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Last change on this file since 00f89a6 was 1a8b17a, checked in by Peter A. Buhr <pabuhr@…>, 11 months ago
add C23 attributes, require comma terminator for nullary and unary tuple (optional terminator for Nary tuples), change designator to C syntax using equal rather than colon
Property mode set to `100644`
File size: 179.3 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
[04c78215]	11	// Last Modified By : Peter A. Buhr
[1a8b17a]	12	// Last Modified On : Sun Oct 13 12:18:15 2024
	13	// Update Count : 6845
[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	//
[9380add]	28	// designation with '=' (use ':' instead)
[c11e31c]	29	//
[9380add]	30	// This incompatibility is discussed in detail before the "designation" grammar rule. Most of the syntactic extensions
	31	// from ANSI90 to ANSI11 C are marked with the comment "C99/C11".
[f9c3100]	32
[e16eb460]	33	// This grammar also has two levels of extensions. The first extensions cover most of the GCC C extensions. All of the
[9380add]	34	// syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall (CFA), which
	35	// fixes several of C's outstanding problems and extends C with many modern language concepts. All of the syntactic
	36	// extensions for CFA C are marked with the comment "CFA".
[51b73452]	37
	38	%{
[ec3f9c8]	39	#define YYDEBUG_LEXER_TEXT( yylval ) // lexer loads this up each time
[b87a5ed]	40	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	41	#define YYERROR_VERBOSE // more information in syntax errors
[51b73452]	42
	43	#undef __GNUC_MINOR__
	44
	45	#include <cstdio>
[9feb34b]	46	#include <sstream>
[51b73452]	47	#include <stack>
[9ed4f94]	48	using namespace std;
	49
[c92bdcc]	50	#include "DeclarationNode.hpp" // for DeclarationNode, ...
	51	#include "ExpressionNode.hpp" // for ExpressionNode, ...
	52	#include "InitializerNode.hpp" // for InitializerNode, ...
	53	#include "ParserTypes.hpp"
	54	#include "StatementNode.hpp" // for build_...
	55	#include "TypedefTable.hpp"
	56	#include "TypeData.hpp"
[7a780ad]	57	#include "AST/Type.hpp" // for BasicType, BasicKind
[c92bdcc]	58	#include "Common/SemanticError.hpp" // error_str
	59	#include "Common/Utility.hpp" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b73452]	60
[ae2f2ae]	61	// lex uses __null in a boolean context, it's fine.
[0bd46fd]	62	#ifdef __clang__
[09f34a84]	63	#pragma GCC diagnostic ignored "-Wparentheses-equality"
[0bd46fd]	64	#endif
[ae2f2ae]	65
[cbaee0d]	66	extern DeclarationNode * parseTree;
[bb7422a]	67	extern ast::Linkage::Spec linkage;
[0da3e2c]	68	extern TypedefTable typedefTable;
	69
[bb7422a]	70	stack<ast::Linkage::Spec> linkageStack;
[7bf7fb9]	71
[15697ff]	72	bool appendStr( string & to, string & from ) {
	73	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	74	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	75	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	76	// easier to let the C compiler handle this case.
	77	//
	78	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	79	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
[efc8f3e]	80	// e.g., u"a" U"b" L"c" is disallowed.
[15697ff]	81
	82	if ( from[0] != '"' ) { // encoding ?
	83	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	84	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	85	yyerror( "non-matching string encodings for string-literal concatenation" );
	86	return false; // parse error, must call YYERROR in action
[ea0c5e3]	87	} else if ( from[1] == '8' ) {
	88	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	89	} // if
	90	} else {
[ea0c5e3]	91	if ( from[1] == '8' ) { // move encoding to start
	92	to = "u8" + to;
	93	from.erase( 0, 1 ); // remove 2nd encoding
	94	} else {
	95	to = from[0] + to;
	96	} // if
[15697ff]	97	} // if
	98	from.erase( 0, 1 ); // remove 2nd encoding
	99	} // if
	100	to += " " + from; // concatenated into single string
	101	return true;
[7bf7fb9]	102	} // appendStr
[c0aa336]	103
[d8454b9]	104	DeclarationNode * distAttr( DeclarationNode * typeSpec, DeclarationNode * declList ) {
[4eb3a7c5]	105	// Distribute type specifier across all declared variables, e.g., static, const, __attribute__.
[d8454b9]	106	assert( declList );
	107
[4eb3a7c5]	108	// Do not distribute attributes for aggregates because the attributes surrounding the aggregate belong it not the
	109	// variables in the declaration list, e.g.,
	110	//
	111	// struct __attribute__(( aligned(128) )) S { ...
	112	// } v1 __attribute__(( aligned(64) )), v2 __attribute__(( aligned(32) )), v3;
	113	// struct S v4;
	114	//
	115	// v1 => 64, v2 =>32, v3 => 128, v2 => 128
	116	//
	117	// Anonymous aggregates are a special case because there is no aggregate to bind the attribute to; hence it floats
	118	// to the declaration list.
	119	//
	120	// struct __attribute__(( aligned(128) )) /anonymous / { ... } v1;
	121	//
	122	// v1 => 128
	123
	124	bool copyattr = ! (typeSpec->type && typeSpec->type->kind == TypeData::Aggregate && ! typeSpec->type->aggregate.anon );
	125
	126	// addType copies the type information for the aggregate instances from typeSpec into cl's aggInst.aggregate.
	127	DeclarationNode * cl = (new DeclarationNode)->addType( typeSpec ); // typeSpec IS DELETED!!!
	128
[647e2ea]	129	// Start at second variable in declaration list and clone the type specifiers for each variable.
[44adf1b]	130	for ( DeclarationNode * cur = declList->next ; cur != nullptr; cur = cur->next ) {
[4eb3a7c5]	131	cl->cloneBaseType( cur, copyattr ); // cur is modified
[c0aa336]	132	} // for
[4eb3a7c5]	133
	134	// Add first variable in declaration list with hidden type information in aggInst.aggregate, which is used by
	135	// extractType to recover the type for the aggregate instances.
	136	declList->addType( cl, copyattr ); // cl IS DELETED!!!
[c0aa336]	137	return declList;
	138	} // distAttr
	139
	140	void distExt( DeclarationNode * declaration ) {
	141	// distribute EXTENSION across all declarations
[44adf1b]	142	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[c0aa336]	143	iter->set_extension( true );
	144	} // for
	145	} // distExt
[fdca7c6]	146
[e07caa2]	147	void distInl( DeclarationNode * declaration ) {
[5695645]	148	// distribute INLINE across all declarations
[44adf1b]	149	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[e07caa2]	150	iter->set_inLine( true );
	151	} // for
	152	} // distInl
	153
[4c3ee8d]	154	void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) {
[284da8c]	155	// distribute qualifiers across all non-variable declarations in a distribution statemement
[44adf1b]	156	for ( DeclarationNode * iter = declaration ; iter != nullptr ; iter = iter->next ) {
[284da8c]	157	// SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since
	158	// addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To
	159	// get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to
	160	// be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers.
	161	DeclarationNode * clone = qualifiers->clone();
	162	if ( qualifiers->type ) { // forall clause ? (handles SC)
	163	if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ?
	164	swap( clone->type->forall, iter->type->aggregate.params );
	165	iter->addQualifiers( clone );
	166	} else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ?
	167	// Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together.
	168	DeclarationNode newnode;
	169	swap( newnode.type, iter->type->aggInst.aggregate );
	170	swap( clone->type->forall, newnode.type->aggregate.params );
	171	newnode.addQualifiers( clone );
	172	swap( newnode.type, iter->type->aggInst.aggregate );
	173	} else if ( iter->type->kind == TypeData::Function ) { // routines ?
	174	swap( clone->type->forall, iter->type->forall );
	175	iter->addQualifiers( clone );
	176	} // if
	177	} else { // just SC qualifiers
	178	iter->addQualifiers( clone );
	179	} // if
[4c3ee8d]	180	} // for
[284da8c]	181	delete qualifiers;
	182	} // distQual
[4c3ee8d]	183
[c38ae92]	184	// There is an ambiguity for inline generic-routine return-types and generic routines.
	185	// forall( otype T ) struct S { int i; } bar( T ) {}
	186	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	187	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e1]	188	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	189	// forall( otype T ) struct S { int T; };
	190	// forall( otype W ) bar( W ) {}
[c38ae92]	191
	192	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e1]	193	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	194	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	195	declSpec->type->aggregate.params = nullptr;
	196	} // if
	197	} // rebindForall
	198
[60a8062]	199	string * build_postfix_name( string * name ) {
	200	name = string("__postfix_func_") + name;
	201	return name;
[dc7db63]	202	} // build_postfix_name
	203
[f7e4db27]	204	DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) {
[67467a3]	205	if ( nullptr == fieldList ) {
	206	if ( !( typeSpec->type && typeSpec->type->kind == TypeData::Aggregate ) ) {
[f7e4db27]	207	stringstream ss;
[d8454b9]	208	// printf( "fieldDecl1 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	209	SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() );
	210	return nullptr;
	211	} // if
[d8454b9]	212	// printf( "fieldDecl2 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	213	fieldList = DeclarationNode::newName( nullptr );
	214	} // if
[d8454b9]	215
	216	// printf( "fieldDecl3 typeSpec %p\n", typeSpec ); typeSpec->print( std::cout, 0 );
[4eb3a7c5]	217	DeclarationNode * temp = distAttr( typeSpec, fieldList ); // mark all fields in list
[d8454b9]	218	// printf( "fieldDecl4 temp %p\n", temp ); temp->print( std::cout, 0 );
	219	return temp;
[f7e4db27]	220	} // fieldDecl
	221
[bb7422a]	222	#define NEW_ZERO new ExpressionNode( build_constantInteger( yylloc, *new string( "0" ) ) )
	223	#define NEW_ONE new ExpressionNode( build_constantInteger( yylloc, *new string( "1" ) ) )
[52be5948]	224	#define UPDOWN( compop, left, right ) (compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? left : right)
[253d0b4]	225	#define MISSING_ANON_FIELD "illegal syntax, missing loop fields with an anonymous loop index is meaningless as loop index is unavailable in loop body."
[01afd8d]	226	#define MISSING_LOW "illegal syntax, missing low value for ascanding range so index is uninitialized."
	227	#define MISSING_HIGH "illegal syntax, missing high value for descending range so index is uninitialized."
[253d0b4]	228
[089b39e1]	229	static ForCtrl * makeForCtrl( const CodeLocation & location, DeclarationNode * init, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1cdc052]	230	// Wrap both comp/inc if they are non-null.
[bb7422a]	231	if ( comp ) comp = new ExpressionNode( build_binary_val( location,
[1cdc052]	232	compop,
[bb7422a]	233	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	234	comp ) );
[bb7422a]	235	if ( inc ) inc = new ExpressionNode( build_binary_val( location,
[1cdc052]	236	// choose += or -= for upto/downto
	237	compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? OperKinds::PlusAssn : OperKinds::MinusAssn,
[bb7422a]	238	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	239	inc ) );
	240	// The StatementNode call frees init->name, it must happen later.
	241	return new ForCtrl( new StatementNode( init ), comp, inc );
	242	}
	243
[089b39e1]	244	ForCtrl * forCtrl( const CodeLocation & location, DeclarationNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[d78c238]	245	if ( index->initializer ) {
[253d0b4]	246	SemanticError( yylloc, "illegal syntax, direct initialization disallowed. Use instead: type var; initialization ~ comparison ~ increment." );
[d78c238]	247	} // if
	248	if ( index->next ) {
[253d0b4]	249	SemanticError( yylloc, "illegal syntax, multiple loop indexes disallowed in for-loop declaration." );
[d78c238]	250	} // if
[1cdc052]	251	DeclarationNode * initDecl = index->addInitializer( new InitializerNode( start ) );
[bb7422a]	252	return makeForCtrl( location, initDecl, compop, comp, inc );
[d78c238]	253	} // forCtrl
	254
[089b39e1]	255	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, string * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	256	ast::ConstantExpr * constant = dynamic_cast<ast::ConstantExpr *>(type->expr.get());
	257	if ( constant && (constant->rep == "0" \|\| constant->rep == "1") ) {
[7a780ad]	258	type = new ExpressionNode( new ast::CastExpr( location, maybeMoveBuild(type), new ast::BasicType( ast::BasicKind::SignedInt ) ) );
[0982a05]	259	} // if
[1cdc052]	260	DeclarationNode * initDecl = distAttr(
	261	DeclarationNode::newTypeof( type, true ),
	262	DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) )
	263	);
[bb7422a]	264	return makeForCtrl( location, initDecl, compop, comp, inc );
[f271bdd]	265	} // forCtrl
	266
[253d0b4]	267	#define MISSING_LOOP_INDEX "illegal syntax, only a single identifier or declaration allowed in initialization, e.g., for ( i; ... ) or for ( int i; ... ). Expression disallowed."
	268
[089b39e1]	269	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	270	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index->expr.get()) ) {
	271	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
[f1aeede]	272	} else {
[253d0b4]	273	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[f1aeede]	274	} // if
[f271bdd]	275	} // forCtrl
	276
[6d2b3dc]	277	ForCtrl * enumRangeCtrl( ExpressionNode * index_expr, OperKinds compop, ExpressionNode * range_over_expr, DeclarationNode * type ) {
	278	assert( compop == OperKinds::LEThan \|\| compop == OperKinds::GEThan );
[525f7ad]	279	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index_expr->expr.get()) ) {
[6d2b3dc]	280	DeclarationNode * indexDecl =
	281	DeclarationNode::newName( new std::string(identifier->name) )->addType( type );
[d3aa55e9]	282	return new ForCtrl( new StatementNode( indexDecl ), range_over_expr, compop );
[525f7ad]	283	} else {
[253d0b4]	284	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[525f7ad]	285	} // if
	286	} // enumRangeCtrl
	287
[996c8ed]	288	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[253d0b4]	289	SemanticError( yylloc, "illegal syntax, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
[b1f2007d]	290	"Possible cause is misspelled type name or missing generic parameter.",
	291	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	292	} // IdentifierBeforeIdentifier
	293
	294	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[253d0b4]	295	SemanticError( yylloc, "illegal syntax, identifier \"%s\" cannot appear before a %s.\n"
[b1f2007d]	296	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	297	identifier.c_str(), kind );
[996c8ed]	298	} // IdentifierBeforeType
	299
[24711a3]	300	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	301
[201aeb9]	302	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	303	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	304	if ( N ) { \
	305	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	306	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	307	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	308	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	309	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	310	} else { \
	311	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	312	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	313	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	314	}
[51b73452]	315	%}
	316
[15697ff]	317	%define parse.error verbose
	318
[201aeb9]	319	// Types declaration for productions
[7cf8006]	320
[0982a05]	321	%union {
[6cef439]	322	// A raw token can be used.
[a67b60e]	323	Token tok;
[6cef439]	324
	325	// The general node types hold some generic node or list of nodes.
[a67b60e]	326	DeclarationNode * decl;
[6cef439]	327	InitializerNode * init;
	328	ExpressionNode * expr;
[32d6fdc]	329	StatementNode * stmt;
[6611177]	330	ClauseNode * clause;
[6cef439]	331	TypeData * type;
	332
	333	// Special "nodes" containing compound information.
[569b118]	334	CondCtrl * ifctrl;
	335	ForCtrl * forctrl;
[32d6fdc]	336	LabelNode * labels;
[6cef439]	337
	338	// Various flags and single values that become fields later.
	339	ast::AggregateDecl::Aggregate aggKey;
	340	ast::TypeDecl::Kind tclass;
[32d6fdc]	341	OperKinds oper;
	342	bool is_volatile;
	343	EnumHiding enum_hiding;
	344	ast::ExceptionKind except_kind;
[6cef439]	345	// String passes ownership with it.
	346	std::string * str;
	347
	348	// Narrower node types are used to avoid constant unwrapping.
