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Last change on this file since 2b93c5a was faddbd8, checked in by Peter A. Buhr <pabuhr@…>, 9 years ago
more refactoring of parser code, new tuple syntax
Property mode set to `100644`
File size: 103.6 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
[faddbd8]	12	// Last Modified On : Wed Oct 5 14:10:46 2016
	13	// Update Count : 2002
[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
	280	// introduced through "forall" qualifiers), and by introducing "type generators" -- parametrized types. This latter
	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
	284	// accesses a data structure (the TypedefTable) to allow classification of an identifier that it has just read.
	285	// Semantic 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
	291	// "typedef" or "type" 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
	433	\| INTEGERconstant
	434	;
	435
[51b73452]	436	unary_expression:
[4d51835]	437	postfix_expression
[c6b1105]	438	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	439	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	440	\| constant
	441	{ $$ = $1; }
[ab57786]	442	\| string_literal
[d1625f8]	443	{ $$ = new ExpressionNode( $1 ); }
[4d51835]	444	\| EXTENSION cast_expression // GCC
[e04ef3a]	445	{ $$ = $2->set_extension( true ); }
[c6b1105]	446	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	447	// { * X; } // dereference X
	448	// { * int X; } // CFA declaration of pointer to int
[51e076e]	449	\| ptrref_operator cast_expression // CFA
[9706554]	450	{
	451	switch ( $1 ) {
[d9e2280]	452	case OperKinds::AddressOf:
[d1625f8]	453	$$ = new ExpressionNode( build_addressOf( $2 ) );
[9706554]	454	break;
[d9e2280]	455	case OperKinds::PointTo:
[d1625f8]	456	$$ = new ExpressionNode( build_unary_val( $1, $2 ) );
[9706554]	457	break;
	458	default:
	459	assert( false );
	460	}
	461	}
[4d51835]	462	\| unary_operator cast_expression
[d1625f8]	463	{ $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); }
[dd51906]	464	\| ICR unary_expression
[d1625f8]	465	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); }
[dd51906]	466	\| DECR unary_expression
[d1625f8]	467	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); }
[4d51835]	468	\| SIZEOF unary_expression
[d1625f8]	469	{ $$ = new ExpressionNode( build_sizeOfexpr( $2 ) ); }
[4d51835]	470	\| SIZEOF '(' type_name_no_function ')'
[d1625f8]	471	{ $$ = new ExpressionNode( build_sizeOftype( $3 ) ); }
	472	\| ALIGNOF unary_expression // GCC, variable alignment
	473	{ $$ = new ExpressionNode( build_alignOfexpr( $2 ) ); }
	474	\| ALIGNOF '(' type_name_no_function ')' // GCC, type alignment
	475	{ $$ = new ExpressionNode( build_alignOftype( $3 ) ); }
[5721a6d]	476	\| OFFSETOF '(' type_name_no_function ',' no_attr_identifier ')'
[d1625f8]	477	{ $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); }
[4d51835]	478	\| ATTR_IDENTIFIER
[d1625f8]	479	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), nullptr ) ); }
[4d51835]	480	\| ATTR_IDENTIFIER '(' argument_expression ')'
[d1625f8]	481	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), $3 ) ); }
	482	\| ATTR_IDENTIFIER '(' type_name ')'
	483	{ $$ = new ExpressionNode( build_attrtype( build_varref( $1 ), $3 ) ); }
[c6b1105]	484	// \| ANDAND IDENTIFIER // GCC, address of label
[d1625f8]	485	// { $$ = new ExpressionNode( new OperatorNode( OperKinds::LabelAddress ), new ExpressionNode( build_varref( $2, true ) ); }
[4d51835]	486	;
[51b73452]	487
[dd51906]	488	ptrref_operator:
[d9e2280]	489	'*' { $$ = OperKinds::PointTo; }
	490	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	491	// GCC, address of label must be handled by semantic check for ref,ref,label
[d9e2280]	492	// \| ANDAND { $$ = OperKinds::And; }
[dd51906]	493	;
	494
[51b73452]	495	unary_operator:
[d9e2280]	496	'+' { $$ = OperKinds::UnPlus; }
	497	\| '-' { $$ = OperKinds::UnMinus; }
	498	\| '!' { $$ = OperKinds::Neg; }
	499	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	500	;
[51b73452]	501
	502	cast_expression:
[4d51835]	503	unary_expression
	504	\| '(' type_name_no_function ')' cast_expression
[d1625f8]	505	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	506	\| '(' type_name_no_function ')' tuple
[d1625f8]	507	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	508	;
[51b73452]	509
	510	multiplicative_expression:
[4d51835]	511	cast_expression
	512	\| multiplicative_expression '*' cast_expression
[d1625f8]	513	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); }
[4d51835]	514	\| multiplicative_expression '/' cast_expression
[d1625f8]	515	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); }
[4d51835]	516	\| multiplicative_expression '%' cast_expression
[d1625f8]	517	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); }
[4d51835]	518	;
[51b73452]	519
	520	additive_expression:
[4d51835]	521	multiplicative_expression
	522	\| additive_expression '+' multiplicative_expression
[d1625f8]	523	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); }
[4d51835]	524	\| additive_expression '-' multiplicative_expression
[d1625f8]	525	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); }
[4d51835]	526	;
[51b73452]	527
	528	shift_expression:
[4d51835]	529	additive_expression
	530	\| shift_expression LS additive_expression
[d1625f8]	531	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); }
[4d51835]	532	\| shift_expression RS additive_expression
[d1625f8]	533	{ $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); }
[4d51835]	534	;
[51b73452]	535
	536	relational_expression:
[4d51835]	537	shift_expression
	538	\| relational_expression '<' shift_expression
[d1625f8]	539	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); }
[4d51835]	540	\| relational_expression '>' shift_expression
[d1625f8]	541	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); }
[4d51835]	542	\| relational_expression LE shift_expression
[d1625f8]	543	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	544	\| relational_expression GE shift_expression
[d1625f8]	545	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	546	;
[51b73452]	547
	548	equality_expression:
[4d51835]	549	relational_expression
	550	\| equality_expression EQ relational_expression
[d1625f8]	551	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); }
[4d51835]	552	\| equality_expression NE relational_expression
[d1625f8]	553	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); }
[4d51835]	554	;
[51b73452]	555
	556	AND_expression:
[4d51835]	557	equality_expression
	558	\| AND_expression '&' equality_expression
[d1625f8]	559	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	560	;
[51b73452]	561
	562	exclusive_OR_expression:
[4d51835]	563	AND_expression
	564	\| exclusive_OR_expression '^' AND_expression
[d1625f8]	565	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); }
[4d51835]	566	;
[51b73452]	567
	568	inclusive_OR_expression:
[4d51835]	569	exclusive_OR_expression
	570	\| inclusive_OR_expression '\|' exclusive_OR_expression
[d1625f8]	571	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	572	;
[51b73452]	573
	574	logical_AND_expression:
[4d51835]	575	inclusive_OR_expression
	576	\| logical_AND_expression ANDAND inclusive_OR_expression
[d1625f8]	577	{ $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); }
[4d51835]	578	;
[51b73452]	579
	580	logical_OR_expression:
[4d51835]	581	logical_AND_expression
	582	\| logical_OR_expression OROR logical_AND_expression
[d1625f8]	583	{ $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); }
[4d51835]	584	;
[51b73452]	585
	586	conditional_expression:
[4d51835]	587	logical_OR_expression
	588	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[d1625f8]	589	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[d9e2280]	590	// FIX ME: this hack computes $1 twice
[4d51835]	591	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[d1625f8]	592	{ $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); }
[4d51835]	593	\| logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression
[d1625f8]	594	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[4d51835]	595	;
[51b73452]	596
	597	constant_expression:
[4d51835]	598	conditional_expression
	599	;
[51b73452]	600
	601	assignment_expression:
[4d51835]	602	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	603	conditional_expression
	604	\| unary_expression assignment_operator assignment_expression
[d1625f8]	605	{ $$ = new ExpressionNode( build_binary_ptr( $2, $1, $3 ) ); }
[4d51835]	606	\| tuple assignment_opt // CFA, tuple expression
[d1625f8]	607	{ $$ = ( $2 == 0 ) ? $1 : new ExpressionNode( build_binary_ptr( OperKinds::Assign, $1, $2 ) ); }
[4d51835]	608	;
[51b73452]	609
	610	assignment_expression_opt:
[4d51835]	611	// empty
[d1625f8]	612	{ $$ = nullptr; }
[4d51835]	613	\| assignment_expression
	614	;
[b87a5ed]	615
[9706554]	616	assignment_operator:
[d9e2280]	617	'=' { $$ = OperKinds::Assign; }
[a839867]	618	\| ATassign { $$ = OperKinds::AtAssn; }
[d9e2280]	619	\| MULTassign { $$ = OperKinds::MulAssn; }
	620	\| DIVassign { $$ = OperKinds::DivAssn; }
	621	\| MODassign { $$ = OperKinds::ModAssn; }
	622	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	623	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	624	\| LSassign { $$ = OperKinds::LSAssn; }
	625	\| RSassign { $$ = OperKinds::RSAssn; }
	626	\| ANDassign { $$ = OperKinds::AndAssn; }
	627	\| ERassign { $$ = OperKinds::ERAssn; }
	628	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	629	;
[9706554]	630
[b87a5ed]	631	tuple: // CFA, tuple
[de62360d]	632	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
	633	// comma_expression in new_identifier_parameter_array and new_abstract_array
[2871210]	634	'[' ']'
[d1625f8]	635	{ $$ = new ExpressionNode( build_tuple() ); }
[4d51835]	636	\| '[' push assignment_expression pop ']'
[d1625f8]	637	{ $$ = new ExpressionNode( build_tuple( $3 ) ); }
[4d51835]	638	\| '[' push ',' tuple_expression_list pop ']'
[1d4580a]	639	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $4 ) ) ); }
[4d51835]	640	\| '[' push assignment_expression ',' tuple_expression_list pop ']'
[1d4580a]	641	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $5 ) ) ); }
[4d51835]	642	;
[51b73452]	643
	644	tuple_expression_list:
[4d51835]	645	assignment_expression_opt
	646	\| tuple_expression_list ',' assignment_expression_opt
[1d4580a]	647	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	648	;
[51b73452]	649
	650	comma_expression:
[4d51835]	651	assignment_expression
[9706554]	652	\| comma_expression ',' assignment_expression
[d1625f8]	653	{ $$ = new ExpressionNode( build_comma( $1, $3 ) ); }
[4d51835]	654	;
[51b73452]	655
	656	comma_expression_opt:
[4d51835]	657	// empty
	658	{ $$ = 0; }
	659	\| comma_expression
	660	;
[51b73452]	661
[c11e31c]	662	//************************* STATEMENTS *****************************
[51b73452]	663
	664	statement:
[4d51835]	665	labeled_statement
	666	\| compound_statement
	667	\| expression_statement { $$ = $1; }
	668	\| selection_statement
	669	\| iteration_statement
	670	\| jump_statement
	671	\| exception_statement
	672	\| asm_statement
[097e2b0]	673	\| '^' postfix_expression '{' argument_expression_list '}' ';' // CFA
	674	{
[d9e2280]	675	Token fn;
[2298f728]	676	fn.str = new string( "^?{}" ); // location undefined
[e82aa9df]	677	$$ = new StatementNode( build_expr( new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) ) ) );
[097e2b0]	678	}
[4d51835]	679	;
[51b73452]	680
	681	labeled_statement:
[c6b1105]	682	// labels cannot be identifiers 0 or 1
	683	IDENTIFIER ':' attribute_list_opt statement
[1db21619]	684	{
	685	$$ = $4->add_label( $1 );
	686	}
[4d51835]	687	;
[51b73452]	688
	689	compound_statement:
[4d51835]	690	'{' '}'
[e82aa9df]	691	{ $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); }
[4d51835]	692	\| '{'
[de62360d]	693	// Two scopes are necessary because the block itself has a scope, but every declaration within the block also
	694	// requires its own scope
[4d51835]	695	push push
[51b1202]	696	local_label_declaration_opt // GCC, local labels
[4d51835]	697	block_item_list pop '}' // C99, intermix declarations and statements
[e82aa9df]	698	{ $$ = new StatementNode( build_compound( $5 ) ); }
[4d51835]	699	;
[b87a5ed]	700
	701	block_item_list: // C99
[4d51835]	702	block_item
	703	\| block_item_list push block_item
[1d4580a]	704	{ if ( $1 != 0 ) { $1->set_last( $3 ); $$ = $1; } }
[4d51835]	705	;
[51b73452]	706
	707	block_item:
[4d51835]	708	declaration // CFA, new & old style declarations
[e82aa9df]	709	{ $$ = new StatementNode( $1 ); }
[4d51835]	710	\| EXTENSION declaration // GCC
[8e9cbb2]	711	{ // mark all fields in list
[926af74]	712	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	713	iter->set_extension( true );
[e82aa9df]	714	$$ = new StatementNode( $2 );
[8e9cbb2]	715	}
[4d51835]	716	\| function_definition
[e82aa9df]	717	{ $$ = new StatementNode( $1 ); }
[4d51835]	718	\| statement pop
	719	;
[51b73452]	720
	721	statement_list:
[4d51835]	722	statement
	723	\| statement_list statement
[1d4580a]	724	{ if ( $1 != 0 ) { $1->set_last( $2 ); $$ = $1; } }
[4d51835]	725	;
[51b73452]	726
	727	expression_statement:
[4d51835]	728	comma_expression_opt ';'
[e82aa9df]	729	{ $$ = new StatementNode( build_expr( $1 ) ); }
[4d51835]	730	;
[51b73452]	731
	732	selection_statement:
[4d51835]	733	IF '(' comma_expression ')' statement %prec THEN
	734	// explicitly deal with the shift/reduce conflict on if/else
[e82aa9df]	735	{ $$ = new StatementNode( build_if( $3, $5, nullptr ) ); }
[4d51835]	736	\| IF '(' comma_expression ')' statement ELSE statement
[e82aa9df]	737	{ $$ = new StatementNode( build_if( $3, $5, $7 ) ); }
[4d51835]	738	\| SWITCH '(' comma_expression ')' case_clause // CFA
[e82aa9df]	739	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	740	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
[4e06c1e]	741	{
[e82aa9df]	742	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
[4e06c1e]	743	// The semantics of the declaration list is changed to include associated initialization, which is performed
	744	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	745	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	746	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	747	// statement.
