to |
---|
| 1509 | // the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration |
---|
| 1510 | // modifiers are interpreted from left to right and the entire type specification is distributed across all variables in |
---|
| 1511 | // the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program |
---|
| 1512 | // block, but cannot be mixed within a specific declaration. |
---|
[c11e31c] | 1513 | // |
---|
[b87a5ed] | 1514 | // CFA C |
---|
| 1515 | // [10] int x; int x[10]; // array of 10 integers |
---|
| 1516 | // [10] * char y; char *y[10]; // array of 10 pointers to char |
---|
| 1517 | |
---|
[c0aa336] | 1518 | cfa_declaration: // CFA |
---|
[4cc585b] | 1519 | cfa_variable_declaration |
---|
| 1520 | | cfa_typedef_declaration |
---|
| 1521 | | cfa_function_declaration |
---|
| 1522 | | type_declaring_list |
---|
| 1523 | | trait_specifier |
---|
[4d51835] | 1524 | ; |
---|
[b87a5ed] | 1525 | |
---|
[c0aa336] | 1526 | cfa_variable_declaration: // CFA |
---|
| 1527 | cfa_variable_specifier initializer_opt |
---|
[7fdb94e] | 1528 | { $$ = $1->addInitializer( $2 ); } |
---|
[c0aa336] | 1529 | | declaration_qualifier_list cfa_variable_specifier initializer_opt |
---|
[de62360d] | 1530 | // declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude |
---|
| 1531 | // them as a type_qualifier cannot appear in that context. |
---|
[7fdb94e] | 1532 | { $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); } |
---|
[c0aa336] | 1533 | | cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt |
---|
[7fdb94e] | 1534 | { $$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) ); } |
---|
[4d51835] | 1535 | ; |
---|
[b87a5ed] | 1536 | |
---|
[c0aa336] | 1537 | cfa_variable_specifier: // CFA |
---|
[de62360d] | 1538 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static |
---|
| 1539 | // storage-class |
---|
[c0aa336] | 1540 | cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt |
---|
[7fdb94e] | 1541 | { $$ = $1->addName( $2 )->addAsmName( $3 ); } |
---|
[c0aa336] | 1542 | | cfa_abstract_tuple identifier_or_type_name asm_name_opt |
---|
[7fdb94e] | 1543 | { $$ = $1->addName( $2 )->addAsmName( $3 ); } |
---|
[c0aa336] | 1544 | | type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt |
---|
[7fdb94e] | 1545 | { $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); } |
---|
[4d51835] | 1546 | ; |
---|
[b87a5ed] | 1547 | |
---|
[c0aa336] | 1548 | cfa_function_declaration: // CFA |
---|
| 1549 | cfa_function_specifier |
---|
| 1550 | | type_qualifier_list cfa_function_specifier |
---|
[7fdb94e] | 1551 | { $$ = $2->addQualifiers( $1 ); } |
---|
[c0aa336] | 1552 | | declaration_qualifier_list cfa_function_specifier |
---|
[7fdb94e] | 1553 | { $$ = $2->addQualifiers( $1 ); } |
---|
[c0aa336] | 1554 | | declaration_qualifier_list type_qualifier_list cfa_function_specifier |
---|
[7fdb94e] | 1555 | { $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); } |
---|
[40de461] | 1556 | | cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[4d51835] | 1557 | { |
---|
[481115f] | 1558 | // Append the return type at the start (left-hand-side) to each identifier in the list. |
---|
| 1559 | DeclarationNode * ret = new DeclarationNode; |
---|
| 1560 | ret->type = maybeClone( $1->type->base ); |
---|
[40de461] | 1561 | $$ = $1->appendList( DeclarationNode::newFunction( $3, ret, $6, nullptr ) ); |
---|
[4d51835] | 1562 | } |
---|
| 1563 | ; |
---|
[b87a5ed] | 1564 | |
---|
[c0aa336] | 1565 | cfa_function_specifier: // CFA |
---|
[40de461] | 1566 | // '[' ']' identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' // S/R conflict |
---|
[1b29996] | 1567 | // { |
---|
| 1568 | // $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true ); |
---|
| 1569 | // } |
---|
[40de461] | 1570 | // '[' ']' identifier '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[2871210] | 1571 | // { |
---|
| 1572 | // typedefTable.setNextIdentifier( *$5 ); |
---|
| 1573 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1574 | // } |
---|
[40de461] | 1575 | // | '[' ']' TYPEDEFname '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[2871210] | 1576 | // { |
---|
| 1577 | // typedefTable.setNextIdentifier( *$5 ); |
---|
| 1578 | // $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true ); |
---|
| 1579 | // } |
---|
| 1580 | // | '[' ']' typegen_name |
---|
| 1581 | // identifier_or_type_name must be broken apart because of the sequence: |
---|
[4d51835] | 1582 | // |
---|
[40de461] | 1583 | // '[' ']' identifier_or_type_name '(' cfa_parameter_ellipsis_list_opt ')' |
---|
[4d51835] | 1584 | // '[' ']' type_specifier |
---|
| 1585 | // |
---|
[2871210] | 1586 | // type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be |
---|
| 1587 | // flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name. |
---|
[40de461] | 1588 | cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[c0aa336] | 1589 | // To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator). |
---|
[c0a33d2] | 1590 | { $$ = DeclarationNode::newFunction( $2, $1, $5, 0 ); } |
---|
[40de461] | 1591 | | cfa_function_return identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[c0a33d2] | 1592 | { $$ = DeclarationNode::newFunction( $2, $1, $5, 0 ); } |
---|
[4d51835] | 1593 | ; |
---|
[b87a5ed] | 1594 | |
---|
[c0aa336] | 1595 | cfa_function_return: // CFA |
---|
[c0a33d2] | 1596 | '[' push cfa_parameter_list pop ']' |
---|
| 1597 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
| 1598 | | '[' push cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ']' |
---|
[b048dc3] | 1599 | // To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'. |
---|
[c0a33d2] | 1600 | { $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); } |
---|
[4d51835] | 1601 | ; |
---|
[b87a5ed] | 1602 | |
---|
[c0aa336] | 1603 | cfa_typedef_declaration: // CFA |
---|
| 1604 | TYPEDEF cfa_variable_specifier |
---|
[4d51835] | 1605 | { |
---|
[ecae5860] | 1606 | typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "1" ); |
---|
[4d51835] | 1607 | $$ = $2->addTypedef(); |
---|
| 1608 | } |
---|
[c0aa336] | 1609 | | TYPEDEF cfa_function_specifier |
---|
[4d51835] | 1610 | { |
---|
[ecae5860] | 1611 | typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "2" ); |
---|
[4d51835] | 1612 | $$ = $2->addTypedef(); |
---|
| 1613 | } |
---|
[033ff37] | 1614 | | cfa_typedef_declaration pop ',' push identifier |
---|
[4d51835] | 1615 | { |
---|
[ecae5860] | 1616 | typedefTable.addToEnclosingScope( *$5, TYPEDEFname, "3" ); |
---|
[4d51835] | 1617 | $$ = $1->appendList( $1->cloneType( $5 ) ); |
---|
| 1618 | } |
---|
| 1619 | ; |
---|
[b87a5ed] | 1620 | |
---|
[de62360d] | 1621 | // Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as |
---|
| 1622 | // a separate form of declaration, which syntactically precludes storage-class specifiers and initialization. |
---|
[51b7345] | 1623 | |
---|
| 1624 | typedef_declaration: |
---|
[4d51835] | 1625 | TYPEDEF type_specifier declarator |
---|
| 1626 | { |
---|
[ecae5860] | 1627 | typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "4" ); |
---|
[4d51835] | 1628 | $$ = $3->addType( $2 )->addTypedef(); |
---|
| 1629 | } |
---|
| 1630 | | typedef_declaration pop ',' push declarator |
---|
| 1631 | { |
---|
[ecae5860] | 1632 | typedefTable.addToEnclosingScope( *$5->name, TYPEDEFname, "5" ); |
---|
[4d51835] | 1633 | $$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() ); |
---|
| 1634 | } |
---|
[de62360d] | 1635 | | type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 ) |
---|
[4d51835] | 1636 | { |
---|
[ecae5860] | 1637 | typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname, "6" ); |
---|
[4d51835] | 1638 | $$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef(); |
---|
| 1639 | } |
---|
| 1640 | | type_specifier TYPEDEF declarator |
---|
| 1641 | { |
---|
[ecae5860] | 1642 | typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "7" ); |
---|
[4d51835] | 1643 | $$ = $3->addType( $1 )->addTypedef(); |
---|
| 1644 | } |
---|
| 1645 | | type_specifier TYPEDEF type_qualifier_list declarator |
---|
| 1646 | { |
---|
[ecae5860] | 1647 | typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname, "8" ); |
---|
[de62360d] | 1648 | $$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 ); |
---|
[4d51835] | 1649 | } |
---|
| 1650 | ; |
---|
[b87a5ed] | 1651 | |
---|
[721f17a] | 1652 | typedef_expression: |
---|
| 1653 | // GCC, naming expression type: typedef name = exp; gives a name to the type of an expression |
---|
[033ff37] | 1654 | TYPEDEF identifier '=' assignment_expression |
---|
[4d51835] | 1655 | { |
---|
[7fdb94e] | 1656 | // $$ = DeclarationNode::newName( 0 ); // unimplemented |
---|
| 1657 | SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr; |
---|
[4d51835] | 1658 | } |
---|
[033ff37] | 1659 | | typedef_expression pop ',' push identifier '=' assignment_expression |
---|
[4d51835] | 1660 | { |
---|
[7fdb94e] | 1661 | // $$ = DeclarationNode::newName( 0 ); // unimplemented |
---|
| 1662 | SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr; |
---|
[4d51835] | 1663 | } |
---|
| 1664 | ; |
---|
[51b7345] | 1665 | |
---|
[c0aa336] | 1666 | //c_declaration: |
---|
| 1667 | // declaring_list pop ';' |
---|
| 1668 | // | typedef_declaration pop ';' |
---|
| 1669 | // | typedef_expression pop ';' // GCC, naming expression type |
---|
| 1670 | // | sue_declaration_specifier pop ';' |
---|
| 1671 | // ; |
---|
| 1672 | // |
---|
| 1673 | //declaring_list: |
---|
| 1674 | // // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static |
---|
| 1675 | // // storage-class |
---|
| 1676 | // declarator asm_name_opt initializer_opt |
---|
| 1677 | // { |
---|
[2f0a0678] | 1678 | // typedefTable.addToEnclosingScope( IDENTIFIER ); |
---|
[c0aa336] | 1679 | // $$ = ( $2->addType( $1 ))->addAsmName( $3 )->addInitializer( $4 ); |
---|
| 1680 | // } |
---|
| 1681 | // | declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt |
---|
| 1682 | // { |
---|
[2f0a0678] | 1683 | // typedefTable.addToEnclosingScope( IDENTIFIER ); |
---|
[c0aa336] | 1684 | // $$ = $1->appendList( $1->cloneBaseType( $4->addAsmName( $5 )->addInitializer( $6 ) ) ); |
---|
| 1685 | // } |
---|
| 1686 | // ; |
---|
| 1687 | |
---|
| 1688 | c_declaration: |
---|
[4cc585b] | 1689 | declaration_specifier declaring_list |
---|
[7fdb94e] | 1690 | { $$ = distAttr( $1, $2 ); } |
---|
[4cc585b] | 1691 | | typedef_declaration |
---|
| 1692 | | typedef_expression // GCC, naming expression type |
---|
| 1693 | | sue_declaration_specifier |
---|
[4d51835] | 1694 | ; |
---|
[51b7345] | 1695 | |
---|
| 1696 | declaring_list: |
---|
[de62360d] | 1697 | // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static |
---|
| 1698 | // storage-class |
---|
[c0aa336] | 1699 | declarator asm_name_opt initializer_opt |
---|
[7fdb94e] | 1700 | { $$ = $1->addAsmName( $2 )->addInitializer( $3 ); } |
---|
[4d51835] | 1701 | | declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt |
---|
[7fdb94e] | 1702 | { $$ = $1->appendList( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); } |
---|
[4d51835] | 1703 | ; |
---|
[b87a5ed] | 1704 | |
---|
| 1705 | declaration_specifier: // type specifier + storage class |
---|
[4d51835] | 1706 | basic_declaration_specifier |
---|
| 1707 | | sue_declaration_specifier |
---|
[84d58c5] | 1708 | | type_declaration_specifier |
---|
[4d51835] | 1709 | ; |
---|
[b87a5ed] | 1710 | |
---|
[d0ffed1] | 1711 | declaration_specifier_nobody: // type specifier + storage class - {...} |
---|
| 1712 | // Preclude SUE declarations in restricted scopes: |
---|
| 1713 | // |
---|
| 1714 | // int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... } |
---|
| 1715 | // |
---|
| 1716 | // because it is impossible to call f due to name equivalence. |
---|
| 1717 | basic_declaration_specifier |
---|
| 1718 | | sue_declaration_specifier_nobody |
---|
[84d58c5] | 1719 | | type_declaration_specifier |
---|
[d0ffed1] | 1720 | ; |
---|
| 1721 | |
---|
| 1722 | type_specifier: // type specifier |
---|
[4d51835] | 1723 | basic_type_specifier |
---|
| 1724 | | sue_type_specifier |
---|
[84d58c5] | 1725 | | type_type_specifier |
---|
[4d51835] | 1726 | ; |
---|
[b87a5ed] | 1727 | |
---|
[d0ffed1] | 1728 | type_specifier_nobody: // type specifier - {...} |
---|
| 1729 | // Preclude SUE declarations in restricted scopes: |
---|
| 1730 | // |
---|
| 1731 | // int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... } |
---|
| 1732 | // |
---|
| 1733 | // because it is impossible to call f due to name equivalence. |
---|
| 1734 | basic_type_specifier |
---|
| 1735 | | sue_type_specifier_nobody |
---|
[84d58c5] | 1736 | | type_type_specifier |
---|
[d0ffed1] | 1737 | ; |
---|
| 1738 | |
---|
[b87a5ed] | 1739 | type_qualifier_list_opt: // GCC, used in asm_statement |
---|
[4d51835] | 1740 | // empty |
---|
[58dd019] | 1741 | { $$ = nullptr; } |
---|
[4d51835] | 1742 | | type_qualifier_list |
---|
| 1743 | ; |
---|
[51b7345] | 1744 | |
---|
| 1745 | type_qualifier_list: |
---|
[de62360d] | 1746 | // A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration. |
---|
[4d51835] | 1747 | // |
---|
[de62360d] | 1748 | // ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same |
---|
