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parser.yy @ a2a8d2a6

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Last change on this file since a2a8d2a6 was 2acf5fc, checked in by Peter A. Buhr <pabuhr@…>, 8 years ago

Merge branch 'master' of plg2:software/cfa/cfa-cc

Conflicts:

src/Parser/parser.cc
src/Parser/parser.yy

Property mode set to 100644

File size: 103.8 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
[2acf5fc]	12	// Last Modified On : Mon Aug 22 14:30:56 2016
	13	// Update Count : 1944
[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.
[51b7345]	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
[51b7345]	45
	46	#undef __GNUC_MINOR__
	47
	48	#include <cstdio>
	49	#include <stack>
	50	#include "lex.h"
[984dce6]	51	#include "parser.h"
[51b7345]	52	#include "ParseNode.h"
[984dce6]	53	#include "TypedefTable.h"
[1db21619]	54	#include "TypeData.h"
[51b7345]	55	#include "LinkageSpec.h"
	56
[ab57786]	57	union DeclQualifiers {
	58	unsigned int value; // assume 32-bits
	59	struct {
	60	bool Extern : 1;
	61	bool Static : 1;
	62	bool Auto : 1;
	63	bool Register : 1;
	64	bool Inline : 1;
	65	bool Fortran : 1;
	66	bool Noreturn : 1;
	67	bool Threadlocal : 1;
	68	bool Extension : 1;
	69	bool Lvalue : 1;
	70	bool Const : 1;
	71	bool Volatile : 1;
	72	bool Restrict : 1;
	73	bool Atomic : 1;
	74	} qual;
	75	}; // DeclQualifiers
	76	DeclQualifiers declQualifiers = { 0 };
	77
	78	union DeclType {
	79	unsigned int value; // assume 32-bits
	80	struct {
	81	bool Char : 1;
	82	bool Bool : 1;
	83	bool Short : 1;
	84	bool Int : 1;
	85	bool Float : 1;
	86	bool Double : 1;
	87	bool Long : 1;
	88	bool Signed : 1;
	89	bool Unsigned : 1;
	90	bool Void : 1;
	91	bool Complex : 1;
	92	bool Imaginary : 1;
	93	bool Valist : 1;
	94	} type;
	95	}; // DeclType
	96	DeclType declTypes = { 0 };
	97
[cbaee0d]	98	extern DeclarationNode * parseTree;
[8b7ee09]	99	extern LinkageSpec::Spec linkage;
[0da3e2c]	100	extern TypedefTable typedefTable;
	101
[8b7ee09]	102	std::stack< LinkageSpec::Spec > linkageStack;
[7bf7fb9]	103
[ab57786]	104	void appendStr( std::string to, std::string from ) {
[7bf7fb9]	105	// "abc" "def" "ghi" => "abcdefghi", remove new text from quotes and insert before last quote in old string.
[ab57786]	106	to->insert( to->length() - 1, from->substr( 1, from->length() - 2 ) );
[7bf7fb9]	107	} // appendStr
[51b7345]	108	%}
	109
[c11e31c]	110	//*********************** TERMINAL TOKENS ******************************
[51b7345]	111
[c11e31c]	112	// keywords
[51b7345]	113	%token TYPEDEF
	114	%token AUTO EXTERN REGISTER STATIC
[b87a5ed]	115	%token INLINE // C99
	116	%token FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
[51b7345]	117	%token CONST VOLATILE
[b87a5ed]	118	%token RESTRICT // C99
	119	%token FORALL LVALUE // CFA
[51b7345]	120	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[90c3b1c]	121	%token VALIST // GCC
[b87a5ed]	122	%token BOOL COMPLEX IMAGINARY // C99
	123	%token TYPEOF LABEL // GCC
[51b7345]	124	%token ENUM STRUCT UNION
[e7aed49]	125	%token OTYPE FTYPE DTYPE TRAIT // CFA
[5721a6d]	126	%token SIZEOF OFFSETOF
[b87a5ed]	127	%token ATTRIBUTE EXTENSION // GCC
[51b7345]	128	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[02e5ab6]	129	%token CHOOSE DISABLE ENABLE FALLTHRU TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT // CFA
[b87a5ed]	130	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[c11e31c]	131	%token ALIGNAS ALIGNOF ATOMIC GENERIC NORETURN STATICASSERT THREADLOCAL // C11
[51b7345]	132
[c11e31c]	133	// names and constants: lexer differentiates between identifier and typedef names
[b87a5ed]	134	%token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname
	135	%token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname
	136	%token<tok> INTEGERconstant FLOATINGconstant CHARACTERconstant STRINGliteral
	137	%token<tok> ZERO ONE // CFA
[51b7345]	138
[c11e31c]	139	// multi-character operators
[b87a5ed]	140	%token ARROW // ->
	141	%token ICR DECR // ++ --
	142	%token LS RS // << >>
	143	%token LE GE EQ NE // <= >= == !=
	144	%token ANDAND OROR // && \|\|
	145	%token ELLIPSIS // ...
	146
	147	%token MULTassign DIVassign MODassign // *= /= %=/
	148	%token PLUSassign MINUSassign // += -=
	149	%token LSassign RSassign // <<= >>=
	150	%token ANDassign ERassign ORassign // &= ^= \|=
[51b7345]	151
[e7aed49]	152	%token ATassign // @=
[097e2b0]	153
[c11e31c]	154	// Types declaration
[51b7345]	155	%union
	156	{
[b87a5ed]	157	Token tok;
	158	ParseNode *pn;
	159	ExpressionNode *en;
	160	DeclarationNode *decl;
[68cd1ce]	161	DeclarationNode::Aggregate aggKey;
[b87a5ed]	162	DeclarationNode::TypeClass tclass;
	163	StatementNode *sn;
[d1625f8]	164	ConstantExpr *constant;
[2f22cc4]	165	ForCtl *fctl;
[7f5566b]	166	LabelNode *label;
[b87a5ed]	167	InitializerNode *in;
[d9e2280]	168	OperKinds op;
[ab57786]	169	std::string *str;
[7f5566b]	170	bool flag;
[51b7345]	171	}
	172
[097e2b0]	173	%type<tok> identifier no_01_identifier no_attr_identifier zero_one
[2871210]	174	%type<tok> identifier_or_type_name no_attr_identifier_or_type_name no_01_identifier_or_type_name
[ab57786]	175	%type<constant> string_literal
	176	%type<str> string_literal_list
[51b7345]	177
[c11e31c]	178	// expressions
[d1625f8]	179	%type<en> constant
[b87a5ed]	180	%type<en> tuple tuple_expression_list
[9706554]	181	%type<op> ptrref_operator unary_operator assignment_operator
[b87a5ed]	182	%type<en> primary_expression postfix_expression unary_expression
	183	%type<en> cast_expression multiplicative_expression additive_expression shift_expression
	184	%type<en> relational_expression equality_expression AND_expression exclusive_OR_expression
	185	%type<en> inclusive_OR_expression logical_AND_expression logical_OR_expression conditional_expression
	186	%type<en> constant_expression assignment_expression assignment_expression_opt
	187	%type<en> comma_expression comma_expression_opt
[2f22cc4]	188	%type<en> argument_expression_list argument_expression assignment_opt
	189	%type<fctl> for_control_expression
[51b7345]	190	%type<en> subrange
[7f5566b]	191	%type<en> asm_operands_opt asm_operands_list asm_operand
	192	%type<label> label_list
[d1625f8]	193	%type<en> asm_clobbers_list_opt
[7f5566b]	194	%type<flag> asm_volatile_opt
[51b7345]	195
[c11e31c]	196	// statements
[b87a5ed]	197	%type<sn> labeled_statement compound_statement expression_statement selection_statement
[097e2b0]	198	%type<sn> iteration_statement jump_statement exception_statement asm_statement
[b87a5ed]	199	%type<sn> fall_through_opt fall_through
	200	%type<sn> statement statement_list
	201	%type<sn> block_item_list block_item
[51b7345]	202	%type<sn> case_clause
[8688ce1]	203	%type<en> case_value
	204	%type<sn> case_value_list case_label case_label_list
[b87a5ed]	205	%type<sn> switch_clause_list_opt switch_clause_list choose_clause_list_opt choose_clause_list
[1d4580a]	206	%type<sn> handler_list handler_clause finally_clause
[51b7345]	207
[c11e31c]	208	// declarations
[51b7345]	209	%type<decl> abstract_array abstract_declarator abstract_function abstract_parameter_array
	210	%type<decl> abstract_parameter_declaration abstract_parameter_declarator abstract_parameter_function
	211	%type<decl> abstract_parameter_ptr abstract_ptr
	212
	213	%type<aggKey> aggregate_key
	214	%type<decl> aggregate_name
	215
	216	%type<decl> array_dimension array_parameter_1st_dimension array_parameter_dimension multi_array_dimension
	217
	218	%type<decl> assertion assertion_list_opt
	219
	220	%type<en> bit_subrange_size_opt bit_subrange_size
	221
	222	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type_name indirect_type_name
	223
[4040425]	224	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b7345]	225
	226	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
	227	%type<decl> declaration_specifier declarator declaring_list
	228
	229	%type<decl> elaborated_type_name
	230
	231	%type<decl> enumerator_list enum_name
	232	%type<en> enumerator_value_opt
	233
	234	%type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt
	235
	236	%type<decl> field_declaration field_declaration_list field_declarator field_declaring_list
	237	%type<en> field field_list
	238
[4d51835]	239	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b7345]	240
	241	%type<decl> identifier_parameter_array identifier_parameter_declarator identifier_parameter_function
	242	%type<decl> identifier_parameter_ptr identifier_list
	243
	244	%type<decl> new_abstract_array new_abstract_declarator_no_tuple new_abstract_declarator_tuple
	245	%type<decl> new_abstract_function new_abstract_parameter_declaration new_abstract_parameter_list
	246	%type<decl> new_abstract_ptr new_abstract_tuple
	247
	248	%type<decl> new_array_parameter_1st_dimension
	249
[4040425]	250	%type<decl> new_trait_declaring_list new_declaration new_field_declaring_list
[51b7345]	251	%type<decl> new_function_declaration new_function_return new_function_specifier
	252
	253	%type<decl> new_identifier_parameter_array new_identifier_parameter_declarator_no_tuple
	254	%type<decl> new_identifier_parameter_declarator_tuple new_identifier_parameter_ptr
	255
	256	%type<decl> new_parameter_declaration new_parameter_list new_parameter_type_list new_parameter_type_list_opt
	257
	258	%type<decl> new_typedef_declaration new_variable_declaration new_variable_specifier
	259
	260	%type<decl> old_declaration old_declaration_list old_declaration_list_opt old_function_array
	261	%type<decl> old_function_declarator old_function_no_ptr old_function_ptr
	262
	263	%type<decl> parameter_declaration parameter_list parameter_type_list
	264	%type<decl> parameter_type_list_opt
	265
[2871210]	266	%type<decl> paren_identifier paren_type
[51b7345]	267
[0da3e2c]	268	%type<decl> storage_class storage_class_list
[51b7345]	269
	270	%type<decl> sue_declaration_specifier sue_type_specifier
	271
	272	%type<tclass> type_class
	273	%type<decl> type_declarator type_declarator_name type_declaring_list
	274
[2871210]	275	%type<decl> typedef type_array typedef_declaration typedef_declaration_specifier typedef_expression
	276	%type<decl> type_function type_parameter_array type_parameter_function type_parameter_ptr
[c6b1105]	277	%type<decl> type_parameter_redeclarator type_ptr variable_type_redeclarator typedef_type_specifier
[2871210]	278	%type<decl> typegen_declaration_specifier typegen_type_specifier typegen_name
[51b7345]	279
	280	%type<decl> type_name type_name_no_function
	281	%type<decl> type_parameter type_parameter_list
	282
	283	%type<en> type_name_list
	284
	285	%type<decl> type_qualifier type_qualifier_name type_qualifier_list type_qualifier_list_opt type_specifier
	286
	287	%type<decl> variable_abstract_array variable_abstract_declarator variable_abstract_function
	288	%type<decl> variable_abstract_ptr variable_array variable_declarator variable_function variable_ptr
	289
[1db21619]	290	%type<decl> attribute_list_opt attribute_list attribute
	291
[c11e31c]	292	// initializers
[51b7345]	293	%type<in> initializer initializer_list initializer_opt
	294
[c11e31c]	295	// designators
[51b7345]	296	%type<en> designator designator_list designation
	297
	298
[b87a5ed]	299	// Handle single shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string
	300	// is ambiguous:
	301	// .---------. matches IF '(' comma_expression ')' statement
[c11e31c]	302	// if ( C ) S1 else S2
[b87a5ed]	303	// `-----------------' matches IF '(' comma_expression ')' statement ELSE statement */
[51b7345]	304
[c11e31c]	305	%nonassoc THEN // rule precedence for IF '(' comma_expression ')' statement
	306	%nonassoc ELSE // token precedence for start of else clause in IF statement
[51b7345]	307
[b87a5ed]	308	%start translation_unit // parse-tree root
[51b7345]	309
	310	%%
[c11e31c]	311	//*********************** Namespace Management ******************************
	312
[de62360d]	313	// The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal symbols
	314	// "identifier" and "TYPEDEFname" that are lexically identical. While it is possible to write a purely context-free
	315	// grammar, such a grammar would obscure the relationship between syntactic and semantic constructs. Hence, this
	316	// grammar uses the ANSI style.
[c11e31c]	317	//
[de62360d]	318	// Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, those
	319	// introduced through "forall" qualifiers), and by introducing "type generators" -- parametrized types. This latter
	320	// type name creates a third class of identifiers that must be distinguished by the scanner.
[c11e31c]	321	//
[de62360d]	322	// Since the scanner cannot distinguish among the different classes of identifiers without some context information, it
	323	// accesses a data structure (the TypedefTable) to allow classification of an identifier that it has just read.
	324	// Semantic actions during the parser update this data structure when the class of identifiers change.
[c11e31c]	325	//
[de62360d]	326	// Because the Cforall language is block-scoped, there is the possibility that an identifier can change its class in a
	327	// local scope; it must revert to its original class at the end of the block. Since type names can be local to a
	328	// particular declaration, each declaration is itself a scope. This requires distinguishing between type names that are
	329	// local to the current declaration scope and those that persist past the end of the declaration (i.e., names defined in
	330	// "typedef" or "type" declarations).
[c11e31c]	331	//
[de62360d]	332	// The non-terminals "push" and "pop" derive the empty string; their only use is to denote the opening and closing of
	333	// scopes. Every push must have a matching pop, although it is regrettable the matching pairs do not always occur
	334	// within the same rule. These non-terminals may appear in more contexts than strictly necessary from a semantic point
	335	// of view. Unfortunately, these extra rules are necessary to prevent parsing conflicts -- the parser may not have
	336	// enough context and look-ahead information to decide whether a new scope is necessary, so the effect of these extra
	337	// rules is to open a new scope unconditionally. As the grammar evolves, it may be neccesary to add or move around
	338	// "push" and "pop" nonterminals to resolve conflicts of this sort.