	349	ast::WaitForStmt * wfs;
	350	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	351	ast::GenericExpr * genexpr;
[a67b60e]	352	}
	353
[bb7422a]	354	// ********************** TERMINAL TOKENS ******************************
[51b73452]	355
[c11e31c]	356	// keywords
[51b73452]	357	%token TYPEDEF
[a7c90d4]	358	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	359	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	360	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	361	%token NORETURN // C11
[51b73452]	362	%token CONST VOLATILE
[b87a5ed]	363	%token RESTRICT // C99
[a7c90d4]	364	%token ATOMIC // C11
[1f652a7]	365	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	366	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	367	%token BOOL COMPLEX IMAGINARY // C99
[c5f69fd]	368	%token INT128 UINT128 FLOAT80 uuFLOAT128 // GCC
	369	%token FLOAT16 FLOAT32 FLOAT32X FLOAT64 FLOAT64X FLOAT128 FLOAT128X // GCC
	370	%token FLOAT32X4 FLOAT64X2 SVFLOAT32 SVFLOAT64 SVBOOL // GCC (ARM)
[15f769c]	371	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	372	%token ZERO_T ONE_T // CFA
[a8ced63]	373	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	374	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	375	%token ENUM STRUCT UNION
[c27fb59]	376	%token EXCEPTION // CFA
[553772b]	377	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	378	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	379	// %token RESUME // CFA
[1f652a7]	380	%token LABEL // GCC
[25744d2]	381	%token SUSPEND // CFA
[b87a5ed]	382	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	383	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	384	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	385	%token CORUN COFOR
[4744074]	386	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	387	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	388	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	389
[c11e31c]	390	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	391	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	392	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	393	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[1a8b17a]	394	%token<tok> DIRECTIVE C23_ATTRIBUTE
[1b29996]	395	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	396	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	397	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	398	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	399
[c11e31c]	400	// multi-character operators
[b87a5ed]	401	%token ARROW // ->
	402	%token ICR DECR // ++ --
	403	%token LS RS // << >>
	404	%token LE GE EQ NE // <= >= == !=
	405	%token ANDAND OROR // && \|\|
[647e2ea]	406	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	407
[e5f2a67]	408	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	409	%token PLUSassign MINUSassign // += -=
	410	%token LSassign RSassign // <<= >>=
	411	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	412
[01afd8d]	413	%token ErangeUp ErangeUpEq ErangeDown ErangeDownEq // +~ +~=/~= -~ -~=
[e7aed49]	414	%token ATassign // @=
[097e2b0]	415
[e16eb460]	416	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	417	%type<tok> quasi_keyword
[32d6fdc]	418	%type<expr> string_literal
[ab57786]	419	%type<str> string_literal_list
[51b73452]	420
[71a422a]	421	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	422
[c11e31c]	423	// expressions
[32d6fdc]	424	%type<expr> constant
[71a422a]	425	%type<expr> tuple tuple_expression_list
[32d6fdc]	426	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	427	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	428	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	429	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	430	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	431	%type<expr> logical_AND_expression logical_OR_expression
	432	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	433	%type<expr> comma_expression comma_expression_opt
	434	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[569b118]	435	%type<ifctrl> conditional_declaration
	436	%type<forctrl> for_control_expression for_control_expression_list
[32d6fdc]	437	%type<oper> upupeq updown updowneq downupdowneq
	438	%type<expr> subrange
[c0aa336]	439	%type<decl> asm_name_opt
[71a422a]	440	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	441	%type<labels> label_list
	442	%type<expr> asm_clobbers_list_opt
	443	%type<is_volatile> asm_volatile_opt
	444	%type<expr> handler_predicate_opt
[67d4e37]	445	%type<genexpr> generic_association generic_assoc_list
[51b73452]	446
[c11e31c]	447	// statements
[71a422a]	448	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	449	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	450	%type<stmt> selection_statement
[71a422a]	451	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	452	%type<expr> case_value
[71a422a]	453	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	454	%type<stmt> iteration_statement jump_statement
[71a422a]	455	%type<stmt> expression_statement asm_statement
[32d6fdc]	456	%type<stmt> with_statement
	457	%type<expr> with_clause_opt
[11ab0b4a]	458	%type<stmt> corun_statement cofor_statement
[32d6fdc]	459	%type<stmt> exception_statement
[6611177]	460	%type<clause> handler_clause finally_clause
[32d6fdc]	461	%type<except_kind> handler_key
	462	%type<stmt> mutex_statement
	463	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	464	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	465	%type<wfs> wor_waitfor_clause
[6e1e2d0]	466	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	467
[c11e31c]	468	// declarations
[c0aa336]	469	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	470	%type<decl> abstract_parameter_declarator_opt abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension
[c0aa336]	471	%type<decl> abstract_parameter_declaration
[51b73452]	472
[e307e12]	473	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	474	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	475
[9997fee]	476	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	477
[32d6fdc]	478	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	479
[84d58c5]	480	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	481	%type<type> basic_type_name_type
	482	%type<type> vtable vtable_opt default_opt
[51b73452]	483
[4040425]	484	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	485
	486	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	487	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	488
[d0ffed1]	489	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	490
[a8ced63]	491	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	492	%type<init> enumerator_value_opt
[51b73452]	493
[3d56d15b]	494	%type<decl> external_definition external_definition_list external_definition_list_opt
	495
	496	%type<decl> exception_declaration
[51b73452]	497
[12f1156]	498	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	499	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	500
[4d51835]	501	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	502
[d3bc0ad]	503	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	504	%type<decl> identifier_list
[51b73452]	505
[c0aa336]	506	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	507	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	508	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	509
[c0aa336]	510	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	511
[679e644]	512	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	513	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	514
[c0aa336]	515	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	516	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	517
[647e2ea]	518	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	519
[c0aa336]	520	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	521
[b9be000b]	522	%type<decl> c_declaration static_assert
[c0aa336]	523	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	524	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	525
[647e2ea]	526	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	527
[2871210]	528	%type<decl> paren_identifier paren_type
[51b73452]	529
[0da3e2c]	530	%type<decl> storage_class storage_class_list
[51b73452]	531
[d0ffed1]	532	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	533
[5a51798]	534	%type<tclass> type_class new_type_class
[51b73452]	535	%type<decl> type_declarator type_declarator_name type_declaring_list
	536
[6cef439]	537	%type<decl> type_declaration_specifier type_type_specifier
	538	%type<type> type_name typegen_name
[f9c3100]	539	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	540
[1f771fc]	541	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	542	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	543
	544	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	545
[84d58c5]	546	%type<decl> type type_no_function
	547	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	548
[647e2ea]	549	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	550
[6cef439]	551	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	552	%type<type> type_qualifier_name
[f9c3100]	553	%type<decl> type_specifier type_specifier_nobody
[51b73452]	554
[c0aa336]	555	%type<decl> variable_declarator variable_ptr variable_array variable_function
	556	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	557
[f9c3100]	558	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	559
[c11e31c]	560	// initializers
[32d6fdc]	561	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	562
[c11e31c]	563	// designators
[32d6fdc]	564	%type<expr> designator designator_list designation
[51b73452]	565
	566
[65d6de4]	567	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	568	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	569	// if ( C ) S1 else S2
	570	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	571	// Similar issues exit with the waitfor statement.
[51b73452]	572
[9fd9d015]	573	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	574	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	575	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	576	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	577	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	578	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	579	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	580	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	583	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	584	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	585	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	586	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	587
[51b73452]	588
[65d6de4]	589	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	590	// forall( otype T ) struct Foo { T v; };
	591	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	592	// Foo ( *fp )( int );
	593	// `---' matches start of TYPEGENname '('
[fc20514]	594	// must be:
[a16a7ec]	595	// Foo( int ) ( *fp )( int );
[fc20514]	596	// The same problem occurs here:
	597	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	598	// must be:
	599	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	600
	601	// Order of these lines matters (low-to-high precedence).
	602	%precedence TYPEGENname
[284da8c]	603	%precedence '}'
[65d6de4]	604	%precedence '('
	605
[c786e1d]	606	// %precedence RESUME
	607	// %precedence '{'
	608	// %precedence ')'
	609
[f38e7d7]	610	%locations // support location tracking for error messages
[930f69e]	611
[b87a5ed]	612	%start translation_unit // parse-tree root
[51b73452]	613
	614	%%
[e1d66c84]	615	// ********************** Namespace Management ******************************
[c11e31c]	616
[3d26610]	617	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	618	// which are lexically identical.
[c11e31c]	619	//
[3d26610]	620	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	621	// foo f; // to allow it to appear in this context
[c11e31c]	622	//
[3d26610]	623	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	624	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	625	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	626	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	627	// must be distinguished by the lexical scanner.
[c11e31c]	628	//
[3d26610]	629	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	630	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	631	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	632	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	633	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	634	// This requires distinguishing between type names that are local to the current declaration scope and those that
	635	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	636	//
[3d26610]	637	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	638	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	639	// around the list separator.
	640	//
[71a422a]	641	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	642	// push pop push pop
[51b73452]	643
	644	push:
[ab57786]	645	{ typedefTable.enterScope(); }
[4d51835]	646	;
[51b73452]	647
	648	pop:
[ab57786]	649	{ typedefTable.leaveScope(); }
[4d51835]	650	;
[51b73452]	651
[e1d66c84]	652	// ********************** CONSTANTS ******************************
[51b73452]	653
	654	constant:
[de62360d]	655	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	656	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	657	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	658	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	659	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	660	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	661	;
[51b73452]	662
[5b2edbc]	663	quasi_keyword: // CFA
	664	TIMEOUT
[9fd9d015]	665	\| WAND
[5b2edbc]	666	\| WOR
[9fb1367]	667	\| CATCH
	668	\| RECOVER
	669	\| CATCHRESUME
	670	\| FIXUP
	671	\| FINALLY
[5b2edbc]	672	;
	673
[033ff37]	674	identifier:
[4d51835]	675	IDENTIFIER
[5b2edbc]	676	\| quasi_keyword
[e16eb460]	677	;
	678
	679	identifier_at:
	680	identifier
[679e644]	681	\| '@' // CFA
	682	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	683	;
[51b73452]	684
[12f1156]	685	identifier_or_type_name:
	686	identifier
	687	\| TYPEDEFname
	688	\| TYPEGENname
	689	;
	690
[ab57786]	691	string_literal:
[32d6fdc]	692	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	693	;
	694
[b87a5ed]	695	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	696	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	697	\| string_literal_list STRINGliteral
	698	{
[15697ff]	699	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	700	delete $2; // allocated by lexer
[ab57786]	701	$$ = $1; // conversion from tok to str
[7bf7fb9]	702	}
[4d51835]	703	;
[51b73452]	704
[e1d66c84]	705	// ********************** EXPRESSIONS ******************************
[51b73452]	706
	707	primary_expression:
[4d51835]	708	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	709	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	710	\| quasi_keyword
[bb7422a]	711	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	712	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	713	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	714	\| tuple
[4d51835]	715	\| '(' comma_expression ')'
	716	{ $$ = $2; }
	717	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	718	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	719	\| type_name '.' identifier // CFA, nested type
[6cef439]	720	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	721	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	722	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	723	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	724	{
	725	// add the missing control expression to the GenericExpr and return it
[702e826]	726	$5->control = maybeMoveBuild( $3 );
[d807ca28]	727	$$ = new ExpressionNode( $5 );
	728	}
[c786e1d]	729	// \| RESUME '(' comma_expression ')'
	730	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	731	// \| RESUME '(' comma_expression ')' compound_statement
	732	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	733	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	734	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	735	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	736	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	737	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	738	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	739	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	740	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	741	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	742	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	743	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	744	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	745	;
	746
	747	generic_assoc_list: // C11
[d807ca28]	748	generic_association
[24c3b67]	749	\| generic_assoc_list ',' generic_association
[d807ca28]	750	{
	751	// steal the association node from the singleton and delete the wrapper
[bb7422a]	752	assert( 1 == $3->associations.size() );
	753	$1->associations.push_back( $3->associations.front() );
[d807ca28]	754	delete $3;
	755	$$ = $1;
	756	}
[24c3b67]	757	;
	758
	759	generic_association: // C11
	760	type_no_function ':' assignment_expression
[d807ca28]	761	{
	762	// create a GenericExpr wrapper with one association pair
[bb7422a]	763	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	764	}
[24c3b67]	765	\| DEFAULT ':' assignment_expression
[bb7422a]	766	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	767	;
[51b73452]	768
	769	postfix_expression:
[4d51835]	770	primary_expression
[1d71208]	771	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	772	// Historic, transitional: Disallow commas in subscripts.
	773	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	774	// Current: Commas in subscripts make tuples.
[b93c544]	775	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	776	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	777	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	778	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	779	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	780	// equivalent to the old x[i,j].
[bb7422a]	781	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	782	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	783	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	784	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	785	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	786	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	787	{
	788	Token fn;
	789	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	790	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	791	}
[cbbd8fd7]	792	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	793	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	794	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
[45ee172]	795	{ $$ = new ExpressionNode( build_va_arg( yylloc, $3, ( $6 ? $6->addType( $5 ) : $5 ) ) ); }
[948fdef]	796	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	797	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	798	\| constant '`' identifier // CFA, postfix call
[bb7422a]	799	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	800	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	801	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	802
	803	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	804	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	805	// them. For example:
	806	//
	807	// struct S;
	808	// forall(T) struct T;
	809	// union U;
	810	// enum E { S, T, E };
	811	// struct Z { int S, T, Z, E, U; };
	812	// void fred () {
	813	// Z z;
	814	// z.S; // lexer returns S is TYPEDEFname
	815	// z.T; // lexer returns T is TYPEGENname
	816	// z.Z; // lexer returns Z is TYPEDEFname
	817	// z.U; // lexer returns U is TYPEDEFname
	818	// z.E; // lexer returns E is TYPEDEFname
	819	// }
[12f1156]	820	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	821	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	822
[df22130]	823	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	824	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	825	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	826	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	827	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	828	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	829	\| postfix_expression '.' aggregate_control
[bb7422a]	830	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	831	\| postfix_expression ARROW identifier
[bb7422a]	832	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	833	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	834	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	835	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	836	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	837	\| postfix_expression ICR
[bb7422a]	838	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	839	\| postfix_expression DECR
[bb7422a]	840	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	841	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	842	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	843	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	844	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	845	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	846	{
[9706554]	847	Token fn;
[ecb27a7]	848	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	849	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	850	}
[4d51835]	851	;
[51b73452]	852
[679e644]	853	field_name_list: // CFA, tuple field selector
[4d51835]	854	field
[b93c544]	855	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	856	;
[b87a5ed]	857
	858	field: // CFA, tuple field selector
[faddbd8]	859	field_name
[930f69e]	860	\| FLOATING_DECIMALconstant field
[bb7422a]	861	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	862	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	863	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	864	\| field_name '.' field
[bb7422a]	865	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	866	\| field_name '.' '[' field_name_list ']'
[bb7422a]	867	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	868	\| field_name ARROW field
[bb7422a]	869	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	870	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	871	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	872	;
[51b73452]	873
[faddbd8]	874	field_name:
[df22130]	875	INTEGERconstant fraction_constants_opt
[bb7422a]	876	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	877	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	878	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	879	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	880	{
[bb7422a]	881	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	882	}
[1b29996]	883	;
	884
[df22130]	885	fraction_constants_opt:
[1b29996]	886	// empty
[8780e30]	887	{ $$ = nullptr; }
[df22130]	888	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	889	{
[bb7422a]	890	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	891	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	892	}
[faddbd8]	893	;
	894
[51b73452]	895	unary_expression:
[4d51835]	896	postfix_expression
[c6b1105]	897	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	898	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	899	\| constant
[ab57786]	900	\| string_literal
[32d6fdc]	901	{ $$ = $1; }
[4d51835]	902	\| EXTENSION cast_expression // GCC
[e04ef3a]	903	{ $$ = $2->set_extension( true ); }
[c6b1105]	904	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	905	// { * X; } // dereference X
	906	// { * int X; } // CFA declaration of pointer to int
[51e076e]	907	\| ptrref_operator cast_expression // CFA
[9706554]	908	{
	909	switch ( $1 ) {
[bb7422a]	910	case OperKinds::AddressOf:
	911	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	912	break;
[bb7422a]	913	case OperKinds::PointTo:
	914	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	915	break;
[bb7422a]	916	case OperKinds::And:
	917	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	918	break;
[bb7422a]	919	default:
[9706554]	920	assert( false );
	921	}
	922	}
[4d51835]	923	\| unary_operator cast_expression
[bb7422a]	924	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	925	\| ICR unary_expression
[bb7422a]	926	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	927	\| DECR unary_expression
[bb7422a]	928	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	929	\| SIZEOF unary_expression
[b6f2e7ab]	930	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[84d58c5]	931	\| SIZEOF '(' type_no_function ')'
[bb7422a]	932	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	933	\| ALIGNOF unary_expression // GCC, variable alignment
[b6f2e7ab]	934	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[a2e0687]	935	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	936	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	937
	938	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	939	// look ahead, so the cfa_abstract_function is factored out.