[e82aa9df]	748	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	749	}
[4d51835]	750	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[e82aa9df]	751	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	752	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA
[4e06c1e]	753	{
[e82aa9df]	754	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
	755	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	756	}
[4d51835]	757	;
[b87a5ed]	758
[de62360d]	759	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	760	// clause allows a list of values and subranges.
[b87a5ed]	761
	762	case_value: // CFA
[4d51835]	763	constant_expression { $$ = $1; }
	764	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[d1625f8]	765	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	766	\| subrange // CFA, subrange
	767	;
[b87a5ed]	768
	769	case_value_list: // CFA
[e82aa9df]	770	case_value { $$ = new StatementNode( build_case( $1 ) ); }
[064e3ff]	771	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[e82aa9df]	772	\| case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); }
[4d51835]	773	;
[b87a5ed]	774
	775	case_label: // CFA
[8688ce1]	776	CASE case_value_list ':' { $$ = $2; }
[e82aa9df]	777	\| DEFAULT ':' { $$ = new StatementNode( build_default() ); }
[4d51835]	778	// A semantic check is required to ensure only one default clause per switch/choose statement.
	779	;
[b87a5ed]	780
	781	case_label_list: // CFA
[4d51835]	782	case_label
[1d4580a]	783	\| case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); }
[4d51835]	784	;
[b87a5ed]	785
	786	case_clause: // CFA
[e82aa9df]	787	case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	788	;
[b87a5ed]	789
	790	switch_clause_list_opt: // CFA
[4d51835]	791	// empty
	792	{ $$ = 0; }
	793	\| switch_clause_list
	794	;
[b87a5ed]	795
	796	switch_clause_list: // CFA
[4d51835]	797	case_label_list statement_list
[e82aa9df]	798	{ $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	799	\| switch_clause_list case_label_list statement_list
[e82aa9df]	800	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); }
[4d51835]	801	;
[b87a5ed]	802
	803	choose_clause_list_opt: // CFA
[4d51835]	804	// empty
	805	{ $$ = 0; }
	806	\| choose_clause_list
	807	;
[b87a5ed]	808
	809	choose_clause_list: // CFA
[4d51835]	810	case_label_list fall_through
[de62360d]	811	{ $$ = $1->append_last_case( $2 ); }
[4d51835]	812	\| case_label_list statement_list fall_through_opt
[e82aa9df]	813	{ $$ = $1->append_last_case( new StatementNode( build_compound( (StatementNode *)$2->set_last( $3 ) ) ) ); }
[4d51835]	814	\| choose_clause_list case_label_list fall_through
[1d4580a]	815	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( $3 ))); }
[4d51835]	816	\| choose_clause_list case_label_list statement_list fall_through_opt
[e82aa9df]	817	{ $$ = (StatementNode )( $1->set_last( $2->append_last_case( new StatementNode( build_compound( (StatementNode )$3->set_last( $4 ) ) ) ) ) ); }
[4d51835]	818	;
[b87a5ed]	819
	820	fall_through_opt: // CFA
[4d51835]	821	// empty
[ab57786]	822	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } // insert implicit break
[4d51835]	823	\| fall_through
	824	;
[b87a5ed]	825
	826	fall_through: // CFA
[4e06c1e]	827	FALLTHRU
	828	{ $$ = 0; }
	829	\| FALLTHRU ';'
	830	{ $$ = 0; }
[4d51835]	831	;
[51b73452]	832
	833	iteration_statement:
[4d51835]	834	WHILE '(' comma_expression ')' statement
[e82aa9df]	835	{ $$ = new StatementNode( build_while( $3, $5 ) ); }
[4d51835]	836	\| DO statement WHILE '(' comma_expression ')' ';'
[5b639ee]	837	{ $$ = new StatementNode( build_while( $5, $2, true ) ); }
[4d51835]	838	\| FOR '(' push for_control_expression ')' statement
[e82aa9df]	839	{ $$ = new StatementNode( build_for( $4, $6 ) ); }
[4d51835]	840	;
[51b73452]	841
	842	for_control_expression:
[4d51835]	843	comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt
[2f22cc4]	844	{ $$ = new ForCtl( $1, $4, $6 ); }
[4d51835]	845	\| declaration comma_expression_opt ';' comma_expression_opt // C99
[2f22cc4]	846	{ $$ = new ForCtl( $1, $2, $4 ); }
[d1625f8]	847	;
[51b73452]	848
	849	jump_statement:
[c6b1105]	850	GOTO IDENTIFIER ';'
[ab57786]	851	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); }
[4d51835]	852	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	853	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	854	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	855	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[4d51835]	856	\| CONTINUE ';'
[de62360d]	857	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	858	{ $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); }
[4e06c1e]	859	\| CONTINUE IDENTIFIER ';' // CFA, multi-level continue
[de62360d]	860	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	861	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	862	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); }
[4d51835]	863	\| BREAK ';'
[de62360d]	864	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	865	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); }
[4e06c1e]	866	\| BREAK IDENTIFIER ';' // CFA, multi-level exit
[de62360d]	867	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	868	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	869	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); }
[4d51835]	870	\| RETURN comma_expression_opt ';'
[e82aa9df]	871	{ $$ = new StatementNode( build_return( $2 ) ); }
[8cc5cb0]	872	\| THROW assignment_expression_opt ';' // handles rethrow
[e82aa9df]	873	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	874	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[e82aa9df]	875	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	876	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[e82aa9df]	877	{ $$ = new StatementNode( build_throw( $2 ) ); }
[4d51835]	878	;
[51b73452]	879
	880	exception_statement:
[4d51835]	881	TRY compound_statement handler_list
[e82aa9df]	882	{ $$ = new StatementNode( build_try( $2, $3, 0 ) ); }
[4d51835]	883	\| TRY compound_statement finally_clause
[e82aa9df]	884	{ $$ = new StatementNode( build_try( $2, 0, $3 ) ); }
[4d51835]	885	\| TRY compound_statement handler_list finally_clause
[e82aa9df]	886	{ $$ = new StatementNode( build_try( $2, $3, $4 ) ); }
[4d51835]	887	;
[51b73452]	888
	889	handler_list:
[4d51835]	890	handler_clause
[de62360d]	891	// ISO/IEC 9899:1999 Section 15.3(6 ) If present, a "..." handler shall be the last handler for its try block.
[4d51835]	892	\| CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	893	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[4d51835]	894	\| handler_clause CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	895	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[02e5ab6]	896	\| CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	897	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[02e5ab6]	898	\| handler_clause CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	899	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[4d51835]	900	;
[51b73452]	901
	902	handler_clause:
[4d51835]	903	CATCH '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	904	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[4d51835]	905	\| handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop
[1b772749]	906	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[02e5ab6]	907	\| CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	908	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[02e5ab6]	909	\| handler_clause CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	910	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[4d51835]	911	;
[51b73452]	912
	913	finally_clause:
[4d51835]	914	FINALLY compound_statement
	915	{
[e82aa9df]	916	$$ = new StatementNode( build_finally( $2 ) );
[4d51835]	917	}
	918	;
[51b73452]	919
	920	exception_declaration:
[4d51835]	921	// A semantic check is required to ensure type_specifier does not create a new type, e.g.:
	922	//
	923	// catch ( struct { int i; } x ) ...
	924	//
	925	// This new type cannot catch any thrown type because of name equivalence among types.
