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parser.yy @ dfa4360

ADTarm-ehast-experimentalenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprpthread-emulationqualifiedEnum

Last change on this file since dfa4360 was 427854b, checked in by Thierry Delisle <tdelisle@…>, 4 years ago
First draft implementation of generators, still missing error checking, testing and clean-up
Property mode set to `100644`
File size: 136.3 KB

Rev	Line
[b87a5ed]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[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
[aeb5d0d]	12	// Last Modified On : Wed Feb 26 14:27:39 2020
	13	// Update Count : 4472
[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.
[51b7345]	41
	42	%{
[b87a5ed]	43	#define YYDEBUG_LEXER_TEXT (yylval) // lexer loads this up each time
	44	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	45	#define YYERROR_VERBOSE // more information in syntax errors
[51b7345]	46
	47	#undef __GNUC_MINOR__
	48
	49	#include <cstdio>
	50	#include <stack>
[9ed4f94]	51	using namespace std;
	52
[312029a]	53	#include "SynTree/Declaration.h"
[51b7345]	54	#include "ParseNode.h"
[984dce6]	55	#include "TypedefTable.h"
[1db21619]	56	#include "TypeData.h"
[07de76b]	57	#include "SynTree/LinkageSpec.h"
[9ed4f94]	58	#include "Common/SemanticError.h" // error_str
[513e165]	59	#include "Common/utility.h" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b7345]	60
[cbaee0d]	61	extern DeclarationNode * parseTree;
[8b7ee09]	62	extern LinkageSpec::Spec linkage;
[0da3e2c]	63	extern TypedefTable typedefTable;
	64
[2298f728]	65	stack< LinkageSpec::Spec > linkageStack;
[7bf7fb9]	66
[15697ff]	67	bool appendStr( string & to, string & from ) {
	68	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	69	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	70	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	71	// easier to let the C compiler handle this case.
	72	//
	73	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	74	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
	75	// i.e., u"a" U"b" L"c" is disallowed.
	76
	77	if ( from[0] != '"' ) { // encoding ?
	78	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	79	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	80	yyerror( "non-matching string encodings for string-literal concatenation" );
	81	return false; // parse error, must call YYERROR in action
[ea0c5e3]	82	} else if ( from[1] == '8' ) {
	83	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	84	} // if
	85	} else {
[ea0c5e3]	86	if ( from[1] == '8' ) { // move encoding to start
	87	to = "u8" + to;
	88	from.erase( 0, 1 ); // remove 2nd encoding
	89	} else {
	90	to = from[0] + to;
	91	} // if
[15697ff]	92	} // if
	93	from.erase( 0, 1 ); // remove 2nd encoding
	94	} // if
	95	to += " " + from; // concatenated into single string
	96	return true;
[7bf7fb9]	97	} // appendStr
[c0aa336]	98
	99	DeclarationNode * distAttr( DeclarationNode * specifier, DeclarationNode * declList ) {
	100	// distribute declaration_specifier across all declared variables, e.g., static, const, __attribute__.
	101	DeclarationNode * cur = declList, * cl = (new DeclarationNode)->addType( specifier );
[6d01d89]	102	for ( cur = dynamic_cast<DeclarationNode >( cur->get_next() ); cur != nullptr; cur = dynamic_cast<DeclarationNode >( cur->get_next() ) ) {
[c0aa336]	103	cl->cloneBaseType( cur );
	104	} // for
	105	declList->addType( cl );
	106	return declList;
	107	} // distAttr
	108
	109	void distExt( DeclarationNode * declaration ) {
	110	// distribute EXTENSION across all declarations
	111	for ( DeclarationNode iter = declaration; iter != nullptr; iter = (DeclarationNode )iter->get_next() ) {
	112	iter->set_extension( true );
	113	} // for
	114	} // distExt
[fdca7c6]	115
[e07caa2]	116	void distInl( DeclarationNode * declaration ) {
	117	// distribute EXTENSION across all declarations
	118	for ( DeclarationNode iter = declaration; iter != nullptr; iter = (DeclarationNode )iter->get_next() ) {
	119	iter->set_inLine( true );
	120	} // for
	121	} // distInl
	122
[4c3ee8d]	123	void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) {
[284da8c]	124	// distribute qualifiers across all non-variable declarations in a distribution statemement
[4c3ee8d]	125	for ( DeclarationNode * iter = declaration; iter != nullptr; iter = (DeclarationNode *)iter->get_next() ) {
[284da8c]	126	// SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since
	127	// addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To
	128	// get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to
	129	// be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers.
	130	DeclarationNode * clone = qualifiers->clone();
	131	if ( qualifiers->type ) { // forall clause ? (handles SC)
	132	if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ?
	133	swap( clone->type->forall, iter->type->aggregate.params );
	134	iter->addQualifiers( clone );
	135	} else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ?
	136	// Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together.
	137	DeclarationNode newnode;
	138	swap( newnode.type, iter->type->aggInst.aggregate );
	139	swap( clone->type->forall, newnode.type->aggregate.params );
	140	newnode.addQualifiers( clone );
	141	swap( newnode.type, iter->type->aggInst.aggregate );
	142	} else if ( iter->type->kind == TypeData::Function ) { // routines ?
	143	swap( clone->type->forall, iter->type->forall );
	144	iter->addQualifiers( clone );
	145	} // if
	146	} else { // just SC qualifiers
	147	iter->addQualifiers( clone );
	148	} // if
[4c3ee8d]	149	} // for
[284da8c]	150	delete qualifiers;
	151	} // distQual
[4c3ee8d]	152
[c38ae92]	153	// There is an ambiguity for inline generic-routine return-types and generic routines.
	154	// forall( otype T ) struct S { int i; } bar( T ) {}
	155	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	156	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e]	157	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	158	// forall( otype T ) struct S { int T; };
	159	// forall( otype W ) bar( W ) {}
[c38ae92]	160
	161	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e]	162	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	163	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	164	declSpec->type->aggregate.params = nullptr;
	165	} // if
	166	} // rebindForall
	167
[60a8062]	168	string * build_postfix_name( string * name ) {
	169	name = string("__postfix_func_") + name;
	170	return name;
[dc7db63]	171	} // build_postfix_name
	172
[f7e4db27]	173	DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) {
	174	if ( ! fieldList ) { // field declarator ?
[553772b]	175	if ( ! ( typeSpec->type && (typeSpec->type->kind == TypeData::Aggregate \|\| typeSpec->type->kind == TypeData::Enum) ) ) {
[f7e4db27]	176	stringstream ss;
	177	typeSpec->type->print( ss );
	178	SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() );
	179	return nullptr;
	180	} // if
	181	fieldList = DeclarationNode::newName( nullptr );
	182	} // if
	183	return distAttr( typeSpec, fieldList ); // mark all fields in list
	184	} // fieldDecl
	185
[cc22003]	186	ForCtrl * forCtrl( ExpressionNode * type, string * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1dda8de]	187	ConstantExpr * constant = dynamic_cast<ConstantExpr *>(type->expr.get());
[0982a05]	188	if ( constant && (constant->get_constant()->get_value() == "0" \|\| constant->get_constant()->get_value() == "1") ) {
	189	type = new ExpressionNode( new CastExpr( maybeMoveBuild< Expression >(type), new BasicType( Type::Qualifiers(), BasicType::SignedInt ) ) );
	190	} // if
[f271bdd]	191	return new ForCtrl(
[5753b33]	192	distAttr( DeclarationNode::newTypeof( type, true ), DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) ) ),
[2d2df9f]	193	// NULL comp/inc => leave blank
	194	comp ? new ExpressionNode( build_binary_val( compop, new ExpressionNode( build_varref( new string( *index ) ) ), comp ) ) : 0,
	195	inc ? new ExpressionNode( build_binary_val( compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? // choose += or -= for upto/downto
	196	OperKinds::PlusAssn : OperKinds::MinusAssn, new ExpressionNode( build_varref( new string( *index ) ) ), inc ) ) : 0 );
[f271bdd]	197	} // forCtrl
	198
[f1aeede]	199	ForCtrl * forCtrl( ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1dda8de]	200	if ( NameExpr * identifier = dynamic_cast<NameExpr *>(index->expr.get()) ) {
[f1aeede]	201	return forCtrl( type, new string( identifier->name ), start, compop, comp, inc );
[1dda8de]	202	} else if ( CommaExpr * commaExpr = dynamic_cast<CommaExpr *>(index->expr.get()) ) {
[6d01d89]	203	if ( NameExpr * identifier = dynamic_cast<NameExpr *>(commaExpr->arg1 ) ) {
	204	return forCtrl( type, new string( identifier->name ), start, compop, comp, inc );
	205	} else {
	206	SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); return nullptr;
	207	} // if
[f1aeede]	208	} else {
	209	SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); return nullptr;
	210	} // if
[f271bdd]	211	} // forCtrl
	212
[fc20514]	213	bool forall = false, yyy = false; // aggregate have one or more forall qualifiers ?
[d48e529]	214
[201aeb9]	215	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	216	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	217	if ( N ) { \
	218	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	219	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	220	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	221	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	222	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	223	} else { \
	224	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	225	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	226	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	227	}
[51b7345]	228	%}
	229
[15697ff]	230	%define parse.error verbose
	231
[201aeb9]	232	// Types declaration for productions
[0982a05]	233	%union {
[a67b60e]	234	Token tok;
	235	ParseNode * pn;
	236	ExpressionNode * en;
	237	DeclarationNode * decl;
[312029a]	238	AggregateDecl::Aggregate aggKey;
[07de76b]	239	TypeDecl::Kind tclass;
[a67b60e]	240	StatementNode * sn;
[135b431]	241	WaitForStmt * wfs;
[e612146c]	242	Expression * constant;
[f271bdd]	243	IfCtrl * ifctl;
	244	ForCtrl * fctl;
[cc22003]	245	enum OperKinds compop;
[a67b60e]	246	LabelNode * label;
	247	InitializerNode * in;
	248	OperKinds op;
	249	std::string * str;
	250	bool flag;
[307a732]	251	CatchStmt::Kind catch_kind;
[d807ca28]	252	GenericExpr * genexpr;
[a67b60e]	253	}
	254
[c11e31c]	255	//*********************** TERMINAL TOKENS ******************************
[51b7345]	256
[c11e31c]	257	// keywords
[51b7345]	258	%token TYPEDEF
[a7c90d4]	259	%token EXTERN STATIC AUTO REGISTER
	260	%token THREADLOCAL // C11
	261	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	262	%token NORETURN // C11
[51b7345]	263	%token CONST VOLATILE
[b87a5ed]	264	%token RESTRICT // C99
[a7c90d4]	265	%token ATOMIC // C11
[1528a2c]	266	%token FORALL MUTEX VIRTUAL COERCE // CFA
[72457b6]	267	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	268	%token BOOL COMPLEX IMAGINARY // C99
[f1da02c]	269	%token INT128 UINT128 uuFLOAT80 uuFLOAT128 // GCC
[e15853c]	270	%token uFLOAT16 uFLOAT32 uFLOAT32X uFLOAT64 uFLOAT64X uFLOAT128 // GCC
[72457b6]	271	%token ZERO_T ONE_T // CFA
	272	%token VALIST // GCC
[f673c13c]	273	%token AUTO_TYPE // GCC
[ee27df2]	274	%token TYPEOF BASETYPEOF LABEL // GCC
[51b7345]	275	%token ENUM STRUCT UNION
[c27fb59]	276	%token EXCEPTION // CFA
[553772b]	277	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	278	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[5721a6d]	279	%token SIZEOF OFFSETOF
[37cdd97]	280	// %token RESUME // CFA
	281	%token SUSPEND // CFA
[b87a5ed]	282	%token ATTRIBUTE EXTENSION // GCC
[51b7345]	283	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[114014c]	284	%token CHOOSE DISABLE ENABLE FALLTHRU FALLTHROUGH TRY CATCH CATCHRESUME FINALLY THROW THROWRESUME AT WITH WHEN WAITFOR // CFA
[b87a5ed]	285	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	286	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b7345]	287
[c11e31c]	288	// names and constants: lexer differentiates between identifier and typedef names
[b87a5ed]	289	%token<tok> IDENTIFIER QUOTED_IDENTIFIER TYPEDEFname TYPEGENname
[5b2edbc]	290	%token<tok> TIMEOUT WOR
[1b29996]	291	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	292	%token<tok> DIRECTIVE
[1b29996]	293	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	294	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	295	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	296	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b7345]	297
[c11e31c]	298	// multi-character operators
[b87a5ed]	299	%token ARROW // ->
	300	%token ICR DECR // ++ --
	301	%token LS RS // << >>
	302	%token LE GE EQ NE // <= >= == !=
	303	%token ANDAND OROR // && \|\|
	304	%token ELLIPSIS // ...
	305
[e5f2a67]	306	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	307	%token PLUSassign MINUSassign // += -=
	308	%token LSassign RSassign // <<= >>=
	309	%token ANDassign ERassign ORassign // &= ^= \|=
[51b7345]	310
[d69f4bb]	311	%token ErangeUpEq ErangeDown ErangeDownEq // ~= -~ -~=
[e7aed49]	312	%token ATassign // @=
[097e2b0]	313
[033ff37]	314	%type<tok> identifier
	315	%type<tok> identifier_or_type_name attr_name
[5b2edbc]	316	%type<tok> quasi_keyword
[ab57786]	317	%type<constant> string_literal
	318	%type<str> string_literal_list
[51b7345]	319
[c11e31c]	320	// expressions
[d1625f8]	321	%type<en> constant
[b87a5ed]	322	%type<en> tuple tuple_expression_list
[9706554]	323	%type<op> ptrref_operator unary_operator assignment_operator
[b87a5ed]	324	%type<en> primary_expression postfix_expression unary_expression
[4a063df]	325	%type<en> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
[994d080]	326	%type<en> shift_expression relational_expression equality_expression
	327	%type<en> AND_expression exclusive_OR_expression inclusive_OR_expression
	328	%type<en> logical_AND_expression logical_OR_expression
	329	%type<en> conditional_expression constant_expression assignment_expression assignment_expression_opt
[b87a5ed]	330	%type<en> comma_expression comma_expression_opt
[994d080]	331	%type<en> argument_expression_list argument_expression default_initialize_opt
[936e9f4]	332	%type<ifctl> if_control_expression
[6d01d89]	333	%type<fctl> for_control_expression for_control_expression_list
[cc22003]	334	%type<compop> inclexcl
[51b7345]	335	%type<en> subrange
[c0aa336]	336	%type<decl> asm_name_opt
[67d4e37]	337	%type<en> asm_operands_opt asm_operands_list asm_operand
[7f5566b]	338	%type<label> label_list
[d1625f8]	339	%type<en> asm_clobbers_list_opt
[7f5566b]	340	%type<flag> asm_volatile_opt
[cbce272]	341	%type<en> handler_predicate_opt
[67d4e37]	342	%type<genexpr> generic_association generic_assoc_list
[51b7345]	343
[c11e31c]	344	// statements
[9bd6105]	345	%type<sn> statement labeled_statement compound_statement
	346	%type<sn> statement_decl statement_decl_list statement_list_nodecl
[3d26610]	347	%type<sn> selection_statement if_statement
[6a276a0]	348	%type<sn> switch_clause_list_opt switch_clause_list
[9bd6105]	349	%type<en> case_value
	350	%type<sn> case_clause case_value_list case_label case_label_list
[8b47e50]	351	%type<sn> iteration_statement jump_statement
[9bd6105]	352	%type<sn> expression_statement asm_statement
[c453ac4]	353	%type<sn> with_statement
	354	%type<en> with_clause_opt
[51d6d6a]	355	%type<sn> exception_statement handler_clause finally_clause
	356	%type<catch_kind> handler_key
[b6b3c42]	357	%type<sn> mutex_statement
[9bd6105]	358	%type<en> when_clause when_clause_opt waitfor timeout
[135b431]	359	%type<sn> waitfor_statement
[51d6d6a]	360	%type<wfs> waitfor_clause
[51b7345]	361
[c11e31c]	362	// declarations
[c0aa336]	363	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
	364	%type<decl> abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension
	365	%type<decl> abstract_parameter_declaration
[51b7345]	366
[e307e12]	367	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	368	%type<decl> aggregate_type aggregate_type_nobody
[51b7345]	369
[9997fee]	370	%type<decl> assertion assertion_list assertion_list_opt
[51b7345]	371
	372	%type<en> bit_subrange_size_opt bit_subrange_size
	373
[84d58c5]	374	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[51b7345]	375
[4040425]	376	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b7345]	377
	378	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	379	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b7345]	380
[d0ffed1]	381	%type<decl> elaborated_type elaborated_type_nobody
[51b7345]	382
[d0ffed1]	383	%type<decl> enumerator_list enum_type enum_type_nobody
[51b7345]	384	%type<en> enumerator_value_opt
	385
[3d56d15b]	386	%type<decl> external_definition external_definition_list external_definition_list_opt
	387
	388	%type<decl> exception_declaration
[51b7345]	389
[e07caa2]	390	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[679e644]	391	%type<en> field field_name_list field_name fraction_constants_opt
[51b7345]	392
[4d51835]	393	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b7345]	394
[d3bc0ad]	395	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	396	%type<decl> identifier_list
[51b7345]	397
[c0aa336]	398	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	399	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	400	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b7345]	401
[c0aa336]	402	%type<decl> cfa_array_parameter_1st_dimension
[51b7345]	403
[679e644]	404	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	405	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b7345]	406
[c0aa336]	407	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	408	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b7345]	409
[40de461]	410	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_ellipsis_list_opt
[51b7345]	411
[c0aa336]	412	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b7345]	413
[b9be000b]	414	%type<decl> c_declaration static_assert
[c0aa336]	415	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	416	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b7345]	417
[2a8427c6]	418	%type<decl> parameter_declaration parameter_list parameter_type_list_opt
[51b7345]	419
[2871210]	420	%type<decl> paren_identifier paren_type
[51b7345]	421
[0da3e2c]	422	%type<decl> storage_class storage_class_list
[51b7345]	423
[d0ffed1]	424	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b7345]	425
	426	%type<tclass> type_class
	427	%type<decl> type_declarator type_declarator_name type_declaring_list
	428
[84d58c5]	429	%type<decl> type_declaration_specifier type_type_specifier type_name typegen_name
	430	%type<decl> typedef typedef_declaration typedef_expression
[c0aa336]	431
	432	%type<decl> variable_type_redeclarator type_ptr type_array type_function
	433
	434	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b7345]	435
[84d58c5]	436	%type<decl> type type_no_function
	437	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b7345]	438
[284da8c]	439	%type<en> type_parameters_opt type_list
[51b7345]	440
[a16a7ec]	441	%type<decl> type_qualifier type_qualifier_name forall type_qualifier_list_opt type_qualifier_list
[d3bc0ad]	442	%type<decl> type_specifier type_specifier_nobody
[51b7345]	443
[c0aa336]	444	%type<decl> variable_declarator variable_ptr variable_array variable_function
	445	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b7345]	446
[44a81853]	447	%type<decl> attribute_list_opt attribute_list attribute_name_list attribute attribute_name
[1db21619]	448
[c11e31c]	449	// initializers
[7fdb94e]	450	%type<in> initializer initializer_list_opt initializer_opt
[51b7345]	451
[c11e31c]	452	// designators
[51b7345]	453	%type<en> designator designator_list designation
	454
	455
[65d6de4]	456	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	457	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	458	// if ( C ) S1 else S2
	459	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	460	// Similar issues exit with the waitfor statement.
