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Last change on this file since 8e4f34e was ecf3812, checked in by Andrew Beach <ajbeach@…>, 11 months ago
CastExpr reorganization and clean-up in Lvalue. I kept these from a fix that is not working.
Property mode set to `100644`
File size: 180.1 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
[dd54139]	12	// Last Modified On : Fri Nov 15 15:01:33 2024
	13	// Update Count : 6915
[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 ) {
[67467a3]	201	if ( nullptr == fieldList ) {
	202	if ( !( typeSpec->type && typeSpec->type->kind == TypeData::Aggregate ) ) {
[f7e4db27]	203	stringstream ss;
[d8454b9]	204	// printf( "fieldDecl1 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	205	SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() );
	206	return nullptr;
	207	} // if
[d8454b9]	208	// printf( "fieldDecl2 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	209	fieldList = DeclarationNode::newName( nullptr );
	210	} // if
[d8454b9]	211
	212	// printf( "fieldDecl3 typeSpec %p\n", typeSpec ); typeSpec->print( std::cout, 0 );
[4eb3a7c5]	213	DeclarationNode * temp = distAttr( typeSpec, fieldList ); // mark all fields in list
[d8454b9]	214	// printf( "fieldDecl4 temp %p\n", temp ); temp->print( std::cout, 0 );
	215	return temp;
[f7e4db27]	216	} // fieldDecl
	217
[bb7422a]	218	#define NEW_ZERO new ExpressionNode( build_constantInteger( yylloc, *new string( "0" ) ) )
	219	#define NEW_ONE new ExpressionNode( build_constantInteger( yylloc, *new string( "1" ) ) )
[52be5948]	220	#define UPDOWN( compop, left, right ) (compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? left : right)
[253d0b4]	221	#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]	222	#define MISSING_LOW "illegal syntax, missing low value for ascanding range so index is uninitialized."
	223	#define MISSING_HIGH "illegal syntax, missing high value for descending range so index is uninitialized."
[253d0b4]	224
[089b39e1]	225	static ForCtrl * makeForCtrl( const CodeLocation & location, DeclarationNode * init, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[1cdc052]	226	// Wrap both comp/inc if they are non-null.
[bb7422a]	227	if ( comp ) comp = new ExpressionNode( build_binary_val( location,
[1cdc052]	228	compop,
[bb7422a]	229	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	230	comp ) );
[bb7422a]	231	if ( inc ) inc = new ExpressionNode( build_binary_val( location,
[1cdc052]	232	// choose += or -= for upto/downto
	233	compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? OperKinds::PlusAssn : OperKinds::MinusAssn,
[bb7422a]	234	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	235	inc ) );
	236	// The StatementNode call frees init->name, it must happen later.
	237	return new ForCtrl( new StatementNode( init ), comp, inc );
	238	}
	239
[089b39e1]	240	ForCtrl * forCtrl( const CodeLocation & location, DeclarationNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[d78c238]	241	if ( index->initializer ) {
[253d0b4]	242	SemanticError( yylloc, "illegal syntax, direct initialization disallowed. Use instead: type var; initialization ~ comparison ~ increment." );
[d78c238]	243	} // if
	244	if ( index->next ) {
[253d0b4]	245	SemanticError( yylloc, "illegal syntax, multiple loop indexes disallowed in for-loop declaration." );
[d78c238]	246	} // if
[1cdc052]	247	DeclarationNode * initDecl = index->addInitializer( new InitializerNode( start ) );
[bb7422a]	248	return makeForCtrl( location, initDecl, compop, comp, inc );
[d78c238]	249	} // forCtrl
	250
[089b39e1]	251	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, string * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	252	ast::ConstantExpr * constant = dynamic_cast<ast::ConstantExpr *>(type->expr.get());
	253	if ( constant && (constant->rep == "0" \|\| constant->rep == "1") ) {
[7a780ad]	254	type = new ExpressionNode( new ast::CastExpr( location, maybeMoveBuild(type), new ast::BasicType( ast::BasicKind::SignedInt ) ) );
[0982a05]	255	} // if
[1cdc052]	256	DeclarationNode * initDecl = distAttr(
	257	DeclarationNode::newTypeof( type, true ),
	258	DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) )
	259	);
[bb7422a]	260	return makeForCtrl( location, initDecl, compop, comp, inc );
[f271bdd]	261	} // forCtrl
	262
[253d0b4]	263	#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."
	264
[089b39e1]	265	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[bb7422a]	266	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index->expr.get()) ) {
	267	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
[f1aeede]	268	} else {
[253d0b4]	269	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[f1aeede]	270	} // if
[f271bdd]	271	} // forCtrl
	272
[6d2b3dc]	273	ForCtrl * enumRangeCtrl( ExpressionNode * index_expr, OperKinds compop, ExpressionNode * range_over_expr, DeclarationNode * type ) {
	274	assert( compop == OperKinds::LEThan \|\| compop == OperKinds::GEThan );
[525f7ad]	275	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index_expr->expr.get()) ) {
[6d2b3dc]	276	DeclarationNode * indexDecl =
	277	DeclarationNode::newName( new std::string(identifier->name) )->addType( type );
[d3aa55e9]	278	return new ForCtrl( new StatementNode( indexDecl ), range_over_expr, compop );
[525f7ad]	279	} else {
[253d0b4]	280	SemanticError( yylloc, MISSING_LOOP_INDEX ); return nullptr;
[525f7ad]	281	} // if
	282	} // enumRangeCtrl
	283
[996c8ed]	284	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[253d0b4]	285	SemanticError( yylloc, "illegal syntax, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
[b1f2007d]	286	"Possible cause is misspelled type name or missing generic parameter.",
	287	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	288	} // IdentifierBeforeIdentifier
	289
	290	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[253d0b4]	291	SemanticError( yylloc, "illegal syntax, identifier \"%s\" cannot appear before a %s.\n"
[b1f2007d]	292	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	293	identifier.c_str(), kind );
[996c8ed]	294	} // IdentifierBeforeType
	295
[24711a3]	296	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	297
[201aeb9]	298	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	299	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	300	if ( N ) { \
	301	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	302	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	303	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	304	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	305	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	306	} else { \
	307	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	308	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	309	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	310	}
[51b73452]	311	%}
	312
[15697ff]	313	%define parse.error verbose
	314
[201aeb9]	315	// Types declaration for productions
[7cf8006]	316
[0982a05]	317	%union {
[6cef439]	318	// A raw token can be used.
[a67b60e]	319	Token tok;
[6cef439]	320
	321	// The general node types hold some generic node or list of nodes.
[a67b60e]	322	DeclarationNode * decl;
[6cef439]	323	InitializerNode * init;
	324	ExpressionNode * expr;
[32d6fdc]	325	StatementNode * stmt;
[6611177]	326	ClauseNode * clause;
[6cef439]	327	TypeData * type;
	328
	329	// Special "nodes" containing compound information.
[569b118]	330	CondCtrl * ifctrl;
	331	ForCtrl * forctrl;
[32d6fdc]	332	LabelNode * labels;
[6cef439]	333
	334	// Various flags and single values that become fields later.
	335	ast::AggregateDecl::Aggregate aggKey;
	336	ast::TypeDecl::Kind tclass;
[32d6fdc]	337	OperKinds oper;
	338	bool is_volatile;
	339	EnumHiding enum_hiding;
	340	ast::ExceptionKind except_kind;
[6cef439]	341	// String passes ownership with it.
	342	std::string * str;
	343
	344	// Narrower node types are used to avoid constant unwrapping.
	345	ast::WaitForStmt * wfs;
	346	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	347	ast::GenericExpr * genexpr;
[a67b60e]	348	}
	349
[bb7422a]	350	// ********************** TERMINAL TOKENS ******************************
[51b73452]	351
[c11e31c]	352	// keywords
[51b73452]	353	%token TYPEDEF
[a7c90d4]	354	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	355	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	356	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	357	%token NORETURN // C11
[51b73452]	358	%token CONST VOLATILE
[b87a5ed]	359	%token RESTRICT // C99
[a7c90d4]	360	%token ATOMIC // C11
[1f652a7]	361	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	362	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	363	%token BOOL COMPLEX IMAGINARY // C99
[c5f69fd]	364	%token INT128 UINT128 FLOAT80 uuFLOAT128 // GCC
	365	%token FLOAT16 FLOAT32 FLOAT32X FLOAT64 FLOAT64X FLOAT128 FLOAT128X // GCC
	366	%token FLOAT32X4 FLOAT64X2 SVFLOAT32 SVFLOAT64 SVBOOL // GCC (ARM)
[15f769c]	367	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	368	%token ZERO_T ONE_T // CFA
[a8ced63]	369	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE COUNTOF // GCC
[1f652a7]	370	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	371	%token ENUM STRUCT UNION
[c27fb59]	372	%token EXCEPTION // CFA
[553772b]	373	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	374	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	375	// %token RESUME // CFA
[1f652a7]	376	%token LABEL // GCC
[25744d2]	377	%token SUSPEND // CFA
[b87a5ed]	378	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	379	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	380	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	381	%token CORUN COFOR
[4744074]	382	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	383	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	384	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	385
[c11e31c]	386	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	387	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	388	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	389	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[1a8b17a]	390	%token<tok> DIRECTIVE C23_ATTRIBUTE
[1b29996]	391	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	392	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	393	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	394	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	395
[c11e31c]	396	// multi-character operators
[b87a5ed]	397	%token ARROW // ->
	398	%token ICR DECR // ++ --
	399	%token LS RS // << >>
	400	%token LE GE EQ NE // <= >= == !=
	401	%token ANDAND OROR // && \|\|
[647e2ea]	402	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	403
[e5f2a67]	404	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	405	%token PLUSassign MINUSassign // += -=
	406	%token LSassign RSassign // <<= >>=
	407	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	408
[01afd8d]	409	%token ErangeUp ErangeUpEq ErangeDown ErangeDownEq // +~ +~=/~= -~ -~=
[e7aed49]	410	%token ATassign // @=
[097e2b0]	411
[e16eb460]	412	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	413	%type<tok> quasi_keyword
[32d6fdc]	414	%type<expr> string_literal
[ab57786]	415	%type<str> string_literal_list
[51b73452]	416
[71a422a]	417	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	418
[c11e31c]	419	// expressions
[32d6fdc]	420	%type<expr> constant
[71a422a]	421	%type<expr> tuple tuple_expression_list
[32d6fdc]	422	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	423	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	424	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	425	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	426	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	427	%type<expr> logical_AND_expression logical_OR_expression
	428	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	429	%type<expr> comma_expression comma_expression_opt
	430	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[569b118]	431	%type<ifctrl> conditional_declaration
	432	%type<forctrl> for_control_expression for_control_expression_list
[32d6fdc]	433	%type<oper> upupeq updown updowneq downupdowneq
	434	%type<expr> subrange
[c0aa336]	435	%type<decl> asm_name_opt
[71a422a]	436	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	437	%type<labels> label_list
	438	%type<expr> asm_clobbers_list_opt
	439	%type<is_volatile> asm_volatile_opt
	440	%type<expr> handler_predicate_opt
[67d4e37]	441	%type<genexpr> generic_association generic_assoc_list
[51b73452]	442
[c11e31c]	443	// statements
[71a422a]	444	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	445	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	446	%type<stmt> selection_statement
[71a422a]	447	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	448	%type<expr> case_value
[71a422a]	449	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	450	%type<stmt> iteration_statement jump_statement
[71a422a]	451	%type<stmt> expression_statement asm_statement
[32d6fdc]	452	%type<stmt> with_statement
	453	%type<expr> with_clause_opt
[11ab0b4a]	454	%type<stmt> corun_statement cofor_statement
[32d6fdc]	455	%type<stmt> exception_statement
[6611177]	456	%type<clause> handler_clause finally_clause
[32d6fdc]	457	%type<except_kind> handler_key
	458	%type<stmt> mutex_statement
	459	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	460	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	461	%type<wfs> wor_waitfor_clause
[6e1e2d0]	462	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	463
[c11e31c]	464	// declarations
[c0aa336]	465	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	466	%type<decl> abstract_parameter_declarator_opt abstract_parameter_declarator abstract_parameter_ptr abstract_parameter_array abstract_parameter_function array_parameter_dimension array_parameter_1st_dimension
[c0aa336]	467	%type<decl> abstract_parameter_declaration
[51b73452]	468
[e307e12]	469	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	470	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	471
[9997fee]	472	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	473
[32d6fdc]	474	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	475
[84d58c5]	476	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	477	%type<type> basic_type_name_type
	478	%type<type> vtable vtable_opt default_opt
[51b73452]	479
[4040425]	480	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	481
	482	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	483	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	484
[d0ffed1]	485	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	486
[a8ced63]	487	%type<decl> enumerator_list enum_type enum_type_nobody enum_key enumerator_type
[32d6fdc]	488	%type<init> enumerator_value_opt
[51b73452]	489
[3d56d15b]	490	%type<decl> external_definition external_definition_list external_definition_list_opt
	491
	492	%type<decl> exception_declaration
[51b73452]	493
[12f1156]	494	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	495	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	496
[4d51835]	497	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	498
[d3bc0ad]	499	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	500	%type<decl> identifier_list
[51b73452]	501
[c0aa336]	502	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	503	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	504	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	505
[c0aa336]	506	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	507
[679e644]	508	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	509	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	510
[c0aa336]	511	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	512	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	513
[647e2ea]	514	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	515
[c0aa336]	516	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	517
[b9be000b]	518	%type<decl> c_declaration static_assert
[c0aa336]	519	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	520	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	521
[647e2ea]	522	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	523
[2871210]	524	%type<decl> paren_identifier paren_type
[51b73452]	525
[0da3e2c]	526	%type<decl> storage_class storage_class_list
[51b73452]	527
[d0ffed1]	528	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	529
[5a51798]	530	%type<tclass> type_class new_type_class
[51b73452]	531	%type<decl> type_declarator type_declarator_name type_declaring_list
	532
[6cef439]	533	%type<decl> type_declaration_specifier type_type_specifier
	534	%type<type> type_name typegen_name
[f9c3100]	535	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	536
[1f771fc]	537	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	538	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	539
	540	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	541
[84d58c5]	542	%type<decl> type type_no_function
	543	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	544
[647e2ea]	545	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	546
[6cef439]	547	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	548	%type<type> type_qualifier_name
[f9c3100]	549	%type<decl> type_specifier type_specifier_nobody
[51b73452]	550
[c0aa336]	551	%type<decl> variable_declarator variable_ptr variable_array variable_function
	552	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	553
[f9c3100]	554	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	555
[c11e31c]	556	// initializers
[32d6fdc]	557	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	558
[c11e31c]	559	// designators
[32d6fdc]	560	%type<expr> designator designator_list designation
[51b73452]	561
	562
[65d6de4]	563	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	564	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	565	// if ( C ) S1 else S2
	566	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	567	// Similar issues exit with the waitfor statement.
[51b73452]	568
[9fd9d015]	569	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	570	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	571	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	572	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	573	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	574	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	575	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	576	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	577	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	578	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	579	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	580	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	583
[51b73452]	584
[65d6de4]	585	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	586	// forall( otype T ) struct Foo { T v; };
	587	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	588	// Foo ( *fp )( int );
	589	// `---' matches start of TYPEGENname '('
[fc20514]	590	// must be:
[a16a7ec]	591	// Foo( int ) ( *fp )( int );
[fc20514]	592	// The same problem occurs here:
	593	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	594	// must be:
	595	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	596
	597	// Order of these lines matters (low-to-high precedence).
	598	%precedence TYPEGENname
[284da8c]	599	%precedence '}'
[65d6de4]	600	%precedence '('
	601
[c786e1d]	602	// %precedence RESUME
	603	// %precedence '{'
	604	// %precedence ')'
	605
[f38e7d7]	606	%locations // support location tracking for error messages
[930f69e]	607
[b87a5ed]	608	%start translation_unit // parse-tree root
[51b73452]	609
	610	%%
[e1d66c84]	611	// ********************** Namespace Management ******************************
[c11e31c]	612
[3d26610]	613	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	614	// which are lexically identical.
[c11e31c]	615	//
[3d26610]	616	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	617	// foo f; // to allow it to appear in this context
[c11e31c]	618	//
[3d26610]	619	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	620	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	621	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	622	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	623	// must be distinguished by the lexical scanner.
[c11e31c]	624	//
[3d26610]	625	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	626	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	627	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	628	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	629	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	630	// This requires distinguishing between type names that are local to the current declaration scope and those that
	631	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	632	//
[3d26610]	633	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	634	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	635	// around the list separator.