[51b7345]	339
	340	push:
[ab57786]	341	{ typedefTable.enterScope(); }
[4d51835]	342	;
[51b7345]	343
	344	pop:
[ab57786]	345	{ typedefTable.leaveScope(); }
[4d51835]	346	;
[51b7345]	347
[c11e31c]	348	//*********************** CONSTANTS ******************************
[51b7345]	349
	350	constant:
[de62360d]	351	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[ab57786]	352	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); }
	353	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	354	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); }
[4d51835]	355	;
[51b7345]	356
	357	identifier:
[4d51835]	358	IDENTIFIER
	359	\| ATTR_IDENTIFIER // CFA
	360	\| zero_one // CFA
	361	;
[51b7345]	362
	363	no_01_identifier:
[4d51835]	364	IDENTIFIER
	365	\| ATTR_IDENTIFIER // CFA
	366	;
[51b7345]	367
	368	no_attr_identifier:
[4d51835]	369	IDENTIFIER
[bd85400]	370	\| zero_one // CFA
[4d51835]	371	;
[51b7345]	372
[b87a5ed]	373	zero_one: // CFA
[4d51835]	374	ZERO
	375	\| ONE
	376	;
[51b7345]	377
[ab57786]	378	string_literal:
	379	string_literal_list { $$ = build_constantStr( *$1 ); }
	380	;
	381
[b87a5ed]	382	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	383	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	384	\| string_literal_list STRINGliteral
	385	{
[ab57786]	386	appendStr( $1, $2 ); // append 2nd juxtaposed string to 1st
[7bf7fb9]	387	delete $2; // allocated by lexer
[ab57786]	388	$$ = $1; // conversion from tok to str
[7bf7fb9]	389	}
[4d51835]	390	;
[51b7345]	391
[c11e31c]	392	//*********************** EXPRESSIONS ******************************
[51b7345]	393
	394	primary_expression:
[4d51835]	395	IDENTIFIER // typedef name cannot be used as a variable name
[d1625f8]	396	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	397	\| zero_one
[d1625f8]	398	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	399	\| '(' comma_expression ')'
	400	{ $$ = $2; }
	401	\| '(' compound_statement ')' // GCC, lambda expression
[d1625f8]	402	{ $$ = new ExpressionNode( build_valexpr( $2 ) ); }
[4d51835]	403	;
[51b7345]	404
	405	postfix_expression:
[4d51835]	406	primary_expression
	407	\| postfix_expression '[' push assignment_expression pop ']'
[c6b1105]	408	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	409	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	410	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	411	// equivalent to the old x[i,j].
[d1625f8]	412	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $4 ) ); }
[4d51835]	413	\| postfix_expression '(' argument_expression_list ')'
[d1625f8]	414	{ $$ = new ExpressionNode( build_func( $1, $3 ) ); }
[ab57786]	415	// ambiguity with .0 so space required after field-selection, e.g.
[bd85400]	416	// struct S { int 0, 1; } s; s. 0 = 0; s. 1 = 1;
[4d51835]	417	\| postfix_expression '.' no_attr_identifier
[d1625f8]	418	{ $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); }
[4d51835]	419	\| postfix_expression '.' '[' push field_list pop ']' // CFA, tuple field selector
	420	\| postfix_expression ARROW no_attr_identifier
[d1625f8]	421	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_varref( $3 ) ) ); }
[4d51835]	422	\| postfix_expression ARROW '[' push field_list pop ']' // CFA, tuple field selector
	423	\| postfix_expression ICR
[d1625f8]	424	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); }
[4d51835]	425	\| postfix_expression DECR
[d1625f8]	426	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); }
[4d51835]	427	\| '(' type_name_no_function ')' '{' initializer_list comma_opt '}' // C99
[d1625f8]	428	{ $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); }
[097e2b0]	429	\| postfix_expression '{' argument_expression_list '}' // CFA
	430	{
[9706554]	431	Token fn;
	432	fn.str = new std::string( "?{}" ); // location undefined
[1d4580a]	433	$$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) );
[097e2b0]	434	}
[4d51835]	435	;
[51b7345]	436
	437	argument_expression_list:
[4d51835]	438	argument_expression
	439	\| argument_expression_list ',' argument_expression
[1d4580a]	440	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	441	;
[51b7345]	442
	443	argument_expression:
[4d51835]	444	// empty
	445	{ $$ = 0; } // use default argument
	446	\| assignment_expression
	447	;
[b87a5ed]	448
	449	field_list: // CFA, tuple field selector
[4d51835]	450	field
[1d4580a]	451	\| field_list ',' field { $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	452	;
[b87a5ed]	453
	454	field: // CFA, tuple field selector
[4d51835]	455	no_attr_identifier
[d1625f8]	456	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[ab57786]	457	// ambiguity with .0 so space required after field-selection, e.g.
[bd85400]	458	// struct S { int 0, 1; } s; s. 0 = 0; s. 1 = 1;
[4d51835]	459	\| no_attr_identifier '.' field
[d1625f8]	460	{ $$ = new ExpressionNode( build_fieldSel( $3, build_varref( $1 ) ) ); }
[4d51835]	461	\| no_attr_identifier '.' '[' push field_list pop ']'
[d1625f8]	462	{ $$ = new ExpressionNode( build_fieldSel( $5, build_varref( $1 ) ) ); }
[4d51835]	463	\| no_attr_identifier ARROW field
[d1625f8]	464	{ $$ = new ExpressionNode( build_pfieldSel( $3, build_varref( $1 ) ) ); }
[4d51835]	465	\| no_attr_identifier ARROW '[' push field_list pop ']'
[d1625f8]	466	{ $$ = new ExpressionNode( build_pfieldSel( $5, build_varref( $1 ) ) ); }
[4d51835]	467	;
[51b7345]	468
	469	unary_expression:
[4d51835]	470	postfix_expression
[c6b1105]	471	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	472	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	473	\| constant
	474	{ $$ = $1; }
[ab57786]	475	\| string_literal
[d1625f8]	476	{ $$ = new ExpressionNode( $1 ); }
[4d51835]	477	\| EXTENSION cast_expression // GCC
[e04ef3a]	478	{ $$ = $2->set_extension( true ); }
[c6b1105]	479	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	480	// { * X; } // dereference X
	481	// { * int X; } // CFA declaration of pointer to int
[51e076e]	482	\| ptrref_operator cast_expression // CFA
[9706554]	483	{
	484	switch ( $1 ) {
[d9e2280]	485	case OperKinds::AddressOf:
[d1625f8]	486	$$ = new ExpressionNode( build_addressOf( $2 ) );
[9706554]	487	break;
[d9e2280]	488	case OperKinds::PointTo:
[d1625f8]	489	$$ = new ExpressionNode( build_unary_val( $1, $2 ) );
[9706554]	490	break;
	491	default:
	492	assert( false );
	493	}
	494	}
[4d51835]	495	\| unary_operator cast_expression
[d1625f8]	496	{ $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); }
[dd51906]	497	\| ICR unary_expression
[d1625f8]	498	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); }
[dd51906]	499	\| DECR unary_expression
[d1625f8]	500	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); }
[4d51835]	501	\| SIZEOF unary_expression
[d1625f8]	502	{ $$ = new ExpressionNode( build_sizeOfexpr( $2 ) ); }
[4d51835]	503	\| SIZEOF '(' type_name_no_function ')'
[d1625f8]	504	{ $$ = new ExpressionNode( build_sizeOftype( $3 ) ); }
	505	\| ALIGNOF unary_expression // GCC, variable alignment
	506	{ $$ = new ExpressionNode( build_alignOfexpr( $2 ) ); }
	507	\| ALIGNOF '(' type_name_no_function ')' // GCC, type alignment
	508	{ $$ = new ExpressionNode( build_alignOftype( $3 ) ); }
[5721a6d]	509	\| OFFSETOF '(' type_name_no_function ',' no_attr_identifier ')'
[d1625f8]	510	{ $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); }
[4d51835]	511	\| ATTR_IDENTIFIER
[d1625f8]	512	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), nullptr ) ); }
[4d51835]	513	\| ATTR_IDENTIFIER '(' argument_expression ')'
[d1625f8]	514	{ $$ = new ExpressionNode( build_attrexpr( build_varref( $1 ), $3 ) ); }
	515	\| ATTR_IDENTIFIER '(' type_name ')'
	516	{ $$ = new ExpressionNode( build_attrtype( build_varref( $1 ), $3 ) ); }
[c6b1105]	517	// \| ANDAND IDENTIFIER // GCC, address of label
[d1625f8]	518	// { $$ = new ExpressionNode( new OperatorNode( OperKinds::LabelAddress ), new ExpressionNode( build_varref( $2, true ) ); }
[4d51835]	519	;
[51b7345]	520
[dd51906]	521	ptrref_operator:
[d9e2280]	522	'*' { $$ = OperKinds::PointTo; }
	523	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	524	// GCC, address of label must be handled by semantic check for ref,ref,label
[d9e2280]	525	// \| ANDAND { $$ = OperKinds::And; }
[dd51906]	526	;
	527
[51b7345]	528	unary_operator:
[d9e2280]	529	'+' { $$ = OperKinds::UnPlus; }
	530	\| '-' { $$ = OperKinds::UnMinus; }
	531	\| '!' { $$ = OperKinds::Neg; }
	532	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	533	;
[51b7345]	534
	535	cast_expression:
[4d51835]	536	unary_expression
	537	\| '(' type_name_no_function ')' cast_expression
[d1625f8]	538	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	539	\| '(' type_name_no_function ')' tuple
[d1625f8]	540	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	541	;
[51b7345]	542
	543	multiplicative_expression:
[4d51835]	544	cast_expression
	545	\| multiplicative_expression '*' cast_expression
[d1625f8]	546	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); }
[4d51835]	547	\| multiplicative_expression '/' cast_expression
[d1625f8]	548	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); }
[4d51835]	549	\| multiplicative_expression '%' cast_expression
[d1625f8]	550	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); }
[4d51835]	551	;
[51b7345]	552
	553	additive_expression:
[4d51835]	554	multiplicative_expression
	555	\| additive_expression '+' multiplicative_expression
[d1625f8]	556	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); }
[4d51835]	557	\| additive_expression '-' multiplicative_expression
[d1625f8]	558	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); }
[4d51835]	559	;
[51b7345]	560
	561	shift_expression:
[4d51835]	562	additive_expression
	563	\| shift_expression LS additive_expression
[d1625f8]	564	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); }
[4d51835]	565	\| shift_expression RS additive_expression
[d1625f8]	566	{ $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); }
[4d51835]	567	;
[51b7345]	568
	569	relational_expression:
[4d51835]	570	shift_expression
	571	\| relational_expression '<' shift_expression
[d1625f8]	572	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); }
[4d51835]	573	\| relational_expression '>' shift_expression
[d1625f8]	574	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); }
[4d51835]	575	\| relational_expression LE shift_expression
[d1625f8]	576	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	577	\| relational_expression GE shift_expression
[d1625f8]	578	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	579	;
[51b7345]	580
	581	equality_expression:
[4d51835]	582	relational_expression
	583	\| equality_expression EQ relational_expression
[d1625f8]	584	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); }
[4d51835]	585	\| equality_expression NE relational_expression
[d1625f8]	586	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); }
[4d51835]	587	;
[51b7345]	588
	589	AND_expression:
[4d51835]	590	equality_expression
	591	\| AND_expression '&' equality_expression
[d1625f8]	592	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	593	;
[51b7345]	594
	595	exclusive_OR_expression:
[4d51835]	596	AND_expression
	597	\| exclusive_OR_expression '^' AND_expression
[d1625f8]	598	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); }
[4d51835]	599	;
[51b7345]	600
	601	inclusive_OR_expression:
[4d51835]	602	exclusive_OR_expression
	603	\| inclusive_OR_expression '\|' exclusive_OR_expression
[d1625f8]	604	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	605	;
[51b7345]	606
	607	logical_AND_expression:
[4d51835]	608	inclusive_OR_expression
	609	\| logical_AND_expression ANDAND inclusive_OR_expression
[d1625f8]	610	{ $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); }
[4d51835]	611	;
[51b7345]	612
	613	logical_OR_expression:
[4d51835]	614	logical_AND_expression
	615	\| logical_OR_expression OROR logical_AND_expression
[d1625f8]	616	{ $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); }
[4d51835]	617	;
[51b7345]	618
	619	conditional_expression:
[4d51835]	620	logical_OR_expression
	621	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[d1625f8]	622	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[d9e2280]	623	// FIX ME: this hack computes $1 twice
[4d51835]	624	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[d1625f8]	625	{ $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); }
[4d51835]	626	\| logical_OR_expression '?' comma_expression ':' tuple // CFA, tuple expression
[d1625f8]	627	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[4d51835]	628	;
[51b7345]	629
	630	constant_expression:
[4d51835]	631	conditional_expression
	632	;
[51b7345]	633
	634	assignment_expression:
[4d51835]	635	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	636	conditional_expression
	637	\| unary_expression assignment_operator assignment_expression
[d1625f8]	638	{ $$ = new ExpressionNode( build_binary_ptr( $2, $1, $3 ) ); }
[4d51835]	639	\| tuple assignment_opt // CFA, tuple expression
[d1625f8]	640	{ $$ = ( $2 == 0 ) ? $1 : new ExpressionNode( build_binary_ptr( OperKinds::Assign, $1, $2 ) ); }
[4d51835]	641	;
[51b7345]	642
	643	assignment_expression_opt:
[4d51835]	644	// empty
[d1625f8]	645	{ $$ = nullptr; }
[4d51835]	646	\| assignment_expression
	647	;
[b87a5ed]	648
[9706554]	649	assignment_operator:
[d9e2280]	650	'=' { $$ = OperKinds::Assign; }
	651	\| MULTassign { $$ = OperKinds::MulAssn; }
	652	\| DIVassign { $$ = OperKinds::DivAssn; }
	653	\| MODassign { $$ = OperKinds::ModAssn; }
	654	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	655	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	656	\| LSassign { $$ = OperKinds::LSAssn; }
	657	\| RSassign { $$ = OperKinds::RSAssn; }
	658	\| ANDassign { $$ = OperKinds::AndAssn; }
	659	\| ERassign { $$ = OperKinds::ERAssn; }
	660	\| ORassign { $$ = OperKinds::OrAssn; }
[9706554]	661	;
	662
[b87a5ed]	663	tuple: // CFA, tuple
[de62360d]	664	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
	665	// comma_expression in new_identifier_parameter_array and new_abstract_array
[2871210]	666	'[' ']'
[d1625f8]	667	{ $$ = new ExpressionNode( build_tuple() ); }
[4d51835]	668	\| '[' push assignment_expression pop ']'
[d1625f8]	669	{ $$ = new ExpressionNode( build_tuple( $3 ) ); }
[4d51835]	670	\| '[' push ',' tuple_expression_list pop ']'
[1d4580a]	671	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $4 ) ) ); }
[4d51835]	672	\| '[' push assignment_expression ',' tuple_expression_list pop ']'
[1d4580a]	673	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $5 ) ) ); }
[4d51835]	674	;
[51b7345]	675
	676	tuple_expression_list:
[4d51835]	677	assignment_expression_opt
	678	\| tuple_expression_list ',' assignment_expression_opt
[1d4580a]	679	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	680	;
[51b7345]	681
	682	comma_expression:
[4d51835]	683	assignment_expression
[9706554]	684	\| comma_expression ',' assignment_expression
[d1625f8]	685	{ $$ = new ExpressionNode( build_comma( $1, $3 ) ); }
[4d51835]	686	;
[51b7345]	687
	688	comma_expression_opt:
[4d51835]	689	// empty
	690	{ $$ = 0; }
	691	\| comma_expression
	692	;
[51b7345]	693
[c11e31c]	694	//************************* STATEMENTS *****************************
[51b7345]	695
	696	statement:
[4d51835]	697	labeled_statement
	698	\| compound_statement
	699	\| expression_statement { $$ = $1; }
	700	\| selection_statement
	701	\| iteration_statement
	702	\| jump_statement
	703	\| exception_statement
	704	\| asm_statement
[097e2b0]	705	\| '^' postfix_expression '{' argument_expression_list '}' ';' // CFA
	706	{
[d9e2280]	707	Token fn;
	708	fn.str = new std::string( "^?{}" ); // location undefined
[e82aa9df]	709	$$ = new StatementNode( build_expr( new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) ) ) );
[097e2b0]	710	}
[4d51835]	711	;
[51b7345]	712
	713	labeled_statement:
[c6b1105]	714	// labels cannot be identifiers 0 or 1
	715	IDENTIFIER ':' attribute_list_opt statement
[1db21619]	716	{
	717	$$ = $4->add_label( $1 );
	718	}
[4d51835]	719	;
[51b7345]	720
	721	compound_statement:
[4d51835]	722	'{' '}'
[e82aa9df]	723	{ $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); }
[4d51835]	724	\| '{'
[de62360d]	725	// Two scopes are necessary because the block itself has a scope, but every declaration within the block also
	726	// requires its own scope
[4d51835]	727	push push
[51b1202]	728	local_label_declaration_opt // GCC, local labels
[4d51835]	729	block_item_list pop '}' // C99, intermix declarations and statements
[e82aa9df]	730	{ $$ = new StatementNode( build_compound( $5 ) ); }
[4d51835]	731	;
[b87a5ed]	732
	733	block_item_list: // C99
[4d51835]	734	block_item
	735	\| block_item_list push block_item
[1d4580a]	736	{ if ( $1 != 0 ) { $1->set_last( $3 ); $$ = $1; } }
[4d51835]	737	;
[51b7345]	738
	739	block_item:
[4d51835]	740	declaration // CFA, new & old style declarations
[e82aa9df]	741	{ $$ = new StatementNode( $1 ); }
[4d51835]	742	\| EXTENSION declaration // GCC
[8e9cbb2]	743	{ // mark all fields in list
[926af74]	744	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	745	iter->set_extension( true );
[e82aa9df]	746	$$ = new StatementNode( $2 );
[8e9cbb2]	747	}
[4d51835]	748	\| function_definition
[e82aa9df]	749	{ $$ = new StatementNode( $1 ); }
[4d51835]	750	\| statement pop
	751	;
[51b7345]	752
	753	statement_list:
[4d51835]	754	statement
	755	\| statement_list statement
[1d4580a]	756	{ if ( $1 != 0 ) { $1->set_last( $2 ); $$ = $1; } }
[4d51835]	757	;
[51b7345]	758
	759	expression_statement:
[4d51835]	760	comma_expression_opt ';'
[e82aa9df]	761	{ $$ = new StatementNode( build_expr( $1 ) ); }
[4d51835]	762	;
[51b7345]	763
	764	selection_statement:
[4d51835]	765	IF '(' comma_expression ')' statement %prec THEN
	766	// explicitly deal with the shift/reduce conflict on if/else
[e82aa9df]	767	{ $$ = new StatementNode( build_if( $3, $5, nullptr ) ); }
[4d51835]	768	\| IF '(' comma_expression ')' statement ELSE statement
[e82aa9df]	769	{ $$ = new StatementNode( build_if( $3, $5, $7 ) ); }
[4d51835]	770	\| SWITCH '(' comma_expression ')' case_clause // CFA
[e82aa9df]	771	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	772	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
[4e06c1e]	773	{
[e82aa9df]	774	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
[4e06c1e]	775	// The semantics of the declaration list is changed to include associated initialization, which is performed
	776	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	777	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	778	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	779	// statement.
