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Last change on this file since 55ba259e was 55ba259e, checked in by Peter A. Buhr <pabuhr@…>, 2 years ago
clarify for-control for enumerations
Property mode set to `100644`
File size: 177.7 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
[55ba259e]	12	// Last Modified On : Wed Jun 26 09:37:28 2024
	13	// Update Count : 6700
[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."
	226	#define MISSING_LOW "illegal syntax, missing low value for up-to range so index is uninitialized."
	227	#define MISSING_HIGH "illegal syntax, missing high value for down-to range so index is uninitialized."
	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 ) ) );
[0982a056]	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
[089b39e1]	277	ForCtrl * enumRangeCtrl( ExpressionNode * index_expr, __attribute__((unused)) OperKinds compop, ExpressionNode * range_over_expr ) {
[525f7ad]	278	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index_expr->expr.get()) ) {
[253d0b4]	279	DeclarationNode * indexDecl = DeclarationNode::newName( new std::string(identifier->name) );
[525f7ad]	280	assert( range_over_expr );
[253d0b4]	281	return new ForCtrl( new StatementNode( indexDecl ), range_over_expr );
[525f7ad]	282	} else {
[253d0b4]	283	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[525f7ad]	284	} // if
	285	} // enumRangeCtrl
	286
[996c8ed]	287	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[253d0b4]	288	SemanticError( yylloc, "illegal syntax, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
[b1f2007d]	289	"Possible cause is misspelled type name or missing generic parameter.",
	290	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	291	} // IdentifierBeforeIdentifier
	292
	293	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[253d0b4]	294	SemanticError( yylloc, "illegal syntax, identifier \"%s\" cannot appear before a %s.\n"
[b1f2007d]	295	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	296	identifier.c_str(), kind );
[996c8ed]	297	} // IdentifierBeforeType
	298
[24711a3]	299	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	300
[201aeb9]	301	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	302	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	303	if ( N ) { \
	304	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	305	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	306	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	307	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	308	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	309	} else { \
	310	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	311	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	312	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	313	}
[51b73452]	314	%}
	315
[15697ff]	316	%define parse.error verbose
	317
[201aeb9]	318	// Types declaration for productions
[7cf8006]	319
[0982a056]	320	%union {
[6cef439]	321	// A raw token can be used.
[a67b60e]	322	Token tok;
[6cef439]	323
	324	// The general node types hold some generic node or list of nodes.
[a67b60e]	325	DeclarationNode * decl;
[6cef439]	326	InitializerNode * init;
	327	ExpressionNode * expr;
[32d6fdc]	328	StatementNode * stmt;
[6611177]	329	ClauseNode * clause;
[6cef439]	330	TypeData * type;
	331
	332	// Special "nodes" containing compound information.
[473d1da0]	333	CondCtl * ifctl;
[32d6fdc]	334	ForCtrl * forctl;
	335	LabelNode * labels;
[6cef439]	336
	337	// Various flags and single values that become fields later.
	338	ast::AggregateDecl::Aggregate aggKey;
	339	ast::TypeDecl::Kind tclass;
[32d6fdc]	340	OperKinds oper;
	341	bool is_volatile;
	342	EnumHiding enum_hiding;
	343	ast::ExceptionKind except_kind;
[6cef439]	344	// String passes ownership with it.
	345	std::string * str;
	346
	347	// Narrower node types are used to avoid constant unwrapping.
	348	ast::WaitForStmt * wfs;
	349	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	350	ast::GenericExpr * genexpr;
[a67b60e]	351	}
	352
[bb7422a]	353	// ********************** TERMINAL TOKENS ******************************
[51b73452]	354
[c11e31c]	355	// keywords
[51b73452]	356	%token TYPEDEF
[a7c90d4]	357	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	358	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	359	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	360	%token NORETURN // C11
[51b73452]	361	%token CONST VOLATILE
[b87a5ed]	362	%token RESTRICT // C99
[a7c90d4]	363	%token ATOMIC // C11
[1f652a7]	364	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	365	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	366	%token BOOL COMPLEX IMAGINARY // C99
[f1da02c]	367	%token INT128 UINT128 uuFLOAT80 uuFLOAT128 // GCC
[e15853c]	368	%token uFLOAT16 uFLOAT32 uFLOAT32X uFLOAT64 uFLOAT64X uFLOAT128 // GCC
[15f769c]	369	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	370	%token ZERO_T ONE_T // CFA
[a8ced63]	371	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	372	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	373	%token ENUM STRUCT UNION
[c27fb59]	374	%token EXCEPTION // CFA
[553772b]	375	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	376	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	377	// %token RESUME // CFA
[1f652a7]	378	%token LABEL // GCC
[25744d2]	379	%token SUSPEND // CFA
[b87a5ed]	380	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	381	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	382	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	383	%token CORUN COFOR
[4744074]	384	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	385	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	386	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	387
[c11e31c]	388	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	389	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	390	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	391	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	392	%token<tok> DIRECTIVE
[1b29996]	393	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	394	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	395	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	396	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	397
[c11e31c]	398	// multi-character operators
[b87a5ed]	399	%token ARROW // ->
	400	%token ICR DECR // ++ --
	401	%token LS RS // << >>
	402	%token LE GE EQ NE // <= >= == !=
	403	%token ANDAND OROR // && \|\|
[647e2ea]	404	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	405
[e5f2a67]	406	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	407	%token PLUSassign MINUSassign // += -=
	408	%token LSassign RSassign // <<= >>=
	409	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	410
[d69f4bb4]	411	%token ErangeUpEq ErangeDown ErangeDownEq // ~= -~ -~=
[e7aed49]	412	%token ATassign // @=
[097e2b0]	413
[e16eb460]	414	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	415	%type<tok> quasi_keyword
[32d6fdc]	416	%type<expr> string_literal
[ab57786]	417	%type<str> string_literal_list
[51b73452]	418
[71a422a]	419	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	420
[c11e31c]	421	// expressions
[32d6fdc]	422	%type<expr> constant
[71a422a]	423	%type<expr> tuple tuple_expression_list
[32d6fdc]	424	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	425	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	426	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	427	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	428	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	429	%type<expr> logical_AND_expression logical_OR_expression
	430	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	431	%type<expr> comma_expression comma_expression_opt
	432	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[473d1da0]	433	%type<ifctl> conditional_declaration
[71a422a]	434	%type<forctl> for_control_expression for_control_expression_list
[32d6fdc]	435	%type<oper> upupeq updown updowneq downupdowneq
	436	%type<expr> subrange
[c0aa336]	437	%type<decl> asm_name_opt
[71a422a]	438	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	439	%type<labels> label_list
	440	%type<expr> asm_clobbers_list_opt
	441	%type<is_volatile> asm_volatile_opt
	442	%type<expr> handler_predicate_opt
[67d4e37]	443	%type<genexpr> generic_association generic_assoc_list
[51b73452]	444
[c11e31c]	445	// statements
[71a422a]	446	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	447	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	448	%type<stmt> selection_statement
[71a422a]	449	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	450	%type<expr> case_value
[71a422a]	451	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	452	%type<stmt> iteration_statement jump_statement
[71a422a]	453	%type<stmt> expression_statement asm_statement
[32d6fdc]	454	%type<stmt> with_statement
	455	%type<expr> with_clause_opt
[11ab0b4a]	456	%type<stmt> corun_statement cofor_statement
[32d6fdc]	457	%type<stmt> exception_statement
[6611177]	458	%type<clause> handler_clause finally_clause
[32d6fdc]	459	%type<except_kind> handler_key
	460	%type<stmt> mutex_statement
	461	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	462	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	463	%type<wfs> wor_waitfor_clause
[6e1e2d0]	464	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	465
[c11e31c]	466	// declarations
[c0aa336]	467	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	468	%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]	469	%type<decl> abstract_parameter_declaration
[51b73452]	470
[e307e12]	471	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	472	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	473
[9997fee]	474	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	475
[32d6fdc]	476	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	477
[84d58c5]	478	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	479	%type<type> basic_type_name_type
	480	%type<type> vtable vtable_opt default_opt
[51b73452]	481
[4040425]	482	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	483
	484	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	485	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	486
[d0ffed1]	487	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	488
[a8ced63]	489	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	490	%type<init> enumerator_value_opt
[51b73452]	491
[3d56d15b]	492	%type<decl> external_definition external_definition_list external_definition_list_opt
	493
	494	%type<decl> exception_declaration
[51b73452]	495
[12f1156]	496	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	497	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	498
[4d51835]	499	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	500
[d3bc0ad]	501	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	502	%type<decl> identifier_list
[51b73452]	503
[c0aa336]	504	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	505	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	506	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	507
[c0aa336]	508	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	509
[679e644]	510	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	511	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	512
[c0aa336]	513	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	514	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	515
[647e2ea]	516	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	517
[c0aa336]	518	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	519
[b9be000b]	520	%type<decl> c_declaration static_assert
[c0aa336]	521	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	522	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	523
[647e2ea]	524	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	525
[2871210]	526	%type<decl> paren_identifier paren_type
[51b73452]	527
[0da3e2c]	528	%type<decl> storage_class storage_class_list
[51b73452]	529
[d0ffed1]	530	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	531
[5a51798]	532	%type<tclass> type_class new_type_class
[51b73452]	533	%type<decl> type_declarator type_declarator_name type_declaring_list
	534
[6cef439]	535	%type<decl> type_declaration_specifier type_type_specifier
	536	%type<type> type_name typegen_name
[f9c3100]	537	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	538
[1f771fc]	539	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	540	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	541
	542	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	543
[84d58c5]	544	%type<decl> type type_no_function
	545	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	546
[647e2ea]	547	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	548
[6cef439]	549	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	550	%type<type> type_qualifier_name
[f9c3100]	551	%type<decl> type_specifier type_specifier_nobody
[51b73452]	552
[c0aa336]	553	%type<decl> variable_declarator variable_ptr variable_array variable_function
	554	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	555
[f9c3100]	556	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	557
[c11e31c]	558	// initializers
[32d6fdc]	559	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	560
[c11e31c]	561	// designators
[32d6fdc]	562	%type<expr> designator designator_list designation
[51b73452]	563
	564
[65d6de4]	565	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	566	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	567	// if ( C ) S1 else S2
	568	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	569	// Similar issues exit with the waitfor statement.
[51b73452]	570
[9fd9d015]	571	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	572	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	573	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	574	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	575	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	576	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	577	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	578	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	579	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	580	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	583	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	584	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	585
[51b73452]	586
[65d6de4]	587	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	588	// forall( otype T ) struct Foo { T v; };
	589	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	590	// Foo ( *fp )( int );
	591	// `---' matches start of TYPEGENname '('
[fc20514]	592	// must be:
[a16a7ec]	593	// Foo( int ) ( *fp )( int );
[fc20514]	594	// The same problem occurs here:
	595	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	596	// must be:
	597	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	598
	599	// Order of these lines matters (low-to-high precedence).
	600	%precedence TYPEGENname
[284da8c]	601	%precedence '}'
[65d6de4]	602	%precedence '('
	603
[c786e1d]	604	// %precedence RESUME
	605	// %precedence '{'
	606	// %precedence ')'
	607
[f38e7d7]	608	%locations // support location tracking for error messages
[930f69e]	609
[b87a5ed]	610	%start translation_unit // parse-tree root
[51b73452]	611
	612	%%
[e1d66c84]	613	// ********************** Namespace Management ******************************
[c11e31c]	614
[3d26610]	615	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	616	// which are lexically identical.
[c11e31c]	617	//
[3d26610]	618	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	619	// foo f; // to allow it to appear in this context
[c11e31c]	620	//
[3d26610]	621	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	622	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	623	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	624	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	625	// must be distinguished by the lexical scanner.
[c11e31c]	626	//
[3d26610]	627	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	628	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	629	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	630	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	631	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	632	// This requires distinguishing between type names that are local to the current declaration scope and those that
	633	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	634	//
[3d26610]	635	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	636	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	637	// around the list separator.
	638	//
[71a422a]	639	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	640	// push pop push pop
[51b73452]	641
	642	push:
[ab57786]	643	{ typedefTable.enterScope(); }
[4d51835]	644	;
[51b73452]	645
	646	pop:
[ab57786]	647	{ typedefTable.leaveScope(); }
[4d51835]	648	;
[51b73452]	649
[e1d66c84]	650	// ********************** CONSTANTS ******************************
[51b73452]	651
	652	constant:
[de62360d]	653	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	654	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	655	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	656	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	657	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	658	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	659	;
[51b73452]	660
[5b2edbc]	661	quasi_keyword: // CFA
	662	TIMEOUT
[9fd9d015]	663	\| WAND
[5b2edbc]	664	\| WOR
[9fb1367]	665	\| CATCH
	666	\| RECOVER
	667	\| CATCHRESUME
	668	\| FIXUP
	669	\| FINALLY
[5b2edbc]	670	;
	671
[033ff37]	672	identifier:
[4d51835]	673	IDENTIFIER
[5b2edbc]	674	\| quasi_keyword
[e16eb460]	675	;
	676
	677	identifier_at:
	678	identifier
[679e644]	679	\| '@' // CFA
	680	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	681	;
[51b73452]	682
[12f1156]	683	identifier_or_type_name:
	684	identifier
	685	\| TYPEDEFname
	686	\| TYPEGENname
	687	;
	688
[ab57786]	689	string_literal:
[32d6fdc]	690	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	691	;
	692
[b87a5ed]	693	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	694	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	695	\| string_literal_list STRINGliteral
	696	{
[15697ff]	697	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	698	delete $2; // allocated by lexer
[ab57786]	699	$$ = $1; // conversion from tok to str
[7bf7fb9]	700	}
[4d51835]	701	;
[51b73452]	702
[e1d66c84]	703	// ********************** EXPRESSIONS ******************************
[51b73452]	704
	705	primary_expression:
[4d51835]	706	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	707	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	708	\| quasi_keyword
[bb7422a]	709	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	710	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	711	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	712	\| tuple
[4d51835]	713	\| '(' comma_expression ')'
	714	{ $$ = $2; }
	715	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	716	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	717	\| type_name '.' identifier // CFA, nested type
[6cef439]	718	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	719	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	720	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	721	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	722	{
	723	// add the missing control expression to the GenericExpr and return it
[702e826]	724	$5->control = maybeMoveBuild( $3 );
[d807ca28]	725	$$ = new ExpressionNode( $5 );
	726	}
[c786e1d]	727	// \| RESUME '(' comma_expression ')'
	728	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	729	// \| RESUME '(' comma_expression ')' compound_statement
	730	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	731	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	732	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	733	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	734	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	735	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	736	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	737	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	738	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	739	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	740	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	741	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	742	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	743	;
	744
	745	generic_assoc_list: // C11
[d807ca28]	746	generic_association
[24c3b67]	747	\| generic_assoc_list ',' generic_association
[d807ca28]	748	{
	749	// steal the association node from the singleton and delete the wrapper
[bb7422a]	750	assert( 1 == $3->associations.size() );
	751	$1->associations.push_back( $3->associations.front() );
[d807ca28]	752	delete $3;
	753	$$ = $1;
	754	}
[24c3b67]	755	;
	756
	757	generic_association: // C11
	758	type_no_function ':' assignment_expression
[d807ca28]	759	{
	760	// create a GenericExpr wrapper with one association pair
[bb7422a]	761	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	762	}
[24c3b67]	763	\| DEFAULT ':' assignment_expression
[bb7422a]	764	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	765	;
[51b73452]	766
	767	postfix_expression:
[4d51835]	768	primary_expression
[1d71208]	769	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	770	// Historic, transitional: Disallow commas in subscripts.