	636	//
[71a422a]	637	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	638	// push pop push pop
[51b73452]	639
	640	push:
[ab57786]	641	{ typedefTable.enterScope(); }
[4d51835]	642	;
[51b73452]	643
	644	pop:
[ab57786]	645	{ typedefTable.leaveScope(); }
[4d51835]	646	;
[51b73452]	647
[e1d66c84]	648	// ********************** CONSTANTS ******************************
[51b73452]	649
	650	constant:
[de62360d]	651	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	652	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	653	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	654	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	655	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	656	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	657	;
[51b73452]	658
[5b2edbc]	659	quasi_keyword: // CFA
	660	TIMEOUT
[9fd9d015]	661	\| WAND
[5b2edbc]	662	\| WOR
[9fb1367]	663	\| CATCH
	664	\| RECOVER
	665	\| CATCHRESUME
	666	\| FIXUP
	667	\| FINALLY
[5b2edbc]	668	;
	669
[033ff37]	670	identifier:
[4d51835]	671	IDENTIFIER
[5b2edbc]	672	\| quasi_keyword
[e16eb460]	673	;
	674
	675	identifier_at:
	676	identifier
[679e644]	677	\| '@' // CFA
	678	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	679	;
[51b73452]	680
[12f1156]	681	identifier_or_type_name:
	682	identifier
	683	\| TYPEDEFname
	684	\| TYPEGENname
	685	;
	686
[ab57786]	687	string_literal:
[32d6fdc]	688	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	689	;
	690
[b87a5ed]	691	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	692	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	693	\| string_literal_list STRINGliteral
	694	{
[15697ff]	695	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	696	delete $2; // allocated by lexer
[ab57786]	697	$$ = $1; // conversion from tok to str
[7bf7fb9]	698	}
[4d51835]	699	;
[51b73452]	700
[e1d66c84]	701	// ********************** EXPRESSIONS ******************************
[51b73452]	702
	703	primary_expression:
[4d51835]	704	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	705	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	706	\| quasi_keyword
[bb7422a]	707	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	708	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	709	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	710	\| tuple
[4d51835]	711	\| '(' comma_expression ')'
	712	{ $$ = $2; }
	713	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	714	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	715	\| type_name '.' identifier // CFA, nested type
[6cef439]	716	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	717	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	718	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	719	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	720	{
	721	// add the missing control expression to the GenericExpr and return it
[702e826]	722	$5->control = maybeMoveBuild( $3 );
[d807ca28]	723	$$ = new ExpressionNode( $5 );
	724	}
[c786e1d]	725	// \| RESUME '(' comma_expression ')'
	726	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	727	// \| RESUME '(' comma_expression ')' compound_statement
	728	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	729	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	730	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	731	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	732	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	733	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	734	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	735	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	736	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	737	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	738	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	739	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	740	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	741	;
	742
	743	generic_assoc_list: // C11
[d807ca28]	744	generic_association
[24c3b67]	745	\| generic_assoc_list ',' generic_association
[d807ca28]	746	{
	747	// steal the association node from the singleton and delete the wrapper
[bb7422a]	748	assert( 1 == $3->associations.size() );
	749	$1->associations.push_back( $3->associations.front() );
[d807ca28]	750	delete $3;
	751	$$ = $1;
	752	}
[24c3b67]	753	;
	754
	755	generic_association: // C11
	756	type_no_function ':' assignment_expression
[d807ca28]	757	{
	758	// create a GenericExpr wrapper with one association pair
[bb7422a]	759	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	760	}
[24c3b67]	761	\| DEFAULT ':' assignment_expression
[bb7422a]	762	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	763	;
[51b73452]	764
	765	postfix_expression:
[4d51835]	766	primary_expression
[1d71208]	767	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	768	// Historic, transitional: Disallow commas in subscripts.
	769	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	770	// Current: Commas in subscripts make tuples.
[b93c544]	771	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	772	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	773	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	774	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	775	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	776	// equivalent to the old x[i,j].
[bb7422a]	777	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	778	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	779	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	780	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	781	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	782	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	783	{
	784	Token fn;
	785	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	786	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	787	}
[cbbd8fd7]	788	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	789	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	790	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
[45ee172]	791	{ $$ = new ExpressionNode( build_va_arg( yylloc, $3, ( $6 ? $6->addType( $5 ) : $5 ) ) ); }
[948fdef]	792	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	793	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	794	\| constant '`' identifier // CFA, postfix call
[bb7422a]	795	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	796	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	797	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	798
	799	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	800	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	801	// them. For example:
	802	//
	803	// struct S;
	804	// forall(T) struct T;
	805	// union U;
	806	// enum E { S, T, E };
	807	// struct Z { int S, T, Z, E, U; };
	808	// void fred () {
	809	// Z z;
	810	// z.S; // lexer returns S is TYPEDEFname
	811	// z.T; // lexer returns T is TYPEGENname
	812	// z.Z; // lexer returns Z is TYPEDEFname
	813	// z.U; // lexer returns U is TYPEDEFname
	814	// z.E; // lexer returns E is TYPEDEFname
	815	// }
[12f1156]	816	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	817	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	818
[df22130]	819	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	820	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	821	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	822	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	823	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	824	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	825	\| postfix_expression '.' aggregate_control
[bb7422a]	826	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	827	\| postfix_expression ARROW identifier
[bb7422a]	828	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	829	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	830	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	831	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	832	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	833	\| postfix_expression ICR
[bb7422a]	834	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	835	\| postfix_expression DECR
[bb7422a]	836	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	837	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	838	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	839	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	840	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	841	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	842	{
[9706554]	843	Token fn;
[ecb27a7]	844	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	845	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	846	}
[4d51835]	847	;
[51b73452]	848
[679e644]	849	field_name_list: // CFA, tuple field selector
[4d51835]	850	field
[b93c544]	851	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	852	;
[b87a5ed]	853
	854	field: // CFA, tuple field selector
[faddbd8]	855	field_name
[930f69e]	856	\| FLOATING_DECIMALconstant field
[bb7422a]	857	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	858	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	859	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	860	\| field_name '.' field
[bb7422a]	861	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	862	\| field_name '.' '[' field_name_list ']'
[bb7422a]	863	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	864	\| field_name ARROW field
[bb7422a]	865	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	866	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	867	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	868	;
[51b73452]	869
[faddbd8]	870	field_name:
[df22130]	871	INTEGERconstant fraction_constants_opt
[bb7422a]	872	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	873	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	874	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	875	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	876	{
[bb7422a]	877	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	878	}
[1b29996]	879	;
	880
[df22130]	881	fraction_constants_opt:
[1b29996]	882	// empty
[8780e30]	883	{ $$ = nullptr; }
[df22130]	884	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	885	{
[bb7422a]	886	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	887	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	888	}
[faddbd8]	889	;
	890
[51b73452]	891	unary_expression:
[4d51835]	892	postfix_expression
[c6b1105]	893	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	894	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	895	\| constant
[ab57786]	896	\| string_literal
[32d6fdc]	897	{ $$ = $1; }
[4d51835]	898	\| EXTENSION cast_expression // GCC
[e04ef3a]	899	{ $$ = $2->set_extension( true ); }
[c6b1105]	900	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	901	// { * X; } // dereference X
	902	// { * int X; } // CFA declaration of pointer to int
[51e076e]	903	\| ptrref_operator cast_expression // CFA
[9706554]	904	{
	905	switch ( $1 ) {
[bb7422a]	906	case OperKinds::AddressOf:
	907	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	908	break;
[bb7422a]	909	case OperKinds::PointTo:
	910	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	911	break;
[bb7422a]	912	case OperKinds::And:
	913	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	914	break;
[bb7422a]	915	default:
[9706554]	916	assert( false );
	917	}
	918	}
[4d51835]	919	\| unary_operator cast_expression
[bb7422a]	920	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	921	\| ICR unary_expression
[bb7422a]	922	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	923	\| DECR unary_expression
[bb7422a]	924	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	925	\| SIZEOF unary_expression
[b6f2e7ab]	926	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[84d58c5]	927	\| SIZEOF '(' type_no_function ')'
[bb7422a]	928	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	929	\| ALIGNOF unary_expression // GCC, variable alignment
[b6f2e7ab]	930	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, new ast::TypeofType( maybeMoveBuild( $2 ) ) ) ); }
[a2e0687]	931	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	932	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	933
	934	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	935	// look ahead, so the cfa_abstract_function is factored out.
	936	\| SIZEOF '(' cfa_abstract_function ')'
	937	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	938	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	939	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	940
[033ff37]	941	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	942	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	943	\| TYPEID '(' type ')'
[1f652a7]	944	{
	945	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	946	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	947	}
[0c327ce]	948	\| COUNTOF unary_expression
[4941716]	949	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a8ced63]	950	\| COUNTOF '(' type_no_function ')'
	951	{ $$ = new ExpressionNode( new ast::CountExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[4d51835]	952	;
[51b73452]	953
[dd51906]	954	ptrref_operator:
[d9e2280]	955	'*' { $$ = OperKinds::PointTo; }
	956	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	957	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	958	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	959	;
	960
[51b73452]	961	unary_operator:
[d9e2280]	962	'+' { $$ = OperKinds::UnPlus; }
	963	\| '-' { $$ = OperKinds::UnMinus; }
	964	\| '!' { $$ = OperKinds::Neg; }
	965	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	966	;
[51b73452]	967
	968	cast_expression:
[4d51835]	969	unary_expression
[84d58c5]	970	\| '(' type_no_function ')' cast_expression
[bb7422a]	971	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	972	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	973	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	974	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	975	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	976	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	977	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	978	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	979	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	980	\| '(' RETURN type_no_function ')' cast_expression // CFA
[ecf3812]	981	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::ReturnCast ) ); }
[1528a2c]	982	\| '(' COERCE type_no_function ')' cast_expression // CFA
	983	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	984	\| '(' qualifier_cast_list ')' cast_expression // CFA
	985	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	986	// \| '(' type_no_function ')' tuple
[bb7422a]	987	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	988	;
[51b73452]	989
[1528a2c]	990	qualifier_cast_list:
	991	cast_modifier type_qualifier_name
	992	\| cast_modifier MUTEX
	993	\| qualifier_cast_list cast_modifier type_qualifier_name
	994	\| qualifier_cast_list cast_modifier MUTEX
	995	;
	996
	997	cast_modifier:
	998	'-'
	999	\| '+'
	1000	;
	1001
[994d080]	1002	exponential_expression:
[4d51835]	1003	cast_expression
[994d080]	1004	\| exponential_expression '\\' cast_expression
[bb7422a]	1005	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1006	;
	1007
	1008	multiplicative_expression:
	1009	exponential_expression
	1010	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1011	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1012	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1013	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1014	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1015	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1016	;
[51b73452]	1017
	1018	additive_expression:
[4d51835]	1019	multiplicative_expression
	1020	\| additive_expression '+' multiplicative_expression
[bb7422a]	1021	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1022	\| additive_expression '-' multiplicative_expression
[bb7422a]	1023	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1024	;
[51b73452]	1025
	1026	shift_expression:
[4d51835]	1027	additive_expression
	1028	\| shift_expression LS additive_expression
[bb7422a]	1029	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1030	\| shift_expression RS additive_expression
[bb7422a]	1031	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1032	;
[51b73452]	1033
	1034	relational_expression:
[4d51835]	1035	shift_expression
	1036	\| relational_expression '<' shift_expression
[bb7422a]	1037	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1038	\| relational_expression '>' shift_expression
[bb7422a]	1039	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1040	\| relational_expression LE shift_expression
[bb7422a]	1041	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1042	\| relational_expression GE shift_expression
[bb7422a]	1043	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1044	;
[51b73452]	1045
	1046	equality_expression:
[4d51835]	1047	relational_expression
	1048	\| equality_expression EQ relational_expression
[bb7422a]	1049	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1050	\| equality_expression NE relational_expression
[bb7422a]	1051	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1052	;
[51b73452]	1053
	1054	AND_expression:
[4d51835]	1055	equality_expression
	1056	\| AND_expression '&' equality_expression
[bb7422a]	1057	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1058	;
[51b73452]	1059
	1060	exclusive_OR_expression:
[4d51835]	1061	AND_expression
	1062	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1063	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1064	;
[51b73452]	1065
	1066	inclusive_OR_expression:
[4d51835]	1067	exclusive_OR_expression
	1068	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1069	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1070	;
[51b73452]	1071
	1072	logical_AND_expression:
[4d51835]	1073	inclusive_OR_expression
	1074	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1075	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1076	;
[51b73452]	1077
	1078	logical_OR_expression:
[4d51835]	1079	logical_AND_expression
	1080	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1081	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1082	;
[51b73452]	1083
	1084	conditional_expression:
[4d51835]	1085	logical_OR_expression
	1086	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1087	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1088	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1089	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1090	;
[51b73452]	1091
	1092	constant_expression:
[4d51835]	1093	conditional_expression
	1094	;
[51b73452]	1095
[c1b0b8f]	1096	argument_expression_list_opt:
	1097	// empty
	1098	{ $$ = nullptr; }
	1099	\| argument_expression_list
	1100	;
	1101
	1102	argument_expression_list:
	1103	argument_expression
	1104	// \| argument_expression_list_opt ',' argument_expression // CFA, allow empty argument
	1105	\| argument_expression_list ',' argument_expression // no empty argument
	1106	{ $$ = $1->set_last( $3 ); }
	1107	;
	1108
	1109	argument_expression:
	1110	'?' // CFA, default parameter
[daa4cc1]	1111	// { SemanticError( yylloc, "Argument to default parameter is currently unimplemented." ); $$ = nullptr; }
	1112	{ $$ = new ExpressionNode( build_constantInteger( yylloc, *new string( "2" ) ) ); }
[c1b0b8f]	1113	\| '?' identifier '=' assignment_expression // CFA, keyword argument
[daa4cc1]	1114	// { SemanticError( yylloc, "keyword argument is currently unimplemented." ); $$ = nullptr; }
	1115	{ $$ = $4; }
[c1b0b8f]	1116	\| assignment_expression
	1117	;
	1118
[51b73452]	1119	assignment_expression:
[4d51835]	1120	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1121	conditional_expression
	1122	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1123	{
[25744d2]	1124	// if ( $2 == OperKinds::AtAssn ) {
	1125	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1126	// } else {
[bb7422a]	1127	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1128	// } // if
[9867cdb]	1129	}
[7fdb94e1]	1130	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1131	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1132	;
[51b73452]	1133
	1134	assignment_expression_opt:
[4d51835]	1135	// empty
[d1625f8]	1136	{ $$ = nullptr; }
[4d51835]	1137	\| assignment_expression
	1138	;
[b87a5ed]	1139
[9706554]	1140	assignment_operator:
[f9c3100]	1141	simple_assignment_operator
	1142	\| compound_assignment_operator
	1143	;
	1144
	1145	simple_assignment_operator:
[d9e2280]	1146	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1147	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1148	;
	1149
	1150	compound_assignment_operator:
	1151	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1152	\| MULTassign { $$ = OperKinds::MulAssn; }
	1153	\| DIVassign { $$ = OperKinds::DivAssn; }
	1154	\| MODassign { $$ = OperKinds::ModAssn; }
	1155	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1156	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1157	\| LSassign { $$ = OperKinds::LSAssn; }
	1158	\| RSassign { $$ = OperKinds::RSAssn; }
	1159	\| ANDassign { $$ = OperKinds::AndAssn; }
	1160	\| ERassign { $$ = OperKinds::ERAssn; }
	1161	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1162	;
[9706554]	1163
[b87a5ed]	1164	tuple: // CFA, tuple
[de62360d]	1165	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1166	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1a8b17a]	1167	'[' ',' ']'
[dd54139]	1168	// { $$ = new ExpressionNode( build_tuple( yylloc, nullptr ) ); }
	1169	{ SemanticError( yylloc, "Empty tuple is meaningless." ); $$ = nullptr; }
[1a8b17a]	1170	\| '[' assignment_expression ',' ']'
	1171	{ $$ = new ExpressionNode( build_tuple( yylloc, $2 ) ); }
	1172	\| '[' '@' comma_opt ']'
	1173	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1174	\| '[' assignment_expression ',' tuple_expression_list comma_opt ']'
[917f67dd]	1175	{ $$ = new ExpressionNode( build_tuple( yylloc, $2->set_last( $4 ) ) ); }
[1a8b17a]	1176	\| '[' '@' ',' tuple_expression_list comma_opt ']'
	1177	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1178	;
[51b73452]	1179
	1180	tuple_expression_list:
[0a6d8204]	1181	assignment_expression
	1182	\| '@' // CFA
	1183	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1184	\| tuple_expression_list ',' assignment_expression
[b93c544]	1185	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1186	\| tuple_expression_list ',' '@'
	1187	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1188	;
[51b73452]	1189
	1190	comma_expression:
[4d51835]	1191	assignment_expression
[9706554]	1192	\| comma_expression ',' assignment_expression
[bb7422a]	1193	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1194	;
[51b73452]	1195
	1196	comma_expression_opt:
[4d51835]	1197	// empty
[58dd019]	1198	{ $$ = nullptr; }
[4d51835]	1199	\| comma_expression
	1200	;
[51b73452]	1201
[e1d66c84]	1202	// ************************ STATEMENTS *****************************
[51b73452]	1203
	1204	statement:
[4d51835]	1205	labeled_statement
	1206	\| compound_statement
[c0a33d2]	1207	\| expression_statement
[4d51835]	1208	\| selection_statement
	1209	\| iteration_statement
	1210	\| jump_statement
[8b47e50]	1211	\| with_statement
[b6b3c42]	1212	\| mutex_statement
[5b2edbc]	1213	\| waitfor_statement
[9fd9d015]	1214	\| waituntil_statement
[11ab0b4a]	1215	\| corun_statement
	1216	\| cofor_statement
[4d51835]	1217	\| exception_statement
[2a8427c6]	1218	\| enable_disable_statement
[fae90d5f]	1219	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1220	\| asm_statement
[61fc4f6]	1221	\| DIRECTIVE
[bb7422a]	1222	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[dd54139]	1223	// \| attribute ';'
	1224	// { $$ = new StatementNode( $1 ); }
[b9be000b]	1225	;
[51b73452]	1226
	1227	labeled_statement:
[033ff37]	1228	// labels cannot be identifiers 0 or 1
[44a81853]	1229	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1230	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1231	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1232	{
[b1f2007d]	1233	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1234	"where a declaration, case, or default is not a statement.\n"
	1235	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1236	$$ = nullptr;
	1237	}
[4d51835]	1238	;
[51b73452]	1239
	1240	compound_statement:
[4d51835]	1241	'{' '}'
[bb7422a]	1242	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1243	\| '{' push
[5e25953]	1244	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1245	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1246	pop '}'
[bb7422a]	1247	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1248	;
[b87a5ed]	1249
[9bd6105]	1250	statement_decl_list: // C99
	1251	statement_decl
[35718a9]	1252	\| statement_decl_list statement_decl
[6d01d89]	1253	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1254	;
[51b73452]	1255
[9bd6105]	1256	statement_decl:
[4d51835]	1257	declaration // CFA, new & old style declarations
[e82aa9df]	1258	{ $$ = new StatementNode( $1 ); }
[4d51835]	1259	\| EXTENSION declaration // GCC
[6d01d89]	1260	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1261	\| function_definition
[e82aa9df]	1262	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1263	\| EXTENSION function_definition // GCC
[6d01d89]	1264	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1265	\| statement
[4d51835]	1266	;
[51b73452]	1267
[9bd6105]	1268	statement_list_nodecl:
[4d51835]	1269	statement
[9bd6105]	1270	\| statement_list_nodecl statement
[6d01d89]	1271	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1272	\| statement_list_nodecl error // invalid syntax rule
[253d0b4]	1273	{ SemanticError( yylloc, "illegal syntax, declarations only allowed at the start of the switch body,"
[7e13b11]	1274	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1275	;
[51b73452]	1276
	1277	expression_statement:
[4d51835]	1278	comma_expression_opt ';'
[bb7422a]	1279	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1280	;
[51b73452]	1281
[7e13b11]	1282	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1283	// parenthesis:
	1284	//
[446740a]	1285	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1286	//
[7e13b11]	1287	// switch O { }
	1288	//
	1289	// O{} => object-constructor for conditional, switch body ???
