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parser.yy@ b166b1c

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Last change on this file since b166b1c was 12f1156, checked in by Peter A. Buhr <pabuhr@…>, 20 months ago
simplify grammar in a few places
Property mode set to `100644`
File size: 176.5 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
[12f1156]	12	// Last Modified On : Tue Jun 11 21:32:15 2024
	13	// Update Count : 6641
[974906e2]	14	//
[c11e31c]	15
[de62360d]	16	// This grammar is based on the ANSI99/11 C grammar, specifically parts of EXPRESSION and STATEMENTS, and on the C
	17	// grammar by James A. Roskind, specifically parts of DECLARATIONS and EXTERNAL DEFINITIONS. While parts have been
	18	// copied, important changes have been made in all sections; these changes are sufficient to constitute a new grammar.
	19	// In particular, this grammar attempts to be more syntactically precise, i.e., it parses less incorrect language syntax
	20	// that must be subsequently rejected by semantic checks. Nevertheless, there are still several semantic checks
	21	// required and many are noted in the grammar. Finally, the grammar is extended with GCC and CFA language extensions.
[c11e31c]	22
[de62360d]	23	// Acknowledgments to Richard Bilson, Glen Ditchfield, and Rodolfo Gabriel Esteves who all helped when I got stuck with
	24	// the grammar.
[c11e31c]	25
	26	// The root language for this grammar is ANSI99/11 C. All of ANSI99/11 is parsed, except for:
	27	//
[9380add]	28	// designation with '=' (use ':' instead)
[c11e31c]	29	//
[9380add]	30	// This incompatibility is discussed in detail before the "designation" grammar rule. Most of the syntactic extensions
	31	// from ANSI90 to ANSI11 C are marked with the comment "C99/C11".
[f9c3100]	32
[e16eb460]	33	// This grammar also has two levels of extensions. The first extensions cover most of the GCC C extensions. All of the
[9380add]	34	// syntactic extensions for GCC C are marked with the comment "GCC". The second extensions are for Cforall (CFA), which
	35	// fixes several of C's outstanding problems and extends C with many modern language concepts. All of the syntactic
	36	// extensions for CFA C are marked with the comment "CFA".
[51b73452]	37
	38	%{
[ec3f9c8]	39	#define YYDEBUG_LEXER_TEXT( yylval ) // lexer loads this up each time
[b87a5ed]	40	#define YYDEBUG 1 // get the pretty debugging code to compile
[201aeb9]	41	#define YYERROR_VERBOSE // more information in syntax errors
[51b73452]	42
	43	#undef __GNUC_MINOR__
	44
	45	#include <cstdio>
[9feb34b]	46	#include <sstream>
[51b73452]	47	#include <stack>
[9ed4f94]	48	using namespace std;
	49
[c92bdcc]	50	#include "DeclarationNode.hpp" // for DeclarationNode, ...
	51	#include "ExpressionNode.hpp" // for ExpressionNode, ...
	52	#include "InitializerNode.hpp" // for InitializerNode, ...
	53	#include "ParserTypes.hpp"
	54	#include "StatementNode.hpp" // for build_...
	55	#include "TypedefTable.hpp"
	56	#include "TypeData.hpp"
[7a780ad]	57	#include "AST/Type.hpp" // for BasicType, BasicKind
[c92bdcc]	58	#include "Common/SemanticError.hpp" // error_str
	59	#include "Common/Utility.hpp" // for maybeMoveBuild, maybeBuild, CodeLo...
[51b73452]	60
[ae2f2ae]	61	// lex uses __null in a boolean context, it's fine.
[0bd46fd]	62	#ifdef __clang__
[09f34a84]	63	#pragma GCC diagnostic ignored "-Wparentheses-equality"
[0bd46fd]	64	#endif
[ae2f2ae]	65
[cbaee0d]	66	extern DeclarationNode * parseTree;
[bb7422a]	67	extern ast::Linkage::Spec linkage;
[0da3e2c]	68	extern TypedefTable typedefTable;
	69
[bb7422a]	70	stack<ast::Linkage::Spec> linkageStack;
[7bf7fb9]	71
[15697ff]	72	bool appendStr( string & to, string & from ) {
	73	// 1. Multiple strings are concatenated into a single string but not combined internally. The reason is that
[ea0c5e3]	74	// "\x12" "3" is treated as 2 characters versus 1 because "escape sequences are converted into single members of
[15697ff]	75	// the execution character set just prior to adjacent string literal concatenation" (C11, Section 6.4.5-8). It is
	76	// easier to let the C compiler handle this case.
	77	//
	78	// 2. String encodings are transformed into canonical form (one encoding at start) so the encoding can be found
	79	// without searching the string, e.g.: "abc" L"def" L"ghi" => L"abc" "def" "ghi". Multiple encodings must match,
[efc8f3e]	80	// e.g., u"a" U"b" L"c" is disallowed.
[15697ff]	81
	82	if ( from[0] != '"' ) { // encoding ?
	83	if ( to[0] != '"' ) { // encoding ?