	926	type_specifier
	927	\| type_specifier declarator
	928	{
	929	typedefTable.addToEnclosingScope( TypedefTable::ID );
	930	$$ = $2->addType( $1 );
	931	}
	932	\| type_specifier variable_abstract_declarator
	933	{ $$ = $2->addType( $1 ); }
	934	\| new_abstract_declarator_tuple no_attr_identifier // CFA
	935	{
	936	typedefTable.addToEnclosingScope( TypedefTable::ID );
	937	$$ = $1->addName( $2 );
	938	}
	939	\| new_abstract_declarator_tuple // CFA
	940	;
[51b73452]	941
	942	asm_statement:
[ab57786]	943	ASM asm_volatile_opt '(' string_literal ')' ';'
[e82aa9df]	944	{ $$ = new StatementNode( build_asmstmt( $2, $4, 0 ) ); }
[ab57786]	945	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[e82aa9df]	946	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6 ) ); }
[ab57786]	947	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[e82aa9df]	948	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8 ) ); }
[ab57786]	949	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[e82aa9df]	950	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8, $10 ) ); }
[ab57786]	951	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[e82aa9df]	952	{ $$ = new StatementNode( build_asmstmt( $2, $5, 0, $8, $10, $12 ) ); }
[7f5566b]	953	;
	954
	955	asm_volatile_opt: // GCC
	956	// empty
	957	{ $$ = false; }
	958	\| VOLATILE
	959	{ $$ = true; }
[4d51835]	960	;
[b87a5ed]	961
	962	asm_operands_opt: // GCC
[4d51835]	963	// empty
[7f5566b]	964	{ $$ = 0; } // use default argument
[4d51835]	965	\| asm_operands_list
	966	;
[b87a5ed]	967
	968	asm_operands_list: // GCC
[4d51835]	969	asm_operand
	970	\| asm_operands_list ',' asm_operand
[1d4580a]	971	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	972	;
[b87a5ed]	973
	974	asm_operand: // GCC
[ab57786]	975	string_literal '(' constant_expression ')'
[e82aa9df]	976	{ $$ = new ExpressionNode( build_asmexpr( 0, $1, $3 ) ); }
[ab57786]	977	\| '[' constant_expression ']' string_literal '(' constant_expression ')'
[1b772749]	978	{ $$ = new ExpressionNode( build_asmexpr( $2, $4, $6 ) ); }
[7f5566b]	979	;
	980
[4e06c1e]	981	asm_clobbers_list_opt: // GCC
[7f5566b]	982	// empty
	983	{ $$ = 0; } // use default argument
[ab57786]	984	\| string_literal
[d1625f8]	985	{ $$ = new ExpressionNode( $1 ); }
[ab57786]	986	\| asm_clobbers_list_opt ',' string_literal
[e82aa9df]	987	{ $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); }
[4d51835]	988	;
[b87a5ed]	989
[7f5566b]	990	label_list:
	991	no_attr_identifier
[ab57786]	992	{
	993	$$ = new LabelNode(); $$->labels.push_back( *$1 );
	994	delete $1; // allocated by lexer
	995	}
[7f5566b]	996	\| label_list ',' no_attr_identifier
[ab57786]	997	{
	998	$$ = $1; $1->labels.push_back( *$3 );
	999	delete $3; // allocated by lexer
	1000	}
[4d51835]	1001	;
[51b73452]	1002
[c11e31c]	1003	//***************************** DECLARATIONS *******************************
[51b73452]	1004
[b87a5ed]	1005	declaration_list_opt: // used at beginning of switch statement
[4d51835]	1006	pop
	1007	{ $$ = 0; }
	1008	\| declaration_list
	1009	;
[51b73452]	1010
	1011	declaration_list:
[4d51835]	1012	declaration
	1013	\| declaration_list push declaration
	1014	{ $$ = $1->appendList( $3 ); }
	1015	;
[51b73452]	1016
[b87a5ed]	1017	old_declaration_list_opt: // used to declare parameter types in K&R style functions
[4d51835]	1018	pop
	1019	{ $$ = 0; }
	1020	\| old_declaration_list
	1021	;
[51b73452]	1022
	1023	old_declaration_list:
[4d51835]	1024	old_declaration
	1025	\| old_declaration_list push old_declaration
	1026	{ $$ = $1->appendList( $3 ); }
	1027	;
[b87a5ed]	1028
[51b1202]	1029	local_label_declaration_opt: // GCC, local label
[4d51835]	1030	// empty
[51b1202]	1031	\| local_label_declaration_list
[4d51835]	1032	;
[b87a5ed]	1033
[51b1202]	1034	local_label_declaration_list: // GCC, local label
	1035	LABEL local_label_list ';'
	1036	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1037	;
[b87a5ed]	1038
[51b1202]	1039	local_label_list: // GCC, local label
[7f5566b]	1040	no_attr_identifier_or_type_name {}
[51b1202]	1041	\| local_label_list ',' no_attr_identifier_or_type_name {}
[4d51835]	1042	;
[b87a5ed]	1043
	1044	declaration: // CFA, new & old style declarations
[4d51835]	1045	new_declaration
	1046	\| old_declaration
	1047	;
[b87a5ed]	1048
[de62360d]	1049	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1050	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1051	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1052	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1053	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1054	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1055	//
[b87a5ed]	1056	// CFA C
	1057	// [10] int x; int x[10]; // array of 10 integers
	1058	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1059
	1060	new_declaration: // CFA
[4d51835]	1061	new_variable_declaration pop ';'
	1062	\| new_typedef_declaration pop ';'
	1063	\| new_function_declaration pop ';'
	1064	\| type_declaring_list pop ';'
[4040425]	1065	\| trait_specifier pop ';'
[4d51835]	1066	;
[b87a5ed]	1067
	1068	new_variable_declaration: // CFA
[4d51835]	1069	new_variable_specifier initializer_opt
	1070	{
	1071	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1072	$$ = $1->addInitializer( $2 );
[4d51835]	1073	}
	1074	\| declaration_qualifier_list new_variable_specifier initializer_opt
[de62360d]	1075	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	1076	// them as a type_qualifier cannot appear in that context.
[4d51835]	1077	{
	1078	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1079	$$ = $2->addQualifiers( $1 )->addInitializer( $3 );;
[4d51835]	1080	}
[2871210]	1081	\| new_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[4d51835]	1082	{
	1083	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
[3cfe27f]	1084	$$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) );
[4d51835]	1085	}
	1086	;
[b87a5ed]	1087
	1088	new_variable_specifier: // CFA
[de62360d]	1089	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1090	// storage-class
[2871210]	1091	new_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[4d51835]	1092	{
	1093	typedefTable.setNextIdentifier( *$2 );
	1094	$$ = $1->addName( $2 );
	1095	}
[2871210]	1096	\| new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1097	{
	1098	typedefTable.setNextIdentifier( *$2 );
	1099	$$ = $1->addName( $2 );
	1100	}
[2871210]	1101	\| type_qualifier_list new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1102	{
	1103	typedefTable.setNextIdentifier( *$3 );
	1104	$$ = $2->addQualifiers( $1 )->addName( $3 );
	1105	}
	1106	;
[b87a5ed]	1107
	1108	new_function_declaration: // CFA
[4d51835]	1109	new_function_specifier
	1110	{
	1111	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1112	$$ = $1;
	1113	}
	1114	\| type_qualifier_list new_function_specifier
	1115	{
	1116	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1117	$$ = $2->addQualifiers( $1 );
	1118	}
	1119	\| declaration_qualifier_list new_function_specifier
	1120	{
	1121	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1122	$$ = $2->addQualifiers( $1 );
	1123	}
	1124	\| declaration_qualifier_list type_qualifier_list new_function_specifier
	1125	{
	1126	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1127	$$ = $3->addQualifiers( $1 )->addQualifiers( $2 );
	1128	}
[2871210]	1129	\| new_function_declaration pop ',' push identifier_or_type_name
[4d51835]	1130	{
	1131	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
	1132	$$ = $1->appendList( $1->cloneType( $5 ) );
	1133	}
	1134	;
[b87a5ed]	1135
	1136	new_function_specifier: // CFA
[2871210]	1137	'[' ']' identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' // S/R conflict
[4d51835]	1138	{
[2871210]	1139	$$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
[4d51835]	1140	}
[2871210]	1141	// '[' ']' identifier '(' push new_parameter_type_list_opt pop ')'
	1142	// {
	1143	// typedefTable.setNextIdentifier( *$5 );
	1144	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1145	// }
	1146	// \| '[' ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')'
	1147	// {
	1148	// typedefTable.setNextIdentifier( *$5 );
	1149	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1150	// }
	1151	// \| '[' ']' typegen_name
	1152	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	1153	//
[2871210]	1154	// '[' ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[4d51835]	1155	// '[' ']' type_specifier
	1156	//
[2871210]	1157	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	1158	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
	1159	\| new_abstract_tuple identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[de62360d]	1160	// To obtain LR(1 ), this rule must be factored out from function return type (see new_abstract_declarator).
[4d51835]	1161	{
	1162	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1163	}
[2871210]	1164	\| new_function_return identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[4d51835]	1165	{
	1166	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1167	}
	1168	;
[b87a5ed]	1169
	1170	new_function_return: // CFA
[4d51835]	1171	'[' push new_parameter_list pop ']'
	1172	{ $$ = DeclarationNode::newTuple( $3 ); }
	1173	\| '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']'
[de62360d]	1174	// To obtain LR(1 ), the last new_abstract_parameter_list is added into this flattened rule to lookahead to the
	1175	// ']'.
[4d51835]	1176	{ $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
	1177	;
[b87a5ed]	1178
	1179	new_typedef_declaration: // CFA
[4d51835]	1180	TYPEDEF new_variable_specifier
	1181	{
[de62360d]	1182	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1183	$$ = $2->addTypedef();
	1184	}
	1185	\| TYPEDEF new_function_specifier
	1186	{
[de62360d]	1187	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1188	$$ = $2->addTypedef();
	1189	}
	1190	\| new_typedef_declaration pop ',' push no_attr_identifier
	1191	{
[de62360d]	1192	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1193	$$ = $1->appendList( $1->cloneType( $5 ) );
	1194	}
	1195	;
[b87a5ed]	1196
[de62360d]	1197	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	1198	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	1199
	1200	typedef_declaration:
[4d51835]	1201	TYPEDEF type_specifier declarator
	1202	{
[de62360d]	1203	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1204	$$ = $3->addType( $2 )->addTypedef();
	1205	}
	1206	\| typedef_declaration pop ',' push declarator
	1207	{
[de62360d]	1208	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1209	$$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
	1210	}
[de62360d]	1211	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[4d51835]	1212	{
[de62360d]	1213	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1214	$$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
	1215	}
	1216	\| type_specifier TYPEDEF declarator
	1217	{
[de62360d]	1218	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1219	$$ = $3->addType( $1 )->addTypedef();
	1220	}
	1221	\| type_specifier TYPEDEF type_qualifier_list declarator
	1222	{
[de62360d]	1223	typedefTable.addToEnclosingScope( TypedefTable::TD );
	1224	$$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
[4d51835]	1225	}
	1226	;
[b87a5ed]	1227
[721f17a]	1228	typedef_expression:
	1229	// GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[4d51835]	1230	TYPEDEF no_attr_identifier '=' assignment_expression
	1231	{
[de62360d]	1232	typedefTable.addToEnclosingScope( *$2, TypedefTable::TD );
[4d51835]	1233	$$ = DeclarationNode::newName( 0 ); // XXX
	1234	}
	1235	\| typedef_expression pop ',' push no_attr_identifier '=' assignment_expression
	1236	{
[de62360d]	1237	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1238	$$ = DeclarationNode::newName( 0 ); // XXX
	1239	}
	1240	;
[51b73452]	1241
	1242	old_declaration:
[4d51835]	1243	declaring_list pop ';'
	1244	\| typedef_declaration pop ';'
	1245	\| typedef_expression pop ';' // GCC, naming expression type
	1246	\| sue_declaration_specifier pop ';'
	1247	;
[51b73452]	1248
	1249	declaring_list:
[de62360d]	1250	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1251	// storage-class
[4d51835]	1252	declaration_specifier declarator asm_name_opt initializer_opt
	1253	{
	1254	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1255	$$ = ( $2->addType( $1 ))->addInitializer( $4 );
[4d51835]	1256	}
	1257	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
	1258	{
	1259	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1260	$$ = $1->appendList( $1->cloneBaseType( $4->addInitializer( $6 ) ) );
[4d51835]	1261	}
	1262	;
[b87a5ed]	1263
	1264	declaration_specifier: // type specifier + storage class
[4d51835]	1265	basic_declaration_specifier
	1266	\| sue_declaration_specifier
	1267	\| typedef_declaration_specifier
	1268	\| typegen_declaration_specifier
	1269	;
[b87a5ed]	1270
	1271	type_specifier: // declaration specifier - storage class
[4d51835]	1272	basic_type_specifier
	1273	\| sue_type_specifier
	1274	\| typedef_type_specifier
	1275	\| typegen_type_specifier
	1276	;
[b87a5ed]	1277
	1278	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	1279	// empty
	1280	{ $$ = 0; }
	1281	\| type_qualifier_list
	1282	;
[51b73452]	1283
	1284	type_qualifier_list:
[de62360d]	1285	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	1286	//
[de62360d]	1287	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	1288	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	1289	// appeared only once.
[4d51835]	1290	type_qualifier
	1291	\| type_qualifier_list type_qualifier
	1292	{ $$ = $1->addQualifiers( $2 ); }
	1293	;
[51b73452]	1294
	1295	type_qualifier:
[4d51835]	1296	type_qualifier_name
	1297	\| attribute
[c1c1112]	1298	//{ $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
[4d51835]	1299	;
[51b73452]	1300
	1301	type_qualifier_name:
[4d51835]	1302	CONST
	1303	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); }
	1304	\| RESTRICT
	1305	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); }
	1306	\| VOLATILE
	1307	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); }
	1308	\| LVALUE // CFA
	1309	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); }
	1310	\| ATOMIC
	1311	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); }
	1312	\| FORALL '('
	1313	{
	1314	typedefTable.enterScope();
	1315	}
	1316	type_parameter_list ')' // CFA
	1317	{
	1318	typedefTable.leaveScope();
	1319	$$ = DeclarationNode::newForall( $4 );
	1320	}
	1321	;
[51b73452]	1322
	1323	declaration_qualifier_list:
[4d51835]	1324	storage_class_list
[de62360d]	1325	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	1326	{ $$ = $1->addQualifiers( $2 ); }
	1327	\| declaration_qualifier_list type_qualifier_list storage_class_list
	1328	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1329	;
[51b73452]	1330
	1331	storage_class_list:
[de62360d]	1332	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	1333	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	1334	//
[de62360d]	1335	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	1336	// specifiers in a declaration.
