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parser.yy@ 9b15e05

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Last change on this file since 9b15e05 was c0a33d2, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago
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[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	//
[9335ecc]	7	// parser.yy --
[974906e2]	8	//
[c11e31c]	9	// Author : Peter A. Buhr
	10	// Created On : Sat Sep 1 20:22:55 2001
[936e9f4]	11	// Last Modified By : Peter A. Buhr
[c0a33d2]	12	// Last Modified On : Thu May 24 16:49:58 2018
	13	// Update Count : 3367
[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)
[c0aa336]	34	// 2. attributes not allowed in parenthesis of declarator
[c11e31c]	35	//
[de62360d]	36	// All of the syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall
	37	// (CFA), which fixes several of C's outstanding problems and extends C with many modern language concepts. All of the
	38	// syntactic extensions for CFA C are marked with the comment "CFA". As noted above, there is one unreconcileable
	39	// parsing problem between C99 and CFA with respect to designators; this is discussed in detail before the "designation"
	40	// grammar rule.
[51b73452]	41
	42	%{
[b87a5ed]	43	#define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time
	44	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	45	#define YYERROR_VERBOSE // more information in syntax errors
[51b73452]	46
	47	#undef __GNUC_MINOR__
	48
	49	#include <cstdio>
	50	#include <stack>
[9ed4f94]	51	using namespace std;
	52
[51b73452]	53	#include "ParseNode.h"
[984dce6]	54	#include "TypedefTable.h"
[1db21619]	55	#include "TypeData.h"
[51b73452]	56	#include "LinkageSpec.h"
[9ed4f94]	57	#include "Common/SemanticError.h" // error_str
[513e165]	58	#include "Common/utility.h" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b73452]	59
[cbaee0d]	60	extern DeclarationNode * parseTree;
[8b7ee09]	61	extern LinkageSpec::Spec linkage;
[0da3e2c]	62	extern TypedefTable typedefTable;
	63
[2298f728]	64	stack< LinkageSpec::Spec > linkageStack;
[7bf7fb9]	65
[15697ff]	66	bool appendStr( string & to, string & from ) {
	67	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	68	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	69	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	70	// easier to let the C compiler handle this case.
	71	//
	72	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	73	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
	74	// i.e., u"a" U"b" L"c" is disallowed.
	75
	76	if ( from[0] != '"' ) { // encoding ?
	77	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	78	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	79	yyerror( "non-matching string encodings for string-literal concatenation" );
	80	return false; // parse error, must call YYERROR in action
[ea0c5e3]	81	} else if ( from[1] == '8' ) {
	82	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	83	} // if
	84	} else {
[ea0c5e3]	85	if ( from[1] == '8' ) { // move encoding to start
	86	to = "u8" + to;
	87	from.erase( 0, 1 ); // remove 2nd encoding
	88	} else {
	89	to = from[0] + to;
	90	} // if
[15697ff]	91	} // if
	92	from.erase( 0, 1 ); // remove 2nd encoding
	93	} // if
	94	to += " " + from; // concatenated into single string
	95	return true;
[7bf7fb9]	96	} // appendStr
[c0aa336]	97
	98	DeclarationNode * distAttr( DeclarationNode * specifier, DeclarationNode * declList ) {
	99	// distribute declaration_specifier across all declared variables, e.g., static, const, __attribute__.
	100	DeclarationNode * cur = declList, * cl = (new DeclarationNode)->addType( specifier );
	101	//cur->addType( specifier );
	102	for ( cur = dynamic_cast< DeclarationNode * >( cur->get_next() ); cur != nullptr; cur = dynamic_cast< DeclarationNode * >( cur->get_next() ) ) {
	103	cl->cloneBaseType( cur );
	104	} // for
	105	declList->addType( cl );
	106	// delete cl;
	107	return declList;
	108	} // distAttr
	109
	110	void distExt( DeclarationNode * declaration ) {
	111	// distribute EXTENSION across all declarations
	112	for ( DeclarationNode iter = declaration; iter != nullptr; iter = (DeclarationNode )iter->get_next() ) {
	113	iter->set_extension( true );
	114	} // for
	115	} // distExt
[fdca7c6]	116
[c38ae92]	117	// There is an ambiguity for inline generic-routine return-types and generic routines.
	118	// forall( otype T ) struct S { int i; } bar( T ) {}
	119	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	120	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e1]	121	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	122	// forall( otype T ) struct S { int T; };
	123	// forall( otype W ) bar( W ) {}
[c38ae92]	124
	125	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e1]	126	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	127	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	128	declSpec->type->aggregate.params = nullptr;
	129	} // if
	130	} // rebindForall
	131
[dc7db63]	132	NameExpr * build_postfix_name( const string * name ) {
	133	NameExpr * new_name = build_varref( new string( "?`" + *name ) );
	134	delete name;
	135	return new_name;
	136	} // build_postfix_name
	137
[9997fee]	138	bool forall = false, xxx = false; // aggregate have one or more forall qualifiers ?
[d48e529]	139
[201aeb9]	140	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	141	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	142	if ( N ) { \
	143	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	144	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	145	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	146	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	147	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	148	} else { \
	149	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	150	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	151	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	152	}
[51b73452]	153	%}
	154
[15697ff]	155	%define parse.error verbose
	156
[201aeb9]	157	// Types declaration for productions
[a67b60e]	158	%union
	159	{
	160	Token tok;
	161	ParseNode * pn;
	162	ExpressionNode * en;
	163	DeclarationNode * decl;
	164	DeclarationNode::Aggregate aggKey;
	165	DeclarationNode::TypeClass tclass;
	166	StatementNode * sn;
[135b431]	167	WaitForStmt * wfs;
[e612146c]	168	Expression * constant;
[936e9f4]	169	IfCtl * ifctl;
[a67b60e]	170	ForCtl * fctl;
	171	LabelNode * label;
	172	InitializerNode * in;
	173	OperKinds op;
	174	std::string * str;
	175	bool flag;
[307a732]	176	CatchStmt::Kind catch_kind;
[a67b60e]	177	}
	178
[c11e31c]	179	//*********************** TERMINAL TOKENS ******************************
[51b73452]	180
[c11e31c]	181	// keywords
[51b73452]	182	%token TYPEDEF
[a7c90d4]	183	%token EXTERN STATIC AUTO REGISTER
	184	%token THREADLOCAL // C11
	185	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	186	%token NORETURN // C11
[51b73452]	187	%token CONST VOLATILE
[b87a5ed]	188	%token RESTRICT // C99
[a7c90d4]	189	%token ATOMIC // C11
[51d6d6a]	190	%token FORALL MUTEX VIRTUAL // CFA
[72457b6]	191	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	192	%token BOOL COMPLEX IMAGINARY // C99
[201aeb9]	193	%token INT128 FLOAT80 FLOAT128 // GCC
[72457b6]	194	%token ZERO_T ONE_T // CFA
	195	%token VALIST // GCC
[b87a5ed]	196	%token TYPEOF LABEL // GCC
[51b73452]	197	%token ENUM STRUCT UNION
[c27fb59]	198	%token EXCEPTION // CFA
[d3bc0ad]	199	%token COROUTINE MONITOR THREAD // CFA
[a7c90d4]	200	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[5721a6d]	201	%token SIZEOF OFFSETOF
[b87a5ed]	202	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	203	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[114014c]	204	%token CHOOSE DISABLE ENABLE FALLTHRU FALLTHROUGH TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT WITH WHEN WAITFOR // CFA
[b87a5ed]	205	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	206	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	207
[c11e31c]	208	// names and constants: lexer differentiates between identifier and typedef names
[b87a5ed]	209	%token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname
[5b2edbc]	210	%token<tok> TIMEOUT WOR
[b87a5ed]	211	%token<tok> ATTR_IDENTIFIER ATTR_TYPEDEFname ATTR_TYPEGENname
[1b29996]	212	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	213	%token<tok> DIRECTIVE
[1b29996]	214	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	215	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	216	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	217	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	218
[c11e31c]	219	// multi-character operators
[b87a5ed]	220	%token ARROW // ->
	221	%token ICR DECR // ++ --
	222	%token LS RS // << >>
	223	%token LE GE EQ NE // <= >= == !=
	224	%token ANDAND OROR // && \|\|
	225	%token ELLIPSIS // ...
	226
[e5f2a67]	227	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	228	%token PLUSassign MINUSassign // += -=
	229	%token LSassign RSassign // <<= >>=
	230	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	231
[e7aed49]	232	%token ATassign // @=
[097e2b0]	233
[6165ce7]	234	%type<tok> identifier no_attr_identifier
[84d58c5]	235	%type<tok> identifier_or_type_name no_attr_identifier_or_type_name attr_name
[5b2edbc]	236	%type<tok> quasi_keyword
[ab57786]	237	%type<constant> string_literal
	238	%type<str> string_literal_list
[51b73452]	239
[c11e31c]	240	// expressions
[d1625f8]	241	%type<en> constant
[b87a5ed]	242	%type<en> tuple tuple_expression_list
[9706554]	243	%type<op> ptrref_operator unary_operator assignment_operator
[b87a5ed]	244	%type<en> primary_expression postfix_expression unary_expression
[994d080]	245	%type<en> cast_expression exponential_expression multiplicative_expression additive_expression
	246	%type<en> shift_expression relational_expression equality_expression
	247	%type<en> AND_expression exclusive_OR_expression inclusive_OR_expression
	248	%type<en> logical_AND_expression logical_OR_expression
	249	%type<en> conditional_expression constant_expression assignment_expression assignment_expression_opt
[b87a5ed]	250	%type<en> comma_expression comma_expression_opt
[994d080]	251	%type<en> argument_expression_list argument_expression default_initialize_opt
[936e9f4]	252	%type<ifctl> if_control_expression
[2f22cc4]	253	%type<fctl> for_control_expression
[51b73452]	254	%type<en> subrange
[c0aa336]	255	%type<decl> asm_name_opt
[7f5566b]	256	%type<en> asm_operands_opt asm_operands_list asm_operand
	257	%type<label> label_list
[d1625f8]	258	%type<en> asm_clobbers_list_opt
[7f5566b]	259	%type<flag> asm_volatile_opt
[cbce272]	260	%type<en> handler_predicate_opt
[51b73452]	261
[c11e31c]	262	// statements
[9bd6105]	263	%type<sn> statement labeled_statement compound_statement
	264	%type<sn> statement_decl statement_decl_list statement_list_nodecl
	265	%type<sn> selection_statement
[6a276a0]	266	%type<sn> switch_clause_list_opt switch_clause_list
[9bd6105]	267	%type<en> case_value
	268	%type<sn> case_clause case_value_list case_label case_label_list
[8b47e50]	269	%type<sn> iteration_statement jump_statement
[9bd6105]	270	%type<sn> expression_statement asm_statement
[c453ac4]	271	%type<sn> with_statement
	272	%type<en> with_clause_opt
[51d6d6a]	273	%type<sn> exception_statement handler_clause finally_clause
	274	%type<catch_kind> handler_key
[b6b3c42]	275	%type<sn> mutex_statement
[9bd6105]	276	%type<en> when_clause when_clause_opt waitfor timeout
[135b431]	277	%type<sn> waitfor_statement
[51d6d6a]	278	%type<wfs> waitfor_clause
[51b73452]	279
[c11e31c]	280	// declarations
[c0aa336]	281	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
	282	%type<decl> abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension
	283	%type<decl> abstract_parameter_declaration
[51b73452]	284
	285	%type<aggKey> aggregate_key
[d0ffed1]	286	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	287
[9997fee]	288	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	289
	290	%type<en> bit_subrange_size_opt bit_subrange_size
	291
[84d58c5]	292	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[51b73452]	293
[4040425]	294	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	295
	296	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	297	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	298
[d0ffed1]	299	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	300
[d0ffed1]	301	%type<decl> enumerator_list enum_type enum_type_nobody
[51b73452]	302	%type<en> enumerator_value_opt
	303
	304	%type<decl> exception_declaration external_definition external_definition_list external_definition_list_opt
	305
[7fdb94e1]	306	%type<decl> field_declaration field_declaration_list_opt field_declarator_opt field_declaring_list
[df22130]	307	%type<en> field field_list field_name fraction_constants_opt
[51b73452]	308
[4d51835]	309	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	310
[d3bc0ad]	311	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	312	%type<decl> identifier_list
[51b73452]	313
[c0aa336]	314	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	315	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	316	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	317
[c0aa336]	318	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	319
[c0aa336]	320	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list
	321	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	322
[c0aa336]	323	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	324	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	325
[2a8427c6]	326	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_type_list_opt
[51b73452]	327
[c0aa336]	328	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	329
[b9be000b]	330	%type<decl> c_declaration static_assert
[c0aa336]	331	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
	332	%type<decl> KR_declaration_list KR_declaration_list_opt
[51b73452]	333
[2a8427c6]	334	%type<decl> parameter_declaration parameter_list parameter_type_list_opt
[51b73452]	335
[2871210]	336	%type<decl> paren_identifier paren_type
[51b73452]	337
[0da3e2c]	338	%type<decl> storage_class storage_class_list
[51b73452]	339
[d0ffed1]	340	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	341
	342	%type<tclass> type_class
	343	%type<decl> type_declarator type_declarator_name type_declaring_list
	344
[84d58c5]	345	%type<decl> type_declaration_specifier type_type_specifier type_name typegen_name
	346	%type<decl> typedef typedef_declaration typedef_expression
[c0aa336]	347
	348	%type<decl> variable_type_redeclarator type_ptr type_array type_function
	349
	350	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	351
[84d58c5]	352	%type<decl> type type_no_function
	353	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	354
[84d58c5]	355	%type<en> type_list
[51b73452]	356
[a16a7ec]	357	%type<decl> type_qualifier type_qualifier_name forall type_qualifier_list_opt type_qualifier_list
[d3bc0ad]	358	%type<decl> type_specifier type_specifier_nobody
[51b73452]	359
[c0aa336]	360	%type<decl> variable_declarator variable_ptr variable_array variable_function
	361	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	362
[44a81853]	363	%type<decl> attribute_list_opt attribute_list attribute_name_list attribute attribute_name
[1db21619]	364
[c11e31c]	365	// initializers
[7fdb94e1]	366	%type<in> initializer initializer_list_opt initializer_opt
[51b73452]	367
[c11e31c]	368	// designators
[51b73452]	369	%type<en> designator designator_list designation
	370
	371
[65d6de4]	372	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	373	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	374	// if ( C ) S1 else S2
	375	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	376	// Similar issues exit with the waitfor statement.
[51b73452]	377
[1efa1e1]	378	// Order of these lines matters (low-to-high precedence). THEN is left associative over WOR/TIMEOUT/ELSE, WOR is left
	379	// associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[5b2edbc]	380	%precedence THEN // rule precedence for IF/WAITFOR statement
	381	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	382	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	383	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
[51b73452]	384
[65d6de4]	385	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	386	// forall( otype T ) struct Foo { T v; };
	387	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	388	// Foo ( *fp )( int );
	389	// `---' matches start of TYPEGENname '('
	390	// Must be:
[a16a7ec]	391	// Foo( int ) ( *fp )( int );
[65d6de4]	392
	393	// Order of these lines matters (low-to-high precedence).
	394	%precedence TYPEGENname
	395	%precedence '('
	396
[f38e7d7]	397	%locations // support location tracking for error messages
[930f69e]	398
[b87a5ed]	399	%start translation_unit // parse-tree root
[51b73452]	400
	401	%%
[c11e31c]	402	//*********************** Namespace Management ******************************
	403
[de62360d]	404	// The grammar in the ANSI C standard is not strictly context-free, since it relies upon the distinct terminal symbols
[930f69e]	405	// "identifier", "TYPEDEFname", and "TYPEGENname" that are lexically identical. While it is possible to write a purely
	406	// context-free grammar, such a grammar would obscure the relationship between syntactic and semantic constructs.
	407	// Hence, this grammar uses the ANSI style.
[c11e31c]	408	//
[de62360d]	409	// Cforall compounds this problem by introducing type names local to the scope of a declaration (for instance, those
[9059213]	410	// introduced through "forall" qualifiers), and by introducing "type generators" -- parameterized types. This latter
[de62360d]	411	// type name creates a third class of identifiers that must be distinguished by the scanner.
[c11e31c]	412	//
[de62360d]	413	// Since the scanner cannot distinguish among the different classes of identifiers without some context information, it
[9059213]	414	// accesses a data structure (TypedefTable) to allow classification of an identifier that it has just read. Semantic
	415	// actions during the parser update this data structure when the class of identifiers change.
[c11e31c]	416	//
[7fdb94e1]	417	// Because the Cforall language is block-scoped, an identifier can change its class in a local scope; it must revert to
	418	// its original class at the end of the block. Since type names can be local to a particular declaration, each
	419	// declaration is itself a scope. This requires distinguishing between type names that are local to the current
	420	// declaration scope and those that persist past the end of the declaration (i.e., names defined in "typedef" or "otype"
	421	// declarations).
