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Last change on this file since f9b42bd was 206ecae, checked in by Peter A. Buhr <pabuhr@…>, 14 months ago
remove spurious push/pop from grammar contexts where type declarations are not allowed
Property mode set to `100644`
File size: 178.7 KB

Rev	Line
[b87a5ed]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[9335ecc]	7	// parser.yy --
[974906e2]	8	//
[c11e31c]	9	// Author : Peter A. Buhr
	10	// Created On : Sat Sep 1 20:22:55 2001
[04c78215]	11	// Last Modified By : Peter A. Buhr
[206ecae]	12	// Last Modified On : Mon Aug 12 10:21:46 2024
	13	// Update Count : 6737
[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.
[473d1da0]	334	CondCtl * ifctl;
[32d6fdc]	335	ForCtrl * forctl;
	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
[f1da02c]	368	%token INT128 UINT128 uuFLOAT80 uuFLOAT128 // GCC
[e15853c]	369	%token uFLOAT16 uFLOAT32 uFLOAT32X uFLOAT64 uFLOAT64X uFLOAT128 // GCC
[15f769c]	370	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	371	%token ZERO_T ONE_T // CFA
[a8ced63]	372	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	373	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	374	%token ENUM STRUCT UNION
[c27fb59]	375	%token EXCEPTION // CFA
[553772b]	376	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	377	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	378	// %token RESUME // CFA
[1f652a7]	379	%token LABEL // GCC
[25744d2]	380	%token SUSPEND // CFA
[b87a5ed]	381	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	382	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	383	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	384	%token CORUN COFOR
[4744074]	385	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	386	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	387	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	388
[c11e31c]	389	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	390	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	391	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	392	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	393	%token<tok> DIRECTIVE
[1b29996]	394	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	395	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	396	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	397	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	398
[c11e31c]	399	// multi-character operators
[b87a5ed]	400	%token ARROW // ->
	401	%token ICR DECR // ++ --
	402	%token LS RS // << >>
	403	%token LE GE EQ NE // <= >= == !=
	404	%token ANDAND OROR // && \|\|
[647e2ea]	405	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	406
[e5f2a67]	407	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	408	%token PLUSassign MINUSassign // += -=
	409	%token LSassign RSassign // <<= >>=
	410	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	411
[01afd8d]	412	%token ErangeUp ErangeUpEq ErangeDown ErangeDownEq // +~ +~=/~= -~ -~=
[e7aed49]	413	%token ATassign // @=
[097e2b0]	414
[e16eb460]	415	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	416	%type<tok> quasi_keyword
[32d6fdc]	417	%type<expr> string_literal
[ab57786]	418	%type<str> string_literal_list
[51b73452]	419
[71a422a]	420	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	421
[c11e31c]	422	// expressions
[32d6fdc]	423	%type<expr> constant
[71a422a]	424	%type<expr> tuple tuple_expression_list
[32d6fdc]	425	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	426	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	427	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	428	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	429	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	430	%type<expr> logical_AND_expression logical_OR_expression
	431	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	432	%type<expr> comma_expression comma_expression_opt
	433	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[473d1da0]	434	%type<ifctl> conditional_declaration
[71a422a]	435	%type<forctl> for_control_expression for_control_expression_list
[32d6fdc]	436	%type<oper> upupeq updown updowneq downupdowneq
	437	%type<expr> subrange
[c0aa336]	438	%type<decl> asm_name_opt
[71a422a]	439	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	440	%type<labels> label_list
	441	%type<expr> asm_clobbers_list_opt
	442	%type<is_volatile> asm_volatile_opt
	443	%type<expr> handler_predicate_opt
[67d4e37]	444	%type<genexpr> generic_association generic_assoc_list
[51b73452]	445
[c11e31c]	446	// statements
[71a422a]	447	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	448	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	449	%type<stmt> selection_statement
[71a422a]	450	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	451	%type<expr> case_value
[71a422a]	452	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	453	%type<stmt> iteration_statement jump_statement
[71a422a]	454	%type<stmt> expression_statement asm_statement
[32d6fdc]	455	%type<stmt> with_statement
	456	%type<expr> with_clause_opt
[11ab0b4a]	457	%type<stmt> corun_statement cofor_statement
[32d6fdc]	458	%type<stmt> exception_statement
[6611177]	459	%type<clause> handler_clause finally_clause
[32d6fdc]	460	%type<except_kind> handler_key
	461	%type<stmt> mutex_statement
	462	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	463	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	464	%type<wfs> wor_waitfor_clause
[6e1e2d0]	465	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	466
[c11e31c]	467	// declarations
[c0aa336]	468	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	469	%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]	470	%type<decl> abstract_parameter_declaration
[51b73452]	471
[e307e12]	472	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	473	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	474
[9997fee]	475	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	476
[32d6fdc]	477	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	478
[84d58c5]	479	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	480	%type<type> basic_type_name_type
	481	%type<type> vtable vtable_opt default_opt
[51b73452]	482
[4040425]	483	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	484
	485	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	486	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	487
[d0ffed1]	488	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	489
[a8ced63]	490	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	491	%type<init> enumerator_value_opt
[51b73452]	492
[3d56d15b]	493	%type<decl> external_definition external_definition_list external_definition_list_opt
	494
	495	%type<decl> exception_declaration
[51b73452]	496
[12f1156]	497	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	498	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	499
[4d51835]	500	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	501
[d3bc0ad]	502	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	503	%type<decl> identifier_list
[51b73452]	504
[c0aa336]	505	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	506	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	507	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	508
[c0aa336]	509	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	510
[679e644]	511	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	512	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	513
[c0aa336]	514	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	515	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	516
[647e2ea]	517	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	518
[c0aa336]	519	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	520
[b9be000b]	521	%type<decl> c_declaration static_assert
[c0aa336]	522	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	523	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	524
[647e2ea]	525	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	526
[2871210]	527	%type<decl> paren_identifier paren_type
[51b73452]	528
[0da3e2c]	529	%type<decl> storage_class storage_class_list
[51b73452]	530
[d0ffed1]	531	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	532
[5a51798]	533	%type<tclass> type_class new_type_class
[51b73452]	534	%type<decl> type_declarator type_declarator_name type_declaring_list
	535
[6cef439]	536	%type<decl> type_declaration_specifier type_type_specifier
	537	%type<type> type_name typegen_name
[f9c3100]	538	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	539
[1f771fc]	540	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	541	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	542
	543	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	544
[84d58c5]	545	%type<decl> type type_no_function
	546	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	547
[647e2ea]	548	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	549
[6cef439]	550	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	551	%type<type> type_qualifier_name
[f9c3100]	552	%type<decl> type_specifier type_specifier_nobody
[51b73452]	553
[c0aa336]	554	%type<decl> variable_declarator variable_ptr variable_array variable_function
	555	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	556
[f9c3100]	557	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	558
[c11e31c]	559	// initializers
[32d6fdc]	560	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	561
[c11e31c]	562	// designators
[32d6fdc]	563	%type<expr> designator designator_list designation
[51b73452]	564
	565
[65d6de4]	566	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	567	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	568	// if ( C ) S1 else S2
	569	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	570	// Similar issues exit with the waitfor statement.
[51b73452]	571
[9fd9d015]	572	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	573	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	574	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	575	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	576	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	577	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	578	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	579	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	580	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	583	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	584	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	585	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	586
[51b73452]	587
[65d6de4]	588	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	589	// forall( otype T ) struct Foo { T v; };
	590	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	591	// Foo ( *fp )( int );
	592	// `---' matches start of TYPEGENname '('
[fc20514]	593	// must be:
[a16a7ec]	594	// Foo( int ) ( *fp )( int );
[fc20514]	595	// The same problem occurs here:
	596	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	597	// must be:
	598	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	599
	600	// Order of these lines matters (low-to-high precedence).
	601	%precedence TYPEGENname
[284da8c]	602	%precedence '}'
[65d6de4]	603	%precedence '('
	604
[c786e1d]	605	// %precedence RESUME
	606	// %precedence '{'
	607	// %precedence ')'
	608
[f38e7d7]	609	%locations // support location tracking for error messages
[930f69e]	610
[b87a5ed]	611	%start translation_unit // parse-tree root
[51b73452]	612
	613	%%
[e1d66c84]	614	// ********************** Namespace Management ******************************
[c11e31c]	615
[3d26610]	616	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	617	// which are lexically identical.
[c11e31c]	618	//
[3d26610]	619	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	620	// foo f; // to allow it to appear in this context
[c11e31c]	621	//
[3d26610]	622	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	623	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	624	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	625	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	626	// must be distinguished by the lexical scanner.
[c11e31c]	627	//
[3d26610]	628	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	629	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	630	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	631	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	632	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	633	// This requires distinguishing between type names that are local to the current declaration scope and those that
	634	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	635	//
[3d26610]	636	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	637	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	638	// around the list separator.
	639	//
[71a422a]	640	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	641	// push pop push pop
[51b73452]	642
	643	push:
[ab57786]	644	{ typedefTable.enterScope(); }
[4d51835]	645	;
[51b73452]	646
	647	pop:
[ab57786]	648	{ typedefTable.leaveScope(); }
[4d51835]	649	;
[51b73452]	650
[e1d66c84]	651	// ********************** CONSTANTS ******************************
[51b73452]	652
	653	constant:
[de62360d]	654	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	655	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	656	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	657	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	658	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	659	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	660	;
[51b73452]	661
[5b2edbc]	662	quasi_keyword: // CFA
	663	TIMEOUT
[9fd9d015]	664	\| WAND
[5b2edbc]	665	\| WOR
[9fb1367]	666	\| CATCH
	667	\| RECOVER
	668	\| CATCHRESUME
	669	\| FIXUP
	670	\| FINALLY
[5b2edbc]	671	;
	672
[033ff37]	673	identifier:
[4d51835]	674	IDENTIFIER
[5b2edbc]	675	\| quasi_keyword
[e16eb460]	676	;
	677
	678	identifier_at:
	679	identifier
[679e644]	680	\| '@' // CFA
	681	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	682	;
[51b73452]	683
[12f1156]	684	identifier_or_type_name:
	685	identifier
	686	\| TYPEDEFname
	687	\| TYPEGENname
	688	;
	689
[ab57786]	690	string_literal:
[32d6fdc]	691	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	692	;
	693
[b87a5ed]	694	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	695	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	696	\| string_literal_list STRINGliteral
	697	{
[15697ff]	698	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	699	delete $2; // allocated by lexer
[ab57786]	700	$$ = $1; // conversion from tok to str
[7bf7fb9]	701	}
[4d51835]	702	;
[51b73452]	703
[e1d66c84]	704	// ********************** EXPRESSIONS ******************************
[51b73452]	705
	706	primary_expression:
[4d51835]	707	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	708	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	709	\| quasi_keyword
[bb7422a]	710	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	711	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	712	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	713	\| tuple
[4d51835]	714	\| '(' comma_expression ')'
	715	{ $$ = $2; }
	716	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	717	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	718	\| type_name '.' identifier // CFA, nested type
[6cef439]	719	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	720	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	721	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	722	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	723	{
	724	// add the missing control expression to the GenericExpr and return it
[702e826]	725	$5->control = maybeMoveBuild( $3 );
[d807ca28]	726	$$ = new ExpressionNode( $5 );
	727	}
[c786e1d]	728	// \| RESUME '(' comma_expression ')'
	729	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	730	// \| RESUME '(' comma_expression ')' compound_statement
	731	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	732	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	733	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	734	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	735	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	736	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	737	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	738	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	739	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	740	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	741	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	742	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	743	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	744	;
	745
	746	generic_assoc_list: // C11
[d807ca28]	747	generic_association
[24c3b67]	748	\| generic_assoc_list ',' generic_association
[d807ca28]	749	{
	750	// steal the association node from the singleton and delete the wrapper
[bb7422a]	751	assert( 1 == $3->associations.size() );
	752	$1->associations.push_back( $3->associations.front() );
[d807ca28]	753	delete $3;
	754	$$ = $1;
	755	}
[24c3b67]	756	;
	757
	758	generic_association: // C11
	759	type_no_function ':' assignment_expression
[d807ca28]	760	{
	761	// create a GenericExpr wrapper with one association pair
[bb7422a]	762	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	763	}
[24c3b67]	764	\| DEFAULT ':' assignment_expression
[bb7422a]	765	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	766	;
[51b73452]	767
	768	postfix_expression:
[4d51835]	769	primary_expression
[1d71208]	770	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	771	// Historic, transitional: Disallow commas in subscripts.
	772	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	773	// Current: Commas in subscripts make tuples.
[b93c544]	774	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	775	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	776	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	777	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	778	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	779	// equivalent to the old x[i,j].
