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parser.yy@ e051c8e

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Last change on this file since e051c8e was d96f7c4, checked in by Peter A. Buhr <pabuhr@…>, 9 months ago
expunge fallthru keyword and replace its usages with fallthrough
Property mode set to `100644`
File size: 179.9 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
[d96f7c4]	12	// Last Modified On : Fri Jan 17 14:35:08 2025
	13	// Update Count : 6935
[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
[dd54139]	26	// The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed. Most of the syntactic extensions from
	27	// ANSI90 to ANSI11 C are marked with the comment "C99/C11".
[f9c3100]	28
[e16eb460]	29	// This grammar also has two levels of extensions. The first extensions cover most of the GCC C extensions. All of the
[9380add]	30	// syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall (CFA), which
	31	// fixes several of C's outstanding problems and extends C with many modern language concepts. All of the syntactic
	32	// extensions for CFA C are marked with the comment "CFA".
[51b73452]	33
	34	%{
[ec3f9c8]	35	#define YYDEBUG_LEXER_TEXT( yylval ) // lexer loads this up each time
[b87a5ed]	36	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	37	#define YYERROR_VERBOSE // more information in syntax errors
[51b73452]	38
	39	#undef __GNUC_MINOR__
	40
	41	#include <cstdio>
[9feb34b]	42	#include <sstream>
[51b73452]	43	#include <stack>
[9ed4f94]	44	using namespace std;
	45
[c92bdcc]	46	#include "DeclarationNode.hpp" // for DeclarationNode, ...
	47	#include "ExpressionNode.hpp" // for ExpressionNode, ...
	48	#include "InitializerNode.hpp" // for InitializerNode, ...
	49	#include "ParserTypes.hpp"
	50	#include "StatementNode.hpp" // for build_...
	51	#include "TypedefTable.hpp"
	52	#include "TypeData.hpp"
[7a780ad]	53	#include "AST/Type.hpp" // for BasicType, BasicKind
[c92bdcc]	54	#include "Common/SemanticError.hpp" // error_str
	55	#include "Common/Utility.hpp" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b73452]	56
[ae2f2ae]	57	// lex uses __null in a boolean context, it's fine.
[0bd46fd]	58	#ifdef __clang__
[09f34a84]	59	#pragma GCC diagnostic ignored "-Wparentheses-equality"
[0bd46fd]	60	#endif
[ae2f2ae]	61
[cbaee0d]	62	extern DeclarationNode * parseTree;
[bb7422a]	63	extern ast::Linkage::Spec linkage;
[0da3e2c]	64	extern TypedefTable typedefTable;
	65
[bb7422a]	66	stack<ast::Linkage::Spec> linkageStack;
[7bf7fb9]	67
[15697ff]	68	bool appendStr( string & to, string & from ) {
	69	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	70	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	71	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	72	// easier to let the C compiler handle this case.
	73	//
	74	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	75	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
[efc8f3e]	76	// e.g., u"a" U"b" L"c" is disallowed.
[15697ff]	77
	78	if ( from[0] != '"' ) { // encoding ?
	79	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	80	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	81	yyerror( "non-matching string encodings for string-literal concatenation" );
	82	return false; // parse error, must call YYERROR in action
[ea0c5e3]	83	} else if ( from[1] == '8' ) {
	84	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	85	} // if
	86	} else {
[ea0c5e3]	87	if ( from[1] == '8' ) { // move encoding to start
	88	to = "u8" + to;
	89	from.erase( 0, 1 ); // remove 2nd encoding
	90	} else {
	91	to = from[0] + to;
	92	} // if
[15697ff]	93	} // if
	94	from.erase( 0, 1 ); // remove 2nd encoding
	95	} // if
	96	to += " " + from; // concatenated into single string
	97	return true;
[7bf7fb9]	98	} // appendStr
[c0aa336]	99
[d8454b9]	100	DeclarationNode * distAttr( DeclarationNode * typeSpec, DeclarationNode * declList ) {
[4eb3a7c5]	101	// Distribute type specifier across all declared variables, e.g., static, const, __attribute__.
[d8454b9]	102	assert( declList );
	103
[4eb3a7c5]	104	// Do not distribute attributes for aggregates because the attributes surrounding the aggregate belong it not the
	105	// variables in the declaration list, e.g.,
	106	//
	107	// struct __attribute__(( aligned(128) )) S { ...
	108	// } v1 __attribute__(( aligned(64) )), v2 __attribute__(( aligned(32) )), v3;
	109	// struct S v4;
	110	//
	111	// v1 => 64, v2 =>32, v3 => 128, v2 => 128
	112	//
	113	// Anonymous aggregates are a special case because there is no aggregate to bind the attribute to; hence it floats
	114	// to the declaration list.
	115	//
	116	// struct __attribute__(( aligned(128) )) /anonymous / { ... } v1;
	117	//
	118	// v1 => 128
	119
	120	bool copyattr = ! (typeSpec->type && typeSpec->type->kind == TypeData::Aggregate && ! typeSpec->type->aggregate.anon );
	121
	122	// addType copies the type information for the aggregate instances from typeSpec into cl's aggInst.aggregate.
	123	DeclarationNode * cl = (new DeclarationNode)->addType( typeSpec ); // typeSpec IS DELETED!!!
	124
[647e2ea]	125	// Start at second variable in declaration list and clone the type specifiers for each variable.
[44adf1b]	126	for ( DeclarationNode * cur = declList->next ; cur != nullptr; cur = cur->next ) {
[4eb3a7c5]	127	cl->cloneBaseType( cur, copyattr ); // cur is modified
[c0aa336]	128	} // for
[4eb3a7c5]	129
	130	// Add first variable in declaration list with hidden type information in aggInst.aggregate, which is used by
	131	// extractType to recover the type for the aggregate instances.
	132	declList->addType( cl, copyattr ); // cl IS DELETED!!!
[c0aa336]	133	return declList;
	134	} // distAttr
	135
	136	void distExt( DeclarationNode * declaration ) {
	137	// distribute EXTENSION across all declarations
[44adf1b]	138	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[c0aa336]	139	iter->set_extension( true );
	140	} // for
	141	} // distExt
[fdca7c6]	142
[e07caa2]	143	void distInl( DeclarationNode * declaration ) {
[5695645]	144	// distribute INLINE across all declarations
[44adf1b]	145	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[e07caa2]	146	iter->set_inLine( true );
	147	} // for
	148	} // distInl
	149
[4c3ee8d]	150	void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) {
[284da8c]	151	// distribute qualifiers across all non-variable declarations in a distribution statemement
[44adf1b]	152	for ( DeclarationNode * iter = declaration ; iter != nullptr ; iter = iter->next ) {
[284da8c]	153	// SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since
	154	// addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To
	155	// get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to
	156	// be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers.
	157	DeclarationNode * clone = qualifiers->clone();
	158	if ( qualifiers->type ) { // forall clause ? (handles SC)
	159	if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ?
	160	swap( clone->type->forall, iter->type->aggregate.params );
	161	iter->addQualifiers( clone );
	162	} else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ?
	163	// Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together.
	164	DeclarationNode newnode;
	165	swap( newnode.type, iter->type->aggInst.aggregate );
	166	swap( clone->type->forall, newnode.type->aggregate.params );
	167	newnode.addQualifiers( clone );
	168	swap( newnode.type, iter->type->aggInst.aggregate );
	169	} else if ( iter->type->kind == TypeData::Function ) { // routines ?
	170	swap( clone->type->forall, iter->type->forall );
	171	iter->addQualifiers( clone );
	172	} // if
	173	} else { // just SC qualifiers
	174	iter->addQualifiers( clone );
	175	} // if
[4c3ee8d]	176	} // for
[284da8c]	177	delete qualifiers;
	178	} // distQual
[4c3ee8d]	179
[c38ae92]	180	// There is an ambiguity for inline generic-routine return-types and generic routines.
	181	// forall( otype T ) struct S { int i; } bar( T ) {}
	182	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	183	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e1]	184	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	185	// forall( otype T ) struct S { int T; };
	186	// forall( otype W ) bar( W ) {}
[c38ae92]	187
	188	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e1]	189	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	190	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	191	declSpec->type->aggregate.params = nullptr;
	192	} // if
	193	} // rebindForall
	194
[60a8062]	195	string * build_postfix_name( string * name ) {
	196	name = string("__postfix_func_") + name;
	197	return name;
[dc7db63]	198	} // build_postfix_name
	199
[f7e4db27]	200	DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) {
[a16f2b6]	201	if ( fieldList == nullptr ) {
	202	if ( !( typeSpec->type && typeSpec->type->kind == TypeData::Aggregate ) ) { // int; no fieldList
[d8454b9]	203	// printf( "fieldDecl1 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[a16f2b6]	204	SemanticWarning( yylloc, Warning::SuperfluousDecl );
[f7e4db27]	205	return nullptr;
	206	} // if
[d8454b9]	207	// printf( "fieldDecl2 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[a16f2b6]	208	fieldList = DeclarationNode::newName( nullptr ); // struct S { ... } no fieldList
[f7e4db27]	209	} // if
[d8454b9]	210
	211	// printf( "fieldDecl3 typeSpec %p\n", typeSpec ); typeSpec->print( std::cout, 0 );
[4eb3a7c5]	212	DeclarationNode * temp = distAttr( typeSpec, fieldList ); // mark all fields in list
[d8454b9]	213	// printf( "fieldDecl4 temp %p\n", temp ); temp->print( std::cout, 0 );
	214	return temp;
[f7e4db27]	215	} // fieldDecl
	216
[bb7422a]	217	#define NEW_ZERO new ExpressionNode( build_constantInteger( yylloc, *new string( "0" ) ) )
	218	#define NEW_ONE new ExpressionNode( build_constantInteger( yylloc, *new string( "1" ) ) )
[52be5948]	219	#define UPDOWN( compop, left, right ) (compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? left : right)
[253d0b4]	220	#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]	221	#define MISSING_LOW "illegal syntax, missing low value for ascanding range so index is uninitialized."
	222	#define MISSING_HIGH "illegal syntax, missing high value for descending range so index is uninitialized."
[253d0b4]	223
[089b39e1]	224	static ForCtrl * makeForCtrl( const CodeLocation & location, DeclarationNode * init, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1cdc052]	225	// Wrap both comp/inc if they are non-null.
[bb7422a]	226	if ( comp ) comp = new ExpressionNode( build_binary_val( location,
[1cdc052]	227	compop,
[bb7422a]	228	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	229	comp ) );
[bb7422a]	230	if ( inc ) inc = new ExpressionNode( build_binary_val( location,
[1cdc052]	231	// choose += or -= for upto/downto
	232	compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? OperKinds::PlusAssn : OperKinds::MinusAssn,
[bb7422a]	233	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	234	inc ) );
	235	// The StatementNode call frees init->name, it must happen later.
	236	return new ForCtrl( new StatementNode( init ), comp, inc );
	237	}
	238
[089b39e1]	239	ForCtrl * forCtrl( const CodeLocation & location, DeclarationNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[d78c238]	240	if ( index->initializer ) {
[253d0b4]	241	SemanticError( yylloc, "illegal syntax, direct initialization disallowed. Use instead: type var; initialization ~ comparison ~ increment." );
[d78c238]	242	} // if
	243	if ( index->next ) {
[253d0b4]	244	SemanticError( yylloc, "illegal syntax, multiple loop indexes disallowed in for-loop declaration." );
[d78c238]	245	} // if
[1cdc052]	246	DeclarationNode * initDecl = index->addInitializer( new InitializerNode( start ) );
[bb7422a]	247	return makeForCtrl( location, initDecl, compop, comp, inc );
[d78c238]	248	} // forCtrl
	249
[089b39e1]	250	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, string * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	251	ast::ConstantExpr * constant = dynamic_cast<ast::ConstantExpr *>(type->expr.get());
	252	if ( constant && (constant->rep == "0" \|\| constant->rep == "1") ) {
[7a780ad]	253	type = new ExpressionNode( new ast::CastExpr( location, maybeMoveBuild(type), new ast::BasicType( ast::BasicKind::SignedInt ) ) );
[0982a05]	254	} // if
[1cdc052]	255	DeclarationNode * initDecl = distAttr(
	256	DeclarationNode::newTypeof( type, true ),
	257	DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) )
	258	);
[bb7422a]	259	return makeForCtrl( location, initDecl, compop, comp, inc );
[f271bdd]	260	} // forCtrl
	261
[253d0b4]	262	#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."
	263
[089b39e1]	264	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	265	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index->expr.get()) ) {
	266	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
[f1aeede]	267	} else {
[253d0b4]	268	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[f1aeede]	269	} // if
[f271bdd]	270	} // forCtrl
	271
[6d2b3dc]	272	ForCtrl * enumRangeCtrl( ExpressionNode * index_expr, OperKinds compop, ExpressionNode * range_over_expr, DeclarationNode * type ) {
	273	assert( compop == OperKinds::LEThan \|\| compop == OperKinds::GEThan );
[525f7ad]	274	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index_expr->expr.get()) ) {
[6d2b3dc]	275	DeclarationNode * indexDecl =
	276	DeclarationNode::newName( new std::string(identifier->name) )->addType( type );
[d3aa55e9]	277	return new ForCtrl( new StatementNode( indexDecl ), range_over_expr, compop );
[525f7ad]	278	} else {
[253d0b4]	279	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[525f7ad]	280	} // if
	281	} // enumRangeCtrl
	282
[996c8ed]	283	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[253d0b4]	284	SemanticError( yylloc, "illegal syntax, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
[b1f2007d]	285	"Possible cause is misspelled type name or missing generic parameter.",
	286	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	287	} // IdentifierBeforeIdentifier
	288
	289	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[253d0b4]	290	SemanticError( yylloc, "illegal syntax, identifier \"%s\" cannot appear before a %s.\n"
[b1f2007d]	291	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	292	identifier.c_str(), kind );
[996c8ed]	293	} // IdentifierBeforeType
	294
[24711a3]	295	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	296
[201aeb9]	297	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	298	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	299	if ( N ) { \
	300	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	301	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	302	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	303	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	304	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	305	} else { \
	306	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	307	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	308	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	309	}
[51b73452]	310	%}
	311
[15697ff]	312	%define parse.error verbose
	313
[201aeb9]	314	// Types declaration for productions
[7cf8006]	315
[0982a05]	316	%union {
[6cef439]	317	// A raw token can be used.
[a67b60e]	318	Token tok;
[6cef439]	319
	320	// The general node types hold some generic node or list of nodes.
[a67b60e]	321	DeclarationNode * decl;
[6cef439]	322	InitializerNode * init;
	323	ExpressionNode * expr;
[32d6fdc]	324	StatementNode * stmt;
[6611177]	325	ClauseNode * clause;
[6cef439]	326	TypeData * type;
	327
	328	// Special "nodes" containing compound information.
[569b118]	329	CondCtrl * ifctrl;
	330	ForCtrl * forctrl;
[32d6fdc]	331	LabelNode * labels;
[6cef439]	332
	333	// Various flags and single values that become fields later.
	334	ast::AggregateDecl::Aggregate aggKey;
	335	ast::TypeDecl::Kind tclass;
[32d6fdc]	336	OperKinds oper;
	337	bool is_volatile;
	338	EnumHiding enum_hiding;
	339	ast::ExceptionKind except_kind;
[6cef439]	340	// String passes ownership with it.
	341	std::string * str;
	342
	343	// Narrower node types are used to avoid constant unwrapping.