	940	\| SIZEOF '(' cfa_abstract_function ')'
	941	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	942	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	943	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	944
[033ff37]	945	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	946	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	947	\| TYPEID '(' type ')'
[1f652a7]	948	{
	949	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	950	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	951	}
[0c327ce]	952	\| COUNTOF unary_expression
[4941716]	953	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	954	\| COUNTOF '(' type_no_function ')'
	955	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	956	;
[51b73452]	957
[dd51906]	958	ptrref_operator:
[d9e2280]	959	'*' { $$ = OperKinds::PointTo; }
	960	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	961	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	962	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	963	;
	964
[51b73452]	965	unary_operator:
[d9e2280]	966	'+' { $$ = OperKinds::UnPlus; }
	967	\| '-' { $$ = OperKinds::UnMinus; }
	968	\| '!' { $$ = OperKinds::Neg; }
	969	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	970	;
[51b73452]	971
	972	cast_expression:
[4d51835]	973	unary_expression
[84d58c5]	974	\| '(' type_no_function ')' cast_expression
[bb7422a]	975	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	976	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	977	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	978	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	979	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	980	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	981	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	982	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	983	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	984	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	985	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	986	\| '(' COERCE type_no_function ')' cast_expression // CFA
	987	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	988	\| '(' qualifier_cast_list ')' cast_expression // CFA
	989	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	990	// \| '(' type_no_function ')' tuple
[bb7422a]	991	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	992	;
[51b73452]	993
[1528a2c]	994	qualifier_cast_list:
	995	cast_modifier type_qualifier_name
	996	\| cast_modifier MUTEX
	997	\| qualifier_cast_list cast_modifier type_qualifier_name
	998	\| qualifier_cast_list cast_modifier MUTEX
	999	;
	1000
	1001	cast_modifier:
	1002	'-'
	1003	\| '+'
	1004	;
	1005
[994d080]	1006	exponential_expression:
[4d51835]	1007	cast_expression
[994d080]	1008	\| exponential_expression '\\' cast_expression
[bb7422a]	1009	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1010	;
	1011
	1012	multiplicative_expression:
	1013	exponential_expression
	1014	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1015	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1016	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1017	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1018	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1019	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1020	;
[51b73452]	1021
	1022	additive_expression:
[4d51835]	1023	multiplicative_expression
	1024	\| additive_expression '+' multiplicative_expression
[bb7422a]	1025	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1026	\| additive_expression '-' multiplicative_expression
[bb7422a]	1027	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1028	;
[51b73452]	1029
	1030	shift_expression:
[4d51835]	1031	additive_expression
	1032	\| shift_expression LS additive_expression
[bb7422a]	1033	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1034	\| shift_expression RS additive_expression
[bb7422a]	1035	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1036	;
[51b73452]	1037
	1038	relational_expression:
[4d51835]	1039	shift_expression
	1040	\| relational_expression '<' shift_expression
[bb7422a]	1041	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1042	\| relational_expression '>' shift_expression
[bb7422a]	1043	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1044	\| relational_expression LE shift_expression
[bb7422a]	1045	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1046	\| relational_expression GE shift_expression
[bb7422a]	1047	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1048	;
[51b73452]	1049
	1050	equality_expression:
[4d51835]	1051	relational_expression
	1052	\| equality_expression EQ relational_expression
[bb7422a]	1053	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1054	\| equality_expression NE relational_expression
[bb7422a]	1055	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1056	;
[51b73452]	1057
	1058	AND_expression:
[4d51835]	1059	equality_expression
	1060	\| AND_expression '&' equality_expression
[bb7422a]	1061	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1062	;
[51b73452]	1063
	1064	exclusive_OR_expression:
[4d51835]	1065	AND_expression
	1066	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1067	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1068	;
[51b73452]	1069
	1070	inclusive_OR_expression:
[4d51835]	1071	exclusive_OR_expression
	1072	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1073	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1074	;
[51b73452]	1075
	1076	logical_AND_expression:
[4d51835]	1077	inclusive_OR_expression
	1078	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1079	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1080	;
[51b73452]	1081
	1082	logical_OR_expression:
[4d51835]	1083	logical_AND_expression
	1084	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1085	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1086	;
[51b73452]	1087
	1088	conditional_expression:
[4d51835]	1089	logical_OR_expression
	1090	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1091	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1092	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1093	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1094	;
[51b73452]	1095
	1096	constant_expression:
[4d51835]	1097	conditional_expression
	1098	;
[51b73452]	1099
[c1b0b8f]	1100	argument_expression_list_opt:
	1101	// empty
	1102	{ $$ = nullptr; }
	1103	\| argument_expression_list
	1104	;
	1105
	1106	argument_expression_list:
	1107	argument_expression
	1108	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1109	\| argument_expression_list ',' argument_expression // no empty argument
	1110	{ $$ = $1->set_last( $3 ); }
	1111	;
	1112
	1113	argument_expression:
	1114	'?' // CFA, default parameter
[daa4cc1]	1115	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1116	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1117	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1118	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1119	{ $$ = $4; }
[c1b0b8f]	1120	\| assignment_expression
	1121	;
	1122
[51b73452]	1123	assignment_expression:
[4d51835]	1124	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1125	conditional_expression
	1126	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1127	{
[25744d2]	1128	// if ( $2 == OperKinds::AtAssn ) {
	1129	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1130	// } else {
[bb7422a]	1131	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1132	// } // if
[9867cdb]	1133	}
[7fdb94e1]	1134	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1135	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1136	;
[51b73452]	1137
	1138	assignment_expression_opt:
[4d51835]	1139	// empty
[d1625f8]	1140	{ $$ = nullptr; }
[4d51835]	1141	\| assignment_expression
	1142	;
[b87a5ed]	1143
[9706554]	1144	assignment_operator:
[f9c3100]	1145	simple_assignment_operator
	1146	\| compound_assignment_operator
	1147	;
	1148
	1149	simple_assignment_operator:
[d9e2280]	1150	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1151	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1152	;
	1153
	1154	compound_assignment_operator:
	1155	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1156	\| MULTassign { $$ = OperKinds::MulAssn; }
	1157	\| DIVassign { $$ = OperKinds::DivAssn; }
	1158	\| MODassign { $$ = OperKinds::ModAssn; }
	1159	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1160	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1161	\| LSassign { $$ = OperKinds::LSAssn; }
	1162	\| RSassign { $$ = OperKinds::RSAssn; }
	1163	\| ANDassign { $$ = OperKinds::AndAssn; }
	1164	\| ERassign { $$ = OperKinds::ERAssn; }
	1165	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1166	;
[9706554]	1167
[b87a5ed]	1168	tuple: // CFA, tuple
[de62360d]	1169	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1170	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1a8b17a]	1171	'[' ',' ']'
	1172	{ $$ = new ExpressionNode( build_tuple( yylloc, nullptr ) ); }
	1173	\| '[' assignment_expression ',' ']'
	1174	{ $$ = new ExpressionNode( build_tuple( yylloc, $2 ) ); }
	1175	\| '[' '@' comma_opt ']'
	1176	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1177	\| '[' assignment_expression ',' tuple_expression_list comma_opt ']'
[917f67dd]	1178	{ $$ = new ExpressionNode( build_tuple( yylloc, $2->set_last( $4 ) ) ); }
[1a8b17a]	1179	\| '[' '@' ',' tuple_expression_list comma_opt ']'
	1180	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1181	;
[51b73452]	1182
	1183	tuple_expression_list:
[0a6d8204]	1184	assignment_expression
	1185	\| '@' // CFA
	1186	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1187	\| tuple_expression_list ',' assignment_expression
[b93c544]	1188	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1189	\| tuple_expression_list ',' '@'
	1190	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1191	;
[51b73452]	1192
	1193	comma_expression:
[4d51835]	1194	assignment_expression
[9706554]	1195	\| comma_expression ',' assignment_expression
[bb7422a]	1196	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1197	;
[51b73452]	1198
	1199	comma_expression_opt:
[4d51835]	1200	// empty
[58dd019]	1201	{ $$ = nullptr; }
[4d51835]	1202	\| comma_expression
	1203	;
[51b73452]	1204
[e1d66c84]	1205	// ************************ STATEMENTS *****************************
[51b73452]	1206
	1207	statement:
[4d51835]	1208	labeled_statement
	1209	\| compound_statement
[c0a33d2]	1210	\| expression_statement
[4d51835]	1211	\| selection_statement
	1212	\| iteration_statement
	1213	\| jump_statement
[8b47e50]	1214	\| with_statement
[b6b3c42]	1215	\| mutex_statement
[5b2edbc]	1216	\| waitfor_statement
[9fd9d015]	1217	\| waituntil_statement
[11ab0b4a]	1218	\| corun_statement
	1219	\| cofor_statement
[4d51835]	1220	\| exception_statement
[2a8427c6]	1221	\| enable_disable_statement
[fae90d5f]	1222	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1223	\| asm_statement
[61fc4f6]	1224	\| DIRECTIVE
[bb7422a]	1225	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1226	;
[51b73452]	1227
	1228	labeled_statement:
[033ff37]	1229	// labels cannot be identifiers 0 or 1
[44a81853]	1230	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1231	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1232	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1233	{
[b1f2007d]	1234	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1235	"where a declaration, case, or default is not a statement.\n"
	1236	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1237	$$ = nullptr;
	1238	}
[4d51835]	1239	;
[51b73452]	1240
	1241	compound_statement:
[4d51835]	1242	'{' '}'
[bb7422a]	1243	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1244	\| '{' push
[5e25953]	1245	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1246	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1247	pop '}'
[bb7422a]	1248	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1249	;
[b87a5ed]	1250
[9bd6105]	1251	statement_decl_list: // C99
	1252	statement_decl
[35718a9]	1253	\| statement_decl_list statement_decl
[6d01d89]	1254	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1255	;
[51b73452]	1256
[9bd6105]	1257	statement_decl:
[4d51835]	1258	declaration // CFA, new & old style declarations
[e82aa9df]	1259	{ $$ = new StatementNode( $1 ); }
[4d51835]	1260	\| EXTENSION declaration // GCC
[6d01d89]	1261	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1262	\| function_definition
[e82aa9df]	1263	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1264	\| EXTENSION function_definition // GCC
[6d01d89]	1265	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1266	\| statement
[4d51835]	1267	;
[51b73452]	1268
[9bd6105]	1269	statement_list_nodecl:
[4d51835]	1270	statement
[9bd6105]	1271	\| statement_list_nodecl statement
[6d01d89]	1272	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1273	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1274	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1275	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1276	;
[51b73452]	1277
	1278	expression_statement:
[4d51835]	1279	comma_expression_opt ';'
[bb7422a]	1280	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1281	;
[51b73452]	1282
[7e13b11]	1283	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1284	// parenthesis:
	1285	//
[446740a]	1286	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1287	//
[7e13b11]	1288	// switch O { }
	1289	//
	1290	// O{} => object-constructor for conditional, switch body ???
	1291	// O{} => O for conditional followed by switch body
	1292	//
	1293	// C++ has this problem, as it has the same constructor syntax.
	1294	//
	1295	// switch sizeof ( T ) { }
	1296	//
	1297	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1298	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1299	//
	1300	// Note the two grammar rules for sizeof (alignof)
	1301	//
	1302	// \| SIZEOF unary_expression
	1303	// \| SIZEOF '(' type_no_function ')'
	1304	//
	1305	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1306
[51b73452]	1307	selection_statement:
[647e2ea]	1308	IF '(' conditional_declaration ')' statement %prec THEN
	1309	// explicitly deal with the shift/reduce conflict on if/else
	1310	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1311	\| IF '(' conditional_declaration ')' statement ELSE statement
	1312	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1313	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1314	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1315	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1316	{
[bb7422a]	1317	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1318	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1319	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1320	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1321	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1322	// statement.
[b93c544]	1323	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1324	}
[0442f93f]	1325	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1326	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1327	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1328	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1329	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1330	{
[bb7422a]	1331	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1332	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1333	}
[0442f93f]	1334	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1335	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1336	;
[b87a5ed]	1337
[473d1da0]	1338	conditional_declaration:
[35718a9]	1339	comma_expression
[569b118]	1340	{ $$ = new CondCtrl( nullptr, $1 ); }
[35718a9]	1341	\| c_declaration // no semi-colon
[569b118]	1342	{ $$ = new CondCtrl( $1, nullptr ); }
[35718a9]	1343	\| cfa_declaration // no semi-colon
[569b118]	1344	{ $$ = new CondCtrl( $1, nullptr ); }
[6d49ea3]	1345	\| declaration comma_expression // semi-colon separated
[569b118]	1346	{ $$ = new CondCtrl( $1, $2 ); }
[9fd9d015]	1347	;
[936e9f4]	1348
[de62360d]	1349	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1350	// clause allows a list of values and subranges.
[b87a5ed]	1351
	1352	case_value: // CFA
[4d51835]	1353	constant_expression { $$ = $1; }
	1354	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1355	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1356	\| subrange // CFA, subrange
	1357	;
[b87a5ed]	1358
	1359	case_value_list: // CFA
[6611177]	1360	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1361	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1362	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1363	;
[b87a5ed]	1364
	1365	case_label: // CFA
[0442f93f]	1366	CASE error // invalid syntax rule
[253d0b4]	1367	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1368	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1369	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1370	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1371	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1372	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1373	\| DEFAULT error // invalid syntax rule
[253d0b4]	1374	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1375	;
[b87a5ed]	1376
	1377	case_label_list: // CFA
[4d51835]	1378	case_label
[6611177]	1379	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1380	;
[b87a5ed]	1381
	1382	case_clause: // CFA
[bb7422a]	1383	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1384	;
[b87a5ed]	1385
	1386	switch_clause_list_opt: // CFA
[4d51835]	1387	// empty
[58dd019]	1388	{ $$ = nullptr; }
[4d51835]	1389	\| switch_clause_list
	1390	;
[b87a5ed]	1391
	1392	switch_clause_list: // CFA
[9bd6105]	1393	case_label_list statement_list_nodecl
[bb7422a]	1394	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1395	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1396	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1397	;
[b87a5ed]	1398
[51b73452]	1399	iteration_statement:
[5695645]	1400	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[569b118]	1401	{ $$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1402	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1403	{
[569b118]	1404	$$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1405	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1406	}
[473d1da0]	1407	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1408	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1409	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1410	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1411	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1412	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1413	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1414	{
[bb7422a]	1415	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1416	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1417	}
	1418	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1419	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1420	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1421	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1422	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1423	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1424	\| FOR '(' ')' statement ELSE statement // CFA
	1425	{
[bb7422a]	1426	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1427	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1428	}
[efc8f3e]	1429	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1430	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1431	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1432	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1433	;
	1434
[6d01d89]	1435	for_control_expression_list:
	1436	for_control_expression
	1437	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1438	// ForCtrl + ForCtrl:
	1439	// init + init => multiple declaration statements that are hoisted
	1440	// condition + condition => (expression) && (expression)
	1441	// change + change => (expression), (expression)
	1442	{
	1443	$1->init->set_last( $3->init );
	1444	if ( $1->condition ) {
	1445	if ( $3->condition ) {
[bb7422a]	1446	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1447	} // if
	1448	} else $1->condition = $3->condition;
	1449	if ( $1->change ) {
	1450	if ( $3->change ) {
[bb7422a]	1451	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1452	} // if
	1453	} else $1->change = $3->change;
	1454	$$ = $1;
	1455	}
[6d01d89]	1456	;
	1457
[51b73452]	1458	for_control_expression:
[6d01d89]	1459	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1460	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1461	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1462	{
[253d0b4]	1463	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1464	}
[6d01d89]	1465	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1466	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1467
[aa122e9]	1468	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1469	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1470	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1471	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1472
[aa122e9]	1473	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1474	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1475	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1476	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1477
[aa122e9]	1478	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1479	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1480	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1481	{
[4fee301]	1482	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1483	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1484	}
[aa122e9]	1485	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1486	{
[4fee301]	1487	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1488	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1489	}
[aa122e9]	1490	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1491	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1492	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1493	{
[4fee301]	1494	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1495	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1496	}
[aa122e9]	1497	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1498	{
[4fee301]	1499	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1500	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1501	}
[65ef0cd]	1502	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1503	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1504	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1505	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1506	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1507	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1508	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1509	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1510	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1511	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1512
[089b39e1]	1513	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1514	// permissive allows for a better error message from forCtrl.