| 1749 | // specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it |
---|
| 1750 | // appeared only once. |
---|
[4d51835] | 1751 | type_qualifier |
---|
| 1752 | | type_qualifier_list type_qualifier |
---|
| 1753 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1754 | ; |
---|
[51b7345] | 1755 | |
---|
| 1756 | type_qualifier: |
---|
[4d51835] | 1757 | type_qualifier_name |
---|
| 1758 | | attribute |
---|
| 1759 | ; |
---|
[51b7345] | 1760 | |
---|
| 1761 | type_qualifier_name: |
---|
[4d51835] | 1762 | CONST |
---|
[738e304] | 1763 | { $$ = DeclarationNode::newTypeQualifier( Type::Const ); } |
---|
[4d51835] | 1764 | | RESTRICT |
---|
[738e304] | 1765 | { $$ = DeclarationNode::newTypeQualifier( Type::Restrict ); } |
---|
[4d51835] | 1766 | | VOLATILE |
---|
[738e304] | 1767 | { $$ = DeclarationNode::newTypeQualifier( Type::Volatile ); } |
---|
[4d51835] | 1768 | | ATOMIC |
---|
[738e304] | 1769 | { $$ = DeclarationNode::newTypeQualifier( Type::Atomic ); } |
---|
[a16a7ec] | 1770 | | forall |
---|
| 1771 | ; |
---|
| 1772 | |
---|
| 1773 | forall: |
---|
[35718a9] | 1774 | FORALL '(' type_parameter_list ')' // CFA |
---|
| 1775 | { $$ = DeclarationNode::newForall( $3 ); } |
---|
[4d51835] | 1776 | ; |
---|
[51b7345] | 1777 | |
---|
| 1778 | declaration_qualifier_list: |
---|
[4d51835] | 1779 | storage_class_list |
---|
[de62360d] | 1780 | | type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 ) |
---|
[4d51835] | 1781 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1782 | | declaration_qualifier_list type_qualifier_list storage_class_list |
---|
| 1783 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1784 | ; |
---|
[51b7345] | 1785 | |
---|
| 1786 | storage_class_list: |
---|
[de62360d] | 1787 | // A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that |
---|
| 1788 | // only one of each is specified, except for inline, which can appear with the others. |
---|
[4d51835] | 1789 | // |
---|
[de62360d] | 1790 | // ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration |
---|
| 1791 | // specifiers in a declaration. |
---|
[4d51835] | 1792 | storage_class |
---|
| 1793 | | storage_class_list storage_class |
---|
| 1794 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1795 | ; |
---|
[51b7345] | 1796 | |
---|
| 1797 | storage_class: |
---|
[4d51835] | 1798 | EXTERN |
---|
[68fe077a] | 1799 | { $$ = DeclarationNode::newStorageClass( Type::Extern ); } |
---|
[4d51835] | 1800 | | STATIC |
---|
[68fe077a] | 1801 | { $$ = DeclarationNode::newStorageClass( Type::Static ); } |
---|
[4d51835] | 1802 | | AUTO |
---|
[68fe077a] | 1803 | { $$ = DeclarationNode::newStorageClass( Type::Auto ); } |
---|
[4d51835] | 1804 | | REGISTER |
---|
[68fe077a] | 1805 | { $$ = DeclarationNode::newStorageClass( Type::Register ); } |
---|
[dd020c0] | 1806 | | THREADLOCAL // C11 |
---|
[68fe077a] | 1807 | { $$ = DeclarationNode::newStorageClass( Type::Threadlocal ); } |
---|
[dd020c0] | 1808 | // Put function specifiers here to simplify parsing rules, but separate them semantically. |
---|
[4d51835] | 1809 | | INLINE // C99 |
---|
[ddfd945] | 1810 | { $$ = DeclarationNode::newFuncSpecifier( Type::Inline ); } |
---|
[4d51835] | 1811 | | FORTRAN // C99 |
---|
[ddfd945] | 1812 | { $$ = DeclarationNode::newFuncSpecifier( Type::Fortran ); } |
---|
[68cd1ce] | 1813 | | NORETURN // C11 |
---|
[ddfd945] | 1814 | { $$ = DeclarationNode::newFuncSpecifier( Type::Noreturn ); } |
---|
[4d51835] | 1815 | ; |
---|
[51b7345] | 1816 | |
---|
| 1817 | basic_type_name: |
---|
[201aeb9] | 1818 | VOID |
---|
[4d51835] | 1819 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); } |
---|
| 1820 | | BOOL // C99 |
---|
| 1821 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); } |
---|
[201aeb9] | 1822 | | CHAR |
---|
| 1823 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); } |
---|
| 1824 | | INT |
---|
| 1825 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); } |
---|
| 1826 | | INT128 |
---|
| 1827 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int128 ); } |
---|
[f1da02c] | 1828 | | UINT128 |
---|
| 1829 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Int128 )->addType( DeclarationNode::newSignedNess( DeclarationNode::Unsigned ) ); } |
---|
[201aeb9] | 1830 | | FLOAT |
---|
| 1831 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); } |
---|
| 1832 | | DOUBLE |
---|
| 1833 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); } |
---|
[e15853c] | 1834 | | uuFLOAT80 |
---|
| 1835 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uuFloat80 ); } |
---|
| 1836 | | uuFLOAT128 |
---|
| 1837 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uuFloat128 ); } |
---|
| 1838 | | uFLOAT16 |
---|
| 1839 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat16 ); } |
---|
| 1840 | | uFLOAT32 |
---|
| 1841 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat32 ); } |
---|
| 1842 | | uFLOAT32X |
---|
| 1843 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat32x ); } |
---|
| 1844 | | uFLOAT64 |
---|
| 1845 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat64 ); } |
---|
| 1846 | | uFLOAT64X |
---|
| 1847 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat64x ); } |
---|
| 1848 | | uFLOAT128 |
---|
| 1849 | { $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat128 ); } |
---|
[4d51835] | 1850 | | COMPLEX // C99 |
---|
[5b639ee] | 1851 | { $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); } |
---|
[4d51835] | 1852 | | IMAGINARY // C99 |
---|
[5b639ee] | 1853 | { $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); } |
---|
[201aeb9] | 1854 | | SIGNED |
---|
| 1855 | { $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); } |
---|
| 1856 | | UNSIGNED |
---|
| 1857 | { $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); } |
---|
| 1858 | | SHORT |
---|
| 1859 | { $$ = DeclarationNode::newLength( DeclarationNode::Short ); } |
---|
| 1860 | | LONG |
---|
| 1861 | { $$ = DeclarationNode::newLength( DeclarationNode::Long ); } |
---|
[72457b6] | 1862 | | VALIST // GCC, __builtin_va_list |
---|
| 1863 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); } |
---|
[f673c13c] | 1864 | | AUTO_TYPE |
---|
| 1865 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::AutoType ); } |
---|
[4d51835] | 1866 | ; |
---|
[51b7345] | 1867 | |
---|
| 1868 | basic_declaration_specifier: |
---|
[4d51835] | 1869 | // A semantic check is necessary for conflicting storage classes. |
---|
| 1870 | basic_type_specifier |
---|
| 1871 | | declaration_qualifier_list basic_type_specifier |
---|
| 1872 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1873 | | basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1874 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1875 | | basic_declaration_specifier storage_class type_qualifier_list |
---|
| 1876 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1877 | | basic_declaration_specifier storage_class basic_type_specifier |
---|
| 1878 | { $$ = $3->addQualifiers( $2 )->addType( $1 ); } |
---|
| 1879 | ; |
---|
[51b7345] | 1880 | |
---|
| 1881 | basic_type_specifier: |
---|
[84d58c5] | 1882 | direct_type |
---|
[f38e7d7] | 1883 | // Cannot have type modifiers, e.g., short, long, etc. |
---|
[84d58c5] | 1884 | | type_qualifier_list_opt indirect_type type_qualifier_list_opt |
---|
[4d51835] | 1885 | { $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); } |
---|
| 1886 | ; |
---|
[51b7345] | 1887 | |
---|
[84d58c5] | 1888 | direct_type: |
---|
[4d51835] | 1889 | basic_type_name |
---|
| 1890 | | type_qualifier_list basic_type_name |
---|
| 1891 | { $$ = $2->addQualifiers( $1 ); } |
---|
[84d58c5] | 1892 | | direct_type type_qualifier |
---|
[4d51835] | 1893 | { $$ = $1->addQualifiers( $2 ); } |
---|
[84d58c5] | 1894 | | direct_type basic_type_name |
---|
[4d51835] | 1895 | { $$ = $1->addType( $2 ); } |
---|
| 1896 | ; |
---|
[51b7345] | 1897 | |
---|
[84d58c5] | 1898 | indirect_type: |
---|
[b6ad601] | 1899 | TYPEOF '(' type ')' // GCC: typeof( x ) y; |
---|
[4d51835] | 1900 | { $$ = $3; } |
---|
[b6ad601] | 1901 | | TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y; |
---|
[4d51835] | 1902 | { $$ = DeclarationNode::newTypeof( $3 ); } |
---|
[b6ad601] | 1903 | | BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y; |
---|
| 1904 | { $$ = DeclarationNode::newTypeof( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ), true ); } |
---|
| 1905 | | BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y; |
---|
| 1906 | { $$ = DeclarationNode::newTypeof( $3, true ); } |
---|
[f38e7d7] | 1907 | | ZERO_T // CFA |
---|
| 1908 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::Zero ); } |
---|
| 1909 | | ONE_T // CFA |
---|
| 1910 | { $$ = DeclarationNode::newBuiltinType( DeclarationNode::One ); } |
---|
[4d51835] | 1911 | ; |
---|
[51b7345] | 1912 | |
---|
[d0ffed1] | 1913 | sue_declaration_specifier: // struct, union, enum + storage class + type specifier |
---|
[4d51835] | 1914 | sue_type_specifier |
---|
| 1915 | | declaration_qualifier_list sue_type_specifier |
---|
| 1916 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1917 | | sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1918 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1919 | | sue_declaration_specifier storage_class type_qualifier_list |
---|
| 1920 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1921 | ; |
---|
[51b7345] | 1922 | |
---|
[d0ffed1] | 1923 | sue_type_specifier: // struct, union, enum + type specifier |
---|
| 1924 | elaborated_type |
---|
[fdca7c6] | 1925 | | type_qualifier_list |
---|
| 1926 | { if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type |
---|
| 1927 | elaborated_type |
---|
| 1928 | { $$ = $3->addQualifiers( $1 ); } |
---|
[4d51835] | 1929 | | sue_type_specifier type_qualifier |
---|
[284da8c] | 1930 | { |
---|
| 1931 | if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type |
---|
| 1932 | $$ = $1->addQualifiers( $2 ); |
---|
| 1933 | } |
---|
[4d51835] | 1934 | ; |
---|
[51b7345] | 1935 | |
---|
[d0ffed1] | 1936 | sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier |
---|
| 1937 | sue_type_specifier_nobody |
---|
| 1938 | | declaration_qualifier_list sue_type_specifier_nobody |
---|
| 1939 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1940 | | sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2) |
---|
| 1941 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1942 | | sue_declaration_specifier_nobody storage_class type_qualifier_list |
---|
| 1943 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1944 | ; |
---|
| 1945 | |
---|
| 1946 | sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier |
---|
| 1947 | elaborated_type_nobody |
---|
| 1948 | | type_qualifier_list elaborated_type_nobody |
---|
| 1949 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1950 | | sue_type_specifier_nobody type_qualifier |
---|
| 1951 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1952 | ; |
---|
| 1953 | |
---|
[84d58c5] | 1954 | type_declaration_specifier: |
---|
| 1955 | type_type_specifier |
---|
| 1956 | | declaration_qualifier_list type_type_specifier |
---|
[4d51835] | 1957 | { $$ = $2->addQualifiers( $1 ); } |
---|
[84d58c5] | 1958 | | type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2) |
---|
[4d51835] | 1959 | { $$ = $1->addQualifiers( $2 ); } |
---|
[84d58c5] | 1960 | | type_declaration_specifier storage_class type_qualifier_list |
---|
[4d51835] | 1961 | { $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); } |
---|
| 1962 | ; |
---|
[b87a5ed] | 1963 | |
---|
[84d58c5] | 1964 | type_type_specifier: // typedef types |
---|
| 1965 | type_name |
---|
| 1966 | | type_qualifier_list type_name |
---|
| 1967 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 1968 | | type_type_specifier type_qualifier |
---|
| 1969 | { $$ = $1->addQualifiers( $2 ); } |
---|
| 1970 | ; |
---|
| 1971 | |
---|
| 1972 | type_name: |
---|
[4d51835] | 1973 | TYPEDEFname |
---|
| 1974 | { $$ = DeclarationNode::newFromTypedef( $1 ); } |
---|
[84d58c5] | 1975 | | '.' TYPEDEFname |
---|
[47498bd] | 1976 | { $$ = DeclarationNode::newQualifiedType( DeclarationNode::newFromGlobalScope(), DeclarationNode::newFromTypedef( $2 ) ); } |
---|
[84d58c5] | 1977 | | type_name '.' TYPEDEFname |
---|
[c5d7701] | 1978 | { $$ = DeclarationNode::newQualifiedType( $1, DeclarationNode::newFromTypedef( $3 ) ); } |
---|
[84d58c5] | 1979 | | typegen_name |
---|
| 1980 | | '.' typegen_name |
---|
[47498bd] | 1981 | { $$ = DeclarationNode::newQualifiedType( DeclarationNode::newFromGlobalScope(), $2 ); } |
---|
[84d58c5] | 1982 | | type_name '.' typegen_name |
---|
[c5d7701] | 1983 | { $$ = DeclarationNode::newQualifiedType( $1, $3 ); } |
---|
[84d58c5] | 1984 | ; |
---|
| 1985 | |
---|
| 1986 | typegen_name: // CFA |
---|
[65d6de4] | 1987 | TYPEGENname |
---|
| 1988 | { $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); } |
---|
| 1989 | | TYPEGENname '(' ')' |
---|
[67cf18c] | 1990 | { $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); } |
---|
| 1991 | | TYPEGENname '(' type_list ')' |
---|
[84d58c5] | 1992 | { $$ = DeclarationNode::newFromTypeGen( $1, $3 ); } |
---|
[4d51835] | 1993 | ; |
---|
[51b7345] | 1994 | |
---|
[d0ffed1] | 1995 | elaborated_type: // struct, union, enum |
---|