[4d51835]	1337	storage_class
	1338	\| storage_class_list storage_class
	1339	{ $$ = $1->addQualifiers( $2 ); }
	1340	;
[51b73452]	1341
	1342	storage_class:
[4d51835]	1343	EXTERN
	1344	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); }
	1345	\| STATIC
	1346	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); }
	1347	\| AUTO
	1348	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); }
	1349	\| REGISTER
	1350	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); }
	1351	\| INLINE // C99
[c1c1112]	1352	//{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); }
	1353	{ $$ = new DeclarationNode; $$->isInline = true; }
[4d51835]	1354	\| FORTRAN // C99
	1355	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); }
[68cd1ce]	1356	\| NORETURN // C11
[c1c1112]	1357	//{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Noreturn ); }
	1358	{ $$ = new DeclarationNode; $$->isNoreturn = true; }
[68cd1ce]	1359	\| THREADLOCAL // C11
	1360	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Threadlocal ); }
[4d51835]	1361	;
[51b73452]	1362
	1363	basic_type_name:
[4d51835]	1364	CHAR
	1365	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
	1366	\| DOUBLE
	1367	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
	1368	\| FLOAT
	1369	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
	1370	\| INT
	1371	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
	1372	\| LONG
[5b639ee]	1373	{ $$ = DeclarationNode::newLength( DeclarationNode::Long ); }
[4d51835]	1374	\| SHORT
[5b639ee]	1375	{ $$ = DeclarationNode::newLength( DeclarationNode::Short ); }
[4d51835]	1376	\| SIGNED
[5b639ee]	1377	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); }
[4d51835]	1378	\| UNSIGNED
[5b639ee]	1379	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); }
[4d51835]	1380	\| VOID
	1381	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1382	\| BOOL // C99
	1383	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
	1384	\| COMPLEX // C99
[5b639ee]	1385	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); }
[4d51835]	1386	\| IMAGINARY // C99
[5b639ee]	1387	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); }
[90c3b1c]	1388	\| VALIST // GCC, __builtin_va_list
	1389	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); }
[4d51835]	1390	;
[51b73452]	1391
	1392	basic_declaration_specifier:
[4d51835]	1393	// A semantic check is necessary for conflicting storage classes.
	1394	basic_type_specifier
	1395	\| declaration_qualifier_list basic_type_specifier
	1396	{ $$ = $2->addQualifiers( $1 ); }
	1397	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1398	{ $$ = $1->addQualifiers( $2 ); }
	1399	\| basic_declaration_specifier storage_class type_qualifier_list
	1400	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1401	\| basic_declaration_specifier storage_class basic_type_specifier
	1402	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	1403	;
[51b73452]	1404
	1405	basic_type_specifier:
[4d51835]	1406	direct_type_name
	1407	\| type_qualifier_list_opt indirect_type_name type_qualifier_list_opt
	1408	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	1409	;
[51b73452]	1410
	1411	direct_type_name:
[4d51835]	1412	// A semantic check is necessary for conflicting type qualifiers.
	1413	basic_type_name
	1414	\| type_qualifier_list basic_type_name
	1415	{ $$ = $2->addQualifiers( $1 ); }
	1416	\| direct_type_name type_qualifier
	1417	{ $$ = $1->addQualifiers( $2 ); }
	1418	\| direct_type_name basic_type_name
	1419	{ $$ = $1->addType( $2 ); }
	1420	;
[51b73452]	1421
	1422	indirect_type_name:
[4d51835]	1423	TYPEOF '(' type_name ')' // GCC: typeof(x) y;
	1424	{ $$ = $3; }
	1425	\| TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y;
	1426	{ $$ = DeclarationNode::newTypeof( $3 ); }
	1427	\| ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y;
	1428	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1429	\| ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y;
	1430	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1431	;
[51b73452]	1432
	1433	sue_declaration_specifier:
[4d51835]	1434	sue_type_specifier
	1435	\| declaration_qualifier_list sue_type_specifier
	1436	{ $$ = $2->addQualifiers( $1 ); }
	1437	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1438	{ $$ = $1->addQualifiers( $2 ); }
	1439	\| sue_declaration_specifier storage_class type_qualifier_list
	1440	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1441	;
[51b73452]	1442
	1443	sue_type_specifier:
[4d51835]	1444	elaborated_type_name // struct, union, enum
	1445	\| type_qualifier_list elaborated_type_name
	1446	{ $$ = $2->addQualifiers( $1 ); }
	1447	\| sue_type_specifier type_qualifier
	1448	{ $$ = $1->addQualifiers( $2 ); }
	1449	;
[51b73452]	1450
	1451	typedef_declaration_specifier:
[4d51835]	1452	typedef_type_specifier
	1453	\| declaration_qualifier_list typedef_type_specifier
	1454	{ $$ = $2->addQualifiers( $1 ); }
	1455	\| typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1456	{ $$ = $1->addQualifiers( $2 ); }
	1457	\| typedef_declaration_specifier storage_class type_qualifier_list
	1458	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1459	;
[b87a5ed]	1460
	1461	typedef_type_specifier: // typedef types
[4d51835]	1462	TYPEDEFname
	1463	{ $$ = DeclarationNode::newFromTypedef( $1 ); }
	1464	\| type_qualifier_list TYPEDEFname
	1465	{ $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); }
	1466	\| typedef_type_specifier type_qualifier
	1467	{ $$ = $1->addQualifiers( $2 ); }
	1468	;
[51b73452]	1469
	1470	elaborated_type_name:
[4d51835]	1471	aggregate_name
	1472	\| enum_name
	1473	;
[51b73452]	1474
	1475	aggregate_name:
[4d51835]	1476	aggregate_key '{' field_declaration_list '}'
[2298f728]	1477	{ $$ = DeclarationNode::newAggregate( $1, nullptr, nullptr, $3, true ); }
[2871210]	1478	\| aggregate_key no_attr_identifier_or_type_name
[45161b4d]	1479	{
	1480	typedefTable.makeTypedef( *$2 );
[2298f728]	1481	$$ = DeclarationNode::newAggregate( $1, $2, nullptr, nullptr, false );
[45161b4d]	1482	}
	1483	\| aggregate_key no_attr_identifier_or_type_name
	1484	{ typedefTable.makeTypedef( *$2 ); }
	1485	'{' field_declaration_list '}'
[1b772749]	1486	{ $$ = DeclarationNode::newAggregate( $1, $2, nullptr, $5, true ); }
[721f17a]	1487	\| aggregate_key '(' type_name_list ')' '{' field_declaration_list '}' // CFA
[2298f728]	1488	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $3, $6, false ); }
[2871210]	1489	\| aggregate_key typegen_name // CFA, S/R conflict
	1490	{ $$ = $2; }
[4d51835]	1491	;
[51b73452]	1492
	1493	aggregate_key:
[4d51835]	1494	STRUCT attribute_list_opt
	1495	{ $$ = DeclarationNode::Struct; }
	1496	\| UNION attribute_list_opt
	1497	{ $$ = DeclarationNode::Union; }
	1498	;
[51b73452]	1499
	1500	field_declaration_list:
[5d125e4]	1501	// empty
	1502	{ $$ = 0; }
[4d51835]	1503	\| field_declaration_list field_declaration
[5d125e4]	1504	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1505	;
[51b73452]	1506
	1507	field_declaration:
[4d51835]	1508	new_field_declaring_list ';' // CFA, new style field declaration
	1509	\| EXTENSION new_field_declaring_list ';' // GCC
[ca35c51]	1510	{ $$ = $2->set_extension( true ); }
[4d51835]	1511	\| field_declaring_list ';'
	1512	\| EXTENSION field_declaring_list ';' // GCC
[8e9cbb2]	1513	{ // mark all fields in list
[926af74]	1514	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	1515	iter->set_extension( true );
	1516	$$ = $2;
	1517	}
[4d51835]	1518	;
[b87a5ed]	1519
	1520	new_field_declaring_list: // CFA, new style field declaration
[4d51835]	1521	new_abstract_declarator_tuple // CFA, no field name
[2871210]	1522	\| new_abstract_declarator_tuple no_attr_identifier_or_type_name
[4d51835]	1523	{ $$ = $1->addName( $2 ); }
[2871210]	1524	\| new_field_declaring_list ',' no_attr_identifier_or_type_name
[4d51835]	1525	{ $$ = $1->appendList( $1->cloneType( $3 ) ); }
	1526	\| new_field_declaring_list ',' // CFA, no field name
	1527	{ $$ = $1->appendList( $1->cloneType( 0 ) ); }
	1528	;
[51b73452]	1529
	1530	field_declaring_list:
[4d51835]	1531	type_specifier field_declarator
	1532	{ $$ = $2->addType( $1 ); }
	1533	\| field_declaring_list ',' attribute_list_opt field_declarator
	1534	{ $$ = $1->appendList( $1->cloneBaseType( $4 ) ); }
	1535	;
[51b73452]	1536
	1537	field_declarator:
[4d51835]	1538	// empty
	1539	{ $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name
	1540	\| bit_subrange_size // no field name
	1541	{ $$ = DeclarationNode::newBitfield( $1 ); }
	1542	\| variable_declarator bit_subrange_size_opt
	1543	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1544	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	1545	\| variable_type_redeclarator bit_subrange_size_opt
[4d51835]	1546	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1547	{ $$ = $1->addBitfield( $2 ); }
	1548	\| variable_abstract_declarator // CFA, no field name
	1549	;
[51b73452]	1550
	1551	bit_subrange_size_opt:
[4d51835]	1552	// empty
	1553	{ $$ = 0; }
	1554	\| bit_subrange_size
	1555	{ $$ = $1; }
	1556	;
[51b73452]	1557
	1558	bit_subrange_size:
[4d51835]	1559	':' constant_expression
	1560	{ $$ = $2; }
	1561	;
[51b73452]	1562
	1563	enum_key:
[4d51835]	1564	ENUM attribute_list_opt
	1565	;
[51b73452]	1566
	1567	enum_name:
[4d51835]	1568	enum_key '{' enumerator_list comma_opt '}'
[2298f728]	1569	{ $$ = DeclarationNode::newEnum( nullptr, $3 ); }
[2871210]	1570	\| enum_key no_attr_identifier_or_type_name
[45161b4d]	1571	{
	1572	typedefTable.makeTypedef( *$2 );
	1573	$$ = DeclarationNode::newEnum( $2, 0 );
	1574	}
	1575	\| enum_key no_attr_identifier_or_type_name
	1576	{ typedefTable.makeTypedef( *$2 ); }
	1577	'{' enumerator_list comma_opt '}'
	1578	{ $$ = DeclarationNode::newEnum( $2, $5 ); }
[4d51835]	1579	;
[51b73452]	1580
	1581	enumerator_list:
[2871210]	1582	no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1583	{ $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
[2871210]	1584	\| enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1585	{ $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
	1586	;
[51b73452]	1587
	1588	enumerator_value_opt:
[4d51835]	1589	// empty
	1590	{ $$ = 0; }
	1591	\| '=' constant_expression
	1592	{ $$ = $2; }
	1593	;
[51b73452]	1594
[c11e31c]	1595	// Minimum of one parameter after which ellipsis is allowed only at the end.