	344	ast::WaitForStmt * wfs;
	345	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	346	ast::GenericExpr * genexpr;
[a67b60e]	347	}
	348
[bb7422a]	349	// ********************** TERMINAL TOKENS ******************************
[51b73452]	350
[c11e31c]	351	// keywords
[51b73452]	352	%token TYPEDEF
[a7c90d4]	353	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	354	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	355	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	356	%token NORETURN // C11
[51b73452]	357	%token CONST VOLATILE
[b87a5ed]	358	%token RESTRICT // C99
[a7c90d4]	359	%token ATOMIC // C11
[1f652a7]	360	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	361	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	362	%token BOOL COMPLEX IMAGINARY // C99
[c5f69fd]	363	%token INT128 UINT128 FLOAT80 uuFLOAT128 // GCC
	364	%token FLOAT16 FLOAT32 FLOAT32X FLOAT64 FLOAT64X FLOAT128 FLOAT128X // GCC
	365	%token FLOAT32X4 FLOAT64X2 SVFLOAT32 SVFLOAT64 SVBOOL // GCC (ARM)
[15f769c]	366	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	367	%token ZERO_T ONE_T // CFA
[a8ced63]	368	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	369	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	370	%token ENUM STRUCT UNION
[c27fb59]	371	%token EXCEPTION // CFA
[553772b]	372	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	373	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	374	// %token RESUME // CFA
[1f652a7]	375	%token LABEL // GCC
[25744d2]	376	%token SUSPEND // CFA
[b87a5ed]	377	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	378	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[d96f7c4]	379	%token CHOOSE FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	380	%token CORUN COFOR
[4744074]	381	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	382	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	383	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	384
[c11e31c]	385	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	386	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	387	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	388	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[1a8b17a]	389	%token<tok> DIRECTIVE C23_ATTRIBUTE
[1b29996]	390	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	391	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	392	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	393	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	394
[c11e31c]	395	// multi-character operators
[b87a5ed]	396	%token ARROW // ->
	397	%token ICR DECR // ++ --
	398	%token LS RS // << >>
	399	%token LE GE EQ NE // <= >= == !=
	400	%token ANDAND OROR // && \|\|
[647e2ea]	401	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	402
[e5f2a67]	403	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	404	%token PLUSassign MINUSassign // += -=
	405	%token LSassign RSassign // <<= >>=
	406	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	407
[01afd8d]	408	%token ErangeUp ErangeUpEq ErangeDown ErangeDownEq // +~ +~=/~= -~ -~=
[e7aed49]	409	%token ATassign // @=
[097e2b0]	410
[e16eb460]	411	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	412	%type<tok> quasi_keyword
[32d6fdc]	413	%type<expr> string_literal
[ab57786]	414	%type<str> string_literal_list
[51b73452]	415
[71a422a]	416	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	417
[c11e31c]	418	// expressions
[32d6fdc]	419	%type<expr> constant
[71a422a]	420	%type<expr> tuple tuple_expression_list
[32d6fdc]	421	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	422	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	423	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	424	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	425	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	426	%type<expr> logical_AND_expression logical_OR_expression
	427	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	428	%type<expr> comma_expression comma_expression_opt
	429	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[569b118]	430	%type<ifctrl> conditional_declaration
	431	%type<forctrl> for_control_expression for_control_expression_list
[32d6fdc]	432	%type<oper> upupeq updown updowneq downupdowneq
	433	%type<expr> subrange
[c0aa336]	434	%type<decl> asm_name_opt
[71a422a]	435	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	436	%type<labels> label_list
	437	%type<expr> asm_clobbers_list_opt
	438	%type<is_volatile> asm_volatile_opt
	439	%type<expr> handler_predicate_opt
[67d4e37]	440	%type<genexpr> generic_association generic_assoc_list
[51b73452]	441
[c11e31c]	442	// statements
[71a422a]	443	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	444	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	445	%type<stmt> selection_statement
[71a422a]	446	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	447	%type<expr> case_value
[71a422a]	448	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	449	%type<stmt> iteration_statement jump_statement
[71a422a]	450	%type<stmt> expression_statement asm_statement
[32d6fdc]	451	%type<stmt> with_statement
	452	%type<expr> with_clause_opt
[11ab0b4a]	453	%type<stmt> corun_statement cofor_statement
[32d6fdc]	454	%type<stmt> exception_statement
[6611177]	455	%type<clause> handler_clause finally_clause
[32d6fdc]	456	%type<except_kind> handler_key
	457	%type<stmt> mutex_statement
	458	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	459	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	460	%type<wfs> wor_waitfor_clause
[6e1e2d0]	461	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	462
[c11e31c]	463	// declarations
[c0aa336]	464	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[a16f2b6]	465	%type<decl> abstract_parameter_declarator_opt abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array
	466	abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension abstract_parameter_declaration
[51b73452]	467
[e307e12]	468	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	469	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	470
[9997fee]	471	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	472
[32d6fdc]	473	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	474
[84d58c5]	475	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	476	%type<type> basic_type_name_type
	477	%type<type> vtable vtable_opt default_opt
[51b73452]	478
[4040425]	479	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	480
	481	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	482	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	483
[d0ffed1]	484	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	485
[a8ced63]	486	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	487	%type<init> enumerator_value_opt
[51b73452]	488
[3d56d15b]	489	%type<decl> external_definition external_definition_list external_definition_list_opt
	490
	491	%type<decl> exception_declaration
[51b73452]	492
[a16f2b6]	493	%type<decl> field_declaration_list_opt field_declaration field_declaring_list field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	494	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	495
[4d51835]	496	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	497
[d3bc0ad]	498	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	499	%type<decl> identifier_list
[51b73452]	500
[c0aa336]	501	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	502	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	503	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	504
[c0aa336]	505	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	506
[679e644]	507	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	508	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	509
[c0aa336]	510	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	511	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	512
[647e2ea]	513	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	514
[c0aa336]	515	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	516
[b9be000b]	517	%type<decl> c_declaration static_assert
[c0aa336]	518	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	519	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	520
[647e2ea]	521	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	522
[2871210]	523	%type<decl> paren_identifier paren_type
[51b73452]	524
[0da3e2c]	525	%type<decl> storage_class storage_class_list
[51b73452]	526
[d0ffed1]	527	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	528
[5a51798]	529	%type<tclass> type_class new_type_class
[51b73452]	530	%type<decl> type_declarator type_declarator_name type_declaring_list
	531
[6cef439]	532	%type<decl> type_declaration_specifier type_type_specifier
	533	%type<type> type_name typegen_name
[f9c3100]	534	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	535
[1f771fc]	536	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	537	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	538
	539	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	540
[84d58c5]	541	%type<decl> type type_no_function
	542	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	543
[647e2ea]	544	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	545
[6cef439]	546	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	547	%type<type> type_qualifier_name
[f9c3100]	548	%type<decl> type_specifier type_specifier_nobody
[51b73452]	549
[c0aa336]	550	%type<decl> variable_declarator variable_ptr variable_array variable_function
	551	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	552
[f9c3100]	553	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	554
[c11e31c]	555	// initializers
[32d6fdc]	556	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	557
[c11e31c]	558	// designators
[32d6fdc]	559	%type<expr> designator designator_list designation
[51b73452]	560
	561
[65d6de4]	562	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	563	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	564	// if ( C ) S1 else S2
	565	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	566	// Similar issues exit with the waitfor statement.
[51b73452]	567
[9fd9d015]	568	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	569	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	570	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	571	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	572	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	573	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	574	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	575	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	576	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	577	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	578	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	579	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	580	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	582
[51b73452]	583
[65d6de4]	584	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	585	// forall( otype T ) struct Foo { T v; };
	586	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	587	// Foo ( *fp )( int );
	588	// `---' matches start of TYPEGENname '('
[fc20514]	589	// must be:
[a16a7ec]	590	// Foo( int ) ( *fp )( int );
[fc20514]	591	// The same problem occurs here:
	592	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	593	// must be:
	594	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	595
	596	// Order of these lines matters (low-to-high precedence).
	597	%precedence TYPEGENname
[284da8c]	598	%precedence '}'
[65d6de4]	599	%precedence '('
	600
[c786e1d]	601	// %precedence RESUME
	602	// %precedence '{'
	603	// %precedence ')'
	604
[f38e7d7]	605	%locations // support location tracking for error messages
[930f69e]	606
[b87a5ed]	607	%start translation_unit // parse-tree root
[51b73452]	608
	609	%%
[e1d66c84]	610	// ********************** Namespace Management ******************************
[c11e31c]	611
[3d26610]	612	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	613	// which are lexically identical.
[c11e31c]	614	//
[3d26610]	615	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	616	// foo f; // to allow it to appear in this context
[c11e31c]	617	//
[3d26610]	618	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	619	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	620	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	621	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	622	// must be distinguished by the lexical scanner.
[c11e31c]	623	//
[3d26610]	624	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	625	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	626	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	627	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	628	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	629	// This requires distinguishing between type names that are local to the current declaration scope and those that
	630	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	631	//
[3d26610]	632	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	633	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	634	// around the list separator.
	635	//
[71a422a]	636	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	637	// push pop push pop
[51b73452]	638
	639	push:
[ab57786]	640	{ typedefTable.enterScope(); }
[4d51835]	641	;
[51b73452]	642
	643	pop:
[ab57786]	644	{ typedefTable.leaveScope(); }
[4d51835]	645	;
[51b73452]	646
[e1d66c84]	647	// ********************** CONSTANTS ******************************
[51b73452]	648
	649	constant:
[de62360d]	650	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	651	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	652	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	653	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	654	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	655	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	656	;
[51b73452]	657
[5b2edbc]	658	quasi_keyword: // CFA
	659	TIMEOUT
[9fd9d015]	660	\| WAND
[5b2edbc]	661	\| WOR
[9fb1367]	662	\| CATCH
	663	\| RECOVER
	664	\| CATCHRESUME
	665	\| FIXUP
	666	\| FINALLY
[5b2edbc]	667	;
	668
[033ff37]	669	identifier:
[4d51835]	670	IDENTIFIER
[5b2edbc]	671	\| quasi_keyword
[e16eb460]	672	;
	673
	674	identifier_at:
	675	identifier
[679e644]	676	\| '@' // CFA
	677	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	678	;
[51b73452]	679
[12f1156]	680	identifier_or_type_name:
	681	identifier
	682	\| TYPEDEFname
	683	\| TYPEGENname
	684	;
	685
[ab57786]	686	string_literal:
[32d6fdc]	687	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	688	;
	689
[b87a5ed]	690	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	691	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	692	\| string_literal_list STRINGliteral
	693	{
[15697ff]	694	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	695	delete $2; // allocated by lexer
[ab57786]	696	$$ = $1; // conversion from tok to str
[7bf7fb9]	697	}
[4d51835]	698	;
[51b73452]	699
[e1d66c84]	700	// ********************** EXPRESSIONS ******************************
[51b73452]	701
	702	primary_expression:
[4d51835]	703	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	704	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	705	\| quasi_keyword
[bb7422a]	706	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	707	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	708	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	709	\| tuple
[4d51835]	710	\| '(' comma_expression ')'
	711	{ $$ = $2; }
	712	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	713	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	714	\| type_name '.' identifier // CFA, nested type
[6cef439]	715	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	716	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	717	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	718	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	719	{
	720	// add the missing control expression to the GenericExpr and return it
[702e826]	721	$5->control = maybeMoveBuild( $3 );
[d807ca28]	722	$$ = new ExpressionNode( $5 );
	723	}
[c786e1d]	724	// \| RESUME '(' comma_expression ')'
	725	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	726	// \| RESUME '(' comma_expression ')' compound_statement
	727	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	728	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	729	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	730	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	731	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	732	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	733	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	734	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	735	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	736	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	737	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	738	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	739	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	740	;
	741
	742	generic_assoc_list: // C11
[d807ca28]	743	generic_association
[24c3b67]	744	\| generic_assoc_list ',' generic_association
[d807ca28]	745	{
	746	// steal the association node from the singleton and delete the wrapper
[bb7422a]	747	assert( 1 == $3->associations.size() );
	748	$1->associations.push_back( $3->associations.front() );
[d807ca28]	749	delete $3;
	750	$$ = $1;
	751	}
[24c3b67]	752	;
	753
	754	generic_association: // C11
	755	type_no_function ':' assignment_expression
[d807ca28]	756	{
	757	// create a GenericExpr wrapper with one association pair
[bb7422a]	758	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	759	}
[24c3b67]	760	\| DEFAULT ':' assignment_expression
[bb7422a]	761	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	762	;
[51b73452]	763
	764	postfix_expression:
[4d51835]	765	primary_expression
[1d71208]	766	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	767	// Historic, transitional: Disallow commas in subscripts.
	768	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	769	// Current: Commas in subscripts make tuples.
[b93c544]	770	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	771	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	772	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	773	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	774	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	775	// equivalent to the old x[i,j].
[bb7422a]	776	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	777	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	778	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	779	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	780	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	781	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	782	{
	783	Token fn;
	784	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	785	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	786	}
[cbbd8fd7]	787	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	788	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	789	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
[45ee172]	790	{ $$ = new ExpressionNode( build_va_arg( yylloc, $3, ( $6 ? $6->addType( $5 ) : $5 ) ) ); }
[948fdef]	791	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	792	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	793	\| constant '`' identifier // CFA, postfix call
[bb7422a]	794	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	795	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	796	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	797
	798	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	799	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	800	// them. For example:
	801	//
	802	// struct S;
	803	// forall(T) struct T;
	804	// union U;
	805	// enum E { S, T, E };
	806	// struct Z { int S, T, Z, E, U; };
	807	// void fred () {
	808	// Z z;
	809	// z.S; // lexer returns S is TYPEDEFname
	810	// z.T; // lexer returns T is TYPEGENname
	811	// z.Z; // lexer returns Z is TYPEDEFname
	812	// z.U; // lexer returns U is TYPEDEFname
	813	// z.E; // lexer returns E is TYPEDEFname
	814	// }
[12f1156]	815	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	816	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	817
[df22130]	818	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	819	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	820	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	821	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	822	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	823	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	824	\| postfix_expression '.' aggregate_control
[bb7422a]	825	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	826	\| postfix_expression ARROW identifier
[bb7422a]	827	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	828	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	829	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	830	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	831	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	832	\| postfix_expression ICR
[bb7422a]	833	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	834	\| postfix_expression DECR
[bb7422a]	835	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	836	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	837	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	838	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	839	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	840	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	841	{
[9706554]	842	Token fn;
[ecb27a7]	843	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	844	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	845	}
[4d51835]	846	;
[51b73452]	847
[679e644]	848	field_name_list: // CFA, tuple field selector
[4d51835]	849	field
[b93c544]	850	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	851	;
[b87a5ed]	852
	853	field: // CFA, tuple field selector
[faddbd8]	854	field_name
[930f69e]	855	\| FLOATING_DECIMALconstant field
[bb7422a]	856	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	857	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	858	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	859	\| field_name '.' field
[bb7422a]	860	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	861	\| field_name '.' '[' field_name_list ']'
[bb7422a]	862	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	863	\| field_name ARROW field
[bb7422a]	864	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	865	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	866	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	867	;
[51b73452]	868
[faddbd8]	869	field_name:
[df22130]	870	INTEGERconstant fraction_constants_opt
[bb7422a]	871	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	872	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	873	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	874	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	875	{
[bb7422a]	876	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	877	}
[1b29996]	878	;
	879
[df22130]	880	fraction_constants_opt:
[1b29996]	881	// empty
[8780e30]	882	{ $$ = nullptr; }
[df22130]	883	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	884	{
[bb7422a]	885	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	886	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	887	}
[faddbd8]	888	;
	889
[51b73452]	890	unary_expression:
[4d51835]	891	postfix_expression
[c6b1105]	892	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	893	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	894	\| constant
[ab57786]	895	\| string_literal
[32d6fdc]	896	{ $$ = $1; }
[4d51835]	897	\| EXTENSION cast_expression // GCC
[e04ef3a]	898	{ $$ = $2->set_extension( true ); }
[c6b1105]	899	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	900	// { * X; } // dereference X
	901	// { * int X; } // CFA declaration of pointer to int
[51e076e]	902	\| ptrref_operator cast_expression // CFA
[9706554]	903	{
	904	switch ( $1 ) {
[bb7422a]	905	case OperKinds::AddressOf:
	906	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	907	break;
[bb7422a]	908	case OperKinds::PointTo:
	909	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	910	break;
[bb7422a]	911	case OperKinds::And:
	912	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	913	break;
[bb7422a]	914	default:
[9706554]	915	assert( false );
	916	}
	917	}
[4d51835]	918	\| unary_operator cast_expression
[bb7422a]	919	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	920	\| ICR unary_expression
[bb7422a]	921	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	922	\| DECR unary_expression
[bb7422a]	923	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	924	\| SIZEOF unary_expression
[b6f2e7ab]	925	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[84d58c5]	926	\| SIZEOF '(' type_no_function ')'
[bb7422a]	927	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	928	\| ALIGNOF unary_expression // GCC, variable alignment
[b6f2e7ab]	929	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[a2e0687]	930	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	931	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	932
	933	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	934	// look ahead, so the cfa_abstract_function is factored out.