[c11e31c]	422	//
[7fdb94e1]	423	// The non-terminals "push" and "pop" denote the opening and closing of scopes. Every push must have a matching pop,
	424	// although it is regrettable the matching pairs do not always occur within the same rule. These non-terminals may
	425	// appear in more contexts than strictly necessary from a semantic point of view.
[51b73452]	426
	427	push:
[ab57786]	428	{ typedefTable.enterScope(); }
[4d51835]	429	;
[51b73452]	430
	431	pop:
[ab57786]	432	{ typedefTable.leaveScope(); }
[4d51835]	433	;
[51b73452]	434
[c11e31c]	435	//*********************** CONSTANTS ******************************
[51b73452]	436
	437	constant:
[de62360d]	438	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[ab57786]	439	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); }
[930f69e]	440	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	441	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
[ab57786]	442	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	443	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); }
[4d51835]	444	;
[51b73452]	445
[5b2edbc]	446	quasi_keyword: // CFA
	447	TIMEOUT
	448	\| WOR
	449	;
	450
[51b73452]	451	identifier:
[4d51835]	452	IDENTIFIER
	453	\| ATTR_IDENTIFIER // CFA
[5b2edbc]	454	\| quasi_keyword
[4d51835]	455	;
[51b73452]	456
	457	no_attr_identifier:
[4d51835]	458	IDENTIFIER
[5b2edbc]	459	\| quasi_keyword
[4d51835]	460	;
[51b73452]	461
[ab57786]	462	string_literal:
	463	string_literal_list { $$ = build_constantStr( *$1 ); }
	464	;
	465
[b87a5ed]	466	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	467	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	468	\| string_literal_list STRINGliteral
	469	{
[15697ff]	470	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	471	delete $2; // allocated by lexer
[ab57786]	472	$$ = $1; // conversion from tok to str
[7bf7fb9]	473	}
[4d51835]	474	;
[51b73452]	475
[c11e31c]	476	//*********************** EXPRESSIONS ******************************
[51b73452]	477
	478	primary_expression:
[4d51835]	479	IDENTIFIER // typedef name cannot be used as a variable name
[d1625f8]	480	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[5b2edbc]	481	\| quasi_keyword
	482	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[1b29996]	483	\| tuple
[4d51835]	484	\| '(' comma_expression ')'
	485	{ $$ = $2; }
	486	\| '(' compound_statement ')' // GCC, lambda expression
[513e165]	487	{ $$ = new ExpressionNode( new StmtExpr( dynamic_cast< CompoundStmt * >(maybeMoveBuild< Statement >($2) ) ) ); }
[7e419e7]	488	\| constant '`' IDENTIFIER // CFA, postfix call
[dc7db63]	489	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), $1 ) ); }
[7e419e7]	490	\| string_literal '`' IDENTIFIER // CFA, postfix call
[dc7db63]	491	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), new ExpressionNode( $1 ) ) ); }
[7e419e7]	492	\| IDENTIFIER '`' IDENTIFIER // CFA, postfix call
[dc7db63]	493	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), new ExpressionNode( build_varref( $1 ) ) ) ); }
[7e419e7]	494	\| tuple '`' IDENTIFIER // CFA, postfix call
[dc7db63]	495	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $3 ) ), $1 ) ); }
[7e419e7]	496	\| '(' comma_expression ')' '`' IDENTIFIER // CFA, postfix call
[dc7db63]	497	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_postfix_name( $5 ) ), $2 ) ); }
[84d58c5]	498	\| type_name '.' no_attr_identifier // CFA, nested type
[7fdb94e1]	499	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
	500	\| type_name '.' '[' field_list ']' // CFA, nested type / tuple field selector
	501	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	502	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[fae90d5f]	503	{ SemanticError( yylloc, "_Generic is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	504	;
	505
	506	generic_assoc_list: // C11
	507	\| generic_association
	508	\| generic_assoc_list ',' generic_association
	509	;
	510
	511	generic_association: // C11
	512	type_no_function ':' assignment_expression
	513	\| DEFAULT ':' assignment_expression
[4d51835]	514	;
[51b73452]	515
	516	postfix_expression:
[4d51835]	517	primary_expression
[7fdb94e1]	518	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	519	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	520	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	521	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	522	// equivalent to the old x[i,j].
[7fdb94e1]	523	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $3 ) ); }
[bd3d9e4]	524	\| postfix_expression '{' argument_expression_list '}' // CFA, constructor call
	525	{
	526	Token fn;
	527	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
	528	$$ = new ExpressionNode( new ConstructorExpr( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) ) );
	529	}
[4d51835]	530	\| postfix_expression '(' argument_expression_list ')'
[d1625f8]	531	{ $$ = new ExpressionNode( build_func( $1, $3 ) ); }
[4d51835]	532	\| postfix_expression '.' no_attr_identifier
[d1625f8]	533	{ $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); }
[df22130]	534	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
	535	{ $$ = new ExpressionNode( build_fieldSel( $1, build_constantInteger( *$3 ) ) ); }
[930f69e]	536	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
	537	{ $$ = new ExpressionNode( build_fieldSel( $1, build_field_name_FLOATING_FRACTIONconstant( *$2 ) ) ); }
[7fdb94e1]	538	\| postfix_expression '.' '[' field_list ']' // CFA, tuple field selector
	539	{ $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); }
[4d51835]	540	\| postfix_expression ARROW no_attr_identifier
[861799c7]	541	{
	542	$$ = new ExpressionNode( build_pfieldSel( $1, $3 == "0" \|\| $3 == "1" ? build_constantInteger( *$3 ) : build_varref( $3 ) ) );
	543	}
	544	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
	545	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_constantInteger( *$3 ) ) ); }
[7fdb94e1]	546	\| postfix_expression ARROW '[' field_list ']' // CFA, tuple field selector
	547	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); }
[4d51835]	548	\| postfix_expression ICR
[d1625f8]	549	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); }
[4d51835]	550	\| postfix_expression DECR
[d1625f8]	551	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	552	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[d1625f8]	553	{ $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	554	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[f810e09]	555	{ $$ = new ExpressionNode( build_compoundLiteral( $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[ecb27a7]	556	\| '^' primary_expression '{' argument_expression_list '}' // CFA
[097e2b0]	557	{
[9706554]	558	Token fn;
[ecb27a7]	559	fn.str = new string( "^?{}" ); // location undefined
	560	$$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) );
[097e2b0]	561	}
[4d51835]	562	;
[51b73452]	563
	564	argument_expression_list:
[4d51835]	565	argument_expression
	566	\| argument_expression_list ',' argument_expression
[1d4580a]	567	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	568	;
[51b73452]	569
	570	argument_expression:
[4d51835]	571	// empty
[738e304]	572	{ $$ = nullptr; }
	573	// \| '@' // use default argument
	574	// { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); }
[4d51835]	575	\| assignment_expression
	576	;
[b87a5ed]	577
	578	field_list: // CFA, tuple field selector
[4d51835]	579	field
[1d4580a]	580	\| field_list ',' field { $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	581	;
[b87a5ed]	582
	583	field: // CFA, tuple field selector
[faddbd8]	584	field_name
[930f69e]	585	\| FLOATING_DECIMALconstant field
	586	{ $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), maybeMoveBuild<Expression>( $2 ) ) ); }
[7fdb94e1]	587	\| FLOATING_DECIMALconstant '[' field_list ']'
	588	{ $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), build_tuple( $3 ) ) ); }
[faddbd8]	589	\| field_name '.' field
[bf32bb8]	590	{ $$ = new ExpressionNode( build_fieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); }
[7fdb94e1]	591	\| field_name '.' '[' field_list ']'
	592	{ $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); }
[faddbd8]	593	\| field_name ARROW field
[bf32bb8]	594	{ $$ = new ExpressionNode( build_pfieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); }
[7fdb94e1]	595	\| field_name ARROW '[' field_list ']'
	596	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); }
[4d51835]	597	;
[51b73452]	598
[faddbd8]	599	field_name:
[df22130]	600	INTEGERconstant fraction_constants_opt
[8780e30]	601	{ $$ = new ExpressionNode( build_field_name_fraction_constants( build_constantInteger( *$1 ), $2 ) ); }
[df22130]	602	\| FLOATINGconstant fraction_constants_opt
[8780e30]	603	{ $$ = new ExpressionNode( build_field_name_fraction_constants( build_field_name_FLOATINGconstant( *$1 ), $2 ) ); }
[df22130]	604	\| no_attr_identifier fraction_constants_opt
[4cb935e]	605	{
[84d58c5]	606	$$ = new ExpressionNode( build_field_name_fraction_constants( build_varref( $1 ), $2 ) );
	607	}
[1b29996]	608	;
	609
[df22130]	610	fraction_constants_opt:
[1b29996]	611	// empty
[8780e30]	612	{ $$ = nullptr; }
[df22130]	613	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	614	{
[930f69e]	615	Expression * constant = build_field_name_FLOATING_FRACTIONconstant( *$2 );
[8780e30]	616	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( $1, constant ) ) : new ExpressionNode( constant );
	617	}
[faddbd8]	618	;
	619
[51b73452]	620	unary_expression:
[4d51835]	621	postfix_expression
[c6b1105]	622	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	623	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	624	\| constant
	625	{ $$ = $1; }
[ab57786]	626	\| string_literal
[d1625f8]	627	{ $$ = new ExpressionNode( $1 ); }
[4d51835]	628	\| EXTENSION cast_expression // GCC
[e04ef3a]	629	{ $$ = $2->set_extension( true ); }
[c6b1105]	630	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	631	// { * X; } // dereference X
	632	// { * int X; } // CFA declaration of pointer to int
[51e076e]	633	\| ptrref_operator cast_expression // CFA
[9706554]	634	{
	635	switch ( $1 ) {
[d9e2280]	636	case OperKinds::AddressOf:
[db70fe4]	637	$$ = new ExpressionNode( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) );
[9706554]	638	break;
[d9e2280]	639	case OperKinds::PointTo:
[d1625f8]	640	$$ = new ExpressionNode( build_unary_val( $1, $2 ) );
[9706554]	641	break;
[5809461]	642	case OperKinds::And:
[db70fe4]	643	$$ = new ExpressionNode( new AddressExpr( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) ) );
[5809461]	644	break;
[9706554]	645	default:
	646	assert( false );
	647	}
	648	}
[4d51835]	649	\| unary_operator cast_expression
[d1625f8]	650	{ $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); }
[dd51906]	651	\| ICR unary_expression
[d1625f8]	652	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); }
[dd51906]	653	\| DECR unary_expression
[d1625f8]	654	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); }
[4d51835]	655	\| SIZEOF unary_expression
[db70fe4]	656	{ $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuild< Expression >( $2 ) ) ); }
[84d58c5]	657	\| SIZEOF '(' type_no_function ')'
[db70fe4]	658	{ $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	659	\| ALIGNOF unary_expression // GCC, variable alignment
[db70fe4]	660	{ $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuild< Expression >( $2 ) ) ); }
[a2e0687]	661	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[db70fe4]	662	{ $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuildType( $3 ) ) ); }
[84d58c5]	663	\| OFFSETOF '(' type_no_function ',' no_attr_identifier ')'
[d1625f8]	664	{ $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); }
[4d51835]	665	\| ATTR_IDENTIFIER
[db70fe4]	666	{ $$ = new ExpressionNode( new AttrExpr( build_varref( $1 ), maybeMoveBuild< Expression >( (ExpressionNode *)nullptr ) ) ); }
[4d51835]	667	\| ATTR_IDENTIFIER '(' argument_expression ')'
[db70fe4]	668	{ $$ = new ExpressionNode( new AttrExpr( build_varref( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[84d58c5]	669	\| ATTR_IDENTIFIER '(' type ')'
[db70fe4]	670	{ $$ = new ExpressionNode( new AttrExpr( build_varref( $1 ), maybeMoveBuildType( $3 ) ) ); }
[4d51835]	671	;
[51b73452]	672
[dd51906]	673	ptrref_operator:
[d9e2280]	674	'*' { $$ = OperKinds::PointTo; }
	675	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	676	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	677	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	678	;
	679
[51b73452]	680	unary_operator:
[d9e2280]	681	'+' { $$ = OperKinds::UnPlus; }
	682	\| '-' { $$ = OperKinds::UnMinus; }
	683	\| '!' { $$ = OperKinds::Neg; }
	684	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	685	;
[51b73452]	686
	687	cast_expression:
[4d51835]	688	unary_expression
[84d58c5]	689	\| '(' type_no_function ')' cast_expression
[d1625f8]	690	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[fae90d5f]	691	\| '(' COROUTINE '&' ')' cast_expression // CFA
[9a705dc8]	692	{ $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Coroutine, $5 ) ); }
[fae90d5f]	693	\| '(' THREAD '&' ')' cast_expression // CFA
[9a705dc8]	694	{ $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Thread, $5 ) ); }
[fae90d5f]	695	\| '(' MONITOR '&' ')' cast_expression // CFA
[9a705dc8]	696	{ $$ = new ExpressionNode( build_keyword_cast( KeywordCastExpr::Monitor, $5 ) ); }
[72457b6]	697	// VIRTUAL cannot be opt because of look ahead issues
[fae90d5f]	698	\| '(' VIRTUAL ')' cast_expression // CFA
[513e165]	699	{ $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $4 ), maybeMoveBuildType( nullptr ) ) ); }
[fae90d5f]	700	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[513e165]	701	{ $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $5 ), maybeMoveBuildType( $3 ) ) ); }
[84d58c5]	702	// \| '(' type_no_function ')' tuple
[1b29996]	703	// { $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	704	;
[51b73452]	705
[994d080]	706	exponential_expression:
[4d51835]	707	cast_expression
[994d080]	708	\| exponential_expression '\\' cast_expression
[e5f2a67]	709	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Exp, $1, $3 ) ); }
[994d080]	710	;
	711
	712	multiplicative_expression:
	713	exponential_expression
	714	\| multiplicative_expression '*' exponential_expression
[d1625f8]	715	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); }
[994d080]	716	\| multiplicative_expression '/' exponential_expression
[d1625f8]	717	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); }
[994d080]	718	\| multiplicative_expression '%' exponential_expression
[d1625f8]	719	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); }
[4d51835]	720	;
[51b73452]	721
	722	additive_expression:
[4d51835]	723	multiplicative_expression
	724	\| additive_expression '+' multiplicative_expression
[d1625f8]	725	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); }
[4d51835]	726	\| additive_expression '-' multiplicative_expression
[d1625f8]	727	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); }
[4d51835]	728	;
[51b73452]	729
	730	shift_expression:
[4d51835]	731	additive_expression
	732	\| shift_expression LS additive_expression
[d1625f8]	733	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); }
[4d51835]	734	\| shift_expression RS additive_expression
[d1625f8]	735	{ $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); }
[4d51835]	736	;
[51b73452]	737
	738	relational_expression:
[4d51835]	739	shift_expression
	740	\| relational_expression '<' shift_expression
[d1625f8]	741	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); }
[4d51835]	742	\| relational_expression '>' shift_expression
[d1625f8]	743	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); }
[4d51835]	744	\| relational_expression LE shift_expression
[d1625f8]	745	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	746	\| relational_expression GE shift_expression
[d1625f8]	747	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	748	;
[51b73452]	749
	750	equality_expression:
[4d51835]	751	relational_expression
	752	\| equality_expression EQ relational_expression
[d1625f8]	753	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); }
[4d51835]	754	\| equality_expression NE relational_expression
[d1625f8]	755	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); }
[4d51835]	756	;
[51b73452]	757
	758	AND_expression:
[4d51835]	759	equality_expression
	760	\| AND_expression '&' equality_expression
[d1625f8]	761	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	762	;
[51b73452]	763
	764	exclusive_OR_expression:
[4d51835]	765	AND_expression
	766	\| exclusive_OR_expression '^' AND_expression
[d1625f8]	767	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); }
[4d51835]	768	;
[51b73452]	769
	770	inclusive_OR_expression:
[4d51835]	771	exclusive_OR_expression
	772	\| inclusive_OR_expression '\|' exclusive_OR_expression
[d1625f8]	773	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	774	;
[51b73452]	775
	776	logical_AND_expression:
[4d51835]	777	inclusive_OR_expression
	778	\| logical_AND_expression ANDAND inclusive_OR_expression
[d1625f8]	779	{ $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); }
[4d51835]	780	;
[51b73452]	781
	782	logical_OR_expression:
[4d51835]	783	logical_AND_expression
	784	\| logical_OR_expression OROR logical_AND_expression
[d1625f8]	785	{ $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); }
[4d51835]	786	;
[51b73452]	787
	788	conditional_expression:
[4d51835]	789	logical_OR_expression
	790	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[d1625f8]	791	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[fae90d5f]	792	// FIX ME: computes $1 twice
[4d51835]	793	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[d1625f8]	794	{ $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); }
[4d51835]	795	;
[51b73452]	796
	797	constant_expression:
[4d51835]	798	conditional_expression
	799	;
[51b73452]	800
	801	assignment_expression:
[4d51835]	802	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	803	conditional_expression
	804	\| unary_expression assignment_operator assignment_expression
[cda7889]	805	{ $$ = new ExpressionNode( build_binary_val( $2, $1, $3 ) ); }
[7fdb94e1]	806	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	807	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	808	;
[51b73452]	809
	810	assignment_expression_opt:
[4d51835]	811	// empty
[d1625f8]	812	{ $$ = nullptr; }
[4d51835]	813	\| assignment_expression
	814	;
[b87a5ed]	815
[9706554]	816	assignment_operator:
[d9e2280]	817	'=' { $$ = OperKinds::Assign; }
[a839867]	818	\| ATassign { $$ = OperKinds::AtAssn; }
[e5f2a67]	819	\| EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	820	\| MULTassign { $$ = OperKinds::MulAssn; }
	821	\| DIVassign { $$ = OperKinds::DivAssn; }
	822	\| MODassign { $$ = OperKinds::ModAssn; }
	823	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	824	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	825	\| LSassign { $$ = OperKinds::LSAssn; }
	826	\| RSassign { $$ = OperKinds::RSAssn; }
	827	\| ANDassign { $$ = OperKinds::AndAssn; }
	828	\| ERassign { $$ = OperKinds::ERAssn; }
	829	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	830	;
[9706554]	831
[b87a5ed]	832	tuple: // CFA, tuple
[de62360d]	833	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	834	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	835	// '[' ']'
	836	// { $$ = new ExpressionNode( build_tuple() ); }
	837	// '[' push assignment_expression pop ']'
	838	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[c0a33d2]	839	'[' push ',' tuple_expression_list pop ']'
	840	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $4 ) ) ); }
	841	\| '[' push assignment_expression ',' tuple_expression_list pop ']'
	842	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)$3->set_last( $5 ) ) ); }
[4d51835]	843	;
[51b73452]	844
	845	tuple_expression_list:
[4d51835]	846	assignment_expression_opt
	847	\| tuple_expression_list ',' assignment_expression_opt
[1d4580a]	848	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	849	;
[51b73452]	850
	851	comma_expression:
[4d51835]	852	assignment_expression
[9706554]	853	\| comma_expression ',' assignment_expression
[513e165]	854	{ $$ = new ExpressionNode( new CommaExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	855	;
[51b73452]	856
	857	comma_expression_opt:
[4d51835]	858	// empty
[58dd019]	859	{ $$ = nullptr; }
[4d51835]	860	\| comma_expression
	861	;
[51b73452]	862
[c11e31c]	863	//************************* STATEMENTS *****************************
[51b73452]	864
	865	statement:
[4d51835]	866	labeled_statement
	867	\| compound_statement
[c0a33d2]	868	\| expression_statement
[4d51835]	869	\| selection_statement
	870	\| iteration_statement
	871	\| jump_statement
[8b47e50]	872	\| with_statement
[b6b3c42]	873	\| mutex_statement
[5b2edbc]	874	\| waitfor_statement
[4d51835]	875	\| exception_statement
[2a8427c6]	876	\| enable_disable_statement
[fae90d5f]	877	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	878	\| asm_statement
[61fc4f6]	879	\| DIRECTIVE
[6d539f83]	880	{ $$ = new StatementNode( build_directive( $1 ) ); }
[b9be000b]	881	;
[51b73452]	882
	883	labeled_statement:
[44a81853]	884	// labels cannot be identifiers 0 or 1 or ATTR_IDENTIFIER
	885	identifier_or_type_name ':' attribute_list_opt statement
[1db21619]	886	{
[44a81853]	887	$$ = $4->add_label( $1, $3 );
[1db21619]	888	}
[4d51835]	889	;
[51b73452]	890
	891	compound_statement:
[4d51835]	892	'{' '}'
[e82aa9df]	893	{ $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); }
[4d51835]	894	\| '{'
[de62360d]	895	// Two scopes are necessary because the block itself has a scope, but every declaration within the block also
[3a2128f]	896	// requires its own scope.