[c0aa336] | 1996 | aggregate_type |
---|
| 1997 | | enum_type |
---|
[4d51835] | 1998 | ; |
---|
[51b7345] | 1999 | |
---|
[d0ffed1] | 2000 | elaborated_type_nobody: // struct, union, enum - {...} |
---|
| 2001 | aggregate_type_nobody |
---|
| 2002 | | enum_type_nobody |
---|
| 2003 | ; |
---|
| 2004 | |
---|
[3d56d15b] | 2005 | fred: |
---|
| 2006 | // empty |
---|
| 2007 | { yyy = false; } |
---|
| 2008 | ; |
---|
| 2009 | |
---|
[d0ffed1] | 2010 | aggregate_type: // struct, union |
---|
[fc20514] | 2011 | aggregate_key attribute_list_opt |
---|
| 2012 | { forall = false; } // reset |
---|
| 2013 | '{' field_declaration_list_opt '}' type_parameters_opt |
---|
[777ed2b] | 2014 | { $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); } |
---|
[033ff37] | 2015 | | aggregate_key attribute_list_opt identifier fred |
---|
[fdca7c6] | 2016 | { |
---|
[26ef3b2] | 2017 | typedefTable.makeTypedef( *$3, forall || typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname ); // create typedef |
---|
[fdca7c6] | 2018 | forall = false; // reset |
---|
| 2019 | } |
---|
[284da8c] | 2020 | '{' field_declaration_list_opt '}' type_parameters_opt |
---|
| 2021 | { $$ = DeclarationNode::newAggregate( $1, $3, $9, $7, true )->addQualifiers( $2 ); } |
---|
[3d56d15b] | 2022 | | aggregate_key attribute_list_opt type_name fred |
---|
[407bde5] | 2023 | { |
---|
[7de22b28] | 2024 | // for type_name can be a qualified type name S.T, in which case only the last name in the chain needs a typedef (other names in the chain should already have one) |
---|
[26ef3b2] | 2025 | typedefTable.makeTypedef( *$3->type->leafName(), forall || typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname ); // create typedef |
---|
[407bde5] | 2026 | forall = false; // reset |
---|
| 2027 | } |
---|
[284da8c] | 2028 | '{' field_declaration_list_opt '}' type_parameters_opt |
---|
| 2029 | { $$ = DeclarationNode::newAggregate( $1, $3->type->symbolic.name, $9, $7, true )->addQualifiers( $2 ); } |
---|
[d0ffed1] | 2030 | | aggregate_type_nobody |
---|
| 2031 | ; |
---|
| 2032 | |
---|
[284da8c] | 2033 | type_parameters_opt: |
---|
| 2034 | // empty |
---|
| 2035 | { $$ = nullptr; } %prec '}' |
---|
| 2036 | | '(' type_list ')' |
---|
| 2037 | { $$ = $2; } |
---|
| 2038 | ; |
---|
| 2039 | |
---|
[d0ffed1] | 2040 | aggregate_type_nobody: // struct, union - {...} |
---|
[033ff37] | 2041 | aggregate_key attribute_list_opt identifier fred |
---|
[84d58c5] | 2042 | { |
---|
[26ef3b2] | 2043 | typedefTable.makeTypedef( *$3, forall || typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname ); |
---|
[9997fee] | 2044 | forall = false; // reset |
---|
[84d58c5] | 2045 | $$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 ); |
---|
| 2046 | } |
---|
[3d56d15b] | 2047 | | aggregate_key attribute_list_opt type_name fred |
---|
[65d6de4] | 2048 | { |
---|
[fc20514] | 2049 | forall = false; // reset |
---|
[65d6de4] | 2050 | // Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is |
---|
| 2051 | // switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and |
---|
| 2052 | // delete newFromTypeGen. |
---|
| 2053 | $$ = DeclarationNode::newAggregate( $1, $3->type->symbolic.name, $3->type->symbolic.actuals, nullptr, false )->addQualifiers( $2 ); |
---|
| 2054 | $3->type->symbolic.name = nullptr; |
---|
| 2055 | $3->type->symbolic.actuals = nullptr; |
---|
| 2056 | delete $3; |
---|
| 2057 | } |
---|
[4d51835] | 2058 | ; |
---|
[51b7345] | 2059 | |
---|
| 2060 | aggregate_key: |
---|
[c0aa336] | 2061 | STRUCT |
---|
[3d56d15b] | 2062 | { yyy = true; $$ = DeclarationNode::Struct; } |
---|
[c0aa336] | 2063 | | UNION |
---|
[3d56d15b] | 2064 | { yyy = true; $$ = DeclarationNode::Union; } |
---|
[c27fb59] | 2065 | | EXCEPTION |
---|
[3d56d15b] | 2066 | { yyy = true; $$ = DeclarationNode::Exception; } |
---|
[553772b] | 2067 | | GENERATOR |
---|
| 2068 | { yyy = true; $$ = DeclarationNode::Coroutine; } |
---|
[d3bc0ad] | 2069 | | COROUTINE |
---|
[3d56d15b] | 2070 | { yyy = true; $$ = DeclarationNode::Coroutine; } |
---|
[d3bc0ad] | 2071 | | MONITOR |
---|
[3d56d15b] | 2072 | { yyy = true; $$ = DeclarationNode::Monitor; } |
---|
[d3bc0ad] | 2073 | | THREAD |
---|
[3d56d15b] | 2074 | { yyy = true; $$ = DeclarationNode::Thread; } |
---|
[4d51835] | 2075 | ; |
---|
[51b7345] | 2076 | |
---|
[7fdb94e] | 2077 | field_declaration_list_opt: |
---|
[5d125e4] | 2078 | // empty |
---|
[58dd019] | 2079 | { $$ = nullptr; } |
---|
[7fdb94e] | 2080 | | field_declaration_list_opt field_declaration |
---|
[a7741435] | 2081 | { $$ = $1 ? $1->appendList( $2 ) : $2; } |
---|
[4d51835] | 2082 | ; |
---|
[51b7345] | 2083 | |
---|
| 2084 | field_declaration: |
---|
[679e644] | 2085 | type_specifier field_declaring_list_opt ';' |
---|
[f7e4db27] | 2086 | { $$ = fieldDecl( $1, $2 ); } |
---|
[679e644] | 2087 | | EXTENSION type_specifier field_declaring_list_opt ';' // GCC |
---|
[f7e4db27] | 2088 | { $$ = fieldDecl( $2, $3 ); distExt( $$ ); } |
---|
[e07caa2] | 2089 | | INLINE type_specifier field_abstract_list_opt ';' // CFA |
---|
[679e644] | 2090 | { |
---|
[dea36ee] | 2091 | if ( ! $3 ) { // field declarator ? |
---|
| 2092 | $3 = DeclarationNode::newName( nullptr ); |
---|
| 2093 | } // if |
---|
[679a260] | 2094 | $3->inLine = true; |
---|
[679e644] | 2095 | $$ = distAttr( $2, $3 ); // mark all fields in list |
---|
[e07caa2] | 2096 | distInl( $3 ); |
---|
[8f91c9ae] | 2097 | } |
---|
[46fa473] | 2098 | | typedef_declaration ';' // CFA |
---|
| 2099 | | cfa_field_declaring_list ';' // CFA, new style field declaration |
---|
| 2100 | | EXTENSION cfa_field_declaring_list ';' // GCC |
---|
| 2101 | { distExt( $2 ); $$ = $2; } // mark all fields in list |
---|
[679e644] | 2102 | | INLINE cfa_field_abstract_list ';' // CFA, new style field declaration |
---|
| 2103 | { $$ = $2; } // mark all fields in list |
---|
[46fa473] | 2104 | | cfa_typedef_declaration ';' // CFA |
---|
[b47b827] | 2105 | | static_assert // C11 |
---|
[4d51835] | 2106 | ; |
---|
[b87a5ed] | 2107 | |
---|
[679e644] | 2108 | field_declaring_list_opt: |
---|
| 2109 | // empty |
---|
| 2110 | { $$ = nullptr; } |
---|
| 2111 | | field_declarator |
---|
| 2112 | | field_declaring_list_opt ',' attribute_list_opt field_declarator |
---|
[c0aa336] | 2113 | { $$ = $1->appendList( $4->addQualifiers( $3 ) ); } |
---|
[4d51835] | 2114 | ; |
---|
[51b7345] | 2115 | |
---|
[679e644] | 2116 | field_declarator: |
---|
[e07caa2] | 2117 | bit_subrange_size // C special case, no field name |
---|
[4d51835] | 2118 | { $$ = DeclarationNode::newBitfield( $1 ); } |
---|
| 2119 | | variable_declarator bit_subrange_size_opt |
---|
[679e644] | 2120 | // A semantic check is required to ensure bit_subrange only appears on integral types. |
---|
[4d51835] | 2121 | { $$ = $1->addBitfield( $2 ); } |
---|
[c6b1105] | 2122 | | variable_type_redeclarator bit_subrange_size_opt |
---|
[679e644] | 2123 | // A semantic check is required to ensure bit_subrange only appears on integral types. |
---|
[4d51835] | 2124 | { $$ = $1->addBitfield( $2 ); } |
---|
[679e644] | 2125 | ; |
---|
| 2126 | |
---|
[e07caa2] | 2127 | field_abstract_list_opt: |
---|
| 2128 | // empty |
---|
[dea36ee] | 2129 | { $$ = nullptr; } |
---|
[e07caa2] | 2130 | | field_abstract |
---|
| 2131 | | field_abstract_list_opt ',' attribute_list_opt field_abstract |
---|
[679e644] | 2132 | { $$ = $1->appendList( $4->addQualifiers( $3 ) ); } |
---|
| 2133 | ; |
---|
| 2134 | |
---|
[e07caa2] | 2135 | field_abstract: |
---|
[f7e4db27] | 2136 | // no bit fields |
---|
[e07caa2] | 2137 | variable_abstract_declarator |
---|
[679e644] | 2138 | ; |
---|
| 2139 | |
---|
| 2140 | cfa_field_declaring_list: // CFA, new style field declaration |
---|
[f7e4db27] | 2141 | // bit-fields are handled by C declarations |
---|
[033ff37] | 2142 | cfa_abstract_declarator_tuple identifier_or_type_name |
---|
[679e644] | 2143 | { $$ = $1->addName( $2 ); } |
---|
[033ff37] | 2144 | | cfa_field_declaring_list ',' identifier_or_type_name |
---|
[679e644] | 2145 | { $$ = $1->appendList( $1->cloneType( $3 ) ); } |
---|
| 2146 | ; |
---|
| 2147 | |
---|
| 2148 | cfa_field_abstract_list: // CFA, new style field declaration |
---|
[f7e4db27] | 2149 | // bit-fields are handled by C declarations |
---|
[679e644] | 2150 | cfa_abstract_declarator_tuple |
---|
| 2151 | | cfa_field_abstract_list ',' |
---|
| 2152 | { $$ = $1->appendList( $1->cloneType( 0 ) ); } |
---|
[4d51835] | 2153 | ; |
---|
[51b7345] | 2154 | |
---|
| 2155 | bit_subrange_size_opt: |
---|
[4d51835] | 2156 | // empty |
---|
[58dd019] | 2157 | { $$ = nullptr; } |
---|
[4d51835] | 2158 | | bit_subrange_size |
---|
| 2159 | ; |
---|
[51b7345] | 2160 | |
---|
| 2161 | bit_subrange_size: |
---|
[c786e1d] | 2162 | ':' assignment_expression |
---|
[4d51835] | 2163 | { $$ = $2; } |
---|
| 2164 | ; |
---|
[51b7345] | 2165 | |
---|
[d0ffed1] | 2166 | enum_type: // enum |
---|
[c0aa336] | 2167 | ENUM attribute_list_opt '{' enumerator_list comma_opt '}' |
---|
[3d7e53b] | 2168 | { $$ = DeclarationNode::newEnum( nullptr, $4, true )->addQualifiers( $2 ); } |
---|
[033ff37] | 2169 | | ENUM attribute_list_opt identifier |
---|
[d0ffed1] | 2170 | { typedefTable.makeTypedef( *$3 ); } |
---|
| 2171 | '{' enumerator_list comma_opt '}' |
---|
| 2172 | { $$ = DeclarationNode::newEnum( $3, $6, true )->addQualifiers( $2 ); } |
---|
[407bde5] | 2173 | | ENUM attribute_list_opt type_name |
---|
| 2174 | '{' enumerator_list comma_opt '}' |
---|
| 2175 | { $$ = DeclarationNode::newEnum( $3->type->symbolic.name, $5, true )->addQualifiers( $2 ); } |
---|
[d0ffed1] | 2176 | | enum_type_nobody |
---|
| 2177 | ; |
---|
| 2178 | |
---|
| 2179 | enum_type_nobody: // enum - {...} |
---|
[033ff37] | 2180 | ENUM attribute_list_opt identifier |
---|
[45161b4d] | 2181 | { |
---|
[c0aa336] | 2182 | typedefTable.makeTypedef( *$3 ); |
---|
[ca1a547] | 2183 | $$ = DeclarationNode::newEnum( $3, 0, false )->addQualifiers( $2 ); |
---|
[45161b4d] | 2184 | } |
---|
[407bde5] | 2185 | | ENUM attribute_list_opt type_name |
---|
| 2186 | { |
---|
| 2187 | typedefTable.makeTypedef( *$3->type->symbolic.name ); |
---|
| 2188 | $$ = DeclarationNode::newEnum( $3->type->symbolic.name, 0, false )->addQualifiers( $2 ); |
---|
| 2189 | } |
---|
[4d51835] | 2190 | ; |
---|
[51b7345] | 2191 | |
---|
| 2192 | enumerator_list: |
---|
[033ff37] | 2193 | identifier_or_type_name enumerator_value_opt |
---|
[4d51835] | 2194 | { $$ = DeclarationNode::newEnumConstant( $1, $2 ); } |
---|
[033ff37] | 2195 | | enumerator_list ',' identifier_or_type_name enumerator_value_opt |
---|
[4d51835] | 2196 | { $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); } |
---|
| 2197 | ; |
---|
[51b7345] | 2198 | |
---|
| 2199 | enumerator_value_opt: |
---|
[4d51835] | 2200 | // empty |
---|
[58dd019] | 2201 | { $$ = nullptr; } |
---|
[4d51835] | 2202 | | '=' constant_expression |
---|
| 2203 | { $$ = $2; } |
---|
| 2204 | ; |
---|
[51b7345] | 2205 | |
---|
[40de461] | 2206 | cfa_parameter_ellipsis_list_opt: // CFA, abstract + real |
---|
[4d51835] | 2207 | // empty |
---|
[2a8427c6] | 2208 | { $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); } |
---|
| 2209 | | ELLIPSIS |
---|
[58dd019] | 2210 | { $$ = nullptr; } |
---|
[2a8427c6] | 2211 | | cfa_abstract_parameter_list |
---|
[c0aa336] | 2212 | | cfa_parameter_list |
---|
[c0a33d2] | 2213 | | cfa_parameter_list pop ',' push cfa_abstract_parameter_list |
---|
| 2214 | { $$ = $1->appendList( $5 ); } |
---|
| 2215 | | cfa_abstract_parameter_list pop ',' push ELLIPSIS |
---|
[4d51835] | 2216 | { $$ = $1->addVarArgs(); } |
---|
[c0a33d2] | 2217 | | cfa_parameter_list pop ',' push ELLIPSIS |
---|
[4d51835] | 2218 | { $$ = $1->addVarArgs(); } |
---|
| 2219 | ; |
---|
[b87a5ed] | 2220 | |
---|
[c0aa336] | 2221 | cfa_parameter_list: // CFA |
---|
| 2222 | // To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is |
---|
| 2223 | // factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'. |
---|
| 2224 | cfa_parameter_declaration |
---|
[c0a33d2] | 2225 | | cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration |
---|
| 2226 | { $$ = $1->appendList( $5 ); } |
---|
| 2227 | | cfa_parameter_list pop ',' push cfa_parameter_declaration |
---|
| 2228 | { $$ = $1->appendList( $5 ); } |
---|
| 2229 | | cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration |
---|
| 2230 | { $$ = $1->appendList( $5 )->appendList( $9 ); } |
---|
[4d51835] | 2231 | ; |
---|
[b87a5ed] | 2232 | |
---|
[c0aa336] | 2233 | cfa_abstract_parameter_list: // CFA, new & old style abstract |
---|
| 2234 | cfa_abstract_parameter_declaration |
---|
[c0a33d2] | 2235 | | cfa_abstract_parameter_list pop ',' push cfa_abstract_parameter_declaration |
---|
| 2236 | { $$ = $1->appendList( $5 ); } |
---|
[4d51835] | 2237 | ; |
---|
[51b7345] | 2238 | |
---|
| 2239 | parameter_type_list_opt: |
---|
[4d51835] | 2240 | // empty |
---|
[58dd019] | 2241 | { $$ = nullptr; } |
---|
[2a8427c6] | 2242 | | ELLIPSIS |
---|
| 2243 | { $$ = nullptr; } |
---|
| 2244 | | parameter_list |
---|
[4d51835] | 2245 | | parameter_list pop ',' push ELLIPSIS |
---|
| 2246 | { $$ = $1->addVarArgs(); } |
---|
| 2247 | ; |
---|
[b87a5ed] | 2248 | |
---|
| 2249 | parameter_list: // abstract + real |
---|