[f1aeede]	1515	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1516	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1517	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1518	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1519
[d78c238]	1520	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1521	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1522	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1523	{
[4fee301]	1524	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1525	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1526	}
[52be5948]	1527	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1528	{
[4fee301]	1529	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1530	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1531	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1532	}
[65ef0cd]	1533	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1534	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1535
	1536	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1537	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1538	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1539	{
[4fee301]	1540	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1541	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1542	}
[52be5948]	1543	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1544	{
[4fee301]	1545	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1546	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1547	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1548	}
	1549	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1550	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1551	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1552	{
[4fee301]	1553	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1554	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1555	}
[52be5948]	1556	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1557	{
[4fee301]	1558	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1559	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1560	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1561	}
[dbedd71]	1562	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1563	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1564
[569b118]	1565	// \| '@' identifier ';' comma_expression // CFA
[d78c238]	1566	\| declaration comma_expression // CFA
[bb7422a]	1567	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1568	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1569	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1570
[d78c238]	1571	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1572	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1573	\| declaration '@' updowneq comma_expression // CFA
	1574	{
[4fee301]	1575	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1576	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1577	}
[52be5948]	1578	\| declaration comma_expression updowneq '@' // CFA
	1579	{
[4fee301]	1580	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1581	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1582	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1583	}
[d78c238]	1584
	1585	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1586	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1587	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1588	{
[4fee301]	1589	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1590	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1591	}
[52be5948]	1592	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1593	{
[4fee301]	1594	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1595	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1596	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1597	}
	1598	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1599	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1600	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1601	{
[4fee301]	1602	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1603	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1604	}
[52be5948]	1605	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1606	{
[4fee301]	1607	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1608	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1609	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1610	}
[65ef0cd]	1611	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[01afd8d]	1612	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1613
[6d2b3dc]	1614	\| comma_expression ';' type_type_specifier // CFA, enum type
[ca33b15]	1615	{
[6d2b3dc]	1616	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->clone()->buildType() ) ), $3 );
[ca33b15]	1617	}
[a8ced63]	1618	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1619	{
[55ba259e]	1620	if ( $3 == OperKinds::GThan ) {
	1621	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1622	$3 = OperKinds::GEThan;
	1623	} // if
[6d2b3dc]	1624	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1625	}
[9fd9d015]	1626	;
[98337569]	1627
[a8ced63]	1628	enum_key:
	1629	type_name
[4941716]	1630	{
	1631	typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1632	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false );
	1633	}
[a8ced63]	1634	\| ENUM identifier
[4941716]	1635	{
	1636	typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1637	$$ = DeclarationNode::newEnum( $2, nullptr, false, false );
	1638	}
[a8ced63]	1639	\| ENUM type_name
[4941716]	1640	{
	1641	typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1642	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false );
	1643	}
[a8ced63]	1644	;
	1645
[55ba259e]	1646	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1647	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1648	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1649	downupdowneq:
[01afd8d]	1650	ErangeUp
	1651	{ $$ = OperKinds::LThan; }
	1652	\| ErangeDown
[d78c238]	1653	{ $$ = OperKinds::GThan; }
	1654	\| ErangeUpEq
	1655	{ $$ = OperKinds::LEThan; }
	1656	\| ErangeDownEq
	1657	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1658	;
[51b73452]	1659
[d78c238]	1660	updown:
[01afd8d]	1661	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1662	{ $$ = OperKinds::LThan; }
	1663	\| ErangeUp
[cc22003]	1664	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1665	\| ErangeDown
	1666	{ $$ = OperKinds::GThan; }
[9fd9d015]	1667	;
[d78c238]	1668
	1669	updowneq:
	1670	updown
	1671	\| ErangeUpEq
	1672	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1673	\| ErangeDownEq
	1674	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1675	;
[cc22003]	1676
[51b73452]	1677	jump_statement:
[44a81853]	1678	GOTO identifier_or_type_name ';'
[bb7422a]	1679	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1680	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1681	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1682	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1683	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1684	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1685	\| fall_through_name ';' // CFA
[bb7422a]	1686	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1687	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1688	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1689	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1690	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1691	\| CONTINUE ';'
[de62360d]	1692	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1693	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1694	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1695	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1696	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1697	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1698	\| BREAK ';'
[de62360d]	1699	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1700	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1701	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1702	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1703	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1704	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1705	\| RETURN comma_expression_opt ';'
[bb7422a]	1706	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1707	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1708	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1709	\| SUSPEND ';'
[bb7422a]	1710	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1711	\| SUSPEND compound_statement
[bb7422a]	1712	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1713	\| SUSPEND COROUTINE ';'
[bb7422a]	1714	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1715	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1716	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1717	\| SUSPEND GENERATOR ';'
[bb7422a]	1718	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1719	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1720	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1721	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1722	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1723	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1724	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1725	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1726	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1727	;
[51b73452]	1728
[6a276a0]	1729	fall_through_name: // CFA
	1730	FALLTHRU
	1731	\| FALLTHROUGH
	1732	;
	1733
[8b47e50]	1734	with_statement:
[e78966e]	1735	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1736	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1737	;
	1738
[bf20567]	1739	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1740	mutex_statement:
[bf20567]	1741	MUTEX '(' argument_expression_list_opt ')' statement
	1742	{
[253d0b4]	1743	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1744	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1745	}
[b6b3c42]	1746	;
	1747
[51d6d6a]	1748	when_clause:
[6a276a0]	1749	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1750	;
	1751
[5b2edbc]	1752	when_clause_opt:
	1753	// empty
[135b431]	1754	{ $$ = nullptr; }
[51d6d6a]	1755	\| when_clause
[5b2edbc]	1756	;
	1757
[4a063df]	1758	cast_expression_list:
	1759	cast_expression
	1760	\| cast_expression_list ',' cast_expression
[a491a3c]	1761	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1762	;
	1763
	1764	timeout:
[9fd9d015]	1765	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1766	;
	1767
[9fd9d015]	1768	wor:
	1769	OROR
	1770	\| WOR
	1771
	1772	waitfor:
	1773	WAITFOR '(' cast_expression ')'
	1774	{ $$ = $3; }
	1775	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1776	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1777	;
	1778
[9fd9d015]	1779	wor_waitfor_clause:
[51d6d6a]	1780	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1781	// Called first: create header for WaitForStmt.
[bb7422a]	1782	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1783	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1784	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1785	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1786	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1787	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1788	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1789	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1790	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1791	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1792	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1793	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1794	;
	1795
	1796	waitfor_statement:
[9fd9d015]	1797	wor_waitfor_clause %prec THEN
	1798	{ $$ = new StatementNode( $1 ); }
	1799	;
	1800
	1801	wand:
	1802	ANDAND
	1803	\| WAND
	1804	;
	1805
	1806	waituntil:
[04c78215]	1807	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1808	{ $$ = $3; }
	1809	;
	1810
	1811	waituntil_clause:
	1812	when_clause_opt waituntil statement
[c86b08d]	1813	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1814	\| '(' wor_waituntil_clause ')'
[c86b08d]	1815	{ $$ = $2; }
[9fd9d015]	1816	;
	1817
	1818	wand_waituntil_clause:
	1819	waituntil_clause %prec THEN
[c86b08d]	1820	{ $$ = $1; }
[9fd9d015]	1821	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1822	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1823	;
	1824
	1825	wor_waituntil_clause:
	1826	wand_waituntil_clause
[c86b08d]	1827	{ $$ = $1; }
[70056ed]	1828	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1829	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1830	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1831	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1832	;
	1833
	1834	waituntil_statement:
	1835	wor_waituntil_clause %prec THEN
[f259682]	1836	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1837	;
	1838
[11ab0b4a]	1839	corun_statement:
	1840	CORUN statement
[eb779d5]	1841	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1842	;
	1843
	1844	cofor_statement:
	1845	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1846	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1847	;
	1848
[51b73452]	1849	exception_statement:
[bb7422a]	1850	TRY compound_statement handler_clause %prec THEN
	1851	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1852	\| TRY compound_statement finally_clause
[bb7422a]	1853	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1854	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1855	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1856	;
[51b73452]	1857
	1858	handler_clause:
[206ecae]	1859	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1860	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1861	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1862	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1863	;
	1864
	1865	handler_predicate_opt:
[7fdb94e1]	1866	// empty
[cbce272]	1867	{ $$ = nullptr; }
[6a276a0]	1868	\| ';' conditional_expression { $$ = $2; }
[307a732]	1869	;
	1870
	1871	handler_key:
[bb7422a]	1872	CATCH { $$ = ast::Terminate; }
	1873	\| RECOVER { $$ = ast::Terminate; }
	1874	\| CATCHRESUME { $$ = ast::Resume; }
	1875	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1876	;
[51b73452]	1877
	1878	finally_clause:
[6611177]	1879	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1880	;
[51b73452]	1881
	1882	exception_declaration:
[d0ffed1]	1883	// No SUE declaration in parameter list.
	1884	type_specifier_nobody
	1885	\| type_specifier_nobody declarator
[c0a33d2]	1886	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1887	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1888	{ $$ = $2->addType( $1 ); }
[033ff37]	1889	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1890	{ $$ = $1->addName( $2 ); }
[c0aa336]	1891	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1892	;
[51b73452]	1893
[2a8427c6]	1894	enable_disable_statement:
	1895	enable_disable_key identifier_list compound_statement
	1896	;
	1897
	1898	enable_disable_key:
	1899	ENABLE
	1900	\| DISABLE
	1901	;
	1902
[51b73452]	1903	asm_statement:
[ab57786]	1904	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1905	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1906	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1907	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1908	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1909	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1910	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1911	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1912	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1913	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1914	;
	1915
	1916	asm_volatile_opt: // GCC
	1917	// empty
	1918	{ $$ = false; }
	1919	\| VOLATILE
	1920	{ $$ = true; }
[4d51835]	1921	;
[b87a5ed]	1922
	1923	asm_operands_opt: // GCC
[4d51835]	1924	// empty
[58dd019]	1925	{ $$ = nullptr; } // use default argument
[4d51835]	1926	\| asm_operands_list
	1927	;
[b87a5ed]	1928
	1929	asm_operands_list: // GCC
[4d51835]	1930	asm_operand
	1931	\| asm_operands_list ',' asm_operand
[b93c544]	1932	{ $$ = $1->set_last( $3 ); }
[4d51835]	1933	;
[b87a5ed]	1934
	1935	asm_operand: // GCC
[ab57786]	1936	string_literal '(' constant_expression ')'
[32d6fdc]	1937	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1938	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1939	{
[32d6fdc]	1940	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1941	delete $2.str;
	1942	}
[7f5566b]	1943	;
	1944
[4e06c1e]	1945	asm_clobbers_list_opt: // GCC
[7f5566b]	1946	// empty
[58dd019]	1947	{ $$ = nullptr; } // use default argument
[ab57786]	1948	\| string_literal
[32d6fdc]	1949	{ $$ = $1; }
[ab57786]	1950	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1951	{ $$ = $1->set_last( $3 ); }
[4d51835]	1952	;
[b87a5ed]	1953
[7f5566b]	1954	label_list:
[033ff37]	1955	identifier
[ab57786]	1956	{
[bb7422a]	1957	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1958	delete $1; // allocated by lexer
	1959	}
[033ff37]	1960	\| label_list ',' identifier
[ab57786]	1961	{
[bb7422a]	1962	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1963	delete $3; // allocated by lexer
	1964	}
[4d51835]	1965	;
[51b73452]	1966
[e1d66c84]	1967	// **************************** DECLARATIONS *******************************
[51b73452]	1968
[b87a5ed]	1969	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1970	// empty
[58dd019]	1971	{ $$ = nullptr; }
[4d51835]	1972	\| declaration_list
	1973	;
[51b73452]	1974
	1975	declaration_list:
[4d51835]	1976	declaration
[647e2ea]	1977	\| declaration_list declaration
	1978	{ $$ = $1->set_last( $2 ); }
[4d51835]	1979	;
[51b73452]	1980
[407bde5]	1981	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1982	// empty
[58dd019]	1983	{ $$ = nullptr; }
[35718a9]	1984	\| KR_parameter_list
[4d51835]	1985	;
[51b73452]	1986
[35718a9]	1987	KR_parameter_list:
[c25f16b]	1988	c_declaration ';'
	1989	{ $$ = $1; }
	1990	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1991	{ $$ = $1->set_last( $2 ); }
[4d51835]	1992	;
[b87a5ed]	1993
[51b1202]	1994	local_label_declaration_opt: // GCC, local label
[4d51835]	1995	// empty
[51b1202]	1996	\| local_label_declaration_list
[4d51835]	1997	;
[b87a5ed]	1998
[51b1202]	1999	local_label_declaration_list: // GCC, local label
	2000	LABEL local_label_list ';'
	2001	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	2002	;
[b87a5ed]	2003
[51b1202]	2004	local_label_list: // GCC, local label
[033ff37]	2005	identifier_or_type_name
	2006	\| local_label_list ',' identifier_or_type_name
[4d51835]	2007	;
[b87a5ed]	2008
[936e9f4]	2009	declaration: // old & new style declarations
[35718a9]	2010	c_declaration ';'
	2011	\| cfa_declaration ';' // CFA
[b9f6791f]	2012	\| static_assert ';' // C11
[4d51835]	2013	;
[b87a5ed]	2014
[b9be000b]	2015	static_assert:
[b9f6791f]	2016	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2017	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2018	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2019	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2020
[de62360d]	2021	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2022	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2023	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2024	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2025	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2026	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2027	//
[b87a5ed]	2028	// CFA C
	2029	// [10] int x; int x[10]; // array of 10 integers
	2030	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2031
[c0aa336]	2032	cfa_declaration: // CFA
[4cc585b]	2033	cfa_variable_declaration
	2034	\| cfa_typedef_declaration
	2035	\| cfa_function_declaration
	2036	\| type_declaring_list
[2501ae5]	2037	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2038	\| trait_specifier
[4d51835]	2039	;
[b87a5ed]	2040
[c0aa336]	2041	cfa_variable_declaration: // CFA
	2042	cfa_variable_specifier initializer_opt
[7fdb94e1]	2043	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2044	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2045	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2046	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2047	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2048	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2049	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2050	;
[b87a5ed]	2051
[c0aa336]	2052	cfa_variable_specifier: // CFA
[de62360d]	2053	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2054	// storage-class
[c0aa336]	2055	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2056	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2057	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2058	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2059	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2060	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2061
	2062	// [ int s, int t ]; // declare s and t
	2063	// [ int, int ] f();
	2064	// [] g( int );
	2065	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2066	// g( x + y );
	2067	\| cfa_function_return asm_name_opt
	2068	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2069	\| type_qualifier_list cfa_function_return asm_name_opt
	2070	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2071	;
[b87a5ed]	2072
[c0aa336]	2073	cfa_function_declaration: // CFA
	2074	cfa_function_specifier
	2075	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2076	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2077	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2078	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2079	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2080	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2081	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2082	{
[481115f]	2083	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2084	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2085	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2086	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2087	}
	2088	;
[b87a5ed]	2089
[c0aa336]	2090	cfa_function_specifier: // CFA
[647e2ea]	2091	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2092	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2093	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2094	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2095	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2096	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2097
[2871210]	2098	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2099	//
[647e2ea]	2100	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2101	// '[' ']' type_specifier
	2102	//
[2871210]	2103	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2104	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2105	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2106	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2107	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2108	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2109	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2110	;
[b87a5ed]	2111
[c0aa336]	2112	cfa_function_return: // CFA
[917f67dd]	2113	'[' cfa_parameter_list ']'
	2114	{ $$ = DeclarationNode::newTuple( $2 ); }
	2115	\| '[' cfa_parameter_list ',' cfa_abstract_parameter_list ']'
[b048dc3]	2116	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[917f67dd]	2117	{ $$ = DeclarationNode::newTuple( $2->set_last( $4 ) ); }
[4d51835]	2118	;
[b87a5ed]	2119
[c0aa336]	2120	cfa_typedef_declaration: // CFA
	2121	TYPEDEF cfa_variable_specifier
[4d51835]	2122	{
[71a422a]	2123	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2124	$$ = $2->addTypedef();
	2125	}
[c0aa336]	2126	\| TYPEDEF cfa_function_specifier
[4d51835]	2127	{
[71a422a]	2128	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2129	$$ = $2->addTypedef();
	2130	}
[647e2ea]	2131	\| cfa_typedef_declaration ',' identifier
[4d51835]	2132	{
[647e2ea]	2133	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2134	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2135	}
	2136	;
[b87a5ed]	2137
[de62360d]	2138	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2139	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2140
	2141	typedef_declaration:
[4d51835]	2142	TYPEDEF type_specifier declarator
	2143	{
[71a422a]	2144	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2145	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2146	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2147	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2148	}
[c25f16b]	2149	\| typedef_declaration ',' declarator
[4d51835]	2150	{
[c25f16b]	2151	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2152	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2153	}
[de62360d]	2154	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2155	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2156	\| type_specifier TYPEDEF declarator
[ac235a8]	2157	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2158	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2159	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2160	;
[b87a5ed]	2161
[721f17a]	2162	typedef_expression:
[25744d2]	2163	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2164	TYPEDEF identifier '=' assignment_expression
[4d51835]	2165	{
[ac235a8]	2166	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2167	}
[c25f16b]	2168	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2169	{
[ac235a8]	2170	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2171	}
	2172	;
[51b73452]	2173
[c0aa336]	2174	c_declaration:
[4cc585b]	2175	declaration_specifier declaring_list
[7fdb94e1]	2176	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2177	\| typedef_declaration
[25744d2]	2178	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2179	\| sue_declaration_specifier
[0bcd707]	2180	{
	2181	assert( $1->type );
[1a73dbb]	2182	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2183	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2184	}
	2185	// enums are never empty declarations because there must have at least one enumeration.