[4d51835]	897	push push
[51b1202]	898	local_label_declaration_opt // GCC, local labels
[9bd6105]	899	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	900	pop '}'
[e82aa9df]	901	{ $$ = new StatementNode( build_compound( $5 ) ); }
[4d51835]	902	;
[b87a5ed]	903
[9bd6105]	904	statement_decl_list: // C99
	905	statement_decl
	906	\| statement_decl_list push statement_decl
[1d4580a]	907	{ if ( $1 != 0 ) { $1->set_last( $3 ); $$ = $1; } }
[4d51835]	908	;
[51b73452]	909
[9bd6105]	910	statement_decl:
[4d51835]	911	declaration // CFA, new & old style declarations
[e82aa9df]	912	{ $$ = new StatementNode( $1 ); }
[4d51835]	913	\| EXTENSION declaration // GCC
[c0aa336]	914	{
	915	distExt( $2 );
[e82aa9df]	916	$$ = new StatementNode( $2 );
[8e9cbb2]	917	}
[4d51835]	918	\| function_definition
[e82aa9df]	919	{ $$ = new StatementNode( $1 ); }
[c0aa336]	920	\| EXTENSION function_definition // GCC
	921	{
	922	distExt( $2 );
	923	$$ = new StatementNode( $2 );
	924	}
[4d51835]	925	\| statement pop
	926	;
[51b73452]	927
[9bd6105]	928	statement_list_nodecl:
[4d51835]	929	statement
[9bd6105]	930	\| statement_list_nodecl statement
[1d4580a]	931	{ if ( $1 != 0 ) { $1->set_last( $2 ); $$ = $1; } }
[4d51835]	932	;
[51b73452]	933
	934	expression_statement:
[4d51835]	935	comma_expression_opt ';'
[e82aa9df]	936	{ $$ = new StatementNode( build_expr( $1 ) ); }
[4d51835]	937	;
[51b73452]	938
	939	selection_statement:
[51d6d6a]	940	IF '(' push if_control_expression ')' statement %prec THEN
[4d51835]	941	// explicitly deal with the shift/reduce conflict on if/else
[6d49ea3]	942	{ $$ = new StatementNode( build_if( $4, $6, nullptr ) ); }
	943	\| IF '(' push if_control_expression ')' statement ELSE statement
	944	{ $$ = new StatementNode( build_if( $4, $6, $8 ) ); }
[4cc585b]	945	\| SWITCH '(' comma_expression ')' case_clause
[6a276a0]	946	{ $$ = new StatementNode( build_switch( true, $3, $5 ) ); }
[4d51835]	947	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
[4e06c1e]	948	{
[6a276a0]	949	StatementNode *sw = new StatementNode( build_switch( true, $3, $8 ) );
[4e06c1e]	950	// The semantics of the declaration list is changed to include associated initialization, which is performed
	951	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	952	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	953	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	954	// statement.
[a7741435]	955	$$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	956	}
[4d51835]	957	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[6a276a0]	958	{ $$ = new StatementNode( build_switch( false, $3, $5 ) ); }
	959	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt '}' // CFA
[4e06c1e]	960	{
[6a276a0]	961	StatementNode *sw = new StatementNode( build_switch( false, $3, $8 ) );
[a7741435]	962	$$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	963	}
[4d51835]	964	;
[b87a5ed]	965
[936e9f4]	966	if_control_expression:
[6d49ea3]	967	comma_expression pop
[936e9f4]	968	{ $$ = new IfCtl( nullptr, $1 ); }
[4cc585b]	969	\| c_declaration pop // no semi-colon
[936e9f4]	970	{ $$ = new IfCtl( $1, nullptr ); }
[4cc585b]	971	\| cfa_declaration pop // no semi-colon
[936e9f4]	972	{ $$ = new IfCtl( $1, nullptr ); }
[6d49ea3]	973	\| declaration comma_expression // semi-colon separated
[936e9f4]	974	{ $$ = new IfCtl( $1, $2 ); }
	975	;
	976
[de62360d]	977	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	978	// clause allows a list of values and subranges.
[b87a5ed]	979
	980	case_value: // CFA
[4d51835]	981	constant_expression { $$ = $1; }
	982	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[db70fe4]	983	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	984	\| subrange // CFA, subrange
	985	;
[b87a5ed]	986
	987	case_value_list: // CFA
[e82aa9df]	988	case_value { $$ = new StatementNode( build_case( $1 ) ); }
[064e3ff]	989	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[e82aa9df]	990	\| case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); }
[4d51835]	991	;
[b87a5ed]	992
	993	case_label: // CFA
[8688ce1]	994	CASE case_value_list ':' { $$ = $2; }
[e82aa9df]	995	\| DEFAULT ':' { $$ = new StatementNode( build_default() ); }
[4d51835]	996	// A semantic check is required to ensure only one default clause per switch/choose statement.
	997	;
[b87a5ed]	998
[6a276a0]	999	//label_list_opt:
	1000	// // empty
	1001	// \| identifier_or_type_name ':'
	1002	// \| label_list_opt identifier_or_type_name ':'
	1003	// ;
	1004
[b87a5ed]	1005	case_label_list: // CFA
[4d51835]	1006	case_label
[1d4580a]	1007	\| case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); }
[4d51835]	1008	;
[b87a5ed]	1009
	1010	case_clause: // CFA
[e82aa9df]	1011	case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	1012	;
[b87a5ed]	1013
	1014	switch_clause_list_opt: // CFA
[4d51835]	1015	// empty
[58dd019]	1016	{ $$ = nullptr; }
[4d51835]	1017	\| switch_clause_list
	1018	;
[b87a5ed]	1019
	1020	switch_clause_list: // CFA
[9bd6105]	1021	case_label_list statement_list_nodecl
[e82aa9df]	1022	{ $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[9bd6105]	1023	\| switch_clause_list case_label_list statement_list_nodecl
[e82aa9df]	1024	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); }
[4d51835]	1025	;
[b87a5ed]	1026
[51b73452]	1027	iteration_statement:
[4d51835]	1028	WHILE '(' comma_expression ')' statement
[e82aa9df]	1029	{ $$ = new StatementNode( build_while( $3, $5 ) ); }
[4d51835]	1030	\| DO statement WHILE '(' comma_expression ')' ';'
[5b639ee]	1031	{ $$ = new StatementNode( build_while( $5, $2, true ) ); }
[4d51835]	1032	\| FOR '(' push for_control_expression ')' statement
[e82aa9df]	1033	{ $$ = new StatementNode( build_for( $4, $6 ) ); }
[4d51835]	1034	;
[51b73452]	1035
	1036	for_control_expression:
[4d51835]	1037	comma_expression_opt pop ';' comma_expression_opt ';' comma_expression_opt
[2f22cc4]	1038	{ $$ = new ForCtl( $1, $4, $6 ); }
[4d51835]	1039	\| declaration comma_expression_opt ';' comma_expression_opt // C99
[2f22cc4]	1040	{ $$ = new ForCtl( $1, $2, $4 ); }
[d1625f8]	1041	;
[51b73452]	1042
	1043	jump_statement:
[44a81853]	1044	GOTO identifier_or_type_name ';'
[ab57786]	1045	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); }
[4d51835]	1046	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1047	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1048	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1049	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1050	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
	1051	\| fall_through_name ';' // CFA
	1052	{ $$ = new StatementNode( build_branch( BranchStmt::FallThrough ) ); }
	1053	\| fall_through_name identifier_or_type_name ';' // CFA
	1054	{ $$ = new StatementNode( build_branch( $2, BranchStmt::FallThrough ) ); }
	1055	\| fall_through_name DEFAULT ';' // CFA
	1056	{ $$ = new StatementNode( build_branch( BranchStmt::FallThroughDefault ) ); }
[4d51835]	1057	\| CONTINUE ';'
[de62360d]	1058	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	1059	{ $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); }
[44a81853]	1060	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1061	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1062	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	1063	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); }
[4d51835]	1064	\| BREAK ';'
[de62360d]	1065	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	1066	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); }
[44a81853]	1067	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1068	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1069	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	1070	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); }
[4d51835]	1071	\| RETURN comma_expression_opt ';'
[e82aa9df]	1072	{ $$ = new StatementNode( build_return( $2 ) ); }
[7fdb94e1]	1073	\| RETURN '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1074	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[8cc5cb0]	1075	\| THROW assignment_expression_opt ';' // handles rethrow
[e82aa9df]	1076	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	1077	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[daf1af8]	1078	{ $$ = new StatementNode( build_resume( $2 ) ); }
[8cc5cb0]	1079	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1080	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1081	;
[51b73452]	1082
[6a276a0]	1083	fall_through_name: // CFA
	1084	FALLTHRU
	1085	\| FALLTHROUGH
	1086	;
	1087
[8b47e50]	1088	with_statement:
[5b2edbc]	1089	WITH '(' tuple_expression_list ')' statement
[a378ca7]	1090	{
	1091	$$ = new StatementNode( build_with( $3, $5 ) );
	1092	}
[5b2edbc]	1093	;
	1094
[b6b3c42]	1095	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so change syntax to "with mutex".
	1096	mutex_statement:
	1097	MUTEX '(' argument_expression_list ')' statement
[fae90d5f]	1098	{ SemanticError( yylloc, "Mutex statement is currently unimplemented." ); $$ = nullptr; }
[b6b3c42]	1099	;
	1100
[51d6d6a]	1101	when_clause:
[6a276a0]	1102	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1103	;
	1104
[5b2edbc]	1105	when_clause_opt:
	1106	// empty
[135b431]	1107	{ $$ = nullptr; }
[51d6d6a]	1108	\| when_clause
[5b2edbc]	1109	;
	1110
	1111	waitfor:
	1112	WAITFOR '(' identifier ')'
[135b431]	1113	{
	1114	$$ = new ExpressionNode( new NameExpr( *$3 ) );
	1115	delete $3;
	1116	}
[5b2edbc]	1117	\| WAITFOR '(' identifier ',' argument_expression_list ')'
[135b431]	1118	{
	1119	$$ = new ExpressionNode( new NameExpr( *$3 ) );
	1120	$$->set_last( $5 );
	1121	delete $3;
	1122	}
[5b2edbc]	1123	;
	1124
	1125	timeout:
[6a276a0]	1126	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1127	;
	1128
	1129	waitfor_clause:
[51d6d6a]	1130	when_clause_opt waitfor statement %prec THEN
[135b431]	1131	{ $$ = build_waitfor( $2, $3, $1 ); }
[5b2edbc]	1132	\| when_clause_opt waitfor statement WOR waitfor_clause
[135b431]	1133	{ $$ = build_waitfor( $2, $3, $1, $5 ); }
[51d6d6a]	1134	\| when_clause_opt timeout statement %prec THEN
[135b431]	1135	{ $$ = build_waitfor_timeout( $2, $3, $1 ); }
[5b2edbc]	1136	\| when_clause_opt ELSE statement
[135b431]	1137	{ $$ = build_waitfor_timeout( nullptr, $3, $1 ); }
[51d6d6a]	1138	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
	1139	\| when_clause_opt timeout statement WOR when_clause ELSE statement
[135b431]	1140	{ $$ = build_waitfor_timeout( $2, $3, $1, $7, $5 ); }
[5b2edbc]	1141	;
	1142
	1143	waitfor_statement:
[51d6d6a]	1144	when_clause_opt waitfor statement %prec THEN
[135b431]	1145	{ $$ = new StatementNode( build_waitfor( $2, $3, $1 ) ); }
[5b2edbc]	1146	\| when_clause_opt waitfor statement WOR waitfor_clause
[135b431]	1147	{ $$ = new StatementNode( build_waitfor( $2, $3, $1, $5 ) ); }
[8b47e50]	1148	;
	1149
[51b73452]	1150	exception_statement:
[cfaabe2c]	1151	TRY compound_statement handler_clause
[e82aa9df]	1152	{ $$ = new StatementNode( build_try( $2, $3, 0 ) ); }
[4d51835]	1153	\| TRY compound_statement finally_clause
[e82aa9df]	1154	{ $$ = new StatementNode( build_try( $2, 0, $3 ) ); }
[cfaabe2c]	1155	\| TRY compound_statement handler_clause finally_clause
[e82aa9df]	1156	{ $$ = new StatementNode( build_try( $2, $3, $4 ) ); }
[4d51835]	1157	;
[51b73452]	1158
	1159	handler_clause:
[cbce272]	1160	handler_key '(' push push exception_declaration pop handler_predicate_opt ')' compound_statement pop
	1161	{ $$ = new StatementNode( build_catch( $1, $5, $7, $9 ) ); }
[dc2b4d6]	1162	\| handler_clause handler_key '(' push push exception_declaration pop handler_predicate_opt ')' compound_statement pop
[cbce272]	1163	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $2, $6, $8, $10 ) ) ); }
[994d080]	1164	;
	1165
	1166	handler_predicate_opt:
[7fdb94e1]	1167	// empty
[cbce272]	1168	{ $$ = nullptr; }
[6a276a0]	1169	\| ';' conditional_expression { $$ = $2; }
[307a732]	1170	;
	1171
	1172	handler_key:
[6a276a0]	1173	CATCH { $$ = CatchStmt::Terminate; }
	1174	\| CATCHRESUME { $$ = CatchStmt::Resume; }
[4d51835]	1175	;
[51b73452]	1176
	1177	finally_clause:
[6a276a0]	1178	FINALLY compound_statement { $$ = new StatementNode( build_finally( $2 ) ); }
[4d51835]	1179	;
[51b73452]	1180
	1181	exception_declaration:
[d0ffed1]	1182	// No SUE declaration in parameter list.