[51b7345]	461
[1efa1e1]	462	// Order of these lines matters (low-to-high precedence). THEN is left associative over WOR/TIMEOUT/ELSE, WOR is left
	463	// associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[5b2edbc]	464	%precedence THEN // rule precedence for IF/WAITFOR statement
	465	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	466	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	467	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
[51b7345]	468
[65d6de4]	469	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	470	// forall( otype T ) struct Foo { T v; };
	471	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	472	// Foo ( *fp )( int );
	473	// `---' matches start of TYPEGENname '('
[fc20514]	474	// must be:
[a16a7ec]	475	// Foo( int ) ( *fp )( int );
[fc20514]	476	// The same problem occurs here:
	477	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	478	// must be:
	479	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	480
	481	// Order of these lines matters (low-to-high precedence).
	482	%precedence TYPEGENname
[284da8c]	483	%precedence '}'
[65d6de4]	484	%precedence '('
	485
[c786e1d]	486	// %precedence RESUME
	487	// %precedence '{'
	488	// %precedence ')'
	489
[f38e7d7]	490	%locations // support location tracking for error messages
[930f69e]	491
[b87a5ed]	492	%start translation_unit // parse-tree root
[51b7345]	493
	494	%%
[c11e31c]	495	//*********************** Namespace Management ******************************
	496
[3d26610]	497	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	498	// which are lexically identical.
[c11e31c]	499	//
[3d26610]	500	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	501	// foo f; // to allow it to appear in this context
[c11e31c]	502	//
[3d26610]	503	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	504	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	505	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	506	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	507	// must be distinguished by the lexical scanner.
[c11e31c]	508	//
[3d26610]	509	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	510	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	511	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	512	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	513	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	514	// This requires distinguishing between type names that are local to the current declaration scope and those that
	515	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	516	//
[3d26610]	517	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	518	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	519	// around the list separator.
	520	//
	521	// int f( forall(T) T (f1) T , forall( S ) S (f2)( S ) );
	522	// push pop push pop
[51b7345]	523
	524	push:
[ab57786]	525	{ typedefTable.enterScope(); }
[4d51835]	526	;
[51b7345]	527
	528	pop:
[ab57786]	529	{ typedefTable.leaveScope(); }
[4d51835]	530	;
[51b7345]	531
[c11e31c]	532	//*********************** CONSTANTS ******************************
[51b7345]	533
	534	constant:
[de62360d]	535	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[ab57786]	536	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( *$1 ) ); }
[930f69e]	537	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	538	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
[ab57786]	539	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( *$1 ) ); }
	540	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( *$1 ) ); }
[4d51835]	541	;
[51b7345]	542
[5b2edbc]	543	quasi_keyword: // CFA
	544	TIMEOUT
	545	\| WOR
	546	;
	547
[033ff37]	548	identifier:
[4d51835]	549	IDENTIFIER
[5b2edbc]	550	\| quasi_keyword
[679e644]	551	\| '@' // CFA
	552	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	553	;
[51b7345]	554
[ab57786]	555	string_literal:
	556	string_literal_list { $$ = build_constantStr( *$1 ); }
	557	;
	558
[b87a5ed]	559	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	560	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	561	\| string_literal_list STRINGliteral
	562	{
[15697ff]	563	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	564	delete $2; // allocated by lexer
[ab57786]	565	$$ = $1; // conversion from tok to str
[7bf7fb9]	566	}
[4d51835]	567	;
[51b7345]	568
[c11e31c]	569	//*********************** EXPRESSIONS ******************************
[51b7345]	570
	571	primary_expression:
[4d51835]	572	IDENTIFIER // typedef name cannot be used as a variable name
[d1625f8]	573	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[5b2edbc]	574	\| quasi_keyword
	575	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[1b29996]	576	\| tuple
[4d51835]	577	\| '(' comma_expression ')'
	578	{ $$ = $2; }
	579	\| '(' compound_statement ')' // GCC, lambda expression
[513e165]	580	{ $$ = new ExpressionNode( new StmtExpr( dynamic_cast< CompoundStmt * >(maybeMoveBuild< Statement >($2) ) ) ); }
[033ff37]	581	\| type_name '.' identifier // CFA, nested type
[203c667]	582	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[679e644]	583	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	584	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	585	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	586	{
	587	// add the missing control expression to the GenericExpr and return it
	588	$5->control = maybeMoveBuild<Expression>( $3 );
	589	$$ = new ExpressionNode( $5 );
	590	}
[c786e1d]	591	// \| RESUME '(' comma_expression ')'
	592	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	593	// \| RESUME '(' comma_expression ')' compound_statement
	594	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	595	;
	596
	597	generic_assoc_list: // C11
[d807ca28]	598	generic_association
[24c3b67]	599	\| generic_assoc_list ',' generic_association
[d807ca28]	600	{
	601	// steal the association node from the singleton and delete the wrapper
	602	$1->associations.splice($1->associations.end(), $3->associations);
	603	delete $3;
	604	$$ = $1;
	605	}
[24c3b67]	606	;
	607
	608	generic_association: // C11
	609	type_no_function ':' assignment_expression
[d807ca28]	610	{
	611	// create a GenericExpr wrapper with one association pair
	612	$$ = new GenericExpr( nullptr, { { maybeMoveBuildType($1), maybeMoveBuild<Expression>($3) } } );
	613	}
[24c3b67]	614	\| DEFAULT ':' assignment_expression
[d807ca28]	615	{ $$ = new GenericExpr( nullptr, { { maybeMoveBuild<Expression>($3) } } ); }
[4d51835]	616	;
[51b7345]	617
	618	postfix_expression:
[4d51835]	619	primary_expression
[7fdb94e]	620	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	621	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	622	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	623	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	624	// equivalent to the old x[i,j].
[7fdb94e]	625	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Index, $1, $3 ) ); }
[bd3d9e4]	626	\| postfix_expression '{' argument_expression_list '}' // CFA, constructor call
	627	{
	628	Token fn;
	629	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
	630	$$ = new ExpressionNode( new ConstructorExpr( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $1 )->set_last( $3 ) ) ) );
	631	}
[4d51835]	632	\| postfix_expression '(' argument_expression_list ')'
[d1625f8]	633	{ $$ = new ExpressionNode( build_func( $1, $3 ) ); }
[948fdef]	634	\| postfix_expression '`' identifier // CFA, postfix call
[60a8062]	635	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	636	\| constant '`' identifier // CFA, postfix call
[60a8062]	637	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	638	\| string_literal '`' identifier // CFA, postfix call
[60a8062]	639	{ $$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( build_postfix_name( $3 ) ) ), new ExpressionNode( $1 ) ) ); }
[033ff37]	640	\| postfix_expression '.' identifier
[d1625f8]	641	{ $$ = new ExpressionNode( build_fieldSel( $1, build_varref( $3 ) ) ); }
[df22130]	642	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
	643	{ $$ = new ExpressionNode( build_fieldSel( $1, build_constantInteger( *$3 ) ) ); }
[930f69e]	644	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
	645	{ $$ = new ExpressionNode( build_fieldSel( $1, build_field_name_FLOATING_FRACTIONconstant( *$2 ) ) ); }
[679e644]	646	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[7fdb94e]	647	{ $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); }
[e307e12]	648	\| postfix_expression '.' aggregate_control
[312029a]	649	{ $$ = new ExpressionNode( build_keyword_cast( $3, $1 ) ); }
[033ff37]	650	\| postfix_expression ARROW identifier
[ee27df2]	651	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_varref( $3 ) ) ); }
[861799c]	652	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
	653	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_constantInteger( *$3 ) ) ); }
[679e644]	654	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[7fdb94e]	655	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); }
[4d51835]	656	\| postfix_expression ICR
[d1625f8]	657	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::IncrPost, $1 ) ); }
[4d51835]	658	\| postfix_expression DECR
[d1625f8]	659	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::DecrPost, $1 ) ); }
[7fdb94e]	660	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[d1625f8]	661	{ $$ = new ExpressionNode( build_compoundLiteral( $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e]	662	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[f810e09]	663	{ $$ = new ExpressionNode( build_compoundLiteral( $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[948fdef]	664	\| '^' primary_expression '{' argument_expression_list '}' // CFA, destructor call
[097e2b0]	665	{
[9706554]	666	Token fn;
[ecb27a7]	667	fn.str = new string( "^?{}" ); // location undefined
	668	$$ = new ExpressionNode( build_func( new ExpressionNode( build_varref( fn ) ), (ExpressionNode *)( $2 )->set_last( $4 ) ) );
[097e2b0]	669	}
[4d51835]	670	;
[51b7345]	671
	672	argument_expression_list:
[757ffed]	673	// empty
	674	{ $$ = nullptr; }
	675	\| argument_expression
[4d51835]	676	\| argument_expression_list ',' argument_expression
[4a063df]	677	{ $$ = (ExpressionNode *)($1->set_last( $3 )); }
[4d51835]	678	;
[51b7345]	679
	680	argument_expression:
[757ffed]	681	'@' // CFA, default parameter
[679e644]	682	{ SemanticError( yylloc, "Default parameter for argument is currently unimplemented." ); $$ = nullptr; }
	683	// { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); }
[4d51835]	684	\| assignment_expression
	685	;
[b87a5ed]	686
[679e644]	687	field_name_list: // CFA, tuple field selector
[4d51835]	688	field
[4a063df]	689	\| field_name_list ',' field { $$ = (ExpressionNode *)($1->set_last( $3 )); }
[4d51835]	690	;
[b87a5ed]	691
	692	field: // CFA, tuple field selector
[faddbd8]	693	field_name
[930f69e]	694	\| FLOATING_DECIMALconstant field
	695	{ $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), maybeMoveBuild<Expression>( $2 ) ) ); }
[679e644]	696	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[7fdb94e]	697	{ $$ = new ExpressionNode( build_fieldSel( new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( *$1 ) ), build_tuple( $3 ) ) ); }
[faddbd8]	698	\| field_name '.' field
[bf32bb8]	699	{ $$ = new ExpressionNode( build_fieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); }
[679e644]	700	\| field_name '.' '[' field_name_list ']'
[7fdb94e]	701	{ $$ = new ExpressionNode( build_fieldSel( $1, build_tuple( $4 ) ) ); }
[faddbd8]	702	\| field_name ARROW field
[bf32bb8]	703	{ $$ = new ExpressionNode( build_pfieldSel( $1, maybeMoveBuild<Expression>( $3 ) ) ); }
[679e644]	704	\| field_name ARROW '[' field_name_list ']'
[7fdb94e]	705	{ $$ = new ExpressionNode( build_pfieldSel( $1, build_tuple( $4 ) ) ); }
[4d51835]	706	;
[51b7345]	707
[faddbd8]	708	field_name:
[df22130]	709	INTEGERconstant fraction_constants_opt
[8780e30]	710	{ $$ = new ExpressionNode( build_field_name_fraction_constants( build_constantInteger( *$1 ), $2 ) ); }
[df22130]	711	\| FLOATINGconstant fraction_constants_opt
[8780e30]	712	{ $$ = new ExpressionNode( build_field_name_fraction_constants( build_field_name_FLOATINGconstant( *$1 ), $2 ) ); }
[033ff37]	713	\| identifier fraction_constants_opt
[4cb935e]	714	{
[84d58c5]	715	$$ = new ExpressionNode( build_field_name_fraction_constants( build_varref( $1 ), $2 ) );
	716	}
[1b29996]	717	;
	718
[df22130]	719	fraction_constants_opt:
[1b29996]	720	// empty
[8780e30]	721	{ $$ = nullptr; }
[df22130]	722	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	723	{
[930f69e]	724	Expression * constant = build_field_name_FLOATING_FRACTIONconstant( *$2 );
[8780e30]	725	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( $1, constant ) ) : new ExpressionNode( constant );
	726	}
[faddbd8]	727	;
	728
[51b7345]	729	unary_expression:
[4d51835]	730	postfix_expression
[c6b1105]	731	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	732	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	733	\| constant
[ab57786]	734	\| string_literal
[d1625f8]	735	{ $$ = new ExpressionNode( $1 ); }
[4d51835]	736	\| EXTENSION cast_expression // GCC
[e04ef3a]	737	{ $$ = $2->set_extension( true ); }
[c6b1105]	738	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	739	// { * X; } // dereference X
	740	// { * int X; } // CFA declaration of pointer to int
[51e076e]	741	\| ptrref_operator cast_expression // CFA
[9706554]	742	{
	743	switch ( $1 ) {
[d9e2280]	744	case OperKinds::AddressOf:
[db70fe4]	745	$$ = new ExpressionNode( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) );
[9706554]	746	break;
[d9e2280]	747	case OperKinds::PointTo:
[d1625f8]	748	$$ = new ExpressionNode( build_unary_val( $1, $2 ) );
[9706554]	749	break;
[5809461]	750	case OperKinds::And:
[db70fe4]	751	$$ = new ExpressionNode( new AddressExpr( new AddressExpr( maybeMoveBuild< Expression >( $2 ) ) ) );
[5809461]	752	break;
[9706554]	753	default:
	754	assert( false );
	755	}
	756	}
[4d51835]	757	\| unary_operator cast_expression
[d1625f8]	758	{ $$ = new ExpressionNode( build_unary_val( $1, $2 ) ); }
[dd51906]	759	\| ICR unary_expression
[d1625f8]	760	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Incr, $2 ) ); }
[dd51906]	761	\| DECR unary_expression
[d1625f8]	762	{ $$ = new ExpressionNode( build_unary_ptr( OperKinds::Decr, $2 ) ); }
[4d51835]	763	\| SIZEOF unary_expression
[db70fe4]	764	{ $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuild< Expression >( $2 ) ) ); }
[84d58c5]	765	\| SIZEOF '(' type_no_function ')'
[db70fe4]	766	{ $$ = new ExpressionNode( new SizeofExpr( maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	767	\| ALIGNOF unary_expression // GCC, variable alignment
[db70fe4]	768	{ $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuild< Expression >( $2 ) ) ); }
[a2e0687]	769	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[db70fe4]	770	{ $$ = new ExpressionNode( new AlignofExpr( maybeMoveBuildType( $3 ) ) ); }
[033ff37]	771	\| OFFSETOF '(' type_no_function ',' identifier ')'
[d1625f8]	772	{ $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) ); }
[4d51835]	773	;
[51b7345]	774
[dd51906]	775	ptrref_operator:
[d9e2280]	776	'*' { $$ = OperKinds::PointTo; }
	777	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	778	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	779	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	780	;
	781
[51b7345]	782	unary_operator:
[d9e2280]	783	'+' { $$ = OperKinds::UnPlus; }
	784	\| '-' { $$ = OperKinds::UnMinus; }
	785	\| '!' { $$ = OperKinds::Neg; }
	786	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	787	;
[51b7345]	788
	789	cast_expression:
[4d51835]	790	unary_expression
[84d58c5]	791	\| '(' type_no_function ')' cast_expression
[d1625f8]	792	{ $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[e307e12]	793	\| '(' aggregate_control '&' ')' cast_expression // CFA
[312029a]	794	{ $$ = new ExpressionNode( build_keyword_cast( $2, $5 ) ); }
[72457b6]	795	// VIRTUAL cannot be opt because of look ahead issues
[fae90d5]	796	\| '(' VIRTUAL ')' cast_expression // CFA
[513e165]	797	{ $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $4 ), maybeMoveBuildType( nullptr ) ) ); }
[fae90d5]	798	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[513e165]	799	{ $$ = new ExpressionNode( new VirtualCastExpr( maybeMoveBuild< Expression >( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	800	\| '(' RETURN type_no_function ')' cast_expression // CFA
	801	{ SemanticError( yylloc, "Return cast is currently unimplemented." ); $$ = nullptr; }
	802	\| '(' COERCE type_no_function ')' cast_expression // CFA
	803	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	804	\| '(' qualifier_cast_list ')' cast_expression // CFA
	805	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	806	// \| '(' type_no_function ')' tuple
[1b29996]	807	// { $$ = new ExpressionNode( build_cast( $2, $4 ) ); }
[4d51835]	808	;
[51b7345]	809
[1528a2c]	810	qualifier_cast_list:
	811	cast_modifier type_qualifier_name
	812	\| cast_modifier MUTEX
	813	\| qualifier_cast_list cast_modifier type_qualifier_name
	814	\| qualifier_cast_list cast_modifier MUTEX
	815	;
	816
	817	cast_modifier:
	818	'-'
	819	\| '+'
	820	;
	821
[994d080]	822	exponential_expression:
[4d51835]	823	cast_expression
[994d080]	824	\| exponential_expression '\\' cast_expression
[e5f2a67]	825	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Exp, $1, $3 ) ); }
[994d080]	826	;
	827
	828	multiplicative_expression:
	829	exponential_expression
	830	\| multiplicative_expression '*' exponential_expression
[d1625f8]	831	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mul, $1, $3 ) ); }
[994d080]	832	\| multiplicative_expression '/' exponential_expression
[d1625f8]	833	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Div, $1, $3 ) ); }
[994d080]	834	\| multiplicative_expression '%' exponential_expression
[d1625f8]	835	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Mod, $1, $3 ) ); }
[4d51835]	836	;
[51b7345]	837
	838	additive_expression:
[4d51835]	839	multiplicative_expression
	840	\| additive_expression '+' multiplicative_expression
[d1625f8]	841	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Plus, $1, $3 ) ); }
[4d51835]	842	\| additive_expression '-' multiplicative_expression
[d1625f8]	843	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Minus, $1, $3 ) ); }
[4d51835]	844	;
[51b7345]	845
	846	shift_expression:
[4d51835]	847	additive_expression
	848	\| shift_expression LS additive_expression
[d1625f8]	849	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LShift, $1, $3 ) ); }
[4d51835]	850	\| shift_expression RS additive_expression
[d1625f8]	851	{ $$ = new ExpressionNode( build_binary_val( OperKinds::RShift, $1, $3 ) ); }
[4d51835]	852	;
[51b7345]	853
	854	relational_expression:
[4d51835]	855	shift_expression
	856	\| relational_expression '<' shift_expression