[e82aa9df]	780	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	781	}
[4d51835]	782	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[e82aa9df]	783	{ $$ = new StatementNode( build_switch( $3, $5 ) ); }
[4d51835]	784	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt choose_clause_list_opt '}' // CFA
[4e06c1e]	785	{
[e82aa9df]	786	StatementNode *sw = new StatementNode( build_switch( $3, $8 ) );
	787	$$ = $7 != 0 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	788	}
[4d51835]	789	;
[b87a5ed]	790
[de62360d]	791	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	792	// clause allows a list of values and subranges.
[b87a5ed]	793
	794	case_value: // CFA
[4d51835]	795	constant_expression { $$ = $1; }
	796	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[d1625f8]	797	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	798	\| subrange // CFA, subrange
	799	;
[b87a5ed]	800
	801	case_value_list: // CFA
[e82aa9df]	802	case_value { $$ = new StatementNode( build_case( $1 ) ); }
[064e3ff]	803	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[e82aa9df]	804	\| case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); }
[4d51835]	805	;
[b87a5ed]	806
	807	case_label: // CFA
[8688ce1]	808	CASE case_value_list ':' { $$ = $2; }
[e82aa9df]	809	\| DEFAULT ':' { $$ = new StatementNode( build_default() ); }
[4d51835]	810	// A semantic check is required to ensure only one default clause per switch/choose statement.
	811	;
[b87a5ed]	812
	813	case_label_list: // CFA
[4d51835]	814	case_label
[1d4580a]	815	\| case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); }
[4d51835]	816	;
[b87a5ed]	817
	818	case_clause: // CFA
[e82aa9df]	819	case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	820	;
[b87a5ed]	821
	822	switch_clause_list_opt: // CFA
[4d51835]	823	// empty
	824	{ $$ = 0; }
	825	\| switch_clause_list
	826	;
[b87a5ed]	827
	828	switch_clause_list: // CFA
[4d51835]	829	case_label_list statement_list
[e82aa9df]	830	{ $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	831	\| switch_clause_list case_label_list statement_list
[e82aa9df]	832	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); }
[4d51835]	833	;
[b87a5ed]	834
	835	choose_clause_list_opt: // CFA
[4d51835]	836	// empty
	837	{ $$ = 0; }
	838	\| choose_clause_list
	839	;
[b87a5ed]	840
	841	choose_clause_list: // CFA
[4d51835]	842	case_label_list fall_through
[de62360d]	843	{ $$ = $1->append_last_case( $2 ); }
[4d51835]	844	\| case_label_list statement_list fall_through_opt
[e82aa9df]	845	{ $$ = $1->append_last_case( new StatementNode( build_compound( (StatementNode *)$2->set_last( $3 ) ) ) ); }
[4d51835]	846	\| choose_clause_list case_label_list fall_through
[1d4580a]	847	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( $3 ))); }
[4d51835]	848	\| choose_clause_list case_label_list statement_list fall_through_opt
[e82aa9df]	849	{ $$ = (StatementNode )( $1->set_last( $2->append_last_case( new StatementNode( build_compound( (StatementNode )$3->set_last( $4 ) ) ) ) ) ); }
[4d51835]	850	;
[b87a5ed]	851
	852	fall_through_opt: // CFA
[4d51835]	853	// empty
[ab57786]	854	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); } // insert implicit break
[4d51835]	855	\| fall_through
	856	;
[b87a5ed]	857
	858	fall_through: // CFA
[4e06c1e]	859	FALLTHRU
	860	{ $$ = 0; }
	861	\| FALLTHRU ';'
	862	{ $$ = 0; }
[4d51835]	863	;
[51b7345]	864
	865	iteration_statement:
[4d51835]	866	WHILE '(' comma_expression ')' statement
[e82aa9df]	867	{ $$ = new StatementNode( build_while( $3, $5 ) ); }
[4d51835]	868	\| DO statement WHILE '(' comma_expression ')' ';'
[e82aa9df]	869	{ $$ = new StatementNode( build_while( $5, $2 ) ); }
[4d51835]	870	\| FOR '(' push for_control_expression ')' statement
[e82aa9df]	871	{ $$ = new StatementNode( build_for( $4, $6 ) ); }
[4d51835]	872	;
[51b7345]	873
	874	for_control_expression:
[4d51835]	875	comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt
[2f22cc4]	876	{ $$ = new ForCtl( $1, $4, $6 ); }
[4d51835]	877	\| declaration comma_expression_opt ';' comma_expression_opt // C99
[2f22cc4]	878	{ $$ = new ForCtl( $1, $2, $4 ); }
[d1625f8]	879	;
[51b7345]	880
	881	jump_statement:
[c6b1105]	882	GOTO IDENTIFIER ';'
[ab57786]	883	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); }
[4d51835]	884	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	885	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	886	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	887	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[4d51835]	888	\| CONTINUE ';'
[de62360d]	889	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	890	{ $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); }
[4e06c1e]	891	\| CONTINUE IDENTIFIER ';' // CFA, multi-level continue
[de62360d]	892	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	893	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	894	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); }
[4d51835]	895	\| BREAK ';'
[de62360d]	896	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	897	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); }
[4e06c1e]	898	\| BREAK IDENTIFIER ';' // CFA, multi-level exit
[de62360d]	899	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	900	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	901	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); }
[4d51835]	902	\| RETURN comma_expression_opt ';'
[e82aa9df]	903	{ $$ = new StatementNode( build_return( $2 ) ); }
[8cc5cb0]	904	\| THROW assignment_expression_opt ';' // handles rethrow
[e82aa9df]	905	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	906	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[e82aa9df]	907	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	908	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[e82aa9df]	909	{ $$ = new StatementNode( build_throw( $2 ) ); }
[4d51835]	910	;
[51b7345]	911
	912	exception_statement:
[4d51835]	913	TRY compound_statement handler_list
[e82aa9df]	914	{ $$ = new StatementNode( build_try( $2, $3, 0 ) ); }
[4d51835]	915	\| TRY compound_statement finally_clause
[e82aa9df]	916	{ $$ = new StatementNode( build_try( $2, 0, $3 ) ); }
[4d51835]	917	\| TRY compound_statement handler_list finally_clause
[e82aa9df]	918	{ $$ = new StatementNode( build_try( $2, $3, $4 ) ); }
[4d51835]	919	;
[51b7345]	920
	921	handler_list:
[4d51835]	922	handler_clause
[de62360d]	923	// ISO/IEC 9899:1999 Section 15.3(6 ) If present, a "..." handler shall be the last handler for its try block.
[4d51835]	924	\| CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	925	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[4d51835]	926	\| handler_clause CATCH '(' ELLIPSIS ')' compound_statement
[e82aa9df]	927	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[02e5ab6]	928	\| CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	929	{ $$ = new StatementNode( build_catch( 0, $5, true ) ); }
[02e5ab6]	930	\| handler_clause CATCHRESUME '(' ELLIPSIS ')' compound_statement
[e82aa9df]	931	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( 0, $6, true ) ) ); }
[4d51835]	932	;
[51b7345]	933
	934	handler_clause:
[4d51835]	935	CATCH '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	936	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[4d51835]	937	\| handler_clause CATCH '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	938	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[02e5ab6]	939	\| CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	940	{ $$ = new StatementNode( build_catch( $5, $8 ) ); }
[02e5ab6]	941	\| handler_clause CATCHRESUME '(' push push exception_declaration pop ')' compound_statement pop
[e82aa9df]	942	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $6, $9 ) ) ); }
[4d51835]	943	;
[51b7345]	944
	945	finally_clause:
[4d51835]	946	FINALLY compound_statement
	947	{
[e82aa9df]	948	$$ = new StatementNode( build_finally( $2 ) );
[4d51835]	949	}
	950	;
[51b7345]	951
	952	exception_declaration:
[4d51835]	953	// A semantic check is required to ensure type_specifier does not create a new type, e.g.:
	954	//
	955	// catch ( struct { int i; } x ) ...
	956	//
	957	// This new type cannot catch any thrown type because of name equivalence among types.