	1290	// O{} => O for conditional followed by switch body
	1291	//
	1292	// C++ has this problem, as it has the same constructor syntax.
	1293	//
	1294	// switch sizeof ( T ) { }
	1295	//
	1296	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1297	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1298	//
	1299	// Note the two grammar rules for sizeof (alignof)
	1300	//
	1301	// \| SIZEOF unary_expression
	1302	// \| SIZEOF '(' type_no_function ')'
	1303	//
	1304	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1305
[51b73452]	1306	selection_statement:
[647e2ea]	1307	IF '(' conditional_declaration ')' statement %prec THEN
	1308	// explicitly deal with the shift/reduce conflict on if/else
	1309	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1310	\| IF '(' conditional_declaration ')' statement ELSE statement
	1311	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1312	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1313	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1314	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1315	{
[bb7422a]	1316	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1317	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1318	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1319	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1320	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1321	// statement.
[b93c544]	1322	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1323	}
[0442f93f]	1324	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1325	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1326	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1327	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1328	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1329	{
[bb7422a]	1330	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1331	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1332	}
[0442f93f]	1333	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[253d0b4]	1334	{ SemanticError( yylloc, "illegal syntax, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1335	;
[b87a5ed]	1336
[473d1da0]	1337	conditional_declaration:
[35718a9]	1338	comma_expression
[569b118]	1339	{ $$ = new CondCtrl( nullptr, $1 ); }
[35718a9]	1340	\| c_declaration // no semi-colon
[569b118]	1341	{ $$ = new CondCtrl( $1, nullptr ); }
[35718a9]	1342	\| cfa_declaration // no semi-colon
[569b118]	1343	{ $$ = new CondCtrl( $1, nullptr ); }
[6d49ea3]	1344	\| declaration comma_expression // semi-colon separated
[569b118]	1345	{ $$ = new CondCtrl( $1, $2 ); }
[9fd9d015]	1346	;
[936e9f4]	1347
[de62360d]	1348	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1349	// clause allows a list of values and subranges.
[b87a5ed]	1350
	1351	case_value: // CFA
[4d51835]	1352	constant_expression { $$ = $1; }
	1353	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1354	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1355	\| subrange // CFA, subrange
	1356	;
[b87a5ed]	1357
	1358	case_value_list: // CFA
[6611177]	1359	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1360	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1361	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1362	;
[b87a5ed]	1363
	1364	case_label: // CFA
[0442f93f]	1365	CASE error // invalid syntax rule
[253d0b4]	1366	{ SemanticError( yylloc, "illegal syntax, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1367	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1368	\| CASE case_value_list error // invalid syntax rule
[253d0b4]	1369	{ SemanticError( yylloc, "illegal syntax, colon missing after case list." ); $$ = nullptr; }
[6611177]	1370	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1371	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1372	\| DEFAULT error // invalid syntax rule
[253d0b4]	1373	{ SemanticError( yylloc, "illegal syntax, colon missing after default." ); $$ = nullptr; }
[4d51835]	1374	;
[b87a5ed]	1375
	1376	case_label_list: // CFA
[4d51835]	1377	case_label
[6611177]	1378	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1379	;
[b87a5ed]	1380
	1381	case_clause: // CFA
[bb7422a]	1382	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1383	;
[b87a5ed]	1384
	1385	switch_clause_list_opt: // CFA
[4d51835]	1386	// empty
[58dd019]	1387	{ $$ = nullptr; }
[4d51835]	1388	\| switch_clause_list
	1389	;
[b87a5ed]	1390
	1391	switch_clause_list: // CFA
[9bd6105]	1392	case_label_list statement_list_nodecl
[bb7422a]	1393	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1394	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1395	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1396	;
[b87a5ed]	1397
[51b73452]	1398	iteration_statement:
[5695645]	1399	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[569b118]	1400	{ $$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1401	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1402	{
[569b118]	1403	$$ = new StatementNode( build_while( yylloc, new CondCtrl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1404	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1405	}
[473d1da0]	1406	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1407	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1408	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1409	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1410	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1411	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1412	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1413	{
[bb7422a]	1414	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1415	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1416	}
	1417	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1418	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1419	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1420	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1421	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1422	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1423	\| FOR '(' ')' statement ELSE statement // CFA
	1424	{
[bb7422a]	1425	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1426	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1427	}
[efc8f3e]	1428	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1429	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1430	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1431	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1432	;
	1433
[6d01d89]	1434	for_control_expression_list:
	1435	for_control_expression
	1436	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1437	// ForCtrl + ForCtrl:
	1438	// init + init => multiple declaration statements that are hoisted
	1439	// condition + condition => (expression) && (expression)
	1440	// change + change => (expression), (expression)
	1441	{
	1442	$1->init->set_last( $3->init );
	1443	if ( $1->condition ) {
	1444	if ( $3->condition ) {
[bb7422a]	1445	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1446	} // if
	1447	} else $1->condition = $3->condition;
	1448	if ( $1->change ) {
	1449	if ( $3->change ) {
[bb7422a]	1450	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1451	} // if
	1452	} else $1->change = $3->change;
	1453	$$ = $1;
	1454	}
[6d01d89]	1455	;
	1456
[51b73452]	1457	for_control_expression:
[6d01d89]	1458	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1459	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1460	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1461	{
[253d0b4]	1462	$$ = new ForCtrl( $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr, $3, $5 );
[1cdc052]	1463	}
[6d01d89]	1464	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1465	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1466
[aa122e9]	1467	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1468	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1469	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1470	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1471
[aa122e9]	1472	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1473	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1474	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1475	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1476
[aa122e9]	1477	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1478	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1479	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1480	{
[4fee301]	1481	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1482	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1483	}
[aa122e9]	1484	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1485	{
[4fee301]	1486	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1487	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1488	}
[aa122e9]	1489	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1490	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1491	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1492	{
[4fee301]	1493	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1494	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1495	}
[aa122e9]	1496	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1497	{
[4fee301]	1498	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1499	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1500	}
[65ef0cd]	1501	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1502	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1503	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1504	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1505	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1506	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1507	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1508	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1509	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1510	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1511
[089b39e1]	1512	// These rules accept a comma_expression for the initialization, when only an identifier is correct. Being
	1513	// permissive allows for a better error message from forCtrl.
[f1aeede]	1514	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1515	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1516	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1517	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1518
[d78c238]	1519	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1520	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1521	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1522	{
[4fee301]	1523	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1524	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1525	}
[52be5948]	1526	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1527	{
[4fee301]	1528	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1529	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1530	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1531	}
[65ef0cd]	1532	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[01afd8d]	1533	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1534
	1535	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1536	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1537	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1538	{
[4fee301]	1539	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1540	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1541	}
[52be5948]	1542	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1543	{
[4fee301]	1544	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1545	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1546	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1547	}
	1548	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1549	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1550	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1551	{
[4fee301]	1552	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1553	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1554	}
[52be5948]	1555	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1556	{
[4fee301]	1557	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1558	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1559	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1560	}
[dbedd71]	1561	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[01afd8d]	1562	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1563
[569b118]	1564	// \| '@' identifier ';' comma_expression // CFA
[d78c238]	1565	\| declaration comma_expression // CFA
[bb7422a]	1566	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1567	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1568	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1569
[d78c238]	1570	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1571	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1572	\| declaration '@' updowneq comma_expression // CFA
	1573	{
[4fee301]	1574	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1575	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1576	}
[52be5948]	1577	\| declaration comma_expression updowneq '@' // CFA
	1578	{
[4fee301]	1579	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1580	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1581	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1582	}
[d78c238]	1583
	1584	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1585	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1586	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1587	{
[4fee301]	1588	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1589	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1590	}
[52be5948]	1591	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1592	{
[4fee301]	1593	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1594	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1595	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1596	}
	1597	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1598	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1599	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1600	{
[4fee301]	1601	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1602	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1603	}
[52be5948]	1604	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1605	{
[4fee301]	1606	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[253d0b4]	1607	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "illegal syntax, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1608	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1609	}
[65ef0cd]	1610	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[01afd8d]	1611	{ SemanticError( yylloc, "illegal syntax, missing low/high value for ascending/descending range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1612
[6d2b3dc]	1613	\| comma_expression ';' type_type_specifier // CFA, enum type
[ca33b15]	1614	{
[6d2b3dc]	1615	$$ = enumRangeCtrl( $1, OperKinds::LEThan, new ExpressionNode( new ast::TypeExpr( yylloc, $3->clone()->buildType() ) ), $3 );
[ca33b15]	1616	}
[a8ced63]	1617	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1618	{
[55ba259e]	1619	if ( $3 == OperKinds::GThan ) {
	1620	SemanticError( yylloc, "all enumeration ranges are equal (all values). Add an equal, e.g., ~=, -~=." ); $$ = nullptr;
	1621	$3 = OperKinds::GEThan;
	1622	} // if
[6d2b3dc]	1623	$$ = enumRangeCtrl( $1, $3, new ExpressionNode( new ast::TypeExpr( yylloc, $4->clone()->buildType() ) ), $4 );
[d78c238]	1624	}
[9fd9d015]	1625	;
[98337569]	1626
[a8ced63]	1627	enum_key:
	1628	type_name
[4941716]	1629	{
	1630	typedefTable.makeTypedef( *$1->symbolic.name, "enum_type_nobody 1" );
	1631	$$ = DeclarationNode::newEnum( $1->symbolic.name, nullptr, false, false );
	1632	}
[a8ced63]	1633	\| ENUM identifier
[4941716]	1634	{
	1635	typedefTable.makeTypedef( *$2, "enum_type_nobody 2" );
	1636	$$ = DeclarationNode::newEnum( $2, nullptr, false, false );
	1637	}
[a8ced63]	1638	\| ENUM type_name
[4941716]	1639	{
	1640	typedefTable.makeTypedef( *$2->symbolic.name, "enum_type_nobody 3" );
	1641	$$ = DeclarationNode::newEnum( $2->symbolic.name, nullptr, false, false );
	1642	}
[a8ced63]	1643	;
	1644
[55ba259e]	1645	// This rule exists to handle the ambiguity with unary operator '~'. The rule is the same as updowneq minus the '~'.
	1646	// Specifically, "for ( ~5 )" means the complement of 5, not loop 0..4. Hence, in this case "for ( ~= 5 )", i.e., 0..5,
	1647	// it is not possible to just remove the '='. The entire '~=' must be removed.
[d78c238]	1648	downupdowneq:
[01afd8d]	1649	ErangeUp
	1650	{ $$ = OperKinds::LThan; }
	1651	\| ErangeDown
[d78c238]	1652	{ $$ = OperKinds::GThan; }
	1653	\| ErangeUpEq
	1654	{ $$ = OperKinds::LEThan; }
	1655	\| ErangeDownEq
	1656	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1657	;
[51b73452]	1658
[d78c238]	1659	updown:
[01afd8d]	1660	'~' // shorthand 0 ~ 10 => 0 +~ 10
	1661	{ $$ = OperKinds::LThan; }
	1662	\| ErangeUp
[cc22003]	1663	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1664	\| ErangeDown
	1665	{ $$ = OperKinds::GThan; }
[9fd9d015]	1666	;
[d78c238]	1667
	1668	updowneq:
	1669	updown
	1670	\| ErangeUpEq
	1671	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1672	\| ErangeDownEq
	1673	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1674	;
[cc22003]	1675
[51b73452]	1676	jump_statement:
[44a81853]	1677	GOTO identifier_or_type_name ';'
[bb7422a]	1678	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1679	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1680	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1681	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1682	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1683	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1684	\| fall_through_name ';' // CFA
[bb7422a]	1685	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1686	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1687	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1688	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1689	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1690	\| CONTINUE ';'
[de62360d]	1691	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1692	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1693	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1694	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1695	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1696	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1697	\| BREAK ';'
[de62360d]	1698	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1699	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1700	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1701	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1702	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1703	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1704	\| RETURN comma_expression_opt ';'
[bb7422a]	1705	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1706	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1707	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1708	\| SUSPEND ';'
[bb7422a]	1709	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1710	\| SUSPEND compound_statement
[bb7422a]	1711	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1712	\| SUSPEND COROUTINE ';'
[bb7422a]	1713	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1714	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1715	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1716	\| SUSPEND GENERATOR ';'
[bb7422a]	1717	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1718	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1719	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1720	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1721	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1722	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1723	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1724	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1725	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1726	;
[51b73452]	1727
[6a276a0]	1728	fall_through_name: // CFA
	1729	FALLTHRU
	1730	\| FALLTHROUGH
	1731	;
	1732
[8b47e50]	1733	with_statement:
[e78966e]	1734	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1735	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1736	;
	1737
[bf20567]	1738	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1739	mutex_statement:
[bf20567]	1740	MUTEX '(' argument_expression_list_opt ')' statement
	1741	{
[253d0b4]	1742	if ( ! $3 ) { SemanticError( yylloc, "illegal syntax, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1743	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1744	}
[b6b3c42]	1745	;
	1746
[51d6d6a]	1747	when_clause:
[6a276a0]	1748	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1749	;
	1750
[5b2edbc]	1751	when_clause_opt:
	1752	// empty
[135b431]	1753	{ $$ = nullptr; }
[51d6d6a]	1754	\| when_clause
[5b2edbc]	1755	;
	1756
[4a063df]	1757	cast_expression_list:
	1758	cast_expression
	1759	\| cast_expression_list ',' cast_expression
[a491a3c]	1760	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1761	;
	1762
	1763	timeout:
[9fd9d015]	1764	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1765	;
	1766
[9fd9d015]	1767	wor:
	1768	OROR
	1769	\| WOR
	1770
	1771	waitfor:
	1772	WAITFOR '(' cast_expression ')'
	1773	{ $$ = $3; }
	1774	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1775	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1776	;
	1777
[9fd9d015]	1778	wor_waitfor_clause:
[51d6d6a]	1779	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1780	// Called first: create header for WaitForStmt.