[d1625f8]	857	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LThan, $1, $3 ) ); }
[4d51835]	858	\| relational_expression '>' shift_expression
[d1625f8]	859	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GThan, $1, $3 ) ); }
[4d51835]	860	\| relational_expression LE shift_expression
[d1625f8]	861	{ $$ = new ExpressionNode( build_binary_val( OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	862	\| relational_expression GE shift_expression
[d1625f8]	863	{ $$ = new ExpressionNode( build_binary_val( OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	864	;
[51b7345]	865
	866	equality_expression:
[4d51835]	867	relational_expression
	868	\| equality_expression EQ relational_expression
[d1625f8]	869	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Eq, $1, $3 ) ); }
[4d51835]	870	\| equality_expression NE relational_expression
[d1625f8]	871	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Neq, $1, $3 ) ); }
[4d51835]	872	;
[51b7345]	873
	874	AND_expression:
[4d51835]	875	equality_expression
	876	\| AND_expression '&' equality_expression
[d1625f8]	877	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	878	;
[51b7345]	879
	880	exclusive_OR_expression:
[4d51835]	881	AND_expression
	882	\| exclusive_OR_expression '^' AND_expression
[d1625f8]	883	{ $$ = new ExpressionNode( build_binary_val( OperKinds::Xor, $1, $3 ) ); }
[4d51835]	884	;
[51b7345]	885
	886	inclusive_OR_expression:
[4d51835]	887	exclusive_OR_expression
	888	\| inclusive_OR_expression '\|' exclusive_OR_expression
[d1625f8]	889	{ $$ = new ExpressionNode( build_binary_val( OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	890	;
[51b7345]	891
	892	logical_AND_expression:
[4d51835]	893	inclusive_OR_expression
	894	\| logical_AND_expression ANDAND inclusive_OR_expression
[d1625f8]	895	{ $$ = new ExpressionNode( build_and_or( $1, $3, true ) ); }
[4d51835]	896	;
[51b7345]	897
	898	logical_OR_expression:
[4d51835]	899	logical_AND_expression
	900	\| logical_OR_expression OROR logical_AND_expression
[d1625f8]	901	{ $$ = new ExpressionNode( build_and_or( $1, $3, false ) ); }
[4d51835]	902	;
[51b7345]	903
	904	conditional_expression:
[4d51835]	905	logical_OR_expression
	906	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[d1625f8]	907	{ $$ = new ExpressionNode( build_cond( $1, $3, $5 ) ); }
[fae90d5]	908	// FIX ME: computes $1 twice
[4d51835]	909	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[d1625f8]	910	{ $$ = new ExpressionNode( build_cond( $1, $1, $4 ) ); }
[4d51835]	911	;
[51b7345]	912
	913	constant_expression:
[4d51835]	914	conditional_expression
	915	;
[51b7345]	916
	917	assignment_expression:
[4d51835]	918	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	919	conditional_expression
	920	\| unary_expression assignment_operator assignment_expression
[cda7889]	921	{ $$ = new ExpressionNode( build_binary_val( $2, $1, $3 ) ); }
[7fdb94e]	922	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5]	923	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	924	;
[51b7345]	925
	926	assignment_expression_opt:
[4d51835]	927	// empty
[d1625f8]	928	{ $$ = nullptr; }
[4d51835]	929	\| assignment_expression
	930	;
[b87a5ed]	931
[9706554]	932	assignment_operator:
[d9e2280]	933	'=' { $$ = OperKinds::Assign; }
[a839867]	934	\| ATassign { $$ = OperKinds::AtAssn; }
[e5f2a67]	935	\| EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	936	\| MULTassign { $$ = OperKinds::MulAssn; }
	937	\| DIVassign { $$ = OperKinds::DivAssn; }
	938	\| MODassign { $$ = OperKinds::ModAssn; }
	939	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	940	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	941	\| LSassign { $$ = OperKinds::LSAssn; }
	942	\| RSassign { $$ = OperKinds::RSAssn; }
	943	\| ANDassign { $$ = OperKinds::AndAssn; }
	944	\| ERassign { $$ = OperKinds::ERAssn; }
	945	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	946	;
[9706554]	947
[b87a5ed]	948	tuple: // CFA, tuple
[de62360d]	949	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	950	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	951	// '[' ']'
	952	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	953	// \| '[' push assignment_expression pop ']'
[1b29996]	954	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	955	'[' ',' tuple_expression_list ']'
	956	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)(new ExpressionNode( nullptr ) )->set_last( $3 ) ) ); }
	957	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[4a063df]	958	{ $$ = new ExpressionNode( build_tuple( (ExpressionNode *)($3->set_last( $6 ) ) )); }
[4d51835]	959	;
[51b7345]	960
	961	tuple_expression_list:
[4d51835]	962	assignment_expression_opt
	963	\| tuple_expression_list ',' assignment_expression_opt
[4a063df]	964	{ $$ = (ExpressionNode *)($1->set_last( $3 )); }
[4d51835]	965	;
[51b7345]	966
	967	comma_expression:
[4d51835]	968	assignment_expression
[9706554]	969	\| comma_expression ',' assignment_expression
[513e165]	970	{ $$ = new ExpressionNode( new CommaExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	971	;
[51b7345]	972
	973	comma_expression_opt:
[4d51835]	974	// empty
[58dd019]	975	{ $$ = nullptr; }
[4d51835]	976	\| comma_expression
	977	;
[51b7345]	978
[c11e31c]	979	//************************* STATEMENTS *****************************
[51b7345]	980
	981	statement:
[4d51835]	982	labeled_statement
	983	\| compound_statement
[c0a33d2]	984	\| expression_statement
[4d51835]	985	\| selection_statement
	986	\| iteration_statement
	987	\| jump_statement
[8b47e50]	988	\| with_statement
[b6b3c42]	989	\| mutex_statement
[5b2edbc]	990	\| waitfor_statement
[4d51835]	991	\| exception_statement
[2a8427c6]	992	\| enable_disable_statement
[fae90d5]	993	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	994	\| asm_statement
[61fc4f6]	995	\| DIRECTIVE
[6d539f83]	996	{ $$ = new StatementNode( build_directive( $1 ) ); }
[b9be000b]	997	;
[51b7345]	998
	999	labeled_statement:
[033ff37]	1000	// labels cannot be identifiers 0 or 1
[44a81853]	1001	identifier_or_type_name ':' attribute_list_opt statement
[6d01d89]	1002	{ $$ = $4->add_label( $1, $3 ); }
[4d51835]	1003	;
[51b7345]	1004
	1005	compound_statement:
[4d51835]	1006	'{' '}'
[e82aa9df]	1007	{ $$ = new StatementNode( build_compound( (StatementNode *)0 ) ); }
[35718a9]	1008	\| '{' push
[51b1202]	1009	local_label_declaration_opt // GCC, local labels
[9bd6105]	1010	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1011	pop '}'
[35718a9]	1012	{ $$ = new StatementNode( build_compound( $4 ) ); }
[4d51835]	1013	;
[b87a5ed]	1014
[9bd6105]	1015	statement_decl_list: // C99
	1016	statement_decl
[35718a9]	1017	\| statement_decl_list statement_decl
[6d01d89]	1018	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1019	;
[51b7345]	1020
[9bd6105]	1021	statement_decl:
[4d51835]	1022	declaration // CFA, new & old style declarations
[e82aa9df]	1023	{ $$ = new StatementNode( $1 ); }
[4d51835]	1024	\| EXTENSION declaration // GCC
[6d01d89]	1025	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1026	\| function_definition
[e82aa9df]	1027	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1028	\| EXTENSION function_definition // GCC
[6d01d89]	1029	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1030	\| statement
[4d51835]	1031	;
[51b7345]	1032
[9bd6105]	1033	statement_list_nodecl:
[4d51835]	1034	statement
[9bd6105]	1035	\| statement_list_nodecl statement
[6d01d89]	1036	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1037	;
[51b7345]	1038
	1039	expression_statement:
[4d51835]	1040	comma_expression_opt ';'
[e82aa9df]	1041	{ $$ = new StatementNode( build_expr( $1 ) ); }
[4d51835]	1042	;
[51b7345]	1043
	1044	selection_statement:
[3d26610]	1045	// pop causes a S/R conflict without separating the IF statement into a non-terminal even after resolving
	1046	// the inherent S/R conflict with THEN/ELSE.
	1047	push if_statement pop
	1048	{ $$ = $2; }
[4cc585b]	1049	\| SWITCH '(' comma_expression ')' case_clause
[6a276a0]	1050	{ $$ = new StatementNode( build_switch( true, $3, $5 ) ); }
[35718a9]	1051	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1052	{
[6a276a0]	1053	StatementNode *sw = new StatementNode( build_switch( true, $3, $8 ) );
[4e06c1e]	1054	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1055	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1056	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1057	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1058	// statement.
[a7741435]	1059	$$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	1060	}
[4d51835]	1061	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[6a276a0]	1062	{ $$ = new StatementNode( build_switch( false, $3, $5 ) ); }
[35718a9]	1063	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1064	{
[6a276a0]	1065	StatementNode *sw = new StatementNode( build_switch( false, $3, $8 ) );
[a7741435]	1066	$$ = $7 ? new StatementNode( build_compound( (StatementNode *)((new StatementNode( $7 ))->set_last( sw )) ) ) : sw;
[4e06c1e]	1067	}
[4d51835]	1068	;
[b87a5ed]	1069
[3d26610]	1070	if_statement:
	1071	IF '(' if_control_expression ')' statement %prec THEN
	1072	// explicitly deal with the shift/reduce conflict on if/else
	1073	{ $$ = new StatementNode( build_if( $3, $5, nullptr ) ); }
	1074	\| IF '(' if_control_expression ')' statement ELSE statement
	1075	{ $$ = new StatementNode( build_if( $3, $5, $7 ) ); }
	1076	;
	1077
[936e9f4]	1078	if_control_expression:
[35718a9]	1079	comma_expression
[f271bdd]	1080	{ $$ = new IfCtrl( nullptr, $1 ); }
[35718a9]	1081	\| c_declaration // no semi-colon
[f271bdd]	1082	{ $$ = new IfCtrl( $1, nullptr ); }
[35718a9]	1083	\| cfa_declaration // no semi-colon
[f271bdd]	1084	{ $$ = new IfCtrl( $1, nullptr ); }
[6d49ea3]	1085	\| declaration comma_expression // semi-colon separated
[f271bdd]	1086	{ $$ = new IfCtrl( $1, $2 ); }
[936e9f4]	1087	;
	1088
[de62360d]	1089	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1090	// clause allows a list of values and subranges.
[b87a5ed]	1091
	1092	case_value: // CFA
[4d51835]	1093	constant_expression { $$ = $1; }
	1094	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[db70fe4]	1095	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	1096	\| subrange // CFA, subrange
	1097	;
[b87a5ed]	1098
	1099	case_value_list: // CFA
[e82aa9df]	1100	case_value { $$ = new StatementNode( build_case( $1 ) ); }
[064e3ff]	1101	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[e82aa9df]	1102	\| case_value_list ',' case_value { $$ = (StatementNode *)($1->set_last( new StatementNode( build_case( $3 ) ) ) ); }
[4d51835]	1103	;
[b87a5ed]	1104
	1105	case_label: // CFA
[8688ce1]	1106	CASE case_value_list ':' { $$ = $2; }
[e82aa9df]	1107	\| DEFAULT ':' { $$ = new StatementNode( build_default() ); }
[4d51835]	1108	// A semantic check is required to ensure only one default clause per switch/choose statement.
	1109	;
[b87a5ed]	1110
[6a276a0]	1111	//label_list_opt:
	1112	// // empty
	1113	// \| identifier_or_type_name ':'
	1114	// \| label_list_opt identifier_or_type_name ':'
	1115	// ;
	1116
[b87a5ed]	1117	case_label_list: // CFA
[4d51835]	1118	case_label
[1d4580a]	1119	\| case_label_list case_label { $$ = (StatementNode *)( $1->set_last( $2 )); }
[4d51835]	1120	;
[b87a5ed]	1121
	1122	case_clause: // CFA
[e82aa9df]	1123	case_label_list statement { $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[4d51835]	1124	;
[b87a5ed]	1125
	1126	switch_clause_list_opt: // CFA
[4d51835]	1127	// empty
[58dd019]	1128	{ $$ = nullptr; }
[4d51835]	1129	\| switch_clause_list
	1130	;
[b87a5ed]	1131
	1132	switch_clause_list: // CFA
[9bd6105]	1133	case_label_list statement_list_nodecl
[e82aa9df]	1134	{ $$ = $1->append_last_case( new StatementNode( build_compound( $2 ) ) ); }
[9bd6105]	1135	\| switch_clause_list case_label_list statement_list_nodecl
[e82aa9df]	1136	{ $$ = (StatementNode *)( $1->set_last( $2->append_last_case( new StatementNode( build_compound( $3 ) ) ) ) ); }
[4d51835]	1137	;
[b87a5ed]	1138
[51b7345]	1139	iteration_statement:
[401e61f]	1140	WHILE '(' push if_control_expression ')' statement pop
	1141	{ $$ = new StatementNode( build_while( $4, $6 ) ); }
[f271bdd]	1142	\| WHILE '(' ')' statement // CFA => while ( 1 )
	1143	{ $$ = new StatementNode( build_while( new IfCtrl( nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ), $4 ) ); }
[4d51835]	1144	\| DO statement WHILE '(' comma_expression ')' ';'
[401e61f]	1145	{ $$ = new StatementNode( build_do_while( $5, $2 ) ); }
[f271bdd]	1146	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
	1147	{ $$ = new StatementNode( build_do_while( new ExpressionNode( build_constantInteger( *new string( "1" ) ) ), $2 ) ); }
[6d01d89]	1148	\| FOR '(' push for_control_expression_list ')' statement pop
[e82aa9df]	1149	{ $$ = new StatementNode( build_for( $4, $6 ) ); }
[f1aeede]	1150	\| FOR '(' ')' statement // CFA => for ( ;; )
	1151	{ $$ = new StatementNode( build_for( new ForCtrl( (ExpressionNode * )nullptr, (ExpressionNode * )nullptr, (ExpressionNode * )nullptr ), $4 ) ); }
[4d51835]	1152	;
[51b7345]	1153
[6d01d89]	1154	for_control_expression_list:
	1155	for_control_expression
	1156	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1157	// ForCtrl + ForCtrl:
	1158	// init + init => multiple declaration statements that are hoisted
	1159	// condition + condition => (expression) && (expression)
	1160	// change + change => (expression), (expression)
	1161	{
	1162	$1->init->set_last( $3->init );
	1163	if ( $1->condition ) {
	1164	if ( $3->condition ) {
	1165	$1->condition->expr.reset( new LogicalExpr( $1->condition->expr.release(), $3->condition->expr.release(), true ) );
	1166	} // if
	1167	} else $1->condition = $3->condition;
	1168	if ( $1->change ) {
	1169	if ( $3->change ) {
	1170	$1->change->expr.reset( new CommaExpr( $1->change->expr.release(), $3->change->expr.release() ) );
	1171	} // if
	1172	} else $1->change = $3->change;
	1173	$$ = $1;
	1174	}
[6d01d89]	1175	;
	1176
[51b7345]	1177	for_control_expression:
[6d01d89]	1178	';' comma_expression_opt ';' comma_expression_opt
	1179	{ $$ = new ForCtrl( (ExpressionNode * )nullptr, $2, $4 ); }
	1180	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
	1181	{ $$ = new ForCtrl( $1, $3, $5 ); }
	1182	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
	1183	{ $$ = new ForCtrl( $1, $2, $4 ); }
[67d4e37]	1184
[6d01d89]	1185	\| comma_expression // CFA
[f1aeede]	1186	{ $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ),
	1187	OperKinds::LThan, $1->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[9853d9b0]	1188	\| '=' comma_expression // CFA
	1189	{ $$ = forCtrl( $2, new string( DeclarationNode::anonymous.newName() ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ),
	1190	OperKinds::LEThan, $2->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[6d01d89]	1191	\| comma_expression inclexcl comma_expression // CFA
[ee27df2]	1192	{ $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[6d01d89]	1193	\| comma_expression inclexcl comma_expression '~' comma_expression // CFA
[cc22003]	1194	{ $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, $5 ); }
[f1aeede]	1195	\| comma_expression ';' comma_expression // CFA
	1196	{ $$ = forCtrl( $3, $1, new ExpressionNode( build_constantInteger( *new string( "0" ) ) ),
	1197	OperKinds::LThan, $3->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[332bd33]	1198	\| comma_expression ';' '=' comma_expression // CFA
	1199	{ $$ = forCtrl( $4, $1, new ExpressionNode( build_constantInteger( *new string( "0" ) ) ),
	1200	OperKinds::LEThan, $4->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[6d01d89]	1201	\| comma_expression ';' comma_expression inclexcl comma_expression // CFA
[f1aeede]	1202	{ $$ = forCtrl( $3, $1, $3->clone(), $4, $5, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[6d01d89]	1203	\| comma_expression ';' comma_expression inclexcl comma_expression '~' comma_expression // CFA
[f1aeede]	1204	{ $$ = forCtrl( $3, $1, $3->clone(), $4, $5, $7 ); }
[67d4e37]	1205
	1206	// There is a S/R conflicit if ~ and -~ are factored out.
	1207	\| comma_expression ';' comma_expression '~' '@' // CFA
	1208	{ $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
	1209	\| comma_expression ';' comma_expression ErangeDown '@' // CFA
	1210	{ $$ = forCtrl( $3, $1, $3->clone(), OperKinds::GThan, nullptr, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); }
[2d2df9f]	1211	\| comma_expression ';' comma_expression '~' '@' '~' comma_expression // CFA
	1212	{ $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, $7 ); }
[1b54b54]	1213	\| comma_expression ';' comma_expression ErangeDown '@' '~' comma_expression // CFA
	1214	{ $$ = forCtrl( $3, $1, $3->clone(), OperKinds::GThan, nullptr, $7 ); }
[2d2df9f]	1215	\| comma_expression ';' comma_expression '~' '@' '~' '@' // CFA
	1216	{ $$ = forCtrl( $3, $1, $3->clone(), OperKinds::LThan, nullptr, nullptr ); }
[d1625f8]	1217	;
[51b7345]	1218
[cc22003]	1219	inclexcl:
	1220	'~'
	1221	{ $$ = OperKinds::LThan; }
[d69f4bb]	1222	\| ErangeUpEq
[cc22003]	1223	{ $$ = OperKinds::LEThan; }
[d69f4bb]	1224	\| ErangeDown
	1225	{ $$ = OperKinds::GThan; }
	1226	\| ErangeDownEq
	1227	{ $$ = OperKinds::GEThan; }
[cc22003]	1228	;
	1229
[51b7345]	1230	jump_statement:
[44a81853]	1231	GOTO identifier_or_type_name ';'
[ab57786]	1232	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Goto ) ); }
[4d51835]	1233	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1234	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1235	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1236	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1237	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
	1238	\| fall_through_name ';' // CFA
	1239	{ $$ = new StatementNode( build_branch( BranchStmt::FallThrough ) ); }
	1240	\| fall_through_name identifier_or_type_name ';' // CFA
	1241	{ $$ = new StatementNode( build_branch( $2, BranchStmt::FallThrough ) ); }
	1242	\| fall_through_name DEFAULT ';' // CFA
	1243	{ $$ = new StatementNode( build_branch( BranchStmt::FallThroughDefault ) ); }
[4d51835]	1244	\| CONTINUE ';'
[de62360d]	1245	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	1246	{ $$ = new StatementNode( build_branch( BranchStmt::Continue ) ); }
[44a81853]	1247	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1248	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1249	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	1250	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Continue ) ); }
[4d51835]	1251	\| BREAK ';'
[de62360d]	1252	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[ab57786]	1253	{ $$ = new StatementNode( build_branch( BranchStmt::Break ) ); }
[44a81853]	1254	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1255	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1256	// the target of the transfer appears only at the start of an iteration statement.