[ea0c5e3]	84	if ( to[0] != from[0] \|\| to[1] != from[1] ) { // different encodings ?
[15697ff]	85	yyerror( "non-matching string encodings for string-literal concatenation" );
	86	return false; // parse error, must call YYERROR in action
[ea0c5e3]	87	} else if ( from[1] == '8' ) {
	88	from.erase( 0, 1 ); // remove 2nd encoding
[15697ff]	89	} // if
	90	} else {
[ea0c5e3]	91	if ( from[1] == '8' ) { // move encoding to start
	92	to = "u8" + to;
	93	from.erase( 0, 1 ); // remove 2nd encoding
	94	} else {
	95	to = from[0] + to;
	96	} // if
[15697ff]	97	} // if
	98	from.erase( 0, 1 ); // remove 2nd encoding
	99	} // if
	100	to += " " + from; // concatenated into single string
	101	return true;
[7bf7fb9]	102	} // appendStr
[c0aa336]	103
[d8454b9]	104	DeclarationNode * distAttr( DeclarationNode * typeSpec, DeclarationNode * declList ) {
[4eb3a7c5]	105	// Distribute type specifier across all declared variables, e.g., static, const, __attribute__.
[d8454b9]	106	assert( declList );
	107
[4eb3a7c5]	108	// Do not distribute attributes for aggregates because the attributes surrounding the aggregate belong it not the
	109	// variables in the declaration list, e.g.,
	110	//
	111	// struct __attribute__(( aligned(128) )) S { ...
	112	// } v1 __attribute__(( aligned(64) )), v2 __attribute__(( aligned(32) )), v3;
	113	// struct S v4;
	114	//
	115	// v1 => 64, v2 =>32, v3 => 128, v2 => 128
	116	//
	117	// Anonymous aggregates are a special case because there is no aggregate to bind the attribute to; hence it floats
	118	// to the declaration list.
	119	//
	120	// struct __attribute__(( aligned(128) )) /anonymous / { ... } v1;
	121	//
	122	// v1 => 128
	123
	124	bool copyattr = ! (typeSpec->type && typeSpec->type->kind == TypeData::Aggregate && ! typeSpec->type->aggregate.anon );
	125
	126	// addType copies the type information for the aggregate instances from typeSpec into cl's aggInst.aggregate.
	127	DeclarationNode * cl = (new DeclarationNode)->addType( typeSpec ); // typeSpec IS DELETED!!!
	128
[647e2ea]	129	// Start at second variable in declaration list and clone the type specifiers for each variable.
[44adf1b]	130	for ( DeclarationNode * cur = declList->next ; cur != nullptr; cur = cur->next ) {
[4eb3a7c5]	131	cl->cloneBaseType( cur, copyattr ); // cur is modified
[c0aa336]	132	} // for
[4eb3a7c5]	133
	134	// Add first variable in declaration list with hidden type information in aggInst.aggregate, which is used by
	135	// extractType to recover the type for the aggregate instances.
	136	declList->addType( cl, copyattr ); // cl IS DELETED!!!
[c0aa336]	137	return declList;
	138	} // distAttr
	139
	140	void distExt( DeclarationNode * declaration ) {
	141	// distribute EXTENSION across all declarations
[44adf1b]	142	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[c0aa336]	143	iter->set_extension( true );
	144	} // for
	145	} // distExt
[fdca7c6]	146
[e07caa2]	147	void distInl( DeclarationNode * declaration ) {
[5695645]	148	// distribute INLINE across all declarations
[44adf1b]	149	for ( DeclarationNode *iter = declaration ; iter != nullptr ; iter = iter->next ) {
[e07caa2]	150	iter->set_inLine( true );
	151	} // for
	152	} // distInl
	153
[4c3ee8d]	154	void distQual( DeclarationNode * declaration, DeclarationNode * qualifiers ) {
[284da8c]	155	// distribute qualifiers across all non-variable declarations in a distribution statemement
[44adf1b]	156	for ( DeclarationNode * iter = declaration ; iter != nullptr ; iter = iter->next ) {
[284da8c]	157	// SKULLDUGGERY: Distributions are parsed inside out, so qualifiers are added to declarations inside out. Since
	158	// addQualifiers appends to the back of the list, the forall clauses are in the wrong order (right to left). To
	159	// get the qualifiers in the correct order and still use addQualifiers (otherwise, 90% of addQualifiers has to
	160	// be copied to add to front), the appropriate forall pointers are interchanged before calling addQualifiers.
	161	DeclarationNode * clone = qualifiers->clone();
	162	if ( qualifiers->type ) { // forall clause ? (handles SC)
	163	if ( iter->type->kind == TypeData::Aggregate ) { // struct/union ?
	164	swap( clone->type->forall, iter->type->aggregate.params );
	165	iter->addQualifiers( clone );
	166	} else if ( iter->type->kind == TypeData::AggregateInst && iter->type->aggInst.aggregate->aggregate.body ) { // struct/union ?
