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Last change on this file since efe4d730 was 9059213, checked in by Peter A. Buhr <pabuhr@…>, 9 years ago
small changes to bring me up to date
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File size: 103.7 KB

Rev	Line
[b87a5ed]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[974906e2]	7	// cfa.y --
	8	//
[c11e31c]	9	// Author : Peter A. Buhr
	10	// Created On : Sat Sep 1 20:22:55 2001
	11	// Last Modified By : Peter A. Buhr
[9059213]	12	// Last Modified On : Wed Oct 19 22:19:33 2016
	13	// Update Count : 2003
[974906e2]	14	//
[c11e31c]	15
[de62360d]	16	// This grammar is based on the ANSI99/11 C grammar, specifically parts of EXPRESSION and STATEMENTS, and on the C
	17	// grammar by James A. Roskind, specifically parts of DECLARATIONS and EXTERNAL DEFINITIONS. While parts have been
	18	// copied, important changes have been made in all sections; these changes are sufficient to constitute a new grammar.
	19	// In particular, this grammar attempts to be more syntactically precise, i.e., it parses less incorrect language syntax
	20	// that must be subsequently rejected by semantic checks. Nevertheless, there are still several semantic checks
	21	// required and many are noted in the grammar. Finally, the grammar is extended with GCC and CFA language extensions.
[c11e31c]	22
[de62360d]	23	// Acknowledgments to Richard Bilson, Glen Ditchfield, and Rodolfo Gabriel Esteves who all helped when I got stuck with
	24	// the grammar.
[c11e31c]	25
	26	// The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed, except for:
	27	//
	28	// 1. designation with '=' (use ':' instead)
	29	//
[de62360d]	30	// Most of the syntactic extensions from ANSI90 to ANSI11 C are marked with the comment "C99/C11". This grammar also has
	31	// two levels of extensions. The first extensions cover most of the GCC C extensions, except for:
[c11e31c]	32	//
[e7aed49]	33	// 1. designation with and without '=' (use ':' instead)
	34	// 2. attributes not allowed in parenthesis of declarator
[c11e31c]	35	//
[de62360d]	36	// All of the syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall
	37	// (CFA), which fixes several of C's outstanding problems and extends C with many modern language concepts. All of the
	38	// syntactic extensions for CFA C are marked with the comment "CFA". As noted above, there is one unreconcileable
	39	// parsing problem between C99 and CFA with respect to designators; this is discussed in detail before the "designation"
	40	// grammar rule.
[51b73452]	41
	42	%{
[b87a5ed]	43	#define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time
	44	#define YYDEBUG 1 // get the pretty debugging code to compile
[51b73452]	45
	46	#undef __GNUC_MINOR__
	47
	48	#include <cstdio>
	49	#include <stack>
	50	#include "lex.h"
[984dce6]	51	#include "parser.h"
[51b73452]	52	#include "ParseNode.h"
[984dce6]	53	#include "TypedefTable.h"
[1db21619]	54	#include "TypeData.h"
[51b73452]	55	#include "LinkageSpec.h"
[2298f728]	56	using namespace std;
[51b73452]	57
[cbaee0d]	58	extern DeclarationNode * parseTree;
[8b7ee09]	59	extern LinkageSpec::Spec linkage;
[0da3e2c]	60	extern TypedefTable typedefTable;
	61
[2298f728]	62	stack< LinkageSpec::Spec > linkageStack;
[7bf7fb9]	63
[2298f728]	64	void appendStr( string to, string from ) {
[7bf7fb9]	65	// "abc" "def" "ghi" => "abcdefghi", remove new text from quotes and insert before last quote in old string.
[ab57786]	66	to->insert( to->length() - 1, from->substr( 1, from->length() - 2 ) );
[7bf7fb9]	67	} // appendStr
[51b73452]	68	%}
	69
[c11e31c]	70	//*********************** TERMINAL TOKENS ******************************
[51b73452]	71
[c11e31c]	72	// keywords
[51b73452]	73	%token TYPEDEF
	74	%token AUTO EXTERN REGISTER STATIC
[b87a5ed]	75	%token INLINE // C99
	76	%token FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
[51b73452]	77	%token CONST VOLATILE
[b87a5ed]	78	%token RESTRICT // C99
	79	%token FORALL LVALUE // CFA
[51b73452]	80	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[90c3b1c]	81	%token VALIST // GCC
[b87a5ed]	82	%token BOOL COMPLEX IMAGINARY // C99
	83	%token TYPEOF LABEL // GCC
[51b73452]	84	%token ENUM STRUCT UNION
[e7aed49]	85	%token OTYPE FTYPE DTYPE TRAIT // CFA
[5721a6d]	86	%token SIZEOF OFFSETOF
[b87a5ed]	87	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	88	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[02e5ab6]	89	%token CHOOSE DISABLE ENABLE FALLTHRU TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT // CFA
[b87a5ed]	90	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[c11e31c]	91	%token ALIGNAS ALIGNOF ATOMIC GENERIC NORETURN STATICASSERT THREADLOCAL // C11
[51b73452]	92
[c11e31c]	93	// names and constants: lexer differentiates between identifier and typedef names
[b87a5ed]	94	%token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname
	95	%token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname
	96	%token<tok> INTEGERconstant FLOATINGconstant CHARACTERconstant STRINGliteral
	97	%token<tok> ZERO ONE // CFA
[51b73452]	98
[c11e31c]	99	// multi-character operators
[b87a5ed]	100	%token ARROW // ->
	101	%token ICR DECR // ++ --
	102	%token LS RS // << >>
	103	%token LE GE EQ NE // <= >= == !=
	104	%token ANDAND OROR // && \|\|
	105	%token ELLIPSIS // ...
	106
	107	%token MULTassign DIVassign MODassign // *= /= %=/
	108	%token PLUSassign MINUSassign // += -=
	109	%token LSassign RSassign // <<= >>=
	110	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	111
[e7aed49]	112	%token ATassign // @=
[097e2b0]	113
[c11e31c]	114	// Types declaration
[51b73452]	115	%union
	116	{
[b87a5ed]	117	Token tok;
	118	ParseNode *pn;
	119	ExpressionNode *en;
	120	DeclarationNode *decl;
[68cd1ce]	121	DeclarationNode::Aggregate aggKey;
[b87a5ed]	122	DeclarationNode::TypeClass tclass;
	123	StatementNode *sn;
[d1625f8]	124	ConstantExpr *constant;
[2f22cc4]	125	ForCtl *fctl;
[7f5566b]	126	LabelNode *label;
[b87a5ed]	127	InitializerNode *in;
[d9e2280]	128	OperKinds op;
[ab57786]	129	std::string *str;
[7f5566b]	130	bool flag;
[51b73452]	131	}
	132
[097e2b0]	133	%type<tok> identifier no_01_identifier no_attr_identifier zero_one
[2871210]	134	%type<tok> identifier_or_type_name no_attr_identifier_or_type_name no_01_identifier_or_type_name
[ab57786]	135	%type<constant> string_literal
	136	%type<str> string_literal_list
[51b73452]	137
[c11e31c]	138	// expressions
[d1625f8]	139	%type<en> constant
[b87a5ed]	140	%type<en> tuple tuple_expression_list
[9706554]	141	%type<op> ptrref_operator unary_operator assignment_operator
[b87a5ed]	142	%type<en> primary_expression postfix_expression unary_expression
	143	%type<en> cast_expression multiplicative_expression additive_expression shift_expression
	144	%type<en> relational_expression equality_expression AND_expression exclusive_OR_expression
	145	%type<en> inclusive_OR_expression logical_AND_expression logical_OR_expression conditional_expression
	146	%type<en> constant_expression assignment_expression assignment_expression_opt
	147	%type<en> comma_expression comma_expression_opt
[2f22cc4]	148	%type<en> argument_expression_list argument_expression assignment_opt
	149	%type<fctl> for_control_expression
[51b73452]	150	%type<en> subrange
[7f5566b]	151	%type<en> asm_operands_opt asm_operands_list asm_operand
	152	%type<label> label_list
[d1625f8]	153	%type<en> asm_clobbers_list_opt
[7f5566b]	154	%type<flag> asm_volatile_opt
[51b73452]	155
[c11e31c]	156	// statements
[b87a5ed]	157	%type<sn> labeled_statement compound_statement expression_statement selection_statement
[097e2b0]	158	%type<sn> iteration_statement jump_statement exception_statement asm_statement
[b87a5ed]	159	%type<sn> fall_through_opt fall_through
	160	%type<sn> statement statement_list
	161	%type<sn> block_item_list block_item
[51b73452]	162	%type<sn> case_clause
[8688ce1]	163	%type<en> case_value
	164	%type<sn> case_value_list case_label case_label_list
[b87a5ed]	165	%type<sn> switch_clause_list_opt switch_clause_list choose_clause_list_opt choose_clause_list
[1d4580a]	166	%type<sn> handler_list handler_clause finally_clause
[51b73452]	167
[c11e31c]	168	// declarations
[51b73452]	169	%type<decl> abstract_array abstract_declarator abstract_function abstract_parameter_array
	170	%type<decl> abstract_parameter_declaration abstract_parameter_declarator abstract_parameter_function
	171	%type<decl> abstract_parameter_ptr abstract_ptr
	172
	173	%type<aggKey> aggregate_key
	174	%type<decl> aggregate_name
	175
	176	%type<decl> array_dimension array_parameter_1st_dimension array_parameter_dimension multi_array_dimension
	177
	178	%type<decl> assertion assertion_list_opt
	179
	180	%type<en> bit_subrange_size_opt bit_subrange_size
	181
	182	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type_name indirect_type_name
	183
[4040425]	184	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	185
	186	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
	187	%type<decl> declaration_specifier declarator declaring_list
	188
	189	%type<decl> elaborated_type_name
	190
	191	%type<decl> enumerator_list enum_name
	192	%type<en> enumerator_value_opt
	193
	194	%type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt
	195
	196	%type<decl> field_declaration field_declaration_list field_declarator field_declaring_list
	197	%type<en> field field_list
[faddbd8]	198	%type<tok> field_name
[51b73452]	199
[4d51835]	200	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	201
	202	%type<decl> identifier_parameter_array identifier_parameter_declarator identifier_parameter_function
	203	%type<decl> identifier_parameter_ptr identifier_list
	204
	205	%type<decl> new_abstract_array new_abstract_declarator_no_tuple new_abstract_declarator_tuple
	206	%type<decl> new_abstract_function new_abstract_parameter_declaration new_abstract_parameter_list
	207	%type<decl> new_abstract_ptr new_abstract_tuple
	208
	209	%type<decl> new_array_parameter_1st_dimension
	210
[4040425]	211	%type<decl> new_trait_declaring_list new_declaration new_field_declaring_list
[51b73452]	212	%type<decl> new_function_declaration new_function_return new_function_specifier
	213
	214	%type<decl> new_identifier_parameter_array new_identifier_parameter_declarator_no_tuple
	215	%type<decl> new_identifier_parameter_declarator_tuple new_identifier_parameter_ptr
	216
	217	%type<decl> new_parameter_declaration new_parameter_list new_parameter_type_list new_parameter_type_list_opt
	218
	219	%type<decl> new_typedef_declaration new_variable_declaration new_variable_specifier
	220
	221	%type<decl> old_declaration old_declaration_list old_declaration_list_opt old_function_array
	222	%type<decl> old_function_declarator old_function_no_ptr old_function_ptr
	223
	224	%type<decl> parameter_declaration parameter_list parameter_type_list
	225	%type<decl> parameter_type_list_opt
	226
[2871210]	227	%type<decl> paren_identifier paren_type
[51b73452]	228
[0da3e2c]	229	%type<decl> storage_class storage_class_list
[51b73452]	230
	231	%type<decl> sue_declaration_specifier sue_type_specifier
	232
	233	%type<tclass> type_class
	234	%type<decl> type_declarator type_declarator_name type_declaring_list
	235
[2871210]	236	%type<decl> typedef type_array typedef_declaration typedef_declaration_specifier typedef_expression
	237	%type<decl> type_function type_parameter_array type_parameter_function type_parameter_ptr
[c6b1105]	238	%type<decl> type_parameter_redeclarator type_ptr variable_type_redeclarator typedef_type_specifier
[2871210]	239	%type<decl> typegen_declaration_specifier typegen_type_specifier typegen_name
[51b73452]	240
	241	%type<decl> type_name type_name_no_function
	242	%type<decl> type_parameter type_parameter_list
	243
	244	%type<en> type_name_list
	245
	246	%type<decl> type_qualifier type_qualifier_name type_qualifier_list type_qualifier_list_opt type_specifier
	247
	248	%type<decl> variable_abstract_array variable_abstract_declarator variable_abstract_function
	249	%type<decl> variable_abstract_ptr variable_array variable_declarator variable_function variable_ptr
	250
[1db21619]	251	%type<decl> attribute_list_opt attribute_list attribute
	252
[c11e31c]	253	// initializers
[51b73452]	254	%type<in> initializer initializer_list initializer_opt
	255
[c11e31c]	256	// designators
[51b73452]	257	%type<en> designator designator_list designation
	258
	259
[b87a5ed]	260	// Handle single shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string
	261	// is ambiguous:
	262	// .---------. matches IF '(' comma_expression ')' statement
[c11e31c]	263	// if ( C ) S1 else S2
[b87a5ed]	264	// `-----------------' matches IF '(' comma_expression ')' statement ELSE statement */
[51b73452]	265
[c11e31c]	266	%nonassoc THEN // rule precedence for IF '(' comma_expression ')' statement
	267	%nonassoc ELSE // token precedence for start of else clause in IF statement
[51b73452]	268
[b87a5ed]	269	%start translation_unit // parse-tree root
[51b73452]	270
	271	%%
[c11e31c]	272	//*********************** Namespace Management ******************************
	273
[de62360d]	274	// The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal symbols
	275	// "identifier" and "TYPEDEFname" that are lexically identical. While it is possible to write a purely context-free
	276	// grammar, such a grammar would obscure the relationship between syntactic and semantic constructs. Hence, this
	277	// grammar uses the ANSI style.
[c11e31c]	278	//
[de62360d]	279	// Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, those
[9059213]	280	// introduced through "forall" qualifiers), and by introducing "type generators" -- parameterized types. This latter
[de62360d]	281	// type name creates a third class of identifiers that must be distinguished by the scanner.
[c11e31c]	282	//
[de62360d]	283	// Since the scanner cannot distinguish among the different classes of identifiers without some context information, it
[9059213]	284	// accesses a data structure (TypedefTable) to allow classification of an identifier that it has just read. Semantic
	285	// actions during the parser update this data structure when the class of identifiers change.
