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Last change on this file since 86841ee was 569b118, checked in by Peter A. Buhr <pabuhr@…>, 13 months ago
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[b87a5ed]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[9335ecc]	7	// parser.yy --
[974906e2]	8	//
[c11e31c]	9	// Author : Peter A. Buhr
	10	// Created On : Sat Sep 1 20:22:55 2001
[04c78215]	11	// Last Modified By : Peter A. Buhr
[569b118]	12	// Last Modified On : Mon Sep 23 22:47:42 2024
	13	// Update Count : 6753
[974906e2]	14	//
[c11e31c]	15
[de62360d]	16	// This grammar is based on the ANSI99/11 C grammar, specifically parts of EXPRESSION and STATEMENTS, and on the C
	17	// grammar by James A. Roskind, specifically parts of DECLARATIONS and EXTERNAL DEFINITIONS. While parts have been
	18	// copied, important changes have been made in all sections; these changes are sufficient to constitute a new grammar.
	19	// In particular, this grammar attempts to be more syntactically precise, i.e., it parses less incorrect language syntax
	20	// that must be subsequently rejected by semantic checks. Nevertheless, there are still several semantic checks
	21	// required and many are noted in the grammar. Finally, the grammar is extended with GCC and CFA language extensions.
[c11e31c]	22
[de62360d]	23	// Acknowledgments to Richard Bilson, Glen Ditchfield, and Rodolfo Gabriel Esteves who all helped when I got stuck with
	24	// the grammar.
[c11e31c]	25
	26	// The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed, except for:
	27	//
[9380add]	28	// designation with '=' (use ':' instead)
[c11e31c]	29	//
[9380add]	30	// This incompatibility is discussed in detail before the "designation" grammar rule. Most of the syntactic extensions
	31	// from ANSI90 to ANSI11 C are marked with the comment "C99/C11".
[f9c3100]	32
[e16eb460]	33	// This grammar also has two levels of extensions. The first extensions cover most of the GCC C extensions. All of the
[9380add]	34	// syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall (CFA), which
	35	// fixes several of C's outstanding problems and extends C with many modern language concepts. All of the syntactic
	36	// extensions for CFA C are marked with the comment "CFA".
[51b73452]	37
	38	%{
[ec3f9c8]	39	#define YYDEBUG_LEXER_TEXT( yylval ) // lexer loads this up each time
[b87a5ed]	40	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	41	#define YYERROR_VERBOSE // more information in syntax errors
[51b73452]	42
	43	#undef __GNUC_MINOR__
	44
	45	#include <cstdio>
[9feb34b]	46	#include <sstream>
[51b73452]	47	#include <stack>
[9ed4f94]	48	using namespace std;
	49
[c92bdcc]	50	#include "DeclarationNode.hpp" // for DeclarationNode, ...
	51	#include "ExpressionNode.hpp" // for ExpressionNode, ...
	52	#include "InitializerNode.hpp" // for InitializerNode, ...
	53	#include "ParserTypes.hpp"
	54	#include "StatementNode.hpp" // for build_...
	55	#include "TypedefTable.hpp"
	56	#include "TypeData.hpp"
[7a780ad]	57	#include "AST/Type.hpp" // for BasicType, BasicKind
[c92bdcc]	58	#include "Common/SemanticError.hpp" // error_str
	59	#include "Common/Utility.hpp" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b73452]	60
[ae2f2ae]	61	// lex uses __null in a boolean context, it's fine.
[0bd46fd]	62	#ifdef __clang__
[09f34a84]	63	#pragma GCC diagnostic ignored "-Wparentheses-equality"
[0bd46fd]	64	#endif
[ae2f2ae]	65
[cbaee0d]	66	extern DeclarationNode * parseTree;
[bb7422a]	67	extern ast::Linkage::Spec linkage;
[0da3e2c]	68	extern TypedefTable typedefTable;
	69
[bb7422a]	70	stack<ast::Linkage::Spec> linkageStack;
[7bf7fb9]	71
[15697ff]	72	bool appendStr( string & to, string & from ) {
	73	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	74	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	75	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	76	// easier to let the C compiler handle this case.
	77	//
	78	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	79	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
[efc8f3e]	80	// e.g., u"a" U"b" L"c" is disallowed.
[15697ff]	81
	82	if ( from[0] != '"' ) { // encoding ?
	83	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	84	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	85	yyerror( "non-matching string encodings for string-literal concatenation" );
	86	return false; // parse error, must call YYERROR in action
[ea0c5e3]	87	} else if ( from[1] == '8' ) {
	88	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	89	} // if
	90	} else {
[ea0c5e3]	91	if ( from[1] == '8' ) { // move encoding to start
	92	to = "u8" + to;
	93	from.erase( 0, 1 ); // remove 2nd encoding
	94	} else {
	95	to = from[0] + to;
	96	} // if
[15697ff]	97	} // if
	98	from.erase( 0, 1 ); // remove 2nd encoding
	99	} // if
	100	to += " " + from; // concatenated into single string
	101	return true;
[7bf7fb9]	102	} // appendStr
[c0aa336]	103
[d8454b9]	104	DeclarationNode * distAttr( DeclarationNode * typeSpec, DeclarationNode * declList ) {
[4eb3a7c5]	105	// Distribute type specifier across all declared variables, e.g., static, const, __attribute__.
[d8454b9]	106	assert( declList );
	107
[4eb3a7c5]	108	// Do not distribute attributes for aggregates because the attributes surrounding the aggregate belong it not the
	109	// variables in the declaration list, e.g.,
	110	//
	111	// struct __attribute__(( aligned(128) )) S { ...
	112	// } v1 __attribute__(( aligned(64) )), v2 __attribute__(( aligned(32) )), v3;
	113	// struct S v4;
	114	//
	115	// v1 => 64, v2 =>32, v3 => 128, v2 => 128
	116	//
	117	// Anonymous aggregates are a special case because there is no aggregate to bind the attribute to; hence it floats
	118	// to the declaration list.
	119	//
	120	// struct __attribute__(( aligned(128) )) /anonymous / { ... } v1;
	121	//
	122	// v1 => 128
	123
	124	bool copyattr = ! (typeSpec->type && typeSpec->type->kind == TypeData::Aggregate && ! typeSpec->type->aggregate.anon );
	125
	126	// addType copies the type information for the aggregate instances from typeSpec into cl's aggInst.aggregate.
	127	DeclarationNode * cl = (new DeclarationNode)->addType( typeSpec ); // typeSpec IS DELETED!!!
	128
[647e2ea]	129	// Start at second variable in declaration list and clone the type specifiers for each variable.
[44adf1b]	130	for ( DeclarationNode * cur = declList->next ; cur != nullptr; cur = cur->next ) {
[4eb3a7c5]	131	cl->cloneBaseType( cur, copyattr ); // cur is modified
[c0aa336]	132	} // for
[4eb3a7c5]	133
	134	// Add first variable in declaration list with hidden type information in aggInst.aggregate, which is used by
	135	// extractType to recover the type for the aggregate instances.
	136	declList->addType( cl, copyattr ); // cl IS DELETED!!!
[c0aa336]	137	return declList;
	138	} // distAttr
	139
	140	void distExt( DeclarationNode * declaration ) {
	141	// distribute EXTENSION across all declarations
[44adf1b]	142	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[c0aa336]	143	iter->set_extension( true );
	144	} // for
	145	} // distExt
[fdca7c6]	146
[e07caa2]	147	void distInl( DeclarationNode * declaration ) {
[5695645]	148	// distribute INLINE across all declarations
[44adf1b]	149	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[e07caa2]	150	iter->set_inLine( true );
	151	} // for
	152	} // distInl
	153
[4c3ee8d]	154	void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) {
[284da8c]	155	// distribute qualifiers across all non-variable declarations in a distribution statemement
[44adf1b]	156	for ( DeclarationNode * iter = declaration ; iter != nullptr ; iter = iter->next ) {
[284da8c]	157	// SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since
	158	// addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To
	159	// get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to
	160	// be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers.
	161	DeclarationNode * clone = qualifiers->clone();
	162	if ( qualifiers->type ) { // forall clause ? (handles SC)
	163	if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ?
	164	swap( clone->type->forall, iter->type->aggregate.params );
	165	iter->addQualifiers( clone );
	166	} else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ?
	167	// Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together.
	168	DeclarationNode newnode;
	169	swap( newnode.type, iter->type->aggInst.aggregate );
	170	swap( clone->type->forall, newnode.type->aggregate.params );
	171	newnode.addQualifiers( clone );
	172	swap( newnode.type, iter->type->aggInst.aggregate );
	173	} else if ( iter->type->kind == TypeData::Function ) { // routines ?
	174	swap( clone->type->forall, iter->type->forall );
	175	iter->addQualifiers( clone );
	176	} // if
	177	} else { // just SC qualifiers
	178	iter->addQualifiers( clone );
	179	} // if
[4c3ee8d]	180	} // for
[284da8c]	181	delete qualifiers;
	182	} // distQual
[4c3ee8d]	183
[c38ae92]	184	// There is an ambiguity for inline generic-routine return-types and generic routines.
	185	// forall( otype T ) struct S { int i; } bar( T ) {}
	186	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	187	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e1]	188	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	189	// forall( otype T ) struct S { int T; };
	190	// forall( otype W ) bar( W ) {}
[c38ae92]	191
	192	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e1]	193	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	194	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	195	declSpec->type->aggregate.params = nullptr;
	196	} // if
	197	} // rebindForall
	198
[60a8062]	199	string * build_postfix_name( string * name ) {
	200	name = string("__postfix_func_") + name;
	201	return name;
[dc7db63]	202	} // build_postfix_name
	203
[f7e4db27]	204	DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) {
[67467a3]	205	if ( nullptr == fieldList ) {
	206	if ( !( typeSpec->type && typeSpec->type->kind == TypeData::Aggregate ) ) {
[f7e4db27]	207	stringstream ss;
[d8454b9]	208	// printf( "fieldDecl1 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	209	SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() );
	210	return nullptr;
	211	} // if
[d8454b9]	212	// printf( "fieldDecl2 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	213	fieldList = DeclarationNode::newName( nullptr );
	214	} // if
[d8454b9]	215
	216	// printf( "fieldDecl3 typeSpec %p\n", typeSpec ); typeSpec->print( std::cout, 0 );
[4eb3a7c5]	217	DeclarationNode * temp = distAttr( typeSpec, fieldList ); // mark all fields in list
[d8454b9]	218	// printf( "fieldDecl4 temp %p\n", temp ); temp->print( std::cout, 0 );
	219	return temp;
[f7e4db27]	220	} // fieldDecl
	221
[bb7422a]	222	#define NEW_ZERO new ExpressionNode( build_constantInteger( yylloc, *new string( "0" ) ) )
	223	#define NEW_ONE new ExpressionNode( build_constantInteger( yylloc, *new string( "1" ) ) )
[52be5948]	224	#define UPDOWN( compop, left, right ) (compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? left : right)
[253d0b4]	225	#define MISSING_ANON_FIELD "illegal syntax, missing loop fields with an anonymous loop index is meaningless as loop index is unavailable in loop body."
[01afd8d]	226	#define MISSING_LOW "illegal syntax, missing low value for ascanding range so index is uninitialized."
	227	#define MISSING_HIGH "illegal syntax, missing high value for descending range so index is uninitialized."
[253d0b4]	228
[089b39e1]	229	static ForCtrl * makeForCtrl( const CodeLocation & location, DeclarationNode * init, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1cdc052]	230	// Wrap both comp/inc if they are non-null.
[bb7422a]	231	if ( comp ) comp = new ExpressionNode( build_binary_val( location,
[1cdc052]	232	compop,
[bb7422a]	233	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	234	comp ) );
[bb7422a]	235	if ( inc ) inc = new ExpressionNode( build_binary_val( location,
[1cdc052]	236	// choose += or -= for upto/downto
	237	compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? OperKinds::PlusAssn : OperKinds::MinusAssn,
[bb7422a]	238	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	239	inc ) );
	240	// The StatementNode call frees init->name, it must happen later.
	241	return new ForCtrl( new StatementNode( init ), comp, inc );
	242	}
	243
[089b39e1]	244	ForCtrl * forCtrl( const CodeLocation & location, DeclarationNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[d78c238]	245	if ( index->initializer ) {
[253d0b4]	246	SemanticError( yylloc, "illegal syntax, direct initialization disallowed. Use instead: type var; initialization ~ comparison ~ increment." );
[d78c238]	247	} // if
	248	if ( index->next ) {
[253d0b4]	249	SemanticError( yylloc, "illegal syntax, multiple loop indexes disallowed in for-loop declaration." );
[d78c238]	250	} // if
[1cdc052]	251	DeclarationNode * initDecl = index->addInitializer( new InitializerNode( start ) );
[bb7422a]	252	return makeForCtrl( location, initDecl, compop, comp, inc );
[d78c238]	253	} // forCtrl
	254
[089b39e1]	255	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, string * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	256	ast::ConstantExpr * constant = dynamic_cast<ast::ConstantExpr *>(type->expr.get());
	257	if ( constant && (constant->rep == "0" \|\| constant->rep == "1") ) {
[7a780ad]	258	type = new ExpressionNode( new ast::CastExpr( location, maybeMoveBuild(type), new ast::BasicType( ast::BasicKind::SignedInt ) ) );
[0982a05]	259	} // if
[1cdc052]	260	DeclarationNode * initDecl = distAttr(
	261	DeclarationNode::newTypeof( type, true ),
	262	DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) )
	263	);
[bb7422a]	264	return makeForCtrl( location, initDecl, compop, comp, inc );
[f271bdd]	265	} // forCtrl
	266
[253d0b4]	267	#define MISSING_LOOP_INDEX "illegal syntax, only a single identifier or declaration allowed in initialization, e.g., for ( i; ... ) or for ( int i; ... ). Expression disallowed."
	268
[089b39e1]	269	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	270	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index->expr.get()) ) {
	271	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
[f1aeede]	272	} else {
[253d0b4]	273	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[f1aeede]	274	} // if
[f271bdd]	275	} // forCtrl
	276
[6d2b3dc]	277	ForCtrl * enumRangeCtrl( ExpressionNode * index_expr, OperKinds compop, ExpressionNode * range_over_expr, DeclarationNode * type ) {
	278	assert( compop == OperKinds::LEThan \|\| compop == OperKinds::GEThan );
[525f7ad]	279	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index_expr->expr.get()) ) {
[6d2b3dc]	280	DeclarationNode * indexDecl =
	281	DeclarationNode::newName( new std::string(identifier->name) )->addType( type );
[d3aa55e9]	282	return new ForCtrl( new StatementNode( indexDecl ), range_over_expr, compop );
[525f7ad]	283	} else {
[253d0b4]	284	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[525f7ad]	285	} // if
	286	} // enumRangeCtrl
	287
[996c8ed]	288	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[253d0b4]	289	SemanticError( yylloc, "illegal syntax, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
[b1f2007d]	290	"Possible cause is misspelled type name or missing generic parameter.",
	291	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	292	} // IdentifierBeforeIdentifier
	293
	294	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[253d0b4]	295	SemanticError( yylloc, "illegal syntax, identifier \"%s\" cannot appear before a %s.\n"
[b1f2007d]	296	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	297	identifier.c_str(), kind );
[996c8ed]	298	} // IdentifierBeforeType
	299
[24711a3]	300	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	301
[201aeb9]	302	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	303	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	304	if ( N ) { \
	305	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	306	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	307	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	308	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	309	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	310	} else { \
	311	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	312	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	313	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	314	}
[51b73452]	315	%}
	316
[15697ff]	317	%define parse.error verbose
	318
[201aeb9]	319	// Types declaration for productions
[7cf8006]	320
[0982a05]	321	%union {
[6cef439]	322	// A raw token can be used.
[a67b60e]	323	Token tok;
[6cef439]	324
	325	// The general node types hold some generic node or list of nodes.
[a67b60e]	326	DeclarationNode * decl;
[6cef439]	327	InitializerNode * init;
	328	ExpressionNode * expr;
[32d6fdc]	329	StatementNode * stmt;
[6611177]	330	ClauseNode * clause;
[6cef439]	331	TypeData * type;
	332
	333	// Special "nodes" containing compound information.
[569b118]	334	CondCtrl * ifctrl;
	335	ForCtrl * forctrl;
[32d6fdc]	336	LabelNode * labels;
[6cef439]	337
	338	// Various flags and single values that become fields later.