	2186	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2187	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2188	}
	2189	}
[4d51835]	2190	;
[51b73452]	2191
	2192	declaring_list:
[de62360d]	2193	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2194	// storage-class
[1f771fc]	2195	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2196	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2197	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2198	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2199
	2200	\| general_function_declarator asm_name_opt
	2201	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2202	\| general_function_declarator asm_name_opt '=' VOID
	2203	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2204
[4d51835]	2205	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2206	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2207	;
[b87a5ed]	2208
[1f771fc]	2209	general_function_declarator:
	2210	function_type_redeclarator
	2211	\| function_declarator
	2212	;
	2213
[b87a5ed]	2214	declaration_specifier: // type specifier + storage class
[4d51835]	2215	basic_declaration_specifier
[84d58c5]	2216	\| type_declaration_specifier
[79a6b17]	2217	\| sue_declaration_specifier
[0442f93f]	2218	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2219	{
[253d0b4]	2220	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2221	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2222	$$ = nullptr;
	2223	}
	2224	;
	2225
	2226	invalid_types:
	2227	aggregate_key
	2228	\| basic_type_name
	2229	\| indirect_type
[4d51835]	2230	;
[b87a5ed]	2231
[d0ffed1]	2232	declaration_specifier_nobody: // type specifier + storage class - {...}
	2233	// Preclude SUE declarations in restricted scopes:
	2234	//
	2235	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2236	//
	2237	// because it is impossible to call f due to name equivalence.
	2238	basic_declaration_specifier
	2239	\| sue_declaration_specifier_nobody
[84d58c5]	2240	\| type_declaration_specifier
[d0ffed1]	2241	;
	2242
	2243	type_specifier: // type specifier
[4d51835]	2244	basic_type_specifier
	2245	\| sue_type_specifier
[84d58c5]	2246	\| type_type_specifier
[4d51835]	2247	;
[b87a5ed]	2248
[d0ffed1]	2249	type_specifier_nobody: // type specifier - {...}
	2250	// Preclude SUE declarations in restricted scopes:
	2251	//
	2252	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2253	//
	2254	// because it is impossible to call f due to name equivalence.
	2255	basic_type_specifier
	2256	\| sue_type_specifier_nobody
[84d58c5]	2257	\| type_type_specifier
[d0ffed1]	2258	;
	2259
[b87a5ed]	2260	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2261	// empty
[58dd019]	2262	{ $$ = nullptr; }
[4d51835]	2263	\| type_qualifier_list
	2264	;
[51b73452]	2265
	2266	type_qualifier_list:
[de62360d]	2267	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2268	//
[de62360d]	2269	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2270	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2271	// appeared only once.
[4d51835]	2272	type_qualifier
	2273	\| type_qualifier_list type_qualifier
	2274	{ $$ = $1->addQualifiers( $2 ); }
	2275	;
[51b73452]	2276
	2277	type_qualifier:
[4d51835]	2278	type_qualifier_name
[6cef439]	2279	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2280	\| attribute // trick handles most attribute locations
[4d51835]	2281	;
[51b73452]	2282
	2283	type_qualifier_name:
[4d51835]	2284	CONST
[6cef439]	2285	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2286	\| RESTRICT
[6cef439]	2287	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2288	\| VOLATILE
[6cef439]	2289	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2290	\| ATOMIC
[6cef439]	2291	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2292
[446740a]	2293	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2294	//
	2295	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2296	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2297	\| forall
[6cef439]	2298	{ $$ = build_forall( $1 ); }
[a16a7ec]	2299	;
	2300
	2301	forall:
[35718a9]	2302	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2303	{ $$ = $3; }
[4d51835]	2304	;
[51b73452]	2305
	2306	declaration_qualifier_list:
[4d51835]	2307	storage_class_list
[de62360d]	2308	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2309	{ $$ = $1->addQualifiers( $2 ); }
	2310	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2311	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2312	;
[51b73452]	2313
	2314	storage_class_list:
[de62360d]	2315	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2316	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2317	//
[de62360d]	2318	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2319	// specifiers in a declaration.
[4d51835]	2320	storage_class
	2321	\| storage_class_list storage_class
	2322	{ $$ = $1->addQualifiers( $2 ); }
	2323	;
[51b73452]	2324
	2325	storage_class:
[4d51835]	2326	EXTERN
[36e6f10]	2327	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2328	\| STATIC
[36e6f10]	2329	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2330	\| AUTO
[36e6f10]	2331	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2332	\| REGISTER
[36e6f10]	2333	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2334	\| THREADLOCALGCC // GCC
[36e6f10]	2335	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2336	\| THREADLOCALC11 // C11
[36e6f10]	2337	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2338	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2339	\| INLINE // C99
[36e6f10]	2340	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2341	\| FORTRAN // C99
[36e6f10]	2342	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2343	\| NORETURN // C11
[36e6f10]	2344	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2345	;
[51b73452]	2346
	2347	basic_type_name:
[6cef439]	2348	basic_type_name_type
	2349	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2350	;
	2351
	2352	// Just an intermediate value for conversion.
	2353	basic_type_name_type:
[201aeb9]	2354	VOID
[e048ece]	2355	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2356	\| BOOL // C99
[e048ece]	2357	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2358	\| CHAR
[e048ece]	2359	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2360	\| INT
[e048ece]	2361	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2362	\| INT128
[e048ece]	2363	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2364	\| UINT128
[e048ece]	2365	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2366	\| FLOAT
[e048ece]	2367	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2368	\| DOUBLE
[e048ece]	2369	{ $$ = build_basic_type( TypeData::Double ); }
[c5f69fd]	2370	\| FLOAT80
	2371	{ $$ = build_basic_type( TypeData::Float80 ); }
[e15853c]	2372	\| uuFLOAT128
[e048ece]	2373	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[c5f69fd]	2374	\| FLOAT16
	2375	{ $$ = build_basic_type( TypeData::Float16 ); }
	2376	\| FLOAT32
	2377	{ $$ = build_basic_type( TypeData::Float32 ); }
	2378	\| FLOAT32X
	2379	{ $$ = build_basic_type( TypeData::Float32x ); }
	2380	\| FLOAT64
	2381	{ $$ = build_basic_type( TypeData::Float64 ); }
	2382	\| FLOAT64X
	2383	{ $$ = build_basic_type( TypeData::Float64x ); }
	2384	\| FLOAT128
	2385	{ $$ = build_basic_type( TypeData::Float128 ); }
[569b118]	2386	// https://developer.arm.com/documentation/den0018/a/NEON-Intrinsics/Accessing-vector-types-from-C
[c5f69fd]	2387	\| FLOAT128X
	2388	{ $$ = build_basic_type( TypeData::Float128x ); }
	2389	\| FLOAT32X4
	2390	{ $$ = build_basic_type( TypeData::Float32x4 ); }
	2391	\| FLOAT64X2
	2392	{ $$ = build_basic_type( TypeData::Float64x2 ); }
	2393	\| SVFLOAT32
	2394	{ $$ = build_basic_type( TypeData::Svfloat32 ); }
	2395	\| SVFLOAT64
	2396	{ $$ = build_basic_type( TypeData::Svfloat64 ); }
	2397	\| SVBOOL
	2398	{ $$ = build_basic_type( TypeData::Svbool ); }
[15f769c]	2399	\| DECIMAL32
	2400	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2401	\| DECIMAL64
	2402	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2403	\| DECIMAL128
	2404	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2405	\| COMPLEX // C99
[e048ece]	2406	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2407	\| IMAGINARY // C99
[e048ece]	2408	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2409	\| SIGNED
[e048ece]	2410	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2411	\| UNSIGNED
[e048ece]	2412	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2413	\| SHORT
[e048ece]	2414	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2415	\| LONG
[e048ece]	2416	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2417	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2418	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2419	\| AUTO_TYPE
[e048ece]	2420	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2421	\| vtable
	2422	;
	2423
	2424	vtable_opt:
	2425	// empty
	2426	{ $$ = nullptr; }
[9380add]	2427	\| vtable
[1f652a7]	2428	;
	2429
	2430	vtable:
[8f6f3729]	2431	VTABLE '(' type_name ')' default_opt
[6cef439]	2432	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2433	;
	2434
	2435	default_opt:
	2436	// empty
	2437	{ $$ = nullptr; }
	2438	\| DEFAULT
	2439	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2440	;
[51b73452]	2441
	2442	basic_declaration_specifier:
[4d51835]	2443	// A semantic check is necessary for conflicting storage classes.
	2444	basic_type_specifier
	2445	\| declaration_qualifier_list basic_type_specifier
	2446	{ $$ = $2->addQualifiers( $1 ); }
	2447	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2448	{ $$ = $1->addQualifiers( $2 ); }
	2449	\| basic_declaration_specifier storage_class type_qualifier_list
	2450	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2451	\| basic_declaration_specifier storage_class basic_type_specifier
	2452	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2453	;
[51b73452]	2454
	2455	basic_type_specifier:
[84d58c5]	2456	direct_type
[f38e7d7]	2457	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2458	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2459	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2460	;
[51b73452]	2461
[84d58c5]	2462	direct_type:
[4d51835]	2463	basic_type_name
	2464	\| type_qualifier_list basic_type_name
	2465	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2466	\| direct_type type_qualifier
[4d51835]	2467	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2468	\| direct_type basic_type_name
[4d51835]	2469	{ $$ = $1->addType( $2 ); }
	2470	;
[51b73452]	2471
[84d58c5]	2472	indirect_type:
[b6ad601]	2473	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2474	{ $$ = $3; }
[b6ad601]	2475	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2476	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2477	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2478	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2479	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2480	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2481	\| ZERO_T // CFA
[e048ece]	2482	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2483	\| ONE_T // CFA
[e048ece]	2484	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2485	;
[51b73452]	2486
[d0ffed1]	2487	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2488	sue_type_specifier
	2489	\| declaration_qualifier_list sue_type_specifier
	2490	{ $$ = $2->addQualifiers( $1 ); }
	2491	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2492	{ $$ = $1->addQualifiers( $2 ); }
	2493	\| sue_declaration_specifier storage_class type_qualifier_list
	2494	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2495	;
[51b73452]	2496
[d0ffed1]	2497	sue_type_specifier: // struct, union, enum + type specifier
	2498	elaborated_type
[fdca7c6]	2499	\| type_qualifier_list
	2500	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2501	elaborated_type
	2502	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2503	\| sue_type_specifier type_qualifier
[284da8c]	2504	{
	2505	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2506	$$ = $1->addQualifiers( $2 );
	2507	}
[4d51835]	2508	;
[51b73452]	2509
[d0ffed1]	2510	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2511	sue_type_specifier_nobody
	2512	\| declaration_qualifier_list sue_type_specifier_nobody
	2513	{ $$ = $2->addQualifiers( $1 ); }
	2514	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2515	{ $$ = $1->addQualifiers( $2 ); }
	2516	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2517	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2518	;
	2519
	2520	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2521	elaborated_type_nobody
	2522	\| type_qualifier_list elaborated_type_nobody
	2523	{ $$ = $2->addQualifiers( $1 ); }
	2524	\| sue_type_specifier_nobody type_qualifier
	2525	{ $$ = $1->addQualifiers( $2 ); }
	2526	;
	2527
[84d58c5]	2528	type_declaration_specifier:
	2529	type_type_specifier
	2530	\| declaration_qualifier_list type_type_specifier
[4d51835]	2531	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2532	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2533	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2534	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2535	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2536	;
[b87a5ed]	2537
[84d58c5]	2538	type_type_specifier: // typedef types
	2539	type_name
[6cef439]	2540	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2541	\| type_qualifier_list type_name
[6cef439]	2542	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2543	\| type_type_specifier type_qualifier
	2544	{ $$ = $1->addQualifiers( $2 ); }
	2545	;
	2546
	2547	type_name:
[4d51835]	2548	TYPEDEFname
[6cef439]	2549	{ $$ = build_typedef( $1 ); }
[84d58c5]	2550	\| '.' TYPEDEFname
[6cef439]	2551	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2552	\| type_name '.' TYPEDEFname
[6cef439]	2553	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2554	\| typegen_name
	2555	\| '.' typegen_name
[6cef439]	2556	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2557	\| type_name '.' typegen_name
[6cef439]	2558	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2559	;
	2560
	2561	typegen_name: // CFA
[65d6de4]	2562	TYPEGENname
[6cef439]	2563	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2564	\| TYPEGENname '(' ')'
[6cef439]	2565	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2566	\| TYPEGENname '(' type_list ')'
[6cef439]	2567	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2568	;
[51b73452]	2569
[d0ffed1]	2570	elaborated_type: // struct, union, enum
[c0aa336]	2571	aggregate_type
	2572	\| enum_type
[4d51835]	2573	;
[51b73452]	2574
[d0ffed1]	2575	elaborated_type_nobody: // struct, union, enum - {...}
	2576	aggregate_type_nobody
	2577	\| enum_type_nobody
	2578	;
	2579
[7e13b11]	2580	// ************************ AGGREGATE *****************************
	2581
[d0ffed1]	2582	aggregate_type: // struct, union
[fc20514]	2583	aggregate_key attribute_list_opt
	2584	{ forall = false; } // reset
	2585	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2586	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2587	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2588	{
[71a422a]	2589	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2590	forall = false; // reset
	2591	}
[284da8c]	2592	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2593	{
	2594	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2595	}
[f9c3100]	2596	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2597	{
[71a422a]	2598	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2599	forall = false; // reset
	2600	}
[284da8c]	2601	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2602	{
[6cef439]	2603	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2604	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2605	}
	2606	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2607	{
[71a422a]	2608	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2609	forall = false; // reset
	2610	}
	2611	'{' field_declaration_list_opt '}' type_parameters_opt
	2612	{
[6cef439]	2613	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2614	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2615	}
[d0ffed1]	2616	\| aggregate_type_nobody
	2617	;
	2618
[284da8c]	2619	type_parameters_opt:
	2620	// empty
	2621	{ $$ = nullptr; } %prec '}'
	2622	\| '(' type_list ')'
	2623	{ $$ = $2; }
	2624	;
	2625
[d0ffed1]	2626	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2627	aggregate_key attribute_list_opt identifier
[84d58c5]	2628	{
[71a422a]	2629	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2630	forall = false; // reset
[84d58c5]	2631	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2632	}
[73f04fd]	2633	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2634	{
[fc20514]	2635	forall = false; // reset
[65d6de4]	2636	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2637	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2638	// delete newFromTypeGen.
[6cef439]	2639	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2640	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2641	} else {
[6cef439]	2642	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2643	$3->symbolic.name = nullptr; // copied to $$
	2644	$3->symbolic.actuals = nullptr;
[9fa61f5]	2645	delete $3;
	2646	}
[65d6de4]	2647	}
[4d51835]	2648	;
[51b73452]	2649
	2650	aggregate_key:
[e307e12]	2651	aggregate_data
	2652	\| aggregate_control
	2653	;
	2654
	2655	aggregate_data:
[1f652a7]	2656	STRUCT vtable_opt
[bb7422a]	2657	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2658	\| UNION
[bb7422a]	2659	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2660	\| EXCEPTION // CFA
[bb7422a]	2661	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2662	;
	2663
	2664	aggregate_control: // CFA
[cbbd8fd7]	2665	MONITOR
[bb7422a]	2666	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2667	\| MUTEX STRUCT
[bb7422a]	2668	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2669	\| GENERATOR
[bb7422a]	2670	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2671	\| MUTEX GENERATOR
[bb7422a]	2672	{
	2673	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2674	$$ = ast::AggregateDecl::NoAggregate;
	2675	}
[d3bc0ad]	2676	\| COROUTINE
[bb7422a]	2677	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2678	\| MUTEX COROUTINE
[bb7422a]	2679	{
	2680	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2681	$$ = ast::AggregateDecl::NoAggregate;
	2682	}
[d3bc0ad]	2683	\| THREAD
[bb7422a]	2684	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2685	\| MUTEX THREAD
[bb7422a]	2686	{
	2687	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2688	$$ = ast::AggregateDecl::NoAggregate;
	2689	}
[4d51835]	2690	;
[51b73452]	2691
[7fdb94e1]	2692	field_declaration_list_opt:
[5d125e4]	2693	// empty
[58dd019]	2694	{ $$ = nullptr; }
[7fdb94e1]	2695	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2696	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2697	;
[51b73452]	2698
	2699	field_declaration:
[679e644]	2700	type_specifier field_declaring_list_opt ';'
[d8454b9]	2701	{
	2702	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2703	$$ = fieldDecl( $1, $2 );
	2704	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2705	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2706	// printf( "\tattr %s\n", attr->name.c_str() );
	2707	// } // for
	2708	}
[0442f93f]	2709	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2710	{
[253d0b4]	2711	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2712	$$ = nullptr;
	2713	}
[679e644]	2714	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2715	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2716	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2717	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2718	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2719	{
[dea36ee]	2720	if ( ! $3 ) { // field declarator ?
