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parser.yy@ 562ccf9

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Last change on this file since 562ccf9 was 45ee172, checked in by Andrew Beach <ajbeach@…>, 14 months ago
Corrected handling of va_args in the parser. It still does not get through the resolver and further updates may be required.
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
[4941716]	12	// Last Modified On : Tue Aug 13 11:25:16 2024
	13	// Update Count : 6740
[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 ')'
[45ee172]	794	{ $$ = new ExpressionNode( build_va_arg( yylloc, $3, ( $6 ? $6->addType( $5 ) : $5 ) ) ); }
[948fdef]	795	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	796	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	797	\| constant '`' identifier // CFA, postfix call
[bb7422a]	798	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	799	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	800	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	801
	802	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	803	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	804	// them. For example:
	805	//
	806	// struct S;
	807	// forall(T) struct T;
	808	// union U;
	809	// enum E { S, T, E };
	810	// struct Z { int S, T, Z, E, U; };
	811	// void fred () {
	812	// Z z;
	813	// z.S; // lexer returns S is TYPEDEFname
	814	// z.T; // lexer returns T is TYPEGENname
	815	// z.Z; // lexer returns Z is TYPEDEFname
	816	// z.U; // lexer returns U is TYPEDEFname
	817	// z.E; // lexer returns E is TYPEDEFname
	818	// }
[12f1156]	819	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	820	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	821
[df22130]	822	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	823	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	824	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	825	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	826	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	827	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	828	\| postfix_expression '.' aggregate_control
[bb7422a]	829	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	830	\| postfix_expression ARROW identifier
[bb7422a]	831	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	832	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	833	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	834	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	835	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	836	\| postfix_expression ICR
[bb7422a]	837	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	838	\| postfix_expression DECR
[bb7422a]	839	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	840	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	841	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	842	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	843	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	844	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	845	{
[9706554]	846	Token fn;
[ecb27a7]	847	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	848	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	849	}
[4d51835]	850	;
[51b73452]	851
[679e644]	852	field_name_list: // CFA, tuple field selector
[4d51835]	853	field
[b93c544]	854	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	855	;
[b87a5ed]	856
	857	field: // CFA, tuple field selector
[faddbd8]	858	field_name
[930f69e]	859	\| FLOATING_DECIMALconstant field
[bb7422a]	860	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	861	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	862	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	863	\| field_name '.' field
[bb7422a]	864	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	865	\| field_name '.' '[' field_name_list ']'
[bb7422a]	866	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	867	\| field_name ARROW field
[bb7422a]	868	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	869	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	870	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	871	;
[51b73452]	872
[faddbd8]	873	field_name:
[df22130]	874	INTEGERconstant fraction_constants_opt
[bb7422a]	875	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	876	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	877	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	878	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	879	{
[bb7422a]	880	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	881	}
[1b29996]	882	;
	883
[df22130]	884	fraction_constants_opt:
[1b29996]	885	// empty
[8780e30]	886	{ $$ = nullptr; }
[df22130]	887	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	888	{
[bb7422a]	889	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	890	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	891	}
[faddbd8]	892	;
	893
[51b73452]	894	unary_expression:
[4d51835]	895	postfix_expression
[c6b1105]	896	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	897	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	898	\| constant
[ab57786]	899	\| string_literal
[32d6fdc]	900	{ $$ = $1; }
[4d51835]	901	\| EXTENSION cast_expression // GCC
[e04ef3a]	902	{ $$ = $2->set_extension( true ); }
[c6b1105]	903	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	904	// { * X; } // dereference X
	905	// { * int X; } // CFA declaration of pointer to int
[51e076e]	906	\| ptrref_operator cast_expression // CFA
[9706554]	907	{
	908	switch ( $1 ) {
[bb7422a]	909	case OperKinds::AddressOf:
	910	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	911	break;
[bb7422a]	912	case OperKinds::PointTo:
	913	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	914	break;
[bb7422a]	915	case OperKinds::And:
	916	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	917	break;
[bb7422a]	918	default:
[9706554]	919	assert( false );
	920	}
	921	}
[4d51835]	922	\| unary_operator cast_expression
[bb7422a]	923	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	924	\| ICR unary_expression
[bb7422a]	925	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	926	\| DECR unary_expression
[bb7422a]	927	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	928	\| SIZEOF unary_expression
[bb7422a]	929	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[84d58c5]	930	\| SIZEOF '(' type_no_function ')'
[bb7422a]	931	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	932	\| ALIGNOF unary_expression // GCC, variable alignment
[bb7422a]	933	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a2e0687]	934	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	935	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	936
	937	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	938	// look ahead, so the cfa_abstract_function is factored out.
	939	\| SIZEOF '(' cfa_abstract_function ')'
	940	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	941	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	942	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	943
[033ff37]	944	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	945	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	946	\| TYPEID '(' type ')'
[1f652a7]	947	{
	948	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	949	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	950	}
[0c327ce]	951	\| COUNTOF unary_expression
[4941716]	952	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	953	\| COUNTOF '(' type_no_function ')'
	954	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	955	;
[51b73452]	956
[dd51906]	957	ptrref_operator:
[d9e2280]	958	'*' { $$ = OperKinds::PointTo; }
	959	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	960	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	961	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	962	;
	963
[51b73452]	964	unary_operator:
[d9e2280]	965	'+' { $$ = OperKinds::UnPlus; }
	966	\| '-' { $$ = OperKinds::UnMinus; }
	967	\| '!' { $$ = OperKinds::Neg; }
	968	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	969	;
[51b73452]	970
	971	cast_expression:
[4d51835]	972	unary_expression
[84d58c5]	973	\| '(' type_no_function ')' cast_expression
[bb7422a]	974	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	975	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	976	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	977	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	978	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	979	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	980	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	981	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	982	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	983	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	984	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	985	\| '(' COERCE type_no_function ')' cast_expression // CFA
	986	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	987	\| '(' qualifier_cast_list ')' cast_expression // CFA
	988	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	989	// \| '(' type_no_function ')' tuple
[bb7422a]	990	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	991	;
[51b73452]	992
[1528a2c]	993	qualifier_cast_list:
	994	cast_modifier type_qualifier_name
	995	\| cast_modifier MUTEX
	996	\| qualifier_cast_list cast_modifier type_qualifier_name
	997	\| qualifier_cast_list cast_modifier MUTEX
	998	;
	999
	1000	cast_modifier:
	1001	'-'
	1002	\| '+'
	1003	;
	1004
[994d080]	1005	exponential_expression:
[4d51835]	1006	cast_expression
[994d080]	1007	\| exponential_expression '\\' cast_expression
[bb7422a]	1008	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1009	;
	1010
	1011	multiplicative_expression:
	1012	exponential_expression
	1013	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1014	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1015	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1016	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1017	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1018	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1019	;
[51b73452]	1020
	1021	additive_expression:
[4d51835]	1022	multiplicative_expression
	1023	\| additive_expression '+' multiplicative_expression
[bb7422a]	1024	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1025	\| additive_expression '-' multiplicative_expression
[bb7422a]	1026	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1027	;
[51b73452]	1028
	1029	shift_expression:
[4d51835]	1030	additive_expression
	1031	\| shift_expression LS additive_expression
[bb7422a]	1032	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1033	\| shift_expression RS additive_expression
[bb7422a]	1034	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1035	;
[51b73452]	1036
	1037	relational_expression:
[4d51835]	1038	shift_expression
	1039	\| relational_expression '<' shift_expression
[bb7422a]	1040	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1041	\| relational_expression '>' shift_expression
[bb7422a]	1042	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1043	\| relational_expression LE shift_expression
[bb7422a]	1044	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1045	\| relational_expression GE shift_expression
[bb7422a]	1046	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1047	;
[51b73452]	1048
	1049	equality_expression:
[4d51835]	1050	relational_expression
	1051	\| equality_expression EQ relational_expression
[bb7422a]	1052	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1053	\| equality_expression NE relational_expression
[bb7422a]	1054	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1055	;
[51b73452]	1056
	1057	AND_expression:
[4d51835]	1058	equality_expression
	1059	\| AND_expression '&' equality_expression
[bb7422a]	1060	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1061	;
[51b73452]	1062
	1063	exclusive_OR_expression:
[4d51835]	1064	AND_expression
	1065	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1066	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1067	;
[51b73452]	1068
	1069	inclusive_OR_expression:
[4d51835]	1070	exclusive_OR_expression
	1071	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1072	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1073	;
[51b73452]	1074
	1075	logical_AND_expression:
[4d51835]	1076	inclusive_OR_expression
	1077	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1078	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1079	;
[51b73452]	1080
	1081	logical_OR_expression:
[4d51835]	1082	logical_AND_expression
	1083	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1084	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1085	;
[51b73452]	1086
	1087	conditional_expression:
[4d51835]	1088	logical_OR_expression
	1089	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1090	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1091	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1092	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1093	;
[51b73452]	1094
	1095	constant_expression:
[4d51835]	1096	conditional_expression
	1097	;
[51b73452]	1098
[c1b0b8f]	1099	argument_expression_list_opt:
	1100	// empty
	1101	{ $$ = nullptr; }
	1102	\| argument_expression_list
	1103	;
	1104
	1105	argument_expression_list:
	1106	argument_expression
	1107	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1108	\| argument_expression_list ',' argument_expression // no empty argument
	1109	{ $$ = $1->set_last( $3 ); }
	1110	;
	1111
	1112	argument_expression:
	1113	'?' // CFA, default parameter
[daa4cc1]	1114	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1115	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1116	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1117	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1118	{ $$ = $4; }
[c1b0b8f]	1119	\| assignment_expression
	1120	;
	1121
[51b73452]	1122	assignment_expression:
[4d51835]	1123	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1124	conditional_expression
	1125	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1126	{
[25744d2]	1127	// if ( $2 == OperKinds::AtAssn ) {
	1128	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1129	// } else {
[bb7422a]	1130	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1131	// } // if
[9867cdb]	1132	}
[7fdb94e1]	1133	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1134	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1135	;
[51b73452]	1136
	1137	assignment_expression_opt:
[4d51835]	1138	// empty
[d1625f8]	1139	{ $$ = nullptr; }
[4d51835]	1140	\| assignment_expression
	1141	;
[b87a5ed]	1142
[9706554]	1143	assignment_operator:
[f9c3100]	1144	simple_assignment_operator
	1145	\| compound_assignment_operator
	1146	;
	1147
	1148	simple_assignment_operator:
[d9e2280]	1149	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1150	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1151	;
	1152
	1153	compound_assignment_operator:
	1154	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1155	\| MULTassign { $$ = OperKinds::MulAssn; }
	1156	\| DIVassign { $$ = OperKinds::DivAssn; }
	1157	\| MODassign { $$ = OperKinds::ModAssn; }
	1158	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1159	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1160	\| LSassign { $$ = OperKinds::LSAssn; }
	1161	\| RSassign { $$ = OperKinds::RSAssn; }
	1162	\| ANDassign { $$ = OperKinds::AndAssn; }
	1163	\| ERassign { $$ = OperKinds::ERAssn; }
	1164	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1165	;
[9706554]	1166
[b87a5ed]	1167	tuple: // CFA, tuple
[de62360d]	1168	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1169	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1170	// '[' ']'
	1171	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1172	// \| '[' push assignment_expression pop ']'
[1b29996]	1173	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1174	'[' ',' tuple_expression_list ']'
[b93c544]	1175	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1176	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1177	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1178	;
[51b73452]	1179
	1180	tuple_expression_list:
[0a6d8204]	1181	assignment_expression
	1182	\| '@' // CFA
	1183	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1184	\| tuple_expression_list ',' assignment_expression
[b93c544]	1185	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1186	\| tuple_expression_list ',' '@'
	1187	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1188	;
[51b73452]	1189
	1190	comma_expression:
[4d51835]	1191	assignment_expression
[9706554]	1192	\| comma_expression ',' assignment_expression
[bb7422a]	1193	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1194	;
[51b73452]	1195
	1196	comma_expression_opt:
[4d51835]	1197	// empty
[58dd019]	1198	{ $$ = nullptr; }
[4d51835]	1199	\| comma_expression
	1200	;
[51b73452]	1201
[e1d66c84]	1202	// ************************ STATEMENTS *****************************
[51b73452]	1203
	1204	statement:
[4d51835]	1205	labeled_statement
	1206	\| compound_statement
[c0a33d2]	1207	\| expression_statement
[4d51835]	1208	\| selection_statement
	1209	\| iteration_statement
	1210	\| jump_statement
[8b47e50]	1211	\| with_statement
[b6b3c42]	1212	\| mutex_statement
[5b2edbc]	1213	\| waitfor_statement
[9fd9d015]	1214	\| waituntil_statement
[11ab0b4a]	1215	\| corun_statement
	1216	\| cofor_statement
[4d51835]	1217	\| exception_statement
[2a8427c6]	1218	\| enable_disable_statement
[fae90d5f]	1219	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1220	\| asm_statement
[61fc4f6]	1221	\| DIRECTIVE
[bb7422a]	1222	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1223	;
[51b73452]	1224
	1225	labeled_statement:
[033ff37]	1226	// labels cannot be identifiers 0 or 1
[44a81853]	1227	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1228	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1229	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1230	{
[b1f2007d]	1231	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1232	"where a declaration, case, or default is not a statement.\n"
	1233	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1234	$$ = nullptr;
	1235	}
[4d51835]	1236	;
[51b73452]	1237
	1238	compound_statement:
[4d51835]	1239	'{' '}'
[bb7422a]	1240	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1241	\| '{' push
[5e25953]	1242	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1243	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1244	pop '}'
[bb7422a]	1245	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1246	;
[b87a5ed]	1247
[9bd6105]	1248	statement_decl_list: // C99
	1249	statement_decl
[35718a9]	1250	\| statement_decl_list statement_decl
[6d01d89]	1251	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1252	;
[51b73452]	1253
[9bd6105]	1254	statement_decl:
[4d51835]	1255	declaration // CFA, new & old style declarations
[e82aa9df]	1256	{ $$ = new StatementNode( $1 ); }
[4d51835]	1257	\| EXTENSION declaration // GCC
[6d01d89]	1258	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1259	\| function_definition
[e82aa9df]	1260	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1261	\| EXTENSION function_definition // GCC
[6d01d89]	1262	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1263	\| statement
[4d51835]	1264	;
[51b73452]	1265
[9bd6105]	1266	statement_list_nodecl:
[4d51835]	1267	statement
[9bd6105]	1268	\| statement_list_nodecl statement
[6d01d89]	1269	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1270	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1271	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1272	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1273	;
[51b73452]	1274
	1275	expression_statement:
[4d51835]	1276	comma_expression_opt ';'
[bb7422a]	1277	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1278	;
[51b73452]	1279
[7e13b11]	1280	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1281	// parenthesis:
	1282	//
[446740a]	1283	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1284	//
[7e13b11]	1285	// switch O { }
	1286	//
	1287	// O{} => object-constructor for conditional, switch body ???