	339	ast::AggregateDecl::Aggregate aggKey;
	340	ast::TypeDecl::Kind tclass;
[32d6fdc]	341	OperKinds oper;
	342	bool is_volatile;
	343	EnumHiding enum_hiding;
	344	ast::ExceptionKind except_kind;
[6cef439]	345	// String passes ownership with it.
	346	std::string * str;
	347
	348	// Narrower node types are used to avoid constant unwrapping.
	349	ast::WaitForStmt * wfs;
	350	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	351	ast::GenericExpr * genexpr;
[a67b60e]	352	}
	353
[bb7422a]	354	// ********************** TERMINAL TOKENS ******************************
[51b73452]	355
[c11e31c]	356	// keywords
[51b73452]	357	%token TYPEDEF
[a7c90d4]	358	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	359	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	360	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	361	%token NORETURN // C11
[51b73452]	362	%token CONST VOLATILE
[b87a5ed]	363	%token RESTRICT // C99
[a7c90d4]	364	%token ATOMIC // C11
[1f652a7]	365	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	366	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	367	%token BOOL COMPLEX IMAGINARY // C99
[c5f69fd]	368	%token INT128 UINT128 FLOAT80 uuFLOAT128 // GCC
	369	%token FLOAT16 FLOAT32 FLOAT32X FLOAT64 FLOAT64X FLOAT128 FLOAT128X // GCC
	370	%token FLOAT32X4 FLOAT64X2 SVFLOAT32 SVFLOAT64 SVBOOL // GCC (ARM)
[15f769c]	371	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	372	%token ZERO_T ONE_T // CFA
[a8ced63]	373	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	374	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	375	%token ENUM STRUCT UNION
[c27fb59]	376	%token EXCEPTION // CFA
[553772b]	377	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	378	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	379	// %token RESUME // CFA
[1f652a7]	380	%token LABEL // GCC
[25744d2]	381	%token SUSPEND // CFA
[b87a5ed]	382	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	383	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	384	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	385	%token CORUN COFOR
[4744074]	386	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	387	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	388	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	389
[c11e31c]	390	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	391	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	392	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	393	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	394	%token<tok> DIRECTIVE
[1b29996]	395	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	396	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	397	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	398	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	399
[c11e31c]	400	// multi-character operators
[b87a5ed]	401	%token ARROW // ->
	402	%token ICR DECR // ++ --
	403	%token LS RS // << >>
	404	%token LE GE EQ NE // <= >= == !=
	405	%token ANDAND OROR // && \|\|
[647e2ea]	406	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	407
[e5f2a67]	408	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	409	%token PLUSassign MINUSassign // += -=
	410	%token LSassign RSassign // <<= >>=
	411	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	412
[01afd8d]	413	%token ErangeUp ErangeUpEq ErangeDown ErangeDownEq // +~ +~=/~= -~ -~=
[e7aed49]	414	%token ATassign // @=
[097e2b0]	415
[e16eb460]	416	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	417	%type<tok> quasi_keyword
[32d6fdc]	418	%type<expr> string_literal
[ab57786]	419	%type<str> string_literal_list
[51b73452]	420
[71a422a]	421	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	422
[c11e31c]	423	// expressions
[32d6fdc]	424	%type<expr> constant
[71a422a]	425	%type<expr> tuple tuple_expression_list
[32d6fdc]	426	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	427	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	428	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	429	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	430	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	431	%type<expr> logical_AND_expression logical_OR_expression
	432	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	433	%type<expr> comma_expression comma_expression_opt
	434	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[569b118]	435	%type<ifctrl> conditional_declaration
	436	%type<forctrl> for_control_expression for_control_expression_list
[32d6fdc]	437	%type<oper> upupeq updown updowneq downupdowneq
	438	%type<expr> subrange
[c0aa336]	439	%type<decl> asm_name_opt
[71a422a]	440	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	441	%type<labels> label_list
	442	%type<expr> asm_clobbers_list_opt
	443	%type<is_volatile> asm_volatile_opt
	444	%type<expr> handler_predicate_opt
[67d4e37]	445	%type<genexpr> generic_association generic_assoc_list
[51b73452]	446
[c11e31c]	447	// statements
[71a422a]	448	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	449	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	450	%type<stmt> selection_statement
[71a422a]	451	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	452	%type<expr> case_value
[71a422a]	453	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	454	%type<stmt> iteration_statement jump_statement
[71a422a]	455	%type<stmt> expression_statement asm_statement
[32d6fdc]	456	%type<stmt> with_statement
	457	%type<expr> with_clause_opt
[11ab0b4a]	458	%type<stmt> corun_statement cofor_statement
[32d6fdc]	459	%type<stmt> exception_statement
[6611177]	460	%type<clause> handler_clause finally_clause
[32d6fdc]	461	%type<except_kind> handler_key
	462	%type<stmt> mutex_statement
	463	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	464	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	465	%type<wfs> wor_waitfor_clause
[6e1e2d0]	466	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	467
[c11e31c]	468	// declarations
[c0aa336]	469	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	470	%type<decl> abstract_parameter_declarator_opt abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension
[c0aa336]	471	%type<decl> abstract_parameter_declaration
[51b73452]	472
[e307e12]	473	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	474	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	475
[9997fee]	476	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	477
[32d6fdc]	478	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	479
[84d58c5]	480	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	481	%type<type> basic_type_name_type
	482	%type<type> vtable vtable_opt default_opt
[51b73452]	483
[4040425]	484	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	485
	486	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	487	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	488
[d0ffed1]	489	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	490
[a8ced63]	491	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	492	%type<init> enumerator_value_opt
[51b73452]	493
[3d56d15b]	494	%type<decl> external_definition external_definition_list external_definition_list_opt
	495
	496	%type<decl> exception_declaration
[51b73452]	497
[12f1156]	498	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	499	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	500
[4d51835]	501	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	502
[d3bc0ad]	503	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	504	%type<decl> identifier_list
[51b73452]	505
[c0aa336]	506	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	507	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	508	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	509
[c0aa336]	510	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	511
[679e644]	512	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	513	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	514
[c0aa336]	515	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	516	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	517
[647e2ea]	518	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	519
[c0aa336]	520	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	521
[b9be000b]	522	%type<decl> c_declaration static_assert
[c0aa336]	523	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	524	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	525
[647e2ea]	526	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	527
[2871210]	528	%type<decl> paren_identifier paren_type
[51b73452]	529
[0da3e2c]	530	%type<decl> storage_class storage_class_list
[51b73452]	531
[d0ffed1]	532	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	533
[5a51798]	534	%type<tclass> type_class new_type_class
[51b73452]	535	%type<decl> type_declarator type_declarator_name type_declaring_list
	536
[6cef439]	537	%type<decl> type_declaration_specifier type_type_specifier
	538	%type<type> type_name typegen_name
[f9c3100]	539	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	540
[1f771fc]	541	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	542	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	543
	544	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	545
[84d58c5]	546	%type<decl> type type_no_function
	547	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	548
[647e2ea]	549	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	550
[6cef439]	551	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	552	%type<type> type_qualifier_name
[f9c3100]	553	%type<decl> type_specifier type_specifier_nobody
[51b73452]	554
[c0aa336]	555	%type<decl> variable_declarator variable_ptr variable_array variable_function
	556	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	557
[f9c3100]	558	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	559
[c11e31c]	560	// initializers
[32d6fdc]	561	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	562
[c11e31c]	563	// designators
[32d6fdc]	564	%type<expr> designator designator_list designation
[51b73452]	565
	566
[65d6de4]	567	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	568	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	569	// if ( C ) S1 else S2
	570	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	571	// Similar issues exit with the waitfor statement.
[51b73452]	572
[9fd9d015]	573	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	574	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	575	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	576	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	577	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	578	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	579	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	580	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	583	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	584	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	585	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	586	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	587
[51b73452]	588
[65d6de4]	589	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	590	// forall( otype T ) struct Foo { T v; };
	591	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	592	// Foo ( *fp )( int );
	593	// `---' matches start of TYPEGENname '('
[fc20514]	594	// must be:
[a16a7ec]	595	// Foo( int ) ( *fp )( int );
[fc20514]	596	// The same problem occurs here:
	597	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	598	// must be:
	599	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	600
	601	// Order of these lines matters (low-to-high precedence).
	602	%precedence TYPEGENname
[284da8c]	603	%precedence '}'
[65d6de4]	604	%precedence '('
	605
[c786e1d]	606	// %precedence RESUME
	607	// %precedence '{'
	608	// %precedence ')'
	609
[f38e7d7]	610	%locations // support location tracking for error messages
[930f69e]	611
[b87a5ed]	612	%start translation_unit // parse-tree root
[51b73452]	613
	614	%%
[e1d66c84]	615	// ********************** Namespace Management ******************************
[c11e31c]	616
[3d26610]	617	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	618	// which are lexically identical.
[c11e31c]	619	//
[3d26610]	620	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	621	// foo f; // to allow it to appear in this context
[c11e31c]	622	//
[3d26610]	623	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	624	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	625	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	626	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	627	// must be distinguished by the lexical scanner.
[c11e31c]	628	//
[3d26610]	629	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	630	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	631	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	632	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	633	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	634	// This requires distinguishing between type names that are local to the current declaration scope and those that
	635	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	636	//
[3d26610]	637	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	638	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	639	// around the list separator.
	640	//
[71a422a]	641	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	642	// push pop push pop
[51b73452]	643
	644	push:
[ab57786]	645	{ typedefTable.enterScope(); }
[4d51835]	646	;
[51b73452]	647
	648	pop:
[ab57786]	649	{ typedefTable.leaveScope(); }
[4d51835]	650	;
[51b73452]	651
[e1d66c84]	652	// ********************** CONSTANTS ******************************
[51b73452]	653
	654	constant:
[de62360d]	655	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	656	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	657	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	658	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	659	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	660	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	661	;
[51b73452]	662
[5b2edbc]	663	quasi_keyword: // CFA
	664	TIMEOUT
[9fd9d015]	665	\| WAND
[5b2edbc]	666	\| WOR
[9fb1367]	667	\| CATCH
	668	\| RECOVER
	669	\| CATCHRESUME
	670	\| FIXUP
	671	\| FINALLY
[5b2edbc]	672	;
	673
[033ff37]	674	identifier:
[4d51835]	675	IDENTIFIER
[5b2edbc]	676	\| quasi_keyword
[e16eb460]	677	;
	678
	679	identifier_at:
	680	identifier
[679e644]	681	\| '@' // CFA
	682	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	683	;
[51b73452]	684
[12f1156]	685	identifier_or_type_name:
	686	identifier
	687	\| TYPEDEFname
	688	\| TYPEGENname
	689	;
	690
[ab57786]	691	string_literal:
[32d6fdc]	692	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	693	;
	694
[b87a5ed]	695	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	696	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	697	\| string_literal_list STRINGliteral
	698	{
[15697ff]	699	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	700	delete $2; // allocated by lexer
[ab57786]	701	$$ = $1; // conversion from tok to str
[7bf7fb9]	702	}
[4d51835]	703	;
[51b73452]	704
[e1d66c84]	705	// ********************** EXPRESSIONS ******************************
[51b73452]	706
	707	primary_expression:
[4d51835]	708	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	709	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	710	\| quasi_keyword
[bb7422a]	711	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	712	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	713	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	714	\| tuple
[4d51835]	715	\| '(' comma_expression ')'
	716	{ $$ = $2; }
	717	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	718	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	719	\| type_name '.' identifier // CFA, nested type
[6cef439]	720	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	721	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	722	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	723	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	724	{
	725	// add the missing control expression to the GenericExpr and return it
[702e826]	726	$5->control = maybeMoveBuild( $3 );
[d807ca28]	727	$$ = new ExpressionNode( $5 );
	728	}
[c786e1d]	729	// \| RESUME '(' comma_expression ')'
	730	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	731	// \| RESUME '(' comma_expression ')' compound_statement
	732	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	733	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	734	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	735	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	736	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	737	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	738	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	739	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	740	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	741	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	742	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	743	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	744	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	745	;
	746
	747	generic_assoc_list: // C11
[d807ca28]	748	generic_association
[24c3b67]	749	\| generic_assoc_list ',' generic_association
[d807ca28]	750	{
	751	// steal the association node from the singleton and delete the wrapper
[bb7422a]	752	assert( 1 == $3->associations.size() );
	753	$1->associations.push_back( $3->associations.front() );
[d807ca28]	754	delete $3;
	755	$$ = $1;
	756	}
[24c3b67]	757	;
	758
	759	generic_association: // C11
	760	type_no_function ':' assignment_expression
[d807ca28]	761	{
	762	// create a GenericExpr wrapper with one association pair
[bb7422a]	763	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	764	}
[24c3b67]	765	\| DEFAULT ':' assignment_expression
[bb7422a]	766	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	767	;
[51b73452]	768
	769	postfix_expression:
[4d51835]	770	primary_expression
[1d71208]	771	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	772	// Historic, transitional: Disallow commas in subscripts.
	773	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	774	// Current: Commas in subscripts make tuples.
[b93c544]	775	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	776	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	777	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	778	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	779	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	780	// equivalent to the old x[i,j].
[bb7422a]	781	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	782	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	783	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	784	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	785	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	786	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	787	{
	788	Token fn;
	789	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	790	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	791	}
[cbbd8fd7]	792	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	793	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	794	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
[45ee172]	795	{ $$ = new ExpressionNode( build_va_arg( yylloc, $3, ( $6 ? $6->addType( $5 ) : $5 ) ) ); }
[948fdef]	796	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	797	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	798	\| constant '`' identifier // CFA, postfix call
[bb7422a]	799	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	800	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	801	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	802
	803	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	804	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	805	// them. For example:
	806	//
	807	// struct S;
	808	// forall(T) struct T;
	809	// union U;
	810	// enum E { S, T, E };
	811	// struct Z { int S, T, Z, E, U; };
	812	// void fred () {
	813	// Z z;
	814	// z.S; // lexer returns S is TYPEDEFname
	815	// z.T; // lexer returns T is TYPEGENname
	816	// z.Z; // lexer returns Z is TYPEDEFname
	817	// z.U; // lexer returns U is TYPEDEFname
	818	// z.E; // lexer returns E is TYPEDEFname
	819	// }
[12f1156]	820	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	821	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	822
[df22130]	823	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	824	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	825	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	826	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	827	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	828	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	829	\| postfix_expression '.' aggregate_control
[bb7422a]	830	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	831	\| postfix_expression ARROW identifier
[bb7422a]	832	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	833	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	834	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	835	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	836	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	837	\| postfix_expression ICR
[bb7422a]	838	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	839	\| postfix_expression DECR
[bb7422a]	840	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	841	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	842	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	843	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	844	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	845	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	846	{
[9706554]	847	Token fn;
[ecb27a7]	848	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	849	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	850	}
[4d51835]	851	;
[51b73452]	852
[679e644]	853	field_name_list: // CFA, tuple field selector
[4d51835]	854	field
[b93c544]	855	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	856	;
[b87a5ed]	857
	858	field: // CFA, tuple field selector
[faddbd8]	859	field_name
[930f69e]	860	\| FLOATING_DECIMALconstant field
[bb7422a]	861	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	862	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	863	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	864	\| field_name '.' field
[bb7422a]	865	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	866	\| field_name '.' '[' field_name_list ']'
[bb7422a]	867	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	868	\| field_name ARROW field
[bb7422a]	869	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	870	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	871	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	872	;
[51b73452]	873
[faddbd8]	874	field_name:
[df22130]	875	INTEGERconstant fraction_constants_opt
[bb7422a]	876	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	877	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	878	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	879	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	880	{
[bb7422a]	881	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	882	}
[1b29996]	883	;
	884
[df22130]	885	fraction_constants_opt:
[1b29996]	886	// empty
[8780e30]	887	{ $$ = nullptr; }
[df22130]	888	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	889	{
[bb7422a]	890	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	891	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	892	}
[faddbd8]	893	;
	894
[51b73452]	895	unary_expression:
[4d51835]	896	postfix_expression
[c6b1105]	897	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	898	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	899	\| constant
[ab57786]	900	\| string_literal
[32d6fdc]	901	{ $$ = $1; }
[4d51835]	902	\| EXTENSION cast_expression // GCC
[e04ef3a]	903	{ $$ = $2->set_extension( true ); }
[c6b1105]	904	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	905	// { * X; } // dereference X
	906	// { * int X; } // CFA declaration of pointer to int
[51e076e]	907	\| ptrref_operator cast_expression // CFA
[9706554]	908	{
	909	switch ( $1 ) {
[bb7422a]	910	case OperKinds::AddressOf:
	911	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	912	break;
[bb7422a]	913	case OperKinds::PointTo:
	914	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	915	break;
[bb7422a]	916	case OperKinds::And:
	917	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	918	break;
[bb7422a]	919	default:
[9706554]	920	assert( false );
	921	}
	922	}
[4d51835]	923	\| unary_operator cast_expression
[bb7422a]	924	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	925	\| ICR unary_expression
[bb7422a]	926	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	927	\| DECR unary_expression
[bb7422a]	928	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	929	\| SIZEOF unary_expression
[b6f2e7ab]	930	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[84d58c5]	931	\| SIZEOF '(' type_no_function ')'
[bb7422a]	932	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	933	\| ALIGNOF unary_expression // GCC, variable alignment
[b6f2e7ab]	934	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[a2e0687]	935	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	936	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	937
	938	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	939	// look ahead, so the cfa_abstract_function is factored out.