	771	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	772	// Current: Commas in subscripts make tuples.
[b93c544]	773	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	774	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	775	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	776	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	777	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	778	// equivalent to the old x[i,j].
[bb7422a]	779	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	780	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	781	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	782	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	783	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	784	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	785	{
	786	Token fn;
	787	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	788	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	789	}
[cbbd8fd7]	790	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	791	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	792	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
	793	// { SemanticError( yylloc, "va_arg is currently unimplemented." ); $$ = nullptr; }
[b93c544]	794	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, new string( "__builtin_va_arg" ) ) ),
	795	$3->set_last( (ExpressionNode *)($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
[cbbd8fd7]	853	argument_expression_list_opt:
[757ffed]	854	// empty
	855	{ $$ = nullptr; }
[e16eb460]	856	\| argument_expression_list
	857	;
	858
	859	argument_expression_list:
	860	argument_expression
[cbbd8fd7]	861	\| argument_expression_list_opt ',' argument_expression
[b93c544]	862	{ $$ = $1->set_last( $3 ); }
[4d51835]	863	;
[51b73452]	864
	865	argument_expression:
[757ffed]	866	'@' // CFA, default parameter
[679e644]	867	{ SemanticError( yylloc, "Default parameter for argument is currently unimplemented." ); $$ = nullptr; }
[9fd9d015]	868	// { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); }
[4d51835]	869	\| assignment_expression
	870	;
[b87a5ed]	871
[679e644]	872	field_name_list: // CFA, tuple field selector
[4d51835]	873	field
[b93c544]	874	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	875	;
[b87a5ed]	876
	877	field: // CFA, tuple field selector
[faddbd8]	878	field_name
[930f69e]	879	\| FLOATING_DECIMALconstant field
[bb7422a]	880	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	881	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	882	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	883	\| field_name '.' field
[bb7422a]	884	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	885	\| field_name '.' '[' field_name_list ']'
[bb7422a]	886	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	887	\| field_name ARROW field
[bb7422a]	888	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	889	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	890	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	891	;
[51b73452]	892
[faddbd8]	893	field_name:
[df22130]	894	INTEGERconstant fraction_constants_opt
[bb7422a]	895	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	896	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	897	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	898	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	899	{
[bb7422a]	900	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	901	}
[1b29996]	902	;
	903
[df22130]	904	fraction_constants_opt:
[1b29996]	905	// empty
[8780e30]	906	{ $$ = nullptr; }
[df22130]	907	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	908	{
[bb7422a]	909	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	910	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	911	}
[faddbd8]	912	;
	913
[51b73452]	914	unary_expression:
[4d51835]	915	postfix_expression
[c6b1105]	916	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	917	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	918	\| constant
[ab57786]	919	\| string_literal
[32d6fdc]	920	{ $$ = $1; }
[4d51835]	921	\| EXTENSION cast_expression // GCC
[e04ef3a]	922	{ $$ = $2->set_extension( true ); }
[c6b1105]	923	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	924	// { * X; } // dereference X
	925	// { * int X; } // CFA declaration of pointer to int
[51e076e]	926	\| ptrref_operator cast_expression // CFA
[9706554]	927	{
	928	switch ( $1 ) {
[bb7422a]	929	case OperKinds::AddressOf:
	930	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	931	break;
[bb7422a]	932	case OperKinds::PointTo:
	933	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	934	break;
[bb7422a]	935	case OperKinds::And:
	936	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	937	break;
[bb7422a]	938	default:
[9706554]	939	assert( false );
	940	}
	941	}
[4d51835]	942	\| unary_operator cast_expression
[bb7422a]	943	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	944	\| ICR unary_expression
[bb7422a]	945	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	946	\| DECR unary_expression
[bb7422a]	947	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	948	\| SIZEOF unary_expression
[bb7422a]	949	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[84d58c5]	950	\| SIZEOF '(' type_no_function ')'
[bb7422a]	951	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	952	\| ALIGNOF unary_expression // GCC, variable alignment
[bb7422a]	953	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a2e0687]	954	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	955	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	956
	957	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	958	// look ahead, so the cfa_abstract_function is factored out.
	959	\| SIZEOF '(' cfa_abstract_function ')'
	960	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	961	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	962	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	963
[033ff37]	964	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	965	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	966	\| TYPEID '(' type ')'
[1f652a7]	967	{
	968	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	969	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	970	}
[a8ced63]	971	\| COUNTOF '(' type_no_function ')'
	972	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	973	\| COUNTOF unary_expression
	974	{ SemanticError( yylloc, "countof for expressions is currently unimplemented. "); $$ = nullptr; }
[4d51835]	975	;
[51b73452]	976
[dd51906]	977	ptrref_operator:
[d9e2280]	978	'*' { $$ = OperKinds::PointTo; }
	979	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	980	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	981	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	982	;
	983
[51b73452]	984	unary_operator:
[d9e2280]	985	'+' { $$ = OperKinds::UnPlus; }
	986	\| '-' { $$ = OperKinds::UnMinus; }
	987	\| '!' { $$ = OperKinds::Neg; }
	988	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	989	;
[51b73452]	990
	991	cast_expression:
[4d51835]	992	unary_expression
[84d58c5]	993	\| '(' type_no_function ')' cast_expression
[bb7422a]	994	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	995	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	996	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	997	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	998	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	999	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	1000	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	1001	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	1002	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	1003	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	1004	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	1005	\| '(' COERCE type_no_function ')' cast_expression // CFA
	1006	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	1007	\| '(' qualifier_cast_list ')' cast_expression // CFA
	1008	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	1009	// \| '(' type_no_function ')' tuple
[bb7422a]	1010	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	1011	;
[51b73452]	1012
[1528a2c]	1013	qualifier_cast_list:
	1014	cast_modifier type_qualifier_name
	1015	\| cast_modifier MUTEX
	1016	\| qualifier_cast_list cast_modifier type_qualifier_name
	1017	\| qualifier_cast_list cast_modifier MUTEX
	1018	;
	1019
	1020	cast_modifier:
	1021	'-'
	1022	\| '+'
	1023	;
	1024
[994d080]	1025	exponential_expression:
[4d51835]	1026	cast_expression
[994d080]	1027	\| exponential_expression '\\' cast_expression
[bb7422a]	1028	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1029	;
	1030
	1031	multiplicative_expression:
	1032	exponential_expression
	1033	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1034	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1035	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1036	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1037	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1038	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1039	;
[51b73452]	1040
	1041	additive_expression:
[4d51835]	1042	multiplicative_expression
	1043	\| additive_expression '+' multiplicative_expression
[bb7422a]	1044	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1045	\| additive_expression '-' multiplicative_expression
[bb7422a]	1046	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1047	;
[51b73452]	1048
	1049	shift_expression:
[4d51835]	1050	additive_expression
	1051	\| shift_expression LS additive_expression
[bb7422a]	1052	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1053	\| shift_expression RS additive_expression
[bb7422a]	1054	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1055	;
[51b73452]	1056
	1057	relational_expression:
[4d51835]	1058	shift_expression
	1059	\| relational_expression '<' shift_expression
[bb7422a]	1060	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1061	\| relational_expression '>' shift_expression
[bb7422a]	1062	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1063	\| relational_expression LE shift_expression
[bb7422a]	1064	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1065	\| relational_expression GE shift_expression
[bb7422a]	1066	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1067	;
[51b73452]	1068
	1069	equality_expression:
[4d51835]	1070	relational_expression
	1071	\| equality_expression EQ relational_expression
[bb7422a]	1072	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1073	\| equality_expression NE relational_expression
[bb7422a]	1074	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1075	;
[51b73452]	1076
	1077	AND_expression:
[4d51835]	1078	equality_expression
	1079	\| AND_expression '&' equality_expression
[bb7422a]	1080	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1081	;
[51b73452]	1082
	1083	exclusive_OR_expression:
[4d51835]	1084	AND_expression
	1085	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1086	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1087	;
[51b73452]	1088
	1089	inclusive_OR_expression:
[4d51835]	1090	exclusive_OR_expression
	1091	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1092	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1093	;
[51b73452]	1094
	1095	logical_AND_expression:
[4d51835]	1096	inclusive_OR_expression
	1097	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1098	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1099	;
[51b73452]	1100
	1101	logical_OR_expression:
[4d51835]	1102	logical_AND_expression
	1103	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1104	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1105	;
[51b73452]	1106
	1107	conditional_expression:
[4d51835]	1108	logical_OR_expression
	1109	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1110	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1111	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1112	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1113	;
[51b73452]	1114
	1115	constant_expression:
[4d51835]	1116	conditional_expression
	1117	;
[51b73452]	1118
	1119	assignment_expression:
[4d51835]	1120	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1121	conditional_expression
	1122	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1123	{
[25744d2]	1124	// if ( $2 == OperKinds::AtAssn ) {
	1125	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1126	// } else {
[bb7422a]	1127	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1128	// } // if
[9867cdb]	1129	}
[7fdb94e1]	1130	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1131	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1132	;
[51b73452]	1133
	1134	assignment_expression_opt:
[4d51835]	1135	// empty
[d1625f8]	1136	{ $$ = nullptr; }
[4d51835]	1137	\| assignment_expression
	1138	;
[b87a5ed]	1139
[9706554]	1140	assignment_operator:
[f9c3100]	1141	simple_assignment_operator
	1142	\| compound_assignment_operator
	1143	;
	1144
	1145	simple_assignment_operator:
[d9e2280]	1146	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1147	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1148	;
	1149
	1150	compound_assignment_operator:
	1151	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1152	\| MULTassign { $$ = OperKinds::MulAssn; }
	1153	\| DIVassign { $$ = OperKinds::DivAssn; }
	1154	\| MODassign { $$ = OperKinds::ModAssn; }
	1155	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1156	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1157	\| LSassign { $$ = OperKinds::LSAssn; }
	1158	\| RSassign { $$ = OperKinds::RSAssn; }
	1159	\| ANDassign { $$ = OperKinds::AndAssn; }
	1160	\| ERassign { $$ = OperKinds::ERAssn; }
	1161	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1162	;
[9706554]	1163
[b87a5ed]	1164	tuple: // CFA, tuple
[de62360d]	1165	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1166	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1167	// '[' ']'
	1168	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1169	// \| '[' push assignment_expression pop ']'
[1b29996]	1170	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1171	'[' ',' tuple_expression_list ']'
[b93c544]	1172	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1173	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1174	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1175	;
[51b73452]	1176
	1177	tuple_expression_list:
[0a6d8204]	1178	assignment_expression
	1179	\| '@' // CFA
	1180	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1181	\| tuple_expression_list ',' assignment_expression
[b93c544]	1182	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1183	\| tuple_expression_list ',' '@'
	1184	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1185	;
[51b73452]	1186
	1187	comma_expression:
[4d51835]	1188	assignment_expression
[9706554]	1189	\| comma_expression ',' assignment_expression
[bb7422a]	1190	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1191	;
[51b73452]	1192
	1193	comma_expression_opt:
[4d51835]	1194	// empty
[58dd019]	1195	{ $$ = nullptr; }
[4d51835]	1196	\| comma_expression
	1197	;
[51b73452]	1198
[e1d66c84]	1199	// ************************ STATEMENTS *****************************
[51b73452]	1200
	1201	statement:
[4d51835]	1202	labeled_statement
	1203	\| compound_statement
[c0a33d2]	1204	\| expression_statement
[4d51835]	1205	\| selection_statement
	1206	\| iteration_statement
	1207	\| jump_statement
[8b47e50]	1208	\| with_statement
[b6b3c42]	1209	\| mutex_statement
[5b2edbc]	1210	\| waitfor_statement
[9fd9d015]	1211	\| waituntil_statement
[11ab0b4a]	1212	\| corun_statement
	1213	\| cofor_statement
[4d51835]	1214	\| exception_statement
[2a8427c6]	1215	\| enable_disable_statement
[fae90d5f]	1216	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1217	\| asm_statement
[61fc4f6]	1218	\| DIRECTIVE
[bb7422a]	1219	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1220	;
[51b73452]	1221
	1222	labeled_statement:
[033ff37]	1223	// labels cannot be identifiers 0 or 1
[44a81853]	1224	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1225	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1226	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1227	{
[b1f2007d]	1228	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1229	"where a declaration, case, or default is not a statement.\n"
	1230	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1231	$$ = nullptr;
	1232	}
[4d51835]	1233	;
[51b73452]	1234
	1235	compound_statement:
[4d51835]	1236	'{' '}'
[bb7422a]	1237	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1238	\| '{' push
[5e25953]	1239	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1240	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1241	pop '}'
[bb7422a]	1242	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1243	;
[b87a5ed]	1244
[9bd6105]	1245	statement_decl_list: // C99
	1246	statement_decl
[35718a9]	1247	\| statement_decl_list statement_decl
[6d01d89]	1248	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1249	;
[51b73452]	1250
[9bd6105]	1251	statement_decl:
[4d51835]	1252	declaration // CFA, new & old style declarations
[e82aa9df]	1253	{ $$ = new StatementNode( $1 ); }
[4d51835]	1254	\| EXTENSION declaration // GCC
[6d01d89]	1255	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1256	\| function_definition
[e82aa9df]	1257	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1258	\| EXTENSION function_definition // GCC
[6d01d89]	1259	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1260	\| statement
[4d51835]	1261	;
[51b73452]	1262
[9bd6105]	1263	statement_list_nodecl:
[4d51835]	1264	statement
[9bd6105]	1265	\| statement_list_nodecl statement
[6d01d89]	1266	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1267	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1268	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1269	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1270	;
[51b73452]	1271
	1272	expression_statement:
[4d51835]	1273	comma_expression_opt ';'
[bb7422a]	1274	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1275	;
[51b73452]	1276
[7e13b11]	1277	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1278	// parenthesis:
	1279	//
[446740a]	1280	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1281	//
[7e13b11]	1282	// switch O { }
	1283	//
	1284	// O{} => object-constructor for conditional, switch body ???