	935	\| SIZEOF '(' cfa_abstract_function ')'
	936	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	937	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	938	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	939
[033ff37]	940	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	941	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	942	\| TYPEID '(' type ')'
[1f652a7]	943	{
	944	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	945	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	946	}
[0c327ce]	947	\| COUNTOF unary_expression
[4941716]	948	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	949	\| COUNTOF '(' type_no_function ')'
	950	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	951	;
[51b73452]	952
[dd51906]	953	ptrref_operator:
[d9e2280]	954	'*' { $$ = OperKinds::PointTo; }
	955	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	956	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	957	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	958	;
	959
[51b73452]	960	unary_operator:
[d9e2280]	961	'+' { $$ = OperKinds::UnPlus; }
	962	\| '-' { $$ = OperKinds::UnMinus; }
	963	\| '!' { $$ = OperKinds::Neg; }
	964	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	965	;
[51b73452]	966
	967	cast_expression:
[4d51835]	968	unary_expression
[84d58c5]	969	\| '(' type_no_function ')' cast_expression
[bb7422a]	970	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	971	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	972	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	973	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	974	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	975	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	976	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	977	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	978	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[a16f2b6]	979	\| '(' RETURN type_no_function ')' cast_expression // CFA (ASCRIPTION)
[ecf3812]	980	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::ReturnCast ) ); }
[a16f2b6]	981	\| '(' COERCE type_no_function ')' cast_expression // CFA (COERCION)
[1528a2c]	982	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
[a16f2b6]	983	\| '(' qualifier_cast_list ')' cast_expression // CFA, (modify CVs of cast_expression)
[1528a2c]	984	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	985	// \| '(' type_no_function ')' tuple
[bb7422a]	986	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	987	;
[51b73452]	988
[1528a2c]	989	qualifier_cast_list:
	990	cast_modifier type_qualifier_name
	991	\| cast_modifier MUTEX
	992	\| qualifier_cast_list cast_modifier type_qualifier_name
	993	\| qualifier_cast_list cast_modifier MUTEX
	994	;
	995
	996	cast_modifier:
	997	'-'
	998	\| '+'
	999	;
	1000
[994d080]	1001	exponential_expression:
[4d51835]	1002	cast_expression
[994d080]	1003	\| exponential_expression '\\' cast_expression
[bb7422a]	1004	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1005	;
	1006
	1007	multiplicative_expression:
	1008	exponential_expression
	1009	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1010	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1011	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1012	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1013	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1014	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1015	;
[51b73452]	1016
	1017	additive_expression:
[4d51835]	1018	multiplicative_expression
	1019	\| additive_expression '+' multiplicative_expression
[bb7422a]	1020	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1021	\| additive_expression '-' multiplicative_expression
[bb7422a]	1022	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1023	;
[51b73452]	1024
	1025	shift_expression:
[4d51835]	1026	additive_expression
	1027	\| shift_expression LS additive_expression
[bb7422a]	1028	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1029	\| shift_expression RS additive_expression
[bb7422a]	1030	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1031	;
[51b73452]	1032
	1033	relational_expression:
[4d51835]	1034	shift_expression
	1035	\| relational_expression '<' shift_expression
[bb7422a]	1036	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1037	\| relational_expression '>' shift_expression
[bb7422a]	1038	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1039	\| relational_expression LE shift_expression
[bb7422a]	1040	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1041	\| relational_expression GE shift_expression
[bb7422a]	1042	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1043	;
[51b73452]	1044
	1045	equality_expression:
[4d51835]	1046	relational_expression
	1047	\| equality_expression EQ relational_expression
[bb7422a]	1048	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1049	\| equality_expression NE relational_expression
[bb7422a]	1050	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1051	;
[51b73452]	1052
	1053	AND_expression:
[4d51835]	1054	equality_expression
	1055	\| AND_expression '&' equality_expression
[bb7422a]	1056	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1057	;
[51b73452]	1058
	1059	exclusive_OR_expression:
[4d51835]	1060	AND_expression
	1061	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1062	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1063	;
[51b73452]	1064
	1065	inclusive_OR_expression:
[4d51835]	1066	exclusive_OR_expression
	1067	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1068	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1069	;
[51b73452]	1070
	1071	logical_AND_expression:
[4d51835]	1072	inclusive_OR_expression
	1073	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1074	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1075	;
[51b73452]	1076
	1077	logical_OR_expression:
[4d51835]	1078	logical_AND_expression
	1079	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1080	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1081	;
[51b73452]	1082
	1083	conditional_expression:
[4d51835]	1084	logical_OR_expression
	1085	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1086	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1087	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1088	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1089	;
[51b73452]	1090
	1091	constant_expression:
[4d51835]	1092	conditional_expression
	1093	;
[51b73452]	1094
[c1b0b8f]	1095	argument_expression_list_opt:
	1096	// empty
	1097	{ $$ = nullptr; }
	1098	\| argument_expression_list
	1099	;
	1100
	1101	argument_expression_list:
	1102	argument_expression
	1103	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1104	\| argument_expression_list ',' argument_expression // no empty argument
	1105	{ $$ = $1->set_last( $3 ); }
	1106	;
	1107
	1108	argument_expression:
	1109	'?' // CFA, default parameter
[daa4cc1]	1110	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1111	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1112	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1113	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1114	{ $$ = $4; }
[c1b0b8f]	1115	\| assignment_expression
	1116	;
	1117
[51b73452]	1118	assignment_expression:
[4d51835]	1119	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1120	conditional_expression
	1121	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1122	{
[25744d2]	1123	// if ( $2 == OperKinds::AtAssn ) {
	1124	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1125	// } else {
[bb7422a]	1126	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1127	// } // if
[9867cdb]	1128	}
[7fdb94e1]	1129	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1130	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1131	;
[51b73452]	1132
	1133	assignment_expression_opt:
[4d51835]	1134	// empty
[d1625f8]	1135	{ $$ = nullptr; }
[4d51835]	1136	\| assignment_expression
	1137	;
[b87a5ed]	1138
[9706554]	1139	assignment_operator:
[f9c3100]	1140	simple_assignment_operator
	1141	\| compound_assignment_operator
	1142	;
	1143
	1144	simple_assignment_operator:
[d9e2280]	1145	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1146	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1147	;
	1148
	1149	compound_assignment_operator:
	1150	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1151	\| MULTassign { $$ = OperKinds::MulAssn; }
	1152	\| DIVassign { $$ = OperKinds::DivAssn; }
	1153	\| MODassign { $$ = OperKinds::ModAssn; }
	1154	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1155	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1156	\| LSassign { $$ = OperKinds::LSAssn; }
	1157	\| RSassign { $$ = OperKinds::RSAssn; }
	1158	\| ANDassign { $$ = OperKinds::AndAssn; }
	1159	\| ERassign { $$ = OperKinds::ERAssn; }
	1160	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1161	;
[9706554]	1162
[b87a5ed]	1163	tuple: // CFA, tuple
[de62360d]	1164	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1165	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1a8b17a]	1166	'[' ',' ']'
[dd54139]	1167	// { $$ = new ExpressionNode( build_tuple( yylloc, nullptr ) ); }
	1168	{ SemanticError( yylloc, "Empty tuple is meaningless." ); $$ = nullptr; }
[1a8b17a]	1169	\| '[' assignment_expression ',' ']'
	1170	{ $$ = new ExpressionNode( build_tuple( yylloc, $2 ) ); }
	1171	\| '[' '@' comma_opt ']'
	1172	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1173	\| '[' assignment_expression ',' tuple_expression_list comma_opt ']'
[917f67dd]	1174	{ $$ = new ExpressionNode( build_tuple( yylloc, $2->set_last( $4 ) ) ); }
[1a8b17a]	1175	\| '[' '@' ',' tuple_expression_list comma_opt ']'
	1176	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1177	;
[51b73452]	1178
	1179	tuple_expression_list:
[0a6d8204]	1180	assignment_expression
	1181	\| '@' // CFA
	1182	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1183	\| tuple_expression_list ',' assignment_expression
[b93c544]	1184	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1185	\| tuple_expression_list ',' '@'
	1186	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1187	;
[51b73452]	1188
	1189	comma_expression:
[4d51835]	1190	assignment_expression
[9706554]	1191	\| comma_expression ',' assignment_expression
[bb7422a]	1192	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1193	;
[51b73452]	1194
	1195	comma_expression_opt:
[4d51835]	1196	// empty
[58dd019]	1197	{ $$ = nullptr; }
[4d51835]	1198	\| comma_expression
	1199	;
[51b73452]	1200
[e1d66c84]	1201	// ************************ STATEMENTS *****************************
[51b73452]	1202
	1203	statement:
[4d51835]	1204	labeled_statement
	1205	\| compound_statement
[c0a33d2]	1206	\| expression_statement
[4d51835]	1207	\| selection_statement
	1208	\| iteration_statement
	1209	\| jump_statement
[8b47e50]	1210	\| with_statement
[b6b3c42]	1211	\| mutex_statement
[5b2edbc]	1212	\| waitfor_statement
[9fd9d015]	1213	\| waituntil_statement
[11ab0b4a]	1214	\| corun_statement
	1215	\| cofor_statement
[4d51835]	1216	\| exception_statement
[2a8427c6]	1217	\| enable_disable_statement
[fae90d5f]	1218	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1219	\| asm_statement
[61fc4f6]	1220	\| DIRECTIVE
[bb7422a]	1221	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[dd54139]	1222	// \| attribute ';'
	1223	// { $$ = new StatementNode( $1 ); }
[b9be000b]	1224	;
[51b73452]	1225
	1226	labeled_statement:
[033ff37]	1227	// labels cannot be identifiers 0 or 1
[44a81853]	1228	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1229	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1230	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1231	{
[b1f2007d]	1232	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1233	"where a declaration, case, or default is not a statement.\n"
	1234	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1235	$$ = nullptr;
	1236	}
[4d51835]	1237	;
[51b73452]	1238
	1239	compound_statement:
[4d51835]	1240	'{' '}'
[bb7422a]	1241	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1242	\| '{' push
[5e25953]	1243	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1244	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1245	pop '}'
[bb7422a]	1246	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1247	;
[b87a5ed]	1248
[9bd6105]	1249	statement_decl_list: // C99
	1250	statement_decl
[35718a9]	1251	\| statement_decl_list statement_decl
[6d01d89]	1252	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1253	;
[51b73452]	1254
[9bd6105]	1255	statement_decl:
[4d51835]	1256	declaration // CFA, new & old style declarations
[e82aa9df]	1257	{ $$ = new StatementNode( $1 ); }
[4d51835]	1258	\| EXTENSION declaration // GCC
[6d01d89]	1259	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1260	\| function_definition
[e82aa9df]	1261	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1262	\| EXTENSION function_definition // GCC
[6d01d89]	1263	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1264	\| statement
[4d51835]	1265	;
[51b73452]	1266
[9bd6105]	1267	statement_list_nodecl:
[4d51835]	1268	statement
[9bd6105]	1269	\| statement_list_nodecl statement
[6d01d89]	1270	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1271	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1272	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1273	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1274	;
[51b73452]	1275
	1276	expression_statement:
[4d51835]	1277	comma_expression_opt ';'
[bb7422a]	1278	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1279	;
[51b73452]	1280
[7e13b11]	1281	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1282	// parenthesis:
	1283	//
[446740a]	1284	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1285	//
[7e13b11]	1286	// switch O { }
	1287	//
	1288	// O{} => object-constructor for conditional, switch body ???
	1289	// O{} => O for conditional followed by switch body
	1290	//
	1291	// C++ has this problem, as it has the same constructor syntax.
	1292	//
	1293	// switch sizeof ( T ) { }
	1294	//
	1295	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1296	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1297	//
	1298	// Note the two grammar rules for sizeof (alignof)
	1299	//
	1300	// \| SIZEOF unary_expression
	1301	// \| SIZEOF '(' type_no_function ')'
	1302	//
	1303	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1304
[51b73452]	1305	selection_statement:
[647e2ea]	1306	IF '(' conditional_declaration ')' statement %prec THEN
	1307	// explicitly deal with the shift/reduce conflict on if/else
	1308	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1309	\| IF '(' conditional_declaration ')' statement ELSE statement
	1310	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1311	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1312	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1313	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1314	{
[bb7422a]	1315	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1316	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1317	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1318	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1319	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1320	// statement.
[b93c544]	1321	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1322	}
[0442f93f]	1323	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1324	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1325	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1326	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1327	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1328	{
[bb7422a]	1329	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1330	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1331	}
[0442f93f]	1332	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1333	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1334	;
[b87a5ed]	1335
[473d1da0]	1336	conditional_declaration:
[35718a9]	1337	comma_expression
[569b118]	1338	{ $$ = new CondCtrl( nullptr, $1 ); }
[35718a9]	1339	\| c_declaration // no semi-colon
[569b118]	1340	{ $$ = new CondCtrl( $1, nullptr ); }
[35718a9]	1341	\| cfa_declaration // no semi-colon
[569b118]	1342	{ $$ = new CondCtrl( $1, nullptr ); }
[6d49ea3]	1343	\| declaration comma_expression // semi-colon separated
[569b118]	1344	{ $$ = new CondCtrl( $1, $2 ); }
[9fd9d015]	1345	;
[936e9f4]	1346
[de62360d]	1347	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1348	// clause allows a list of values and subranges.
[b87a5ed]	1349
	1350	case_value: // CFA
[4d51835]	1351	constant_expression { $$ = $1; }
	1352	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1353	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1354	\| subrange // CFA, subrange
	1355	;
[b87a5ed]	1356
	1357	case_value_list: // CFA
[6611177]	1358	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1359	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1360	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1361	;
[b87a5ed]	1362
	1363	case_label: // CFA
[0442f93f]	1364	CASE error // invalid syntax rule
[253d0b4]	1365	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1366	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1367	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1368	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1369	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1370	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1371	\| DEFAULT error // invalid syntax rule
[253d0b4]	1372	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1373	;
[b87a5ed]	1374
	1375	case_label_list: // CFA
[4d51835]	1376	case_label
[6611177]	1377	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1378	;
[b87a5ed]	1379
	1380	case_clause: // CFA
[bb7422a]	1381	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1382	;
[b87a5ed]	1383
	1384	switch_clause_list_opt: // CFA
[4d51835]	1385	// empty
[58dd019]	1386	{ $$ = nullptr; }
[4d51835]	1387	\| switch_clause_list
	1388	;
[b87a5ed]	1389
	1390	switch_clause_list: // CFA
[9bd6105]	1391	case_label_list statement_list_nodecl
[bb7422a]	1392	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1393	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1394	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1395	;
[b87a5ed]	1396
[51b73452]	1397	iteration_statement:
[5695645]	1398	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[569b118]	1399	{ $$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1400	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1401	{
[569b118]	1402	$$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1403	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1404	}
[473d1da0]	1405	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1406	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1407	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1408	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1409	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1410	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1411	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1412	{
[bb7422a]	1413	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1414	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1415	}
	1416	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1417	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1418	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1419	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1420	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1421	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1422	\| FOR '(' ')' statement ELSE statement // CFA
	1423	{
[bb7422a]	1424	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1425	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1426	}
[efc8f3e]	1427	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1428	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1429	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1430	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1431	;
	1432
[6d01d89]	1433	for_control_expression_list:
	1434	for_control_expression
	1435	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1436	// ForCtrl + ForCtrl:
	1437	// init + init => multiple declaration statements that are hoisted
	1438	// condition + condition => (expression) && (expression)
	1439	// change + change => (expression), (expression)
	1440	{
	1441	$1->init->set_last( $3->init );
	1442	if ( $1->condition ) {
	1443	if ( $3->condition ) {
[bb7422a]	1444	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1445	} // if
	1446	} else $1->condition = $3->condition;
	1447	if ( $1->change ) {
	1448	if ( $3->change ) {
[bb7422a]	1449	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1450	} // if
	1451	} else $1->change = $3->change;
	1452	$$ = $1;
	1453	}
[6d01d89]	1454	;
	1455
[51b73452]	1456	for_control_expression:
[6d01d89]	1457	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1458	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1459	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1460	{
[253d0b4]	1461	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1462	}
[6d01d89]	1463	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1464	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1465
[aa122e9]	1466	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1467	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1468	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1469	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1470
[aa122e9]	1471	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1472	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1473	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1474	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1475
[aa122e9]	1476	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1477	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1478	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1479	{
[4fee301]	1480	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1481	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1482	}
[aa122e9]	1483	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1484	{
[4fee301]	1485	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1486	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1487	}
[aa122e9]	1488	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1489	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1490	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1491	{
[4fee301]	1492	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1493	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1494	}
[aa122e9]	1495	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1496	{
[4fee301]	1497	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1498	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1499	}
[65ef0cd]	1500	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1501	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1502	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1503	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1504	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1505	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1506	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1507	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1508	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1509	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1510
[089b39e1]	1511	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1512	// permissive allows for a better error message from forCtrl.