	958	type_specifier
	959	\| type_specifier declarator
	960	{
	961	typedefTable.addToEnclosingScope( TypedefTable::ID );
	962	$$ = $2->addType( $1 );
	963	}
	964	\| type_specifier variable_abstract_declarator
	965	{ $$ = $2->addType( $1 ); }
	966	\| new_abstract_declarator_tuple no_attr_identifier // CFA
	967	{
	968	typedefTable.addToEnclosingScope( TypedefTable::ID );
	969	$$ = $1->addName( $2 );
	970	}
	971	\| new_abstract_declarator_tuple // CFA
	972	;
[51b7345]	973
	974	asm_statement:
[ab57786]	975	ASM asm_volatile_opt '(' string_literal ')' ';'
[e82aa9df]	976	{ $$ = new StatementNode( build_asmstmt( $2, $4, 0 ) ); }
[ab57786]	977	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[e82aa9df]	978	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6 ) ); }
[ab57786]	979	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[e82aa9df]	980	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8 ) ); }
[ab57786]	981	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[e82aa9df]	982	{ $$ = new StatementNode( build_asmstmt( $2, $4, $6, $8, $10 ) ); }
[ab57786]	983	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[e82aa9df]	984	{ $$ = new StatementNode( build_asmstmt( $2, $5, 0, $8, $10, $12 ) ); }
[7f5566b]	985	;
	986
	987	asm_volatile_opt: // GCC
	988	// empty
	989	{ $$ = false; }
	990	\| VOLATILE
	991	{ $$ = true; }
[4d51835]	992	;
[b87a5ed]	993
	994	asm_operands_opt: // GCC
[4d51835]	995	// empty
[7f5566b]	996	{ $$ = 0; } // use default argument
[4d51835]	997	\| asm_operands_list
	998	;
[b87a5ed]	999
	1000	asm_operands_list: // GCC
[4d51835]	1001	asm_operand
	1002	\| asm_operands_list ',' asm_operand
[1d4580a]	1003	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	1004	;
[b87a5ed]	1005
	1006	asm_operand: // GCC
[ab57786]	1007	string_literal '(' constant_expression ')'
[e82aa9df]	1008	{ $$ = new ExpressionNode( build_asmexpr( 0, $1, $3 ) ); }
[ab57786]	1009	\| '[' constant_expression ']' string_literal '(' constant_expression ')'
[e82aa9df]	1010	{ $$ = new ExpressionNode( build_asmexpr( $2, $4, $6 ) ); }
[7f5566b]	1011	;
	1012
[4e06c1e]	1013	asm_clobbers_list_opt: // GCC
[7f5566b]	1014	// empty
	1015	{ $$ = 0; } // use default argument
[ab57786]	1016	\| string_literal
[d1625f8]	1017	{ $$ = new ExpressionNode( $1 ); }
[ab57786]	1018	\| asm_clobbers_list_opt ',' string_literal
[e82aa9df]	1019	{ $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); }
[4d51835]	1020	;
[b87a5ed]	1021
[7f5566b]	1022	label_list:
	1023	no_attr_identifier
[ab57786]	1024	{
	1025	$$ = new LabelNode(); $$->labels.push_back( *$1 );
	1026	delete $1; // allocated by lexer
	1027	}
[7f5566b]	1028	\| label_list ',' no_attr_identifier
[ab57786]	1029	{
	1030	$$ = $1; $1->labels.push_back( *$3 );
	1031	delete $3; // allocated by lexer
	1032	}
[4d51835]	1033	;
[51b7345]	1034
[c11e31c]	1035	//***************************** DECLARATIONS *******************************
[51b7345]	1036
[b87a5ed]	1037	declaration_list_opt: // used at beginning of switch statement
[4d51835]	1038	pop
	1039	{ $$ = 0; }
	1040	\| declaration_list
	1041	;
[51b7345]	1042
	1043	declaration_list:
[4d51835]	1044	declaration
	1045	\| declaration_list push declaration
	1046	{ $$ = $1->appendList( $3 ); }
	1047	;
[51b7345]	1048
[b87a5ed]	1049	old_declaration_list_opt: // used to declare parameter types in K&R style functions
[4d51835]	1050	pop
	1051	{ $$ = 0; }
	1052	\| old_declaration_list
	1053	;
[51b7345]	1054
	1055	old_declaration_list:
[4d51835]	1056	old_declaration
	1057	\| old_declaration_list push old_declaration
	1058	{ $$ = $1->appendList( $3 ); }
	1059	;
[b87a5ed]	1060
[51b1202]	1061	local_label_declaration_opt: // GCC, local label
[4d51835]	1062	// empty
[51b1202]	1063	\| local_label_declaration_list
[4d51835]	1064	;
[b87a5ed]	1065
[51b1202]	1066	local_label_declaration_list: // GCC, local label
	1067	LABEL local_label_list ';'
	1068	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1069	;
[b87a5ed]	1070
[51b1202]	1071	local_label_list: // GCC, local label
[7f5566b]	1072	no_attr_identifier_or_type_name {}
[51b1202]	1073	\| local_label_list ',' no_attr_identifier_or_type_name {}
[4d51835]	1074	;
[b87a5ed]	1075
	1076	declaration: // CFA, new & old style declarations
[4d51835]	1077	new_declaration
	1078	\| old_declaration
	1079	;
[b87a5ed]	1080
[de62360d]	1081	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1082	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1083	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1084	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1085	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1086	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1087	//
[b87a5ed]	1088	// CFA C
	1089	// [10] int x; int x[10]; // array of 10 integers
	1090	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1091
	1092	new_declaration: // CFA
[4d51835]	1093	new_variable_declaration pop ';'
	1094	\| new_typedef_declaration pop ';'
	1095	\| new_function_declaration pop ';'
	1096	\| type_declaring_list pop ';'
[4040425]	1097	\| trait_specifier pop ';'
[4d51835]	1098	;
[b87a5ed]	1099
	1100	new_variable_declaration: // CFA
[4d51835]	1101	new_variable_specifier initializer_opt
	1102	{
	1103	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1104	$$ = $1->addInitializer( $2 );
[4d51835]	1105	}
	1106	\| declaration_qualifier_list new_variable_specifier initializer_opt
[de62360d]	1107	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	1108	// them as a type_qualifier cannot appear in that context.
[4d51835]	1109	{
	1110	typedefTable.addToEnclosingScope( TypedefTable::ID );
[3cfe27f]	1111	$$ = $2->addQualifiers( $1 )->addInitializer( $3 );;
[4d51835]	1112	}
[2871210]	1113	\| new_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[4d51835]	1114	{
	1115	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
[3cfe27f]	1116	$$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) );
[4d51835]	1117	}
	1118	;
[b87a5ed]	1119
	1120	new_variable_specifier: // CFA
[de62360d]	1121	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1122	// storage-class
[2871210]	1123	new_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[4d51835]	1124	{
	1125	typedefTable.setNextIdentifier( *$2 );
	1126	$$ = $1->addName( $2 );
	1127	}
[2871210]	1128	\| new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1129	{
	1130	typedefTable.setNextIdentifier( *$2 );
	1131	$$ = $1->addName( $2 );
	1132	}
[2871210]	1133	\| type_qualifier_list new_abstract_tuple identifier_or_type_name asm_name_opt
[4d51835]	1134	{
	1135	typedefTable.setNextIdentifier( *$3 );
	1136	$$ = $2->addQualifiers( $1 )->addName( $3 );
	1137	}
	1138	;
[b87a5ed]	1139
	1140	new_function_declaration: // CFA
[4d51835]	1141	new_function_specifier
	1142	{
	1143	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1144	$$ = $1;
	1145	}
	1146	\| type_qualifier_list new_function_specifier
	1147	{
	1148	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1149	$$ = $2->addQualifiers( $1 );
	1150	}
	1151	\| declaration_qualifier_list new_function_specifier
	1152	{
	1153	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1154	$$ = $2->addQualifiers( $1 );
	1155	}
	1156	\| declaration_qualifier_list type_qualifier_list new_function_specifier
	1157	{
	1158	typedefTable.addToEnclosingScope( TypedefTable::ID );
	1159	$$ = $3->addQualifiers( $1 )->addQualifiers( $2 );
	1160	}
[2871210]	1161	\| new_function_declaration pop ',' push identifier_or_type_name
[4d51835]	1162	{
	1163	typedefTable.addToEnclosingScope( *$5, TypedefTable::ID );
	1164	$$ = $1->appendList( $1->cloneType( $5 ) );
	1165	}
	1166	;
[b87a5ed]	1167
	1168	new_function_specifier: // CFA
[2871210]	1169	'[' ']' identifier_or_type_name '(' push new_parameter_type_list_opt pop ')' // S/R conflict
[4d51835]	1170	{
[2871210]	1171	$$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
[4d51835]	1172	}
[2871210]	1173	// '[' ']' identifier '(' push new_parameter_type_list_opt pop ')'
	1174	// {
	1175	// typedefTable.setNextIdentifier( *$5 );
	1176	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1177	// }
	1178	// \| '[' ']' TYPEDEFname '(' push new_parameter_type_list_opt pop ')'
	1179	// {
	1180	// typedefTable.setNextIdentifier( *$5 );
	1181	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1182	// }
	1183	// \| '[' ']' typegen_name
	1184	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	1185	//
[2871210]	1186	// '[' ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[4d51835]	1187	// '[' ']' type_specifier
	1188	//
[2871210]	1189	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	1190	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
	1191	\| new_abstract_tuple identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[de62360d]	1192	// To obtain LR(1 ), this rule must be factored out from function return type (see new_abstract_declarator).
[4d51835]	1193	{
	1194	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1195	}
[2871210]	1196	\| new_function_return identifier_or_type_name '(' push new_parameter_type_list_opt pop ')'
[4d51835]	1197	{
	1198	$$ = DeclarationNode::newFunction( $2, $1, $5, 0, true );
	1199	}
	1200	;
[b87a5ed]	1201
	1202	new_function_return: // CFA
[4d51835]	1203	'[' push new_parameter_list pop ']'
	1204	{ $$ = DeclarationNode::newTuple( $3 ); }
	1205	\| '[' push new_parameter_list pop ',' push new_abstract_parameter_list pop ']'
[de62360d]	1206	// To obtain LR(1 ), the last new_abstract_parameter_list is added into this flattened rule to lookahead to the
	1207	// ']'.
[4d51835]	1208	{ $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
	1209	;
[b87a5ed]	1210
	1211	new_typedef_declaration: // CFA
[4d51835]	1212	TYPEDEF new_variable_specifier
	1213	{
[de62360d]	1214	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1215	$$ = $2->addTypedef();
	1216	}
	1217	\| TYPEDEF new_function_specifier
	1218	{
[de62360d]	1219	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1220	$$ = $2->addTypedef();
	1221	}
	1222	\| new_typedef_declaration pop ',' push no_attr_identifier
	1223	{
[de62360d]	1224	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1225	$$ = $1->appendList( $1->cloneType( $5 ) );
	1226	}
	1227	;
[b87a5ed]	1228
[de62360d]	1229	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	1230	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b7345]	1231
	1232	typedef_declaration:
[4d51835]	1233	TYPEDEF type_specifier declarator
	1234	{
[de62360d]	1235	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1236	$$ = $3->addType( $2 )->addTypedef();
	1237	}
	1238	\| typedef_declaration pop ',' push declarator
	1239	{
[de62360d]	1240	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1241	$$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
	1242	}
[de62360d]	1243	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[4d51835]	1244	{
[de62360d]	1245	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1246	$$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
	1247	}
	1248	\| type_specifier TYPEDEF declarator
	1249	{
[de62360d]	1250	typedefTable.addToEnclosingScope( TypedefTable::TD );
[4d51835]	1251	$$ = $3->addType( $1 )->addTypedef();
	1252	}
	1253	\| type_specifier TYPEDEF type_qualifier_list declarator
	1254	{
[de62360d]	1255	typedefTable.addToEnclosingScope( TypedefTable::TD );
	1256	$$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
[4d51835]	1257	}
	1258	;
[b87a5ed]	1259
[721f17a]	1260	typedef_expression:
	1261	// GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[4d51835]	1262	TYPEDEF no_attr_identifier '=' assignment_expression
	1263	{
[de62360d]	1264	typedefTable.addToEnclosingScope( *$2, TypedefTable::TD );
[4d51835]	1265	$$ = DeclarationNode::newName( 0 ); // XXX
	1266	}
	1267	\| typedef_expression pop ',' push no_attr_identifier '=' assignment_expression
	1268	{
[de62360d]	1269	typedefTable.addToEnclosingScope( *$5, TypedefTable::TD );
[4d51835]	1270	$$ = DeclarationNode::newName( 0 ); // XXX
	1271	}
	1272	;
[51b7345]	1273
	1274	old_declaration:
[4d51835]	1275	declaring_list pop ';'
	1276	\| typedef_declaration pop ';'
	1277	\| typedef_expression pop ';' // GCC, naming expression type
	1278	\| sue_declaration_specifier pop ';'
	1279	;
[51b7345]	1280
	1281	declaring_list:
[de62360d]	1282	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1283	// storage-class
[4d51835]	1284	declaration_specifier declarator asm_name_opt initializer_opt
	1285	{
	1286	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1287	$$ = ( $2->addType( $1 ))->addInitializer( $4 );
[4d51835]	1288	}
	1289	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
	1290	{
	1291	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1292	$$ = $1->appendList( $1->cloneBaseType( $4->addInitializer( $6 ) ) );
[4d51835]	1293	}
	1294	;
[b87a5ed]	1295
	1296	declaration_specifier: // type specifier + storage class
[4d51835]	1297	basic_declaration_specifier
	1298	\| sue_declaration_specifier
	1299	\| typedef_declaration_specifier
	1300	\| typegen_declaration_specifier
	1301	;
[b87a5ed]	1302
	1303	type_specifier: // declaration specifier - storage class
[4d51835]	1304	basic_type_specifier
	1305	\| sue_type_specifier
	1306	\| typedef_type_specifier
	1307	\| typegen_type_specifier
	1308	;
[b87a5ed]	1309
	1310	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	1311	// empty
	1312	{ $$ = 0; }
	1313	\| type_qualifier_list
	1314	;
[51b7345]	1315
	1316	type_qualifier_list:
[de62360d]	1317	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	1318	//
[de62360d]	1319	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	1320	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	1321	// appeared only once.
[4d51835]	1322	type_qualifier
	1323	\| type_qualifier_list type_qualifier
	1324	{ $$ = $1->addQualifiers( $2 ); }
	1325	;
[51b7345]	1326
	1327	type_qualifier:
[4d51835]	1328	type_qualifier_name
	1329	\| attribute
[1db21619]	1330	//{ $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
[4d51835]	1331	;
[51b7345]	1332
	1333	type_qualifier_name:
[4d51835]	1334	CONST
	1335	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Const ); }
	1336	\| RESTRICT
	1337	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Restrict ); }
	1338	\| VOLATILE
	1339	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Volatile ); }
	1340	\| LVALUE // CFA
	1341	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Lvalue ); }
	1342	\| ATOMIC
	1343	{ $$ = DeclarationNode::newQualifier( DeclarationNode::Atomic ); }
	1344	\| FORALL '('
	1345	{
	1346	typedefTable.enterScope();
	1347	}
	1348	type_parameter_list ')' // CFA
	1349	{
	1350	typedefTable.leaveScope();
	1351	$$ = DeclarationNode::newForall( $4 );
	1352	}
	1353	;
[51b7345]	1354
	1355	declaration_qualifier_list:
[4d51835]	1356	storage_class_list
[de62360d]	1357	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	1358	{ $$ = $1->addQualifiers( $2 ); }
	1359	\| declaration_qualifier_list type_qualifier_list storage_class_list
	1360	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1361	;
[51b7345]	1362
	1363	storage_class_list:
[de62360d]	1364	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	1365	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	1366	//
[de62360d]	1367	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	1368	// specifiers in a declaration.
[4d51835]	1369	storage_class
	1370	\| storage_class_list storage_class
	1371	{ $$ = $1->addQualifiers( $2 ); }
	1372	;
[51b7345]	1373
	1374	storage_class:
[4d51835]	1375	EXTERN
	1376	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Extern ); }
	1377	\| STATIC
	1378	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Static ); }
	1379	\| AUTO
	1380	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Auto ); }
	1381	\| REGISTER
	1382	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Register ); }
	1383	\| INLINE // C99
	1384	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Inline ); }
	1385	\| FORTRAN // C99
	1386	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Fortran ); }
[68cd1ce]	1387	\| NORETURN // C11
	1388	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Noreturn ); }
	1389	\| THREADLOCAL // C11
	1390	{ $$ = DeclarationNode::newStorageClass( DeclarationNode::Threadlocal ); }
[4d51835]	1391	;
[51b7345]	1392
	1393	basic_type_name:
[4d51835]	1394	CHAR
	1395	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
	1396	\| DOUBLE
	1397	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
	1398	\| FLOAT
	1399	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
	1400	\| INT
	1401	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
	1402	\| LONG
	1403	{ $$ = DeclarationNode::newModifier( DeclarationNode::Long ); }
	1404	\| SHORT
	1405	{ $$ = DeclarationNode::newModifier( DeclarationNode::Short ); }
	1406	\| SIGNED
	1407	{ $$ = DeclarationNode::newModifier( DeclarationNode::Signed ); }
	1408	\| UNSIGNED
	1409	{ $$ = DeclarationNode::newModifier( DeclarationNode::Unsigned ); }
	1410	\| VOID
	1411	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1412	\| BOOL // C99
	1413	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
	1414	\| COMPLEX // C99
	1415	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Complex ); }
	1416	\| IMAGINARY // C99
	1417	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Imaginary ); }
[90c3b1c]	1418	\| VALIST // GCC, __builtin_va_list
	1419	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); }
[4d51835]	1420	;
[51b7345]	1421
	1422	basic_declaration_specifier:
[4d51835]	1423	// A semantic check is necessary for conflicting storage classes.