[c11e31c]	286	//
[de62360d]	287	// Because the Cforall language is block-scoped, there is the possibility that an identifier can change its class in a
	288	// local scope; it must revert to its original class at the end of the block. Since type names can be local to a
	289	// particular declaration, each declaration is itself a scope. This requires distinguishing between type names that are
	290	// local to the current declaration scope and those that persist past the end of the declaration (i.e., names defined in
[9059213]	291	// "typedef" or "otype" declarations).
[c11e31c]	292	//
[de62360d]	293	// The non-terminals "push" and "pop" derive the empty string; their only use is to denote the opening and closing of
	294	// scopes. Every push must have a matching pop, although it is regrettable the matching pairs do not always occur
	295	// within the same rule. These non-terminals may appear in more contexts than strictly necessary from a semantic point
	296	// of view. Unfortunately, these extra rules are necessary to prevent parsing conflicts -- the parser may not have
	297	// enough context and look-ahead information to decide whether a new scope is necessary, so the effect of these extra
	298	// rules is to open a new scope unconditionally. As the grammar evolves, it may be neccesary to add or move around
	299	// "push" and "pop" nonterminals to resolve conflicts of this sort.
[51b73452]	300
	301	push:
[ab57786]	302	{ typedefTable.enterScope(); }
[4d51835]	303	;
[51b73452]	304
	305	pop:
[ab57786]	306	{ typedefTable.leaveScope(); }
[4d51835]	307	;
[51b73452]	308
[c11e31c]	309	//*********************** CONSTANTS ******************************
[51b73452]	310
	311	constant:
[de62360d]	312	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[ab57786]	313	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); }
	314	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	315	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); }
[4d51835]	316	;
[51b73452]	317
	318	identifier:
[4d51835]	319	IDENTIFIER
	320	\| ATTR_IDENTIFIER // CFA
	321	\| zero_one // CFA
	322	;
[51b73452]	323
	324	no_01_identifier:
[4d51835]	325	IDENTIFIER
	326	\| ATTR_IDENTIFIER // CFA
	327	;
[51b73452]	328
	329	no_attr_identifier:
[4d51835]	330	IDENTIFIER
[bd85400]	331	\| zero_one // CFA
[4d51835]	332	;
[51b73452]	333
[b87a5ed]	334	zero_one: // CFA
[4d51835]	335	ZERO
	336	\| ONE
	337	;
[51b73452]	338
[ab57786]	339	string_literal:
	340	string_literal_list { $$ = build_constantStr( *$1 ); }
	341	;
	342
[b87a5ed]	343	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	344	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	345	\| string_literal_list STRINGliteral
	346	{
[ab57786]	347	appendStr( $1, $2 ); // append 2nd juxtaposed string to 1st
[7bf7fb9]	348	delete $2; // allocated by lexer
[ab57786]	349	$$ = $1; // conversion from tok to str
[7bf7fb9]	350	}
[4d51835]	351	;
[51b73452]	352
[c11e31c]	353	//*********************** EXPRESSIONS ******************************
[51b73452]	354
	355	primary_expression:
[4d51835]	356	IDENTIFIER // typedef name cannot be used as a variable name
[d1625f8]	357	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	358	\| zero_one
[d1625f8]	359	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	360	\| '(' comma_expression ')'
	361	{ $$ = $2; }
	362	\| '(' compound_statement ')' // GCC, lambda expression
[1b772749]	363	{ $$ = new ExpressionNode( build_valexpr( $2 ) ); }
[4d51835]	364	;
[51b73452]	365
	366	postfix_expression:
[4d51835]	367	primary_expression
	368	\| postfix_expression '[' push assignment_expression pop ']'
[c6b1105]	369	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	370	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	371	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	372	// equivalent to the old x[i,j].
[d1625f8]	373	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $4 ) ); }
[4d51835]	374	\| postfix_expression '(' argument_expression_list ')'
[d1625f8]	375	{ $$ = new ExpressionNode( build_func( $1, $3 ) ); }
[ab57786]	376	// ambiguity with .0 so space required after field-selection, e.g.
[bd85400]	377	// struct S { int 0, 1; } s; s. 0 = 0; s. 1 = 1;
[4d51835]	378	\| postfix_expression '.' no_attr_identifier
[d1625f8]	379	{ $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); }
[4d51835]	380	\| postfix_expression '.' '[' push field_list pop ']' // CFA, tuple field selector
[faddbd8]	381	\| postfix_expression '.' INTEGERconstant
[4d51835]	382	\| postfix_expression ARROW no_attr_identifier
[d1625f8]	383	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_varref( $3 ) ) ); }
[4d51835]	384	\| postfix_expression ARROW '[' push field_list pop ']' // CFA, tuple field selector
	385	\| postfix_expression ICR
[d1625f8]	386	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); }
[4d51835]	387	\| postfix_expression DECR
[d1625f8]	388	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); }
[4d51835]	389	\| '(' type_name_no_function ')' '{' initializer_list comma_opt '}' // C99
[d1625f8]	390	{ $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); }
[097e2b0]	391	\| postfix_expression '{' argument_expression_list '}' // CFA
	392	{
[9706554]	393	Token fn;
[9c23f31]	394	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b6fe7e6]	395	$$ = new ExpressionNode( new ConstructorExpr( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) ) );
[097e2b0]	396	}
[4d51835]	397	;
[51b73452]	398
	399	argument_expression_list:
[4d51835]	400	argument_expression
	401	\| argument_expression_list ',' argument_expression
[1d4580a]	402	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	403	;
[51b73452]	404
	405	argument_expression:
[4d51835]	406	// empty
	407	{ $$ = 0; } // use default argument
	408	\| assignment_expression
	409	;
[b87a5ed]	410
	411	field_list: // CFA, tuple field selector
[4d51835]	412	field
[1d4580a]	413	\| field_list ',' field { $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	414	;
[b87a5ed]	415
	416	field: // CFA, tuple field selector
[faddbd8]	417	field_name
[ab57786]	418	// ambiguity with .0 so space required after field-selection, e.g.
[bd85400]	419	// struct S { int 0, 1; } s; s. 0 = 0; s. 1 = 1;
[faddbd8]	420	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
	421	\| field_name '.' field
[d1625f8]	422	{ $$ = new ExpressionNode( build_fieldSel( $3, build_varref( $1 ) ) ); }
[faddbd8]	423	\| field_name '.' '[' push field_list pop ']'
[d1625f8]	424	{ $$ = new ExpressionNode( build_fieldSel( $5, build_varref( $1 ) ) ); }
[faddbd8]	425	\| field_name ARROW field
[d1625f8]	426	{ $$ = new ExpressionNode( build_pfieldSel( $3, build_varref( $1 ) ) ); }
[faddbd8]	427	\| field_name ARROW '[' push field_list pop ']'
[d1625f8]	428	{ $$ = new ExpressionNode( build_pfieldSel( $5, build_varref( $1 ) ) ); }
[4d51835]	429	;
[51b73452]	430
[faddbd8]	431	field_name:
	432	no_attr_identifier
[9059213]	433	// x.1, x.[0, 0.0]
[faddbd8]	434	\| INTEGERconstant
	435	;
	436
[51b73452]	437	unary_expression:
[4d51835]	438	postfix_expression
[c6b1105]	439	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	440	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	441	\| constant
	442	{ $$ = $1; }
[ab57786]	443	\| string_literal
[d1625f8]	444	{ $$ = new ExpressionNode( $1 ); }
[4d51835]	445	\| EXTENSION cast_expression // GCC
[e04ef3a]	446	{ $$ = $2->set_extension( true ); }
[c6b1105]	447	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	448	// { * X; } // dereference X
	449	// { * int X; } // CFA declaration of pointer to int
[51e076e]	450	\| ptrref_operator cast_expression // CFA
[9706554]	451	{
	452	switch ( $1 ) {
[d9e2280]	453	case OperKinds::AddressOf:
[d1625f8]	454	$$ = new ExpressionNode( build_addressOf( $2 ) );
[9706554]	455	break;
[d9e2280]	456	case OperKinds::PointTo:
[d1625f8]	457	$$ = new ExpressionNode( build_unary_val( $1, $2 ) );
[9706554]	458	break;
	459	default:
	460	assert( false );
	461	}
	462	}
[4d51835]	463	\| unary_operator cast_expression
[d1625f8]	464	{ $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); }
[dd51906]	465	\| ICR unary_expression
[d1625f8]	466	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); }
[dd51906]	467	\| DECR unary_expression
[d1625f8]	468	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); }
[4d51835]	469	\| SIZEOF unary_expression
[d1625f8]	470	{ $$ = new ExpressionNode( build_sizeOfexpr( $2 ) ); }
[4d51835]	471	\| SIZEOF '(' type_name_no_function ')'
[d1625f8]	472	{ $$ = new ExpressionNode( build_sizeOftype( $3 ) ); }
	473	\| ALIGNOF unary_expression // GCC, variable alignment
	474	{ $$ = new ExpressionNode( build_alignOfexpr( $2 ) ); }
	475	\| ALIGNOF '(' type_name_no_function ')' // GCC, type alignment
	476	{ $$ = new ExpressionNode( build_alignOftype( $3 ) ); }
[5721a6d]	477	\| OFFSETOF '(' type_name_no_function ',' no_attr_identifier ')'
[d1625f8]	478	{ $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); }
[4d51835]	479	\| ATTR_IDENTIFIER
[d1625f8]	480	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), nullptr ) ); }
[4d51835]	481	\| ATTR_IDENTIFIER '(' argument_expression ')'
[d1625f8]	482	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), $3 ) ); }
	483	\| ATTR_IDENTIFIER '(' type_name ')'
	484	{ $$ = new ExpressionNode( build_attrtype( build_varref( $1 ), $3 ) ); }
[c6b1105]	485	// \| ANDAND IDENTIFIER // GCC, address of label
[d1625f8]	486	// { $$ = new ExpressionNode( new OperatorNode( OperKinds::LabelAddress ), new ExpressionNode( build_varref( $2, true ) ); }
[4d51835]	487	;
[51b73452]	488
[dd51906]	489	ptrref_operator:
[d9e2280]	490	'*' { $$ = OperKinds::PointTo; }
	491	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	492	// GCC, address of label must be handled by semantic check for ref,ref,label
[d9e2280]	493	// \| ANDAND { $$ = OperKinds::And; }
[dd51906]	494	;
	495
[51b73452]	496	unary_operator:
[d9e2280]	497	'+' { $$ = OperKinds::UnPlus; }
	498	\| '-' { $$ = OperKinds::UnMinus; }
	499	\| '!' { $$ = OperKinds::Neg; }
	500	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	501	;
[51b73452]	502
	503	cast_expression:
[4d51835]	504	unary_expression
	505	\| '(' type_name_no_function ')' cast_expression
[d1625f8]	506	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	507	\| '(' type_name_no_function ')' tuple
[d1625f8]	508	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	509	;
[51b73452]	510
	511	multiplicative_expression:
[4d51835]	512	cast_expression
	513	\| multiplicative_expression '*' cast_expression
[d1625f8]	514	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); }
[4d51835]	515	\| multiplicative_expression '/' cast_expression
[d1625f8]	516	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); }
[4d51835]	517	\| multiplicative_expression '%' cast_expression
[d1625f8]	518	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); }
[4d51835]	519	;
[51b73452]	520
	521	additive_expression:
[4d51835]	522	multiplicative_expression
	523	\| additive_expression '+' multiplicative_expression
[d1625f8]	524	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); }
[4d51835]	525	\| additive_expression '-' multiplicative_expression
[d1625f8]	526	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); }
[4d51835]	527	;
[51b73452]	528
	529	shift_expression:
[4d51835]	530	additive_expression
	531	\| shift_expression LS additive_expression
[d1625f8]	532	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); }
[4d51835]	533	\| shift_expression RS additive_expression
[d1625f8]	534	{ $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); }
[4d51835]	535	;
[51b73452]	536
	537	relational_expression:
[4d51835]	538	shift_expression
	539	\| relational_expression '<' shift_expression
[d1625f8]	540	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); }
[4d51835]	541	\| relational_expression '>' shift_expression
[d1625f8]	542	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); }
[4d51835]	543	\| relational_expression LE shift_expression
[d1625f8]	544	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	545	\| relational_expression GE shift_expression
[d1625f8]	546	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	547	;
[51b73452]	548
	549	equality_expression:
[4d51835]	550	relational_expression
	551	\| equality_expression EQ relational_expression
[d1625f8]	552	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); }
[4d51835]	553	\| equality_expression NE relational_expression
[d1625f8]	554	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); }
[4d51835]	555	;
[51b73452]	556
	557	AND_expression:
[4d51835]	558	equality_expression
	559	\| AND_expression '&' equality_expression
[d1625f8]	560	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	561	;
[51b73452]	562
	563	exclusive_OR_expression:
[4d51835]	564	AND_expression
	565	\| exclusive_OR_expression '^' AND_expression
[d1625f8]	566	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); }
[4d51835]	567	;
[51b73452]	568
	569	inclusive_OR_expression:
[4d51835]	570	exclusive_OR_expression
	571	\| inclusive_OR_expression '\|' exclusive_OR_expression
[d1625f8]	572	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	573	;
[51b73452]	574
	575	logical_AND_expression:
[4d51835]	576	inclusive_OR_expression
	577	\| logical_AND_expression ANDAND inclusive_OR_expression
[d1625f8]	578	{ $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); }
[4d51835]	579	;
[51b73452]	580
	581	logical_OR_expression:
[4d51835]	582	logical_AND_expression
	583	\| logical_OR_expression OROR logical_AND_expression
[d1625f8]	584	{ $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); }
[4d51835]	585	;
[51b73452]	586
	587	conditional_expression:
[4d51835]	588	logical_OR_expression
	589	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[d1625f8]	590	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[d9e2280]	591	// FIX ME: this hack computes $1 twice
[4d51835]	592	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[d1625f8]	593	{ $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); }
[4d51835]	594	\| logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression
[d1625f8]	595	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[4d51835]	596	;
[51b73452]	597
	598	constant_expression:
[4d51835]	599	conditional_expression
	600	;
[51b73452]	601
	602	assignment_expression:
[4d51835]	603	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	604	conditional_expression
	605	\| unary_expression assignment_operator assignment_expression
[d1625f8]	606	{ $$ = new ExpressionNode( build_binary_ptr( $2, $1, $3 ) ); }
[4d51835]	607	\| tuple assignment_opt // CFA, tuple expression
[d1625f8]	608	{ $$ = ( $2 == 0 ) ? $1 : new ExpressionNode( build_binary_ptr( OperKinds::Assign, $1, $2 ) ); }
[4d51835]	609	;
[51b73452]	610
	611	assignment_expression_opt:
[4d51835]	612	// empty
[d1625f8]	613	{ $$ = nullptr; }
[4d51835]	614	\| assignment_expression
	615	;
[b87a5ed]	616
[9706554]	617	assignment_operator:
[d9e2280]	618	'=' { $$ = OperKinds::Assign; }
[a839867]	619	\| ATassign { $$ = OperKinds::AtAssn; }
[d9e2280]	620	\| MULTassign { $$ = OperKinds::MulAssn; }
	621	\| DIVassign { $$ = OperKinds::DivAssn; }
	622	\| MODassign { $$ = OperKinds::ModAssn; }
	623	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	624	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	625	\| LSassign { $$ = OperKinds::LSAssn; }
	626	\| RSassign { $$ = OperKinds::RSAssn; }
	627	\| ANDassign { $$ = OperKinds::AndAssn; }
	628	\| ERassign { $$ = OperKinds::ERAssn; }
	629	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	630	;
[9706554]	631
[b87a5ed]	632	tuple: // CFA, tuple
[de62360d]	633	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
	634	// comma_expression in new_identifier_parameter_array and new_abstract_array
[2871210]	635	'[' ']'
[d1625f8]	636	{ $$ = new ExpressionNode( build_tuple() ); }
[4d51835]	637	\| '[' push assignment_expression pop ']'
[d1625f8]	638	{ $$ = new ExpressionNode( build_tuple( $3 ) ); }
[4d51835]	639	\| '[' push ',' tuple_expression_list pop ']'
[1d4580a]	640	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $4 ) ) ); }
[4d51835]	641	\| '[' push assignment_expression ',' tuple_expression_list pop ']'
[1d4580a]	642	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $5 ) ) ); }
[4d51835]	643	;
[51b73452]	644
	645	tuple_expression_list:
[4d51835]	646	assignment_expression_opt
	647	\| tuple_expression_list ',' assignment_expression_opt
[1d4580a]	648	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	649	;
[51b73452]	650
	651	comma_expression:
[4d51835]	652	assignment_expression
[9706554]	653	\| comma_expression ',' assignment_expression
[d1625f8]	654	{ $$ = new ExpressionNode( build_comma( $1, $3 ) ); }
[4d51835]	655	;
[51b73452]	656
	657	comma_expression_opt:
[4d51835]	658	// empty
	659	{ $$ = 0; }
	660	\| comma_expression
	661	;
[51b73452]	662
[c11e31c]	663	//************************* STATEMENTS *****************************
[51b73452]	664
	665	statement:
[4d51835]	666	labeled_statement
	667	\| compound_statement
	668	\| expression_statement { $$ = $1; }
	669	\| selection_statement
	670	\| iteration_statement
	671	\| jump_statement
	672	\| exception_statement
	673	\| asm_statement
[097e2b0]	674	\| '^' postfix_expression '{' argument_expression_list '}' ';' // CFA
	675	{
[d9e2280]	676	Token fn;
[2298f728]	677	fn.str = new string( "^?{}" ); // location undefined
[e82aa9df]	678	$$ = new StatementNode( build_expr( new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) ) ) );
[097e2b0]	679	}
[4d51835]	680	;
[51b73452]	681
	682	labeled_statement:
[c6b1105]	683	// labels cannot be identifiers 0 or 1
	684	IDENTIFIER ':' attribute_list_opt statement
[1db21619]	685	{
	686	$$ = $4->add_label( $1 );
	687	}
[4d51835]	688	;
[51b73452]	689
	690	compound_statement:
[4d51835]	691	'{' '}'
[e82aa9df]	692	{ $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); }
[4d51835]	693	\| '{'
[de62360d]	694	// Two scopes are necessary because the block itself has a scope, but every declaration within the block also
	695	// requires its own scope
[4d51835]	696	push push
[51b1202]	697	local_label_declaration_opt // GCC, local labels
[4d51835]	698	block_item_list pop '}' // C99, intermix declarations and statements
[e82aa9df]	699	{ $$ = new StatementNode( build_compound( $5 ) ); }
[4d51835]	700	;
[b87a5ed]	701
	702	block_item_list: // C99
[4d51835]	703	block_item
	704	\| block_item_list push block_item
[1d4580a]	705	{ if ( $1 != 0 ) { $1->set_last( $3 ); $$ = $1; } }
[4d51835]	706	;
[51b73452]	707
	708	block_item:
[4d51835]	709	declaration // CFA, new & old style declarations
[e82aa9df]	710	{ $$ = new StatementNode( $1 ); }
[4d51835]	711	\| EXTENSION declaration // GCC
[8e9cbb2]	712	{ // mark all fields in list
[926af74]	713	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	714	iter->set_extension( true );
[e82aa9df]	715	$$ = new StatementNode( $2 );
[8e9cbb2]	716	}
[4d51835]	717	\| function_definition
[e82aa9df]	718	{ $$ = new StatementNode( $1 ); }
[4d51835]	719	\| statement pop
	720	;
[51b73452]	721
	722	statement_list:
[4d51835]	723	statement
	724	\| statement_list statement
[1d4580a]	725	{ if ( $1 != 0 ) { $1->set_last( $2 ); $$ = $1; } }
[4d51835]	726	;
[51b73452]	727
	728	expression_statement:
[4d51835]	729	comma_expression_opt ';'
[e82aa9df]	730	{ $$ = new StatementNode( build_expr( $1 ) ); }
[4d51835]	731	;
[51b73452]	732
	733	selection_statement:
[4d51835]	734	IF '(' comma_expression ')' statement %prec THEN
	735	// explicitly deal with the shift/reduce conflict on if/else
[e82aa9df]	736	{ $$ = new StatementNode( build_if( $3, $5, nullptr ) ); }
[4d51835]	737	\| IF '(' comma_expression ')' statement ELSE statement
[e82aa9df]	738	{ $$ = new StatementNode( build_if( $3, $5, $7 ) ); }
[4d51835]	739	\| SWITCH '(' comma_expression ')' case_clause // CFA
[e82aa9df]	740	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	741	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
[4e06c1e]	742	{
[e82aa9df]	743	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
[4e06c1e]	744	// The semantics of the declaration list is changed to include associated initialization, which is performed
	745	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	746	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	747	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	748	// statement.
[e82aa9df]	749	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	750	}
[4d51835]	751	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[e82aa9df]	752	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	753	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA
[4e06c1e]	754	{
[e82aa9df]	755	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
	756	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	757	}
[4d51835]	758	;
[b87a5ed]	759
[de62360d]	760	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	761	// clause allows a list of values and subranges.
[b87a5ed]	762
	763	case_value: // CFA
[4d51835]	764	constant_expression { $$ = $1; }
	765	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[d1625f8]	766	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	767	\| subrange // CFA, subrange
	768	;
[b87a5ed]	769
	770	case_value_list: // CFA
[e82aa9df]	771	case_value { $$ = new StatementNode( build_case( $1 ) ); }
[064e3ff]	772	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[e82aa9df]	773	\| case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); }
[4d51835]	774	;
[b87a5ed]	775
	776	case_label: // CFA
[8688ce1]	777	CASE case_value_list ':' { $$ = $2; }
[e82aa9df]	778	\| DEFAULT ':' { $$ = new StatementNode( build_default() ); }
[4d51835]	779	// A semantic check is required to ensure only one default clause per switch/choose statement.
	780	;
[b87a5ed]	781
	782	case_label_list: // CFA
[4d51835]	783	case_label
[1d4580a]	784	\| case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); }
[4d51835]	785	;
[b87a5ed]	786
	787	case_clause: // CFA
[e82aa9df]	788	case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	789	;
[b87a5ed]	790
	791	switch_clause_list_opt: // CFA
[4d51835]	792	// empty
	793	{ $$ = 0; }
	794	\| switch_clause_list
	795	;
[b87a5ed]	796
	797	switch_clause_list: // CFA
[4d51835]	798	case_label_list statement_list
[e82aa9df]	799	{ $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	800	\| switch_clause_list case_label_list statement_list
[e82aa9df]	801	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); }
[4d51835]	802	;
[b87a5ed]	803
	804	choose_clause_list_opt: // CFA
[4d51835]	805	// empty
	806	{ $$ = 0; }
	807	\| choose_clause_list
	808	;
[b87a5ed]	809
	810	choose_clause_list: // CFA
[4d51835]	811	case_label_list fall_through
[de62360d]	812	{ $$ = $1->append_last_case( $2 ); }
[4d51835]	813	\| case_label_list statement_list fall_through_opt
[e82aa9df]	814	{ $$ = $1->append_last_case( new StatementNode( build_compound( (StatementNode *)$2->set_last( $3 ) ) ) ); }
[4d51835]	815	\| choose_clause_list case_label_list fall_through
[1d4580a]	816	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( $3 ))); }
[4d51835]	817	\| choose_clause_list case_label_list statement_list fall_through_opt
[e82aa9df]	818	{ $$ = (StatementNode )( $1->set_last( $2->append_last_case( new StatementNode( build_compound( (StatementNode )$3->set_last( $4 ) ) ) ) ) ); }
[4d51835]	819	;
[b87a5ed]	820
	821	fall_through_opt: // CFA
[4d51835]	822	// empty
[ab57786]	823	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } // insert implicit break
[4d51835]	824	\| fall_through
	825	;
[b87a5ed]	826
	827	fall_through: // CFA
[4e06c1e]	828	FALLTHRU
	829	{ $$ = 0; }
	830	\| FALLTHRU ';'
	831	{ $$ = 0; }
[4d51835]	832	;
[51b73452]	833
	834	iteration_statement:
[4d51835]	835	WHILE '(' comma_expression ')' statement
[e82aa9df]	836	{ $$ = new StatementNode( build_while( $3, $5 ) ); }
[4d51835]	837	\| DO statement WHILE '(' comma_expression ')' ';'
[5b639ee]	838	{ $$ = new StatementNode( build_while( $5, $2, true ) ); }
[4d51835]	839	\| FOR '(' push for_control_expression ')' statement
[e82aa9df]	840	{ $$ = new StatementNode( build_for( $4, $6 ) ); }
[4d51835]	841	;
[51b73452]	842
	843	for_control_expression:
[4d51835]	844	comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt
[2f22cc4]	845	{ $$ = new ForCtl( $1, $4, $6 ); }
[4d51835]	846	\| declaration comma_expression_opt ';' comma_expression_opt // C99
[2f22cc4]	847	{ $$ = new ForCtl( $1, $2, $4 ); }
[d1625f8]	848	;
[51b73452]	849
	850	jump_statement:
[c6b1105]	851	GOTO IDENTIFIER ';'
[ab57786]	852	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); }
[4d51835]	853	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	854	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	855	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	856	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[4d51835]	857	\| CONTINUE ';'
[de62360d]	858	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	859	{ $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); }
[4e06c1e]	860	\| CONTINUE IDENTIFIER ';' // CFA, multi-level continue
[de62360d]	861	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	862	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	863	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); }
[4d51835]	864	\| BREAK ';'
[de62360d]	865	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	866	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); }
[4e06c1e]	867	\| BREAK IDENTIFIER ';' // CFA, multi-level exit
[de62360d]	868	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	869	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	870	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); }
[4d51835]	871	\| RETURN comma_expression_opt ';'
[e82aa9df]	872	{ $$ = new StatementNode( build_return( $2 ) ); }
[8cc5cb0]	873	\| THROW assignment_expression_opt ';' // handles rethrow
[e82aa9df]	874	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	875	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[e82aa9df]	876	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	877	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[e82aa9df]	878	{ $$ = new StatementNode( build_throw( $2 ) ); }
[4d51835]	879	;
[51b73452]	880
	881	exception_statement:
[4d51835]	882	TRY compound_statement handler_list
[e82aa9df]	883	{ $$ = new StatementNode( build_try( $2, $3, 0 ) ); }
[4d51835]	884	\| TRY compound_statement finally_clause
[e82aa9df]	885	{ $$ = new StatementNode( build_try( $2, 0, $3 ) ); }
[4d51835]	886	\| TRY compound_statement handler_list finally_clause
[e82aa9df]	887	{ $$ = new StatementNode( build_try( $2, $3, $4 ) ); }
[4d51835]	888	;
[51b73452]	889
	890	handler_list:
[4d51835]	891	handler_clause
[de62360d]	892	// ISO/IEC 9899:1999 Section 15.3(6 ) If present, a "..." handler shall be the last handler for its try block.
[4d51835]	893	\| CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	894	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[4d51835]	895	\| handler_clause CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	896	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[02e5ab6]	897	\| CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	898	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[02e5ab6]	899	\| handler_clause CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	900	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[4d51835]	901	;
[51b73452]	902
	903	handler_clause:
[4d51835]	904	CATCH '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	905	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[4d51835]	906	\| handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop
[1b772749]	907	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[02e5ab6]	908	\| CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	909	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[02e5ab6]	910	\| handler_clause CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	911	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[4d51835]	912	;
[51b73452]	913
	914	finally_clause:
[4d51835]	915	FINALLY compound_statement
	916	{
[e82aa9df]	917	$$ = new StatementNode( build_finally( $2 ) );
[4d51835]	918	}
	919	;
[51b73452]	920
	921	exception_declaration:
[4d51835]	922	// A semantic check is required to ensure type_specifier does not create a new type, e.g.:
	923	//
	924	// catch ( struct { int i; } x ) ...
	925	//
	926	// This new type cannot catch any thrown type because of name equivalence among types.