[bb7422a]	780	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	781	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	782	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	783	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	784	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	785	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	786	{
	787	Token fn;
	788	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	789	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	790	}
[cbbd8fd7]	791	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	792	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	793	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
	794	// { SemanticError( yylloc, "va_arg is currently unimplemented." ); $$ = nullptr; }
[b93c544]	795	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, new string( "__builtin_va_arg" ) ) ),
	796	$3->set_last( (ExpressionNode *)($6 ? $6->addType( $5 ) : $5) ) ) ); }
[948fdef]	797	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	798	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	799	\| constant '`' identifier // CFA, postfix call
[bb7422a]	800	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	801	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	802	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	803
	804	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	805	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	806	// them. For example:
	807	//
	808	// struct S;
	809	// forall(T) struct T;
	810	// union U;
	811	// enum E { S, T, E };
	812	// struct Z { int S, T, Z, E, U; };
	813	// void fred () {
	814	// Z z;
	815	// z.S; // lexer returns S is TYPEDEFname
	816	// z.T; // lexer returns T is TYPEGENname
	817	// z.Z; // lexer returns Z is TYPEDEFname
	818	// z.U; // lexer returns U is TYPEDEFname
	819	// z.E; // lexer returns E is TYPEDEFname
	820	// }
[12f1156]	821	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	822	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	823
[df22130]	824	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	825	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	826	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	827	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	828	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	829	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	830	\| postfix_expression '.' aggregate_control
[bb7422a]	831	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	832	\| postfix_expression ARROW identifier
[bb7422a]	833	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	834	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	835	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	836	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	837	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	838	\| postfix_expression ICR
[bb7422a]	839	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	840	\| postfix_expression DECR
[bb7422a]	841	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	842	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	843	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	844	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	845	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	846	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	847	{
[9706554]	848	Token fn;
[ecb27a7]	849	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	850	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	851	}
[4d51835]	852	;
[51b73452]	853
[679e644]	854	field_name_list: // CFA, tuple field selector
[4d51835]	855	field
[b93c544]	856	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	857	;
[b87a5ed]	858
	859	field: // CFA, tuple field selector
[faddbd8]	860	field_name
[930f69e]	861	\| FLOATING_DECIMALconstant field
[bb7422a]	862	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	863	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	864	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	865	\| field_name '.' field
[bb7422a]	866	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	867	\| field_name '.' '[' field_name_list ']'
[bb7422a]	868	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	869	\| field_name ARROW field
[bb7422a]	870	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	871	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	872	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	873	;
[51b73452]	874
[faddbd8]	875	field_name:
[df22130]	876	INTEGERconstant fraction_constants_opt
[bb7422a]	877	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	878	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	879	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	880	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	881	{
[bb7422a]	882	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	883	}
[1b29996]	884	;
	885
[df22130]	886	fraction_constants_opt:
[1b29996]	887	// empty
[8780e30]	888	{ $$ = nullptr; }
[df22130]	889	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	890	{
[bb7422a]	891	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	892	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	893	}
[faddbd8]	894	;
	895
[51b73452]	896	unary_expression:
[4d51835]	897	postfix_expression
[c6b1105]	898	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	899	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	900	\| constant
[ab57786]	901	\| string_literal
[32d6fdc]	902	{ $$ = $1; }
[4d51835]	903	\| EXTENSION cast_expression // GCC
[e04ef3a]	904	{ $$ = $2->set_extension( true ); }
[c6b1105]	905	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	906	// { * X; } // dereference X
	907	// { * int X; } // CFA declaration of pointer to int
[51e076e]	908	\| ptrref_operator cast_expression // CFA
[9706554]	909	{
	910	switch ( $1 ) {
[bb7422a]	911	case OperKinds::AddressOf:
	912	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	913	break;
[bb7422a]	914	case OperKinds::PointTo:
	915	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	916	break;
[bb7422a]	917	case OperKinds::And:
	918	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	919	break;
[bb7422a]	920	default:
[9706554]	921	assert( false );
	922	}
	923	}
[4d51835]	924	\| unary_operator cast_expression
[bb7422a]	925	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	926	\| ICR unary_expression
[bb7422a]	927	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	928	\| DECR unary_expression
[bb7422a]	929	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	930	\| SIZEOF unary_expression
[bb7422a]	931	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[84d58c5]	932	\| SIZEOF '(' type_no_function ')'
[bb7422a]	933	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	934	\| ALIGNOF unary_expression // GCC, variable alignment
[bb7422a]	935	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a2e0687]	936	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	937	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	938
	939	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	940	// look ahead, so the cfa_abstract_function is factored out.
	941	\| SIZEOF '(' cfa_abstract_function ')'
	942	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	943	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	944	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	945
[033ff37]	946	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	947	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	948	\| TYPEID '(' type ')'
[1f652a7]	949	{
	950	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	951	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	952	}
[0c327ce]	953	\| COUNTOF unary_expression
	954	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	955	\| COUNTOF '(' type_no_function ')'
	956	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	957	;
[51b73452]	958
[dd51906]	959	ptrref_operator:
[d9e2280]	960	'*' { $$ = OperKinds::PointTo; }
	961	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	962	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	963	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	964	;
	965
[51b73452]	966	unary_operator:
[d9e2280]	967	'+' { $$ = OperKinds::UnPlus; }
	968	\| '-' { $$ = OperKinds::UnMinus; }
	969	\| '!' { $$ = OperKinds::Neg; }
	970	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	971	;
[51b73452]	972
	973	cast_expression:
[4d51835]	974	unary_expression
[84d58c5]	975	\| '(' type_no_function ')' cast_expression
[bb7422a]	976	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	977	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	978	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	979	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	980	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	981	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	982	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	983	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	984	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	985	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	986	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	987	\| '(' COERCE type_no_function ')' cast_expression // CFA
	988	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	989	\| '(' qualifier_cast_list ')' cast_expression // CFA
	990	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	991	// \| '(' type_no_function ')' tuple
[bb7422a]	992	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	993	;
[51b73452]	994
[1528a2c]	995	qualifier_cast_list:
	996	cast_modifier type_qualifier_name
	997	\| cast_modifier MUTEX
	998	\| qualifier_cast_list cast_modifier type_qualifier_name
	999	\| qualifier_cast_list cast_modifier MUTEX
	1000	;
	1001
	1002	cast_modifier:
	1003	'-'
	1004	\| '+'
	1005	;
	1006
[994d080]	1007	exponential_expression:
[4d51835]	1008	cast_expression
[994d080]	1009	\| exponential_expression '\\' cast_expression
[bb7422a]	1010	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1011	;
	1012
	1013	multiplicative_expression:
	1014	exponential_expression
	1015	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1016	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1017	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1018	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1019	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1020	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1021	;
[51b73452]	1022
	1023	additive_expression:
[4d51835]	1024	multiplicative_expression
	1025	\| additive_expression '+' multiplicative_expression
[bb7422a]	1026	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1027	\| additive_expression '-' multiplicative_expression
[bb7422a]	1028	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1029	;
[51b73452]	1030
	1031	shift_expression:
[4d51835]	1032	additive_expression
	1033	\| shift_expression LS additive_expression
[bb7422a]	1034	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1035	\| shift_expression RS additive_expression
[bb7422a]	1036	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1037	;
[51b73452]	1038
	1039	relational_expression:
[4d51835]	1040	shift_expression
	1041	\| relational_expression '<' shift_expression
[bb7422a]	1042	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1043	\| relational_expression '>' shift_expression
[bb7422a]	1044	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1045	\| relational_expression LE shift_expression
[bb7422a]	1046	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1047	\| relational_expression GE shift_expression
[bb7422a]	1048	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1049	;
[51b73452]	1050
	1051	equality_expression:
[4d51835]	1052	relational_expression
	1053	\| equality_expression EQ relational_expression
[bb7422a]	1054	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1055	\| equality_expression NE relational_expression
[bb7422a]	1056	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1057	;
[51b73452]	1058
	1059	AND_expression:
[4d51835]	1060	equality_expression
	1061	\| AND_expression '&' equality_expression
[bb7422a]	1062	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1063	;
[51b73452]	1064
	1065	exclusive_OR_expression:
[4d51835]	1066	AND_expression
	1067	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1068	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1069	;
[51b73452]	1070
	1071	inclusive_OR_expression:
[4d51835]	1072	exclusive_OR_expression
	1073	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1074	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1075	;
[51b73452]	1076
	1077	logical_AND_expression:
[4d51835]	1078	inclusive_OR_expression
	1079	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1080	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1081	;
[51b73452]	1082
	1083	logical_OR_expression:
[4d51835]	1084	logical_AND_expression
	1085	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1086	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1087	;
[51b73452]	1088
	1089	conditional_expression:
[4d51835]	1090	logical_OR_expression
	1091	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1092	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1093	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1094	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1095	;
[51b73452]	1096
	1097	constant_expression:
[4d51835]	1098	conditional_expression
	1099	;
[51b73452]	1100
[c1b0b8f]	1101	argument_expression_list_opt:
	1102	// empty
	1103	{ $$ = nullptr; }
	1104	\| argument_expression_list
	1105	;
	1106
	1107	argument_expression_list:
	1108	argument_expression
	1109	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1110	\| argument_expression_list ',' argument_expression // no empty argument
	1111	{ $$ = $1->set_last( $3 ); }
	1112	;
	1113
	1114	argument_expression:
	1115	'?' // CFA, default parameter
[daa4cc1]	1116	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1117	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1118	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1119	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1120	{ $$ = $4; }
[c1b0b8f]	1121	\| assignment_expression
	1122	;
	1123
[51b73452]	1124	assignment_expression:
[4d51835]	1125	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1126	conditional_expression
	1127	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1128	{
[25744d2]	1129	// if ( $2 == OperKinds::AtAssn ) {
	1130	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1131	// } else {
[bb7422a]	1132	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1133	// } // if
[9867cdb]	1134	}
[7fdb94e1]	1135	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1136	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1137	;
[51b73452]	1138
	1139	assignment_expression_opt:
[4d51835]	1140	// empty
[d1625f8]	1141	{ $$ = nullptr; }
[4d51835]	1142	\| assignment_expression
	1143	;
[b87a5ed]	1144
[9706554]	1145	assignment_operator:
[f9c3100]	1146	simple_assignment_operator
	1147	\| compound_assignment_operator
	1148	;
	1149
	1150	simple_assignment_operator:
[d9e2280]	1151	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1152	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1153	;
	1154
	1155	compound_assignment_operator:
	1156	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1157	\| MULTassign { $$ = OperKinds::MulAssn; }
	1158	\| DIVassign { $$ = OperKinds::DivAssn; }
	1159	\| MODassign { $$ = OperKinds::ModAssn; }
	1160	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1161	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1162	\| LSassign { $$ = OperKinds::LSAssn; }
	1163	\| RSassign { $$ = OperKinds::RSAssn; }
	1164	\| ANDassign { $$ = OperKinds::AndAssn; }
	1165	\| ERassign { $$ = OperKinds::ERAssn; }
	1166	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1167	;
[9706554]	1168
[b87a5ed]	1169	tuple: // CFA, tuple
[de62360d]	1170	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1171	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1172	// '[' ']'
	1173	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1174	// \| '[' push assignment_expression pop ']'
[1b29996]	1175	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1176	'[' ',' tuple_expression_list ']'
[b93c544]	1177	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1178	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1179	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1180	;
[51b73452]	1181
	1182	tuple_expression_list:
[0a6d8204]	1183	assignment_expression
	1184	\| '@' // CFA
	1185	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1186	\| tuple_expression_list ',' assignment_expression
[b93c544]	1187	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1188	\| tuple_expression_list ',' '@'
	1189	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1190	;
[51b73452]	1191
	1192	comma_expression:
[4d51835]	1193	assignment_expression
[9706554]	1194	\| comma_expression ',' assignment_expression
[bb7422a]	1195	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1196	;
[51b73452]	1197
	1198	comma_expression_opt:
[4d51835]	1199	// empty
[58dd019]	1200	{ $$ = nullptr; }
[4d51835]	1201	\| comma_expression
	1202	;
[51b73452]	1203
[e1d66c84]	1204	// ************************ STATEMENTS *****************************
[51b73452]	1205
	1206	statement:
[4d51835]	1207	labeled_statement
	1208	\| compound_statement
[c0a33d2]	1209	\| expression_statement
[4d51835]	1210	\| selection_statement
	1211	\| iteration_statement
	1212	\| jump_statement
[8b47e50]	1213	\| with_statement
[b6b3c42]	1214	\| mutex_statement
[5b2edbc]	1215	\| waitfor_statement
[9fd9d015]	1216	\| waituntil_statement
[11ab0b4a]	1217	\| corun_statement
	1218	\| cofor_statement
[4d51835]	1219	\| exception_statement
[2a8427c6]	1220	\| enable_disable_statement
[fae90d5f]	1221	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1222	\| asm_statement
[61fc4f6]	1223	\| DIRECTIVE
[bb7422a]	1224	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1225	;
[51b73452]	1226
	1227	labeled_statement:
[033ff37]	1228	// labels cannot be identifiers 0 or 1
[44a81853]	1229	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1230	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1231	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1232	{
[b1f2007d]	1233	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1234	"where a declaration, case, or default is not a statement.\n"
	1235	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1236	$$ = nullptr;
	1237	}
[4d51835]	1238	;
[51b73452]	1239
	1240	compound_statement:
[4d51835]	1241	'{' '}'
[bb7422a]	1242	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1243	\| '{' push
[5e25953]	1244	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1245	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1246	pop '}'
[bb7422a]	1247	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1248	;
[b87a5ed]	1249
[9bd6105]	1250	statement_decl_list: // C99
	1251	statement_decl
[35718a9]	1252	\| statement_decl_list statement_decl
[6d01d89]	1253	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1254	;
[51b73452]	1255
[9bd6105]	1256	statement_decl:
[4d51835]	1257	declaration // CFA, new & old style declarations
[e82aa9df]	1258	{ $$ = new StatementNode( $1 ); }
[4d51835]	1259	\| EXTENSION declaration // GCC
[6d01d89]	1260	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1261	\| function_definition
[e82aa9df]	1262	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1263	\| EXTENSION function_definition // GCC
[6d01d89]	1264	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1265	\| statement
[4d51835]	1266	;
[51b73452]	1267
[9bd6105]	1268	statement_list_nodecl:
[4d51835]	1269	statement
[9bd6105]	1270	\| statement_list_nodecl statement
[6d01d89]	1271	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1272	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1273	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1274	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1275	;
[51b73452]	1276
	1277	expression_statement:
[4d51835]	1278	comma_expression_opt ';'
[bb7422a]	1279	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1280	;
[51b73452]	1281
[7e13b11]	1282	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1283	// parenthesis:
	1284	//
[446740a]	1285	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1286	//
[7e13b11]	1287	// switch O { }
	1288	//
	1289	// O{} => object-constructor for conditional, switch body ???
	1290	// O{} => O for conditional followed by switch body
	1291	//
	1292	// C++ has this problem, as it has the same constructor syntax.
	1293	//
	1294	// switch sizeof ( T ) { }
	1295	//
	1296	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1297	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1298	//
	1299	// Note the two grammar rules for sizeof (alignof)
	1300	//
	1301	// \| SIZEOF unary_expression
	1302	// \| SIZEOF '(' type_no_function ')'
	1303	//
	1304	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1305
[51b73452]	1306	selection_statement:
[647e2ea]	1307	IF '(' conditional_declaration ')' statement %prec THEN
	1308	// explicitly deal with the shift/reduce conflict on if/else
	1309	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1310	\| IF '(' conditional_declaration ')' statement ELSE statement
	1311	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1312	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1313	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1314	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1315	{
[bb7422a]	1316	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1317	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1318	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1319	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1320	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1321	// statement.