	940	\| SIZEOF '(' cfa_abstract_function ')'
	941	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	942	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	943	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	944
[033ff37]	945	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	946	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	947	\| TYPEID '(' type ')'
[1f652a7]	948	{
	949	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	950	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	951	}
[0c327ce]	952	\| COUNTOF unary_expression
[4941716]	953	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	954	\| COUNTOF '(' type_no_function ')'
	955	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	956	;
[51b73452]	957
[dd51906]	958	ptrref_operator:
[d9e2280]	959	'*' { $$ = OperKinds::PointTo; }
	960	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	961	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	962	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	963	;
	964
[51b73452]	965	unary_operator:
[d9e2280]	966	'+' { $$ = OperKinds::UnPlus; }
	967	\| '-' { $$ = OperKinds::UnMinus; }
	968	\| '!' { $$ = OperKinds::Neg; }
	969	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	970	;
[51b73452]	971
	972	cast_expression:
[4d51835]	973	unary_expression
[84d58c5]	974	\| '(' type_no_function ')' cast_expression
[bb7422a]	975	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	976	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	977	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	978	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	979	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	980	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	981	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	982	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	983	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	984	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	985	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	986	\| '(' COERCE type_no_function ')' cast_expression // CFA
	987	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	988	\| '(' qualifier_cast_list ')' cast_expression // CFA
	989	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	990	// \| '(' type_no_function ')' tuple
[bb7422a]	991	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	992	;
[51b73452]	993
[1528a2c]	994	qualifier_cast_list:
	995	cast_modifier type_qualifier_name
	996	\| cast_modifier MUTEX
	997	\| qualifier_cast_list cast_modifier type_qualifier_name
	998	\| qualifier_cast_list cast_modifier MUTEX
	999	;
	1000
	1001	cast_modifier:
	1002	'-'
	1003	\| '+'
	1004	;
	1005
[994d080]	1006	exponential_expression:
[4d51835]	1007	cast_expression
[994d080]	1008	\| exponential_expression '\\' cast_expression
[bb7422a]	1009	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1010	;
	1011
	1012	multiplicative_expression:
	1013	exponential_expression
	1014	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1015	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1016	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1017	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1018	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1019	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1020	;
[51b73452]	1021
	1022	additive_expression:
[4d51835]	1023	multiplicative_expression
	1024	\| additive_expression '+' multiplicative_expression
[bb7422a]	1025	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1026	\| additive_expression '-' multiplicative_expression
[bb7422a]	1027	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1028	;
[51b73452]	1029
	1030	shift_expression:
[4d51835]	1031	additive_expression
	1032	\| shift_expression LS additive_expression
[bb7422a]	1033	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1034	\| shift_expression RS additive_expression
[bb7422a]	1035	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1036	;
[51b73452]	1037
	1038	relational_expression:
[4d51835]	1039	shift_expression
	1040	\| relational_expression '<' shift_expression
[bb7422a]	1041	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1042	\| relational_expression '>' shift_expression
[bb7422a]	1043	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1044	\| relational_expression LE shift_expression
[bb7422a]	1045	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1046	\| relational_expression GE shift_expression
[bb7422a]	1047	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1048	;
[51b73452]	1049
	1050	equality_expression:
[4d51835]	1051	relational_expression
	1052	\| equality_expression EQ relational_expression
[bb7422a]	1053	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1054	\| equality_expression NE relational_expression
[bb7422a]	1055	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1056	;
[51b73452]	1057
	1058	AND_expression:
[4d51835]	1059	equality_expression
	1060	\| AND_expression '&' equality_expression
[bb7422a]	1061	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1062	;
[51b73452]	1063
	1064	exclusive_OR_expression:
[4d51835]	1065	AND_expression
	1066	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1067	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1068	;
[51b73452]	1069
	1070	inclusive_OR_expression:
[4d51835]	1071	exclusive_OR_expression
	1072	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1073	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1074	;
[51b73452]	1075
	1076	logical_AND_expression:
[4d51835]	1077	inclusive_OR_expression
	1078	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1079	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1080	;
[51b73452]	1081
	1082	logical_OR_expression:
[4d51835]	1083	logical_AND_expression
	1084	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1085	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1086	;
[51b73452]	1087
	1088	conditional_expression:
[4d51835]	1089	logical_OR_expression
	1090	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1091	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1092	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1093	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1094	;
[51b73452]	1095
	1096	constant_expression:
[4d51835]	1097	conditional_expression
	1098	;
[51b73452]	1099
[c1b0b8f]	1100	argument_expression_list_opt:
	1101	// empty
	1102	{ $$ = nullptr; }
	1103	\| argument_expression_list
	1104	;
	1105
	1106	argument_expression_list:
	1107	argument_expression
	1108	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1109	\| argument_expression_list ',' argument_expression // no empty argument
	1110	{ $$ = $1->set_last( $3 ); }
	1111	;
	1112
	1113	argument_expression:
	1114	'?' // CFA, default parameter
[daa4cc1]	1115	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1116	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1117	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1118	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1119	{ $$ = $4; }
[c1b0b8f]	1120	\| assignment_expression
	1121	;
	1122
[51b73452]	1123	assignment_expression:
[4d51835]	1124	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1125	conditional_expression
	1126	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1127	{
[25744d2]	1128	// if ( $2 == OperKinds::AtAssn ) {
	1129	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1130	// } else {
[bb7422a]	1131	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1132	// } // if
[9867cdb]	1133	}
[7fdb94e1]	1134	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1135	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1136	;
[51b73452]	1137
	1138	assignment_expression_opt:
[4d51835]	1139	// empty
[d1625f8]	1140	{ $$ = nullptr; }
[4d51835]	1141	\| assignment_expression
	1142	;
[b87a5ed]	1143
[9706554]	1144	assignment_operator:
[f9c3100]	1145	simple_assignment_operator
	1146	\| compound_assignment_operator
	1147	;
	1148
	1149	simple_assignment_operator:
[d9e2280]	1150	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1151	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1152	;
	1153
	1154	compound_assignment_operator:
	1155	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1156	\| MULTassign { $$ = OperKinds::MulAssn; }
	1157	\| DIVassign { $$ = OperKinds::DivAssn; }
	1158	\| MODassign { $$ = OperKinds::ModAssn; }
	1159	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1160	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1161	\| LSassign { $$ = OperKinds::LSAssn; }
	1162	\| RSassign { $$ = OperKinds::RSAssn; }
	1163	\| ANDassign { $$ = OperKinds::AndAssn; }
	1164	\| ERassign { $$ = OperKinds::ERAssn; }
	1165	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1166	;
[9706554]	1167
[b87a5ed]	1168	tuple: // CFA, tuple
[de62360d]	1169	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1170	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1171	// '[' ']'
	1172	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1173	// \| '[' push assignment_expression pop ']'
[1b29996]	1174	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1175	'[' ',' tuple_expression_list ']'
[b93c544]	1176	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1177	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1178	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1179	;
[51b73452]	1180
	1181	tuple_expression_list:
[0a6d8204]	1182	assignment_expression
	1183	\| '@' // CFA
	1184	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1185	\| tuple_expression_list ',' assignment_expression
[b93c544]	1186	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1187	\| tuple_expression_list ',' '@'
	1188	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1189	;
[51b73452]	1190
	1191	comma_expression:
[4d51835]	1192	assignment_expression
[9706554]	1193	\| comma_expression ',' assignment_expression
[bb7422a]	1194	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1195	;
[51b73452]	1196
	1197	comma_expression_opt:
[4d51835]	1198	// empty
[58dd019]	1199	{ $$ = nullptr; }
[4d51835]	1200	\| comma_expression
	1201	;
[51b73452]	1202
[e1d66c84]	1203	// ************************ STATEMENTS *****************************
[51b73452]	1204
	1205	statement:
[4d51835]	1206	labeled_statement
	1207	\| compound_statement
[c0a33d2]	1208	\| expression_statement
[4d51835]	1209	\| selection_statement
	1210	\| iteration_statement
	1211	\| jump_statement
[8b47e50]	1212	\| with_statement
[b6b3c42]	1213	\| mutex_statement
[5b2edbc]	1214	\| waitfor_statement
[9fd9d015]	1215	\| waituntil_statement
[11ab0b4a]	1216	\| corun_statement
	1217	\| cofor_statement
[4d51835]	1218	\| exception_statement
[2a8427c6]	1219	\| enable_disable_statement
[fae90d5f]	1220	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1221	\| asm_statement
[61fc4f6]	1222	\| DIRECTIVE
[bb7422a]	1223	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1224	;
[51b73452]	1225
	1226	labeled_statement:
[033ff37]	1227	// labels cannot be identifiers 0 or 1
[44a81853]	1228	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1229	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1230	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1231	{
[b1f2007d]	1232	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1233	"where a declaration, case, or default is not a statement.\n"
	1234	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1235	$$ = nullptr;
	1236	}
[4d51835]	1237	;
[51b73452]	1238
	1239	compound_statement:
[4d51835]	1240	'{' '}'
[bb7422a]	1241	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1242	\| '{' push
[5e25953]	1243	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1244	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1245	pop '}'
[bb7422a]	1246	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1247	;
[b87a5ed]	1248
[9bd6105]	1249	statement_decl_list: // C99
	1250	statement_decl
[35718a9]	1251	\| statement_decl_list statement_decl
[6d01d89]	1252	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1253	;
[51b73452]	1254
[9bd6105]	1255	statement_decl:
[4d51835]	1256	declaration // CFA, new & old style declarations
[e82aa9df]	1257	{ $$ = new StatementNode( $1 ); }
[4d51835]	1258	\| EXTENSION declaration // GCC
[6d01d89]	1259	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1260	\| function_definition
[e82aa9df]	1261	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1262	\| EXTENSION function_definition // GCC
[6d01d89]	1263	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1264	\| statement
[4d51835]	1265	;
[51b73452]	1266
[9bd6105]	1267	statement_list_nodecl:
[4d51835]	1268	statement
[9bd6105]	1269	\| statement_list_nodecl statement
[6d01d89]	1270	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1271	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1272	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1273	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1274	;
[51b73452]	1275
	1276	expression_statement:
[4d51835]	1277	comma_expression_opt ';'
[bb7422a]	1278	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1279	;
[51b73452]	1280
[7e13b11]	1281	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1282	// parenthesis:
	1283	//
[446740a]	1284	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1285	//
[7e13b11]	1286	// switch O { }
	1287	//
	1288	// O{} => object-constructor for conditional, switch body ???
	1289	// O{} => O for conditional followed by switch body
	1290	//
	1291	// C++ has this problem, as it has the same constructor syntax.
	1292	//
	1293	// switch sizeof ( T ) { }
	1294	//
	1295	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1296	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1297	//
	1298	// Note the two grammar rules for sizeof (alignof)
	1299	//
	1300	// \| SIZEOF unary_expression
	1301	// \| SIZEOF '(' type_no_function ')'
	1302	//
	1303	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1304
[51b73452]	1305	selection_statement:
[647e2ea]	1306	IF '(' conditional_declaration ')' statement %prec THEN
	1307	// explicitly deal with the shift/reduce conflict on if/else
	1308	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1309	\| IF '(' conditional_declaration ')' statement ELSE statement
	1310	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1311	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1312	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1313	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1314	{
[bb7422a]	1315	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1316	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1317	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1318	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1319	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1320	// statement.
[b93c544]	1321	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1322	}
[0442f93f]	1323	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1324	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1325	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1326	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1327	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1328	{
[bb7422a]	1329	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1330	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1331	}
[0442f93f]	1332	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1333	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1334	;
[b87a5ed]	1335
[473d1da0]	1336	conditional_declaration:
[35718a9]	1337	comma_expression
[569b118]	1338	{ $$ = new CondCtrl( nullptr, $1 ); }
[35718a9]	1339	\| c_declaration // no semi-colon
[569b118]	1340	{ $$ = new CondCtrl( $1, nullptr ); }
[35718a9]	1341	\| cfa_declaration // no semi-colon
[569b118]	1342	{ $$ = new CondCtrl( $1, nullptr ); }
[6d49ea3]	1343	\| declaration comma_expression // semi-colon separated
[569b118]	1344	{ $$ = new CondCtrl( $1, $2 ); }
[9fd9d015]	1345	;
[936e9f4]	1346
[de62360d]	1347	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1348	// clause allows a list of values and subranges.
[b87a5ed]	1349
	1350	case_value: // CFA
[4d51835]	1351	constant_expression { $$ = $1; }
	1352	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1353	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1354	\| subrange // CFA, subrange
	1355	;
[b87a5ed]	1356
	1357	case_value_list: // CFA
[6611177]	1358	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1359	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1360	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1361	;
[b87a5ed]	1362
	1363	case_label: // CFA
[0442f93f]	1364	CASE error // invalid syntax rule
[253d0b4]	1365	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1366	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1367	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1368	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1369	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1370	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1371	\| DEFAULT error // invalid syntax rule
[253d0b4]	1372	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1373	;
[b87a5ed]	1374
	1375	case_label_list: // CFA
[4d51835]	1376	case_label
[6611177]	1377	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1378	;
[b87a5ed]	1379
	1380	case_clause: // CFA
[bb7422a]	1381	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1382	;
[b87a5ed]	1383
	1384	switch_clause_list_opt: // CFA
[4d51835]	1385	// empty
[58dd019]	1386	{ $$ = nullptr; }
[4d51835]	1387	\| switch_clause_list
	1388	;
[b87a5ed]	1389
	1390	switch_clause_list: // CFA
[9bd6105]	1391	case_label_list statement_list_nodecl
[bb7422a]	1392	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1393	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1394	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1395	;
[b87a5ed]	1396
[51b73452]	1397	iteration_statement:
[5695645]	1398	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[569b118]	1399	{ $$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1400	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1401	{
[569b118]	1402	$$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1403	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1404	}
[473d1da0]	1405	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1406	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1407	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1408	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1409	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1410	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1411	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1412	{
[bb7422a]	1413	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1414	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1415	}
	1416	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1417	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1418	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1419	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1420	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1421	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1422	\| FOR '(' ')' statement ELSE statement // CFA
	1423	{
[bb7422a]	1424	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1425	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1426	}
[efc8f3e]	1427	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1428	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1429	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1430	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1431	;
	1432
[6d01d89]	1433	for_control_expression_list:
	1434	for_control_expression
	1435	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1436	// ForCtrl + ForCtrl:
	1437	// init + init => multiple declaration statements that are hoisted
	1438	// condition + condition => (expression) && (expression)
	1439	// change + change => (expression), (expression)
	1440	{
	1441	$1->init->set_last( $3->init );
	1442	if ( $1->condition ) {
	1443	if ( $3->condition ) {
[bb7422a]	1444	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1445	} // if
	1446	} else $1->condition = $3->condition;
	1447	if ( $1->change ) {
	1448	if ( $3->change ) {
[bb7422a]	1449	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1450	} // if
	1451	} else $1->change = $3->change;
	1452	$$ = $1;
	1453	}
[6d01d89]	1454	;
	1455
[51b73452]	1456	for_control_expression:
[6d01d89]	1457	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1458	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1459	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1460	{
[253d0b4]	1461	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1462	}
[6d01d89]	1463	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1464	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1465
[aa122e9]	1466	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1467	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1468	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1469	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1470
[aa122e9]	1471	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1472	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1473	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1474	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1475
[aa122e9]	1476	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1477	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1478	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1479	{
[4fee301]	1480	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1481	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1482	}
[aa122e9]	1483	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1484	{
[4fee301]	1485	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1486	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1487	}
[aa122e9]	1488	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1489	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1490	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1491	{
[4fee301]	1492	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1493	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1494	}
[aa122e9]	1495	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1496	{
[4fee301]	1497	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1498	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1499	}
[65ef0cd]	1500	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1501	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1502	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1503	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1504	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1505	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1506	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1507	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1508	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1509	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1510
[089b39e1]	1511	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1512	// permissive allows for a better error message from forCtrl.