	1424	basic_type_specifier
	1425	\| declaration_qualifier_list basic_type_specifier
	1426	{ $$ = $2->addQualifiers( $1 ); }
	1427	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1428	{ $$ = $1->addQualifiers( $2 ); }
	1429	\| basic_declaration_specifier storage_class type_qualifier_list
	1430	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1431	\| basic_declaration_specifier storage_class basic_type_specifier
	1432	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	1433	;
[51b7345]	1434
	1435	basic_type_specifier:
[4d51835]	1436	direct_type_name
	1437	\| type_qualifier_list_opt indirect_type_name type_qualifier_list_opt
	1438	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	1439	;
[51b7345]	1440
	1441	direct_type_name:
[4d51835]	1442	// A semantic check is necessary for conflicting type qualifiers.
	1443	basic_type_name
	1444	\| type_qualifier_list basic_type_name
	1445	{ $$ = $2->addQualifiers( $1 ); }
	1446	\| direct_type_name type_qualifier
	1447	{ $$ = $1->addQualifiers( $2 ); }
	1448	\| direct_type_name basic_type_name
	1449	{ $$ = $1->addType( $2 ); }
	1450	;
[51b7345]	1451
	1452	indirect_type_name:
[4d51835]	1453	TYPEOF '(' type_name ')' // GCC: typeof(x) y;
	1454	{ $$ = $3; }
	1455	\| TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y;
	1456	{ $$ = DeclarationNode::newTypeof( $3 ); }
	1457	\| ATTR_TYPEGENname '(' type_name ')' // CFA: e.g., @type(x) y;
	1458	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1459	\| ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y;
	1460	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1461	;
[51b7345]	1462
	1463	sue_declaration_specifier:
[4d51835]	1464	sue_type_specifier
	1465	\| declaration_qualifier_list sue_type_specifier
	1466	{ $$ = $2->addQualifiers( $1 ); }
	1467	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1468	{ $$ = $1->addQualifiers( $2 ); }
	1469	\| sue_declaration_specifier storage_class type_qualifier_list
	1470	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1471	;
[51b7345]	1472
	1473	sue_type_specifier:
[4d51835]	1474	elaborated_type_name // struct, union, enum
	1475	\| type_qualifier_list elaborated_type_name
	1476	{ $$ = $2->addQualifiers( $1 ); }
	1477	\| sue_type_specifier type_qualifier
	1478	{ $$ = $1->addQualifiers( $2 ); }
	1479	;
[51b7345]	1480
	1481	typedef_declaration_specifier:
[4d51835]	1482	typedef_type_specifier
	1483	\| declaration_qualifier_list typedef_type_specifier
	1484	{ $$ = $2->addQualifiers( $1 ); }
	1485	\| typedef_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1486	{ $$ = $1->addQualifiers( $2 ); }
	1487	\| typedef_declaration_specifier storage_class type_qualifier_list
	1488	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1489	;
[b87a5ed]	1490
	1491	typedef_type_specifier: // typedef types
[4d51835]	1492	TYPEDEFname
	1493	{ $$ = DeclarationNode::newFromTypedef( $1 ); }
	1494	\| type_qualifier_list TYPEDEFname
	1495	{ $$ = DeclarationNode::newFromTypedef( $2 )->addQualifiers( $1 ); }
	1496	\| typedef_type_specifier type_qualifier
	1497	{ $$ = $1->addQualifiers( $2 ); }
	1498	;
[51b7345]	1499
	1500	elaborated_type_name:
[4d51835]	1501	aggregate_name
	1502	\| enum_name
	1503	;
[51b7345]	1504
	1505	aggregate_name:
[4d51835]	1506	aggregate_key '{' field_declaration_list '}'
[5d125e4]	1507	{ $$ = DeclarationNode::newAggregate( $1, 0, 0, $3, true ); }
[2871210]	1508	\| aggregate_key no_attr_identifier_or_type_name
[45161b4d]	1509	{
	1510	typedefTable.makeTypedef( *$2 );
[5d125e4]	1511	$$ = DeclarationNode::newAggregate( $1, $2, 0, 0, false );
[45161b4d]	1512	}
	1513	\| aggregate_key no_attr_identifier_or_type_name
	1514	{ typedefTable.makeTypedef( *$2 ); }
	1515	'{' field_declaration_list '}'
[5d125e4]	1516	{ $$ = DeclarationNode::newAggregate( $1, $2, 0, $5, true ); }
[721f17a]	1517	\| aggregate_key '(' type_name_list ')' '{' field_declaration_list '}' // CFA
[5d125e4]	1518	{ $$ = DeclarationNode::newAggregate( $1, 0, $3, $6, false ); }
[2871210]	1519	\| aggregate_key typegen_name // CFA, S/R conflict
	1520	{ $$ = $2; }
[4d51835]	1521	;
[51b7345]	1522
	1523	aggregate_key:
[4d51835]	1524	STRUCT attribute_list_opt
	1525	{ $$ = DeclarationNode::Struct; }
	1526	\| UNION attribute_list_opt
	1527	{ $$ = DeclarationNode::Union; }
	1528	;
[51b7345]	1529
	1530	field_declaration_list:
[5d125e4]	1531	// empty
	1532	{ $$ = 0; }
[4d51835]	1533	\| field_declaration_list field_declaration
[5d125e4]	1534	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1535	;
[51b7345]	1536
	1537	field_declaration:
[4d51835]	1538	new_field_declaring_list ';' // CFA, new style field declaration
	1539	\| EXTENSION new_field_declaring_list ';' // GCC
[ca35c51]	1540	{ $$ = $2->set_extension( true ); }
[4d51835]	1541	\| field_declaring_list ';'
	1542	\| EXTENSION field_declaring_list ';' // GCC
[8e9cbb2]	1543	{ // mark all fields in list
[926af74]	1544	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	1545	iter->set_extension( true );
	1546	$$ = $2;
	1547	}
[4d51835]	1548	;
[b87a5ed]	1549
	1550	new_field_declaring_list: // CFA, new style field declaration
[4d51835]	1551	new_abstract_declarator_tuple // CFA, no field name
[2871210]	1552	\| new_abstract_declarator_tuple no_attr_identifier_or_type_name
[4d51835]	1553	{ $$ = $1->addName( $2 ); }
[2871210]	1554	\| new_field_declaring_list ',' no_attr_identifier_or_type_name
[4d51835]	1555	{ $$ = $1->appendList( $1->cloneType( $3 ) ); }
	1556	\| new_field_declaring_list ',' // CFA, no field name
	1557	{ $$ = $1->appendList( $1->cloneType( 0 ) ); }
	1558	;
[51b7345]	1559
	1560	field_declaring_list:
[4d51835]	1561	type_specifier field_declarator
	1562	{ $$ = $2->addType( $1 ); }
	1563	\| field_declaring_list ',' attribute_list_opt field_declarator
	1564	{ $$ = $1->appendList( $1->cloneBaseType( $4 ) ); }
	1565	;
[51b7345]	1566
	1567	field_declarator:
[4d51835]	1568	// empty
	1569	{ $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name
	1570	\| bit_subrange_size // no field name
	1571	{ $$ = DeclarationNode::newBitfield( $1 ); }
	1572	\| variable_declarator bit_subrange_size_opt
	1573	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1574	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	1575	\| variable_type_redeclarator bit_subrange_size_opt
[4d51835]	1576	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1577	{ $$ = $1->addBitfield( $2 ); }
	1578	\| variable_abstract_declarator // CFA, no field name
	1579	;
[51b7345]	1580
	1581	bit_subrange_size_opt:
[4d51835]	1582	// empty
	1583	{ $$ = 0; }
	1584	\| bit_subrange_size
	1585	{ $$ = $1; }
	1586	;
[51b7345]	1587
	1588	bit_subrange_size:
[4d51835]	1589	':' constant_expression
	1590	{ $$ = $2; }
	1591	;
[51b7345]	1592
	1593	enum_key:
[4d51835]	1594	ENUM attribute_list_opt
	1595	;
[51b7345]	1596
	1597	enum_name:
[4d51835]	1598	enum_key '{' enumerator_list comma_opt '}'
	1599	{ $$ = DeclarationNode::newEnum( 0, $3 ); }
[2871210]	1600	\| enum_key no_attr_identifier_or_type_name
[45161b4d]	1601	{
	1602	typedefTable.makeTypedef( *$2 );
	1603	$$ = DeclarationNode::newEnum( $2, 0 );
	1604	}
	1605	\| enum_key no_attr_identifier_or_type_name
	1606	{ typedefTable.makeTypedef( *$2 ); }
	1607	'{' enumerator_list comma_opt '}'
	1608	{ $$ = DeclarationNode::newEnum( $2, $5 ); }
[4d51835]	1609	;
[51b7345]	1610
	1611	enumerator_list:
[2871210]	1612	no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1613	{ $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
[2871210]	1614	\| enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1615	{ $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
	1616	;
[51b7345]	1617
	1618	enumerator_value_opt:
[4d51835]	1619	// empty
	1620	{ $$ = 0; }
	1621	\| '=' constant_expression
	1622	{ $$ = $2; }
	1623	;
[51b7345]	1624
[c11e31c]	1625	// Minimum of one parameter after which ellipsis is allowed only at the end.
[51b7345]	1626
[b87a5ed]	1627	new_parameter_type_list_opt: // CFA
[4d51835]	1628	// empty
	1629	{ $$ = 0; }
	1630	\| new_parameter_type_list
	1631	;
[b87a5ed]	1632
	1633	new_parameter_type_list: // CFA, abstract + real
[4d51835]	1634	new_abstract_parameter_list
	1635	\| new_parameter_list
	1636	\| new_parameter_list pop ',' push new_abstract_parameter_list
	1637	{ $$ = $1->appendList( $5 ); }
	1638	\| new_abstract_parameter_list pop ',' push ELLIPSIS
	1639	{ $$ = $1->addVarArgs(); }
	1640	\| new_parameter_list pop ',' push ELLIPSIS
	1641	{ $$ = $1->addVarArgs(); }
	1642	;
[b87a5ed]	1643
	1644	new_parameter_list: // CFA
[de62360d]	1645	// To obtain LR(1) between new_parameter_list and new_abstract_tuple, the last new_abstract_parameter_list is
	1646	// factored out from new_parameter_list, flattening the rules to get lookahead to the ']'.
[4d51835]	1647	new_parameter_declaration
	1648	\| new_abstract_parameter_list pop ',' push new_parameter_declaration
	1649	{ $$ = $1->appendList( $5 ); }
	1650	\| new_parameter_list pop ',' push new_parameter_declaration
	1651	{ $$ = $1->appendList( $5 ); }
	1652	\| new_parameter_list pop ',' push new_abstract_parameter_list pop ',' push new_parameter_declaration
	1653	{ $$ = $1->appendList( $5 )->appendList( $9 ); }
	1654	;
[b87a5ed]	1655
	1656	new_abstract_parameter_list: // CFA, new & old style abstract
[4d51835]	1657	new_abstract_parameter_declaration
	1658	\| new_abstract_parameter_list pop ',' push new_abstract_parameter_declaration
	1659	{ $$ = $1->appendList( $5 ); }
	1660	;
[51b7345]	1661
	1662	parameter_type_list_opt:
[4d51835]	1663	// empty
	1664	{ $$ = 0; }
	1665	\| parameter_type_list
	1666	;
[51b7345]	1667
	1668	parameter_type_list:
[4d51835]	1669	parameter_list
	1670	\| parameter_list pop ',' push ELLIPSIS
	1671	{ $$ = $1->addVarArgs(); }
	1672	;
[b87a5ed]	1673
	1674	parameter_list: // abstract + real
[4d51835]	1675	abstract_parameter_declaration
	1676	\| parameter_declaration
	1677	\| parameter_list pop ',' push abstract_parameter_declaration
	1678	{ $$ = $1->appendList( $5 ); }
	1679	\| parameter_list pop ',' push parameter_declaration
	1680	{ $$ = $1->appendList( $5 ); }
	1681	;
[51b7345]	1682
[de62360d]	1683	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	1684	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b7345]	1685
[b87a5ed]	1686	new_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1687	parameter_declaration
[2871210]	1688	\| new_identifier_parameter_declarator_no_tuple identifier_or_type_name assignment_opt
[4d51835]	1689	{ $$ = $1->addName( $2 ); }
[2871210]	1690	\| new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1691	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1692	{ $$ = $1->addName( $2 ); }
[2871210]	1693	\| type_qualifier_list new_abstract_tuple identifier_or_type_name assignment_opt
[4d51835]	1694	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
	1695	\| new_function_specifier
	1696	;
[b87a5ed]	1697
	1698	new_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	1699	abstract_parameter_declaration
	1700	\| new_identifier_parameter_declarator_no_tuple
	1701	\| new_abstract_tuple
	1702	// To obtain LR(1), these rules must be duplicated here (see new_abstract_declarator).