[b93c544]	1322	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1323	}
[0442f93f]	1324	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1325	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1326	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1327	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1328	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1329	{
[bb7422a]	1330	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1331	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1332	}
[0442f93f]	1333	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1334	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1335	;
[b87a5ed]	1336
[473d1da0]	1337	conditional_declaration:
[35718a9]	1338	comma_expression
[473d1da0]	1339	{ $$ = new CondCtl( nullptr, $1 ); }
[35718a9]	1340	\| c_declaration // no semi-colon
[473d1da0]	1341	{ $$ = new CondCtl( $1, nullptr ); }
[35718a9]	1342	\| cfa_declaration // no semi-colon
[473d1da0]	1343	{ $$ = new CondCtl( $1, nullptr ); }
[6d49ea3]	1344	\| declaration comma_expression // semi-colon separated
[473d1da0]	1345	{ $$ = new CondCtl( $1, $2 ); }
[9fd9d015]	1346	;
[936e9f4]	1347
[de62360d]	1348	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1349	// clause allows a list of values and subranges.
[b87a5ed]	1350
	1351	case_value: // CFA
[4d51835]	1352	constant_expression { $$ = $1; }
	1353	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1354	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1355	\| subrange // CFA, subrange
	1356	;
[b87a5ed]	1357
	1358	case_value_list: // CFA
[6611177]	1359	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1360	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1361	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1362	;
[b87a5ed]	1363
	1364	case_label: // CFA
[0442f93f]	1365	CASE error // invalid syntax rule
[253d0b4]	1366	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1367	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1368	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1369	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1370	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1371	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1372	\| DEFAULT error // invalid syntax rule
[253d0b4]	1373	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1374	;
[b87a5ed]	1375
	1376	case_label_list: // CFA
[4d51835]	1377	case_label
[6611177]	1378	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1379	;
[b87a5ed]	1380
	1381	case_clause: // CFA
[bb7422a]	1382	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1383	;
[b87a5ed]	1384
	1385	switch_clause_list_opt: // CFA
[4d51835]	1386	// empty
[58dd019]	1387	{ $$ = nullptr; }
[4d51835]	1388	\| switch_clause_list
	1389	;
[b87a5ed]	1390
	1391	switch_clause_list: // CFA
[9bd6105]	1392	case_label_list statement_list_nodecl
[bb7422a]	1393	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1394	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1395	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1396	;
[b87a5ed]	1397
[51b73452]	1398	iteration_statement:
[5695645]	1399	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[bb7422a]	1400	{ $$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1401	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1402	{
[bb7422a]	1403	$$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1404	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1405	}
[473d1da0]	1406	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1407	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1408	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1409	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1410	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1411	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1412	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1413	{
[bb7422a]	1414	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1415	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1416	}
	1417	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1418	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1419	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1420	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1421	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1422	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1423	\| FOR '(' ')' statement ELSE statement // CFA
	1424	{
[bb7422a]	1425	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1426	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1427	}
[efc8f3e]	1428	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1429	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1430	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1431	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1432	;
	1433
[6d01d89]	1434	for_control_expression_list:
	1435	for_control_expression
	1436	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1437	// ForCtrl + ForCtrl:
	1438	// init + init => multiple declaration statements that are hoisted
	1439	// condition + condition => (expression) && (expression)
	1440	// change + change => (expression), (expression)
	1441	{
	1442	$1->init->set_last( $3->init );
	1443	if ( $1->condition ) {
	1444	if ( $3->condition ) {
[bb7422a]	1445	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1446	} // if
	1447	} else $1->condition = $3->condition;
	1448	if ( $1->change ) {
	1449	if ( $3->change ) {
[bb7422a]	1450	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1451	} // if
	1452	} else $1->change = $3->change;
	1453	$$ = $1;
	1454	}
[6d01d89]	1455	;
	1456
[51b73452]	1457	for_control_expression:
[6d01d89]	1458	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1459	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1460	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1461	{
[253d0b4]	1462	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1463	}
[6d01d89]	1464	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1465	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1466
[aa122e9]	1467	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1468	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1469	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1470	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1471
[aa122e9]	1472	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1473	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1474	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1475	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1476
[aa122e9]	1477	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1478	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1479	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1480	{
[4fee301]	1481	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1482	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1483	}
[aa122e9]	1484	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1485	{
[4fee301]	1486	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1487	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1488	}
[aa122e9]	1489	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1490	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1491	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1492	{
[4fee301]	1493	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1494	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1495	}
[aa122e9]	1496	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1497	{
[4fee301]	1498	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1499	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1500	}
[65ef0cd]	1501	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1502	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1503	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1504	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1505	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1506	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1507	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1508	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1509	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1510	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1511
[089b39e1]	1512	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1513	// permissive allows for a better error message from forCtrl.
[f1aeede]	1514	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1515	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1516	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1517	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1518
[d78c238]	1519	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1520	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1521	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1522	{
[4fee301]	1523	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1524	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1525	}
[52be5948]	1526	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1527	{
[4fee301]	1528	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1529	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1530	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1531	}
[65ef0cd]	1532	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1533	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1534
	1535	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1536	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1537	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1538	{
[4fee301]	1539	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1540	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1541	}
[52be5948]	1542	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1543	{
[4fee301]	1544	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1545	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1546	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1547	}
	1548	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1549	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1550	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1551	{
[4fee301]	1552	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1553	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1554	}
[52be5948]	1555	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1556	{
[4fee301]	1557	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1558	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1559	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1560	}
[dbedd71]	1561	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1562	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1563
	1564	\| declaration comma_expression // CFA
[bb7422a]	1565	{ $$ = 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	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1623	}
[9fd9d015]	1624	;
[98337569]	1625
[a8ced63]	1626	enum_key:
	1627	type_name
[6d2b3dc]	1628	{ typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1629	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false ); }
[a8ced63]	1630	\| ENUM identifier
[6d2b3dc]	1631	{ typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1632	$$ = DeclarationNode::newEnum( $2, nullptr, false, false ); }
[a8ced63]	1633	\| ENUM type_name
[6d2b3dc]	1634	{ typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1635	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false ); }
[a8ced63]	1636	;
	1637
[55ba259e]	1638	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1639	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1640	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1641	downupdowneq:
[01afd8d]	1642	ErangeUp
	1643	{ $$ = OperKinds::LThan; }
	1644	\| ErangeDown
[d78c238]	1645	{ $$ = OperKinds::GThan; }
	1646	\| ErangeUpEq
	1647	{ $$ = OperKinds::LEThan; }
	1648	\| ErangeDownEq
	1649	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1650	;
[51b73452]	1651
[d78c238]	1652	updown:
[01afd8d]	1653	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1654	{ $$ = OperKinds::LThan; }
	1655	\| ErangeUp
[cc22003]	1656	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1657	\| ErangeDown
	1658	{ $$ = OperKinds::GThan; }
[9fd9d015]	1659	;
[d78c238]	1660
	1661	updowneq:
	1662	updown
	1663	\| ErangeUpEq
	1664	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1665	\| ErangeDownEq
	1666	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1667	;
[cc22003]	1668
[51b73452]	1669	jump_statement:
[44a81853]	1670	GOTO identifier_or_type_name ';'
[bb7422a]	1671	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1672	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1673	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1674	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1675	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1676	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1677	\| fall_through_name ';' // CFA
[bb7422a]	1678	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1679	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1680	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1681	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1682	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1683	\| CONTINUE ';'
[de62360d]	1684	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1685	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1686	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1687	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1688	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1689	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1690	\| BREAK ';'
[de62360d]	1691	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1692	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1693	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1694	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1695	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1696	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1697	\| RETURN comma_expression_opt ';'
[bb7422a]	1698	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1699	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1700	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1701	\| SUSPEND ';'
[bb7422a]	1702	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1703	\| SUSPEND compound_statement
[bb7422a]	1704	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1705	\| SUSPEND COROUTINE ';'
[bb7422a]	1706	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1707	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1708	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1709	\| SUSPEND GENERATOR ';'
[bb7422a]	1710	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1711	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1712	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1713	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1714	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1715	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1716	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1717	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1718	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1719	;
[51b73452]	1720
[6a276a0]	1721	fall_through_name: // CFA
	1722	FALLTHRU
	1723	\| FALLTHROUGH
	1724	;
	1725
[8b47e50]	1726	with_statement:
[e78966e]	1727	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1728	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1729	;
	1730
[bf20567]	1731	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1732	mutex_statement:
[bf20567]	1733	MUTEX '(' argument_expression_list_opt ')' statement
	1734	{
[253d0b4]	1735	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1736	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1737	}
[b6b3c42]	1738	;
	1739
[51d6d6a]	1740	when_clause:
[6a276a0]	1741	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1742	;
	1743
[5b2edbc]	1744	when_clause_opt:
	1745	// empty
[135b431]	1746	{ $$ = nullptr; }
[51d6d6a]	1747	\| when_clause
[5b2edbc]	1748	;
	1749
[4a063df]	1750	cast_expression_list:
	1751	cast_expression
	1752	\| cast_expression_list ',' cast_expression
[a491a3c]	1753	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1754	;
	1755
	1756	timeout:
[9fd9d015]	1757	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1758	;
	1759
[9fd9d015]	1760	wor:
	1761	OROR
	1762	\| WOR
	1763
	1764	waitfor:
	1765	WAITFOR '(' cast_expression ')'
	1766	{ $$ = $3; }
	1767	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1768	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1769	;
	1770
[9fd9d015]	1771	wor_waitfor_clause:
[51d6d6a]	1772	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1773	// Called first: create header for WaitForStmt.
[bb7422a]	1774	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1775	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1776	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1777	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1778	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1779	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1780	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1781	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1782	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1783	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1784	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1785	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1786	;
	1787
	1788	waitfor_statement:
[9fd9d015]	1789	wor_waitfor_clause %prec THEN
	1790	{ $$ = new StatementNode( $1 ); }
	1791	;
	1792
	1793	wand:
	1794	ANDAND
	1795	\| WAND
	1796	;
	1797
	1798	waituntil:
[04c78215]	1799	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1800	{ $$ = $3; }
	1801	;
	1802
	1803	waituntil_clause:
	1804	when_clause_opt waituntil statement
[c86b08d]	1805	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1806	\| '(' wor_waituntil_clause ')'
[c86b08d]	1807	{ $$ = $2; }
[9fd9d015]	1808	;
	1809
	1810	wand_waituntil_clause:
	1811	waituntil_clause %prec THEN
[c86b08d]	1812	{ $$ = $1; }
[9fd9d015]	1813	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1814	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1815	;
	1816
	1817	wor_waituntil_clause:
	1818	wand_waituntil_clause
[c86b08d]	1819	{ $$ = $1; }
[70056ed]	1820	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1821	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1822	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1823	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1824	;
	1825
	1826	waituntil_statement:
	1827	wor_waituntil_clause %prec THEN
[f259682]	1828	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1829	;
	1830
[11ab0b4a]	1831	corun_statement:
	1832	CORUN statement
[eb779d5]	1833	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1834	;
	1835
	1836	cofor_statement:
	1837	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1838	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1839	;
	1840
[51b73452]	1841	exception_statement:
[bb7422a]	1842	TRY compound_statement handler_clause %prec THEN
	1843	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1844	\| TRY compound_statement finally_clause
[bb7422a]	1845	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1846	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1847	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1848	;
[51b73452]	1849
	1850	handler_clause:
[206ecae]	1851	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1852	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1853	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1854	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1855	;
	1856
	1857	handler_predicate_opt:
[7fdb94e1]	1858	// empty
[cbce272]	1859	{ $$ = nullptr; }
[6a276a0]	1860	\| ';' conditional_expression { $$ = $2; }
[307a732]	1861	;
	1862
	1863	handler_key:
[bb7422a]	1864	CATCH { $$ = ast::Terminate; }
	1865	\| RECOVER { $$ = ast::Terminate; }
	1866	\| CATCHRESUME { $$ = ast::Resume; }
	1867	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1868	;
[51b73452]	1869
	1870	finally_clause:
[6611177]	1871	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1872	;
[51b73452]	1873
	1874	exception_declaration:
[d0ffed1]	1875	// No SUE declaration in parameter list.