[51b73452]	1596
[b87a5ed]	1597	new_parameter_type_list_opt: // CFA
[4d51835]	1598	// empty
	1599	{ $$ = 0; }
	1600	\| new_parameter_type_list
	1601	;
[b87a5ed]	1602
	1603	new_parameter_type_list: // CFA, abstract + real
[4d51835]	1604	new_abstract_parameter_list
	1605	\| new_parameter_list
	1606	\| new_parameter_list pop ',' push new_abstract_parameter_list
	1607	{ $$ = $1->appendList( $5 ); }
	1608	\| new_abstract_parameter_list pop ',' push ELLIPSIS
	1609	{ $$ = $1->addVarArgs(); }
	1610	\| new_parameter_list pop ',' push ELLIPSIS
	1611	{ $$ = $1->addVarArgs(); }
	1612	;
[b87a5ed]	1613
	1614	new_parameter_list: // CFA
[de62360d]	1615	// To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last new_abstract_parameter_list is
	1616	// factored out from new_parameter_list, flattening the rules to get lookahead to the ']'.
[4d51835]	1617	new_parameter_declaration
	1618	\| new_abstract_parameter_list pop ',' push new_parameter_declaration
	1619	{ $$ = $1->appendList( $5 ); }
	1620	\| new_parameter_list pop ',' push new_parameter_declaration
	1621	{ $$ = $1->appendList( $5 ); }
	1622	\| new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration
	1623	{ $$ = $1->appendList( $5 )->appendList( $9 ); }
	1624	;
[b87a5ed]	1625
	1626	new_abstract_parameter_list: // CFA, new & old style abstract
[4d51835]	1627	new_abstract_parameter_declaration
	1628	\| new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration
	1629	{ $$ = $1->appendList( $5 ); }
	1630	;
[51b73452]	1631
	1632	parameter_type_list_opt:
[4d51835]	1633	// empty
	1634	{ $$ = 0; }
	1635	\| parameter_type_list
	1636	;
[51b73452]	1637
	1638	parameter_type_list:
[4d51835]	1639	parameter_list
	1640	\| parameter_list pop ',' push ELLIPSIS
	1641	{ $$ = $1->addVarArgs(); }
	1642	;
[b87a5ed]	1643
	1644	parameter_list: // abstract + real
[4d51835]	1645	abstract_parameter_declaration
	1646	\| parameter_declaration
	1647	\| parameter_list pop ',' push abstract_parameter_declaration
	1648	{ $$ = $1->appendList( $5 ); }
	1649	\| parameter_list pop ',' push parameter_declaration
	1650	{ $$ = $1->appendList( $5 ); }
	1651	;
[51b73452]	1652
[de62360d]	1653	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	1654	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	1655
[b87a5ed]	1656	new_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1657	parameter_declaration
[2871210]	1658	\| new_identifier_parameter_declarator_no_tuple identifier_or_type_name assignment_opt
[4d51835]	1659	{ $$ = $1->addName( $2 ); }
[2871210]	1660	\| new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1661	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1662	{ $$ = $1->addName( $2 ); }
[2871210]	1663	\| type_qualifier_list new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1664	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
	1665	\| new_function_specifier
	1666	;
[b87a5ed]	1667
	1668	new_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1669	abstract_parameter_declaration
	1670	\| new_identifier_parameter_declarator_no_tuple
	1671	\| new_abstract_tuple
	1672	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1673	\| type_qualifier_list new_abstract_tuple
	1674	{ $$ = $2->addQualifiers( $1 ); }
	1675	\| new_abstract_function
	1676	;
[51b73452]	1677
	1678	parameter_declaration:
[4d51835]	1679	declaration_specifier identifier_parameter_declarator assignment_opt
	1680	{
	1681	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1682	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1683	}
[2871210]	1684	\| declaration_specifier type_parameter_redeclarator assignment_opt
[4d51835]	1685	{
	1686	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1687	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1688	}
	1689	;
[51b73452]	1690
	1691	abstract_parameter_declaration:
[4d51835]	1692	declaration_specifier
	1693	\| declaration_specifier abstract_parameter_declarator
	1694	{ $$ = $2->addType( $1 ); }
	1695	;
[51b73452]	1696
[c11e31c]	1697	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	1698	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	1699	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	1700
[b87a5ed]	1701	identifier_list: // K&R-style parameter list => no types
[4d51835]	1702	no_attr_identifier
	1703	{ $$ = DeclarationNode::newName( $1 ); }
	1704	\| identifier_list ',' no_attr_identifier
	1705	{ $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
	1706	;
[51b73452]	1707
[2871210]	1708	identifier_or_type_name:
[4d51835]	1709	identifier
	1710	\| TYPEDEFname
	1711	\| TYPEGENname
	1712	;
[51b73452]	1713
[2871210]	1714	no_01_identifier_or_type_name:
[4d51835]	1715	no_01_identifier
	1716	\| TYPEDEFname
	1717	\| TYPEGENname
	1718	;
[51b73452]	1719
[2871210]	1720	no_attr_identifier_or_type_name:
[4d51835]	1721	no_attr_identifier
	1722	\| TYPEDEFname
[721f17a]	1723	\| TYPEGENname
[4d51835]	1724	;
[b87a5ed]	1725
	1726	type_name_no_function: // sizeof, alignof, cast (constructor)
[4d51835]	1727	new_abstract_declarator_tuple // CFA
	1728	\| type_specifier
	1729	\| type_specifier variable_abstract_declarator
	1730	{ $$ = $2->addType( $1 ); }
	1731	;
[b87a5ed]	1732
	1733	type_name: // typeof, assertion
[4d51835]	1734	new_abstract_declarator_tuple // CFA
	1735	\| new_abstract_function // CFA
	1736	\| type_specifier
	1737	\| type_specifier abstract_declarator
	1738	{ $$ = $2->addType( $1 ); }
	1739	;
[51b73452]	1740
	1741	initializer_opt:
[4d51835]	1742	// empty
	1743	{ $$ = 0; }
[2871210]	1744	\| '=' initializer
	1745	{ $$ = $2; }
[097e2b0]	1746	\| ATassign initializer
[974906e2]	1747	{ $$ = $2->set_maybeConstructed( false ); }
[4d51835]	1748	;
[51b73452]	1749
	1750	initializer:
[de62360d]	1751	assignment_expression { $$ = new InitializerNode( $1 ); }
	1752	\| '{' initializer_list comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	1753	;
[51b73452]	1754
	1755	initializer_list:
[097e2b0]	1756	// empty
	1757	{ $$ = 0; }
	1758	\| initializer
[4d51835]	1759	\| designation initializer { $$ = $2->set_designators( $1 ); }
[1d4580a]	1760	\| initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); }
[4d51835]	1761	\| initializer_list ',' designation initializer
[1d4580a]	1762	{ $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); }
[4d51835]	1763	;
[b87a5ed]	1764
[de62360d]	1765	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	1766	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	1767	//
[b87a5ed]	1768	// int x[10] = { [1] = 3 };
[c11e31c]	1769	//
[de62360d]	1770	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	1771	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	1772	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	1773	// shift/reduce conflicts
[51b73452]	1774
	1775	designation:
[4d51835]	1776	designator_list ':' // C99, CFA uses ":" instead of "="
[2871210]	1777	\| no_attr_identifier_or_type_name ':' // GCC, field name
[d1625f8]	1778	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	1779	;
[51b73452]	1780
[b87a5ed]	1781	designator_list: // C99
[4d51835]	1782	designator
[2871210]	1783	\| designator_list designator
[1d4580a]	1784	{ $$ = (ExpressionNode *)( $1->set_last( $2 ) ); }
[d1625f8]	1785	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	1786	;
[51b73452]	1787
	1788	designator:
[d1625f8]	1789	'.' no_attr_identifier_or_type_name // C99, field name
	1790	{ $$ = new ExpressionNode( build_varref( $2 ) ); }
[4d51835]	1791	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	1792	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	1793	{ $$ = $3; }
[4d51835]	1794	\| '[' push subrange pop ']' // CFA, multiple array elements
[d1625f8]	1795	{ $$ = $3; }
[4d51835]	1796	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[d1625f8]	1797	{ $$ = new ExpressionNode( build_range( $3, $5 ) ); }
[4d51835]	1798	\| '.' '[' push field_list pop ']' // CFA, tuple field selector
[d1625f8]	1799	{ $$ = $4; }
[4d51835]	1800	;
[51b73452]	1801
[de62360d]	1802	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	1803	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	1804	//
	1805	// Overloading: function, data, and operator identifiers may be overloaded.
	1806	//
[de62360d]	1807	// Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
	1808	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	1809	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	1810	//
[de62360d]	1811	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	1812	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	1813	//
	1814	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	1815	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	1816	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	1817	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	1818	// on type arguments of polymorphic functions.