[f1aeede]	1513	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1514	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1515	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1516	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1517
[d78c238]	1518	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1519	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1520	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1521	{
[4fee301]	1522	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1523	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1524	}
[52be5948]	1525	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1526	{
[4fee301]	1527	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1528	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1529	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1530	}
[65ef0cd]	1531	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1532	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1533
	1534	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1535	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1536	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1537	{
[4fee301]	1538	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1539	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1540	}
[52be5948]	1541	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1542	{
[4fee301]	1543	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1544	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1545	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1546	}
	1547	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1548	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1549	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1550	{
[4fee301]	1551	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1552	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1553	}
[52be5948]	1554	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1555	{
[4fee301]	1556	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1557	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1558	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1559	}
[dbedd71]	1560	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1561	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1562
[569b118]	1563	// \| '@' identifier ';' comma_expression // CFA
[d78c238]	1564	\| declaration comma_expression // CFA
[bb7422a]	1565	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1566	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1567	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1568
[d78c238]	1569	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1570	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1571	\| declaration '@' updowneq comma_expression // CFA
	1572	{
[4fee301]	1573	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1574	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1575	}
[52be5948]	1576	\| declaration comma_expression updowneq '@' // CFA
	1577	{
[4fee301]	1578	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1579	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1580	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1581	}
[d78c238]	1582
	1583	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1584	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1585	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1586	{
[4fee301]	1587	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1588	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1589	}
[52be5948]	1590	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1591	{
[4fee301]	1592	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1593	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1594	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1595	}
	1596	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1597	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1598	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1599	{
[4fee301]	1600	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1601	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1602	}
[52be5948]	1603	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1604	{
[4fee301]	1605	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1606	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1607	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1608	}
[65ef0cd]	1609	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[01afd8d]	1610	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1611
[6d2b3dc]	1612	\| comma_expression ';' type_type_specifier // CFA, enum type
[ca33b15]	1613	{
[6d2b3dc]	1614	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->clone()->buildType() ) ), $3 );
[ca33b15]	1615	}
[a8ced63]	1616	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1617	{
[55ba259e]	1618	if ( $3 == OperKinds::GThan ) {
	1619	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1620	$3 = OperKinds::GEThan;
	1621	} // if
[6d2b3dc]	1622	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1623	}
[9fd9d015]	1624	;
[98337569]	1625
[a8ced63]	1626	enum_key:
	1627	type_name
[4941716]	1628	{
	1629	typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1630	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false );
	1631	}
[a8ced63]	1632	\| ENUM identifier
[4941716]	1633	{
	1634	typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1635	$$ = DeclarationNode::newEnum( $2, nullptr, false, false );
	1636	}
[a8ced63]	1637	\| ENUM type_name
[4941716]	1638	{
	1639	typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1640	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false );
	1641	}
[a8ced63]	1642	;
	1643
[55ba259e]	1644	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1645	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1646	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1647	downupdowneq:
[01afd8d]	1648	ErangeUp
	1649	{ $$ = OperKinds::LThan; }
	1650	\| ErangeDown
[d78c238]	1651	{ $$ = OperKinds::GThan; }
	1652	\| ErangeUpEq
	1653	{ $$ = OperKinds::LEThan; }
	1654	\| ErangeDownEq
	1655	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1656	;
[51b73452]	1657
[d78c238]	1658	updown:
[01afd8d]	1659	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1660	{ $$ = OperKinds::LThan; }
	1661	\| ErangeUp
[cc22003]	1662	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1663	\| ErangeDown
	1664	{ $$ = OperKinds::GThan; }
[9fd9d015]	1665	;
[d78c238]	1666
	1667	updowneq:
	1668	updown
	1669	\| ErangeUpEq
	1670	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1671	\| ErangeDownEq
	1672	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1673	;
[cc22003]	1674
[51b73452]	1675	jump_statement:
[44a81853]	1676	GOTO identifier_or_type_name ';'
[bb7422a]	1677	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1678	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1679	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1680	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1681	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[d96f7c4]	1682	// A semantic check is required to ensure fallthrough appears only in the body of a choose statement.
	1683	\| FALLTHROUGH ';' // CFA
[bb7422a]	1684	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[d96f7c4]	1685	\| FALLTHROUGH identifier_or_type_name ';' // CFA
[bb7422a]	1686	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[d96f7c4]	1687	\| FALLTHROUGH DEFAULT ';' // CFA
[bb7422a]	1688	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1689	\| CONTINUE ';'
[de62360d]	1690	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1691	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1692	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1693	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1694	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1695	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1696	\| BREAK ';'
[de62360d]	1697	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1698	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1699	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1700	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1701	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1702	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1703	\| RETURN comma_expression_opt ';'
[bb7422a]	1704	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1705	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1706	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1707	\| SUSPEND ';'
[bb7422a]	1708	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1709	\| SUSPEND compound_statement
[bb7422a]	1710	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1711	\| SUSPEND COROUTINE ';'
[bb7422a]	1712	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1713	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1714	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1715	\| SUSPEND GENERATOR ';'
[bb7422a]	1716	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1717	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1718	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1719	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1720	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1721	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1722	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1723	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1724	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1725	;
[51b73452]	1726
[8b47e50]	1727	with_statement:
[e78966e]	1728	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1729	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1730	;
	1731
[bf20567]	1732	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1733	mutex_statement:
[bf20567]	1734	MUTEX '(' argument_expression_list_opt ')' statement
	1735	{
[253d0b4]	1736	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1737	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1738	}
[b6b3c42]	1739	;
	1740
[51d6d6a]	1741	when_clause:
[6a276a0]	1742	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1743	;
	1744
[5b2edbc]	1745	when_clause_opt:
	1746	// empty
[135b431]	1747	{ $$ = nullptr; }
[51d6d6a]	1748	\| when_clause
[5b2edbc]	1749	;
	1750
[4a063df]	1751	cast_expression_list:
	1752	cast_expression
	1753	\| cast_expression_list ',' cast_expression
[a491a3c]	1754	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1755	;
	1756
	1757	timeout:
[9fd9d015]	1758	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1759	;
	1760
[9fd9d015]	1761	wor:
	1762	OROR
	1763	\| WOR
	1764
	1765	waitfor:
	1766	WAITFOR '(' cast_expression ')'
	1767	{ $$ = $3; }
	1768	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1769	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1770	;
	1771
[9fd9d015]	1772	wor_waitfor_clause:
[51d6d6a]	1773	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1774	// Called first: create header for WaitForStmt.
[bb7422a]	1775	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1776	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1777	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1778	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1779	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1780	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1781	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1782	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1783	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1784	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1785	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1786	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1787	;
	1788
	1789	waitfor_statement:
[9fd9d015]	1790	wor_waitfor_clause %prec THEN
	1791	{ $$ = new StatementNode( $1 ); }
	1792	;
	1793
	1794	wand:
	1795	ANDAND
	1796	\| WAND
	1797	;
	1798
	1799	waituntil:
[04c78215]	1800	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1801	{ $$ = $3; }
	1802	;
	1803
	1804	waituntil_clause:
	1805	when_clause_opt waituntil statement
[c86b08d]	1806	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1807	\| '(' wor_waituntil_clause ')'
[c86b08d]	1808	{ $$ = $2; }
[9fd9d015]	1809	;
	1810
	1811	wand_waituntil_clause:
	1812	waituntil_clause %prec THEN
[c86b08d]	1813	{ $$ = $1; }
[9fd9d015]	1814	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1815	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1816	;
	1817
	1818	wor_waituntil_clause:
	1819	wand_waituntil_clause
[c86b08d]	1820	{ $$ = $1; }
[70056ed]	1821	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1822	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1823	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1824	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1825	;
	1826
	1827	waituntil_statement:
	1828	wor_waituntil_clause %prec THEN
[f259682]	1829	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1830	;
	1831
[11ab0b4a]	1832	corun_statement:
	1833	CORUN statement
[eb779d5]	1834	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1835	;
	1836
	1837	cofor_statement:
	1838	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1839	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1840	;
	1841
[51b73452]	1842	exception_statement:
[bb7422a]	1843	TRY compound_statement handler_clause %prec THEN
	1844	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1845	\| TRY compound_statement finally_clause
[bb7422a]	1846	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1847	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1848	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1849	;
[51b73452]	1850
	1851	handler_clause:
[206ecae]	1852	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1853	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1854	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1855	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1856	;
	1857
	1858	handler_predicate_opt:
[7fdb94e1]	1859	// empty
[cbce272]	1860	{ $$ = nullptr; }
[6a276a0]	1861	\| ';' conditional_expression { $$ = $2; }
[307a732]	1862	;
	1863
	1864	handler_key:
[bb7422a]	1865	CATCH { $$ = ast::Terminate; }
	1866	\| RECOVER { $$ = ast::Terminate; }
	1867	\| CATCHRESUME { $$ = ast::Resume; }
	1868	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1869	;
[51b73452]	1870
	1871	finally_clause:
[6611177]	1872	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1873	;
[51b73452]	1874
	1875	exception_declaration:
[d0ffed1]	1876	// No SUE declaration in parameter list.
	1877	type_specifier_nobody
	1878	\| type_specifier_nobody declarator
[c0a33d2]	1879	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1880	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1881	{ $$ = $2->addType( $1 ); }
[033ff37]	1882	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1883	{ $$ = $1->addName( $2 ); }
[c0aa336]	1884	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1885	;
[51b73452]	1886
[2a8427c6]	1887	enable_disable_statement:
	1888	enable_disable_key identifier_list compound_statement
	1889	;
	1890
	1891	enable_disable_key:
	1892	ENABLE
	1893	\| DISABLE
	1894	;
	1895
[51b73452]	1896	asm_statement:
[ab57786]	1897	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1898	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1899	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1900	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1901	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1902	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1903	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1904	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1905	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1906	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1907	;
	1908
	1909	asm_volatile_opt: // GCC
	1910	// empty
	1911	{ $$ = false; }
	1912	\| VOLATILE
	1913	{ $$ = true; }
[4d51835]	1914	;
[b87a5ed]	1915
	1916	asm_operands_opt: // GCC
[4d51835]	1917	// empty
[58dd019]	1918	{ $$ = nullptr; } // use default argument
[4d51835]	1919	\| asm_operands_list
	1920	;
[b87a5ed]	1921
	1922	asm_operands_list: // GCC
[4d51835]	1923	asm_operand
	1924	\| asm_operands_list ',' asm_operand
[b93c544]	1925	{ $$ = $1->set_last( $3 ); }
[4d51835]	1926	;
[b87a5ed]	1927
	1928	asm_operand: // GCC
[ab57786]	1929	string_literal '(' constant_expression ')'
[32d6fdc]	1930	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1931	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1932	{
[32d6fdc]	1933	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1934	delete $2.str;
	1935	}
[7f5566b]	1936	;
	1937
[4e06c1e]	1938	asm_clobbers_list_opt: // GCC
[7f5566b]	1939	// empty
[58dd019]	1940	{ $$ = nullptr; } // use default argument
[ab57786]	1941	\| string_literal
[32d6fdc]	1942	{ $$ = $1; }
[ab57786]	1943	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1944	{ $$ = $1->set_last( $3 ); }
[4d51835]	1945	;
[b87a5ed]	1946
[7f5566b]	1947	label_list:
[033ff37]	1948	identifier
[ab57786]	1949	{
[bb7422a]	1950	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1951	delete $1; // allocated by lexer
	1952	}
[033ff37]	1953	\| label_list ',' identifier
[ab57786]	1954	{
[bb7422a]	1955	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1956	delete $3; // allocated by lexer
	1957	}
[4d51835]	1958	;
[51b73452]	1959
[e1d66c84]	1960	// **************************** DECLARATIONS *******************************
[51b73452]	1961
[b87a5ed]	1962	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1963	// empty
[58dd019]	1964	{ $$ = nullptr; }
[4d51835]	1965	\| declaration_list
	1966	;
[51b73452]	1967
	1968	declaration_list:
[4d51835]	1969	declaration
[647e2ea]	1970	\| declaration_list declaration
	1971	{ $$ = $1->set_last( $2 ); }
[4d51835]	1972	;
[51b73452]	1973
[407bde5]	1974	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1975	// empty
[58dd019]	1976	{ $$ = nullptr; }
[35718a9]	1977	\| KR_parameter_list
[4d51835]	1978	;
[51b73452]	1979
[35718a9]	1980	KR_parameter_list:
[c25f16b]	1981	c_declaration ';'
	1982	{ $$ = $1; }
	1983	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1984	{ $$ = $1->set_last( $2 ); }
[4d51835]	1985	;
[b87a5ed]	1986
[51b1202]	1987	local_label_declaration_opt: // GCC, local label
[4d51835]	1988	// empty
[51b1202]	1989	\| local_label_declaration_list
[4d51835]	1990	;
[b87a5ed]	1991
[51b1202]	1992	local_label_declaration_list: // GCC, local label
	1993	LABEL local_label_list ';'
	1994	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1995	;
[b87a5ed]	1996
[51b1202]	1997	local_label_list: // GCC, local label
[033ff37]	1998	identifier_or_type_name
	1999	\| local_label_list ',' identifier_or_type_name
[4d51835]	2000	;
[b87a5ed]	2001
[936e9f4]	2002	declaration: // old & new style declarations
[35718a9]	2003	c_declaration ';'
	2004	\| cfa_declaration ';' // CFA
[b9f6791f]	2005	\| static_assert ';' // C11
[4d51835]	2006	;
[b87a5ed]	2007
[b9be000b]	2008	static_assert:
[b9f6791f]	2009	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2010	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2011	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2012	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2013
[de62360d]	2014	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2015	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2016	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2017	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2018	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2019	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2020	//
[b87a5ed]	2021	// CFA C
	2022	// [10] int x; int x[10]; // array of 10 integers
	2023	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2024
[c0aa336]	2025	cfa_declaration: // CFA
[4cc585b]	2026	cfa_variable_declaration
	2027	\| cfa_typedef_declaration
	2028	\| cfa_function_declaration
	2029	\| type_declaring_list
[2501ae5]	2030	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2031	\| trait_specifier
[4d51835]	2032	;
[b87a5ed]	2033
[c0aa336]	2034	cfa_variable_declaration: // CFA
	2035	cfa_variable_specifier initializer_opt
[7fdb94e1]	2036	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2037	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2038	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2039	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2040	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2041	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2042	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2043	;
[b87a5ed]	2044
[c0aa336]	2045	cfa_variable_specifier: // CFA
[de62360d]	2046	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2047	// storage-class
[c0aa336]	2048	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2049	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2050	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2051	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[dd54139]	2052	\| multi_array_dimension cfa_abstract_tuple identifier_or_type_name asm_name_opt
	2053	{ $$ = $2->addNewArray( $1 )->addName( $3 )->addAsmName( $4 ); }
	2054	\| multi_array_dimension type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
	2055	{ $$ = $3->addNewArray( $1 )->addQualifiers( $2 )->addName( $4 )->addAsmName( $5 ); }
[2ab31fd]	2056
	2057	// [ int s, int t ]; // declare s and t
	2058	// [ int, int ] f();
	2059	// [] g( int );
	2060	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2061	// g( x + y );
	2062	\| cfa_function_return asm_name_opt
	2063	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2064	\| type_qualifier_list cfa_function_return asm_name_opt
	2065	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2066	;
[b87a5ed]	2067
[c0aa336]	2068	cfa_function_declaration: // CFA
	2069	cfa_function_specifier
	2070	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2071	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2072	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2073	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2074	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2075	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2076	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2077	{
[481115f]	2078	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2079	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2080	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2081	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2082	}
	2083	;
[b87a5ed]	2084
[c0aa336]	2085	cfa_function_specifier: // CFA
[647e2ea]	2086	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2087	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2088	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2089	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2090	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2091	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2092
[2871210]	2093	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2094	//
[647e2ea]	2095	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2096	// '[' ']' type_specifier
	2097	//
[2871210]	2098	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2099	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2100	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2101	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2102	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2103	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2104	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2105	;
[b87a5ed]	2106
[c0aa336]	2107	cfa_function_return: // CFA
[917f67dd]	2108	'[' cfa_parameter_list ']'
	2109	{ $$ = DeclarationNode::newTuple( $2 ); }
	2110	\| '[' cfa_parameter_list ',' cfa_abstract_parameter_list ']'
[b048dc3]	2111	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[917f67dd]	2112	{ $$ = DeclarationNode::newTuple( $2->set_last( $4 ) ); }
[4d51835]	2113	;
[b87a5ed]	2114
[c0aa336]	2115	cfa_typedef_declaration: // CFA
	2116	TYPEDEF cfa_variable_specifier
[4d51835]	2117	{
[71a422a]	2118	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2119	$$ = $2->addTypedef();
	2120	}
[c0aa336]	2121	\| TYPEDEF cfa_function_specifier
[4d51835]	2122	{
[71a422a]	2123	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2124	$$ = $2->addTypedef();
	2125	}
[647e2ea]	2126	\| cfa_typedef_declaration ',' identifier
[4d51835]	2127	{
[647e2ea]	2128	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2129	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2130	}
	2131	;
[b87a5ed]	2132
[de62360d]	2133	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2134	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2135
	2136	typedef_declaration:
[4d51835]	2137	TYPEDEF type_specifier declarator
	2138	{
[71a422a]	2139	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2140	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2141	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2142	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2143	}
[c25f16b]	2144	\| typedef_declaration ',' declarator
[4d51835]	2145	{
[c25f16b]	2146	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2147	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2148	}
[de62360d]	2149	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2150	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2151	\| type_specifier TYPEDEF declarator
[ac235a8]	2152	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2153	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2154	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2155	;
[b87a5ed]	2156
[721f17a]	2157	typedef_expression:
[25744d2]	2158	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2159	TYPEDEF identifier '=' assignment_expression
[4d51835]	2160	{
[ac235a8]	2161	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2162	}
[c25f16b]	2163	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2164	{
[ac235a8]	2165	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2166	}
	2167	;
[51b73452]	2168
[c0aa336]	2169	c_declaration:
[4cc585b]	2170	declaration_specifier declaring_list
[7fdb94e1]	2171	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2172	\| typedef_declaration
[25744d2]	2173	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2174	\| sue_declaration_specifier
[0bcd707]	2175	{
	2176	assert( $1->type );
[1a73dbb]	2177	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2178	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2179	}
	2180	// enums are never empty declarations because there must have at least one enumeration.