	167	// Create temporary node to hold aggregate, call addQualifiers as above, then put nodes back together.
	168	DeclarationNode newnode;
	169	swap( newnode.type, iter->type->aggInst.aggregate );
	170	swap( clone->type->forall, newnode.type->aggregate.params );
	171	newnode.addQualifiers( clone );
	172	swap( newnode.type, iter->type->aggInst.aggregate );
	173	} else if ( iter->type->kind == TypeData::Function ) { // routines ?
	174	swap( clone->type->forall, iter->type->forall );
	175	iter->addQualifiers( clone );
	176	} // if
	177	} else { // just SC qualifiers
	178	iter->addQualifiers( clone );
	179	} // if
[4c3ee8d]	180	} // for
[284da8c]	181	delete qualifiers;
	182	} // distQual
[4c3ee8d]	183
[c38ae92]	184	// There is an ambiguity for inline generic-routine return-types and generic routines.
	185	// forall( otype T ) struct S { int i; } bar( T ) {}
	186	// Does the forall bind to the struct or the routine, and how would it be possible to explicitly specify the binding.
	187	// forall( otype T ) struct S { int T; } forall( otype W ) bar( W ) {}
[7fdb94e1]	188	// Currently, the forall is associated with the routine, and the generic type has to be separately defined:
	189	// forall( otype T ) struct S { int T; };
	190	// forall( otype W ) bar( W ) {}
[c38ae92]	191
	192	void rebindForall( DeclarationNode * declSpec, DeclarationNode * funcDecl ) {
[7fdb94e1]	193	if ( declSpec->type->kind == TypeData::Aggregate ) { // ignore aggregate definition
[c38ae92]	194	funcDecl->type->forall = declSpec->type->aggregate.params; // move forall from aggregate to function type
	195	declSpec->type->aggregate.params = nullptr;
	196	} // if
	197	} // rebindForall
	198
[60a8062]	199	string * build_postfix_name( string * name ) {
	200	name = string("__postfix_func_") + name;
	201	return name;
[dc7db63]	202	} // build_postfix_name
	203
[f7e4db27]	204	DeclarationNode * fieldDecl( DeclarationNode * typeSpec, DeclarationNode * fieldList ) {
[67467a3]	205	if ( nullptr == fieldList ) {
	206	if ( !( typeSpec->type && typeSpec->type->kind == TypeData::Aggregate ) ) {
[f7e4db27]	207	stringstream ss;
[d8454b9]	208	// printf( "fieldDecl1 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	209	SemanticWarning( yylloc, Warning::SuperfluousDecl, ss.str().c_str() );
	210	return nullptr;
	211	} // if
[d8454b9]	212	// printf( "fieldDecl2 typeSpec %p\n", typeSpec ); typeSpec->type->print( std::cout );
[f7e4db27]	213	fieldList = DeclarationNode::newName( nullptr );
	214	} // if
[d8454b9]	215
	216	// printf( "fieldDecl3 typeSpec %p\n", typeSpec ); typeSpec->print( std::cout, 0 );
[4eb3a7c5]	217	DeclarationNode * temp = distAttr( typeSpec, fieldList ); // mark all fields in list
[d8454b9]	218	// printf( "fieldDecl4 temp %p\n", temp ); temp->print( std::cout, 0 );
	219	return temp;
[f7e4db27]	220	} // fieldDecl
	221
[bb7422a]	222	#define NEW_ZERO new ExpressionNode( build_constantInteger( yylloc, *new string( "0" ) ) )
	223	#define NEW_ONE new ExpressionNode( build_constantInteger( yylloc, *new string( "1" ) ) )
[52be5948]	224	#define UPDOWN( compop, left, right ) (compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? left : right)
[55266c7]	225	#define MISSING_ANON_FIELD "syntax error, missing loop fields with an anonymous loop index is meaningless as loop index is unavailable in loop body."
	226	#define MISSING_LOW "syntax error, missing low value for up-to range so index is uninitialized."
	227	#define MISSING_HIGH "syntax error, missing high value for down-to range so index is uninitialized."
[d78c238]	228
[1cdc052]	229	static ForCtrl * makeForCtrl(
[bb7422a]	230	const CodeLocation & location,
[1cdc052]	231	DeclarationNode * init,
	232	enum OperKinds compop,
	233	ExpressionNode * comp,
	234	ExpressionNode * inc ) {
	235	// Wrap both comp/inc if they are non-null.
[bb7422a]	236	if ( comp ) comp = new ExpressionNode( build_binary_val( location,
[1cdc052]	237	compop,
[bb7422a]	238	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	239	comp ) );
[bb7422a]	240	if ( inc ) inc = new ExpressionNode( build_binary_val( location,
[1cdc052]	241	// choose += or -= for upto/downto
	242	compop == OperKinds::LThan \|\| compop == OperKinds::LEThan ? OperKinds::PlusAssn : OperKinds::MinusAssn,
[bb7422a]	243	new ExpressionNode( build_varref( location, new string( *init->name ) ) ),
[1cdc052]	244	inc ) );
	245	// The StatementNode call frees init->name, it must happen later.