[bb7422a]	1781	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1782	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1783	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1784	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1785	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1786	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1787	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1788	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1789	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[253d0b4]	1790	{ SemanticError( yylloc, "illegal syntax, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1791	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1792	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1793	;
	1794
	1795	waitfor_statement:
[9fd9d015]	1796	wor_waitfor_clause %prec THEN
	1797	{ $$ = new StatementNode( $1 ); }
	1798	;
	1799
	1800	wand:
	1801	ANDAND
	1802	\| WAND
	1803	;
	1804
	1805	waituntil:
[04c78215]	1806	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1807	{ $$ = $3; }
	1808	;
	1809
	1810	waituntil_clause:
	1811	when_clause_opt waituntil statement
[c86b08d]	1812	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1813	\| '(' wor_waituntil_clause ')'
[c86b08d]	1814	{ $$ = $2; }
[9fd9d015]	1815	;
	1816
	1817	wand_waituntil_clause:
	1818	waituntil_clause %prec THEN
[c86b08d]	1819	{ $$ = $1; }
[9fd9d015]	1820	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1821	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1822	;
	1823
	1824	wor_waituntil_clause:
	1825	wand_waituntil_clause
[c86b08d]	1826	{ $$ = $1; }
[70056ed]	1827	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1828	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1829	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1830	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1831	;
	1832
	1833	waituntil_statement:
	1834	wor_waituntil_clause %prec THEN
[f259682]	1835	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1836	;
	1837
[11ab0b4a]	1838	corun_statement:
	1839	CORUN statement
[eb779d5]	1840	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1841	;
	1842
	1843	cofor_statement:
	1844	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1845	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1846	;
	1847
[51b73452]	1848	exception_statement:
[bb7422a]	1849	TRY compound_statement handler_clause %prec THEN
	1850	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1851	\| TRY compound_statement finally_clause
[bb7422a]	1852	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1853	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1854	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1855	;
[51b73452]	1856
	1857	handler_clause:
[206ecae]	1858	handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1859	{ $$ = new ClauseNode( build_catch( yylloc, $1, $3, $4, $6 ) ); }
	1860	\| handler_clause handler_key '(' exception_declaration handler_predicate_opt ')' compound_statement
	1861	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $4, $5, $7 ) ) ); }
[994d080]	1862	;
	1863
	1864	handler_predicate_opt:
[7fdb94e1]	1865	// empty
[cbce272]	1866	{ $$ = nullptr; }
[6a276a0]	1867	\| ';' conditional_expression { $$ = $2; }
[307a732]	1868	;
	1869
	1870	handler_key:
[bb7422a]	1871	CATCH { $$ = ast::Terminate; }
	1872	\| RECOVER { $$ = ast::Terminate; }
	1873	\| CATCHRESUME { $$ = ast::Resume; }
	1874	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1875	;
[51b73452]	1876
	1877	finally_clause:
[6611177]	1878	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1879	;
[51b73452]	1880
	1881	exception_declaration:
[d0ffed1]	1882	// No SUE declaration in parameter list.
	1883	type_specifier_nobody
	1884	\| type_specifier_nobody declarator
[c0a33d2]	1885	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1886	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1887	{ $$ = $2->addType( $1 ); }
[033ff37]	1888	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1889	{ $$ = $1->addName( $2 ); }
[c0aa336]	1890	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1891	;
[51b73452]	1892
[2a8427c6]	1893	enable_disable_statement:
	1894	enable_disable_key identifier_list compound_statement
	1895	;
	1896
	1897	enable_disable_key:
	1898	ENABLE
	1899	\| DISABLE
	1900	;
	1901
[51b73452]	1902	asm_statement:
[ab57786]	1903	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1904	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1905	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1906	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1907	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1908	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1909	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1910	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1911	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1912	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1913	;
	1914
	1915	asm_volatile_opt: // GCC
	1916	// empty
	1917	{ $$ = false; }
	1918	\| VOLATILE
	1919	{ $$ = true; }
[4d51835]	1920	;
[b87a5ed]	1921
	1922	asm_operands_opt: // GCC
[4d51835]	1923	// empty
[58dd019]	1924	{ $$ = nullptr; } // use default argument
[4d51835]	1925	\| asm_operands_list
	1926	;
[b87a5ed]	1927
	1928	asm_operands_list: // GCC
[4d51835]	1929	asm_operand
	1930	\| asm_operands_list ',' asm_operand
[b93c544]	1931	{ $$ = $1->set_last( $3 ); }
[4d51835]	1932	;
[b87a5ed]	1933
	1934	asm_operand: // GCC
[ab57786]	1935	string_literal '(' constant_expression ')'
[32d6fdc]	1936	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1937	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1938	{
[32d6fdc]	1939	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1940	delete $2.str;
	1941	}
[7f5566b]	1942	;
	1943
[4e06c1e]	1944	asm_clobbers_list_opt: // GCC
[7f5566b]	1945	// empty
[58dd019]	1946	{ $$ = nullptr; } // use default argument
[ab57786]	1947	\| string_literal
[32d6fdc]	1948	{ $$ = $1; }
[ab57786]	1949	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1950	{ $$ = $1->set_last( $3 ); }
[4d51835]	1951	;
[b87a5ed]	1952
[7f5566b]	1953	label_list:
[033ff37]	1954	identifier
[ab57786]	1955	{
[bb7422a]	1956	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1957	delete $1; // allocated by lexer
	1958	}
[033ff37]	1959	\| label_list ',' identifier
[ab57786]	1960	{
[bb7422a]	1961	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1962	delete $3; // allocated by lexer
	1963	}
[4d51835]	1964	;
[51b73452]	1965
[e1d66c84]	1966	// **************************** DECLARATIONS *******************************
[51b73452]	1967
[b87a5ed]	1968	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1969	// empty
[58dd019]	1970	{ $$ = nullptr; }
[4d51835]	1971	\| declaration_list
	1972	;
[51b73452]	1973
	1974	declaration_list:
[4d51835]	1975	declaration
[647e2ea]	1976	\| declaration_list declaration
	1977	{ $$ = $1->set_last( $2 ); }
[4d51835]	1978	;
[51b73452]	1979
[407bde5]	1980	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1981	// empty
[58dd019]	1982	{ $$ = nullptr; }
[35718a9]	1983	\| KR_parameter_list
[4d51835]	1984	;
[51b73452]	1985
[35718a9]	1986	KR_parameter_list:
[c25f16b]	1987	c_declaration ';'
	1988	{ $$ = $1; }
	1989	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1990	{ $$ = $1->set_last( $2 ); }
[4d51835]	1991	;
[b87a5ed]	1992
[51b1202]	1993	local_label_declaration_opt: // GCC, local label
[4d51835]	1994	// empty
[51b1202]	1995	\| local_label_declaration_list
[4d51835]	1996	;
[b87a5ed]	1997
[51b1202]	1998	local_label_declaration_list: // GCC, local label
	1999	LABEL local_label_list ';'
	2000	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	2001	;
[b87a5ed]	2002
[51b1202]	2003	local_label_list: // GCC, local label
[033ff37]	2004	identifier_or_type_name
	2005	\| local_label_list ',' identifier_or_type_name
[4d51835]	2006	;
[b87a5ed]	2007
[936e9f4]	2008	declaration: // old & new style declarations
[35718a9]	2009	c_declaration ';'
	2010	\| cfa_declaration ';' // CFA
[b9f6791f]	2011	\| static_assert ';' // C11
[4d51835]	2012	;
[b87a5ed]	2013
[b9be000b]	2014	static_assert:
[b9f6791f]	2015	STATICASSERT '(' constant_expression ',' string_literal ')' // C11
[32d6fdc]	2016	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b9f6791f]	2017	\| STATICASSERT '(' constant_expression ')' // CFA
[bb7422a]	2018	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	2019
[de62360d]	2020	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	2021	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	2022	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	2023	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	2024	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	2025	// block, but cannot be mixed within a specific declaration.
[c11e31c]	2026	//
[b87a5ed]	2027	// CFA C
	2028	// [10] int x; int x[10]; // array of 10 integers
	2029	// [10] * char y; char *y[10]; // array of 10 pointers to char
	2030
[c0aa336]	2031	cfa_declaration: // CFA
[4cc585b]	2032	cfa_variable_declaration
	2033	\| cfa_typedef_declaration
	2034	\| cfa_function_declaration
	2035	\| type_declaring_list
[2501ae5]	2036	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2037	\| trait_specifier
[4d51835]	2038	;
[b87a5ed]	2039
[c0aa336]	2040	cfa_variable_declaration: // CFA
	2041	cfa_variable_specifier initializer_opt
[7fdb94e1]	2042	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2043	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2044	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2045	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2046	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2047	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2048	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2049	;
[b87a5ed]	2050
[c0aa336]	2051	cfa_variable_specifier: // CFA
[de62360d]	2052	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2053	// storage-class
[c0aa336]	2054	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2055	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2056	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2057	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[dd54139]	2058	\| multi_array_dimension cfa_abstract_tuple identifier_or_type_name asm_name_opt
	2059	{ $$ = $2->addNewArray( $1 )->addName( $3 )->addAsmName( $4 ); }
	2060	\| multi_array_dimension type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
	2061	{ $$ = $3->addNewArray( $1 )->addQualifiers( $2 )->addName( $4 )->addAsmName( $5 ); }
[2ab31fd]	2062
	2063	// [ int s, int t ]; // declare s and t
	2064	// [ int, int ] f();
	2065	// [] g( int );
	2066	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2067	// g( x + y );
	2068	\| cfa_function_return asm_name_opt
	2069	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2070	\| type_qualifier_list cfa_function_return asm_name_opt
	2071	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2072	;
[b87a5ed]	2073
[c0aa336]	2074	cfa_function_declaration: // CFA
	2075	cfa_function_specifier
	2076	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2077	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2078	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2079	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2080	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2081	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2082	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2083	{
[481115f]	2084	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2085	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2086	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2087	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2088	}
	2089	;
[b87a5ed]	2090
[c0aa336]	2091	cfa_function_specifier: // CFA
[647e2ea]	2092	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2093	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2094	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2095	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2096	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2097	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2098
[2871210]	2099	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2100	//
[647e2ea]	2101	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2102	// '[' ']' type_specifier
	2103	//
[2871210]	2104	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2105	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2106	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2107	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2108	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2109	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2110	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2111	;
[b87a5ed]	2112
[c0aa336]	2113	cfa_function_return: // CFA
[917f67dd]	2114	'[' cfa_parameter_list ']'
	2115	{ $$ = DeclarationNode::newTuple( $2 ); }
	2116	\| '[' cfa_parameter_list ',' cfa_abstract_parameter_list ']'
[b048dc3]	2117	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[917f67dd]	2118	{ $$ = DeclarationNode::newTuple( $2->set_last( $4 ) ); }
[4d51835]	2119	;
[b87a5ed]	2120
[c0aa336]	2121	cfa_typedef_declaration: // CFA
	2122	TYPEDEF cfa_variable_specifier
[4d51835]	2123	{
[71a422a]	2124	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2125	$$ = $2->addTypedef();
	2126	}
[c0aa336]	2127	\| TYPEDEF cfa_function_specifier
[4d51835]	2128	{
[71a422a]	2129	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2130	$$ = $2->addTypedef();
	2131	}
[647e2ea]	2132	\| cfa_typedef_declaration ',' identifier
[4d51835]	2133	{
[647e2ea]	2134	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2135	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2136	}
	2137	;
[b87a5ed]	2138
[de62360d]	2139	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2140	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2141
	2142	typedef_declaration:
[4d51835]	2143	TYPEDEF type_specifier declarator
	2144	{
[71a422a]	2145	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2146	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2147	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2148	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2149	}
[c25f16b]	2150	\| typedef_declaration ',' declarator
[4d51835]	2151	{
[c25f16b]	2152	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2153	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2154	}
[de62360d]	2155	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2156	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2157	\| type_specifier TYPEDEF declarator
[ac235a8]	2158	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2159	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2160	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2161	;
[b87a5ed]	2162
[721f17a]	2163	typedef_expression:
[25744d2]	2164	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2165	TYPEDEF identifier '=' assignment_expression
[4d51835]	2166	{
[ac235a8]	2167	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2168	}
[c25f16b]	2169	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2170	{
[ac235a8]	2171	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2172	}
	2173	;
[51b73452]	2174
[c0aa336]	2175	c_declaration:
[4cc585b]	2176	declaration_specifier declaring_list
[7fdb94e1]	2177	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2178	\| typedef_declaration
[25744d2]	2179	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2180	\| sue_declaration_specifier
[0bcd707]	2181	{
	2182	assert( $1->type );
[1a73dbb]	2183	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[253d0b4]	2184	SemanticError( yylloc, "illegal syntax, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2185	}
	2186	// enums are never empty declarations because there must have at least one enumeration.
	2187	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[253d0b4]	2188	SemanticError( yylloc, "illegal syntax, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2189	}
	2190	}
[4d51835]	2191	;
[51b73452]	2192
	2193	declaring_list:
[de62360d]	2194	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2195	// storage-class
[1f771fc]	2196	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2197	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2198	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2199	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2200
	2201	\| general_function_declarator asm_name_opt
	2202	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2203	\| general_function_declarator asm_name_opt '=' VOID
	2204	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2205
[4d51835]	2206	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2207	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2208	;
[b87a5ed]	2209
[1f771fc]	2210	general_function_declarator:
	2211	function_type_redeclarator
	2212	\| function_declarator
	2213	;
	2214
[b87a5ed]	2215	declaration_specifier: // type specifier + storage class
[4d51835]	2216	basic_declaration_specifier
[84d58c5]	2217	\| type_declaration_specifier
[79a6b17]	2218	\| sue_declaration_specifier
[0442f93f]	2219	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2220	{
[253d0b4]	2221	SemanticError( yylloc, "illegal syntax, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2222	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2223	$$ = nullptr;
	2224	}
	2225	;
	2226
	2227	invalid_types:
	2228	aggregate_key
	2229	\| basic_type_name
	2230	\| indirect_type
[4d51835]	2231	;
[b87a5ed]	2232
[d0ffed1]	2233	declaration_specifier_nobody: // type specifier + storage class - {...}
	2234	// Preclude SUE declarations in restricted scopes:
	2235	//
	2236	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2237	//
	2238	// because it is impossible to call f due to name equivalence.
	2239	basic_declaration_specifier
	2240	\| sue_declaration_specifier_nobody
[84d58c5]	2241	\| type_declaration_specifier
[d0ffed1]	2242	;
	2243
	2244	type_specifier: // type specifier
[4d51835]	2245	basic_type_specifier
	2246	\| sue_type_specifier
[84d58c5]	2247	\| type_type_specifier
[4d51835]	2248	;
[b87a5ed]	2249
[d0ffed1]	2250	type_specifier_nobody: // type specifier - {...}
	2251	// Preclude SUE declarations in restricted scopes:
	2252	//
	2253	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2254	//
	2255	// because it is impossible to call f due to name equivalence.
	2256	basic_type_specifier
	2257	\| sue_type_specifier_nobody
[84d58c5]	2258	\| type_type_specifier
[d0ffed1]	2259	;
	2260
[b87a5ed]	2261	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2262	// empty
[58dd019]	2263	{ $$ = nullptr; }
[4d51835]	2264	\| type_qualifier_list
	2265	;
[51b73452]	2266
	2267	type_qualifier_list:
[de62360d]	2268	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2269	//
[de62360d]	2270	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2271	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2272	// appeared only once.