	1288	// O{} => O for conditional followed by switch body
	1289	//
	1290	// C++ has this problem, as it has the same constructor syntax.
	1291	//
	1292	// switch sizeof ( T ) { }
	1293	//
	1294	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1295	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1296	//
	1297	// Note the two grammar rules for sizeof (alignof)
	1298	//
	1299	// \| SIZEOF unary_expression
	1300	// \| SIZEOF '(' type_no_function ')'
	1301	//
	1302	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1303
[51b73452]	1304	selection_statement:
[647e2ea]	1305	IF '(' conditional_declaration ')' statement %prec THEN
	1306	// explicitly deal with the shift/reduce conflict on if/else
	1307	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1308	\| IF '(' conditional_declaration ')' statement ELSE statement
	1309	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1310	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1311	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1312	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1313	{
[bb7422a]	1314	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1315	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1316	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1317	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1318	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1319	// statement.
[b93c544]	1320	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1321	}
[0442f93f]	1322	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1323	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1324	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1325	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1326	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1327	{
[bb7422a]	1328	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1329	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1330	}
[0442f93f]	1331	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1332	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1333	;
[b87a5ed]	1334
[473d1da0]	1335	conditional_declaration:
[35718a9]	1336	comma_expression
[473d1da0]	1337	{ $$ = new CondCtl( nullptr, $1 ); }
[35718a9]	1338	\| c_declaration // no semi-colon
[473d1da0]	1339	{ $$ = new CondCtl( $1, nullptr ); }
[35718a9]	1340	\| cfa_declaration // no semi-colon
[473d1da0]	1341	{ $$ = new CondCtl( $1, nullptr ); }
[6d49ea3]	1342	\| declaration comma_expression // semi-colon separated
[473d1da0]	1343	{ $$ = new CondCtl( $1, $2 ); }
[9fd9d015]	1344	;
[936e9f4]	1345
[de62360d]	1346	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1347	// clause allows a list of values and subranges.
[b87a5ed]	1348
	1349	case_value: // CFA
[4d51835]	1350	constant_expression { $$ = $1; }
	1351	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1352	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1353	\| subrange // CFA, subrange
	1354	;
[b87a5ed]	1355
	1356	case_value_list: // CFA
[6611177]	1357	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1358	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1359	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1360	;
[b87a5ed]	1361
	1362	case_label: // CFA
[0442f93f]	1363	CASE error // invalid syntax rule
[253d0b4]	1364	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1365	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1366	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1367	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1368	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1369	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1370	\| DEFAULT error // invalid syntax rule
[253d0b4]	1371	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1372	;
[b87a5ed]	1373
	1374	case_label_list: // CFA
[4d51835]	1375	case_label
[6611177]	1376	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1377	;
[b87a5ed]	1378
	1379	case_clause: // CFA
[bb7422a]	1380	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1381	;
[b87a5ed]	1382
	1383	switch_clause_list_opt: // CFA
[4d51835]	1384	// empty
[58dd019]	1385	{ $$ = nullptr; }
[4d51835]	1386	\| switch_clause_list
	1387	;
[b87a5ed]	1388
	1389	switch_clause_list: // CFA
[9bd6105]	1390	case_label_list statement_list_nodecl
[bb7422a]	1391	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1392	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1393	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1394	;
[b87a5ed]	1395
[51b73452]	1396	iteration_statement:
[5695645]	1397	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[bb7422a]	1398	{ $$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1399	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1400	{
[bb7422a]	1401	$$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1402	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1403	}
[473d1da0]	1404	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1405	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1406	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1407	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1408	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1409	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1410	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1411	{
[bb7422a]	1412	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1413	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1414	}
	1415	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1416	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1417	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1418	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1419	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1420	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1421	\| FOR '(' ')' statement ELSE statement // CFA
	1422	{
[bb7422a]	1423	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1424	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1425	}
[efc8f3e]	1426	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1427	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1428	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1429	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1430	;
	1431
[6d01d89]	1432	for_control_expression_list:
	1433	for_control_expression
	1434	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1435	// ForCtrl + ForCtrl:
	1436	// init + init => multiple declaration statements that are hoisted
	1437	// condition + condition => (expression) && (expression)
	1438	// change + change => (expression), (expression)
	1439	{
	1440	$1->init->set_last( $3->init );
	1441	if ( $1->condition ) {
	1442	if ( $3->condition ) {
[bb7422a]	1443	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1444	} // if
	1445	} else $1->condition = $3->condition;
	1446	if ( $1->change ) {
	1447	if ( $3->change ) {
[bb7422a]	1448	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1449	} // if
	1450	} else $1->change = $3->change;
	1451	$$ = $1;
	1452	}
[6d01d89]	1453	;
	1454
[51b73452]	1455	for_control_expression:
[6d01d89]	1456	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1457	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1458	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1459	{
[253d0b4]	1460	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1461	}
[6d01d89]	1462	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1463	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1464
[aa122e9]	1465	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1466	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1467	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1468	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1469
[aa122e9]	1470	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1471	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1472	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1473	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1474
[aa122e9]	1475	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1476	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1477	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1478	{
[4fee301]	1479	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1480	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1481	}
[aa122e9]	1482	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1483	{
[4fee301]	1484	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1485	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1486	}
[aa122e9]	1487	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1488	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1489	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1490	{
[4fee301]	1491	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1492	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1493	}
[aa122e9]	1494	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1495	{
[4fee301]	1496	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1497	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1498	}
[65ef0cd]	1499	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1500	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1501	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1502	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1503	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1504	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1505	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1506	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1507	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1508	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1509
[089b39e1]	1510	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1511	// permissive allows for a better error message from forCtrl.
[f1aeede]	1512	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1513	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1514	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1515	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1516
[d78c238]	1517	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1518	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1519	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1520	{
[4fee301]	1521	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1522	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1523	}
[52be5948]	1524	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1525	{
[4fee301]	1526	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1527	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1528	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1529	}
[65ef0cd]	1530	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1531	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1532
	1533	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1534	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1535	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1536	{
[4fee301]	1537	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1538	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1539	}
[52be5948]	1540	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1541	{
[4fee301]	1542	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1543	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1544	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1545	}
	1546	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1547	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1548	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1549	{
[4fee301]	1550	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1551	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1552	}
[52be5948]	1553	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1554	{
[4fee301]	1555	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1556	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1557	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1558	}
[dbedd71]	1559	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1560	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1561
	1562	\| declaration comma_expression // CFA
[bb7422a]	1563	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1564	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1565	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1566
[d78c238]	1567	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1568	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1569	\| declaration '@' updowneq comma_expression // CFA
	1570	{
[4fee301]	1571	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1572	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1573	}
[52be5948]	1574	\| declaration comma_expression updowneq '@' // CFA
	1575	{
[4fee301]	1576	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1577	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1578	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1579	}
[d78c238]	1580
	1581	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1582	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1583	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1584	{
[4fee301]	1585	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1586	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1587	}
[52be5948]	1588	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1589	{
[4fee301]	1590	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1591	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1592	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1593	}
	1594	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1595	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1596	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1597	{
[4fee301]	1598	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1599	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1600	}
[52be5948]	1601	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1602	{
[4fee301]	1603	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1604	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1605	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1606	}
[65ef0cd]	1607	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[01afd8d]	1608	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1609
[6d2b3dc]	1610	\| comma_expression ';' type_type_specifier // CFA, enum type
[ca33b15]	1611	{
[6d2b3dc]	1612	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->clone()->buildType() ) ), $3 );
[ca33b15]	1613	}
[a8ced63]	1614	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1615	{
[55ba259e]	1616	if ( $3 == OperKinds::GThan ) {
	1617	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1618	$3 = OperKinds::GEThan;
	1619	} // if
[6d2b3dc]	1620	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1621	}
[9fd9d015]	1622	;
[98337569]	1623
[a8ced63]	1624	enum_key:
	1625	type_name
[4941716]	1626	{
	1627	typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1628	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false );
	1629	}
[a8ced63]	1630	\| ENUM identifier
[4941716]	1631	{
	1632	typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1633	$$ = DeclarationNode::newEnum( $2, nullptr, false, false );
	1634	}
[a8ced63]	1635	\| ENUM type_name
[4941716]	1636	{
	1637	typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1638	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false );
	1639	}
[a8ced63]	1640	;
	1641
[55ba259e]	1642	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1643	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1644	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1645	downupdowneq:
[01afd8d]	1646	ErangeUp
	1647	{ $$ = OperKinds::LThan; }
	1648	\| ErangeDown
[d78c238]	1649	{ $$ = OperKinds::GThan; }
	1650	\| ErangeUpEq
	1651	{ $$ = OperKinds::LEThan; }
	1652	\| ErangeDownEq
	1653	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1654	;
[51b73452]	1655
[d78c238]	1656	updown:
[01afd8d]	1657	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1658	{ $$ = OperKinds::LThan; }
	1659	\| ErangeUp
[cc22003]	1660	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1661	\| ErangeDown
	1662	{ $$ = OperKinds::GThan; }
[9fd9d015]	1663	;
[d78c238]	1664
	1665	updowneq:
	1666	updown
	1667	\| ErangeUpEq
	1668	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1669	\| ErangeDownEq
	1670	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1671	;
[cc22003]	1672
[51b73452]	1673	jump_statement:
[44a81853]	1674	GOTO identifier_or_type_name ';'
[bb7422a]	1675	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1676	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1677	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1678	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1679	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1680	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1681	\| fall_through_name ';' // CFA
[bb7422a]	1682	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1683	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1684	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1685	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1686	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1687	\| CONTINUE ';'
[de62360d]	1688	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1689	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1690	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1691	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1692	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1693	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1694	\| BREAK ';'
[de62360d]	1695	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1696	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1697	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1698	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1699	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1700	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1701	\| RETURN comma_expression_opt ';'
[bb7422a]	1702	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1703	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1704	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1705	\| SUSPEND ';'
[bb7422a]	1706	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1707	\| SUSPEND compound_statement
[bb7422a]	1708	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1709	\| SUSPEND COROUTINE ';'
[bb7422a]	1710	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1711	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1712	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1713	\| SUSPEND GENERATOR ';'
[bb7422a]	1714	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1715	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1716	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1717	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1718	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1719	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1720	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1721	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1722	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1723	;
[51b73452]	1724
[6a276a0]	1725	fall_through_name: // CFA
	1726	FALLTHRU
	1727	\| FALLTHROUGH
	1728	;
	1729
[8b47e50]	1730	with_statement:
[e78966e]	1731	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1732	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1733	;
	1734
[bf20567]	1735	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1736	mutex_statement:
[bf20567]	1737	MUTEX '(' argument_expression_list_opt ')' statement
	1738	{
[253d0b4]	1739	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1740	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1741	}
[b6b3c42]	1742	;
	1743
[51d6d6a]	1744	when_clause:
[6a276a0]	1745	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1746	;
	1747
[5b2edbc]	1748	when_clause_opt:
	1749	// empty
[135b431]	1750	{ $$ = nullptr; }
[51d6d6a]	1751	\| when_clause
[5b2edbc]	1752	;
	1753
[4a063df]	1754	cast_expression_list:
	1755	cast_expression
	1756	\| cast_expression_list ',' cast_expression
[a491a3c]	1757	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1758	;
	1759
	1760	timeout:
[9fd9d015]	1761	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1762	;
	1763
[9fd9d015]	1764	wor:
	1765	OROR
	1766	\| WOR
	1767
	1768	waitfor:
	1769	WAITFOR '(' cast_expression ')'
	1770	{ $$ = $3; }
	1771	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1772	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1773	;
	1774
[9fd9d015]	1775	wor_waitfor_clause:
[51d6d6a]	1776	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1777	// Called first: create header for WaitForStmt.