	2181	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2182	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2183	}
	2184	}
[4d51835]	2185	;
[51b73452]	2186
	2187	declaring_list:
[de62360d]	2188	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2189	// storage-class
[1f771fc]	2190	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2191	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2192	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2193	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2194
	2195	\| general_function_declarator asm_name_opt
	2196	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2197	\| general_function_declarator asm_name_opt '=' VOID
	2198	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2199
[4d51835]	2200	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2201	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2202	;
[b87a5ed]	2203
[1f771fc]	2204	general_function_declarator:
	2205	function_type_redeclarator
	2206	\| function_declarator
	2207	;
	2208
[b87a5ed]	2209	declaration_specifier: // type specifier + storage class
[4d51835]	2210	basic_declaration_specifier
[84d58c5]	2211	\| type_declaration_specifier
[79a6b17]	2212	\| sue_declaration_specifier
[0442f93f]	2213	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2214	{
[253d0b4]	2215	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2216	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2217	$$ = nullptr;
	2218	}
	2219	;
	2220
	2221	invalid_types:
	2222	aggregate_key
	2223	\| basic_type_name
	2224	\| indirect_type
[4d51835]	2225	;
[b87a5ed]	2226
[d0ffed1]	2227	declaration_specifier_nobody: // type specifier + storage class - {...}
	2228	// Preclude SUE declarations in restricted scopes:
	2229	//
	2230	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2231	//
	2232	// because it is impossible to call f due to name equivalence.
	2233	basic_declaration_specifier
	2234	\| sue_declaration_specifier_nobody
[84d58c5]	2235	\| type_declaration_specifier
[d0ffed1]	2236	;
	2237
	2238	type_specifier: // type specifier
[4d51835]	2239	basic_type_specifier
	2240	\| sue_type_specifier
[84d58c5]	2241	\| type_type_specifier
[4d51835]	2242	;
[b87a5ed]	2243
[d0ffed1]	2244	type_specifier_nobody: // type specifier - {...}
	2245	// Preclude SUE declarations in restricted scopes:
	2246	//
	2247	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2248	//
	2249	// because it is impossible to call f due to name equivalence.
	2250	basic_type_specifier
	2251	\| sue_type_specifier_nobody
[84d58c5]	2252	\| type_type_specifier
[d0ffed1]	2253	;
	2254
[b87a5ed]	2255	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2256	// empty
[58dd019]	2257	{ $$ = nullptr; }
[4d51835]	2258	\| type_qualifier_list
	2259	;
[51b73452]	2260
	2261	type_qualifier_list:
[de62360d]	2262	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2263	//
[de62360d]	2264	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2265	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2266	// appeared only once.
[4d51835]	2267	type_qualifier
	2268	\| type_qualifier_list type_qualifier
	2269	{ $$ = $1->addQualifiers( $2 ); }
	2270	;
[51b73452]	2271
	2272	type_qualifier:
[4d51835]	2273	type_qualifier_name
[6cef439]	2274	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2275	\| attribute // trick handles most attribute locations
[4d51835]	2276	;
[51b73452]	2277
	2278	type_qualifier_name:
[4d51835]	2279	CONST
[6cef439]	2280	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2281	\| RESTRICT
[6cef439]	2282	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2283	\| VOLATILE
[6cef439]	2284	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2285	\| ATOMIC
[6cef439]	2286	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2287
[446740a]	2288	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2289	//
	2290	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2291	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2292	\| forall
[6cef439]	2293	{ $$ = build_forall( $1 ); }
[a16a7ec]	2294	;
	2295
	2296	forall:
[35718a9]	2297	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2298	{ $$ = $3; }
[4d51835]	2299	;
[51b73452]	2300
	2301	declaration_qualifier_list:
[4d51835]	2302	storage_class_list
[de62360d]	2303	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2304	{ $$ = $1->addQualifiers( $2 ); }
	2305	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2306	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2307	;
[51b73452]	2308
	2309	storage_class_list:
[de62360d]	2310	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2311	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2312	//
[de62360d]	2313	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2314	// specifiers in a declaration.
[4d51835]	2315	storage_class
	2316	\| storage_class_list storage_class
	2317	{ $$ = $1->addQualifiers( $2 ); }
	2318	;
[51b73452]	2319
	2320	storage_class:
[4d51835]	2321	EXTERN
[36e6f10]	2322	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2323	\| STATIC
[36e6f10]	2324	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2325	\| AUTO
[36e6f10]	2326	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2327	\| REGISTER
[36e6f10]	2328	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2329	\| THREADLOCALGCC // GCC
[36e6f10]	2330	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2331	\| THREADLOCALC11 // C11
[36e6f10]	2332	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2333	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2334	\| INLINE // C99
[36e6f10]	2335	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2336	\| FORTRAN // C99
[36e6f10]	2337	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2338	\| NORETURN // C11
[36e6f10]	2339	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2340	;
[51b73452]	2341
	2342	basic_type_name:
[6cef439]	2343	basic_type_name_type
	2344	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2345	;
	2346
	2347	// Just an intermediate value for conversion.
	2348	basic_type_name_type:
[201aeb9]	2349	VOID
[e048ece]	2350	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2351	\| BOOL // C99
[e048ece]	2352	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2353	\| CHAR
[e048ece]	2354	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2355	\| INT
[e048ece]	2356	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2357	\| INT128
[e048ece]	2358	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2359	\| UINT128
[e048ece]	2360	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2361	\| FLOAT
[e048ece]	2362	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2363	\| DOUBLE
[e048ece]	2364	{ $$ = build_basic_type( TypeData::Double ); }
[c5f69fd]	2365	\| FLOAT80
	2366	{ $$ = build_basic_type( TypeData::Float80 ); }
[e15853c]	2367	\| uuFLOAT128
[e048ece]	2368	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[c5f69fd]	2369	\| FLOAT16
	2370	{ $$ = build_basic_type( TypeData::Float16 ); }
	2371	\| FLOAT32
	2372	{ $$ = build_basic_type( TypeData::Float32 ); }
	2373	\| FLOAT32X
	2374	{ $$ = build_basic_type( TypeData::Float32x ); }
	2375	\| FLOAT64
	2376	{ $$ = build_basic_type( TypeData::Float64 ); }
	2377	\| FLOAT64X
	2378	{ $$ = build_basic_type( TypeData::Float64x ); }
	2379	\| FLOAT128
	2380	{ $$ = build_basic_type( TypeData::Float128 ); }
[569b118]	2381	// https://developer.arm.com/documentation/den0018/a/NEON-Intrinsics/Accessing-vector-types-from-C
[c5f69fd]	2382	\| FLOAT128X
	2383	{ $$ = build_basic_type( TypeData::Float128x ); }
	2384	\| FLOAT32X4
	2385	{ $$ = build_basic_type( TypeData::Float32x4 ); }
	2386	\| FLOAT64X2
	2387	{ $$ = build_basic_type( TypeData::Float64x2 ); }
	2388	\| SVFLOAT32
	2389	{ $$ = build_basic_type( TypeData::Svfloat32 ); }
	2390	\| SVFLOAT64
	2391	{ $$ = build_basic_type( TypeData::Svfloat64 ); }
	2392	\| SVBOOL
	2393	{ $$ = build_basic_type( TypeData::Svbool ); }
[15f769c]	2394	\| DECIMAL32
	2395	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2396	\| DECIMAL64
	2397	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2398	\| DECIMAL128
	2399	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2400	\| COMPLEX // C99
[e048ece]	2401	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2402	\| IMAGINARY // C99
[e048ece]	2403	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2404	\| SIGNED
[e048ece]	2405	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2406	\| UNSIGNED
[e048ece]	2407	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2408	\| SHORT
[e048ece]	2409	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2410	\| LONG
[e048ece]	2411	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2412	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2413	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2414	\| AUTO_TYPE
[e048ece]	2415	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2416	\| vtable
	2417	;
	2418
	2419	vtable_opt:
	2420	// empty
	2421	{ $$ = nullptr; }
[9380add]	2422	\| vtable
[1f652a7]	2423	;
	2424
	2425	vtable:
[8f6f3729]	2426	VTABLE '(' type_name ')' default_opt
[6cef439]	2427	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2428	;
	2429
	2430	default_opt:
	2431	// empty
	2432	{ $$ = nullptr; }
	2433	\| DEFAULT
	2434	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2435	;
[51b73452]	2436
	2437	basic_declaration_specifier:
[4d51835]	2438	// A semantic check is necessary for conflicting storage classes.
	2439	basic_type_specifier
	2440	\| declaration_qualifier_list basic_type_specifier
	2441	{ $$ = $2->addQualifiers( $1 ); }
	2442	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2443	{ $$ = $1->addQualifiers( $2 ); }
	2444	\| basic_declaration_specifier storage_class type_qualifier_list
	2445	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2446	\| basic_declaration_specifier storage_class basic_type_specifier
	2447	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2448	;
[51b73452]	2449
	2450	basic_type_specifier:
[84d58c5]	2451	direct_type
[f38e7d7]	2452	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2453	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2454	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2455	;
[51b73452]	2456
[84d58c5]	2457	direct_type:
[4d51835]	2458	basic_type_name
	2459	\| type_qualifier_list basic_type_name
	2460	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2461	\| direct_type type_qualifier
[4d51835]	2462	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2463	\| direct_type basic_type_name
[4d51835]	2464	{ $$ = $1->addType( $2 ); }
	2465	;
[51b73452]	2466
[84d58c5]	2467	indirect_type:
[b6ad601]	2468	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2469	{ $$ = $3; }
[b6ad601]	2470	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2471	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2472	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2473	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2474	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2475	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2476	\| ZERO_T // CFA
[e048ece]	2477	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2478	\| ONE_T // CFA
[e048ece]	2479	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2480	;
[51b73452]	2481
[d0ffed1]	2482	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2483	sue_type_specifier
	2484	\| declaration_qualifier_list sue_type_specifier
	2485	{ $$ = $2->addQualifiers( $1 ); }
	2486	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2487	{ $$ = $1->addQualifiers( $2 ); }
	2488	\| sue_declaration_specifier storage_class type_qualifier_list
	2489	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2490	;
[51b73452]	2491
[d0ffed1]	2492	sue_type_specifier: // struct, union, enum + type specifier
	2493	elaborated_type
[fdca7c6]	2494	\| type_qualifier_list
	2495	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2496	elaborated_type
	2497	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2498	\| sue_type_specifier type_qualifier
[284da8c]	2499	{
	2500	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2501	$$ = $1->addQualifiers( $2 );
	2502	}
[4d51835]	2503	;
[51b73452]	2504
[d0ffed1]	2505	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2506	sue_type_specifier_nobody
	2507	\| declaration_qualifier_list sue_type_specifier_nobody
	2508	{ $$ = $2->addQualifiers( $1 ); }
	2509	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2510	{ $$ = $1->addQualifiers( $2 ); }
	2511	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2512	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2513	;
	2514
	2515	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2516	elaborated_type_nobody
	2517	\| type_qualifier_list elaborated_type_nobody
	2518	{ $$ = $2->addQualifiers( $1 ); }
	2519	\| sue_type_specifier_nobody type_qualifier
	2520	{ $$ = $1->addQualifiers( $2 ); }
	2521	;
	2522
[84d58c5]	2523	type_declaration_specifier:
	2524	type_type_specifier
	2525	\| declaration_qualifier_list type_type_specifier
[4d51835]	2526	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2527	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2528	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2529	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2530	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2531	;
[b87a5ed]	2532
[84d58c5]	2533	type_type_specifier: // typedef types
	2534	type_name
[6cef439]	2535	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2536	\| type_qualifier_list type_name
[6cef439]	2537	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2538	\| type_type_specifier type_qualifier
	2539	{ $$ = $1->addQualifiers( $2 ); }
	2540	;
	2541
	2542	type_name:
[4d51835]	2543	TYPEDEFname
[6cef439]	2544	{ $$ = build_typedef( $1 ); }
[84d58c5]	2545	\| '.' TYPEDEFname
[6cef439]	2546	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2547	\| type_name '.' TYPEDEFname
[6cef439]	2548	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2549	\| typegen_name
	2550	\| '.' typegen_name
[6cef439]	2551	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2552	\| type_name '.' typegen_name
[6cef439]	2553	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2554	;
	2555
	2556	typegen_name: // CFA
[65d6de4]	2557	TYPEGENname
[6cef439]	2558	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2559	\| TYPEGENname '(' ')'
[6cef439]	2560	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2561	\| TYPEGENname '(' type_list ')'
[6cef439]	2562	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2563	;
[51b73452]	2564
[d0ffed1]	2565	elaborated_type: // struct, union, enum
[c0aa336]	2566	aggregate_type
	2567	\| enum_type
[4d51835]	2568	;
[51b73452]	2569
[d0ffed1]	2570	elaborated_type_nobody: // struct, union, enum - {...}
	2571	aggregate_type_nobody
	2572	\| enum_type_nobody
	2573	;
	2574
[7e13b11]	2575	// ************************ AGGREGATE *****************************
	2576
[d0ffed1]	2577	aggregate_type: // struct, union
[fc20514]	2578	aggregate_key attribute_list_opt
	2579	{ forall = false; } // reset
	2580	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2581	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2582	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2583	{
[71a422a]	2584	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2585	forall = false; // reset
	2586	}
[284da8c]	2587	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2588	{
	2589	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2590	}
[f9c3100]	2591	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2592	{
[71a422a]	2593	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2594	forall = false; // reset
	2595	}
[284da8c]	2596	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2597	{
[6cef439]	2598	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2599	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2600	}
	2601	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2602	{
[71a422a]	2603	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2604	forall = false; // reset
	2605	}
	2606	'{' field_declaration_list_opt '}' type_parameters_opt
	2607	{
[6cef439]	2608	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2609	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2610	}
[d0ffed1]	2611	\| aggregate_type_nobody
	2612	;
	2613
[284da8c]	2614	type_parameters_opt:
	2615	// empty
	2616	{ $$ = nullptr; } %prec '}'
	2617	\| '(' type_list ')'
	2618	{ $$ = $2; }
	2619	;
	2620
[d0ffed1]	2621	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2622	aggregate_key attribute_list_opt identifier
[84d58c5]	2623	{
[71a422a]	2624	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2625	forall = false; // reset
[84d58c5]	2626	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2627	}
[73f04fd]	2628	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2629	{
[fc20514]	2630	forall = false; // reset
[65d6de4]	2631	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2632	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2633	// delete newFromTypeGen.
[6cef439]	2634	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2635	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2636	} else {
[6cef439]	2637	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2638	$3->symbolic.name = nullptr; // copied to $$
	2639	$3->symbolic.actuals = nullptr;
[9fa61f5]	2640	delete $3;
	2641	}
[65d6de4]	2642	}
[4d51835]	2643	;
[51b73452]	2644
	2645	aggregate_key:
[e307e12]	2646	aggregate_data
	2647	\| aggregate_control
	2648	;
	2649
	2650	aggregate_data:
[1f652a7]	2651	STRUCT vtable_opt
[bb7422a]	2652	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2653	\| UNION
[bb7422a]	2654	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2655	\| EXCEPTION // CFA
[bb7422a]	2656	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2657	;
	2658
	2659	aggregate_control: // CFA
[cbbd8fd7]	2660	MONITOR
[bb7422a]	2661	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2662	\| MUTEX STRUCT
[bb7422a]	2663	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2664	\| GENERATOR
[bb7422a]	2665	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2666	\| MUTEX GENERATOR
[bb7422a]	2667	{
	2668	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2669	$$ = ast::AggregateDecl::NoAggregate;
	2670	}
[d3bc0ad]	2671	\| COROUTINE
[bb7422a]	2672	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2673	\| MUTEX COROUTINE
[bb7422a]	2674	{
	2675	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2676	$$ = ast::AggregateDecl::NoAggregate;
	2677	}
[d3bc0ad]	2678	\| THREAD
[bb7422a]	2679	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2680	\| MUTEX THREAD
[bb7422a]	2681	{
	2682	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2683	$$ = ast::AggregateDecl::NoAggregate;
	2684	}
[4d51835]	2685	;
[51b73452]	2686
[7fdb94e1]	2687	field_declaration_list_opt:
[5d125e4]	2688	// empty
[58dd019]	2689	{ $$ = nullptr; }
[7fdb94e1]	2690	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2691	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2692	;
[51b73452]	2693
	2694	field_declaration:
[679e644]	2695	type_specifier field_declaring_list_opt ';'
[d8454b9]	2696	{
	2697	$$ = fieldDecl( $1, $2 );
	2698	}
[0442f93f]	2699	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2700	{
[253d0b4]	2701	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2702	$$ = nullptr;
	2703	}
[679e644]	2704	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2705	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2706	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2707	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2708	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2709	{
[dea36ee]	2710	if ( ! $3 ) { // field declarator ?