[f1aeede]	1513	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1514	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1515	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1516	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1517
[d78c238]	1518	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1519	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1520	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1521	{
[4fee301]	1522	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1523	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1524	}
[52be5948]	1525	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1526	{
[4fee301]	1527	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1528	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1529	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1530	}
[65ef0cd]	1531	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1532	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1533
	1534	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1535	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1536	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1537	{
[4fee301]	1538	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1539	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1540	}
[52be5948]	1541	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1542	{
[4fee301]	1543	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1544	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1545	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1546	}
	1547	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1548	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1549	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1550	{
[4fee301]	1551	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1552	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1553	}
[52be5948]	1554	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1555	{
[4fee301]	1556	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1557	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1558	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1559	}
[dbedd71]	1560	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1561	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1562
[569b118]	1563	// \| '@' identifier ';' comma_expression // CFA
[d78c238]	1564	\| declaration comma_expression // CFA
[bb7422a]	1565	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1566	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1567	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1568
[d78c238]	1569	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1570	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1571	\| declaration '@' updowneq comma_expression // CFA
	1572	{
[4fee301]	1573	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1574	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1575	}
[52be5948]	1576	\| declaration comma_expression updowneq '@' // CFA
	1577	{
[4fee301]	1578	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1579	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1580	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1581	}
[d78c238]	1582
	1583	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1584	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1585	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1586	{
[4fee301]	1587	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1588	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1589	}
[52be5948]	1590	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1591	{
[4fee301]	1592	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1593	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1594	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1595	}
	1596	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1597	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1598	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1599	{
[4fee301]	1600	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1601	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1602	}
[52be5948]	1603	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1604	{
[4fee301]	1605	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1606	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1607	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1608	}
[65ef0cd]	1609	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[01afd8d]	1610	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1611
[6d2b3dc]	1612	\| comma_expression ';' type_type_specifier // CFA, enum type
[ca33b15]	1613	{
[6d2b3dc]	1614	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->clone()->buildType() ) ), $3 );
[ca33b15]	1615	}
[a8ced63]	1616	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1617	{
[55ba259e]	1618	if ( $3 == OperKinds::GThan ) {
	1619	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1620	$3 = OperKinds::GEThan;
	1621	} // if
[6d2b3dc]	1622	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1623	}
[9fd9d015]	1624	;
[98337569]	1625
[a8ced63]	1626	enum_key:
	1627	type_name
[4941716]	1628	{
	1629	typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1630	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false );
	1631	}
[a8ced63]	1632	\| ENUM identifier
[4941716]	1633	{
	1634	typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1635	$$ = DeclarationNode::newEnum( $2, nullptr, false, false );
	1636	}
[a8ced63]	1637	\| ENUM type_name
[4941716]	1638	{
	1639	typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1640	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false );
	1641	}
[a8ced63]	1642	;
	1643
[55ba259e]	1644	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1645	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1646	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1647	downupdowneq:
[01afd8d]	1648	ErangeUp
	1649	{ $$ = OperKinds::LThan; }
	1650	\| ErangeDown
[d78c238]	1651	{ $$ = OperKinds::GThan; }
	1652	\| ErangeUpEq
	1653	{ $$ = OperKinds::LEThan; }
	1654	\| ErangeDownEq
	1655	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1656	;
[51b73452]	1657
[d78c238]	1658	updown:
[01afd8d]	1659	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1660	{ $$ = OperKinds::LThan; }
	1661	\| ErangeUp
[cc22003]	1662	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1663	\| ErangeDown
	1664	{ $$ = OperKinds::GThan; }
[9fd9d015]	1665	;
[d78c238]	1666
	1667	updowneq:
	1668	updown
	1669	\| ErangeUpEq
	1670	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1671	\| ErangeDownEq
	1672	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1673	;
[cc22003]	1674
[51b73452]	1675	jump_statement:
[44a81853]	1676	GOTO identifier_or_type_name ';'
[bb7422a]	1677	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1678	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1679	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1680	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1681	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1682	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1683	\| fall_through_name ';' // CFA
[bb7422a]	1684	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1685	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1686	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1687	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1688	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1689	\| CONTINUE ';'
[de62360d]	1690	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1691	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1692	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1693	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1694	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1695	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1696	\| BREAK ';'
[de62360d]	1697	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1698	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1699	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1700	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1701	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1702	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1703	\| RETURN comma_expression_opt ';'
[bb7422a]	1704	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1705	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1706	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1707	\| SUSPEND ';'
[bb7422a]	1708	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1709	\| SUSPEND compound_statement
[bb7422a]	1710	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1711	\| SUSPEND COROUTINE ';'
[bb7422a]	1712	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1713	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1714	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1715	\| SUSPEND GENERATOR ';'
[bb7422a]	1716	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1717	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1718	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1719	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1720	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1721	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1722	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1723	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1724	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1725	;
[51b73452]	1726
[6a276a0]	1727	fall_through_name: // CFA
	1728	FALLTHRU
	1729	\| FALLTHROUGH
	1730	;
	1731
[8b47e50]	1732	with_statement:
[e78966e]	1733	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1734	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1735	;
	1736
[bf20567]	1737	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1738	mutex_statement:
[bf20567]	1739	MUTEX '(' argument_expression_list_opt ')' statement
	1740	{
[253d0b4]	1741	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1742	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1743	}
[b6b3c42]	1744	;
	1745
[51d6d6a]	1746	when_clause:
[6a276a0]	1747	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1748	;
	1749
[5b2edbc]	1750	when_clause_opt:
	1751	// empty
[135b431]	1752	{ $$ = nullptr; }
[51d6d6a]	1753	\| when_clause
[5b2edbc]	1754	;
	1755
[4a063df]	1756	cast_expression_list:
	1757	cast_expression
	1758	\| cast_expression_list ',' cast_expression
[a491a3c]	1759	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1760	;
	1761
	1762	timeout:
[9fd9d015]	1763	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1764	;
	1765
[9fd9d015]	1766	wor:
	1767	OROR
	1768	\| WOR
	1769
	1770	waitfor:
	1771	WAITFOR '(' cast_expression ')'
	1772	{ $$ = $3; }
	1773	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1774	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1775	;
	1776
[9fd9d015]	1777	wor_waitfor_clause:
[51d6d6a]	1778	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1779	// Called first: create header for WaitForStmt.
[bb7422a]	1780	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1781	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1782	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1783	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1784	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1785	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1786	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1787	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1788	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1789	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1790	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1791	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1792	;
	1793
	1794	waitfor_statement:
[9fd9d015]	1795	wor_waitfor_clause %prec THEN
	1796	{ $$ = new StatementNode( $1 ); }
	1797	;
	1798
	1799	wand:
	1800	ANDAND
	1801	\| WAND
	1802	;
	1803
	1804	waituntil:
[04c78215]	1805	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1806	{ $$ = $3; }
	1807	;
	1808
	1809	waituntil_clause:
	1810	when_clause_opt waituntil statement
[c86b08d]	1811	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1812	\| '(' wor_waituntil_clause ')'
[c86b08d]	1813	{ $$ = $2; }
[9fd9d015]	1814	;
	1815
	1816	wand_waituntil_clause:
	1817	waituntil_clause %prec THEN
[c86b08d]	1818	{ $$ = $1; }
[9fd9d015]	1819	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1820	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1821	;
	1822
	1823	wor_waituntil_clause:
	1824	wand_waituntil_clause
[c86b08d]	1825	{ $$ = $1; }
[70056ed]	1826	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1827	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1828	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1829	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1830	;
	1831
	1832	waituntil_statement:
	1833	wor_waituntil_clause %prec THEN
[f259682]	1834	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1835	;
	1836
[11ab0b4a]	1837	corun_statement:
	1838	CORUN statement
[eb779d5]	1839	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1840	;
	1841
	1842	cofor_statement:
	1843	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1844	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1845	;
	1846
[51b73452]	1847	exception_statement:
[bb7422a]	1848	TRY compound_statement handler_clause %prec THEN
	1849	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1850	\| TRY compound_statement finally_clause
[bb7422a]	1851	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1852	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1853	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1854	;
[51b73452]	1855
	1856	handler_clause:
[206ecae]	1857	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1858	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1859	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1860	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1861	;
	1862
	1863	handler_predicate_opt:
[7fdb94e1]	1864	// empty
[cbce272]	1865	{ $$ = nullptr; }
[6a276a0]	1866	\| ';' conditional_expression { $$ = $2; }
[307a732]	1867	;
	1868
	1869	handler_key:
[bb7422a]	1870	CATCH { $$ = ast::Terminate; }
	1871	\| RECOVER { $$ = ast::Terminate; }
	1872	\| CATCHRESUME { $$ = ast::Resume; }
	1873	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1874	;
[51b73452]	1875
	1876	finally_clause:
[6611177]	1877	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1878	;
[51b73452]	1879
	1880	exception_declaration:
[d0ffed1]	1881	// No SUE declaration in parameter list.
	1882	type_specifier_nobody
	1883	\| type_specifier_nobody declarator
[c0a33d2]	1884	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1885	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1886	{ $$ = $2->addType( $1 ); }
[033ff37]	1887	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1888	{ $$ = $1->addName( $2 ); }
[c0aa336]	1889	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1890	;
[51b73452]	1891
[2a8427c6]	1892	enable_disable_statement:
	1893	enable_disable_key identifier_list compound_statement
	1894	;
	1895
	1896	enable_disable_key:
	1897	ENABLE
	1898	\| DISABLE
	1899	;
	1900
[51b73452]	1901	asm_statement:
[ab57786]	1902	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1903	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1904	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1905	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1906	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1907	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1908	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1909	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1910	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1911	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1912	;
	1913
	1914	asm_volatile_opt: // GCC
	1915	// empty
	1916	{ $$ = false; }
	1917	\| VOLATILE
	1918	{ $$ = true; }
[4d51835]	1919	;
[b87a5ed]	1920
	1921	asm_operands_opt: // GCC
[4d51835]	1922	// empty
[58dd019]	1923	{ $$ = nullptr; } // use default argument
[4d51835]	1924	\| asm_operands_list
	1925	;
[b87a5ed]	1926
	1927	asm_operands_list: // GCC
[4d51835]	1928	asm_operand
	1929	\| asm_operands_list ',' asm_operand
[b93c544]	1930	{ $$ = $1->set_last( $3 ); }
[4d51835]	1931	;
[b87a5ed]	1932
	1933	asm_operand: // GCC
[ab57786]	1934	string_literal '(' constant_expression ')'
[32d6fdc]	1935	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1936	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1937	{
[32d6fdc]	1938	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1939	delete $2.str;
	1940	}
[7f5566b]	1941	;
	1942
[4e06c1e]	1943	asm_clobbers_list_opt: // GCC
[7f5566b]	1944	// empty
[58dd019]	1945	{ $$ = nullptr; } // use default argument
[ab57786]	1946	\| string_literal
[32d6fdc]	1947	{ $$ = $1; }
[ab57786]	1948	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1949	{ $$ = $1->set_last( $3 ); }
[4d51835]	1950	;
[b87a5ed]	1951
[7f5566b]	1952	label_list:
[033ff37]	1953	identifier
[ab57786]	1954	{
[bb7422a]	1955	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1956	delete $1; // allocated by lexer
	1957	}
[033ff37]	1958	\| label_list ',' identifier
[ab57786]	1959	{
[bb7422a]	1960	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1961	delete $3; // allocated by lexer
	1962	}
[4d51835]	1963	;
[51b73452]	1964
[e1d66c84]	1965	// **************************** DECLARATIONS *******************************
[51b73452]	1966
[b87a5ed]	1967	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1968	// empty
[58dd019]	1969	{ $$ = nullptr; }
[4d51835]	1970	\| declaration_list
	1971	;
[51b73452]	1972
	1973	declaration_list:
[4d51835]	1974	declaration
[647e2ea]	1975	\| declaration_list declaration
	1976	{ $$ = $1->set_last( $2 ); }
[4d51835]	1977	;
[51b73452]	1978
[407bde5]	1979	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1980	// empty
[58dd019]	1981	{ $$ = nullptr; }
[35718a9]	1982	\| KR_parameter_list
[4d51835]	1983	;
[51b73452]	1984
[35718a9]	1985	KR_parameter_list:
[c25f16b]	1986	c_declaration ';'
	1987	{ $$ = $1; }
	1988	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1989	{ $$ = $1->set_last( $2 ); }
[4d51835]	1990	;
[b87a5ed]	1991
[51b1202]	1992	local_label_declaration_opt: // GCC, local label
[4d51835]	1993	// empty
[51b1202]	1994	\| local_label_declaration_list
[4d51835]	1995	;
[b87a5ed]	1996
[51b1202]	1997	local_label_declaration_list: // GCC, local label
	1998	LABEL local_label_list ';'
	1999	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	2000	;
[b87a5ed]	2001
[51b1202]	2002	local_label_list: // GCC, local label
[033ff37]	2003	identifier_or_type_name
	2004	\| local_label_list ',' identifier_or_type_name
[4d51835]	2005	;
[b87a5ed]	2006
[936e9f4]	2007	declaration: // old & new style declarations
[35718a9]	2008	c_declaration ';'
	2009	\| cfa_declaration ';' // CFA
[b9f6791f]	2010	\| static_assert ';' // C11
[4d51835]	2011	;
[b87a5ed]	2012
[b9be000b]	2013	static_assert:
[b9f6791f]	2014	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2015	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2016	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2017	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2018
[de62360d]	2019	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2020	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2021	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2022	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2023	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2024	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2025	//
[b87a5ed]	2026	// CFA C
	2027	// [10] int x; int x[10]; // array of 10 integers
	2028	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2029
[c0aa336]	2030	cfa_declaration: // CFA
[4cc585b]	2031	cfa_variable_declaration
	2032	\| cfa_typedef_declaration
	2033	\| cfa_function_declaration
	2034	\| type_declaring_list
[2501ae5]	2035	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2036	\| trait_specifier
[4d51835]	2037	;
[b87a5ed]	2038
[c0aa336]	2039	cfa_variable_declaration: // CFA
	2040	cfa_variable_specifier initializer_opt
[7fdb94e1]	2041	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2042	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2043	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2044	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2045	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2046	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2047	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2048	;
[b87a5ed]	2049
[c0aa336]	2050	cfa_variable_specifier: // CFA
[de62360d]	2051	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2052	// storage-class
[c0aa336]	2053	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2054	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2055	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2056	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2057	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2058	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2059
	2060	// [ int s, int t ]; // declare s and t
	2061	// [ int, int ] f();
	2062	// [] g( int );
	2063	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2064	// g( x + y );
	2065	\| cfa_function_return asm_name_opt
	2066	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2067	\| type_qualifier_list cfa_function_return asm_name_opt
	2068	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2069	;
[b87a5ed]	2070
[c0aa336]	2071	cfa_function_declaration: // CFA
	2072	cfa_function_specifier
	2073	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2074	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2075	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2076	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2077	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2078	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2079	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2080	{
[481115f]	2081	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2082	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2083	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2084	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2085	}
	2086	;
[b87a5ed]	2087
[c0aa336]	2088	cfa_function_specifier: // CFA
[647e2ea]	2089	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2090	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2091	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2092	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2093	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2094	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2095
[2871210]	2096	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2097	//
[647e2ea]	2098	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2099	// '[' ']' type_specifier
	2100	//
[2871210]	2101	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2102	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2103	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2104	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2105	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2106	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2107	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2108	;
[b87a5ed]	2109
[c0aa336]	2110	cfa_function_return: // CFA
[c0a33d2]	2111	'[' push cfa_parameter_list pop ']'
	2112	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2113	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2114	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2115	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2116	;
[b87a5ed]	2117
[c0aa336]	2118	cfa_typedef_declaration: // CFA
	2119	TYPEDEF cfa_variable_specifier
[4d51835]	2120	{
[71a422a]	2121	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2122	$$ = $2->addTypedef();
	2123	}
[c0aa336]	2124	\| TYPEDEF cfa_function_specifier
[4d51835]	2125	{
[71a422a]	2126	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2127	$$ = $2->addTypedef();
	2128	}
[647e2ea]	2129	\| cfa_typedef_declaration ',' identifier
[4d51835]	2130	{
[647e2ea]	2131	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2132	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2133	}
	2134	;
[b87a5ed]	2135
[de62360d]	2136	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2137	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2138
	2139	typedef_declaration:
[4d51835]	2140	TYPEDEF type_specifier declarator
	2141	{
[71a422a]	2142	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2143	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2144	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2145	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2146	}
[c25f16b]	2147	\| typedef_declaration ',' declarator
[4d51835]	2148	{
[c25f16b]	2149	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2150	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2151	}
[de62360d]	2152	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2153	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2154	\| type_specifier TYPEDEF declarator
[ac235a8]	2155	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2156	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2157	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2158	;
[b87a5ed]	2159
[721f17a]	2160	typedef_expression:
[25744d2]	2161	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2162	TYPEDEF identifier '=' assignment_expression
[4d51835]	2163	{
[ac235a8]	2164	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2165	}
[c25f16b]	2166	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2167	{
[ac235a8]	2168	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2169	}
	2170	;
[51b73452]	2171
[c0aa336]	2172	c_declaration:
[4cc585b]	2173	declaration_specifier declaring_list
[7fdb94e1]	2174	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2175	\| typedef_declaration
[25744d2]	2176	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2177	\| sue_declaration_specifier
[0bcd707]	2178	{
	2179	assert( $1->type );
[1a73dbb]	2180	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2181	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2182	}
	2183	// enums are never empty declarations because there must have at least one enumeration.