[bb7422a]	1778	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1779	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1780	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1781	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1782	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1783	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1784	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1785	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1786	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1787	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1788	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1789	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1790	;
	1791
	1792	waitfor_statement:
[9fd9d015]	1793	wor_waitfor_clause %prec THEN
	1794	{ $$ = new StatementNode( $1 ); }
	1795	;
	1796
	1797	wand:
	1798	ANDAND
	1799	\| WAND
	1800	;
	1801
	1802	waituntil:
[04c78215]	1803	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1804	{ $$ = $3; }
	1805	;
	1806
	1807	waituntil_clause:
	1808	when_clause_opt waituntil statement
[c86b08d]	1809	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1810	\| '(' wor_waituntil_clause ')'
[c86b08d]	1811	{ $$ = $2; }
[9fd9d015]	1812	;
	1813
	1814	wand_waituntil_clause:
	1815	waituntil_clause %prec THEN
[c86b08d]	1816	{ $$ = $1; }
[9fd9d015]	1817	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1818	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1819	;
	1820
	1821	wor_waituntil_clause:
	1822	wand_waituntil_clause
[c86b08d]	1823	{ $$ = $1; }
[70056ed]	1824	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1825	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1826	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1827	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1828	;
	1829
	1830	waituntil_statement:
	1831	wor_waituntil_clause %prec THEN
[f259682]	1832	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1833	;
	1834
[11ab0b4a]	1835	corun_statement:
	1836	CORUN statement
[eb779d5]	1837	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1838	;
	1839
	1840	cofor_statement:
	1841	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1842	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1843	;
	1844
[51b73452]	1845	exception_statement:
[bb7422a]	1846	TRY compound_statement handler_clause %prec THEN
	1847	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1848	\| TRY compound_statement finally_clause
[bb7422a]	1849	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1850	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1851	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1852	;
[51b73452]	1853
	1854	handler_clause:
[206ecae]	1855	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1856	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1857	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1858	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1859	;
	1860
	1861	handler_predicate_opt:
[7fdb94e1]	1862	// empty
[cbce272]	1863	{ $$ = nullptr; }
[6a276a0]	1864	\| ';' conditional_expression { $$ = $2; }
[307a732]	1865	;
	1866
	1867	handler_key:
[bb7422a]	1868	CATCH { $$ = ast::Terminate; }
	1869	\| RECOVER { $$ = ast::Terminate; }
	1870	\| CATCHRESUME { $$ = ast::Resume; }
	1871	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1872	;
[51b73452]	1873
	1874	finally_clause:
[6611177]	1875	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1876	;
[51b73452]	1877
	1878	exception_declaration:
[d0ffed1]	1879	// No SUE declaration in parameter list.
	1880	type_specifier_nobody
	1881	\| type_specifier_nobody declarator
[c0a33d2]	1882	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1883	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1884	{ $$ = $2->addType( $1 ); }
[033ff37]	1885	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1886	{ $$ = $1->addName( $2 ); }
[c0aa336]	1887	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1888	;
[51b73452]	1889
[2a8427c6]	1890	enable_disable_statement:
	1891	enable_disable_key identifier_list compound_statement
	1892	;
	1893
	1894	enable_disable_key:
	1895	ENABLE
	1896	\| DISABLE
	1897	;
	1898
[51b73452]	1899	asm_statement:
[ab57786]	1900	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1901	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1902	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1903	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1904	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1905	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1906	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1907	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1908	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1909	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1910	;
	1911
	1912	asm_volatile_opt: // GCC
	1913	// empty
	1914	{ $$ = false; }
	1915	\| VOLATILE
	1916	{ $$ = true; }
[4d51835]	1917	;
[b87a5ed]	1918
	1919	asm_operands_opt: // GCC
[4d51835]	1920	// empty
[58dd019]	1921	{ $$ = nullptr; } // use default argument
[4d51835]	1922	\| asm_operands_list
	1923	;
[b87a5ed]	1924
	1925	asm_operands_list: // GCC
[4d51835]	1926	asm_operand
	1927	\| asm_operands_list ',' asm_operand
[b93c544]	1928	{ $$ = $1->set_last( $3 ); }
[4d51835]	1929	;
[b87a5ed]	1930
	1931	asm_operand: // GCC
[ab57786]	1932	string_literal '(' constant_expression ')'
[32d6fdc]	1933	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1934	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1935	{
[32d6fdc]	1936	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1937	delete $2.str;
	1938	}
[7f5566b]	1939	;
	1940
[4e06c1e]	1941	asm_clobbers_list_opt: // GCC
[7f5566b]	1942	// empty
[58dd019]	1943	{ $$ = nullptr; } // use default argument
[ab57786]	1944	\| string_literal
[32d6fdc]	1945	{ $$ = $1; }
[ab57786]	1946	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1947	{ $$ = $1->set_last( $3 ); }
[4d51835]	1948	;
[b87a5ed]	1949
[7f5566b]	1950	label_list:
[033ff37]	1951	identifier
[ab57786]	1952	{
[bb7422a]	1953	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1954	delete $1; // allocated by lexer
	1955	}
[033ff37]	1956	\| label_list ',' identifier
[ab57786]	1957	{
[bb7422a]	1958	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1959	delete $3; // allocated by lexer
	1960	}
[4d51835]	1961	;
[51b73452]	1962
[e1d66c84]	1963	// **************************** DECLARATIONS *******************************
[51b73452]	1964
[b87a5ed]	1965	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1966	// empty
[58dd019]	1967	{ $$ = nullptr; }
[4d51835]	1968	\| declaration_list
	1969	;
[51b73452]	1970
	1971	declaration_list:
[4d51835]	1972	declaration
[647e2ea]	1973	\| declaration_list declaration
	1974	{ $$ = $1->set_last( $2 ); }
[4d51835]	1975	;
[51b73452]	1976
[407bde5]	1977	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1978	// empty
[58dd019]	1979	{ $$ = nullptr; }
[35718a9]	1980	\| KR_parameter_list
[4d51835]	1981	;
[51b73452]	1982
[35718a9]	1983	KR_parameter_list:
[c25f16b]	1984	c_declaration ';'
	1985	{ $$ = $1; }
	1986	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1987	{ $$ = $1->set_last( $2 ); }
[4d51835]	1988	;
[b87a5ed]	1989
[51b1202]	1990	local_label_declaration_opt: // GCC, local label
[4d51835]	1991	// empty
[51b1202]	1992	\| local_label_declaration_list
[4d51835]	1993	;
[b87a5ed]	1994
[51b1202]	1995	local_label_declaration_list: // GCC, local label
	1996	LABEL local_label_list ';'
	1997	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1998	;
[b87a5ed]	1999
[51b1202]	2000	local_label_list: // GCC, local label
[033ff37]	2001	identifier_or_type_name
	2002	\| local_label_list ',' identifier_or_type_name
[4d51835]	2003	;
[b87a5ed]	2004
[936e9f4]	2005	declaration: // old & new style declarations
[35718a9]	2006	c_declaration ';'
	2007	\| cfa_declaration ';' // CFA
[b9f6791f]	2008	\| static_assert ';' // C11
[4d51835]	2009	;
[b87a5ed]	2010
[b9be000b]	2011	static_assert:
[b9f6791f]	2012	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2013	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2014	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2015	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2016
[de62360d]	2017	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2018	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2019	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2020	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2021	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2022	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2023	//
[b87a5ed]	2024	// CFA C
	2025	// [10] int x; int x[10]; // array of 10 integers
	2026	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2027
[c0aa336]	2028	cfa_declaration: // CFA
[4cc585b]	2029	cfa_variable_declaration
	2030	\| cfa_typedef_declaration
	2031	\| cfa_function_declaration
	2032	\| type_declaring_list
[2501ae5]	2033	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2034	\| trait_specifier
[4d51835]	2035	;
[b87a5ed]	2036
[c0aa336]	2037	cfa_variable_declaration: // CFA
	2038	cfa_variable_specifier initializer_opt
[7fdb94e1]	2039	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2040	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2041	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2042	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2043	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2044	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2045	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2046	;
[b87a5ed]	2047
[c0aa336]	2048	cfa_variable_specifier: // CFA
[de62360d]	2049	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2050	// storage-class
[c0aa336]	2051	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2052	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2053	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2054	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2055	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2056	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2057
	2058	// [ int s, int t ]; // declare s and t
	2059	// [ int, int ] f();
	2060	// [] g( int );
	2061	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2062	// g( x + y );
	2063	\| cfa_function_return asm_name_opt
	2064	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2065	\| type_qualifier_list cfa_function_return asm_name_opt
	2066	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2067	;
[b87a5ed]	2068
[c0aa336]	2069	cfa_function_declaration: // CFA
	2070	cfa_function_specifier
	2071	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2072	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2073	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2074	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2075	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2076	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2077	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2078	{
[481115f]	2079	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2080	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2081	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2082	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2083	}
	2084	;
[b87a5ed]	2085
[c0aa336]	2086	cfa_function_specifier: // CFA
[647e2ea]	2087	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2088	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2089	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2090	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2091	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2092	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2093
[2871210]	2094	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2095	//
[647e2ea]	2096	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2097	// '[' ']' type_specifier
	2098	//
[2871210]	2099	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2100	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2101	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2102	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2103	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2104	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2105	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2106	;
[b87a5ed]	2107
[c0aa336]	2108	cfa_function_return: // CFA
[c0a33d2]	2109	'[' push cfa_parameter_list pop ']'
	2110	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2111	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2112	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2113	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2114	;
[b87a5ed]	2115
[c0aa336]	2116	cfa_typedef_declaration: // CFA
	2117	TYPEDEF cfa_variable_specifier
[4d51835]	2118	{
[71a422a]	2119	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2120	$$ = $2->addTypedef();
	2121	}
[c0aa336]	2122	\| TYPEDEF cfa_function_specifier
[4d51835]	2123	{
[71a422a]	2124	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2125	$$ = $2->addTypedef();
	2126	}
[647e2ea]	2127	\| cfa_typedef_declaration ',' identifier
[4d51835]	2128	{
[647e2ea]	2129	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2130	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2131	}
	2132	;
[b87a5ed]	2133
[de62360d]	2134	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2135	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2136
	2137	typedef_declaration:
[4d51835]	2138	TYPEDEF type_specifier declarator
	2139	{
[71a422a]	2140	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2141	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2142	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2143	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2144	}
[c25f16b]	2145	\| typedef_declaration ',' declarator
[4d51835]	2146	{
[c25f16b]	2147	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2148	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2149	}
[de62360d]	2150	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2151	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2152	\| type_specifier TYPEDEF declarator
[ac235a8]	2153	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2154	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2155	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2156	;
[b87a5ed]	2157
[721f17a]	2158	typedef_expression:
[25744d2]	2159	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2160	TYPEDEF identifier '=' assignment_expression
[4d51835]	2161	{
[ac235a8]	2162	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2163	}
[c25f16b]	2164	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2165	{
[ac235a8]	2166	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2167	}
	2168	;
[51b73452]	2169
[c0aa336]	2170	c_declaration:
[4cc585b]	2171	declaration_specifier declaring_list
[7fdb94e1]	2172	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2173	\| typedef_declaration
[25744d2]	2174	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2175	\| sue_declaration_specifier
[0bcd707]	2176	{
	2177	assert( $1->type );
[1a73dbb]	2178	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2179	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2180	}
	2181	// enums are never empty declarations because there must have at least one enumeration.