	2721	$3 = DeclarationNode::newName( nullptr );
	2722	} // if
[679a260]	2723	$3->inLine = true;
[679e644]	2724	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2725	distInl( $3 );
[8f91c9ae]	2726	}
[e307e12]	2727	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2728	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2729	\| typedef_declaration ';' // CFA
	2730	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2731	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2732	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2733	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2734	{ $$ = $2; } // mark all fields in list
[46fa473]	2735	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2736	\| static_assert ';' // C11
[4d51835]	2737	;
[b87a5ed]	2738
[679e644]	2739	field_declaring_list_opt:
	2740	// empty
	2741	{ $$ = nullptr; }
[12f1156]	2742	\| field_declarator
	2743	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2744	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2745	;
[51b73452]	2746
[679e644]	2747	field_declarator:
[e07caa2]	2748	bit_subrange_size // C special case, no field name
[4d51835]	2749	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2750	\| variable_declarator bit_subrange_size_opt
[679e644]	2751	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2752	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2753	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2754	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2755	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2756	\| function_type_redeclarator bit_subrange_size_opt
	2757	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2758	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2759	;
	2760
[e07caa2]	2761	field_abstract_list_opt:
	2762	// empty
[dea36ee]	2763	{ $$ = nullptr; }
[e07caa2]	2764	\| field_abstract
	2765	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2766	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2767	;
	2768
[e07caa2]	2769	field_abstract:
[f7e4db27]	2770	// no bit fields
[e07caa2]	2771	variable_abstract_declarator
[679e644]	2772	;
	2773
	2774	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2775	// bit-fields are handled by C declarations
[033ff37]	2776	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2777	{ $$ = $1->addName( $2 ); }
[033ff37]	2778	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2779	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2780	;
	2781
	2782	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2783	// bit-fields are handled by C declarations
[679e644]	2784	cfa_abstract_declarator_tuple
	2785	\| cfa_field_abstract_list ','
[dc3fbe5]	2786	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2787	;
[51b73452]	2788
	2789	bit_subrange_size_opt:
[4d51835]	2790	// empty
[58dd019]	2791	{ $$ = nullptr; }
[4d51835]	2792	\| bit_subrange_size
	2793	;
[51b73452]	2794
	2795	bit_subrange_size:
[c786e1d]	2796	':' assignment_expression
[4d51835]	2797	{ $$ = $2; }
	2798	;
[51b73452]	2799
[7e13b11]	2800	// ************************ ENUMERATION *****************************
[647e2ea]	2801
[9e7236f4]	2802	enum_type:
[30aab55]	2803	// anonymous, no type name
	2804	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2805	{
	2806	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2807	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2808	} // if
	2809	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2810	}
[42422fb]	2811	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2812	{
[42422fb]	2813	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2814	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2815	}
[42422fb]	2816	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2817	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2818	} // if
	2819	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2820	}
[30aab55]	2821
[42422fb]	2822	// named type
[30aab55]	2823	\| ENUM attribute_list_opt identifier
	2824	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2825	hide_opt '{' enumerator_list comma_opt '}'
	2826	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2827	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2828	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2829	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2830	{
[42422fb]	2831	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2832	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2833	}
[42422fb]	2834	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2835	}
[c7f12a4]	2836	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2837	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2838	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2839	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2840
	2841	// forward declaration
[d0ffed1]	2842	\| enum_type_nobody
	2843	;
	2844
[42422fb]	2845	enumerator_type:
	2846	'(' ')' // pure enumeration
	2847	{ $$ = nullptr; }
	2848	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2849	{ $$ = $2; }
	2850	;
	2851
[c7f12a4]	2852	hide_opt:
	2853	// empty
[7cf8006]	2854	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2855	\| '!'
[7cf8006]	2856	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2857	;
	2858
[d0ffed1]	2859	enum_type_nobody: // enum - {...}
[f9c3100]	2860	ENUM attribute_list_opt identifier
[71a422a]	2861	{
	2862	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2863	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2864	}
[0bd46fd]	2865	\| ENUM attribute_list_opt type_name
[71a422a]	2866	{
[6cef439]	2867	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2868	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2869	}
[4d51835]	2870	;
[51b73452]	2871
	2872	enumerator_list:
[2ca7fc2]	2873	// empty
	2874	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2875	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2876	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2877	\| INLINE type_name
[d9bad51]	2878	{
	2879	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2880	$2->symbolic.name = nullptr;
	2881	delete $2;
	2882	}
[7cf8006]	2883	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2884	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2885	\| enumerator_list ',' INLINE type_name
	2886	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2887	;
[51b73452]	2888
[7cf8006]	2889	visible_hide_opt:
[c7f12a4]	2890	hide_opt
	2891	\| '^'
[7cf8006]	2892	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2893	;
	2894
[51b73452]	2895	enumerator_value_opt:
[4d51835]	2896	// empty
[58dd019]	2897	{ $$ = nullptr; }
[7991c7d]	2898	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2899	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2900	// \| simple_assignment_operator initializer
	2901	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2902	;
[51b73452]	2903
[7e13b11]	2904	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2905
	2906	parameter_list_ellipsis_opt:
	2907	// empty
[db19e1d]	2908	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[647e2ea]	2909	\| ELLIPSIS
	2910	{ $$ = nullptr; }
	2911	\| parameter_list
	2912	\| parameter_list ',' ELLIPSIS
	2913	{ $$ = $1->addVarArgs(); }
	2914	;
	2915
	2916	parameter_list: // abstract + real
	2917	parameter_declaration
	2918	\| abstract_parameter_declaration
	2919	\| parameter_list ',' parameter_declaration
	2920	{ $$ = $1->set_last( $3 ); }
	2921	\| parameter_list ',' abstract_parameter_declaration
	2922	{ $$ = $1->set_last( $3 ); }
	2923	;
	2924
	2925	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2926	// empty
[e048ece]	2927	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2928	\| ELLIPSIS
[58dd019]	2929	{ $$ = nullptr; }
[c0aa336]	2930	\| cfa_parameter_list
[647e2ea]	2931	\| cfa_abstract_parameter_list
	2932	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2933	{ $$ = $1->set_last( $3 ); }
	2934	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2935	{ $$ = $1->addVarArgs(); }
[647e2ea]	2936	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2937	{ $$ = $1->addVarArgs(); }
	2938	;
[b87a5ed]	2939
[c0aa336]	2940	cfa_parameter_list: // CFA
	2941	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2942	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2943	cfa_parameter_declaration
[647e2ea]	2944	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2945	{ $$ = $1->set_last( $3 ); }
	2946	\| cfa_parameter_list ',' cfa_parameter_declaration
	2947	{ $$ = $1->set_last( $3 ); }
	2948	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2949	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2950	;
[b87a5ed]	2951
[c0aa336]	2952	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2953	cfa_abstract_parameter_declaration
[647e2ea]	2954	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2955	{ $$ = $1->set_last( $3 ); }
[4d51835]	2956	;
[51b73452]	2957
[de62360d]	2958	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2959	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2960
[647e2ea]	2961	parameter_declaration:
	2962	// No SUE declaration in parameter list.
	2963	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2964	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2965	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2966	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2967	;
	2968
	2969	abstract_parameter_declaration:
	2970	declaration_specifier_nobody default_initializer_opt
	2971	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2972	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2973	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2974	;
	2975
[c0aa336]	2976	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2977	parameter_declaration
[5a51798]	2978	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2979	{ $$ = $1->addName( $2 ); }
[5a51798]	2980	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2981	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2982	{ $$ = $1->addName( $2 ); }
[5a51798]	2983	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2984	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2985	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2986	;
[b87a5ed]	2987
[c0aa336]	2988	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2989	abstract_parameter_declaration
[c0aa336]	2990	\| cfa_identifier_parameter_declarator_no_tuple
	2991	\| cfa_abstract_tuple
	2992	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2993	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2994	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2995	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2996	;
[51b73452]	2997
[c11e31c]	2998	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2999	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	3000	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	3001
[b87a5ed]	3002	identifier_list: // K&R-style parameter list => no types
[033ff37]	3003	identifier
[4d51835]	3004	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	3005	\| identifier_list ',' identifier
[dc3fbe5]	3006	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	3007	;
[51b73452]	3008
[84d58c5]	3009	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	3010	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	3011	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	3012	\| type_specifier abstract_declarator
[4d51835]	3013	{ $$ = $2->addType( $1 ); }
	3014	;
[b87a5ed]	3015
[84d58c5]	3016	type: // typeof, assertion
	3017	type_no_function
[c0aa336]	3018	\| cfa_abstract_function // CFA
[4d51835]	3019	;
[51b73452]	3020
	3021	initializer_opt:
[4d51835]	3022	// empty
[58dd019]	3023	{ $$ = nullptr; }
[f9c3100]	3024	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3025	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3026	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3027	;
[51b73452]	3028
	3029	initializer:
[de62360d]	3030	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3031	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3032	;
[51b73452]	3033
[7fdb94e1]	3034	initializer_list_opt:
[097e2b0]	3035	// empty
[58dd019]	3036	{ $$ = nullptr; }
[097e2b0]	3037	\| initializer
[4d51835]	3038	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3039	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3040	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3041	;
[b87a5ed]	3042
[de62360d]	3043	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3044	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3045	//
[b87a5ed]	3046	// int x[10] = { [1] = 3 };
[c11e31c]	3047	//
[de62360d]	3048	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3049	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3050	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3051	// shift/reduce conflicts
[51b73452]	3052
	3053	designation:
[1a8b17a]	3054	designator_list '=' // C99, CFA uses ":" instead of "="
	3055	\| identifier_at ':' // GCC, field name, obsolete since GCC 2.5
[bb7422a]	3056	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3057	;
[51b73452]	3058
[b87a5ed]	3059	designator_list: // C99
[4d51835]	3060	designator
[2871210]	3061	\| designator_list designator
[b93c544]	3062	{ $$ = $1->set_last( $2 ); }
[4d51835]	3063	;
[51b73452]	3064
	3065	designator:
[e16eb460]	3066	'.' identifier_at // C99, field name
[bb7422a]	3067	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[1a8b17a]	3068	\| '[' constant_expression ']' // C99, single array element
[917f67dd]	3069	{ $$ = $2; }
	3070	\| '[' subrange ']' // CFA, multiple array elements
	3071	{ $$ = $2; }
	3072	\| '[' constant_expression ELLIPSIS constant_expression ']' // GCC, multiple array elements
	3073	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $2 ), maybeMoveBuild( $4 ) ) ); }
	3074	\| '.' '[' field_name_list ']' // CFA, tuple field selector
[d1625f8]	3075	{ $$ = $3; }
[4d51835]	3076	;
[51b73452]	3077
[de62360d]	3078	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3079	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3080	//
	3081	// Overloading: function, data, and operator identifiers may be overloaded.
	3082	//
[3ca7ef3]	3083	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3084	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3085	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3086	//
[de62360d]	3087	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3088	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3089	//
	3090	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3091	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3092	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3093	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3094	// on type arguments of polymorphic functions.
[c11e31c]	3095
[b87a5ed]	3096	type_parameter_list: // CFA
[67cf18c]	3097	type_parameter
	3098	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3099	{ $$ = $1->set_last( $3 ); }
[4d51835]	3100	;
[b87a5ed]	3101
[84d58c5]	3102	type_initializer_opt: // CFA
	3103	// empty
	3104	{ $$ = nullptr; }
	3105	\| '=' type
	3106	{ $$ = $2; }
	3107	;
	3108
[b87a5ed]	3109	type_parameter: // CFA
[033ff37]	3110	type_class identifier_or_type_name
[408ab79]	3111	{
[71a422a]	3112	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3113	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3114	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3115	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3116	}
[5a51798]	3117	type_initializer_opt assertion_list_opt
[67cf18c]	3118	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3119	\| identifier_or_type_name new_type_class
[71a422a]	3120	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3121	type_initializer_opt assertion_list_opt
	3122	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3123	\| '[' identifier_or_type_name ']'
[b66d14a]	3124	{
[71a422a]	3125	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3126	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3127	}
[5a51798]	3128	// \| type_specifier identifier_parameter_declarator
[9997fee]	3129	\| assertion_list
[bb7422a]	3130	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3131	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3132	{
	3133	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3134	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3135	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3136	}
[4d51835]	3137	;
[b87a5ed]	3138
[5a51798]	3139	new_type_class: // CFA
	3140	// empty
[bb7422a]	3141	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3142	\| '&'
[bb7422a]	3143	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3144	\| '*'
[7e13b11]	3145	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3146	// \| '(' '*' ')' // Gregor made me do it
	3147	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3148	\| ELLIPSIS
[bb7422a]	3149	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3150	;
	3151
[b87a5ed]	3152	type_class: // CFA
[4040425]	3153	OTYPE
[bb7422a]	3154	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3155	\| DTYPE
[bb7422a]	3156	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3157	\| FTYPE
[bb7422a]	3158	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3159	\| TTYPE
[bb7422a]	3160	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3161	;
[b87a5ed]	3162
	3163	assertion_list_opt: // CFA
[4d51835]	3164	// empty
[58dd019]	3165	{ $$ = nullptr; }
[9997fee]	3166	\| assertion_list
	3167	;
	3168
	3169	assertion_list: // CFA
	3170	assertion
	3171	\| assertion_list assertion
[dc3fbe5]	3172	{ $$ = $1->set_last( $2 ); }
[4d51835]	3173	;
[b87a5ed]	3174
	3175	assertion: // CFA
[033ff37]	3176	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3177	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3178	\| '\|' '{' trait_declaration_list '}'
	3179	{ $$ = $3; }
[35718a9]	3180	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3181	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3182	;
[b87a5ed]	3183
[84d58c5]	3184	type_list: // CFA
	3185	type
[bb7422a]	3186	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3187	\| assignment_expression
[84d58c5]	3188	\| type_list ',' type
[b93c544]	3189	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3190	\| type_list ',' assignment_expression
[b93c544]	3191	{ $$ = $1->set_last( $3 ); }
[4d51835]	3192	;
[b87a5ed]	3193
	3194	type_declaring_list: // CFA
[4040425]	3195	OTYPE type_declarator
[4d51835]	3196	{ $$ = $2; }
[4040425]	3197	\| storage_class_list OTYPE type_declarator
[4d51835]	3198	{ $$ = $3->addQualifiers( $1 ); }
	3199	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3200	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3201	;
[b87a5ed]	3202
	3203	type_declarator: // CFA
[4d51835]	3204	type_declarator_name assertion_list_opt
	3205	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3206	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3207	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3208	;
[b87a5ed]	3209
	3210	type_declarator_name: // CFA
[033ff37]	3211	identifier_or_type_name
[4d51835]	3212	{
[71a422a]	3213	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3214	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3215	}
[033ff37]	3216	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3217	{
[71a422a]	3218	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3219	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3220	}
	3221	;
[b87a5ed]	3222
[4040425]	3223	trait_specifier: // CFA
[033ff37]	3224	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3225	{
[3d937e2]	3226	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3227	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3228	}
	3229	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3230	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3231	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3232	{
[3d937e2]	3233	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3234	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3235	}
[206ecae]	3236	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3237	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3238	;
[b87a5ed]	3239
[84d58c5]	3240	trait_declaration_list: // CFA
[4040425]	3241	trait_declaration
[206ecae]	3242	\| trait_declaration_list trait_declaration
	3243	{ $$ = $1->set_last( $2 ); }
[4d51835]	3244	;
[b87a5ed]	3245
[84d58c5]	3246	trait_declaration: // CFA
[13e8427]	3247	cfa_trait_declaring_list ';'
	3248	\| trait_declaring_list ';'
[4d51835]	3249	;
[b87a5ed]	3250
[c0aa336]	3251	cfa_trait_declaring_list: // CFA
	3252	cfa_variable_specifier
	3253	\| cfa_function_specifier
[206ecae]	3254	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3255	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3256	;
[b87a5ed]	3257
[4040425]	3258	trait_declaring_list: // CFA
[4941716]	3259	// Cannot declare an aggregate or enumeration in a trait.