	927	type_specifier
	928	\| type_specifier declarator
	929	{
	930	typedefTable.addToEnclosingScope( TypedefTable::ID );
	931	$$ = $2->addType( $1 );
	932	}
	933	\| type_specifier variable_abstract_declarator
	934	{ $$ = $2->addType( $1 ); }
	935	\| new_abstract_declarator_tuple no_attr_identifier // CFA
	936	{
	937	typedefTable.addToEnclosingScope( TypedefTable::ID );
	938	$$ = $1->addName( $2 );
	939	}
	940	\| new_abstract_declarator_tuple // CFA
	941	;
[51b73452]	942
	943	asm_statement:
[ab57786]	944	ASM asm_volatile_opt '(' string_literal ')' ';'
[e82aa9df]	945	{ $$ = new StatementNode( build_asmstmt( $2, $4, 0 ) ); }
[ab57786]	946	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[e82aa9df]	947	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6 ) ); }
[ab57786]	948	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[e82aa9df]	949	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8 ) ); }
[ab57786]	950	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[e82aa9df]	951	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8, $10 ) ); }
[ab57786]	952	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[e82aa9df]	953	{ $$ = new StatementNode( build_asmstmt( $2, $5, 0, $8, $10, $12 ) ); }
[7f5566b]	954	;
	955
	956	asm_volatile_opt: // GCC
	957	// empty
	958	{ $$ = false; }
	959	\| VOLATILE
	960	{ $$ = true; }
[4d51835]	961	;
[b87a5ed]	962
	963	asm_operands_opt: // GCC
[4d51835]	964	// empty
[7f5566b]	965	{ $$ = 0; } // use default argument
[4d51835]	966	\| asm_operands_list
	967	;
[b87a5ed]	968
	969	asm_operands_list: // GCC
[4d51835]	970	asm_operand
	971	\| asm_operands_list ',' asm_operand
[1d4580a]	972	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	973	;
[b87a5ed]	974
	975	asm_operand: // GCC
[ab57786]	976	string_literal '(' constant_expression ')'
[e82aa9df]	977	{ $$ = new ExpressionNode( build_asmexpr( 0, $1, $3 ) ); }
[ab57786]	978	\| '[' constant_expression ']' string_literal '(' constant_expression ')'
[1b772749]	979	{ $$ = new ExpressionNode( build_asmexpr( $2, $4, $6 ) ); }
[7f5566b]	980	;
	981
[4e06c1e]	982	asm_clobbers_list_opt: // GCC
[7f5566b]	983	// empty
	984	{ $$ = 0; } // use default argument
[ab57786]	985	\| string_literal
[d1625f8]	986	{ $$ = new ExpressionNode( $1 ); }
[ab57786]	987	\| asm_clobbers_list_opt ',' string_literal
[e82aa9df]	988	{ $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); }
[4d51835]	989	;
[b87a5ed]	990
[7f5566b]	991	label_list:
	992	no_attr_identifier
[ab57786]	993	{
	994	$$ = new LabelNode(); $$->labels.push_back( *$1 );
	995	delete $1; // allocated by lexer
	996	}
[7f5566b]	997	\| label_list ',' no_attr_identifier
[ab57786]	998	{
	999	$$ = $1; $1->labels.push_back( *$3 );
	1000	delete $3; // allocated by lexer
	1001	}
[4d51835]	1002	;
[51b73452]	1003
[c11e31c]	1004	//***************************** DECLARATIONS *******************************
[51b73452]	1005
[b87a5ed]	1006	declaration_list_opt: // used at beginning of switch statement
[4d51835]	1007	pop
	1008	{ $$ = 0; }
	1009	\| declaration_list
	1010	;
[51b73452]	1011
	1012	declaration_list:
[4d51835]	1013	declaration
	1014	\| declaration_list push declaration
	1015	{ $$ = $1->appendList( $3 ); }
	1016	;
[51b73452]	1017
[b87a5ed]	1018	old_declaration_list_opt: // used to declare parameter types in K&R style functions
[4d51835]	1019	pop
	1020	{ $$ = 0; }
	1021	\| old_declaration_list
	1022	;
[51b73452]	1023
	1024	old_declaration_list:
[4d51835]	1025	old_declaration
	1026	\| old_declaration_list push old_declaration
	1027	{ $$ = $1->appendList( $3 ); }
	1028	;
[b87a5ed]	1029
[51b1202]	1030	local_label_declaration_opt: // GCC, local label
[4d51835]	1031	// empty
[51b1202]	1032	\| local_label_declaration_list
[4d51835]	1033	;
[b87a5ed]	1034
[51b1202]	1035	local_label_declaration_list: // GCC, local label
	1036	LABEL local_label_list ';'
	1037	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1038	;
[b87a5ed]	1039
[51b1202]	1040	local_label_list: // GCC, local label
[7f5566b]	1041	no_attr_identifier_or_type_name {}
[51b1202]	1042	\| local_label_list ',' no_attr_identifier_or_type_name {}
[4d51835]	1043	;
[b87a5ed]	1044
	1045	declaration: // CFA, new & old style declarations
[4d51835]	1046	new_declaration
	1047	\| old_declaration
	1048	;
[b87a5ed]	1049
[de62360d]	1050	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1051	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1052	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1053	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1054	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1055	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1056	//
[b87a5ed]	1057	// CFA C
	1058	// [10] int x; int x[10]; // array of 10 integers
	1059	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1060
	1061	new_declaration: // CFA
[4d51835]	1062	new_variable_declaration pop ';'
	1063	\| new_typedef_declaration pop ';'
	1064	\| new_function_declaration pop ';'
	1065	\| type_declaring_list pop ';'
[4040425]	1066	\| trait_specifier pop ';'
[4d51835]	1067	;
[b87a5ed]	1068
	1069	new_variable_declaration: // CFA
[4d51835]	1070	new_variable_specifier initializer_opt
	1071	{
	1072	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1073	$$ = $1->addInitializer( $2 );
[4d51835]	1074	}
	1075	\| declaration_qualifier_list new_variable_specifier initializer_opt
[de62360d]	1076	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	1077	// them as a type_qualifier cannot appear in that context.
[4d51835]	1078	{
	1079	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1080	$$ = $2->addQualifiers( $1 )->addInitializer( $3 );;
[4d51835]	1081	}
[2871210]	1082	\| new_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[4d51835]	1083	{
	1084	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
[3cfe27f]	1085	$$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) );
[4d51835]	1086	}
	1087	;
[b87a5ed]	1088
	1089	new_variable_specifier: // CFA
[de62360d]	1090	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1091	// storage-class
[2871210]	1092	new_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[4d51835]	1093	{
	1094	typedefTable.setNextIdentifier( *$2 );
	1095	$$ = $1->addName( $2 );
	1096	}
[2871210]	1097	\| new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1098	{
	1099	typedefTable.setNextIdentifier( *$2 );
	1100	$$ = $1->addName( $2 );
	1101	}
[2871210]	1102	\| type_qualifier_list new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1103	{
	1104	typedefTable.setNextIdentifier( *$3 );
	1105	$$ = $2->addQualifiers( $1 )->addName( $3 );
	1106	}
	1107	;
[b87a5ed]	1108
	1109	new_function_declaration: // CFA
[4d51835]	1110	new_function_specifier
	1111	{
	1112	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1113	$$ = $1;
	1114	}
	1115	\| type_qualifier_list new_function_specifier
	1116	{
	1117	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1118	$$ = $2->addQualifiers( $1 );
	1119	}
	1120	\| declaration_qualifier_list new_function_specifier
	1121	{
	1122	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1123	$$ = $2->addQualifiers( $1 );
	1124	}
	1125	\| declaration_qualifier_list type_qualifier_list new_function_specifier
	1126	{
	1127	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1128	$$ = $3->addQualifiers( $1 )->addQualifiers( $2 );
	1129	}
[2871210]	1130	\| new_function_declaration pop ',' push identifier_or_type_name
[4d51835]	1131	{
	1132	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
	1133	$$ = $1->appendList( $1->cloneType( $5 ) );
	1134	}
	1135	;
[b87a5ed]	1136
	1137	new_function_specifier: // CFA
[2871210]	1138	'[' ']' identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' // S/R conflict
[4d51835]	1139	{
[2871210]	1140	$$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
[4d51835]	1141	}
[2871210]	1142	// '[' ']' identifier '(' push new_parameter_type_list_opt pop ')'
	1143	// {
	1144	// typedefTable.setNextIdentifier( *$5 );
	1145	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1146	// }
	1147	// \| '[' ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')'
	1148	// {
	1149	// typedefTable.setNextIdentifier( *$5 );
	1150	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1151	// }
	1152	// \| '[' ']' typegen_name
	1153	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	1154	//
[2871210]	1155	// '[' ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[4d51835]	1156	// '[' ']' type_specifier
	1157	//
[2871210]	1158	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	1159	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
	1160	\| new_abstract_tuple identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[de62360d]	1161	// To obtain LR(1 ), this rule must be factored out from function return type (see new_abstract_declarator).
[4d51835]	1162	{
	1163	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1164	}
[2871210]	1165	\| new_function_return identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[4d51835]	1166	{
	1167	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1168	}
	1169	;
[b87a5ed]	1170
	1171	new_function_return: // CFA
[4d51835]	1172	'[' push new_parameter_list pop ']'
	1173	{ $$ = DeclarationNode::newTuple( $3 ); }
	1174	\| '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']'
[de62360d]	1175	// To obtain LR(1 ), the last new_abstract_parameter_list is added into this flattened rule to lookahead to the
	1176	// ']'.
[4d51835]	1177	{ $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
	1178	;
[b87a5ed]	1179
	1180	new_typedef_declaration: // CFA
[4d51835]	1181	TYPEDEF new_variable_specifier
	1182	{
[de62360d]	1183	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1184	$$ = $2->addTypedef();
	1185	}
	1186	\| TYPEDEF new_function_specifier
	1187	{
[de62360d]	1188	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1189	$$ = $2->addTypedef();
	1190	}
	1191	\| new_typedef_declaration pop ',' push no_attr_identifier
	1192	{
[de62360d]	1193	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1194	$$ = $1->appendList( $1->cloneType( $5 ) );
	1195	}
	1196	;
[b87a5ed]	1197
[de62360d]	1198	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	1199	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	1200
	1201	typedef_declaration:
[4d51835]	1202	TYPEDEF type_specifier declarator
	1203	{
[de62360d]	1204	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1205	$$ = $3->addType( $2 )->addTypedef();
	1206	}
	1207	\| typedef_declaration pop ',' push declarator
	1208	{
[de62360d]	1209	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1210	$$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
	1211	}
[de62360d]	1212	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[4d51835]	1213	{
[de62360d]	1214	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1215	$$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
	1216	}
	1217	\| type_specifier TYPEDEF declarator
	1218	{
[de62360d]	1219	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1220	$$ = $3->addType( $1 )->addTypedef();
	1221	}
	1222	\| type_specifier TYPEDEF type_qualifier_list declarator
	1223	{
[de62360d]	1224	typedefTable.addToEnclosingScope( TypedefTable::TD );
	1225	$$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
[4d51835]	1226	}
	1227	;
[b87a5ed]	1228
[721f17a]	1229	typedef_expression:
	1230	// GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[4d51835]	1231	TYPEDEF no_attr_identifier '=' assignment_expression
	1232	{
[de62360d]	1233	typedefTable.addToEnclosingScope( *$2, TypedefTable::TD );
[4d51835]	1234	$$ = DeclarationNode::newName( 0 ); // XXX
	1235	}
	1236	\| typedef_expression pop ',' push no_attr_identifier '=' assignment_expression
	1237	{
[de62360d]	1238	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1239	$$ = DeclarationNode::newName( 0 ); // XXX
	1240	}
	1241	;
[51b73452]	1242
	1243	old_declaration:
[4d51835]	1244	declaring_list pop ';'
	1245	\| typedef_declaration pop ';'
	1246	\| typedef_expression pop ';' // GCC, naming expression type
	1247	\| sue_declaration_specifier pop ';'
	1248	;
[51b73452]	1249
	1250	declaring_list:
[de62360d]	1251	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1252	// storage-class
[4d51835]	1253	declaration_specifier declarator asm_name_opt initializer_opt
	1254	{
	1255	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1256	$$ = ( $2->addType( $1 ))->addInitializer( $4 );
[4d51835]	1257	}
	1258	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
	1259	{
	1260	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1261	$$ = $1->appendList( $1->cloneBaseType( $4->addInitializer( $6 ) ) );
[4d51835]	1262	}
	1263	;
[b87a5ed]	1264
	1265	declaration_specifier: // type specifier + storage class
[4d51835]	1266	basic_declaration_specifier
	1267	\| sue_declaration_specifier
	1268	\| typedef_declaration_specifier
	1269	\| typegen_declaration_specifier
	1270	;
[b87a5ed]	1271
	1272	type_specifier: // declaration specifier - storage class
[4d51835]	1273	basic_type_specifier
	1274	\| sue_type_specifier
	1275	\| typedef_type_specifier
	1276	\| typegen_type_specifier
	1277	;
[b87a5ed]	1278
	1279	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	1280	// empty
	1281	{ $$ = 0; }
	1282	\| type_qualifier_list
	1283	;
[51b73452]	1284
	1285	type_qualifier_list:
[de62360d]	1286	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	1287	//
[de62360d]	1288	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	1289	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	1290	// appeared only once.
[4d51835]	1291	type_qualifier
	1292	\| type_qualifier_list type_qualifier
	1293	{ $$ = $1->addQualifiers( $2 ); }
	1294	;
[51b73452]	1295
	1296	type_qualifier:
[4d51835]	1297	type_qualifier_name
	1298	\| attribute
[c1c1112]	1299	//{ $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
[4d51835]	1300	;
[51b73452]	1301
	1302	type_qualifier_name:
[4d51835]	1303	CONST
	1304	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); }
	1305	\| RESTRICT
	1306	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); }
	1307	\| VOLATILE
	1308	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); }
	1309	\| LVALUE // CFA
	1310	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); }
	1311	\| ATOMIC
	1312	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); }
	1313	\| FORALL '('
	1314	{
	1315	typedefTable.enterScope();
	1316	}
	1317	type_parameter_list ')' // CFA
	1318	{
	1319	typedefTable.leaveScope();
	1320	$$ = DeclarationNode::newForall( $4 );
	1321	}
	1322	;
[51b73452]	1323
	1324	declaration_qualifier_list:
[4d51835]	1325	storage_class_list
[de62360d]	1326	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	1327	{ $$ = $1->addQualifiers( $2 ); }
	1328	\| declaration_qualifier_list type_qualifier_list storage_class_list
	1329	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1330	;
[51b73452]	1331
	1332	storage_class_list:
[de62360d]	1333	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	1334	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	1335	//
[de62360d]	1336	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	1337	// specifiers in a declaration.