	2711	$3 = DeclarationNode::newName( nullptr );
	2712	} // if
[679a260]	2713	$3->inLine = true;
[679e644]	2714	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2715	distInl( $3 );
[8f91c9ae]	2716	}
[e307e12]	2717	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2718	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2719	\| typedef_declaration ';' // CFA
	2720	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2721	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2722	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2723	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2724	{ $$ = $2; } // mark all fields in list
[46fa473]	2725	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2726	\| static_assert ';' // C11
[4d51835]	2727	;
[b87a5ed]	2728
[679e644]	2729	field_declaring_list_opt:
	2730	// empty
	2731	{ $$ = nullptr; }
[a16f2b6]	2732	\| field_declaring_list
	2733	;
	2734
	2735	field_declaring_list:
	2736	field_declarator
[12f1156]	2737	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2738	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2739	;
[51b73452]	2740
[679e644]	2741	field_declarator:
[e07caa2]	2742	bit_subrange_size // C special case, no field name
[4d51835]	2743	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2744	\| variable_declarator bit_subrange_size_opt
[679e644]	2745	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2746	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2747	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2748	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2749	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2750	\| function_type_redeclarator bit_subrange_size_opt
	2751	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2752	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2753	;
	2754
[e07caa2]	2755	field_abstract_list_opt:
	2756	// empty
[dea36ee]	2757	{ $$ = nullptr; }
[e07caa2]	2758	\| field_abstract
	2759	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2760	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2761	;
	2762
[e07caa2]	2763	field_abstract:
[f7e4db27]	2764	// no bit fields
[e07caa2]	2765	variable_abstract_declarator
[679e644]	2766	;
	2767
	2768	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2769	// bit-fields are handled by C declarations
[033ff37]	2770	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2771	{ $$ = $1->addName( $2 ); }
[033ff37]	2772	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2773	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2774	;
	2775
	2776	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2777	// bit-fields are handled by C declarations
[679e644]	2778	cfa_abstract_declarator_tuple
	2779	\| cfa_field_abstract_list ','
[dc3fbe5]	2780	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2781	;
[51b73452]	2782
	2783	bit_subrange_size_opt:
[4d51835]	2784	// empty
[58dd019]	2785	{ $$ = nullptr; }
[4d51835]	2786	\| bit_subrange_size
	2787	;
[51b73452]	2788
	2789	bit_subrange_size:
[c786e1d]	2790	':' assignment_expression
[4d51835]	2791	{ $$ = $2; }
	2792	;
[51b73452]	2793
[7e13b11]	2794	// ************************ ENUMERATION *****************************
[647e2ea]	2795
[9e7236f4]	2796	enum_type:
[30aab55]	2797	// anonymous, no type name
	2798	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2799	{
	2800	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2801	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2802	} // if
	2803	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2804	}
[42422fb]	2805	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2806	{
[42422fb]	2807	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2808	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2809	}
[42422fb]	2810	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2811	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2812	} // if
	2813	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2814	}
[30aab55]	2815
[42422fb]	2816	// named type
[30aab55]	2817	\| ENUM attribute_list_opt identifier
	2818	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2819	hide_opt '{' enumerator_list comma_opt '}'
	2820	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2821	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2822	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2823	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2824	{
[42422fb]	2825	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2826	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2827	}
[42422fb]	2828	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2829	}
[c7f12a4]	2830	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2831	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2832	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2833	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2834
	2835	// forward declaration
[d0ffed1]	2836	\| enum_type_nobody
	2837	;
	2838
[42422fb]	2839	enumerator_type:
	2840	'(' ')' // pure enumeration
	2841	{ $$ = nullptr; }
	2842	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2843	{ $$ = $2; }
	2844	;
	2845
[c7f12a4]	2846	hide_opt:
	2847	// empty
[7cf8006]	2848	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2849	\| '!'
[7cf8006]	2850	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2851	;
	2852
[d0ffed1]	2853	enum_type_nobody: // enum - {...}
[f9c3100]	2854	ENUM attribute_list_opt identifier
[71a422a]	2855	{
	2856	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2857	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2858	}
[0bd46fd]	2859	\| ENUM attribute_list_opt type_name
[71a422a]	2860	{
[6cef439]	2861	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2862	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2863	}
[4d51835]	2864	;
[51b73452]	2865
	2866	enumerator_list:
[2ca7fc2]	2867	// empty
	2868	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2869	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2870	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2871	\| INLINE type_name
[d9bad51]	2872	{
	2873	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2874	$2->symbolic.name = nullptr;
	2875	delete $2;
	2876	}
[7cf8006]	2877	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2878	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2879	\| enumerator_list ',' INLINE type_name
	2880	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2881	;
[51b73452]	2882
[7cf8006]	2883	visible_hide_opt:
[c7f12a4]	2884	hide_opt
	2885	\| '^'
[7cf8006]	2886	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2887	;
	2888
[51b73452]	2889	enumerator_value_opt:
[4d51835]	2890	// empty
[58dd019]	2891	{ $$ = nullptr; }
[7991c7d]	2892	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2893	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2894	// \| simple_assignment_operator initializer
	2895	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2896	;
[51b73452]	2897
[7e13b11]	2898	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2899
	2900	parameter_list_ellipsis_opt:
	2901	// empty
[db19e1d]	2902	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[647e2ea]	2903	\| ELLIPSIS
	2904	{ $$ = nullptr; }
	2905	\| parameter_list
	2906	\| parameter_list ',' ELLIPSIS
	2907	{ $$ = $1->addVarArgs(); }
	2908	;
	2909
	2910	parameter_list: // abstract + real
	2911	parameter_declaration
	2912	\| abstract_parameter_declaration
	2913	\| parameter_list ',' parameter_declaration
	2914	{ $$ = $1->set_last( $3 ); }
	2915	\| parameter_list ',' abstract_parameter_declaration
	2916	{ $$ = $1->set_last( $3 ); }
	2917	;
	2918
	2919	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2920	// empty
[e048ece]	2921	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2922	\| ELLIPSIS
[58dd019]	2923	{ $$ = nullptr; }
[c0aa336]	2924	\| cfa_parameter_list
[647e2ea]	2925	\| cfa_abstract_parameter_list
	2926	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2927	{ $$ = $1->set_last( $3 ); }
	2928	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2929	{ $$ = $1->addVarArgs(); }
[647e2ea]	2930	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2931	{ $$ = $1->addVarArgs(); }
	2932	;
[b87a5ed]	2933
[c0aa336]	2934	cfa_parameter_list: // CFA
	2935	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2936	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2937	cfa_parameter_declaration
[647e2ea]	2938	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2939	{ $$ = $1->set_last( $3 ); }
	2940	\| cfa_parameter_list ',' cfa_parameter_declaration
	2941	{ $$ = $1->set_last( $3 ); }
	2942	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2943	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2944	;
[b87a5ed]	2945
[c0aa336]	2946	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2947	cfa_abstract_parameter_declaration
[647e2ea]	2948	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2949	{ $$ = $1->set_last( $3 ); }
[4d51835]	2950	;
[51b73452]	2951
[de62360d]	2952	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2953	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2954
[647e2ea]	2955	parameter_declaration:
	2956	// No SUE declaration in parameter list.
	2957	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2958	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2959	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2960	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2961	;
	2962
	2963	abstract_parameter_declaration:
	2964	declaration_specifier_nobody default_initializer_opt
	2965	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2966	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2967	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2968	;
	2969
[c0aa336]	2970	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2971	parameter_declaration
[5a51798]	2972	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2973	{ $$ = $1->addName( $2 ); }
[5a51798]	2974	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2975	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2976	{ $$ = $1->addName( $2 ); }
[5a51798]	2977	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2978	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2979	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2980	;
[b87a5ed]	2981
[c0aa336]	2982	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2983	abstract_parameter_declaration
[c0aa336]	2984	\| cfa_identifier_parameter_declarator_no_tuple
	2985	\| cfa_abstract_tuple
	2986	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2987	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2988	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2989	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2990	;
[51b73452]	2991
[c11e31c]	2992	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2993	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2994	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2995
[b87a5ed]	2996	identifier_list: // K&R-style parameter list => no types
[033ff37]	2997	identifier
[4d51835]	2998	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2999	\| identifier_list ',' identifier
[dc3fbe5]	3000	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	3001	;
[51b73452]	3002
[84d58c5]	3003	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	3004	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	3005	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	3006	\| type_specifier abstract_declarator
[4d51835]	3007	{ $$ = $2->addType( $1 ); }
	3008	;
[b87a5ed]	3009
[84d58c5]	3010	type: // typeof, assertion
	3011	type_no_function
[c0aa336]	3012	\| cfa_abstract_function // CFA
[4d51835]	3013	;
[51b73452]	3014
	3015	initializer_opt:
[4d51835]	3016	// empty
[58dd019]	3017	{ $$ = nullptr; }
[f9c3100]	3018	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3019	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3020	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3021	;
[51b73452]	3022
	3023	initializer:
[de62360d]	3024	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3025	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3026	;
[51b73452]	3027
[7fdb94e1]	3028	initializer_list_opt:
[097e2b0]	3029	// empty
[58dd019]	3030	{ $$ = nullptr; }
[097e2b0]	3031	\| initializer
[4d51835]	3032	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3033	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3034	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3035	;
[b87a5ed]	3036
[de62360d]	3037	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3038	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3039	//
[b87a5ed]	3040	// int x[10] = { [1] = 3 };
[c11e31c]	3041	//
[de62360d]	3042	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3043	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3044	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3045	// shift/reduce conflicts
[51b73452]	3046
	3047	designation:
[1a8b17a]	3048	designator_list '=' // C99, CFA uses ":" instead of "="
	3049	\| identifier_at ':' // GCC, field name, obsolete since GCC 2.5
[bb7422a]	3050	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3051	;
[51b73452]	3052
[b87a5ed]	3053	designator_list: // C99
[4d51835]	3054	designator
[2871210]	3055	\| designator_list designator
[b93c544]	3056	{ $$ = $1->set_last( $2 ); }
[4d51835]	3057	;
[51b73452]	3058
	3059	designator:
[e16eb460]	3060	'.' identifier_at // C99, field name
[bb7422a]	3061	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[1a8b17a]	3062	\| '[' constant_expression ']' // C99, single array element
[917f67dd]	3063	{ $$ = $2; }
	3064	\| '[' subrange ']' // CFA, multiple array elements
	3065	{ $$ = $2; }
	3066	\| '[' constant_expression ELLIPSIS constant_expression ']' // GCC, multiple array elements
	3067	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $2 ), maybeMoveBuild( $4 ) ) ); }
	3068	\| '.' '[' field_name_list ']' // CFA, tuple field selector
[d1625f8]	3069	{ $$ = $3; }
[4d51835]	3070	;
[51b73452]	3071
[de62360d]	3072	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3073	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3074	//
	3075	// Overloading: function, data, and operator identifiers may be overloaded.
	3076	//
[3ca7ef3]	3077	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3078	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3079	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3080	//
[de62360d]	3081	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3082	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3083	//
	3084	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3085	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3086	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3087	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3088	// on type arguments of polymorphic functions.
[c11e31c]	3089
[b87a5ed]	3090	type_parameter_list: // CFA
[67cf18c]	3091	type_parameter
	3092	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3093	{ $$ = $1->set_last( $3 ); }
[4d51835]	3094	;
[b87a5ed]	3095
[84d58c5]	3096	type_initializer_opt: // CFA
	3097	// empty
	3098	{ $$ = nullptr; }
	3099	\| '=' type
	3100	{ $$ = $2; }
	3101	;
	3102
[b87a5ed]	3103	type_parameter: // CFA
[033ff37]	3104	type_class identifier_or_type_name
[408ab79]	3105	{
[71a422a]	3106	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3107	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3108	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3109	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3110	}
[5a51798]	3111	type_initializer_opt assertion_list_opt
[67cf18c]	3112	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3113	\| identifier_or_type_name new_type_class
[71a422a]	3114	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3115	type_initializer_opt assertion_list_opt
	3116	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3117	\| '[' identifier_or_type_name ']'
[b66d14a]	3118	{
[71a422a]	3119	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3120	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3121	}
[5a51798]	3122	// \| type_specifier identifier_parameter_declarator
[9997fee]	3123	\| assertion_list
[bb7422a]	3124	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3125	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3126	{
	3127	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3128	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3129	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3130	}
[4d51835]	3131	;
[b87a5ed]	3132
[5a51798]	3133	new_type_class: // CFA
	3134	// empty
[bb7422a]	3135	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3136	\| '&'
[bb7422a]	3137	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3138	\| '*'
[7e13b11]	3139	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3140	// \| '(' '*' ')' // Gregor made me do it
	3141	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3142	\| ELLIPSIS
[bb7422a]	3143	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3144	;
	3145
[b87a5ed]	3146	type_class: // CFA
[4040425]	3147	OTYPE
[bb7422a]	3148	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3149	\| DTYPE
[bb7422a]	3150	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3151	\| FTYPE
[bb7422a]	3152	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3153	\| TTYPE
[bb7422a]	3154	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3155	;
[b87a5ed]	3156
	3157	assertion_list_opt: // CFA
[4d51835]	3158	// empty
[58dd019]	3159	{ $$ = nullptr; }
[9997fee]	3160	\| assertion_list
	3161	;
	3162
	3163	assertion_list: // CFA
	3164	assertion
	3165	\| assertion_list assertion
[dc3fbe5]	3166	{ $$ = $1->set_last( $2 ); }
[4d51835]	3167	;
[b87a5ed]	3168
	3169	assertion: // CFA
[033ff37]	3170	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3171	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3172	\| '\|' '{' trait_declaration_list '}'
	3173	{ $$ = $3; }
[35718a9]	3174	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3175	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3176	;
[b87a5ed]	3177
[84d58c5]	3178	type_list: // CFA
	3179	type
[bb7422a]	3180	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3181	\| assignment_expression
[84d58c5]	3182	\| type_list ',' type
[b93c544]	3183	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3184	\| type_list ',' assignment_expression
[b93c544]	3185	{ $$ = $1->set_last( $3 ); }
[4d51835]	3186	;
[b87a5ed]	3187
	3188	type_declaring_list: // CFA
[4040425]	3189	OTYPE type_declarator
[4d51835]	3190	{ $$ = $2; }
[4040425]	3191	\| storage_class_list OTYPE type_declarator
[4d51835]	3192	{ $$ = $3->addQualifiers( $1 ); }
	3193	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3194	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3195	;
[b87a5ed]	3196
	3197	type_declarator: // CFA
[4d51835]	3198	type_declarator_name assertion_list_opt
	3199	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3200	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3201	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3202	;
[b87a5ed]	3203
	3204	type_declarator_name: // CFA
[033ff37]	3205	identifier_or_type_name
[4d51835]	3206	{
[71a422a]	3207	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3208	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3209	}
[033ff37]	3210	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3211	{
[71a422a]	3212	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3213	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3214	}
	3215	;
[b87a5ed]	3216
[4040425]	3217	trait_specifier: // CFA
[033ff37]	3218	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3219	{
[3d937e2]	3220	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3221	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3222	}
	3223	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3224	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3225	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3226	{
[3d937e2]	3227	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3228	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3229	}
[206ecae]	3230	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3231	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3232	;
[b87a5ed]	3233
[84d58c5]	3234	trait_declaration_list: // CFA
[4040425]	3235	trait_declaration
[206ecae]	3236	\| trait_declaration_list trait_declaration
	3237	{ $$ = $1->set_last( $2 ); }
[4d51835]	3238	;
[b87a5ed]	3239
[84d58c5]	3240	trait_declaration: // CFA
[13e8427]	3241	cfa_trait_declaring_list ';'
	3242	\| trait_declaring_list ';'
[4d51835]	3243	;
[b87a5ed]	3244
[c0aa336]	3245	cfa_trait_declaring_list: // CFA
	3246	cfa_variable_specifier
	3247	\| cfa_function_specifier
[206ecae]	3248	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3249	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3250	;
[b87a5ed]	3251
[4040425]	3252	trait_declaring_list: // CFA
[4941716]	3253	// Cannot declare an aggregate or enumeration in a trait.