	3260	type_specifier_nobody declarator
[7fdb94e1]	3261	{ $$ = $2->addType( $1 ); }
[206ecae]	3262	\| trait_declaring_list ',' declarator
	3263	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4941716]	3264	\| error
	3265	{ SemanticError( yylloc, "Possible cause is declaring an aggregate or enumeration type in a trait." ); $$ = nullptr; }
[4d51835]	3266	;
[51b73452]	3267
[e1d66c84]	3268	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3269
	3270	translation_unit:
[3d56d15b]	3271	// empty, input file
[4d51835]	3272	\| external_definition_list
[12f1156]	3273	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3274	;
[51b73452]	3275
	3276	external_definition_list:
[35718a9]	3277	push external_definition pop
	3278	{ $$ = $2; }
[fc20514]	3279	\| external_definition_list push external_definition pop
[dc3fbe5]	3280	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3281	;
[51b73452]	3282
	3283	external_definition_list_opt:
[4d51835]	3284	// empty
[58dd019]	3285	{ $$ = nullptr; }
[3d56d15b]	3286	\| external_definition_list
	3287	;
	3288
	3289	up:
[fc20514]	3290	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3291	;
	3292
	3293	down:
	3294	{ typedefTable.down(); }
[4d51835]	3295	;
[51b73452]	3296
	3297	external_definition:
[2d019af]	3298	DIRECTIVE
[bb7422a]	3299	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3300	\| declaration
[1a73dbb]	3301	{
	3302	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3303	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3304	// disallowed at the moment.
[4eb3a7c5]	3305	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3306	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3307	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3308	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3309	}
	3310	}
	3311	}
[996c8ed]	3312	\| IDENTIFIER IDENTIFIER
	3313	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3314	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3315	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3316	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3317	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3318	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3319	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3320	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3321	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3322	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3323	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3324	\| external_function_definition
[ecae5860]	3325	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3326	{
	3327	distExt( $2 ); // mark all fields in list
	3328	$$ = $2;
	3329	}
[e994912]	3330	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3331	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3332	\| EXTERN STRINGliteral
	3333	{
	3334	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3335	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3336	}
[ae2f2ae]	3337	up external_definition down
[aac37fa]	3338	{
	3339	linkage = linkageStack.top();
	3340	linkageStack.pop();
	3341	$$ = $5;
	3342	}
[c0aa336]	3343	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3344	{
[3b8e52c]	3345	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3346	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3347	}
[3d56d15b]	3348	'{' up external_definition_list_opt down '}'
[4d51835]	3349	{
	3350	linkage = linkageStack.top();
	3351	linkageStack.pop();
[3d56d15b]	3352	$$ = $6;
[8e9cbb2]	3353	}
[7e13b11]	3354	// global distribution
[9997fee]	3355	\| type_qualifier_list
	3356	{
[55266c7]	3357	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3358	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3359	}
[fc20514]	3360	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3361	}
	3362	'{' up external_definition_list_opt down '}' // CFA, namespace
	3363	{
[4c3ee8d]	3364	distQual( $5, $1 );
[9fd9d015]	3365	forall = false;
[3d56d15b]	3366	$$ = $5;
[9997fee]	3367	}
	3368	\| declaration_qualifier_list
	3369	{
[55266c7]	3370	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3371	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3372	}
[fc20514]	3373	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3374	}
	3375	'{' up external_definition_list_opt down '}' // CFA, namespace
	3376	{
[4c3ee8d]	3377	distQual( $5, $1 );
[9fd9d015]	3378	forall = false;
[3d56d15b]	3379	$$ = $5;
[9997fee]	3380	}
	3381	\| declaration_qualifier_list type_qualifier_list
	3382	{
[55266c7]	3383	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3384	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3385	}
[b2ddaf3]	3386	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3387	}
[3d56d15b]	3388	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3389	{
[284da8c]	3390	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3391	forall = false;
[3d56d15b]	3392	$$ = $6;
[9997fee]	3393	}
[b9f6791f]	3394	\| ';' // empty declaration
	3395	{ $$ = nullptr; }
[4d51835]	3396	;
	3397
	3398	external_function_definition:
	3399	function_definition
[de62360d]	3400	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3401	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3402	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3403	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3404	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3405	\| function_declarator compound_statement
[c0a33d2]	3406	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3407	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3408	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3409	;
[51b73452]	3410
[8b47e50]	3411	with_clause_opt:
	3412	// empty
[9997fee]	3413	{ $$ = nullptr; forall = false; }
[e78966e]	3414	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3415	{
	3416	$$ = $3; forall = false;
	3417	if ( $5 ) {
[253d0b4]	3418	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3419	$$ = nullptr;
	3420	} // if
	3421	}
[8b47e50]	3422	;
	3423
[51b73452]	3424	function_definition:
[8b47e50]	3425	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3426	{
[481115f]	3427	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3428	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3429	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3430	$$ = $1;
[4d51835]	3431	}
[8b47e50]	3432	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3433	{
[c38ae92]	3434	rebindForall( $1, $2 );
[7fdb94e1]	3435	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3436	}
[1f771fc]	3437	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3438	{
	3439	rebindForall( $1, $2 );
[5fcba14]	3440	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3441	}
[a16a7ec]	3442	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3443	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3444	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3445	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3446	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3447	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3448	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3449	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3450	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3451
	3452	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3453	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3454	{
[c38ae92]	3455	rebindForall( $1, $2 );
[5fcba14]	3456	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3457	}
[a16a7ec]	3458	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3459	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3460	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3461	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3462	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3463	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3464	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3465	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3466	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3467	;
[51b73452]	3468
	3469	declarator:
[4d51835]	3470	variable_declarator
[c6b1105]	3471	\| variable_type_redeclarator
[4d51835]	3472	\| function_declarator
[1f771fc]	3473	\| function_type_redeclarator
[4d51835]	3474	;
[51b73452]	3475
	3476	subrange:
[4d51835]	3477	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3478	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3479	;
[b87a5ed]	3480
[7e13b11]	3481	// ************************** ASM ***************************
	3482
[b87a5ed]	3483	asm_name_opt: // GCC
[4d51835]	3484	// empty
[58dd019]	3485	{ $$ = nullptr; }
	3486	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3487	{
	3488	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3489	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3490	$$ = name->addQualifiers( $5 );
	3491	}
[4d51835]	3492	;
[b87a5ed]	3493
[7e13b11]	3494	// ************************** ATTRIBUTE ***************************
	3495
[b87a5ed]	3496	attribute_list_opt: // GCC
[4d51835]	3497	// empty
[58dd019]	3498	{ $$ = nullptr; }
[4d51835]	3499	\| attribute_list
	3500	;
[b87a5ed]	3501
	3502	attribute_list: // GCC
[4d51835]	3503	attribute
	3504	\| attribute_list attribute
[1db21619]	3505	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3506	;
[b87a5ed]	3507
	3508	attribute: // GCC
[44a81853]	3509	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3510	{ $$ = $4; }
[647e2ea]	3511	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3512	{ $$ = $3; }
	3513	\| ATTR '(' attribute_name_list ')' // CFA
	3514	{ $$ = $3; }
[1a8b17a]	3515	\| C23_ATTRIBUTE
	3516	{ $$ = DeclarationNode::newAttribute( $1 ); }
[4d51835]	3517	;
[b87a5ed]	3518
[44a81853]	3519	attribute_name_list: // GCC
	3520	attribute_name
	3521	\| attribute_name_list ',' attribute_name
[c0aa336]	3522	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3523	;
[b87a5ed]	3524
[44a81853]	3525	attribute_name: // GCC
[4d51835]	3526	// empty
[44a81853]	3527	{ $$ = nullptr; }
	3528	\| attr_name
	3529	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3530	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3531	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3532	;
[b87a5ed]	3533
[44a81853]	3534	attr_name: // GCC
[12f1156]	3535	identifier_or_type_name
[114014c]	3536	\| FALLTHROUGH
	3537	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3538	\| CONST
[9ff56e7]	3539	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3540	;
[51b73452]	3541
[c11e31c]	3542	// ============================================================================
[de62360d]	3543	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3544	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3545	// in:
[c11e31c]	3546	//
[b87a5ed]	3547	// int (*f())[10] { ... };
	3548	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3549	//
[de62360d]	3550	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3551	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3552	// ============================================================================
	3553
	3554	// ----------------------------------------------------------------------------
[de62360d]	3555	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3556	// to define a variable or function prototype, e.g.:
[c11e31c]	3557	//
[b87a5ed]	3558	// valid declaration invalid definition
	3559	// ----------------- ------------------
[4d51835]	3560	// int f; int f {}
	3561	// int f; int f {}
[b87a5ed]	3562	// int f[10]; int f[10] {}
[4d51835]	3563	// int (f)(int); int (f)(int) {}
[c11e31c]	3564	//
[de62360d]	3565	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3566	// variable_declarator and function_declarator.
[c11e31c]	3567	// ----------------------------------------------------------------------------
	3568
[de62360d]	3569	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3570	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3571
[5e25953]	3572	paren_identifier:
[e16eb460]	3573	identifier_at
[5e25953]	3574	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3575	\| '?' identifier
[daa4cc1]	3576	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3577	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3578	\| '(' paren_identifier ')' // redundant parenthesis
	3579	{ $$ = $2; }
	3580	;
	3581
[51b73452]	3582	variable_declarator:
[4d51835]	3583	paren_identifier attribute_list_opt
[1db21619]	3584	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3585	\| variable_ptr
	3586	\| variable_array attribute_list_opt
[1db21619]	3587	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3588	\| variable_function attribute_list_opt
[1db21619]	3589	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3590	;
[51b73452]	3591
	3592	variable_ptr:
[dd51906]	3593	ptrref_operator variable_declarator
[a5f9444]	3594	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3595	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3596	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3597	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3598	{ $$ = $2->addQualifiers( $4 ); }
	3599	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3600	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3601	;
[51b73452]	3602
	3603	variable_array:
[4d51835]	3604	paren_identifier array_dimension
	3605	{ $$ = $1->addArray( $2 ); }
	3606	\| '(' variable_ptr ')' array_dimension
	3607	{ $$ = $2->addArray( $4 ); }
[5e25953]	3608	\| '(' attribute_list variable_ptr ')' array_dimension
	3609	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3610	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3611	{ $$ = $2->addArray( $4 ); }
[5e25953]	3612	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3613	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3614	\| '(' variable_array ')' // redundant parenthesis
	3615	{ $$ = $2; }
[5e25953]	3616	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3617	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3618	;
[51b73452]	3619
	3620	variable_function:
[647e2ea]	3621	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3622	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3623	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3624	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3625	\| '(' variable_function ')' // redundant parenthesis
	3626	{ $$ = $2; }
[5e25953]	3627	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3628	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3629	;
[51b73452]	3630
[c6b1105]	3631	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3632	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3633	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3634
	3635	function_declarator:
[4d51835]	3636	function_no_ptr attribute_list_opt
[1db21619]	3637	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3638	\| function_ptr
	3639	\| function_array attribute_list_opt
[1db21619]	3640	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3641	;
[51b73452]	3642
	3643	function_no_ptr:
[647e2ea]	3644	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3645	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3646	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3647	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3648	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3649	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3650	\| '(' function_no_ptr ')' // redundant parenthesis
	3651	{ $$ = $2; }
[5e25953]	3652	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3653	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3654	;
[51b73452]	3655
	3656	function_ptr:
[dd51906]	3657	ptrref_operator function_declarator
[a5f9444]	3658	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3659	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3660	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3661	\| '(' function_ptr ')' attribute_list_opt
	3662	{ $$ = $2->addQualifiers( $4 ); }
	3663	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3664	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3665	;
[51b73452]	3666
	3667	function_array:
[4d51835]	3668	'(' function_ptr ')' array_dimension
	3669	{ $$ = $2->addArray( $4 ); }
[5e25953]	3670	\| '(' attribute_list function_ptr ')' array_dimension
	3671	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3672	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3673	{ $$ = $2->addArray( $4 ); }
[5e25953]	3674	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3675	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3676	\| '(' function_array ')' // redundant parenthesis
	3677	{ $$ = $2; }
[5e25953]	3678	\| '(' attribute_list function_array ')' // redundant parenthesis
	3679	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3680	;
[51b73452]	3681
[c0aa336]	3682	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3683	//
	3684	// f( a, b, c ) int a, *b, c[]; {}
	3685	//
	3686	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3687	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3688
[c0aa336]	3689	KR_function_declarator:
	3690	KR_function_no_ptr
	3691	\| KR_function_ptr
	3692	\| KR_function_array
[4d51835]	3693	;
[51b73452]	3694
[c0aa336]	3695	KR_function_no_ptr:
[4d51835]	3696	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3697	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3698	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3699	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3700	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3701	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3702	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3703	{ $$ = $2; }
[5e25953]	3704	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3705	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3706	;
[51b73452]	3707
[c0aa336]	3708	KR_function_ptr:
	3709	ptrref_operator KR_function_declarator
[a5f9444]	3710	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3711	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3712	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3713	\| '(' KR_function_ptr ')'
[4d51835]	3714	{ $$ = $2; }
[5e25953]	3715	\| '(' attribute_list KR_function_ptr ')'
	3716	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3717	;
[51b73452]	3718
[c0aa336]	3719	KR_function_array:
	3720	'(' KR_function_ptr ')' array_dimension
[4d51835]	3721	{ $$ = $2->addArray( $4 ); }
[5e25953]	3722	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3723	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3724	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3725	{ $$ = $2->addArray( $4 ); }
[5e25953]	3726	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3727	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3728	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3729	{ $$ = $2; }
[5e25953]	3730	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3731	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3732	;
[51b73452]	3733
[1f771fc]	3734	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3735	//
[b87a5ed]	3736	// typedef int foo;
	3737	// {
	3738	// int foo; // redefine typedef name in new scope
	3739	// }
[51b73452]	3740
[2871210]	3741	paren_type:
[f9c3100]	3742	typedef_name
[c4f68dc]	3743	{
[f9c3100]	3744	// hide type name in enclosing scope by variable name
[71a422a]	3745	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3746	}
[2871210]	3747	\| '(' paren_type ')'
[4d51835]	3748	{ $$ = $2; }
	3749	;
[51b73452]	3750
[5e25953]	3751	variable_type_redeclarator:
	3752	paren_type attribute_list_opt
	3753	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3754	\| variable_type_ptr
	3755	\| variable_type_array attribute_list_opt
[5e25953]	3756	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3757	\| variable_type_function attribute_list_opt
[5e25953]	3758	{ $$ = $1->addQualifiers( $2 ); }
	3759	;
	3760
[1f771fc]	3761	variable_type_ptr:
[c6b1105]	3762	ptrref_operator variable_type_redeclarator
[a5f9444]	3763	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3764	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3765	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3766	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3767	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3768	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3769	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3770	;
[51b73452]	3771
[1f771fc]	3772	variable_type_array:
[2871210]	3773	paren_type array_dimension
[4d51835]	3774	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3775	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3776	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3777	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3778	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3779	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3780	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3781	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3782	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3783	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3784	{ $$ = $2; }
[1f771fc]	3785	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3786	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3787	;
[51b73452]	3788
[1f771fc]	3789	variable_type_function:
[647e2ea]	3790	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3791	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3792	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3793	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3794	\| '(' variable_type_function ')' // redundant parenthesis
	3795	{ $$ = $2; }
	3796	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3797	{ $$ = $3->addQualifiers( $2 ); }
	3798	;
	3799
	3800	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3801	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3802	// arrays and functions.
	3803
	3804	function_type_redeclarator:
	3805	function_type_no_ptr attribute_list_opt
	3806	{ $$ = $1->addQualifiers( $2 ); }
	3807	\| function_type_ptr
	3808	\| function_type_array attribute_list_opt
	3809	{ $$ = $1->addQualifiers( $2 ); }
	3810	;
	3811
	3812	function_type_no_ptr:
[647e2ea]	3813	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3814	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3815	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3816	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3817	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3818	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3819	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3820	{ $$ = $2; }
[1f771fc]	3821	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3822	{ $$ = $3->addQualifiers( $2 ); }
	3823	;
	3824
	3825	function_type_ptr:
	3826	ptrref_operator function_type_redeclarator
	3827	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3828	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3829	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3830	\| '(' function_type_ptr ')' attribute_list_opt
	3831	{ $$ = $2->addQualifiers( $4 ); }
	3832	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3833	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3834	;
	3835
	3836	function_type_array:
	3837	'(' function_type_ptr ')' array_dimension
	3838	{ $$ = $2->addArray( $4 ); }
	3839	\| '(' attribute_list function_type_ptr ')' array_dimension
	3840	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3841	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3842	{ $$ = $2->addArray( $4 ); }
	3843	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3844	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3845	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3846	{ $$ = $2; }
[1f771fc]	3847	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3848	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3849	;
[51b73452]	3850
[c0aa336]	3851	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3852	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3853	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3854	// pointers to arrays and functions.