	1183	type_specifier_nobody
	1184	\| type_specifier_nobody declarator
[c0a33d2]	1185	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1186	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1187	{ $$ = $2->addType( $1 ); }
[c0aa336]	1188	\| cfa_abstract_declarator_tuple no_attr_identifier // CFA
[c0a33d2]	1189	{ $$ = $1->addName( $2 ); }
[c0aa336]	1190	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1191	;
[51b73452]	1192
[2a8427c6]	1193	enable_disable_statement:
	1194	enable_disable_key identifier_list compound_statement
	1195	;
	1196
	1197	enable_disable_key:
	1198	ENABLE
	1199	\| DISABLE
	1200	;
	1201
[51b73452]	1202	asm_statement:
[ab57786]	1203	ASM asm_volatile_opt '(' string_literal ')' ';'
[6d539f83]	1204	{ $$ = new StatementNode( build_asm( $2, $4, 0 ) ); }
[ab57786]	1205	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[6d539f83]	1206	{ $$ = new StatementNode( build_asm( $2, $4, $6 ) ); }
[ab57786]	1207	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[6d539f83]	1208	{ $$ = new StatementNode( build_asm( $2, $4, $6, $8 ) ); }
[ab57786]	1209	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[6d539f83]	1210	{ $$ = new StatementNode( build_asm( $2, $4, $6, $8, $10 ) ); }
[ab57786]	1211	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[6d539f83]	1212	{ $$ = new StatementNode( build_asm( $2, $5, 0, $8, $10, $12 ) ); }
[7f5566b]	1213	;
	1214
	1215	asm_volatile_opt: // GCC
	1216	// empty
	1217	{ $$ = false; }
	1218	\| VOLATILE
	1219	{ $$ = true; }
[4d51835]	1220	;
[b87a5ed]	1221
	1222	asm_operands_opt: // GCC
[4d51835]	1223	// empty
[58dd019]	1224	{ $$ = nullptr; } // use default argument
[4d51835]	1225	\| asm_operands_list
	1226	;
[b87a5ed]	1227
	1228	asm_operands_list: // GCC
[4d51835]	1229	asm_operand
	1230	\| asm_operands_list ',' asm_operand
[1d4580a]	1231	{ $$ = (ExpressionNode *)$1->set_last( $3 ); }
[4d51835]	1232	;
[b87a5ed]	1233
	1234	asm_operand: // GCC
[ab57786]	1235	string_literal '(' constant_expression ')'
[513e165]	1236	{ $$ = new ExpressionNode( new AsmExpr( maybeMoveBuild< Expression >( (ExpressionNode *)nullptr ), $1, maybeMoveBuild< Expression >( $3 ) ) ); }
[ab57786]	1237	\| '[' constant_expression ']' string_literal '(' constant_expression ')'
[513e165]	1238	{ $$ = new ExpressionNode( new AsmExpr( maybeMoveBuild< Expression >( $2 ), $4, maybeMoveBuild< Expression >( $6 ) ) ); }
[7f5566b]	1239	;
	1240
[4e06c1e]	1241	asm_clobbers_list_opt: // GCC
[7f5566b]	1242	// empty
[58dd019]	1243	{ $$ = nullptr; } // use default argument
[ab57786]	1244	\| string_literal
[d1625f8]	1245	{ $$ = new ExpressionNode( $1 ); }
[ab57786]	1246	\| asm_clobbers_list_opt ',' string_literal
[513e165]	1247	// set_last returns ParseNode *
[e82aa9df]	1248	{ $$ = (ExpressionNode *)$1->set_last( new ExpressionNode( $3 ) ); }
[4d51835]	1249	;
[b87a5ed]	1250
[7f5566b]	1251	label_list:
	1252	no_attr_identifier
[ab57786]	1253	{
	1254	$$ = new LabelNode(); $$->labels.push_back( *$1 );
	1255	delete $1; // allocated by lexer
	1256	}
[7f5566b]	1257	\| label_list ',' no_attr_identifier
[ab57786]	1258	{
	1259	$$ = $1; $1->labels.push_back( *$3 );
	1260	delete $3; // allocated by lexer
	1261	}
[4d51835]	1262	;
[51b73452]	1263
[c11e31c]	1264	//***************************** DECLARATIONS *******************************
[51b73452]	1265
[b87a5ed]	1266	declaration_list_opt: // used at beginning of switch statement
[4d51835]	1267	pop
[58dd019]	1268	{ $$ = nullptr; }
[4d51835]	1269	\| declaration_list
	1270	;
[51b73452]	1271
	1272	declaration_list:
[4d51835]	1273	declaration
	1274	\| declaration_list push declaration
	1275	{ $$ = $1->appendList( $3 ); }
	1276	;
[51b73452]	1277
[c0aa336]	1278	KR_declaration_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1279	// empty
[58dd019]	1280	{ $$ = nullptr; }
[c0aa336]	1281	\| KR_declaration_list
[4d51835]	1282	;
[51b73452]	1283
[c0aa336]	1284	KR_declaration_list:
[4cc585b]	1285	push c_declaration pop ';'
	1286	{ $$ = $2; }
	1287	\| KR_declaration_list push c_declaration pop ';'
[4d51835]	1288	{ $$ = $1->appendList( $3 ); }
	1289	;
[b87a5ed]	1290
[51b1202]	1291	local_label_declaration_opt: // GCC, local label
[4d51835]	1292	// empty
[51b1202]	1293	\| local_label_declaration_list
[4d51835]	1294	;
[b87a5ed]	1295
[51b1202]	1296	local_label_declaration_list: // GCC, local label
	1297	LABEL local_label_list ';'
	1298	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1299	;
[b87a5ed]	1300
[51b1202]	1301	local_label_list: // GCC, local label
[c0a33d2]	1302	no_attr_identifier_or_type_name
	1303	\| local_label_list ',' no_attr_identifier_or_type_name
[4d51835]	1304	;
[b87a5ed]	1305
[936e9f4]	1306	declaration: // old & new style declarations
[4cc585b]	1307	c_declaration pop ';'
	1308	\| cfa_declaration pop ';' // CFA
[b9be000b]	1309	\| static_assert
[4d51835]	1310	;
[b87a5ed]	1311
[b9be000b]	1312	static_assert:
	1313	STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11
[f6e3e34]	1314	{ $$ = DeclarationNode::newStaticAssert( $3, $5 ); }
[b9be000b]	1315
[de62360d]	1316	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1317	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1318	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1319	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1320	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1321	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1322	//
[b87a5ed]	1323	// CFA C
	1324	// [10] int x; int x[10]; // array of 10 integers
	1325	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1326
[c0aa336]	1327	cfa_declaration: // CFA
[4cc585b]	1328	cfa_variable_declaration
	1329	\| cfa_typedef_declaration
	1330	\| cfa_function_declaration
	1331	\| type_declaring_list
	1332	\| trait_specifier
[4d51835]	1333	;
[b87a5ed]	1334
[c0aa336]	1335	cfa_variable_declaration: // CFA
	1336	cfa_variable_specifier initializer_opt
[7fdb94e1]	1337	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	1338	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	1339	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	1340	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	1341	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	1342	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[7fdb94e1]	1343	{ $$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	1344	;
[b87a5ed]	1345
[c0aa336]	1346	cfa_variable_specifier: // CFA
[de62360d]	1347	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1348	// storage-class
[c0aa336]	1349	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	1350	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	1351	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	1352	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	1353	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	1354	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[4d51835]	1355	;
[b87a5ed]	1356
[c0aa336]	1357	cfa_function_declaration: // CFA
	1358	cfa_function_specifier
[7fdb94e1]	1359	{ $$ = $1; }
[c0aa336]	1360	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	1361	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	1362	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	1363	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	1364	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	1365	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
	1366	\| cfa_function_declaration ',' identifier_or_type_name '(' cfa_parameter_type_list_opt ')'
[4d51835]	1367	{
[481115f]	1368	// Append the return type at the start (left-hand-side) to each identifier in the list.
	1369	DeclarationNode * ret = new DeclarationNode;
	1370	ret->type = maybeClone( $1->type->base );
[7fdb94e1]	1371	$$ = $1->appendList( DeclarationNode::newFunction( $3, ret, $5, nullptr ) );
[4d51835]	1372	}
	1373	;
[b87a5ed]	1374
[c0aa336]	1375	cfa_function_specifier: // CFA
	1376	// '[' ']' identifier_or_type_name '(' push cfa_parameter_type_list_opt pop ')' // S/R conflict
[1b29996]	1377	// {
	1378	// $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
	1379	// }
[c0aa336]	1380	// '[' ']' identifier '(' push cfa_parameter_type_list_opt pop ')'
[2871210]	1381	// {
	1382	// typedefTable.setNextIdentifier( *$5 );
	1383	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1384	// }
[c0aa336]	1385	// \| '[' ']' TYPEDEFname '(' push cfa_parameter_type_list_opt pop ')'
[2871210]	1386	// {
	1387	// typedefTable.setNextIdentifier( *$5 );
	1388	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1389	// }
	1390	// \| '[' ']' typegen_name
	1391	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	1392	//
[c0aa336]	1393	// '[' ']' identifier_or_type_name '(' cfa_parameter_type_list_opt ')'
[4d51835]	1394	// '[' ']' type_specifier
	1395	//
[2871210]	1396	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	1397	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[c0a33d2]	1398	cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_type_list_opt pop ')'
[c0aa336]	1399	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[c0a33d2]	1400	{ $$ = DeclarationNode::newFunction( $2, $1, $5, 0 ); }
	1401	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_type_list_opt pop ')'
	1402	{ $$ = DeclarationNode::newFunction( $2, $1, $5, 0 ); }
[4d51835]	1403	;
[b87a5ed]	1404
[c0aa336]	1405	cfa_function_return: // CFA
[c0a33d2]	1406	'[' push cfa_parameter_list pop ']'
	1407	{ $$ = DeclarationNode::newTuple( $3 ); }
	1408	\| '[' push cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ']'
[c0aa336]	1409	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the
[de62360d]	1410	// ']'.
[c0a33d2]	1411	{ $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
[4d51835]	1412	;
[b87a5ed]	1413
[c0aa336]	1414	cfa_typedef_declaration: // CFA
	1415	TYPEDEF cfa_variable_specifier
[4d51835]	1416	{
[2f0a0678]	1417	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname );
[4d51835]	1418	$$ = $2->addTypedef();
	1419	}
[c0aa336]	1420	\| TYPEDEF cfa_function_specifier
[4d51835]	1421	{
[2f0a0678]	1422	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname );
[4d51835]	1423	$$ = $2->addTypedef();
	1424	}
[c0aa336]	1425	\| cfa_typedef_declaration pop ',' push no_attr_identifier
[4d51835]	1426	{
[2f0a0678]	1427	typedefTable.addToEnclosingScope( *$5, TYPEDEFname );
[4d51835]	1428	$$ = $1->appendList( $1->cloneType( $5 ) );
	1429	}
	1430	;
[b87a5ed]	1431
[de62360d]	1432	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	1433	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	1434
	1435	typedef_declaration:
[4d51835]	1436	TYPEDEF type_specifier declarator
	1437	{
[2f0a0678]	1438	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname );
[4d51835]	1439	$$ = $3->addType( $2 )->addTypedef();
	1440	}
	1441	\| typedef_declaration pop ',' push declarator
	1442	{
[2f0a0678]	1443	typedefTable.addToEnclosingScope( *$5->name, TYPEDEFname );
[4d51835]	1444	$$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
	1445	}
[de62360d]	1446	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[4d51835]	1447	{
[2f0a0678]	1448	typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname );
[4d51835]	1449	$$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
	1450	}
	1451	\| type_specifier TYPEDEF declarator
	1452	{
[2f0a0678]	1453	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname );
[4d51835]	1454	$$ = $3->addType( $1 )->addTypedef();
	1455	}
	1456	\| type_specifier TYPEDEF type_qualifier_list declarator
	1457	{
[2f0a0678]	1458	typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname );
[de62360d]	1459	$$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
[4d51835]	1460	}
	1461	;
[b87a5ed]	1462
[721f17a]	1463	typedef_expression:
	1464	// GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[4d51835]	1465	TYPEDEF no_attr_identifier '=' assignment_expression
	1466	{
[7fdb94e1]	1467	// $$ = DeclarationNode::newName( 0 ); // unimplemented
	1468	SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr;
[4d51835]	1469	}
	1470	\| typedef_expression pop ',' push no_attr_identifier '=' assignment_expression
	1471	{
[7fdb94e1]	1472	// $$ = DeclarationNode::newName( 0 ); // unimplemented
	1473	SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr;
[4d51835]	1474	}
	1475	;
[51b73452]	1476
[c0aa336]	1477	//c_declaration:
	1478	// declaring_list pop ';'
	1479	// \| typedef_declaration pop ';'
	1480	// \| typedef_expression pop ';' // GCC, naming expression type
	1481	// \| sue_declaration_specifier pop ';'
	1482	// ;
	1483	//
	1484	//declaring_list:
	1485	// // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1486	// // storage-class
	1487	// declarator asm_name_opt initializer_opt
	1488	// {
[2f0a0678]	1489	// typedefTable.addToEnclosingScope( IDENTIFIER );
[c0aa336]	1490	// $$ = ( $2->addType( $1 ))->addAsmName( $3 )->addInitializer( $4 );
	1491	// }
	1492	// \| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
	1493	// {
[2f0a0678]	1494	// typedefTable.addToEnclosingScope( IDENTIFIER );
[c0aa336]	1495	// $$ = $1->appendList( $1->cloneBaseType( $4->addAsmName( $5 )->addInitializer( $6 ) ) );
	1496	// }
	1497	// ;
	1498
	1499	c_declaration:
[4cc585b]	1500	declaration_specifier declaring_list
[7fdb94e1]	1501	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	1502	\| typedef_declaration
	1503	\| typedef_expression // GCC, naming expression type
	1504	\| sue_declaration_specifier
[4d51835]	1505	;
[51b73452]	1506
	1507	declaring_list:
[de62360d]	1508	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1509	// storage-class
[c0aa336]	1510	declarator asm_name_opt initializer_opt
[7fdb94e1]	1511	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[4d51835]	1512	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[7fdb94e1]	1513	{ $$ = $1->appendList( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	1514	;
[b87a5ed]	1515
	1516	declaration_specifier: // type specifier + storage class
[4d51835]	1517	basic_declaration_specifier
	1518	\| sue_declaration_specifier
[84d58c5]	1519	\| type_declaration_specifier
[4d51835]	1520	;
[b87a5ed]	1521
[d0ffed1]	1522	declaration_specifier_nobody: // type specifier + storage class - {...}
	1523	// Preclude SUE declarations in restricted scopes:
	1524	//
	1525	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	1526	//
	1527	// because it is impossible to call f due to name equivalence.
	1528	basic_declaration_specifier
	1529	\| sue_declaration_specifier_nobody
[84d58c5]	1530	\| type_declaration_specifier
[d0ffed1]	1531	;
	1532
	1533	type_specifier: // type specifier
[4d51835]	1534	basic_type_specifier
	1535	\| sue_type_specifier
[84d58c5]	1536	\| type_type_specifier
[4d51835]	1537	;
[b87a5ed]	1538
[d0ffed1]	1539	type_specifier_nobody: // type specifier - {...}
	1540	// Preclude SUE declarations in restricted scopes:
	1541	//
	1542	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	1543	//
	1544	// because it is impossible to call f due to name equivalence.