[ab57786]	1257	{ $$ = new StatementNode( build_branch( $2, BranchStmt::Break ) ); }
[4d51835]	1258	\| RETURN comma_expression_opt ';'
[e82aa9df]	1259	{ $$ = new StatementNode( build_return( $2 ) ); }
[c786e1d]	1260	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5]	1261	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1262	\| SUSPEND ';'
[427854b]	1263	{ $$ = new StatementNode( build_suspend( nullptr ) ); }
[37cdd97]	1264	\| SUSPEND compound_statement ';'
[427854b]	1265	{ $$ = new StatementNode( build_suspend( $2 ) ); }
[37cdd97]	1266	\| SUSPEND COROUTINE ';'
[427854b]	1267	{ $$ = new StatementNode( build_suspend( nullptr, SuspendStmt::Coroutine ) ); }
[37cdd97]	1268	\| SUSPEND COROUTINE compound_statement
[427854b]	1269	{ $$ = new StatementNode( build_suspend( $3, SuspendStmt::Coroutine ) ); }
[37cdd97]	1270	\| SUSPEND GENERATOR ';'
[427854b]	1271	{ $$ = new StatementNode( build_suspend( nullptr, SuspendStmt::Generator ) ); }
[37cdd97]	1272	\| SUSPEND GENERATOR compound_statement
[427854b]	1273	{ $$ = new StatementNode( build_suspend( $3, SuspendStmt::Generator ) ); }
[8cc5cb0]	1274	\| THROW assignment_expression_opt ';' // handles rethrow
[e82aa9df]	1275	{ $$ = new StatementNode( build_throw( $2 ) ); }
[8cc5cb0]	1276	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[daf1af8]	1277	{ $$ = new StatementNode( build_resume( $2 ) ); }
[8cc5cb0]	1278	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1279	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1280	;
[51b7345]	1281
[6a276a0]	1282	fall_through_name: // CFA
	1283	FALLTHRU
	1284	\| FALLTHROUGH
	1285	;
	1286
[8b47e50]	1287	with_statement:
[5b2edbc]	1288	WITH '(' tuple_expression_list ')' statement
[a378ca7]	1289	{
	1290	$$ = new StatementNode( build_with( $3, $5 ) );
	1291	}
[5b2edbc]	1292	;
	1293
[b6b3c42]	1294	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so change syntax to "with mutex".
	1295	mutex_statement:
	1296	MUTEX '(' argument_expression_list ')' statement
[fae90d5]	1297	{ SemanticError( yylloc, "Mutex statement is currently unimplemented." ); $$ = nullptr; }
[b6b3c42]	1298	;
	1299
[51d6d6a]	1300	when_clause:
[6a276a0]	1301	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1302	;
	1303
[5b2edbc]	1304	when_clause_opt:
	1305	// empty
[135b431]	1306	{ $$ = nullptr; }
[51d6d6a]	1307	\| when_clause
[5b2edbc]	1308	;
	1309
	1310	waitfor:
[713926ca]	1311	WAITFOR '(' cast_expression ')'
	1312	{ $$ = $3; }
[4a063df]	1313	// \| WAITFOR '(' cast_expression ',' argument_expression_list ')'
	1314	// { $$ = (ExpressionNode *)$3->set_last( $5 ); }
	1315	\| WAITFOR '(' cast_expression_list ':' argument_expression_list ')'
	1316	{ $$ = (ExpressionNode *)($3->set_last( $5 )); }
	1317	;
	1318
	1319	cast_expression_list:
	1320	cast_expression
	1321	\| cast_expression_list ',' cast_expression
	1322	{ $$ = (ExpressionNode *)($1->set_last( $3 )); }
[5b2edbc]	1323	;
	1324
	1325	timeout:
[6a276a0]	1326	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1327	;
	1328
	1329	waitfor_clause:
[51d6d6a]	1330	when_clause_opt waitfor statement %prec THEN
[135b431]	1331	{ $$ = build_waitfor( $2, $3, $1 ); }
[5b2edbc]	1332	\| when_clause_opt waitfor statement WOR waitfor_clause
[135b431]	1333	{ $$ = build_waitfor( $2, $3, $1, $5 ); }
[51d6d6a]	1334	\| when_clause_opt timeout statement %prec THEN
[135b431]	1335	{ $$ = build_waitfor_timeout( $2, $3, $1 ); }
[5b2edbc]	1336	\| when_clause_opt ELSE statement
[135b431]	1337	{ $$ = build_waitfor_timeout( nullptr, $3, $1 ); }
[51d6d6a]	1338	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[713926ca]	1339	\| when_clause_opt timeout statement WOR ELSE statement
	1340	{ SemanticError( yylloc, "else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[51d6d6a]	1341	\| when_clause_opt timeout statement WOR when_clause ELSE statement
[135b431]	1342	{ $$ = build_waitfor_timeout( $2, $3, $1, $7, $5 ); }
[5b2edbc]	1343	;
	1344
	1345	waitfor_statement:
[51d6d6a]	1346	when_clause_opt waitfor statement %prec THEN
[135b431]	1347	{ $$ = new StatementNode( build_waitfor( $2, $3, $1 ) ); }
[5b2edbc]	1348	\| when_clause_opt waitfor statement WOR waitfor_clause
[135b431]	1349	{ $$ = new StatementNode( build_waitfor( $2, $3, $1, $5 ) ); }
[8b47e50]	1350	;
	1351
[51b7345]	1352	exception_statement:
[cfaabe2c]	1353	TRY compound_statement handler_clause
[e82aa9df]	1354	{ $$ = new StatementNode( build_try( $2, $3, 0 ) ); }
[4d51835]	1355	\| TRY compound_statement finally_clause
[e82aa9df]	1356	{ $$ = new StatementNode( build_try( $2, 0, $3 ) ); }
[cfaabe2c]	1357	\| TRY compound_statement handler_clause finally_clause
[e82aa9df]	1358	{ $$ = new StatementNode( build_try( $2, $3, $4 ) ); }
[4d51835]	1359	;
[51b7345]	1360
	1361	handler_clause:
[098f7ff]	1362	handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[3d26610]	1363	{ $$ = new StatementNode( build_catch( $1, $4, $6, $8 ) ); }
[098f7ff]	1364	\| handler_clause handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[3d26610]	1365	{ $$ = (StatementNode *)$1->set_last( new StatementNode( build_catch( $2, $5, $7, $9 ) ) ); }
[994d080]	1366	;
	1367
	1368	handler_predicate_opt:
[7fdb94e]	1369	// empty
[cbce272]	1370	{ $$ = nullptr; }
[6a276a0]	1371	\| ';' conditional_expression { $$ = $2; }
[307a732]	1372	;
	1373
	1374	handler_key:
[6a276a0]	1375	CATCH { $$ = CatchStmt::Terminate; }
	1376	\| CATCHRESUME { $$ = CatchStmt::Resume; }
[4d51835]	1377	;
[51b7345]	1378
	1379	finally_clause:
[6a276a0]	1380	FINALLY compound_statement { $$ = new StatementNode( build_finally( $2 ) ); }
[4d51835]	1381	;
[51b7345]	1382
	1383	exception_declaration:
[d0ffed1]	1384	// No SUE declaration in parameter list.
	1385	type_specifier_nobody
	1386	\| type_specifier_nobody declarator
[c0a33d2]	1387	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1388	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1389	{ $$ = $2->addType( $1 ); }
[033ff37]	1390	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1391	{ $$ = $1->addName( $2 ); }
[c0aa336]	1392	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1393	;
[51b7345]	1394
[2a8427c6]	1395	enable_disable_statement:
	1396	enable_disable_key identifier_list compound_statement
	1397	;
	1398
	1399	enable_disable_key:
	1400	ENABLE
	1401	\| DISABLE
	1402	;
	1403
[51b7345]	1404	asm_statement:
[ab57786]	1405	ASM asm_volatile_opt '(' string_literal ')' ';'
[6d539f83]	1406	{ $$ = new StatementNode( build_asm( $2, $4, 0 ) ); }
[ab57786]	1407	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[6d539f83]	1408	{ $$ = new StatementNode( build_asm( $2, $4, $6 ) ); }
[ab57786]	1409	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[6d539f83]	1410	{ $$ = new StatementNode( build_asm( $2, $4, $6, $8 ) ); }
[ab57786]	1411	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[6d539f83]	1412	{ $$ = new StatementNode( build_asm( $2, $4, $6, $8, $10 ) ); }
[ab57786]	1413	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[6d539f83]	1414	{ $$ = new StatementNode( build_asm( $2, $5, 0, $8, $10, $12 ) ); }
[7f5566b]	1415	;
	1416
	1417	asm_volatile_opt: // GCC
	1418	// empty
	1419	{ $$ = false; }
	1420	\| VOLATILE
	1421	{ $$ = true; }
[4d51835]	1422	;
[b87a5ed]	1423
	1424	asm_operands_opt: // GCC
[4d51835]	1425	// empty
[58dd019]	1426	{ $$ = nullptr; } // use default argument
[4d51835]	1427	\| asm_operands_list
	1428	;
[b87a5ed]	1429
	1430	asm_operands_list: // GCC
[4d51835]	1431	asm_operand
	1432	\| asm_operands_list ',' asm_operand
[4a063df]	1433	{ $$ = (ExpressionNode *)($1->set_last( $3 )); }
[4d51835]	1434	;
[b87a5ed]	1435
	1436	asm_operand: // GCC
[ab57786]	1437	string_literal '(' constant_expression ')'
[665f432]	1438	{ $$ = new ExpressionNode( new AsmExpr( nullptr, $1, maybeMoveBuild< Expression >( $3 ) ) ); }
	1439	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
	1440	{ $$ = new ExpressionNode( new AsmExpr( $2, $4, maybeMoveBuild< Expression >( $6 ) ) ); }
[7f5566b]	1441	;
	1442
[4e06c1e]	1443	asm_clobbers_list_opt: // GCC
[7f5566b]	1444	// empty
[58dd019]	1445	{ $$ = nullptr; } // use default argument
[ab57786]	1446	\| string_literal
[d1625f8]	1447	{ $$ = new ExpressionNode( $1 ); }
[ab57786]	1448	\| asm_clobbers_list_opt ',' string_literal
[4a063df]	1449	{ $$ = (ExpressionNode *)($1->set_last( new ExpressionNode( $3 ) )); }
[4d51835]	1450	;
[b87a5ed]	1451
[7f5566b]	1452	label_list:
[033ff37]	1453	identifier
[ab57786]	1454	{
	1455	$$ = new LabelNode(); $$->labels.push_back( *$1 );
	1456	delete $1; // allocated by lexer
	1457	}
[033ff37]	1458	\| label_list ',' identifier
[ab57786]	1459	{
	1460	$$ = $1; $1->labels.push_back( *$3 );
	1461	delete $3; // allocated by lexer
	1462	}
[4d51835]	1463	;
[51b7345]	1464
[c11e31c]	1465	//***************************** DECLARATIONS *******************************
[51b7345]	1466
[b87a5ed]	1467	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1468	// empty
[58dd019]	1469	{ $$ = nullptr; }
[4d51835]	1470	\| declaration_list
	1471	;
[51b7345]	1472
	1473	declaration_list:
[4d51835]	1474	declaration
[35718a9]	1475	\| declaration_list declaration
	1476	{ $$ = $1->appendList( $2 ); }
[4d51835]	1477	;
[51b7345]	1478
[407bde5]	1479	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1480	// empty
[58dd019]	1481	{ $$ = nullptr; }
[35718a9]	1482	\| KR_parameter_list
[4d51835]	1483	;
[51b7345]	1484
[35718a9]	1485	KR_parameter_list:
[4cc585b]	1486	push c_declaration pop ';'
	1487	{ $$ = $2; }
[35718a9]	1488	\| KR_parameter_list push c_declaration pop ';'
[4d51835]	1489	{ $$ = $1->appendList( $3 ); }
	1490	;
[b87a5ed]	1491
[51b1202]	1492	local_label_declaration_opt: // GCC, local label
[4d51835]	1493	// empty
[51b1202]	1494	\| local_label_declaration_list
[4d51835]	1495	;
[b87a5ed]	1496
[51b1202]	1497	local_label_declaration_list: // GCC, local label
	1498	LABEL local_label_list ';'
	1499	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1500	;
[b87a5ed]	1501
[51b1202]	1502	local_label_list: // GCC, local label
[033ff37]	1503	identifier_or_type_name
	1504	\| local_label_list ',' identifier_or_type_name
[4d51835]	1505	;
[b87a5ed]	1506
[936e9f4]	1507	declaration: // old & new style declarations
[35718a9]	1508	c_declaration ';'
	1509	\| cfa_declaration ';' // CFA
[b47b827]	1510	\| static_assert // C11
[4d51835]	1511	;
[b87a5ed]	1512
[b9be000b]	1513	static_assert:
	1514	STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11
[f6e3e34]	1515	{ $$ = DeclarationNode::newStaticAssert( $3, $5 ); }
[b47b827]	1516	\| STATICASSERT '(' constant_expression ')' ';' // CFA
[6e3eaa57]	1517	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( *new string( "\"\"" ) ) ); }
[b9be000b]	1518
[de62360d]	1519	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1520	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1521	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1522	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1523	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1524	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1525	//
[b87a5ed]	1526	// CFA C
	1527	// [10] int x; int x[10]; // array of 10 integers
	1528	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1529
[c0aa336]	1530	cfa_declaration: // CFA
[4cc585b]	1531	cfa_variable_declaration
	1532	\| cfa_typedef_declaration
	1533	\| cfa_function_declaration
	1534	\| type_declaring_list
	1535	\| trait_specifier
[4d51835]	1536	;
[b87a5ed]	1537
[c0aa336]	1538	cfa_variable_declaration: // CFA
	1539	cfa_variable_specifier initializer_opt
[7fdb94e]	1540	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	1541	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	1542	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	1543	// them as a type_qualifier cannot appear in that context.
[7fdb94e]	1544	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	1545	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[7fdb94e]	1546	{ $$ = $1->appendList( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	1547	;
[b87a5ed]	1548
[c0aa336]	1549	cfa_variable_specifier: // CFA
[de62360d]	1550	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1551	// storage-class
[c0aa336]	1552	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e]	1553	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	1554	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e]	1555	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	1556	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e]	1557	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[4d51835]	1558	;
[b87a5ed]	1559
[c0aa336]	1560	cfa_function_declaration: // CFA
	1561	cfa_function_specifier
	1562	\| type_qualifier_list cfa_function_specifier
[7fdb94e]	1563	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	1564	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e]	1565	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	1566	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e]	1567	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[40de461]	1568	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')'
[4d51835]	1569	{
[481115f]	1570	// Append the return type at the start (left-hand-side) to each identifier in the list.