	1703	\| type_qualifier_list new_abstract_tuple
	1704	{ $$ = $2->addQualifiers( $1 ); }
	1705	\| new_abstract_function
	1706	;
[51b7345]	1707
	1708	parameter_declaration:
[4d51835]	1709	declaration_specifier identifier_parameter_declarator assignment_opt
	1710	{
	1711	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1712	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1713	}
[2871210]	1714	\| declaration_specifier type_parameter_redeclarator assignment_opt
[4d51835]	1715	{
	1716	typedefTable.addToEnclosingScope( TypedefTable::ID );
[de62360d]	1717	$$ = $2->addType( $1 )->addInitializer( new InitializerNode( $3 ) );
[4d51835]	1718	}
	1719	;
[51b7345]	1720
	1721	abstract_parameter_declaration:
[4d51835]	1722	declaration_specifier
	1723	\| declaration_specifier abstract_parameter_declarator
	1724	{ $$ = $2->addType( $1 ); }
	1725	;
[51b7345]	1726
[c11e31c]	1727	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	1728	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	1729	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b7345]	1730
[b87a5ed]	1731	identifier_list: // K&R-style parameter list => no types
[4d51835]	1732	no_attr_identifier
	1733	{ $$ = DeclarationNode::newName( $1 ); }
	1734	\| identifier_list ',' no_attr_identifier
	1735	{ $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
	1736	;
[51b7345]	1737
[2871210]	1738	identifier_or_type_name:
[4d51835]	1739	identifier
	1740	\| TYPEDEFname
	1741	\| TYPEGENname
	1742	;
[51b7345]	1743
[2871210]	1744	no_01_identifier_or_type_name:
[4d51835]	1745	no_01_identifier
	1746	\| TYPEDEFname
	1747	\| TYPEGENname
	1748	;
[51b7345]	1749
[2871210]	1750	no_attr_identifier_or_type_name:
[4d51835]	1751	no_attr_identifier
	1752	\| TYPEDEFname
[721f17a]	1753	\| TYPEGENname
[4d51835]	1754	;
[b87a5ed]	1755
	1756	type_name_no_function: // sizeof, alignof, cast (constructor)
[4d51835]	1757	new_abstract_declarator_tuple // CFA
	1758	\| type_specifier
	1759	\| type_specifier variable_abstract_declarator
	1760	{ $$ = $2->addType( $1 ); }
	1761	;
[b87a5ed]	1762
	1763	type_name: // typeof, assertion
[4d51835]	1764	new_abstract_declarator_tuple // CFA
	1765	\| new_abstract_function // CFA
	1766	\| type_specifier
	1767	\| type_specifier abstract_declarator
	1768	{ $$ = $2->addType( $1 ); }
	1769	;
[51b7345]	1770
	1771	initializer_opt:
[4d51835]	1772	// empty
	1773	{ $$ = 0; }
[2871210]	1774	\| '=' initializer
	1775	{ $$ = $2; }
[097e2b0]	1776	\| ATassign initializer
[974906e2]	1777	{ $$ = $2->set_maybeConstructed( false ); }
[4d51835]	1778	;
[51b7345]	1779
	1780	initializer:
[de62360d]	1781	assignment_expression { $$ = new InitializerNode( $1 ); }
	1782	\| '{' initializer_list comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	1783	;
[51b7345]	1784
	1785	initializer_list:
[097e2b0]	1786	// empty
	1787	{ $$ = 0; }
	1788	\| initializer
[4d51835]	1789	\| designation initializer { $$ = $2->set_designators( $1 ); }
[1d4580a]	1790	\| initializer_list ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); }
[4d51835]	1791	\| initializer_list ',' designation initializer
[1d4580a]	1792	{ $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); }
[4d51835]	1793	;
[b87a5ed]	1794
[de62360d]	1795	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	1796	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	1797	//
[b87a5ed]	1798	// int x[10] = { [1] = 3 };
[c11e31c]	1799	//
[de62360d]	1800	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	1801	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	1802	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	1803	// shift/reduce conflicts
[51b7345]	1804
	1805	designation:
[4d51835]	1806	designator_list ':' // C99, CFA uses ":" instead of "="
[2871210]	1807	\| no_attr_identifier_or_type_name ':' // GCC, field name
[d1625f8]	1808	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	1809	;
[51b7345]	1810
[b87a5ed]	1811	designator_list: // C99
[4d51835]	1812	designator
[2871210]	1813	\| designator_list designator
[1d4580a]	1814	{ $$ = (ExpressionNode *)( $1->set_last( $2 ) ); }
[d1625f8]	1815	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	1816	;
[51b7345]	1817
	1818	designator:
[d1625f8]	1819	'.' no_attr_identifier_or_type_name // C99, field name
	1820	{ $$ = new ExpressionNode( build_varref( $2 ) ); }
[4d51835]	1821	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	1822	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	1823	{ $$ = $3; }
[4d51835]	1824	\| '[' push subrange pop ']' // CFA, multiple array elements
[d1625f8]	1825	{ $$ = $3; }
[4d51835]	1826	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[d1625f8]	1827	{ $$ = new ExpressionNode( build_range( $3, $5 ) ); }
[4d51835]	1828	\| '.' '[' push field_list pop ']' // CFA, tuple field selector
[d1625f8]	1829	{ $$ = $4; }
[4d51835]	1830	;
[51b7345]	1831
[de62360d]	1832	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	1833	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	1834	//
	1835	// Overloading: function, data, and operator identifiers may be overloaded.
	1836	//
[de62360d]	1837	// Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
	1838	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	1839	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	1840	//
[de62360d]	1841	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	1842	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	1843	//
	1844	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	1845	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	1846	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	1847	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	1848	// on type arguments of polymorphic functions.
[c11e31c]	1849
[b87a5ed]	1850	typegen_declaration_specifier: // CFA
[4d51835]	1851	typegen_type_specifier
	1852	\| declaration_qualifier_list typegen_type_specifier
	1853	{ $$ = $2->addQualifiers( $1 ); }
	1854	\| typegen_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1855	{ $$ = $1->addQualifiers( $2 ); }
	1856	\| typegen_declaration_specifier storage_class type_qualifier_list
	1857	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1858	;
[b87a5ed]	1859
	1860	typegen_type_specifier: // CFA
[2871210]	1861	typegen_name
	1862	\| type_qualifier_list typegen_name
	1863	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	1864	\| typegen_type_specifier type_qualifier
	1865	{ $$ = $1->addQualifiers( $2 ); }
	1866	;
[b87a5ed]	1867
[2871210]	1868	typegen_name: // CFA
	1869	TYPEGENname '(' type_name_list ')'
	1870	{ $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
	1871	;
	1872
[b87a5ed]	1873	type_parameter_list: // CFA
[4d51835]	1874	type_parameter assignment_opt
	1875	\| type_parameter_list ',' type_parameter assignment_opt
	1876	{ $$ = $1->appendList( $3 ); }
	1877	;
[b87a5ed]	1878
	1879	type_parameter: // CFA
[2871210]	1880	type_class no_attr_identifier_or_type_name
	1881	{ typedefTable.addToEnclosingScope( *$2, TypedefTable::TD ); }
[4d51835]	1882	assertion_list_opt
	1883	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addAssertions( $4 ); }
	1884	\| type_specifier identifier_parameter_declarator
	1885	;
[b87a5ed]	1886
	1887	type_class: // CFA
[4040425]	1888	OTYPE
[4d51835]	1889	{ $$ = DeclarationNode::Type; }
	1890	\| DTYPE
	1891	{ $$ = DeclarationNode::Ftype; }
	1892	\| FTYPE
	1893	{ $$ = DeclarationNode::Dtype; }
	1894	;
[b87a5ed]	1895
	1896	assertion_list_opt: // CFA
[4d51835]	1897	// empty
	1898	{ $$ = 0; }
	1899	\| assertion_list_opt assertion
[4e06c1e]	1900	{ $$ = $1 != 0 ? $1->appendList( $2 ) : $2; }
[4d51835]	1901	;
[b87a5ed]	1902
	1903	assertion: // CFA
[2871210]	1904	'\|' no_attr_identifier_or_type_name '(' type_name_list ')'
[4d51835]	1905	{
[4040425]	1906	typedefTable.openTrait( *$2 );
	1907	$$ = DeclarationNode::newTraitUse( $2, $4 );
[4d51835]	1908	}
[4040425]	1909	\| '\|' '{' push trait_declaration_list '}'
[4d51835]	1910	{ $$ = $4; }
[4040425]	1911	\| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list '}' '(' type_name_list ')'
[4d51835]	1912	{ $$ = 0; }
	1913	;
[b87a5ed]	1914
	1915	type_name_list: // CFA
[4d51835]	1916	type_name
[d1625f8]	1917	{ $$ = new ExpressionNode( build_typevalue( $1 ) ); }
[4d51835]	1918	\| assignment_expression
	1919	\| type_name_list ',' type_name
[1d4580a]	1920	{ $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( build_typevalue( $3 ) ) ) ); }
[4d51835]	1921	\| type_name_list ',' assignment_expression
[1d4580a]	1922	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	1923	;
[b87a5ed]	1924
	1925	type_declaring_list: // CFA
[4040425]	1926	OTYPE type_declarator
[4d51835]	1927	{ $$ = $2; }
[4040425]	1928	\| storage_class_list OTYPE type_declarator
[4d51835]	1929	{ $$ = $3->addQualifiers( $1 ); }
	1930	\| type_declaring_list ',' type_declarator
	1931	{ $$ = $1->appendList( $3->copyStorageClasses( $1 ) ); }
	1932	;
[b87a5ed]	1933
	1934	type_declarator: // CFA
[4d51835]	1935	type_declarator_name assertion_list_opt
	1936	{ $$ = $1->addAssertions( $2 ); }
	1937	\| type_declarator_name assertion_list_opt '=' type_name
	1938	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	1939	;
[b87a5ed]	1940
	1941	type_declarator_name: // CFA
[2871210]	1942	no_attr_identifier_or_type_name
[4d51835]	1943	{
[de62360d]	1944	typedefTable.addToEnclosingScope( *$1, TypedefTable::TD );
[4d51835]	1945	$$ = DeclarationNode::newTypeDecl( $1, 0 );
	1946	}
[2871210]	1947	\| no_01_identifier_or_type_name '(' push type_parameter_list pop ')'
[4d51835]	1948	{
[de62360d]	1949	typedefTable.addToEnclosingScope( *$1, TypedefTable::TG );
[4d51835]	1950	$$ = DeclarationNode::newTypeDecl( $1, $4 );
	1951	}
	1952	;
[b87a5ed]	1953
[4040425]	1954	trait_specifier: // CFA
	1955	TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}'
[4d51835]	1956	{
[de62360d]	1957	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1958	$$ = DeclarationNode::newTrait( $2, $5, 0 );
[4d51835]	1959	}
[4040425]	1960	\| TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{'
[4d51835]	1961	{
[4040425]	1962	typedefTable.enterTrait( *$2 );
[4d51835]	1963	typedefTable.enterScope();
	1964	}
[4040425]	1965	trait_declaration_list '}'
[4d51835]	1966	{
[4040425]	1967	typedefTable.leaveTrait();
[de62360d]	1968	typedefTable.addToEnclosingScope( *$2, TypedefTable::ID );
[4040425]	1969	$$ = DeclarationNode::newTrait( $2, $5, $10 );
[4d51835]	1970	}
	1971	;
[b87a5ed]	1972
[4040425]	1973	trait_declaration_list: // CFA
	1974	trait_declaration
	1975	\| trait_declaration_list push trait_declaration
[4d51835]	1976	{ $$ = $1->appendList( $3 ); }
	1977	;
[b87a5ed]	1978
[4040425]	1979	trait_declaration: // CFA
	1980	new_trait_declaring_list pop ';'
	1981	\| trait_declaring_list pop ';'
[4d51835]	1982	;
[b87a5ed]	1983
[4040425]	1984	new_trait_declaring_list: // CFA
[4d51835]	1985	new_variable_specifier
	1986	{
	1987	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1988	$$ = $1;
	1989	}
	1990	\| new_function_specifier
	1991	{
	1992	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	1993	$$ = $1;
	1994	}
[4040425]	1995	\| new_trait_declaring_list pop ',' push identifier_or_type_name
[4d51835]	1996	{
[de62360d]	1997	typedefTable.addToEnclosingScope2( *$5, TypedefTable::ID );
[4d51835]	1998	$$ = $1->appendList( $1->cloneType( $5 ) );
	1999	}
	2000	;
[b87a5ed]	2001
[4040425]	2002	trait_declaring_list: // CFA
[4d51835]	2003	type_specifier declarator
	2004	{
	2005	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	2006	$$ = $2->addType( $1 );
	2007	}
[4040425]	2008	\| trait_declaring_list pop ',' push declarator
[4d51835]	2009	{
	2010	typedefTable.addToEnclosingScope2( TypedefTable::ID );
	2011	$$ = $1->appendList( $1->cloneBaseType( $5 ) );
	2012	}
	2013	;
[51b7345]	2014
[c11e31c]	2015	//*************************** EXTERNAL DEFINITIONS ***************************
[51b7345]	2016
	2017	translation_unit:
[4d51835]	2018	// empty
	2019	{} // empty input file
	2020	\| external_definition_list
[926af74]	2021	{ parseTree = parseTree != nullptr ? parseTree->appendList( $1 ) : $1; }
[4d51835]	2022	;
[51b7345]	2023
	2024	external_definition_list:
[4d51835]	2025	external_definition
	2026	\| external_definition_list push external_definition
[926af74]	2027	{ $$ = $1 != nullptr ? $1->appendList( $3 ) : $3; }
[4d51835]	2028	;
[51b7345]	2029
	2030	external_definition_list_opt:
[4d51835]	2031	// empty
	2032	{ $$ = 0; }
	2033	\| external_definition_list
	2034	;
[51b7345]	2035
	2036	external_definition:
[4d51835]	2037	declaration
	2038	\| external_function_definition
	2039	\| asm_statement // GCC, global assembler statement
	2040	{}
	2041	\| EXTERN STRINGliteral
	2042	{
[3b8e52c]	2043	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[ab57786]	2044	linkage = LinkageSpec::fromString( *$2 );
[4d51835]	2045	}
	2046	'{' external_definition_list_opt '}' // C++-style linkage specifier
	2047	{
	2048	linkage = linkageStack.top();
	2049	linkageStack.pop();
	2050	$$ = $5;
	2051	}
	2052	\| EXTENSION external_definition
[8e9cbb2]	2053	{ // mark all fields in list
[926af74]	2054	for ( DeclarationNode iter = $2; iter != nullptr; iter = (DeclarationNode )iter->get_next() )
[8e9cbb2]	2055	iter->set_extension( true );
	2056	$$ = $2;
	2057	}
[4d51835]	2058	;
	2059
	2060	external_function_definition:
	2061	function_definition
[de62360d]	2062	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	2063	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	2064	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	2065	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	2066	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	2067	\| function_declarator compound_statement
	2068	{
	2069	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2070	typedefTable.leaveScope();
	2071	$$ = $1->addFunctionBody( $2 );
	2072	}
	2073	\| old_function_declarator push old_declaration_list_opt compound_statement
	2074	{
	2075	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2076	typedefTable.leaveScope();
	2077	$$ = $1->addOldDeclList( $3 )->addFunctionBody( $4 );
	2078	}
	2079	;
[51b7345]	2080
	2081	function_definition:
[4d51835]	2082	new_function_declaration compound_statement // CFA
	2083	{
	2084	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2085	typedefTable.leaveScope();
	2086	$$ = $1->addFunctionBody( $2 );
	2087	}
	2088	\| declaration_specifier function_declarator compound_statement
	2089	{
	2090	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2091	typedefTable.leaveScope();
	2092	$$ = $2->addFunctionBody( $3 )->addType( $1 );
	2093	}
	2094	\| type_qualifier_list function_declarator compound_statement
	2095	{
	2096	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2097	typedefTable.leaveScope();
	2098	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2099	}
	2100	\| declaration_qualifier_list function_declarator compound_statement
	2101	{
	2102	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2103	typedefTable.leaveScope();
	2104	$$ = $2->addFunctionBody( $3 )->addQualifiers( $1 );
	2105	}
	2106	\| declaration_qualifier_list type_qualifier_list function_declarator compound_statement
	2107	{
	2108	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2109	typedefTable.leaveScope();
	2110	$$ = $3->addFunctionBody( $4 )->addQualifiers( $2 )->addQualifiers( $1 );
	2111	}
	2112
	2113	// Old-style K&R function definition, OBSOLESCENT (see 4)
	2114	\| declaration_specifier old_function_declarator push old_declaration_list_opt compound_statement
	2115	{
	2116	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2117	typedefTable.leaveScope();
	2118	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addType( $1 );
	2119	}
	2120	\| type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2121	{
	2122	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2123	typedefTable.leaveScope();
	2124	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2125	}
	2126
	2127	// Old-style K&R function definition with "implicit int" type_specifier, OBSOLESCENT (see 4)
	2128	\| declaration_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2129	{
	2130	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2131	typedefTable.leaveScope();
	2132	$$ = $2->addOldDeclList( $4 )->addFunctionBody( $5 )->addQualifiers( $1 );
	2133	}
	2134	\| declaration_qualifier_list type_qualifier_list old_function_declarator push old_declaration_list_opt compound_statement
	2135	{
	2136	typedefTable.addToEnclosingScope( TypedefTable::ID );
	2137	typedefTable.leaveScope();
	2138	$$ = $3->addOldDeclList( $5 )->addFunctionBody( $6 )->addQualifiers( $2 )->addQualifiers( $1 );
	2139	}
	2140	;
[51b7345]	2141
	2142	declarator:
[4d51835]	2143	variable_declarator
[c6b1105]	2144	\| variable_type_redeclarator
[4d51835]	2145	\| function_declarator
	2146	;
[51b7345]	2147
	2148	subrange:
[4d51835]	2149	constant_expression '~' constant_expression // CFA, integer subrange
[d1625f8]	2150	{ $$ = new ExpressionNode( build_range( $1, $3 ) ); }
[4d51835]	2151	;
[b87a5ed]	2152
	2153	asm_name_opt: // GCC
[4d51835]	2154	// empty
	2155	\| ASM '(' string_literal_list ')' attribute_list_opt
[8d2844a]	2156	{ delete $3; }
[4d51835]	2157	;
[b87a5ed]	2158
	2159	attribute_list_opt: // GCC
[4d51835]	2160	// empty
[1db21619]	2161	{ $$ = 0; }
[4d51835]	2162	\| attribute_list
	2163	;
[b87a5ed]	2164
	2165	attribute_list: // GCC
[4d51835]	2166	attribute
	2167	\| attribute_list attribute
[1db21619]	2168	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	2169	;
[b87a5ed]	2170
	2171	attribute: // GCC
[4d51835]	2172	ATTRIBUTE '(' '(' attribute_parameter_list ')' ')'
[1db21619]	2173	// { $$ = DeclarationNode::newQualifier( DeclarationNode::Attribute ); }
	2174	{ $$ = 0; }
[4d51835]	2175	;
[b87a5ed]	2176
	2177	attribute_parameter_list: // GCC
[4d51835]	2178	attrib
	2179	\| attribute_parameter_list ',' attrib
	2180	;
[b87a5ed]	2181
	2182	attrib: // GCC
[4d51835]	2183	// empty
	2184	\| any_word
	2185	\| any_word '(' comma_expression_opt ')'
[8d2844a]	2186	{ delete $3; }
[4d51835]	2187	;
[b87a5ed]	2188
	2189	any_word: // GCC
[2037f82]	2190	identifier_or_type_name { delete $1; }
	2191	\| storage_class { delete $1; }
	2192	\| basic_type_name { delete $1; }
	2193	\| type_qualifier { delete $1; }
[4d51835]	2194	;
[51b7345]	2195
[c11e31c]	2196	// ============================================================================
[de62360d]	2197	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	2198	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	2199	// in:
[c11e31c]	2200	//
[b87a5ed]	2201	// int (*f())[10] { ... };
	2202	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	2203	//
[de62360d]	2204	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	2205	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	2206	// ============================================================================
	2207
	2208	// ----------------------------------------------------------------------------
[de62360d]	2209	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	2210	// to define a variable or function prototype, e.g.:
[c11e31c]	2211	//
[b87a5ed]	2212	// valid declaration invalid definition
	2213	// ----------------- ------------------
[4d51835]	2214	// int f; int f {}
	2215	// int f; int f {}
[b87a5ed]	2216	// int f[10]; int f[10] {}
[4d51835]	2217	// int (f)(int); int (f)(int) {}
[c11e31c]	2218	//
[de62360d]	2219	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	2220	// variable_declarator and function_declarator.