	1545	basic_type_specifier
	1546	\| sue_type_specifier_nobody
[84d58c5]	1547	\| type_type_specifier
[d0ffed1]	1548	;
	1549
[b87a5ed]	1550	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	1551	// empty
[58dd019]	1552	{ $$ = nullptr; }
[4d51835]	1553	\| type_qualifier_list
	1554	;
[51b73452]	1555
	1556	type_qualifier_list:
[de62360d]	1557	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	1558	//
[de62360d]	1559	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	1560	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	1561	// appeared only once.
[4d51835]	1562	type_qualifier
	1563	\| type_qualifier_list type_qualifier
	1564	{ $$ = $1->addQualifiers( $2 ); }
	1565	;
[51b73452]	1566
	1567	type_qualifier:
[4d51835]	1568	type_qualifier_name
	1569	\| attribute
	1570	;
[51b73452]	1571
	1572	type_qualifier_name:
[4d51835]	1573	CONST
[738e304]	1574	{ $$ = DeclarationNode::newTypeQualifier( Type::Const ); }
[4d51835]	1575	\| RESTRICT
[738e304]	1576	{ $$ = DeclarationNode::newTypeQualifier( Type::Restrict ); }
[4d51835]	1577	\| VOLATILE
[738e304]	1578	{ $$ = DeclarationNode::newTypeQualifier( Type::Volatile ); }
[4d51835]	1579	\| ATOMIC
[738e304]	1580	{ $$ = DeclarationNode::newTypeQualifier( Type::Atomic ); }
[a16a7ec]	1581	\| forall
	1582	;
	1583
	1584	forall:
[c0a33d2]	1585	FORALL '(' push type_parameter_list pop ')' // CFA
	1586	{ $$ = DeclarationNode::newForall( $4 ); }
[4d51835]	1587	;
[51b73452]	1588
	1589	declaration_qualifier_list:
[4d51835]	1590	storage_class_list
[de62360d]	1591	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	1592	{ $$ = $1->addQualifiers( $2 ); }
	1593	\| declaration_qualifier_list type_qualifier_list storage_class_list
	1594	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1595	;
[51b73452]	1596
	1597	storage_class_list:
[de62360d]	1598	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	1599	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	1600	//
[de62360d]	1601	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	1602	// specifiers in a declaration.
[4d51835]	1603	storage_class
	1604	\| storage_class_list storage_class
	1605	{ $$ = $1->addQualifiers( $2 ); }
	1606	;
[51b73452]	1607
	1608	storage_class:
[4d51835]	1609	EXTERN
[68fe077a]	1610	{ $$ = DeclarationNode::newStorageClass( Type::Extern ); }
[4d51835]	1611	\| STATIC
[68fe077a]	1612	{ $$ = DeclarationNode::newStorageClass( Type::Static ); }
[4d51835]	1613	\| AUTO
[68fe077a]	1614	{ $$ = DeclarationNode::newStorageClass( Type::Auto ); }
[4d51835]	1615	\| REGISTER
[68fe077a]	1616	{ $$ = DeclarationNode::newStorageClass( Type::Register ); }
[dd020c0]	1617	\| THREADLOCAL // C11
[68fe077a]	1618	{ $$ = DeclarationNode::newStorageClass( Type::Threadlocal ); }
[dd020c0]	1619	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	1620	\| INLINE // C99
[ddfd945]	1621	{ $$ = DeclarationNode::newFuncSpecifier( Type::Inline ); }
[4d51835]	1622	\| FORTRAN // C99
[ddfd945]	1623	{ $$ = DeclarationNode::newFuncSpecifier( Type::Fortran ); }
[68cd1ce]	1624	\| NORETURN // C11
[ddfd945]	1625	{ $$ = DeclarationNode::newFuncSpecifier( Type::Noreturn ); }
[4d51835]	1626	;
[51b73452]	1627
	1628	basic_type_name:
[201aeb9]	1629	VOID
[4d51835]	1630	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1631	\| BOOL // C99
	1632	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
[201aeb9]	1633	\| CHAR
	1634	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
	1635	\| INT
	1636	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
	1637	\| INT128
	1638	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int128 ); }
	1639	\| FLOAT
	1640	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
	1641	\| FLOAT80
	1642	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float80 ); }
	1643	\| FLOAT128
	1644	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float128 ); }
	1645	\| DOUBLE
	1646	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
[4d51835]	1647	\| COMPLEX // C99
[5b639ee]	1648	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); }
[4d51835]	1649	\| IMAGINARY // C99
[5b639ee]	1650	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); }
[201aeb9]	1651	\| SIGNED
	1652	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); }
	1653	\| UNSIGNED
	1654	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); }
	1655	\| SHORT
	1656	{ $$ = DeclarationNode::newLength( DeclarationNode::Short ); }
	1657	\| LONG
	1658	{ $$ = DeclarationNode::newLength( DeclarationNode::Long ); }
[72457b6]	1659	\| VALIST // GCC, __builtin_va_list
	1660	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); }
[4d51835]	1661	;
[51b73452]	1662
	1663	basic_declaration_specifier:
[4d51835]	1664	// A semantic check is necessary for conflicting storage classes.
	1665	basic_type_specifier
	1666	\| declaration_qualifier_list basic_type_specifier
	1667	{ $$ = $2->addQualifiers( $1 ); }
	1668	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1669	{ $$ = $1->addQualifiers( $2 ); }
	1670	\| basic_declaration_specifier storage_class type_qualifier_list
	1671	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1672	\| basic_declaration_specifier storage_class basic_type_specifier
	1673	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	1674	;
[51b73452]	1675
	1676	basic_type_specifier:
[84d58c5]	1677	direct_type
[f38e7d7]	1678	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	1679	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	1680	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	1681	;
[51b73452]	1682
[84d58c5]	1683	direct_type:
[4d51835]	1684	basic_type_name
	1685	\| type_qualifier_list basic_type_name
	1686	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	1687	\| direct_type type_qualifier
[4d51835]	1688	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	1689	\| direct_type basic_type_name
[4d51835]	1690	{ $$ = $1->addType( $2 ); }
	1691	;
[51b73452]	1692
[84d58c5]	1693	indirect_type:
	1694	TYPEOF '(' type ')' // GCC: typeof(x) y;
[4d51835]	1695	{ $$ = $3; }
	1696	\| TYPEOF '(' comma_expression ')' // GCC: typeof(a+b) y;
	1697	{ $$ = DeclarationNode::newTypeof( $3 ); }
[84d58c5]	1698	\| ATTR_TYPEGENname '(' type ')' // CFA: e.g., @type(x) y;
[4d51835]	1699	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
	1700	\| ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type(a+b) y;
	1701	{ $$ = DeclarationNode::newAttr( $1, $3 ); }
[f38e7d7]	1702	\| ZERO_T // CFA
	1703	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Zero ); }
	1704	\| ONE_T // CFA
	1705	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::One ); }
[4d51835]	1706	;
[51b73452]	1707
[d0ffed1]	1708	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	1709	sue_type_specifier
	1710	\| declaration_qualifier_list sue_type_specifier
	1711	{ $$ = $2->addQualifiers( $1 ); }
	1712	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1713	{ $$ = $1->addQualifiers( $2 ); }
	1714	\| sue_declaration_specifier storage_class type_qualifier_list
	1715	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1716	;
[51b73452]	1717
[d0ffed1]	1718	sue_type_specifier: // struct, union, enum + type specifier
	1719	elaborated_type
[fdca7c6]	1720	\| type_qualifier_list
	1721	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	1722	elaborated_type
	1723	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	1724	\| sue_type_specifier type_qualifier
	1725	{ $$ = $1->addQualifiers( $2 ); }
	1726	;
[51b73452]	1727
[d0ffed1]	1728	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	1729	sue_type_specifier_nobody
	1730	\| declaration_qualifier_list sue_type_specifier_nobody
	1731	{ $$ = $2->addQualifiers( $1 ); }
	1732	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	1733	{ $$ = $1->addQualifiers( $2 ); }
	1734	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	1735	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1736	;
	1737
	1738	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	1739	elaborated_type_nobody
	1740	\| type_qualifier_list elaborated_type_nobody
	1741	{ $$ = $2->addQualifiers( $1 ); }
	1742	\| sue_type_specifier_nobody type_qualifier
	1743	{ $$ = $1->addQualifiers( $2 ); }
	1744	;
	1745
[84d58c5]	1746	type_declaration_specifier:
	1747	type_type_specifier
	1748	\| declaration_qualifier_list type_type_specifier
[4d51835]	1749	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	1750	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	1751	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	1752	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	1753	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1754	;
[b87a5ed]	1755
[84d58c5]	1756	type_type_specifier: // typedef types
	1757	type_name
	1758	\| type_qualifier_list type_name
	1759	{ $$ = $2->addQualifiers( $1 ); }
	1760	\| type_type_specifier type_qualifier
	1761	{ $$ = $1->addQualifiers( $2 ); }
	1762	;
	1763
	1764	type_name:
[4d51835]	1765	TYPEDEFname
	1766	{ $$ = DeclarationNode::newFromTypedef( $1 ); }
[84d58c5]	1767	\| '.' TYPEDEFname
	1768	{ $$ = DeclarationNode::newFromTypedef( $2 ); } // FIX ME
	1769	\| type_name '.' TYPEDEFname
	1770	{ $$ = DeclarationNode::newFromTypedef( $3 ); } // FIX ME
	1771	\| typegen_name
	1772	\| '.' typegen_name
	1773	{ $$ = $2; } // FIX ME
	1774	\| type_name '.' typegen_name
	1775	{ $$ = $3; } // FIX ME
	1776	;
	1777
	1778	typegen_name: // CFA
[65d6de4]	1779	TYPEGENname
	1780	{ $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); }
	1781	\| TYPEGENname '(' ')'
[67cf18c]	1782	{ $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); }
	1783	\| TYPEGENname '(' type_list ')'
[84d58c5]	1784	{ $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
[4d51835]	1785	;
[51b73452]	1786
[d0ffed1]	1787	elaborated_type: // struct, union, enum
[c0aa336]	1788	aggregate_type
	1789	\| enum_type
[4d51835]	1790	;
[51b73452]	1791
[d0ffed1]	1792	elaborated_type_nobody: // struct, union, enum - {...}
	1793	aggregate_type_nobody
	1794	\| enum_type_nobody
	1795	;
	1796
	1797	aggregate_type: // struct, union
[7fdb94e1]	1798	aggregate_key attribute_list_opt '{' field_declaration_list_opt '}'
[6f95000]	1799	{ $$ = DeclarationNode::newAggregate( $1, new string( DeclarationNode::anonymous.newName() ), nullptr, $4, true )->addQualifiers( $2 ); }
[c0aa336]	1800	\| aggregate_key attribute_list_opt no_attr_identifier_or_type_name
[fdca7c6]	1801	{
	1802	typedefTable.makeTypedef( *$3 ); // create typedef
[2f0a0678]	1803	if ( forall ) typedefTable.changeKind( *$3, TYPEGENname ); // possibly update
[fdca7c6]	1804	forall = false; // reset
	1805	}
[7fdb94e1]	1806	'{' field_declaration_list_opt '}'
[c0aa336]	1807	{ $$ = DeclarationNode::newAggregate( $1, $3, nullptr, $6, true )->addQualifiers( $2 ); }
[7fdb94e1]	1808	\| aggregate_key attribute_list_opt '(' type_list ')' '{' field_declaration_list_opt '}' // CFA
[6f95000]	1809	{ $$ = DeclarationNode::newAggregate( $1, new string( DeclarationNode::anonymous.newName() ), $4, $7, false )->addQualifiers( $2 ); }
[d0ffed1]	1810	\| aggregate_type_nobody
	1811	;
	1812
	1813	aggregate_type_nobody: // struct, union - {...}
[84d58c5]	1814	aggregate_key attribute_list_opt no_attr_identifier
	1815	{
	1816	typedefTable.makeTypedef( *$3 );
[2f0a0678]	1817	if ( forall ) typedefTable.changeKind( *$3, TYPEGENname ); // possibly update
[9997fee]	1818	forall = false; // reset
[84d58c5]	1819	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	1820	}
	1821	\| aggregate_key attribute_list_opt TYPEDEFname
[d0ffed1]	1822	{
	1823	typedefTable.makeTypedef( *$3 );
	1824	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	1825	}
[84d58c5]	1826	\| aggregate_key attribute_list_opt typegen_name // CFA
[65d6de4]	1827	{
	1828	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	1829	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
	1830	// delete newFromTypeGen.
	1831	$$ = DeclarationNode::newAggregate( $1, $3->type->symbolic.name, $3->type->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	1832	$3->type->symbolic.name = nullptr;
	1833	$3->type->symbolic.actuals = nullptr;
	1834	delete $3;
	1835	}
[4d51835]	1836	;
[51b73452]	1837
	1838	aggregate_key:
[c0aa336]	1839	STRUCT
[4d51835]	1840	{ $$ = DeclarationNode::Struct; }
[c0aa336]	1841	\| UNION
[4d51835]	1842	{ $$ = DeclarationNode::Union; }
[c27fb59]	1843	\| EXCEPTION
	1844	{ $$ = DeclarationNode::Exception; }
[d3bc0ad]	1845	\| COROUTINE
[409433da]	1846	{ $$ = DeclarationNode::Coroutine; }
[d3bc0ad]	1847	\| MONITOR
[409433da]	1848	{ $$ = DeclarationNode::Monitor; }
[d3bc0ad]	1849	\| THREAD
[409433da]	1850	{ $$ = DeclarationNode::Thread; }
[4d51835]	1851	;
[51b73452]	1852
[7fdb94e1]	1853	field_declaration_list_opt:
[5d125e4]	1854	// empty
[58dd019]	1855	{ $$ = nullptr; }
[7fdb94e1]	1856	\| field_declaration_list_opt field_declaration
[a7741435]	1857	{ $$ = $1 ? $1->appendList( $2 ) : $2; }
[4d51835]	1858	;
[51b73452]	1859
	1860	field_declaration:
[c0aa336]	1861	cfa_field_declaring_list ';' // CFA, new style field declaration
	1862	\| EXTENSION cfa_field_declaring_list ';' // GCC
	1863	{
	1864	distExt( $2 ); // mark all fields in list
[8e9cbb2]	1865	$$ = $2;
	1866	}
[c0aa336]	1867	\| type_specifier field_declaring_list ';'
	1868	{
	1869	$$ = distAttr( $1, $2 ); }
	1870	\| EXTENSION type_specifier field_declaring_list ';' // GCC
	1871	{
	1872	distExt( $3 ); // mark all fields in list
	1873	$$ = distAttr( $2, $3 );
	1874	}
[b9be000b]	1875	\| static_assert
[4d51835]	1876	;
[b87a5ed]	1877
[c0aa336]	1878	cfa_field_declaring_list: // CFA, new style field declaration
	1879	cfa_abstract_declarator_tuple // CFA, no field name
	1880	\| cfa_abstract_declarator_tuple no_attr_identifier_or_type_name
[4d51835]	1881	{ $$ = $1->addName( $2 ); }
[c0aa336]	1882	\| cfa_field_declaring_list ',' no_attr_identifier_or_type_name
[4d51835]	1883	{ $$ = $1->appendList( $1->cloneType( $3 ) ); }
[c0aa336]	1884	\| cfa_field_declaring_list ',' // CFA, no field name
[4d51835]	1885	{ $$ = $1->appendList( $1->cloneType( 0 ) ); }
	1886	;
[51b73452]	1887
	1888	field_declaring_list:
[7fdb94e1]	1889	field_declarator_opt
	1890	\| field_declaring_list ',' attribute_list_opt field_declarator_opt
[c0aa336]	1891	{ $$ = $1->appendList( $4->addQualifiers( $3 ) ); }
[4d51835]	1892	;
[51b73452]	1893
[7fdb94e1]	1894	field_declarator_opt:
[4d51835]	1895	// empty
	1896	{ $$ = DeclarationNode::newName( 0 ); /* XXX */ } // CFA, no field name
[6f95000]	1897	// '@'
	1898	// { $$ = DeclarationNode::newName( new string( DeclarationNode::anonymous.newName() ) ); } // CFA, no field name
[4d51835]	1899	\| bit_subrange_size // no field name
	1900	{ $$ = DeclarationNode::newBitfield( $1 ); }
	1901	\| variable_declarator bit_subrange_size_opt
	1902	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1903	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	1904	\| variable_type_redeclarator bit_subrange_size_opt
[4d51835]	1905	// A semantic check is required to ensure bit_subrange only appears on base type int.