	1571	DeclarationNode * ret = new DeclarationNode;
	1572	ret->type = maybeClone( $1->type->base );
[40de461]	1573	$$ = $1->appendList( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	1574	}
	1575	;
[b87a5ed]	1576
[c0aa336]	1577	cfa_function_specifier: // CFA
[40de461]	1578	// '[' ']' identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' // S/R conflict
[1b29996]	1579	// {
	1580	// $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( 0 ), $6, 0, true );
	1581	// }
[40de461]	1582	// '[' ']' identifier '(' push cfa_parameter_ellipsis_list_opt pop ')'
[2871210]	1583	// {
	1584	// typedefTable.setNextIdentifier( *$5 );
	1585	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1586	// }
[40de461]	1587	// \| '[' ']' TYPEDEFname '(' push cfa_parameter_ellipsis_list_opt pop ')'
[2871210]	1588	// {
	1589	// typedefTable.setNextIdentifier( *$5 );
	1590	// $$ = DeclarationNode::newFunction( $5, DeclarationNode::newTuple( 0 ), $8, 0, true );
	1591	// }
	1592	// \| '[' ']' typegen_name
	1593	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	1594	//
[40de461]	1595	// '[' ']' identifier_or_type_name '(' cfa_parameter_ellipsis_list_opt ')'
[4d51835]	1596	// '[' ']' type_specifier
	1597	//
[2871210]	1598	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	1599	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[c744563a]	1600	cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' attribute_list_opt
[c0aa336]	1601	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[c744563a]	1602	{ $$ = DeclarationNode::newFunction( $2, $1, $5, 0 )->addQualifiers( $8 ); }
	1603	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_ellipsis_list_opt pop ')' attribute_list_opt
	1604	{ $$ = DeclarationNode::newFunction( $2, $1, $5, 0 )->addQualifiers( $8 ); }
[4d51835]	1605	;
[b87a5ed]	1606
[c0aa336]	1607	cfa_function_return: // CFA
[c0a33d2]	1608	'[' push cfa_parameter_list pop ']'
	1609	{ $$ = DeclarationNode::newTuple( $3 ); }
	1610	\| '[' push cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ']'
[b048dc3]	1611	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[c0a33d2]	1612	{ $$ = DeclarationNode::newTuple( $3->appendList( $7 ) ); }
[4d51835]	1613	;
[b87a5ed]	1614
[c0aa336]	1615	cfa_typedef_declaration: // CFA
	1616	TYPEDEF cfa_variable_specifier
[4d51835]	1617	{
[ecae5860]	1618	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "1" );
[4d51835]	1619	$$ = $2->addTypedef();
	1620	}
[c0aa336]	1621	\| TYPEDEF cfa_function_specifier
[4d51835]	1622	{
[ecae5860]	1623	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "2" );
[4d51835]	1624	$$ = $2->addTypedef();
	1625	}
[033ff37]	1626	\| cfa_typedef_declaration pop ',' push identifier
[4d51835]	1627	{
[ecae5860]	1628	typedefTable.addToEnclosingScope( *$5, TYPEDEFname, "3" );
[4d51835]	1629	$$ = $1->appendList( $1->cloneType( $5 ) );
	1630	}
	1631	;
[b87a5ed]	1632
[de62360d]	1633	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	1634	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b7345]	1635
	1636	typedef_declaration:
[4d51835]	1637	TYPEDEF type_specifier declarator
	1638	{
[ecae5860]	1639	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "4" );
[4d51835]	1640	$$ = $3->addType( $2 )->addTypedef();
	1641	}
	1642	\| typedef_declaration pop ',' push declarator
	1643	{
[ecae5860]	1644	typedefTable.addToEnclosingScope( *$5->name, TYPEDEFname, "5" );
[4d51835]	1645	$$ = $1->appendList( $1->cloneBaseType( $5 )->addTypedef() );
	1646	}
[de62360d]	1647	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[4d51835]	1648	{
[ecae5860]	1649	typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname, "6" );
[4d51835]	1650	$$ = $4->addType( $3 )->addQualifiers( $1 )->addTypedef();
	1651	}
	1652	\| type_specifier TYPEDEF declarator
	1653	{
[ecae5860]	1654	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "7" );
[4d51835]	1655	$$ = $3->addType( $1 )->addTypedef();
	1656	}
	1657	\| type_specifier TYPEDEF type_qualifier_list declarator
	1658	{
[ecae5860]	1659	typedefTable.addToEnclosingScope( *$4->name, TYPEDEFname, "8" );
[de62360d]	1660	$$ = $4->addQualifiers( $1 )->addTypedef()->addType( $1 );
[4d51835]	1661	}
	1662	;
[b87a5ed]	1663
[721f17a]	1664	typedef_expression:
	1665	// GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	1666	TYPEDEF identifier '=' assignment_expression
[4d51835]	1667	{
[7fdb94e]	1668	// $$ = DeclarationNode::newName( 0 ); // unimplemented
	1669	SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr;
[4d51835]	1670	}
[033ff37]	1671	\| typedef_expression pop ',' push identifier '=' assignment_expression
[4d51835]	1672	{
[7fdb94e]	1673	// $$ = DeclarationNode::newName( 0 ); // unimplemented
	1674	SemanticError( yylloc, "Typedef expression is currently unimplemented." ); $$ = nullptr;
[4d51835]	1675	}
	1676	;
[51b7345]	1677
[c0aa336]	1678	//c_declaration:
	1679	// declaring_list pop ';'
	1680	// \| typedef_declaration pop ';'
	1681	// \| typedef_expression pop ';' // GCC, naming expression type
	1682	// \| sue_declaration_specifier pop ';'
	1683	// ;
	1684	//
	1685	//declaring_list:
	1686	// // A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1687	// // storage-class
	1688	// declarator asm_name_opt initializer_opt
	1689	// {
[2f0a0678]	1690	// typedefTable.addToEnclosingScope( IDENTIFIER );
[c0aa336]	1691	// $$ = ( $2->addType( $1 ))->addAsmName( $3 )->addInitializer( $4 );
	1692	// }
	1693	// \| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
	1694	// {
[2f0a0678]	1695	// typedefTable.addToEnclosingScope( IDENTIFIER );
[c0aa336]	1696	// $$ = $1->appendList( $1->cloneBaseType( $4->addAsmName( $5 )->addInitializer( $6 ) ) );
	1697	// }
	1698	// ;
	1699
	1700	c_declaration:
[4cc585b]	1701	declaration_specifier declaring_list
[7fdb94e]	1702	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	1703	\| typedef_declaration
	1704	\| typedef_expression // GCC, naming expression type
	1705	\| sue_declaration_specifier
[4d51835]	1706	;
[51b7345]	1707
	1708	declaring_list:
[de62360d]	1709	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	1710	// storage-class
[c0aa336]	1711	declarator asm_name_opt initializer_opt
[7fdb94e]	1712	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[4d51835]	1713	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[7fdb94e]	1714	{ $$ = $1->appendList( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	1715	;
[b87a5ed]	1716
	1717	declaration_specifier: // type specifier + storage class
[4d51835]	1718	basic_declaration_specifier
	1719	\| sue_declaration_specifier
[84d58c5]	1720	\| type_declaration_specifier
[4d51835]	1721	;
[b87a5ed]	1722
[d0ffed1]	1723	declaration_specifier_nobody: // type specifier + storage class - {...}
	1724	// Preclude SUE declarations in restricted scopes:
	1725	//
	1726	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	1727	//
	1728	// because it is impossible to call f due to name equivalence.
	1729	basic_declaration_specifier
	1730	\| sue_declaration_specifier_nobody
[84d58c5]	1731	\| type_declaration_specifier
[d0ffed1]	1732	;
	1733
	1734	type_specifier: // type specifier
[4d51835]	1735	basic_type_specifier
	1736	\| sue_type_specifier
[84d58c5]	1737	\| type_type_specifier
[4d51835]	1738	;
[b87a5ed]	1739
[d0ffed1]	1740	type_specifier_nobody: // type specifier - {...}
	1741	// Preclude SUE declarations in restricted scopes:
	1742	//
	1743	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	1744	//
	1745	// because it is impossible to call f due to name equivalence.
	1746	basic_type_specifier
	1747	\| sue_type_specifier_nobody
[84d58c5]	1748	\| type_type_specifier
[d0ffed1]	1749	;
	1750
[b87a5ed]	1751	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	1752	// empty
[58dd019]	1753	{ $$ = nullptr; }
[4d51835]	1754	\| type_qualifier_list
	1755	;
[51b7345]	1756
	1757	type_qualifier_list:
[de62360d]	1758	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	1759	//
[de62360d]	1760	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	1761	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	1762	// appeared only once.
[4d51835]	1763	type_qualifier
	1764	\| type_qualifier_list type_qualifier
	1765	{ $$ = $1->addQualifiers( $2 ); }
	1766	;
[51b7345]	1767
	1768	type_qualifier:
[4d51835]	1769	type_qualifier_name
	1770	\| attribute
	1771	;
[51b7345]	1772
	1773	type_qualifier_name:
[4d51835]	1774	CONST
[738e304]	1775	{ $$ = DeclarationNode::newTypeQualifier( Type::Const ); }
[4d51835]	1776	\| RESTRICT
[738e304]	1777	{ $$ = DeclarationNode::newTypeQualifier( Type::Restrict ); }
[4d51835]	1778	\| VOLATILE
[738e304]	1779	{ $$ = DeclarationNode::newTypeQualifier( Type::Volatile ); }
[4d51835]	1780	\| ATOMIC
[738e304]	1781	{ $$ = DeclarationNode::newTypeQualifier( Type::Atomic ); }
[a16a7ec]	1782	\| forall
	1783	;
	1784
	1785	forall:
[35718a9]	1786	FORALL '(' type_parameter_list ')' // CFA
	1787	{ $$ = DeclarationNode::newForall( $3 ); }
[4d51835]	1788	;
[51b7345]	1789
	1790	declaration_qualifier_list:
[4d51835]	1791	storage_class_list
[de62360d]	1792	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	1793	{ $$ = $1->addQualifiers( $2 ); }
	1794	\| declaration_qualifier_list type_qualifier_list storage_class_list
	1795	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1796	;
[51b7345]	1797
	1798	storage_class_list:
[de62360d]	1799	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	1800	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	1801	//
[de62360d]	1802	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	1803	// specifiers in a declaration.
[4d51835]	1804	storage_class
	1805	\| storage_class_list storage_class
	1806	{ $$ = $1->addQualifiers( $2 ); }
	1807	;
[51b7345]	1808
	1809	storage_class:
[4d51835]	1810	EXTERN
[68fe077a]	1811	{ $$ = DeclarationNode::newStorageClass( Type::Extern ); }
[4d51835]	1812	\| STATIC
[68fe077a]	1813	{ $$ = DeclarationNode::newStorageClass( Type::Static ); }
[4d51835]	1814	\| AUTO
[68fe077a]	1815	{ $$ = DeclarationNode::newStorageClass( Type::Auto ); }
[4d51835]	1816	\| REGISTER
[68fe077a]	1817	{ $$ = DeclarationNode::newStorageClass( Type::Register ); }
[dd020c0]	1818	\| THREADLOCAL // C11
[68fe077a]	1819	{ $$ = DeclarationNode::newStorageClass( Type::Threadlocal ); }
[dd020c0]	1820	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	1821	\| INLINE // C99
[ddfd945]	1822	{ $$ = DeclarationNode::newFuncSpecifier( Type::Inline ); }
[4d51835]	1823	\| FORTRAN // C99
[ddfd945]	1824	{ $$ = DeclarationNode::newFuncSpecifier( Type::Fortran ); }
[68cd1ce]	1825	\| NORETURN // C11
[ddfd945]	1826	{ $$ = DeclarationNode::newFuncSpecifier( Type::Noreturn ); }
[4d51835]	1827	;
[51b7345]	1828
	1829	basic_type_name:
[201aeb9]	1830	VOID
[4d51835]	1831	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	1832	\| BOOL // C99
	1833	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Bool ); }
[201aeb9]	1834	\| CHAR
	1835	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Char ); }
	1836	\| INT
	1837	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int ); }
	1838	\| INT128
	1839	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int128 ); }
[f1da02c]	1840	\| UINT128
	1841	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Int128 )->addType( DeclarationNode::newSignedNess( DeclarationNode::Unsigned ) ); }
[201aeb9]	1842	\| FLOAT
	1843	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Float ); }
	1844	\| DOUBLE
	1845	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Double ); }
[e15853c]	1846	\| uuFLOAT80
	1847	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uuFloat80 ); }
	1848	\| uuFLOAT128
	1849	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uuFloat128 ); }
	1850	\| uFLOAT16
	1851	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat16 ); }
	1852	\| uFLOAT32
	1853	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat32 ); }
	1854	\| uFLOAT32X
	1855	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat32x ); }
	1856	\| uFLOAT64
	1857	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat64 ); }
	1858	\| uFLOAT64X
	1859	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat64x ); }
	1860	\| uFLOAT128
	1861	{ $$ = DeclarationNode::newBasicType( DeclarationNode::uFloat128 ); }
[4d51835]	1862	\| COMPLEX // C99
[5b639ee]	1863	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Complex ); }
[4d51835]	1864	\| IMAGINARY // C99
[5b639ee]	1865	{ $$ = DeclarationNode::newComplexType( DeclarationNode::Imaginary ); }
[201aeb9]	1866	\| SIGNED
	1867	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Signed ); }
	1868	\| UNSIGNED
	1869	{ $$ = DeclarationNode::newSignedNess( DeclarationNode::Unsigned ); }
	1870	\| SHORT
	1871	{ $$ = DeclarationNode::newLength( DeclarationNode::Short ); }
	1872	\| LONG
	1873	{ $$ = DeclarationNode::newLength( DeclarationNode::Long ); }
[72457b6]	1874	\| VALIST // GCC, __builtin_va_list
	1875	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Valist ); }
[f673c13c]	1876	\| AUTO_TYPE
	1877	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::AutoType ); }
[4d51835]	1878	;
[51b7345]	1879
	1880	basic_declaration_specifier:
[4d51835]	1881	// A semantic check is necessary for conflicting storage classes.
	1882	basic_type_specifier
	1883	\| declaration_qualifier_list basic_type_specifier
	1884	{ $$ = $2->addQualifiers( $1 ); }
	1885	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1886	{ $$ = $1->addQualifiers( $2 ); }
	1887	\| basic_declaration_specifier storage_class type_qualifier_list
	1888	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1889	\| basic_declaration_specifier storage_class basic_type_specifier
	1890	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	1891	;
[51b7345]	1892
	1893	basic_type_specifier:
[84d58c5]	1894	direct_type
[f38e7d7]	1895	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	1896	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	1897	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	1898	;
[51b7345]	1899
[84d58c5]	1900	direct_type:
[4d51835]	1901	basic_type_name
	1902	\| type_qualifier_list basic_type_name
	1903	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	1904	\| direct_type type_qualifier
[4d51835]	1905	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	1906	\| direct_type basic_type_name
[4d51835]	1907	{ $$ = $1->addType( $2 ); }
	1908	;
[51b7345]	1909
[84d58c5]	1910	indirect_type:
[b6ad601]	1911	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	1912	{ $$ = $3; }
[b6ad601]	1913	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	1914	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	1915	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
	1916	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ), true ); }
	1917	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	1918	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	1919	\| ZERO_T // CFA
	1920	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::Zero ); }
	1921	\| ONE_T // CFA
	1922	{ $$ = DeclarationNode::newBuiltinType( DeclarationNode::One ); }
[4d51835]	1923	;
[51b7345]	1924
[d0ffed1]	1925	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	1926	sue_type_specifier
	1927	\| declaration_qualifier_list sue_type_specifier
	1928	{ $$ = $2->addQualifiers( $1 ); }
	1929	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	1930	{ $$ = $1->addQualifiers( $2 ); }
	1931	\| sue_declaration_specifier storage_class type_qualifier_list
	1932	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1933	;
[51b7345]	1934
[d0ffed1]	1935	sue_type_specifier: // struct, union, enum + type specifier
	1936	elaborated_type
[fdca7c6]	1937	\| type_qualifier_list
	1938	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	1939	elaborated_type
	1940	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	1941	\| sue_type_specifier type_qualifier
[284da8c]	1942	{
	1943	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	1944	$$ = $1->addQualifiers( $2 );
	1945	}
[4d51835]	1946	;
[51b7345]	1947
[d0ffed1]	1948	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	1949	sue_type_specifier_nobody
	1950	\| declaration_qualifier_list sue_type_specifier_nobody
	1951	{ $$ = $2->addQualifiers( $1 ); }
	1952	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	1953	{ $$ = $1->addQualifiers( $2 ); }
	1954	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	1955	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1956	;
	1957
	1958	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	1959	elaborated_type_nobody
	1960	\| type_qualifier_list elaborated_type_nobody
	1961	{ $$ = $2->addQualifiers( $1 ); }
	1962	\| sue_type_specifier_nobody type_qualifier
	1963	{ $$ = $1->addQualifiers( $2 ); }
	1964	;
	1965
[84d58c5]	1966	type_declaration_specifier:
	1967	type_type_specifier
	1968	\| declaration_qualifier_list type_type_specifier
[4d51835]	1969	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	1970	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	1971	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	1972	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	1973	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	1974	;
[b87a5ed]	1975
[84d58c5]	1976	type_type_specifier: // typedef types
	1977	type_name
	1978	\| type_qualifier_list type_name
	1979	{ $$ = $2->addQualifiers( $1 ); }
	1980	\| type_type_specifier type_qualifier
	1981	{ $$ = $1->addQualifiers( $2 ); }
	1982	;
	1983
	1984	type_name:
[4d51835]	1985	TYPEDEFname
	1986	{ $$ = DeclarationNode::newFromTypedef( $1 ); }
[84d58c5]	1987	\| '.' TYPEDEFname
[47498bd]	1988	{ $$ = DeclarationNode::newQualifiedType( DeclarationNode::newFromGlobalScope(), DeclarationNode::newFromTypedef( $2 ) ); }
[84d58c5]	1989	\| type_name '.' TYPEDEFname
[c5d7701]	1990	{ $$ = DeclarationNode::newQualifiedType( $1, DeclarationNode::newFromTypedef( $3 ) ); }
[84d58c5]	1991	\| typegen_name
	1992	\| '.' typegen_name
[47498bd]	1993	{ $$ = DeclarationNode::newQualifiedType( DeclarationNode::newFromGlobalScope(), $2 ); }
[84d58c5]	1994	\| type_name '.' typegen_name
[c5d7701]	1995	{ $$ = DeclarationNode::newQualifiedType( $1, $3 ); }
[84d58c5]	1996	;
	1997
	1998	typegen_name: // CFA
[65d6de4]	1999	TYPEGENname
	2000	{ $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); }
	2001	\| TYPEGENname '(' ')'
[67cf18c]	2002	{ $$ = DeclarationNode::newFromTypeGen( $1, nullptr ); }
	2003	\| TYPEGENname '(' type_list ')'
[84d58c5]	2004	{ $$ = DeclarationNode::newFromTypeGen( $1, $3 ); }
[4d51835]	2005	;
[51b7345]	2006
[d0ffed1]	2007	elaborated_type: // struct, union, enum
[c0aa336]	2008	aggregate_type
	2009	\| enum_type
[4d51835]	2010	;
[51b7345]	2011
[d0ffed1]	2012	elaborated_type_nobody: // struct, union, enum - {...}
	2013	aggregate_type_nobody
	2014	\| enum_type_nobody
	2015	;
	2016
[3d56d15b]	2017	fred:
	2018	// empty
	2019	{ yyy = false; }
	2020	;
	2021
[d0ffed1]	2022	aggregate_type: // struct, union
[fc20514]	2023	aggregate_key attribute_list_opt
	2024	{ forall = false; } // reset
	2025	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2026	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[033ff37]	2027	\| aggregate_key attribute_list_opt identifier fred
[fdca7c6]	2028	{
[26ef3b2]	2029	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname ); // create typedef
[fdca7c6]	2030	forall = false; // reset
	2031	}
[284da8c]	2032	'{' field_declaration_list_opt '}' type_parameters_opt
	2033	{ $$ = DeclarationNode::newAggregate( $1, $3, $9, $7, true )->addQualifiers( $2 ); }
[3d56d15b]	2034	\| aggregate_key attribute_list_opt type_name fred
[407bde5]	2035	{
[7de22b28]	2036	// for type_name can be a qualified type name S.T, in which case only the last name in the chain needs a typedef (other names in the chain should already have one)
[26ef3b2]	2037	typedefTable.makeTypedef( *$3->type->leafName(), forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname ); // create typedef
[407bde5]	2038	forall = false; // reset
	2039	}
[284da8c]	2040	'{' field_declaration_list_opt '}' type_parameters_opt
	2041	{ $$ = DeclarationNode::newAggregate( $1, $3->type->symbolic.name, $9, $7, true )->addQualifiers( $2 ); }
[d0ffed1]	2042	\| aggregate_type_nobody
	2043	;
	2044
[284da8c]	2045	type_parameters_opt:
	2046	// empty
	2047	{ $$ = nullptr; } %prec '}'
	2048	\| '(' type_list ')'
	2049	{ $$ = $2; }
	2050	;
	2051
[d0ffed1]	2052	aggregate_type_nobody: // struct, union - {...}
[033ff37]	2053	aggregate_key attribute_list_opt identifier fred
[84d58c5]	2054	{
[26ef3b2]	2055	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname );
[9997fee]	2056	forall = false; // reset
[84d58c5]	2057	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2058	}
[3d56d15b]	2059	\| aggregate_key attribute_list_opt type_name fred
[65d6de4]	2060	{
[fc20514]	2061	forall = false; // reset
[65d6de4]	2062	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2063	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
	2064	// delete newFromTypeGen.