[c11e31c]	1819
[b87a5ed]	1820	typegen_declaration_specifier: // CFA
[4d51835]	1821	typegen_type_specifier
	1822	\| declaration_qualifier_list typegen_type_specifier
	1823	{ $$ = $2->addQualifiers( $1 ); }
	1824	\| typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1825	{ $$ = $1->addQualifiers( $2 ); }
	1826	\| typegen_declaration_specifier storage_class type_qualifier_list
	1827	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1828	;
[b87a5ed]	1829
	1830	typegen_type_specifier: // CFA
[2871210]	1831	typegen_name
	1832	\| type_qualifier_list typegen_name
	1833	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	1834	\| typegen_type_specifier type_qualifier
	1835	{ $$ = $1->addQualifiers( $2 ); }
	1836	;
[b87a5ed]	1837
[2871210]	1838	typegen_name: // CFA
	1839	TYPEGENname '(' type_name_list ')'
	1840	{ $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
	1841	;
	1842
[b87a5ed]	1843	type_parameter_list: // CFA
[4d51835]	1844	type_parameter assignment_opt
	1845	\| type_parameter_list ',' type_parameter assignment_opt
	1846	{ $$ = $1->appendList( $3 ); }
	1847	;
[b87a5ed]	1848
	1849	type_parameter: // CFA
[2871210]	1850	type_class no_attr_identifier_or_type_name
	1851	{ typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); }
[4d51835]	1852	assertion_list_opt
	1853	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); }
	1854	\| type_specifier identifier_parameter_declarator
	1855	;
[b87a5ed]	1856
	1857	type_class: // CFA
[4040425]	1858	OTYPE
[5b639ee]	1859	{ $$ = DeclarationNode::Otype; }
[4d51835]	1860	\| DTYPE
	1861	{ $$ = DeclarationNode::Ftype; }
	1862	\| FTYPE
	1863	{ $$ = DeclarationNode::Dtype; }
	1864	;
[b87a5ed]	1865
	1866	assertion_list_opt: // CFA
[4d51835]	1867	// empty
	1868	{ $$ = 0; }
	1869	\| assertion_list_opt assertion
[4e06c1e]	1870	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1871	;
[b87a5ed]	1872
	1873	assertion: // CFA
[2871210]	1874	'\|' no_attr_identifier_or_type_name '(' type_name_list ')'
[4d51835]	1875	{
[4040425]	1876	typedefTable.openTrait( *$2 );
	1877	$$ = DeclarationNode::newTraitUse( $2, $4 );
[4d51835]	1878	}
[4040425]	1879	\| '\|' '{' push trait_declaration_list '}'
[4d51835]	1880	{ $$ = $4; }
[4040425]	1881	\| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list '}' '(' type_name_list ')'
[4d51835]	1882	{ $$ = 0; }
	1883	;
[b87a5ed]	1884
	1885	type_name_list: // CFA
[4d51835]	1886	type_name
[d1625f8]	1887	{ $$ = new ExpressionNode( build_typevalue( $1 ) ); }
[4d51835]	1888	\| assignment_expression
	1889	\| type_name_list ',' type_name
[1d4580a]	1890	{ $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( build_typevalue( $3 ) ) ) ); }
[4d51835]	1891	\| type_name_list ',' assignment_expression
[1d4580a]	1892	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	1893	;
[b87a5ed]	1894
	1895	type_declaring_list: // CFA
[4040425]	1896	OTYPE type_declarator
[4d51835]	1897	{ $$ = $2; }
[4040425]	1898	\| storage_class_list OTYPE type_declarator
[4d51835]	1899	{ $$ = $3->addQualifiers( $1 ); }
	1900	\| type_declaring_list ',' type_declarator
	1901	{ $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); }
	1902	;
[b87a5ed]	1903
	1904	type_declarator: // CFA
[4d51835]	1905	type_declarator_name assertion_list_opt
	1906	{ $$ = $1->addAssertions( $2 ); }
	1907	\| type_declarator_name assertion_list_opt '=' type_name
	1908	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	1909	;
[b87a5ed]	1910
	1911	type_declarator_name: // CFA
[2871210]	1912	no_attr_identifier_or_type_name
[4d51835]	1913	{
[de62360d]	1914	typedefTable.addToEnclosingScope( *$1, TypedefTable::TD );
[4d51835]	1915	$$ = DeclarationNode::newTypeDecl( $1, 0 );
	1916	}
[2871210]	1917	\| no_01_identifier_or_type_name '(' push type_parameter_list pop ')'
[4d51835]	1918	{
[de62360d]	1919	typedefTable.addToEnclosingScope( *$1, TypedefTable::TG );
[4d51835]	1920	$$ = DeclarationNode::newTypeDecl( $1, $4 );
	1921	}
	1922	;
[b87a5ed]	1923
[4040425]	1924	trait_specifier: // CFA
	1925	TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}'
[4d51835]	1926	{
[de62360d]	1927	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1928	$$ = DeclarationNode::newTrait( $2, $5, 0 );
[4d51835]	1929	}
[4040425]	1930	\| TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{'
[4d51835]	1931	{
[4040425]	1932	typedefTable.enterTrait( *$2 );
[4d51835]	1933	typedefTable.enterScope();
	1934	}
[4040425]	1935	trait_declaration_list '}'
[4d51835]	1936	{
[4040425]	1937	typedefTable.leaveTrait();
[de62360d]	1938	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1939	$$ = DeclarationNode::newTrait( $2, $5, $10 );
[4d51835]	1940	}
	1941	;
[b87a5ed]	1942
[4040425]	1943	trait_declaration_list: // CFA
	1944	trait_declaration
	1945	\| trait_declaration_list push trait_declaration
[4d51835]	1946	{ $$ = $1->appendList( $3 ); }
	1947	;
[b87a5ed]	1948
[4040425]	1949	trait_declaration: // CFA
	1950	new_trait_declaring_list pop ';'
	1951	\| trait_declaring_list pop ';'
[4d51835]	1952	;
[b87a5ed]	1953
[4040425]	1954	new_trait_declaring_list: // CFA
[4d51835]	1955	new_variable_specifier
	1956	{
	1957	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1958	$$ = $1;
	1959	}
	1960	\| new_function_specifier
	1961	{
	1962	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1963	$$ = $1;
	1964	}
[4040425]	1965	\| new_trait_declaring_list pop ',' push identifier_or_type_name
[4d51835]	1966	{
[de62360d]	1967	typedefTable.addToEnclosingScope2( *$5, TypedefTable::ID );
[4d51835]	1968	$$ = $1->appendList( $1->cloneType( $5 ) );
	1969	}
	1970	;
[b87a5ed]	1971
[4040425]	1972	trait_declaring_list: // CFA
[4d51835]	1973	type_specifier declarator
	1974	{
	1975	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1976	$$ = $2->addType( $1 );
	1977	}
[4040425]	1978	\| trait_declaring_list pop ',' push declarator
[4d51835]	1979	{
	1980	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1981	$$ = $1->appendList( $1->cloneBaseType( $5 ) );
	1982	}
	1983	;
[51b73452]	1984
[c11e31c]	1985	//*************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	1986
	1987	translation_unit:
[4d51835]	1988	// empty
	1989	{} // empty input file
	1990	\| external_definition_list
[926af74]	1991	{ parseTree = parseTree != nullptr ? parseTree->appendList( $1 ) : $1; }
[4d51835]	1992	;
[51b73452]	1993
	1994	external_definition_list:
[4d51835]	1995	external_definition
	1996	\| external_definition_list push external_definition
[926af74]	1997	{ $$ = $1 != nullptr ? $1->appendList( $3 ) : $3; }
[4d51835]	1998	;
[51b73452]	1999
	2000	external_definition_list_opt:
[4d51835]	2001	// empty
	2002	{ $$ = 0; }
	2003	\| external_definition_list
	2004	;
[51b73452]	2005
	2006	external_definition:
[4d51835]	2007	declaration
	2008	\| external_function_definition
	2009	\| asm_statement // GCC, global assembler statement
	2010	{}
	2011	\| EXTERN STRINGliteral
	2012	{
[3b8e52c]	2013	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[faddbd8]	2014	linkage = LinkageSpec::linkageCheck( $2 );
[4d51835]	2015	}
	2016	'{' external_definition_list_opt '}' // C++-style linkage specifier
	2017	{
	2018	linkage = linkageStack.top();
	2019	linkageStack.pop();
	2020	$$ = $5;
	2021	}
	2022	\| EXTENSION external_definition
[8e9cbb2]	2023	{ // mark all fields in list
[926af74]	2024	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	2025	iter->set_extension( true );
	2026	$$ = $2;
	2027	}
[4d51835]	2028	;
	2029
	2030	external_function_definition:
	2031	function_definition
[de62360d]	2032	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	2033	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	2034	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	2035	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	2036	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	2037	\| function_declarator compound_statement
	2038	{
	2039	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2040	typedefTable.leaveScope();
	2041	$$ = $1->addFunctionBody( $2 );
	2042	}
	2043	\| old_function_declarator push old_declaration_list_opt compound_statement
	2044	{
	2045	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2046	typedefTable.leaveScope();
	2047	$$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 );
	2048	}
	2049	;
[51b73452]	2050
	2051	function_definition:
[4d51835]	2052	new_function_declaration compound_statement // CFA
	2053	{
	2054	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2055	typedefTable.leaveScope();
	2056	$$ = $1->addFunctionBody( $2 );
	2057	}
	2058	\| declaration_specifier function_declarator compound_statement
	2059	{
	2060	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2061	typedefTable.leaveScope();
	2062	$$ = $2->addFunctionBody( $3 )->addType( $1 );
	2063	}
	2064	\| type_qualifier_list function_declarator compound_statement
	2065	{
	2066	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2067	typedefTable.leaveScope();
	2068	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2069	}
	2070	\| declaration_qualifier_list function_declarator compound_statement
	2071	{
	2072	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2073	typedefTable.leaveScope();
	2074	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2075	}
	2076	\| declaration_qualifier_list type_qualifier_list function_declarator compound_statement
	2077	{
	2078	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2079	typedefTable.leaveScope();
	2080	$$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 );
	2081	}
	2082
	2083	// Old-style K&R function definition, OBSOLESCENT (see 4)
	2084	\| declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement
	2085	{
	2086	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2087	typedefTable.leaveScope();
	2088	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 );
	2089	}
	2090	\| type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2091	{
	2092	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2093	typedefTable.leaveScope();
	2094	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2095	}
	2096
	2097	// Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4)
	2098	\| declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2099	{
	2100	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2101	typedefTable.leaveScope();
	2102	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2103	}
	2104	\| declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2105	{
	2106	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2107	typedefTable.leaveScope();
	2108	$$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 );
	2109	}
	2110	;
[51b73452]	2111
	2112	declarator:
[4d51835]	2113	variable_declarator
[c6b1105]	2114	\| variable_type_redeclarator
[4d51835]	2115	\| function_declarator
	2116	;
[51b73452]	2117
	2118	subrange:
[4d51835]	2119	constant_expression '~' constant_expression // CFA, integer subrange
[d1625f8]	2120	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	2121	;
[b87a5ed]	2122
	2123	asm_name_opt: // GCC
[4d51835]	2124	// empty
[c1c1112]	2125	\| ASM '(' string_literal_list ')' attribute_list_opt { delete $3; } // FIX ME: unimplemented
[4d51835]	2126	;
[b87a5ed]	2127
	2128	attribute_list_opt: // GCC
[4d51835]	2129	// empty
[1db21619]	2130	{ $$ = 0; }
[4d51835]	2131	\| attribute_list
	2132	;
[b87a5ed]	2133
	2134	attribute_list: // GCC
[4d51835]	2135	attribute
	2136	\| attribute_list attribute
[1db21619]	2137	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	2138	;
[b87a5ed]	2139
	2140	attribute: // GCC
[4d51835]	2141	ATTRIBUTE '(' '(' attribute_parameter_list ')' ')'
[1db21619]	2142	// { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
	2143	{ $$ = 0; }
[4d51835]	2144	;
[b87a5ed]	2145
	2146	attribute_parameter_list: // GCC
[4d51835]	2147	attrib
	2148	\| attribute_parameter_list ',' attrib
	2149	;
[b87a5ed]	2150
	2151	attrib: // GCC
[4d51835]	2152	// empty
	2153	\| any_word
[c1c1112]	2154	\| any_word '(' comma_expression_opt ')' { delete $3; } // FIX ME: unimplemented
[4d51835]	2155	;
[b87a5ed]	2156
	2157	any_word: // GCC
[c1c1112]	2158	identifier_or_type_name { delete $1; } // FIX ME: unimplemented
	2159	\| storage_class { delete $1; } // FIX ME: unimplemented
	2160	\| basic_type_name { delete $1; } // FIX ME: unimplemented
	2161	\| type_qualifier { delete $1; } // FIX ME: unimplemented
[4d51835]	2162	;
[51b73452]	2163
[c11e31c]	2164	// ============================================================================
[de62360d]	2165	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	2166	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	2167	// in:
[c11e31c]	2168	//
[b87a5ed]	2169	// int (*f())[10] { ... };
	2170	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	2171	//
[de62360d]	2172	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	2173	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	2174	// ============================================================================
	2175
	2176	// ----------------------------------------------------------------------------
[de62360d]	2177	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	2178	// to define a variable or function prototype, e.g.:
[c11e31c]	2179	//
[b87a5ed]	2180	// valid declaration invalid definition
	2181	// ----------------- ------------------
[4d51835]	2182	// int f; int f {}
	2183	// int f; int f {}
[b87a5ed]	2184	// int f[10]; int f[10] {}
[4d51835]	2185	// int (f)(int); int (f)(int) {}
[c11e31c]	2186	//
[de62360d]	2187	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	2188	// variable_declarator and function_declarator.