	2182	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2183	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2184	}
	2185	}
[4d51835]	2186	;
[51b73452]	2187
	2188	declaring_list:
[de62360d]	2189	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2190	// storage-class
[1f771fc]	2191	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2192	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2193	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2194	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2195
	2196	\| general_function_declarator asm_name_opt
	2197	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2198	\| general_function_declarator asm_name_opt '=' VOID
	2199	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2200
[4d51835]	2201	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2202	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2203	;
[b87a5ed]	2204
[1f771fc]	2205	general_function_declarator:
	2206	function_type_redeclarator
	2207	\| function_declarator
	2208	;
	2209
[b87a5ed]	2210	declaration_specifier: // type specifier + storage class
[4d51835]	2211	basic_declaration_specifier
[84d58c5]	2212	\| type_declaration_specifier
[79a6b17]	2213	\| sue_declaration_specifier
[0442f93f]	2214	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2215	{
[253d0b4]	2216	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2217	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2218	$$ = nullptr;
	2219	}
	2220	;
	2221
	2222	invalid_types:
	2223	aggregate_key
	2224	\| basic_type_name
	2225	\| indirect_type
[4d51835]	2226	;
[b87a5ed]	2227
[d0ffed1]	2228	declaration_specifier_nobody: // type specifier + storage class - {...}
	2229	// Preclude SUE declarations in restricted scopes:
	2230	//
	2231	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2232	//
	2233	// because it is impossible to call f due to name equivalence.
	2234	basic_declaration_specifier
	2235	\| sue_declaration_specifier_nobody
[84d58c5]	2236	\| type_declaration_specifier
[d0ffed1]	2237	;
	2238
	2239	type_specifier: // type specifier
[4d51835]	2240	basic_type_specifier
	2241	\| sue_type_specifier
[84d58c5]	2242	\| type_type_specifier
[4d51835]	2243	;
[b87a5ed]	2244
[d0ffed1]	2245	type_specifier_nobody: // type specifier - {...}
	2246	// Preclude SUE declarations in restricted scopes:
	2247	//
	2248	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2249	//
	2250	// because it is impossible to call f due to name equivalence.
	2251	basic_type_specifier
	2252	\| sue_type_specifier_nobody
[84d58c5]	2253	\| type_type_specifier
[d0ffed1]	2254	;
	2255
[b87a5ed]	2256	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2257	// empty
[58dd019]	2258	{ $$ = nullptr; }
[4d51835]	2259	\| type_qualifier_list
	2260	;
[51b73452]	2261
	2262	type_qualifier_list:
[de62360d]	2263	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2264	//
[de62360d]	2265	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2266	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2267	// appeared only once.
[4d51835]	2268	type_qualifier
	2269	\| type_qualifier_list type_qualifier
	2270	{ $$ = $1->addQualifiers( $2 ); }
	2271	;
[51b73452]	2272
	2273	type_qualifier:
[4d51835]	2274	type_qualifier_name
[6cef439]	2275	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2276	\| attribute // trick handles most attribute locations
[4d51835]	2277	;
[51b73452]	2278
	2279	type_qualifier_name:
[4d51835]	2280	CONST
[6cef439]	2281	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2282	\| RESTRICT
[6cef439]	2283	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2284	\| VOLATILE
[6cef439]	2285	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2286	\| ATOMIC
[6cef439]	2287	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2288
[446740a]	2289	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2290	//
	2291	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2292	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2293	\| forall
[6cef439]	2294	{ $$ = build_forall( $1 ); }
[a16a7ec]	2295	;
	2296
	2297	forall:
[35718a9]	2298	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2299	{ $$ = $3; }
[4d51835]	2300	;
[51b73452]	2301
	2302	declaration_qualifier_list:
[4d51835]	2303	storage_class_list
[de62360d]	2304	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2305	{ $$ = $1->addQualifiers( $2 ); }
	2306	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2307	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2308	;
[51b73452]	2309
	2310	storage_class_list:
[de62360d]	2311	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2312	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2313	//
[de62360d]	2314	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2315	// specifiers in a declaration.
[4d51835]	2316	storage_class
	2317	\| storage_class_list storage_class
	2318	{ $$ = $1->addQualifiers( $2 ); }
	2319	;
[51b73452]	2320
	2321	storage_class:
[4d51835]	2322	EXTERN
[36e6f10]	2323	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2324	\| STATIC
[36e6f10]	2325	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2326	\| AUTO
[36e6f10]	2327	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2328	\| REGISTER
[36e6f10]	2329	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2330	\| THREADLOCALGCC // GCC
[36e6f10]	2331	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2332	\| THREADLOCALC11 // C11
[36e6f10]	2333	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2334	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2335	\| INLINE // C99
[36e6f10]	2336	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2337	\| FORTRAN // C99
[36e6f10]	2338	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2339	\| NORETURN // C11
[36e6f10]	2340	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2341	;
[51b73452]	2342
	2343	basic_type_name:
[6cef439]	2344	basic_type_name_type
	2345	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2346	;
	2347
	2348	// Just an intermediate value for conversion.
	2349	basic_type_name_type:
[201aeb9]	2350	VOID
[e048ece]	2351	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2352	\| BOOL // C99
[e048ece]	2353	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2354	\| CHAR
[e048ece]	2355	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2356	\| INT
[e048ece]	2357	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2358	\| INT128
[e048ece]	2359	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2360	\| UINT128
[e048ece]	2361	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2362	\| FLOAT
[e048ece]	2363	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2364	\| DOUBLE
[e048ece]	2365	{ $$ = build_basic_type( TypeData::Double ); }
[e15853c]	2366	\| uuFLOAT80
[e048ece]	2367	{ $$ = build_basic_type( TypeData::uuFloat80 ); }
[e15853c]	2368	\| uuFLOAT128
[e048ece]	2369	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[e15853c]	2370	\| uFLOAT16
[e048ece]	2371	{ $$ = build_basic_type( TypeData::uFloat16 ); }
[e15853c]	2372	\| uFLOAT32
[e048ece]	2373	{ $$ = build_basic_type( TypeData::uFloat32 ); }
[e15853c]	2374	\| uFLOAT32X
[e048ece]	2375	{ $$ = build_basic_type( TypeData::uFloat32x ); }
[e15853c]	2376	\| uFLOAT64
[e048ece]	2377	{ $$ = build_basic_type( TypeData::uFloat64 ); }
[e15853c]	2378	\| uFLOAT64X
[e048ece]	2379	{ $$ = build_basic_type( TypeData::uFloat64x ); }
[e15853c]	2380	\| uFLOAT128
[e048ece]	2381	{ $$ = build_basic_type( TypeData::uFloat128 ); }
[15f769c]	2382	\| DECIMAL32
	2383	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2384	\| DECIMAL64
	2385	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2386	\| DECIMAL128
	2387	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2388	\| COMPLEX // C99
[e048ece]	2389	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2390	\| IMAGINARY // C99
[e048ece]	2391	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2392	\| SIGNED
[e048ece]	2393	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2394	\| UNSIGNED
[e048ece]	2395	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2396	\| SHORT
[e048ece]	2397	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2398	\| LONG
[e048ece]	2399	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2400	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2401	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2402	\| AUTO_TYPE
[e048ece]	2403	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2404	\| vtable
	2405	;
	2406
	2407	vtable_opt:
	2408	// empty
	2409	{ $$ = nullptr; }
[9380add]	2410	\| vtable
[1f652a7]	2411	;
	2412
	2413	vtable:
[8f6f3729]	2414	VTABLE '(' type_name ')' default_opt
[6cef439]	2415	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2416	;
	2417
	2418	default_opt:
	2419	// empty
	2420	{ $$ = nullptr; }
	2421	\| DEFAULT
	2422	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2423	;
[51b73452]	2424
	2425	basic_declaration_specifier:
[4d51835]	2426	// A semantic check is necessary for conflicting storage classes.
	2427	basic_type_specifier
	2428	\| declaration_qualifier_list basic_type_specifier
	2429	{ $$ = $2->addQualifiers( $1 ); }
	2430	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2431	{ $$ = $1->addQualifiers( $2 ); }
	2432	\| basic_declaration_specifier storage_class type_qualifier_list
	2433	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2434	\| basic_declaration_specifier storage_class basic_type_specifier
	2435	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2436	;
[51b73452]	2437
	2438	basic_type_specifier:
[84d58c5]	2439	direct_type
[f38e7d7]	2440	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2441	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2442	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2443	;
[51b73452]	2444
[84d58c5]	2445	direct_type:
[4d51835]	2446	basic_type_name
	2447	\| type_qualifier_list basic_type_name
	2448	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2449	\| direct_type type_qualifier
[4d51835]	2450	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2451	\| direct_type basic_type_name
[4d51835]	2452	{ $$ = $1->addType( $2 ); }
	2453	;
[51b73452]	2454
[84d58c5]	2455	indirect_type:
[b6ad601]	2456	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2457	{ $$ = $3; }
[b6ad601]	2458	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2459	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2460	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2461	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2462	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2463	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2464	\| ZERO_T // CFA
[e048ece]	2465	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2466	\| ONE_T // CFA
[e048ece]	2467	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2468	;
[51b73452]	2469
[d0ffed1]	2470	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2471	sue_type_specifier
	2472	\| declaration_qualifier_list sue_type_specifier
	2473	{ $$ = $2->addQualifiers( $1 ); }
	2474	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2475	{ $$ = $1->addQualifiers( $2 ); }
	2476	\| sue_declaration_specifier storage_class type_qualifier_list
	2477	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2478	;
[51b73452]	2479
[d0ffed1]	2480	sue_type_specifier: // struct, union, enum + type specifier
	2481	elaborated_type
[fdca7c6]	2482	\| type_qualifier_list
	2483	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2484	elaborated_type
	2485	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2486	\| sue_type_specifier type_qualifier
[284da8c]	2487	{
	2488	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2489	$$ = $1->addQualifiers( $2 );
	2490	}
[4d51835]	2491	;
[51b73452]	2492
[d0ffed1]	2493	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2494	sue_type_specifier_nobody
	2495	\| declaration_qualifier_list sue_type_specifier_nobody
	2496	{ $$ = $2->addQualifiers( $1 ); }
	2497	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2498	{ $$ = $1->addQualifiers( $2 ); }
	2499	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2500	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2501	;
	2502
	2503	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2504	elaborated_type_nobody
	2505	\| type_qualifier_list elaborated_type_nobody
	2506	{ $$ = $2->addQualifiers( $1 ); }
	2507	\| sue_type_specifier_nobody type_qualifier
	2508	{ $$ = $1->addQualifiers( $2 ); }
	2509	;
	2510
[84d58c5]	2511	type_declaration_specifier:
	2512	type_type_specifier
	2513	\| declaration_qualifier_list type_type_specifier
[4d51835]	2514	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2515	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2516	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2517	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2518	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2519	;
[b87a5ed]	2520
[84d58c5]	2521	type_type_specifier: // typedef types
	2522	type_name
[6cef439]	2523	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2524	\| type_qualifier_list type_name
[6cef439]	2525	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2526	\| type_type_specifier type_qualifier
	2527	{ $$ = $1->addQualifiers( $2 ); }
	2528	;
	2529
	2530	type_name:
[4d51835]	2531	TYPEDEFname
[6cef439]	2532	{ $$ = build_typedef( $1 ); }
[84d58c5]	2533	\| '.' TYPEDEFname
[6cef439]	2534	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2535	\| type_name '.' TYPEDEFname
[6cef439]	2536	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2537	\| typegen_name
	2538	\| '.' typegen_name
[6cef439]	2539	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2540	\| type_name '.' typegen_name
[6cef439]	2541	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2542	;
	2543
	2544	typegen_name: // CFA
[65d6de4]	2545	TYPEGENname
[6cef439]	2546	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2547	\| TYPEGENname '(' ')'
[6cef439]	2548	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2549	\| TYPEGENname '(' type_list ')'
[6cef439]	2550	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2551	;
[51b73452]	2552
[d0ffed1]	2553	elaborated_type: // struct, union, enum
[c0aa336]	2554	aggregate_type
	2555	\| enum_type
[4d51835]	2556	;
[51b73452]	2557
[d0ffed1]	2558	elaborated_type_nobody: // struct, union, enum - {...}
	2559	aggregate_type_nobody
	2560	\| enum_type_nobody
	2561	;
	2562
[7e13b11]	2563	// ************************ AGGREGATE *****************************
	2564
[d0ffed1]	2565	aggregate_type: // struct, union
[fc20514]	2566	aggregate_key attribute_list_opt
	2567	{ forall = false; } // reset
	2568	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2569	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2570	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2571	{
[71a422a]	2572	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2573	forall = false; // reset
	2574	}
[284da8c]	2575	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2576	{
	2577	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2578	}
[f9c3100]	2579	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2580	{
[71a422a]	2581	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2582	forall = false; // reset
	2583	}
[284da8c]	2584	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2585	{
[6cef439]	2586	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2587	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2588	}
	2589	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2590	{
[71a422a]	2591	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2592	forall = false; // reset
	2593	}
	2594	'{' field_declaration_list_opt '}' type_parameters_opt
	2595	{
[6cef439]	2596	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2597	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2598	}
[d0ffed1]	2599	\| aggregate_type_nobody
	2600	;
	2601
[284da8c]	2602	type_parameters_opt:
	2603	// empty
	2604	{ $$ = nullptr; } %prec '}'
	2605	\| '(' type_list ')'
	2606	{ $$ = $2; }
	2607	;
	2608
[d0ffed1]	2609	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2610	aggregate_key attribute_list_opt identifier
[84d58c5]	2611	{
[71a422a]	2612	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2613	forall = false; // reset
[84d58c5]	2614	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2615	}
[73f04fd]	2616	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2617	{
[fc20514]	2618	forall = false; // reset
[65d6de4]	2619	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2620	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2621	// delete newFromTypeGen.