	246	return new ForCtrl( new StatementNode( init ), comp, inc );
	247	}
	248
[bb7422a]	249	ForCtrl * forCtrl( const CodeLocation & location, DeclarationNode * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
[d78c238]	250	if ( index->initializer ) {
[55266c7]	251	SemanticError( yylloc, "syntax error, direct initialization disallowed. Use instead: type var; initialization ~ comparison ~ increment." );
[d78c238]	252	} // if
	253	if ( index->next ) {
[55266c7]	254	SemanticError( yylloc, "syntax error, multiple loop indexes disallowed in for-loop declaration." );
[d78c238]	255	} // if
[1cdc052]	256	DeclarationNode * initDecl = index->addInitializer( new InitializerNode( start ) );
[bb7422a]	257	return makeForCtrl( location, initDecl, compop, comp, inc );
[d78c238]	258	} // forCtrl
	259
[bb7422a]	260	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, string * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
	261	ast::ConstantExpr * constant = dynamic_cast<ast::ConstantExpr *>(type->expr.get());
	262	if ( constant && (constant->rep == "0" \|\| constant->rep == "1") ) {
[7a780ad]	263	type = new ExpressionNode( new ast::CastExpr( location, maybeMoveBuild(type), new ast::BasicType( ast::BasicKind::SignedInt ) ) );
[0982a05]	264	} // if
[1cdc052]	265	DeclarationNode * initDecl = distAttr(
	266	DeclarationNode::newTypeof( type, true ),
	267	DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) )
	268	);
[bb7422a]	269	return makeForCtrl( location, initDecl, compop, comp, inc );
[f271bdd]	270	} // forCtrl
	271
[bb7422a]	272	ForCtrl * forCtrl( const CodeLocation & location, ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) {
	273	if ( auto identifier = dynamic_cast<ast::NameExpr *>(index->expr.get()) ) {
	274	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
	275	} else if ( auto commaExpr = dynamic_cast<ast::CommaExpr *>( index->expr.get() ) ) {
	276	if ( auto identifier = commaExpr->arg1.as<ast::NameExpr>() ) {
	277	return forCtrl( location, type, new string( identifier->name ), start, compop, comp, inc );
[6d01d89]	278	} else {
[55266c7]	279	SemanticError( yylloc, "syntax error, loop-index name missing. Expression disallowed." ); return nullptr;
[6d01d89]	280	} // if
[f1aeede]	281	} else {
[b1f2007d]	282	SemanticError( yylloc, "syntax error, loop-index name missing. Expression disallowed." ); return nullptr;
[f1aeede]	283	} // if
[f271bdd]	284	} // forCtrl
	285
[996c8ed]	286	static void IdentifierBeforeIdentifier( string & identifier1, string & identifier2, const char * kind ) {
[b1f2007d]	287	SemanticError( yylloc, "syntax error, adjacent identifiers \"%s\" and \"%s\" are not meaningful in an %s.\n"
	288	"Possible cause is misspelled type name or missing generic parameter.",
	289	identifier1.c_str(), identifier2.c_str(), kind );
[996c8ed]	290	} // IdentifierBeforeIdentifier
	291
	292	static void IdentifierBeforeType( string & identifier, const char * kind ) {
[b1f2007d]	293	SemanticError( yylloc, "syntax error, identifier \"%s\" cannot appear before a %s.\n"
	294	"Possible cause is misspelled storage/CV qualifier, misspelled typename, or missing generic parameter.",
	295	identifier.c_str(), kind );
[996c8ed]	296	} // IdentifierBeforeType
	297
[24711a3]	298	bool forall = false; // aggregate have one or more forall qualifiers ?
[d48e529]	299
[201aeb9]	300	// https://www.gnu.org/software/bison/manual/bison.html#Location-Type
	301	#define YYLLOC_DEFAULT(Cur, Rhs, N) \
	302	if ( N ) { \
	303	(Cur).first_line = YYRHSLOC( Rhs, 1 ).first_line; \
	304	(Cur).first_column = YYRHSLOC( Rhs, 1 ).first_column; \
	305	(Cur).last_line = YYRHSLOC( Rhs, N ).last_line; \
	306	(Cur).last_column = YYRHSLOC( Rhs, N ).last_column; \
	307	(Cur).filename = YYRHSLOC( Rhs, 1 ).filename; \
	308	} else { \
	309	(Cur).first_line = (Cur).last_line = YYRHSLOC( Rhs, 0 ).last_line; \
	310	(Cur).first_column = (Cur).last_column = YYRHSLOC( Rhs, 0 ).last_column; \
	311	(Cur).filename = YYRHSLOC( Rhs, 0 ).filename; \
	312	}
[51b73452]	313	%}
	314
[15697ff]	315	%define parse.error verbose
	316
[201aeb9]	317	// Types declaration for productions
[7cf8006]	318
[0982a05]	319	%union {
[6cef439]	320	// A raw token can be used.