	1876	type_specifier_nobody
	1877	\| type_specifier_nobody declarator
[c0a33d2]	1878	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1879	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1880	{ $$ = $2->addType( $1 ); }
[033ff37]	1881	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1882	{ $$ = $1->addName( $2 ); }
[c0aa336]	1883	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1884	;
[51b73452]	1885
[2a8427c6]	1886	enable_disable_statement:
	1887	enable_disable_key identifier_list compound_statement
	1888	;
	1889
	1890	enable_disable_key:
	1891	ENABLE
	1892	\| DISABLE
	1893	;
	1894
[51b73452]	1895	asm_statement:
[ab57786]	1896	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1897	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1898	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1899	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1900	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1901	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1902	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1903	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1904	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1905	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1906	;
	1907
	1908	asm_volatile_opt: // GCC
	1909	// empty
	1910	{ $$ = false; }
	1911	\| VOLATILE
	1912	{ $$ = true; }
[4d51835]	1913	;
[b87a5ed]	1914
	1915	asm_operands_opt: // GCC
[4d51835]	1916	// empty
[58dd019]	1917	{ $$ = nullptr; } // use default argument
[4d51835]	1918	\| asm_operands_list
	1919	;
[b87a5ed]	1920
	1921	asm_operands_list: // GCC
[4d51835]	1922	asm_operand
	1923	\| asm_operands_list ',' asm_operand
[b93c544]	1924	{ $$ = $1->set_last( $3 ); }
[4d51835]	1925	;
[b87a5ed]	1926
	1927	asm_operand: // GCC
[ab57786]	1928	string_literal '(' constant_expression ')'
[32d6fdc]	1929	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1930	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1931	{
[32d6fdc]	1932	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1933	delete $2.str;
	1934	}
[7f5566b]	1935	;
	1936
[4e06c1e]	1937	asm_clobbers_list_opt: // GCC
[7f5566b]	1938	// empty
[58dd019]	1939	{ $$ = nullptr; } // use default argument
[ab57786]	1940	\| string_literal
[32d6fdc]	1941	{ $$ = $1; }
[ab57786]	1942	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1943	{ $$ = $1->set_last( $3 ); }
[4d51835]	1944	;
[b87a5ed]	1945
[7f5566b]	1946	label_list:
[033ff37]	1947	identifier
[ab57786]	1948	{
[bb7422a]	1949	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1950	delete $1; // allocated by lexer
	1951	}
[033ff37]	1952	\| label_list ',' identifier
[ab57786]	1953	{
[bb7422a]	1954	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1955	delete $3; // allocated by lexer
	1956	}
[4d51835]	1957	;
[51b73452]	1958
[e1d66c84]	1959	// **************************** DECLARATIONS *******************************
[51b73452]	1960
[b87a5ed]	1961	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1962	// empty
[58dd019]	1963	{ $$ = nullptr; }
[4d51835]	1964	\| declaration_list
	1965	;
[51b73452]	1966
	1967	declaration_list:
[4d51835]	1968	declaration
[647e2ea]	1969	\| declaration_list declaration
	1970	{ $$ = $1->set_last( $2 ); }
[4d51835]	1971	;
[51b73452]	1972
[407bde5]	1973	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1974	// empty
[58dd019]	1975	{ $$ = nullptr; }
[35718a9]	1976	\| KR_parameter_list
[4d51835]	1977	;
[51b73452]	1978
[35718a9]	1979	KR_parameter_list:
[c25f16b]	1980	c_declaration ';'
	1981	{ $$ = $1; }
	1982	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1983	{ $$ = $1->set_last( $2 ); }
[4d51835]	1984	;
[b87a5ed]	1985
[51b1202]	1986	local_label_declaration_opt: // GCC, local label
[4d51835]	1987	// empty
[51b1202]	1988	\| local_label_declaration_list
[4d51835]	1989	;
[b87a5ed]	1990
[51b1202]	1991	local_label_declaration_list: // GCC, local label
	1992	LABEL local_label_list ';'
	1993	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1994	;
[b87a5ed]	1995
[51b1202]	1996	local_label_list: // GCC, local label
[033ff37]	1997	identifier_or_type_name
	1998	\| local_label_list ',' identifier_or_type_name
[4d51835]	1999	;
[b87a5ed]	2000
[936e9f4]	2001	declaration: // old & new style declarations
[35718a9]	2002	c_declaration ';'
	2003	\| cfa_declaration ';' // CFA
[b9f6791f]	2004	\| static_assert ';' // C11
[4d51835]	2005	;
[b87a5ed]	2006
[b9be000b]	2007	static_assert:
[b9f6791f]	2008	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2009	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2010	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2011	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2012
[de62360d]	2013	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2014	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2015	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2016	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2017	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2018	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2019	//
[b87a5ed]	2020	// CFA C
	2021	// [10] int x; int x[10]; // array of 10 integers
	2022	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2023
[c0aa336]	2024	cfa_declaration: // CFA
[4cc585b]	2025	cfa_variable_declaration
	2026	\| cfa_typedef_declaration
	2027	\| cfa_function_declaration
	2028	\| type_declaring_list
[2501ae5]	2029	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2030	\| trait_specifier
[4d51835]	2031	;
[b87a5ed]	2032
[c0aa336]	2033	cfa_variable_declaration: // CFA
	2034	cfa_variable_specifier initializer_opt
[7fdb94e1]	2035	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2036	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2037	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2038	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2039	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2040	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2041	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2042	;
[b87a5ed]	2043
[c0aa336]	2044	cfa_variable_specifier: // CFA
[de62360d]	2045	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2046	// storage-class
[c0aa336]	2047	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2048	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2049	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2050	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2051	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2052	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2053
	2054	// [ int s, int t ]; // declare s and t
	2055	// [ int, int ] f();
	2056	// [] g( int );
	2057	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2058	// g( x + y );
	2059	\| cfa_function_return asm_name_opt
	2060	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2061	\| type_qualifier_list cfa_function_return asm_name_opt
	2062	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2063	;
[b87a5ed]	2064
[c0aa336]	2065	cfa_function_declaration: // CFA
	2066	cfa_function_specifier
	2067	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2068	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2069	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2070	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2071	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2072	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2073	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2074	{
[481115f]	2075	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2076	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2077	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2078	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2079	}
	2080	;
[b87a5ed]	2081
[c0aa336]	2082	cfa_function_specifier: // CFA
[647e2ea]	2083	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2084	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2085	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2086	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2087	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2088	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2089
[2871210]	2090	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2091	//
[647e2ea]	2092	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2093	// '[' ']' type_specifier
	2094	//
[2871210]	2095	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2096	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2097	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2098	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2099	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2100	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2101	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2102	;
[b87a5ed]	2103
[c0aa336]	2104	cfa_function_return: // CFA
[c0a33d2]	2105	'[' push cfa_parameter_list pop ']'
	2106	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2107	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2108	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2109	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2110	;
[b87a5ed]	2111
[c0aa336]	2112	cfa_typedef_declaration: // CFA
	2113	TYPEDEF cfa_variable_specifier
[4d51835]	2114	{
[71a422a]	2115	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2116	$$ = $2->addTypedef();
	2117	}
[c0aa336]	2118	\| TYPEDEF cfa_function_specifier
[4d51835]	2119	{
[71a422a]	2120	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2121	$$ = $2->addTypedef();
	2122	}
[647e2ea]	2123	\| cfa_typedef_declaration ',' identifier
[4d51835]	2124	{
[647e2ea]	2125	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2126	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2127	}
	2128	;
[b87a5ed]	2129
[de62360d]	2130	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2131	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2132
	2133	typedef_declaration:
[4d51835]	2134	TYPEDEF type_specifier declarator
	2135	{
[71a422a]	2136	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2137	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2138	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2139	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2140	}
[c25f16b]	2141	\| typedef_declaration ',' declarator
[4d51835]	2142	{
[c25f16b]	2143	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2144	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2145	}
[de62360d]	2146	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2147	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2148	\| type_specifier TYPEDEF declarator
[ac235a8]	2149	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2150	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2151	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2152	;
[b87a5ed]	2153
[721f17a]	2154	typedef_expression:
[25744d2]	2155	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2156	TYPEDEF identifier '=' assignment_expression
[4d51835]	2157	{
[ac235a8]	2158	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2159	}
[c25f16b]	2160	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2161	{
[ac235a8]	2162	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2163	}
	2164	;
[51b73452]	2165
[c0aa336]	2166	c_declaration:
[4cc585b]	2167	declaration_specifier declaring_list
[7fdb94e1]	2168	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2169	\| typedef_declaration
[25744d2]	2170	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2171	\| sue_declaration_specifier
[0bcd707]	2172	{
	2173	assert( $1->type );
[1a73dbb]	2174	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2175	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2176	}
	2177	// enums are never empty declarations because there must have at least one enumeration.
	2178	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2179	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2180	}
	2181	}
[4d51835]	2182	;
[51b73452]	2183
	2184	declaring_list:
[de62360d]	2185	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2186	// storage-class
[1f771fc]	2187	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2188	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2189	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2190	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2191
	2192	\| general_function_declarator asm_name_opt
	2193	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2194	\| general_function_declarator asm_name_opt '=' VOID
	2195	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2196
[4d51835]	2197	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2198	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2199	;
[b87a5ed]	2200
[1f771fc]	2201	general_function_declarator:
	2202	function_type_redeclarator
	2203	\| function_declarator
	2204	;
	2205
[b87a5ed]	2206	declaration_specifier: // type specifier + storage class
[4d51835]	2207	basic_declaration_specifier
[84d58c5]	2208	\| type_declaration_specifier
[79a6b17]	2209	\| sue_declaration_specifier
[0442f93f]	2210	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2211	{
[253d0b4]	2212	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2213	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2214	$$ = nullptr;
	2215	}
	2216	;
	2217
	2218	invalid_types:
	2219	aggregate_key
	2220	\| basic_type_name
	2221	\| indirect_type
[4d51835]	2222	;
[b87a5ed]	2223
[d0ffed1]	2224	declaration_specifier_nobody: // type specifier + storage class - {...}
	2225	// Preclude SUE declarations in restricted scopes:
	2226	//
	2227	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2228	//
	2229	// because it is impossible to call f due to name equivalence.
	2230	basic_declaration_specifier
	2231	\| sue_declaration_specifier_nobody
[84d58c5]	2232	\| type_declaration_specifier
[d0ffed1]	2233	;
	2234
	2235	type_specifier: // type specifier
[4d51835]	2236	basic_type_specifier
	2237	\| sue_type_specifier
[84d58c5]	2238	\| type_type_specifier
[4d51835]	2239	;
[b87a5ed]	2240
[d0ffed1]	2241	type_specifier_nobody: // type specifier - {...}
	2242	// Preclude SUE declarations in restricted scopes:
	2243	//
	2244	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2245	//
	2246	// because it is impossible to call f due to name equivalence.
	2247	basic_type_specifier
	2248	\| sue_type_specifier_nobody
[84d58c5]	2249	\| type_type_specifier
[d0ffed1]	2250	;
	2251
[b87a5ed]	2252	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2253	// empty
[58dd019]	2254	{ $$ = nullptr; }
[4d51835]	2255	\| type_qualifier_list
	2256	;
[51b73452]	2257
	2258	type_qualifier_list:
[de62360d]	2259	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2260	//
[de62360d]	2261	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2262	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2263	// appeared only once.
[4d51835]	2264	type_qualifier
	2265	\| type_qualifier_list type_qualifier
	2266	{ $$ = $1->addQualifiers( $2 ); }
	2267	;
[51b73452]	2268
	2269	type_qualifier:
[4d51835]	2270	type_qualifier_name
[6cef439]	2271	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2272	\| attribute // trick handles most attribute locations
[4d51835]	2273	;
[51b73452]	2274
	2275	type_qualifier_name:
[4d51835]	2276	CONST
[6cef439]	2277	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2278	\| RESTRICT
[6cef439]	2279	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2280	\| VOLATILE
[6cef439]	2281	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2282	\| ATOMIC
[6cef439]	2283	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2284
[446740a]	2285	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2286	//
	2287	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2288	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2289	\| forall
[6cef439]	2290	{ $$ = build_forall( $1 ); }
[a16a7ec]	2291	;
	2292
	2293	forall:
[35718a9]	2294	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2295	{ $$ = $3; }
[4d51835]	2296	;
[51b73452]	2297
	2298	declaration_qualifier_list:
[4d51835]	2299	storage_class_list
[de62360d]	2300	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2301	{ $$ = $1->addQualifiers( $2 ); }
	2302	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2303	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2304	;
[51b73452]	2305
	2306	storage_class_list:
[de62360d]	2307	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2308	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2309	//
[de62360d]	2310	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2311	// specifiers in a declaration.
[4d51835]	2312	storage_class
	2313	\| storage_class_list storage_class
	2314	{ $$ = $1->addQualifiers( $2 ); }
	2315	;
[51b73452]	2316
	2317	storage_class:
[4d51835]	2318	EXTERN
[36e6f10]	2319	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2320	\| STATIC
[36e6f10]	2321	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2322	\| AUTO
[36e6f10]	2323	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2324	\| REGISTER
[36e6f10]	2325	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2326	\| THREADLOCALGCC // GCC
[36e6f10]	2327	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2328	\| THREADLOCALC11 // C11
[36e6f10]	2329	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2330	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2331	\| INLINE // C99
[36e6f10]	2332	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2333	\| FORTRAN // C99
[36e6f10]	2334	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2335	\| NORETURN // C11
[36e6f10]	2336	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2337	;
[51b73452]	2338
	2339	basic_type_name:
[6cef439]	2340	basic_type_name_type
	2341	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2342	;
	2343
	2344	// Just an intermediate value for conversion.
	2345	basic_type_name_type:
[201aeb9]	2346	VOID
[e048ece]	2347	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2348	\| BOOL // C99
[e048ece]	2349	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2350	\| CHAR
[e048ece]	2351	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2352	\| INT
[e048ece]	2353	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2354	\| INT128
[e048ece]	2355	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2356	\| UINT128
[e048ece]	2357	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2358	\| FLOAT
[e048ece]	2359	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2360	\| DOUBLE
[e048ece]	2361	{ $$ = build_basic_type( TypeData::Double ); }
[e15853c]	2362	\| uuFLOAT80
[e048ece]	2363	{ $$ = build_basic_type( TypeData::uuFloat80 ); }
[e15853c]	2364	\| uuFLOAT128
[e048ece]	2365	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[e15853c]	2366	\| uFLOAT16
[e048ece]	2367	{ $$ = build_basic_type( TypeData::uFloat16 ); }
[e15853c]	2368	\| uFLOAT32
[e048ece]	2369	{ $$ = build_basic_type( TypeData::uFloat32 ); }
[e15853c]	2370	\| uFLOAT32X
[e048ece]	2371	{ $$ = build_basic_type( TypeData::uFloat32x ); }
[e15853c]	2372	\| uFLOAT64
[e048ece]	2373	{ $$ = build_basic_type( TypeData::uFloat64 ); }
[e15853c]	2374	\| uFLOAT64X
[e048ece]	2375	{ $$ = build_basic_type( TypeData::uFloat64x ); }
[e15853c]	2376	\| uFLOAT128
[e048ece]	2377	{ $$ = build_basic_type( TypeData::uFloat128 ); }
[15f769c]	2378	\| DECIMAL32
	2379	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2380	\| DECIMAL64
	2381	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2382	\| DECIMAL128
	2383	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2384	\| COMPLEX // C99
[e048ece]	2385	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2386	\| IMAGINARY // C99
[e048ece]	2387	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2388	\| SIGNED
[e048ece]	2389	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2390	\| UNSIGNED
[e048ece]	2391	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2392	\| SHORT
[e048ece]	2393	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2394	\| LONG
[e048ece]	2395	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2396	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2397	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2398	\| AUTO_TYPE
[e048ece]	2399	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2400	\| vtable
	2401	;
	2402
	2403	vtable_opt:
	2404	// empty
	2405	{ $$ = nullptr; }
[9380add]	2406	\| vtable
[1f652a7]	2407	;
	2408
	2409	vtable:
[8f6f3729]	2410	VTABLE '(' type_name ')' default_opt
[6cef439]	2411	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2412	;
	2413
	2414	default_opt:
	2415	// empty
	2416	{ $$ = nullptr; }
	2417	\| DEFAULT
	2418	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2419	;
[51b73452]	2420
	2421	basic_declaration_specifier:
[4d51835]	2422	// A semantic check is necessary for conflicting storage classes.