[6cef439]	2622	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2623	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2624	} else {
[6cef439]	2625	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2626	$3->symbolic.name = nullptr; // copied to $$
	2627	$3->symbolic.actuals = nullptr;
[9fa61f5]	2628	delete $3;
	2629	}
[65d6de4]	2630	}
[4d51835]	2631	;
[51b73452]	2632
	2633	aggregate_key:
[e307e12]	2634	aggregate_data
	2635	\| aggregate_control
	2636	;
	2637
	2638	aggregate_data:
[1f652a7]	2639	STRUCT vtable_opt
[bb7422a]	2640	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2641	\| UNION
[bb7422a]	2642	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2643	\| EXCEPTION // CFA
[bb7422a]	2644	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2645	;
	2646
	2647	aggregate_control: // CFA
[cbbd8fd7]	2648	MONITOR
[bb7422a]	2649	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2650	\| MUTEX STRUCT
[bb7422a]	2651	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2652	\| GENERATOR
[bb7422a]	2653	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2654	\| MUTEX GENERATOR
[bb7422a]	2655	{
	2656	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2657	$$ = ast::AggregateDecl::NoAggregate;
	2658	}
[d3bc0ad]	2659	\| COROUTINE
[bb7422a]	2660	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2661	\| MUTEX COROUTINE
[bb7422a]	2662	{
	2663	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2664	$$ = ast::AggregateDecl::NoAggregate;
	2665	}
[d3bc0ad]	2666	\| THREAD
[bb7422a]	2667	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2668	\| MUTEX THREAD
[bb7422a]	2669	{
	2670	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2671	$$ = ast::AggregateDecl::NoAggregate;
	2672	}
[4d51835]	2673	;
[51b73452]	2674
[7fdb94e1]	2675	field_declaration_list_opt:
[5d125e4]	2676	// empty
[58dd019]	2677	{ $$ = nullptr; }
[7fdb94e1]	2678	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2679	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2680	;
[51b73452]	2681
	2682	field_declaration:
[679e644]	2683	type_specifier field_declaring_list_opt ';'
[d8454b9]	2684	{
	2685	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2686	$$ = fieldDecl( $1, $2 );
	2687	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2688	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2689	// printf( "\tattr %s\n", attr->name.c_str() );
	2690	// } // for
	2691	}
[0442f93f]	2692	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2693	{
[253d0b4]	2694	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2695	$$ = nullptr;
	2696	}
[679e644]	2697	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2698	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2699	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2700	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2701	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2702	{
[dea36ee]	2703	if ( ! $3 ) { // field declarator ?
	2704	$3 = DeclarationNode::newName( nullptr );
	2705	} // if
[679a260]	2706	$3->inLine = true;
[679e644]	2707	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2708	distInl( $3 );
[8f91c9ae]	2709	}
[e307e12]	2710	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2711	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2712	\| typedef_declaration ';' // CFA
	2713	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2714	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2715	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2716	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2717	{ $$ = $2; } // mark all fields in list
[46fa473]	2718	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2719	\| static_assert ';' // C11
[4d51835]	2720	;
[b87a5ed]	2721
[679e644]	2722	field_declaring_list_opt:
	2723	// empty
	2724	{ $$ = nullptr; }
[12f1156]	2725	\| field_declarator
	2726	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2727	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2728	;
[51b73452]	2729
[679e644]	2730	field_declarator:
[e07caa2]	2731	bit_subrange_size // C special case, no field name
[4d51835]	2732	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2733	\| variable_declarator bit_subrange_size_opt
[679e644]	2734	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2735	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2736	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2737	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2738	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2739	\| function_type_redeclarator bit_subrange_size_opt
	2740	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2741	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2742	;
	2743
[e07caa2]	2744	field_abstract_list_opt:
	2745	// empty
[dea36ee]	2746	{ $$ = nullptr; }
[e07caa2]	2747	\| field_abstract
	2748	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2749	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2750	;
	2751
[e07caa2]	2752	field_abstract:
[f7e4db27]	2753	// no bit fields
[e07caa2]	2754	variable_abstract_declarator
[679e644]	2755	;
	2756
	2757	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2758	// bit-fields are handled by C declarations
[033ff37]	2759	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2760	{ $$ = $1->addName( $2 ); }
[033ff37]	2761	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2762	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2763	;
	2764
	2765	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2766	// bit-fields are handled by C declarations
[679e644]	2767	cfa_abstract_declarator_tuple
	2768	\| cfa_field_abstract_list ','
[dc3fbe5]	2769	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2770	;
[51b73452]	2771
	2772	bit_subrange_size_opt:
[4d51835]	2773	// empty
[58dd019]	2774	{ $$ = nullptr; }
[4d51835]	2775	\| bit_subrange_size
	2776	;
[51b73452]	2777
	2778	bit_subrange_size:
[c786e1d]	2779	':' assignment_expression
[4d51835]	2780	{ $$ = $2; }
	2781	;
[51b73452]	2782
[7e13b11]	2783	// ************************ ENUMERATION *****************************
[647e2ea]	2784
[9e7236f4]	2785	enum_type:
[30aab55]	2786	// anonymous, no type name
	2787	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2788	{
	2789	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2790	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2791	} // if
	2792	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2793	}
[42422fb]	2794	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2795	{
[42422fb]	2796	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2797	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2798	}
[42422fb]	2799	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2800	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2801	} // if
	2802	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2803	}
[30aab55]	2804
[42422fb]	2805	// named type
[30aab55]	2806	\| ENUM attribute_list_opt identifier
	2807	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2808	hide_opt '{' enumerator_list comma_opt '}'
	2809	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2810	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2811	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2812	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2813	{
[42422fb]	2814	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2815	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2816	}
[42422fb]	2817	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2818	}
[c7f12a4]	2819	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2820	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2821	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2822	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2823
	2824	// forward declaration
[d0ffed1]	2825	\| enum_type_nobody
	2826	;
	2827
[42422fb]	2828	enumerator_type:
	2829	'(' ')' // pure enumeration
	2830	{ $$ = nullptr; }
	2831	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2832	{ $$ = $2; }
	2833	;
	2834
[c7f12a4]	2835	hide_opt:
	2836	// empty
[7cf8006]	2837	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2838	\| '!'
[7cf8006]	2839	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2840	;
	2841
[d0ffed1]	2842	enum_type_nobody: // enum - {...}
[f9c3100]	2843	ENUM attribute_list_opt identifier
[71a422a]	2844	{
	2845	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2846	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2847	}
[0bd46fd]	2848	\| ENUM attribute_list_opt type_name
[71a422a]	2849	{
[6cef439]	2850	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2851	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2852	}
[4d51835]	2853	;
[51b73452]	2854
	2855	enumerator_list:
[2ca7fc2]	2856	// empty
	2857	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2858	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2859	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2860	\| INLINE type_name
[d9bad51]	2861	{
	2862	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2863	$2->symbolic.name = nullptr;
	2864	delete $2;
	2865	}
[7cf8006]	2866	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2867	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2868	\| enumerator_list ',' INLINE type_name
	2869	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2870	;
[51b73452]	2871
[7cf8006]	2872	visible_hide_opt:
[c7f12a4]	2873	hide_opt
	2874	\| '^'
[7cf8006]	2875	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2876	;
	2877
[51b73452]	2878	enumerator_value_opt:
[4d51835]	2879	// empty
[58dd019]	2880	{ $$ = nullptr; }
[7991c7d]	2881	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2882	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2883	// \| simple_assignment_operator initializer
	2884	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2885	;
[51b73452]	2886
[7e13b11]	2887	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2888
	2889	parameter_list_ellipsis_opt:
	2890	// empty
	2891	{ $$ = nullptr; }
	2892	\| ELLIPSIS
	2893	{ $$ = nullptr; }
	2894	\| parameter_list
	2895	\| parameter_list ',' ELLIPSIS
	2896	{ $$ = $1->addVarArgs(); }
	2897	;
	2898
	2899	parameter_list: // abstract + real
	2900	parameter_declaration
	2901	\| abstract_parameter_declaration
	2902	\| parameter_list ',' parameter_declaration
	2903	{ $$ = $1->set_last( $3 ); }
	2904	\| parameter_list ',' abstract_parameter_declaration
	2905	{ $$ = $1->set_last( $3 ); }
	2906	;
	2907
	2908	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2909	// empty
[e048ece]	2910	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2911	\| ELLIPSIS
[58dd019]	2912	{ $$ = nullptr; }
[c0aa336]	2913	\| cfa_parameter_list
[647e2ea]	2914	\| cfa_abstract_parameter_list
	2915	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2916	{ $$ = $1->set_last( $3 ); }
	2917	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2918	{ $$ = $1->addVarArgs(); }
[647e2ea]	2919	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2920	{ $$ = $1->addVarArgs(); }
	2921	;
[b87a5ed]	2922
[c0aa336]	2923	cfa_parameter_list: // CFA
	2924	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2925	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2926	cfa_parameter_declaration
[647e2ea]	2927	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2928	{ $$ = $1->set_last( $3 ); }
	2929	\| cfa_parameter_list ',' cfa_parameter_declaration
	2930	{ $$ = $1->set_last( $3 ); }
	2931	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2932	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2933	;
[b87a5ed]	2934
[c0aa336]	2935	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2936	cfa_abstract_parameter_declaration
[647e2ea]	2937	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2938	{ $$ = $1->set_last( $3 ); }
[4d51835]	2939	;
[51b73452]	2940
[de62360d]	2941	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2942	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2943
[647e2ea]	2944	parameter_declaration:
	2945	// No SUE declaration in parameter list.
	2946	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2947	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2948	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2949	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2950	;
	2951
	2952	abstract_parameter_declaration:
	2953	declaration_specifier_nobody default_initializer_opt
	2954	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2955	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2956	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2957	;
	2958
[c0aa336]	2959	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2960	parameter_declaration
[5a51798]	2961	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2962	{ $$ = $1->addName( $2 ); }
[5a51798]	2963	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2964	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2965	{ $$ = $1->addName( $2 ); }
[5a51798]	2966	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2967	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2968	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2969	;
[b87a5ed]	2970
[c0aa336]	2971	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2972	abstract_parameter_declaration
[c0aa336]	2973	\| cfa_identifier_parameter_declarator_no_tuple
	2974	\| cfa_abstract_tuple
	2975	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2976	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2977	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2978	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2979	;
[51b73452]	2980
[c11e31c]	2981	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2982	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2983	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2984
[b87a5ed]	2985	identifier_list: // K&R-style parameter list => no types
[033ff37]	2986	identifier
[4d51835]	2987	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2988	\| identifier_list ',' identifier
[dc3fbe5]	2989	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	2990	;
[51b73452]	2991
[84d58c5]	2992	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2993	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	2994	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	2995	\| type_specifier abstract_declarator
[4d51835]	2996	{ $$ = $2->addType( $1 ); }
	2997	;
[b87a5ed]	2998
[84d58c5]	2999	type: // typeof, assertion
	3000	type_no_function
[c0aa336]	3001	\| cfa_abstract_function // CFA
[4d51835]	3002	;
[51b73452]	3003
	3004	initializer_opt:
[4d51835]	3005	// empty
[58dd019]	3006	{ $$ = nullptr; }
[f9c3100]	3007	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3008	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3009	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3010	;
[51b73452]	3011
	3012	initializer:
[de62360d]	3013	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3014	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3015	;
[51b73452]	3016
[7fdb94e1]	3017	initializer_list_opt:
[097e2b0]	3018	// empty
[58dd019]	3019	{ $$ = nullptr; }
[097e2b0]	3020	\| initializer
[4d51835]	3021	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3022	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3023	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3024	;
[b87a5ed]	3025
[de62360d]	3026	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3027	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3028	//
[b87a5ed]	3029	// int x[10] = { [1] = 3 };
[c11e31c]	3030	//
[de62360d]	3031	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3032	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3033	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3034	// shift/reduce conflicts
[51b73452]	3035
	3036	designation:
[4d51835]	3037	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3038	\| identifier_at ':' // GCC, field name
[bb7422a]	3039	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3040	;
[51b73452]	3041
[b87a5ed]	3042	designator_list: // C99
[4d51835]	3043	designator
[2871210]	3044	\| designator_list designator
[b93c544]	3045	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3046	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3047	;
[51b73452]	3048
	3049	designator:
[e16eb460]	3050	'.' identifier_at // C99, field name
[bb7422a]	3051	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3052	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3053	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3054	{ $$ = $3; }
[c0a33d2]	3055	\| '[' push subrange pop ']' // CFA, multiple array elements
	3056	{ $$ = $3; }
	3057	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3058	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3059	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3060	{ $$ = $4; }
[4d51835]	3061	;
[51b73452]	3062
[de62360d]	3063	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3064	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3065	//
	3066	// Overloading: function, data, and operator identifiers may be overloaded.