[4d51835] | 2250 | abstract_parameter_declaration |
---|
| 2251 | | parameter_declaration |
---|
| 2252 | | parameter_list pop ',' push abstract_parameter_declaration |
---|
| 2253 | { $$ = $1->appendList( $5 ); } |
---|
| 2254 | | parameter_list pop ',' push parameter_declaration |
---|
| 2255 | { $$ = $1->appendList( $5 ); } |
---|
| 2256 | ; |
---|
[51b7345] | 2257 | |
---|
[de62360d] | 2258 | // Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics |
---|
[2871210] | 2259 | // for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes. |
---|
[51b7345] | 2260 | |
---|
[c0aa336] | 2261 | cfa_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 2262 | parameter_declaration |
---|
[994d080] | 2263 | | cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initialize_opt |
---|
[4d51835] | 2264 | { $$ = $1->addName( $2 ); } |
---|
[994d080] | 2265 | | cfa_abstract_tuple identifier_or_type_name default_initialize_opt |
---|
[c0aa336] | 2266 | // To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator). |
---|
[4d51835] | 2267 | { $$ = $1->addName( $2 ); } |
---|
[994d080] | 2268 | | type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initialize_opt |
---|
[4d51835] | 2269 | { $$ = $2->addName( $3 )->addQualifiers( $1 ); } |
---|
[c0aa336] | 2270 | | cfa_function_specifier |
---|
[4d51835] | 2271 | ; |
---|
[b87a5ed] | 2272 | |
---|
[c0aa336] | 2273 | cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration |
---|
[4d51835] | 2274 | abstract_parameter_declaration |
---|
[c0aa336] | 2275 | | cfa_identifier_parameter_declarator_no_tuple |
---|
| 2276 | | cfa_abstract_tuple |
---|
| 2277 | // To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator). |
---|
| 2278 | | type_qualifier_list cfa_abstract_tuple |
---|
[4d51835] | 2279 | { $$ = $2->addQualifiers( $1 ); } |
---|
[c0aa336] | 2280 | | cfa_abstract_function |
---|
[4d51835] | 2281 | ; |
---|
[51b7345] | 2282 | |
---|
| 2283 | parameter_declaration: |
---|
[d0ffed1] | 2284 | // No SUE declaration in parameter list. |
---|
[994d080] | 2285 | declaration_specifier_nobody identifier_parameter_declarator default_initialize_opt |
---|
[7fdb94e] | 2286 | { $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); } |
---|
[994d080] | 2287 | | declaration_specifier_nobody type_parameter_redeclarator default_initialize_opt |
---|
[7fdb94e] | 2288 | { $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); } |
---|
[4d51835] | 2289 | ; |
---|
[51b7345] | 2290 | |
---|
| 2291 | abstract_parameter_declaration: |
---|
[994d080] | 2292 | declaration_specifier_nobody default_initialize_opt |
---|
[e7cc8cb] | 2293 | { $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); } |
---|
[994d080] | 2294 | | declaration_specifier_nobody abstract_parameter_declarator default_initialize_opt |
---|
[e7cc8cb] | 2295 | { $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); } |
---|
[4d51835] | 2296 | ; |
---|
[51b7345] | 2297 | |
---|
[c11e31c] | 2298 | // ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a |
---|
[de62360d] | 2299 | // parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on |
---|
| 2300 | // identifiers. The ANSI-style parameter-list can redefine a typedef name. |
---|
[51b7345] | 2301 | |
---|
[b87a5ed] | 2302 | identifier_list: // K&R-style parameter list => no types |
---|
[033ff37] | 2303 | identifier |
---|
[4d51835] | 2304 | { $$ = DeclarationNode::newName( $1 ); } |
---|
[033ff37] | 2305 | | identifier_list ',' identifier |
---|
[4d51835] | 2306 | { $$ = $1->appendList( DeclarationNode::newName( $3 ) ); } |
---|
| 2307 | ; |
---|
[51b7345] | 2308 | |
---|
[2871210] | 2309 | identifier_or_type_name: |
---|
[4d51835] | 2310 | identifier |
---|
| 2311 | | TYPEDEFname |
---|
| 2312 | | TYPEGENname |
---|
| 2313 | ; |
---|
[51b7345] | 2314 | |
---|
[84d58c5] | 2315 | type_no_function: // sizeof, alignof, cast (constructor) |
---|
[c0aa336] | 2316 | cfa_abstract_declarator_tuple // CFA |
---|
[4d51835] | 2317 | | type_specifier |
---|
[c0aa336] | 2318 | | type_specifier abstract_declarator |
---|
[4d51835] | 2319 | { $$ = $2->addType( $1 ); } |
---|
| 2320 | ; |
---|
[b87a5ed] | 2321 | |
---|
[84d58c5] | 2322 | type: // typeof, assertion |
---|
| 2323 | type_no_function |
---|
[c0aa336] | 2324 | | cfa_abstract_function // CFA |
---|
[4d51835] | 2325 | ; |
---|
[51b7345] | 2326 | |
---|
| 2327 | initializer_opt: |
---|
[4d51835] | 2328 | // empty |
---|
[58dd019] | 2329 | { $$ = nullptr; } |
---|
[2871210] | 2330 | | '=' initializer |
---|
| 2331 | { $$ = $2; } |
---|
[641c3d0] | 2332 | | '=' VOID |
---|
[3ed994e] | 2333 | { $$ = new InitializerNode( true ); } |
---|
[097e2b0] | 2334 | | ATassign initializer |
---|
[974906e2] | 2335 | { $$ = $2->set_maybeConstructed( false ); } |
---|
[4d51835] | 2336 | ; |
---|
[51b7345] | 2337 | |
---|
| 2338 | initializer: |
---|
[de62360d] | 2339 | assignment_expression { $$ = new InitializerNode( $1 ); } |
---|
[7fdb94e] | 2340 | | '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); } |
---|
[4d51835] | 2341 | ; |
---|
[51b7345] | 2342 | |
---|
[7fdb94e] | 2343 | initializer_list_opt: |
---|
[097e2b0] | 2344 | // empty |
---|
[58dd019] | 2345 | { $$ = nullptr; } |
---|
[097e2b0] | 2346 | | initializer |
---|
[4d51835] | 2347 | | designation initializer { $$ = $2->set_designators( $1 ); } |
---|
[7fdb94e] | 2348 | | initializer_list_opt ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); } |
---|
| 2349 | | initializer_list_opt ',' designation initializer |
---|
[1d4580a] | 2350 | { $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); } |
---|
[4d51835] | 2351 | ; |
---|
[b87a5ed] | 2352 | |
---|
[de62360d] | 2353 | // There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of |
---|
| 2354 | // '=' to separator the designator from the initializer value, as in: |
---|
[c11e31c] | 2355 | // |
---|
[b87a5ed] | 2356 | // int x[10] = { [1] = 3 }; |
---|
[c11e31c] | 2357 | // |
---|
[de62360d] | 2358 | // The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA |
---|
| 2359 | // changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for |
---|
| 2360 | // field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to |
---|
| 2361 | // shift/reduce conflicts |
---|
[51b7345] | 2362 | |
---|
| 2363 | designation: |
---|
[4d51835] | 2364 | designator_list ':' // C99, CFA uses ":" instead of "=" |
---|
[033ff37] | 2365 | | identifier ':' // GCC, field name |
---|
[d1625f8] | 2366 | { $$ = new ExpressionNode( build_varref( $1 ) ); } |
---|
[4d51835] | 2367 | ; |
---|
[51b7345] | 2368 | |
---|
[b87a5ed] | 2369 | designator_list: // C99 |
---|
[4d51835] | 2370 | designator |
---|
[2871210] | 2371 | | designator_list designator |
---|
[1d4580a] | 2372 | { $$ = (ExpressionNode *)( $1->set_last( $2 ) ); } |
---|
[d1625f8] | 2373 | //| designator_list designator { $$ = new ExpressionNode( $1, $2 ); } |
---|
[4d51835] | 2374 | ; |
---|
[51b7345] | 2375 | |
---|
| 2376 | designator: |
---|
[033ff37] | 2377 | '.' identifier // C99, field name |
---|
[d1625f8] | 2378 | { $$ = new ExpressionNode( build_varref( $2 ) ); } |
---|
[c0a33d2] | 2379 | | '[' push assignment_expression pop ']' // C99, single array element |
---|
[de62360d] | 2380 | // assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple. |
---|
[d1625f8] | 2381 | { $$ = $3; } |
---|
[c0a33d2] | 2382 | | '[' push subrange pop ']' // CFA, multiple array elements |
---|
| 2383 | { $$ = $3; } |
---|
| 2384 | | '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements |
---|
| 2385 | { $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $3 ), maybeMoveBuild< Expression >( $5 ) ) ); } |
---|
[679e644] | 2386 | | '.' '[' push field_name_list pop ']' // CFA, tuple field selector |
---|
[c0a33d2] | 2387 | { $$ = $4; } |
---|
[4d51835] | 2388 | ; |
---|
[51b7345] | 2389 | |
---|
[de62360d] | 2390 | // The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters, |
---|
| 2391 | // rather than an object-oriented type system. This required four groups of extensions: |
---|
[c11e31c] | 2392 | // |
---|
| 2393 | // Overloading: function, data, and operator identifiers may be overloaded. |
---|
| 2394 | // |
---|
[de62360d] | 2395 | // Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object |
---|
| 2396 | // and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide |
---|
| 2397 | // definitions of new types. Type declarations with storage class "extern" provide opaque types. |
---|
[c11e31c] | 2398 | // |
---|
[de62360d] | 2399 | // Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call |
---|
| 2400 | // site. A polymorphic function is not a template; it is a function, with an address and a type. |
---|
[c11e31c] | 2401 | // |
---|
| 2402 | // Specifications and Assertions: Specifications are collections of declarations parameterized by one or more |
---|
[de62360d] | 2403 | // types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass |
---|
| 2404 | // hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or |
---|
| 2405 | // types provide the operations declared by a specification. Assertions are normally used to declare requirements |
---|
| 2406 | // on type arguments of polymorphic functions. |
---|
[c11e31c] | 2407 | |
---|
[b87a5ed] | 2408 | type_parameter_list: // CFA |
---|
[67cf18c] | 2409 | type_parameter |
---|
| 2410 | | type_parameter_list ',' type_parameter |
---|
[4d51835] | 2411 | { $$ = $1->appendList( $3 ); } |
---|
| 2412 | ; |
---|
[b87a5ed] | 2413 | |
---|
[84d58c5] | 2414 | type_initializer_opt: // CFA |
---|
| 2415 | // empty |
---|
| 2416 | { $$ = nullptr; } |
---|
| 2417 | | '=' type |
---|
| 2418 | { $$ = $2; } |
---|
| 2419 | ; |
---|
| 2420 | |
---|
[b87a5ed] | 2421 | type_parameter: // CFA |
---|
[033ff37] | 2422 | type_class identifier_or_type_name |
---|
[ecae5860] | 2423 | { typedefTable.addToScope( *$2, TYPEDEFname, "9" ); } |
---|
[67cf18c] | 2424 | type_initializer_opt assertion_list_opt |
---|
| 2425 | { $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); } |
---|
[4d51835] | 2426 | | type_specifier identifier_parameter_declarator |
---|
[9997fee] | 2427 | | assertion_list |
---|
| 2428 | { $$ = DeclarationNode::newTypeParam( DeclarationNode::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); } |
---|
[4d51835] | 2429 | ; |
---|
[b87a5ed] | 2430 | |
---|
| 2431 | type_class: // CFA |
---|
[4040425] | 2432 | OTYPE |
---|
[5b639ee] | 2433 | { $$ = DeclarationNode::Otype; } |
---|
[4d51835] | 2434 | | DTYPE |
---|
| 2435 | { $$ = DeclarationNode::Dtype; } |
---|
[8f60f0b] | 2436 | | FTYPE |
---|
| 2437 | { $$ = DeclarationNode::Ftype; } |
---|
| 2438 | | TTYPE |
---|
| 2439 | { $$ = DeclarationNode::Ttype; } |
---|
[4d51835] | 2440 | ; |
---|
[b87a5ed] | 2441 | |
---|
| 2442 | assertion_list_opt: // CFA |
---|
[4d51835] | 2443 | // empty |
---|
[58dd019] | 2444 | { $$ = nullptr; } |
---|
[9997fee] | 2445 | | assertion_list |
---|
| 2446 | ; |
---|
| 2447 | |
---|
| 2448 | assertion_list: // CFA |
---|
| 2449 | assertion |
---|
| 2450 | | assertion_list assertion |
---|
[a7741435] | 2451 | { $$ = $1 ? $1->appendList( $2 ) : $2; } |
---|
[4d51835] | 2452 | ; |
---|
[b87a5ed] | 2453 | |
---|
| 2454 | assertion: // CFA |
---|
[033ff37] | 2455 | '|' identifier_or_type_name '(' type_list ')' |
---|
[7fdb94e] | 2456 | { $$ = DeclarationNode::newTraitUse( $2, $4 ); } |
---|
[13e8427] | 2457 | | '|' '{' push trait_declaration_list pop '}' |
---|
[4d51835] | 2458 | { $$ = $4; } |
---|
[35718a9] | 2459 | // | '|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')' |
---|
| 2460 | // { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; } |
---|
[4d51835] | 2461 | ; |
---|
[b87a5ed] | 2462 | |
---|
[84d58c5] | 2463 | type_list: // CFA |
---|
| 2464 | type |
---|
[513e165] | 2465 | { $$ = new ExpressionNode( new TypeExpr( maybeMoveBuildType( $1 ) ) ); } |
---|
[4d51835] | 2466 | | assignment_expression |
---|
[3007c0b] | 2467 | { SemanticError( yylloc, toString("Expression generic parameters are currently unimplemented: ", $1->build()) ); $$ = nullptr; } |
---|
[84d58c5] | 2468 | | type_list ',' type |
---|
[513e165] | 2469 | { $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ) ) ); } |
---|
[84d58c5] | 2470 | | type_list ',' assignment_expression |
---|
[3007c0b] | 2471 | { SemanticError( yylloc, toString("Expression generic parameters are currently unimplemented: ", $3->build()) ); $$ = nullptr; } |
---|
| 2472 | // { $$ = (ExpressionNode *)( $1->set_last( $3 )); } |
---|
[4d51835] | 2473 | ; |
---|
[b87a5ed] | 2474 | |
---|
| 2475 | type_declaring_list: // CFA |
---|
[4040425] | 2476 | OTYPE type_declarator |
---|
[4d51835] | 2477 | { $$ = $2; } |
---|
[4040425] | 2478 | | storage_class_list OTYPE type_declarator |
---|
[4d51835] | 2479 | { $$ = $3->addQualifiers( $1 ); } |
---|
| 2480 | | type_declaring_list ',' type_declarator |
---|
[a7c90d4] | 2481 | { $$ = $1->appendList( $3->copySpecifiers( $1 ) ); } |
---|
[4d51835] | 2482 | ; |
---|
[b87a5ed] | 2483 | |
---|
| 2484 | type_declarator: // CFA |
---|
[4d51835] | 2485 | type_declarator_name assertion_list_opt |
---|
| 2486 | { $$ = $1->addAssertions( $2 ); } |
---|
[84d58c5] | 2487 | | type_declarator_name assertion_list_opt '=' type |
---|
[4d51835] | 2488 | { $$ = $1->addAssertions( $2 )->addType( $4 ); } |