[4d51835]	1338	storage_class
	1339	\| storage_class_list storage_class
	1340	{ $$ = $1->addQualifiers( $2 ); }
	1341	;
[51b73452]	1342
	1343	storage_class:
[4d51835]	1344	EXTERN
	1345	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); }
	1346	\| STATIC
	1347	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); }
	1348	\| AUTO
	1349	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); }
	1350	\| REGISTER
	1351	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); }
	1352	\| INLINE // C99
[c1c1112]	1353	//{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); }
	1354	{ $$ = new DeclarationNode; $$->isInline = true; }
[4d51835]	1355	\| FORTRAN // C99
	1356	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); }
[68cd1ce]	1357	\| NORETURN // C11
[c1c1112]	1358	//{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Noreturn ); }
	1359	{ $$ = new DeclarationNode; $$->isNoreturn = true; }
[68cd1ce]	1360	\| THREADLOCAL // C11
	1361	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Threadlocal ); }
[4d51835]	1362	;
[51b73452]	1363
	1364	basic_type_name:
[4d51835]	1365	CHAR
	1366	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
	1367	\| DOUBLE
	1368	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
	1369	\| FLOAT
	1370	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
	1371	\| INT
	1372	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
	1373	\| LONG
[5b639ee]	1374	{ $$ = DeclarationNode::newLength( DeclarationNode::Long ); }
[4d51835]	1375	\| SHORT
[5b639ee]	1376	{ $$ = DeclarationNode::newLength( DeclarationNode::Short ); }
[4d51835]	1377	\| SIGNED
[5b639ee]	1378	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); }
[4d51835]	1379	\| UNSIGNED
[5b639ee]	1380	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); }
[4d51835]	1381	\| VOID
	1382	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1383	\| BOOL // C99
	1384	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
	1385	\| COMPLEX // C99
[5b639ee]	1386	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); }
[4d51835]	1387	\| IMAGINARY // C99
[5b639ee]	1388	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); }
[90c3b1c]	1389	\| VALIST // GCC, __builtin_va_list
	1390	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); }
[4d51835]	1391	;
[51b73452]	1392
	1393	basic_declaration_specifier:
[4d51835]	1394	// A semantic check is necessary for conflicting storage classes.
	1395	basic_type_specifier
	1396	\| declaration_qualifier_list basic_type_specifier
	1397	{ $$ = $2->addQualifiers( $1 ); }
	1398	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1399	{ $$ = $1->addQualifiers( $2 ); }
	1400	\| basic_declaration_specifier storage_class type_qualifier_list
	1401	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1402	\| basic_declaration_specifier storage_class basic_type_specifier
	1403	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	1404	;
[51b73452]	1405
	1406	basic_type_specifier:
[4d51835]	1407	direct_type_name
	1408	\| type_qualifier_list_opt indirect_type_name type_qualifier_list_opt
	1409	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	1410	;
[51b73452]	1411
	1412	direct_type_name:
[4d51835]	1413	// A semantic check is necessary for conflicting type qualifiers.
	1414	basic_type_name
	1415	\| type_qualifier_list basic_type_name
	1416	{ $$ = $2->addQualifiers( $1 ); }
	1417	\| direct_type_name type_qualifier
	1418	{ $$ = $1->addQualifiers( $2 ); }
	1419	\| direct_type_name basic_type_name
	1420	{ $$ = $1->addType( $2 ); }
	1421	;
[51b73452]	1422
	1423	indirect_type_name:
[4d51835]	1424	TYPEOF '(' type_name ')' // GCC: typeof(x) y;
	1425	{ $$ = $3; }
	1426	\| TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y;
	1427	{ $$ = DeclarationNode::newTypeof( $3 ); }
	1428	\| ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y;
	1429	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1430	\| ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y;
	1431	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1432	;
[51b73452]	1433
	1434	sue_declaration_specifier:
[4d51835]	1435	sue_type_specifier
	1436	\| declaration_qualifier_list sue_type_specifier
	1437	{ $$ = $2->addQualifiers( $1 ); }
	1438	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1439	{ $$ = $1->addQualifiers( $2 ); }
	1440	\| sue_declaration_specifier storage_class type_qualifier_list
	1441	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1442	;
[51b73452]	1443
	1444	sue_type_specifier:
[4d51835]	1445	elaborated_type_name // struct, union, enum
	1446	\| type_qualifier_list elaborated_type_name
	1447	{ $$ = $2->addQualifiers( $1 ); }
	1448	\| sue_type_specifier type_qualifier
	1449	{ $$ = $1->addQualifiers( $2 ); }
	1450	;
[51b73452]	1451
	1452	typedef_declaration_specifier:
[4d51835]	1453	typedef_type_specifier
	1454	\| declaration_qualifier_list typedef_type_specifier
	1455	{ $$ = $2->addQualifiers( $1 ); }
	1456	\| typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1457	{ $$ = $1->addQualifiers( $2 ); }
	1458	\| typedef_declaration_specifier storage_class type_qualifier_list
	1459	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1460	;
[b87a5ed]	1461
	1462	typedef_type_specifier: // typedef types
[4d51835]	1463	TYPEDEFname
	1464	{ $$ = DeclarationNode::newFromTypedef( $1 ); }
	1465	\| type_qualifier_list TYPEDEFname
	1466	{ $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); }
	1467	\| typedef_type_specifier type_qualifier
	1468	{ $$ = $1->addQualifiers( $2 ); }
	1469	;
[51b73452]	1470
	1471	elaborated_type_name:
[4d51835]	1472	aggregate_name
	1473	\| enum_name
	1474	;
[51b73452]	1475
	1476	aggregate_name:
[4d51835]	1477	aggregate_key '{' field_declaration_list '}'
[2298f728]	1478	{ $$ = DeclarationNode::newAggregate( $1, nullptr, nullptr, $3, true ); }
[2871210]	1479	\| aggregate_key no_attr_identifier_or_type_name
[45161b4d]	1480	{
	1481	typedefTable.makeTypedef( *$2 );
[2298f728]	1482	$$ = DeclarationNode::newAggregate( $1, $2, nullptr, nullptr, false );
[45161b4d]	1483	}
	1484	\| aggregate_key no_attr_identifier_or_type_name
	1485	{ typedefTable.makeTypedef( *$2 ); }
	1486	'{' field_declaration_list '}'
[1b772749]	1487	{ $$ = DeclarationNode::newAggregate( $1, $2, nullptr, $5, true ); }
[721f17a]	1488	\| aggregate_key '(' type_name_list ')' '{' field_declaration_list '}' // CFA
[2298f728]	1489	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $3, $6, false ); }
[2871210]	1490	\| aggregate_key typegen_name // CFA, S/R conflict
	1491	{ $$ = $2; }
[4d51835]	1492	;
[51b73452]	1493
	1494	aggregate_key:
[4d51835]	1495	STRUCT attribute_list_opt
	1496	{ $$ = DeclarationNode::Struct; }
	1497	\| UNION attribute_list_opt
	1498	{ $$ = DeclarationNode::Union; }
	1499	;
[51b73452]	1500
	1501	field_declaration_list:
[5d125e4]	1502	// empty
	1503	{ $$ = 0; }
[4d51835]	1504	\| field_declaration_list field_declaration
[5d125e4]	1505	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1506	;
[51b73452]	1507
	1508	field_declaration:
[4d51835]	1509	new_field_declaring_list ';' // CFA, new style field declaration
	1510	\| EXTENSION new_field_declaring_list ';' // GCC
[ca35c51]	1511	{ $$ = $2->set_extension( true ); }
[4d51835]	1512	\| field_declaring_list ';'
	1513	\| EXTENSION field_declaring_list ';' // GCC
[8e9cbb2]	1514	{ // mark all fields in list
[926af74]	1515	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	1516	iter->set_extension( true );
	1517	$$ = $2;
	1518	}
[4d51835]	1519	;
[b87a5ed]	1520
	1521	new_field_declaring_list: // CFA, new style field declaration
[4d51835]	1522	new_abstract_declarator_tuple // CFA, no field name
[2871210]	1523	\| new_abstract_declarator_tuple no_attr_identifier_or_type_name
[4d51835]	1524	{ $$ = $1->addName( $2 ); }
[2871210]	1525	\| new_field_declaring_list ',' no_attr_identifier_or_type_name
[4d51835]	1526	{ $$ = $1->appendList( $1->cloneType( $3 ) ); }
	1527	\| new_field_declaring_list ',' // CFA, no field name
	1528	{ $$ = $1->appendList( $1->cloneType( 0 ) ); }
	1529	;
[51b73452]	1530
	1531	field_declaring_list:
[4d51835]	1532	type_specifier field_declarator
	1533	{ $$ = $2->addType( $1 ); }
	1534	\| field_declaring_list ',' attribute_list_opt field_declarator
	1535	{ $$ = $1->appendList( $1->cloneBaseType( $4 ) ); }
	1536	;
[51b73452]	1537
	1538	field_declarator:
[4d51835]	1539	// empty
	1540	{ $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name
	1541	\| bit_subrange_size // no field name
	1542	{ $$ = DeclarationNode::newBitfield( $1 ); }
	1543	\| variable_declarator bit_subrange_size_opt
	1544	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1545	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	1546	\| variable_type_redeclarator bit_subrange_size_opt
[4d51835]	1547	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1548	{ $$ = $1->addBitfield( $2 ); }
	1549	\| variable_abstract_declarator // CFA, no field name
	1550	;
[51b73452]	1551
	1552	bit_subrange_size_opt:
[4d51835]	1553	// empty
	1554	{ $$ = 0; }
	1555	\| bit_subrange_size
	1556	{ $$ = $1; }
	1557	;
[51b73452]	1558
	1559	bit_subrange_size:
[4d51835]	1560	':' constant_expression
	1561	{ $$ = $2; }
	1562	;
[51b73452]	1563
	1564	enum_key:
[4d51835]	1565	ENUM attribute_list_opt
	1566	;
[51b73452]	1567
	1568	enum_name:
[4d51835]	1569	enum_key '{' enumerator_list comma_opt '}'
[2298f728]	1570	{ $$ = DeclarationNode::newEnum( nullptr, $3 ); }
[2871210]	1571	\| enum_key no_attr_identifier_or_type_name
[45161b4d]	1572	{
	1573	typedefTable.makeTypedef( *$2 );
	1574	$$ = DeclarationNode::newEnum( $2, 0 );
	1575	}
	1576	\| enum_key no_attr_identifier_or_type_name
	1577	{ typedefTable.makeTypedef( *$2 ); }
	1578	'{' enumerator_list comma_opt '}'
	1579	{ $$ = DeclarationNode::newEnum( $2, $5 ); }
[4d51835]	1580	;
[51b73452]	1581
	1582	enumerator_list:
[2871210]	1583	no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1584	{ $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
[2871210]	1585	\| enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1586	{ $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
	1587	;
[51b73452]	1588
	1589	enumerator_value_opt:
[4d51835]	1590	// empty
	1591	{ $$ = 0; }
	1592	\| '=' constant_expression
	1593	{ $$ = $2; }
	1594	;
[51b73452]	1595
[c11e31c]	1596	// Minimum of one parameter after which ellipsis is allowed only at the end.
[51b73452]	1597
[b87a5ed]	1598	new_parameter_type_list_opt: // CFA
[4d51835]	1599	// empty
	1600	{ $$ = 0; }
	1601	\| new_parameter_type_list
	1602	;
[b87a5ed]	1603
	1604	new_parameter_type_list: // CFA, abstract + real
[4d51835]	1605	new_abstract_parameter_list
	1606	\| new_parameter_list
	1607	\| new_parameter_list pop ',' push new_abstract_parameter_list
	1608	{ $$ = $1->appendList( $5 ); }
	1609	\| new_abstract_parameter_list pop ',' push ELLIPSIS
	1610	{ $$ = $1->addVarArgs(); }
	1611	\| new_parameter_list pop ',' push ELLIPSIS
	1612	{ $$ = $1->addVarArgs(); }
	1613	;
[b87a5ed]	1614
	1615	new_parameter_list: // CFA
[de62360d]	1616	// To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last new_abstract_parameter_list is
	1617	// factored out from new_parameter_list, flattening the rules to get lookahead to the ']'.