	2065	$$ = DeclarationNode::newAggregate( $1, $3->type->symbolic.name, $3->type->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2066	$3->type->symbolic.name = nullptr;
	2067	$3->type->symbolic.actuals = nullptr;
	2068	delete $3;
	2069	}
[4d51835]	2070	;
[51b7345]	2071
	2072	aggregate_key:
[e307e12]	2073	aggregate_data
	2074	\| aggregate_control
	2075	;
	2076
	2077	aggregate_data:
[c0aa336]	2078	STRUCT
[312029a]	2079	{ yyy = true; $$ = AggregateDecl::Struct; }
[c0aa336]	2080	\| UNION
[312029a]	2081	{ yyy = true; $$ = AggregateDecl::Union; }
[e307e12]	2082	\| EXCEPTION // CFA
[312029a]	2083	{ yyy = true; $$ = AggregateDecl::Exception; }
[e307e12]	2084	;
	2085
	2086	aggregate_control: // CFA
	2087	GENERATOR
[427854b]	2088	{ yyy = true; $$ = AggregateDecl::Generator; }
[aeb5d0d]	2089	\| MONITOR GENERATOR
	2090	{ SemanticError( yylloc, "monitor generator is currently unimplemented." ); $$ = AggregateDecl::NoAggregate; }
[d3bc0ad]	2091	\| COROUTINE
[312029a]	2092	{ yyy = true; $$ = AggregateDecl::Coroutine; }
[d3bc0ad]	2093	\| MONITOR
[312029a]	2094	{ yyy = true; $$ = AggregateDecl::Monitor; }
[aeb5d0d]	2095	\| MONITOR COROUTINE
	2096	{ SemanticError( yylloc, "monitor coroutine is currently unimplemented." ); $$ = AggregateDecl::NoAggregate; }
[d3bc0ad]	2097	\| THREAD
[312029a]	2098	{ yyy = true; $$ = AggregateDecl::Thread; }
[aeb5d0d]	2099	\| MONITOR THREAD
	2100	{ SemanticError( yylloc, "monitor thread is currently unimplemented." ); $$ = AggregateDecl::NoAggregate; }
[4d51835]	2101	;
[51b7345]	2102
[7fdb94e]	2103	field_declaration_list_opt:
[5d125e4]	2104	// empty
[58dd019]	2105	{ $$ = nullptr; }
[7fdb94e]	2106	\| field_declaration_list_opt field_declaration
[a7741435]	2107	{ $$ = $1 ? $1->appendList( $2 ) : $2; }
[4d51835]	2108	;
[51b7345]	2109
	2110	field_declaration:
[679e644]	2111	type_specifier field_declaring_list_opt ';'
[f7e4db27]	2112	{ $$ = fieldDecl( $1, $2 ); }
[679e644]	2113	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2114	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[e07caa2]	2115	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2116	{
[dea36ee]	2117	if ( ! $3 ) { // field declarator ?
	2118	$3 = DeclarationNode::newName( nullptr );
	2119	} // if
[679a260]	2120	$3->inLine = true;
[679e644]	2121	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2122	distInl( $3 );
[8f91c9ae]	2123	}
[e307e12]	2124	\| INLINE aggregate_control ';' // CFA
	2125	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2126	\| typedef_declaration ';' // CFA
	2127	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2128	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2129	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2130	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2131	{ $$ = $2; } // mark all fields in list
[46fa473]	2132	\| cfa_typedef_declaration ';' // CFA
[b47b827]	2133	\| static_assert // C11
[4d51835]	2134	;
[b87a5ed]	2135
[679e644]	2136	field_declaring_list_opt:
	2137	// empty
	2138	{ $$ = nullptr; }
	2139	\| field_declarator
	2140	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[c0aa336]	2141	{ $$ = $1->appendList( $4->addQualifiers( $3 ) ); }
[4d51835]	2142	;
[51b7345]	2143
[679e644]	2144	field_declarator:
[e07caa2]	2145	bit_subrange_size // C special case, no field name
[4d51835]	2146	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2147	\| variable_declarator bit_subrange_size_opt
[679e644]	2148	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2149	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2150	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2151	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2152	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2153	;
	2154
[e07caa2]	2155	field_abstract_list_opt:
	2156	// empty
[dea36ee]	2157	{ $$ = nullptr; }
[e07caa2]	2158	\| field_abstract
	2159	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[679e644]	2160	{ $$ = $1->appendList( $4->addQualifiers( $3 ) ); }
	2161	;
	2162
[e07caa2]	2163	field_abstract:
[f7e4db27]	2164	// no bit fields
[e07caa2]	2165	variable_abstract_declarator
[679e644]	2166	;
	2167
	2168	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2169	// bit-fields are handled by C declarations
[033ff37]	2170	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2171	{ $$ = $1->addName( $2 ); }
[033ff37]	2172	\| cfa_field_declaring_list ',' identifier_or_type_name
[679e644]	2173	{ $$ = $1->appendList( $1->cloneType( $3 ) ); }
	2174	;
	2175
	2176	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2177	// bit-fields are handled by C declarations
[679e644]	2178	cfa_abstract_declarator_tuple
	2179	\| cfa_field_abstract_list ','
	2180	{ $$ = $1->appendList( $1->cloneType( 0 ) ); }
[4d51835]	2181	;
[51b7345]	2182
	2183	bit_subrange_size_opt:
[4d51835]	2184	// empty
[58dd019]	2185	{ $$ = nullptr; }
[4d51835]	2186	\| bit_subrange_size
	2187	;
[51b7345]	2188
	2189	bit_subrange_size:
[c786e1d]	2190	':' assignment_expression
[4d51835]	2191	{ $$ = $2; }
	2192	;
[51b7345]	2193
[d0ffed1]	2194	enum_type: // enum
[c0aa336]	2195	ENUM attribute_list_opt '{' enumerator_list comma_opt '}'
[3d7e53b]	2196	{ $$ = DeclarationNode::newEnum( nullptr, $4, true )->addQualifiers( $2 ); }
[033ff37]	2197	\| ENUM attribute_list_opt identifier
[d0ffed1]	2198	{ typedefTable.makeTypedef( *$3 ); }
	2199	'{' enumerator_list comma_opt '}'
	2200	{ $$ = DeclarationNode::newEnum( $3, $6, true )->addQualifiers( $2 ); }
[407bde5]	2201	\| ENUM attribute_list_opt type_name
	2202	'{' enumerator_list comma_opt '}'
	2203	{ $$ = DeclarationNode::newEnum( $3->type->symbolic.name, $5, true )->addQualifiers( $2 ); }
[d0ffed1]	2204	\| enum_type_nobody
	2205	;
	2206
	2207	enum_type_nobody: // enum - {...}
[033ff37]	2208	ENUM attribute_list_opt identifier
[45161b4d]	2209	{
[c0aa336]	2210	typedefTable.makeTypedef( *$3 );
[ca1a547]	2211	$$ = DeclarationNode::newEnum( $3, 0, false )->addQualifiers( $2 );
[45161b4d]	2212	}
[407bde5]	2213	\| ENUM attribute_list_opt type_name
	2214	{
	2215	typedefTable.makeTypedef( *$3->type->symbolic.name );
	2216	$$ = DeclarationNode::newEnum( $3->type->symbolic.name, 0, false )->addQualifiers( $2 );
	2217	}
[4d51835]	2218	;
[51b7345]	2219
	2220	enumerator_list:
[033ff37]	2221	identifier_or_type_name enumerator_value_opt
[4d51835]	2222	{ $$ = DeclarationNode::newEnumConstant( $1, $2 ); }
[033ff37]	2223	\| enumerator_list ',' identifier_or_type_name enumerator_value_opt
[4d51835]	2224	{ $$ = $1->appendList( DeclarationNode::newEnumConstant( $3, $4 ) ); }
	2225	;
[51b7345]	2226
	2227	enumerator_value_opt:
[4d51835]	2228	// empty
[58dd019]	2229	{ $$ = nullptr; }
[4d51835]	2230	\| '=' constant_expression
	2231	{ $$ = $2; }
	2232	;
[51b7345]	2233
[40de461]	2234	cfa_parameter_ellipsis_list_opt: // CFA, abstract + real
[4d51835]	2235	// empty
[2a8427c6]	2236	{ $$ = DeclarationNode::newBasicType( DeclarationNode::Void ); }
	2237	\| ELLIPSIS
[58dd019]	2238	{ $$ = nullptr; }
[2a8427c6]	2239	\| cfa_abstract_parameter_list
[c0aa336]	2240	\| cfa_parameter_list
[c0a33d2]	2241	\| cfa_parameter_list pop ',' push cfa_abstract_parameter_list
	2242	{ $$ = $1->appendList( $5 ); }
	2243	\| cfa_abstract_parameter_list pop ',' push ELLIPSIS
[4d51835]	2244	{ $$ = $1->addVarArgs(); }
[c0a33d2]	2245	\| cfa_parameter_list pop ',' push ELLIPSIS
[4d51835]	2246	{ $$ = $1->addVarArgs(); }
	2247	;
[b87a5ed]	2248
[c0aa336]	2249	cfa_parameter_list: // CFA
	2250	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2251	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2252	cfa_parameter_declaration
[c0a33d2]	2253	\| cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration
	2254	{ $$ = $1->appendList( $5 ); }
	2255	\| cfa_parameter_list pop ',' push cfa_parameter_declaration
	2256	{ $$ = $1->appendList( $5 ); }
	2257	\| cfa_parameter_list pop ',' push cfa_abstract_parameter_list pop ',' push cfa_parameter_declaration
	2258	{ $$ = $1->appendList( $5 )->appendList( $9 ); }
[4d51835]	2259	;
[b87a5ed]	2260
[c0aa336]	2261	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2262	cfa_abstract_parameter_declaration
[c0a33d2]	2263	\| cfa_abstract_parameter_list pop ',' push cfa_abstract_parameter_declaration
	2264	{ $$ = $1->appendList( $5 ); }
[4d51835]	2265	;
[51b7345]	2266
	2267	parameter_type_list_opt:
[4d51835]	2268	// empty
[58dd019]	2269	{ $$ = nullptr; }
[2a8427c6]	2270	\| ELLIPSIS
	2271	{ $$ = nullptr; }
	2272	\| parameter_list
[4d51835]	2273	\| parameter_list pop ',' push ELLIPSIS
	2274	{ $$ = $1->addVarArgs(); }
	2275	;
[b87a5ed]	2276
	2277	parameter_list: // abstract + real
[4d51835]	2278	abstract_parameter_declaration
	2279	\| parameter_declaration
	2280	\| parameter_list pop ',' push abstract_parameter_declaration
	2281	{ $$ = $1->appendList( $5 ); }
	2282	\| parameter_list pop ',' push parameter_declaration
	2283	{ $$ = $1->appendList( $5 ); }
	2284	;
[51b7345]	2285
[de62360d]	2286	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2287	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b7345]	2288
[c0aa336]	2289	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2290	parameter_declaration
[994d080]	2291	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initialize_opt
[4d51835]	2292	{ $$ = $1->addName( $2 ); }
[994d080]	2293	\| cfa_abstract_tuple identifier_or_type_name default_initialize_opt
[c0aa336]	2294	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2295	{ $$ = $1->addName( $2 ); }
[994d080]	2296	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initialize_opt
[4d51835]	2297	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[c0aa336]	2298	\| cfa_function_specifier
[4d51835]	2299	;
[b87a5ed]	2300
[c0aa336]	2301	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2302	abstract_parameter_declaration
[c0aa336]	2303	\| cfa_identifier_parameter_declarator_no_tuple
	2304	\| cfa_abstract_tuple
	2305	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2306	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2307	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2308	\| cfa_abstract_function
[4d51835]	2309	;
[51b7345]	2310
	2311	parameter_declaration:
[d0ffed1]	2312	// No SUE declaration in parameter list.
[994d080]	2313	declaration_specifier_nobody identifier_parameter_declarator default_initialize_opt
[7fdb94e]	2314	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[994d080]	2315	\| declaration_specifier_nobody type_parameter_redeclarator default_initialize_opt
[7fdb94e]	2316	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[4d51835]	2317	;
[51b7345]	2318
	2319	abstract_parameter_declaration:
[994d080]	2320	declaration_specifier_nobody default_initialize_opt
[e7cc8cb]	2321	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
[994d080]	2322	\| declaration_specifier_nobody abstract_parameter_declarator default_initialize_opt
[e7cc8cb]	2323	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
[4d51835]	2324	;
[51b7345]	2325
[c11e31c]	2326	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2327	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2328	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b7345]	2329
[b87a5ed]	2330	identifier_list: // K&R-style parameter list => no types
[033ff37]	2331	identifier
[4d51835]	2332	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2333	\| identifier_list ',' identifier
[4d51835]	2334	{ $$ = $1->appendList( DeclarationNode::newName( $3 ) ); }
	2335	;
[51b7345]	2336
[2871210]	2337	identifier_or_type_name:
[4d51835]	2338	identifier
	2339	\| TYPEDEFname
	2340	\| TYPEGENname
	2341	;
[51b7345]	2342
[84d58c5]	2343	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2344	cfa_abstract_declarator_tuple // CFA
[4d51835]	2345	\| type_specifier
[c0aa336]	2346	\| type_specifier abstract_declarator
[4d51835]	2347	{ $$ = $2->addType( $1 ); }
	2348	;
[b87a5ed]	2349
[84d58c5]	2350	type: // typeof, assertion
	2351	type_no_function
[c0aa336]	2352	\| cfa_abstract_function // CFA
[4d51835]	2353	;
[51b7345]	2354
	2355	initializer_opt:
[4d51835]	2356	// empty
[58dd019]	2357	{ $$ = nullptr; }
[2871210]	2358	\| '=' initializer
	2359	{ $$ = $2; }
[641c3d0]	2360	\| '=' VOID
[3ed994e]	2361	{ $$ = new InitializerNode( true ); }
[097e2b0]	2362	\| ATassign initializer
[974906e2]	2363	{ $$ = $2->set_maybeConstructed( false ); }
[4d51835]	2364	;
[51b7345]	2365
	2366	initializer:
[de62360d]	2367	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e]	2368	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2369	;
[51b7345]	2370
[7fdb94e]	2371	initializer_list_opt:
[097e2b0]	2372	// empty
[58dd019]	2373	{ $$ = nullptr; }
[097e2b0]	2374	\| initializer
[4d51835]	2375	\| designation initializer { $$ = $2->set_designators( $1 ); }
[7fdb94e]	2376	\| initializer_list_opt ',' initializer { $$ = (InitializerNode *)( $1->set_last( $3 ) ); }
	2377	\| initializer_list_opt ',' designation initializer
[4a063df]	2378	{ $$ = (InitializerNode *)($1->set_last( $4->set_designators( $3 ) )); }
[4d51835]	2379	;
[b87a5ed]	2380
[de62360d]	2381	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	2382	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	2383	//
[b87a5ed]	2384	// int x[10] = { [1] = 3 };
[c11e31c]	2385	//
[de62360d]	2386	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	2387	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	2388	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	2389	// shift/reduce conflicts
[51b7345]	2390
	2391	designation:
[4d51835]	2392	designator_list ':' // C99, CFA uses ":" instead of "="
[033ff37]	2393	\| identifier ':' // GCC, field name
[d1625f8]	2394	{ $$ = new ExpressionNode( build_varref( $1 ) ); }
[4d51835]	2395	;
[51b7345]	2396
[b87a5ed]	2397	designator_list: // C99
[4d51835]	2398	designator
[2871210]	2399	\| designator_list designator
[4a063df]	2400	{ $$ = (ExpressionNode *)($1->set_last( $2 )); }
[d1625f8]	2401	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	2402	;
[51b7345]	2403
	2404	designator:
[033ff37]	2405	'.' identifier // C99, field name
[d1625f8]	2406	{ $$ = new ExpressionNode( build_varref( $2 ) ); }
[c0a33d2]	2407	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	2408	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	2409	{ $$ = $3; }
[c0a33d2]	2410	\| '[' push subrange pop ']' // CFA, multiple array elements
	2411	{ $$ = $3; }
	2412	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
	2413	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $3 ), maybeMoveBuild< Expression >( $5 ) ) ); }
[679e644]	2414	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	2415	{ $$ = $4; }
[4d51835]	2416	;
[51b7345]	2417
[de62360d]	2418	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	2419	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	2420	//
	2421	// Overloading: function, data, and operator identifiers may be overloaded.
	2422	//
[de62360d]	2423	// Type declarations: "type" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
	2424	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	2425	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	2426	//
[de62360d]	2427	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	2428	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	2429	//
	2430	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	2431	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	2432	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	2433	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	2434	// on type arguments of polymorphic functions.