---|
| 2489 | ; |
---|
[b87a5ed] | 2490 | |
---|
| 2491 | type_declarator_name: // CFA |
---|
[033ff37] | 2492 | identifier_or_type_name |
---|
[4d51835] | 2493 | { |
---|
[ecae5860] | 2494 | typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "10" ); |
---|
[4d51835] | 2495 | $$ = DeclarationNode::newTypeDecl( $1, 0 ); |
---|
| 2496 | } |
---|
[033ff37] | 2497 | | identifier_or_type_name '(' type_parameter_list ')' |
---|
[4d51835] | 2498 | { |
---|
[ecae5860] | 2499 | typedefTable.addToEnclosingScope( *$1, TYPEGENname, "11" ); |
---|
[35718a9] | 2500 | $$ = DeclarationNode::newTypeDecl( $1, $3 ); |
---|
[4d51835] | 2501 | } |
---|
| 2502 | ; |
---|
[b87a5ed] | 2503 | |
---|
[4040425] | 2504 | trait_specifier: // CFA |
---|
[033ff37] | 2505 | TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}' |
---|
[35718a9] | 2506 | { $$ = DeclarationNode::newTrait( $2, $4, 0 ); } |
---|
[033ff37] | 2507 | | TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' push trait_declaration_list pop '}' |
---|
[35718a9] | 2508 | { $$ = DeclarationNode::newTrait( $2, $4, $8 ); } |
---|
[4d51835] | 2509 | ; |
---|
[b87a5ed] | 2510 | |
---|
[84d58c5] | 2511 | trait_declaration_list: // CFA |
---|
[4040425] | 2512 | trait_declaration |
---|
[13e8427] | 2513 | | trait_declaration_list pop push trait_declaration |
---|
| 2514 | { $$ = $1->appendList( $4 ); } |
---|
[4d51835] | 2515 | ; |
---|
[b87a5ed] | 2516 | |
---|
[84d58c5] | 2517 | trait_declaration: // CFA |
---|
[13e8427] | 2518 | cfa_trait_declaring_list ';' |
---|
| 2519 | | trait_declaring_list ';' |
---|
[4d51835] | 2520 | ; |
---|
[b87a5ed] | 2521 | |
---|
[c0aa336] | 2522 | cfa_trait_declaring_list: // CFA |
---|
| 2523 | cfa_variable_specifier |
---|
| 2524 | | cfa_function_specifier |
---|
| 2525 | | cfa_trait_declaring_list pop ',' push identifier_or_type_name |
---|
[7fdb94e] | 2526 | { $$ = $1->appendList( $1->cloneType( $5 ) ); } |
---|
[4d51835] | 2527 | ; |
---|
[b87a5ed] | 2528 | |
---|
[4040425] | 2529 | trait_declaring_list: // CFA |
---|
[4d51835] | 2530 | type_specifier declarator |
---|
[7fdb94e] | 2531 | { $$ = $2->addType( $1 ); } |
---|
[4040425] | 2532 | | trait_declaring_list pop ',' push declarator |
---|
[7fdb94e] | 2533 | { $$ = $1->appendList( $1->cloneBaseType( $5 ) ); } |
---|
[4d51835] | 2534 | ; |
---|
[51b7345] | 2535 | |
---|
[c11e31c] | 2536 | //***************************** EXTERNAL DEFINITIONS ***************************** |
---|
[51b7345] | 2537 | |
---|
| 2538 | translation_unit: |
---|
[3d56d15b] | 2539 | // empty, input file |
---|
[4d51835] | 2540 | | external_definition_list |
---|
[a7741435] | 2541 | { parseTree = parseTree ? parseTree->appendList( $1 ) : $1; } |
---|
[4d51835] | 2542 | ; |
---|
[51b7345] | 2543 | |
---|
| 2544 | external_definition_list: |
---|
[35718a9] | 2545 | push external_definition pop |
---|
| 2546 | { $$ = $2; } |
---|
[fc20514] | 2547 | | external_definition_list push external_definition pop |
---|
| 2548 | { $$ = $1 ? $1->appendList( $3 ) : $3; } |
---|
[4d51835] | 2549 | ; |
---|
[51b7345] | 2550 | |
---|
| 2551 | external_definition_list_opt: |
---|
[4d51835] | 2552 | // empty |
---|
[58dd019] | 2553 | { $$ = nullptr; } |
---|
[3d56d15b] | 2554 | | external_definition_list |
---|
| 2555 | ; |
---|
| 2556 | |
---|
| 2557 | up: |
---|
[fc20514] | 2558 | { typedefTable.up( forall ); forall = false; } |
---|
[3d56d15b] | 2559 | ; |
---|
| 2560 | |
---|
| 2561 | down: |
---|
| 2562 | { typedefTable.down(); } |
---|
[4d51835] | 2563 | ; |
---|
[51b7345] | 2564 | |
---|
| 2565 | external_definition: |
---|
[4d51835] | 2566 | declaration |
---|
| 2567 | | external_function_definition |
---|
[ecae5860] | 2568 | | EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown |
---|
| 2569 | { |
---|
| 2570 | distExt( $2 ); // mark all fields in list |
---|
| 2571 | $$ = $2; |
---|
| 2572 | } |
---|
[e994912] | 2573 | | ASM '(' string_literal ')' ';' // GCC, global assembler statement |
---|
| 2574 | { |
---|
[6d539f83] | 2575 | $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( false, $3, 0 ) ) ); |
---|
[e994912] | 2576 | } |
---|
[c0aa336] | 2577 | | EXTERN STRINGliteral // C++-style linkage specifier |
---|
[4d51835] | 2578 | { |
---|
[3b8e52c] | 2579 | linkageStack.push( linkage ); // handle nested extern "C"/"Cforall" |
---|
[d55d7a6] | 2580 | linkage = LinkageSpec::linkageUpdate( yylloc, linkage, $2 ); |
---|
[4d51835] | 2581 | } |
---|
[3d56d15b] | 2582 | '{' up external_definition_list_opt down '}' |
---|
[4d51835] | 2583 | { |
---|
| 2584 | linkage = linkageStack.top(); |
---|
| 2585 | linkageStack.pop(); |
---|
[3d56d15b] | 2586 | $$ = $6; |
---|
[8e9cbb2] | 2587 | } |
---|
[9997fee] | 2588 | | type_qualifier_list |
---|
| 2589 | { |
---|
[3d56d15b] | 2590 | if ( $1->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); } |
---|
[fc20514] | 2591 | if ( $1->type->forall ) forall = true; // remember generic type |
---|
[3d56d15b] | 2592 | } |
---|
| 2593 | '{' up external_definition_list_opt down '}' // CFA, namespace |
---|
| 2594 | { |
---|
[4c3ee8d] | 2595 | distQual( $5, $1 ); |
---|
[fc20514] | 2596 | forall = false; |
---|
[3d56d15b] | 2597 | $$ = $5; |
---|
[9997fee] | 2598 | } |
---|
| 2599 | | declaration_qualifier_list |
---|
| 2600 | { |
---|
[4c3ee8d] | 2601 | if ( $1->type && $1->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); } |
---|
[fc20514] | 2602 | if ( $1->type && $1->type->forall ) forall = true; // remember generic type |
---|
[3d56d15b] | 2603 | } |
---|
| 2604 | '{' up external_definition_list_opt down '}' // CFA, namespace |
---|
| 2605 | { |
---|
[4c3ee8d] | 2606 | distQual( $5, $1 ); |
---|
[fc20514] | 2607 | forall = false; |
---|
[3d56d15b] | 2608 | $$ = $5; |
---|
[9997fee] | 2609 | } |
---|
| 2610 | | declaration_qualifier_list type_qualifier_list |
---|
| 2611 | { |
---|
[3d56d15b] | 2612 | if ( ($1->type && $1->type->qualifiers.val) || $2->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); } |
---|
[fc20514] | 2613 | if ( ($1->type && $1->type->forall) || $2->type->forall ) forall = true; // remember generic type |
---|
[9997fee] | 2614 | } |
---|
[3d56d15b] | 2615 | '{' up external_definition_list_opt down '}' // CFA, namespace |
---|
[9997fee] | 2616 | { |
---|
[284da8c] | 2617 | distQual( $6, $1->addQualifiers( $2 ) ); |
---|
[fc20514] | 2618 | forall = false; |
---|
[3d56d15b] | 2619 | $$ = $6; |
---|
[9997fee] | 2620 | } |
---|
[4d51835] | 2621 | ; |
---|
| 2622 | |
---|
| 2623 | external_function_definition: |
---|
| 2624 | function_definition |
---|
[de62360d] | 2625 | // These rules are a concession to the "implicit int" type_specifier because there is a significant amount of |
---|
[c6b1105] | 2626 | // legacy code with global functions missing the type-specifier for the return type, and assuming "int". |
---|
| 2627 | // Parsing is possible because function_definition does not appear in the context of an expression (nested |
---|
| 2628 | // functions preclude this concession, i.e., all nested function must have a return type). A function prototype |
---|
| 2629 | // declaration must still have a type_specifier. OBSOLESCENT (see 1) |
---|
[4d51835] | 2630 | | function_declarator compound_statement |
---|
[c0a33d2] | 2631 | { $$ = $1->addFunctionBody( $2 ); } |
---|
[35718a9] | 2632 | | KR_function_declarator KR_parameter_list_opt compound_statement |
---|
[c0a33d2] | 2633 | { $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); } |
---|
[4d51835] | 2634 | ; |
---|
[51b7345] | 2635 | |
---|
[8b47e50] | 2636 | with_clause_opt: |
---|
| 2637 | // empty |
---|
[9997fee] | 2638 | { $$ = nullptr; forall = false; } |
---|
[578e6037] | 2639 | | WITH '(' tuple_expression_list ')' |
---|
[9997fee] | 2640 | { $$ = $3; forall = false; } |
---|
[8b47e50] | 2641 | ; |
---|
| 2642 | |
---|
[51b7345] | 2643 | function_definition: |
---|
[8b47e50] | 2644 | cfa_function_declaration with_clause_opt compound_statement // CFA |
---|
[4d51835] | 2645 | { |
---|
[481115f] | 2646 | // Add the function body to the last identifier in the function definition list, i.e., foo3: |
---|
| 2647 | // [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; } |
---|
[5fcba14] | 2648 | $1->get_last()->addFunctionBody( $3, $2 ); |
---|
[481115f] | 2649 | $$ = $1; |
---|
[4d51835] | 2650 | } |
---|
[8b47e50] | 2651 | | declaration_specifier function_declarator with_clause_opt compound_statement |
---|
[4d51835] | 2652 | { |
---|
[c38ae92] | 2653 | rebindForall( $1, $2 ); |
---|
[7fdb94e] | 2654 | $$ = $2->addFunctionBody( $4, $3 )->addType( $1 ); |
---|
| 2655 | } |
---|
| 2656 | | declaration_specifier variable_type_redeclarator with_clause_opt compound_statement |
---|
| 2657 | { |
---|
| 2658 | rebindForall( $1, $2 ); |
---|
[5fcba14] | 2659 | $$ = $2->addFunctionBody( $4, $3 )->addType( $1 ); |
---|
[4d51835] | 2660 | } |
---|
[a16a7ec] | 2661 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[8b47e50] | 2662 | | type_qualifier_list function_declarator with_clause_opt compound_statement |
---|
[c0a33d2] | 2663 | { $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); } |
---|
[a16a7ec] | 2664 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[8b47e50] | 2665 | | declaration_qualifier_list function_declarator with_clause_opt compound_statement |
---|
[c0a33d2] | 2666 | { $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); } |
---|
[a16a7ec] | 2667 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[8b47e50] | 2668 | | declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement |
---|
[c0a33d2] | 2669 | { $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); } |
---|
[4d51835] | 2670 | |
---|
| 2671 | // Old-style K&R function definition, OBSOLESCENT (see 4) |
---|
[35718a9] | 2672 | | declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement |
---|
[4d51835] | 2673 | { |
---|
[c38ae92] | 2674 | rebindForall( $1, $2 ); |
---|
[5fcba14] | 2675 | $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 ); |
---|
[4d51835] | 2676 | } |
---|
[a16a7ec] | 2677 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[35718a9] | 2678 | | type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement |
---|
[c0a33d2] | 2679 | { $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); } |
---|
[a16a7ec] | 2680 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[35718a9] | 2681 | | declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement |
---|
[c0a33d2] | 2682 | { $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); } |
---|
[a16a7ec] | 2683 | // handles default int return type, OBSOLESCENT (see 1) |
---|
[35718a9] | 2684 | | declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement |
---|
[c0a33d2] | 2685 | { $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); } |
---|
[4d51835] | 2686 | ; |
---|
[51b7345] | 2687 | |
---|
| 2688 | declarator: |
---|
[4d51835] | 2689 | variable_declarator |
---|
[c6b1105] | 2690 | | variable_type_redeclarator |
---|
[4d51835] | 2691 | | function_declarator |
---|
| 2692 | ; |
---|
[51b7345] | 2693 | |
---|
| 2694 | subrange: |
---|
[4d51835] | 2695 | constant_expression '~' constant_expression // CFA, integer subrange |
---|
[db70fe4] | 2696 | { $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); } |
---|
[4d51835] | 2697 | ; |
---|
[b87a5ed] | 2698 | |
---|
| 2699 | asm_name_opt: // GCC |
---|
[4d51835] | 2700 | // empty |
---|
[58dd019] | 2701 | { $$ = nullptr; } |
---|
| 2702 | | ASM '(' string_literal ')' attribute_list_opt |
---|
[c0aa336] | 2703 | { |
---|
| 2704 | DeclarationNode * name = new DeclarationNode(); |
---|
| 2705 | name->asmName = $3; |
---|
| 2706 | $$ = name->addQualifiers( $5 ); |
---|
| 2707 | } |
---|
[4d51835] | 2708 | ; |
---|
[b87a5ed] | 2709 | |
---|
| 2710 | attribute_list_opt: // GCC |
---|
[4d51835] | 2711 | // empty |
---|
[58dd019] | 2712 | { $$ = nullptr; } |
---|
[4d51835] | 2713 | | attribute_list |
---|
| 2714 | ; |
---|
[b87a5ed] | 2715 | |
---|
| 2716 | attribute_list: // GCC |
---|
[4d51835] | 2717 | attribute |
---|
| 2718 | | attribute_list attribute |
---|
[1db21619] | 2719 | { $$ = $2->addQualifiers( $1 ); } |
---|
[4d51835] | 2720 | ; |
---|
[b87a5ed] | 2721 | |
---|
| 2722 | attribute: // GCC |
---|
[44a81853] | 2723 | ATTRIBUTE '(' '(' attribute_name_list ')' ')' |
---|
| 2724 | { $$ = $4; } |
---|
[4d51835] | 2725 | ; |
---|
[b87a5ed] | 2726 | |
---|
[44a81853] | 2727 | attribute_name_list: // GCC |
---|
| 2728 | attribute_name |
---|
| 2729 | | attribute_name_list ',' attribute_name |
---|
[c0aa336] | 2730 | { $$ = $3->addQualifiers( $1 ); } |
---|
[4d51835] | 2731 | ; |
---|
[b87a5ed] | 2732 | |
---|
[44a81853] | 2733 | attribute_name: // GCC |
---|
[4d51835] | 2734 | // empty |
---|
[44a81853] | 2735 | { $$ = nullptr; } |
---|
| 2736 | | attr_name |
---|
| 2737 | { $$ = DeclarationNode::newAttribute( $1 ); } |
---|
| 2738 | | attr_name '(' argument_expression_list ')' |
---|
| 2739 | { $$ = DeclarationNode::newAttribute( $1, $3 ); } |
---|
[4d51835] | 2740 | ; |
---|
[b87a5ed] | 2741 | |
---|
[44a81853] | 2742 | attr_name: // GCC |
---|
| 2743 | IDENTIFIER |
---|
[5b2edbc] | 2744 | | quasi_keyword |
---|
[44a81853] | 2745 | | TYPEDEFname |
---|
| 2746 | | TYPEGENname |
---|
[114014c] | 2747 | | FALLTHROUGH |