[4d51835]	2273	type_qualifier
	2274	\| type_qualifier_list type_qualifier
	2275	{ $$ = $1->addQualifiers( $2 ); }
	2276	;
[51b73452]	2277
	2278	type_qualifier:
[4d51835]	2279	type_qualifier_name
[6cef439]	2280	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2281	\| attribute // trick handles most attribute locations
[4d51835]	2282	;
[51b73452]	2283
	2284	type_qualifier_name:
[4d51835]	2285	CONST
[6cef439]	2286	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2287	\| RESTRICT
[6cef439]	2288	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2289	\| VOLATILE
[6cef439]	2290	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2291	\| ATOMIC
[6cef439]	2292	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2293
[446740a]	2294	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2295	//
	2296	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2297	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2298	\| forall
[6cef439]	2299	{ $$ = build_forall( $1 ); }
[a16a7ec]	2300	;
	2301
	2302	forall:
[35718a9]	2303	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2304	{ $$ = $3; }
[4d51835]	2305	;
[51b73452]	2306
	2307	declaration_qualifier_list:
[4d51835]	2308	storage_class_list
[de62360d]	2309	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2310	{ $$ = $1->addQualifiers( $2 ); }
	2311	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2312	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2313	;
[51b73452]	2314
	2315	storage_class_list:
[de62360d]	2316	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2317	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2318	//
[de62360d]	2319	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2320	// specifiers in a declaration.
[4d51835]	2321	storage_class
	2322	\| storage_class_list storage_class
	2323	{ $$ = $1->addQualifiers( $2 ); }
	2324	;
[51b73452]	2325
	2326	storage_class:
[4d51835]	2327	EXTERN
[36e6f10]	2328	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2329	\| STATIC
[36e6f10]	2330	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2331	\| AUTO
[36e6f10]	2332	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2333	\| REGISTER
[36e6f10]	2334	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2335	\| THREADLOCALGCC // GCC
[36e6f10]	2336	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2337	\| THREADLOCALC11 // C11
[36e6f10]	2338	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2339	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2340	\| INLINE // C99
[36e6f10]	2341	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2342	\| FORTRAN // C99
[36e6f10]	2343	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2344	\| NORETURN // C11
[36e6f10]	2345	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2346	;
[51b73452]	2347
	2348	basic_type_name:
[6cef439]	2349	basic_type_name_type
	2350	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2351	;
	2352
	2353	// Just an intermediate value for conversion.
	2354	basic_type_name_type:
[201aeb9]	2355	VOID
[e048ece]	2356	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2357	\| BOOL // C99
[e048ece]	2358	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2359	\| CHAR
[e048ece]	2360	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2361	\| INT
[e048ece]	2362	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2363	\| INT128
[e048ece]	2364	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2365	\| UINT128
[e048ece]	2366	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2367	\| FLOAT
[e048ece]	2368	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2369	\| DOUBLE
[e048ece]	2370	{ $$ = build_basic_type( TypeData::Double ); }
[c5f69fd]	2371	\| FLOAT80
	2372	{ $$ = build_basic_type( TypeData::Float80 ); }
[e15853c]	2373	\| uuFLOAT128
[e048ece]	2374	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[c5f69fd]	2375	\| FLOAT16
	2376	{ $$ = build_basic_type( TypeData::Float16 ); }
	2377	\| FLOAT32
	2378	{ $$ = build_basic_type( TypeData::Float32 ); }
	2379	\| FLOAT32X
	2380	{ $$ = build_basic_type( TypeData::Float32x ); }
	2381	\| FLOAT64
	2382	{ $$ = build_basic_type( TypeData::Float64 ); }
	2383	\| FLOAT64X
	2384	{ $$ = build_basic_type( TypeData::Float64x ); }
	2385	\| FLOAT128
	2386	{ $$ = build_basic_type( TypeData::Float128 ); }
[569b118]	2387	// https://developer.arm.com/documentation/den0018/a/NEON-Intrinsics/Accessing-vector-types-from-C
[c5f69fd]	2388	\| FLOAT128X
	2389	{ $$ = build_basic_type( TypeData::Float128x ); }
	2390	\| FLOAT32X4
	2391	{ $$ = build_basic_type( TypeData::Float32x4 ); }
	2392	\| FLOAT64X2
	2393	{ $$ = build_basic_type( TypeData::Float64x2 ); }
	2394	\| SVFLOAT32
	2395	{ $$ = build_basic_type( TypeData::Svfloat32 ); }
	2396	\| SVFLOAT64
	2397	{ $$ = build_basic_type( TypeData::Svfloat64 ); }
	2398	\| SVBOOL
	2399	{ $$ = build_basic_type( TypeData::Svbool ); }
[15f769c]	2400	\| DECIMAL32
	2401	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2402	\| DECIMAL64
	2403	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2404	\| DECIMAL128
	2405	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2406	\| COMPLEX // C99
[e048ece]	2407	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2408	\| IMAGINARY // C99
[e048ece]	2409	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2410	\| SIGNED
[e048ece]	2411	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2412	\| UNSIGNED
[e048ece]	2413	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2414	\| SHORT
[e048ece]	2415	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2416	\| LONG
[e048ece]	2417	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2418	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2419	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2420	\| AUTO_TYPE
[e048ece]	2421	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2422	\| vtable
	2423	;
	2424
	2425	vtable_opt:
	2426	// empty
	2427	{ $$ = nullptr; }
[9380add]	2428	\| vtable
[1f652a7]	2429	;
	2430
	2431	vtable:
[8f6f3729]	2432	VTABLE '(' type_name ')' default_opt
[6cef439]	2433	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2434	;
	2435
	2436	default_opt:
	2437	// empty
	2438	{ $$ = nullptr; }
	2439	\| DEFAULT
	2440	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2441	;
[51b73452]	2442
	2443	basic_declaration_specifier:
[4d51835]	2444	// A semantic check is necessary for conflicting storage classes.
	2445	basic_type_specifier
	2446	\| declaration_qualifier_list basic_type_specifier
	2447	{ $$ = $2->addQualifiers( $1 ); }
	2448	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2449	{ $$ = $1->addQualifiers( $2 ); }
	2450	\| basic_declaration_specifier storage_class type_qualifier_list
	2451	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2452	\| basic_declaration_specifier storage_class basic_type_specifier
	2453	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2454	;
[51b73452]	2455
	2456	basic_type_specifier:
[84d58c5]	2457	direct_type
[f38e7d7]	2458	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2459	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2460	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2461	;
[51b73452]	2462
[84d58c5]	2463	direct_type:
[4d51835]	2464	basic_type_name
	2465	\| type_qualifier_list basic_type_name
	2466	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2467	\| direct_type type_qualifier
[4d51835]	2468	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2469	\| direct_type basic_type_name
[4d51835]	2470	{ $$ = $1->addType( $2 ); }
	2471	;
[51b73452]	2472
[84d58c5]	2473	indirect_type:
[b6ad601]	2474	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2475	{ $$ = $3; }
[b6ad601]	2476	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2477	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2478	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2479	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2480	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2481	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2482	\| ZERO_T // CFA
[e048ece]	2483	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2484	\| ONE_T // CFA
[e048ece]	2485	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2486	;
[51b73452]	2487
[d0ffed1]	2488	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2489	sue_type_specifier
	2490	\| declaration_qualifier_list sue_type_specifier
	2491	{ $$ = $2->addQualifiers( $1 ); }
	2492	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2493	{ $$ = $1->addQualifiers( $2 ); }
	2494	\| sue_declaration_specifier storage_class type_qualifier_list
	2495	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2496	;
[51b73452]	2497
[d0ffed1]	2498	sue_type_specifier: // struct, union, enum + type specifier
	2499	elaborated_type
[fdca7c6]	2500	\| type_qualifier_list
	2501	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2502	elaborated_type
	2503	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2504	\| sue_type_specifier type_qualifier
[284da8c]	2505	{
	2506	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2507	$$ = $1->addQualifiers( $2 );
	2508	}
[4d51835]	2509	;
[51b73452]	2510
[d0ffed1]	2511	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2512	sue_type_specifier_nobody
	2513	\| declaration_qualifier_list sue_type_specifier_nobody
	2514	{ $$ = $2->addQualifiers( $1 ); }
	2515	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2516	{ $$ = $1->addQualifiers( $2 ); }
	2517	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2518	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2519	;
	2520
	2521	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2522	elaborated_type_nobody
	2523	\| type_qualifier_list elaborated_type_nobody
	2524	{ $$ = $2->addQualifiers( $1 ); }
	2525	\| sue_type_specifier_nobody type_qualifier
	2526	{ $$ = $1->addQualifiers( $2 ); }
	2527	;
	2528
[84d58c5]	2529	type_declaration_specifier:
	2530	type_type_specifier
	2531	\| declaration_qualifier_list type_type_specifier
[4d51835]	2532	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2533	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2534	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2535	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2536	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2537	;
[b87a5ed]	2538
[84d58c5]	2539	type_type_specifier: // typedef types
	2540	type_name
[6cef439]	2541	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2542	\| type_qualifier_list type_name
[6cef439]	2543	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2544	\| type_type_specifier type_qualifier
	2545	{ $$ = $1->addQualifiers( $2 ); }
	2546	;
	2547
	2548	type_name:
[4d51835]	2549	TYPEDEFname
[6cef439]	2550	{ $$ = build_typedef( $1 ); }
[84d58c5]	2551	\| '.' TYPEDEFname
[6cef439]	2552	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2553	\| type_name '.' TYPEDEFname
[6cef439]	2554	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2555	\| typegen_name
	2556	\| '.' typegen_name
[6cef439]	2557	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2558	\| type_name '.' typegen_name
[6cef439]	2559	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2560	;
	2561
	2562	typegen_name: // CFA
[65d6de4]	2563	TYPEGENname
[6cef439]	2564	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2565	\| TYPEGENname '(' ')'
[6cef439]	2566	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2567	\| TYPEGENname '(' type_list ')'
[6cef439]	2568	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2569	;
[51b73452]	2570
[d0ffed1]	2571	elaborated_type: // struct, union, enum
[c0aa336]	2572	aggregate_type
	2573	\| enum_type
[4d51835]	2574	;
[51b73452]	2575
[d0ffed1]	2576	elaborated_type_nobody: // struct, union, enum - {...}
	2577	aggregate_type_nobody
	2578	\| enum_type_nobody
	2579	;
	2580
[7e13b11]	2581	// ************************ AGGREGATE *****************************
	2582
[d0ffed1]	2583	aggregate_type: // struct, union
[fc20514]	2584	aggregate_key attribute_list_opt
	2585	{ forall = false; } // reset
	2586	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2587	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2588	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2589	{
[71a422a]	2590	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2591	forall = false; // reset
	2592	}
[284da8c]	2593	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2594	{
	2595	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2596	}
[f9c3100]	2597	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2598	{
[71a422a]	2599	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2600	forall = false; // reset
	2601	}
[284da8c]	2602	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2603	{
[6cef439]	2604	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2605	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2606	}
	2607	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2608	{
[71a422a]	2609	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2610	forall = false; // reset
	2611	}
	2612	'{' field_declaration_list_opt '}' type_parameters_opt
	2613	{
[6cef439]	2614	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2615	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2616	}
[d0ffed1]	2617	\| aggregate_type_nobody
	2618	;
	2619
[284da8c]	2620	type_parameters_opt:
	2621	// empty
	2622	{ $$ = nullptr; } %prec '}'
	2623	\| '(' type_list ')'
	2624	{ $$ = $2; }
	2625	;
	2626
[d0ffed1]	2627	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2628	aggregate_key attribute_list_opt identifier
[84d58c5]	2629	{
[71a422a]	2630	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2631	forall = false; // reset
[84d58c5]	2632	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2633	}
[73f04fd]	2634	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2635	{
[fc20514]	2636	forall = false; // reset
[65d6de4]	2637	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2638	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2639	// delete newFromTypeGen.
[6cef439]	2640	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2641	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2642	} else {
[6cef439]	2643	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2644	$3->symbolic.name = nullptr; // copied to $$
	2645	$3->symbolic.actuals = nullptr;
[9fa61f5]	2646	delete $3;
	2647	}
[65d6de4]	2648	}
[4d51835]	2649	;
[51b73452]	2650
	2651	aggregate_key:
[e307e12]	2652	aggregate_data
	2653	\| aggregate_control
	2654	;
	2655
	2656	aggregate_data:
[1f652a7]	2657	STRUCT vtable_opt
[bb7422a]	2658	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2659	\| UNION
[bb7422a]	2660	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2661	\| EXCEPTION // CFA
[bb7422a]	2662	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2663	;
	2664
	2665	aggregate_control: // CFA
[cbbd8fd7]	2666	MONITOR
[bb7422a]	2667	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2668	\| MUTEX STRUCT
[bb7422a]	2669	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2670	\| GENERATOR
[bb7422a]	2671	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2672	\| MUTEX GENERATOR
[bb7422a]	2673	{
	2674	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2675	$$ = ast::AggregateDecl::NoAggregate;
	2676	}
[d3bc0ad]	2677	\| COROUTINE
[bb7422a]	2678	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2679	\| MUTEX COROUTINE
[bb7422a]	2680	{
	2681	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2682	$$ = ast::AggregateDecl::NoAggregate;
	2683	}
[d3bc0ad]	2684	\| THREAD
[bb7422a]	2685	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2686	\| MUTEX THREAD
[bb7422a]	2687	{
	2688	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2689	$$ = ast::AggregateDecl::NoAggregate;
	2690	}
[4d51835]	2691	;
[51b73452]	2692
[7fdb94e1]	2693	field_declaration_list_opt:
[5d125e4]	2694	// empty
[58dd019]	2695	{ $$ = nullptr; }
[7fdb94e1]	2696	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2697	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2698	;
[51b73452]	2699
	2700	field_declaration:
[679e644]	2701	type_specifier field_declaring_list_opt ';'
[d8454b9]	2702	{
	2703	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2704	$$ = fieldDecl( $1, $2 );
	2705	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2706	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2707	// printf( "\tattr %s\n", attr->name.c_str() );
	2708	// } // for
	2709	}
[0442f93f]	2710	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2711	{
[253d0b4]	2712	SemanticError( yylloc, "illegal syntax, expecting ';' at end of previous declaration." );
[55266c7]	2713	$$ = nullptr;
	2714	}
[679e644]	2715	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2716	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2717	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2718	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2719	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2720	{
[dea36ee]	2721	if ( ! $3 ) { // field declarator ?
	2722	$3 = DeclarationNode::newName( nullptr );
	2723	} // if
[679a260]	2724	$3->inLine = true;
[679e644]	2725	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2726	distInl( $3 );
[8f91c9ae]	2727	}
[e307e12]	2728	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2729	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2730	\| typedef_declaration ';' // CFA
	2731	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2732	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2733	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2734	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2735	{ $$ = $2; } // mark all fields in list
[46fa473]	2736	\| cfa_typedef_declaration ';' // CFA
[b9f6791f]	2737	\| static_assert ';' // C11
[4d51835]	2738	;
[b87a5ed]	2739
[679e644]	2740	field_declaring_list_opt:
	2741	// empty
	2742	{ $$ = nullptr; }
[12f1156]	2743	\| field_declarator
	2744	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2745	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2746	;
[51b73452]	2747
[679e644]	2748	field_declarator:
[e07caa2]	2749	bit_subrange_size // C special case, no field name
[4d51835]	2750	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2751	\| variable_declarator bit_subrange_size_opt
[679e644]	2752	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2753	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2754	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2755	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2756	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2757	\| function_type_redeclarator bit_subrange_size_opt
	2758	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2759	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2760	;
	2761
[e07caa2]	2762	field_abstract_list_opt:
	2763	// empty
[dea36ee]	2764	{ $$ = nullptr; }
[e07caa2]	2765	\| field_abstract
	2766	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2767	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2768	;
	2769
[e07caa2]	2770	field_abstract:
[f7e4db27]	2771	// no bit fields
[e07caa2]	2772	variable_abstract_declarator
[679e644]	2773	;
	2774
	2775	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2776	// bit-fields are handled by C declarations
[033ff37]	2777	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2778	{ $$ = $1->addName( $2 ); }
[033ff37]	2779	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2780	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2781	;
	2782
	2783	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2784	// bit-fields are handled by C declarations
[679e644]	2785	cfa_abstract_declarator_tuple
	2786	\| cfa_field_abstract_list ','
[dc3fbe5]	2787	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2788	;
[51b73452]	2789
	2790	bit_subrange_size_opt:
[4d51835]	2791	// empty
[58dd019]	2792	{ $$ = nullptr; }
[4d51835]	2793	\| bit_subrange_size
	2794	;
[51b73452]	2795
	2796	bit_subrange_size:
[c786e1d]	2797	':' assignment_expression
[4d51835]	2798	{ $$ = $2; }
	2799	;
[51b73452]	2800
[7e13b11]	2801	// ************************ ENUMERATION *****************************
[647e2ea]	2802
[9e7236f4]	2803	enum_type:
[30aab55]	2804	// anonymous, no type name
	2805	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2806	{
	2807	if ( $3 == EnumHiding::Hide ) {
[253d0b4]	2808	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[30aab55]	2809	} // if
	2810	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2811	}
[42422fb]	2812	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2813	{
[42422fb]	2814	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[253d0b4]	2815	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2816	}
[42422fb]	2817	if ( $4 == EnumHiding::Hide ) {
[253d0b4]	2818	SemanticError( yylloc, "illegal syntax, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
[42422fb]	2819	} // if
	2820	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2821	}
[30aab55]	2822
[42422fb]	2823	// named type
[30aab55]	2824	\| ENUM attribute_list_opt identifier
	2825	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2826	hide_opt '{' enumerator_list comma_opt '}'
	2827	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2828	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2829	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2830	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2831	{
[42422fb]	2832	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[253d0b4]	2833	SemanticError( yylloc, "illegal syntax, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
[55266c7]	2834	}
[42422fb]	2835	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2836	}
[c7f12a4]	2837	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2838	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2839	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2840	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2841
	2842	// forward declaration
[d0ffed1]	2843	\| enum_type_nobody
	2844	;
	2845
[42422fb]	2846	enumerator_type:
	2847	'(' ')' // pure enumeration
	2848	{ $$ = nullptr; }
	2849	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2850	{ $$ = $2; }
	2851	;
	2852
[c7f12a4]	2853	hide_opt:
	2854	// empty
[7cf8006]	2855	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2856	\| '!'