[c11e31c]	2435
[b87a5ed]	2436	type_parameter_list: // CFA
[67cf18c]	2437	type_parameter
	2438	\| type_parameter_list ',' type_parameter
[4d51835]	2439	{ $$ = $1->appendList( $3 ); }
	2440	;
[b87a5ed]	2441
[84d58c5]	2442	type_initializer_opt: // CFA
	2443	// empty
	2444	{ $$ = nullptr; }
	2445	\| '=' type
	2446	{ $$ = $2; }
	2447	;
	2448
[b87a5ed]	2449	type_parameter: // CFA
[033ff37]	2450	type_class identifier_or_type_name
[ecae5860]	2451	{ typedefTable.addToScope( *$2, TYPEDEFname, "9" ); }
[67cf18c]	2452	type_initializer_opt assertion_list_opt
	2453	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[4d51835]	2454	\| type_specifier identifier_parameter_declarator
[9997fee]	2455	\| assertion_list
[07de76b]	2456	{ $$ = DeclarationNode::newTypeParam( TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[4d51835]	2457	;
[b87a5ed]	2458
	2459	type_class: // CFA
[4040425]	2460	OTYPE
[07de76b]	2461	{ $$ = TypeDecl::Otype; }
[4d51835]	2462	\| DTYPE
[07de76b]	2463	{ $$ = TypeDecl::Dtype; }
[8f60f0b]	2464	\| FTYPE
[07de76b]	2465	{ $$ = TypeDecl::Ftype; }
[8f60f0b]	2466	\| TTYPE
[07de76b]	2467	{ $$ = TypeDecl::Ttype; }
[4d51835]	2468	;
[b87a5ed]	2469
	2470	assertion_list_opt: // CFA
[4d51835]	2471	// empty
[58dd019]	2472	{ $$ = nullptr; }
[9997fee]	2473	\| assertion_list
	2474	;
	2475
	2476	assertion_list: // CFA
	2477	assertion
	2478	\| assertion_list assertion
[a7741435]	2479	{ $$ = $1 ? $1->appendList( $2 ) : $2; }
[4d51835]	2480	;
[b87a5ed]	2481
	2482	assertion: // CFA
[033ff37]	2483	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e]	2484	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[13e8427]	2485	\| '\|' '{' push trait_declaration_list pop '}'
[4d51835]	2486	{ $$ = $4; }
[35718a9]	2487	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	2488	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2489	;
[b87a5ed]	2490
[84d58c5]	2491	type_list: // CFA
	2492	type
[513e165]	2493	{ $$ = new ExpressionNode( new TypeExpr( maybeMoveBuildType( $1 ) ) ); }
[4d51835]	2494	\| assignment_expression
[3007c0b]	2495	{ SemanticError( yylloc, toString("Expression generic parameters are currently unimplemented: ", $1->build()) ); $$ = nullptr; }
[84d58c5]	2496	\| type_list ',' type
[4a063df]	2497	{ $$ = (ExpressionNode *)($1->set_last( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ) )); }
[84d58c5]	2498	\| type_list ',' assignment_expression
[3007c0b]	2499	{ SemanticError( yylloc, toString("Expression generic parameters are currently unimplemented: ", $3->build()) ); $$ = nullptr; }
	2500	// { $$ = (ExpressionNode *)( $1->set_last( $3 )); }
[4d51835]	2501	;
[b87a5ed]	2502
	2503	type_declaring_list: // CFA
[4040425]	2504	OTYPE type_declarator
[4d51835]	2505	{ $$ = $2; }
[4040425]	2506	\| storage_class_list OTYPE type_declarator
[4d51835]	2507	{ $$ = $3->addQualifiers( $1 ); }
	2508	\| type_declaring_list ',' type_declarator
[a7c90d4]	2509	{ $$ = $1->appendList( $3->copySpecifiers( $1 ) ); }
[4d51835]	2510	;
[b87a5ed]	2511
	2512	type_declarator: // CFA
[4d51835]	2513	type_declarator_name assertion_list_opt
	2514	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	2515	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	2516	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	2517	;
[b87a5ed]	2518
	2519	type_declarator_name: // CFA
[033ff37]	2520	identifier_or_type_name
[4d51835]	2521	{
[ecae5860]	2522	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "10" );
[4d51835]	2523	$$ = DeclarationNode::newTypeDecl( $1, 0 );
	2524	}
[033ff37]	2525	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	2526	{
[ecae5860]	2527	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "11" );
[35718a9]	2528	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	2529	}
	2530	;
[b87a5ed]	2531
[4040425]	2532	trait_specifier: // CFA
[033ff37]	2533	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[35718a9]	2534	{ $$ = DeclarationNode::newTrait( $2, $4, 0 ); }
[033ff37]	2535	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' push trait_declaration_list pop '}'
[35718a9]	2536	{ $$ = DeclarationNode::newTrait( $2, $4, $8 ); }
[4d51835]	2537	;
[b87a5ed]	2538
[84d58c5]	2539	trait_declaration_list: // CFA
[4040425]	2540	trait_declaration
[13e8427]	2541	\| trait_declaration_list pop push trait_declaration
	2542	{ $$ = $1->appendList( $4 ); }
[4d51835]	2543	;
[b87a5ed]	2544
[84d58c5]	2545	trait_declaration: // CFA
[13e8427]	2546	cfa_trait_declaring_list ';'
	2547	\| trait_declaring_list ';'
[4d51835]	2548	;
[b87a5ed]	2549
[c0aa336]	2550	cfa_trait_declaring_list: // CFA
	2551	cfa_variable_specifier
	2552	\| cfa_function_specifier
	2553	\| cfa_trait_declaring_list pop ',' push identifier_or_type_name
[7fdb94e]	2554	{ $$ = $1->appendList( $1->cloneType( $5 ) ); }
[4d51835]	2555	;
[b87a5ed]	2556
[4040425]	2557	trait_declaring_list: // CFA
[4d51835]	2558	type_specifier declarator
[7fdb94e]	2559	{ $$ = $2->addType( $1 ); }
[4040425]	2560	\| trait_declaring_list pop ',' push declarator
[7fdb94e]	2561	{ $$ = $1->appendList( $1->cloneBaseType( $5 ) ); }
[4d51835]	2562	;
[51b7345]	2563
[c11e31c]	2564	//*************************** EXTERNAL DEFINITIONS ***************************
[51b7345]	2565
	2566	translation_unit:
[3d56d15b]	2567	// empty, input file
[4d51835]	2568	\| external_definition_list
[a7741435]	2569	{ parseTree = parseTree ? parseTree->appendList( $1 ) : $1; }
[4d51835]	2570	;
[51b7345]	2571
	2572	external_definition_list:
[35718a9]	2573	push external_definition pop
	2574	{ $$ = $2; }
[fc20514]	2575	\| external_definition_list push external_definition pop
	2576	{ $$ = $1 ? $1->appendList( $3 ) : $3; }
[4d51835]	2577	;
[51b7345]	2578
	2579	external_definition_list_opt:
[4d51835]	2580	// empty
[58dd019]	2581	{ $$ = nullptr; }
[3d56d15b]	2582	\| external_definition_list
	2583	;
	2584
	2585	up:
[fc20514]	2586	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	2587	;
	2588
	2589	down:
	2590	{ typedefTable.down(); }
[4d51835]	2591	;
[51b7345]	2592
	2593	external_definition:
[4d51835]	2594	declaration
	2595	\| external_function_definition
[ecae5860]	2596	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	2597	{
	2598	distExt( $2 ); // mark all fields in list
	2599	$$ = $2;
	2600	}
[e994912]	2601	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
	2602	{
[6d539f83]	2603	$$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( false, $3, 0 ) ) );
[e994912]	2604	}
[c0aa336]	2605	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	2606	{
[3b8e52c]	2607	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[d912bed]	2608	linkage = LinkageSpec::update( yylloc, linkage, $2 );
[4d51835]	2609	}
[3d56d15b]	2610	'{' up external_definition_list_opt down '}'
[4d51835]	2611	{
	2612	linkage = linkageStack.top();
	2613	linkageStack.pop();
[3d56d15b]	2614	$$ = $6;
[8e9cbb2]	2615	}
[9997fee]	2616	\| type_qualifier_list
	2617	{
[3d56d15b]	2618	if ( $1->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); }
[fc20514]	2619	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	2620	}
	2621	'{' up external_definition_list_opt down '}' // CFA, namespace
	2622	{
[4c3ee8d]	2623	distQual( $5, $1 );
[fc20514]	2624	forall = false;
[3d56d15b]	2625	$$ = $5;
[9997fee]	2626	}
	2627	\| declaration_qualifier_list
	2628	{
[4c3ee8d]	2629	if ( $1->type && $1->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); }
[fc20514]	2630	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	2631	}
	2632	'{' up external_definition_list_opt down '}' // CFA, namespace
	2633	{
[4c3ee8d]	2634	distQual( $5, $1 );
[fc20514]	2635	forall = false;
[3d56d15b]	2636	$$ = $5;
[9997fee]	2637	}
	2638	\| declaration_qualifier_list type_qualifier_list
	2639	{
[3d56d15b]	2640	if ( ($1->type && $1->type->qualifiers.val) \|\| $2->type->qualifiers.val ) { SemanticError( yylloc, "CV qualifiers cannot be distributed; only storage-class and forall qualifiers." ); }
[fc20514]	2641	if ( ($1->type && $1->type->forall) \|\| $2->type->forall ) forall = true; // remember generic type
[9997fee]	2642	}
[3d56d15b]	2643	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	2644	{
[284da8c]	2645	distQual( $6, $1->addQualifiers( $2 ) );
[fc20514]	2646	forall = false;
[3d56d15b]	2647	$$ = $6;
[9997fee]	2648	}
[4d51835]	2649	;
	2650
	2651	external_function_definition:
	2652	function_definition
[de62360d]	2653	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	2654	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	2655	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	2656	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	2657	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	2658	\| function_declarator compound_statement
[c0a33d2]	2659	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	2660	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	2661	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	2662	;
[51b7345]	2663
[8b47e50]	2664	with_clause_opt:
	2665	// empty
[9997fee]	2666	{ $$ = nullptr; forall = false; }
[578e6037]	2667	\| WITH '(' tuple_expression_list ')'
[9997fee]	2668	{ $$ = $3; forall = false; }
[8b47e50]	2669	;
	2670
[51b7345]	2671	function_definition:
[8b47e50]	2672	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	2673	{
[481115f]	2674	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	2675	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	2676	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	2677	$$ = $1;
[4d51835]	2678	}
[8b47e50]	2679	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	2680	{
[c38ae92]	2681	rebindForall( $1, $2 );
[7fdb94e]	2682	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	2683	}
	2684	\| declaration_specifier variable_type_redeclarator with_clause_opt compound_statement
	2685	{
	2686	rebindForall( $1, $2 );
[5fcba14]	2687	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	2688	}
[a16a7ec]	2689	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2690	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2691	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	2692	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2693	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2694	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	2695	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	2696	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	2697	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	2698
	2699	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	2700	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	2701	{
[c38ae92]	2702	rebindForall( $1, $2 );
[5fcba14]	2703	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	2704	}
[a16a7ec]	2705	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	2706	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	2707	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	2708	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	2709	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	2710	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	2711	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	2712	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	2713	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	2714	;
[51b7345]	2715
	2716	declarator:
[4d51835]	2717	variable_declarator
[c6b1105]	2718	\| variable_type_redeclarator
[4d51835]	2719	\| function_declarator
	2720	;
[51b7345]	2721
	2722	subrange:
[4d51835]	2723	constant_expression '~' constant_expression // CFA, integer subrange
[db70fe4]	2724	{ $$ = new ExpressionNode( new RangeExpr( maybeMoveBuild< Expression >( $1 ), maybeMoveBuild< Expression >( $3 ) ) ); }
[4d51835]	2725	;
[b87a5ed]	2726
	2727	asm_name_opt: // GCC
[4d51835]	2728	// empty
[58dd019]	2729	{ $$ = nullptr; }
	2730	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	2731	{
	2732	DeclarationNode * name = new DeclarationNode();
	2733	name->asmName = $3;
	2734	$$ = name->addQualifiers( $5 );
	2735	}
[4d51835]	2736	;
[b87a5ed]	2737
	2738	attribute_list_opt: // GCC
[4d51835]	2739	// empty
[58dd019]	2740	{ $$ = nullptr; }
[4d51835]	2741	\| attribute_list
	2742	;
[b87a5ed]	2743
	2744	attribute_list: // GCC
[4d51835]	2745	attribute
	2746	\| attribute_list attribute
[1db21619]	2747	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	2748	;
[b87a5ed]	2749
	2750	attribute: // GCC
[44a81853]	2751	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	2752	{ $$ = $4; }
[4d51835]	2753	;
[b87a5ed]	2754
[44a81853]	2755	attribute_name_list: // GCC
	2756	attribute_name
	2757	\| attribute_name_list ',' attribute_name
[c0aa336]	2758	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2759	;
[b87a5ed]	2760
[44a81853]	2761	attribute_name: // GCC
[4d51835]	2762	// empty
[44a81853]	2763	{ $$ = nullptr; }
	2764	\| attr_name
	2765	{ $$ = DeclarationNode::newAttribute( $1 ); }
	2766	\| attr_name '(' argument_expression_list ')'
	2767	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	2768	;
[b87a5ed]	2769
[44a81853]	2770	attr_name: // GCC
	2771	IDENTIFIER
[5b2edbc]	2772	\| quasi_keyword
[44a81853]	2773	\| TYPEDEFname
	2774	\| TYPEGENname
[114014c]	2775	\| FALLTHROUGH
	2776	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	2777	\| CONST
[9ff56e7]	2778	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	2779	;
[51b7345]	2780
[c11e31c]	2781	// ============================================================================
[de62360d]	2782	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	2783	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	2784	// in:
[c11e31c]	2785	//
[b87a5ed]	2786	// int (*f())[10] { ... };
	2787	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	2788	//
[de62360d]	2789	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	2790	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	2791	// ============================================================================
	2792
	2793	// ----------------------------------------------------------------------------
[de62360d]	2794	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	2795	// to define a variable or function prototype, e.g.:
[c11e31c]	2796	//
[b87a5ed]	2797	// valid declaration invalid definition
	2798	// ----------------- ------------------
[4d51835]	2799	// int f; int f {}
	2800	// int f; int f {}
[b87a5ed]	2801	// int f[10]; int f[10] {}
[4d51835]	2802	// int (f)(int); int (f)(int) {}
[c11e31c]	2803	//
[de62360d]	2804	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	2805	// variable_declarator and function_declarator.
[c11e31c]	2806	// ----------------------------------------------------------------------------
	2807
[de62360d]	2808	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	2809	// declaring an array of functions versus a pointer to an array of functions.
[51b7345]	2810
	2811	variable_declarator:
[4d51835]	2812	paren_identifier attribute_list_opt
[1db21619]	2813	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2814	\| variable_ptr
	2815	\| variable_array attribute_list_opt
[1db21619]	2816	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2817	\| variable_function attribute_list_opt
[1db21619]	2818	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2819	;
[51b7345]	2820
	2821	paren_identifier:
[4d51835]	2822	identifier
[7fdb94e]	2823	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	2824	\| '(' paren_identifier ')' // redundant parenthesis
	2825	{ $$ = $2; }
	2826	;
[51b7345]	2827
	2828	variable_ptr:
[dd51906]	2829	ptrref_operator variable_declarator
[ce8c12f]	2830	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2831	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	2832	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2833	\| '(' variable_ptr ')' attribute_list_opt
	2834	{ $$ = $2->addQualifiers( $4 ); } // redundant parenthesis
[4d51835]	2835	;
[51b7345]	2836
	2837	variable_array:
[4d51835]	2838	paren_identifier array_dimension
	2839	{ $$ = $1->addArray( $2 ); }
	2840	\| '(' variable_ptr ')' array_dimension
	2841	{ $$ = $2->addArray( $4 ); }
	2842	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
	2843	{ $$ = $2->addArray( $4 ); }
	2844	\| '(' variable_array ')' // redundant parenthesis
	2845	{ $$ = $2; }
	2846	;
[51b7345]	2847
	2848	variable_function:
[4d51835]	2849	'(' variable_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2850	{ $$ = $2->addParamList( $6 ); }
	2851	\| '(' variable_function ')' // redundant parenthesis
	2852	{ $$ = $2; }
	2853	;
[51b7345]	2854
[c6b1105]	2855	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	2856	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	2857	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b7345]	2858
	2859	function_declarator:
[4d51835]	2860	function_no_ptr attribute_list_opt
[1db21619]	2861	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2862	\| function_ptr
	2863	\| function_array attribute_list_opt
[1db21619]	2864	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2865	;
[51b7345]	2866
	2867	function_no_ptr:
[4d51835]	2868	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	2869	{ $$ = $1->addParamList( $4 ); }
	2870	\| '(' function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2871	{ $$ = $2->addParamList( $6 ); }
	2872	\| '(' function_no_ptr ')' // redundant parenthesis
	2873	{ $$ = $2; }
	2874	;
[51b7345]	2875
	2876	function_ptr:
[dd51906]	2877	ptrref_operator function_declarator
[ce8c12f]	2878	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	2879	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	2880	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[4d51835]	2881	\| '(' function_ptr ')'
	2882	{ $$ = $2; }
	2883	;
[51b7345]	2884
	2885	function_array:
[4d51835]	2886	'(' function_ptr ')' array_dimension
	2887	{ $$ = $2->addArray( $4 ); }
	2888	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	2889	{ $$ = $2->addArray( $4 ); }
	2890	\| '(' function_array ')' // redundant parenthesis
	2891	{ $$ = $2; }
	2892	;
[51b7345]	2893
[c0aa336]	2894	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	2895	//
	2896	// f( a, b, c ) int a, *b, c[]; {}
	2897	//
	2898	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	2899	// returning arrays and functions versus pointers to arrays and functions.
[51b7345]	2900
[c0aa336]	2901	KR_function_declarator:
	2902	KR_function_no_ptr
	2903	\| KR_function_ptr
	2904	\| KR_function_array
[4d51835]	2905	;
[51b7345]	2906
[c0aa336]	2907	KR_function_no_ptr:
[4d51835]	2908	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	2909	{ $$ = $1->addIdList( $3 ); }
[c0a33d2]	2910	\| '(' KR_function_ptr ')' '(' push parameter_type_list_opt pop ')'
	2911	{ $$ = $2->addParamList( $6 ); }
[c0aa336]	2912	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	2913	{ $$ = $2; }
	2914	;
[51b7345]	2915
[c0aa336]	2916	KR_function_ptr:
	2917	ptrref_operator KR_function_declarator
[ce8c12f]	2918	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	2919	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	2920	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2921	\| '(' KR_function_ptr ')'
[4d51835]	2922	{ $$ = $2; }
	2923	;
[51b7345]	2924
[c0aa336]	2925	KR_function_array:
	2926	'(' KR_function_ptr ')' array_dimension
[4d51835]	2927	{ $$ = $2->addArray( $4 ); }
[c0aa336]	2928	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2929	{ $$ = $2->addArray( $4 ); }
[c0aa336]	2930	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	2931	{ $$ = $2; }
	2932	;
[51b7345]	2933
[2871210]	2934	// This pattern parses a declaration for a variable or function prototype that redefines a type name, e.g.:
[c11e31c]	2935	//
[b87a5ed]	2936	// typedef int foo;
	2937	// {
	2938	// int foo; // redefine typedef name in new scope
	2939	// }
[c11e31c]	2940	//
[de62360d]	2941	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	2942	// and functions versus pointers to arrays and functions.
[51b7345]	2943
[c6b1105]	2944	variable_type_redeclarator:
[2871210]	2945	paren_type attribute_list_opt
[1db21619]	2946	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2947	\| type_ptr
	2948	\| type_array attribute_list_opt
[1db21619]	2949	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	2950	\| type_function attribute_list_opt
[1db21619]	2951	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	2952	;
[51b7345]	2953
[2871210]	2954	paren_type:
	2955	typedef
[2f0a0678]	2956	// hide type name in enclosing scope by variable name
[c4f68dc]	2957	{
	2958	// if ( ! typedefTable.existsCurr( *$1->name ) ) {
	2959	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "ID" );
	2960	// } else {
	2961	// SemanticError( yylloc, string("'") + *$1->name + "' redeclared as different kind of symbol." ); $$ = nullptr;
	2962	// } // if
	2963	}
[2871210]	2964	\| '(' paren_type ')'
[4d51835]	2965	{ $$ = $2; }
	2966	;
[51b7345]	2967
[2871210]	2968	type_ptr:
[c6b1105]	2969	ptrref_operator variable_type_redeclarator
[ce8c12f]	2970	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c6b1105]	2971	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	2972	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	2973	\| '(' type_ptr ')' attribute_list_opt
[c4f68dc]	2974	{ $$ = $2->addQualifiers( $4 ); } // redundant parenthesis
[4d51835]	2975	;
[51b7345]	2976
[2871210]	2977	type_array:
	2978	paren_type array_dimension
[4d51835]	2979	{ $$ = $1->addArray( $2 ); }
[2871210]	2980	\| '(' type_ptr ')' array_dimension
[4d51835]	2981	{ $$ = $2->addArray( $4 ); }
[2871210]	2982	\| '(' type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	2983	{ $$ = $2->addArray( $4 ); }
[2871210]	2984	\| '(' type_array ')' // redundant parenthesis
[4d51835]	2985	{ $$ = $2; }
	2986	;
[51b7345]	2987
[2871210]	2988	type_function:
	2989	paren_type '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2990	{ $$ = $1->addParamList( $4 ); }
[2871210]	2991	\| '(' type_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
[4d51835]	2992	{ $$ = $2->addParamList( $6 ); }
[2871210]	2993	\| '(' type_function ')' // redundant parenthesis
[4d51835]	2994	{ $$ = $2; }
	2995	;
[51b7345]	2996
[c0aa336]	2997	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	2998	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	2999	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3000	// pointers to arrays and functions.