	2184	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2185	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2186	}
	2187	}
[4d51835]	2188	;
[51b73452]	2189
	2190	declaring_list:
[de62360d]	2191	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2192	// storage-class
[1f771fc]	2193	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2194	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2195	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2196	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2197
	2198	\| general_function_declarator asm_name_opt
	2199	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2200	\| general_function_declarator asm_name_opt '=' VOID
	2201	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2202
[4d51835]	2203	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2204	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2205	;
[b87a5ed]	2206
[1f771fc]	2207	general_function_declarator:
	2208	function_type_redeclarator
	2209	\| function_declarator
	2210	;
	2211
[b87a5ed]	2212	declaration_specifier: // type specifier + storage class
[4d51835]	2213	basic_declaration_specifier
[84d58c5]	2214	\| type_declaration_specifier
[79a6b17]	2215	\| sue_declaration_specifier
[0442f93f]	2216	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2217	{
[253d0b4]	2218	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2219	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2220	$$ = nullptr;
	2221	}
	2222	;
	2223
	2224	invalid_types:
	2225	aggregate_key
	2226	\| basic_type_name
	2227	\| indirect_type
[4d51835]	2228	;
[b87a5ed]	2229
[d0ffed1]	2230	declaration_specifier_nobody: // type specifier + storage class - {...}
	2231	// Preclude SUE declarations in restricted scopes:
	2232	//
	2233	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2234	//
	2235	// because it is impossible to call f due to name equivalence.
	2236	basic_declaration_specifier
	2237	\| sue_declaration_specifier_nobody
[84d58c5]	2238	\| type_declaration_specifier
[d0ffed1]	2239	;
	2240
	2241	type_specifier: // type specifier
[4d51835]	2242	basic_type_specifier
	2243	\| sue_type_specifier
[84d58c5]	2244	\| type_type_specifier
[4d51835]	2245	;
[b87a5ed]	2246
[d0ffed1]	2247	type_specifier_nobody: // type specifier - {...}
	2248	// Preclude SUE declarations in restricted scopes:
	2249	//
	2250	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2251	//
	2252	// because it is impossible to call f due to name equivalence.
	2253	basic_type_specifier
	2254	\| sue_type_specifier_nobody
[84d58c5]	2255	\| type_type_specifier
[d0ffed1]	2256	;
	2257
[b87a5ed]	2258	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2259	// empty
[58dd019]	2260	{ $$ = nullptr; }
[4d51835]	2261	\| type_qualifier_list
	2262	;
[51b73452]	2263
	2264	type_qualifier_list:
[de62360d]	2265	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2266	//
[de62360d]	2267	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2268	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2269	// appeared only once.
[4d51835]	2270	type_qualifier
	2271	\| type_qualifier_list type_qualifier
	2272	{ $$ = $1->addQualifiers( $2 ); }
	2273	;
[51b73452]	2274
	2275	type_qualifier:
[4d51835]	2276	type_qualifier_name
[6cef439]	2277	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2278	\| attribute // trick handles most attribute locations
[4d51835]	2279	;
[51b73452]	2280
	2281	type_qualifier_name:
[4d51835]	2282	CONST
[6cef439]	2283	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2284	\| RESTRICT
[6cef439]	2285	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2286	\| VOLATILE
[6cef439]	2287	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2288	\| ATOMIC
[6cef439]	2289	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2290
[446740a]	2291	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2292	//
	2293	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2294	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2295	\| forall
[6cef439]	2296	{ $$ = build_forall( $1 ); }
[a16a7ec]	2297	;
	2298
	2299	forall:
[35718a9]	2300	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2301	{ $$ = $3; }
[4d51835]	2302	;
[51b73452]	2303
	2304	declaration_qualifier_list:
[4d51835]	2305	storage_class_list
[de62360d]	2306	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2307	{ $$ = $1->addQualifiers( $2 ); }
	2308	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2309	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2310	;
[51b73452]	2311
	2312	storage_class_list:
[de62360d]	2313	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2314	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2315	//
[de62360d]	2316	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2317	// specifiers in a declaration.
[4d51835]	2318	storage_class
	2319	\| storage_class_list storage_class
	2320	{ $$ = $1->addQualifiers( $2 ); }
	2321	;
[51b73452]	2322
	2323	storage_class:
[4d51835]	2324	EXTERN
[36e6f10]	2325	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2326	\| STATIC
[36e6f10]	2327	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2328	\| AUTO
[36e6f10]	2329	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2330	\| REGISTER
[36e6f10]	2331	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2332	\| THREADLOCALGCC // GCC
[36e6f10]	2333	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2334	\| THREADLOCALC11 // C11
[36e6f10]	2335	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2336	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2337	\| INLINE // C99
[36e6f10]	2338	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2339	\| FORTRAN // C99
[36e6f10]	2340	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2341	\| NORETURN // C11
[36e6f10]	2342	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2343	;
[51b73452]	2344
	2345	basic_type_name:
[6cef439]	2346	basic_type_name_type
	2347	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2348	;
	2349
	2350	// Just an intermediate value for conversion.
	2351	basic_type_name_type:
[201aeb9]	2352	VOID
[e048ece]	2353	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2354	\| BOOL // C99
[e048ece]	2355	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2356	\| CHAR
[e048ece]	2357	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2358	\| INT
[e048ece]	2359	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2360	\| INT128
[e048ece]	2361	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2362	\| UINT128
[e048ece]	2363	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2364	\| FLOAT
[e048ece]	2365	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2366	\| DOUBLE
[e048ece]	2367	{ $$ = build_basic_type( TypeData::Double ); }
[c5f69fd]	2368	\| FLOAT80
	2369	{ $$ = build_basic_type( TypeData::Float80 ); }
[e15853c]	2370	\| uuFLOAT128
[e048ece]	2371	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[c5f69fd]	2372	\| FLOAT16
	2373	{ $$ = build_basic_type( TypeData::Float16 ); }
	2374	\| FLOAT32
	2375	{ $$ = build_basic_type( TypeData::Float32 ); }
	2376	\| FLOAT32X
	2377	{ $$ = build_basic_type( TypeData::Float32x ); }
	2378	\| FLOAT64
	2379	{ $$ = build_basic_type( TypeData::Float64 ); }
	2380	\| FLOAT64X
	2381	{ $$ = build_basic_type( TypeData::Float64x ); }
	2382	\| FLOAT128
	2383	{ $$ = build_basic_type( TypeData::Float128 ); }
[569b118]	2384	// https://developer.arm.com/documentation/den0018/a/NEON-Intrinsics/Accessing-vector-types-from-C
[c5f69fd]	2385	\| FLOAT128X
	2386	{ $$ = build_basic_type( TypeData::Float128x ); }
	2387	\| FLOAT32X4
	2388	{ $$ = build_basic_type( TypeData::Float32x4 ); }
	2389	\| FLOAT64X2
	2390	{ $$ = build_basic_type( TypeData::Float64x2 ); }
	2391	\| SVFLOAT32
	2392	{ $$ = build_basic_type( TypeData::Svfloat32 ); }
	2393	\| SVFLOAT64
	2394	{ $$ = build_basic_type( TypeData::Svfloat64 ); }
	2395	\| SVBOOL
	2396	{ $$ = build_basic_type( TypeData::Svbool ); }
[15f769c]	2397	\| DECIMAL32
	2398	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2399	\| DECIMAL64
	2400	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2401	\| DECIMAL128
	2402	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2403	\| COMPLEX // C99
[e048ece]	2404	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2405	\| IMAGINARY // C99
[e048ece]	2406	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2407	\| SIGNED
[e048ece]	2408	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2409	\| UNSIGNED
[e048ece]	2410	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2411	\| SHORT
[e048ece]	2412	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2413	\| LONG
[e048ece]	2414	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2415	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2416	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2417	\| AUTO_TYPE
[e048ece]	2418	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2419	\| vtable
	2420	;
	2421
	2422	vtable_opt:
	2423	// empty
	2424	{ $$ = nullptr; }
[9380add]	2425	\| vtable
[1f652a7]	2426	;
	2427
	2428	vtable:
[8f6f3729]	2429	VTABLE '(' type_name ')' default_opt
[6cef439]	2430	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2431	;
	2432
	2433	default_opt:
	2434	// empty
	2435	{ $$ = nullptr; }
	2436	\| DEFAULT
	2437	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2438	;
[51b73452]	2439
	2440	basic_declaration_specifier:
[4d51835]	2441	// A semantic check is necessary for conflicting storage classes.
	2442	basic_type_specifier
	2443	\| declaration_qualifier_list basic_type_specifier
	2444	{ $$ = $2->addQualifiers( $1 ); }
	2445	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2446	{ $$ = $1->addQualifiers( $2 ); }
	2447	\| basic_declaration_specifier storage_class type_qualifier_list
	2448	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2449	\| basic_declaration_specifier storage_class basic_type_specifier
	2450	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2451	;
[51b73452]	2452
	2453	basic_type_specifier:
[84d58c5]	2454	direct_type
[f38e7d7]	2455	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2456	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2457	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2458	;
[51b73452]	2459
[84d58c5]	2460	direct_type:
[4d51835]	2461	basic_type_name
	2462	\| type_qualifier_list basic_type_name
	2463	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2464	\| direct_type type_qualifier
[4d51835]	2465	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2466	\| direct_type basic_type_name
[4d51835]	2467	{ $$ = $1->addType( $2 ); }
	2468	;
[51b73452]	2469
[84d58c5]	2470	indirect_type:
[b6ad601]	2471	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2472	{ $$ = $3; }
[b6ad601]	2473	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2474	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2475	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2476	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2477	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2478	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2479	\| ZERO_T // CFA
[e048ece]	2480	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2481	\| ONE_T // CFA
[e048ece]	2482	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2483	;
[51b73452]	2484
[d0ffed1]	2485	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2486	sue_type_specifier
	2487	\| declaration_qualifier_list sue_type_specifier
	2488	{ $$ = $2->addQualifiers( $1 ); }
	2489	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2490	{ $$ = $1->addQualifiers( $2 ); }
	2491	\| sue_declaration_specifier storage_class type_qualifier_list
	2492	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2493	;
[51b73452]	2494
[d0ffed1]	2495	sue_type_specifier: // struct, union, enum + type specifier
	2496	elaborated_type
[fdca7c6]	2497	\| type_qualifier_list
	2498	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2499	elaborated_type
	2500	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2501	\| sue_type_specifier type_qualifier
[284da8c]	2502	{
	2503	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2504	$$ = $1->addQualifiers( $2 );
	2505	}
[4d51835]	2506	;
[51b73452]	2507
[d0ffed1]	2508	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2509	sue_type_specifier_nobody
	2510	\| declaration_qualifier_list sue_type_specifier_nobody
	2511	{ $$ = $2->addQualifiers( $1 ); }
	2512	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2513	{ $$ = $1->addQualifiers( $2 ); }
	2514	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2515	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2516	;
	2517
	2518	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2519	elaborated_type_nobody
	2520	\| type_qualifier_list elaborated_type_nobody
	2521	{ $$ = $2->addQualifiers( $1 ); }
	2522	\| sue_type_specifier_nobody type_qualifier
	2523	{ $$ = $1->addQualifiers( $2 ); }
	2524	;
	2525
[84d58c5]	2526	type_declaration_specifier:
	2527	type_type_specifier
	2528	\| declaration_qualifier_list type_type_specifier
[4d51835]	2529	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2530	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2531	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2532	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2533	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2534	;
[b87a5ed]	2535
[84d58c5]	2536	type_type_specifier: // typedef types
	2537	type_name
[6cef439]	2538	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2539	\| type_qualifier_list type_name
[6cef439]	2540	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2541	\| type_type_specifier type_qualifier
	2542	{ $$ = $1->addQualifiers( $2 ); }
	2543	;
	2544
	2545	type_name:
[4d51835]	2546	TYPEDEFname
[6cef439]	2547	{ $$ = build_typedef( $1 ); }
[84d58c5]	2548	\| '.' TYPEDEFname
[6cef439]	2549	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2550	\| type_name '.' TYPEDEFname
[6cef439]	2551	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2552	\| typegen_name
	2553	\| '.' typegen_name
[6cef439]	2554	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2555	\| type_name '.' typegen_name
[6cef439]	2556	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2557	;
	2558
	2559	typegen_name: // CFA
[65d6de4]	2560	TYPEGENname
[6cef439]	2561	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2562	\| TYPEGENname '(' ')'
[6cef439]	2563	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2564	\| TYPEGENname '(' type_list ')'
[6cef439]	2565	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2566	;
[51b73452]	2567
[d0ffed1]	2568	elaborated_type: // struct, union, enum
[c0aa336]	2569	aggregate_type
	2570	\| enum_type
[4d51835]	2571	;
[51b73452]	2572
[d0ffed1]	2573	elaborated_type_nobody: // struct, union, enum - {...}
	2574	aggregate_type_nobody
	2575	\| enum_type_nobody
	2576	;
	2577
[7e13b11]	2578	// ************************ AGGREGATE *****************************
	2579
[d0ffed1]	2580	aggregate_type: // struct, union
[fc20514]	2581	aggregate_key attribute_list_opt
	2582	{ forall = false; } // reset
	2583	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2584	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2585	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2586	{
[71a422a]	2587	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2588	forall = false; // reset
	2589	}
[284da8c]	2590	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2591	{
	2592	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2593	}
[f9c3100]	2594	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2595	{
[71a422a]	2596	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2597	forall = false; // reset
	2598	}
[284da8c]	2599	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2600	{
[6cef439]	2601	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2602	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2603	}
	2604	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2605	{
[71a422a]	2606	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2607	forall = false; // reset
	2608	}
	2609	'{' field_declaration_list_opt '}' type_parameters_opt
	2610	{
[6cef439]	2611	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2612	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2613	}
[d0ffed1]	2614	\| aggregate_type_nobody
	2615	;
	2616
[284da8c]	2617	type_parameters_opt:
	2618	// empty
	2619	{ $$ = nullptr; } %prec '}'
	2620	\| '(' type_list ')'
	2621	{ $$ = $2; }
	2622	;
	2623
[d0ffed1]	2624	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2625	aggregate_key attribute_list_opt identifier
[84d58c5]	2626	{
[71a422a]	2627	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2628	forall = false; // reset
[84d58c5]	2629	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2630	}
[73f04fd]	2631	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2632	{
[fc20514]	2633	forall = false; // reset
[65d6de4]	2634	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2635	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2636	// delete newFromTypeGen.