[7cf8006]	2857	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2858	;
	2859
[d0ffed1]	2860	enum_type_nobody: // enum - {...}
[f9c3100]	2861	ENUM attribute_list_opt identifier
[71a422a]	2862	{
	2863	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2864	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2865	}
[0bd46fd]	2866	\| ENUM attribute_list_opt type_name
[71a422a]	2867	{
[6cef439]	2868	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2869	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2870	}
[4d51835]	2871	;
[51b73452]	2872
	2873	enumerator_list:
[2ca7fc2]	2874	// empty
	2875	{ SemanticError( yylloc, "enumeration must have a minimum of one enumerator, empty enumerator list is meaningless." ); $$ = nullptr; }
	2876	\| visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2877	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2878	\| INLINE type_name
[d9bad51]	2879	{
	2880	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2881	$2->symbolic.name = nullptr;
	2882	delete $2;
	2883	}
[7cf8006]	2884	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2885	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2886	\| enumerator_list ',' INLINE type_name
	2887	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2888	;
[51b73452]	2889
[7cf8006]	2890	visible_hide_opt:
[c7f12a4]	2891	hide_opt
	2892	\| '^'
[7cf8006]	2893	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2894	;
	2895
[51b73452]	2896	enumerator_value_opt:
[4d51835]	2897	// empty
[58dd019]	2898	{ $$ = nullptr; }
[7991c7d]	2899	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2900	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2901	// \| simple_assignment_operator initializer
	2902	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2903	;
[51b73452]	2904
[7e13b11]	2905	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2906
	2907	parameter_list_ellipsis_opt:
	2908	// empty
[db19e1d]	2909	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[647e2ea]	2910	\| ELLIPSIS
	2911	{ $$ = nullptr; }
	2912	\| parameter_list
	2913	\| parameter_list ',' ELLIPSIS
	2914	{ $$ = $1->addVarArgs(); }
	2915	;
	2916
	2917	parameter_list: // abstract + real
	2918	parameter_declaration
	2919	\| abstract_parameter_declaration
	2920	\| parameter_list ',' parameter_declaration
	2921	{ $$ = $1->set_last( $3 ); }
	2922	\| parameter_list ',' abstract_parameter_declaration
	2923	{ $$ = $1->set_last( $3 ); }
	2924	;
	2925
	2926	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2927	// empty
[e048ece]	2928	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2929	\| ELLIPSIS
[58dd019]	2930	{ $$ = nullptr; }
[c0aa336]	2931	\| cfa_parameter_list
[647e2ea]	2932	\| cfa_abstract_parameter_list
	2933	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2934	{ $$ = $1->set_last( $3 ); }
	2935	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2936	{ $$ = $1->addVarArgs(); }
[647e2ea]	2937	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2938	{ $$ = $1->addVarArgs(); }
	2939	;
[b87a5ed]	2940
[c0aa336]	2941	cfa_parameter_list: // CFA
	2942	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2943	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2944	cfa_parameter_declaration
[647e2ea]	2945	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2946	{ $$ = $1->set_last( $3 ); }
	2947	\| cfa_parameter_list ',' cfa_parameter_declaration
	2948	{ $$ = $1->set_last( $3 ); }
	2949	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2950	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2951	;
[b87a5ed]	2952
[c0aa336]	2953	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2954	cfa_abstract_parameter_declaration
[647e2ea]	2955	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2956	{ $$ = $1->set_last( $3 ); }
[4d51835]	2957	;
[51b73452]	2958
[de62360d]	2959	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2960	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2961
[647e2ea]	2962	parameter_declaration:
	2963	// No SUE declaration in parameter list.
	2964	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2965	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2966	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2967	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2968	;
	2969
	2970	abstract_parameter_declaration:
	2971	declaration_specifier_nobody default_initializer_opt
	2972	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2973	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2974	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2975	;
	2976
[c0aa336]	2977	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2978	parameter_declaration
[5a51798]	2979	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2980	{ $$ = $1->addName( $2 ); }
[5a51798]	2981	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2982	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2983	{ $$ = $1->addName( $2 ); }
[5a51798]	2984	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2985	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2986	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2987	;
[b87a5ed]	2988
[c0aa336]	2989	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2990	abstract_parameter_declaration
[c0aa336]	2991	\| cfa_identifier_parameter_declarator_no_tuple
	2992	\| cfa_abstract_tuple
	2993	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2994	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2995	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2996	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2997	;
[51b73452]	2998
[c11e31c]	2999	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	3000	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	3001	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	3002
[b87a5ed]	3003	identifier_list: // K&R-style parameter list => no types
[033ff37]	3004	identifier
[4d51835]	3005	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	3006	\| identifier_list ',' identifier
[dc3fbe5]	3007	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	3008	;
[51b73452]	3009
[84d58c5]	3010	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	3011	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	3012	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	3013	\| type_specifier abstract_declarator
[4d51835]	3014	{ $$ = $2->addType( $1 ); }
	3015	;
[b87a5ed]	3016
[84d58c5]	3017	type: // typeof, assertion
	3018	type_no_function
[c0aa336]	3019	\| cfa_abstract_function // CFA
[4d51835]	3020	;
[51b73452]	3021
	3022	initializer_opt:
[4d51835]	3023	// empty
[58dd019]	3024	{ $$ = nullptr; }
[f9c3100]	3025	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	3026	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	3027	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3028	;
[51b73452]	3029
	3030	initializer:
[de62360d]	3031	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	3032	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	3033	;
[51b73452]	3034
[7fdb94e1]	3035	initializer_list_opt:
[097e2b0]	3036	// empty
[58dd019]	3037	{ $$ = nullptr; }
[097e2b0]	3038	\| initializer
[4d51835]	3039	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	3040	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	3041	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	3042	;
[b87a5ed]	3043
[de62360d]	3044	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	3045	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	3046	//
[b87a5ed]	3047	// int x[10] = { [1] = 3 };
[c11e31c]	3048	//
[de62360d]	3049	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3050	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3051	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3052	// shift/reduce conflicts
[51b73452]	3053
	3054	designation:
[1a8b17a]	3055	designator_list '=' // C99, CFA uses ":" instead of "="
	3056	\| identifier_at ':' // GCC, field name, obsolete since GCC 2.5
[bb7422a]	3057	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3058	;
[51b73452]	3059
[b87a5ed]	3060	designator_list: // C99
[4d51835]	3061	designator
[2871210]	3062	\| designator_list designator
[b93c544]	3063	{ $$ = $1->set_last( $2 ); }
[4d51835]	3064	;
[51b73452]	3065
	3066	designator:
[e16eb460]	3067	'.' identifier_at // C99, field name
[bb7422a]	3068	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[1a8b17a]	3069	\| '[' constant_expression ']' // C99, single array element
[917f67dd]	3070	{ $$ = $2; }
	3071	\| '[' subrange ']' // CFA, multiple array elements
	3072	{ $$ = $2; }
	3073	\| '[' constant_expression ELLIPSIS constant_expression ']' // GCC, multiple array elements
	3074	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $2 ), maybeMoveBuild( $4 ) ) ); }
	3075	\| '.' '[' field_name_list ']' // CFA, tuple field selector
[d1625f8]	3076	{ $$ = $3; }
[4d51835]	3077	;
[51b73452]	3078
[de62360d]	3079	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3080	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3081	//
	3082	// Overloading: function, data, and operator identifiers may be overloaded.
	3083	//
[3ca7ef3]	3084	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3085	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3086	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3087	//
[de62360d]	3088	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3089	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3090	//
	3091	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3092	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3093	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3094	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3095	// on type arguments of polymorphic functions.
[c11e31c]	3096
[b87a5ed]	3097	type_parameter_list: // CFA
[67cf18c]	3098	type_parameter
	3099	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3100	{ $$ = $1->set_last( $3 ); }
[4d51835]	3101	;
[b87a5ed]	3102
[84d58c5]	3103	type_initializer_opt: // CFA
	3104	// empty
	3105	{ $$ = nullptr; }
	3106	\| '=' type
	3107	{ $$ = $2; }
	3108	;
	3109
[b87a5ed]	3110	type_parameter: // CFA
[033ff37]	3111	type_class identifier_or_type_name
[408ab79]	3112	{
[71a422a]	3113	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3114	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3115	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3116	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3117	}
[5a51798]	3118	type_initializer_opt assertion_list_opt
[67cf18c]	3119	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3120	\| identifier_or_type_name new_type_class
[71a422a]	3121	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3122	type_initializer_opt assertion_list_opt
	3123	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3124	\| '[' identifier_or_type_name ']'
[b66d14a]	3125	{
[71a422a]	3126	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3127	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3128	}
[5a51798]	3129	// \| type_specifier identifier_parameter_declarator
[9997fee]	3130	\| assertion_list
[bb7422a]	3131	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3132	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3133	{
	3134	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3135	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3136	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3137	}
[4d51835]	3138	;
[b87a5ed]	3139
[5a51798]	3140	new_type_class: // CFA
	3141	// empty
[bb7422a]	3142	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3143	\| '&'
[bb7422a]	3144	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3145	\| '*'
[7e13b11]	3146	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3147	// \| '(' '*' ')' // Gregor made me do it
	3148	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3149	\| ELLIPSIS
[bb7422a]	3150	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3151	;
	3152
[b87a5ed]	3153	type_class: // CFA
[4040425]	3154	OTYPE
[bb7422a]	3155	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3156	\| DTYPE
[bb7422a]	3157	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3158	\| FTYPE
[bb7422a]	3159	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3160	\| TTYPE
[bb7422a]	3161	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3162	;
[b87a5ed]	3163
	3164	assertion_list_opt: // CFA
[4d51835]	3165	// empty
[58dd019]	3166	{ $$ = nullptr; }
[9997fee]	3167	\| assertion_list
	3168	;
	3169
	3170	assertion_list: // CFA
	3171	assertion
	3172	\| assertion_list assertion
[dc3fbe5]	3173	{ $$ = $1->set_last( $2 ); }
[4d51835]	3174	;
[b87a5ed]	3175
	3176	assertion: // CFA
[033ff37]	3177	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3178	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[206ecae]	3179	\| '\|' '{' trait_declaration_list '}'
	3180	{ $$ = $3; }
[35718a9]	3181	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3182	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3183	;
[b87a5ed]	3184
[84d58c5]	3185	type_list: // CFA
	3186	type
[bb7422a]	3187	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3188	\| assignment_expression
[84d58c5]	3189	\| type_list ',' type
[b93c544]	3190	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3191	\| type_list ',' assignment_expression
[b93c544]	3192	{ $$ = $1->set_last( $3 ); }
[4d51835]	3193	;
[b87a5ed]	3194
	3195	type_declaring_list: // CFA
[4040425]	3196	OTYPE type_declarator
[4d51835]	3197	{ $$ = $2; }
[4040425]	3198	\| storage_class_list OTYPE type_declarator
[4d51835]	3199	{ $$ = $3->addQualifiers( $1 ); }
	3200	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3201	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3202	;
[b87a5ed]	3203
	3204	type_declarator: // CFA
[4d51835]	3205	type_declarator_name assertion_list_opt
	3206	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3207	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3208	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3209	;
[b87a5ed]	3210
	3211	type_declarator_name: // CFA
[033ff37]	3212	identifier_or_type_name
[4d51835]	3213	{
[71a422a]	3214	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3215	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3216	}
[033ff37]	3217	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3218	{
[71a422a]	3219	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3220	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3221	}
	3222	;
[b87a5ed]	3223
[4040425]	3224	trait_specifier: // CFA
[033ff37]	3225	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3226	{
[3d937e2]	3227	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3228	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3229	}
	3230	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3231	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[206ecae]	3232	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' trait_declaration_list '}'
[8a97248]	3233	{
[3d937e2]	3234	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[206ecae]	3235	$$ = DeclarationNode::newTrait( $2, $4, $7 );
[8a97248]	3236	}
[206ecae]	3237	\| forall TRAIT identifier_or_type_name '{' trait_declaration_list '}' // alternate
	3238	{ $$ = DeclarationNode::newTrait( $3, $1, $5 ); }
[4d51835]	3239	;
[b87a5ed]	3240
[84d58c5]	3241	trait_declaration_list: // CFA
[4040425]	3242	trait_declaration
[206ecae]	3243	\| trait_declaration_list trait_declaration
	3244	{ $$ = $1->set_last( $2 ); }
[4d51835]	3245	;
[b87a5ed]	3246
[84d58c5]	3247	trait_declaration: // CFA
[13e8427]	3248	cfa_trait_declaring_list ';'
	3249	\| trait_declaring_list ';'
[4d51835]	3250	;
[b87a5ed]	3251
[c0aa336]	3252	cfa_trait_declaring_list: // CFA
	3253	cfa_variable_specifier
	3254	\| cfa_function_specifier
[206ecae]	3255	\| cfa_trait_declaring_list ',' identifier_or_type_name
	3256	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[4d51835]	3257	;
[b87a5ed]	3258
[4040425]	3259	trait_declaring_list: // CFA
[4941716]	3260	// Cannot declare an aggregate or enumeration in a trait.
	3261	type_specifier_nobody declarator
[7fdb94e1]	3262	{ $$ = $2->addType( $1 ); }
[206ecae]	3263	\| trait_declaring_list ',' declarator
	3264	{ $$ = $1->set_last( $1->cloneBaseType( $3 ) ); }
[4941716]	3265	\| error
	3266	{ SemanticError( yylloc, "Possible cause is declaring an aggregate or enumeration type in a trait." ); $$ = nullptr; }
[4d51835]	3267	;
[51b73452]	3268
[e1d66c84]	3269	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3270
	3271	translation_unit:
[3d56d15b]	3272	// empty, input file
[4d51835]	3273	\| external_definition_list
[12f1156]	3274	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3275	;
[51b73452]	3276
	3277	external_definition_list:
[35718a9]	3278	push external_definition pop
	3279	{ $$ = $2; }
[fc20514]	3280	\| external_definition_list push external_definition pop
[dc3fbe5]	3281	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3282	;
[51b73452]	3283
	3284	external_definition_list_opt:
[4d51835]	3285	// empty
[58dd019]	3286	{ $$ = nullptr; }
[3d56d15b]	3287	\| external_definition_list
	3288	;
	3289
	3290	up:
[fc20514]	3291	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3292	;
	3293
	3294	down:
	3295	{ typedefTable.down(); }
[4d51835]	3296	;
[51b73452]	3297
	3298	external_definition:
[2d019af]	3299	DIRECTIVE
[bb7422a]	3300	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3301	\| declaration
[1a73dbb]	3302	{
	3303	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3304	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3305	// disallowed at the moment.