[4d51835]	1618	new_parameter_declaration
	1619	\| new_abstract_parameter_list pop ',' push new_parameter_declaration
	1620	{ $$ = $1->appendList( $5 ); }
	1621	\| new_parameter_list pop ',' push new_parameter_declaration
	1622	{ $$ = $1->appendList( $5 ); }
	1623	\| new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration
	1624	{ $$ = $1->appendList( $5 )->appendList( $9 ); }
	1625	;
[b87a5ed]	1626
	1627	new_abstract_parameter_list: // CFA, new & old style abstract
[4d51835]	1628	new_abstract_parameter_declaration
	1629	\| new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration
	1630	{ $$ = $1->appendList( $5 ); }
	1631	;
[51b73452]	1632
	1633	parameter_type_list_opt:
[4d51835]	1634	// empty
	1635	{ $$ = 0; }
	1636	\| parameter_type_list
	1637	;
[51b73452]	1638
	1639	parameter_type_list:
[4d51835]	1640	parameter_list
	1641	\| parameter_list pop ',' push ELLIPSIS
	1642	{ $$ = $1->addVarArgs(); }
	1643	;
[b87a5ed]	1644
	1645	parameter_list: // abstract + real
[4d51835]	1646	abstract_parameter_declaration
	1647	\| parameter_declaration
	1648	\| parameter_list pop ',' push abstract_parameter_declaration
	1649	{ $$ = $1->appendList( $5 ); }
	1650	\| parameter_list pop ',' push parameter_declaration
	1651	{ $$ = $1->appendList( $5 ); }
	1652	;
[51b73452]	1653
[de62360d]	1654	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	1655	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	1656
[b87a5ed]	1657	new_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1658	parameter_declaration
[2871210]	1659	\| new_identifier_parameter_declarator_no_tuple identifier_or_type_name assignment_opt
[4d51835]	1660	{ $$ = $1->addName( $2 ); }
[2871210]	1661	\| new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1662	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1663	{ $$ = $1->addName( $2 ); }
[2871210]	1664	\| type_qualifier_list new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1665	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
	1666	\| new_function_specifier
	1667	;
[b87a5ed]	1668
	1669	new_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1670	abstract_parameter_declaration
	1671	\| new_identifier_parameter_declarator_no_tuple
	1672	\| new_abstract_tuple
	1673	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1674	\| type_qualifier_list new_abstract_tuple
	1675	{ $$ = $2->addQualifiers( $1 ); }
	1676	\| new_abstract_function
	1677	;
[51b73452]	1678
	1679	parameter_declaration:
[4d51835]	1680	declaration_specifier identifier_parameter_declarator assignment_opt
	1681	{
	1682	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1683	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1684	}
[2871210]	1685	\| declaration_specifier type_parameter_redeclarator assignment_opt
[4d51835]	1686	{
	1687	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1688	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1689	}
	1690	;
[51b73452]	1691
	1692	abstract_parameter_declaration:
[4d51835]	1693	declaration_specifier
	1694	\| declaration_specifier abstract_parameter_declarator
	1695	{ $$ = $2->addType( $1 ); }
	1696	;
[51b73452]	1697
[c11e31c]	1698	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	1699	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	1700	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	1701
[b87a5ed]	1702	identifier_list: // K&R-style parameter list => no types
[4d51835]	1703	no_attr_identifier
	1704	{ $$ = DeclarationNode::newName( $1 ); }
	1705	\| identifier_list ',' no_attr_identifier
	1706	{ $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
	1707	;
[51b73452]	1708
[2871210]	1709	identifier_or_type_name:
[4d51835]	1710	identifier
	1711	\| TYPEDEFname
	1712	\| TYPEGENname
	1713	;
[51b73452]	1714
[2871210]	1715	no_01_identifier_or_type_name:
[4d51835]	1716	no_01_identifier
	1717	\| TYPEDEFname
	1718	\| TYPEGENname
	1719	;
[51b73452]	1720
[2871210]	1721	no_attr_identifier_or_type_name:
[4d51835]	1722	no_attr_identifier
	1723	\| TYPEDEFname
[721f17a]	1724	\| TYPEGENname
[4d51835]	1725	;
[b87a5ed]	1726
	1727	type_name_no_function: // sizeof, alignof, cast (constructor)
[4d51835]	1728	new_abstract_declarator_tuple // CFA
	1729	\| type_specifier
	1730	\| type_specifier variable_abstract_declarator
	1731	{ $$ = $2->addType( $1 ); }
	1732	;
[b87a5ed]	1733
	1734	type_name: // typeof, assertion
[4d51835]	1735	new_abstract_declarator_tuple // CFA
	1736	\| new_abstract_function // CFA
	1737	\| type_specifier
	1738	\| type_specifier abstract_declarator
	1739	{ $$ = $2->addType( $1 ); }
	1740	;
[51b73452]	1741
	1742	initializer_opt:
[4d51835]	1743	// empty
	1744	{ $$ = 0; }
[2871210]	1745	\| '=' initializer
	1746	{ $$ = $2; }
[097e2b0]	1747	\| ATassign initializer
[974906e2]	1748	{ $$ = $2->set_maybeConstructed( false ); }
[4d51835]	1749	;
[51b73452]	1750
	1751	initializer:
[de62360d]	1752	assignment_expression { $$ = new InitializerNode( $1 ); }
	1753	\| '{' initializer_list comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	1754	;
[51b73452]	1755
	1756	initializer_list:
[097e2b0]	1757	// empty
	1758	{ $$ = 0; }
	1759	\| initializer
[4d51835]	1760	\| designation initializer { $$ = $2->set_designators( $1 ); }
[1d4580a]	1761	\| initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); }
[4d51835]	1762	\| initializer_list ',' designation initializer
[1d4580a]	1763	{ $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); }
[4d51835]	1764	;
[b87a5ed]	1765
[de62360d]	1766	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	1767	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	1768	//
[b87a5ed]	1769	// int x[10] = { [1] = 3 };
[c11e31c]	1770	//
[de62360d]	1771	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	1772	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	1773	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	1774	// shift/reduce conflicts
[51b73452]	1775
	1776	designation:
[4d51835]	1777	designator_list ':' // C99, CFA uses ":" instead of "="
[2871210]	1778	\| no_attr_identifier_or_type_name ':' // GCC, field name
[d1625f8]	1779	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	1780	;
[51b73452]	1781
[b87a5ed]	1782	designator_list: // C99
[4d51835]	1783	designator
[2871210]	1784	\| designator_list designator
[1d4580a]	1785	{ $$ = (ExpressionNode *)( $1->set_last( $2 ) ); }
[d1625f8]	1786	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	1787	;
[51b73452]	1788
	1789	designator:
[d1625f8]	1790	'.' no_attr_identifier_or_type_name // C99, field name
	1791	{ $$ = new ExpressionNode( build_varref( $2 ) ); }
[4d51835]	1792	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	1793	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	1794	{ $$ = $3; }
[4d51835]	1795	\| '[' push subrange pop ']' // CFA, multiple array elements
[d1625f8]	1796	{ $$ = $3; }
[4d51835]	1797	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[d1625f8]	1798	{ $$ = new ExpressionNode( build_range( $3, $5 ) ); }
[4d51835]	1799	\| '.' '[' push field_list pop ']' // CFA, tuple field selector
[d1625f8]	1800	{ $$ = $4; }
[4d51835]	1801	;
[51b73452]	1802
[de62360d]	1803	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	1804	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	1805	//
	1806	// Overloading: function, data, and operator identifiers may be overloaded.
	1807	//
[de62360d]	1808	// Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
	1809	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	1810	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	1811	//
[de62360d]	1812	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	1813	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	1814	//
	1815	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	1816	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	1817	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	1818	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	1819	// on type arguments of polymorphic functions.
[c11e31c]	1820
[b87a5ed]	1821	typegen_declaration_specifier: // CFA
[4d51835]	1822	typegen_type_specifier
	1823	\| declaration_qualifier_list typegen_type_specifier
	1824	{ $$ = $2->addQualifiers( $1 ); }
	1825	\| typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1826	{ $$ = $1->addQualifiers( $2 ); }
	1827	\| typegen_declaration_specifier storage_class type_qualifier_list
	1828	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1829	;
[b87a5ed]	1830
	1831	typegen_type_specifier: // CFA
[2871210]	1832	typegen_name
	1833	\| type_qualifier_list typegen_name
	1834	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	1835	\| typegen_type_specifier type_qualifier
	1836	{ $$ = $1->addQualifiers( $2 ); }
	1837	;
[b87a5ed]	1838
[2871210]	1839	typegen_name: // CFA
	1840	TYPEGENname '(' type_name_list ')'
	1841	{ $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
	1842	;
	1843
[b87a5ed]	1844	type_parameter_list: // CFA
[4d51835]	1845	type_parameter assignment_opt
	1846	\| type_parameter_list ',' type_parameter assignment_opt
	1847	{ $$ = $1->appendList( $3 ); }
	1848	;
[b87a5ed]	1849
	1850	type_parameter: // CFA
[2871210]	1851	type_class no_attr_identifier_or_type_name
	1852	{ typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); }
[4d51835]	1853	assertion_list_opt
	1854	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); }
	1855	\| type_specifier identifier_parameter_declarator
	1856	;
[b87a5ed]	1857
	1858	type_class: // CFA
[4040425]	1859	OTYPE
[5b639ee]	1860	{ $$ = DeclarationNode::Otype; }
[4d51835]	1861	\| DTYPE
	1862	{ $$ = DeclarationNode::Ftype; }
	1863	\| FTYPE
	1864	{ $$ = DeclarationNode::Dtype; }
	1865	;
[b87a5ed]	1866
	1867	assertion_list_opt: // CFA
[4d51835]	1868	// empty
	1869	{ $$ = 0; }
	1870	\| assertion_list_opt assertion
[4e06c1e]	1871	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1872	;
[b87a5ed]	1873
	1874	assertion: // CFA
[2871210]	1875	'\|' no_attr_identifier_or_type_name '(' type_name_list ')'
[4d51835]	1876	{
[4040425]	1877	typedefTable.openTrait( *$2 );
	1878	$$ = DeclarationNode::newTraitUse( $2, $4 );
[4d51835]	1879	}
[4040425]	1880	\| '\|' '{' push trait_declaration_list '}'
[4d51835]	1881	{ $$ = $4; }
[4040425]	1882	\| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list '}' '(' type_name_list ')'
[4d51835]	1883	{ $$ = 0; }
	1884	;
[b87a5ed]	1885
	1886	type_name_list: // CFA
[4d51835]	1887	type_name
[d1625f8]	1888	{ $$ = new ExpressionNode( build_typevalue( $1 ) ); }
[4d51835]	1889	\| assignment_expression
	1890	\| type_name_list ',' type_name
[1d4580a]	1891	{ $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( build_typevalue( $3 ) ) ) ); }
[4d51835]	1892	\| type_name_list ',' assignment_expression
[1d4580a]	1893	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	1894	;
[b87a5ed]	1895
	1896	type_declaring_list: // CFA
[4040425]	1897	OTYPE type_declarator
[4d51835]	1898	{ $$ = $2; }
[4040425]	1899	\| storage_class_list OTYPE type_declarator
[4d51835]	1900	{ $$ = $3->addQualifiers( $1 ); }
	1901	\| type_declaring_list ',' type_declarator
	1902	{ $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); }
	1903	;
[b87a5ed]	1904
	1905	type_declarator: // CFA
[4d51835]	1906	type_declarator_name assertion_list_opt
	1907	{ $$ = $1->addAssertions( $2 ); }
	1908	\| type_declarator_name assertion_list_opt '=' type_name
	1909	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	1910	;
[b87a5ed]	1911
	1912	type_declarator_name: // CFA
[2871210]	1913	no_attr_identifier_or_type_name
[4d51835]	1914	{
[de62360d]	1915	typedefTable.addToEnclosingScope( *$1, TypedefTable::TD );
[4d51835]	1916	$$ = DeclarationNode::newTypeDecl( $1, 0 );
	1917	}
[2871210]	1918	\| no_01_identifier_or_type_name '(' push type_parameter_list pop ')'
[4d51835]	1919	{
[de62360d]	1920	typedefTable.addToEnclosingScope( *$1, TypedefTable::TG );
[4d51835]	1921	$$ = DeclarationNode::newTypeDecl( $1, $4 );
	1922	}
	1923	;
[b87a5ed]	1924
[4040425]	1925	trait_specifier: // CFA
	1926	TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}'
[4d51835]	1927	{
[de62360d]	1928	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1929	$$ = DeclarationNode::newTrait( $2, $5, 0 );
[4d51835]	1930	}
[4040425]	1931	\| TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{'
[4d51835]	1932	{
[4040425]	1933	typedefTable.enterTrait( *$2 );
[4d51835]	1934	typedefTable.enterScope();
	1935	}
[4040425]	1936	trait_declaration_list '}'
[4d51835]	1937	{
[4040425]	1938	typedefTable.leaveTrait();
[de62360d]	1939	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1940	$$ = DeclarationNode::newTrait( $2, $5, $10 );
[4d51835]	1941	}
	1942	;
[b87a5ed]	1943
[4040425]	1944	trait_declaration_list: // CFA
	1945	trait_declaration
	1946	\| trait_declaration_list push trait_declaration
[4d51835]	1947	{ $$ = $1->appendList( $3 ); }
	1948	;
[b87a5ed]	1949
[4040425]	1950	trait_declaration: // CFA
	1951	new_trait_declaring_list pop ';'
	1952	\| trait_declaring_list pop ';'
[4d51835]	1953	;
[b87a5ed]	1954
[4040425]	1955	new_trait_declaring_list: // CFA
[4d51835]	1956	new_variable_specifier
	1957	{
	1958	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1959	$$ = $1;
	1960	}
	1961	\| new_function_specifier
	1962	{
	1963	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1964	$$ = $1;
	1965	}
[4040425]	1966	\| new_trait_declaring_list pop ',' push identifier_or_type_name
[4d51835]	1967	{
[de62360d]	1968	typedefTable.addToEnclosingScope2( *$5, TypedefTable::ID );
[4d51835]	1969	$$ = $1->appendList( $1->cloneType( $5 ) );
	1970	}
	1971	;
[b87a5ed]	1972
[4040425]	1973	trait_declaring_list: // CFA
[4d51835]	1974	type_specifier declarator
	1975	{
	1976	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1977	$$ = $2->addType( $1 );
	1978	}
[4040425]	1979	\| trait_declaring_list pop ',' push declarator
[4d51835]	1980	{
	1981	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1982	$$ = $1->appendList( $1->cloneBaseType( $5 ) );
	1983	}
	1984	;
[51b73452]	1985
[c11e31c]	1986	//*************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	1987
	1988	translation_unit:
[4d51835]	1989	// empty
	1990	{} // empty input file
	1991	\| external_definition_list
[926af74]	1992	{ parseTree = parseTree != nullptr ? parseTree->appendList( $1 ) : $1; }
[4d51835]	1993	;
[51b73452]	1994
	1995	external_definition_list:
[4d51835]	1996	external_definition
	1997	\| external_definition_list push external_definition
[926af74]	1998	{ $$ = $1 != nullptr ? $1->appendList( $3 ) : $3; }
[4d51835]	1999	;
[51b73452]	2000
	2001	external_definition_list_opt:
[4d51835]	2002	// empty
	2003	{ $$ = 0; }
	2004	\| external_definition_list
	2005	;
[51b73452]	2006
	2007	external_definition:
[4d51835]	2008	declaration
	2009	\| external_function_definition
	2010	\| asm_statement // GCC, global assembler statement
	2011	{}
	2012	\| EXTERN STRINGliteral
	2013	{
[3b8e52c]	2014	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[faddbd8]	2015	linkage = LinkageSpec::linkageCheck( $2 );
[4d51835]	2016	}
	2017	'{' external_definition_list_opt '}' // C++-style linkage specifier
	2018	{
	2019	linkage = linkageStack.top();
	2020	linkageStack.pop();
	2021	$$ = $5;
	2022	}
	2023	\| EXTENSION external_definition
[8e9cbb2]	2024	{ // mark all fields in list
[926af74]	2025	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	2026	iter->set_extension( true );
	2027	$$ = $2;
	2028	}
[4d51835]	2029	;
	2030
	2031	external_function_definition:
	2032	function_definition
[de62360d]	2033	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	2034	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	2035	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	2036	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	2037	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	2038	\| function_declarator compound_statement
	2039	{
	2040	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2041	typedefTable.leaveScope();
	2042	$$ = $1->addFunctionBody( $2 );
	2043	}
	2044	\| old_function_declarator push old_declaration_list_opt compound_statement
	2045	{
	2046	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2047	typedefTable.leaveScope();
	2048	$$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 );
	2049	}
	2050	;
[51b73452]	2051
	2052	function_definition:
[4d51835]	2053	new_function_declaration compound_statement // CFA
	2054	{
	2055	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2056	typedefTable.leaveScope();
	2057	$$ = $1->addFunctionBody( $2 );
	2058	}
	2059	\| declaration_specifier function_declarator compound_statement
	2060	{
	2061	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2062	typedefTable.leaveScope();
	2063	$$ = $2->addFunctionBody( $3 )->addType( $1 );
	2064	}
	2065	\| type_qualifier_list function_declarator compound_statement
	2066	{
	2067	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2068	typedefTable.leaveScope();
	2069	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2070	}
	2071	\| declaration_qualifier_list function_declarator compound_statement
	2072	{
	2073	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2074	typedefTable.leaveScope();
	2075	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2076	}
	2077	\| declaration_qualifier_list type_qualifier_list function_declarator compound_statement
	2078	{
	2079	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2080	typedefTable.leaveScope();
	2081	$$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 );
	2082	}
	2083
	2084	// Old-style K&R function definition, OBSOLESCENT (see 4)
	2085	\| declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement
	2086	{
	2087	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2088	typedefTable.leaveScope();
	2089	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 );
	2090	}
	2091	\| type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2092	{
	2093	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2094	typedefTable.leaveScope();
	2095	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2096	}
	2097
	2098	// Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4)
	2099	\| declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2100	{
	2101	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2102	typedefTable.leaveScope();
	2103	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2104	}
	2105	\| declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2106	{
	2107	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2108	typedefTable.leaveScope();
	2109	$$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 );
	2110	}
	2111	;
[51b73452]	2112
	2113	declarator:
[4d51835]	2114	variable_declarator
[c6b1105]	2115	\| variable_type_redeclarator
[4d51835]	2116	\| function_declarator
	2117	;
[51b73452]	2118
	2119	subrange:
[4d51835]	2120	constant_expression '~' constant_expression // CFA, integer subrange
[d1625f8]	2121	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	2122	;
[b87a5ed]	2123
	2124	asm_name_opt: // GCC
[4d51835]	2125	// empty
[c1c1112]	2126	\| ASM '(' string_literal_list ')' attribute_list_opt { delete $3; } // FIX ME: unimplemented
[4d51835]	2127	;
[b87a5ed]	2128
	2129	attribute_list_opt: // GCC
[4d51835]	2130	// empty
[1db21619]	2131	{ $$ = 0; }
[4d51835]	2132	\| attribute_list
	2133	;
[b87a5ed]	2134
	2135	attribute_list: // GCC
[4d51835]	2136	attribute
	2137	\| attribute_list attribute
[1db21619]	2138	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	2139	;
[b87a5ed]	2140
	2141	attribute: // GCC
[4d51835]	2142	ATTRIBUTE '(' '(' attribute_parameter_list ')' ')'
[1db21619]	2143	// { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
	2144	{ $$ = 0; }
[4d51835]	2145	;
[b87a5ed]	2146
	2147	attribute_parameter_list: // GCC
[4d51835]	2148	attrib
	2149	\| attribute_parameter_list ',' attrib
	2150	;
[b87a5ed]	2151
	2152	attrib: // GCC
[4d51835]	2153	// empty
	2154	\| any_word
[c1c1112]	2155	\| any_word '(' comma_expression_opt ')' { delete $3; } // FIX ME: unimplemented
[4d51835]	2156	;
[b87a5ed]	2157
	2158	any_word: // GCC
[c1c1112]	2159	identifier_or_type_name { delete $1; } // FIX ME: unimplemented
	2160	\| storage_class { delete $1; } // FIX ME: unimplemented
	2161	\| basic_type_name { delete $1; } // FIX ME: unimplemented
	2162	\| type_qualifier { delete $1; } // FIX ME: unimplemented
[4d51835]	2163	;
[51b73452]	2164
[c11e31c]	2165	// ============================================================================
[de62360d]	2166	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	2167	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	2168	// in:
[c11e31c]	2169	//
[b87a5ed]	2170	// int (*f())[10] { ... };
	2171	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	2172	//
[de62360d]	2173	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	2174	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	2175	// ============================================================================
	2176
	2177	// ----------------------------------------------------------------------------
[de62360d]	2178	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	2179	// to define a variable or function prototype, e.g.:
[c11e31c]	2180	//
[b87a5ed]	2181	// valid declaration invalid definition
	2182	// ----------------- ------------------
[4d51835]	2183	// int f; int f {}
	2184	// int f; int f {}
[b87a5ed]	2185	// int f[10]; int f[10] {}
[4d51835]	2186	// int (f)(int); int (f)(int) {}
[c11e31c]	2187	//
[de62360d]	2188	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	2189	// variable_declarator and function_declarator.