[c11e31c]	2221	// ----------------------------------------------------------------------------
	2222
[de62360d]	2223	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	2224	// declaring an array of functions versus a pointer to an array of functions.
[51b7345]	2225
	2226	variable_declarator:
[4d51835]	2227	paren_identifier attribute_list_opt
[1db21619]	2228	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2229	\| variable_ptr
	2230	\| variable_array attribute_list_opt
[1db21619]	2231	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2232	\| variable_function attribute_list_opt
[1db21619]	2233	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2234	;
[51b7345]	2235
	2236	paren_identifier:
[4d51835]	2237	identifier
	2238	{
[de62360d]	2239	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2240	$$ = DeclarationNode::newName( $1 );
	2241	}
	2242	\| '(' paren_identifier ')' // redundant parenthesis
	2243	{ $$ = $2; }
	2244	;
[51b7345]	2245
	2246	variable_ptr:
[dd51906]	2247	ptrref_operator variable_declarator
[4d51835]	2248	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2249	\| ptrref_operator type_qualifier_list variable_declarator
[4d51835]	2250	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2251	\| '(' variable_ptr ')'
	2252	{ $$ = $2; }
	2253	;
[51b7345]	2254
	2255	variable_array:
[4d51835]	2256	paren_identifier array_dimension
	2257	{ $$ = $1->addArray( $2 ); }
	2258	\| '(' variable_ptr ')' array_dimension
	2259	{ $$ = $2->addArray( $4 ); }
	2260	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
	2261	{ $$ = $2->addArray( $4 ); }
	2262	\| '(' variable_array ')' // redundant parenthesis
	2263	{ $$ = $2; }
	2264	;
[51b7345]	2265
	2266	variable_function:
[4d51835]	2267	'(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2268	{ $$ = $2->addParamList( $6 ); }
	2269	\| '(' variable_function ')' // redundant parenthesis
	2270	{ $$ = $2; }
	2271	;
[51b7345]	2272
[c6b1105]	2273	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	2274	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	2275	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b7345]	2276
	2277	function_declarator:
[4d51835]	2278	function_no_ptr attribute_list_opt
[1db21619]	2279	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2280	\| function_ptr
	2281	\| function_array attribute_list_opt
[1db21619]	2282	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2283	;
[51b7345]	2284
	2285	function_no_ptr:
[4d51835]	2286	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2287	{ $$ = $1->addParamList( $4 ); }
	2288	\| '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2289	{ $$ = $2->addParamList( $6 ); }
	2290	\| '(' function_no_ptr ')' // redundant parenthesis
	2291	{ $$ = $2; }
	2292	;
[51b7345]	2293
	2294	function_ptr:
[dd51906]	2295	ptrref_operator function_declarator
[4d51835]	2296	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2297	\| ptrref_operator type_qualifier_list function_declarator
[4d51835]	2298	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2299	\| '(' function_ptr ')'
	2300	{ $$ = $2; }
	2301	;
[51b7345]	2302
	2303	function_array:
[4d51835]	2304	'(' function_ptr ')' array_dimension
	2305	{ $$ = $2->addArray( $4 ); }
	2306	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	2307	{ $$ = $2->addArray( $4 ); }
	2308	\| '(' function_array ')' // redundant parenthesis
	2309	{ $$ = $2; }
	2310	;
[51b7345]	2311
[de62360d]	2312	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4) that is not redefining a typedef name
	2313	// (see function_declarator for additional comments). The pattern precludes returning arrays and functions versus
	2314	// pointers to arrays and functions.
[51b7345]	2315
	2316	old_function_declarator:
[4d51835]	2317	old_function_no_ptr
	2318	\| old_function_ptr
	2319	\| old_function_array
	2320	;
[51b7345]	2321
	2322	old_function_no_ptr:
[4d51835]	2323	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	2324	{ $$ = $1->addIdList( $3 ); }
	2325	\| '(' old_function_ptr ')' '(' identifier_list ')'
	2326	{ $$ = $2->addIdList( $5 ); }
	2327	\| '(' old_function_no_ptr ')' // redundant parenthesis
	2328	{ $$ = $2; }
	2329	;
[51b7345]	2330
	2331	old_function_ptr:
[dd51906]	2332	ptrref_operator old_function_declarator
[4d51835]	2333	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2334	\| ptrref_operator type_qualifier_list old_function_declarator
[4d51835]	2335	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2336	\| '(' old_function_ptr ')'
	2337	{ $$ = $2; }
	2338	;
[51b7345]	2339
	2340	old_function_array:
[4d51835]	2341	'(' old_function_ptr ')' array_dimension
	2342	{ $$ = $2->addArray( $4 ); }
	2343	\| '(' old_function_array ')' multi_array_dimension // redundant parenthesis
	2344	{ $$ = $2->addArray( $4 ); }
	2345	\| '(' old_function_array ')' // redundant parenthesis
	2346	{ $$ = $2; }
	2347	;
[51b7345]	2348
[2871210]	2349	// This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
[c11e31c]	2350	//
[b87a5ed]	2351	// typedef int foo;
	2352	// {
	2353	// int foo; // redefine typedef name in new scope
	2354	// }
[c11e31c]	2355	//
[de62360d]	2356	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2357	// and functions versus pointers to arrays and functions.
[51b7345]	2358
[c6b1105]	2359	variable_type_redeclarator:
[2871210]	2360	paren_type attribute_list_opt
[1db21619]	2361	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2362	\| type_ptr
	2363	\| type_array attribute_list_opt
[1db21619]	2364	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2365	\| type_function attribute_list_opt
[1db21619]	2366	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2367	;
[51b7345]	2368
[2871210]	2369	paren_type:
	2370	typedef
	2371	\| '(' paren_type ')'
[4d51835]	2372	{ $$ = $2; }
	2373	;
[51b7345]	2374
[2871210]	2375	type_ptr:
[c6b1105]	2376	ptrref_operator variable_type_redeclarator
[4d51835]	2377	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[c6b1105]	2378	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[4d51835]	2379	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2380	\| '(' type_ptr ')'
[4d51835]	2381	{ $$ = $2; }
	2382	;
[51b7345]	2383
[2871210]	2384	type_array:
	2385	paren_type array_dimension
[4d51835]	2386	{ $$ = $1->addArray( $2 ); }
[2871210]	2387	\| '(' type_ptr ')' array_dimension
[4d51835]	2388	{ $$ = $2->addArray( $4 ); }
[2871210]	2389	\| '(' type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2390	{ $$ = $2->addArray( $4 ); }
[2871210]	2391	\| '(' type_array ')' // redundant parenthesis
[4d51835]	2392	{ $$ = $2; }
	2393	;
[51b7345]	2394
[2871210]	2395	type_function:
	2396	paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2397	{ $$ = $1->addParamList( $4 ); }
[2871210]	2398	\| '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2399	{ $$ = $2->addParamList( $6 ); }
[2871210]	2400	\| '(' type_function ')' // redundant parenthesis
[4d51835]	2401	{ $$ = $2; }
	2402	;
[51b7345]	2403
[de62360d]	2404	// This pattern parses a declaration for a parameter variable or function prototype that is not redefining a typedef
	2405	// name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes declaring an
	2406	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	2407	// arrays and functions.
[51b7345]	2408
	2409	identifier_parameter_declarator:
[4d51835]	2410	paren_identifier attribute_list_opt
[1db21619]	2411	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2412	\| identifier_parameter_ptr
	2413	\| identifier_parameter_array attribute_list_opt
[1db21619]	2414	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2415	\| identifier_parameter_function attribute_list_opt
[1db21619]	2416	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2417	;
[51b7345]	2418
	2419	identifier_parameter_ptr:
[dd51906]	2420	ptrref_operator identifier_parameter_declarator
[4d51835]	2421	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2422	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[4d51835]	2423	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2424	\| '(' identifier_parameter_ptr ')'
	2425	{ $$ = $2; }
	2426	;
[51b7345]	2427
	2428	identifier_parameter_array:
[4d51835]	2429	paren_identifier array_parameter_dimension
	2430	{ $$ = $1->addArray( $2 ); }
	2431	\| '(' identifier_parameter_ptr ')' array_dimension
	2432	{ $$ = $2->addArray( $4 ); }
	2433	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	2434	{ $$ = $2->addArray( $4 ); }
	2435	\| '(' identifier_parameter_array ')' // redundant parenthesis
	2436	{ $$ = $2; }
	2437	;
[51b7345]	2438
	2439	identifier_parameter_function:
[4d51835]	2440	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2441	{ $$ = $1->addParamList( $4 ); }
	2442	\| '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2443	{ $$ = $2->addParamList( $6 ); }
	2444	\| '(' identifier_parameter_function ')' // redundant parenthesis
	2445	{ $$ = $2; }
	2446	;
[b87a5ed]	2447
[de62360d]	2448	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	2449	// e.g.:
[c11e31c]	2450	//
[b87a5ed]	2451	// typedef int foo;
	2452	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	2453	//
[de62360d]	2454	// and allows the C99 array options, which can only appear in a parameter list. In addition, the pattern handles the
	2455	// special meaning of parenthesis around a typedef name:
[c11e31c]	2456	//
[b87a5ed]	2457	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	2458	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	2459	// not as redundant parentheses around the identifier."
[c11e31c]	2460	//
[c6b1105]	2461	// For example:
[c11e31c]	2462	//
[b87a5ed]	2463	// typedef float T;
[4d51835]	2464	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
[b87a5ed]	2465	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	2466	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	2467	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
[c11e31c]	2468	//
[de62360d]	2469	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	2470	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	2471	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	2472	// functions.
[51b7345]	2473
[2871210]	2474	type_parameter_redeclarator:
[4d51835]	2475	typedef attribute_list_opt
[1db21619]	2476	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2477	\| type_parameter_ptr
	2478	\| type_parameter_array attribute_list_opt
[1db21619]	2479	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2480	\| type_parameter_function attribute_list_opt
[1db21619]	2481	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2482	;
[51b7345]	2483
	2484	typedef:
[4d51835]	2485	TYPEDEFname
	2486	{
[de62360d]	2487	typedefTable.setNextIdentifier( *$1 );
[4d51835]	2488	$$ = DeclarationNode::newName( $1 );
	2489	}
[2871210]	2490	\| TYPEGENname
	2491	{
	2492	typedefTable.setNextIdentifier( *$1 );
	2493	$$ = DeclarationNode::newName( $1 );
	2494	}
[4d51835]	2495	;
[51b7345]	2496
[2871210]	2497	type_parameter_ptr:
[dd51906]	2498	ptrref_operator type_parameter_redeclarator
[4d51835]	2499	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2500	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[4d51835]	2501	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
[2871210]	2502	\| '(' type_parameter_ptr ')'
[4d51835]	2503	{ $$ = $2; }
	2504	;
[51b7345]	2505
[2871210]	2506	type_parameter_array:
[4d51835]	2507	typedef array_parameter_dimension
	2508	{ $$ = $1->addArray( $2 ); }
[2871210]	2509	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	2510	{ $$ = $2->addArray( $4 ); }
	2511	;
[51b7345]	2512
[2871210]	2513	type_parameter_function:
[4d51835]	2514	typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2515	{ $$ = $1->addParamList( $4 ); }
[2871210]	2516	\| '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2517	{ $$ = $2->addParamList( $6 ); }
	2518	;
[b87a5ed]	2519
[de62360d]	2520	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	2521	// which the type applies, e.g.:
[c11e31c]	2522	//
[b87a5ed]	2523	// sizeof( int );
	2524	// sizeof( int [10] );
[c11e31c]	2525	//
[de62360d]	2526	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2527	// and functions versus pointers to arrays and functions.