[4eb3a7c5]	3306	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3307	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3308	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3309	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3310	}
	3311	}
	3312	}
[996c8ed]	3313	\| IDENTIFIER IDENTIFIER
	3314	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3315	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3316	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3317	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3318	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3319	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3320	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3321	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3322	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3323	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3324	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3325	\| external_function_definition
[ecae5860]	3326	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3327	{
	3328	distExt( $2 ); // mark all fields in list
	3329	$$ = $2;
	3330	}
[e994912]	3331	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3332	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3333	\| EXTERN STRINGliteral
	3334	{
	3335	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3336	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3337	}
[ae2f2ae]	3338	up external_definition down
[aac37fa]	3339	{
	3340	linkage = linkageStack.top();
	3341	linkageStack.pop();
	3342	$$ = $5;
	3343	}
[c0aa336]	3344	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3345	{
[3b8e52c]	3346	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3347	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3348	}
[3d56d15b]	3349	'{' up external_definition_list_opt down '}'
[4d51835]	3350	{
	3351	linkage = linkageStack.top();
	3352	linkageStack.pop();
[3d56d15b]	3353	$$ = $6;
[8e9cbb2]	3354	}
[7e13b11]	3355	// global distribution
[9997fee]	3356	\| type_qualifier_list
	3357	{
[55266c7]	3358	if ( $1->type->qualifiers.any() ) {
[253d0b4]	3359	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3360	}
[fc20514]	3361	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3362	}
	3363	'{' up external_definition_list_opt down '}' // CFA, namespace
	3364	{
[4c3ee8d]	3365	distQual( $5, $1 );
[9fd9d015]	3366	forall = false;
[3d56d15b]	3367	$$ = $5;
[9997fee]	3368	}
	3369	\| declaration_qualifier_list
	3370	{
[55266c7]	3371	if ( $1->type && $1->type->qualifiers.any() ) {
[253d0b4]	3372	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3373	}
[fc20514]	3374	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3375	}
	3376	'{' up external_definition_list_opt down '}' // CFA, namespace
	3377	{
[4c3ee8d]	3378	distQual( $5, $1 );
[9fd9d015]	3379	forall = false;
[3d56d15b]	3380	$$ = $5;
[9997fee]	3381	}
	3382	\| declaration_qualifier_list type_qualifier_list
	3383	{
[55266c7]	3384	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
[253d0b4]	3385	SemanticError( yylloc, "illegal syntax, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
[55266c7]	3386	}
[b2ddaf3]	3387	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3388	}
[3d56d15b]	3389	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3390	{
[284da8c]	3391	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3392	forall = false;
[3d56d15b]	3393	$$ = $6;
[9997fee]	3394	}
[b9f6791f]	3395	\| ';' // empty declaration
	3396	{ $$ = nullptr; }
[4d51835]	3397	;
	3398
	3399	external_function_definition:
	3400	function_definition
[de62360d]	3401	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3402	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3403	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3404	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3405	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3406	\| function_declarator compound_statement
[c0a33d2]	3407	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3408	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3409	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3410	;
[51b73452]	3411
[8b47e50]	3412	with_clause_opt:
	3413	// empty
[9997fee]	3414	{ $$ = nullptr; forall = false; }
[e78966e]	3415	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3416	{
	3417	$$ = $3; forall = false;
	3418	if ( $5 ) {
[253d0b4]	3419	SemanticError( yylloc, "illegal syntax, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3420	$$ = nullptr;
	3421	} // if
	3422	}
[8b47e50]	3423	;
	3424
[51b73452]	3425	function_definition:
[8b47e50]	3426	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3427	{
[481115f]	3428	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3429	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3430	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3431	$$ = $1;
[4d51835]	3432	}
[8b47e50]	3433	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3434	{
[c38ae92]	3435	rebindForall( $1, $2 );
[7fdb94e1]	3436	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3437	}
[1f771fc]	3438	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3439	{
	3440	rebindForall( $1, $2 );
[5fcba14]	3441	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3442	}
[a16a7ec]	3443	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3444	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3445	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3446	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3447	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3448	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3449	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3450	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3451	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3452
	3453	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3454	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3455	{
[c38ae92]	3456	rebindForall( $1, $2 );
[5fcba14]	3457	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3458	}
[a16a7ec]	3459	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3460	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3461	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3462	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3463	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3464	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3465	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3466	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3467	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3468	;
[51b73452]	3469
	3470	declarator:
[4d51835]	3471	variable_declarator
[c6b1105]	3472	\| variable_type_redeclarator
[4d51835]	3473	\| function_declarator
[1f771fc]	3474	\| function_type_redeclarator
[4d51835]	3475	;
[51b73452]	3476
	3477	subrange:
[4d51835]	3478	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3479	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3480	;
[b87a5ed]	3481
[7e13b11]	3482	// ************************** ASM ***************************
	3483
[b87a5ed]	3484	asm_name_opt: // GCC
[4d51835]	3485	// empty
[58dd019]	3486	{ $$ = nullptr; }
	3487	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3488	{
	3489	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3490	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3491	$$ = name->addQualifiers( $5 );
	3492	}
[4d51835]	3493	;
[b87a5ed]	3494
[7e13b11]	3495	// ************************** ATTRIBUTE ***************************
	3496
[b87a5ed]	3497	attribute_list_opt: // GCC
[4d51835]	3498	// empty
[58dd019]	3499	{ $$ = nullptr; }
[4d51835]	3500	\| attribute_list
	3501	;
[b87a5ed]	3502
	3503	attribute_list: // GCC
[4d51835]	3504	attribute
	3505	\| attribute_list attribute
[1db21619]	3506	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3507	;
[b87a5ed]	3508
	3509	attribute: // GCC
[44a81853]	3510	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3511	{ $$ = $4; }
[647e2ea]	3512	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3513	{ $$ = $3; }
	3514	\| ATTR '(' attribute_name_list ')' // CFA
	3515	{ $$ = $3; }
[1a8b17a]	3516	\| C23_ATTRIBUTE
	3517	{ $$ = DeclarationNode::newAttribute( $1 ); }
[4d51835]	3518	;
[b87a5ed]	3519
[44a81853]	3520	attribute_name_list: // GCC
	3521	attribute_name
	3522	\| attribute_name_list ',' attribute_name
[c0aa336]	3523	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3524	;
[b87a5ed]	3525
[44a81853]	3526	attribute_name: // GCC
[4d51835]	3527	// empty
[44a81853]	3528	{ $$ = nullptr; }
	3529	\| attr_name
	3530	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3531	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3532	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3533	;
[b87a5ed]	3534
[44a81853]	3535	attr_name: // GCC
[12f1156]	3536	identifier_or_type_name
[114014c]	3537	\| FALLTHROUGH
	3538	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3539	\| CONST
[9ff56e7]	3540	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3541	;
[51b73452]	3542
[c11e31c]	3543	// ============================================================================
[de62360d]	3544	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3545	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3546	// in:
[c11e31c]	3547	//
[b87a5ed]	3548	// int (*f())[10] { ... };
	3549	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3550	//
[de62360d]	3551	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3552	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3553	// ============================================================================
	3554
	3555	// ----------------------------------------------------------------------------
[de62360d]	3556	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3557	// to define a variable or function prototype, e.g.:
[c11e31c]	3558	//
[b87a5ed]	3559	// valid declaration invalid definition
	3560	// ----------------- ------------------
[4d51835]	3561	// int f; int f {}
	3562	// int f; int f {}
[b87a5ed]	3563	// int f[10]; int f[10] {}
[4d51835]	3564	// int (f)(int); int (f)(int) {}
[c11e31c]	3565	//
[de62360d]	3566	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3567	// variable_declarator and function_declarator.
[c11e31c]	3568	// ----------------------------------------------------------------------------
	3569
[de62360d]	3570	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3571	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3572
[5e25953]	3573	paren_identifier:
[e16eb460]	3574	identifier_at
[5e25953]	3575	{ $$ = DeclarationNode::newName( $1 ); }
[c1b0b8f]	3576	\| '?' identifier
[daa4cc1]	3577	// { SemanticError( yylloc, "keyword parameter is currently unimplemented." ); $$ = nullptr; }
	3578	{ $$ = DeclarationNode::newName( $2 ); }
[5e25953]	3579	\| '(' paren_identifier ')' // redundant parenthesis
	3580	{ $$ = $2; }
	3581	;
	3582
[51b73452]	3583	variable_declarator:
[4d51835]	3584	paren_identifier attribute_list_opt
[1db21619]	3585	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3586	\| variable_ptr
	3587	\| variable_array attribute_list_opt
[1db21619]	3588	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3589	\| variable_function attribute_list_opt
[1db21619]	3590	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3591	;
[51b73452]	3592
	3593	variable_ptr:
[dd51906]	3594	ptrref_operator variable_declarator
[a5f9444]	3595	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3596	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3597	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3598	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3599	{ $$ = $2->addQualifiers( $4 ); }
	3600	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3601	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3602	;
[51b73452]	3603
	3604	variable_array:
[4d51835]	3605	paren_identifier array_dimension
	3606	{ $$ = $1->addArray( $2 ); }
	3607	\| '(' variable_ptr ')' array_dimension
	3608	{ $$ = $2->addArray( $4 ); }
[5e25953]	3609	\| '(' attribute_list variable_ptr ')' array_dimension
	3610	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3611	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3612	{ $$ = $2->addArray( $4 ); }
[5e25953]	3613	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3614	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3615	\| '(' variable_array ')' // redundant parenthesis
	3616	{ $$ = $2; }
[5e25953]	3617	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3618	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3619	;
[51b73452]	3620
	3621	variable_function:
[647e2ea]	3622	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3623	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3624	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3625	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3626	\| '(' variable_function ')' // redundant parenthesis
	3627	{ $$ = $2; }
[5e25953]	3628	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3629	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3630	;
[51b73452]	3631
[c6b1105]	3632	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3633	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3634	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3635
	3636	function_declarator:
[4d51835]	3637	function_no_ptr attribute_list_opt
[1db21619]	3638	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3639	\| function_ptr
	3640	\| function_array attribute_list_opt
[1db21619]	3641	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3642	;
[51b73452]	3643
	3644	function_no_ptr:
[647e2ea]	3645	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3646	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3647	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3648	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3649	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3650	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3651	\| '(' function_no_ptr ')' // redundant parenthesis
	3652	{ $$ = $2; }
[5e25953]	3653	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3654	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3655	;
[51b73452]	3656
	3657	function_ptr:
[dd51906]	3658	ptrref_operator function_declarator
[a5f9444]	3659	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3660	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3661	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3662	\| '(' function_ptr ')' attribute_list_opt
	3663	{ $$ = $2->addQualifiers( $4 ); }
	3664	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3665	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3666	;
[51b73452]	3667
	3668	function_array:
[4d51835]	3669	'(' function_ptr ')' array_dimension
	3670	{ $$ = $2->addArray( $4 ); }
[5e25953]	3671	\| '(' attribute_list function_ptr ')' array_dimension
	3672	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3673	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3674	{ $$ = $2->addArray( $4 ); }
[5e25953]	3675	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3676	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3677	\| '(' function_array ')' // redundant parenthesis
	3678	{ $$ = $2; }
[5e25953]	3679	\| '(' attribute_list function_array ')' // redundant parenthesis
	3680	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3681	;
[51b73452]	3682
[c0aa336]	3683	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3684	//
	3685	// f( a, b, c ) int a, *b, c[]; {}
	3686	//
	3687	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3688	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3689
[c0aa336]	3690	KR_function_declarator:
	3691	KR_function_no_ptr
	3692	\| KR_function_ptr
	3693	\| KR_function_array
[4d51835]	3694	;
[51b73452]	3695
[c0aa336]	3696	KR_function_no_ptr:
[4d51835]	3697	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3698	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3699	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3700	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3701	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3702	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3703	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3704	{ $$ = $2; }
[5e25953]	3705	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3706	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3707	;
[51b73452]	3708
[c0aa336]	3709	KR_function_ptr:
	3710	ptrref_operator KR_function_declarator
[a5f9444]	3711	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3712	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3713	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3714	\| '(' KR_function_ptr ')'
[4d51835]	3715	{ $$ = $2; }
[5e25953]	3716	\| '(' attribute_list KR_function_ptr ')'
	3717	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3718	;
[51b73452]	3719
[c0aa336]	3720	KR_function_array:
	3721	'(' KR_function_ptr ')' array_dimension
[4d51835]	3722	{ $$ = $2->addArray( $4 ); }
[5e25953]	3723	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3724	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3725	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3726	{ $$ = $2->addArray( $4 ); }
[5e25953]	3727	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3728	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3729	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3730	{ $$ = $2; }
[5e25953]	3731	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3732	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3733	;
[51b73452]	3734
[1f771fc]	3735	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3736	//
[b87a5ed]	3737	// typedef int foo;
	3738	// {
	3739	// int foo; // redefine typedef name in new scope
	3740	// }
[51b73452]	3741
[2871210]	3742	paren_type:
[f9c3100]	3743	typedef_name
[c4f68dc]	3744	{
[f9c3100]	3745	// hide type name in enclosing scope by variable name
[71a422a]	3746	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3747	}
[2871210]	3748	\| '(' paren_type ')'
[4d51835]	3749	{ $$ = $2; }
	3750	;
[51b73452]	3751
[5e25953]	3752	variable_type_redeclarator:
	3753	paren_type attribute_list_opt
	3754	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3755	\| variable_type_ptr
	3756	\| variable_type_array attribute_list_opt
[5e25953]	3757	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3758	\| variable_type_function attribute_list_opt
[5e25953]	3759	{ $$ = $1->addQualifiers( $2 ); }
	3760	;
	3761
[1f771fc]	3762	variable_type_ptr:
[c6b1105]	3763	ptrref_operator variable_type_redeclarator
[a5f9444]	3764	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3765	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3766	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3767	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3768	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3769	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3770	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3771	;
[51b73452]	3772
[1f771fc]	3773	variable_type_array:
[2871210]	3774	paren_type array_dimension
[4d51835]	3775	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3776	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3777	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3778	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3779	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3780	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3781	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3782	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3783	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3784	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3785	{ $$ = $2; }
[1f771fc]	3786	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3787	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3788	;
[51b73452]	3789
[1f771fc]	3790	variable_type_function:
[647e2ea]	3791	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3792	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3793	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3794	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3795	\| '(' variable_type_function ')' // redundant parenthesis
	3796	{ $$ = $2; }
	3797	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3798	{ $$ = $3->addQualifiers( $2 ); }
	3799	;
	3800
	3801	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3802	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3803	// arrays and functions.
	3804
	3805	function_type_redeclarator:
	3806	function_type_no_ptr attribute_list_opt
	3807	{ $$ = $1->addQualifiers( $2 ); }
	3808	\| function_type_ptr
	3809	\| function_type_array attribute_list_opt
	3810	{ $$ = $1->addQualifiers( $2 ); }
	3811	;
	3812
	3813	function_type_no_ptr:
[647e2ea]	3814	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3815	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3816	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3817	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3818	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3819	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3820	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3821	{ $$ = $2; }
[1f771fc]	3822	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3823	{ $$ = $3->addQualifiers( $2 ); }
	3824	;
	3825
	3826	function_type_ptr:
	3827	ptrref_operator function_type_redeclarator
	3828	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3829	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3830	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3831	\| '(' function_type_ptr ')' attribute_list_opt
	3832	{ $$ = $2->addQualifiers( $4 ); }
	3833	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3834	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3835	;
	3836
	3837	function_type_array:
	3838	'(' function_type_ptr ')' array_dimension
	3839	{ $$ = $2->addArray( $4 ); }
	3840	\| '(' attribute_list function_type_ptr ')' array_dimension
	3841	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3842	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3843	{ $$ = $2->addArray( $4 ); }
	3844	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3845	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3846	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3847	{ $$ = $2; }
[1f771fc]	3848	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3849	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3850	;
[51b73452]	3851
[c0aa336]	3852	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3853	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3854	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3855	// pointers to arrays and functions.