[6cef439]	2637	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2638	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2639	} else {
[6cef439]	2640	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2641	$3->symbolic.name = nullptr; // copied to $$
	2642	$3->symbolic.actuals = nullptr;
[9fa61f5]	2643	delete $3;
	2644	}
[65d6de4]	2645	}
[4d51835]	2646	;
[51b73452]	2647
	2648	aggregate_key:
[e307e12]	2649	aggregate_data
	2650	\| aggregate_control
	2651	;
	2652
	2653	aggregate_data:
[1f652a7]	2654	STRUCT vtable_opt
[bb7422a]	2655	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2656	\| UNION
[bb7422a]	2657	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2658	\| EXCEPTION // CFA
[bb7422a]	2659	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2660	;
	2661
	2662	aggregate_control: // CFA
[cbbd8fd7]	2663	MONITOR
[bb7422a]	2664	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2665	\| MUTEX STRUCT
[bb7422a]	2666	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2667	\| GENERATOR
[bb7422a]	2668	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2669	\| MUTEX GENERATOR
[bb7422a]	2670	{
	2671	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2672	$$ = ast::AggregateDecl::NoAggregate;
	2673	}
[d3bc0ad]	2674	\| COROUTINE
[bb7422a]	2675	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2676	\| MUTEX COROUTINE
[bb7422a]	2677	{
	2678	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2679	$$ = ast::AggregateDecl::NoAggregate;
	2680	}
[d3bc0ad]	2681	\| THREAD
[bb7422a]	2682	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2683	\| MUTEX THREAD
[bb7422a]	2684	{
	2685	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2686	$$ = ast::AggregateDecl::NoAggregate;
	2687	}
[4d51835]	2688	;
[51b73452]	2689
[7fdb94e1]	2690	field_declaration_list_opt:
[5d125e4]	2691	// empty
[58dd019]	2692	{ $$ = nullptr; }
[7fdb94e1]	2693	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2694	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2695	;
[51b73452]	2696
	2697	field_declaration:
[679e644]	2698	type_specifier field_declaring_list_opt ';'
[d8454b9]	2699	{
	2700	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2701	$$ = fieldDecl( $1, $2 );
	2702	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2703	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2704	// printf( "\tattr %s\n", attr->name.c_str() );
	2705	// } // for
	2706	}
[0442f93f]	2707	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2708	{
[253d0b4]	2709	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2710	$$ = nullptr;
	2711	}
[679e644]	2712	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2713	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2714	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2715	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2716	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2717	{
[dea36ee]	2718	if ( ! $3 ) { // field declarator ?
	2719	$3 = DeclarationNode::newName( nullptr );
	2720	} // if
[679a260]	2721	$3->inLine = true;
[679e644]	2722	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2723	distInl( $3 );
[8f91c9ae]	2724	}
[e307e12]	2725	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2726	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2727	\| typedef_declaration ';' // CFA
	2728	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2729	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2730	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2731	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2732	{ $$ = $2; } // mark all fields in list
[46fa473]	2733	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2734	\| static_assert ';' // C11
[4d51835]	2735	;
[b87a5ed]	2736
[679e644]	2737	field_declaring_list_opt:
	2738	// empty
	2739	{ $$ = nullptr; }
[12f1156]	2740	\| field_declarator
	2741	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2742	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2743	;
[51b73452]	2744
[679e644]	2745	field_declarator:
[e07caa2]	2746	bit_subrange_size // C special case, no field name
[4d51835]	2747	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2748	\| variable_declarator bit_subrange_size_opt
[679e644]	2749	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2750	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2751	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2752	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2753	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2754	\| function_type_redeclarator bit_subrange_size_opt
	2755	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2756	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2757	;
	2758
[e07caa2]	2759	field_abstract_list_opt:
	2760	// empty
[dea36ee]	2761	{ $$ = nullptr; }
[e07caa2]	2762	\| field_abstract
	2763	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2764	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2765	;
	2766
[e07caa2]	2767	field_abstract:
[f7e4db27]	2768	// no bit fields
[e07caa2]	2769	variable_abstract_declarator
[679e644]	2770	;
	2771
	2772	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2773	// bit-fields are handled by C declarations
[033ff37]	2774	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2775	{ $$ = $1->addName( $2 ); }
[033ff37]	2776	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2777	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2778	;
	2779
	2780	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2781	// bit-fields are handled by C declarations
[679e644]	2782	cfa_abstract_declarator_tuple
	2783	\| cfa_field_abstract_list ','
[dc3fbe5]	2784	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2785	;
[51b73452]	2786
	2787	bit_subrange_size_opt:
[4d51835]	2788	// empty
[58dd019]	2789	{ $$ = nullptr; }
[4d51835]	2790	\| bit_subrange_size
	2791	;
[51b73452]	2792
	2793	bit_subrange_size:
[c786e1d]	2794	':' assignment_expression
[4d51835]	2795	{ $$ = $2; }
	2796	;
[51b73452]	2797
[7e13b11]	2798	// ************************ ENUMERATION *****************************
[647e2ea]	2799
[9e7236f4]	2800	enum_type:
[30aab55]	2801	// anonymous, no type name
	2802	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2803	{
	2804	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2805	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2806	} // if
	2807	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2808	}
[42422fb]	2809	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2810	{
[42422fb]	2811	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2812	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2813	}
[42422fb]	2814	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2815	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2816	} // if
	2817	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2818	}
[30aab55]	2819
[42422fb]	2820	// named type
[30aab55]	2821	\| ENUM attribute_list_opt identifier
	2822	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2823	hide_opt '{' enumerator_list comma_opt '}'
	2824	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2825	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2826	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2827	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2828	{
[42422fb]	2829	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2830	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2831	}
[42422fb]	2832	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2833	}
[c7f12a4]	2834	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2835	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2836	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2837	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2838
	2839	// forward declaration
[d0ffed1]	2840	\| enum_type_nobody
	2841	;
	2842
[42422fb]	2843	enumerator_type:
	2844	'(' ')' // pure enumeration
	2845	{ $$ = nullptr; }
	2846	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2847	{ $$ = $2; }
	2848	;
	2849
[c7f12a4]	2850	hide_opt:
	2851	// empty
[7cf8006]	2852	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2853	\| '!'
[7cf8006]	2854	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2855	;
	2856
[d0ffed1]	2857	enum_type_nobody: // enum - {...}
[f9c3100]	2858	ENUM attribute_list_opt identifier
[71a422a]	2859	{
	2860	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2861	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2862	}
[0bd46fd]	2863	\| ENUM attribute_list_opt type_name
[71a422a]	2864	{
[6cef439]	2865	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2866	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2867	}
[4d51835]	2868	;
[51b73452]	2869
	2870	enumerator_list:
[2ca7fc2]	2871	// empty
	2872	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2873	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2874	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2875	\| INLINE type_name
[d9bad51]	2876	{
	2877	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2878	$2->symbolic.name = nullptr;
	2879	delete $2;
	2880	}
[7cf8006]	2881	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2882	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2883	\| enumerator_list ',' INLINE type_name
	2884	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2885	;
[51b73452]	2886
[7cf8006]	2887	visible_hide_opt:
[c7f12a4]	2888	hide_opt
	2889	\| '^'
[7cf8006]	2890	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2891	;
	2892
[51b73452]	2893	enumerator_value_opt:
[4d51835]	2894	// empty
[58dd019]	2895	{ $$ = nullptr; }
[7991c7d]	2896	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2897	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2898	// \| simple_assignment_operator initializer
	2899	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2900	;
[51b73452]	2901
[7e13b11]	2902	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2903
	2904	parameter_list_ellipsis_opt:
	2905	// empty
[db19e1d]	2906	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[647e2ea]	2907	\| ELLIPSIS
	2908	{ $$ = nullptr; }
	2909	\| parameter_list
	2910	\| parameter_list ',' ELLIPSIS
	2911	{ $$ = $1->addVarArgs(); }
	2912	;
	2913
	2914	parameter_list: // abstract + real
	2915	parameter_declaration
	2916	\| abstract_parameter_declaration
	2917	\| parameter_list ',' parameter_declaration
	2918	{ $$ = $1->set_last( $3 ); }
	2919	\| parameter_list ',' abstract_parameter_declaration
	2920	{ $$ = $1->set_last( $3 ); }
	2921	;
	2922
	2923	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2924	// empty
[e048ece]	2925	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2926	\| ELLIPSIS
[58dd019]	2927	{ $$ = nullptr; }
[c0aa336]	2928	\| cfa_parameter_list
[647e2ea]	2929	\| cfa_abstract_parameter_list
	2930	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2931	{ $$ = $1->set_last( $3 ); }
	2932	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2933	{ $$ = $1->addVarArgs(); }
[647e2ea]	2934	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2935	{ $$ = $1->addVarArgs(); }
	2936	;
[b87a5ed]	2937
[c0aa336]	2938	cfa_parameter_list: // CFA
	2939	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2940	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2941	cfa_parameter_declaration
[647e2ea]	2942	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2943	{ $$ = $1->set_last( $3 ); }
	2944	\| cfa_parameter_list ',' cfa_parameter_declaration
	2945	{ $$ = $1->set_last( $3 ); }
	2946	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2947	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2948	;
[b87a5ed]	2949
[c0aa336]	2950	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2951	cfa_abstract_parameter_declaration
[647e2ea]	2952	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2953	{ $$ = $1->set_last( $3 ); }
[4d51835]	2954	;
[51b73452]	2955
[de62360d]	2956	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2957	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2958
[647e2ea]	2959	parameter_declaration:
	2960	// No SUE declaration in parameter list.
	2961	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2962	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2963	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2964	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2965	;
	2966
	2967	abstract_parameter_declaration:
	2968	declaration_specifier_nobody default_initializer_opt
	2969	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2970	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2971	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2972	;
	2973
[c0aa336]	2974	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2975	parameter_declaration
[5a51798]	2976	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2977	{ $$ = $1->addName( $2 ); }
[5a51798]	2978	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2979	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2980	{ $$ = $1->addName( $2 ); }
[5a51798]	2981	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2982	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2983	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2984	;
[b87a5ed]	2985
[c0aa336]	2986	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2987	abstract_parameter_declaration
[c0aa336]	2988	\| cfa_identifier_parameter_declarator_no_tuple
	2989	\| cfa_abstract_tuple
	2990	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2991	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2992	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2993	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2994	;
[51b73452]	2995
[c11e31c]	2996	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2997	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2998	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2999
[b87a5ed]	3000	identifier_list: // K&R-style parameter list => no types
[033ff37]	3001	identifier
[4d51835]	3002	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	3003	\| identifier_list ',' identifier
[dc3fbe5]	3004	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	3005	;
[51b73452]	3006
[84d58c5]	3007	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	3008	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	3009	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	3010	\| type_specifier abstract_declarator
[4d51835]	3011	{ $$ = $2->addType( $1 ); }
	3012	;
[b87a5ed]	3013
[84d58c5]	3014	type: // typeof, assertion
	3015	type_no_function
[c0aa336]	3016	\| cfa_abstract_function // CFA
[4d51835]	3017	;
[51b73452]	3018
	3019	initializer_opt:
[4d51835]	3020	// empty
[58dd019]	3021	{ $$ = nullptr; }
[f9c3100]	3022	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3023	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3024	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3025	;
[51b73452]	3026
	3027	initializer:
[de62360d]	3028	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3029	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3030	;
[51b73452]	3031
[7fdb94e1]	3032	initializer_list_opt:
[097e2b0]	3033	// empty
[58dd019]	3034	{ $$ = nullptr; }
[097e2b0]	3035	\| initializer
[4d51835]	3036	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3037	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3038	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3039	;
[b87a5ed]	3040
[de62360d]	3041	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3042	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3043	//
[b87a5ed]	3044	// int x[10] = { [1] = 3 };
[c11e31c]	3045	//
[de62360d]	3046	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3047	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3048	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3049	// shift/reduce conflicts
[51b73452]	3050
	3051	designation:
[4d51835]	3052	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3053	\| identifier_at ':' // GCC, field name
[bb7422a]	3054	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3055	;
[51b73452]	3056
[b87a5ed]	3057	designator_list: // C99
[4d51835]	3058	designator
[2871210]	3059	\| designator_list designator
[b93c544]	3060	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3061	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3062	;
[51b73452]	3063
	3064	designator:
[e16eb460]	3065	'.' identifier_at // C99, field name
[bb7422a]	3066	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3067	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3068	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3069	{ $$ = $3; }
[c0a33d2]	3070	\| '[' push subrange pop ']' // CFA, multiple array elements
	3071	{ $$ = $3; }
	3072	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3073	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3074	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3075	{ $$ = $4; }
[4d51835]	3076	;
[51b73452]	3077
[de62360d]	3078	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3079	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3080	//
	3081	// Overloading: function, data, and operator identifiers may be overloaded.
	3082	//
[3ca7ef3]	3083	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3084	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3085	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3086	//
[de62360d]	3087	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3088	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3089	//
	3090	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3091	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3092	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3093	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3094	// on type arguments of polymorphic functions.
[c11e31c]	3095
[b87a5ed]	3096	type_parameter_list: // CFA
[67cf18c]	3097	type_parameter
	3098	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3099	{ $$ = $1->set_last( $3 ); }
[4d51835]	3100	;
[b87a5ed]	3101
[84d58c5]	3102	type_initializer_opt: // CFA
	3103	// empty
	3104	{ $$ = nullptr; }
	3105	\| '=' type
	3106	{ $$ = $2; }
	3107	;
	3108
[b87a5ed]	3109	type_parameter: // CFA
[033ff37]	3110	type_class identifier_or_type_name
[408ab79]	3111	{
[71a422a]	3112	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3113	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3114	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3115	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3116	}
[5a51798]	3117	type_initializer_opt assertion_list_opt
[67cf18c]	3118	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3119	\| identifier_or_type_name new_type_class
[71a422a]	3120	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3121	type_initializer_opt assertion_list_opt
	3122	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3123	\| '[' identifier_or_type_name ']'
[b66d14a]	3124	{
[71a422a]	3125	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3126	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3127	}
[5a51798]	3128	// \| type_specifier identifier_parameter_declarator
[9997fee]	3129	\| assertion_list
[bb7422a]	3130	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3131	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3132	{
	3133	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3134	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3135	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3136	}
[4d51835]	3137	;
[b87a5ed]	3138
[5a51798]	3139	new_type_class: // CFA
	3140	// empty
[bb7422a]	3141	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3142	\| '&'
[bb7422a]	3143	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3144	\| '*'
[7e13b11]	3145	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3146	// \| '(' '*' ')' // Gregor made me do it
	3147	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3148	\| ELLIPSIS
[bb7422a]	3149	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3150	;
	3151
[b87a5ed]	3152	type_class: // CFA
[4040425]	3153	OTYPE
[bb7422a]	3154	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3155	\| DTYPE
[bb7422a]	3156	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3157	\| FTYPE
[bb7422a]	3158	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3159	\| TTYPE
[bb7422a]	3160	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3161	;
[b87a5ed]	3162
	3163	assertion_list_opt: // CFA
[4d51835]	3164	// empty
[58dd019]	3165	{ $$ = nullptr; }
[9997fee]	3166	\| assertion_list
	3167	;
	3168
	3169	assertion_list: // CFA
	3170	assertion
	3171	\| assertion_list assertion
[dc3fbe5]	3172	{ $$ = $1->set_last( $2 ); }
[4d51835]	3173	;
[b87a5ed]	3174
	3175	assertion: // CFA
[033ff37]	3176	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3177	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3178	\| '\|' '{' trait_declaration_list '}'
	3179	{ $$ = $3; }
[35718a9]	3180	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3181	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3182	;
[b87a5ed]	3183
[84d58c5]	3184	type_list: // CFA
	3185	type
[bb7422a]	3186	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3187	\| assignment_expression
[84d58c5]	3188	\| type_list ',' type
[b93c544]	3189	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3190	\| type_list ',' assignment_expression
[b93c544]	3191	{ $$ = $1->set_last( $3 ); }
[4d51835]	3192	;
[b87a5ed]	3193
	3194	type_declaring_list: // CFA
[4040425]	3195	OTYPE type_declarator
[4d51835]	3196	{ $$ = $2; }
[4040425]	3197	\| storage_class_list OTYPE type_declarator
[4d51835]	3198	{ $$ = $3->addQualifiers( $1 ); }
	3199	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3200	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3201	;
[b87a5ed]	3202
	3203	type_declarator: // CFA
[4d51835]	3204	type_declarator_name assertion_list_opt
	3205	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3206	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3207	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3208	;
[b87a5ed]	3209
	3210	type_declarator_name: // CFA
[033ff37]	3211	identifier_or_type_name
[4d51835]	3212	{
[71a422a]	3213	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3214	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3215	}
[033ff37]	3216	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3217	{
[71a422a]	3218	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3219	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3220	}
	3221	;
[b87a5ed]	3222
[4040425]	3223	trait_specifier: // CFA
[033ff37]	3224	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3225	{
[3d937e2]	3226	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3227	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3228	}
	3229	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3230	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3231	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3232	{
[3d937e2]	3233	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3234	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3235	}
[206ecae]	3236	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3237	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3238	;
[b87a5ed]	3239
[84d58c5]	3240	trait_declaration_list: // CFA
[4040425]	3241	trait_declaration
[206ecae]	3242	\| trait_declaration_list trait_declaration
	3243	{ $$ = $1->set_last( $2 ); }
[4d51835]	3244	;
[b87a5ed]	3245
[84d58c5]	3246	trait_declaration: // CFA
[13e8427]	3247	cfa_trait_declaring_list ';'
	3248	\| trait_declaring_list ';'
[4d51835]	3249	;
[b87a5ed]	3250
[c0aa336]	3251	cfa_trait_declaring_list: // CFA
	3252	cfa_variable_specifier
	3253	\| cfa_function_specifier
[206ecae]	3254	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3255	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3256	;
[b87a5ed]	3257
[4040425]	3258	trait_declaring_list: // CFA
[4941716]	3259	// Cannot declare an aggregate or enumeration in a trait.