	1285	// O{} => O for conditional followed by switch body
	1286	//
	1287	// C++ has this problem, as it has the same constructor syntax.
	1288	//
	1289	// switch sizeof ( T ) { }
	1290	//
	1291	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1292	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1293	//
	1294	// Note the two grammar rules for sizeof (alignof)
	1295	//
	1296	// \| SIZEOF unary_expression
	1297	// \| SIZEOF '(' type_no_function ')'
	1298	//
	1299	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1300
[51b73452]	1301	selection_statement:
[647e2ea]	1302	IF '(' conditional_declaration ')' statement %prec THEN
	1303	// explicitly deal with the shift/reduce conflict on if/else
	1304	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1305	\| IF '(' conditional_declaration ')' statement ELSE statement
	1306	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1307	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1308	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1309	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1310	{
[bb7422a]	1311	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1312	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1313	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1314	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1315	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1316	// statement.
[b93c544]	1317	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1318	}
[0442f93f]	1319	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1320	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1321	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1322	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1323	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1324	{
[bb7422a]	1325	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1326	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1327	}
[0442f93f]	1328	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1329	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1330	;
[b87a5ed]	1331
[473d1da0]	1332	conditional_declaration:
[35718a9]	1333	comma_expression
[473d1da0]	1334	{ $$ = new CondCtl( nullptr, $1 ); }
[35718a9]	1335	\| c_declaration // no semi-colon
[473d1da0]	1336	{ $$ = new CondCtl( $1, nullptr ); }
[35718a9]	1337	\| cfa_declaration // no semi-colon
[473d1da0]	1338	{ $$ = new CondCtl( $1, nullptr ); }
[6d49ea3]	1339	\| declaration comma_expression // semi-colon separated
[473d1da0]	1340	{ $$ = new CondCtl( $1, $2 ); }
[9fd9d015]	1341	;
[936e9f4]	1342
[de62360d]	1343	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1344	// clause allows a list of values and subranges.
[b87a5ed]	1345
	1346	case_value: // CFA
[4d51835]	1347	constant_expression { $$ = $1; }
	1348	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1349	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1350	\| subrange // CFA, subrange
	1351	;
[b87a5ed]	1352
	1353	case_value_list: // CFA
[6611177]	1354	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1355	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1356	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1357	;
[b87a5ed]	1358
	1359	case_label: // CFA
[0442f93f]	1360	CASE error // invalid syntax rule
[253d0b4]	1361	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1362	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1363	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1364	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1365	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1366	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1367	\| DEFAULT error // invalid syntax rule
[253d0b4]	1368	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1369	;
[b87a5ed]	1370
	1371	case_label_list: // CFA
[4d51835]	1372	case_label
[6611177]	1373	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1374	;
[b87a5ed]	1375
	1376	case_clause: // CFA
[bb7422a]	1377	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1378	;
[b87a5ed]	1379
	1380	switch_clause_list_opt: // CFA
[4d51835]	1381	// empty
[58dd019]	1382	{ $$ = nullptr; }
[4d51835]	1383	\| switch_clause_list
	1384	;
[b87a5ed]	1385
	1386	switch_clause_list: // CFA
[9bd6105]	1387	case_label_list statement_list_nodecl
[bb7422a]	1388	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1389	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1390	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1391	;
[b87a5ed]	1392
[51b73452]	1393	iteration_statement:
[5695645]	1394	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[bb7422a]	1395	{ $$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1396	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1397	{
[bb7422a]	1398	$$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1399	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1400	}
[473d1da0]	1401	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1402	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1403	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1404	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1405	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1406	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1407	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1408	{
[bb7422a]	1409	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1410	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1411	}
	1412	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1413	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1414	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1415	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1416	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1417	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1418	\| FOR '(' ')' statement ELSE statement // CFA
	1419	{
[bb7422a]	1420	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1421	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1422	}
[efc8f3e]	1423	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1424	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1425	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1426	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1427	;
	1428
[6d01d89]	1429	for_control_expression_list:
	1430	for_control_expression
	1431	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1432	// ForCtrl + ForCtrl:
	1433	// init + init => multiple declaration statements that are hoisted
	1434	// condition + condition => (expression) && (expression)
	1435	// change + change => (expression), (expression)
	1436	{
	1437	$1->init->set_last( $3->init );
	1438	if ( $1->condition ) {
	1439	if ( $3->condition ) {
[bb7422a]	1440	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1441	} // if
	1442	} else $1->condition = $3->condition;
	1443	if ( $1->change ) {
	1444	if ( $3->change ) {
[bb7422a]	1445	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1446	} // if
	1447	} else $1->change = $3->change;
	1448	$$ = $1;
	1449	}
[6d01d89]	1450	;
	1451
[51b73452]	1452	for_control_expression:
[6d01d89]	1453	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1454	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1455	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1456	{
[253d0b4]	1457	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1458	}
[6d01d89]	1459	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1460	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1461
[aa122e9]	1462	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1463	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1464	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1465	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1466
[aa122e9]	1467	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1468	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1469	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1470	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1471
[aa122e9]	1472	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1473	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1474	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1475	{
[4fee301]	1476	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1477	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1478	}
[aa122e9]	1479	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1480	{
[4fee301]	1481	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1482	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1483	}
[aa122e9]	1484	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1485	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1486	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1487	{
[4fee301]	1488	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1489	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1490	}
[aa122e9]	1491	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1492	{
[4fee301]	1493	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1494	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1495	}
[65ef0cd]	1496	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1497	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1498	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1499	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1500	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1501	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1502	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1503	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1504	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1505	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1506
[089b39e1]	1507	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1508	// permissive allows for a better error message from forCtrl.
[f1aeede]	1509	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1510	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1511	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1512	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1513
[d78c238]	1514	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1515	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1516	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1517	{
[4fee301]	1518	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1519	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1520	}
[52be5948]	1521	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1522	{
[4fee301]	1523	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1524	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1525	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1526	}
[65ef0cd]	1527	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[253d0b4]	1528	{ SemanticError( yylloc, "illegal syntax, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1529
	1530	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1531	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1532	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1533	{
[4fee301]	1534	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1535	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1536	}
[52be5948]	1537	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1538	{
[4fee301]	1539	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1540	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1541	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1542	}
	1543	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1544	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1545	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1546	{
[4fee301]	1547	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1548	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1549	}
[52be5948]	1550	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1551	{
[4fee301]	1552	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1553	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1554	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1555	}
[dbedd71]	1556	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[253d0b4]	1557	{ SemanticError( yylloc, "illegal syntax, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1558
	1559	\| declaration comma_expression // CFA
[bb7422a]	1560	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1561	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1562	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1563
[d78c238]	1564	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1565	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1566	\| declaration '@' updowneq comma_expression // CFA
	1567	{
[4fee301]	1568	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1569	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1570	}
[52be5948]	1571	\| declaration comma_expression updowneq '@' // CFA
	1572	{
[4fee301]	1573	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1574	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1575	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1576	}
[d78c238]	1577
	1578	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1579	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1580	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1581	{
[4fee301]	1582	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1583	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1584	}
[52be5948]	1585	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1586	{
[4fee301]	1587	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1588	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1589	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1590	}
	1591	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1592	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1593	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1594	{
[4fee301]	1595	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1596	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1597	}
[52be5948]	1598	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1599	{
[4fee301]	1600	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1601	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1602	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1603	}
[65ef0cd]	1604	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[253d0b4]	1605	{ SemanticError( yylloc, "illegal syntax, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1606
[a8ced63]	1607	\| comma_expression ';' enum_key // CFA, enum type
[ca33b15]	1608	{
[55ba259e]	1609	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->buildType() ) ) );
[ca33b15]	1610	}
[a8ced63]	1611	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1612	{
[55ba259e]	1613	if ( $3 == OperKinds::GThan ) {
	1614	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1615	$3 = OperKinds::GEThan;
	1616	} // if
[089b39e1]	1617	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->buildType() ) ) );
[d78c238]	1618	}
[9fd9d015]	1619	;
[98337569]	1620
[a8ced63]	1621	enum_key:
	1622	type_name
	1623	{ $$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false ); }
	1624	\| ENUM identifier
	1625	{ $$ = DeclarationNode::newEnum( $2, nullptr, false, false ); }
	1626	\| ENUM type_name
	1627	{ $$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false ); }
	1628	;
	1629
[55ba259e]	1630	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1631	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1632	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1633	downupdowneq:
	1634	ErangeDown
	1635	{ $$ = OperKinds::GThan; }
	1636	\| ErangeUpEq
	1637	{ $$ = OperKinds::LEThan; }
	1638	\| ErangeDownEq
	1639	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1640	;
[51b73452]	1641
[d78c238]	1642	updown:
[cc22003]	1643	'~'
	1644	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1645	\| ErangeDown
	1646	{ $$ = OperKinds::GThan; }
[9fd9d015]	1647	;
[d78c238]	1648
	1649	updowneq:
	1650	updown
	1651	\| ErangeUpEq
	1652	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1653	\| ErangeDownEq
	1654	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1655	;
[cc22003]	1656
[51b73452]	1657	jump_statement:
[44a81853]	1658	GOTO identifier_or_type_name ';'
[bb7422a]	1659	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1660	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1661	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1662	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1663	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1664	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1665	\| fall_through_name ';' // CFA
[bb7422a]	1666	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1667	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1668	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1669	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1670	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1671	\| CONTINUE ';'
[de62360d]	1672	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1673	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1674	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1675	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1676	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1677	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1678	\| BREAK ';'
[de62360d]	1679	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1680	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1681	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1682	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1683	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1684	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1685	\| RETURN comma_expression_opt ';'
[bb7422a]	1686	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1687	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1688	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1689	\| SUSPEND ';'
[bb7422a]	1690	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1691	\| SUSPEND compound_statement
[bb7422a]	1692	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1693	\| SUSPEND COROUTINE ';'
[bb7422a]	1694	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1695	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1696	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1697	\| SUSPEND GENERATOR ';'
[bb7422a]	1698	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1699	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1700	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1701	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1702	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1703	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1704	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1705	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1706	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1707	;
[51b73452]	1708
[6a276a0]	1709	fall_through_name: // CFA
	1710	FALLTHRU
	1711	\| FALLTHROUGH
	1712	;
	1713
[8b47e50]	1714	with_statement:
[e78966e]	1715	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1716	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1717	;
	1718
[bf20567]	1719	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1720	mutex_statement:
[bf20567]	1721	MUTEX '(' argument_expression_list_opt ')' statement
	1722	{
[253d0b4]	1723	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1724	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1725	}
[b6b3c42]	1726	;
	1727
[51d6d6a]	1728	when_clause:
[6a276a0]	1729	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1730	;
	1731
[5b2edbc]	1732	when_clause_opt:
	1733	// empty
[135b431]	1734	{ $$ = nullptr; }
[51d6d6a]	1735	\| when_clause
[5b2edbc]	1736	;
	1737
[4a063df]	1738	cast_expression_list:
	1739	cast_expression
	1740	\| cast_expression_list ',' cast_expression
[a491a3c]	1741	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1742	;
	1743
	1744	timeout:
[9fd9d015]	1745	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1746	;
	1747
[9fd9d015]	1748	wor:
	1749	OROR
	1750	\| WOR
	1751
	1752	waitfor:
	1753	WAITFOR '(' cast_expression ')'
	1754	{ $$ = $3; }
	1755	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1756	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1757	;
	1758
[9fd9d015]	1759	wor_waitfor_clause:
[51d6d6a]	1760	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1761	// Called first: create header for WaitForStmt.
[bb7422a]	1762	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1763	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1764	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1765	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1766	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1767	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1768	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1769	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1770	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1771	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1772	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1773	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1774	;
	1775
	1776	waitfor_statement:
[9fd9d015]	1777	wor_waitfor_clause %prec THEN
	1778	{ $$ = new StatementNode( $1 ); }
	1779	;
	1780
	1781	wand:
	1782	ANDAND
	1783	\| WAND
	1784	;
	1785
	1786	waituntil:
[04c78215]	1787	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1788	{ $$ = $3; }
	1789	;
	1790
	1791	waituntil_clause:
	1792	when_clause_opt waituntil statement
[c86b08d]	1793	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1794	\| '(' wor_waituntil_clause ')'
[c86b08d]	1795	{ $$ = $2; }
[9fd9d015]	1796	;
	1797
	1798	wand_waituntil_clause:
	1799	waituntil_clause %prec THEN
[c86b08d]	1800	{ $$ = $1; }
[9fd9d015]	1801	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1802	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1803	;
	1804
	1805	wor_waituntil_clause:
	1806	wand_waituntil_clause
[c86b08d]	1807	{ $$ = $1; }
[70056ed]	1808	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1809	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1810	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1811	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1812	;
	1813
	1814	waituntil_statement:
	1815	wor_waituntil_clause %prec THEN
[f259682]	1816	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1817	;
	1818
[11ab0b4a]	1819	corun_statement:
	1820	CORUN statement
[eb779d5]	1821	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1822	;
	1823
	1824	cofor_statement:
	1825	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1826	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1827	;
	1828
[51b73452]	1829	exception_statement:
[bb7422a]	1830	TRY compound_statement handler_clause %prec THEN
	1831	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1832	\| TRY compound_statement finally_clause
[bb7422a]	1833	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1834	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1835	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1836	;
[51b73452]	1837
	1838	handler_clause:
[098f7ff]	1839	handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1840	{ $$ = new ClauseNode( build_catch( yylloc, $1, $4, $6, $8 ) ); }
[098f7ff]	1841	\| handler_clause handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1842	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $5, $7, $9 ) ) ); }
[994d080]	1843	;
	1844
	1845	handler_predicate_opt:
[7fdb94e1]	1846	// empty
[cbce272]	1847	{ $$ = nullptr; }
[6a276a0]	1848	\| ';' conditional_expression { $$ = $2; }
[307a732]	1849	;
	1850
	1851	handler_key:
[bb7422a]	1852	CATCH { $$ = ast::Terminate; }
	1853	\| RECOVER { $$ = ast::Terminate; }
	1854	\| CATCHRESUME { $$ = ast::Resume; }
	1855	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1856	;
[51b73452]	1857
	1858	finally_clause:
[6611177]	1859	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1860	;
[51b73452]	1861
	1862	exception_declaration:
[d0ffed1]	1863	// No SUE declaration in parameter list.