	2423	basic_type_specifier
	2424	\| declaration_qualifier_list basic_type_specifier
	2425	{ $$ = $2->addQualifiers( $1 ); }
	2426	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2427	{ $$ = $1->addQualifiers( $2 ); }
	2428	\| basic_declaration_specifier storage_class type_qualifier_list
	2429	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2430	\| basic_declaration_specifier storage_class basic_type_specifier
	2431	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2432	;
[51b73452]	2433
	2434	basic_type_specifier:
[84d58c5]	2435	direct_type
[f38e7d7]	2436	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2437	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2438	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2439	;
[51b73452]	2440
[84d58c5]	2441	direct_type:
[4d51835]	2442	basic_type_name
	2443	\| type_qualifier_list basic_type_name
	2444	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2445	\| direct_type type_qualifier
[4d51835]	2446	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2447	\| direct_type basic_type_name
[4d51835]	2448	{ $$ = $1->addType( $2 ); }
	2449	;
[51b73452]	2450
[84d58c5]	2451	indirect_type:
[b6ad601]	2452	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2453	{ $$ = $3; }
[b6ad601]	2454	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2455	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2456	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2457	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2458	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2459	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2460	\| ZERO_T // CFA
[e048ece]	2461	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2462	\| ONE_T // CFA
[e048ece]	2463	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2464	;
[51b73452]	2465
[d0ffed1]	2466	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2467	sue_type_specifier
	2468	\| declaration_qualifier_list sue_type_specifier
	2469	{ $$ = $2->addQualifiers( $1 ); }
	2470	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2471	{ $$ = $1->addQualifiers( $2 ); }
	2472	\| sue_declaration_specifier storage_class type_qualifier_list
	2473	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2474	;
[51b73452]	2475
[d0ffed1]	2476	sue_type_specifier: // struct, union, enum + type specifier
	2477	elaborated_type
[fdca7c6]	2478	\| type_qualifier_list
	2479	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2480	elaborated_type
	2481	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2482	\| sue_type_specifier type_qualifier
[284da8c]	2483	{
	2484	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2485	$$ = $1->addQualifiers( $2 );
	2486	}
[4d51835]	2487	;
[51b73452]	2488
[d0ffed1]	2489	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2490	sue_type_specifier_nobody
	2491	\| declaration_qualifier_list sue_type_specifier_nobody
	2492	{ $$ = $2->addQualifiers( $1 ); }
	2493	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2494	{ $$ = $1->addQualifiers( $2 ); }
	2495	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2496	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2497	;
	2498
	2499	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2500	elaborated_type_nobody
	2501	\| type_qualifier_list elaborated_type_nobody
	2502	{ $$ = $2->addQualifiers( $1 ); }
	2503	\| sue_type_specifier_nobody type_qualifier
	2504	{ $$ = $1->addQualifiers( $2 ); }
	2505	;
	2506
[84d58c5]	2507	type_declaration_specifier:
	2508	type_type_specifier
	2509	\| declaration_qualifier_list type_type_specifier
[4d51835]	2510	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2511	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2512	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2513	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2514	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2515	;
[b87a5ed]	2516
[84d58c5]	2517	type_type_specifier: // typedef types
	2518	type_name
[6cef439]	2519	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2520	\| type_qualifier_list type_name
[6cef439]	2521	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2522	\| type_type_specifier type_qualifier
	2523	{ $$ = $1->addQualifiers( $2 ); }
	2524	;
	2525
	2526	type_name:
[4d51835]	2527	TYPEDEFname
[6cef439]	2528	{ $$ = build_typedef( $1 ); }
[84d58c5]	2529	\| '.' TYPEDEFname
[6cef439]	2530	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2531	\| type_name '.' TYPEDEFname
[6cef439]	2532	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2533	\| typegen_name
	2534	\| '.' typegen_name
[6cef439]	2535	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2536	\| type_name '.' typegen_name
[6cef439]	2537	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2538	;
	2539
	2540	typegen_name: // CFA
[65d6de4]	2541	TYPEGENname
[6cef439]	2542	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2543	\| TYPEGENname '(' ')'
[6cef439]	2544	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2545	\| TYPEGENname '(' type_list ')'
[6cef439]	2546	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2547	;
[51b73452]	2548
[d0ffed1]	2549	elaborated_type: // struct, union, enum
[c0aa336]	2550	aggregate_type
	2551	\| enum_type
[4d51835]	2552	;
[51b73452]	2553
[d0ffed1]	2554	elaborated_type_nobody: // struct, union, enum - {...}
	2555	aggregate_type_nobody
	2556	\| enum_type_nobody
	2557	;
	2558
[7e13b11]	2559	// ************************ AGGREGATE *****************************
	2560
[d0ffed1]	2561	aggregate_type: // struct, union
[fc20514]	2562	aggregate_key attribute_list_opt
	2563	{ forall = false; } // reset
	2564	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2565	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2566	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2567	{
[71a422a]	2568	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2569	forall = false; // reset
	2570	}
[284da8c]	2571	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2572	{
	2573	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2574	}
[f9c3100]	2575	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2576	{
[71a422a]	2577	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2578	forall = false; // reset
	2579	}
[284da8c]	2580	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2581	{
[6cef439]	2582	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2583	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2584	}
	2585	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2586	{
[71a422a]	2587	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2588	forall = false; // reset
	2589	}
	2590	'{' field_declaration_list_opt '}' type_parameters_opt
	2591	{
[6cef439]	2592	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2593	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2594	}
[d0ffed1]	2595	\| aggregate_type_nobody
	2596	;
	2597
[284da8c]	2598	type_parameters_opt:
	2599	// empty
	2600	{ $$ = nullptr; } %prec '}'
	2601	\| '(' type_list ')'
	2602	{ $$ = $2; }
	2603	;
	2604
[d0ffed1]	2605	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2606	aggregate_key attribute_list_opt identifier
[84d58c5]	2607	{
[71a422a]	2608	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2609	forall = false; // reset
[84d58c5]	2610	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2611	}
[73f04fd]	2612	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2613	{
[fc20514]	2614	forall = false; // reset
[65d6de4]	2615	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2616	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2617	// delete newFromTypeGen.
[6cef439]	2618	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2619	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2620	} else {
[6cef439]	2621	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2622	$3->symbolic.name = nullptr; // copied to $$
	2623	$3->symbolic.actuals = nullptr;
[9fa61f5]	2624	delete $3;
	2625	}
[65d6de4]	2626	}
[4d51835]	2627	;
[51b73452]	2628
	2629	aggregate_key:
[e307e12]	2630	aggregate_data
	2631	\| aggregate_control
	2632	;
	2633
	2634	aggregate_data:
[1f652a7]	2635	STRUCT vtable_opt
[bb7422a]	2636	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2637	\| UNION
[bb7422a]	2638	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2639	\| EXCEPTION // CFA
[bb7422a]	2640	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2641	;
	2642
	2643	aggregate_control: // CFA
[cbbd8fd7]	2644	MONITOR
[bb7422a]	2645	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2646	\| MUTEX STRUCT
[bb7422a]	2647	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2648	\| GENERATOR
[bb7422a]	2649	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2650	\| MUTEX GENERATOR
[bb7422a]	2651	{
	2652	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2653	$$ = ast::AggregateDecl::NoAggregate;
	2654	}
[d3bc0ad]	2655	\| COROUTINE
[bb7422a]	2656	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2657	\| MUTEX COROUTINE
[bb7422a]	2658	{
	2659	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2660	$$ = ast::AggregateDecl::NoAggregate;
	2661	}
[d3bc0ad]	2662	\| THREAD
[bb7422a]	2663	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2664	\| MUTEX THREAD
[bb7422a]	2665	{
	2666	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2667	$$ = ast::AggregateDecl::NoAggregate;
	2668	}
[4d51835]	2669	;
[51b73452]	2670
[7fdb94e1]	2671	field_declaration_list_opt:
[5d125e4]	2672	// empty
[58dd019]	2673	{ $$ = nullptr; }
[7fdb94e1]	2674	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2675	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2676	;
[51b73452]	2677
	2678	field_declaration:
[679e644]	2679	type_specifier field_declaring_list_opt ';'
[d8454b9]	2680	{
	2681	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2682	$$ = fieldDecl( $1, $2 );
	2683	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2684	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2685	// printf( "\tattr %s\n", attr->name.c_str() );
	2686	// } // for
	2687	}
[0442f93f]	2688	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2689	{
[253d0b4]	2690	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2691	$$ = nullptr;
	2692	}
[679e644]	2693	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2694	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2695	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2696	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2697	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2698	{
[dea36ee]	2699	if ( ! $3 ) { // field declarator ?
	2700	$3 = DeclarationNode::newName( nullptr );
	2701	} // if
[679a260]	2702	$3->inLine = true;
[679e644]	2703	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2704	distInl( $3 );
[8f91c9ae]	2705	}
[e307e12]	2706	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2707	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2708	\| typedef_declaration ';' // CFA
	2709	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2710	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2711	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2712	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2713	{ $$ = $2; } // mark all fields in list
[46fa473]	2714	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2715	\| static_assert ';' // C11
[4d51835]	2716	;
[b87a5ed]	2717
[679e644]	2718	field_declaring_list_opt:
	2719	// empty
	2720	{ $$ = nullptr; }
[12f1156]	2721	\| field_declarator
	2722	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2723	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2724	;
[51b73452]	2725
[679e644]	2726	field_declarator:
[e07caa2]	2727	bit_subrange_size // C special case, no field name
[4d51835]	2728	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2729	\| variable_declarator bit_subrange_size_opt
[679e644]	2730	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2731	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2732	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2733	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2734	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2735	\| function_type_redeclarator bit_subrange_size_opt
	2736	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2737	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2738	;
	2739
[e07caa2]	2740	field_abstract_list_opt:
	2741	// empty
[dea36ee]	2742	{ $$ = nullptr; }
[e07caa2]	2743	\| field_abstract
	2744	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2745	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2746	;
	2747
[e07caa2]	2748	field_abstract:
[f7e4db27]	2749	// no bit fields
[e07caa2]	2750	variable_abstract_declarator
[679e644]	2751	;
	2752
	2753	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2754	// bit-fields are handled by C declarations
[033ff37]	2755	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2756	{ $$ = $1->addName( $2 ); }
[033ff37]	2757	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2758	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2759	;
	2760
	2761	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2762	// bit-fields are handled by C declarations
[679e644]	2763	cfa_abstract_declarator_tuple
	2764	\| cfa_field_abstract_list ','
[dc3fbe5]	2765	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2766	;
[51b73452]	2767
	2768	bit_subrange_size_opt:
[4d51835]	2769	// empty
[58dd019]	2770	{ $$ = nullptr; }
[4d51835]	2771	\| bit_subrange_size
	2772	;
[51b73452]	2773
	2774	bit_subrange_size:
[c786e1d]	2775	':' assignment_expression
[4d51835]	2776	{ $$ = $2; }
	2777	;
[51b73452]	2778
[7e13b11]	2779	// ************************ ENUMERATION *****************************
[647e2ea]	2780
[9e7236f4]	2781	enum_type:
[30aab55]	2782	// anonymous, no type name
	2783	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2784	{
	2785	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2786	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2787	} // if
	2788	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2789	}
[42422fb]	2790	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2791	{
[42422fb]	2792	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2793	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2794	}
[42422fb]	2795	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2796	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2797	} // if
	2798	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2799	}
[30aab55]	2800
[42422fb]	2801	// named type
[30aab55]	2802	\| ENUM attribute_list_opt identifier
	2803	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2804	hide_opt '{' enumerator_list comma_opt '}'
	2805	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2806	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2807	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2808	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2809	{
[42422fb]	2810	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2811	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2812	}
[42422fb]	2813	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2814	}
[c7f12a4]	2815	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2816	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2817	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2818	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2819
	2820	// forward declaration
[d0ffed1]	2821	\| enum_type_nobody
	2822	;
	2823
[42422fb]	2824	enumerator_type:
	2825	'(' ')' // pure enumeration
	2826	{ $$ = nullptr; }
	2827	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2828	{ $$ = $2; }
	2829	;
	2830
[c7f12a4]	2831	hide_opt:
	2832	// empty
[7cf8006]	2833	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2834	\| '!'