	3254	type_specifier_nobody declarator
[7fdb94e1]	3255	{ $$ = $2->addType( $1 ); }
[206ecae]	3256	\| trait_declaring_list ',' declarator
	3257	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4941716]	3258	\| error
	3259	{ SemanticError( yylloc, "Possible cause is declaring an aggregate or enumeration type in a trait." ); $$ = nullptr; }
[4d51835]	3260	;
[51b73452]	3261
[e1d66c84]	3262	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3263
	3264	translation_unit:
[3d56d15b]	3265	// empty, input file
[4d51835]	3266	\| external_definition_list
[12f1156]	3267	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3268	;
[51b73452]	3269
	3270	external_definition_list:
[35718a9]	3271	push external_definition pop
	3272	{ $$ = $2; }
[fc20514]	3273	\| external_definition_list push external_definition pop
[dc3fbe5]	3274	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3275	;
[51b73452]	3276
	3277	external_definition_list_opt:
[4d51835]	3278	// empty
[58dd019]	3279	{ $$ = nullptr; }
[3d56d15b]	3280	\| external_definition_list
	3281	;
	3282
	3283	up:
[fc20514]	3284	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3285	;
	3286
	3287	down:
	3288	{ typedefTable.down(); }
[4d51835]	3289	;
[51b73452]	3290
	3291	external_definition:
[2d019af]	3292	DIRECTIVE
[bb7422a]	3293	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3294	\| declaration
[1a73dbb]	3295	{
	3296	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3297	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3298	// disallowed at the moment.
[4eb3a7c5]	3299	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3300	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3301	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3302	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3303	}
	3304	}
	3305	}
[996c8ed]	3306	\| IDENTIFIER IDENTIFIER
	3307	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3308	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3309	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3310	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3311	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3312	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3313	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3314	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3315	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3316	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3317	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3318	\| external_function_definition
[ecae5860]	3319	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3320	{
	3321	distExt( $2 ); // mark all fields in list
	3322	$$ = $2;
	3323	}
[e994912]	3324	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3325	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3326	\| EXTERN STRINGliteral
	3327	{
	3328	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3329	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3330	}
[ae2f2ae]	3331	up external_definition down
[aac37fa]	3332	{
	3333	linkage = linkageStack.top();
	3334	linkageStack.pop();
	3335	$$ = $5;
	3336	}
[c0aa336]	3337	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3338	{
[3b8e52c]	3339	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3340	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3341	}
[3d56d15b]	3342	'{' up external_definition_list_opt down '}'
[4d51835]	3343	{
	3344	linkage = linkageStack.top();
	3345	linkageStack.pop();
[3d56d15b]	3346	$$ = $6;
[8e9cbb2]	3347	}
[7e13b11]	3348	// global distribution
[9997fee]	3349	\| type_qualifier_list
	3350	{
[55266c7]	3351	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3352	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3353	}
[fc20514]	3354	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3355	}
	3356	'{' up external_definition_list_opt down '}' // CFA, namespace
	3357	{
[4c3ee8d]	3358	distQual( $5, $1 );
[9fd9d015]	3359	forall = false;
[3d56d15b]	3360	$$ = $5;
[9997fee]	3361	}
	3362	\| declaration_qualifier_list
	3363	{
[55266c7]	3364	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3365	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3366	}
[fc20514]	3367	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3368	}
	3369	'{' up external_definition_list_opt down '}' // CFA, namespace
	3370	{
[4c3ee8d]	3371	distQual( $5, $1 );
[9fd9d015]	3372	forall = false;
[3d56d15b]	3373	$$ = $5;
[9997fee]	3374	}
	3375	\| declaration_qualifier_list type_qualifier_list
	3376	{
[55266c7]	3377	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3378	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3379	}
[b2ddaf3]	3380	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3381	}
[3d56d15b]	3382	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3383	{
[284da8c]	3384	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3385	forall = false;
[3d56d15b]	3386	$$ = $6;
[9997fee]	3387	}
[b9f6791f]	3388	\| ';' // empty declaration
	3389	{ $$ = nullptr; }
[4d51835]	3390	;
	3391
	3392	external_function_definition:
	3393	function_definition
[de62360d]	3394	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3395	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3396	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3397	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3398	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3399	\| function_declarator compound_statement
[c0a33d2]	3400	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3401	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3402	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3403	;
[51b73452]	3404
[8b47e50]	3405	with_clause_opt:
	3406	// empty
[9997fee]	3407	{ $$ = nullptr; forall = false; }
[e78966e]	3408	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3409	{
	3410	$$ = $3; forall = false;
	3411	if ( $5 ) {
[253d0b4]	3412	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3413	$$ = nullptr;
	3414	} // if
	3415	}
[8b47e50]	3416	;
	3417
[51b73452]	3418	function_definition:
[8b47e50]	3419	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3420	{
[481115f]	3421	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3422	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3423	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3424	$$ = $1;
[4d51835]	3425	}
[8b47e50]	3426	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3427	{
[c38ae92]	3428	rebindForall( $1, $2 );
[7fdb94e1]	3429	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3430	}
[1f771fc]	3431	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3432	{
	3433	rebindForall( $1, $2 );
[5fcba14]	3434	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3435	}
[a16a7ec]	3436	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3437	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3438	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3439	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3440	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3441	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3442	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3443	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3444	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3445
	3446	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3447	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3448	{
[c38ae92]	3449	rebindForall( $1, $2 );
[5fcba14]	3450	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3451	}
[a16a7ec]	3452	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3453	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3454	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3455	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3456	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3457	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3458	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3459	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3460	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3461	;
[51b73452]	3462
	3463	declarator:
[4d51835]	3464	variable_declarator
[c6b1105]	3465	\| variable_type_redeclarator
[4d51835]	3466	\| function_declarator
[1f771fc]	3467	\| function_type_redeclarator
[4d51835]	3468	;
[51b73452]	3469
	3470	subrange:
[4d51835]	3471	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3472	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3473	;
[b87a5ed]	3474
[7e13b11]	3475	// ************************** ASM ***************************
	3476
[b87a5ed]	3477	asm_name_opt: // GCC
[4d51835]	3478	// empty
[58dd019]	3479	{ $$ = nullptr; }
	3480	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3481	{
	3482	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3483	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3484	$$ = name->addQualifiers( $5 );
	3485	}
[4d51835]	3486	;
[b87a5ed]	3487
[7e13b11]	3488	// ************************** ATTRIBUTE ***************************
	3489
[b87a5ed]	3490	attribute_list_opt: // GCC
[4d51835]	3491	// empty
[58dd019]	3492	{ $$ = nullptr; }
[4d51835]	3493	\| attribute_list
	3494	;
[b87a5ed]	3495
	3496	attribute_list: // GCC
[4d51835]	3497	attribute
	3498	\| attribute_list attribute
[1db21619]	3499	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3500	;
[b87a5ed]	3501
	3502	attribute: // GCC
[44a81853]	3503	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3504	{ $$ = $4; }
[647e2ea]	3505	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3506	{ $$ = $3; }
[a16f2b6]	3507	\| ATTR attribute_name_list ']' // CFA, @[...]
	3508	{ $$ = $2; }
	3509	\| C23_ATTRIBUTE // C23, [[...]], see lexer
[1a8b17a]	3510	{ $$ = DeclarationNode::newAttribute( $1 ); }
[4d51835]	3511	;
[b87a5ed]	3512
[44a81853]	3513	attribute_name_list: // GCC
	3514	attribute_name
	3515	\| attribute_name_list ',' attribute_name
[c0aa336]	3516	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3517	;
[b87a5ed]	3518
[44a81853]	3519	attribute_name: // GCC
[4d51835]	3520	// empty
[44a81853]	3521	{ $$ = nullptr; }
	3522	\| attr_name
	3523	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3524	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3525	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3526	;
[b87a5ed]	3527
[44a81853]	3528	attr_name: // GCC
[12f1156]	3529	identifier_or_type_name
[114014c]	3530	\| FALLTHROUGH
	3531	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3532	\| CONST
[9ff56e7]	3533	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3534	;
[51b73452]	3535
[c11e31c]	3536	// ============================================================================
[de62360d]	3537	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3538	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3539	// in:
[c11e31c]	3540	//
[b87a5ed]	3541	// int (*f())[10] { ... };
	3542	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3543	//
[de62360d]	3544	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3545	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3546	// ============================================================================
	3547
	3548	// ----------------------------------------------------------------------------
[de62360d]	3549	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3550	// to define a variable or function prototype, e.g.:
[c11e31c]	3551	//
[b87a5ed]	3552	// valid declaration invalid definition
	3553	// ----------------- ------------------
[4d51835]	3554	// int f; int f {}
	3555	// int f; int f {}
[b87a5ed]	3556	// int f[10]; int f[10] {}
[4d51835]	3557	// int (f)(int); int (f)(int) {}
[c11e31c]	3558	//
[de62360d]	3559	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3560	// variable_declarator and function_declarator.
[c11e31c]	3561	// ----------------------------------------------------------------------------
	3562
[de62360d]	3563	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3564	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3565
[5e25953]	3566	paren_identifier:
[e16eb460]	3567	identifier_at
[5e25953]	3568	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3569	\| '?' identifier
[daa4cc1]	3570	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3571	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3572	\| '(' paren_identifier ')' // redundant parenthesis
	3573	{ $$ = $2; }
	3574	;
	3575
[51b73452]	3576	variable_declarator:
[4d51835]	3577	paren_identifier attribute_list_opt
[1db21619]	3578	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3579	\| variable_ptr
	3580	\| variable_array attribute_list_opt
[1db21619]	3581	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3582	\| variable_function attribute_list_opt
[1db21619]	3583	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3584	;
[51b73452]	3585
	3586	variable_ptr:
[dd51906]	3587	ptrref_operator variable_declarator
[a5f9444]	3588	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3589	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3590	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3591	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3592	{ $$ = $2->addQualifiers( $4 ); }
	3593	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3594	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3595	;
[51b73452]	3596
	3597	variable_array:
[4d51835]	3598	paren_identifier array_dimension
	3599	{ $$ = $1->addArray( $2 ); }
	3600	\| '(' variable_ptr ')' array_dimension
	3601	{ $$ = $2->addArray( $4 ); }
[5e25953]	3602	\| '(' attribute_list variable_ptr ')' array_dimension
	3603	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3604	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3605	{ $$ = $2->addArray( $4 ); }
[5e25953]	3606	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3607	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3608	\| '(' variable_array ')' // redundant parenthesis
	3609	{ $$ = $2; }
[5e25953]	3610	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3611	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3612	;
[51b73452]	3613
	3614	variable_function:
[647e2ea]	3615	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3616	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3617	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3618	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3619	\| '(' variable_function ')' // redundant parenthesis
	3620	{ $$ = $2; }
[5e25953]	3621	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3622	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3623	;
[51b73452]	3624
[c6b1105]	3625	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3626	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3627	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3628
	3629	function_declarator:
[4d51835]	3630	function_no_ptr attribute_list_opt
[1db21619]	3631	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3632	\| function_ptr
	3633	\| function_array attribute_list_opt
[1db21619]	3634	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3635	;
[51b73452]	3636
	3637	function_no_ptr:
[647e2ea]	3638	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3639	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3640	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3641	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3642	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3643	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3644	\| '(' function_no_ptr ')' // redundant parenthesis
	3645	{ $$ = $2; }
[5e25953]	3646	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3647	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3648	;
[51b73452]	3649
	3650	function_ptr:
[dd51906]	3651	ptrref_operator function_declarator
[a5f9444]	3652	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3653	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3654	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3655	\| '(' function_ptr ')' attribute_list_opt
	3656	{ $$ = $2->addQualifiers( $4 ); }
	3657	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3658	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3659	;
[51b73452]	3660
	3661	function_array:
[4d51835]	3662	'(' function_ptr ')' array_dimension
	3663	{ $$ = $2->addArray( $4 ); }
[5e25953]	3664	\| '(' attribute_list function_ptr ')' array_dimension
	3665	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3666	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3667	{ $$ = $2->addArray( $4 ); }
[5e25953]	3668	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3669	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3670	\| '(' function_array ')' // redundant parenthesis
	3671	{ $$ = $2; }
[5e25953]	3672	\| '(' attribute_list function_array ')' // redundant parenthesis
	3673	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3674	;
[51b73452]	3675
[c0aa336]	3676	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3677	//
	3678	// f( a, b, c ) int a, *b, c[]; {}
	3679	//
	3680	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3681	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3682
[c0aa336]	3683	KR_function_declarator:
	3684	KR_function_no_ptr
	3685	\| KR_function_ptr
	3686	\| KR_function_array
[4d51835]	3687	;
[51b73452]	3688
[c0aa336]	3689	KR_function_no_ptr:
[4d51835]	3690	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3691	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3692	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3693	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3694	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3695	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3696	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3697	{ $$ = $2; }
[5e25953]	3698	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3699	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3700	;
[51b73452]	3701
[c0aa336]	3702	KR_function_ptr:
	3703	ptrref_operator KR_function_declarator
[a5f9444]	3704	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3705	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3706	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3707	\| '(' KR_function_ptr ')'
[4d51835]	3708	{ $$ = $2; }
[5e25953]	3709	\| '(' attribute_list KR_function_ptr ')'
	3710	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3711	;
[51b73452]	3712
[c0aa336]	3713	KR_function_array:
	3714	'(' KR_function_ptr ')' array_dimension
[4d51835]	3715	{ $$ = $2->addArray( $4 ); }
[5e25953]	3716	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3717	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3718	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3719	{ $$ = $2->addArray( $4 ); }
[5e25953]	3720	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3721	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3722	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3723	{ $$ = $2; }
[5e25953]	3724	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3725	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3726	;
[51b73452]	3727
[1f771fc]	3728	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3729	//
[b87a5ed]	3730	// typedef int foo;
	3731	// {
	3732	// int foo; // redefine typedef name in new scope
	3733	// }
[51b73452]	3734
[2871210]	3735	paren_type:
[f9c3100]	3736	typedef_name
[c4f68dc]	3737	{
[f9c3100]	3738	// hide type name in enclosing scope by variable name
[71a422a]	3739	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3740	}
[2871210]	3741	\| '(' paren_type ')'
[4d51835]	3742	{ $$ = $2; }
	3743	;
[51b73452]	3744
[5e25953]	3745	variable_type_redeclarator:
	3746	paren_type attribute_list_opt
	3747	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3748	\| variable_type_ptr
	3749	\| variable_type_array attribute_list_opt
[5e25953]	3750	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3751	\| variable_type_function attribute_list_opt
[5e25953]	3752	{ $$ = $1->addQualifiers( $2 ); }
	3753	;
	3754
[1f771fc]	3755	variable_type_ptr:
[c6b1105]	3756	ptrref_operator variable_type_redeclarator
[a5f9444]	3757	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3758	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3759	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3760	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3761	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3762	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3763	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3764	;
[51b73452]	3765
[1f771fc]	3766	variable_type_array:
[2871210]	3767	paren_type array_dimension
[4d51835]	3768	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3769	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3770	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3771	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3772	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3773	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3774	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3775	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3776	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3777	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3778	{ $$ = $2; }
[1f771fc]	3779	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3780	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3781	;
[51b73452]	3782
[1f771fc]	3783	variable_type_function:
[647e2ea]	3784	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3785	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3786	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3787	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3788	\| '(' variable_type_function ')' // redundant parenthesis
	3789	{ $$ = $2; }
	3790	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3791	{ $$ = $3->addQualifiers( $2 ); }
	3792	;
	3793
	3794	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3795	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3796	// arrays and functions.
	3797
	3798	function_type_redeclarator:
	3799	function_type_no_ptr attribute_list_opt
	3800	{ $$ = $1->addQualifiers( $2 ); }
	3801	\| function_type_ptr
	3802	\| function_type_array attribute_list_opt
	3803	{ $$ = $1->addQualifiers( $2 ); }
	3804	;
	3805
	3806	function_type_no_ptr:
[647e2ea]	3807	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3808	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3809	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3810	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3811	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3812	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3813	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3814	{ $$ = $2; }
[1f771fc]	3815	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3816	{ $$ = $3->addQualifiers( $2 ); }
	3817	;
	3818
	3819	function_type_ptr:
	3820	ptrref_operator function_type_redeclarator
	3821	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3822	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3823	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3824	\| '(' function_type_ptr ')' attribute_list_opt
	3825	{ $$ = $2->addQualifiers( $4 ); }
	3826	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3827	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3828	;
	3829
	3830	function_type_array:
	3831	'(' function_type_ptr ')' array_dimension
	3832	{ $$ = $2->addArray( $4 ); }
	3833	\| '(' attribute_list function_type_ptr ')' array_dimension
	3834	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3835	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3836	{ $$ = $2->addArray( $4 ); }
	3837	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3838	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3839	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3840	{ $$ = $2; }
[1f771fc]	3841	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3842	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3843	;
[51b73452]	3844
[c0aa336]	3845	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3846	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3847	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3848	// pointers to arrays and functions.