	1864	type_specifier_nobody
	1865	\| type_specifier_nobody declarator
[c0a33d2]	1866	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1867	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1868	{ $$ = $2->addType( $1 ); }
[033ff37]	1869	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1870	{ $$ = $1->addName( $2 ); }
[c0aa336]	1871	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1872	;
[51b73452]	1873
[2a8427c6]	1874	enable_disable_statement:
	1875	enable_disable_key identifier_list compound_statement
	1876	;
	1877
	1878	enable_disable_key:
	1879	ENABLE
	1880	\| DISABLE
	1881	;
	1882
[51b73452]	1883	asm_statement:
[ab57786]	1884	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1885	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1886	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1887	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1888	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1889	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1890	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1891	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1892	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1893	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1894	;
	1895
	1896	asm_volatile_opt: // GCC
	1897	// empty
	1898	{ $$ = false; }
	1899	\| VOLATILE
	1900	{ $$ = true; }
[4d51835]	1901	;
[b87a5ed]	1902
	1903	asm_operands_opt: // GCC
[4d51835]	1904	// empty
[58dd019]	1905	{ $$ = nullptr; } // use default argument
[4d51835]	1906	\| asm_operands_list
	1907	;
[b87a5ed]	1908
	1909	asm_operands_list: // GCC
[4d51835]	1910	asm_operand
	1911	\| asm_operands_list ',' asm_operand
[b93c544]	1912	{ $$ = $1->set_last( $3 ); }
[4d51835]	1913	;
[b87a5ed]	1914
	1915	asm_operand: // GCC
[ab57786]	1916	string_literal '(' constant_expression ')'
[32d6fdc]	1917	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1918	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1919	{
[32d6fdc]	1920	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1921	delete $2.str;
	1922	}
[7f5566b]	1923	;
	1924
[4e06c1e]	1925	asm_clobbers_list_opt: // GCC
[7f5566b]	1926	// empty
[58dd019]	1927	{ $$ = nullptr; } // use default argument
[ab57786]	1928	\| string_literal
[32d6fdc]	1929	{ $$ = $1; }
[ab57786]	1930	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1931	{ $$ = $1->set_last( $3 ); }
[4d51835]	1932	;
[b87a5ed]	1933
[7f5566b]	1934	label_list:
[033ff37]	1935	identifier
[ab57786]	1936	{
[bb7422a]	1937	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1938	delete $1; // allocated by lexer
	1939	}
[033ff37]	1940	\| label_list ',' identifier
[ab57786]	1941	{
[bb7422a]	1942	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1943	delete $3; // allocated by lexer
	1944	}
[4d51835]	1945	;
[51b73452]	1946
[e1d66c84]	1947	// **************************** DECLARATIONS *******************************
[51b73452]	1948
[b87a5ed]	1949	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1950	// empty
[58dd019]	1951	{ $$ = nullptr; }
[4d51835]	1952	\| declaration_list
	1953	;
[51b73452]	1954
	1955	declaration_list:
[4d51835]	1956	declaration
[647e2ea]	1957	\| declaration_list declaration
	1958	{ $$ = $1->set_last( $2 ); }
[4d51835]	1959	;
[51b73452]	1960
[407bde5]	1961	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1962	// empty
[58dd019]	1963	{ $$ = nullptr; }
[35718a9]	1964	\| KR_parameter_list
[4d51835]	1965	;
[51b73452]	1966
[35718a9]	1967	KR_parameter_list:
[c25f16b]	1968	c_declaration ';'
	1969	{ $$ = $1; }
	1970	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1971	{ $$ = $1->set_last( $2 ); }
[4d51835]	1972	;
[b87a5ed]	1973
[51b1202]	1974	local_label_declaration_opt: // GCC, local label
[4d51835]	1975	// empty
[51b1202]	1976	\| local_label_declaration_list
[4d51835]	1977	;
[b87a5ed]	1978
[51b1202]	1979	local_label_declaration_list: // GCC, local label
	1980	LABEL local_label_list ';'
	1981	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1982	;
[b87a5ed]	1983
[51b1202]	1984	local_label_list: // GCC, local label
[033ff37]	1985	identifier_or_type_name
	1986	\| local_label_list ',' identifier_or_type_name
[4d51835]	1987	;
[b87a5ed]	1988
[936e9f4]	1989	declaration: // old & new style declarations
[35718a9]	1990	c_declaration ';'
	1991	\| cfa_declaration ';' // CFA
[b47b827]	1992	\| static_assert // C11
[4d51835]	1993	;
[b87a5ed]	1994
[b9be000b]	1995	static_assert:
	1996	STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11
[32d6fdc]	1997	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b47b827]	1998	\| STATICASSERT '(' constant_expression ')' ';' // CFA
[bb7422a]	1999	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2000
[de62360d]	2001	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2002	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2003	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2004	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2005	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2006	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2007	//
[b87a5ed]	2008	// CFA C
	2009	// [10] int x; int x[10]; // array of 10 integers
	2010	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2011
[c0aa336]	2012	cfa_declaration: // CFA
[4cc585b]	2013	cfa_variable_declaration
	2014	\| cfa_typedef_declaration
	2015	\| cfa_function_declaration
	2016	\| type_declaring_list
[2501ae5]	2017	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2018	\| trait_specifier
[4d51835]	2019	;
[b87a5ed]	2020
[c0aa336]	2021	cfa_variable_declaration: // CFA
	2022	cfa_variable_specifier initializer_opt
[7fdb94e1]	2023	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2024	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2025	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2026	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2027	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2028	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2029	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2030	;
[b87a5ed]	2031
[c0aa336]	2032	cfa_variable_specifier: // CFA
[de62360d]	2033	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2034	// storage-class
[c0aa336]	2035	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2036	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2037	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2038	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2039	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2040	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2041
	2042	// [ int s, int t ]; // declare s and t
	2043	// [ int, int ] f();
	2044	// [] g( int );
	2045	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2046	// g( x + y );
	2047	\| cfa_function_return asm_name_opt
	2048	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2049	\| type_qualifier_list cfa_function_return asm_name_opt
	2050	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2051	;
[b87a5ed]	2052
[c0aa336]	2053	cfa_function_declaration: // CFA
	2054	cfa_function_specifier
	2055	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2056	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2057	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2058	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2059	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2060	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2061	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2062	{
[481115f]	2063	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2064	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2065	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2066	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2067	}
	2068	;
[b87a5ed]	2069
[c0aa336]	2070	cfa_function_specifier: // CFA
[647e2ea]	2071	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2072	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2073	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2074	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2075	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2076	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2077
[2871210]	2078	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2079	//
[647e2ea]	2080	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2081	// '[' ']' type_specifier
	2082	//
[2871210]	2083	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2084	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2085	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2086	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2087	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2088	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2089	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2090	;
[b87a5ed]	2091
[c0aa336]	2092	cfa_function_return: // CFA
[c0a33d2]	2093	'[' push cfa_parameter_list pop ']'
	2094	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2095	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2096	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2097	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2098	;
[b87a5ed]	2099
[c0aa336]	2100	cfa_typedef_declaration: // CFA
	2101	TYPEDEF cfa_variable_specifier
[4d51835]	2102	{
[71a422a]	2103	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2104	$$ = $2->addTypedef();
	2105	}
[c0aa336]	2106	\| TYPEDEF cfa_function_specifier
[4d51835]	2107	{
[71a422a]	2108	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2109	$$ = $2->addTypedef();
	2110	}
[647e2ea]	2111	\| cfa_typedef_declaration ',' identifier
[4d51835]	2112	{
[647e2ea]	2113	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2114	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2115	}
	2116	;
[b87a5ed]	2117
[de62360d]	2118	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2119	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2120
	2121	typedef_declaration:
[4d51835]	2122	TYPEDEF type_specifier declarator
	2123	{
[71a422a]	2124	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2125	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2126	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2127	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2128	}
[c25f16b]	2129	\| typedef_declaration ',' declarator
[4d51835]	2130	{
[c25f16b]	2131	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2132	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2133	}
[de62360d]	2134	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2135	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2136	\| type_specifier TYPEDEF declarator
[ac235a8]	2137	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2138	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2139	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2140	;
[b87a5ed]	2141
[721f17a]	2142	typedef_expression:
[25744d2]	2143	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2144	TYPEDEF identifier '=' assignment_expression
[4d51835]	2145	{
[ac235a8]	2146	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2147	}
[c25f16b]	2148	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2149	{
[ac235a8]	2150	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2151	}
	2152	;
[51b73452]	2153
[c0aa336]	2154	c_declaration:
[4cc585b]	2155	declaration_specifier declaring_list
[7fdb94e1]	2156	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2157	\| typedef_declaration
[25744d2]	2158	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2159	\| sue_declaration_specifier
[0bcd707]	2160	{
	2161	assert( $1->type );
[1a73dbb]	2162	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2163	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2164	}
	2165	// enums are never empty declarations because there must have at least one enumeration.
	2166	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2167	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2168	}
	2169	}
[4d51835]	2170	;
[51b73452]	2171
	2172	declaring_list:
[de62360d]	2173	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2174	// storage-class
[1f771fc]	2175	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2176	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2177	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2178	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2179
	2180	\| general_function_declarator asm_name_opt
	2181	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2182	\| general_function_declarator asm_name_opt '=' VOID
	2183	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2184
[4d51835]	2185	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2186	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2187	;
[b87a5ed]	2188
[1f771fc]	2189	general_function_declarator:
	2190	function_type_redeclarator
	2191	\| function_declarator
	2192	;
	2193
[b87a5ed]	2194	declaration_specifier: // type specifier + storage class
[4d51835]	2195	basic_declaration_specifier
[84d58c5]	2196	\| type_declaration_specifier
[79a6b17]	2197	\| sue_declaration_specifier
[0442f93f]	2198	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2199	{
[253d0b4]	2200	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2201	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2202	$$ = nullptr;
	2203	}
	2204	;
	2205
	2206	invalid_types:
	2207	aggregate_key
	2208	\| basic_type_name
	2209	\| indirect_type
[4d51835]	2210	;
[b87a5ed]	2211
[d0ffed1]	2212	declaration_specifier_nobody: // type specifier + storage class - {...}
	2213	// Preclude SUE declarations in restricted scopes:
	2214	//
	2215	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2216	//
	2217	// because it is impossible to call f due to name equivalence.
	2218	basic_declaration_specifier
	2219	\| sue_declaration_specifier_nobody
[84d58c5]	2220	\| type_declaration_specifier
[d0ffed1]	2221	;
	2222
	2223	type_specifier: // type specifier
[4d51835]	2224	basic_type_specifier
	2225	\| sue_type_specifier
[84d58c5]	2226	\| type_type_specifier
[4d51835]	2227	;
[b87a5ed]	2228
[d0ffed1]	2229	type_specifier_nobody: // type specifier - {...}
	2230	// Preclude SUE declarations in restricted scopes:
	2231	//
	2232	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2233	//
	2234	// because it is impossible to call f due to name equivalence.
	2235	basic_type_specifier
	2236	\| sue_type_specifier_nobody
[84d58c5]	2237	\| type_type_specifier
[d0ffed1]	2238	;
	2239
[b87a5ed]	2240	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2241	// empty
[58dd019]	2242	{ $$ = nullptr; }
[4d51835]	2243	\| type_qualifier_list
	2244	;
[51b73452]	2245
	2246	type_qualifier_list:
[de62360d]	2247	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2248	//
[de62360d]	2249	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2250	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2251	// appeared only once.
[4d51835]	2252	type_qualifier
	2253	\| type_qualifier_list type_qualifier
	2254	{ $$ = $1->addQualifiers( $2 ); }
	2255	;
[51b73452]	2256
	2257	type_qualifier:
[4d51835]	2258	type_qualifier_name
[6cef439]	2259	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2260	\| attribute // trick handles most attribute locations
[4d51835]	2261	;
[51b73452]	2262
	2263	type_qualifier_name:
[4d51835]	2264	CONST
[6cef439]	2265	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2266	\| RESTRICT
[6cef439]	2267	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2268	\| VOLATILE
[6cef439]	2269	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2270	\| ATOMIC
[6cef439]	2271	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2272
[446740a]	2273	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2274	//
	2275	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2276	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2277	\| forall
[6cef439]	2278	{ $$ = build_forall( $1 ); }
[a16a7ec]	2279	;
	2280
	2281	forall:
[35718a9]	2282	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2283	{ $$ = $3; }
[4d51835]	2284	;
[51b73452]	2285
	2286	declaration_qualifier_list:
[4d51835]	2287	storage_class_list
[de62360d]	2288	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2289	{ $$ = $1->addQualifiers( $2 ); }
	2290	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2291	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2292	;
[51b73452]	2293
	2294	storage_class_list:
[de62360d]	2295	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2296	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2297	//
[de62360d]	2298	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2299	// specifiers in a declaration.
[4d51835]	2300	storage_class
	2301	\| storage_class_list storage_class
	2302	{ $$ = $1->addQualifiers( $2 ); }
	2303	;
[51b73452]	2304
	2305	storage_class:
[4d51835]	2306	EXTERN
[36e6f10]	2307	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2308	\| STATIC
[36e6f10]	2309	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2310	\| AUTO
[36e6f10]	2311	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2312	\| REGISTER
[36e6f10]	2313	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2314	\| THREADLOCALGCC // GCC
[36e6f10]	2315	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2316	\| THREADLOCALC11 // C11
[36e6f10]	2317	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2318	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2319	\| INLINE // C99
[36e6f10]	2320	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2321	\| FORTRAN // C99
[36e6f10]	2322	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2323	\| NORETURN // C11
[36e6f10]	2324	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2325	;
[51b73452]	2326
	2327	basic_type_name:
[6cef439]	2328	basic_type_name_type
	2329	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2330	;
	2331
	2332	// Just an intermediate value for conversion.