[a67b60e]	321	Token tok;
[6cef439]	322
	323	// The general node types hold some generic node or list of nodes.
[a67b60e]	324	DeclarationNode * decl;
[6cef439]	325	InitializerNode * init;
	326	ExpressionNode * expr;
[32d6fdc]	327	StatementNode * stmt;
[6611177]	328	ClauseNode * clause;
[6cef439]	329	TypeData * type;
	330
	331	// Special "nodes" containing compound information.
[473d1da0]	332	CondCtl * ifctl;
[32d6fdc]	333	ForCtrl * forctl;
	334	LabelNode * labels;
[6cef439]	335
	336	// Various flags and single values that become fields later.
	337	ast::AggregateDecl::Aggregate aggKey;
	338	ast::TypeDecl::Kind tclass;
[32d6fdc]	339	OperKinds oper;
	340	bool is_volatile;
	341	EnumHiding enum_hiding;
	342	ast::ExceptionKind except_kind;
[6cef439]	343	// String passes ownership with it.
	344	std::string * str;
	345
	346	// Narrower node types are used to avoid constant unwrapping.
	347	ast::WaitForStmt * wfs;
	348	ast::WaitUntilStmt::ClauseNode * wucn;
[bb7422a]	349	ast::GenericExpr * genexpr;
[a67b60e]	350	}
	351
[bb7422a]	352	// ********************** TERMINAL TOKENS ******************************
[51b73452]	353
[c11e31c]	354	// keywords
[51b73452]	355	%token TYPEDEF
[a7c90d4]	356	%token EXTERN STATIC AUTO REGISTER
[59c7e3e]	357	%token THREADLOCALGCC THREADLOCALC11 // GCC, C11
[a7c90d4]	358	%token INLINE FORTRAN // C99, extension ISO/IEC 9899:1999 Section J.5.9(1)
	359	%token NORETURN // C11
[51b73452]	360	%token CONST VOLATILE
[b87a5ed]	361	%token RESTRICT // C99
[a7c90d4]	362	%token ATOMIC // C11
[1f652a7]	363	%token FORALL MUTEX VIRTUAL VTABLE COERCE // CFA
[72457b6]	364	%token VOID CHAR SHORT INT LONG FLOAT DOUBLE SIGNED UNSIGNED
[b87a5ed]	365	%token BOOL COMPLEX IMAGINARY // C99
[f1da02c]	366	%token INT128 UINT128 uuFLOAT80 uuFLOAT128 // GCC
[e15853c]	367	%token uFLOAT16 uFLOAT32 uFLOAT32X uFLOAT64 uFLOAT64X uFLOAT128 // GCC
[15f769c]	368	%token DECIMAL32 DECIMAL64 DECIMAL128 // GCC
[72457b6]	369	%token ZERO_T ONE_T // CFA
[59c7e3e]	370	%token SIZEOF TYPEOF VA_LIST VA_ARG AUTO_TYPE // GCC
[1f652a7]	371	%token OFFSETOF BASETYPEOF TYPEID // CFA
[51b73452]	372	%token ENUM STRUCT UNION
[c27fb59]	373	%token EXCEPTION // CFA
[553772b]	374	%token GENERATOR COROUTINE MONITOR THREAD // CFA
[a7c90d4]	375	%token OTYPE FTYPE DTYPE TTYPE TRAIT // CFA
[25744d2]	376	// %token RESUME // CFA
[1f652a7]	377	%token LABEL // GCC
[25744d2]	378	%token SUSPEND // CFA
[b87a5ed]	379	%token ATTRIBUTE EXTENSION // GCC
[51b73452]	380	%token IF ELSE SWITCH CASE DEFAULT DO WHILE FOR BREAK CONTINUE GOTO RETURN
[466787a]	381	%token CHOOSE FALLTHRU FALLTHROUGH WITH WHEN WAITFOR WAITUNTIL // CFA
[11ab0b4a]	382	%token CORUN COFOR
[4744074]	383	%token DISABLE ENABLE TRY THROW THROWRESUME AT // CFA
[b87a5ed]	384	%token ASM // C99, extension ISO/IEC 9899:1999 Section J.5.10(1)
[a7c90d4]	385	%token ALIGNAS ALIGNOF GENERIC STATICASSERT // C11
[51b73452]	386
[c11e31c]	387	// names and constants: lexer differentiates between identifier and typedef names
[9fd9d015]	388	%token<tok> IDENTIFIER TYPEDIMname TYPEDEFname TYPEGENname
[12f1156]	389	%token<tok> TIMEOUT WAND WOR CATCH RECOVER CATCHRESUME FIXUP FINALLY // CFA
[9fb1367]	390	%token<tok> INTEGERconstant CHARACTERconstant STRINGliteral
[61fc4f6]	391	%token<tok> DIRECTIVE
[1b29996]	392	// Floating point constant is broken into three kinds of tokens because of the ambiguity with tuple indexing and
	393	// overloading constants 0/1, e.g., x.1 is lexed as (x)(.1), where (.1) is a factional constant, but is semantically
	394	// converted into the tuple index (.)(1). e.g., 3.x
[930f69e]	395	%token<tok> FLOATING_DECIMALconstant FLOATING_FRACTIONconstant FLOATINGconstant
[51b73452]	396
[c11e31c]	397	// multi-character operators
[b87a5ed]	398	%token ARROW // ->
	399	%token ICR DECR // ++ --
	400	%token LS RS // << >>
	401	%token LE GE EQ NE // <= >= == !=
	402	%token ANDAND OROR // && \|\|
[647e2ea]	403	%token ATTR ELLIPSIS // @@ ...