	1906	{ $$ = $1->addBitfield( $2 ); }
	1907	\| variable_abstract_declarator // CFA, no field name
	1908	;
[51b73452]	1909
	1910	bit_subrange_size_opt:
[4d51835]	1911	// empty
[58dd019]	1912	{ $$ = nullptr; }
[4d51835]	1913	\| bit_subrange_size
	1914	{ $$ = $1; }
	1915	;
[51b73452]	1916
	1917	bit_subrange_size:
[4d51835]	1918	':' constant_expression
	1919	{ $$ = $2; }
	1920	;
[51b73452]	1921
[d0ffed1]	1922	enum_type: // enum
[c0aa336]	1923	ENUM attribute_list_opt '{' enumerator_list comma_opt '}'
[6f95000]	1924	{ $$ = DeclarationNode::newEnum( new string( DeclarationNode::anonymous.newName() ), $4, true )->addQualifiers( $2 ); }
[c0aa336]	1925	\| ENUM attribute_list_opt no_attr_identifier_or_type_name
[d0ffed1]	1926	{ typedefTable.makeTypedef( *$3 ); }
	1927	'{' enumerator_list comma_opt '}'
	1928	{ $$ = DeclarationNode::newEnum( $3, $6, true )->addQualifiers( $2 ); }
	1929	\| enum_type_nobody
	1930	;
	1931
	1932	enum_type_nobody: // enum - {...}
	1933	ENUM attribute_list_opt no_attr_identifier_or_type_name
[45161b4d]	1934	{
[c0aa336]	1935	typedefTable.makeTypedef( *$3 );
[ca1a547]	1936	$$ = DeclarationNode::newEnum( $3, 0, false )->addQualifiers( $2 );
[45161b4d]	1937	}
[4d51835]	1938	;
[51b73452]	1939
	1940	enumerator_list:
[2871210]	1941	no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1942	{ $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
[2871210]	1943	\| enumerator_list ',' no_attr_identifier_or_type_name enumerator_value_opt
[4d51835]	1944	{ $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
	1945	;
[51b73452]	1946
	1947	enumerator_value_opt:
[4d51835]	1948	// empty
[58dd019]	1949	{ $$ = nullptr; }
[4d51835]	1950	\| '=' constant_expression
	1951	{ $$ = $2; }
	1952	;
[51b73452]	1953
[2a8427c6]	1954	cfa_parameter_type_list_opt: // CFA, abstract + real
[4d51835]	1955	// empty
[2a8427c6]	1956	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1957	\| ELLIPSIS
[58dd019]	1958	{ $$ = nullptr; }
[2a8427c6]	1959	\| cfa_abstract_parameter_list
[c0aa336]	1960	\| cfa_parameter_list
[c0a33d2]	1961	\| cfa_parameter_list pop ',' push cfa_abstract_parameter_list
	1962	{ $$ = $1->appendList( $5 ); }
	1963	\| cfa_abstract_parameter_list pop ',' push ELLIPSIS
[4d51835]	1964	{ $$ = $1->addVarArgs(); }
[c0a33d2]	1965	\| cfa_parameter_list pop ',' push ELLIPSIS
[4d51835]	1966	{ $$ = $1->addVarArgs(); }
	1967	;
[b87a5ed]	1968
[c0aa336]	1969	cfa_parameter_list: // CFA
	1970	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	1971	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	1972	cfa_parameter_declaration
[c0a33d2]	1973	\| cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration
	1974	{ $$ = $1->appendList( $5 ); }
	1975	\| cfa_parameter_list pop ',' push cfa_parameter_declaration
	1976	{ $$ = $1->appendList( $5 ); }
	1977	\| cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration
	1978	{ $$ = $1->appendList( $5 )->appendList( $9 ); }
[4d51835]	1979	;
[b87a5ed]	1980
[c0aa336]	1981	cfa_abstract_parameter_list: // CFA, new & old style abstract
	1982	cfa_abstract_parameter_declaration
[c0a33d2]	1983	\| cfa_abstract_parameter_list pop ',' push cfa_abstract_parameter_declaration
	1984	{ $$ = $1->appendList( $5 ); }
[4d51835]	1985	;
[51b73452]	1986
	1987	parameter_type_list_opt:
[4d51835]	1988	// empty
[58dd019]	1989	{ $$ = nullptr; }
[2a8427c6]	1990	\| ELLIPSIS
	1991	{ $$ = nullptr; }
	1992	\| parameter_list
[4d51835]	1993	\| parameter_list pop ',' push ELLIPSIS
	1994	{ $$ = $1->addVarArgs(); }
	1995	;
[b87a5ed]	1996
	1997	parameter_list: // abstract + real
[4d51835]	1998	abstract_parameter_declaration
	1999	\| parameter_declaration
	2000	\| parameter_list pop ',' push abstract_parameter_declaration
	2001	{ $$ = $1->appendList( $5 ); }
	2002	\| parameter_list pop ',' push parameter_declaration
	2003	{ $$ = $1->appendList( $5 ); }
	2004	;
[51b73452]	2005
[de62360d]	2006	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2007	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2008
[c0aa336]	2009	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2010	parameter_declaration
[994d080]	2011	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initialize_opt
[4d51835]	2012	{ $$ = $1->addName( $2 ); }
[994d080]	2013	\| cfa_abstract_tuple identifier_or_type_name default_initialize_opt
[c0aa336]	2014	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2015	{ $$ = $1->addName( $2 ); }
[994d080]	2016	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initialize_opt
[4d51835]	2017	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[c0aa336]	2018	\| cfa_function_specifier
[4d51835]	2019	;
[b87a5ed]	2020
[c0aa336]	2021	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2022	abstract_parameter_declaration
[c0aa336]	2023	\| cfa_identifier_parameter_declarator_no_tuple
	2024	\| cfa_abstract_tuple
	2025	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2026	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2027	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2028	\| cfa_abstract_function
[4d51835]	2029	;
[51b73452]	2030
	2031	parameter_declaration:
[d0ffed1]	2032	// No SUE declaration in parameter list.
[994d080]	2033	declaration_specifier_nobody identifier_parameter_declarator default_initialize_opt
[7fdb94e1]	2034	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[994d080]	2035	\| declaration_specifier_nobody type_parameter_redeclarator default_initialize_opt
[7fdb94e1]	2036	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[4d51835]	2037	;
[51b73452]	2038
	2039	abstract_parameter_declaration:
[994d080]	2040	declaration_specifier_nobody default_initialize_opt
[e7cc8cb]	2041	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
[994d080]	2042	\| declaration_specifier_nobody abstract_parameter_declarator default_initialize_opt
[e7cc8cb]	2043	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[4d51835]	2044	;
[51b73452]	2045
[c11e31c]	2046	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2047	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2048	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2049
[b87a5ed]	2050	identifier_list: // K&R-style parameter list => no types
[4d51835]	2051	no_attr_identifier
	2052	{ $$ = DeclarationNode::newName( $1 ); }
	2053	\| identifier_list ',' no_attr_identifier
	2054	{ $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
	2055	;
[51b73452]	2056
[2871210]	2057	identifier_or_type_name:
[4d51835]	2058	identifier
	2059	\| TYPEDEFname
	2060	\| TYPEGENname
	2061	;
[51b73452]	2062
[2871210]	2063	no_attr_identifier_or_type_name:
[4d51835]	2064	no_attr_identifier
	2065	\| TYPEDEFname
[721f17a]	2066	\| TYPEGENname
[4d51835]	2067	;
[b87a5ed]	2068
[84d58c5]	2069	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2070	cfa_abstract_declarator_tuple // CFA
[4d51835]	2071	\| type_specifier
[c0aa336]	2072	\| type_specifier abstract_declarator
[4d51835]	2073	{ $$ = $2->addType( $1 ); }
	2074	;
[b87a5ed]	2075
[84d58c5]	2076	type: // typeof, assertion
	2077	type_no_function
[c0aa336]	2078	\| cfa_abstract_function // CFA
[4d51835]	2079	;
[51b73452]	2080
	2081	initializer_opt:
[4d51835]	2082	// empty
[58dd019]	2083	{ $$ = nullptr; }
[2871210]	2084	\| '=' initializer
	2085	{ $$ = $2; }
[641c3d0]	2086	\| '=' VOID
	2087	{ $$ = nullptr; }
[097e2b0]	2088	\| ATassign initializer
[974906e2]	2089	{ $$ = $2->set_maybeConstructed( false ); }
[4d51835]	2090	;
[51b73452]	2091
	2092	initializer:
[de62360d]	2093	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	2094	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2095	;
[51b73452]	2096
[7fdb94e1]	2097	initializer_list_opt:
[097e2b0]	2098	// empty
[58dd019]	2099	{ $$ = nullptr; }
[097e2b0]	2100	\| initializer
[4d51835]	2101	\| designation initializer { $$ = $2->set_designators( $1 ); }
[7fdb94e1]	2102	\| initializer_list_opt ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); }
	2103	\| initializer_list_opt ',' designation initializer
[1d4580a]	2104	{ $$ = (InitializerNode *)( $1->set_last( $4->set_designators( $3 ) ) ); }
[4d51835]	2105	;
[b87a5ed]	2106
[de62360d]	2107	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	2108	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	2109	//
[b87a5ed]	2110	// int x[10] = { [1] = 3 };
[c11e31c]	2111	//
[de62360d]	2112	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	2113	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	2114	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	2115	// shift/reduce conflicts
[51b73452]	2116
	2117	designation:
[4d51835]	2118	designator_list ':' // C99, CFA uses ":" instead of "="
[84d58c5]	2119	\| no_attr_identifier ':' // GCC, field name
[d1625f8]	2120	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	2121	;
[51b73452]	2122
[b87a5ed]	2123	designator_list: // C99
[4d51835]	2124	designator
[2871210]	2125	\| designator_list designator
[1d4580a]	2126	{ $$ = (ExpressionNode *)( $1->set_last( $2 ) ); }
[d1625f8]	2127	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	2128	;
[51b73452]	2129
	2130	designator:
[84d58c5]	2131	'.' no_attr_identifier // C99, field name
[d1625f8]	2132	{ $$ = new ExpressionNode( build_varref( $2 ) ); }
[c0a33d2]	2133	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	2134	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	2135	{ $$ = $3; }
[c0a33d2]	2136	\| '[' push subrange pop ']' // CFA, multiple array elements
	2137	{ $$ = $3; }
	2138	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
	2139	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $3 ), maybeMoveBuild< Expression >( $5 ) ) ); }
	2140	\| '.' '[' push field_list pop ']' // CFA, tuple field selector
	2141	{ $$ = $4; }
[4d51835]	2142	;
[51b73452]	2143
[de62360d]	2144	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	2145	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	2146	//
	2147	// Overloading: function, data, and operator identifiers may be overloaded.
	2148	//
[de62360d]	2149	// Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
	2150	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	2151	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	2152	//
[de62360d]	2153	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	2154	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	2155	//
	2156	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	2157	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	2158	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	2159	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	2160	// on type arguments of polymorphic functions.
[c11e31c]	2161
[b87a5ed]	2162	type_parameter_list: // CFA
[67cf18c]	2163	type_parameter
	2164	{ $$ = $1; }
	2165	\| type_parameter_list ',' type_parameter
[4d51835]	2166	{ $$ = $1->appendList( $3 ); }
	2167	;
[b87a5ed]	2168
[84d58c5]	2169	type_initializer_opt: // CFA
	2170	// empty
	2171	{ $$ = nullptr; }
	2172	\| '=' type
	2173	{ $$ = $2; }
	2174	;
	2175
[b87a5ed]	2176	type_parameter: // CFA
[2871210]	2177	type_class no_attr_identifier_or_type_name
[2f0a0678]	2178	{ typedefTable.addToEnclosingScope( *$2, TYPEDEFname ); }
[67cf18c]	2179	type_initializer_opt assertion_list_opt
	2180	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[4d51835]	2181	\| type_specifier identifier_parameter_declarator
[9997fee]	2182	\| assertion_list
	2183	{ $$ = DeclarationNode::newTypeParam( DeclarationNode::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[4d51835]	2184	;
[b87a5ed]	2185
	2186	type_class: // CFA
[4040425]	2187	OTYPE
[5b639ee]	2188	{ $$ = DeclarationNode::Otype; }
[4d51835]	2189	\| DTYPE
	2190	{ $$ = DeclarationNode::Dtype; }
[8f60f0b]	2191	\| FTYPE
	2192	{ $$ = DeclarationNode::Ftype; }
	2193	\| TTYPE
	2194	{ $$ = DeclarationNode::Ttype; }
[4d51835]	2195	;
[b87a5ed]	2196
	2197	assertion_list_opt: // CFA
[4d51835]	2198	// empty
[58dd019]	2199	{ $$ = nullptr; }
[9997fee]	2200	\| assertion_list
	2201	;
	2202
	2203	assertion_list: // CFA
	2204	assertion
	2205	\| assertion_list assertion
[a7741435]	2206	{ $$ = $1 ? $1->appendList( $2 ) : $2; }
[4d51835]	2207	;
[b87a5ed]	2208
	2209	assertion: // CFA
[84d58c5]	2210	'\|' no_attr_identifier_or_type_name '(' type_list ')'
[7fdb94e1]	2211	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[4040425]	2212	\| '\|' '{' push trait_declaration_list '}'
[4d51835]	2213	{ $$ = $4; }
[84d58c5]	2214	\| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list '}' '(' type_list ')'
[7fdb94e1]	2215	{ SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2216	;
[b87a5ed]	2217
[84d58c5]	2218	type_list: // CFA
	2219	type
[513e165]	2220	{ $$ = new ExpressionNode( new TypeExpr( maybeMoveBuildType( $1 ) ) ); }
[4d51835]	2221	\| assignment_expression
[84d58c5]	2222	\| type_list ',' type
[513e165]	2223	{ $$ = (ExpressionNode *)( $1->set_last( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ) ) ); }
[84d58c5]	2224	\| type_list ',' assignment_expression
[1d4580a]	2225	{ $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	2226	;
[b87a5ed]	2227
	2228	type_declaring_list: // CFA
[4040425]	2229	OTYPE type_declarator
[4d51835]	2230	{ $$ = $2; }
[4040425]	2231	\| storage_class_list OTYPE type_declarator
[4d51835]	2232	{ $$ = $3->addQualifiers( $1 ); }
	2233	\| type_declaring_list ',' type_declarator
[a7c90d4]	2234	{ $$ = $1->appendList( $3->copySpecifiers( $1 ) ); }
[4d51835]	2235	;
[b87a5ed]	2236
	2237	type_declarator: // CFA
[4d51835]	2238	type_declarator_name assertion_list_opt
	2239	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	2240	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	2241	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	2242	;
[b87a5ed]	2243
	2244	type_declarator_name: // CFA
[2871210]	2245	no_attr_identifier_or_type_name
[4d51835]	2246	{
[2f0a0678]	2247	typedefTable.addToEnclosingScope( *$1, TYPEDEFname );
[4d51835]	2248	$$ = DeclarationNode::newTypeDecl( $1, 0 );
	2249	}
[84d58c5]	2250	\| no_attr_identifier_or_type_name '(' push type_parameter_list pop ')'
[4d51835]	2251	{
[2f0a0678]	2252	typedefTable.addToEnclosingScope( *$1, TYPEGENname );
[4d51835]	2253	$$ = DeclarationNode::newTypeDecl( $1, $4 );
	2254	}
	2255	;
[b87a5ed]	2256
[4040425]	2257	trait_specifier: // CFA
	2258	TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{' '}'
[7fdb94e1]	2259	{ $$ = DeclarationNode::newTrait( $2, $5, 0 ); }
[4040425]	2260	\| TRAIT no_attr_identifier_or_type_name '(' push type_parameter_list pop ')' '{'
[7fdb94e1]	2261	{ typedefTable.enterScope(); }
[4040425]	2262	trait_declaration_list '}'
[7fdb94e1]	2263	{ $$ = DeclarationNode::newTrait( $2, $5, $10 ); }
[4d51835]	2264	;
[b87a5ed]	2265
[84d58c5]	2266	trait_declaration_list: // CFA
[4040425]	2267	trait_declaration
	2268	\| trait_declaration_list push trait_declaration
[4d51835]	2269	{ $$ = $1->appendList( $3 ); }
	2270	;
[b87a5ed]	2271
[84d58c5]	2272	trait_declaration: // CFA
[c0aa336]	2273	cfa_trait_declaring_list pop ';'
[4040425]	2274	\| trait_declaring_list pop ';'
[4d51835]	2275	;
[b87a5ed]	2276
[c0aa336]	2277	cfa_trait_declaring_list: // CFA
	2278	cfa_variable_specifier
	2279	\| cfa_function_specifier
	2280	\| cfa_trait_declaring_list pop ',' push identifier_or_type_name
[7fdb94e1]	2281	{ $$ = $1->appendList( $1->cloneType( $5 ) ); }
[4d51835]	2282	;
[b87a5ed]	2283
[4040425]	2284	trait_declaring_list: // CFA
[4d51835]	2285	type_specifier declarator
[7fdb94e1]	2286	{ $$ = $2->addType( $1 ); }
[4040425]	2287	\| trait_declaring_list pop ',' push declarator
[7fdb94e1]	2288	{ $$ = $1->appendList( $1->cloneBaseType( $5 ) ); }
[4d51835]	2289	;
[51b73452]	2290
[c11e31c]	2291	//*************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	2292
	2293	translation_unit:
[4d51835]	2294	// empty
	2295	{} // empty input file
	2296	\| external_definition_list
[a7741435]	2297	{ parseTree = parseTree ? parseTree->appendList( $1 ) : $1; }
[4d51835]	2298	;
[51b73452]	2299
	2300	external_definition_list:
[4d51835]	2301	external_definition
[df22130]	2302	\| external_definition_list
	2303	{ forall = xxx; }
	2304	push external_definition
[9997fee]	2305	{ $$ = $1 ? $1->appendList( $4 ) : $4; }
[4d51835]	2306	;
[51b73452]	2307
	2308	external_definition_list_opt:
[4d51835]	2309	// empty
[58dd019]	2310	{ $$ = nullptr; }
[4d51835]	2311	\| external_definition_list
	2312	;
[51b73452]	2313