	2333	basic_type_name_type:
[201aeb9]	2334	VOID
[e048ece]	2335	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2336	\| BOOL // C99
[e048ece]	2337	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2338	\| CHAR
[e048ece]	2339	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2340	\| INT
[e048ece]	2341	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2342	\| INT128
[e048ece]	2343	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2344	\| UINT128
[e048ece]	2345	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2346	\| FLOAT
[e048ece]	2347	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2348	\| DOUBLE
[e048ece]	2349	{ $$ = build_basic_type( TypeData::Double ); }
[e15853c]	2350	\| uuFLOAT80
[e048ece]	2351	{ $$ = build_basic_type( TypeData::uuFloat80 ); }
[e15853c]	2352	\| uuFLOAT128
[e048ece]	2353	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[e15853c]	2354	\| uFLOAT16
[e048ece]	2355	{ $$ = build_basic_type( TypeData::uFloat16 ); }
[e15853c]	2356	\| uFLOAT32
[e048ece]	2357	{ $$ = build_basic_type( TypeData::uFloat32 ); }
[e15853c]	2358	\| uFLOAT32X
[e048ece]	2359	{ $$ = build_basic_type( TypeData::uFloat32x ); }
[e15853c]	2360	\| uFLOAT64
[e048ece]	2361	{ $$ = build_basic_type( TypeData::uFloat64 ); }
[e15853c]	2362	\| uFLOAT64X
[e048ece]	2363	{ $$ = build_basic_type( TypeData::uFloat64x ); }
[e15853c]	2364	\| uFLOAT128
[e048ece]	2365	{ $$ = build_basic_type( TypeData::uFloat128 ); }
[15f769c]	2366	\| DECIMAL32
	2367	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2368	\| DECIMAL64
	2369	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2370	\| DECIMAL128
	2371	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2372	\| COMPLEX // C99
[e048ece]	2373	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2374	\| IMAGINARY // C99
[e048ece]	2375	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2376	\| SIGNED
[e048ece]	2377	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2378	\| UNSIGNED
[e048ece]	2379	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2380	\| SHORT
[e048ece]	2381	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2382	\| LONG
[e048ece]	2383	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2384	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2385	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2386	\| AUTO_TYPE
[e048ece]	2387	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2388	\| vtable
	2389	;
	2390
	2391	vtable_opt:
	2392	// empty
	2393	{ $$ = nullptr; }
[9380add]	2394	\| vtable
[1f652a7]	2395	;
	2396
	2397	vtable:
[8f6f3729]	2398	VTABLE '(' type_name ')' default_opt
[6cef439]	2399	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2400	;
	2401
	2402	default_opt:
	2403	// empty
	2404	{ $$ = nullptr; }
	2405	\| DEFAULT
	2406	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2407	;
[51b73452]	2408
	2409	basic_declaration_specifier:
[4d51835]	2410	// A semantic check is necessary for conflicting storage classes.
	2411	basic_type_specifier
	2412	\| declaration_qualifier_list basic_type_specifier
	2413	{ $$ = $2->addQualifiers( $1 ); }
	2414	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2415	{ $$ = $1->addQualifiers( $2 ); }
	2416	\| basic_declaration_specifier storage_class type_qualifier_list
	2417	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2418	\| basic_declaration_specifier storage_class basic_type_specifier
	2419	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2420	;
[51b73452]	2421
	2422	basic_type_specifier:
[84d58c5]	2423	direct_type
[f38e7d7]	2424	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2425	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2426	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2427	;
[51b73452]	2428
[84d58c5]	2429	direct_type:
[4d51835]	2430	basic_type_name
	2431	\| type_qualifier_list basic_type_name
	2432	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2433	\| direct_type type_qualifier
[4d51835]	2434	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2435	\| direct_type basic_type_name
[4d51835]	2436	{ $$ = $1->addType( $2 ); }
	2437	;
[51b73452]	2438
[84d58c5]	2439	indirect_type:
[b6ad601]	2440	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2441	{ $$ = $3; }
[b6ad601]	2442	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2443	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2444	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2445	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2446	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2447	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2448	\| ZERO_T // CFA
[e048ece]	2449	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2450	\| ONE_T // CFA
[e048ece]	2451	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2452	;
[51b73452]	2453
[d0ffed1]	2454	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2455	sue_type_specifier
	2456	\| declaration_qualifier_list sue_type_specifier
	2457	{ $$ = $2->addQualifiers( $1 ); }
	2458	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2459	{ $$ = $1->addQualifiers( $2 ); }
	2460	\| sue_declaration_specifier storage_class type_qualifier_list
	2461	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2462	;
[51b73452]	2463
[d0ffed1]	2464	sue_type_specifier: // struct, union, enum + type specifier
	2465	elaborated_type
[fdca7c6]	2466	\| type_qualifier_list
	2467	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2468	elaborated_type
	2469	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2470	\| sue_type_specifier type_qualifier
[284da8c]	2471	{
	2472	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2473	$$ = $1->addQualifiers( $2 );
	2474	}
[4d51835]	2475	;
[51b73452]	2476
[d0ffed1]	2477	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2478	sue_type_specifier_nobody
	2479	\| declaration_qualifier_list sue_type_specifier_nobody
	2480	{ $$ = $2->addQualifiers( $1 ); }
	2481	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2482	{ $$ = $1->addQualifiers( $2 ); }
	2483	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2484	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2485	;
	2486
	2487	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2488	elaborated_type_nobody
	2489	\| type_qualifier_list elaborated_type_nobody
	2490	{ $$ = $2->addQualifiers( $1 ); }
	2491	\| sue_type_specifier_nobody type_qualifier
	2492	{ $$ = $1->addQualifiers( $2 ); }
	2493	;
	2494
[84d58c5]	2495	type_declaration_specifier:
	2496	type_type_specifier
	2497	\| declaration_qualifier_list type_type_specifier
[4d51835]	2498	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2499	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2500	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2501	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2502	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2503	;
[b87a5ed]	2504
[84d58c5]	2505	type_type_specifier: // typedef types
	2506	type_name
[6cef439]	2507	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2508	\| type_qualifier_list type_name
[6cef439]	2509	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2510	\| type_type_specifier type_qualifier
	2511	{ $$ = $1->addQualifiers( $2 ); }
	2512	;
	2513
	2514	type_name:
[4d51835]	2515	TYPEDEFname
[6cef439]	2516	{ $$ = build_typedef( $1 ); }
[84d58c5]	2517	\| '.' TYPEDEFname
[6cef439]	2518	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2519	\| type_name '.' TYPEDEFname
[6cef439]	2520	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2521	\| typegen_name
	2522	\| '.' typegen_name
[6cef439]	2523	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2524	\| type_name '.' typegen_name
[6cef439]	2525	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2526	;
	2527
	2528	typegen_name: // CFA
[65d6de4]	2529	TYPEGENname
[6cef439]	2530	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2531	\| TYPEGENname '(' ')'
[6cef439]	2532	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2533	\| TYPEGENname '(' type_list ')'
[6cef439]	2534	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2535	;
[51b73452]	2536
[d0ffed1]	2537	elaborated_type: // struct, union, enum
[c0aa336]	2538	aggregate_type
	2539	\| enum_type
[4d51835]	2540	;
[51b73452]	2541
[d0ffed1]	2542	elaborated_type_nobody: // struct, union, enum - {...}
	2543	aggregate_type_nobody
	2544	\| enum_type_nobody
	2545	;
	2546
[7e13b11]	2547	// ************************ AGGREGATE *****************************
	2548
[d0ffed1]	2549	aggregate_type: // struct, union
[fc20514]	2550	aggregate_key attribute_list_opt
	2551	{ forall = false; } // reset
	2552	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2553	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2554	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2555	{
[71a422a]	2556	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2557	forall = false; // reset
	2558	}
[284da8c]	2559	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2560	{
	2561	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2562	}
[f9c3100]	2563	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2564	{
[71a422a]	2565	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2566	forall = false; // reset
	2567	}
[284da8c]	2568	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2569	{
[6cef439]	2570	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2571	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2572	}
	2573	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2574	{
[71a422a]	2575	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2576	forall = false; // reset
	2577	}
	2578	'{' field_declaration_list_opt '}' type_parameters_opt
	2579	{
[6cef439]	2580	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2581	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2582	}
[d0ffed1]	2583	\| aggregate_type_nobody
	2584	;
	2585
[284da8c]	2586	type_parameters_opt:
	2587	// empty
	2588	{ $$ = nullptr; } %prec '}'
	2589	\| '(' type_list ')'
	2590	{ $$ = $2; }
	2591	;
	2592
[d0ffed1]	2593	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2594	aggregate_key attribute_list_opt identifier
[84d58c5]	2595	{
[71a422a]	2596	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2597	forall = false; // reset
[84d58c5]	2598	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2599	}
[73f04fd]	2600	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2601	{
[fc20514]	2602	forall = false; // reset
[65d6de4]	2603	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2604	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2605	// delete newFromTypeGen.
[6cef439]	2606	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2607	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2608	} else {
[6cef439]	2609	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2610	$3->symbolic.name = nullptr; // copied to $$
	2611	$3->symbolic.actuals = nullptr;
[9fa61f5]	2612	delete $3;
	2613	}
[65d6de4]	2614	}
[4d51835]	2615	;
[51b73452]	2616
	2617	aggregate_key:
[e307e12]	2618	aggregate_data
	2619	\| aggregate_control
	2620	;
	2621
	2622	aggregate_data:
[1f652a7]	2623	STRUCT vtable_opt
[bb7422a]	2624	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2625	\| UNION
[bb7422a]	2626	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2627	\| EXCEPTION // CFA
[bb7422a]	2628	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2629	;
	2630
	2631	aggregate_control: // CFA
[cbbd8fd7]	2632	MONITOR
[bb7422a]	2633	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2634	\| MUTEX STRUCT
[bb7422a]	2635	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2636	\| GENERATOR
[bb7422a]	2637	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2638	\| MUTEX GENERATOR
[bb7422a]	2639	{
	2640	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2641	$$ = ast::AggregateDecl::NoAggregate;
	2642	}
[d3bc0ad]	2643	\| COROUTINE
[bb7422a]	2644	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2645	\| MUTEX COROUTINE
[bb7422a]	2646	{
	2647	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2648	$$ = ast::AggregateDecl::NoAggregate;
	2649	}
[d3bc0ad]	2650	\| THREAD
[bb7422a]	2651	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2652	\| MUTEX THREAD
[bb7422a]	2653	{
	2654	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2655	$$ = ast::AggregateDecl::NoAggregate;
	2656	}
[4d51835]	2657	;
[51b73452]	2658
[7fdb94e1]	2659	field_declaration_list_opt:
[5d125e4]	2660	// empty
[58dd019]	2661	{ $$ = nullptr; }
[7fdb94e1]	2662	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2663	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2664	;
[51b73452]	2665
	2666	field_declaration:
[679e644]	2667	type_specifier field_declaring_list_opt ';'
[d8454b9]	2668	{
	2669	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2670	$$ = fieldDecl( $1, $2 );
	2671	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2672	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2673	// printf( "\tattr %s\n", attr->name.c_str() );
	2674	// } // for
	2675	}
[0442f93f]	2676	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2677	{
[253d0b4]	2678	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2679	$$ = nullptr;
	2680	}
[679e644]	2681	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2682	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2683	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2684	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2685	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2686	{
[dea36ee]	2687	if ( ! $3 ) { // field declarator ?
	2688	$3 = DeclarationNode::newName( nullptr );
	2689	} // if
[679a260]	2690	$3->inLine = true;
[679e644]	2691	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2692	distInl( $3 );
[8f91c9ae]	2693	}
[e307e12]	2694	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2695	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2696	\| typedef_declaration ';' // CFA
	2697	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2698	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2699	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2700	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2701	{ $$ = $2; } // mark all fields in list
[46fa473]	2702	\| cfa_typedef_declaration ';' // CFA
[b47b827]	2703	\| static_assert // C11
[4d51835]	2704	;
[b87a5ed]	2705
[679e644]	2706	field_declaring_list_opt:
	2707	// empty
	2708	{ $$ = nullptr; }
[12f1156]	2709	\| field_declarator
	2710	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2711	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2712	;
[51b73452]	2713
[679e644]	2714	field_declarator:
[e07caa2]	2715	bit_subrange_size // C special case, no field name
[4d51835]	2716	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2717	\| variable_declarator bit_subrange_size_opt
[679e644]	2718	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2719	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2720	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2721	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2722	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2723	\| function_type_redeclarator bit_subrange_size_opt
	2724	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2725	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2726	;
	2727
[e07caa2]	2728	field_abstract_list_opt:
	2729	// empty
[dea36ee]	2730	{ $$ = nullptr; }
[e07caa2]	2731	\| field_abstract
	2732	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2733	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2734	;
	2735
[e07caa2]	2736	field_abstract:
[f7e4db27]	2737	// no bit fields
[e07caa2]	2738	variable_abstract_declarator
[679e644]	2739	;
	2740
	2741	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2742	// bit-fields are handled by C declarations
[033ff37]	2743	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2744	{ $$ = $1->addName( $2 ); }
[033ff37]	2745	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2746	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2747	;
	2748
	2749	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2750	// bit-fields are handled by C declarations
[679e644]	2751	cfa_abstract_declarator_tuple
	2752	\| cfa_field_abstract_list ','
[dc3fbe5]	2753	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2754	;
[51b73452]	2755
	2756	bit_subrange_size_opt:
[4d51835]	2757	// empty
[58dd019]	2758	{ $$ = nullptr; }
[4d51835]	2759	\| bit_subrange_size
	2760	;
[51b73452]	2761
	2762	bit_subrange_size:
[c786e1d]	2763	':' assignment_expression
[4d51835]	2764	{ $$ = $2; }
	2765	;
[51b73452]	2766
[7e13b11]	2767	// ************************ ENUMERATION *****************************
[647e2ea]	2768
[9e7236f4]	2769	enum_type:
[30aab55]	2770	// anonymous, no type name
	2771	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2772	{
	2773	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2774	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2775	} // if
	2776	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2777	}
[42422fb]	2778	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2779	{
[42422fb]	2780	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2781	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2782	}
[42422fb]	2783	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2784	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2785	} // if
	2786	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2787	}
[30aab55]	2788
[42422fb]	2789	// named type
[30aab55]	2790	\| ENUM attribute_list_opt identifier
	2791	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2792	hide_opt '{' enumerator_list comma_opt '}'
	2793	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2794	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2795	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2796	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2797	{
[42422fb]	2798	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2799	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2800	}
[42422fb]	2801	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2802	}
[c7f12a4]	2803	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2804	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2805	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2806	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2807
	2808	// forward declaration
[d0ffed1]	2809	\| enum_type_nobody
	2810	;
	2811
[42422fb]	2812	enumerator_type:
	2813	'(' ')' // pure enumeration
	2814	{ $$ = nullptr; }
	2815	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2816	{ $$ = $2; }
	2817	;
	2818
[c7f12a4]	2819	hide_opt:
	2820	// empty
[7cf8006]	2821	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2822	\| '!'