	3067	//
[3ca7ef3]	3068	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3069	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3070	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3071	//
[de62360d]	3072	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3073	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3074	//
	3075	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3076	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3077	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3078	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3079	// on type arguments of polymorphic functions.
[c11e31c]	3080
[b87a5ed]	3081	type_parameter_list: // CFA
[67cf18c]	3082	type_parameter
	3083	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3084	{ $$ = $1->set_last( $3 ); }
[4d51835]	3085	;
[b87a5ed]	3086
[84d58c5]	3087	type_initializer_opt: // CFA
	3088	// empty
	3089	{ $$ = nullptr; }
	3090	\| '=' type
	3091	{ $$ = $2; }
	3092	;
	3093
[b87a5ed]	3094	type_parameter: // CFA
[033ff37]	3095	type_class identifier_or_type_name
[408ab79]	3096	{
[71a422a]	3097	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3098	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3099	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3100	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3101	}
[5a51798]	3102	type_initializer_opt assertion_list_opt
[67cf18c]	3103	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3104	\| identifier_or_type_name new_type_class
[71a422a]	3105	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3106	type_initializer_opt assertion_list_opt
	3107	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3108	\| '[' identifier_or_type_name ']'
[b66d14a]	3109	{
[71a422a]	3110	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3111	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3112	}
[5a51798]	3113	// \| type_specifier identifier_parameter_declarator
[9997fee]	3114	\| assertion_list
[bb7422a]	3115	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3116	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3117	{
	3118	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3119	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3120	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3121	}
[4d51835]	3122	;
[b87a5ed]	3123
[5a51798]	3124	new_type_class: // CFA
	3125	// empty
[bb7422a]	3126	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3127	\| '&'
[bb7422a]	3128	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3129	\| '*'
[7e13b11]	3130	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3131	// \| '(' '*' ')' // Gregor made me do it
	3132	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3133	\| ELLIPSIS
[bb7422a]	3134	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3135	;
	3136
[b87a5ed]	3137	type_class: // CFA
[4040425]	3138	OTYPE
[bb7422a]	3139	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3140	\| DTYPE
[bb7422a]	3141	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3142	\| FTYPE
[bb7422a]	3143	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3144	\| TTYPE
[bb7422a]	3145	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3146	;
[b87a5ed]	3147
	3148	assertion_list_opt: // CFA
[4d51835]	3149	// empty
[58dd019]	3150	{ $$ = nullptr; }
[9997fee]	3151	\| assertion_list
	3152	;
	3153
	3154	assertion_list: // CFA
	3155	assertion
	3156	\| assertion_list assertion
[dc3fbe5]	3157	{ $$ = $1->set_last( $2 ); }
[4d51835]	3158	;
[b87a5ed]	3159
	3160	assertion: // CFA
[033ff37]	3161	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3162	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3163	\| '\|' '{' trait_declaration_list '}'
	3164	{ $$ = $3; }
[35718a9]	3165	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3166	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3167	;
[b87a5ed]	3168
[84d58c5]	3169	type_list: // CFA
	3170	type
[bb7422a]	3171	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3172	\| assignment_expression
[84d58c5]	3173	\| type_list ',' type
[b93c544]	3174	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3175	\| type_list ',' assignment_expression
[b93c544]	3176	{ $$ = $1->set_last( $3 ); }
[4d51835]	3177	;
[b87a5ed]	3178
	3179	type_declaring_list: // CFA
[4040425]	3180	OTYPE type_declarator
[4d51835]	3181	{ $$ = $2; }
[4040425]	3182	\| storage_class_list OTYPE type_declarator
[4d51835]	3183	{ $$ = $3->addQualifiers( $1 ); }
	3184	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3185	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3186	;
[b87a5ed]	3187
	3188	type_declarator: // CFA
[4d51835]	3189	type_declarator_name assertion_list_opt
	3190	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3191	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3192	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3193	;
[b87a5ed]	3194
	3195	type_declarator_name: // CFA
[033ff37]	3196	identifier_or_type_name
[4d51835]	3197	{
[71a422a]	3198	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3199	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3200	}
[033ff37]	3201	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3202	{
[71a422a]	3203	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3204	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3205	}
	3206	;
[b87a5ed]	3207
[4040425]	3208	trait_specifier: // CFA
[033ff37]	3209	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3210	{
[3d937e2]	3211	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3212	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3213	}
	3214	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3215	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3216	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3217	{
[3d937e2]	3218	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3219	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3220	}
[206ecae]	3221	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3222	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3223	;
[b87a5ed]	3224
[84d58c5]	3225	trait_declaration_list: // CFA
[4040425]	3226	trait_declaration
[206ecae]	3227	\| trait_declaration_list trait_declaration
	3228	{ $$ = $1->set_last( $2 ); }
[4d51835]	3229	;
[b87a5ed]	3230
[84d58c5]	3231	trait_declaration: // CFA
[13e8427]	3232	cfa_trait_declaring_list ';'
	3233	\| trait_declaring_list ';'
[4d51835]	3234	;
[b87a5ed]	3235
[c0aa336]	3236	cfa_trait_declaring_list: // CFA
	3237	cfa_variable_specifier
	3238	\| cfa_function_specifier
[206ecae]	3239	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3240	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3241	;
[b87a5ed]	3242
[4040425]	3243	trait_declaring_list: // CFA
[4941716]	3244	// Cannot declare an aggregate or enumeration in a trait.
	3245	type_specifier_nobody declarator
[7fdb94e1]	3246	{ $$ = $2->addType( $1 ); }
[206ecae]	3247	\| trait_declaring_list ',' declarator
	3248	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4941716]	3249	\| error
	3250	{ SemanticError( yylloc, "Possible cause is declaring an aggregate or enumeration type in a trait." ); $$ = nullptr; }
[4d51835]	3251	;
[51b73452]	3252
[e1d66c84]	3253	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3254
	3255	translation_unit:
[3d56d15b]	3256	// empty, input file
[4d51835]	3257	\| external_definition_list
[12f1156]	3258	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3259	;
[51b73452]	3260
	3261	external_definition_list:
[35718a9]	3262	push external_definition pop
	3263	{ $$ = $2; }
[fc20514]	3264	\| external_definition_list push external_definition pop
[dc3fbe5]	3265	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3266	;
[51b73452]	3267
	3268	external_definition_list_opt:
[4d51835]	3269	// empty
[58dd019]	3270	{ $$ = nullptr; }
[3d56d15b]	3271	\| external_definition_list
	3272	;
	3273
	3274	up:
[fc20514]	3275	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3276	;
	3277
	3278	down:
	3279	{ typedefTable.down(); }
[4d51835]	3280	;
[51b73452]	3281
	3282	external_definition:
[2d019af]	3283	DIRECTIVE
[bb7422a]	3284	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3285	\| declaration
[1a73dbb]	3286	{
	3287	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3288	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3289	// disallowed at the moment.
[4eb3a7c5]	3290	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3291	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3292	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3293	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3294	}
	3295	}
	3296	}
[996c8ed]	3297	\| IDENTIFIER IDENTIFIER
	3298	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3299	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3300	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3301	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3302	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3303	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3304	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3305	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3306	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3307	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3308	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3309	\| external_function_definition
[ecae5860]	3310	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3311	{
	3312	distExt( $2 ); // mark all fields in list
	3313	$$ = $2;
	3314	}
[e994912]	3315	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3316	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3317	\| EXTERN STRINGliteral
	3318	{
	3319	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3320	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3321	}
[ae2f2ae]	3322	up external_definition down
[aac37fa]	3323	{
	3324	linkage = linkageStack.top();
	3325	linkageStack.pop();
	3326	$$ = $5;
	3327	}
[c0aa336]	3328	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3329	{
[3b8e52c]	3330	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3331	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3332	}
[3d56d15b]	3333	'{' up external_definition_list_opt down '}'
[4d51835]	3334	{
	3335	linkage = linkageStack.top();
	3336	linkageStack.pop();
[3d56d15b]	3337	$$ = $6;
[8e9cbb2]	3338	}
[7e13b11]	3339	// global distribution
[9997fee]	3340	\| type_qualifier_list
	3341	{
[55266c7]	3342	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3343	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3344	}
[fc20514]	3345	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3346	}
	3347	'{' up external_definition_list_opt down '}' // CFA, namespace
	3348	{
[4c3ee8d]	3349	distQual( $5, $1 );
[9fd9d015]	3350	forall = false;
[3d56d15b]	3351	$$ = $5;
[9997fee]	3352	}
	3353	\| declaration_qualifier_list
	3354	{
[55266c7]	3355	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3356	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3357	}
[fc20514]	3358	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3359	}
	3360	'{' up external_definition_list_opt down '}' // CFA, namespace
	3361	{
[4c3ee8d]	3362	distQual( $5, $1 );
[9fd9d015]	3363	forall = false;
[3d56d15b]	3364	$$ = $5;
[9997fee]	3365	}
	3366	\| declaration_qualifier_list type_qualifier_list
	3367	{
[55266c7]	3368	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3369	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3370	}
[b2ddaf3]	3371	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3372	}
[3d56d15b]	3373	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3374	{
[284da8c]	3375	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3376	forall = false;
[3d56d15b]	3377	$$ = $6;
[9997fee]	3378	}
[b9f6791f]	3379	\| ';' // empty declaration
	3380	{ $$ = nullptr; }
[4d51835]	3381	;
	3382
	3383	external_function_definition:
	3384	function_definition
[de62360d]	3385	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3386	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3387	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3388	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3389	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3390	\| function_declarator compound_statement
[c0a33d2]	3391	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3392	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3393	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3394	;
[51b73452]	3395
[8b47e50]	3396	with_clause_opt:
	3397	// empty
[9997fee]	3398	{ $$ = nullptr; forall = false; }
[e78966e]	3399	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3400	{
	3401	$$ = $3; forall = false;
	3402	if ( $5 ) {
[253d0b4]	3403	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3404	$$ = nullptr;
	3405	} // if
	3406	}
[8b47e50]	3407	;
	3408
[51b73452]	3409	function_definition:
[8b47e50]	3410	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3411	{
[481115f]	3412	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3413	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3414	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3415	$$ = $1;
[4d51835]	3416	}
[8b47e50]	3417	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3418	{
[c38ae92]	3419	rebindForall( $1, $2 );
[7fdb94e1]	3420	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3421	}
[1f771fc]	3422	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3423	{
	3424	rebindForall( $1, $2 );
[5fcba14]	3425	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3426	}
[a16a7ec]	3427	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3428	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3429	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3430	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3431	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3432	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3433	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3434	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3435	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3436
	3437	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3438	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3439	{
[c38ae92]	3440	rebindForall( $1, $2 );
[5fcba14]	3441	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3442	}
[a16a7ec]	3443	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3444	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3445	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3446	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3447	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3448	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3449	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3450	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3451	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3452	;
[51b73452]	3453
	3454	declarator:
[4d51835]	3455	variable_declarator
[c6b1105]	3456	\| variable_type_redeclarator
[4d51835]	3457	\| function_declarator
[1f771fc]	3458	\| function_type_redeclarator
[4d51835]	3459	;
[51b73452]	3460
	3461	subrange:
[4d51835]	3462	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3463	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3464	;
[b87a5ed]	3465
[7e13b11]	3466	// ************************** ASM ***************************
	3467
[b87a5ed]	3468	asm_name_opt: // GCC
[4d51835]	3469	// empty
[58dd019]	3470	{ $$ = nullptr; }
	3471	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3472	{
	3473	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3474	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3475	$$ = name->addQualifiers( $5 );
	3476	}
[4d51835]	3477	;
[b87a5ed]	3478
[7e13b11]	3479	// ************************** ATTRIBUTE ***************************
	3480
[b87a5ed]	3481	attribute_list_opt: // GCC
[4d51835]	3482	// empty
[58dd019]	3483	{ $$ = nullptr; }
[4d51835]	3484	\| attribute_list
	3485	;
[b87a5ed]	3486
	3487	attribute_list: // GCC
[4d51835]	3488	attribute
	3489	\| attribute_list attribute
[1db21619]	3490	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3491	;
[b87a5ed]	3492
	3493	attribute: // GCC
[44a81853]	3494	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3495	{ $$ = $4; }
[647e2ea]	3496	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3497	{ $$ = $3; }
	3498	\| ATTR '(' attribute_name_list ')' // CFA
	3499	{ $$ = $3; }
[4d51835]	3500	;
[b87a5ed]	3501
[44a81853]	3502	attribute_name_list: // GCC
	3503	attribute_name
	3504	\| attribute_name_list ',' attribute_name
[c0aa336]	3505	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3506	;
[b87a5ed]	3507
[44a81853]	3508	attribute_name: // GCC
[4d51835]	3509	// empty
[44a81853]	3510	{ $$ = nullptr; }
	3511	\| attr_name
	3512	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3513	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3514	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3515	;
[b87a5ed]	3516
[44a81853]	3517	attr_name: // GCC
[12f1156]	3518	identifier_or_type_name
[114014c]	3519	\| FALLTHROUGH
	3520	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3521	\| CONST
[9ff56e7]	3522	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3523	;
[51b73452]	3524
[c11e31c]	3525	// ============================================================================
[de62360d]	3526	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3527	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3528	// in:
[c11e31c]	3529	//
[b87a5ed]	3530	// int (*f())[10] { ... };
	3531	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3532	//
[de62360d]	3533	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3534	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3535	// ============================================================================
	3536
	3537	// ----------------------------------------------------------------------------
[de62360d]	3538	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3539	// to define a variable or function prototype, e.g.:
[c11e31c]	3540	//
[b87a5ed]	3541	// valid declaration invalid definition
	3542	// ----------------- ------------------
[4d51835]	3543	// int f; int f {}
	3544	// int f; int f {}
[b87a5ed]	3545	// int f[10]; int f[10] {}
[4d51835]	3546	// int (f)(int); int (f)(int) {}
[c11e31c]	3547	//
[de62360d]	3548	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3549	// variable_declarator and function_declarator.