[7cf8006]	2835	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2836	;
	2837
[d0ffed1]	2838	enum_type_nobody: // enum - {...}
[f9c3100]	2839	ENUM attribute_list_opt identifier
[71a422a]	2840	{
	2841	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2842	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2843	}
[0bd46fd]	2844	\| ENUM attribute_list_opt type_name
[71a422a]	2845	{
[6cef439]	2846	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2847	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2848	}
[4d51835]	2849	;
[51b73452]	2850
	2851	enumerator_list:
[2ca7fc2]	2852	// empty
	2853	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2854	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2855	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2856	\| INLINE type_name
[d9bad51]	2857	{
	2858	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2859	$2->symbolic.name = nullptr;
	2860	delete $2;
	2861	}
[7cf8006]	2862	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2863	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2864	\| enumerator_list ',' INLINE type_name
	2865	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2866	;
[51b73452]	2867
[7cf8006]	2868	visible_hide_opt:
[c7f12a4]	2869	hide_opt
	2870	\| '^'
[7cf8006]	2871	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2872	;
	2873
[51b73452]	2874	enumerator_value_opt:
[4d51835]	2875	// empty
[58dd019]	2876	{ $$ = nullptr; }
[7991c7d]	2877	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2878	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2879	// \| simple_assignment_operator initializer
	2880	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2881	;
[51b73452]	2882
[7e13b11]	2883	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2884
	2885	parameter_list_ellipsis_opt:
	2886	// empty
	2887	{ $$ = nullptr; }
	2888	\| ELLIPSIS
	2889	{ $$ = nullptr; }
	2890	\| parameter_list
	2891	\| parameter_list ',' ELLIPSIS
	2892	{ $$ = $1->addVarArgs(); }
	2893	;
	2894
	2895	parameter_list: // abstract + real
	2896	parameter_declaration
	2897	\| abstract_parameter_declaration
	2898	\| parameter_list ',' parameter_declaration
	2899	{ $$ = $1->set_last( $3 ); }
	2900	\| parameter_list ',' abstract_parameter_declaration
	2901	{ $$ = $1->set_last( $3 ); }
	2902	;
	2903
	2904	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2905	// empty
[e048ece]	2906	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2907	\| ELLIPSIS
[58dd019]	2908	{ $$ = nullptr; }
[c0aa336]	2909	\| cfa_parameter_list
[647e2ea]	2910	\| cfa_abstract_parameter_list
	2911	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2912	{ $$ = $1->set_last( $3 ); }
	2913	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2914	{ $$ = $1->addVarArgs(); }
[647e2ea]	2915	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2916	{ $$ = $1->addVarArgs(); }
	2917	;
[b87a5ed]	2918
[c0aa336]	2919	cfa_parameter_list: // CFA
	2920	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2921	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2922	cfa_parameter_declaration
[647e2ea]	2923	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2924	{ $$ = $1->set_last( $3 ); }
	2925	\| cfa_parameter_list ',' cfa_parameter_declaration
	2926	{ $$ = $1->set_last( $3 ); }
	2927	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2928	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2929	;
[b87a5ed]	2930
[c0aa336]	2931	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2932	cfa_abstract_parameter_declaration
[647e2ea]	2933	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2934	{ $$ = $1->set_last( $3 ); }
[4d51835]	2935	;
[51b73452]	2936
[de62360d]	2937	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2938	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2939
[647e2ea]	2940	parameter_declaration:
	2941	// No SUE declaration in parameter list.
	2942	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2943	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2944	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2945	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2946	;
	2947
	2948	abstract_parameter_declaration:
	2949	declaration_specifier_nobody default_initializer_opt
	2950	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2951	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2952	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2953	;
	2954
[c0aa336]	2955	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2956	parameter_declaration
[5a51798]	2957	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2958	{ $$ = $1->addName( $2 ); }
[5a51798]	2959	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2960	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2961	{ $$ = $1->addName( $2 ); }
[5a51798]	2962	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2963	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2964	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2965	;
[b87a5ed]	2966
[c0aa336]	2967	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2968	abstract_parameter_declaration
[c0aa336]	2969	\| cfa_identifier_parameter_declarator_no_tuple
	2970	\| cfa_abstract_tuple
	2971	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2972	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2973	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2974	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2975	;
[51b73452]	2976
[c11e31c]	2977	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2978	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2979	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2980
[b87a5ed]	2981	identifier_list: // K&R-style parameter list => no types
[033ff37]	2982	identifier
[4d51835]	2983	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2984	\| identifier_list ',' identifier
[dc3fbe5]	2985	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	2986	;
[51b73452]	2987
[84d58c5]	2988	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2989	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	2990	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	2991	\| type_specifier abstract_declarator
[4d51835]	2992	{ $$ = $2->addType( $1 ); }
	2993	;
[b87a5ed]	2994
[84d58c5]	2995	type: // typeof, assertion
	2996	type_no_function
[c0aa336]	2997	\| cfa_abstract_function // CFA
[4d51835]	2998	;
[51b73452]	2999
	3000	initializer_opt:
[4d51835]	3001	// empty
[58dd019]	3002	{ $$ = nullptr; }
[f9c3100]	3003	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3004	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3005	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3006	;
[51b73452]	3007
	3008	initializer:
[de62360d]	3009	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3010	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3011	;
[51b73452]	3012
[7fdb94e1]	3013	initializer_list_opt:
[097e2b0]	3014	// empty
[58dd019]	3015	{ $$ = nullptr; }
[097e2b0]	3016	\| initializer
[4d51835]	3017	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3018	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3019	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3020	;
[b87a5ed]	3021
[de62360d]	3022	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3023	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3024	//
[b87a5ed]	3025	// int x[10] = { [1] = 3 };
[c11e31c]	3026	//
[de62360d]	3027	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3028	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3029	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3030	// shift/reduce conflicts
[51b73452]	3031
	3032	designation:
[4d51835]	3033	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3034	\| identifier_at ':' // GCC, field name
[bb7422a]	3035	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3036	;
[51b73452]	3037
[b87a5ed]	3038	designator_list: // C99
[4d51835]	3039	designator
[2871210]	3040	\| designator_list designator
[b93c544]	3041	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3042	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3043	;
[51b73452]	3044
	3045	designator:
[e16eb460]	3046	'.' identifier_at // C99, field name
[bb7422a]	3047	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3048	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3049	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3050	{ $$ = $3; }
[c0a33d2]	3051	\| '[' push subrange pop ']' // CFA, multiple array elements
	3052	{ $$ = $3; }
	3053	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3054	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3055	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3056	{ $$ = $4; }
[4d51835]	3057	;
[51b73452]	3058
[de62360d]	3059	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3060	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3061	//
	3062	// Overloading: function, data, and operator identifiers may be overloaded.
	3063	//
[3ca7ef3]	3064	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3065	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3066	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3067	//
[de62360d]	3068	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3069	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3070	//
	3071	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3072	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3073	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3074	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3075	// on type arguments of polymorphic functions.
[c11e31c]	3076
[b87a5ed]	3077	type_parameter_list: // CFA
[67cf18c]	3078	type_parameter
	3079	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3080	{ $$ = $1->set_last( $3 ); }
[4d51835]	3081	;
[b87a5ed]	3082
[84d58c5]	3083	type_initializer_opt: // CFA
	3084	// empty
	3085	{ $$ = nullptr; }
	3086	\| '=' type
	3087	{ $$ = $2; }
	3088	;
	3089
[b87a5ed]	3090	type_parameter: // CFA
[033ff37]	3091	type_class identifier_or_type_name
[408ab79]	3092	{
[71a422a]	3093	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3094	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3095	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3096	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3097	}
[5a51798]	3098	type_initializer_opt assertion_list_opt
[67cf18c]	3099	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3100	\| identifier_or_type_name new_type_class
[71a422a]	3101	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3102	type_initializer_opt assertion_list_opt
	3103	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3104	\| '[' identifier_or_type_name ']'
[b66d14a]	3105	{
[71a422a]	3106	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3107	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3108	}
[5a51798]	3109	// \| type_specifier identifier_parameter_declarator
[9997fee]	3110	\| assertion_list
[bb7422a]	3111	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3112	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3113	{
	3114	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3115	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3116	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3117	}
[4d51835]	3118	;
[b87a5ed]	3119
[5a51798]	3120	new_type_class: // CFA
	3121	// empty
[bb7422a]	3122	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3123	\| '&'
[bb7422a]	3124	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3125	\| '*'
[7e13b11]	3126	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3127	// \| '(' '*' ')' // Gregor made me do it
	3128	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3129	\| ELLIPSIS
[bb7422a]	3130	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3131	;
	3132
[b87a5ed]	3133	type_class: // CFA
[4040425]	3134	OTYPE
[bb7422a]	3135	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3136	\| DTYPE
[bb7422a]	3137	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3138	\| FTYPE
[bb7422a]	3139	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3140	\| TTYPE
[bb7422a]	3141	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3142	;
[b87a5ed]	3143
	3144	assertion_list_opt: // CFA
[4d51835]	3145	// empty
[58dd019]	3146	{ $$ = nullptr; }
[9997fee]	3147	\| assertion_list
	3148	;
	3149
	3150	assertion_list: // CFA
	3151	assertion
	3152	\| assertion_list assertion
[dc3fbe5]	3153	{ $$ = $1->set_last( $2 ); }
[4d51835]	3154	;
[b87a5ed]	3155
	3156	assertion: // CFA
[033ff37]	3157	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3158	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3159	\| '\|' '{' trait_declaration_list '}'
	3160	{ $$ = $3; }
[35718a9]	3161	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3162	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3163	;
[b87a5ed]	3164
[84d58c5]	3165	type_list: // CFA
	3166	type
[bb7422a]	3167	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3168	\| assignment_expression
[84d58c5]	3169	\| type_list ',' type
[b93c544]	3170	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3171	\| type_list ',' assignment_expression
[b93c544]	3172	{ $$ = $1->set_last( $3 ); }
[4d51835]	3173	;
[b87a5ed]	3174
	3175	type_declaring_list: // CFA
[4040425]	3176	OTYPE type_declarator
[4d51835]	3177	{ $$ = $2; }
[4040425]	3178	\| storage_class_list OTYPE type_declarator
[4d51835]	3179	{ $$ = $3->addQualifiers( $1 ); }
	3180	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3181	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3182	;
[b87a5ed]	3183
	3184	type_declarator: // CFA
[4d51835]	3185	type_declarator_name assertion_list_opt
	3186	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3187	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3188	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3189	;
[b87a5ed]	3190
	3191	type_declarator_name: // CFA
[033ff37]	3192	identifier_or_type_name
[4d51835]	3193	{
[71a422a]	3194	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3195	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3196	}
[033ff37]	3197	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3198	{
[71a422a]	3199	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3200	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3201	}
	3202	;
[b87a5ed]	3203
[4040425]	3204	trait_specifier: // CFA
[033ff37]	3205	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3206	{
[3d937e2]	3207	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3208	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3209	}
	3210	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3211	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3212	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3213	{
[3d937e2]	3214	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3215	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3216	}
[206ecae]	3217	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3218	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3219	;
[b87a5ed]	3220
[84d58c5]	3221	trait_declaration_list: // CFA
[4040425]	3222	trait_declaration
[206ecae]	3223	\| trait_declaration_list trait_declaration
	3224	{ $$ = $1->set_last( $2 ); }
[4d51835]	3225	;
[b87a5ed]	3226
[84d58c5]	3227	trait_declaration: // CFA
[13e8427]	3228	cfa_trait_declaring_list ';'
	3229	\| trait_declaring_list ';'
[4d51835]	3230	;
[b87a5ed]	3231
[c0aa336]	3232	cfa_trait_declaring_list: // CFA
	3233	cfa_variable_specifier
	3234	\| cfa_function_specifier
[206ecae]	3235	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3236	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3237	;
[b87a5ed]	3238
[4040425]	3239	trait_declaring_list: // CFA
[4d51835]	3240	type_specifier declarator
[7fdb94e1]	3241	{ $$ = $2->addType( $1 ); }
[206ecae]	3242	\| trait_declaring_list ',' declarator
	3243	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4d51835]	3244	;
[51b73452]	3245
[e1d66c84]	3246	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3247
	3248	translation_unit:
[3d56d15b]	3249	// empty, input file
[4d51835]	3250	\| external_definition_list
[12f1156]	3251	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3252	;
[51b73452]	3253
	3254	external_definition_list:
[35718a9]	3255	push external_definition pop
	3256	{ $$ = $2; }
[fc20514]	3257	\| external_definition_list push external_definition pop
[dc3fbe5]	3258	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3259	;
[51b73452]	3260
	3261	external_definition_list_opt:
[4d51835]	3262	// empty
[58dd019]	3263	{ $$ = nullptr; }
[3d56d15b]	3264	\| external_definition_list
	3265	;
	3266
	3267	up:
[fc20514]	3268	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3269	;
	3270
	3271	down:
	3272	{ typedefTable.down(); }
[4d51835]	3273	;
[51b73452]	3274
	3275	external_definition:
[2d019af]	3276	DIRECTIVE
[bb7422a]	3277	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3278	\| declaration
[1a73dbb]	3279	{
	3280	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3281	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3282	// disallowed at the moment.