[7cf8006]	2823	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2824	;
	2825
[d0ffed1]	2826	enum_type_nobody: // enum - {...}
[f9c3100]	2827	ENUM attribute_list_opt identifier
[71a422a]	2828	{
	2829	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2830	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2831	}
[0bd46fd]	2832	\| ENUM attribute_list_opt type_name
[71a422a]	2833	{
[6cef439]	2834	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2835	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2836	}
[4d51835]	2837	;
[51b73452]	2838
	2839	enumerator_list:
[7cf8006]	2840	visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2841	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2842	\| INLINE type_name
[d9bad51]	2843	{
	2844	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2845	$2->symbolic.name = nullptr;
	2846	delete $2;
	2847	}
[7cf8006]	2848	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2849	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2850	\| enumerator_list ',' INLINE type_name
	2851	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2852	;
[51b73452]	2853
[7cf8006]	2854	visible_hide_opt:
[c7f12a4]	2855	hide_opt
	2856	\| '^'
[7cf8006]	2857	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2858	;
	2859
[51b73452]	2860	enumerator_value_opt:
[4d51835]	2861	// empty
[58dd019]	2862	{ $$ = nullptr; }
[7991c7d]	2863	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2864	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2865	// \| simple_assignment_operator initializer
	2866	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2867	;
[51b73452]	2868
[7e13b11]	2869	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2870
	2871	parameter_list_ellipsis_opt:
	2872	// empty
	2873	{ $$ = nullptr; }
	2874	\| ELLIPSIS
	2875	{ $$ = nullptr; }
	2876	\| parameter_list
	2877	\| parameter_list ',' ELLIPSIS
	2878	{ $$ = $1->addVarArgs(); }
	2879	;
	2880
	2881	parameter_list: // abstract + real
	2882	parameter_declaration
	2883	\| abstract_parameter_declaration
	2884	\| parameter_list ',' parameter_declaration
	2885	{ $$ = $1->set_last( $3 ); }
	2886	\| parameter_list ',' abstract_parameter_declaration
	2887	{ $$ = $1->set_last( $3 ); }
	2888	;
	2889
	2890	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2891	// empty
[e048ece]	2892	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2893	\| ELLIPSIS
[58dd019]	2894	{ $$ = nullptr; }
[c0aa336]	2895	\| cfa_parameter_list
[647e2ea]	2896	\| cfa_abstract_parameter_list
	2897	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2898	{ $$ = $1->set_last( $3 ); }
	2899	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2900	{ $$ = $1->addVarArgs(); }
[647e2ea]	2901	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2902	{ $$ = $1->addVarArgs(); }
	2903	;
[b87a5ed]	2904
[c0aa336]	2905	cfa_parameter_list: // CFA
	2906	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2907	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2908	cfa_parameter_declaration
[647e2ea]	2909	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2910	{ $$ = $1->set_last( $3 ); }
	2911	\| cfa_parameter_list ',' cfa_parameter_declaration
	2912	{ $$ = $1->set_last( $3 ); }
	2913	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2914	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2915	;
[b87a5ed]	2916
[c0aa336]	2917	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2918	cfa_abstract_parameter_declaration
[647e2ea]	2919	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2920	{ $$ = $1->set_last( $3 ); }
[4d51835]	2921	;
[51b73452]	2922
[de62360d]	2923	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2924	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2925
[647e2ea]	2926	parameter_declaration:
	2927	// No SUE declaration in parameter list.
	2928	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2929	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2930	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2931	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2932	;
	2933
	2934	abstract_parameter_declaration:
	2935	declaration_specifier_nobody default_initializer_opt
	2936	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2937	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2938	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2939	;
	2940
[c0aa336]	2941	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2942	parameter_declaration
[5a51798]	2943	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2944	{ $$ = $1->addName( $2 ); }
[5a51798]	2945	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2946	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2947	{ $$ = $1->addName( $2 ); }
[5a51798]	2948	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2949	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2950	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2951	;
[b87a5ed]	2952
[c0aa336]	2953	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2954	abstract_parameter_declaration
[c0aa336]	2955	\| cfa_identifier_parameter_declarator_no_tuple
	2956	\| cfa_abstract_tuple
	2957	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2958	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2959	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2960	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2961	;
[51b73452]	2962
[c11e31c]	2963	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2964	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2965	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2966
[b87a5ed]	2967	identifier_list: // K&R-style parameter list => no types
[033ff37]	2968	identifier
[4d51835]	2969	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2970	\| identifier_list ',' identifier
[dc3fbe5]	2971	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	2972	;
[51b73452]	2973
[84d58c5]	2974	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2975	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	2976	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	2977	\| type_specifier abstract_declarator
[4d51835]	2978	{ $$ = $2->addType( $1 ); }
	2979	;
[b87a5ed]	2980
[84d58c5]	2981	type: // typeof, assertion
	2982	type_no_function
[c0aa336]	2983	\| cfa_abstract_function // CFA
[4d51835]	2984	;
[51b73452]	2985
	2986	initializer_opt:
[4d51835]	2987	// empty
[58dd019]	2988	{ $$ = nullptr; }
[f9c3100]	2989	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	2990	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	2991	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2992	;
[51b73452]	2993
	2994	initializer:
[de62360d]	2995	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	2996	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2997	;
[51b73452]	2998
[7fdb94e1]	2999	initializer_list_opt:
[097e2b0]	3000	// empty
[58dd019]	3001	{ $$ = nullptr; }
[097e2b0]	3002	\| initializer
[4d51835]	3003	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3004	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3005	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3006	;
[b87a5ed]	3007
[de62360d]	3008	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3009	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3010	//
[b87a5ed]	3011	// int x[10] = { [1] = 3 };
[c11e31c]	3012	//
[de62360d]	3013	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3014	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3015	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3016	// shift/reduce conflicts
[51b73452]	3017
	3018	designation:
[4d51835]	3019	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3020	\| identifier_at ':' // GCC, field name
[bb7422a]	3021	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3022	;
[51b73452]	3023
[b87a5ed]	3024	designator_list: // C99
[4d51835]	3025	designator
[2871210]	3026	\| designator_list designator
[b93c544]	3027	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3028	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3029	;
[51b73452]	3030
	3031	designator:
[e16eb460]	3032	'.' identifier_at // C99, field name
[bb7422a]	3033	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3034	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3035	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3036	{ $$ = $3; }
[c0a33d2]	3037	\| '[' push subrange pop ']' // CFA, multiple array elements
	3038	{ $$ = $3; }
	3039	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3040	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3041	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3042	{ $$ = $4; }
[4d51835]	3043	;
[51b73452]	3044
[de62360d]	3045	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3046	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3047	//
	3048	// Overloading: function, data, and operator identifiers may be overloaded.
	3049	//
[3ca7ef3]	3050	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3051	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3052	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3053	//
[de62360d]	3054	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3055	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3056	//
	3057	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3058	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3059	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3060	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3061	// on type arguments of polymorphic functions.
[c11e31c]	3062
[b87a5ed]	3063	type_parameter_list: // CFA
[67cf18c]	3064	type_parameter
	3065	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3066	{ $$ = $1->set_last( $3 ); }
[4d51835]	3067	;
[b87a5ed]	3068
[84d58c5]	3069	type_initializer_opt: // CFA
	3070	// empty
	3071	{ $$ = nullptr; }
	3072	\| '=' type
	3073	{ $$ = $2; }
	3074	;
	3075
[b87a5ed]	3076	type_parameter: // CFA
[033ff37]	3077	type_class identifier_or_type_name
[408ab79]	3078	{
[71a422a]	3079	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3080	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3081	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3082	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3083	}
[5a51798]	3084	type_initializer_opt assertion_list_opt
[67cf18c]	3085	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3086	\| identifier_or_type_name new_type_class
[71a422a]	3087	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3088	type_initializer_opt assertion_list_opt
	3089	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3090	\| '[' identifier_or_type_name ']'
[b66d14a]	3091	{
[71a422a]	3092	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3093	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3094	}
[5a51798]	3095	// \| type_specifier identifier_parameter_declarator
[9997fee]	3096	\| assertion_list
[bb7422a]	3097	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3098	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3099	{
	3100	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3101	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3102	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3103	}
[4d51835]	3104	;
[b87a5ed]	3105
[5a51798]	3106	new_type_class: // CFA
	3107	// empty
[bb7422a]	3108	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3109	\| '&'
[bb7422a]	3110	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3111	\| '*'
[7e13b11]	3112	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3113	// \| '(' '*' ')' // Gregor made me do it
	3114	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3115	\| ELLIPSIS
[bb7422a]	3116	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3117	;
	3118
[b87a5ed]	3119	type_class: // CFA
[4040425]	3120	OTYPE
[bb7422a]	3121	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3122	\| DTYPE
[bb7422a]	3123	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3124	\| FTYPE
[bb7422a]	3125	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3126	\| TTYPE
[bb7422a]	3127	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3128	;
[b87a5ed]	3129
	3130	assertion_list_opt: // CFA
[4d51835]	3131	// empty
[58dd019]	3132	{ $$ = nullptr; }
[9997fee]	3133	\| assertion_list
	3134	;
	3135
	3136	assertion_list: // CFA
	3137	assertion
	3138	\| assertion_list assertion
[dc3fbe5]	3139	{ $$ = $1->set_last( $2 ); }
[4d51835]	3140	;
[b87a5ed]	3141
	3142	assertion: // CFA
[033ff37]	3143	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3144	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[13e8427]	3145	\| '\|' '{' push trait_declaration_list pop '}'
[4d51835]	3146	{ $$ = $4; }
[35718a9]	3147	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3148	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3149	;
[b87a5ed]	3150
[84d58c5]	3151	type_list: // CFA
	3152	type
[bb7422a]	3153	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3154	\| assignment_expression
[84d58c5]	3155	\| type_list ',' type
[b93c544]	3156	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3157	\| type_list ',' assignment_expression
[b93c544]	3158	{ $$ = $1->set_last( $3 ); }
[4d51835]	3159	;
[b87a5ed]	3160
	3161	type_declaring_list: // CFA
[4040425]	3162	OTYPE type_declarator
[4d51835]	3163	{ $$ = $2; }
[4040425]	3164	\| storage_class_list OTYPE type_declarator
[4d51835]	3165	{ $$ = $3->addQualifiers( $1 ); }
	3166	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3167	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3168	;
[b87a5ed]	3169
	3170	type_declarator: // CFA
[4d51835]	3171	type_declarator_name assertion_list_opt
	3172	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3173	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3174	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3175	;
[b87a5ed]	3176
	3177	type_declarator_name: // CFA
[033ff37]	3178	identifier_or_type_name
[4d51835]	3179	{
[71a422a]	3180	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3181	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3182	}
[033ff37]	3183	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3184	{
[71a422a]	3185	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3186	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3187	}
	3188	;
[b87a5ed]	3189
[4040425]	3190	trait_specifier: // CFA
[033ff37]	3191	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3192	{
[3d937e2]	3193	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3194	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3195	}
	3196	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3197	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[033ff37]	3198	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' push trait_declaration_list pop '}'
[8a97248]	3199	{
[3d937e2]	3200	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3201	$$ = DeclarationNode::newTrait( $2, $4, $8 );
	3202	}
[7a24d76]	3203	\| forall TRAIT identifier_or_type_name '{' push trait_declaration_list pop '}' // alternate
	3204	{ $$ = DeclarationNode::newTrait( $3, $1, $6 ); }
[4d51835]	3205	;
[b87a5ed]	3206
[84d58c5]	3207	trait_declaration_list: // CFA
[4040425]	3208	trait_declaration
[13e8427]	3209	\| trait_declaration_list pop push trait_declaration
[dc3fbe5]	3210	{ $$ = $1->set_last( $4 ); }
[4d51835]	3211	;
[b87a5ed]	3212
[84d58c5]	3213	trait_declaration: // CFA
[13e8427]	3214	cfa_trait_declaring_list ';'
	3215	\| trait_declaring_list ';'
[4d51835]	3216	;
[b87a5ed]	3217
[c0aa336]	3218	cfa_trait_declaring_list: // CFA
	3219	cfa_variable_specifier
	3220	\| cfa_function_specifier
	3221	\| cfa_trait_declaring_list pop ',' push identifier_or_type_name
[dc3fbe5]	3222	{ $$ = $1->set_last( $1->cloneType( $5 ) ); }
[4d51835]	3223	;
[b87a5ed]	3224
[4040425]	3225	trait_declaring_list: // CFA
[4d51835]	3226	type_specifier declarator
[7fdb94e1]	3227	{ $$ = $2->addType( $1 ); }
[4040425]	3228	\| trait_declaring_list pop ',' push declarator
[dc3fbe5]	3229	{ $$ = $1->set_last( $1->cloneBaseType( $5 ) ); }
[4d51835]	3230	;
[51b73452]	3231
[e1d66c84]	3232	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3233
	3234	translation_unit:
[3d56d15b]	3235	// empty, input file
[4d51835]	3236	\| external_definition_list
[12f1156]	3237	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3238	;
[51b73452]	3239
	3240	external_definition_list:
[35718a9]	3241	push external_definition pop
	3242	{ $$ = $2; }
[fc20514]	3243	\| external_definition_list push external_definition pop
[dc3fbe5]	3244	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3245	;
[51b73452]	3246
	3247	external_definition_list_opt:
[4d51835]	3248	// empty
[58dd019]	3249	{ $$ = nullptr; }
[3d56d15b]	3250	\| external_definition_list
	3251	;
	3252
	3253	up:
[fc20514]	3254	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3255	;
	3256
	3257	down:
	3258	{ typedefTable.down(); }
[4d51835]	3259	;
[51b73452]	3260
	3261	external_definition:
[2d019af]	3262	DIRECTIVE
[bb7422a]	3263	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3264	\| declaration
[1a73dbb]	3265	{
	3266	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3267	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3268	// disallowed at the moment.