[c11e31c]	3550	// ----------------------------------------------------------------------------
	3551
[de62360d]	3552	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3553	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3554
[5e25953]	3555	paren_identifier:
[e16eb460]	3556	identifier_at
[5e25953]	3557	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3558	\| '?' identifier
[daa4cc1]	3559	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3560	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3561	\| '(' paren_identifier ')' // redundant parenthesis
	3562	{ $$ = $2; }
	3563	;
	3564
[51b73452]	3565	variable_declarator:
[4d51835]	3566	paren_identifier attribute_list_opt
[1db21619]	3567	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3568	\| variable_ptr
	3569	\| variable_array attribute_list_opt
[1db21619]	3570	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3571	\| variable_function attribute_list_opt
[1db21619]	3572	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3573	;
[51b73452]	3574
	3575	variable_ptr:
[dd51906]	3576	ptrref_operator variable_declarator
[a5f9444]	3577	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3578	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3579	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3580	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3581	{ $$ = $2->addQualifiers( $4 ); }
	3582	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3583	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3584	;
[51b73452]	3585
	3586	variable_array:
[4d51835]	3587	paren_identifier array_dimension
	3588	{ $$ = $1->addArray( $2 ); }
	3589	\| '(' variable_ptr ')' array_dimension
	3590	{ $$ = $2->addArray( $4 ); }
[5e25953]	3591	\| '(' attribute_list variable_ptr ')' array_dimension
	3592	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3593	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3594	{ $$ = $2->addArray( $4 ); }
[5e25953]	3595	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3596	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3597	\| '(' variable_array ')' // redundant parenthesis
	3598	{ $$ = $2; }
[5e25953]	3599	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3600	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3601	;
[51b73452]	3602
	3603	variable_function:
[647e2ea]	3604	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3605	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3606	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3607	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3608	\| '(' variable_function ')' // redundant parenthesis
	3609	{ $$ = $2; }
[5e25953]	3610	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3611	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3612	;
[51b73452]	3613
[c6b1105]	3614	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3615	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3616	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3617
	3618	function_declarator:
[4d51835]	3619	function_no_ptr attribute_list_opt
[1db21619]	3620	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3621	\| function_ptr
	3622	\| function_array attribute_list_opt
[1db21619]	3623	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3624	;
[51b73452]	3625
	3626	function_no_ptr:
[647e2ea]	3627	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3628	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3629	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3630	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3631	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3632	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3633	\| '(' function_no_ptr ')' // redundant parenthesis
	3634	{ $$ = $2; }
[5e25953]	3635	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3636	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3637	;
[51b73452]	3638
	3639	function_ptr:
[dd51906]	3640	ptrref_operator function_declarator
[a5f9444]	3641	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3642	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3643	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3644	\| '(' function_ptr ')' attribute_list_opt
	3645	{ $$ = $2->addQualifiers( $4 ); }
	3646	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3647	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3648	;
[51b73452]	3649
	3650	function_array:
[4d51835]	3651	'(' function_ptr ')' array_dimension
	3652	{ $$ = $2->addArray( $4 ); }
[5e25953]	3653	\| '(' attribute_list function_ptr ')' array_dimension
	3654	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3655	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3656	{ $$ = $2->addArray( $4 ); }
[5e25953]	3657	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3658	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3659	\| '(' function_array ')' // redundant parenthesis
	3660	{ $$ = $2; }
[5e25953]	3661	\| '(' attribute_list function_array ')' // redundant parenthesis
	3662	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3663	;
[51b73452]	3664
[c0aa336]	3665	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3666	//
	3667	// f( a, b, c ) int a, *b, c[]; {}
	3668	//
	3669	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3670	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3671
[c0aa336]	3672	KR_function_declarator:
	3673	KR_function_no_ptr
	3674	\| KR_function_ptr
	3675	\| KR_function_array
[4d51835]	3676	;
[51b73452]	3677
[c0aa336]	3678	KR_function_no_ptr:
[4d51835]	3679	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3680	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3681	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3682	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3683	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3684	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3685	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3686	{ $$ = $2; }
[5e25953]	3687	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3688	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3689	;
[51b73452]	3690
[c0aa336]	3691	KR_function_ptr:
	3692	ptrref_operator KR_function_declarator
[a5f9444]	3693	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3694	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3695	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3696	\| '(' KR_function_ptr ')'
[4d51835]	3697	{ $$ = $2; }
[5e25953]	3698	\| '(' attribute_list KR_function_ptr ')'
	3699	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3700	;
[51b73452]	3701
[c0aa336]	3702	KR_function_array:
	3703	'(' KR_function_ptr ')' array_dimension
[4d51835]	3704	{ $$ = $2->addArray( $4 ); }
[5e25953]	3705	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3706	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3707	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3708	{ $$ = $2->addArray( $4 ); }
[5e25953]	3709	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3710	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3711	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3712	{ $$ = $2; }
[5e25953]	3713	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3714	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3715	;
[51b73452]	3716
[1f771fc]	3717	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3718	//
[b87a5ed]	3719	// typedef int foo;
	3720	// {
	3721	// int foo; // redefine typedef name in new scope
	3722	// }
[51b73452]	3723
[2871210]	3724	paren_type:
[f9c3100]	3725	typedef_name
[c4f68dc]	3726	{
[f9c3100]	3727	// hide type name in enclosing scope by variable name
[71a422a]	3728	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3729	}
[2871210]	3730	\| '(' paren_type ')'
[4d51835]	3731	{ $$ = $2; }
	3732	;
[51b73452]	3733
[5e25953]	3734	variable_type_redeclarator:
	3735	paren_type attribute_list_opt
	3736	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3737	\| variable_type_ptr
	3738	\| variable_type_array attribute_list_opt
[5e25953]	3739	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3740	\| variable_type_function attribute_list_opt
[5e25953]	3741	{ $$ = $1->addQualifiers( $2 ); }
	3742	;
	3743
[1f771fc]	3744	variable_type_ptr:
[c6b1105]	3745	ptrref_operator variable_type_redeclarator
[a5f9444]	3746	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3747	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3748	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3749	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3750	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3751	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3752	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3753	;
[51b73452]	3754
[1f771fc]	3755	variable_type_array:
[2871210]	3756	paren_type array_dimension
[4d51835]	3757	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3758	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3759	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3760	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3761	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3762	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3763	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3764	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3765	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3766	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3767	{ $$ = $2; }
[1f771fc]	3768	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3769	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3770	;
[51b73452]	3771
[1f771fc]	3772	variable_type_function:
[647e2ea]	3773	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3774	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3775	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3776	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3777	\| '(' variable_type_function ')' // redundant parenthesis
	3778	{ $$ = $2; }
	3779	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3780	{ $$ = $3->addQualifiers( $2 ); }
	3781	;
	3782
	3783	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3784	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3785	// arrays and functions.
	3786
	3787	function_type_redeclarator:
	3788	function_type_no_ptr attribute_list_opt
	3789	{ $$ = $1->addQualifiers( $2 ); }
	3790	\| function_type_ptr
	3791	\| function_type_array attribute_list_opt
	3792	{ $$ = $1->addQualifiers( $2 ); }
	3793	;
	3794
	3795	function_type_no_ptr:
[647e2ea]	3796	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3797	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3798	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3799	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3800	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3801	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3802	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3803	{ $$ = $2; }
[1f771fc]	3804	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3805	{ $$ = $3->addQualifiers( $2 ); }
	3806	;
	3807
	3808	function_type_ptr:
	3809	ptrref_operator function_type_redeclarator
	3810	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3811	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3812	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3813	\| '(' function_type_ptr ')' attribute_list_opt
	3814	{ $$ = $2->addQualifiers( $4 ); }
	3815	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3816	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3817	;
	3818
	3819	function_type_array:
	3820	'(' function_type_ptr ')' array_dimension
	3821	{ $$ = $2->addArray( $4 ); }
	3822	\| '(' attribute_list function_type_ptr ')' array_dimension
	3823	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3824	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3825	{ $$ = $2->addArray( $4 ); }
	3826	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3827	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3828	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3829	{ $$ = $2; }
[1f771fc]	3830	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3831	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3832	;
[51b73452]	3833
[c0aa336]	3834	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3835	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3836	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3837	// pointers to arrays and functions.
[51b73452]	3838
	3839	identifier_parameter_declarator:
[4d51835]	3840	paren_identifier attribute_list_opt
[1db21619]	3841	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3842	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3843	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3844	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3845	\| identifier_parameter_ptr
	3846	\| identifier_parameter_array attribute_list_opt
[1db21619]	3847	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3848	\| identifier_parameter_function attribute_list_opt
[1db21619]	3849	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3850	;
[51b73452]	3851
	3852	identifier_parameter_ptr:
[dd51906]	3853	ptrref_operator identifier_parameter_declarator
[a5f9444]	3854	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3855	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3856	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3857	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3858	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3859	;
[51b73452]	3860
	3861	identifier_parameter_array:
[4d51835]	3862	paren_identifier array_parameter_dimension
	3863	{ $$ = $1->addArray( $2 ); }
	3864	\| '(' identifier_parameter_ptr ')' array_dimension
	3865	{ $$ = $2->addArray( $4 ); }
	3866	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3867	{ $$ = $2->addArray( $4 ); }
	3868	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3869	{ $$ = $2; }
	3870	;
[51b73452]	3871
	3872	identifier_parameter_function:
[647e2ea]	3873	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3874	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3875	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3876	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3877	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3878	{ $$ = $2; }
	3879	;
[b87a5ed]	3880
[de62360d]	3881	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3882	// e.g.:
[c11e31c]	3883	//
[b87a5ed]	3884	// typedef int foo;
[114014c]	3885	// forall( otype T ) struct foo;
[b87a5ed]	3886	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3887	//
[c0aa336]	3888	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3889
[2871210]	3890	type_parameter_redeclarator:
[f9c3100]	3891	typedef_name attribute_list_opt
[1db21619]	3892	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3893	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3894	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3895	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3896	\| type_parameter_ptr
	3897	\| type_parameter_array attribute_list_opt
[1db21619]	3898	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3899	\| type_parameter_function attribute_list_opt
[1db21619]	3900	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3901	;
[51b73452]	3902
[f9c3100]	3903	typedef_name:
[4d51835]	3904	TYPEDEFname
[7fdb94e1]	3905	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3906	\| TYPEGENname
[7fdb94e1]	3907	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3908	;
[51b73452]	3909
[2871210]	3910	type_parameter_ptr:
[dd51906]	3911	ptrref_operator type_parameter_redeclarator
[a5f9444]	3912	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3913	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3914	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3915	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3916	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3917	;
[51b73452]	3918
[2871210]	3919	type_parameter_array:
[f9c3100]	3920	typedef_name array_parameter_dimension
[4d51835]	3921	{ $$ = $1->addArray( $2 ); }
[2871210]	3922	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3923	{ $$ = $2->addArray( $4 ); }
	3924	;
[51b73452]	3925
[2871210]	3926	type_parameter_function:
[7e13b11]	3927	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3928	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3929	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3930	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3931	;
[b87a5ed]	3932
[de62360d]	3933	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3934	// which the type applies, e.g.:
[c11e31c]	3935	//
[b87a5ed]	3936	// sizeof( int );
[c0aa336]	3937	// sizeof( int * );
[b87a5ed]	3938	// sizeof( int [10] );
[c0aa336]	3939	// sizeof( int (*)() );
	3940	// sizeof( int () );
[c11e31c]	3941	//
[de62360d]	3942	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3943	// and functions versus pointers to arrays and functions.