[b87a5ed]	404
[e5f2a67]	405	%token EXPassign MULTassign DIVassign MODassign // \= *= /= %=
[b87a5ed]	406	%token PLUSassign MINUSassign // += -=
	407	%token LSassign RSassign // <<= >>=
	408	%token ANDassign ERassign ORassign // &= ^= \|=
[51b73452]	409
[d69f4bb4]	410	%token ErangeUpEq ErangeDown ErangeDownEq // ~= -~ -~=
[e7aed49]	411	%token ATassign // @=
[097e2b0]	412
[e16eb460]	413	%type<tok> identifier identifier_at identifier_or_type_name attr_name
[5b2edbc]	414	%type<tok> quasi_keyword
[32d6fdc]	415	%type<expr> string_literal
[ab57786]	416	%type<str> string_literal_list
[51b73452]	417
[71a422a]	418	%type<enum_hiding> hide_opt visible_hide_opt
[7cf8006]	419
[c11e31c]	420	// expressions
[32d6fdc]	421	%type<expr> constant
[71a422a]	422	%type<expr> tuple tuple_expression_list
[32d6fdc]	423	%type<oper> ptrref_operator unary_operator assignment_operator simple_assignment_operator compound_assignment_operator
	424	%type<expr> primary_expression postfix_expression unary_expression
[71a422a]	425	%type<expr> cast_expression_list cast_expression exponential_expression multiplicative_expression additive_expression
	426	%type<expr> shift_expression relational_expression equality_expression
[32d6fdc]	427	%type<expr> AND_expression exclusive_OR_expression inclusive_OR_expression
	428	%type<expr> logical_AND_expression logical_OR_expression
	429	%type<expr> conditional_expression constant_expression assignment_expression assignment_expression_opt
[71a422a]	430	%type<expr> comma_expression comma_expression_opt
	431	%type<expr> argument_expression_list_opt argument_expression_list argument_expression default_initializer_opt
[473d1da0]	432	%type<ifctl> conditional_declaration
[71a422a]	433	%type<forctl> for_control_expression for_control_expression_list
[32d6fdc]	434	%type<oper> upupeq updown updowneq downupdowneq
	435	%type<expr> subrange
[c0aa336]	436	%type<decl> asm_name_opt
[71a422a]	437	%type<expr> asm_operands_opt asm_operands_list asm_operand
[32d6fdc]	438	%type<labels> label_list
	439	%type<expr> asm_clobbers_list_opt
	440	%type<is_volatile> asm_volatile_opt
	441	%type<expr> handler_predicate_opt
[67d4e37]	442	%type<genexpr> generic_association generic_assoc_list
[51b73452]	443
[c11e31c]	444	// statements
[71a422a]	445	%type<stmt> statement labeled_statement compound_statement
[32d6fdc]	446	%type<stmt> statement_decl statement_decl_list statement_list_nodecl
[647e2ea]	447	%type<stmt> selection_statement
[71a422a]	448	%type<clause> switch_clause_list_opt switch_clause_list
[32d6fdc]	449	%type<expr> case_value
[71a422a]	450	%type<clause> case_clause case_value_list case_label case_label_list
[32d6fdc]	451	%type<stmt> iteration_statement jump_statement
[71a422a]	452	%type<stmt> expression_statement asm_statement
[32d6fdc]	453	%type<stmt> with_statement
	454	%type<expr> with_clause_opt
[11ab0b4a]	455	%type<stmt> corun_statement cofor_statement
[32d6fdc]	456	%type<stmt> exception_statement
[6611177]	457	%type<clause> handler_clause finally_clause
[32d6fdc]	458	%type<except_kind> handler_key
	459	%type<stmt> mutex_statement
	460	%type<expr> when_clause when_clause_opt waitfor waituntil timeout
[71a422a]	461	%type<stmt> waitfor_statement waituntil_statement
[c86b08d]	462	%type<wfs> wor_waitfor_clause
[6e1e2d0]	463	%type<wucn> waituntil_clause wand_waituntil_clause wor_waituntil_clause
[51b73452]	464
[c11e31c]	465	// declarations
[c0aa336]	466	%type<decl> abstract_declarator abstract_ptr abstract_array abstract_function array_dimension multi_array_dimension
[59c7e3e]	467	%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]	468	%type<decl> abstract_parameter_declaration
[51b73452]	469
[e307e12]	470	%type<aggKey> aggregate_key aggregate_data aggregate_control
[d0ffed1]	471	%type<decl> aggregate_type aggregate_type_nobody
[51b73452]	472
[9997fee]	473	%type<decl> assertion assertion_list assertion_list_opt
[51b73452]	474
[32d6fdc]	475	%type<expr> bit_subrange_size_opt bit_subrange_size
[51b73452]	476
[84d58c5]	477	%type<decl> basic_declaration_specifier basic_type_name basic_type_specifier direct_type indirect_type
[6cef439]	478	%type<type> basic_type_name_type
	479	%type<type> vtable vtable_opt default_opt