[4eb3a7c5]	3269	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3270	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3271	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3272	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3273	}
	3274	}
	3275	}
[996c8ed]	3276	\| IDENTIFIER IDENTIFIER
	3277	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3278	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3279	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3280	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3281	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3282	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3283	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3284	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3285	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3286	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3287	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3288	\| external_function_definition
[ecae5860]	3289	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3290	{
	3291	distExt( $2 ); // mark all fields in list
	3292	$$ = $2;
	3293	}
[e994912]	3294	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3295	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3296	\| EXTERN STRINGliteral
	3297	{
	3298	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3299	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3300	}
[ae2f2ae]	3301	up external_definition down
[aac37fa]	3302	{
	3303	linkage = linkageStack.top();
	3304	linkageStack.pop();
	3305	$$ = $5;
	3306	}
[c0aa336]	3307	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3308	{
[3b8e52c]	3309	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3310	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3311	}
[3d56d15b]	3312	'{' up external_definition_list_opt down '}'
[4d51835]	3313	{
	3314	linkage = linkageStack.top();
	3315	linkageStack.pop();
[3d56d15b]	3316	$$ = $6;
[8e9cbb2]	3317	}
[7e13b11]	3318	// global distribution
[9997fee]	3319	\| type_qualifier_list
	3320	{
[55266c7]	3321	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3322	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3323	}
[fc20514]	3324	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3325	}
	3326	'{' up external_definition_list_opt down '}' // CFA, namespace
	3327	{
[4c3ee8d]	3328	distQual( $5, $1 );
[9fd9d015]	3329	forall = false;
[3d56d15b]	3330	$$ = $5;
[9997fee]	3331	}
	3332	\| declaration_qualifier_list
	3333	{
[55266c7]	3334	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3335	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3336	}
[fc20514]	3337	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3338	}
	3339	'{' up external_definition_list_opt down '}' // CFA, namespace
	3340	{
[4c3ee8d]	3341	distQual( $5, $1 );
[9fd9d015]	3342	forall = false;
[3d56d15b]	3343	$$ = $5;
[9997fee]	3344	}
	3345	\| declaration_qualifier_list type_qualifier_list
	3346	{
[55266c7]	3347	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3348	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3349	}
[b2ddaf3]	3350	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3351	}
[3d56d15b]	3352	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3353	{
[284da8c]	3354	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3355	forall = false;
[3d56d15b]	3356	$$ = $6;
[9997fee]	3357	}
[4d51835]	3358	;
	3359
	3360	external_function_definition:
	3361	function_definition
[de62360d]	3362	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3363	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3364	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3365	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3366	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3367	\| function_declarator compound_statement
[c0a33d2]	3368	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3369	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3370	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3371	;
[51b73452]	3372
[8b47e50]	3373	with_clause_opt:
	3374	// empty
[9997fee]	3375	{ $$ = nullptr; forall = false; }
[e78966e]	3376	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3377	{
	3378	$$ = $3; forall = false;
	3379	if ( $5 ) {
[253d0b4]	3380	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3381	$$ = nullptr;
	3382	} // if
	3383	}
[8b47e50]	3384	;
	3385
[51b73452]	3386	function_definition:
[8b47e50]	3387	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3388	{
[481115f]	3389	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3390	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3391	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3392	$$ = $1;
[4d51835]	3393	}
[8b47e50]	3394	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3395	{
[c38ae92]	3396	rebindForall( $1, $2 );
[7fdb94e1]	3397	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3398	}
[1f771fc]	3399	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3400	{
	3401	rebindForall( $1, $2 );
[5fcba14]	3402	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3403	}
[a16a7ec]	3404	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3405	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3406	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3407	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3408	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3409	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3410	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3411	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3412	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3413
	3414	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3415	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3416	{
[c38ae92]	3417	rebindForall( $1, $2 );
[5fcba14]	3418	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3419	}
[a16a7ec]	3420	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3421	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3422	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3423	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3424	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3425	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3426	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3427	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3428	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3429	;
[51b73452]	3430
	3431	declarator:
[4d51835]	3432	variable_declarator
[c6b1105]	3433	\| variable_type_redeclarator
[4d51835]	3434	\| function_declarator
[1f771fc]	3435	\| function_type_redeclarator
[4d51835]	3436	;
[51b73452]	3437
	3438	subrange:
[4d51835]	3439	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3440	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3441	;
[b87a5ed]	3442
[7e13b11]	3443	// ************************** ASM ***************************
	3444
[b87a5ed]	3445	asm_name_opt: // GCC
[4d51835]	3446	// empty
[58dd019]	3447	{ $$ = nullptr; }
	3448	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3449	{
	3450	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3451	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3452	$$ = name->addQualifiers( $5 );
	3453	}
[4d51835]	3454	;
[b87a5ed]	3455
[7e13b11]	3456	// ************************** ATTRIBUTE ***************************
	3457
[b87a5ed]	3458	attribute_list_opt: // GCC
[4d51835]	3459	// empty
[58dd019]	3460	{ $$ = nullptr; }
[4d51835]	3461	\| attribute_list
	3462	;
[b87a5ed]	3463
	3464	attribute_list: // GCC
[4d51835]	3465	attribute
	3466	\| attribute_list attribute
[1db21619]	3467	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3468	;
[b87a5ed]	3469
	3470	attribute: // GCC
[44a81853]	3471	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3472	{ $$ = $4; }
[647e2ea]	3473	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3474	{ $$ = $3; }
	3475	\| ATTR '(' attribute_name_list ')' // CFA
	3476	{ $$ = $3; }
[4d51835]	3477	;
[b87a5ed]	3478
[44a81853]	3479	attribute_name_list: // GCC
	3480	attribute_name
	3481	\| attribute_name_list ',' attribute_name
[c0aa336]	3482	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3483	;
[b87a5ed]	3484
[44a81853]	3485	attribute_name: // GCC
[4d51835]	3486	// empty
[44a81853]	3487	{ $$ = nullptr; }
	3488	\| attr_name
	3489	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3490	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3491	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3492	;
[b87a5ed]	3493
[44a81853]	3494	attr_name: // GCC
[12f1156]	3495	identifier_or_type_name
[114014c]	3496	\| FALLTHROUGH
	3497	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3498	\| CONST
[9ff56e7]	3499	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3500	;
[51b73452]	3501
[c11e31c]	3502	// ============================================================================
[de62360d]	3503	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3504	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3505	// in:
[c11e31c]	3506	//
[b87a5ed]	3507	// int (*f())[10] { ... };
	3508	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3509	//
[de62360d]	3510	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3511	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3512	// ============================================================================
	3513
	3514	// ----------------------------------------------------------------------------
[de62360d]	3515	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3516	// to define a variable or function prototype, e.g.:
[c11e31c]	3517	//
[b87a5ed]	3518	// valid declaration invalid definition
	3519	// ----------------- ------------------
[4d51835]	3520	// int f; int f {}
	3521	// int f; int f {}
[b87a5ed]	3522	// int f[10]; int f[10] {}
[4d51835]	3523	// int (f)(int); int (f)(int) {}
[c11e31c]	3524	//
[de62360d]	3525	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3526	// variable_declarator and function_declarator.
[c11e31c]	3527	// ----------------------------------------------------------------------------
	3528
[de62360d]	3529	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3530	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3531
[5e25953]	3532	paren_identifier:
[e16eb460]	3533	identifier_at
[5e25953]	3534	{ $$ = DeclarationNode::newName( $1 ); }
	3535	\| '(' paren_identifier ')' // redundant parenthesis
	3536	{ $$ = $2; }
	3537	;
	3538
[51b73452]	3539	variable_declarator:
[4d51835]	3540	paren_identifier attribute_list_opt
[1db21619]	3541	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3542	\| variable_ptr
	3543	\| variable_array attribute_list_opt
[1db21619]	3544	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3545	\| variable_function attribute_list_opt
[1db21619]	3546	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3547	;
[51b73452]	3548
	3549	variable_ptr:
[dd51906]	3550	ptrref_operator variable_declarator
[a5f9444]	3551	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3552	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3553	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3554	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3555	{ $$ = $2->addQualifiers( $4 ); }
	3556	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3557	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3558	;
[51b73452]	3559
	3560	variable_array:
[4d51835]	3561	paren_identifier array_dimension
	3562	{ $$ = $1->addArray( $2 ); }
	3563	\| '(' variable_ptr ')' array_dimension
	3564	{ $$ = $2->addArray( $4 ); }
[5e25953]	3565	\| '(' attribute_list variable_ptr ')' array_dimension
	3566	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3567	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3568	{ $$ = $2->addArray( $4 ); }
[5e25953]	3569	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3570	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3571	\| '(' variable_array ')' // redundant parenthesis
	3572	{ $$ = $2; }
[5e25953]	3573	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3574	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3575	;
[51b73452]	3576
	3577	variable_function:
[647e2ea]	3578	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3579	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3580	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3581	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3582	\| '(' variable_function ')' // redundant parenthesis
	3583	{ $$ = $2; }
[5e25953]	3584	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3585	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3586	;
[51b73452]	3587
[c6b1105]	3588	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3589	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3590	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3591
	3592	function_declarator:
[4d51835]	3593	function_no_ptr attribute_list_opt
[1db21619]	3594	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3595	\| function_ptr
	3596	\| function_array attribute_list_opt
[1db21619]	3597	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3598	;
[51b73452]	3599
	3600	function_no_ptr:
[647e2ea]	3601	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3602	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3603	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3604	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3605	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3606	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3607	\| '(' function_no_ptr ')' // redundant parenthesis
	3608	{ $$ = $2; }
[5e25953]	3609	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3610	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3611	;
[51b73452]	3612
	3613	function_ptr:
[dd51906]	3614	ptrref_operator function_declarator
[a5f9444]	3615	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3616	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3617	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3618	\| '(' function_ptr ')' attribute_list_opt
	3619	{ $$ = $2->addQualifiers( $4 ); }
	3620	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3621	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3622	;
[51b73452]	3623
	3624	function_array:
[4d51835]	3625	'(' function_ptr ')' array_dimension
	3626	{ $$ = $2->addArray( $4 ); }
[5e25953]	3627	\| '(' attribute_list function_ptr ')' array_dimension
	3628	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3629	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3630	{ $$ = $2->addArray( $4 ); }
[5e25953]	3631	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3632	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3633	\| '(' function_array ')' // redundant parenthesis
	3634	{ $$ = $2; }
[5e25953]	3635	\| '(' attribute_list function_array ')' // redundant parenthesis
	3636	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3637	;
[51b73452]	3638
[c0aa336]	3639	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3640	//
	3641	// f( a, b, c ) int a, *b, c[]; {}
	3642	//
	3643	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3644	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3645
[c0aa336]	3646	KR_function_declarator:
	3647	KR_function_no_ptr
	3648	\| KR_function_ptr
	3649	\| KR_function_array
[4d51835]	3650	;
[51b73452]	3651
[c0aa336]	3652	KR_function_no_ptr:
[4d51835]	3653	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3654	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3655	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3656	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3657	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3658	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3659	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3660	{ $$ = $2; }
[5e25953]	3661	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3662	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3663	;
[51b73452]	3664
[c0aa336]	3665	KR_function_ptr:
	3666	ptrref_operator KR_function_declarator
[a5f9444]	3667	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3668	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3669	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3670	\| '(' KR_function_ptr ')'
[4d51835]	3671	{ $$ = $2; }
[5e25953]	3672	\| '(' attribute_list KR_function_ptr ')'
	3673	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3674	;
[51b73452]	3675
[c0aa336]	3676	KR_function_array:
	3677	'(' KR_function_ptr ')' array_dimension
[4d51835]	3678	{ $$ = $2->addArray( $4 ); }
[5e25953]	3679	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3680	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3681	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3682	{ $$ = $2->addArray( $4 ); }
[5e25953]	3683	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3684	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3685	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3686	{ $$ = $2; }
[5e25953]	3687	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3688	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3689	;
[51b73452]	3690
[1f771fc]	3691	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3692	//
[b87a5ed]	3693	// typedef int foo;
	3694	// {
	3695	// int foo; // redefine typedef name in new scope
	3696	// }
[51b73452]	3697
[2871210]	3698	paren_type:
[f9c3100]	3699	typedef_name
[c4f68dc]	3700	{
[f9c3100]	3701	// hide type name in enclosing scope by variable name
[71a422a]	3702	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3703	}
[2871210]	3704	\| '(' paren_type ')'
[4d51835]	3705	{ $$ = $2; }
	3706	;
[51b73452]	3707
[5e25953]	3708	variable_type_redeclarator:
	3709	paren_type attribute_list_opt
	3710	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3711	\| variable_type_ptr
	3712	\| variable_type_array attribute_list_opt
[5e25953]	3713	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3714	\| variable_type_function attribute_list_opt
[5e25953]	3715	{ $$ = $1->addQualifiers( $2 ); }
	3716	;
	3717
[1f771fc]	3718	variable_type_ptr:
[c6b1105]	3719	ptrref_operator variable_type_redeclarator
[a5f9444]	3720	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3721	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3722	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3723	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3724	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3725	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3726	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3727	;
[51b73452]	3728
[1f771fc]	3729	variable_type_array:
[2871210]	3730	paren_type array_dimension
[4d51835]	3731	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3732	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3733	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3734	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3735	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3736	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3737	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3738	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3739	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3740	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3741	{ $$ = $2; }
[1f771fc]	3742	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3743	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3744	;
[51b73452]	3745
[1f771fc]	3746	variable_type_function:
[647e2ea]	3747	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3748	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3749	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3750	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3751	\| '(' variable_type_function ')' // redundant parenthesis
	3752	{ $$ = $2; }
	3753	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3754	{ $$ = $3->addQualifiers( $2 ); }
	3755	;
	3756
	3757	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3758	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3759	// arrays and functions.
	3760
	3761	function_type_redeclarator:
	3762	function_type_no_ptr attribute_list_opt
	3763	{ $$ = $1->addQualifiers( $2 ); }
	3764	\| function_type_ptr
	3765	\| function_type_array attribute_list_opt
	3766	{ $$ = $1->addQualifiers( $2 ); }
	3767	;
	3768
	3769	function_type_no_ptr:
[647e2ea]	3770	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3771	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3772	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3773	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3774	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3775	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3776	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3777	{ $$ = $2; }
[1f771fc]	3778	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3779	{ $$ = $3->addQualifiers( $2 ); }
	3780	;
	3781
	3782	function_type_ptr:
	3783	ptrref_operator function_type_redeclarator
	3784	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3785	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3786	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3787	\| '(' function_type_ptr ')' attribute_list_opt
	3788	{ $$ = $2->addQualifiers( $4 ); }
	3789	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3790	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3791	;
	3792
	3793	function_type_array:
	3794	'(' function_type_ptr ')' array_dimension
	3795	{ $$ = $2->addArray( $4 ); }
	3796	\| '(' attribute_list function_type_ptr ')' array_dimension
	3797	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3798	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3799	{ $$ = $2->addArray( $4 ); }
	3800	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3801	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3802	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3803	{ $$ = $2; }
[1f771fc]	3804	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3805	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3806	;
[51b73452]	3807
[c0aa336]	3808	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3809	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3810	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3811	// pointers to arrays and functions.