[c11e31c]	2190	// ----------------------------------------------------------------------------
	2191
[de62360d]	2192	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	2193	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	2194
	2195	variable_declarator:
[4d51835]	2196	paren_identifier attribute_list_opt
[1db21619]	2197	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2198	\| variable_ptr
	2199	\| variable_array attribute_list_opt
[1db21619]	2200	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2201	\| variable_function attribute_list_opt
[1db21619]	2202	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2203	;
[51b73452]	2204
	2205	paren_identifier:
[4d51835]	2206	identifier
	2207	{
[de62360d]	2208	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2209	$$ = DeclarationNode::newName( $1 );
	2210	}
	2211	\| '(' paren_identifier ')' // redundant parenthesis
	2212	{ $$ = $2; }
	2213	;
[51b73452]	2214
	2215	variable_ptr:
[dd51906]	2216	ptrref_operator variable_declarator
[4d51835]	2217	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2218	\| ptrref_operator type_qualifier_list variable_declarator
[4d51835]	2219	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2220	\| '(' variable_ptr ')'
	2221	{ $$ = $2; }
	2222	;
[51b73452]	2223
	2224	variable_array:
[4d51835]	2225	paren_identifier array_dimension
	2226	{ $$ = $1->addArray( $2 ); }
	2227	\| '(' variable_ptr ')' array_dimension
	2228	{ $$ = $2->addArray( $4 ); }
	2229	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
	2230	{ $$ = $2->addArray( $4 ); }
	2231	\| '(' variable_array ')' // redundant parenthesis
	2232	{ $$ = $2; }
	2233	;
[51b73452]	2234
	2235	variable_function:
[4d51835]	2236	'(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2237	{ $$ = $2->addParamList( $6 ); }
	2238	\| '(' variable_function ')' // redundant parenthesis
	2239	{ $$ = $2; }
	2240	;
[51b73452]	2241
[c6b1105]	2242	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	2243	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	2244	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	2245
	2246	function_declarator:
[4d51835]	2247	function_no_ptr attribute_list_opt
[1db21619]	2248	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2249	\| function_ptr
	2250	\| function_array attribute_list_opt
[1db21619]	2251	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2252	;
[51b73452]	2253
	2254	function_no_ptr:
[4d51835]	2255	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2256	{ $$ = $1->addParamList( $4 ); }
	2257	\| '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2258	{ $$ = $2->addParamList( $6 ); }
	2259	\| '(' function_no_ptr ')' // redundant parenthesis
	2260	{ $$ = $2; }
	2261	;
[51b73452]	2262
	2263	function_ptr:
[dd51906]	2264	ptrref_operator function_declarator
[4d51835]	2265	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2266	\| ptrref_operator type_qualifier_list function_declarator
[4d51835]	2267	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2268	\| '(' function_ptr ')'
	2269	{ $$ = $2; }
	2270	;
[51b73452]	2271
	2272	function_array:
[4d51835]	2273	'(' function_ptr ')' array_dimension
	2274	{ $$ = $2->addArray( $4 ); }
	2275	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	2276	{ $$ = $2->addArray( $4 ); }
	2277	\| '(' function_array ')' // redundant parenthesis
	2278	{ $$ = $2; }
	2279	;
[51b73452]	2280
[de62360d]	2281	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a typedef name
	2282	// (see function_declarator for additional comments). The pattern precludes returning arrays and functions versus
	2283	// pointers to arrays and functions.
[51b73452]	2284
	2285	old_function_declarator:
[4d51835]	2286	old_function_no_ptr
	2287	\| old_function_ptr
	2288	\| old_function_array
	2289	;
[51b73452]	2290
	2291	old_function_no_ptr:
[4d51835]	2292	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	2293	{ $$ = $1->addIdList( $3 ); }
	2294	\| '(' old_function_ptr ')' '(' identifier_list ')'
	2295	{ $$ = $2->addIdList( $5 ); }
	2296	\| '(' old_function_no_ptr ')' // redundant parenthesis
	2297	{ $$ = $2; }
	2298	;
[51b73452]	2299
	2300	old_function_ptr:
[dd51906]	2301	ptrref_operator old_function_declarator
[4d51835]	2302	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2303	\| ptrref_operator type_qualifier_list old_function_declarator
[4d51835]	2304	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2305	\| '(' old_function_ptr ')'
	2306	{ $$ = $2; }
	2307	;
[51b73452]	2308
	2309	old_function_array:
[4d51835]	2310	'(' old_function_ptr ')' array_dimension
	2311	{ $$ = $2->addArray( $4 ); }
	2312	\| '(' old_function_array ')' multi_array_dimension // redundant parenthesis
	2313	{ $$ = $2->addArray( $4 ); }
	2314	\| '(' old_function_array ')' // redundant parenthesis
	2315	{ $$ = $2; }
	2316	;
[51b73452]	2317
[2871210]	2318	// This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
[c11e31c]	2319	//
[b87a5ed]	2320	// typedef int foo;
	2321	// {
	2322	// int foo; // redefine typedef name in new scope
	2323	// }
[c11e31c]	2324	//
[de62360d]	2325	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2326	// and functions versus pointers to arrays and functions.
[51b73452]	2327
[c6b1105]	2328	variable_type_redeclarator:
[2871210]	2329	paren_type attribute_list_opt
[1db21619]	2330	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2331	\| type_ptr
	2332	\| type_array attribute_list_opt
[1db21619]	2333	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2334	\| type_function attribute_list_opt
[1db21619]	2335	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2336	;
[51b73452]	2337
[2871210]	2338	paren_type:
	2339	typedef
	2340	\| '(' paren_type ')'
[4d51835]	2341	{ $$ = $2; }
	2342	;
[51b73452]	2343
[2871210]	2344	type_ptr:
[c6b1105]	2345	ptrref_operator variable_type_redeclarator
[4d51835]	2346	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[c6b1105]	2347	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[4d51835]	2348	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2349	\| '(' type_ptr ')'
[4d51835]	2350	{ $$ = $2; }
	2351	;
[51b73452]	2352
[2871210]	2353	type_array:
	2354	paren_type array_dimension
[4d51835]	2355	{ $$ = $1->addArray( $2 ); }
[2871210]	2356	\| '(' type_ptr ')' array_dimension
[4d51835]	2357	{ $$ = $2->addArray( $4 ); }
[2871210]	2358	\| '(' type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2359	{ $$ = $2->addArray( $4 ); }
[2871210]	2360	\| '(' type_array ')' // redundant parenthesis
[4d51835]	2361	{ $$ = $2; }
	2362	;
[51b73452]	2363
[2871210]	2364	type_function:
	2365	paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2366	{ $$ = $1->addParamList( $4 ); }
[2871210]	2367	\| '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2368	{ $$ = $2->addParamList( $6 ); }
[2871210]	2369	\| '(' type_function ')' // redundant parenthesis
[4d51835]	2370	{ $$ = $2; }
	2371	;
[51b73452]	2372
[de62360d]	2373	// This pattern parses a declaration for a parameter variable or function prototype that is not redefining a typedef
	2374	// name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes declaring an
	2375	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	2376	// arrays and functions.
[51b73452]	2377
	2378	identifier_parameter_declarator:
[4d51835]	2379	paren_identifier attribute_list_opt
[1db21619]	2380	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2381	\| identifier_parameter_ptr
	2382	\| identifier_parameter_array attribute_list_opt
[1db21619]	2383	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2384	\| identifier_parameter_function attribute_list_opt
[1db21619]	2385	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2386	;
[51b73452]	2387
	2388	identifier_parameter_ptr:
[dd51906]	2389	ptrref_operator identifier_parameter_declarator
[4d51835]	2390	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2391	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[4d51835]	2392	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2393	\| '(' identifier_parameter_ptr ')'
	2394	{ $$ = $2; }
	2395	;
[51b73452]	2396
	2397	identifier_parameter_array:
[4d51835]	2398	paren_identifier array_parameter_dimension
	2399	{ $$ = $1->addArray( $2 ); }
	2400	\| '(' identifier_parameter_ptr ')' array_dimension
	2401	{ $$ = $2->addArray( $4 ); }
	2402	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	2403	{ $$ = $2->addArray( $4 ); }
	2404	\| '(' identifier_parameter_array ')' // redundant parenthesis
	2405	{ $$ = $2; }
	2406	;
[51b73452]	2407
	2408	identifier_parameter_function:
[4d51835]	2409	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2410	{ $$ = $1->addParamList( $4 ); }
	2411	\| '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2412	{ $$ = $2->addParamList( $6 ); }
	2413	\| '(' identifier_parameter_function ')' // redundant parenthesis
	2414	{ $$ = $2; }
	2415	;
[b87a5ed]	2416
[de62360d]	2417	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	2418	// e.g.:
[c11e31c]	2419	//
[b87a5ed]	2420	// typedef int foo;
	2421	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	2422	//
[de62360d]	2423	// and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern handles the
	2424	// special meaning of parenthesis around a typedef name:
[c11e31c]	2425	//
[b87a5ed]	2426	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	2427	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	2428	// not as redundant parentheses around the identifier."
[c11e31c]	2429	//
[c6b1105]	2430	// For example:
[c11e31c]	2431	//
[b87a5ed]	2432	// typedef float T;
[4d51835]	2433	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
[b87a5ed]	2434	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	2435	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	2436	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
[c11e31c]	2437	//
[de62360d]	2438	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	2439	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	2440	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	2441	// functions.
[51b73452]	2442
[2871210]	2443	type_parameter_redeclarator:
[4d51835]	2444	typedef attribute_list_opt
[1db21619]	2445	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2446	\| type_parameter_ptr
	2447	\| type_parameter_array attribute_list_opt
[1db21619]	2448	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2449	\| type_parameter_function attribute_list_opt
[1db21619]	2450	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2451	;
[51b73452]	2452
	2453	typedef:
[4d51835]	2454	TYPEDEFname
	2455	{
[de62360d]	2456	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2457	$$ = DeclarationNode::newName( $1 );
	2458	}
[2871210]	2459	\| TYPEGENname
	2460	{
	2461	typedefTable.setNextIdentifier( *$1 );
	2462	$$ = DeclarationNode::newName( $1 );
	2463	}
[4d51835]	2464	;
[51b73452]	2465
[2871210]	2466	type_parameter_ptr:
[dd51906]	2467	ptrref_operator type_parameter_redeclarator
[4d51835]	2468	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2469	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[4d51835]	2470	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2471	\| '(' type_parameter_ptr ')'
[4d51835]	2472	{ $$ = $2; }
	2473	;
[51b73452]	2474
[2871210]	2475	type_parameter_array:
[4d51835]	2476	typedef array_parameter_dimension
	2477	{ $$ = $1->addArray( $2 ); }
[2871210]	2478	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	2479	{ $$ = $2->addArray( $4 ); }
	2480	;
[51b73452]	2481
[2871210]	2482	type_parameter_function:
[4d51835]	2483	typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2484	{ $$ = $1->addParamList( $4 ); }
[2871210]	2485	\| '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2486	{ $$ = $2->addParamList( $6 ); }
	2487	;
[b87a5ed]	2488
[de62360d]	2489	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	2490	// which the type applies, e.g.:
[c11e31c]	2491	//
[b87a5ed]	2492	// sizeof( int );
	2493	// sizeof( int [10] );
[c11e31c]	2494	//
[de62360d]	2495	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2496	// and functions versus pointers to arrays and functions.