[c11e31c]	2189	// ----------------------------------------------------------------------------
	2190
[de62360d]	2191	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	2192	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	2193
	2194	variable_declarator:
[4d51835]	2195	paren_identifier attribute_list_opt
[1db21619]	2196	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2197	\| variable_ptr
	2198	\| variable_array attribute_list_opt
[1db21619]	2199	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2200	\| variable_function attribute_list_opt
[1db21619]	2201	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2202	;
[51b73452]	2203
	2204	paren_identifier:
[4d51835]	2205	identifier
	2206	{
[de62360d]	2207	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2208	$$ = DeclarationNode::newName( $1 );
	2209	}
	2210	\| '(' paren_identifier ')' // redundant parenthesis
	2211	{ $$ = $2; }
	2212	;
[51b73452]	2213
	2214	variable_ptr:
[dd51906]	2215	ptrref_operator variable_declarator
[4d51835]	2216	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2217	\| ptrref_operator type_qualifier_list variable_declarator
[4d51835]	2218	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2219	\| '(' variable_ptr ')'
	2220	{ $$ = $2; }
	2221	;
[51b73452]	2222
	2223	variable_array:
[4d51835]	2224	paren_identifier array_dimension
	2225	{ $$ = $1->addArray( $2 ); }
	2226	\| '(' variable_ptr ')' array_dimension
	2227	{ $$ = $2->addArray( $4 ); }
	2228	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
	2229	{ $$ = $2->addArray( $4 ); }
	2230	\| '(' variable_array ')' // redundant parenthesis
	2231	{ $$ = $2; }
	2232	;
[51b73452]	2233
	2234	variable_function:
[4d51835]	2235	'(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2236	{ $$ = $2->addParamList( $6 ); }
	2237	\| '(' variable_function ')' // redundant parenthesis
	2238	{ $$ = $2; }
	2239	;
[51b73452]	2240
[c6b1105]	2241	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	2242	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	2243	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	2244
	2245	function_declarator:
[4d51835]	2246	function_no_ptr attribute_list_opt
[1db21619]	2247	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2248	\| function_ptr
	2249	\| function_array attribute_list_opt
[1db21619]	2250	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2251	;
[51b73452]	2252
	2253	function_no_ptr:
[4d51835]	2254	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2255	{ $$ = $1->addParamList( $4 ); }
	2256	\| '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2257	{ $$ = $2->addParamList( $6 ); }
	2258	\| '(' function_no_ptr ')' // redundant parenthesis
	2259	{ $$ = $2; }
	2260	;
[51b73452]	2261
	2262	function_ptr:
[dd51906]	2263	ptrref_operator function_declarator
[4d51835]	2264	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2265	\| ptrref_operator type_qualifier_list function_declarator
[4d51835]	2266	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2267	\| '(' function_ptr ')'
	2268	{ $$ = $2; }
	2269	;
[51b73452]	2270
	2271	function_array:
[4d51835]	2272	'(' function_ptr ')' array_dimension
	2273	{ $$ = $2->addArray( $4 ); }
	2274	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	2275	{ $$ = $2->addArray( $4 ); }
	2276	\| '(' function_array ')' // redundant parenthesis
	2277	{ $$ = $2; }
	2278	;
[51b73452]	2279
[de62360d]	2280	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a typedef name
	2281	// (see function_declarator for additional comments). The pattern precludes returning arrays and functions versus
	2282	// pointers to arrays and functions.
[51b73452]	2283
	2284	old_function_declarator:
[4d51835]	2285	old_function_no_ptr
	2286	\| old_function_ptr
	2287	\| old_function_array
	2288	;
[51b73452]	2289
	2290	old_function_no_ptr:
[4d51835]	2291	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	2292	{ $$ = $1->addIdList( $3 ); }
	2293	\| '(' old_function_ptr ')' '(' identifier_list ')'
	2294	{ $$ = $2->addIdList( $5 ); }
	2295	\| '(' old_function_no_ptr ')' // redundant parenthesis
	2296	{ $$ = $2; }
	2297	;
[51b73452]	2298
	2299	old_function_ptr:
[dd51906]	2300	ptrref_operator old_function_declarator
[4d51835]	2301	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2302	\| ptrref_operator type_qualifier_list old_function_declarator
[4d51835]	2303	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2304	\| '(' old_function_ptr ')'
	2305	{ $$ = $2; }
	2306	;
[51b73452]	2307
	2308	old_function_array:
[4d51835]	2309	'(' old_function_ptr ')' array_dimension
	2310	{ $$ = $2->addArray( $4 ); }
	2311	\| '(' old_function_array ')' multi_array_dimension // redundant parenthesis
	2312	{ $$ = $2->addArray( $4 ); }
	2313	\| '(' old_function_array ')' // redundant parenthesis
	2314	{ $$ = $2; }
	2315	;
[51b73452]	2316
[2871210]	2317	// This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
[c11e31c]	2318	//
[b87a5ed]	2319	// typedef int foo;
	2320	// {
	2321	// int foo; // redefine typedef name in new scope
	2322	// }
[c11e31c]	2323	//
[de62360d]	2324	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2325	// and functions versus pointers to arrays and functions.
[51b73452]	2326
[c6b1105]	2327	variable_type_redeclarator:
[2871210]	2328	paren_type attribute_list_opt
[1db21619]	2329	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2330	\| type_ptr
	2331	\| type_array attribute_list_opt
[1db21619]	2332	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2333	\| type_function attribute_list_opt
[1db21619]	2334	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2335	;
[51b73452]	2336
[2871210]	2337	paren_type:
	2338	typedef
	2339	\| '(' paren_type ')'
[4d51835]	2340	{ $$ = $2; }
	2341	;
[51b73452]	2342
[2871210]	2343	type_ptr:
[c6b1105]	2344	ptrref_operator variable_type_redeclarator
[4d51835]	2345	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[c6b1105]	2346	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[4d51835]	2347	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2348	\| '(' type_ptr ')'
[4d51835]	2349	{ $$ = $2; }
	2350	;
[51b73452]	2351
[2871210]	2352	type_array:
	2353	paren_type array_dimension
[4d51835]	2354	{ $$ = $1->addArray( $2 ); }
[2871210]	2355	\| '(' type_ptr ')' array_dimension
[4d51835]	2356	{ $$ = $2->addArray( $4 ); }
[2871210]	2357	\| '(' type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2358	{ $$ = $2->addArray( $4 ); }
[2871210]	2359	\| '(' type_array ')' // redundant parenthesis
[4d51835]	2360	{ $$ = $2; }
	2361	;
[51b73452]	2362
[2871210]	2363	type_function:
	2364	paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2365	{ $$ = $1->addParamList( $4 ); }
[2871210]	2366	\| '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2367	{ $$ = $2->addParamList( $6 ); }
[2871210]	2368	\| '(' type_function ')' // redundant parenthesis
[4d51835]	2369	{ $$ = $2; }
	2370	;
[51b73452]	2371
[de62360d]	2372	// This pattern parses a declaration for a parameter variable or function prototype that is not redefining a typedef
	2373	// name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes declaring an
	2374	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	2375	// arrays and functions.
[51b73452]	2376
	2377	identifier_parameter_declarator:
[4d51835]	2378	paren_identifier attribute_list_opt
[1db21619]	2379	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2380	\| identifier_parameter_ptr
	2381	\| identifier_parameter_array attribute_list_opt
[1db21619]	2382	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2383	\| identifier_parameter_function attribute_list_opt
[1db21619]	2384	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2385	;
[51b73452]	2386
	2387	identifier_parameter_ptr:
[dd51906]	2388	ptrref_operator identifier_parameter_declarator
[4d51835]	2389	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2390	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[4d51835]	2391	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2392	\| '(' identifier_parameter_ptr ')'
	2393	{ $$ = $2; }
	2394	;
[51b73452]	2395
	2396	identifier_parameter_array:
[4d51835]	2397	paren_identifier array_parameter_dimension
	2398	{ $$ = $1->addArray( $2 ); }
	2399	\| '(' identifier_parameter_ptr ')' array_dimension
	2400	{ $$ = $2->addArray( $4 ); }
	2401	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	2402	{ $$ = $2->addArray( $4 ); }
	2403	\| '(' identifier_parameter_array ')' // redundant parenthesis
	2404	{ $$ = $2; }
	2405	;
[51b73452]	2406
	2407	identifier_parameter_function:
[4d51835]	2408	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2409	{ $$ = $1->addParamList( $4 ); }
	2410	\| '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2411	{ $$ = $2->addParamList( $6 ); }
	2412	\| '(' identifier_parameter_function ')' // redundant parenthesis
	2413	{ $$ = $2; }
	2414	;
[b87a5ed]	2415
[de62360d]	2416	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	2417	// e.g.:
[c11e31c]	2418	//
[b87a5ed]	2419	// typedef int foo;
	2420	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	2421	//
[de62360d]	2422	// and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern handles the
	2423	// special meaning of parenthesis around a typedef name:
[c11e31c]	2424	//
[b87a5ed]	2425	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	2426	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	2427	// not as redundant parentheses around the identifier."
[c11e31c]	2428	//
[c6b1105]	2429	// For example:
[c11e31c]	2430	//
[b87a5ed]	2431	// typedef float T;
[4d51835]	2432	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
[b87a5ed]	2433	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	2434	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	2435	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
[c11e31c]	2436	//
[de62360d]	2437	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	2438	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	2439	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	2440	// functions.
[51b73452]	2441
[2871210]	2442	type_parameter_redeclarator:
[4d51835]	2443	typedef attribute_list_opt
[1db21619]	2444	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2445	\| type_parameter_ptr
	2446	\| type_parameter_array attribute_list_opt
[1db21619]	2447	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2448	\| type_parameter_function attribute_list_opt
[1db21619]	2449	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2450	;
[51b73452]	2451
	2452	typedef:
[4d51835]	2453	TYPEDEFname
	2454	{
[de62360d]	2455	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2456	$$ = DeclarationNode::newName( $1 );
	2457	}
[2871210]	2458	\| TYPEGENname
	2459	{
	2460	typedefTable.setNextIdentifier( *$1 );
	2461	$$ = DeclarationNode::newName( $1 );
	2462	}
[4d51835]	2463	;
[51b73452]	2464
[2871210]	2465	type_parameter_ptr:
[dd51906]	2466	ptrref_operator type_parameter_redeclarator
[4d51835]	2467	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2468	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[4d51835]	2469	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2470	\| '(' type_parameter_ptr ')'
[4d51835]	2471	{ $$ = $2; }
	2472	;
[51b73452]	2473
[2871210]	2474	type_parameter_array:
[4d51835]	2475	typedef array_parameter_dimension
	2476	{ $$ = $1->addArray( $2 ); }
[2871210]	2477	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	2478	{ $$ = $2->addArray( $4 ); }
	2479	;
[51b73452]	2480
[2871210]	2481	type_parameter_function:
[4d51835]	2482	typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2483	{ $$ = $1->addParamList( $4 ); }
[2871210]	2484	\| '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2485	{ $$ = $2->addParamList( $6 ); }
	2486	;
[b87a5ed]	2487
[de62360d]	2488	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	2489	// which the type applies, e.g.:
[c11e31c]	2490	//
[b87a5ed]	2491	// sizeof( int );
	2492	// sizeof( int [10] );
[c11e31c]	2493	//
[de62360d]	2494	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2495	// and functions versus pointers to arrays and functions.
[51b73452]	2496
	2497	abstract_declarator:
[4d51835]	2498	abstract_ptr
	2499	\| abstract_array attribute_list_opt
[1db21619]	2500	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2501	\| abstract_function attribute_list_opt
[1db21619]	2502	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2503	;
[51b73452]	2504
	2505	abstract_ptr:
[dd51906]	2506	ptrref_operator
[4d51835]	2507	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2508	\| ptrref_operator type_qualifier_list
[4d51835]	2509	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2510	\| ptrref_operator abstract_declarator
[4d51835]	2511	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2512	\| ptrref_operator type_qualifier_list abstract_declarator
[4d51835]	2513	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2514	\| '(' abstract_ptr ')'
	2515	{ $$ = $2; }
	2516	;
[51b73452]	2517
	2518	abstract_array:
[4d51835]	2519	array_dimension
	2520	\| '(' abstract_ptr ')' array_dimension
	2521	{ $$ = $2->addArray( $4 ); }
	2522	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	2523	{ $$ = $2->addArray( $4 ); }
	2524	\| '(' abstract_array ')' // redundant parenthesis
	2525	{ $$ = $2; }
	2526	;
[51b73452]	2527
	2528	abstract_function:
[4d51835]	2529	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[2298f728]	2530	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
[4d51835]	2531	\| '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2532	{ $$ = $2->addParamList( $6 ); }
	2533	\| '(' abstract_function ')' // redundant parenthesis
	2534	{ $$ = $2; }
	2535	;
[51b73452]	2536
	2537	array_dimension:
[4d51835]	2538	// Only the first dimension can be empty.
[2871210]	2539	'[' ']'
[4d51835]	2540	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[2871210]	2541	\| '[' ']' multi_array_dimension
	2542	{ $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
[4d51835]	2543	\| multi_array_dimension
	2544	;
[51b73452]	2545
	2546	multi_array_dimension:
[4d51835]	2547	'[' push assignment_expression pop ']'
	2548	{ $$ = DeclarationNode::newArray( $3, 0, false ); }
	2549	\| '[' push '*' pop ']' // C99
	2550	{ $$ = DeclarationNode::newVarArray( 0 ); }
	2551	\| multi_array_dimension '[' push assignment_expression pop ']'
	2552	{ $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
	2553	\| multi_array_dimension '[' push '*' pop ']' // C99
	2554	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	2555	;
[51b73452]	2556
[c11e31c]	2557	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	2558	// identifier to which the type applies, e.g.:
	2559	//
[b87a5ed]	2560	// int f( int ); // abstract variable parameter; no parameter name specified
	2561	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2562	//
[de62360d]	2563	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2564	// and functions versus pointers to arrays and functions.