[51b73452]	480
[4040425]	481	%type<decl> trait_declaration trait_declaration_list trait_declaring_list trait_specifier
[51b73452]	482
	483	%type<decl> declaration declaration_list declaration_list_opt declaration_qualifier_list
[d0ffed1]	484	%type<decl> declaration_specifier declaration_specifier_nobody declarator declaring_list
[51b73452]	485
[d0ffed1]	486	%type<decl> elaborated_type elaborated_type_nobody
[51b73452]	487
[42422fb]	488	%type<decl> enumerator_list enum_type enum_type_nobody enumerator_type
[32d6fdc]	489	%type<init> enumerator_value_opt
[51b73452]	490
[3d56d15b]	491	%type<decl> external_definition external_definition_list external_definition_list_opt
	492
	493	%type<decl> exception_declaration
[51b73452]	494
[12f1156]	495	%type<decl> field_declaration_list_opt field_declaration field_declaring_list_opt field_declarator field_abstract_list_opt field_abstract
[32d6fdc]	496	%type<expr> field field_name_list field_name fraction_constants_opt
[51b73452]	497
[4d51835]	498	%type<decl> external_function_definition function_definition function_array function_declarator function_no_ptr function_ptr
[51b73452]	499
[d3bc0ad]	500	%type<decl> identifier_parameter_declarator identifier_parameter_ptr identifier_parameter_array identifier_parameter_function
	501	%type<decl> identifier_list
[51b73452]	502
[c0aa336]	503	%type<decl> cfa_abstract_array cfa_abstract_declarator_no_tuple cfa_abstract_declarator_tuple
	504	%type<decl> cfa_abstract_function cfa_abstract_parameter_declaration cfa_abstract_parameter_list
	505	%type<decl> cfa_abstract_ptr cfa_abstract_tuple
[51b73452]	506
[c0aa336]	507	%type<decl> cfa_array_parameter_1st_dimension
[51b73452]	508
[679e644]	509	%type<decl> cfa_trait_declaring_list cfa_declaration cfa_field_declaring_list cfa_field_abstract_list
[c0aa336]	510	%type<decl> cfa_function_declaration cfa_function_return cfa_function_specifier
[51b73452]	511
[c0aa336]	512	%type<decl> cfa_identifier_parameter_array cfa_identifier_parameter_declarator_no_tuple
	513	%type<decl> cfa_identifier_parameter_declarator_tuple cfa_identifier_parameter_ptr
[51b73452]	514
[647e2ea]	515	%type<decl> cfa_parameter_declaration cfa_parameter_list cfa_parameter_list_ellipsis_opt
[51b73452]	516
[c0aa336]	517	%type<decl> cfa_typedef_declaration cfa_variable_declaration cfa_variable_specifier
[51b73452]	518
[b9be000b]	519	%type<decl> c_declaration static_assert
[c0aa336]	520	%type<decl> KR_function_declarator KR_function_no_ptr KR_function_ptr KR_function_array
[35718a9]	521	%type<decl> KR_parameter_list KR_parameter_list_opt
[51b73452]	522
[647e2ea]	523	%type<decl> parameter_declaration parameter_list parameter_list_ellipsis_opt
[51b73452]	524
[2871210]	525	%type<decl> paren_identifier paren_type
[51b73452]	526
[0da3e2c]	527	%type<decl> storage_class storage_class_list
[51b73452]	528
[d0ffed1]	529	%type<decl> sue_declaration_specifier sue_declaration_specifier_nobody sue_type_specifier sue_type_specifier_nobody
[51b73452]	530
[5a51798]	531	%type<tclass> type_class new_type_class
[51b73452]	532	%type<decl> type_declarator type_declarator_name type_declaring_list
	533
[6cef439]	534	%type<decl> type_declaration_specifier type_type_specifier
	535	%type<type> type_name typegen_name
[f9c3100]	536	%type<decl> typedef_name typedef_declaration typedef_expression
[c0aa336]	537
[1f771fc]	538	%type<decl> variable_type_redeclarator variable_type_ptr variable_type_array variable_type_function
	539	%type<decl> general_function_declarator function_type_redeclarator function_type_array function_type_no_ptr function_type_ptr
[c0aa336]	540
	541	%type<decl> type_parameter_redeclarator type_parameter_ptr type_parameter_array type_parameter_function
[51b73452]	542
[84d58c5]	543	%type<decl> type type_no_function
	544	%type<decl> type_parameter type_parameter_list type_initializer_opt
[51b73452]	545
[647e2ea]	546	%type<expr> type_parameters_opt type_list array_type_list // array_dimension_list
[51b73452]	547
[6cef439]	548	%type<decl> type_qualifier forall type_qualifier_list_opt type_qualifier_list
	549	%type<type> type_qualifier_name
[f9c3100]	550	%type<decl> type_specifier type_specifier_nobody
[51b73452]	551