[4eb3a7c5]	3283	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3284	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3285	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3286	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3287	}
	3288	}
	3289	}
[996c8ed]	3290	\| IDENTIFIER IDENTIFIER
	3291	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3292	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3293	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3294	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3295	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3296	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3297	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3298	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3299	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3300	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3301	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3302	\| external_function_definition
[ecae5860]	3303	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3304	{
	3305	distExt( $2 ); // mark all fields in list
	3306	$$ = $2;
	3307	}
[e994912]	3308	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3309	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3310	\| EXTERN STRINGliteral
	3311	{
	3312	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3313	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3314	}
[ae2f2ae]	3315	up external_definition down
[aac37fa]	3316	{
	3317	linkage = linkageStack.top();
	3318	linkageStack.pop();
	3319	$$ = $5;
	3320	}
[c0aa336]	3321	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3322	{
[3b8e52c]	3323	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3324	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3325	}
[3d56d15b]	3326	'{' up external_definition_list_opt down '}'
[4d51835]	3327	{
	3328	linkage = linkageStack.top();
	3329	linkageStack.pop();
[3d56d15b]	3330	$$ = $6;
[8e9cbb2]	3331	}
[7e13b11]	3332	// global distribution
[9997fee]	3333	\| type_qualifier_list
	3334	{
[55266c7]	3335	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3336	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3337	}
[fc20514]	3338	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3339	}
	3340	'{' up external_definition_list_opt down '}' // CFA, namespace
	3341	{
[4c3ee8d]	3342	distQual( $5, $1 );
[9fd9d015]	3343	forall = false;
[3d56d15b]	3344	$$ = $5;
[9997fee]	3345	}
	3346	\| declaration_qualifier_list
	3347	{
[55266c7]	3348	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3349	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3350	}
[fc20514]	3351	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3352	}
	3353	'{' up external_definition_list_opt down '}' // CFA, namespace
	3354	{
[4c3ee8d]	3355	distQual( $5, $1 );
[9fd9d015]	3356	forall = false;
[3d56d15b]	3357	$$ = $5;
[9997fee]	3358	}
	3359	\| declaration_qualifier_list type_qualifier_list
	3360	{
[55266c7]	3361	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3362	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3363	}
[b2ddaf3]	3364	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3365	}
[3d56d15b]	3366	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3367	{
[284da8c]	3368	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3369	forall = false;
[3d56d15b]	3370	$$ = $6;
[9997fee]	3371	}
[b9f6791f]	3372	\| ';' // empty declaration
	3373	{ $$ = nullptr; }
[4d51835]	3374	;
	3375
	3376	external_function_definition:
	3377	function_definition
[de62360d]	3378	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3379	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3380	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3381	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3382	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3383	\| function_declarator compound_statement
[c0a33d2]	3384	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3385	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3386	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3387	;
[51b73452]	3388
[8b47e50]	3389	with_clause_opt:
	3390	// empty
[9997fee]	3391	{ $$ = nullptr; forall = false; }
[e78966e]	3392	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3393	{
	3394	$$ = $3; forall = false;
	3395	if ( $5 ) {
[253d0b4]	3396	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3397	$$ = nullptr;
	3398	} // if
	3399	}
[8b47e50]	3400	;
	3401
[51b73452]	3402	function_definition:
[8b47e50]	3403	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3404	{
[481115f]	3405	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3406	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3407	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3408	$$ = $1;
[4d51835]	3409	}
[8b47e50]	3410	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3411	{
[c38ae92]	3412	rebindForall( $1, $2 );
[7fdb94e1]	3413	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3414	}
[1f771fc]	3415	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3416	{
	3417	rebindForall( $1, $2 );
[5fcba14]	3418	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3419	}
[a16a7ec]	3420	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3421	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3422	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3423	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3424	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3425	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3426	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3427	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3428	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3429
	3430	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3431	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3432	{
[c38ae92]	3433	rebindForall( $1, $2 );
[5fcba14]	3434	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3435	}
[a16a7ec]	3436	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3437	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3438	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3439	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3440	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3441	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3442	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3443	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3444	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3445	;
[51b73452]	3446
	3447	declarator:
[4d51835]	3448	variable_declarator
[c6b1105]	3449	\| variable_type_redeclarator
[4d51835]	3450	\| function_declarator
[1f771fc]	3451	\| function_type_redeclarator
[4d51835]	3452	;
[51b73452]	3453
	3454	subrange:
[4d51835]	3455	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3456	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3457	;
[b87a5ed]	3458
[7e13b11]	3459	// ************************** ASM ***************************
	3460
[b87a5ed]	3461	asm_name_opt: // GCC
[4d51835]	3462	// empty
[58dd019]	3463	{ $$ = nullptr; }
	3464	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3465	{
	3466	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3467	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3468	$$ = name->addQualifiers( $5 );
	3469	}
[4d51835]	3470	;
[b87a5ed]	3471
[7e13b11]	3472	// ************************** ATTRIBUTE ***************************
	3473
[b87a5ed]	3474	attribute_list_opt: // GCC
[4d51835]	3475	// empty
[58dd019]	3476	{ $$ = nullptr; }
[4d51835]	3477	\| attribute_list
	3478	;
[b87a5ed]	3479
	3480	attribute_list: // GCC
[4d51835]	3481	attribute
	3482	\| attribute_list attribute
[1db21619]	3483	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3484	;
[b87a5ed]	3485
	3486	attribute: // GCC
[44a81853]	3487	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3488	{ $$ = $4; }
[647e2ea]	3489	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3490	{ $$ = $3; }
	3491	\| ATTR '(' attribute_name_list ')' // CFA
	3492	{ $$ = $3; }
[4d51835]	3493	;
[b87a5ed]	3494
[44a81853]	3495	attribute_name_list: // GCC
	3496	attribute_name
	3497	\| attribute_name_list ',' attribute_name
[c0aa336]	3498	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3499	;
[b87a5ed]	3500
[44a81853]	3501	attribute_name: // GCC
[4d51835]	3502	// empty
[44a81853]	3503	{ $$ = nullptr; }
	3504	\| attr_name
	3505	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3506	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3507	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3508	;
[b87a5ed]	3509
[44a81853]	3510	attr_name: // GCC
[12f1156]	3511	identifier_or_type_name
[114014c]	3512	\| FALLTHROUGH
	3513	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3514	\| CONST
[9ff56e7]	3515	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3516	;
[51b73452]	3517
[c11e31c]	3518	// ============================================================================
[de62360d]	3519	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3520	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3521	// in:
[c11e31c]	3522	//
[b87a5ed]	3523	// int (*f())[10] { ... };
	3524	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3525	//
[de62360d]	3526	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3527	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3528	// ============================================================================
	3529
	3530	// ----------------------------------------------------------------------------
[de62360d]	3531	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3532	// to define a variable or function prototype, e.g.:
[c11e31c]	3533	//
[b87a5ed]	3534	// valid declaration invalid definition
	3535	// ----------------- ------------------
[4d51835]	3536	// int f; int f {}
	3537	// int f; int f {}
[b87a5ed]	3538	// int f[10]; int f[10] {}
[4d51835]	3539	// int (f)(int); int (f)(int) {}
[c11e31c]	3540	//
[de62360d]	3541	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3542	// variable_declarator and function_declarator.
[c11e31c]	3543	// ----------------------------------------------------------------------------
	3544
[de62360d]	3545	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3546	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3547
[5e25953]	3548	paren_identifier:
[e16eb460]	3549	identifier_at
[5e25953]	3550	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3551	\| '?' identifier
[daa4cc1]	3552	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3553	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3554	\| '(' paren_identifier ')' // redundant parenthesis
	3555	{ $$ = $2; }
	3556	;
	3557
[51b73452]	3558	variable_declarator:
[4d51835]	3559	paren_identifier attribute_list_opt
[1db21619]	3560	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3561	\| variable_ptr
	3562	\| variable_array attribute_list_opt
[1db21619]	3563	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3564	\| variable_function attribute_list_opt
[1db21619]	3565	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3566	;
[51b73452]	3567
	3568	variable_ptr:
[dd51906]	3569	ptrref_operator variable_declarator
[a5f9444]	3570	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3571	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3572	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3573	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3574	{ $$ = $2->addQualifiers( $4 ); }
	3575	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3576	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3577	;
[51b73452]	3578
	3579	variable_array:
[4d51835]	3580	paren_identifier array_dimension
	3581	{ $$ = $1->addArray( $2 ); }
	3582	\| '(' variable_ptr ')' array_dimension
	3583	{ $$ = $2->addArray( $4 ); }
[5e25953]	3584	\| '(' attribute_list variable_ptr ')' array_dimension
	3585	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3586	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3587	{ $$ = $2->addArray( $4 ); }
[5e25953]	3588	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3589	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3590	\| '(' variable_array ')' // redundant parenthesis
	3591	{ $$ = $2; }
[5e25953]	3592	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3593	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3594	;
[51b73452]	3595
	3596	variable_function:
[647e2ea]	3597	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3598	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3599	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3600	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3601	\| '(' variable_function ')' // redundant parenthesis
	3602	{ $$ = $2; }
[5e25953]	3603	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3604	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3605	;
[51b73452]	3606
[c6b1105]	3607	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3608	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3609	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3610
	3611	function_declarator:
[4d51835]	3612	function_no_ptr attribute_list_opt
[1db21619]	3613	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3614	\| function_ptr
	3615	\| function_array attribute_list_opt
[1db21619]	3616	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3617	;
[51b73452]	3618
	3619	function_no_ptr:
[647e2ea]	3620	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3621	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3622	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3623	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3624	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3625	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3626	\| '(' function_no_ptr ')' // redundant parenthesis
	3627	{ $$ = $2; }
[5e25953]	3628	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3629	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3630	;
[51b73452]	3631
	3632	function_ptr:
[dd51906]	3633	ptrref_operator function_declarator
[a5f9444]	3634	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3635	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3636	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3637	\| '(' function_ptr ')' attribute_list_opt
	3638	{ $$ = $2->addQualifiers( $4 ); }
	3639	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3640	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3641	;
[51b73452]	3642
	3643	function_array:
[4d51835]	3644	'(' function_ptr ')' array_dimension
	3645	{ $$ = $2->addArray( $4 ); }
[5e25953]	3646	\| '(' attribute_list function_ptr ')' array_dimension
	3647	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3648	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3649	{ $$ = $2->addArray( $4 ); }
[5e25953]	3650	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3651	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3652	\| '(' function_array ')' // redundant parenthesis
	3653	{ $$ = $2; }
[5e25953]	3654	\| '(' attribute_list function_array ')' // redundant parenthesis
	3655	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3656	;
[51b73452]	3657
[c0aa336]	3658	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3659	//
	3660	// f( a, b, c ) int a, *b, c[]; {}
	3661	//
	3662	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3663	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3664
[c0aa336]	3665	KR_function_declarator:
	3666	KR_function_no_ptr
	3667	\| KR_function_ptr
	3668	\| KR_function_array
[4d51835]	3669	;
[51b73452]	3670
[c0aa336]	3671	KR_function_no_ptr:
[4d51835]	3672	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3673	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3674	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3675	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3676	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3677	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3678	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3679	{ $$ = $2; }
[5e25953]	3680	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3681	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3682	;
[51b73452]	3683
[c0aa336]	3684	KR_function_ptr:
	3685	ptrref_operator KR_function_declarator
[a5f9444]	3686	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3687	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3688	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3689	\| '(' KR_function_ptr ')'
[4d51835]	3690	{ $$ = $2; }
[5e25953]	3691	\| '(' attribute_list KR_function_ptr ')'
	3692	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3693	;
[51b73452]	3694
[c0aa336]	3695	KR_function_array:
	3696	'(' KR_function_ptr ')' array_dimension
[4d51835]	3697	{ $$ = $2->addArray( $4 ); }
[5e25953]	3698	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3699	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3700	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3701	{ $$ = $2->addArray( $4 ); }
[5e25953]	3702	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3703	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3704	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3705	{ $$ = $2; }
[5e25953]	3706	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3707	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3708	;
[51b73452]	3709
[1f771fc]	3710	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3711	//
[b87a5ed]	3712	// typedef int foo;
	3713	// {
	3714	// int foo; // redefine typedef name in new scope
	3715	// }
[51b73452]	3716
[2871210]	3717	paren_type:
[f9c3100]	3718	typedef_name
[c4f68dc]	3719	{
[f9c3100]	3720	// hide type name in enclosing scope by variable name
[71a422a]	3721	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3722	}
[2871210]	3723	\| '(' paren_type ')'
[4d51835]	3724	{ $$ = $2; }
	3725	;
[51b73452]	3726
[5e25953]	3727	variable_type_redeclarator:
	3728	paren_type attribute_list_opt
	3729	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3730	\| variable_type_ptr
	3731	\| variable_type_array attribute_list_opt
[5e25953]	3732	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3733	\| variable_type_function attribute_list_opt
[5e25953]	3734	{ $$ = $1->addQualifiers( $2 ); }
	3735	;
	3736
[1f771fc]	3737	variable_type_ptr:
[c6b1105]	3738	ptrref_operator variable_type_redeclarator
[a5f9444]	3739	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3740	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3741	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3742	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3743	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3744	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3745	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3746	;
[51b73452]	3747
[1f771fc]	3748	variable_type_array:
[2871210]	3749	paren_type array_dimension
[4d51835]	3750	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3751	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3752	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3753	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3754	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3755	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3756	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3757	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3758	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3759	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3760	{ $$ = $2; }
[1f771fc]	3761	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3762	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3763	;
[51b73452]	3764
[1f771fc]	3765	variable_type_function:
[647e2ea]	3766	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3767	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3768	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3769	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3770	\| '(' variable_type_function ')' // redundant parenthesis
	3771	{ $$ = $2; }
	3772	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3773	{ $$ = $3->addQualifiers( $2 ); }
	3774	;
	3775
	3776	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3777	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3778	// arrays and functions.
	3779
	3780	function_type_redeclarator:
	3781	function_type_no_ptr attribute_list_opt
	3782	{ $$ = $1->addQualifiers( $2 ); }
	3783	\| function_type_ptr
	3784	\| function_type_array attribute_list_opt
	3785	{ $$ = $1->addQualifiers( $2 ); }
	3786	;
	3787
	3788	function_type_no_ptr:
[647e2ea]	3789	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3790	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3791	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3792	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3793	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3794	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3795	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3796	{ $$ = $2; }
[1f771fc]	3797	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3798	{ $$ = $3->addQualifiers( $2 ); }
	3799	;
	3800
	3801	function_type_ptr:
	3802	ptrref_operator function_type_redeclarator
	3803	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3804	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3805	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3806	\| '(' function_type_ptr ')' attribute_list_opt
	3807	{ $$ = $2->addQualifiers( $4 ); }
	3808	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3809	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3810	;
	3811
	3812	function_type_array:
	3813	'(' function_type_ptr ')' array_dimension
	3814	{ $$ = $2->addArray( $4 ); }
	3815	\| '(' attribute_list function_type_ptr ')' array_dimension
	3816	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3817	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3818	{ $$ = $2->addArray( $4 ); }
	3819	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3820	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3821	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3822	{ $$ = $2; }
[1f771fc]	3823	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3824	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3825	;
[51b73452]	3826
[c0aa336]	3827	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3828	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3829	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3830	// pointers to arrays and functions.