	3260	type_specifier_nobody declarator
[7fdb94e1]	3261	{ $$ = $2->addType( $1 ); }
[206ecae]	3262	\| trait_declaring_list ',' declarator
	3263	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4941716]	3264	\| error
	3265	{ SemanticError( yylloc, "Possible cause is declaring an aggregate or enumeration type in a trait." ); $$ = nullptr; }
[4d51835]	3266	;
[51b73452]	3267
[e1d66c84]	3268	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3269
	3270	translation_unit:
[3d56d15b]	3271	// empty, input file
[4d51835]	3272	\| external_definition_list
[12f1156]	3273	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3274	;
[51b73452]	3275
	3276	external_definition_list:
[35718a9]	3277	push external_definition pop
	3278	{ $$ = $2; }
[fc20514]	3279	\| external_definition_list push external_definition pop
[dc3fbe5]	3280	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3281	;
[51b73452]	3282
	3283	external_definition_list_opt:
[4d51835]	3284	// empty
[58dd019]	3285	{ $$ = nullptr; }
[3d56d15b]	3286	\| external_definition_list
	3287	;
	3288
	3289	up:
[fc20514]	3290	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3291	;
	3292
	3293	down:
	3294	{ typedefTable.down(); }
[4d51835]	3295	;
[51b73452]	3296
	3297	external_definition:
[2d019af]	3298	DIRECTIVE
[bb7422a]	3299	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3300	\| declaration
[1a73dbb]	3301	{
	3302	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3303	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3304	// disallowed at the moment.
[4eb3a7c5]	3305	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3306	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3307	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3308	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3309	}
	3310	}
	3311	}
[996c8ed]	3312	\| IDENTIFIER IDENTIFIER
	3313	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3314	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3315	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3316	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3317	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3318	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3319	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3320	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3321	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3322	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3323	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3324	\| external_function_definition
[ecae5860]	3325	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3326	{
	3327	distExt( $2 ); // mark all fields in list
	3328	$$ = $2;
	3329	}
[e994912]	3330	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3331	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3332	\| EXTERN STRINGliteral
	3333	{
	3334	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3335	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3336	}
[ae2f2ae]	3337	up external_definition down
[aac37fa]	3338	{
	3339	linkage = linkageStack.top();
	3340	linkageStack.pop();
	3341	$$ = $5;
	3342	}
[c0aa336]	3343	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3344	{
[3b8e52c]	3345	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3346	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3347	}
[3d56d15b]	3348	'{' up external_definition_list_opt down '}'
[4d51835]	3349	{
	3350	linkage = linkageStack.top();
	3351	linkageStack.pop();
[3d56d15b]	3352	$$ = $6;
[8e9cbb2]	3353	}
[7e13b11]	3354	// global distribution
[9997fee]	3355	\| type_qualifier_list
	3356	{
[55266c7]	3357	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3358	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3359	}
[fc20514]	3360	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3361	}
	3362	'{' up external_definition_list_opt down '}' // CFA, namespace
	3363	{
[4c3ee8d]	3364	distQual( $5, $1 );
[9fd9d015]	3365	forall = false;
[3d56d15b]	3366	$$ = $5;
[9997fee]	3367	}
	3368	\| declaration_qualifier_list
	3369	{
[55266c7]	3370	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3371	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3372	}
[fc20514]	3373	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3374	}
	3375	'{' up external_definition_list_opt down '}' // CFA, namespace
	3376	{
[4c3ee8d]	3377	distQual( $5, $1 );
[9fd9d015]	3378	forall = false;
[3d56d15b]	3379	$$ = $5;
[9997fee]	3380	}
	3381	\| declaration_qualifier_list type_qualifier_list
	3382	{
[55266c7]	3383	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3384	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3385	}
[b2ddaf3]	3386	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3387	}
[3d56d15b]	3388	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3389	{
[284da8c]	3390	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3391	forall = false;
[3d56d15b]	3392	$$ = $6;
[9997fee]	3393	}
[b9f6791f]	3394	\| ';' // empty declaration
	3395	{ $$ = nullptr; }
[4d51835]	3396	;
	3397
	3398	external_function_definition:
	3399	function_definition
[de62360d]	3400	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3401	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3402	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3403	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3404	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3405	\| function_declarator compound_statement
[c0a33d2]	3406	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3407	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3408	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3409	;
[51b73452]	3410
[8b47e50]	3411	with_clause_opt:
	3412	// empty
[9997fee]	3413	{ $$ = nullptr; forall = false; }
[e78966e]	3414	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3415	{
	3416	$$ = $3; forall = false;
	3417	if ( $5 ) {
[253d0b4]	3418	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3419	$$ = nullptr;
	3420	} // if
	3421	}
[8b47e50]	3422	;
	3423
[51b73452]	3424	function_definition:
[8b47e50]	3425	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3426	{
[481115f]	3427	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3428	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3429	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3430	$$ = $1;
[4d51835]	3431	}
[8b47e50]	3432	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3433	{
[c38ae92]	3434	rebindForall( $1, $2 );
[7fdb94e1]	3435	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3436	}
[1f771fc]	3437	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3438	{
	3439	rebindForall( $1, $2 );
[5fcba14]	3440	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3441	}
[a16a7ec]	3442	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3443	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3444	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3445	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3446	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3447	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3448	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3449	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3450	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3451
	3452	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3453	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3454	{
[c38ae92]	3455	rebindForall( $1, $2 );
[5fcba14]	3456	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3457	}
[a16a7ec]	3458	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3459	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3460	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3461	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3462	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3463	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3464	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3465	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3466	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3467	;
[51b73452]	3468
	3469	declarator:
[4d51835]	3470	variable_declarator
[c6b1105]	3471	\| variable_type_redeclarator
[4d51835]	3472	\| function_declarator
[1f771fc]	3473	\| function_type_redeclarator
[4d51835]	3474	;
[51b73452]	3475
	3476	subrange:
[4d51835]	3477	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3478	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3479	;
[b87a5ed]	3480
[7e13b11]	3481	// ************************** ASM ***************************
	3482
[b87a5ed]	3483	asm_name_opt: // GCC
[4d51835]	3484	// empty
[58dd019]	3485	{ $$ = nullptr; }
	3486	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3487	{
	3488	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3489	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3490	$$ = name->addQualifiers( $5 );
	3491	}
[4d51835]	3492	;
[b87a5ed]	3493
[7e13b11]	3494	// ************************** ATTRIBUTE ***************************
	3495
[b87a5ed]	3496	attribute_list_opt: // GCC
[4d51835]	3497	// empty
[58dd019]	3498	{ $$ = nullptr; }
[4d51835]	3499	\| attribute_list
	3500	;
[b87a5ed]	3501
	3502	attribute_list: // GCC
[4d51835]	3503	attribute
	3504	\| attribute_list attribute
[1db21619]	3505	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3506	;
[b87a5ed]	3507
	3508	attribute: // GCC
[44a81853]	3509	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3510	{ $$ = $4; }
[647e2ea]	3511	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3512	{ $$ = $3; }
	3513	\| ATTR '(' attribute_name_list ')' // CFA
	3514	{ $$ = $3; }
[4d51835]	3515	;
[b87a5ed]	3516
[44a81853]	3517	attribute_name_list: // GCC
	3518	attribute_name
	3519	\| attribute_name_list ',' attribute_name
[c0aa336]	3520	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3521	;
[b87a5ed]	3522
[44a81853]	3523	attribute_name: // GCC
[4d51835]	3524	// empty
[44a81853]	3525	{ $$ = nullptr; }
	3526	\| attr_name
	3527	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3528	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3529	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3530	;
[b87a5ed]	3531
[44a81853]	3532	attr_name: // GCC
[12f1156]	3533	identifier_or_type_name
[114014c]	3534	\| FALLTHROUGH
	3535	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3536	\| CONST
[9ff56e7]	3537	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3538	;
[51b73452]	3539
[c11e31c]	3540	// ============================================================================
[de62360d]	3541	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3542	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3543	// in:
[c11e31c]	3544	//
[b87a5ed]	3545	// int (*f())[10] { ... };
	3546	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3547	//
[de62360d]	3548	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3549	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3550	// ============================================================================
	3551
	3552	// ----------------------------------------------------------------------------
[de62360d]	3553	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3554	// to define a variable or function prototype, e.g.:
[c11e31c]	3555	//
[b87a5ed]	3556	// valid declaration invalid definition
	3557	// ----------------- ------------------
[4d51835]	3558	// int f; int f {}
	3559	// int f; int f {}
[b87a5ed]	3560	// int f[10]; int f[10] {}
[4d51835]	3561	// int (f)(int); int (f)(int) {}
[c11e31c]	3562	//
[de62360d]	3563	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3564	// variable_declarator and function_declarator.
[c11e31c]	3565	// ----------------------------------------------------------------------------
	3566
[de62360d]	3567	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3568	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3569
[5e25953]	3570	paren_identifier:
[e16eb460]	3571	identifier_at
[5e25953]	3572	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3573	\| '?' identifier
[daa4cc1]	3574	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3575	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3576	\| '(' paren_identifier ')' // redundant parenthesis
	3577	{ $$ = $2; }
	3578	;
	3579
[51b73452]	3580	variable_declarator:
[4d51835]	3581	paren_identifier attribute_list_opt
[1db21619]	3582	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3583	\| variable_ptr
	3584	\| variable_array attribute_list_opt
[1db21619]	3585	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3586	\| variable_function attribute_list_opt
[1db21619]	3587	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3588	;
[51b73452]	3589
	3590	variable_ptr:
[dd51906]	3591	ptrref_operator variable_declarator
[a5f9444]	3592	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3593	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3594	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3595	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3596	{ $$ = $2->addQualifiers( $4 ); }
	3597	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3598	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3599	;
[51b73452]	3600
	3601	variable_array:
[4d51835]	3602	paren_identifier array_dimension
	3603	{ $$ = $1->addArray( $2 ); }
	3604	\| '(' variable_ptr ')' array_dimension
	3605	{ $$ = $2->addArray( $4 ); }
[5e25953]	3606	\| '(' attribute_list variable_ptr ')' array_dimension
	3607	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3608	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3609	{ $$ = $2->addArray( $4 ); }
[5e25953]	3610	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3611	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3612	\| '(' variable_array ')' // redundant parenthesis
	3613	{ $$ = $2; }
[5e25953]	3614	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3615	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3616	;
[51b73452]	3617
	3618	variable_function:
[647e2ea]	3619	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3620	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3621	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3622	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3623	\| '(' variable_function ')' // redundant parenthesis
	3624	{ $$ = $2; }
[5e25953]	3625	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3626	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3627	;
[51b73452]	3628
[c6b1105]	3629	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3630	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3631	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3632
	3633	function_declarator:
[4d51835]	3634	function_no_ptr attribute_list_opt
[1db21619]	3635	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3636	\| function_ptr
	3637	\| function_array attribute_list_opt
[1db21619]	3638	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3639	;
[51b73452]	3640
	3641	function_no_ptr:
[647e2ea]	3642	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3643	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3644	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3645	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3646	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3647	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3648	\| '(' function_no_ptr ')' // redundant parenthesis
	3649	{ $$ = $2; }
[5e25953]	3650	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3651	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3652	;
[51b73452]	3653
	3654	function_ptr:
[dd51906]	3655	ptrref_operator function_declarator
[a5f9444]	3656	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3657	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3658	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3659	\| '(' function_ptr ')' attribute_list_opt
	3660	{ $$ = $2->addQualifiers( $4 ); }
	3661	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3662	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3663	;
[51b73452]	3664
	3665	function_array:
[4d51835]	3666	'(' function_ptr ')' array_dimension
	3667	{ $$ = $2->addArray( $4 ); }
[5e25953]	3668	\| '(' attribute_list function_ptr ')' array_dimension
	3669	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3670	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3671	{ $$ = $2->addArray( $4 ); }
[5e25953]	3672	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3673	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3674	\| '(' function_array ')' // redundant parenthesis
	3675	{ $$ = $2; }
[5e25953]	3676	\| '(' attribute_list function_array ')' // redundant parenthesis
	3677	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3678	;
[51b73452]	3679
[c0aa336]	3680	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3681	//
	3682	// f( a, b, c ) int a, *b, c[]; {}
	3683	//
	3684	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3685	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3686
[c0aa336]	3687	KR_function_declarator:
	3688	KR_function_no_ptr
	3689	\| KR_function_ptr
	3690	\| KR_function_array
[4d51835]	3691	;
[51b73452]	3692
[c0aa336]	3693	KR_function_no_ptr:
[4d51835]	3694	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3695	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3696	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3697	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3698	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3699	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3700	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3701	{ $$ = $2; }
[5e25953]	3702	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3703	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3704	;
[51b73452]	3705
[c0aa336]	3706	KR_function_ptr:
	3707	ptrref_operator KR_function_declarator
[a5f9444]	3708	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3709	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3710	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3711	\| '(' KR_function_ptr ')'
[4d51835]	3712	{ $$ = $2; }
[5e25953]	3713	\| '(' attribute_list KR_function_ptr ')'
	3714	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3715	;
[51b73452]	3716
[c0aa336]	3717	KR_function_array:
	3718	'(' KR_function_ptr ')' array_dimension
[4d51835]	3719	{ $$ = $2->addArray( $4 ); }
[5e25953]	3720	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3721	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3722	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3723	{ $$ = $2->addArray( $4 ); }
[5e25953]	3724	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3725	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3726	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3727	{ $$ = $2; }
[5e25953]	3728	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3729	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3730	;
[51b73452]	3731
[1f771fc]	3732	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3733	//
[b87a5ed]	3734	// typedef int foo;
	3735	// {
	3736	// int foo; // redefine typedef name in new scope
	3737	// }
[51b73452]	3738
[2871210]	3739	paren_type:
[f9c3100]	3740	typedef_name
[c4f68dc]	3741	{
[f9c3100]	3742	// hide type name in enclosing scope by variable name
[71a422a]	3743	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3744	}
[2871210]	3745	\| '(' paren_type ')'
[4d51835]	3746	{ $$ = $2; }
	3747	;
[51b73452]	3748
[5e25953]	3749	variable_type_redeclarator:
	3750	paren_type attribute_list_opt
	3751	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3752	\| variable_type_ptr
	3753	\| variable_type_array attribute_list_opt
[5e25953]	3754	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3755	\| variable_type_function attribute_list_opt
[5e25953]	3756	{ $$ = $1->addQualifiers( $2 ); }
	3757	;
	3758
[1f771fc]	3759	variable_type_ptr:
[c6b1105]	3760	ptrref_operator variable_type_redeclarator
[a5f9444]	3761	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3762	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3763	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3764	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3765	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3766	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3767	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3768	;
[51b73452]	3769
[1f771fc]	3770	variable_type_array:
[2871210]	3771	paren_type array_dimension
[4d51835]	3772	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3773	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3774	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3775	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3776	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3777	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3778	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3779	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3780	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3781	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3782	{ $$ = $2; }
[1f771fc]	3783	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3784	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3785	;
[51b73452]	3786
[1f771fc]	3787	variable_type_function:
[647e2ea]	3788	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3789	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3790	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3791	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3792	\| '(' variable_type_function ')' // redundant parenthesis
	3793	{ $$ = $2; }
	3794	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3795	{ $$ = $3->addQualifiers( $2 ); }
	3796	;
	3797
	3798	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3799	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3800	// arrays and functions.