---|
| 2748 | { $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; } |
---|
[44a81853] | 2749 | | CONST |
---|
[9ff56e7] | 2750 | { $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; } |
---|
[4d51835] | 2751 | ; |
---|
[51b7345] | 2752 | |
---|
[c11e31c] | 2753 | // ============================================================================ |
---|
[de62360d] | 2754 | // The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary |
---|
| 2755 | // because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as |
---|
| 2756 | // in: |
---|
[c11e31c] | 2757 | // |
---|
[b87a5ed] | 2758 | // int (*f())[10] { ... }; |
---|
| 2759 | // ... (*f())[3] += 1; // definition mimics usage |
---|
[c11e31c] | 2760 | // |
---|
[de62360d] | 2761 | // Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of |
---|
| 2762 | // the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context. |
---|
[c11e31c] | 2763 | // ============================================================================ |
---|
| 2764 | |
---|
| 2765 | // ---------------------------------------------------------------------------- |
---|
[de62360d] | 2766 | // The set of valid declarators before a compound statement for defining a function is less than the set of declarators |
---|
| 2767 | // to define a variable or function prototype, e.g.: |
---|
[c11e31c] | 2768 | // |
---|
[b87a5ed] | 2769 | // valid declaration invalid definition |
---|
| 2770 | // ----------------- ------------------ |
---|
[4d51835] | 2771 | // int f; int f {} |
---|
| 2772 | // int *f; int *f {} |
---|
[b87a5ed] | 2773 | // int f[10]; int f[10] {} |
---|
[4d51835] | 2774 | // int (*f)(int); int (*f)(int) {} |
---|
[c11e31c] | 2775 | // |
---|
[de62360d] | 2776 | // To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence |
---|
| 2777 | // variable_declarator and function_declarator. |
---|
[c11e31c] | 2778 | // ---------------------------------------------------------------------------- |
---|
| 2779 | |
---|
[de62360d] | 2780 | // This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes |
---|
| 2781 | // declaring an array of functions versus a pointer to an array of functions. |
---|
[51b7345] | 2782 | |
---|
| 2783 | variable_declarator: |
---|
[4d51835] | 2784 | paren_identifier attribute_list_opt |
---|
[1db21619] | 2785 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2786 | | variable_ptr |
---|
| 2787 | | variable_array attribute_list_opt |
---|
[1db21619] | 2788 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2789 | | variable_function attribute_list_opt |
---|
[1db21619] | 2790 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2791 | ; |
---|
[51b7345] | 2792 | |
---|
| 2793 | paren_identifier: |
---|
[4d51835] | 2794 | identifier |
---|
[7fdb94e] | 2795 | { $$ = DeclarationNode::newName( $1 ); } |
---|
[4d51835] | 2796 | | '(' paren_identifier ')' // redundant parenthesis |
---|
| 2797 | { $$ = $2; } |
---|
| 2798 | ; |
---|
[51b7345] | 2799 | |
---|
| 2800 | variable_ptr: |
---|
[dd51906] | 2801 | ptrref_operator variable_declarator |
---|
[ce8c12f] | 2802 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 2803 | | ptrref_operator type_qualifier_list variable_declarator |
---|
[ce8c12f] | 2804 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 2805 | | '(' variable_ptr ')' attribute_list_opt |
---|
| 2806 | { $$ = $2->addQualifiers( $4 ); } // redundant parenthesis |
---|
[4d51835] | 2807 | ; |
---|
[51b7345] | 2808 | |
---|
| 2809 | variable_array: |
---|
[4d51835] | 2810 | paren_identifier array_dimension |
---|
| 2811 | { $$ = $1->addArray( $2 ); } |
---|
| 2812 | | '(' variable_ptr ')' array_dimension |
---|
| 2813 | { $$ = $2->addArray( $4 ); } |
---|
| 2814 | | '(' variable_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2815 | { $$ = $2->addArray( $4 ); } |
---|
| 2816 | | '(' variable_array ')' // redundant parenthesis |
---|
| 2817 | { $$ = $2; } |
---|
| 2818 | ; |
---|
[51b7345] | 2819 | |
---|
| 2820 | variable_function: |
---|
[4d51835] | 2821 | '(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2822 | { $$ = $2->addParamList( $6 ); } |
---|
| 2823 | | '(' variable_function ')' // redundant parenthesis |
---|
| 2824 | { $$ = $2; } |
---|
| 2825 | ; |
---|
[51b7345] | 2826 | |
---|
[c6b1105] | 2827 | // This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is |
---|
| 2828 | // no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist |
---|
| 2829 | // is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2830 | |
---|
| 2831 | function_declarator: |
---|
[4d51835] | 2832 | function_no_ptr attribute_list_opt |
---|
[1db21619] | 2833 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2834 | | function_ptr |
---|
| 2835 | | function_array attribute_list_opt |
---|
[1db21619] | 2836 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2837 | ; |
---|
[51b7345] | 2838 | |
---|
| 2839 | function_no_ptr: |
---|
[4d51835] | 2840 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 2841 | { $$ = $1->addParamList( $4 ); } |
---|
| 2842 | | '(' function_ptr ')' '(' push parameter_type_list_opt pop ')' |
---|
| 2843 | { $$ = $2->addParamList( $6 ); } |
---|
| 2844 | | '(' function_no_ptr ')' // redundant parenthesis |
---|
| 2845 | { $$ = $2; } |
---|
| 2846 | ; |
---|
[51b7345] | 2847 | |
---|
| 2848 | function_ptr: |
---|
[dd51906] | 2849 | ptrref_operator function_declarator |
---|
[ce8c12f] | 2850 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 2851 | | ptrref_operator type_qualifier_list function_declarator |
---|
[ce8c12f] | 2852 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[4d51835] | 2853 | | '(' function_ptr ')' |
---|
| 2854 | { $$ = $2; } |
---|
| 2855 | ; |
---|
[51b7345] | 2856 | |
---|
| 2857 | function_array: |
---|
[4d51835] | 2858 | '(' function_ptr ')' array_dimension |
---|
| 2859 | { $$ = $2->addArray( $4 ); } |
---|
| 2860 | | '(' function_array ')' multi_array_dimension // redundant parenthesis |
---|
| 2861 | { $$ = $2->addArray( $4 ); } |
---|
| 2862 | | '(' function_array ')' // redundant parenthesis |
---|
| 2863 | { $$ = $2; } |
---|
| 2864 | ; |
---|
[51b7345] | 2865 | |
---|
[c0aa336] | 2866 | // This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) |
---|
| 2867 | // |
---|
| 2868 | // f( a, b, c ) int a, *b, c[]; {} |
---|
| 2869 | // |
---|
| 2870 | // that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes |
---|
| 2871 | // returning arrays and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2872 | |
---|
[c0aa336] | 2873 | KR_function_declarator: |
---|
| 2874 | KR_function_no_ptr |
---|
| 2875 | | KR_function_ptr |
---|
| 2876 | | KR_function_array |
---|
[4d51835] | 2877 | ; |
---|
[51b7345] | 2878 | |
---|
[c0aa336] | 2879 | KR_function_no_ptr: |
---|
[4d51835] | 2880 | paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter |
---|
| 2881 | { $$ = $1->addIdList( $3 ); } |
---|
[c0a33d2] | 2882 | | '(' KR_function_ptr ')' '(' push parameter_type_list_opt pop ')' |
---|
| 2883 | { $$ = $2->addParamList( $6 ); } |
---|
[c0aa336] | 2884 | | '(' KR_function_no_ptr ')' // redundant parenthesis |
---|
[4d51835] | 2885 | { $$ = $2; } |
---|
| 2886 | ; |
---|
[51b7345] | 2887 | |
---|
[c0aa336] | 2888 | KR_function_ptr: |
---|
| 2889 | ptrref_operator KR_function_declarator |
---|
[ce8c12f] | 2890 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c0aa336] | 2891 | | ptrref_operator type_qualifier_list KR_function_declarator |
---|
[ce8c12f] | 2892 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 2893 | | '(' KR_function_ptr ')' |
---|
[4d51835] | 2894 | { $$ = $2; } |
---|
| 2895 | ; |
---|
[51b7345] | 2896 | |
---|
[c0aa336] | 2897 | KR_function_array: |
---|
| 2898 | '(' KR_function_ptr ')' array_dimension |
---|
[4d51835] | 2899 | { $$ = $2->addArray( $4 ); } |
---|
[c0aa336] | 2900 | | '(' KR_function_array ')' multi_array_dimension // redundant parenthesis |
---|
[4d51835] | 2901 | { $$ = $2->addArray( $4 ); } |
---|
[c0aa336] | 2902 | | '(' KR_function_array ')' // redundant parenthesis |
---|
[4d51835] | 2903 | { $$ = $2; } |
---|
| 2904 | ; |
---|
[51b7345] | 2905 | |
---|
[2871210] | 2906 | // This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.: |
---|
[c11e31c] | 2907 | // |
---|
[b87a5ed] | 2908 | // typedef int foo; |
---|
| 2909 | // { |
---|
| 2910 | // int foo; // redefine typedef name in new scope |
---|
| 2911 | // } |
---|
[c11e31c] | 2912 | // |
---|
[de62360d] | 2913 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 2914 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 2915 | |
---|
[c6b1105] | 2916 | variable_type_redeclarator: |
---|
[2871210] | 2917 | paren_type attribute_list_opt |
---|
[1db21619] | 2918 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2919 | | type_ptr |
---|
| 2920 | | type_array attribute_list_opt |
---|
[1db21619] | 2921 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 2922 | | type_function attribute_list_opt |
---|
[1db21619] | 2923 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2924 | ; |
---|
[51b7345] | 2925 | |
---|
[2871210] | 2926 | paren_type: |
---|
| 2927 | typedef |
---|
[2f0a0678] | 2928 | // hide type name in enclosing scope by variable name |
---|
[c4f68dc] | 2929 | { |
---|
| 2930 | // if ( ! typedefTable.existsCurr( *$1->name ) ) { |
---|
| 2931 | typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "ID" ); |
---|
| 2932 | // } else { |
---|
| 2933 | // SemanticError( yylloc, string("'") + *$1->name + "' redeclared as different kind of symbol." ); $$ = nullptr; |
---|
| 2934 | // } // if |
---|
| 2935 | } |
---|
[2871210] | 2936 | | '(' paren_type ')' |
---|
[4d51835] | 2937 | { $$ = $2; } |
---|
| 2938 | ; |
---|
[51b7345] | 2939 | |
---|
[2871210] | 2940 | type_ptr: |
---|
[c6b1105] | 2941 | ptrref_operator variable_type_redeclarator |
---|
[ce8c12f] | 2942 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c6b1105] | 2943 | | ptrref_operator type_qualifier_list variable_type_redeclarator |
---|
[ce8c12f] | 2944 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 2945 | | '(' type_ptr ')' attribute_list_opt |
---|
[c4f68dc] | 2946 | { $$ = $2->addQualifiers( $4 ); } // redundant parenthesis |
---|
[4d51835] | 2947 | ; |
---|
[51b7345] | 2948 | |
---|
[2871210] | 2949 | type_array: |
---|
| 2950 | paren_type array_dimension |
---|
[4d51835] | 2951 | { $$ = $1->addArray( $2 ); } |
---|
[2871210] | 2952 | | '(' type_ptr ')' array_dimension |
---|
[4d51835] | 2953 | { $$ = $2->addArray( $4 ); } |
---|
[2871210] | 2954 | | '(' type_array ')' multi_array_dimension // redundant parenthesis |
---|
[4d51835] | 2955 | { $$ = $2->addArray( $4 ); } |
---|
[2871210] | 2956 | | '(' type_array ')' // redundant parenthesis |
---|
[4d51835] | 2957 | { $$ = $2; } |
---|
| 2958 | ; |
---|
[51b7345] | 2959 | |
---|
[2871210] | 2960 | type_function: |
---|
| 2961 | paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[4d51835] | 2962 | { $$ = $1->addParamList( $4 ); } |
---|
[2871210] | 2963 | | '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
[4d51835] | 2964 | { $$ = $2->addParamList( $6 ); } |
---|
[2871210] | 2965 | | '(' type_function ')' // redundant parenthesis |
---|
[4d51835] | 2966 | { $$ = $2; } |
---|
| 2967 | ; |
---|
[51b7345] | 2968 | |
---|
[c0aa336] | 2969 | // This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a |
---|
| 2970 | // typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes |
---|
| 2971 | // declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus |
---|
| 2972 | // pointers to arrays and functions. |
---|
[51b7345] | 2973 | |
---|
| 2974 | identifier_parameter_declarator: |
---|
[4d51835] | 2975 | paren_identifier attribute_list_opt |
---|
[1db21619] | 2976 | { $$ = $1->addQualifiers( $2 ); } |
---|
[b6b3c42] | 2977 | | '&' MUTEX paren_identifier attribute_list_opt |
---|
| 2978 | { $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); } |
---|
[4d51835] | 2979 | | identifier_parameter_ptr |
---|
| 2980 | | identifier_parameter_array attribute_list_opt |
---|
[1db21619] | 2981 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2982 | | identifier_parameter_function attribute_list_opt |
---|
[1db21619] | 2983 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 2984 | ; |
---|
[51b7345] | 2985 | |
---|
| 2986 | identifier_parameter_ptr: |
---|
[dd51906] | 2987 | ptrref_operator identifier_parameter_declarator |
---|
[ce8c12f] | 2988 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 2989 | | ptrref_operator type_qualifier_list identifier_parameter_declarator |
---|
[ce8c12f] | 2990 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 2991 | | '(' identifier_parameter_ptr ')' attribute_list_opt |
---|
| 2992 | { $$ = $2->addQualifiers( $4 ); } |
---|
[4d51835] | 2993 | ; |
---|
[51b7345] | 2994 | |
---|
| 2995 | identifier_parameter_array: |
---|
[4d51835] | 2996 | paren_identifier array_parameter_dimension |
---|
| 2997 | { $$ = $1->addArray( $2 ); } |
---|
| 2998 | | '(' identifier_parameter_ptr ')' array_dimension |
---|
| 2999 | { $$ = $2->addArray( $4 ); } |
---|
| 3000 | | '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 3001 | { $$ = $2->addArray( $4 ); } |
---|
| 3002 | | '(' identifier_parameter_array ')' // redundant parenthesis |
---|
| 3003 | { $$ = $2; } |