[51b7345]	2528
	2529	abstract_declarator:
[4d51835]	2530	abstract_ptr
	2531	\| abstract_array attribute_list_opt
[1db21619]	2532	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2533	\| abstract_function attribute_list_opt
[1db21619]	2534	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2535	;
[51b7345]	2536
	2537	abstract_ptr:
[dd51906]	2538	ptrref_operator
[4d51835]	2539	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2540	\| ptrref_operator type_qualifier_list
[4d51835]	2541	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2542	\| ptrref_operator abstract_declarator
[4d51835]	2543	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2544	\| ptrref_operator type_qualifier_list abstract_declarator
[4d51835]	2545	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2546	\| '(' abstract_ptr ')'
	2547	{ $$ = $2; }
	2548	;
[51b7345]	2549
	2550	abstract_array:
[4d51835]	2551	array_dimension
	2552	\| '(' abstract_ptr ')' array_dimension
	2553	{ $$ = $2->addArray( $4 ); }
	2554	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	2555	{ $$ = $2->addArray( $4 ); }
	2556	\| '(' abstract_array ')' // redundant parenthesis
	2557	{ $$ = $2; }
	2558	;
[51b7345]	2559
	2560	abstract_function:
[4d51835]	2561	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2562	{ $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); }
	2563	\| '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2564	{ $$ = $2->addParamList( $6 ); }
	2565	\| '(' abstract_function ')' // redundant parenthesis
	2566	{ $$ = $2; }
	2567	;
[51b7345]	2568
	2569	array_dimension:
[4d51835]	2570	// Only the first dimension can be empty.
[2871210]	2571	'[' ']'
[4d51835]	2572	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[2871210]	2573	\| '[' ']' multi_array_dimension
	2574	{ $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
[4d51835]	2575	\| multi_array_dimension
	2576	;
[51b7345]	2577
	2578	multi_array_dimension:
[4d51835]	2579	'[' push assignment_expression pop ']'
	2580	{ $$ = DeclarationNode::newArray( $3, 0, false ); }
	2581	\| '[' push '*' pop ']' // C99
	2582	{ $$ = DeclarationNode::newVarArray( 0 ); }
	2583	\| multi_array_dimension '[' push assignment_expression pop ']'
	2584	{ $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
	2585	\| multi_array_dimension '[' push '*' pop ']' // C99
	2586	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	2587	;
[51b7345]	2588
[c11e31c]	2589	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	2590	// identifier to which the type applies, e.g.:
	2591	//
[b87a5ed]	2592	// int f( int ); // abstract variable parameter; no parameter name specified
	2593	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2594	//
[de62360d]	2595	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2596	// and functions versus pointers to arrays and functions.
[51b7345]	2597
	2598	abstract_parameter_declarator:
[4d51835]	2599	abstract_parameter_ptr
	2600	\| abstract_parameter_array attribute_list_opt
[1db21619]	2601	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2602	\| abstract_parameter_function attribute_list_opt
[1db21619]	2603	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2604	;
[51b7345]	2605
	2606	abstract_parameter_ptr:
[dd51906]	2607	ptrref_operator
[4d51835]	2608	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2609	\| ptrref_operator type_qualifier_list
[4d51835]	2610	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2611	\| ptrref_operator abstract_parameter_declarator
[4d51835]	2612	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2613	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[4d51835]	2614	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2615	\| '(' abstract_parameter_ptr ')'
	2616	{ $$ = $2; }
	2617	;
[51b7345]	2618
	2619	abstract_parameter_array:
[4d51835]	2620	array_parameter_dimension
	2621	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	2622	{ $$ = $2->addArray( $4 ); }
	2623	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	2624	{ $$ = $2->addArray( $4 ); }
	2625	\| '(' abstract_parameter_array ')' // redundant parenthesis
	2626	{ $$ = $2; }
	2627	;
[51b7345]	2628
	2629	abstract_parameter_function:
[4d51835]	2630	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2631	{ $$ = DeclarationNode::newFunction( 0, 0, $3, 0 ); }
	2632	\| '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2633	{ $$ = $2->addParamList( $6 ); }
	2634	\| '(' abstract_parameter_function ')' // redundant parenthesis
	2635	{ $$ = $2; }
	2636	;
[51b7345]	2637
	2638	array_parameter_dimension:
[4d51835]	2639	// Only the first dimension can be empty or have qualifiers.
	2640	array_parameter_1st_dimension
	2641	\| array_parameter_1st_dimension multi_array_dimension
	2642	{ $$ = $1->addArray( $2 ); }
	2643	\| multi_array_dimension
	2644	;
[51b7345]	2645
[c11e31c]	2646	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	2647	//
[de62360d]	2648	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	2649	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b7345]	2650
	2651	array_parameter_1st_dimension:
[2871210]	2652	'[' ']'
[4d51835]	2653	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
	2654	// multi_array_dimension handles the '[' '*' ']' case
	2655	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	2656	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2657	\| '[' push type_qualifier_list pop ']'
	2658	{ $$ = DeclarationNode::newArray( 0, $3, false ); }
	2659	// multi_array_dimension handles the '[' assignment_expression ']' case
	2660	\| '[' push type_qualifier_list assignment_expression pop ']'
	2661	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2662	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	2663	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	2664	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	2665	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
	2666	;
[b87a5ed]	2667
[de62360d]	2668	// This pattern parses a declaration of an abstract variable, i.e., there is no identifier to which the type applies,
	2669	// e.g.:
[c11e31c]	2670	//
[b87a5ed]	2671	// sizeof( int ); // abstract variable; no identifier name specified
[c11e31c]	2672	//
[de62360d]	2673	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2674	// and functions versus pointers to arrays and functions.
[51b7345]	2675
	2676	variable_abstract_declarator:
[4d51835]	2677	variable_abstract_ptr
	2678	\| variable_abstract_array attribute_list_opt
[1db21619]	2679	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2680	\| variable_abstract_function attribute_list_opt
[1db21619]	2681	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2682	;
[51b7345]	2683
	2684	variable_abstract_ptr:
[dd51906]	2685	ptrref_operator
[4d51835]	2686	{ $$ = DeclarationNode::newPointer( 0 ); }
[dd51906]	2687	\| ptrref_operator type_qualifier_list
[4d51835]	2688	{ $$ = DeclarationNode::newPointer( $2 ); }
[dd51906]	2689	\| ptrref_operator variable_abstract_declarator
[4d51835]	2690	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2691	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[4d51835]	2692	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2 ) ); }
	2693	\| '(' variable_abstract_ptr ')'
	2694	{ $$ = $2; }
	2695	;
[51b7345]	2696
	2697	variable_abstract_array:
[4d51835]	2698	array_dimension
	2699	\| '(' variable_abstract_ptr ')' array_dimension
	2700	{ $$ = $2->addArray( $4 ); }
	2701	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	2702	{ $$ = $2->addArray( $4 ); }
	2703	\| '(' variable_abstract_array ')' // redundant parenthesis
	2704	{ $$ = $2; }
	2705	;
[51b7345]	2706
	2707	variable_abstract_function:
[4d51835]	2708	'(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2709	{ $$ = $2->addParamList( $6 ); }
	2710	\| '(' variable_abstract_function ')' // redundant parenthesis
	2711	{ $$ = $2; }
	2712	;
[b87a5ed]	2713
[de62360d]	2714	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	2715	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	2716
	2717	new_identifier_parameter_declarator_tuple: // CFA
[4d51835]	2718	new_identifier_parameter_declarator_no_tuple
	2719	\| new_abstract_tuple
	2720	\| type_qualifier_list new_abstract_tuple
	2721	{ $$ = $2->addQualifiers( $1 ); }
	2722	;
[b87a5ed]	2723
	2724	new_identifier_parameter_declarator_no_tuple: // CFA
[4d51835]	2725	new_identifier_parameter_ptr
	2726	\| new_identifier_parameter_array
	2727	;
[b87a5ed]	2728
	2729	new_identifier_parameter_ptr: // CFA
[dd51906]	2730	ptrref_operator type_specifier
[4d51835]	2731	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2732	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2733	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2734	\| ptrref_operator new_abstract_function
[4d51835]	2735	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2736	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2737	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2738	\| ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2739	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2740	\| type_qualifier_list ptrref_operator new_identifier_parameter_declarator_tuple
[4d51835]	2741	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2742	;
[b87a5ed]	2743
	2744	new_identifier_parameter_array: // CFA
[de62360d]	2745	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	2746	// shift/reduce conflict with new-style empty (void) function return type.
[2871210]	2747	'[' ']' type_specifier
	2748	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2749	\| new_array_parameter_1st_dimension type_specifier
	2750	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2751	\| '[' ']' multi_array_dimension type_specifier
	2752	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2753	\| new_array_parameter_1st_dimension multi_array_dimension type_specifier
	2754	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2755	\| multi_array_dimension type_specifier
	2756	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2757	\| '[' ']' new_identifier_parameter_ptr
	2758	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2759	\| new_array_parameter_1st_dimension new_identifier_parameter_ptr
	2760	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2761	\| '[' ']' multi_array_dimension new_identifier_parameter_ptr
	2762	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2763	\| new_array_parameter_1st_dimension multi_array_dimension new_identifier_parameter_ptr
	2764	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
	2765	\| multi_array_dimension new_identifier_parameter_ptr
	2766	{ $$ = $2->addNewArray( $1 ); }
	2767	;
[51b7345]	2768
	2769	new_array_parameter_1st_dimension:
[4d51835]	2770	'[' push type_qualifier_list '*' pop ']' // remaining C99
	2771	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2772	\| '[' push type_qualifier_list assignment_expression pop ']'
	2773	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2774	\| '[' push declaration_qualifier_list assignment_expression pop ']'
	2775	// declaration_qualifier_list must be used because of shift/reduce conflict with
	2776	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	2777	// appear in this context.
	2778	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	2779	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	2780	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
	2781	;
[b87a5ed]	2782
[de62360d]	2783	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	2784	// identifier to which the type applies, e.g.:
[c11e31c]	2785	//
[b87a5ed]	2786	// [int] f( int ); // abstract variable parameter; no parameter name specified
	2787	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2788	//
	2789	// These rules need LR(3):
	2790	//
[2871210]	2791	// new_abstract_tuple identifier_or_type_name
	2792	// '[' new_parameter_list ']' identifier_or_type_name '(' new_parameter_type_list_opt ')'
[c11e31c]	2793	//
	2794	// since a function return type can be syntactically identical to a tuple type:
	2795	//
[b87a5ed]	2796	// [int, int] t;
	2797	// [int, int] f( int );
[c11e31c]	2798	//
[2871210]	2799	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[de62360d]	2800	// new_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	2801	// lookahead. To accomplish this, new_abstract_declarator has an entry point without tuple, and tuple declarations are
	2802	// duplicated when appearing with new_function_specifier.
[b87a5ed]	2803
	2804	new_abstract_declarator_tuple: // CFA
[4d51835]	2805	new_abstract_tuple
	2806	\| type_qualifier_list new_abstract_tuple
	2807	{ $$ = $2->addQualifiers( $1 ); }
	2808	\| new_abstract_declarator_no_tuple
	2809	;
[b87a5ed]	2810
	2811	new_abstract_declarator_no_tuple: // CFA
[4d51835]	2812	new_abstract_ptr
	2813	\| new_abstract_array
	2814	;
[b87a5ed]	2815
	2816	new_abstract_ptr: // CFA
[dd51906]	2817	ptrref_operator type_specifier
[4d51835]	2818	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2819	\| type_qualifier_list ptrref_operator type_specifier
[4d51835]	2820	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2821	\| ptrref_operator new_abstract_function
[4d51835]	2822	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2823	\| type_qualifier_list ptrref_operator new_abstract_function
[4d51835]	2824	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
[dd51906]	2825	\| ptrref_operator new_abstract_declarator_tuple
[4d51835]	2826	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0 ) ); }
[dd51906]	2827	\| type_qualifier_list ptrref_operator new_abstract_declarator_tuple
[4d51835]	2828	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1 ) ); }
	2829	;
[b87a5ed]	2830
	2831	new_abstract_array: // CFA
[de62360d]	2832	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	2833	// empty (void) function return type.
[2871210]	2834	'[' ']' type_specifier
	2835	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
	2836	\| '[' ']' multi_array_dimension type_specifier
	2837	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2838	\| multi_array_dimension type_specifier
	2839	{ $$ = $2->addNewArray( $1 ); }
[2871210]	2840	\| '[' ']' new_abstract_ptr
	2841	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
	2842	\| '[' ']' multi_array_dimension new_abstract_ptr
	2843	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[4d51835]	2844	\| multi_array_dimension new_abstract_ptr
	2845	{ $$ = $2->addNewArray( $1 ); }
	2846	;
[b87a5ed]	2847
	2848	new_abstract_tuple: // CFA
[4d51835]	2849	'[' push new_abstract_parameter_list pop ']'
	2850	{ $$ = DeclarationNode::newTuple( $3 ); }
	2851	;
[b87a5ed]	2852
	2853	new_abstract_function: // CFA
[2871210]	2854	'[' ']' '(' new_parameter_type_list_opt ')'
	2855	{ $$ = DeclarationNode::newFunction( 0, DeclarationNode::newTuple( 0 ), $4, 0 ); }
[4d51835]	2856	\| new_abstract_tuple '(' push new_parameter_type_list_opt pop ')'
	2857	{ $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); }
	2858	\| new_function_return '(' push new_parameter_type_list_opt pop ')'
	2859	{ $$ = DeclarationNode::newFunction( 0, $1, $4, 0 ); }
	2860	;
[b87a5ed]	2861
[de62360d]	2862	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	2863	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	2864	//
[de62360d]	2865	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	2866	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	2867	//
	2868	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	2869	// prototype-format parameter type declarators) is an obsolescent feature."
	2870	//
[de62360d]	2871	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	2872	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b7345]	2873
[c11e31c]	2874	//*********************** MISCELLANEOUS ******************************
[51b7345]	2875
[b87a5ed]	2876	comma_opt: // redundant comma
[4d51835]	2877	// empty
	2878	\| ','
	2879	;
[51b7345]	2880
	2881	assignment_opt:
[4d51835]	2882	// empty
	2883	{ $$ = 0; }
	2884	\| '=' assignment_expression
	2885	{ $$ = $2; }
	2886	;
[51b7345]	2887
	2888	%%
[c11e31c]	2889	// ----end of grammar----
[51b7345]	2890
[0da3e2c]	2891	extern char *yytext;
	2892
[5f2f2d7]	2893	void yyerror( const char * ) {
	2894	std::cout << "Error ";
[b87a5ed]	2895	if ( yyfilename ) {
[45161b4d]	2896	std::cout << "in file " << yyfilename << " ";
[5f2f2d7]	2897	} // if
[b1d6dd5]	2898	std::cout << "at line " << yylineno << " reading token \"" << (yytext[0] == '\0' ? "EOF" : yytext) << "\"" << std::endl;
[51b7345]	2899	}
	2900
[c11e31c]	2901	// Local Variables: //
[b87a5ed]	2902	// mode: c++ //
[de62360d]	2903	// tab-width: 4 //
[c11e31c]	2904	// compile-command: "make install" //
	2905	// End: //

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