	2314	external_definition:
[4d51835]	2315	declaration
	2316	\| external_function_definition
[e994912]	2317	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
	2318	{
[6d539f83]	2319	$$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( false, $3, 0 ) ) );
[e994912]	2320	}
[c0aa336]	2321	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	2322	{
[3b8e52c]	2323	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[d55d7a6]	2324	linkage = LinkageSpec::linkageUpdate( yylloc, linkage, $2 );
[4d51835]	2325	}
[c0aa336]	2326	'{' external_definition_list_opt '}'
[4d51835]	2327	{
	2328	linkage = linkageStack.top();
	2329	linkageStack.pop();
	2330	$$ = $5;
	2331	}
[c0aa336]	2332	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	2333	{
	2334	distExt( $2 ); // mark all fields in list
[8e9cbb2]	2335	$$ = $2;
	2336	}
[9997fee]	2337	\| type_qualifier_list
[c0a33d2]	2338	{ if ( $1->type->forall ) xxx = forall = true; } // remember generic type
[9997fee]	2339	push '{' external_definition_list '}' // CFA, namespace
	2340	{
	2341	for ( DeclarationNode * iter = $5; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) {
[1dbc8590]	2342	if ( isMangled( iter->linkage ) ) { // ignore extern "C"
	2343	iter->addQualifiers( $1->clone() );
	2344	} // if
[9997fee]	2345	} // for
	2346	xxx = false;
	2347	delete $1;
	2348	$$ = $5;
	2349	}
	2350	\| declaration_qualifier_list
[c0a33d2]	2351	{ if ( $1->type->forall ) xxx = forall = true; } // remember generic type
[9997fee]	2352	push '{' external_definition_list '}' // CFA, namespace
	2353	{
	2354	for ( DeclarationNode * iter = $5; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) {
[1dbc8590]	2355	if ( isMangled( iter->linkage ) ) { // ignore extern "C"
	2356	iter->addQualifiers( $1->clone() );
	2357	} // if
[9997fee]	2358	} // for
	2359	xxx = false;
	2360	delete $1;
	2361	$$ = $5;
	2362	}
	2363	\| declaration_qualifier_list type_qualifier_list
	2364	{
[637dd9c]	2365	// forall must be in the type_qualifier_list
	2366	if ( $2->type->forall ) xxx = forall = true; // remember generic type
[9997fee]	2367	}
	2368	push '{' external_definition_list '}' // CFA, namespace
	2369	{
	2370	for ( DeclarationNode * iter = $6; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) {
[1dbc8590]	2371	if ( isMangled( iter->linkage ) && isMangled( $2->linkage ) ) { // ignore extern "C"
	2372	iter->addQualifiers( $1->clone() );
	2373	iter->addQualifiers( $2->clone() );
	2374	} // if
[9997fee]	2375	} // for
	2376	xxx = false;
	2377	delete $1;
	2378	delete $2;
	2379	$$ = $6;
	2380	}
[4d51835]	2381	;
	2382
	2383	external_function_definition:
	2384	function_definition
[de62360d]	2385	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	2386	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	2387	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	2388	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	2389	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	2390	\| function_declarator compound_statement
[c0a33d2]	2391	{ $$ = $1->addFunctionBody( $2 ); }
[4cc585b]	2392	\| KR_function_declarator KR_declaration_list_opt compound_statement
[c0a33d2]	2393	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	2394	;
[51b73452]	2395
[8b47e50]	2396	with_clause_opt:
	2397	// empty
[9997fee]	2398	{ $$ = nullptr; forall = false; }
[578e6037]	2399	\| WITH '(' tuple_expression_list ')'
[9997fee]	2400	{ $$ = $3; forall = false; }
[8b47e50]	2401	;
	2402
[51b73452]	2403	function_definition:
[8b47e50]	2404	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	2405	{
[481115f]	2406	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	2407	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	2408	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	2409	$$ = $1;
[4d51835]	2410	}
[8b47e50]	2411	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	2412	{
[c38ae92]	2413	rebindForall( $1, $2 );
[7fdb94e1]	2414	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	2415	}
	2416	\| declaration_specifier variable_type_redeclarator with_clause_opt compound_statement
	2417	{
	2418	rebindForall( $1, $2 );
[5fcba14]	2419	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	2420	}
[a16a7ec]	2421	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2422	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2423	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	2424	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2425	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2426	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	2427	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2428	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2429	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	2430
	2431	// Old-style K&R function definition, OBSOLESCENT (see 4)
[4cc585b]	2432	\| declaration_specifier KR_function_declarator KR_declaration_list_opt with_clause_opt compound_statement
[4d51835]	2433	{
[c38ae92]	2434	rebindForall( $1, $2 );
[5fcba14]	2435	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	2436	}
[a16a7ec]	2437	// handles default int return type, OBSOLESCENT (see 1)
[4cc585b]	2438	\| type_qualifier_list KR_function_declarator KR_declaration_list_opt with_clause_opt compound_statement
[c0a33d2]	2439	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	2440	// handles default int return type, OBSOLESCENT (see 1)
[4cc585b]	2441	\| declaration_qualifier_list KR_function_declarator KR_declaration_list_opt with_clause_opt compound_statement
[c0a33d2]	2442	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	2443	// handles default int return type, OBSOLESCENT (see 1)
[4cc585b]	2444	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_declaration_list_opt with_clause_opt compound_statement
[c0a33d2]	2445	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	2446	;
[51b73452]	2447
	2448	declarator:
[4d51835]	2449	variable_declarator
[c6b1105]	2450	\| variable_type_redeclarator
[4d51835]	2451	\| function_declarator
	2452	;
[51b73452]	2453
	2454	subrange:
[4d51835]	2455	constant_expression '~' constant_expression // CFA, integer subrange
[db70fe4]	2456	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	2457	;
[b87a5ed]	2458
	2459	asm_name_opt: // GCC
[4d51835]	2460	// empty
[58dd019]	2461	{ $$ = nullptr; }
	2462	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	2463	{
	2464	DeclarationNode * name = new DeclarationNode();
	2465	name->asmName = $3;
	2466	$$ = name->addQualifiers( $5 );
	2467	}
[4d51835]	2468	;
[b87a5ed]	2469
	2470	attribute_list_opt: // GCC
[4d51835]	2471	// empty
[58dd019]	2472	{ $$ = nullptr; }
[4d51835]	2473	\| attribute_list
	2474	;
[b87a5ed]	2475
	2476	attribute_list: // GCC
[4d51835]	2477	attribute
	2478	\| attribute_list attribute
[1db21619]	2479	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	2480	;
[b87a5ed]	2481
	2482	attribute: // GCC
[44a81853]	2483	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	2484	{ $$ = $4; }
[4d51835]	2485	;
[b87a5ed]	2486
[44a81853]	2487	attribute_name_list: // GCC
	2488	attribute_name
	2489	\| attribute_name_list ',' attribute_name
[c0aa336]	2490	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2491	;
[b87a5ed]	2492
[44a81853]	2493	attribute_name: // GCC
[4d51835]	2494	// empty
[44a81853]	2495	{ $$ = nullptr; }
	2496	\| attr_name
	2497	{ $$ = DeclarationNode::newAttribute( $1 ); }
	2498	\| attr_name '(' argument_expression_list ')'
	2499	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	2500	;
[b87a5ed]	2501
[44a81853]	2502	attr_name: // GCC
	2503	IDENTIFIER
[5b2edbc]	2504	\| quasi_keyword
[44a81853]	2505	\| TYPEDEFname
	2506	\| TYPEGENname
[114014c]	2507	\| FALLTHROUGH
	2508	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	2509	\| CONST
[9ff56e7]	2510	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	2511	;
[51b73452]	2512
[c11e31c]	2513	// ============================================================================
[de62360d]	2514	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	2515	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	2516	// in:
[c11e31c]	2517	//
[b87a5ed]	2518	// int (*f())[10] { ... };
	2519	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	2520	//
[de62360d]	2521	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	2522	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	2523	// ============================================================================
	2524
	2525	// ----------------------------------------------------------------------------
[de62360d]	2526	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	2527	// to define a variable or function prototype, e.g.:
[c11e31c]	2528	//
[b87a5ed]	2529	// valid declaration invalid definition
	2530	// ----------------- ------------------
[4d51835]	2531	// int f; int f {}
	2532	// int f; int f {}
[b87a5ed]	2533	// int f[10]; int f[10] {}
[4d51835]	2534	// int (f)(int); int (f)(int) {}
[c11e31c]	2535	//
[de62360d]	2536	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	2537	// variable_declarator and function_declarator.
[c11e31c]	2538	// ----------------------------------------------------------------------------
	2539
[de62360d]	2540	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	2541	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	2542
	2543	variable_declarator:
[4d51835]	2544	paren_identifier attribute_list_opt
[1db21619]	2545	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2546	\| variable_ptr
	2547	\| variable_array attribute_list_opt
[1db21619]	2548	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2549	\| variable_function attribute_list_opt
[1db21619]	2550	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2551	;
[51b73452]	2552
	2553	paren_identifier:
[4d51835]	2554	identifier
[7fdb94e1]	2555	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	2556	\| '(' paren_identifier ')' // redundant parenthesis
	2557	{ $$ = $2; }
	2558	;
[51b73452]	2559
	2560	variable_ptr:
[dd51906]	2561	ptrref_operator variable_declarator
[ce8c12f]	2562	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2563	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	2564	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2565	\| '(' variable_ptr ')' attribute_list_opt
	2566	{ $$ = $2->addQualifiers( $4 ); } // redundant parenthesis
[4d51835]	2567	;
[51b73452]	2568
	2569	variable_array:
[4d51835]	2570	paren_identifier array_dimension
	2571	{ $$ = $1->addArray( $2 ); }
	2572	\| '(' variable_ptr ')' array_dimension
	2573	{ $$ = $2->addArray( $4 ); }
	2574	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
	2575	{ $$ = $2->addArray( $4 ); }
	2576	\| '(' variable_array ')' // redundant parenthesis
	2577	{ $$ = $2; }
	2578	;
[51b73452]	2579
	2580	variable_function:
[4d51835]	2581	'(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2582	{ $$ = $2->addParamList( $6 ); }
	2583	\| '(' variable_function ')' // redundant parenthesis
	2584	{ $$ = $2; }
	2585	;
[51b73452]	2586
[c6b1105]	2587	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	2588	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	2589	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	2590
	2591	function_declarator:
[4d51835]	2592	function_no_ptr attribute_list_opt
[1db21619]	2593	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2594	\| function_ptr
	2595	\| function_array attribute_list_opt
[1db21619]	2596	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2597	;
[51b73452]	2598
	2599	function_no_ptr:
[4d51835]	2600	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2601	{ $$ = $1->addParamList( $4 ); }
	2602	\| '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2603	{ $$ = $2->addParamList( $6 ); }
	2604	\| '(' function_no_ptr ')' // redundant parenthesis
	2605	{ $$ = $2; }
	2606	;
[51b73452]	2607
	2608	function_ptr:
[dd51906]	2609	ptrref_operator function_declarator
[ce8c12f]	2610	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2611	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	2612	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[4d51835]	2613	\| '(' function_ptr ')'
	2614	{ $$ = $2; }
	2615	;
[51b73452]	2616
	2617	function_array:
[4d51835]	2618	'(' function_ptr ')' array_dimension
	2619	{ $$ = $2->addArray( $4 ); }
	2620	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	2621	{ $$ = $2->addArray( $4 ); }
	2622	\| '(' function_array ')' // redundant parenthesis
	2623	{ $$ = $2; }
	2624	;
[51b73452]	2625
[c0aa336]	2626	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	2627	//
	2628	// f( a, b, c ) int a, *b, c[]; {}
	2629	//
	2630	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	2631	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	2632
[c0aa336]	2633	KR_function_declarator:
	2634	KR_function_no_ptr
	2635	\| KR_function_ptr
	2636	\| KR_function_array
[4d51835]	2637	;
[51b73452]	2638
[c0aa336]	2639	KR_function_no_ptr:
[4d51835]	2640	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	2641	{ $$ = $1->addIdList( $3 ); }
[c0a33d2]	2642	\| '(' KR_function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2643	{ $$ = $2->addParamList( $6 ); }
[c0aa336]	2644	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	2645	{ $$ = $2; }
	2646	;
[51b73452]	2647
[c0aa336]	2648	KR_function_ptr:
	2649	ptrref_operator KR_function_declarator
[ce8c12f]	2650	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	2651	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	2652	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2653	\| '(' KR_function_ptr ')'
[4d51835]	2654	{ $$ = $2; }
	2655	;
[51b73452]	2656
[c0aa336]	2657	KR_function_array:
	2658	'(' KR_function_ptr ')' array_dimension
[4d51835]	2659	{ $$ = $2->addArray( $4 ); }
[c0aa336]	2660	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2661	{ $$ = $2->addArray( $4 ); }
[c0aa336]	2662	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	2663	{ $$ = $2; }
	2664	;
[51b73452]	2665
[2871210]	2666	// This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
[c11e31c]	2667	//
[b87a5ed]	2668	// typedef int foo;
	2669	// {
	2670	// int foo; // redefine typedef name in new scope
	2671	// }
[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.
[51b73452]	2675
[c6b1105]	2676	variable_type_redeclarator:
[2871210]	2677	paren_type attribute_list_opt
[1db21619]	2678	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2679	\| type_ptr
	2680	\| type_array attribute_list_opt
[1db21619]	2681	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2682	\| type_function attribute_list_opt
[1db21619]	2683	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2684	;
[51b73452]	2685
[2871210]	2686	paren_type:
	2687	typedef
[2f0a0678]	2688	// hide type name in enclosing scope by variable name
	2689	{ typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER ); }
[2871210]	2690	\| '(' paren_type ')'
[4d51835]	2691	{ $$ = $2; }
	2692	;
[51b73452]	2693
[2871210]	2694	type_ptr:
[c6b1105]	2695	ptrref_operator variable_type_redeclarator
[ce8c12f]	2696	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c6b1105]	2697	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	2698	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2699	\| '(' type_ptr ')' attribute_list_opt
	2700	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	2701	;
[51b73452]	2702
[2871210]	2703	type_array:
	2704	paren_type array_dimension
[4d51835]	2705	{ $$ = $1->addArray( $2 ); }
[2871210]	2706	\| '(' type_ptr ')' array_dimension
[4d51835]	2707	{ $$ = $2->addArray( $4 ); }
[2871210]	2708	\| '(' type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2709	{ $$ = $2->addArray( $4 ); }
[2871210]	2710	\| '(' type_array ')' // redundant parenthesis
[4d51835]	2711	{ $$ = $2; }
	2712	;
[51b73452]	2713
[2871210]	2714	type_function:
	2715	paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2716	{ $$ = $1->addParamList( $4 ); }
[2871210]	2717	\| '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2718	{ $$ = $2->addParamList( $6 ); }
[2871210]	2719	\| '(' type_function ')' // redundant parenthesis
[4d51835]	2720	{ $$ = $2; }
	2721	;
[51b73452]	2722
[c0aa336]	2723	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	2724	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	2725	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	2726	// pointers to arrays and functions.