[51b73452]	3831
	3832	identifier_parameter_declarator:
[4d51835]	3833	paren_identifier attribute_list_opt
[1db21619]	3834	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3835	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3836	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3837	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3838	\| identifier_parameter_ptr
	3839	\| identifier_parameter_array attribute_list_opt
[1db21619]	3840	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3841	\| identifier_parameter_function attribute_list_opt
[1db21619]	3842	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3843	;
[51b73452]	3844
	3845	identifier_parameter_ptr:
[dd51906]	3846	ptrref_operator identifier_parameter_declarator
[a5f9444]	3847	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3848	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3849	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3850	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3851	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3852	;
[51b73452]	3853
	3854	identifier_parameter_array:
[4d51835]	3855	paren_identifier array_parameter_dimension
	3856	{ $$ = $1->addArray( $2 ); }
	3857	\| '(' identifier_parameter_ptr ')' array_dimension
	3858	{ $$ = $2->addArray( $4 ); }
	3859	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3860	{ $$ = $2->addArray( $4 ); }
	3861	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3862	{ $$ = $2; }
	3863	;
[51b73452]	3864
	3865	identifier_parameter_function:
[647e2ea]	3866	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3867	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3868	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3869	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3870	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3871	{ $$ = $2; }
	3872	;
[b87a5ed]	3873
[de62360d]	3874	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3875	// e.g.:
[c11e31c]	3876	//
[b87a5ed]	3877	// typedef int foo;
[114014c]	3878	// forall( otype T ) struct foo;
[b87a5ed]	3879	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3880	//
[c0aa336]	3881	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3882
[2871210]	3883	type_parameter_redeclarator:
[f9c3100]	3884	typedef_name attribute_list_opt
[1db21619]	3885	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3886	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3887	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3888	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3889	\| type_parameter_ptr
	3890	\| type_parameter_array attribute_list_opt
[1db21619]	3891	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3892	\| type_parameter_function attribute_list_opt
[1db21619]	3893	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3894	;
[51b73452]	3895
[f9c3100]	3896	typedef_name:
[4d51835]	3897	TYPEDEFname
[7fdb94e1]	3898	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3899	\| TYPEGENname
[7fdb94e1]	3900	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3901	;
[51b73452]	3902
[2871210]	3903	type_parameter_ptr:
[dd51906]	3904	ptrref_operator type_parameter_redeclarator
[a5f9444]	3905	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3906	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3907	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3908	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3909	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3910	;
[51b73452]	3911
[2871210]	3912	type_parameter_array:
[f9c3100]	3913	typedef_name array_parameter_dimension
[4d51835]	3914	{ $$ = $1->addArray( $2 ); }
[2871210]	3915	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3916	{ $$ = $2->addArray( $4 ); }
	3917	;
[51b73452]	3918
[2871210]	3919	type_parameter_function:
[7e13b11]	3920	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3921	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3922	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3923	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3924	;
[b87a5ed]	3925
[de62360d]	3926	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3927	// which the type applies, e.g.:
[c11e31c]	3928	//
[b87a5ed]	3929	// sizeof( int );
[c0aa336]	3930	// sizeof( int * );
[b87a5ed]	3931	// sizeof( int [10] );
[c0aa336]	3932	// sizeof( int (*)() );
	3933	// sizeof( int () );
[c11e31c]	3934	//
[de62360d]	3935	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3936	// and functions versus pointers to arrays and functions.
[51b73452]	3937
	3938	abstract_declarator:
[4d51835]	3939	abstract_ptr
	3940	\| abstract_array attribute_list_opt
[1db21619]	3941	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3942	\| abstract_function attribute_list_opt
[1db21619]	3943	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3944	;
[51b73452]	3945
	3946	abstract_ptr:
[dd51906]	3947	ptrref_operator
[a5f9444]	3948	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3949	\| ptrref_operator type_qualifier_list
[ce8c12f]	3950	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3951	\| ptrref_operator abstract_declarator
[a5f9444]	3952	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3953	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3954	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3955	\| '(' abstract_ptr ')' attribute_list_opt
	3956	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3957	;
[51b73452]	3958
	3959	abstract_array:
[4d51835]	3960	array_dimension
	3961	\| '(' abstract_ptr ')' array_dimension
	3962	{ $$ = $2->addArray( $4 ); }
	3963	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3964	{ $$ = $2->addArray( $4 ); }
	3965	\| '(' abstract_array ')' // redundant parenthesis
	3966	{ $$ = $2; }
	3967	;
[51b73452]	3968
	3969	abstract_function:
[7e13b11]	3970	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3971	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3972	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3973	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3974	\| '(' abstract_function ')' // redundant parenthesis
	3975	{ $$ = $2; }
	3976	;
[51b73452]	3977
	3978	array_dimension:
[4d51835]	3979	// Only the first dimension can be empty.
[2871210]	3980	'[' ']'
[a5f9444]	3981	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	3982	\| '[' ']' multi_array_dimension
[a5f9444]	3983	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	3984	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	3985	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	3986	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	3987	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	3988
	3989	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	3990	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	3991
[d41735a]	3992	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	3993	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	3994	\| multi_array_dimension
	3995	;
[51b73452]	3996
[647e2ea]	3997	// array_dimension_list:
	3998	// assignment_expression
	3999	// \| array_dimension_list ',' assignment_expression
	4000	// ;
	4001
[d41735a]	4002	array_type_list:
	4003	basic_type_name
[bb7422a]	4004	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4005	\| type_name
[bb7422a]	4006	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4007	\| assignment_expression upupeq assignment_expression
	4008	\| array_type_list ',' basic_type_name
[b93c544]	4009	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4010	\| array_type_list ',' type_name
[b93c544]	4011	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4012	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4013	;
	4014
	4015	upupeq:
	4016	'~'
	4017	{ $$ = OperKinds::LThan; }
	4018	\| ErangeUpEq
	4019	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4020	;
[d41735a]	4021
[51b73452]	4022	multi_array_dimension:
[c0a33d2]	4023	'[' push assignment_expression pop ']'
[a5f9444]	4024	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	4025	\| '[' push '*' pop ']' // C99
[4d51835]	4026	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	4027	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	4028	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	4029	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	4030	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4031	;
[51b73452]	4032
[c11e31c]	4033	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4034	// identifier to which the type applies, e.g.:
	4035	//
[c0aa336]	4036	// int f( int ); // not handled here
	4037	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4038	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4039	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4040	//
[de62360d]	4041	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4042	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4043	// parenthesis around a typedef name:
[c0aa336]	4044	//
	4045	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4046	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4047	// not as redundant parentheses around the identifier."
	4048	//
	4049	// For example:
	4050	//
	4051	// typedef float T;
	4052	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4053	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4054	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4055	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4056	//
	4057	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4058	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4059	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4060	// functions.
[51b73452]	4061
[59c7e3e]	4062	abstract_parameter_declarator_opt:
	4063	// empty
	4064	{ $$ = nullptr; }
	4065	\| abstract_parameter_declarator
	4066	;
	4067
[51b73452]	4068	abstract_parameter_declarator:
[4d51835]	4069	abstract_parameter_ptr
[b6b3c42]	4070	\| '&' MUTEX attribute_list_opt
[446740a]	4071	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4072	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4073	\| abstract_parameter_array attribute_list_opt
[1db21619]	4074	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4075	\| abstract_parameter_function attribute_list_opt
[1db21619]	4076	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4077	;
[51b73452]	4078
	4079	abstract_parameter_ptr:
[dd51906]	4080	ptrref_operator
[ce8c12f]	4081	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4082	\| ptrref_operator type_qualifier_list
[ce8c12f]	4083	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4084	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4085	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4086	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4087	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4088	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4089	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4090	;
[51b73452]	4091
	4092	abstract_parameter_array:
[4d51835]	4093	array_parameter_dimension
	4094	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4095	{ $$ = $2->addArray( $4 ); }
	4096	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4097	{ $$ = $2->addArray( $4 ); }
	4098	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4099	{ $$ = $2; }
	4100	;
[51b73452]	4101
	4102	abstract_parameter_function:
[7e13b11]	4103	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4104	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4105	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4106	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4107	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4108	{ $$ = $2; }
	4109	;
[51b73452]	4110
	4111	array_parameter_dimension:
[4d51835]	4112	// Only the first dimension can be empty or have qualifiers.
	4113	array_parameter_1st_dimension
	4114	\| array_parameter_1st_dimension multi_array_dimension
	4115	{ $$ = $1->addArray( $2 ); }
	4116	\| multi_array_dimension
	4117	;
[51b73452]	4118
[c11e31c]	4119	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4120	//
[de62360d]	4121	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4122	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4123
	4124	array_parameter_1st_dimension:
[2871210]	4125	'[' ']'
[a5f9444]	4126	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4127	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4128	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4129	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4130	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4131	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4132	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4133	\| '[' push type_qualifier_list assignment_expression pop ']'
	4134	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4135	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4136	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4137	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4138	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4139	;
[b87a5ed]	4140
[c0aa336]	4141	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4142	//
[71a422a]	4143	// struct S {
	4144	// int;
	4145	// int *;
	4146	// int [10];
	4147	// int (*)();
	4148	// };
[51b73452]	4149
	4150	variable_abstract_declarator:
[4d51835]	4151	variable_abstract_ptr
	4152	\| variable_abstract_array attribute_list_opt
[1db21619]	4153	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4154	\| variable_abstract_function attribute_list_opt
[1db21619]	4155	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4156	;
[51b73452]	4157
	4158	variable_abstract_ptr:
[dd51906]	4159	ptrref_operator
[a5f9444]	4160	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4161	\| ptrref_operator type_qualifier_list
[ce8c12f]	4162	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4163	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4164	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4165	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4166	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4167	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4168	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4169	;
[51b73452]	4170
	4171	variable_abstract_array:
[4d51835]	4172	array_dimension
	4173	\| '(' variable_abstract_ptr ')' array_dimension
	4174	{ $$ = $2->addArray( $4 ); }
	4175	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4176	{ $$ = $2->addArray( $4 ); }
	4177	\| '(' variable_abstract_array ')' // redundant parenthesis
	4178	{ $$ = $2; }
	4179	;
[51b73452]	4180
	4181	variable_abstract_function:
[647e2ea]	4182	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4183	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4184	\| '(' variable_abstract_function ')' // redundant parenthesis
	4185	{ $$ = $2; }
	4186	;
[b87a5ed]	4187
[de62360d]	4188	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4189	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4190
[c0aa336]	4191	cfa_identifier_parameter_declarator_tuple: // CFA
	4192	cfa_identifier_parameter_declarator_no_tuple
	4193	\| cfa_abstract_tuple
	4194	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4195	{ $$ = $2->addQualifiers( $1 ); }
	4196	;
[b87a5ed]	4197
[c0aa336]	4198	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4199	cfa_identifier_parameter_ptr
	4200	\| cfa_identifier_parameter_array
[4d51835]	4201	;
[b87a5ed]	4202
[c0aa336]	4203	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4204	// No SUE declaration in parameter list.
	4205	ptrref_operator type_specifier_nobody
[a5f9444]	4206	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4207	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4208	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4209	\| ptrref_operator cfa_abstract_function
[a5f9444]	4210	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4211	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4212	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4213	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4214	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4215	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4216	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4217	;
[b87a5ed]	4218
[c0aa336]	4219	cfa_identifier_parameter_array: // CFA
[de62360d]	4220	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4221	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4222	'[' ']' type_specifier_nobody
[a5f9444]	4223	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4224	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4225	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4226	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4227	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4228	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4229	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4230	\| multi_array_dimension type_specifier_nobody
[4d51835]	4231	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4232
[c0aa336]	4233	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4234	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4235	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4236	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4237	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4238	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4239	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4240	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4241	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4242	{ $$ = $2->addNewArray( $1 ); }
	4243	;
[51b73452]	4244
[c0aa336]	4245	cfa_array_parameter_1st_dimension:
[c0a33d2]	4246	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4247	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4248	\| '[' push type_qualifier_list assignment_expression pop ']'
	4249	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4250	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4251	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4252	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4253	// appear in this context.
[c0a33d2]	4254	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4255	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4256	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4257	;
[b87a5ed]	4258
[de62360d]	4259	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4260	// identifier to which the type applies, e.g.:
[c11e31c]	4261	//
[b87a5ed]	4262	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4263	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4264	//
	4265	// These rules need LR(3):
	4266	//
[c0aa336]	4267	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4268	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4269	//
	4270	// since a function return type can be syntactically identical to a tuple type:
	4271	//
[b87a5ed]	4272	// [int, int] t;
	4273	// [int, int] f( int );
[c11e31c]	4274	//
[2871210]	4275	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4276	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4277	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4278	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4279
[c0aa336]	4280	cfa_abstract_declarator_tuple: // CFA
	4281	cfa_abstract_tuple
	4282	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4283	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4284	\| cfa_abstract_declarator_no_tuple
[4d51835]	4285	;
[b87a5ed]	4286
[c0aa336]	4287	cfa_abstract_declarator_no_tuple: // CFA
	4288	cfa_abstract_ptr
	4289	\| cfa_abstract_array
[4d51835]	4290	;
[b87a5ed]	4291
[c0aa336]	4292	cfa_abstract_ptr: // CFA
[dd51906]	4293	ptrref_operator type_specifier
[a5f9444]	4294	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4295	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4296	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4297	\| ptrref_operator cfa_abstract_function
[a5f9444]	4298	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4299	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4300	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4301	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4302	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4303	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4304	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4305	;
[b87a5ed]	4306
[c0aa336]	4307	cfa_abstract_array: // CFA
[de62360d]	4308	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4309	// empty (void) function return type.
[2871210]	4310	'[' ']' type_specifier
[2298f728]	4311	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4312	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4313	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4314	\| multi_array_dimension type_specifier
	4315	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4316	\| '[' ']' cfa_abstract_ptr
[2298f728]	4317	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4318	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4319	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4320	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4321	{ $$ = $2->addNewArray( $1 ); }
	4322	;
[b87a5ed]	4323
[c0aa336]	4324	cfa_abstract_tuple: // CFA
[c0a33d2]	4325	'[' push cfa_abstract_parameter_list pop ']'
	4326	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4327	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4328	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4329	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4330	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4331	;
[b87a5ed]	4332
[c0aa336]	4333	cfa_abstract_function: // CFA
[647e2ea]	4334	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4335	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4336	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4337	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4338	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4339	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4340	;
[b87a5ed]	4341
[de62360d]	4342	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4343	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4344	//
[de62360d]	4345	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4346	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4347	//
	4348	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4349	// prototype-format parameter type declarators) is an obsolescent feature."
	4350	//
[de62360d]	4351	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4352	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4353
[e1d66c84]	4354	// ********************** MISCELLANEOUS ******************************
[51b73452]	4355
[b87a5ed]	4356	comma_opt: // redundant comma
[4d51835]	4357	// empty
	4358	\| ','
	4359	;
[51b73452]	4360
[5a51798]	4361	default_initializer_opt:
[4d51835]	4362	// empty
[58dd019]	4363	{ $$ = nullptr; }
[4d51835]	4364	\| '=' assignment_expression
	4365	{ $$ = $2; }
	4366	;
[51b73452]	4367
	4368	%%
[a1c9ddd]	4369
[c11e31c]	4370	// ----end of grammar----
[51b73452]	4371
[c11e31c]	4372	// Local Variables: //
[b87a5ed]	4373	// mode: c++ //
[de62360d]	4374	// tab-width: 4 //
[7e13b11]	4375	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4376	// End: //

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