[51b73452]	3856
	3857	identifier_parameter_declarator:
[4d51835]	3858	paren_identifier attribute_list_opt
[1db21619]	3859	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3860	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3861	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3862	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3863	\| identifier_parameter_ptr
	3864	\| identifier_parameter_array attribute_list_opt
[1db21619]	3865	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3866	\| identifier_parameter_function attribute_list_opt
[1db21619]	3867	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3868	;
[51b73452]	3869
	3870	identifier_parameter_ptr:
[dd51906]	3871	ptrref_operator identifier_parameter_declarator
[a5f9444]	3872	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3873	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3874	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3875	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3876	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3877	;
[51b73452]	3878
	3879	identifier_parameter_array:
[4d51835]	3880	paren_identifier array_parameter_dimension
	3881	{ $$ = $1->addArray( $2 ); }
	3882	\| '(' identifier_parameter_ptr ')' array_dimension
	3883	{ $$ = $2->addArray( $4 ); }
	3884	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3885	{ $$ = $2->addArray( $4 ); }
	3886	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3887	{ $$ = $2; }
	3888	;
[51b73452]	3889
	3890	identifier_parameter_function:
[647e2ea]	3891	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3892	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3893	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3894	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3895	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3896	{ $$ = $2; }
	3897	;
[b87a5ed]	3898
[de62360d]	3899	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3900	// e.g.:
[c11e31c]	3901	//
[b87a5ed]	3902	// typedef int foo;
[114014c]	3903	// forall( otype T ) struct foo;
[b87a5ed]	3904	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3905	//
[c0aa336]	3906	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3907
[2871210]	3908	type_parameter_redeclarator:
[f9c3100]	3909	typedef_name attribute_list_opt
[1db21619]	3910	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3911	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3912	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3913	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3914	\| type_parameter_ptr
	3915	\| type_parameter_array attribute_list_opt
[1db21619]	3916	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3917	\| type_parameter_function attribute_list_opt
[1db21619]	3918	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3919	;
[51b73452]	3920
[f9c3100]	3921	typedef_name:
[4d51835]	3922	TYPEDEFname
[7fdb94e1]	3923	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3924	\| TYPEGENname
[7fdb94e1]	3925	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3926	;
[51b73452]	3927
[2871210]	3928	type_parameter_ptr:
[dd51906]	3929	ptrref_operator type_parameter_redeclarator
[a5f9444]	3930	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3931	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3932	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3933	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3934	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3935	;
[51b73452]	3936
[2871210]	3937	type_parameter_array:
[f9c3100]	3938	typedef_name array_parameter_dimension
[4d51835]	3939	{ $$ = $1->addArray( $2 ); }
[2871210]	3940	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3941	{ $$ = $2->addArray( $4 ); }
	3942	;
[51b73452]	3943
[2871210]	3944	type_parameter_function:
[7e13b11]	3945	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3946	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3947	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3948	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3949	;
[b87a5ed]	3950
[de62360d]	3951	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3952	// which the type applies, e.g.:
[c11e31c]	3953	//
[b87a5ed]	3954	// sizeof( int );
[c0aa336]	3955	// sizeof( int * );
[b87a5ed]	3956	// sizeof( int [10] );
[c0aa336]	3957	// sizeof( int (*)() );
	3958	// sizeof( int () );
[c11e31c]	3959	//
[de62360d]	3960	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3961	// and functions versus pointers to arrays and functions.
[51b73452]	3962
	3963	abstract_declarator:
[4d51835]	3964	abstract_ptr
	3965	\| abstract_array attribute_list_opt
[1db21619]	3966	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3967	\| abstract_function attribute_list_opt
[1db21619]	3968	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3969	;
[51b73452]	3970
	3971	abstract_ptr:
[dd51906]	3972	ptrref_operator
[a5f9444]	3973	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3974	\| ptrref_operator type_qualifier_list
[ce8c12f]	3975	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3976	\| ptrref_operator abstract_declarator
[a5f9444]	3977	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3978	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3979	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3980	\| '(' abstract_ptr ')' attribute_list_opt
	3981	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3982	;
[51b73452]	3983
	3984	abstract_array:
[4d51835]	3985	array_dimension
	3986	\| '(' abstract_ptr ')' array_dimension
	3987	{ $$ = $2->addArray( $4 ); }
	3988	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3989	{ $$ = $2->addArray( $4 ); }
	3990	\| '(' abstract_array ')' // redundant parenthesis
	3991	{ $$ = $2; }
	3992	;
[51b73452]	3993
	3994	abstract_function:
[7e13b11]	3995	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3996	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3997	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3998	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3999	\| '(' abstract_function ')' // redundant parenthesis
	4000	{ $$ = $2; }
	4001	;
[51b73452]	4002
	4003	array_dimension:
[4d51835]	4004	// Only the first dimension can be empty.
[2871210]	4005	'[' ']'
[a5f9444]	4006	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	4007	\| '[' ']' multi_array_dimension
[a5f9444]	4008	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	4009	// Cannot use constant_expression because of tuples => semantic check
[917f67dd]	4010	\| '[' assignment_expression ',' comma_expression ']' // CFA
	4011	{ $$ = DeclarationNode::newArray( $2, nullptr, false )->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[6a99803]	4012	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	4013
	4014	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	4015	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	4016
[917f67dd]	4017	\| '[' array_type_list ']' // CFA
	4018	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
[4d51835]	4019	\| multi_array_dimension
	4020	;
[51b73452]	4021
[647e2ea]	4022	// array_dimension_list:
	4023	// assignment_expression
	4024	// \| array_dimension_list ',' assignment_expression
	4025	// ;
	4026
[d41735a]	4027	array_type_list:
	4028	basic_type_name
[bb7422a]	4029	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4030	\| type_name
[bb7422a]	4031	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	4032	\| assignment_expression upupeq assignment_expression
	4033	\| array_type_list ',' basic_type_name
[b93c544]	4034	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	4035	\| array_type_list ',' type_name
[b93c544]	4036	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	4037	\| array_type_list ',' assignment_expression upupeq assignment_expression
	4038	;
	4039
	4040	upupeq:
	4041	'~'
	4042	{ $$ = OperKinds::LThan; }
	4043	\| ErangeUpEq
	4044	{ $$ = OperKinds::LEThan; }
[9fd9d015]	4045	;
[d41735a]	4046
[51b73452]	4047	multi_array_dimension:
[917f67dd]	4048	'[' assignment_expression ']'
	4049	{ $$ = DeclarationNode::newArray( $2, nullptr, false ); }
	4050	\| '[' '*' ']' // C99
[4d51835]	4051	{ $$ = DeclarationNode::newVarArray( 0 ); }
[917f67dd]	4052	\| multi_array_dimension '[' assignment_expression ']'
	4053	{ $$ = $1->addArray( DeclarationNode::newArray( $3, nullptr, false ) ); }
	4054	\| multi_array_dimension '[' '*' ']' // C99
[4d51835]	4055	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	4056	;
[51b73452]	4057
[c11e31c]	4058	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4059	// identifier to which the type applies, e.g.:
	4060	//
[c0aa336]	4061	// int f( int ); // not handled here
	4062	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4063	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4064	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4065	//
[de62360d]	4066	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[f678c53b]	4067	// and functions versus pointers to arrays and functions. In addition, the pattern handles the special meaning of
	4068	// parenthesis around a typedef name:
[c0aa336]	4069	//
	4070	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4071	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4072	// not as redundant parentheses around the identifier."
	4073	//
	4074	// For example:
	4075	//
	4076	// typedef float T;
	4077	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4078	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4079	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4080	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4081	//
	4082	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4083	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4084	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4085	// functions.
[51b73452]	4086
[59c7e3e]	4087	abstract_parameter_declarator_opt:
	4088	// empty
	4089	{ $$ = nullptr; }
	4090	\| abstract_parameter_declarator
	4091	;
	4092
[51b73452]	4093	abstract_parameter_declarator:
[4d51835]	4094	abstract_parameter_ptr
[b6b3c42]	4095	\| '&' MUTEX attribute_list_opt
[446740a]	4096	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4097	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4098	\| abstract_parameter_array attribute_list_opt
[1db21619]	4099	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4100	\| abstract_parameter_function attribute_list_opt
[1db21619]	4101	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4102	;
[51b73452]	4103
	4104	abstract_parameter_ptr:
[dd51906]	4105	ptrref_operator
[ce8c12f]	4106	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4107	\| ptrref_operator type_qualifier_list
[ce8c12f]	4108	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4109	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4110	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4111	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4112	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4113	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4114	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4115	;
[51b73452]	4116
	4117	abstract_parameter_array:
[4d51835]	4118	array_parameter_dimension
	4119	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4120	{ $$ = $2->addArray( $4 ); }
	4121	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4122	{ $$ = $2->addArray( $4 ); }
	4123	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4124	{ $$ = $2; }
	4125	;
[51b73452]	4126
	4127	abstract_parameter_function:
[7e13b11]	4128	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4129	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4130	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4131	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4132	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4133	{ $$ = $2; }
	4134	;
[51b73452]	4135
	4136	array_parameter_dimension:
[4d51835]	4137	// Only the first dimension can be empty or have qualifiers.
	4138	array_parameter_1st_dimension
	4139	\| array_parameter_1st_dimension multi_array_dimension
	4140	{ $$ = $1->addArray( $2 ); }
	4141	\| multi_array_dimension
	4142	;
[51b73452]	4143
[c11e31c]	4144	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4145	//
[de62360d]	4146	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4147	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4148
	4149	array_parameter_1st_dimension:
[2871210]	4150	'[' ']'
[a5f9444]	4151	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4152	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4153	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4154	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4155	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4156	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4157	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4158	\| '[' push type_qualifier_list assignment_expression pop ']'
	4159	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4160	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4161	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4162	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4163	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4164	;
[b87a5ed]	4165
[c0aa336]	4166	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4167	//
[71a422a]	4168	// struct S {
	4169	// int;
	4170	// int *;
	4171	// int [10];
	4172	// int (*)();
	4173	// };
[51b73452]	4174
	4175	variable_abstract_declarator:
[4d51835]	4176	variable_abstract_ptr
	4177	\| variable_abstract_array attribute_list_opt
[1db21619]	4178	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4179	\| variable_abstract_function attribute_list_opt
[1db21619]	4180	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4181	;
[51b73452]	4182
	4183	variable_abstract_ptr:
[dd51906]	4184	ptrref_operator
[a5f9444]	4185	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4186	\| ptrref_operator type_qualifier_list
[ce8c12f]	4187	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4188	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4189	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4190	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4191	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4192	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4193	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4194	;
[51b73452]	4195
	4196	variable_abstract_array:
[4d51835]	4197	array_dimension
	4198	\| '(' variable_abstract_ptr ')' array_dimension
	4199	{ $$ = $2->addArray( $4 ); }
	4200	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4201	{ $$ = $2->addArray( $4 ); }
	4202	\| '(' variable_abstract_array ')' // redundant parenthesis
	4203	{ $$ = $2; }
	4204	;
[51b73452]	4205
	4206	variable_abstract_function:
[647e2ea]	4207	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4208	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4209	\| '(' variable_abstract_function ')' // redundant parenthesis
	4210	{ $$ = $2; }
	4211	;
[b87a5ed]	4212
[de62360d]	4213	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4214	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4215
[c0aa336]	4216	cfa_identifier_parameter_declarator_tuple: // CFA
	4217	cfa_identifier_parameter_declarator_no_tuple
	4218	\| cfa_abstract_tuple
	4219	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4220	{ $$ = $2->addQualifiers( $1 ); }
	4221	;
[b87a5ed]	4222
[c0aa336]	4223	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4224	cfa_identifier_parameter_ptr
	4225	\| cfa_identifier_parameter_array
[dd54139]	4226	\| type_qualifier_list cfa_identifier_parameter_array
	4227	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	4228	;
[b87a5ed]	4229
[c0aa336]	4230	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4231	// No SUE declaration in parameter list.
	4232	ptrref_operator type_specifier_nobody
[a5f9444]	4233	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4234	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4235	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4236	\| ptrref_operator cfa_abstract_function
[a5f9444]	4237	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4238	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4239	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4240	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4241	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4242	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4243	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4244	;
[b87a5ed]	4245
[c0aa336]	4246	cfa_identifier_parameter_array: // CFA
[de62360d]	4247	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4248	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4249	'[' ']' type_specifier_nobody
[a5f9444]	4250	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[dd54139]	4251	\| '[' ']' cfa_abstract_tuple
	4252	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4253	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4254	{ $$ = $2->addNewArray( $1 ); }
[dd54139]	4255	\| cfa_array_parameter_1st_dimension cfa_abstract_tuple
	4256	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4257	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4258	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[dd54139]	4259	\| '[' ']' multi_array_dimension cfa_abstract_tuple
	4260	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4261	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4262	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[dd54139]	4263	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_abstract_tuple
	4264	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4265	\| multi_array_dimension type_specifier_nobody
[4d51835]	4266	{ $$ = $2->addNewArray( $1 ); }
[dd54139]	4267	\| multi_array_dimension cfa_abstract_tuple
	4268	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4269
[c0aa336]	4270	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4271	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4272	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4273	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4274	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4275	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4276	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4277	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4278	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4279	{ $$ = $2->addNewArray( $1 ); }
	4280	;
[51b73452]	4281
[c0aa336]	4282	cfa_array_parameter_1st_dimension:
[917f67dd]	4283	'[' type_qualifier_list '*' ']' // remaining C99
	4284	{ $$ = DeclarationNode::newVarArray( $2 ); }
	4285	\| '[' type_qualifier_list assignment_expression ']'
	4286	{ $$ = DeclarationNode::newArray( $3, $2, false ); }
	4287	\| '[' declaration_qualifier_list assignment_expression ']'
[4d51835]	4288	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4289	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4290	// appear in this context.
[917f67dd]	4291	{ $$ = DeclarationNode::newArray( $3, $2, true ); }
	4292	\| '[' declaration_qualifier_list type_qualifier_list assignment_expression ']'
	4293	{ $$ = DeclarationNode::newArray( $4, $3->addQualifiers( $2 ), true ); }
[4d51835]	4294	;
[b87a5ed]	4295
[de62360d]	4296	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4297	// identifier to which the type applies, e.g.:
[c11e31c]	4298	//
[b87a5ed]	4299	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4300	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4301	//
	4302	// These rules need LR(3):
	4303	//
[c0aa336]	4304	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4305	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4306	//
	4307	// since a function return type can be syntactically identical to a tuple type:
	4308	//
[b87a5ed]	4309	// [int, int] t;
	4310	// [int, int] f( int );
[c11e31c]	4311	//
[2871210]	4312	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4313	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4314	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4315	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4316
[c0aa336]	4317	cfa_abstract_declarator_tuple: // CFA
	4318	cfa_abstract_tuple
	4319	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4320	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4321	\| cfa_abstract_declarator_no_tuple
[4d51835]	4322	;
[b87a5ed]	4323
[c0aa336]	4324	cfa_abstract_declarator_no_tuple: // CFA
	4325	cfa_abstract_ptr
	4326	\| cfa_abstract_array
[4d51835]	4327	;
[b87a5ed]	4328
[c0aa336]	4329	cfa_abstract_ptr: // CFA
[dd51906]	4330	ptrref_operator type_specifier
[a5f9444]	4331	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4332	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4333	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4334	\| ptrref_operator cfa_abstract_function
[a5f9444]	4335	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4336	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4337	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4338	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4339	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4340	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4341	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4342	;
[b87a5ed]	4343
[c0aa336]	4344	cfa_abstract_array: // CFA
[de62360d]	4345	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4346	// empty (void) function return type.
[2871210]	4347	'[' ']' type_specifier
[2298f728]	4348	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4349	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4350	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4351	\| multi_array_dimension type_specifier
	4352	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4353	\| '[' ']' cfa_abstract_ptr
[2298f728]	4354	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4355	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4356	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4357	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4358	{ $$ = $2->addNewArray( $1 ); }
	4359	;
[b87a5ed]	4360
[c0aa336]	4361	cfa_abstract_tuple: // CFA
[917f67dd]	4362	'[' cfa_abstract_parameter_list ']'
	4363	{ $$ = DeclarationNode::newTuple( $2 ); }
	4364	\| '[' type_specifier_nobody ELLIPSIS ']'
[13e8427]	4365	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[917f67dd]	4366	\| '[' type_specifier_nobody ELLIPSIS constant_expression ']'
[13e8427]	4367	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4368	;
[b87a5ed]	4369
[c0aa336]	4370	cfa_abstract_function: // CFA
[647e2ea]	4371	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4372	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4373	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4374	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4375	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4376	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4377	;
[b87a5ed]	4378
[de62360d]	4379	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4380	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4381	//
[de62360d]	4382	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4383	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4384	//
	4385	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4386	// prototype-format parameter type declarators) is an obsolescent feature."
	4387	//
[de62360d]	4388	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4389	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4390
[e1d66c84]	4391	// ********************** MISCELLANEOUS ******************************
[51b73452]	4392
[b87a5ed]	4393	comma_opt: // redundant comma
[4d51835]	4394	// empty
	4395	\| ','
	4396	;
[51b73452]	4397
[5a51798]	4398	default_initializer_opt:
[4d51835]	4399	// empty
[58dd019]	4400	{ $$ = nullptr; }
[4d51835]	4401	\| '=' assignment_expression
	4402	{ $$ = $2; }
	4403	;
[51b73452]	4404
	4405	%%
[a1c9ddd]	4406
[c11e31c]	4407	// ----end of grammar----
[51b73452]	4408
[c11e31c]	4409	// Local Variables: //
[b87a5ed]	4410	// mode: c++ //
[de62360d]	4411	// tab-width: 4 //
[7e13b11]	4412	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4413	// End: //

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