[51b73452]	3849
	3850	identifier_parameter_declarator:
[4d51835]	3851	paren_identifier attribute_list_opt
[1db21619]	3852	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3853	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3854	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3855	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3856	\| identifier_parameter_ptr
	3857	\| identifier_parameter_array attribute_list_opt
[1db21619]	3858	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3859	\| identifier_parameter_function attribute_list_opt
[1db21619]	3860	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3861	;
[51b73452]	3862
	3863	identifier_parameter_ptr:
[dd51906]	3864	ptrref_operator identifier_parameter_declarator
[a5f9444]	3865	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3866	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3867	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3868	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3869	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3870	;
[51b73452]	3871
	3872	identifier_parameter_array:
[4d51835]	3873	paren_identifier array_parameter_dimension
	3874	{ $$ = $1->addArray( $2 ); }
	3875	\| '(' identifier_parameter_ptr ')' array_dimension
	3876	{ $$ = $2->addArray( $4 ); }
	3877	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3878	{ $$ = $2->addArray( $4 ); }
	3879	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3880	{ $$ = $2; }
	3881	;
[51b73452]	3882
	3883	identifier_parameter_function:
[647e2ea]	3884	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3885	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3886	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3887	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3888	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3889	{ $$ = $2; }
	3890	;
[b87a5ed]	3891
[de62360d]	3892	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3893	// e.g.:
[c11e31c]	3894	//
[b87a5ed]	3895	// typedef int foo;
[114014c]	3896	// forall( otype T ) struct foo;
[b87a5ed]	3897	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3898	//
[c0aa336]	3899	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3900
[2871210]	3901	type_parameter_redeclarator:
[f9c3100]	3902	typedef_name attribute_list_opt
[1db21619]	3903	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3904	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3905	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3906	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3907	\| type_parameter_ptr
	3908	\| type_parameter_array attribute_list_opt
[1db21619]	3909	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3910	\| type_parameter_function attribute_list_opt
[1db21619]	3911	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3912	;
[51b73452]	3913
[f9c3100]	3914	typedef_name:
[4d51835]	3915	TYPEDEFname
[7fdb94e1]	3916	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3917	\| TYPEGENname
[7fdb94e1]	3918	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3919	;
[51b73452]	3920
[2871210]	3921	type_parameter_ptr:
[dd51906]	3922	ptrref_operator type_parameter_redeclarator
[a5f9444]	3923	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3924	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3925	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3926	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3927	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3928	;
[51b73452]	3929
[2871210]	3930	type_parameter_array:
[f9c3100]	3931	typedef_name array_parameter_dimension
[4d51835]	3932	{ $$ = $1->addArray( $2 ); }
[2871210]	3933	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3934	{ $$ = $2->addArray( $4 ); }
	3935	;
[51b73452]	3936
[2871210]	3937	type_parameter_function:
[7e13b11]	3938	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3939	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3940	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3941	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3942	;
[b87a5ed]	3943
[de62360d]	3944	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3945	// which the type applies, e.g.:
[c11e31c]	3946	//
[b87a5ed]	3947	// sizeof( int );
[c0aa336]	3948	// sizeof( int * );
[b87a5ed]	3949	// sizeof( int [10] );
[c0aa336]	3950	// sizeof( int (*)() );
	3951	// sizeof( int () );
[c11e31c]	3952	//
[de62360d]	3953	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3954	// and functions versus pointers to arrays and functions.
[51b73452]	3955
	3956	abstract_declarator:
[4d51835]	3957	abstract_ptr
	3958	\| abstract_array attribute_list_opt
[1db21619]	3959	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3960	\| abstract_function attribute_list_opt
[1db21619]	3961	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3962	;
[51b73452]	3963
	3964	abstract_ptr:
[dd51906]	3965	ptrref_operator
[a5f9444]	3966	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3967	\| ptrref_operator type_qualifier_list
[ce8c12f]	3968	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3969	\| ptrref_operator abstract_declarator
[a5f9444]	3970	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3971	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3972	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3973	\| '(' abstract_ptr ')' attribute_list_opt
	3974	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3975	;
[51b73452]	3976
	3977	abstract_array:
[4d51835]	3978	array_dimension
	3979	\| '(' abstract_ptr ')' array_dimension
	3980	{ $$ = $2->addArray( $4 ); }
	3981	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3982	{ $$ = $2->addArray( $4 ); }
	3983	\| '(' abstract_array ')' // redundant parenthesis
	3984	{ $$ = $2; }
	3985	;
[51b73452]	3986
	3987	abstract_function:
[7e13b11]	3988	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3989	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3990	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3991	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3992	\| '(' abstract_function ')' // redundant parenthesis
	3993	{ $$ = $2; }
	3994	;
[51b73452]	3995
	3996	array_dimension:
[4d51835]	3997	// Only the first dimension can be empty.
[2871210]	3998	'[' ']'
[a5f9444]	3999	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	4000	\| '[' ']' multi_array_dimension
[a5f9444]	4001	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	4002	// Cannot use constant_expression because of tuples => semantic check
[917f67dd]	4003	\| '[' assignment_expression ',' comma_expression ']' // CFA
	4004	{ $$ = DeclarationNode::newArray( $2, nullptr, false )->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[6a99803]	4005	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	4006
	4007	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	4008	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	4009
[917f67dd]	4010	\| '[' array_type_list ']' // CFA
	4011	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
[4d51835]	4012	\| multi_array_dimension
	4013	;
[51b73452]	4014
[647e2ea]	4015	// array_dimension_list:
	4016	// assignment_expression
	4017	// \| array_dimension_list ',' assignment_expression
	4018	// ;
	4019
[d41735a]	4020	array_type_list:
	4021	basic_type_name
[bb7422a]	4022	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4023	\| type_name
[bb7422a]	4024	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4025	\| assignment_expression upupeq assignment_expression
	4026	\| array_type_list ',' basic_type_name
[b93c544]	4027	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4028	\| array_type_list ',' type_name
[b93c544]	4029	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4030	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4031	;
	4032
	4033	upupeq:
	4034	'~'
	4035	{ $$ = OperKinds::LThan; }
	4036	\| ErangeUpEq
	4037	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4038	;
[d41735a]	4039
[51b73452]	4040	multi_array_dimension:
[917f67dd]	4041	'[' assignment_expression ']'
	4042	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
	4043	\| '[' '*' ']' // C99
[4d51835]	4044	{ $$ = DeclarationNode::newVarArray( 0 ); }
[917f67dd]	4045	\| multi_array_dimension '[' assignment_expression ']'
	4046	{ $$ = $1->addArray( DeclarationNode::newArray( $3, nullptr, false ) ); }
	4047	\| multi_array_dimension '[' '*' ']' // C99
[4d51835]	4048	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4049	;
[51b73452]	4050
[c11e31c]	4051	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4052	// identifier to which the type applies, e.g.:
	4053	//
[c0aa336]	4054	// int f( int ); // not handled here
	4055	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4056	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4057	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4058	//
[de62360d]	4059	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4060	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4061	// parenthesis around a typedef name:
[c0aa336]	4062	//
	4063	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4064	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4065	// not as redundant parentheses around the identifier."
	4066	//
	4067	// For example:
	4068	//
	4069	// typedef float T;
	4070	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4071	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4072	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4073	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4074	//
	4075	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4076	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4077	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4078	// functions.
[51b73452]	4079
[59c7e3e]	4080	abstract_parameter_declarator_opt:
	4081	// empty
	4082	{ $$ = nullptr; }
	4083	\| abstract_parameter_declarator
	4084	;
	4085
[51b73452]	4086	abstract_parameter_declarator:
[4d51835]	4087	abstract_parameter_ptr
[b6b3c42]	4088	\| '&' MUTEX attribute_list_opt
[446740a]	4089	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4090	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4091	\| abstract_parameter_array attribute_list_opt
[1db21619]	4092	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4093	\| abstract_parameter_function attribute_list_opt
[1db21619]	4094	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4095	;
[51b73452]	4096
	4097	abstract_parameter_ptr:
[dd51906]	4098	ptrref_operator
[ce8c12f]	4099	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4100	\| ptrref_operator type_qualifier_list
[ce8c12f]	4101	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4102	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4103	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4104	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4105	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4106	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4107	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4108	;
[51b73452]	4109
	4110	abstract_parameter_array:
[4d51835]	4111	array_parameter_dimension
	4112	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4113	{ $$ = $2->addArray( $4 ); }
	4114	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4115	{ $$ = $2->addArray( $4 ); }
	4116	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4117	{ $$ = $2; }
	4118	;
[51b73452]	4119
	4120	abstract_parameter_function:
[7e13b11]	4121	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4122	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4123	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4124	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4125	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4126	{ $$ = $2; }
	4127	;
[51b73452]	4128
	4129	array_parameter_dimension:
[4d51835]	4130	// Only the first dimension can be empty or have qualifiers.
	4131	array_parameter_1st_dimension
	4132	\| array_parameter_1st_dimension multi_array_dimension
	4133	{ $$ = $1->addArray( $2 ); }
	4134	\| multi_array_dimension
	4135	;
[51b73452]	4136
[c11e31c]	4137	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4138	//
[de62360d]	4139	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4140	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4141
	4142	array_parameter_1st_dimension:
[2871210]	4143	'[' ']'
[a5f9444]	4144	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4145	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4146	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4147	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4148	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4149	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4150	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4151	\| '[' push type_qualifier_list assignment_expression pop ']'
	4152	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4153	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4154	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4155	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4156	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4157	;
[b87a5ed]	4158
[c0aa336]	4159	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4160	//
[71a422a]	4161	// struct S {
	4162	// int;
	4163	// int *;
	4164	// int [10];
	4165	// int (*)();
	4166	// };
[51b73452]	4167
	4168	variable_abstract_declarator:
[4d51835]	4169	variable_abstract_ptr
	4170	\| variable_abstract_array attribute_list_opt
[1db21619]	4171	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4172	\| variable_abstract_function attribute_list_opt
[1db21619]	4173	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4174	;
[51b73452]	4175
	4176	variable_abstract_ptr:
[dd51906]	4177	ptrref_operator
[a5f9444]	4178	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4179	\| ptrref_operator type_qualifier_list
[ce8c12f]	4180	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4181	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4182	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4183	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4184	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4185	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4186	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4187	;
[51b73452]	4188
	4189	variable_abstract_array:
[4d51835]	4190	array_dimension
	4191	\| '(' variable_abstract_ptr ')' array_dimension
	4192	{ $$ = $2->addArray( $4 ); }
	4193	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4194	{ $$ = $2->addArray( $4 ); }
	4195	\| '(' variable_abstract_array ')' // redundant parenthesis
	4196	{ $$ = $2; }
	4197	;
[51b73452]	4198
	4199	variable_abstract_function:
[647e2ea]	4200	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4201	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4202	\| '(' variable_abstract_function ')' // redundant parenthesis
	4203	{ $$ = $2; }
	4204	;
[b87a5ed]	4205
[de62360d]	4206	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4207	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4208
[c0aa336]	4209	cfa_identifier_parameter_declarator_tuple: // CFA
	4210	cfa_identifier_parameter_declarator_no_tuple
	4211	\| cfa_abstract_tuple
	4212	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4213	{ $$ = $2->addQualifiers( $1 ); }
	4214	;
[b87a5ed]	4215
[c0aa336]	4216	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4217	cfa_identifier_parameter_ptr
	4218	\| cfa_identifier_parameter_array
[dd54139]	4219	\| type_qualifier_list cfa_identifier_parameter_array
	4220	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	4221	;
[b87a5ed]	4222
[c0aa336]	4223	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4224	// No SUE declaration in parameter list.
	4225	ptrref_operator type_specifier_nobody
[a5f9444]	4226	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4227	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4228	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4229	\| ptrref_operator cfa_abstract_function
[a5f9444]	4230	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4231	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4232	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4233	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4234	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4235	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4236	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4237	;
[b87a5ed]	4238
[c0aa336]	4239	cfa_identifier_parameter_array: // CFA
[de62360d]	4240	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4241	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4242	'[' ']' type_specifier_nobody
[a5f9444]	4243	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[dd54139]	4244	\| '[' ']' cfa_abstract_tuple
	4245	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4246	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4247	{ $$ = $2->addNewArray( $1 ); }
[dd54139]	4248	\| cfa_array_parameter_1st_dimension cfa_abstract_tuple
	4249	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4250	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4251	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[dd54139]	4252	\| '[' ']' multi_array_dimension cfa_abstract_tuple
	4253	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4254	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4255	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[dd54139]	4256	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_abstract_tuple
	4257	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4258	\| multi_array_dimension type_specifier_nobody
[4d51835]	4259	{ $$ = $2->addNewArray( $1 ); }
[dd54139]	4260	\| multi_array_dimension cfa_abstract_tuple
	4261	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4262
[c0aa336]	4263	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4264	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4265	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4266	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4267	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4268	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4269	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4270	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4271	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4272	{ $$ = $2->addNewArray( $1 ); }
	4273	;
[51b73452]	4274
[c0aa336]	4275	cfa_array_parameter_1st_dimension:
[917f67dd]	4276	'[' type_qualifier_list '*' ']' // remaining C99
	4277	{ $$ = DeclarationNode::newVarArray( $2 ); }
	4278	\| '[' type_qualifier_list assignment_expression ']'
	4279	{ $$ = DeclarationNode::newArray( $3, $2, false ); }
	4280	\| '[' declaration_qualifier_list assignment_expression ']'
[4d51835]	4281	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4282	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4283	// appear in this context.
[917f67dd]	4284	{ $$ = DeclarationNode::newArray( $3, $2, true ); }
	4285	\| '[' declaration_qualifier_list type_qualifier_list assignment_expression ']'
	4286	{ $$ = DeclarationNode::newArray( $4, $3->addQualifiers( $2 ), true ); }
[4d51835]	4287	;
[b87a5ed]	4288
[de62360d]	4289	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4290	// identifier to which the type applies, e.g.:
[c11e31c]	4291	//
[b87a5ed]	4292	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4293	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4294	//
	4295	// These rules need LR(3):
	4296	//
[c0aa336]	4297	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4298	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4299	//
	4300	// since a function return type can be syntactically identical to a tuple type:
	4301	//
[b87a5ed]	4302	// [int, int] t;
	4303	// [int, int] f( int );
[c11e31c]	4304	//
[2871210]	4305	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4306	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4307	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4308	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4309
[c0aa336]	4310	cfa_abstract_declarator_tuple: // CFA
	4311	cfa_abstract_tuple
	4312	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4313	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4314	\| cfa_abstract_declarator_no_tuple
[4d51835]	4315	;
[b87a5ed]	4316
[c0aa336]	4317	cfa_abstract_declarator_no_tuple: // CFA
	4318	cfa_abstract_ptr
	4319	\| cfa_abstract_array
[4d51835]	4320	;
[b87a5ed]	4321
[c0aa336]	4322	cfa_abstract_ptr: // CFA
[dd51906]	4323	ptrref_operator type_specifier
[a5f9444]	4324	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4325	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4326	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4327	\| ptrref_operator cfa_abstract_function
[a5f9444]	4328	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4329	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4330	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4331	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4332	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4333	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4334	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4335	;
[b87a5ed]	4336
[c0aa336]	4337	cfa_abstract_array: // CFA
[de62360d]	4338	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4339	// empty (void) function return type.
[2871210]	4340	'[' ']' type_specifier
[2298f728]	4341	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4342	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4343	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4344	\| multi_array_dimension type_specifier
	4345	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4346	\| '[' ']' cfa_abstract_ptr
[2298f728]	4347	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4348	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4349	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4350	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4351	{ $$ = $2->addNewArray( $1 ); }
	4352	;
[b87a5ed]	4353
[c0aa336]	4354	cfa_abstract_tuple: // CFA
[917f67dd]	4355	'[' cfa_abstract_parameter_list ']'
	4356	{ $$ = DeclarationNode::newTuple( $2 ); }
	4357	\| '[' type_specifier_nobody ELLIPSIS ']'
[13e8427]	4358	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[917f67dd]	4359	\| '[' type_specifier_nobody ELLIPSIS constant_expression ']'
[13e8427]	4360	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4361	;
[b87a5ed]	4362
[c0aa336]	4363	cfa_abstract_function: // CFA
[647e2ea]	4364	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4365	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4366	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4367	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4368	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4369	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4370	;
[b87a5ed]	4371
[de62360d]	4372	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4373	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4374	//
[de62360d]	4375	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4376	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4377	//
	4378	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4379	// prototype-format parameter type declarators) is an obsolescent feature."
	4380	//
[de62360d]	4381	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4382	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4383
[e1d66c84]	4384	// ********************** MISCELLANEOUS ******************************
[51b73452]	4385
[b87a5ed]	4386	comma_opt: // redundant comma
[4d51835]	4387	// empty
	4388	\| ','
	4389	;
[51b73452]	4390
[5a51798]	4391	default_initializer_opt:
[4d51835]	4392	// empty
[58dd019]	4393	{ $$ = nullptr; }
[4d51835]	4394	\| '=' assignment_expression
	4395	{ $$ = $2; }
	4396	;
[51b73452]	4397
	4398	%%
[a1c9ddd]	4399
[c11e31c]	4400	// ----end of grammar----
[51b73452]	4401
[c11e31c]	4402	// Local Variables: //
[b87a5ed]	4403	// mode: c++ //
[de62360d]	4404	// tab-width: 4 //
[7e13b11]	4405	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4406	// End: //

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