[51b73452]	3812
	3813	identifier_parameter_declarator:
[4d51835]	3814	paren_identifier attribute_list_opt
[1db21619]	3815	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3816	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3817	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3818	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3819	\| identifier_parameter_ptr
	3820	\| identifier_parameter_array attribute_list_opt
[1db21619]	3821	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3822	\| identifier_parameter_function attribute_list_opt
[1db21619]	3823	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3824	;
[51b73452]	3825
	3826	identifier_parameter_ptr:
[dd51906]	3827	ptrref_operator identifier_parameter_declarator
[a5f9444]	3828	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3829	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3830	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3831	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3832	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3833	;
[51b73452]	3834
	3835	identifier_parameter_array:
[4d51835]	3836	paren_identifier array_parameter_dimension
	3837	{ $$ = $1->addArray( $2 ); }
	3838	\| '(' identifier_parameter_ptr ')' array_dimension
	3839	{ $$ = $2->addArray( $4 ); }
	3840	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3841	{ $$ = $2->addArray( $4 ); }
	3842	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3843	{ $$ = $2; }
	3844	;
[51b73452]	3845
	3846	identifier_parameter_function:
[647e2ea]	3847	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3848	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3849	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3850	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3851	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3852	{ $$ = $2; }
	3853	;
[b87a5ed]	3854
[de62360d]	3855	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3856	// e.g.:
[c11e31c]	3857	//
[b87a5ed]	3858	// typedef int foo;
[114014c]	3859	// forall( otype T ) struct foo;
[b87a5ed]	3860	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3861	//
[c0aa336]	3862	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3863
[2871210]	3864	type_parameter_redeclarator:
[f9c3100]	3865	typedef_name attribute_list_opt
[1db21619]	3866	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3867	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3868	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3869	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3870	\| type_parameter_ptr
	3871	\| type_parameter_array attribute_list_opt
[1db21619]	3872	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3873	\| type_parameter_function attribute_list_opt
[1db21619]	3874	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3875	;
[51b73452]	3876
[f9c3100]	3877	typedef_name:
[4d51835]	3878	TYPEDEFname
[7fdb94e1]	3879	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3880	\| TYPEGENname
[7fdb94e1]	3881	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3882	;
[51b73452]	3883
[2871210]	3884	type_parameter_ptr:
[dd51906]	3885	ptrref_operator type_parameter_redeclarator
[a5f9444]	3886	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3887	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3888	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3889	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3890	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3891	;
[51b73452]	3892
[2871210]	3893	type_parameter_array:
[f9c3100]	3894	typedef_name array_parameter_dimension
[4d51835]	3895	{ $$ = $1->addArray( $2 ); }
[2871210]	3896	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3897	{ $$ = $2->addArray( $4 ); }
	3898	;
[51b73452]	3899
[2871210]	3900	type_parameter_function:
[7e13b11]	3901	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3902	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3903	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3904	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3905	;
[b87a5ed]	3906
[de62360d]	3907	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3908	// which the type applies, e.g.:
[c11e31c]	3909	//
[b87a5ed]	3910	// sizeof( int );
[c0aa336]	3911	// sizeof( int * );
[b87a5ed]	3912	// sizeof( int [10] );
[c0aa336]	3913	// sizeof( int (*)() );
	3914	// sizeof( int () );
[c11e31c]	3915	//
[de62360d]	3916	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3917	// and functions versus pointers to arrays and functions.
[51b73452]	3918
	3919	abstract_declarator:
[4d51835]	3920	abstract_ptr
	3921	\| abstract_array attribute_list_opt
[1db21619]	3922	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3923	\| abstract_function attribute_list_opt
[1db21619]	3924	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3925	;
[51b73452]	3926
	3927	abstract_ptr:
[dd51906]	3928	ptrref_operator
[a5f9444]	3929	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3930	\| ptrref_operator type_qualifier_list
[ce8c12f]	3931	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3932	\| ptrref_operator abstract_declarator
[a5f9444]	3933	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3934	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3935	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3936	\| '(' abstract_ptr ')' attribute_list_opt
	3937	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3938	;
[51b73452]	3939
	3940	abstract_array:
[4d51835]	3941	array_dimension
	3942	\| '(' abstract_ptr ')' array_dimension
	3943	{ $$ = $2->addArray( $4 ); }
	3944	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3945	{ $$ = $2->addArray( $4 ); }
	3946	\| '(' abstract_array ')' // redundant parenthesis
	3947	{ $$ = $2; }
	3948	;
[51b73452]	3949
	3950	abstract_function:
[7e13b11]	3951	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3952	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3953	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3954	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3955	\| '(' abstract_function ')' // redundant parenthesis
	3956	{ $$ = $2; }
	3957	;
[51b73452]	3958
	3959	array_dimension:
[4d51835]	3960	// Only the first dimension can be empty.
[2871210]	3961	'[' ']'
[a5f9444]	3962	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	3963	\| '[' ']' multi_array_dimension
[a5f9444]	3964	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	3965	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	3966	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	3967	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	3968	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	3969
	3970	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	3971	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	3972
[d41735a]	3973	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	3974	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	3975	\| multi_array_dimension
	3976	;
[51b73452]	3977
[647e2ea]	3978	// array_dimension_list:
	3979	// assignment_expression
	3980	// \| array_dimension_list ',' assignment_expression
	3981	// ;
	3982
[d41735a]	3983	array_type_list:
	3984	basic_type_name
[bb7422a]	3985	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3986	\| type_name
[bb7422a]	3987	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3988	\| assignment_expression upupeq assignment_expression
	3989	\| array_type_list ',' basic_type_name
[b93c544]	3990	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	3991	\| array_type_list ',' type_name
[b93c544]	3992	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	3993	\| array_type_list ',' assignment_expression upupeq assignment_expression
	3994	;
	3995
	3996	upupeq:
	3997	'~'
	3998	{ $$ = OperKinds::LThan; }
	3999	\| ErangeUpEq
	4000	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4001	;
[d41735a]	4002
[51b73452]	4003	multi_array_dimension:
[c0a33d2]	4004	'[' push assignment_expression pop ']'
[a5f9444]	4005	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	4006	\| '[' push '*' pop ']' // C99
[4d51835]	4007	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	4008	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	4009	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	4010	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	4011	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4012	;
[51b73452]	4013
[c11e31c]	4014	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4015	// identifier to which the type applies, e.g.:
	4016	//
[c0aa336]	4017	// int f( int ); // not handled here
	4018	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4019	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4020	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4021	//
[de62360d]	4022	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4023	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4024	// parenthesis around a typedef name:
[c0aa336]	4025	//
	4026	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4027	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4028	// not as redundant parentheses around the identifier."
	4029	//
	4030	// For example:
	4031	//
	4032	// typedef float T;
	4033	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4034	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4035	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4036	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4037	//
	4038	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4039	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4040	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4041	// functions.
[51b73452]	4042
[59c7e3e]	4043	abstract_parameter_declarator_opt:
	4044	// empty
	4045	{ $$ = nullptr; }
	4046	\| abstract_parameter_declarator
	4047	;
	4048
[51b73452]	4049	abstract_parameter_declarator:
[4d51835]	4050	abstract_parameter_ptr
[b6b3c42]	4051	\| '&' MUTEX attribute_list_opt
[446740a]	4052	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4053	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4054	\| abstract_parameter_array attribute_list_opt
[1db21619]	4055	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4056	\| abstract_parameter_function attribute_list_opt
[1db21619]	4057	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4058	;
[51b73452]	4059
	4060	abstract_parameter_ptr:
[dd51906]	4061	ptrref_operator
[ce8c12f]	4062	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4063	\| ptrref_operator type_qualifier_list
[ce8c12f]	4064	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4065	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4066	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4067	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4068	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4069	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4070	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4071	;
[51b73452]	4072
	4073	abstract_parameter_array:
[4d51835]	4074	array_parameter_dimension
	4075	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4076	{ $$ = $2->addArray( $4 ); }
	4077	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4078	{ $$ = $2->addArray( $4 ); }
	4079	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4080	{ $$ = $2; }
	4081	;
[51b73452]	4082
	4083	abstract_parameter_function:
[7e13b11]	4084	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4085	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4086	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4087	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4088	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4089	{ $$ = $2; }
	4090	;
[51b73452]	4091
	4092	array_parameter_dimension:
[4d51835]	4093	// Only the first dimension can be empty or have qualifiers.
	4094	array_parameter_1st_dimension
	4095	\| array_parameter_1st_dimension multi_array_dimension
	4096	{ $$ = $1->addArray( $2 ); }
	4097	\| multi_array_dimension
	4098	;
[51b73452]	4099
[c11e31c]	4100	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4101	//
[de62360d]	4102	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4103	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4104
	4105	array_parameter_1st_dimension:
[2871210]	4106	'[' ']'
[a5f9444]	4107	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4108	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4109	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4110	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4111	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4112	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4113	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4114	\| '[' push type_qualifier_list assignment_expression pop ']'
	4115	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4116	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4117	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4118	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4119	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4120	;
[b87a5ed]	4121
[c0aa336]	4122	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4123	//
[71a422a]	4124	// struct S {
	4125	// int;
	4126	// int *;
	4127	// int [10];
	4128	// int (*)();
	4129	// };
[51b73452]	4130
	4131	variable_abstract_declarator:
[4d51835]	4132	variable_abstract_ptr
	4133	\| variable_abstract_array attribute_list_opt
[1db21619]	4134	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4135	\| variable_abstract_function attribute_list_opt
[1db21619]	4136	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4137	;
[51b73452]	4138
	4139	variable_abstract_ptr:
[dd51906]	4140	ptrref_operator
[a5f9444]	4141	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4142	\| ptrref_operator type_qualifier_list
[ce8c12f]	4143	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4144	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4145	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4146	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4147	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4148	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4149	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4150	;
[51b73452]	4151
	4152	variable_abstract_array:
[4d51835]	4153	array_dimension
	4154	\| '(' variable_abstract_ptr ')' array_dimension
	4155	{ $$ = $2->addArray( $4 ); }
	4156	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4157	{ $$ = $2->addArray( $4 ); }
	4158	\| '(' variable_abstract_array ')' // redundant parenthesis
	4159	{ $$ = $2; }
	4160	;
[51b73452]	4161
	4162	variable_abstract_function:
[647e2ea]	4163	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4164	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4165	\| '(' variable_abstract_function ')' // redundant parenthesis
	4166	{ $$ = $2; }
	4167	;
[b87a5ed]	4168
[de62360d]	4169	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4170	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4171
[c0aa336]	4172	cfa_identifier_parameter_declarator_tuple: // CFA
	4173	cfa_identifier_parameter_declarator_no_tuple
	4174	\| cfa_abstract_tuple
	4175	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4176	{ $$ = $2->addQualifiers( $1 ); }
	4177	;
[b87a5ed]	4178
[c0aa336]	4179	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4180	cfa_identifier_parameter_ptr
	4181	\| cfa_identifier_parameter_array
[4d51835]	4182	;
[b87a5ed]	4183
[c0aa336]	4184	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4185	// No SUE declaration in parameter list.
	4186	ptrref_operator type_specifier_nobody
[a5f9444]	4187	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4188	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4189	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4190	\| ptrref_operator cfa_abstract_function
[a5f9444]	4191	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4192	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4193	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4194	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4195	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4196	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4197	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4198	;
[b87a5ed]	4199
[c0aa336]	4200	cfa_identifier_parameter_array: // CFA
[de62360d]	4201	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4202	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4203	'[' ']' type_specifier_nobody
[a5f9444]	4204	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4205	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4206	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4207	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4208	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4209	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4210	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4211	\| multi_array_dimension type_specifier_nobody
[4d51835]	4212	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4213
[c0aa336]	4214	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4215	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4216	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4217	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4218	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4219	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4220	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4221	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4222	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4223	{ $$ = $2->addNewArray( $1 ); }
	4224	;
[51b73452]	4225
[c0aa336]	4226	cfa_array_parameter_1st_dimension:
[c0a33d2]	4227	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4228	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4229	\| '[' push type_qualifier_list assignment_expression pop ']'
	4230	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4231	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4232	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4233	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4234	// appear in this context.
[c0a33d2]	4235	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4236	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4237	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4238	;
[b87a5ed]	4239
[de62360d]	4240	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4241	// identifier to which the type applies, e.g.:
[c11e31c]	4242	//
[b87a5ed]	4243	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4244	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4245	//
	4246	// These rules need LR(3):
	4247	//
[c0aa336]	4248	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4249	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4250	//
	4251	// since a function return type can be syntactically identical to a tuple type:
	4252	//
[b87a5ed]	4253	// [int, int] t;
	4254	// [int, int] f( int );
[c11e31c]	4255	//
[2871210]	4256	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4257	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4258	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4259	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4260
[c0aa336]	4261	cfa_abstract_declarator_tuple: // CFA
	4262	cfa_abstract_tuple
	4263	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4264	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4265	\| cfa_abstract_declarator_no_tuple
[4d51835]	4266	;
[b87a5ed]	4267
[c0aa336]	4268	cfa_abstract_declarator_no_tuple: // CFA
	4269	cfa_abstract_ptr
	4270	\| cfa_abstract_array
[4d51835]	4271	;
[b87a5ed]	4272
[c0aa336]	4273	cfa_abstract_ptr: // CFA
[dd51906]	4274	ptrref_operator type_specifier
[a5f9444]	4275	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4276	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4277	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4278	\| ptrref_operator cfa_abstract_function
[a5f9444]	4279	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4280	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4281	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4282	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4283	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4284	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4285	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4286	;
[b87a5ed]	4287
[c0aa336]	4288	cfa_abstract_array: // CFA
[de62360d]	4289	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4290	// empty (void) function return type.
[2871210]	4291	'[' ']' type_specifier
[2298f728]	4292	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4293	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4294	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4295	\| multi_array_dimension type_specifier
	4296	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4297	\| '[' ']' cfa_abstract_ptr
[2298f728]	4298	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4299	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4300	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4301	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4302	{ $$ = $2->addNewArray( $1 ); }
	4303	;
[b87a5ed]	4304
[c0aa336]	4305	cfa_abstract_tuple: // CFA
[c0a33d2]	4306	'[' push cfa_abstract_parameter_list pop ']'
	4307	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4308	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4309	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4310	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4311	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4312	;
[b87a5ed]	4313
[c0aa336]	4314	cfa_abstract_function: // CFA
[647e2ea]	4315	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4316	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4317	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4318	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4319	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4320	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4321	;
[b87a5ed]	4322
[de62360d]	4323	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4324	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4325	//
[de62360d]	4326	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4327	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4328	//
	4329	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4330	// prototype-format parameter type declarators) is an obsolescent feature."
	4331	//
[de62360d]	4332	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4333	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4334
[e1d66c84]	4335	// ********************** MISCELLANEOUS ******************************
[51b73452]	4336
[b87a5ed]	4337	comma_opt: // redundant comma
[4d51835]	4338	// empty
	4339	\| ','
	4340	;
[51b73452]	4341
[5a51798]	4342	default_initializer_opt:
[4d51835]	4343	// empty
[58dd019]	4344	{ $$ = nullptr; }
[4d51835]	4345	\| '=' assignment_expression
	4346	{ $$ = $2; }
	4347	;
[51b73452]	4348
	4349	%%
[a1c9ddd]	4350
[c11e31c]	4351	// ----end of grammar----
[51b73452]	4352
[c11e31c]	4353	// Local Variables: //
[b87a5ed]	4354	// mode: c++ //
[de62360d]	4355	// tab-width: 4 //
[7e13b11]	4356	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4357	// End: //

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