[51b73452]	2727
	2728	identifier_parameter_declarator:
[4d51835]	2729	paren_identifier attribute_list_opt
[1db21619]	2730	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	2731	\| '&' MUTEX paren_identifier attribute_list_opt
	2732	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	2733	\| identifier_parameter_ptr
	2734	\| identifier_parameter_array attribute_list_opt
[1db21619]	2735	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2736	\| identifier_parameter_function attribute_list_opt
[1db21619]	2737	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2738	;
[51b73452]	2739
	2740	identifier_parameter_ptr:
[dd51906]	2741	ptrref_operator identifier_parameter_declarator
[ce8c12f]	2742	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2743	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	2744	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2745	\| '(' identifier_parameter_ptr ')' attribute_list_opt
	2746	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	2747	;
[51b73452]	2748
	2749	identifier_parameter_array:
[4d51835]	2750	paren_identifier array_parameter_dimension
	2751	{ $$ = $1->addArray( $2 ); }
	2752	\| '(' identifier_parameter_ptr ')' array_dimension
	2753	{ $$ = $2->addArray( $4 ); }
	2754	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	2755	{ $$ = $2->addArray( $4 ); }
	2756	\| '(' identifier_parameter_array ')' // redundant parenthesis
	2757	{ $$ = $2; }
	2758	;
[51b73452]	2759
	2760	identifier_parameter_function:
[c0a33d2]	2761	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2762	{ $$ = $1->addParamList( $4 ); }
	2763	\| '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2764	{ $$ = $2->addParamList( $6 ); }
[4d51835]	2765	\| '(' identifier_parameter_function ')' // redundant parenthesis
	2766	{ $$ = $2; }
	2767	;
[b87a5ed]	2768
[de62360d]	2769	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	2770	// e.g.:
[c11e31c]	2771	//
[b87a5ed]	2772	// typedef int foo;
[114014c]	2773	// forall( otype T ) struct foo;
[b87a5ed]	2774	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	2775	//
[c0aa336]	2776	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	2777
[2871210]	2778	type_parameter_redeclarator:
[4d51835]	2779	typedef attribute_list_opt
[1db21619]	2780	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	2781	\| '&' MUTEX typedef attribute_list_opt
	2782	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	2783	\| type_parameter_ptr
	2784	\| type_parameter_array attribute_list_opt
[1db21619]	2785	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2786	\| type_parameter_function attribute_list_opt
[1db21619]	2787	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2788	;
[51b73452]	2789
	2790	typedef:
[4d51835]	2791	TYPEDEFname
[7fdb94e1]	2792	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	2793	\| TYPEGENname
[7fdb94e1]	2794	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	2795	;
[51b73452]	2796
[2871210]	2797	type_parameter_ptr:
[dd51906]	2798	ptrref_operator type_parameter_redeclarator
[ce8c12f]	2799	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2800	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	2801	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2802	\| '(' type_parameter_ptr ')' attribute_list_opt
	2803	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	2804	;
[51b73452]	2805
[2871210]	2806	type_parameter_array:
[4d51835]	2807	typedef array_parameter_dimension
	2808	{ $$ = $1->addArray( $2 ); }
[2871210]	2809	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	2810	{ $$ = $2->addArray( $4 ); }
	2811	;
[51b73452]	2812
[2871210]	2813	type_parameter_function:
[c0a33d2]	2814	typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2815	{ $$ = $1->addParamList( $4 ); }
	2816	\| '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2817	{ $$ = $2->addParamList( $6 ); }
[4d51835]	2818	;
[b87a5ed]	2819
[de62360d]	2820	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	2821	// which the type applies, e.g.:
[c11e31c]	2822	//
[b87a5ed]	2823	// sizeof( int );
[c0aa336]	2824	// sizeof( int * );
[b87a5ed]	2825	// sizeof( int [10] );
[c0aa336]	2826	// sizeof( int (*)() );
	2827	// sizeof( int () );
[c11e31c]	2828	//
[de62360d]	2829	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2830	// and functions versus pointers to arrays and functions.
[51b73452]	2831
	2832	abstract_declarator:
[4d51835]	2833	abstract_ptr
	2834	\| abstract_array attribute_list_opt
[1db21619]	2835	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2836	\| abstract_function attribute_list_opt
[1db21619]	2837	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2838	;
[51b73452]	2839
	2840	abstract_ptr:
[dd51906]	2841	ptrref_operator
[ce8c12f]	2842	{ $$ = DeclarationNode::newPointer( 0, $1 ); }
[dd51906]	2843	\| ptrref_operator type_qualifier_list
[ce8c12f]	2844	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	2845	\| ptrref_operator abstract_declarator
[ce8c12f]	2846	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2847	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	2848	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2849	\| '(' abstract_ptr ')' attribute_list_opt
	2850	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	2851	;
[51b73452]	2852
	2853	abstract_array:
[4d51835]	2854	array_dimension
	2855	\| '(' abstract_ptr ')' array_dimension
	2856	{ $$ = $2->addArray( $4 ); }
	2857	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	2858	{ $$ = $2->addArray( $4 ); }
	2859	\| '(' abstract_array ')' // redundant parenthesis
	2860	{ $$ = $2; }
	2861	;
[51b73452]	2862
	2863	abstract_function:
[c0a33d2]	2864	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2865	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
	2866	\| '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2867	{ $$ = $2->addParamList( $6 ); }
[4d51835]	2868	\| '(' abstract_function ')' // redundant parenthesis
	2869	{ $$ = $2; }
	2870	;
[51b73452]	2871
	2872	array_dimension:
[4d51835]	2873	// Only the first dimension can be empty.
[2871210]	2874	'[' ']'
[4d51835]	2875	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[2871210]	2876	\| '[' ']' multi_array_dimension
	2877	{ $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
[4d51835]	2878	\| multi_array_dimension
	2879	;
[51b73452]	2880
	2881	multi_array_dimension:
[c0a33d2]	2882	'[' push assignment_expression pop ']'
	2883	{ $$ = DeclarationNode::newArray( $3, 0, false ); }
	2884	\| '[' push '*' pop ']' // C99
[4d51835]	2885	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	2886	\| multi_array_dimension '[' push assignment_expression pop ']'
	2887	{ $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
	2888	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	2889	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	2890	;
[51b73452]	2891
[c11e31c]	2892	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	2893	// identifier to which the type applies, e.g.:
	2894	//
[c0aa336]	2895	// int f( int ); // not handled here
	2896	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	2897	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	2898	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	2899	//
[de62360d]	2900	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[c0aa336]	2901	// and functions versus pointers to arrays and functions. In addition, the pattern handles the
	2902	// special meaning of parenthesis around a typedef name:
	2903	//
	2904	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	2905	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	2906	// not as redundant parentheses around the identifier."
	2907	//
	2908	// For example:
	2909	//
	2910	// typedef float T;
	2911	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	2912	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	2913	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	2914	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	2915	//
	2916	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	2917	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	2918	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	2919	// functions.
[51b73452]	2920
	2921	abstract_parameter_declarator:
[4d51835]	2922	abstract_parameter_ptr
[b6b3c42]	2923	\| '&' MUTEX attribute_list_opt
	2924	{ $$ = DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	2925	\| abstract_parameter_array attribute_list_opt
[1db21619]	2926	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2927	\| abstract_parameter_function attribute_list_opt
[1db21619]	2928	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2929	;
[51b73452]	2930
	2931	abstract_parameter_ptr:
[dd51906]	2932	ptrref_operator
[ce8c12f]	2933	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	2934	\| ptrref_operator type_qualifier_list
[ce8c12f]	2935	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	2936	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	2937	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	2938	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	2939	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2940	\| '(' abstract_parameter_ptr ')' attribute_list_opt
	2941	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	2942	;
[51b73452]	2943
	2944	abstract_parameter_array:
[4d51835]	2945	array_parameter_dimension
	2946	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	2947	{ $$ = $2->addArray( $4 ); }
	2948	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	2949	{ $$ = $2->addArray( $4 ); }
	2950	\| '(' abstract_parameter_array ')' // redundant parenthesis
	2951	{ $$ = $2; }
	2952	;
[51b73452]	2953
	2954	abstract_parameter_function:
[c0a33d2]	2955	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2956	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
	2957	\| '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2958	{ $$ = $2->addParamList( $6 ); }
[4d51835]	2959	\| '(' abstract_parameter_function ')' // redundant parenthesis
	2960	{ $$ = $2; }
	2961	;
[51b73452]	2962
	2963	array_parameter_dimension:
[4d51835]	2964	// Only the first dimension can be empty or have qualifiers.
	2965	array_parameter_1st_dimension
	2966	\| array_parameter_1st_dimension multi_array_dimension
	2967	{ $$ = $1->addArray( $2 ); }
	2968	\| multi_array_dimension
	2969	;
[51b73452]	2970
[c11e31c]	2971	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	2972	//
[de62360d]	2973	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	2974	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	2975
	2976	array_parameter_1st_dimension:
[2871210]	2977	'[' ']'
[4d51835]	2978	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
	2979	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	2980	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	2981	{ $$ = DeclarationNode::newVarArray( $3 ); }
	2982	\| '[' push type_qualifier_list pop ']'
	2983	{ $$ = DeclarationNode::newArray( 0, $3, false ); }
[4d51835]	2984	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	2985	\| '[' push type_qualifier_list assignment_expression pop ']'
	2986	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	2987	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	2988	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	2989	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	2990	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	2991	;
[b87a5ed]	2992
[c0aa336]	2993	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	2994	//
[c0aa336]	2995	// struct S {
	2996	// int;
	2997	// int *;
	2998	// int [10];
	2999	// int (*)();
	3000	// };
[51b73452]	3001
	3002	variable_abstract_declarator:
[4d51835]	3003	variable_abstract_ptr
	3004	\| variable_abstract_array attribute_list_opt
[1db21619]	3005	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3006	\| variable_abstract_function attribute_list_opt
[1db21619]	3007	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3008	;
[51b73452]	3009
	3010	variable_abstract_ptr:
[dd51906]	3011	ptrref_operator
[ce8c12f]	3012	{ $$ = DeclarationNode::newPointer( 0, $1 ); }
[dd51906]	3013	\| ptrref_operator type_qualifier_list
[ce8c12f]	3014	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3015	\| ptrref_operator variable_abstract_declarator
[ce8c12f]	3016	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3017	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	3018	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3019	\| '(' variable_abstract_ptr ')' attribute_list_opt
	3020	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3021	;
[51b73452]	3022
	3023	variable_abstract_array:
[4d51835]	3024	array_dimension
	3025	\| '(' variable_abstract_ptr ')' array_dimension
	3026	{ $$ = $2->addArray( $4 ); }
	3027	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	3028	{ $$ = $2->addArray( $4 ); }
	3029	\| '(' variable_abstract_array ')' // redundant parenthesis
	3030	{ $$ = $2; }
	3031	;
[51b73452]	3032
	3033	variable_abstract_function:
[c0a33d2]	3034	'(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3035	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3036	\| '(' variable_abstract_function ')' // redundant parenthesis
	3037	{ $$ = $2; }
	3038	;
[b87a5ed]	3039
[de62360d]	3040	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	3041	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	3042
[c0aa336]	3043	cfa_identifier_parameter_declarator_tuple: // CFA
	3044	cfa_identifier_parameter_declarator_no_tuple
	3045	\| cfa_abstract_tuple
	3046	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	3047	{ $$ = $2->addQualifiers( $1 ); }
	3048	;
[b87a5ed]	3049
[c0aa336]	3050	cfa_identifier_parameter_declarator_no_tuple: // CFA
	3051	cfa_identifier_parameter_ptr
	3052	\| cfa_identifier_parameter_array
[4d51835]	3053	;
[b87a5ed]	3054
[c0aa336]	3055	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	3056	// No SUE declaration in parameter list.
	3057	ptrref_operator type_specifier_nobody
[ce8c12f]	3058	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[d0ffed1]	3059	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	3060	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3061	\| ptrref_operator cfa_abstract_function
[ce8c12f]	3062	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3063	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	3064	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3065	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	3066	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3067	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	3068	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	3069	;
[b87a5ed]	3070
[c0aa336]	3071	cfa_identifier_parameter_array: // CFA
[de62360d]	3072	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	3073	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	3074	'[' ']' type_specifier_nobody
[2871210]	3075	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[d0ffed1]	3076	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	3077	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	3078	\| '[' ']' multi_array_dimension type_specifier_nobody
[2871210]	3079	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[d0ffed1]	3080	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	3081	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	3082	\| multi_array_dimension type_specifier_nobody
[4d51835]	3083	{ $$ = $2->addNewArray( $1 ); }
[9059213]	3084
[c0aa336]	3085	\| '[' ']' cfa_identifier_parameter_ptr
[2871210]	3086	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[c0aa336]	3087	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	3088	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	3089	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[2871210]	3090	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[c0aa336]	3091	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	3092	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	3093	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	3094	{ $$ = $2->addNewArray( $1 ); }
	3095	;
[51b73452]	3096
[c0aa336]	3097	cfa_array_parameter_1st_dimension:
[c0a33d2]	3098	'[' push type_qualifier_list '*' pop ']' // remaining C99
	3099	{ $$ = DeclarationNode::newVarArray( $3 ); }
	3100	\| '[' push type_qualifier_list assignment_expression pop ']'
	3101	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	3102	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	3103	// declaration_qualifier_list must be used because of shift/reduce conflict with
	3104	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	3105	// appear in this context.
[c0a33d2]	3106	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	3107	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	3108	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	3109	;
[b87a5ed]	3110
[de62360d]	3111	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	3112	// identifier to which the type applies, e.g.:
[c11e31c]	3113	//
[b87a5ed]	3114	// [int] f( int ); // abstract variable parameter; no parameter name specified
	3115	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	3116	//
	3117	// These rules need LR(3):
	3118	//
[c0aa336]	3119	// cfa_abstract_tuple identifier_or_type_name
	3120	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_type_list_opt ')'
[c11e31c]	3121	//
	3122	// since a function return type can be syntactically identical to a tuple type:
	3123	//
[b87a5ed]	3124	// [int, int] t;
	3125	// [int, int] f( int );
[c11e31c]	3126	//
[2871210]	3127	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	3128	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	3129	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	3130	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	3131
[c0aa336]	3132	cfa_abstract_declarator_tuple: // CFA
	3133	cfa_abstract_tuple
	3134	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	3135	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	3136	\| cfa_abstract_declarator_no_tuple
[4d51835]	3137	;
[b87a5ed]	3138
[c0aa336]	3139	cfa_abstract_declarator_no_tuple: // CFA
	3140	cfa_abstract_ptr
	3141	\| cfa_abstract_array
[4d51835]	3142	;
[b87a5ed]	3143
[c0aa336]	3144	cfa_abstract_ptr: // CFA
[dd51906]	3145	ptrref_operator type_specifier
[ce8c12f]	3146	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3147	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	3148	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3149	\| ptrref_operator cfa_abstract_function
[ce8c12f]	3150	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3151	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	3152	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3153	\| ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	3154	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3155	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	3156	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	3157	;
[b87a5ed]	3158
[c0aa336]	3159	cfa_abstract_array: // CFA
[de62360d]	3160	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	3161	// empty (void) function return type.
[2871210]	3162	'[' ']' type_specifier
[2298f728]	3163	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	3164	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	3165	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	3166	\| multi_array_dimension type_specifier
	3167	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	3168	\| '[' ']' cfa_abstract_ptr
[2298f728]	3169	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	3170	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	3171	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	3172	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	3173	{ $$ = $2->addNewArray( $1 ); }
	3174	;
[b87a5ed]	3175
[c0aa336]	3176	cfa_abstract_tuple: // CFA
[c0a33d2]	3177	'[' push cfa_abstract_parameter_list pop ']'
	3178	{ $$ = DeclarationNode::newTuple( $3 ); }
[4d51835]	3179	;
[b87a5ed]	3180
[c0aa336]	3181	cfa_abstract_function: // CFA
	3182	// '[' ']' '(' cfa_parameter_type_list_opt ')'
[1b29996]	3183	// { $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
[c0a33d2]	3184	cfa_abstract_tuple '(' push cfa_parameter_type_list_opt pop ')'
	3185	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
	3186	\| cfa_function_return '(' push cfa_parameter_type_list_opt pop ')'
	3187	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	3188	;
[b87a5ed]	3189
[de62360d]	3190	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	3191	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	3192	//
[de62360d]	3193	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	3194	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	3195	//
	3196	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	3197	// prototype-format parameter type declarators) is an obsolescent feature."
	3198	//
[de62360d]	3199	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	3200	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	3201
[c11e31c]	3202	//*********************** MISCELLANEOUS ******************************
[51b73452]	3203
[b87a5ed]	3204	comma_opt: // redundant comma
[4d51835]	3205	// empty
	3206	\| ','
	3207	;
[51b73452]	3208
[994d080]	3209	default_initialize_opt:
[4d51835]	3210	// empty
[58dd019]	3211	{ $$ = nullptr; }
[4d51835]	3212	\| '=' assignment_expression
	3213	{ $$ = $2; }
	3214	;
[51b73452]	3215
	3216	%%
[c11e31c]	3217	// ----end of grammar----
[51b73452]	3218
[c11e31c]	3219	// Local Variables: //
[b87a5ed]	3220	// mode: c++ //
[de62360d]	3221	// tab-width: 4 //
[c11e31c]	3222	// compile-command: "make install" //
	3223	// End: //

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