	3801
	3802	function_type_redeclarator:
	3803	function_type_no_ptr attribute_list_opt
	3804	{ $$ = $1->addQualifiers( $2 ); }
	3805	\| function_type_ptr
	3806	\| function_type_array attribute_list_opt
	3807	{ $$ = $1->addQualifiers( $2 ); }
	3808	;
	3809
	3810	function_type_no_ptr:
[647e2ea]	3811	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3812	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3813	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3814	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3815	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3816	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3817	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3818	{ $$ = $2; }
[1f771fc]	3819	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3820	{ $$ = $3->addQualifiers( $2 ); }
	3821	;
	3822
	3823	function_type_ptr:
	3824	ptrref_operator function_type_redeclarator
	3825	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3826	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3827	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3828	\| '(' function_type_ptr ')' attribute_list_opt
	3829	{ $$ = $2->addQualifiers( $4 ); }
	3830	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3831	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3832	;
	3833
	3834	function_type_array:
	3835	'(' function_type_ptr ')' array_dimension
	3836	{ $$ = $2->addArray( $4 ); }
	3837	\| '(' attribute_list function_type_ptr ')' array_dimension
	3838	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3839	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3840	{ $$ = $2->addArray( $4 ); }
	3841	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3842	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3843	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3844	{ $$ = $2; }
[1f771fc]	3845	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3846	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3847	;
[51b73452]	3848
[c0aa336]	3849	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3850	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3851	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3852	// pointers to arrays and functions.
[51b73452]	3853
	3854	identifier_parameter_declarator:
[4d51835]	3855	paren_identifier attribute_list_opt
[1db21619]	3856	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3857	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3858	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3859	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3860	\| identifier_parameter_ptr
	3861	\| identifier_parameter_array attribute_list_opt
[1db21619]	3862	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3863	\| identifier_parameter_function attribute_list_opt
[1db21619]	3864	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3865	;
[51b73452]	3866
	3867	identifier_parameter_ptr:
[dd51906]	3868	ptrref_operator identifier_parameter_declarator
[a5f9444]	3869	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3870	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3871	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3872	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3873	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3874	;
[51b73452]	3875
	3876	identifier_parameter_array:
[4d51835]	3877	paren_identifier array_parameter_dimension
	3878	{ $$ = $1->addArray( $2 ); }
	3879	\| '(' identifier_parameter_ptr ')' array_dimension
	3880	{ $$ = $2->addArray( $4 ); }
	3881	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3882	{ $$ = $2->addArray( $4 ); }
	3883	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3884	{ $$ = $2; }
	3885	;
[51b73452]	3886
	3887	identifier_parameter_function:
[647e2ea]	3888	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3889	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3890	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3891	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3892	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3893	{ $$ = $2; }
	3894	;
[b87a5ed]	3895
[de62360d]	3896	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3897	// e.g.:
[c11e31c]	3898	//
[b87a5ed]	3899	// typedef int foo;
[114014c]	3900	// forall( otype T ) struct foo;
[b87a5ed]	3901	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3902	//
[c0aa336]	3903	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3904
[2871210]	3905	type_parameter_redeclarator:
[f9c3100]	3906	typedef_name attribute_list_opt
[1db21619]	3907	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3908	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3909	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3910	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3911	\| type_parameter_ptr
	3912	\| type_parameter_array attribute_list_opt
[1db21619]	3913	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3914	\| type_parameter_function attribute_list_opt
[1db21619]	3915	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3916	;
[51b73452]	3917
[f9c3100]	3918	typedef_name:
[4d51835]	3919	TYPEDEFname
[7fdb94e1]	3920	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3921	\| TYPEGENname
[7fdb94e1]	3922	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3923	;
[51b73452]	3924
[2871210]	3925	type_parameter_ptr:
[dd51906]	3926	ptrref_operator type_parameter_redeclarator
[a5f9444]	3927	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3928	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3929	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3930	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3931	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3932	;
[51b73452]	3933
[2871210]	3934	type_parameter_array:
[f9c3100]	3935	typedef_name array_parameter_dimension
[4d51835]	3936	{ $$ = $1->addArray( $2 ); }
[2871210]	3937	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3938	{ $$ = $2->addArray( $4 ); }
	3939	;
[51b73452]	3940
[2871210]	3941	type_parameter_function:
[7e13b11]	3942	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3943	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3944	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3945	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3946	;
[b87a5ed]	3947
[de62360d]	3948	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3949	// which the type applies, e.g.:
[c11e31c]	3950	//
[b87a5ed]	3951	// sizeof( int );
[c0aa336]	3952	// sizeof( int * );
[b87a5ed]	3953	// sizeof( int [10] );
[c0aa336]	3954	// sizeof( int (*)() );
	3955	// sizeof( int () );
[c11e31c]	3956	//
[de62360d]	3957	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3958	// and functions versus pointers to arrays and functions.
[51b73452]	3959
	3960	abstract_declarator:
[4d51835]	3961	abstract_ptr
	3962	\| abstract_array attribute_list_opt
[1db21619]	3963	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3964	\| abstract_function attribute_list_opt
[1db21619]	3965	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3966	;
[51b73452]	3967
	3968	abstract_ptr:
[dd51906]	3969	ptrref_operator
[a5f9444]	3970	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3971	\| ptrref_operator type_qualifier_list
[ce8c12f]	3972	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3973	\| ptrref_operator abstract_declarator
[a5f9444]	3974	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3975	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3976	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3977	\| '(' abstract_ptr ')' attribute_list_opt
	3978	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3979	;
[51b73452]	3980
	3981	abstract_array:
[4d51835]	3982	array_dimension
	3983	\| '(' abstract_ptr ')' array_dimension
	3984	{ $$ = $2->addArray( $4 ); }
	3985	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3986	{ $$ = $2->addArray( $4 ); }
	3987	\| '(' abstract_array ')' // redundant parenthesis
	3988	{ $$ = $2; }
	3989	;
[51b73452]	3990
	3991	abstract_function:
[7e13b11]	3992	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3993	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3994	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3995	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3996	\| '(' abstract_function ')' // redundant parenthesis
	3997	{ $$ = $2; }
	3998	;
[51b73452]	3999
	4000	array_dimension:
[4d51835]	4001	// Only the first dimension can be empty.
[2871210]	4002	'[' ']'
[a5f9444]	4003	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	4004	\| '[' ']' multi_array_dimension
[a5f9444]	4005	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	4006	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	4007	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	4008	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	4009	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	4010
	4011	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	4012	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	4013
[d41735a]	4014	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	4015	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	4016	\| multi_array_dimension
	4017	;
[51b73452]	4018
[647e2ea]	4019	// array_dimension_list:
	4020	// assignment_expression
	4021	// \| array_dimension_list ',' assignment_expression
	4022	// ;
	4023
[d41735a]	4024	array_type_list:
	4025	basic_type_name
[bb7422a]	4026	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4027	\| type_name
[bb7422a]	4028	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4029	\| assignment_expression upupeq assignment_expression
	4030	\| array_type_list ',' basic_type_name
[b93c544]	4031	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4032	\| array_type_list ',' type_name
[b93c544]	4033	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4034	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4035	;
	4036
	4037	upupeq:
	4038	'~'
	4039	{ $$ = OperKinds::LThan; }
	4040	\| ErangeUpEq
	4041	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4042	;
[d41735a]	4043
[51b73452]	4044	multi_array_dimension:
[c0a33d2]	4045	'[' push assignment_expression pop ']'
[a5f9444]	4046	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	4047	\| '[' push '*' pop ']' // C99
[4d51835]	4048	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	4049	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	4050	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	4051	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	4052	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4053	;
[51b73452]	4054
[c11e31c]	4055	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4056	// identifier to which the type applies, e.g.:
	4057	//
[c0aa336]	4058	// int f( int ); // not handled here
	4059	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4060	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4061	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4062	//
[de62360d]	4063	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4064	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4065	// parenthesis around a typedef name:
[c0aa336]	4066	//
	4067	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4068	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4069	// not as redundant parentheses around the identifier."
	4070	//
	4071	// For example:
	4072	//
	4073	// typedef float T;
	4074	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4075	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4076	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4077	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4078	//
	4079	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4080	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4081	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4082	// functions.
[51b73452]	4083
[59c7e3e]	4084	abstract_parameter_declarator_opt:
	4085	// empty
	4086	{ $$ = nullptr; }
	4087	\| abstract_parameter_declarator
	4088	;
	4089
[51b73452]	4090	abstract_parameter_declarator:
[4d51835]	4091	abstract_parameter_ptr
[b6b3c42]	4092	\| '&' MUTEX attribute_list_opt
[446740a]	4093	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4094	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4095	\| abstract_parameter_array attribute_list_opt
[1db21619]	4096	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4097	\| abstract_parameter_function attribute_list_opt
[1db21619]	4098	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4099	;
[51b73452]	4100
	4101	abstract_parameter_ptr:
[dd51906]	4102	ptrref_operator
[ce8c12f]	4103	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4104	\| ptrref_operator type_qualifier_list
[ce8c12f]	4105	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4106	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4107	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4108	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4109	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4110	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4111	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4112	;
[51b73452]	4113
	4114	abstract_parameter_array:
[4d51835]	4115	array_parameter_dimension
	4116	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4117	{ $$ = $2->addArray( $4 ); }
	4118	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4119	{ $$ = $2->addArray( $4 ); }
	4120	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4121	{ $$ = $2; }
	4122	;
[51b73452]	4123
	4124	abstract_parameter_function:
[7e13b11]	4125	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4126	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4127	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4128	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4129	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4130	{ $$ = $2; }
	4131	;
[51b73452]	4132
	4133	array_parameter_dimension:
[4d51835]	4134	// Only the first dimension can be empty or have qualifiers.
	4135	array_parameter_1st_dimension
	4136	\| array_parameter_1st_dimension multi_array_dimension
	4137	{ $$ = $1->addArray( $2 ); }
	4138	\| multi_array_dimension
	4139	;
[51b73452]	4140
[c11e31c]	4141	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4142	//
[de62360d]	4143	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4144	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4145
	4146	array_parameter_1st_dimension:
[2871210]	4147	'[' ']'
[a5f9444]	4148	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4149	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4150	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4151	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4152	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4153	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4154	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4155	\| '[' push type_qualifier_list assignment_expression pop ']'
	4156	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4157	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4158	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4159	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4160	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4161	;
[b87a5ed]	4162
[c0aa336]	4163	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4164	//
[71a422a]	4165	// struct S {
	4166	// int;
	4167	// int *;
	4168	// int [10];
	4169	// int (*)();
	4170	// };
[51b73452]	4171
	4172	variable_abstract_declarator:
[4d51835]	4173	variable_abstract_ptr
	4174	\| variable_abstract_array attribute_list_opt
[1db21619]	4175	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4176	\| variable_abstract_function attribute_list_opt
[1db21619]	4177	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4178	;
[51b73452]	4179
	4180	variable_abstract_ptr:
[dd51906]	4181	ptrref_operator
[a5f9444]	4182	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4183	\| ptrref_operator type_qualifier_list
[ce8c12f]	4184	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4185	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4186	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4187	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4188	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4189	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4190	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4191	;
[51b73452]	4192
	4193	variable_abstract_array:
[4d51835]	4194	array_dimension
	4195	\| '(' variable_abstract_ptr ')' array_dimension
	4196	{ $$ = $2->addArray( $4 ); }
	4197	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4198	{ $$ = $2->addArray( $4 ); }
	4199	\| '(' variable_abstract_array ')' // redundant parenthesis
	4200	{ $$ = $2; }
	4201	;
[51b73452]	4202
	4203	variable_abstract_function:
[647e2ea]	4204	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4205	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4206	\| '(' variable_abstract_function ')' // redundant parenthesis
	4207	{ $$ = $2; }
	4208	;
[b87a5ed]	4209
[de62360d]	4210	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4211	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4212
[c0aa336]	4213	cfa_identifier_parameter_declarator_tuple: // CFA
	4214	cfa_identifier_parameter_declarator_no_tuple
	4215	\| cfa_abstract_tuple
	4216	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4217	{ $$ = $2->addQualifiers( $1 ); }
	4218	;
[b87a5ed]	4219
[c0aa336]	4220	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4221	cfa_identifier_parameter_ptr
	4222	\| cfa_identifier_parameter_array
[4d51835]	4223	;
[b87a5ed]	4224
[c0aa336]	4225	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4226	// No SUE declaration in parameter list.
	4227	ptrref_operator type_specifier_nobody
[a5f9444]	4228	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4229	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4230	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4231	\| ptrref_operator cfa_abstract_function
[a5f9444]	4232	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4233	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4234	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4235	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4236	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4237	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4238	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4239	;
[b87a5ed]	4240
[c0aa336]	4241	cfa_identifier_parameter_array: // CFA
[de62360d]	4242	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4243	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4244	'[' ']' type_specifier_nobody
[a5f9444]	4245	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4246	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4247	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4248	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4249	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4250	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4251	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4252	\| multi_array_dimension type_specifier_nobody
[4d51835]	4253	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4254
[c0aa336]	4255	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4256	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4257	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4258	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4259	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4260	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4261	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4262	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4263	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4264	{ $$ = $2->addNewArray( $1 ); }
	4265	;
[51b73452]	4266
[c0aa336]	4267	cfa_array_parameter_1st_dimension:
[c0a33d2]	4268	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4269	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4270	\| '[' push type_qualifier_list assignment_expression pop ']'
	4271	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4272	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4273	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4274	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4275	// appear in this context.
[c0a33d2]	4276	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4277	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4278	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4279	;
[b87a5ed]	4280
[de62360d]	4281	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4282	// identifier to which the type applies, e.g.:
[c11e31c]	4283	//
[b87a5ed]	4284	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4285	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4286	//
	4287	// These rules need LR(3):
	4288	//
[c0aa336]	4289	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4290	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4291	//
	4292	// since a function return type can be syntactically identical to a tuple type:
	4293	//
[b87a5ed]	4294	// [int, int] t;
	4295	// [int, int] f( int );
[c11e31c]	4296	//
[2871210]	4297	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4298	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4299	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4300	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4301
[c0aa336]	4302	cfa_abstract_declarator_tuple: // CFA
	4303	cfa_abstract_tuple
	4304	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4305	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4306	\| cfa_abstract_declarator_no_tuple
[4d51835]	4307	;
[b87a5ed]	4308
[c0aa336]	4309	cfa_abstract_declarator_no_tuple: // CFA
	4310	cfa_abstract_ptr
	4311	\| cfa_abstract_array
[4d51835]	4312	;
[b87a5ed]	4313
[c0aa336]	4314	cfa_abstract_ptr: // CFA
[dd51906]	4315	ptrref_operator type_specifier
[a5f9444]	4316	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4317	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4318	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4319	\| ptrref_operator cfa_abstract_function
[a5f9444]	4320	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4321	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4322	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4323	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4324	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4325	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4326	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4327	;
[b87a5ed]	4328
[c0aa336]	4329	cfa_abstract_array: // CFA
[de62360d]	4330	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4331	// empty (void) function return type.
[2871210]	4332	'[' ']' type_specifier
[2298f728]	4333	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4334	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4335	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4336	\| multi_array_dimension type_specifier
	4337	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4338	\| '[' ']' cfa_abstract_ptr
[2298f728]	4339	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4340	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4341	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4342	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4343	{ $$ = $2->addNewArray( $1 ); }
	4344	;
[b87a5ed]	4345
[c0aa336]	4346	cfa_abstract_tuple: // CFA
[c0a33d2]	4347	'[' push cfa_abstract_parameter_list pop ']'
	4348	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4349	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4350	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4351	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4352	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4353	;
[b87a5ed]	4354
[c0aa336]	4355	cfa_abstract_function: // CFA
[647e2ea]	4356	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4357	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4358	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4359	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4360	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4361	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4362	;
[b87a5ed]	4363
[de62360d]	4364	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4365	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4366	//
[de62360d]	4367	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4368	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4369	//
	4370	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4371	// prototype-format parameter type declarators) is an obsolescent feature."
	4372	//
[de62360d]	4373	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4374	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4375
[e1d66c84]	4376	// ********************** MISCELLANEOUS ******************************
[51b73452]	4377
[b87a5ed]	4378	comma_opt: // redundant comma
[4d51835]	4379	// empty
	4380	\| ','
	4381	;
[51b73452]	4382
[5a51798]	4383	default_initializer_opt:
[4d51835]	4384	// empty
[58dd019]	4385	{ $$ = nullptr; }
[4d51835]	4386	\| '=' assignment_expression
	4387	{ $$ = $2; }
	4388	;
[51b73452]	4389
	4390	%%
[a1c9ddd]	4391
[c11e31c]	4392	// ----end of grammar----
[51b73452]	4393
[c11e31c]	4394	// Local Variables: //
[b87a5ed]	4395	// mode: c++ //
[de62360d]	4396	// tab-width: 4 //
[7e13b11]	4397	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4398	// End: //

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