[51b7345]	3001
	3002	identifier_parameter_declarator:
[4d51835]	3003	paren_identifier attribute_list_opt
[1db21619]	3004	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3005	\| '&' MUTEX paren_identifier attribute_list_opt
	3006	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3007	\| identifier_parameter_ptr
	3008	\| identifier_parameter_array attribute_list_opt
[1db21619]	3009	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3010	\| identifier_parameter_function attribute_list_opt
[1db21619]	3011	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3012	;
[51b7345]	3013
	3014	identifier_parameter_ptr:
[dd51906]	3015	ptrref_operator identifier_parameter_declarator
[ce8c12f]	3016	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3017	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3018	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3019	\| '(' identifier_parameter_ptr ')' attribute_list_opt
	3020	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3021	;
[51b7345]	3022
	3023	identifier_parameter_array:
[4d51835]	3024	paren_identifier array_parameter_dimension
	3025	{ $$ = $1->addArray( $2 ); }
	3026	\| '(' identifier_parameter_ptr ')' array_dimension
	3027	{ $$ = $2->addArray( $4 ); }
	3028	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3029	{ $$ = $2->addArray( $4 ); }
	3030	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3031	{ $$ = $2; }
	3032	;
[51b7345]	3033
	3034	identifier_parameter_function:
[c0a33d2]	3035	paren_identifier '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3036	{ $$ = $1->addParamList( $4 ); }
	3037	\| '(' identifier_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3038	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3039	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3040	{ $$ = $2; }
	3041	;
[b87a5ed]	3042
[de62360d]	3043	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3044	// e.g.:
[c11e31c]	3045	//
[b87a5ed]	3046	// typedef int foo;
[114014c]	3047	// forall( otype T ) struct foo;
[b87a5ed]	3048	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3049	//
[c0aa336]	3050	// and allows the C99 array options, which can only appear in a parameter list.
[51b7345]	3051
[2871210]	3052	type_parameter_redeclarator:
[4d51835]	3053	typedef attribute_list_opt
[1db21619]	3054	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3055	\| '&' MUTEX typedef attribute_list_opt
	3056	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3057	\| type_parameter_ptr
	3058	\| type_parameter_array attribute_list_opt
[1db21619]	3059	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3060	\| type_parameter_function attribute_list_opt
[1db21619]	3061	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3062	;
[51b7345]	3063
	3064	typedef:
[4d51835]	3065	TYPEDEFname
[7fdb94e]	3066	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3067	\| TYPEGENname
[7fdb94e]	3068	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3069	;
[51b7345]	3070
[2871210]	3071	type_parameter_ptr:
[dd51906]	3072	ptrref_operator type_parameter_redeclarator
[ce8c12f]	3073	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3074	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3075	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3076	\| '(' type_parameter_ptr ')' attribute_list_opt
	3077	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3078	;
[51b7345]	3079
[2871210]	3080	type_parameter_array:
[4d51835]	3081	typedef array_parameter_dimension
	3082	{ $$ = $1->addArray( $2 ); }
[2871210]	3083	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3084	{ $$ = $2->addArray( $4 ); }
	3085	;
[51b7345]	3086
[2871210]	3087	type_parameter_function:
[c0a33d2]	3088	typedef '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3089	{ $$ = $1->addParamList( $4 ); }
	3090	\| '(' type_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3091	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3092	;
[b87a5ed]	3093
[de62360d]	3094	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3095	// which the type applies, e.g.:
[c11e31c]	3096	//
[b87a5ed]	3097	// sizeof( int );
[c0aa336]	3098	// sizeof( int * );
[b87a5ed]	3099	// sizeof( int [10] );
[c0aa336]	3100	// sizeof( int (*)() );
	3101	// sizeof( int () );
[c11e31c]	3102	//
[de62360d]	3103	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3104	// and functions versus pointers to arrays and functions.
[51b7345]	3105
	3106	abstract_declarator:
[4d51835]	3107	abstract_ptr
	3108	\| abstract_array attribute_list_opt
[1db21619]	3109	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3110	\| abstract_function attribute_list_opt
[1db21619]	3111	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3112	;
[51b7345]	3113
	3114	abstract_ptr:
[dd51906]	3115	ptrref_operator
[ce8c12f]	3116	{ $$ = DeclarationNode::newPointer( 0, $1 ); }
[dd51906]	3117	\| ptrref_operator type_qualifier_list
[ce8c12f]	3118	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3119	\| ptrref_operator abstract_declarator
[ce8c12f]	3120	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3121	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3122	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3123	\| '(' abstract_ptr ')' attribute_list_opt
	3124	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3125	;
[51b7345]	3126
	3127	abstract_array:
[4d51835]	3128	array_dimension
	3129	\| '(' abstract_ptr ')' array_dimension
	3130	{ $$ = $2->addArray( $4 ); }
	3131	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3132	{ $$ = $2->addArray( $4 ); }
	3133	\| '(' abstract_array ')' // redundant parenthesis
	3134	{ $$ = $2; }
	3135	;
[51b7345]	3136
	3137	abstract_function:
[c0a33d2]	3138	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3139	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
	3140	\| '(' abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3141	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3142	\| '(' abstract_function ')' // redundant parenthesis
	3143	{ $$ = $2; }
	3144	;
[51b7345]	3145
	3146	array_dimension:
[4d51835]	3147	// Only the first dimension can be empty.
[2871210]	3148	'[' ']'
[4d51835]	3149	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[2871210]	3150	\| '[' ']' multi_array_dimension
	3151	{ $$ = DeclarationNode::newArray( 0, 0, false )->addArray( $3 ); }
[4d51835]	3152	\| multi_array_dimension
	3153	;
[51b7345]	3154
	3155	multi_array_dimension:
[c0a33d2]	3156	'[' push assignment_expression pop ']'
	3157	{ $$ = DeclarationNode::newArray( $3, 0, false ); }
	3158	\| '[' push '*' pop ']' // C99
[4d51835]	3159	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	3160	\| multi_array_dimension '[' push assignment_expression pop ']'
	3161	{ $$ = $1->addArray( DeclarationNode::newArray( $4, 0, false ) ); }
	3162	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	3163	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	3164	;
[51b7345]	3165
[c11e31c]	3166	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	3167	// identifier to which the type applies, e.g.:
	3168	//
[c0aa336]	3169	// int f( int ); // not handled here
	3170	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	3171	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	3172	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	3173	//
[de62360d]	3174	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[c0aa336]	3175	// and functions versus pointers to arrays and functions. In addition, the pattern handles the
	3176	// special meaning of parenthesis around a typedef name:
	3177	//
	3178	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	3179	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	3180	// not as redundant parentheses around the identifier."
	3181	//
	3182	// For example:
	3183	//
	3184	// typedef float T;
	3185	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	3186	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	3187	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	3188	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	3189	//
	3190	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	3191	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	3192	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	3193	// functions.
[51b7345]	3194
	3195	abstract_parameter_declarator:
[4d51835]	3196	abstract_parameter_ptr
[b6b3c42]	3197	\| '&' MUTEX attribute_list_opt
	3198	{ $$ = DeclarationNode::newPointer( DeclarationNode::newTypeQualifier( Type::Mutex ), OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	3199	\| abstract_parameter_array attribute_list_opt
[1db21619]	3200	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3201	\| abstract_parameter_function attribute_list_opt
[1db21619]	3202	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3203	;
[51b7345]	3204
	3205	abstract_parameter_ptr:
[dd51906]	3206	ptrref_operator
[ce8c12f]	3207	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3208	\| ptrref_operator type_qualifier_list
[ce8c12f]	3209	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3210	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	3211	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3212	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	3213	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3214	\| '(' abstract_parameter_ptr ')' attribute_list_opt
	3215	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3216	;
[51b7345]	3217
	3218	abstract_parameter_array:
[4d51835]	3219	array_parameter_dimension
	3220	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	3221	{ $$ = $2->addArray( $4 ); }
	3222	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	3223	{ $$ = $2->addArray( $4 ); }
	3224	\| '(' abstract_parameter_array ')' // redundant parenthesis
	3225	{ $$ = $2; }
	3226	;
[51b7345]	3227
	3228	abstract_parameter_function:
[c0a33d2]	3229	'(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3230	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $3, nullptr ); }
	3231	\| '(' abstract_parameter_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3232	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3233	\| '(' abstract_parameter_function ')' // redundant parenthesis
	3234	{ $$ = $2; }
	3235	;
[51b7345]	3236
	3237	array_parameter_dimension:
[4d51835]	3238	// Only the first dimension can be empty or have qualifiers.
	3239	array_parameter_1st_dimension
	3240	\| array_parameter_1st_dimension multi_array_dimension
	3241	{ $$ = $1->addArray( $2 ); }
	3242	\| multi_array_dimension
	3243	;
[51b7345]	3244
[c11e31c]	3245	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	3246	//
[de62360d]	3247	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	3248	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b7345]	3249
	3250	array_parameter_1st_dimension:
[2871210]	3251	'[' ']'
[4d51835]	3252	{ $$ = DeclarationNode::newArray( 0, 0, false ); }
[13e8427]	3253	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	3254	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	3255	{ $$ = DeclarationNode::newVarArray( $3 ); }
	3256	\| '[' push type_qualifier_list pop ']'
	3257	{ $$ = DeclarationNode::newArray( 0, $3, false ); }
[13e8427]	3258	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	3259	\| '[' push type_qualifier_list assignment_expression pop ']'
	3260	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	3261	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	3262	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	3263	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	3264	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	3265	;
[b87a5ed]	3266
[c0aa336]	3267	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	3268	//
[c0aa336]	3269	// struct S {
	3270	// int;
	3271	// int *;
	3272	// int [10];
	3273	// int (*)();
	3274	// };
[51b7345]	3275
	3276	variable_abstract_declarator:
[4d51835]	3277	variable_abstract_ptr
	3278	\| variable_abstract_array attribute_list_opt
[1db21619]	3279	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3280	\| variable_abstract_function attribute_list_opt
[1db21619]	3281	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3282	;
[51b7345]	3283
	3284	variable_abstract_ptr:
[dd51906]	3285	ptrref_operator
[ce8c12f]	3286	{ $$ = DeclarationNode::newPointer( 0, $1 ); }
[dd51906]	3287	\| ptrref_operator type_qualifier_list
[ce8c12f]	3288	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3289	\| ptrref_operator variable_abstract_declarator
[ce8c12f]	3290	{ $$ = $2->addPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3291	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	3292	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3293	\| '(' variable_abstract_ptr ')' attribute_list_opt
	3294	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3295	;
[51b7345]	3296
	3297	variable_abstract_array:
[4d51835]	3298	array_dimension
	3299	\| '(' variable_abstract_ptr ')' array_dimension
	3300	{ $$ = $2->addArray( $4 ); }
	3301	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	3302	{ $$ = $2->addArray( $4 ); }
	3303	\| '(' variable_abstract_array ')' // redundant parenthesis
	3304	{ $$ = $2; }
	3305	;
[51b7345]	3306
	3307	variable_abstract_function:
[c0a33d2]	3308	'(' variable_abstract_ptr ')' '(' push parameter_type_list_opt pop ')' // empty parameter list OBSOLESCENT (see 3)
	3309	{ $$ = $2->addParamList( $6 ); }
[4d51835]	3310	\| '(' variable_abstract_function ')' // redundant parenthesis
	3311	{ $$ = $2; }
	3312	;
[b87a5ed]	3313
[de62360d]	3314	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	3315	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	3316
[c0aa336]	3317	cfa_identifier_parameter_declarator_tuple: // CFA
	3318	cfa_identifier_parameter_declarator_no_tuple
	3319	\| cfa_abstract_tuple
	3320	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	3321	{ $$ = $2->addQualifiers( $1 ); }
	3322	;
[b87a5ed]	3323
[c0aa336]	3324	cfa_identifier_parameter_declarator_no_tuple: // CFA
	3325	cfa_identifier_parameter_ptr
	3326	\| cfa_identifier_parameter_array
[4d51835]	3327	;
[b87a5ed]	3328
[c0aa336]	3329	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	3330	// No SUE declaration in parameter list.
	3331	ptrref_operator type_specifier_nobody
[ce8c12f]	3332	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[d0ffed1]	3333	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	3334	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3335	\| ptrref_operator cfa_abstract_function
[ce8c12f]	3336	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3337	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	3338	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3339	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	3340	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3341	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	3342	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	3343	;
[b87a5ed]	3344
[c0aa336]	3345	cfa_identifier_parameter_array: // CFA
[de62360d]	3346	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	3347	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	3348	'[' ']' type_specifier_nobody
[2871210]	3349	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[d0ffed1]	3350	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	3351	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	3352	\| '[' ']' multi_array_dimension type_specifier_nobody
[2871210]	3353	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[d0ffed1]	3354	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	3355	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	3356	\| multi_array_dimension type_specifier_nobody
[4d51835]	3357	{ $$ = $2->addNewArray( $1 ); }
[9059213]	3358
[c0aa336]	3359	\| '[' ']' cfa_identifier_parameter_ptr
[2871210]	3360	{ $$ = $3->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[c0aa336]	3361	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	3362	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	3363	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[2871210]	3364	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( 0, 0, false ) ); }
[c0aa336]	3365	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	3366	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	3367	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	3368	{ $$ = $2->addNewArray( $1 ); }
	3369	;
[51b7345]	3370
[c0aa336]	3371	cfa_array_parameter_1st_dimension:
[c0a33d2]	3372	'[' push type_qualifier_list '*' pop ']' // remaining C99
	3373	{ $$ = DeclarationNode::newVarArray( $3 ); }
	3374	\| '[' push type_qualifier_list assignment_expression pop ']'
	3375	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	3376	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	3377	// declaration_qualifier_list must be used because of shift/reduce conflict with
	3378	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	3379	// appear in this context.
[c0a33d2]	3380	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	3381	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	3382	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	3383	;
[b87a5ed]	3384
[de62360d]	3385	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	3386	// identifier to which the type applies, e.g.:
[c11e31c]	3387	//
[b87a5ed]	3388	// [int] f( int ); // abstract variable parameter; no parameter name specified
	3389	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	3390	//
	3391	// These rules need LR(3):
	3392	//
[c0aa336]	3393	// cfa_abstract_tuple identifier_or_type_name
[40de461]	3394	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_ellipsis_list_opt ')'
[c11e31c]	3395	//
	3396	// since a function return type can be syntactically identical to a tuple type:
	3397	//
[b87a5ed]	3398	// [int, int] t;
	3399	// [int, int] f( int );
[c11e31c]	3400	//
[2871210]	3401	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	3402	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	3403	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	3404	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	3405
[c0aa336]	3406	cfa_abstract_declarator_tuple: // CFA
	3407	cfa_abstract_tuple
	3408	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	3409	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	3410	\| cfa_abstract_declarator_no_tuple
[4d51835]	3411	;
[b87a5ed]	3412
[c0aa336]	3413	cfa_abstract_declarator_no_tuple: // CFA
	3414	cfa_abstract_ptr
	3415	\| cfa_abstract_array
[4d51835]	3416	;
[b87a5ed]	3417
[c0aa336]	3418	cfa_abstract_ptr: // CFA
[dd51906]	3419	ptrref_operator type_specifier
[ce8c12f]	3420	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[dd51906]	3421	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	3422	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3423	\| ptrref_operator cfa_abstract_function
[ce8c12f]	3424	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3425	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	3426	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	3427	\| ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	3428	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( 0, $1 ) ); }
[c0aa336]	3429	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	3430	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	3431	;
[b87a5ed]	3432
[c0aa336]	3433	cfa_abstract_array: // CFA
[de62360d]	3434	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	3435	// empty (void) function return type.
[2871210]	3436	'[' ']' type_specifier
[2298f728]	3437	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	3438	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	3439	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	3440	\| multi_array_dimension type_specifier
	3441	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	3442	\| '[' ']' cfa_abstract_ptr
[2298f728]	3443	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	3444	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	3445	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	3446	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	3447	{ $$ = $2->addNewArray( $1 ); }
	3448	;
[b87a5ed]	3449
[c0aa336]	3450	cfa_abstract_tuple: // CFA
[c0a33d2]	3451	'[' push cfa_abstract_parameter_list pop ']'
	3452	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	3453	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	3454	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	3455	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	3456	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	3457	;
[b87a5ed]	3458
[c0aa336]	3459	cfa_abstract_function: // CFA
[40de461]	3460	// '[' ']' '(' cfa_parameter_ellipsis_list_opt ')'
[1b29996]	3461	// { $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
[40de461]	3462	cfa_abstract_tuple '(' push cfa_parameter_ellipsis_list_opt pop ')'
[c0a33d2]	3463	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[40de461]	3464	\| cfa_function_return '(' push cfa_parameter_ellipsis_list_opt pop ')'
[c0a33d2]	3465	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	3466	;
[b87a5ed]	3467
[de62360d]	3468	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	3469	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	3470	//
[de62360d]	3471	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	3472	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	3473	//
	3474	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	3475	// prototype-format parameter type declarators) is an obsolescent feature."
	3476	//
[de62360d]	3477	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	3478	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b7345]	3479
[c11e31c]	3480	//*********************** MISCELLANEOUS ******************************
[51b7345]	3481
[b87a5ed]	3482	comma_opt: // redundant comma
[4d51835]	3483	// empty
	3484	\| ','
	3485	;
[51b7345]	3486
[994d080]	3487	default_initialize_opt:
[4d51835]	3488	// empty
[58dd019]	3489	{ $$ = nullptr; }
[4d51835]	3490	\| '=' assignment_expression
	3491	{ $$ = $2; }
	3492	;
[51b7345]	3493
	3494	%%
[a1c9ddd]	3495
[c11e31c]	3496	// ----end of grammar----
[51b7345]	3497
[c11e31c]	3498	// Local Variables: //
[b87a5ed]	3499	// mode: c++ //
[de62360d]	3500	// tab-width: 4 //
[c11e31c]	3501	// compile-command: "make install" //
	3502	// End: //

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