---|
| 3004 | ; |
---|
[51b7345] | 3005 | |
---|
| 3006 | identifier_parameter_function: |
---|
[c0a33d2] | 3007 | paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3008 | { $$ = $1->addParamList( $4 ); } |
---|
| 3009 | | '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3010 | { $$ = $2->addParamList( $6 ); } |
---|
[4d51835] | 3011 | | '(' identifier_parameter_function ')' // redundant parenthesis |
---|
| 3012 | { $$ = $2; } |
---|
| 3013 | ; |
---|
[b87a5ed] | 3014 | |
---|
[de62360d] | 3015 | // This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name, |
---|
| 3016 | // e.g.: |
---|
[c11e31c] | 3017 | // |
---|
[b87a5ed] | 3018 | // typedef int foo; |
---|
[114014c] | 3019 | // forall( otype T ) struct foo; |
---|
[b87a5ed] | 3020 | // int f( int foo ); // redefine typedef name in new scope |
---|
[c11e31c] | 3021 | // |
---|
[c0aa336] | 3022 | // and allows the C99 array options, which can only appear in a parameter list. |
---|
[51b7345] | 3023 | |
---|
[2871210] | 3024 | type_parameter_redeclarator: |
---|
[4d51835] | 3025 | typedef attribute_list_opt |
---|
[1db21619] | 3026 | { $$ = $1->addQualifiers( $2 ); } |
---|
[b6b3c42] | 3027 | | '&' MUTEX typedef attribute_list_opt |
---|
| 3028 | { $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); } |
---|
[2871210] | 3029 | | type_parameter_ptr |
---|
| 3030 | | type_parameter_array attribute_list_opt |
---|
[1db21619] | 3031 | { $$ = $1->addQualifiers( $2 ); } |
---|
[2871210] | 3032 | | type_parameter_function attribute_list_opt |
---|
[1db21619] | 3033 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3034 | ; |
---|
[51b7345] | 3035 | |
---|
| 3036 | typedef: |
---|
[4d51835] | 3037 | TYPEDEFname |
---|
[7fdb94e] | 3038 | { $$ = DeclarationNode::newName( $1 ); } |
---|
[2871210] | 3039 | | TYPEGENname |
---|
[7fdb94e] | 3040 | { $$ = DeclarationNode::newName( $1 ); } |
---|
[4d51835] | 3041 | ; |
---|
[51b7345] | 3042 | |
---|
[2871210] | 3043 | type_parameter_ptr: |
---|
[dd51906] | 3044 | ptrref_operator type_parameter_redeclarator |
---|
[ce8c12f] | 3045 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 3046 | | ptrref_operator type_qualifier_list type_parameter_redeclarator |
---|
[ce8c12f] | 3047 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 3048 | | '(' type_parameter_ptr ')' attribute_list_opt |
---|
| 3049 | { $$ = $2->addQualifiers( $4 ); } |
---|
[4d51835] | 3050 | ; |
---|
[51b7345] | 3051 | |
---|
[2871210] | 3052 | type_parameter_array: |
---|
[4d51835] | 3053 | typedef array_parameter_dimension |
---|
| 3054 | { $$ = $1->addArray( $2 ); } |
---|
[2871210] | 3055 | | '(' type_parameter_ptr ')' array_parameter_dimension |
---|
[4d51835] | 3056 | { $$ = $2->addArray( $4 ); } |
---|
| 3057 | ; |
---|
[51b7345] | 3058 | |
---|
[2871210] | 3059 | type_parameter_function: |
---|
[c0a33d2] | 3060 | typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3061 | { $$ = $1->addParamList( $4 ); } |
---|
| 3062 | | '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3063 | { $$ = $2->addParamList( $6 ); } |
---|
[4d51835] | 3064 | ; |
---|
[b87a5ed] | 3065 | |
---|
[de62360d] | 3066 | // This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to |
---|
| 3067 | // which the type applies, e.g.: |
---|
[c11e31c] | 3068 | // |
---|
[b87a5ed] | 3069 | // sizeof( int ); |
---|
[c0aa336] | 3070 | // sizeof( int * ); |
---|
[b87a5ed] | 3071 | // sizeof( int [10] ); |
---|
[c0aa336] | 3072 | // sizeof( int (*)() ); |
---|
| 3073 | // sizeof( int () ); |
---|
[c11e31c] | 3074 | // |
---|
[de62360d] | 3075 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
| 3076 | // and functions versus pointers to arrays and functions. |
---|
[51b7345] | 3077 | |
---|
| 3078 | abstract_declarator: |
---|
[4d51835] | 3079 | abstract_ptr |
---|
| 3080 | | abstract_array attribute_list_opt |
---|
[1db21619] | 3081 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3082 | | abstract_function attribute_list_opt |
---|
[1db21619] | 3083 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3084 | ; |
---|
[51b7345] | 3085 | |
---|
| 3086 | abstract_ptr: |
---|
[dd51906] | 3087 | ptrref_operator |
---|
[ce8c12f] | 3088 | { $$ = DeclarationNode::newPointer( 0, $1 ); } |
---|
[dd51906] | 3089 | | ptrref_operator type_qualifier_list |
---|
[ce8c12f] | 3090 | { $$ = DeclarationNode::newPointer( $2, $1 ); } |
---|
[dd51906] | 3091 | | ptrref_operator abstract_declarator |
---|
[ce8c12f] | 3092 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 3093 | | ptrref_operator type_qualifier_list abstract_declarator |
---|
[ce8c12f] | 3094 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 3095 | | '(' abstract_ptr ')' attribute_list_opt |
---|
| 3096 | { $$ = $2->addQualifiers( $4 ); } |
---|
[4d51835] | 3097 | ; |
---|
[51b7345] | 3098 | |
---|
| 3099 | abstract_array: |
---|
[4d51835] | 3100 | array_dimension |
---|
| 3101 | | '(' abstract_ptr ')' array_dimension |
---|
| 3102 | { $$ = $2->addArray( $4 ); } |
---|
| 3103 | | '(' abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 3104 | { $$ = $2->addArray( $4 ); } |
---|
| 3105 | | '(' abstract_array ')' // redundant parenthesis |
---|
| 3106 | { $$ = $2; } |
---|
| 3107 | ; |
---|
[51b7345] | 3108 | |
---|
| 3109 | abstract_function: |
---|
[c0a33d2] | 3110 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3111 | { $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); } |
---|
| 3112 | | '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3113 | { $$ = $2->addParamList( $6 ); } |
---|
[4d51835] | 3114 | | '(' abstract_function ')' // redundant parenthesis |
---|
| 3115 | { $$ = $2; } |
---|
| 3116 | ; |
---|
[51b7345] | 3117 | |
---|
| 3118 | array_dimension: |
---|
[4d51835] | 3119 | // Only the first dimension can be empty. |
---|
[2871210] | 3120 | '[' ']' |
---|
[4d51835] | 3121 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
[2871210] | 3122 | | '[' ']' multi_array_dimension |
---|
| 3123 | { $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); } |
---|
[4d51835] | 3124 | | multi_array_dimension |
---|
| 3125 | ; |
---|
[51b7345] | 3126 | |
---|
| 3127 | multi_array_dimension: |
---|
[c0a33d2] | 3128 | '[' push assignment_expression pop ']' |
---|
| 3129 | { $$ = DeclarationNode::newArray( $3, 0, false ); } |
---|
| 3130 | | '[' push '*' pop ']' // C99 |
---|
[4d51835] | 3131 | { $$ = DeclarationNode::newVarArray( 0 ); } |
---|
[c0a33d2] | 3132 | | multi_array_dimension '[' push assignment_expression pop ']' |
---|
| 3133 | { $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); } |
---|
| 3134 | | multi_array_dimension '[' push '*' pop ']' // C99 |
---|
[4d51835] | 3135 | { $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); } |
---|
| 3136 | ; |
---|
[51b7345] | 3137 | |
---|
[c11e31c] | 3138 | // This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no |
---|
| 3139 | // identifier to which the type applies, e.g.: |
---|
| 3140 | // |
---|
[c0aa336] | 3141 | // int f( int ); // not handled here |
---|
| 3142 | // int f( int * ); // abstract function-prototype parameter; no parameter name specified |
---|
| 3143 | // int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified |
---|
[b87a5ed] | 3144 | // int f( int (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 3145 | // |
---|
[de62360d] | 3146 | // The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays |
---|
[c0aa336] | 3147 | // and functions versus pointers to arrays and functions. In addition, the pattern handles the |
---|
| 3148 | // special meaning of parenthesis around a typedef name: |
---|
| 3149 | // |
---|
| 3150 | // ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in |
---|
| 3151 | // parentheses is taken to be an abstract declarator that specifies a function with a single parameter, |
---|
| 3152 | // not as redundant parentheses around the identifier." |
---|
| 3153 | // |
---|
| 3154 | // For example: |
---|
| 3155 | // |
---|
| 3156 | // typedef float T; |
---|
| 3157 | // int f( int ( T [5] ) ); // see abstract_parameter_declarator |
---|
| 3158 | // int g( int ( T ( int ) ) ); // see abstract_parameter_declarator |
---|
| 3159 | // int f( int f1( T a[5] ) ); // see identifier_parameter_declarator |
---|
| 3160 | // int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator |
---|
| 3161 | // |
---|
| 3162 | // In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and |
---|
| 3163 | // not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of |
---|
| 3164 | // functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and |
---|
| 3165 | // functions. |
---|
[51b7345] | 3166 | |
---|
| 3167 | abstract_parameter_declarator: |
---|
[4d51835] | 3168 | abstract_parameter_ptr |
---|
[b6b3c42] | 3169 | | '&' MUTEX attribute_list_opt |
---|
| 3170 | { $$ = DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf )->addQualifiers( $3 ); } |
---|
[4d51835] | 3171 | | abstract_parameter_array attribute_list_opt |
---|
[1db21619] | 3172 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3173 | | abstract_parameter_function attribute_list_opt |
---|
[1db21619] | 3174 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3175 | ; |
---|
[51b7345] | 3176 | |
---|
| 3177 | abstract_parameter_ptr: |
---|
[dd51906] | 3178 | ptrref_operator |
---|
[ce8c12f] | 3179 | { $$ = DeclarationNode::newPointer( nullptr, $1 ); } |
---|
[dd51906] | 3180 | | ptrref_operator type_qualifier_list |
---|
[ce8c12f] | 3181 | { $$ = DeclarationNode::newPointer( $2, $1 ); } |
---|
[dd51906] | 3182 | | ptrref_operator abstract_parameter_declarator |
---|
[ce8c12f] | 3183 | { $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); } |
---|
[dd51906] | 3184 | | ptrref_operator type_qualifier_list abstract_parameter_declarator |
---|
[ce8c12f] | 3185 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 3186 | | '(' abstract_parameter_ptr ')' attribute_list_opt |
---|
| 3187 | { $$ = $2->addQualifiers( $4 ); } |
---|
[4d51835] | 3188 | ; |
---|
[51b7345] | 3189 | |
---|
| 3190 | abstract_parameter_array: |
---|
[4d51835] | 3191 | array_parameter_dimension |
---|
| 3192 | | '(' abstract_parameter_ptr ')' array_parameter_dimension |
---|
| 3193 | { $$ = $2->addArray( $4 ); } |
---|
| 3194 | | '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis |
---|
| 3195 | { $$ = $2->addArray( $4 ); } |
---|
| 3196 | | '(' abstract_parameter_array ')' // redundant parenthesis |
---|
| 3197 | { $$ = $2; } |
---|
| 3198 | ; |
---|
[51b7345] | 3199 | |
---|
| 3200 | abstract_parameter_function: |
---|
[c0a33d2] | 3201 | '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3202 | { $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); } |
---|
| 3203 | | '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3204 | { $$ = $2->addParamList( $6 ); } |
---|
[4d51835] | 3205 | | '(' abstract_parameter_function ')' // redundant parenthesis |
---|
| 3206 | { $$ = $2; } |
---|
| 3207 | ; |
---|
[51b7345] | 3208 | |
---|
| 3209 | array_parameter_dimension: |
---|
[4d51835] | 3210 | // Only the first dimension can be empty or have qualifiers. |
---|
| 3211 | array_parameter_1st_dimension |
---|
| 3212 | | array_parameter_1st_dimension multi_array_dimension |
---|
| 3213 | { $$ = $1->addArray( $2 ); } |
---|
| 3214 | | multi_array_dimension |
---|
| 3215 | ; |
---|
[51b7345] | 3216 | |
---|
[c11e31c] | 3217 | // The declaration of an array parameter has additional syntax over arrays in normal variable declarations: |
---|
| 3218 | // |
---|
[de62360d] | 3219 | // ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in |
---|
| 3220 | // a declaration of a function parameter with an array type, and then only in the outermost array type derivation." |
---|
[51b7345] | 3221 | |
---|
| 3222 | array_parameter_1st_dimension: |
---|
[2871210] | 3223 | '[' ']' |
---|
[4d51835] | 3224 | { $$ = DeclarationNode::newArray( 0, 0, false ); } |
---|
[13e8427] | 3225 | // multi_array_dimension handles the '[' '*' ']' case |
---|
[c0a33d2] | 3226 | | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 3227 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 3228 | | '[' push type_qualifier_list pop ']' |
---|
| 3229 | { $$ = DeclarationNode::newArray( 0, $3, false ); } |
---|
[13e8427] | 3230 | // multi_array_dimension handles the '[' assignment_expression ']' case |
---|
[c0a33d2] | 3231 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 3232 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 3233 | | '[' push STATIC type_qualifier_list_opt assignment_expression pop ']' |
---|
| 3234 | { $$ = DeclarationNode::newArray( $5, $4, true ); } |
---|
| 3235 | | '[' push type_qualifier_list STATIC assignment_expression pop ']' |
---|
| 3236 | { $$ = DeclarationNode::newArray( $5, $3, true ); } |
---|
[4d51835] | 3237 | ; |
---|
[b87a5ed] | 3238 | |
---|
[c0aa336] | 3239 | // This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer. |
---|
[c11e31c] | 3240 | // |
---|
[c0aa336] | 3241 | // struct S { |
---|
| 3242 | // int; |
---|
| 3243 | // int *; |
---|
| 3244 | // int [10]; |
---|
| 3245 | // int (*)(); |
---|
| 3246 | // }; |
---|
[51b7345] | 3247 | |
---|
| 3248 | variable_abstract_declarator: |
---|
[4d51835] | 3249 | variable_abstract_ptr |
---|
| 3250 | | variable_abstract_array attribute_list_opt |