[51b73452]	3855
	3856	identifier_parameter_declarator:
[4d51835]	3857	paren_identifier attribute_list_opt
[1db21619]	3858	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3859	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3860	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3861	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3862	\| identifier_parameter_ptr
	3863	\| identifier_parameter_array attribute_list_opt
[1db21619]	3864	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3865	\| identifier_parameter_function attribute_list_opt
[1db21619]	3866	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3867	;
[51b73452]	3868
	3869	identifier_parameter_ptr:
[dd51906]	3870	ptrref_operator identifier_parameter_declarator
[a5f9444]	3871	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3872	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3873	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3874	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3875	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3876	;
[51b73452]	3877
	3878	identifier_parameter_array:
[4d51835]	3879	paren_identifier array_parameter_dimension
	3880	{ $$ = $1->addArray( $2 ); }
	3881	\| '(' identifier_parameter_ptr ')' array_dimension
	3882	{ $$ = $2->addArray( $4 ); }
	3883	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3884	{ $$ = $2->addArray( $4 ); }
	3885	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3886	{ $$ = $2; }
	3887	;
[51b73452]	3888
	3889	identifier_parameter_function:
[647e2ea]	3890	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3891	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3892	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3893	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3894	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3895	{ $$ = $2; }
	3896	;
[b87a5ed]	3897
[de62360d]	3898	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3899	// e.g.:
[c11e31c]	3900	//
[b87a5ed]	3901	// typedef int foo;
[114014c]	3902	// forall( otype T ) struct foo;
[b87a5ed]	3903	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3904	//
[c0aa336]	3905	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3906
[2871210]	3907	type_parameter_redeclarator:
[f9c3100]	3908	typedef_name attribute_list_opt
[1db21619]	3909	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3910	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3911	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3912	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3913	\| type_parameter_ptr
	3914	\| type_parameter_array attribute_list_opt
[1db21619]	3915	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3916	\| type_parameter_function attribute_list_opt
[1db21619]	3917	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3918	;
[51b73452]	3919
[f9c3100]	3920	typedef_name:
[4d51835]	3921	TYPEDEFname
[7fdb94e1]	3922	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3923	\| TYPEGENname
[7fdb94e1]	3924	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3925	;
[51b73452]	3926
[2871210]	3927	type_parameter_ptr:
[dd51906]	3928	ptrref_operator type_parameter_redeclarator
[a5f9444]	3929	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3930	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3931	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3932	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3933	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3934	;
[51b73452]	3935
[2871210]	3936	type_parameter_array:
[f9c3100]	3937	typedef_name array_parameter_dimension
[4d51835]	3938	{ $$ = $1->addArray( $2 ); }
[2871210]	3939	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3940	{ $$ = $2->addArray( $4 ); }
	3941	;
[51b73452]	3942
[2871210]	3943	type_parameter_function:
[7e13b11]	3944	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3945	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3946	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3947	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3948	;
[b87a5ed]	3949
[de62360d]	3950	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3951	// which the type applies, e.g.:
[c11e31c]	3952	//
[b87a5ed]	3953	// sizeof( int );
[c0aa336]	3954	// sizeof( int * );
[b87a5ed]	3955	// sizeof( int [10] );
[c0aa336]	3956	// sizeof( int (*)() );
	3957	// sizeof( int () );
[c11e31c]	3958	//
[de62360d]	3959	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3960	// and functions versus pointers to arrays and functions.
[51b73452]	3961
	3962	abstract_declarator:
[4d51835]	3963	abstract_ptr
	3964	\| abstract_array attribute_list_opt
[1db21619]	3965	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3966	\| abstract_function attribute_list_opt
[1db21619]	3967	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3968	;
[51b73452]	3969
	3970	abstract_ptr:
[dd51906]	3971	ptrref_operator
[a5f9444]	3972	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3973	\| ptrref_operator type_qualifier_list
[ce8c12f]	3974	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3975	\| ptrref_operator abstract_declarator
[a5f9444]	3976	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3977	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3978	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3979	\| '(' abstract_ptr ')' attribute_list_opt
	3980	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3981	;
[51b73452]	3982
	3983	abstract_array:
[4d51835]	3984	array_dimension
	3985	\| '(' abstract_ptr ')' array_dimension
	3986	{ $$ = $2->addArray( $4 ); }
	3987	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3988	{ $$ = $2->addArray( $4 ); }
	3989	\| '(' abstract_array ')' // redundant parenthesis
	3990	{ $$ = $2; }
	3991	;
[51b73452]	3992
	3993	abstract_function:
[7e13b11]	3994	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3995	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3996	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3997	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3998	\| '(' abstract_function ')' // redundant parenthesis
	3999	{ $$ = $2; }
	4000	;
[51b73452]	4001
	4002	array_dimension:
[4d51835]	4003	// Only the first dimension can be empty.
[2871210]	4004	'[' ']'
[a5f9444]	4005	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	4006	\| '[' ']' multi_array_dimension
[a5f9444]	4007	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	4008	// Cannot use constant_expression because of tuples => semantic check
[917f67dd]	4009	\| '[' assignment_expression ',' comma_expression ']' // CFA
	4010	{ $$ = DeclarationNode::newArray( $2, nullptr, false )->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[6a99803]	4011	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	4012
	4013	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	4014	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	4015
[917f67dd]	4016	\| '[' array_type_list ']' // CFA
	4017	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
[4d51835]	4018	\| multi_array_dimension
	4019	;
[51b73452]	4020
[647e2ea]	4021	// array_dimension_list:
	4022	// assignment_expression
	4023	// \| array_dimension_list ',' assignment_expression
	4024	// ;
	4025
[d41735a]	4026	array_type_list:
	4027	basic_type_name
[bb7422a]	4028	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4029	\| type_name
[bb7422a]	4030	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4031	\| assignment_expression upupeq assignment_expression
	4032	\| array_type_list ',' basic_type_name
[b93c544]	4033	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4034	\| array_type_list ',' type_name
[b93c544]	4035	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4036	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4037	;
	4038
	4039	upupeq:
	4040	'~'
	4041	{ $$ = OperKinds::LThan; }
	4042	\| ErangeUpEq
	4043	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4044	;
[d41735a]	4045
[51b73452]	4046	multi_array_dimension:
[917f67dd]	4047	'[' assignment_expression ']'
	4048	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
	4049	\| '[' '*' ']' // C99
[4d51835]	4050	{ $$ = DeclarationNode::newVarArray( 0 ); }
[917f67dd]	4051	\| multi_array_dimension '[' assignment_expression ']'
	4052	{ $$ = $1->addArray( DeclarationNode::newArray( $3, nullptr, false ) ); }
	4053	\| multi_array_dimension '[' '*' ']' // C99
[4d51835]	4054	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4055	;
[51b73452]	4056
[c11e31c]	4057	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4058	// identifier to which the type applies, e.g.:
	4059	//
[c0aa336]	4060	// int f( int ); // not handled here
	4061	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4062	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4063	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4064	//
[de62360d]	4065	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4066	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4067	// parenthesis around a typedef name:
[c0aa336]	4068	//
	4069	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4070	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4071	// not as redundant parentheses around the identifier."
	4072	//
	4073	// For example:
	4074	//
	4075	// typedef float T;
	4076	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4077	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4078	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4079	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4080	//
	4081	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4082	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4083	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4084	// functions.
[51b73452]	4085
[59c7e3e]	4086	abstract_parameter_declarator_opt:
	4087	// empty
	4088	{ $$ = nullptr; }
	4089	\| abstract_parameter_declarator
	4090	;
	4091
[51b73452]	4092	abstract_parameter_declarator:
[4d51835]	4093	abstract_parameter_ptr
[b6b3c42]	4094	\| '&' MUTEX attribute_list_opt
[446740a]	4095	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4096	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4097	\| abstract_parameter_array attribute_list_opt
[1db21619]	4098	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4099	\| abstract_parameter_function attribute_list_opt
[1db21619]	4100	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4101	;
[51b73452]	4102
	4103	abstract_parameter_ptr:
[dd51906]	4104	ptrref_operator
[ce8c12f]	4105	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4106	\| ptrref_operator type_qualifier_list
[ce8c12f]	4107	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4108	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4109	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4110	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4111	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4112	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4113	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4114	;
[51b73452]	4115
	4116	abstract_parameter_array:
[4d51835]	4117	array_parameter_dimension
	4118	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4119	{ $$ = $2->addArray( $4 ); }
	4120	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4121	{ $$ = $2->addArray( $4 ); }
	4122	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4123	{ $$ = $2; }
	4124	;
[51b73452]	4125
	4126	abstract_parameter_function:
[7e13b11]	4127	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4128	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4129	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4130	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4131	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4132	{ $$ = $2; }
	4133	;
[51b73452]	4134
	4135	array_parameter_dimension:
[4d51835]	4136	// Only the first dimension can be empty or have qualifiers.
	4137	array_parameter_1st_dimension
	4138	\| array_parameter_1st_dimension multi_array_dimension
	4139	{ $$ = $1->addArray( $2 ); }
	4140	\| multi_array_dimension
	4141	;
[51b73452]	4142
[c11e31c]	4143	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4144	//
[de62360d]	4145	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4146	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4147
	4148	array_parameter_1st_dimension:
[2871210]	4149	'[' ']'
[a5f9444]	4150	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4151	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4152	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4153	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4154	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4155	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4156	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4157	\| '[' push type_qualifier_list assignment_expression pop ']'
	4158	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4159	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4160	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4161	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4162	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4163	;
[b87a5ed]	4164
[c0aa336]	4165	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4166	//
[71a422a]	4167	// struct S {
	4168	// int;
	4169	// int *;
	4170	// int [10];
	4171	// int (*)();
	4172	// };
[51b73452]	4173
	4174	variable_abstract_declarator:
[4d51835]	4175	variable_abstract_ptr
	4176	\| variable_abstract_array attribute_list_opt
[1db21619]	4177	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4178	\| variable_abstract_function attribute_list_opt
[1db21619]	4179	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4180	;
[51b73452]	4181
	4182	variable_abstract_ptr:
[dd51906]	4183	ptrref_operator
[a5f9444]	4184	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4185	\| ptrref_operator type_qualifier_list
[ce8c12f]	4186	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4187	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4188	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4189	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4190	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4191	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4192	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4193	;
[51b73452]	4194
	4195	variable_abstract_array:
[4d51835]	4196	array_dimension
	4197	\| '(' variable_abstract_ptr ')' array_dimension
	4198	{ $$ = $2->addArray( $4 ); }
	4199	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4200	{ $$ = $2->addArray( $4 ); }
	4201	\| '(' variable_abstract_array ')' // redundant parenthesis
	4202	{ $$ = $2; }
	4203	;
[51b73452]	4204
	4205	variable_abstract_function:
[647e2ea]	4206	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4207	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4208	\| '(' variable_abstract_function ')' // redundant parenthesis
	4209	{ $$ = $2; }
	4210	;
[b87a5ed]	4211
[de62360d]	4212	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4213	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4214
[c0aa336]	4215	cfa_identifier_parameter_declarator_tuple: // CFA
	4216	cfa_identifier_parameter_declarator_no_tuple
	4217	\| cfa_abstract_tuple
	4218	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4219	{ $$ = $2->addQualifiers( $1 ); }
	4220	;
[b87a5ed]	4221
[c0aa336]	4222	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4223	cfa_identifier_parameter_ptr
	4224	\| cfa_identifier_parameter_array
[4d51835]	4225	;
[b87a5ed]	4226
[c0aa336]	4227	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4228	// No SUE declaration in parameter list.
	4229	ptrref_operator type_specifier_nobody
[a5f9444]	4230	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4231	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4232	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4233	\| ptrref_operator cfa_abstract_function
[a5f9444]	4234	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4235	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4236	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4237	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4238	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4239	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4240	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4241	;
[b87a5ed]	4242
[c0aa336]	4243	cfa_identifier_parameter_array: // CFA
[de62360d]	4244	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4245	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4246	'[' ']' type_specifier_nobody
[a5f9444]	4247	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4248	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4249	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4250	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4251	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4252	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4253	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4254	\| multi_array_dimension type_specifier_nobody
[4d51835]	4255	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4256
[c0aa336]	4257	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4258	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4259	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4260	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4261	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4262	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4263	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4264	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4265	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4266	{ $$ = $2->addNewArray( $1 ); }
	4267	;
[51b73452]	4268
[c0aa336]	4269	cfa_array_parameter_1st_dimension:
[917f67dd]	4270	'[' type_qualifier_list '*' ']' // remaining C99
	4271	{ $$ = DeclarationNode::newVarArray( $2 ); }
	4272	\| '[' type_qualifier_list assignment_expression ']'
	4273	{ $$ = DeclarationNode::newArray( $3, $2, false ); }
	4274	\| '[' declaration_qualifier_list assignment_expression ']'
[4d51835]	4275	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4276	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4277	// appear in this context.
[917f67dd]	4278	{ $$ = DeclarationNode::newArray( $3, $2, true ); }
	4279	\| '[' declaration_qualifier_list type_qualifier_list assignment_expression ']'
	4280	{ $$ = DeclarationNode::newArray( $4, $3->addQualifiers( $2 ), true ); }
[4d51835]	4281	;
[b87a5ed]	4282
[de62360d]	4283	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4284	// identifier to which the type applies, e.g.:
[c11e31c]	4285	//
[b87a5ed]	4286	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4287	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4288	//
	4289	// These rules need LR(3):
	4290	//
[c0aa336]	4291	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4292	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4293	//
	4294	// since a function return type can be syntactically identical to a tuple type:
	4295	//
[b87a5ed]	4296	// [int, int] t;
	4297	// [int, int] f( int );
[c11e31c]	4298	//
[2871210]	4299	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4300	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4301	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4302	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4303
[c0aa336]	4304	cfa_abstract_declarator_tuple: // CFA
	4305	cfa_abstract_tuple
	4306	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4307	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4308	\| cfa_abstract_declarator_no_tuple
[4d51835]	4309	;
[b87a5ed]	4310
[c0aa336]	4311	cfa_abstract_declarator_no_tuple: // CFA
	4312	cfa_abstract_ptr
	4313	\| cfa_abstract_array
[4d51835]	4314	;
[b87a5ed]	4315
[c0aa336]	4316	cfa_abstract_ptr: // CFA
[dd51906]	4317	ptrref_operator type_specifier
[a5f9444]	4318	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4319	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4320	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4321	\| ptrref_operator cfa_abstract_function
[a5f9444]	4322	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4323	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4324	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4325	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4326	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4327	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4328	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4329	;
[b87a5ed]	4330
[c0aa336]	4331	cfa_abstract_array: // CFA
[de62360d]	4332	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4333	// empty (void) function return type.
[2871210]	4334	'[' ']' type_specifier
[2298f728]	4335	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4336	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4337	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4338	\| multi_array_dimension type_specifier
	4339	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4340	\| '[' ']' cfa_abstract_ptr
[2298f728]	4341	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4342	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4343	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4344	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4345	{ $$ = $2->addNewArray( $1 ); }
	4346	;
[b87a5ed]	4347
[c0aa336]	4348	cfa_abstract_tuple: // CFA
[917f67dd]	4349	'[' cfa_abstract_parameter_list ']'
	4350	{ $$ = DeclarationNode::newTuple( $2 ); }
	4351	\| '[' type_specifier_nobody ELLIPSIS ']'
[13e8427]	4352	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[917f67dd]	4353	\| '[' type_specifier_nobody ELLIPSIS constant_expression ']'
[13e8427]	4354	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4355	;
[b87a5ed]	4356
[c0aa336]	4357	cfa_abstract_function: // CFA
[647e2ea]	4358	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4359	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4360	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4361	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4362	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4363	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4364	;
[b87a5ed]	4365
[de62360d]	4366	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4367	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4368	//
[de62360d]	4369	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4370	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4371	//
	4372	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4373	// prototype-format parameter type declarators) is an obsolescent feature."
	4374	//
[de62360d]	4375	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4376	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4377
[e1d66c84]	4378	// ********************** MISCELLANEOUS ******************************
[51b73452]	4379
[b87a5ed]	4380	comma_opt: // redundant comma
[4d51835]	4381	// empty
	4382	\| ','
	4383	;
[51b73452]	4384
[5a51798]	4385	default_initializer_opt:
[4d51835]	4386	// empty
[58dd019]	4387	{ $$ = nullptr; }
[4d51835]	4388	\| '=' assignment_expression
	4389	{ $$ = $2; }
	4390	;
[51b73452]	4391
	4392	%%
[a1c9ddd]	4393
[c11e31c]	4394	// ----end of grammar----
[51b73452]	4395
[c11e31c]	4396	// Local Variables: //
[b87a5ed]	4397	// mode: c++ //
[de62360d]	4398	// tab-width: 4 //
[7e13b11]	4399	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4400	// End: //

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