[51b73452]	3944
	3945	abstract_declarator:
[4d51835]	3946	abstract_ptr
	3947	\| abstract_array attribute_list_opt
[1db21619]	3948	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3949	\| abstract_function attribute_list_opt
[1db21619]	3950	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3951	;
[51b73452]	3952
	3953	abstract_ptr:
[dd51906]	3954	ptrref_operator
[a5f9444]	3955	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3956	\| ptrref_operator type_qualifier_list
[ce8c12f]	3957	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3958	\| ptrref_operator abstract_declarator
[a5f9444]	3959	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3960	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3961	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3962	\| '(' abstract_ptr ')' attribute_list_opt
	3963	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3964	;
[51b73452]	3965
	3966	abstract_array:
[4d51835]	3967	array_dimension
	3968	\| '(' abstract_ptr ')' array_dimension
	3969	{ $$ = $2->addArray( $4 ); }
	3970	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3971	{ $$ = $2->addArray( $4 ); }
	3972	\| '(' abstract_array ')' // redundant parenthesis
	3973	{ $$ = $2; }
	3974	;
[51b73452]	3975
	3976	abstract_function:
[7e13b11]	3977	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3978	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3979	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3980	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3981	\| '(' abstract_function ')' // redundant parenthesis
	3982	{ $$ = $2; }
	3983	;
[51b73452]	3984
	3985	array_dimension:
[4d51835]	3986	// Only the first dimension can be empty.
[2871210]	3987	'[' ']'
[a5f9444]	3988	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	3989	\| '[' ']' multi_array_dimension
[a5f9444]	3990	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	3991	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	3992	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	3993	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	3994	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	3995
	3996	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	3997	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	3998
[d41735a]	3999	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	4000	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	4001	\| multi_array_dimension
	4002	;
[51b73452]	4003
[647e2ea]	4004	// array_dimension_list:
	4005	// assignment_expression
	4006	// \| array_dimension_list ',' assignment_expression
	4007	// ;
	4008
[d41735a]	4009	array_type_list:
	4010	basic_type_name
[bb7422a]	4011	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4012	\| type_name
[bb7422a]	4013	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4014	\| assignment_expression upupeq assignment_expression
	4015	\| array_type_list ',' basic_type_name
[b93c544]	4016	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4017	\| array_type_list ',' type_name
[b93c544]	4018	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4019	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4020	;
	4021
	4022	upupeq:
	4023	'~'
	4024	{ $$ = OperKinds::LThan; }
	4025	\| ErangeUpEq
	4026	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4027	;
[d41735a]	4028
[51b73452]	4029	multi_array_dimension:
[c0a33d2]	4030	'[' push assignment_expression pop ']'
[a5f9444]	4031	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	4032	\| '[' push '*' pop ']' // C99
[4d51835]	4033	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	4034	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	4035	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	4036	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	4037	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4038	;
[51b73452]	4039
[c11e31c]	4040	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4041	// identifier to which the type applies, e.g.:
	4042	//
[c0aa336]	4043	// int f( int ); // not handled here
	4044	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4045	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4046	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4047	//
[de62360d]	4048	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4049	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4050	// parenthesis around a typedef name:
[c0aa336]	4051	//
	4052	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4053	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4054	// not as redundant parentheses around the identifier."
	4055	//
	4056	// For example:
	4057	//
	4058	// typedef float T;
	4059	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4060	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4061	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4062	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4063	//
	4064	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4065	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4066	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4067	// functions.
[51b73452]	4068
[59c7e3e]	4069	abstract_parameter_declarator_opt:
	4070	// empty
	4071	{ $$ = nullptr; }
	4072	\| abstract_parameter_declarator
	4073	;
	4074
[51b73452]	4075	abstract_parameter_declarator:
[4d51835]	4076	abstract_parameter_ptr
[b6b3c42]	4077	\| '&' MUTEX attribute_list_opt
[446740a]	4078	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4079	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4080	\| abstract_parameter_array attribute_list_opt
[1db21619]	4081	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4082	\| abstract_parameter_function attribute_list_opt
[1db21619]	4083	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4084	;
[51b73452]	4085
	4086	abstract_parameter_ptr:
[dd51906]	4087	ptrref_operator
[ce8c12f]	4088	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4089	\| ptrref_operator type_qualifier_list
[ce8c12f]	4090	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4091	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4092	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4093	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4094	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4095	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4096	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4097	;
[51b73452]	4098
	4099	abstract_parameter_array:
[4d51835]	4100	array_parameter_dimension
	4101	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4102	{ $$ = $2->addArray( $4 ); }
	4103	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4104	{ $$ = $2->addArray( $4 ); }
	4105	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4106	{ $$ = $2; }
	4107	;
[51b73452]	4108
	4109	abstract_parameter_function:
[7e13b11]	4110	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4111	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4112	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4113	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4114	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4115	{ $$ = $2; }
	4116	;
[51b73452]	4117
	4118	array_parameter_dimension:
[4d51835]	4119	// Only the first dimension can be empty or have qualifiers.
	4120	array_parameter_1st_dimension
	4121	\| array_parameter_1st_dimension multi_array_dimension
	4122	{ $$ = $1->addArray( $2 ); }
	4123	\| multi_array_dimension
	4124	;
[51b73452]	4125
[c11e31c]	4126	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4127	//
[de62360d]	4128	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4129	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4130
	4131	array_parameter_1st_dimension:
[2871210]	4132	'[' ']'
[a5f9444]	4133	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4134	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4135	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4136	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4137	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4138	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4139	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4140	\| '[' push type_qualifier_list assignment_expression pop ']'
	4141	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4142	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4143	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4144	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4145	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4146	;
[b87a5ed]	4147
[c0aa336]	4148	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4149	//
[71a422a]	4150	// struct S {
	4151	// int;
	4152	// int *;
	4153	// int [10];
	4154	// int (*)();
	4155	// };
[51b73452]	4156
	4157	variable_abstract_declarator:
[4d51835]	4158	variable_abstract_ptr
	4159	\| variable_abstract_array attribute_list_opt
[1db21619]	4160	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4161	\| variable_abstract_function attribute_list_opt
[1db21619]	4162	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4163	;
[51b73452]	4164
	4165	variable_abstract_ptr:
[dd51906]	4166	ptrref_operator
[a5f9444]	4167	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4168	\| ptrref_operator type_qualifier_list
[ce8c12f]	4169	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4170	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4171	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4172	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4173	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4174	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4175	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4176	;
[51b73452]	4177
	4178	variable_abstract_array:
[4d51835]	4179	array_dimension
	4180	\| '(' variable_abstract_ptr ')' array_dimension
	4181	{ $$ = $2->addArray( $4 ); }
	4182	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4183	{ $$ = $2->addArray( $4 ); }
	4184	\| '(' variable_abstract_array ')' // redundant parenthesis
	4185	{ $$ = $2; }
	4186	;
[51b73452]	4187
	4188	variable_abstract_function:
[647e2ea]	4189	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4190	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4191	\| '(' variable_abstract_function ')' // redundant parenthesis
	4192	{ $$ = $2; }
	4193	;
[b87a5ed]	4194
[de62360d]	4195	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4196	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4197
[c0aa336]	4198	cfa_identifier_parameter_declarator_tuple: // CFA
	4199	cfa_identifier_parameter_declarator_no_tuple
	4200	\| cfa_abstract_tuple
	4201	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4202	{ $$ = $2->addQualifiers( $1 ); }
	4203	;
[b87a5ed]	4204
[c0aa336]	4205	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4206	cfa_identifier_parameter_ptr
	4207	\| cfa_identifier_parameter_array
[4d51835]	4208	;
[b87a5ed]	4209
[c0aa336]	4210	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4211	// No SUE declaration in parameter list.
	4212	ptrref_operator type_specifier_nobody
[a5f9444]	4213	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4214	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4215	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4216	\| ptrref_operator cfa_abstract_function
[a5f9444]	4217	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4218	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4219	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4220	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4221	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4222	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4223	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4224	;
[b87a5ed]	4225
[c0aa336]	4226	cfa_identifier_parameter_array: // CFA
[de62360d]	4227	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4228	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4229	'[' ']' type_specifier_nobody
[a5f9444]	4230	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4231	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4232	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4233	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4234	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4235	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4236	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4237	\| multi_array_dimension type_specifier_nobody
[4d51835]	4238	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4239
[c0aa336]	4240	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4241	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4242	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4243	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4244	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4245	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4246	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4247	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4248	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4249	{ $$ = $2->addNewArray( $1 ); }
	4250	;
[51b73452]	4251
[c0aa336]	4252	cfa_array_parameter_1st_dimension:
[c0a33d2]	4253	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4254	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4255	\| '[' push type_qualifier_list assignment_expression pop ']'
	4256	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4257	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4258	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4259	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4260	// appear in this context.
[c0a33d2]	4261	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4262	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4263	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4264	;
[b87a5ed]	4265
[de62360d]	4266	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4267	// identifier to which the type applies, e.g.:
[c11e31c]	4268	//
[b87a5ed]	4269	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4270	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4271	//
	4272	// These rules need LR(3):
	4273	//
[c0aa336]	4274	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4275	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4276	//
	4277	// since a function return type can be syntactically identical to a tuple type:
	4278	//
[b87a5ed]	4279	// [int, int] t;
	4280	// [int, int] f( int );
[c11e31c]	4281	//
[2871210]	4282	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4283	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4284	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4285	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4286
[c0aa336]	4287	cfa_abstract_declarator_tuple: // CFA
	4288	cfa_abstract_tuple
	4289	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4290	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4291	\| cfa_abstract_declarator_no_tuple
[4d51835]	4292	;
[b87a5ed]	4293
[c0aa336]	4294	cfa_abstract_declarator_no_tuple: // CFA
	4295	cfa_abstract_ptr
	4296	\| cfa_abstract_array
[4d51835]	4297	;
[b87a5ed]	4298
[c0aa336]	4299	cfa_abstract_ptr: // CFA
[dd51906]	4300	ptrref_operator type_specifier
[a5f9444]	4301	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4302	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4303	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4304	\| ptrref_operator cfa_abstract_function
[a5f9444]	4305	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4306	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4307	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4308	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4309	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4310	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4311	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4312	;
[b87a5ed]	4313
[c0aa336]	4314	cfa_abstract_array: // CFA
[de62360d]	4315	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4316	// empty (void) function return type.
[2871210]	4317	'[' ']' type_specifier
[2298f728]	4318	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4319	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4320	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4321	\| multi_array_dimension type_specifier
	4322	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4323	\| '[' ']' cfa_abstract_ptr
[2298f728]	4324	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4325	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4326	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4327	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4328	{ $$ = $2->addNewArray( $1 ); }
	4329	;
[b87a5ed]	4330
[c0aa336]	4331	cfa_abstract_tuple: // CFA
[c0a33d2]	4332	'[' push cfa_abstract_parameter_list pop ']'
	4333	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4334	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4335	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4336	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4337	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4338	;
[b87a5ed]	4339
[c0aa336]	4340	cfa_abstract_function: // CFA
[647e2ea]	4341	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4342	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4343	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4344	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4345	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4346	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4347	;
[b87a5ed]	4348
[de62360d]	4349	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4350	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4351	//
[de62360d]	4352	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4353	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4354	//
	4355	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4356	// prototype-format parameter type declarators) is an obsolescent feature."
	4357	//
[de62360d]	4358	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4359	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4360
[e1d66c84]	4361	// ********************** MISCELLANEOUS ******************************
[51b73452]	4362
[b87a5ed]	4363	comma_opt: // redundant comma
[4d51835]	4364	// empty
	4365	\| ','
	4366	;
[51b73452]	4367
[5a51798]	4368	default_initializer_opt:
[4d51835]	4369	// empty
[58dd019]	4370	{ $$ = nullptr; }
[4d51835]	4371	\| '=' assignment_expression
	4372	{ $$ = $2; }
	4373	;
[51b73452]	4374
	4375	%%
[a1c9ddd]	4376
[c11e31c]	4377	// ----end of grammar----
[51b73452]	4378
[c11e31c]	4379	// Local Variables: //
[b87a5ed]	4380	// mode: c++ //
[de62360d]	4381	// tab-width: 4 //
[7e13b11]	4382	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4383	// End: //

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