[51b73452]	2565
	2566	abstract_parameter_declarator:
[4d51835]	2567	abstract_parameter_ptr
	2568	\| abstract_parameter_array attribute_list_opt
[1db21619]	2569	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2570	\| abstract_parameter_function attribute_list_opt
[1db21619]	2571	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2572	;
[51b73452]	2573
	2574	abstract_parameter_ptr:
[dd51906]	2575	ptrref_operator
[4d51835]	2576	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2577	\| ptrref_operator type_qualifier_list
[4d51835]	2578	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2579	\| ptrref_operator abstract_parameter_declarator
[4d51835]	2580	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2581	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[4d51835]	2582	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2583	\| '(' abstract_parameter_ptr ')'
	2584	{ $$ = $2; }
	2585	;
[51b73452]	2586
	2587	abstract_parameter_array:
[4d51835]	2588	array_parameter_dimension
	2589	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	2590	{ $$ = $2->addArray( $4 ); }
	2591	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	2592	{ $$ = $2->addArray( $4 ); }
	2593	\| '(' abstract_parameter_array ')' // redundant parenthesis
	2594	{ $$ = $2; }
	2595	;
[51b73452]	2596
	2597	abstract_parameter_function:
[4d51835]	2598	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[2298f728]	2599	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
[4d51835]	2600	\| '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2601	{ $$ = $2->addParamList( $6 ); }
	2602	\| '(' abstract_parameter_function ')' // redundant parenthesis
	2603	{ $$ = $2; }
	2604	;
[51b73452]	2605
	2606	array_parameter_dimension:
[4d51835]	2607	// Only the first dimension can be empty or have qualifiers.
	2608	array_parameter_1st_dimension
	2609	\| array_parameter_1st_dimension multi_array_dimension
	2610	{ $$ = $1->addArray( $2 ); }
	2611	\| multi_array_dimension
	2612	;
[51b73452]	2613
[c11e31c]	2614	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	2615	//
[de62360d]	2616	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	2617	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	2618
	2619	array_parameter_1st_dimension:
[2871210]	2620	'[' ']'
[4d51835]	2621	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
	2622	// multi_array_dimension handles the '[' '*' ']' case
	2623	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	2624	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2625	\| '[' push type_qualifier_list pop ']'
	2626	{ $$ = DeclarationNode::newArray( 0, $3, false ); }
	2627	// multi_array_dimension handles the '[' assignment_expression ']' case
	2628	\| '[' push type_qualifier_list assignment_expression pop ']'
	2629	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2630	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	2631	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	2632	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	2633	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
	2634	;
[b87a5ed]	2635
[de62360d]	2636	// This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type applies,
	2637	// e.g.:
[c11e31c]	2638	//
[b87a5ed]	2639	// sizeof( int ); // abstract variable; no identifier name specified
[c11e31c]	2640	//
[de62360d]	2641	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2642	// and functions versus pointers to arrays and functions.
[51b73452]	2643
	2644	variable_abstract_declarator:
[4d51835]	2645	variable_abstract_ptr
	2646	\| variable_abstract_array attribute_list_opt
[1db21619]	2647	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2648	\| variable_abstract_function attribute_list_opt
[1db21619]	2649	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2650	;
[51b73452]	2651
	2652	variable_abstract_ptr:
[dd51906]	2653	ptrref_operator
[4d51835]	2654	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2655	\| ptrref_operator type_qualifier_list
[4d51835]	2656	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2657	\| ptrref_operator variable_abstract_declarator
[4d51835]	2658	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2659	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[4d51835]	2660	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2661	\| '(' variable_abstract_ptr ')'
	2662	{ $$ = $2; }
	2663	;
[51b73452]	2664
	2665	variable_abstract_array:
[4d51835]	2666	array_dimension
	2667	\| '(' variable_abstract_ptr ')' array_dimension
	2668	{ $$ = $2->addArray( $4 ); }
	2669	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	2670	{ $$ = $2->addArray( $4 ); }
	2671	\| '(' variable_abstract_array ')' // redundant parenthesis
	2672	{ $$ = $2; }
	2673	;
[51b73452]	2674
	2675	variable_abstract_function:
[4d51835]	2676	'(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2677	{ $$ = $2->addParamList( $6 ); }
	2678	\| '(' variable_abstract_function ')' // redundant parenthesis
	2679	{ $$ = $2; }
	2680	;
[b87a5ed]	2681
[de62360d]	2682	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	2683	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	2684
	2685	new_identifier_parameter_declarator_tuple: // CFA
[4d51835]	2686	new_identifier_parameter_declarator_no_tuple
	2687	\| new_abstract_tuple
	2688	\| type_qualifier_list new_abstract_tuple
	2689	{ $$ = $2->addQualifiers( $1 ); }
	2690	;
[b87a5ed]	2691
	2692	new_identifier_parameter_declarator_no_tuple: // CFA
[4d51835]	2693	new_identifier_parameter_ptr
	2694	\| new_identifier_parameter_array
	2695	;
[b87a5ed]	2696
	2697	new_identifier_parameter_ptr: // CFA
[dd51906]	2698	ptrref_operator type_specifier
[4d51835]	2699	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2700	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2701	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2702	\| ptrref_operator new_abstract_function
[4d51835]	2703	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2704	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2705	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2706	\| ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2707	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2708	\| type_qualifier_list ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2709	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2710	;
[b87a5ed]	2711
	2712	new_identifier_parameter_array: // CFA
[de62360d]	2713	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	2714	// shift/reduce conflict with new-style empty (void) function return type.
[2871210]	2715	'[' ']' type_specifier
	2716	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2717	\| new_array_parameter_1st_dimension type_specifier
	2718	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2719	\| '[' ']' multi_array_dimension type_specifier
	2720	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2721	\| new_array_parameter_1st_dimension multi_array_dimension type_specifier
	2722	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2723	\| multi_array_dimension type_specifier
	2724	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2725	\| '[' ']' new_identifier_parameter_ptr
	2726	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2727	\| new_array_parameter_1st_dimension new_identifier_parameter_ptr
	2728	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2729	\| '[' ']' multi_array_dimension new_identifier_parameter_ptr
	2730	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2731	\| new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr
	2732	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2733	\| multi_array_dimension new_identifier_parameter_ptr
	2734	{ $$ = $2->addNewArray( $1 ); }
	2735	;
[51b73452]	2736
	2737	new_array_parameter_1st_dimension:
[4d51835]	2738	'[' push type_qualifier_list '*' pop ']' // remaining C99
	2739	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2740	\| '[' push type_qualifier_list assignment_expression pop ']'
	2741	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2742	\| '[' push declaration_qualifier_list assignment_expression pop ']'
	2743	// declaration_qualifier_list must be used because of shift/reduce conflict with
	2744	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	2745	// appear in this context.
	2746	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	2747	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	2748	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
	2749	;
[b87a5ed]	2750
[de62360d]	2751	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	2752	// identifier to which the type applies, e.g.:
[c11e31c]	2753	//
[b87a5ed]	2754	// [int] f( int ); // abstract variable parameter; no parameter name specified
	2755	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2756	//
	2757	// These rules need LR(3):
	2758	//
[2871210]	2759	// new_abstract_tuple identifier_or_type_name
	2760	// '[' new_parameter_list ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[c11e31c]	2761	//
	2762	// since a function return type can be syntactically identical to a tuple type:
	2763	//
[b87a5ed]	2764	// [int, int] t;
	2765	// [int, int] f( int );
[c11e31c]	2766	//
[2871210]	2767	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[de62360d]	2768	// new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	2769	// lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and tuple declarations are
	2770	// duplicated when appearing with new_function_specifier.
[b87a5ed]	2771
	2772	new_abstract_declarator_tuple: // CFA
[4d51835]	2773	new_abstract_tuple
	2774	\| type_qualifier_list new_abstract_tuple
	2775	{ $$ = $2->addQualifiers( $1 ); }
	2776	\| new_abstract_declarator_no_tuple
	2777	;
[b87a5ed]	2778
	2779	new_abstract_declarator_no_tuple: // CFA
[4d51835]	2780	new_abstract_ptr
	2781	\| new_abstract_array
	2782	;
[b87a5ed]	2783
	2784	new_abstract_ptr: // CFA
[dd51906]	2785	ptrref_operator type_specifier
[4d51835]	2786	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2787	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2788	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2789	\| ptrref_operator new_abstract_function
[4d51835]	2790	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2791	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2792	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2793	\| ptrref_operator new_abstract_declarator_tuple
[4d51835]	2794	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2795	\| type_qualifier_list ptrref_operator new_abstract_declarator_tuple
[4d51835]	2796	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2797	;
[b87a5ed]	2798
	2799	new_abstract_array: // CFA
[de62360d]	2800	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	2801	// empty (void) function return type.
[2871210]	2802	'[' ']' type_specifier
[2298f728]	2803	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	2804	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	2805	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	2806	\| multi_array_dimension type_specifier
	2807	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2808	\| '[' ']' new_abstract_ptr
[2298f728]	2809	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	2810	\| '[' ']' multi_array_dimension new_abstract_ptr
[2298f728]	2811	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	2812	\| multi_array_dimension new_abstract_ptr
	2813	{ $$ = $2->addNewArray( $1 ); }
	2814	;
[b87a5ed]	2815
	2816	new_abstract_tuple: // CFA
[4d51835]	2817	'[' push new_abstract_parameter_list pop ']'
	2818	{ $$ = DeclarationNode::newTuple( $3 ); }
	2819	;
[b87a5ed]	2820
	2821	new_abstract_function: // CFA
[2871210]	2822	'[' ']' '(' new_parameter_type_list_opt ')'
[2298f728]	2823	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
[4d51835]	2824	\| new_abstract_tuple '(' push new_parameter_type_list_opt pop ')'
[2298f728]	2825	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	2826	\| new_function_return '(' push new_parameter_type_list_opt pop ')'
[2298f728]	2827	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	2828	;
[b87a5ed]	2829
[de62360d]	2830	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	2831	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	2832	//
[de62360d]	2833	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	2834	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	2835	//
	2836	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	2837	// prototype-format parameter type declarators) is an obsolescent feature."
	2838	//
[de62360d]	2839	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	2840	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	2841
[c11e31c]	2842	//*********************** MISCELLANEOUS ******************************
[51b73452]	2843
[b87a5ed]	2844	comma_opt: // redundant comma
[4d51835]	2845	// empty
	2846	\| ','
	2847	;
[51b73452]	2848
	2849	assignment_opt:
[4d51835]	2850	// empty
	2851	{ $$ = 0; }
	2852	\| '=' assignment_expression
	2853	{ $$ = $2; }
	2854	;
[51b73452]	2855
	2856	%%
[c11e31c]	2857	// ----end of grammar----
[51b73452]	2858
[0da3e2c]	2859	extern char *yytext;
	2860
[5f2f2d7]	2861	void yyerror( const char * ) {
[2298f728]	2862	cout << "Error ";
[b87a5ed]	2863	if ( yyfilename ) {
[2298f728]	2864	cout << "in file " << yyfilename << " ";
[5f2f2d7]	2865	} // if
[2298f728]	2866	cout << "at line " << yylineno << " reading token \"" << (yytext[0] == '\0' ? "EOF" : yytext) << "\"" << endl;
[51b73452]	2867	}
	2868
[c11e31c]	2869	// Local Variables: //
[b87a5ed]	2870	// mode: c++ //
[de62360d]	2871	// tab-width: 4 //
[c11e31c]	2872	// compile-command: "make install" //
	2873	// End: //

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