---|
[1db21619] | 3251 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3252 | | variable_abstract_function attribute_list_opt |
---|
[1db21619] | 3253 | { $$ = $1->addQualifiers( $2 ); } |
---|
[4d51835] | 3254 | ; |
---|
[51b7345] | 3255 | |
---|
| 3256 | variable_abstract_ptr: |
---|
[dd51906] | 3257 | ptrref_operator |
---|
[ce8c12f] | 3258 | { $$ = DeclarationNode::newPointer( 0, $1 ); } |
---|
[dd51906] | 3259 | | ptrref_operator type_qualifier_list |
---|
[ce8c12f] | 3260 | { $$ = DeclarationNode::newPointer( $2, $1 ); } |
---|
[dd51906] | 3261 | | ptrref_operator variable_abstract_declarator |
---|
[ce8c12f] | 3262 | { $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 3263 | | ptrref_operator type_qualifier_list variable_abstract_declarator |
---|
[ce8c12f] | 3264 | { $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); } |
---|
[c0aa336] | 3265 | | '(' variable_abstract_ptr ')' attribute_list_opt |
---|
| 3266 | { $$ = $2->addQualifiers( $4 ); } |
---|
[4d51835] | 3267 | ; |
---|
[51b7345] | 3268 | |
---|
| 3269 | variable_abstract_array: |
---|
[4d51835] | 3270 | array_dimension |
---|
| 3271 | | '(' variable_abstract_ptr ')' array_dimension |
---|
| 3272 | { $$ = $2->addArray( $4 ); } |
---|
| 3273 | | '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis |
---|
| 3274 | { $$ = $2->addArray( $4 ); } |
---|
| 3275 | | '(' variable_abstract_array ')' // redundant parenthesis |
---|
| 3276 | { $$ = $2; } |
---|
| 3277 | ; |
---|
[51b7345] | 3278 | |
---|
| 3279 | variable_abstract_function: |
---|
[c0a33d2] | 3280 | '(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3) |
---|
| 3281 | { $$ = $2->addParamList( $6 ); } |
---|
[4d51835] | 3282 | | '(' variable_abstract_function ')' // redundant parenthesis |
---|
| 3283 | { $$ = $2; } |
---|
| 3284 | ; |
---|
[b87a5ed] | 3285 | |
---|
[de62360d] | 3286 | // This pattern parses a new-style declaration for a parameter variable or function prototype that is either an |
---|
| 3287 | // identifier or typedef name and allows the C99 array options, which can only appear in a parameter list. |
---|
[b87a5ed] | 3288 | |
---|
[c0aa336] | 3289 | cfa_identifier_parameter_declarator_tuple: // CFA |
---|
| 3290 | cfa_identifier_parameter_declarator_no_tuple |
---|
| 3291 | | cfa_abstract_tuple |
---|
| 3292 | | type_qualifier_list cfa_abstract_tuple |
---|
[4d51835] | 3293 | { $$ = $2->addQualifiers( $1 ); } |
---|
| 3294 | ; |
---|
[b87a5ed] | 3295 | |
---|
[c0aa336] | 3296 | cfa_identifier_parameter_declarator_no_tuple: // CFA |
---|
| 3297 | cfa_identifier_parameter_ptr |
---|
| 3298 | | cfa_identifier_parameter_array |
---|
[4d51835] | 3299 | ; |
---|
[b87a5ed] | 3300 | |
---|
[c0aa336] | 3301 | cfa_identifier_parameter_ptr: // CFA |
---|
[d0ffed1] | 3302 | // No SUE declaration in parameter list. |
---|
| 3303 | ptrref_operator type_specifier_nobody |
---|
[ce8c12f] | 3304 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[d0ffed1] | 3305 | | type_qualifier_list ptrref_operator type_specifier_nobody |
---|
[ce8c12f] | 3306 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[c0aa336] | 3307 | | ptrref_operator cfa_abstract_function |
---|
[ce8c12f] | 3308 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c0aa336] | 3309 | | type_qualifier_list ptrref_operator cfa_abstract_function |
---|
[ce8c12f] | 3310 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[c0aa336] | 3311 | | ptrref_operator cfa_identifier_parameter_declarator_tuple |
---|
[ce8c12f] | 3312 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c0aa336] | 3313 | | type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple |
---|
[ce8c12f] | 3314 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[4d51835] | 3315 | ; |
---|
[b87a5ed] | 3316 | |
---|
[c0aa336] | 3317 | cfa_identifier_parameter_array: // CFA |
---|
[de62360d] | 3318 | // Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to |
---|
| 3319 | // shift/reduce conflict with new-style empty (void) function return type. |
---|
[d0ffed1] | 3320 | '[' ']' type_specifier_nobody |
---|
[2871210] | 3321 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[d0ffed1] | 3322 | | cfa_array_parameter_1st_dimension type_specifier_nobody |
---|
[4d51835] | 3323 | { $$ = $2->addNewArray( $1 ); } |
---|
[d0ffed1] | 3324 | | '[' ']' multi_array_dimension type_specifier_nobody |
---|
[2871210] | 3325 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[d0ffed1] | 3326 | | cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody |
---|
[4d51835] | 3327 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
[d0ffed1] | 3328 | | multi_array_dimension type_specifier_nobody |
---|
[4d51835] | 3329 | { $$ = $2->addNewArray( $1 ); } |
---|
[9059213] | 3330 | |
---|
[c0aa336] | 3331 | | '[' ']' cfa_identifier_parameter_ptr |
---|
[2871210] | 3332 | { $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[c0aa336] | 3333 | | cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr |
---|
[4d51835] | 3334 | { $$ = $2->addNewArray( $1 ); } |
---|
[c0aa336] | 3335 | | '[' ']' multi_array_dimension cfa_identifier_parameter_ptr |
---|
[2871210] | 3336 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); } |
---|
[c0aa336] | 3337 | | cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr |
---|
[4d51835] | 3338 | { $$ = $3->addNewArray( $2 )->addNewArray( $1 ); } |
---|
[c0aa336] | 3339 | | multi_array_dimension cfa_identifier_parameter_ptr |
---|
[4d51835] | 3340 | { $$ = $2->addNewArray( $1 ); } |
---|
| 3341 | ; |
---|
[51b7345] | 3342 | |
---|
[c0aa336] | 3343 | cfa_array_parameter_1st_dimension: |
---|
[c0a33d2] | 3344 | '[' push type_qualifier_list '*' pop ']' // remaining C99 |
---|
| 3345 | { $$ = DeclarationNode::newVarArray( $3 ); } |
---|
| 3346 | | '[' push type_qualifier_list assignment_expression pop ']' |
---|
| 3347 | { $$ = DeclarationNode::newArray( $4, $3, false ); } |
---|
| 3348 | | '[' push declaration_qualifier_list assignment_expression pop ']' |
---|
[4d51835] | 3349 | // declaration_qualifier_list must be used because of shift/reduce conflict with |
---|
| 3350 | // assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot |
---|
| 3351 | // appear in this context. |
---|
[c0a33d2] | 3352 | { $$ = DeclarationNode::newArray( $4, $3, true ); } |
---|
| 3353 | | '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']' |
---|
| 3354 | { $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); } |
---|
[4d51835] | 3355 | ; |
---|
[b87a5ed] | 3356 | |
---|
[de62360d] | 3357 | // This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no |
---|
| 3358 | // identifier to which the type applies, e.g.: |
---|
[c11e31c] | 3359 | // |
---|
[b87a5ed] | 3360 | // [int] f( int ); // abstract variable parameter; no parameter name specified |
---|
| 3361 | // [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified |
---|
[c11e31c] | 3362 | // |
---|
| 3363 | // These rules need LR(3): |
---|
| 3364 | // |
---|
[c0aa336] | 3365 | // cfa_abstract_tuple identifier_or_type_name |
---|
[40de461] | 3366 | // '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_ellipsis_list_opt ')' |
---|
[c11e31c] | 3367 | // |
---|
| 3368 | // since a function return type can be syntactically identical to a tuple type: |
---|
| 3369 | // |
---|
[b87a5ed] | 3370 | // [int, int] t; |
---|
| 3371 | // [int, int] f( int ); |
---|
[c11e31c] | 3372 | // |
---|
[2871210] | 3373 | // Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce |
---|
[c0aa336] | 3374 | // cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary |
---|
| 3375 | // lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are |
---|
| 3376 | // duplicated when appearing with cfa_function_specifier. |
---|
[b87a5ed] | 3377 | |
---|
[c0aa336] | 3378 | cfa_abstract_declarator_tuple: // CFA |
---|
| 3379 | cfa_abstract_tuple |
---|
| 3380 | | type_qualifier_list cfa_abstract_tuple |
---|
[4d51835] | 3381 | { $$ = $2->addQualifiers( $1 ); } |
---|
[c0aa336] | 3382 | | cfa_abstract_declarator_no_tuple |
---|
[4d51835] | 3383 | ; |
---|
[b87a5ed] | 3384 | |
---|
[c0aa336] | 3385 | cfa_abstract_declarator_no_tuple: // CFA |
---|
| 3386 | cfa_abstract_ptr |
---|
| 3387 | | cfa_abstract_array |
---|
[4d51835] | 3388 | ; |
---|
[b87a5ed] | 3389 | |
---|
[c0aa336] | 3390 | cfa_abstract_ptr: // CFA |
---|
[dd51906] | 3391 | ptrref_operator type_specifier |
---|
[ce8c12f] | 3392 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[dd51906] | 3393 | | type_qualifier_list ptrref_operator type_specifier |
---|
[ce8c12f] | 3394 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[c0aa336] | 3395 | | ptrref_operator cfa_abstract_function |
---|
[ce8c12f] | 3396 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c0aa336] | 3397 | | type_qualifier_list ptrref_operator cfa_abstract_function |
---|
[ce8c12f] | 3398 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[c0aa336] | 3399 | | ptrref_operator cfa_abstract_declarator_tuple |
---|
[ce8c12f] | 3400 | { $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); } |
---|
[c0aa336] | 3401 | | type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple |
---|
[ce8c12f] | 3402 | { $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); } |
---|
[4d51835] | 3403 | ; |
---|
[b87a5ed] | 3404 | |
---|
[c0aa336] | 3405 | cfa_abstract_array: // CFA |
---|
[de62360d] | 3406 | // Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with |
---|
| 3407 | // empty (void) function return type. |
---|
[2871210] | 3408 | '[' ']' type_specifier |
---|
[2298f728] | 3409 | { $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[2871210] | 3410 | | '[' ']' multi_array_dimension type_specifier |
---|
[2298f728] | 3411 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[4d51835] | 3412 | | multi_array_dimension type_specifier |
---|
| 3413 | { $$ = $2->addNewArray( $1 ); } |
---|
[c0aa336] | 3414 | | '[' ']' cfa_abstract_ptr |
---|
[2298f728] | 3415 | { $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[c0aa336] | 3416 | | '[' ']' multi_array_dimension cfa_abstract_ptr |
---|
[2298f728] | 3417 | { $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); } |
---|
[c0aa336] | 3418 | | multi_array_dimension cfa_abstract_ptr |
---|
[4d51835] | 3419 | { $$ = $2->addNewArray( $1 ); } |
---|
| 3420 | ; |
---|
[b87a5ed] | 3421 | |
---|
[c0aa336] | 3422 | cfa_abstract_tuple: // CFA |
---|
[c0a33d2] | 3423 | '[' push cfa_abstract_parameter_list pop ']' |
---|
| 3424 | { $$ = DeclarationNode::newTuple( $3 ); } |
---|
[35718a9] | 3425 | | '[' push type_specifier_nobody ELLIPSIS pop ']' |
---|
[13e8427] | 3426 | { SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; } |
---|
[35718a9] | 3427 | | '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']' |
---|
[13e8427] | 3428 | { SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; } |
---|
[4d51835] | 3429 | ; |
---|
[b87a5ed] | 3430 | |
---|
[c0aa336] | 3431 | cfa_abstract_function: // CFA |
---|
[40de461] | 3432 | // '[' ']' '(' cfa_parameter_ellipsis_list_opt ')' |
---|
[1b29996] | 3433 | // { $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); } |
---|
[40de461] | 3434 | cfa_abstract_tuple '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[c0a33d2] | 3435 | { $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); } |
---|
[40de461] | 3436 | | cfa_function_return '(' push cfa_parameter_ellipsis_list_opt pop ')' |
---|
[c0a33d2] | 3437 | { $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); } |
---|
[4d51835] | 3438 | ; |
---|
[b87a5ed] | 3439 | |
---|
[de62360d] | 3440 | // 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in |
---|
| 3441 | // each declaration, and in the specifier-qualifier list in each structure declaration and type name." |
---|
[c11e31c] | 3442 | // |
---|
[de62360d] | 3443 | // 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of |
---|
| 3444 | // the declaration specifiers in a declaration is an obsolescent feature." |
---|
[c11e31c] | 3445 | // |
---|
| 3446 | // 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not |
---|
| 3447 | // prototype-format parameter type declarators) is an obsolescent feature." |
---|
| 3448 | // |
---|
[de62360d] | 3449 | // 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and |
---|
| 3450 | // declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature. |
---|
[51b7345] | 3451 | |
---|
[c11e31c] | 3452 | //************************* MISCELLANEOUS ******************************** |
---|
[51b7345] | 3453 | |
---|
[b87a5ed] | 3454 | comma_opt: // redundant comma |
---|
[4d51835] | 3455 | // empty |
---|
| 3456 | | ',' |
---|
| 3457 | ; |
---|
[51b7345] | 3458 | |
---|
[994d080] | 3459 | default_initialize_opt: |
---|
[4d51835] | 3460 | // empty |
---|
[58dd019] | 3461 | { $$ = nullptr; } |
---|
[4d51835] | 3462 | | '=' assignment_expression |
---|
| 3463 | { $$ = $2; } |
---|
| 3464 | ; |
---|
[51b7345] | 3465 | |
---|
| 3466 | %% |
---|
[a1c9ddd] | 3467 | |
---|
[c11e31c] | 3468 | // ----end of grammar---- |
---|
[51b7345] | 3469 | |
---|
[c11e31c] | 3470 | // Local Variables: // |
---|
[b87a5ed] | 3471 | // mode: c++ // |
---|
[de62360d] | 3472 | // tab-width: 4 // |
---|
[c11e31c] | 3473 | // compile-command: "make install" // |
---|
| 3474 | // End: // |
---|