[51b73452]	2497
	2498	abstract_declarator:
[4d51835]	2499	abstract_ptr
	2500	\| abstract_array attribute_list_opt
[1db21619]	2501	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2502	\| abstract_function attribute_list_opt
[1db21619]	2503	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2504	;
[51b73452]	2505
	2506	abstract_ptr:
[dd51906]	2507	ptrref_operator
[4d51835]	2508	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2509	\| ptrref_operator type_qualifier_list
[4d51835]	2510	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2511	\| ptrref_operator abstract_declarator
[4d51835]	2512	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2513	\| ptrref_operator type_qualifier_list abstract_declarator
[4d51835]	2514	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2515	\| '(' abstract_ptr ')'
	2516	{ $$ = $2; }
	2517	;
[51b73452]	2518
	2519	abstract_array:
[4d51835]	2520	array_dimension
	2521	\| '(' abstract_ptr ')' array_dimension
	2522	{ $$ = $2->addArray( $4 ); }
	2523	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	2524	{ $$ = $2->addArray( $4 ); }
	2525	\| '(' abstract_array ')' // redundant parenthesis
	2526	{ $$ = $2; }
	2527	;
[51b73452]	2528
	2529	abstract_function:
[4d51835]	2530	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[2298f728]	2531	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
[4d51835]	2532	\| '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2533	{ $$ = $2->addParamList( $6 ); }
	2534	\| '(' abstract_function ')' // redundant parenthesis
	2535	{ $$ = $2; }
	2536	;
[51b73452]	2537
	2538	array_dimension:
[4d51835]	2539	// Only the first dimension can be empty.
[2871210]	2540	'[' ']'
[4d51835]	2541	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[2871210]	2542	\| '[' ']' multi_array_dimension
	2543	{ $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
[4d51835]	2544	\| multi_array_dimension
	2545	;
[51b73452]	2546
	2547	multi_array_dimension:
[4d51835]	2548	'[' push assignment_expression pop ']'
	2549	{ $$ = DeclarationNode::newArray( $3, 0, false ); }
	2550	\| '[' push '*' pop ']' // C99
	2551	{ $$ = DeclarationNode::newVarArray( 0 ); }
	2552	\| multi_array_dimension '[' push assignment_expression pop ']'
	2553	{ $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
	2554	\| multi_array_dimension '[' push '*' pop ']' // C99
	2555	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	2556	;
[51b73452]	2557
[c11e31c]	2558	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	2559	// identifier to which the type applies, e.g.:
	2560	//
[b87a5ed]	2561	// int f( int ); // abstract variable parameter; no parameter name specified
	2562	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2563	//
[de62360d]	2564	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2565	// and functions versus pointers to arrays and functions.
[51b73452]	2566
	2567	abstract_parameter_declarator:
[4d51835]	2568	abstract_parameter_ptr
	2569	\| abstract_parameter_array attribute_list_opt
[1db21619]	2570	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2571	\| abstract_parameter_function attribute_list_opt
[1db21619]	2572	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2573	;
[51b73452]	2574
	2575	abstract_parameter_ptr:
[dd51906]	2576	ptrref_operator
[4d51835]	2577	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2578	\| ptrref_operator type_qualifier_list
[4d51835]	2579	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2580	\| ptrref_operator abstract_parameter_declarator
[4d51835]	2581	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2582	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[4d51835]	2583	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2584	\| '(' abstract_parameter_ptr ')'
	2585	{ $$ = $2; }
	2586	;
[51b73452]	2587
	2588	abstract_parameter_array:
[4d51835]	2589	array_parameter_dimension
	2590	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	2591	{ $$ = $2->addArray( $4 ); }
	2592	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	2593	{ $$ = $2->addArray( $4 ); }
	2594	\| '(' abstract_parameter_array ')' // redundant parenthesis
	2595	{ $$ = $2; }
	2596	;
[51b73452]	2597
	2598	abstract_parameter_function:
[4d51835]	2599	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[2298f728]	2600	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
[4d51835]	2601	\| '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2602	{ $$ = $2->addParamList( $6 ); }
	2603	\| '(' abstract_parameter_function ')' // redundant parenthesis
	2604	{ $$ = $2; }
	2605	;
[51b73452]	2606
	2607	array_parameter_dimension:
[4d51835]	2608	// Only the first dimension can be empty or have qualifiers.
	2609	array_parameter_1st_dimension
	2610	\| array_parameter_1st_dimension multi_array_dimension
	2611	{ $$ = $1->addArray( $2 ); }
	2612	\| multi_array_dimension
	2613	;
[51b73452]	2614
[c11e31c]	2615	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	2616	//
[de62360d]	2617	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	2618	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	2619
	2620	array_parameter_1st_dimension:
[2871210]	2621	'[' ']'
[4d51835]	2622	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
	2623	// multi_array_dimension handles the '[' '*' ']' case
	2624	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	2625	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2626	\| '[' push type_qualifier_list pop ']'
	2627	{ $$ = DeclarationNode::newArray( 0, $3, false ); }
	2628	// multi_array_dimension handles the '[' assignment_expression ']' case
	2629	\| '[' push type_qualifier_list assignment_expression pop ']'
	2630	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2631	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	2632	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	2633	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	2634	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
	2635	;
[b87a5ed]	2636
[de62360d]	2637	// This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type applies,
	2638	// e.g.:
[c11e31c]	2639	//
[b87a5ed]	2640	// sizeof( int ); // abstract variable; no identifier name specified
[c11e31c]	2641	//
[de62360d]	2642	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2643	// and functions versus pointers to arrays and functions.
[51b73452]	2644
	2645	variable_abstract_declarator:
[4d51835]	2646	variable_abstract_ptr
	2647	\| variable_abstract_array attribute_list_opt
[1db21619]	2648	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2649	\| variable_abstract_function attribute_list_opt
[1db21619]	2650	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2651	;
[51b73452]	2652
	2653	variable_abstract_ptr:
[dd51906]	2654	ptrref_operator
[4d51835]	2655	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2656	\| ptrref_operator type_qualifier_list
[4d51835]	2657	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2658	\| ptrref_operator variable_abstract_declarator
[4d51835]	2659	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2660	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[4d51835]	2661	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2662	\| '(' variable_abstract_ptr ')'
	2663	{ $$ = $2; }
	2664	;
[51b73452]	2665
	2666	variable_abstract_array:
[4d51835]	2667	array_dimension
	2668	\| '(' variable_abstract_ptr ')' array_dimension
	2669	{ $$ = $2->addArray( $4 ); }
	2670	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	2671	{ $$ = $2->addArray( $4 ); }
	2672	\| '(' variable_abstract_array ')' // redundant parenthesis
	2673	{ $$ = $2; }
	2674	;
[51b73452]	2675
	2676	variable_abstract_function:
[4d51835]	2677	'(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2678	{ $$ = $2->addParamList( $6 ); }
	2679	\| '(' variable_abstract_function ')' // redundant parenthesis
	2680	{ $$ = $2; }
	2681	;
[b87a5ed]	2682
[de62360d]	2683	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	2684	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	2685
	2686	new_identifier_parameter_declarator_tuple: // CFA
[4d51835]	2687	new_identifier_parameter_declarator_no_tuple
	2688	\| new_abstract_tuple
	2689	\| type_qualifier_list new_abstract_tuple
	2690	{ $$ = $2->addQualifiers( $1 ); }
	2691	;
[b87a5ed]	2692
	2693	new_identifier_parameter_declarator_no_tuple: // CFA
[4d51835]	2694	new_identifier_parameter_ptr
	2695	\| new_identifier_parameter_array
	2696	;
[b87a5ed]	2697
	2698	new_identifier_parameter_ptr: // CFA
[dd51906]	2699	ptrref_operator type_specifier
[4d51835]	2700	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2701	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2702	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2703	\| ptrref_operator new_abstract_function
[4d51835]	2704	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2705	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2706	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2707	\| ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2708	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2709	\| type_qualifier_list ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2710	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2711	;
[b87a5ed]	2712
	2713	new_identifier_parameter_array: // CFA
[de62360d]	2714	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	2715	// shift/reduce conflict with new-style empty (void) function return type.
[2871210]	2716	'[' ']' type_specifier
	2717	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2718	\| new_array_parameter_1st_dimension type_specifier
	2719	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2720	\| '[' ']' multi_array_dimension type_specifier
	2721	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2722	\| new_array_parameter_1st_dimension multi_array_dimension type_specifier
	2723	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2724	\| multi_array_dimension type_specifier
	2725	{ $$ = $2->addNewArray( $1 ); }
[9059213]	2726
[2871210]	2727	\| '[' ']' new_identifier_parameter_ptr
	2728	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2729	\| new_array_parameter_1st_dimension new_identifier_parameter_ptr
	2730	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2731	\| '[' ']' multi_array_dimension new_identifier_parameter_ptr
	2732	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2733	\| new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr
	2734	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2735	\| multi_array_dimension new_identifier_parameter_ptr
	2736	{ $$ = $2->addNewArray( $1 ); }
	2737	;
[51b73452]	2738
	2739	new_array_parameter_1st_dimension:
[4d51835]	2740	'[' push type_qualifier_list '*' pop ']' // remaining C99
	2741	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2742	\| '[' push type_qualifier_list assignment_expression pop ']'
	2743	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2744	\| '[' push declaration_qualifier_list assignment_expression pop ']'
	2745	// declaration_qualifier_list must be used because of shift/reduce conflict with
	2746	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	2747	// appear in this context.
	2748	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	2749	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	2750	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
	2751	;
[b87a5ed]	2752
[de62360d]	2753	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	2754	// identifier to which the type applies, e.g.:
[c11e31c]	2755	//
[b87a5ed]	2756	// [int] f( int ); // abstract variable parameter; no parameter name specified
	2757	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2758	//
	2759	// These rules need LR(3):
	2760	//
[2871210]	2761	// new_abstract_tuple identifier_or_type_name
	2762	// '[' new_parameter_list ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[c11e31c]	2763	//
	2764	// since a function return type can be syntactically identical to a tuple type:
	2765	//
[b87a5ed]	2766	// [int, int] t;
	2767	// [int, int] f( int );
[c11e31c]	2768	//
[2871210]	2769	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[de62360d]	2770	// new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	2771	// lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and tuple declarations are
	2772	// duplicated when appearing with new_function_specifier.
[b87a5ed]	2773
	2774	new_abstract_declarator_tuple: // CFA
[4d51835]	2775	new_abstract_tuple
	2776	\| type_qualifier_list new_abstract_tuple
	2777	{ $$ = $2->addQualifiers( $1 ); }
	2778	\| new_abstract_declarator_no_tuple
	2779	;
[b87a5ed]	2780
	2781	new_abstract_declarator_no_tuple: // CFA
[4d51835]	2782	new_abstract_ptr
	2783	\| new_abstract_array
	2784	;
[b87a5ed]	2785
	2786	new_abstract_ptr: // CFA
[dd51906]	2787	ptrref_operator type_specifier
[4d51835]	2788	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2789	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2790	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2791	\| ptrref_operator new_abstract_function
[4d51835]	2792	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2793	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2794	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2795	\| ptrref_operator new_abstract_declarator_tuple
[4d51835]	2796	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2797	\| type_qualifier_list ptrref_operator new_abstract_declarator_tuple
[4d51835]	2798	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2799	;
[b87a5ed]	2800
	2801	new_abstract_array: // CFA
[de62360d]	2802	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	2803	// empty (void) function return type.
[2871210]	2804	'[' ']' type_specifier
[2298f728]	2805	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	2806	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	2807	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	2808	\| multi_array_dimension type_specifier
	2809	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2810	\| '[' ']' new_abstract_ptr
[2298f728]	2811	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	2812	\| '[' ']' multi_array_dimension new_abstract_ptr
[2298f728]	2813	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	2814	\| multi_array_dimension new_abstract_ptr
	2815	{ $$ = $2->addNewArray( $1 ); }
	2816	;
[b87a5ed]	2817
	2818	new_abstract_tuple: // CFA
[4d51835]	2819	'[' push new_abstract_parameter_list pop ']'
	2820	{ $$ = DeclarationNode::newTuple( $3 ); }
	2821	;
[b87a5ed]	2822
	2823	new_abstract_function: // CFA
[2871210]	2824	'[' ']' '(' new_parameter_type_list_opt ')'
[2298f728]	2825	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
[4d51835]	2826	\| new_abstract_tuple '(' push new_parameter_type_list_opt pop ')'
[2298f728]	2827	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	2828	\| new_function_return '(' push new_parameter_type_list_opt pop ')'
[2298f728]	2829	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	2830	;
[b87a5ed]	2831
[de62360d]	2832	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	2833	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	2834	//
[de62360d]	2835	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	2836	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	2837	//
	2838	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	2839	// prototype-format parameter type declarators) is an obsolescent feature."
	2840	//
[de62360d]	2841	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	2842	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	2843
[c11e31c]	2844	//*********************** MISCELLANEOUS ******************************
[51b73452]	2845
[b87a5ed]	2846	comma_opt: // redundant comma
[4d51835]	2847	// empty
	2848	\| ','
	2849	;
[51b73452]	2850
	2851	assignment_opt:
[4d51835]	2852	// empty
	2853	{ $$ = 0; }
	2854	\| '=' assignment_expression
	2855	{ $$ = $2; }
	2856	;
[51b73452]	2857
	2858	%%
[c11e31c]	2859	// ----end of grammar----
[51b73452]	2860
[0da3e2c]	2861	extern char *yytext;
	2862
[5f2f2d7]	2863	void yyerror( const char * ) {
[2298f728]	2864	cout << "Error ";
[b87a5ed]	2865	if ( yyfilename ) {
[2298f728]	2866	cout << "in file " << yyfilename << " ";
[5f2f2d7]	2867	} // if
[2298f728]	2868	cout << "at line " << yylineno << " reading token \"" << (yytext[0] == '\0' ? "EOF" : yytext) << "\"" << endl;
[51b73452]	2869	}
	2870
[c11e31c]	2871	// Local Variables: //
[b87a5ed]	2872	// mode: c++ //
[de62360d]	2873	// tab-width: 4 //
[c11e31c]	2874	// compile-command: "make install" //
	2875	// End: //

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