[c0aa336]	552	%type<decl> variable_declarator variable_ptr variable_array variable_function
	553	%type<decl> variable_abstract_declarator variable_abstract_ptr variable_abstract_array variable_abstract_function
[51b73452]	554
[f9c3100]	555	%type<decl> attribute_list_opt attribute_list attribute attribute_name_list attribute_name
[1db21619]	556
[c11e31c]	557	// initializers
[32d6fdc]	558	%type<init> initializer initializer_list_opt initializer_opt
[51b73452]	559
[c11e31c]	560	// designators
[32d6fdc]	561	%type<expr> designator designator_list designation
[51b73452]	562
	563
[65d6de4]	564	// Handle shift/reduce conflict for dangling else by shifting the ELSE token. For example, this string is ambiguous:
	565	// .---------. matches IF '(' comma_expression ')' statement . (reduce)
	566	// if ( C ) S1 else S2
	567	// `-----------------' matches IF '(' comma_expression ')' statement . (shift) ELSE statement */
[5b2edbc]	568	// Similar issues exit with the waitfor statement.
[51b73452]	569
[9fd9d015]	570	// Order of these lines matters (low-to-high precedence). THEN is left associative over WAND/WOR/TIMEOUT/ELSE, WAND/WOR
	571	// is left associative over TIMEOUT/ELSE, and TIMEOUT is left associative over ELSE.
[9fb1367]	572	%precedence THEN // rule precedence for IF/WAITFOR statement
[9fd9d015]	573	%precedence ANDAND // token precedence for start of WAND in WAITFOR statement
	574	%precedence WAND // token precedence for start of WAND in WAITFOR statement
	575	%precedence OROR // token precedence for start of WOR in WAITFOR statement
[9fb1367]	576	%precedence WOR // token precedence for start of WOR in WAITFOR statement
	577	%precedence TIMEOUT // token precedence for start of TIMEOUT in WAITFOR statement
	578	%precedence CATCH // token precedence for start of TIMEOUT in WAITFOR statement
	579	%precedence RECOVER // token precedence for start of TIMEOUT in WAITFOR statement
	580	%precedence CATCHRESUME // token precedence for start of TIMEOUT in WAITFOR statement
	581	%precedence FIXUP // token precedence for start of TIMEOUT in WAITFOR statement
	582	%precedence FINALLY // token precedence for start of TIMEOUT in WAITFOR statement
	583	%precedence ELSE // token precedence for start of else clause in IF/WAITFOR statement
	584
[51b73452]	585
[65d6de4]	586	// Handle shift/reduce conflict for generic type by shifting the '(' token. For example, this string is ambiguous:
	587	// forall( otype T ) struct Foo { T v; };
	588	// .-----. matches pointer to function returning a generic (which is impossible without a type)
	589	// Foo ( *fp )( int );
	590	// `---' matches start of TYPEGENname '('
[fc20514]	591	// must be:
[a16a7ec]	592	// Foo( int ) ( *fp )( int );
[fc20514]	593	// The same problem occurs here:
	594	// forall( otype T ) struct Foo { T v; } ( *fp )( int );
	595	// must be:
	596	// forall( otype T ) struct Foo { T v; } ( int ) ( *fp )( int );
[65d6de4]	597
	598	// Order of these lines matters (low-to-high precedence).
	599	%precedence TYPEGENname
[284da8c]	600	%precedence '}'
[65d6de4]	601	%precedence '('
	602
[c786e1d]	603	// %precedence RESUME
	604	// %precedence '{'
	605	// %precedence ')'
	606
[f38e7d7]	607	%locations // support location tracking for error messages
[930f69e]	608
[b87a5ed]	609	%start translation_unit // parse-tree root
[51b73452]	610
	611	%%
[e1d66c84]	612	// ********************** Namespace Management ******************************
[c11e31c]	613
[3d26610]	614	// The C grammar is not context free because it relies on the distinct terminal symbols "identifier" and "TYPEDEFname",
	615	// which are lexically identical.
[c11e31c]	616	//
[3d26610]	617	// typedef int foo; // identifier foo must now be scanned as TYPEDEFname
	618	// foo f; // to allow it to appear in this context
[c11e31c]	619	//
[3d26610]	620	// While it may be possible to write a purely context-free grammar, such a grammar would obscure the relationship
	621	// between syntactic and semantic constructs. Cforall compounds this problem by introducing type names local to the
	622	// scope of a declaration (for instance, those introduced through "forall" qualifiers), and by introducing "type
	623	// generators" -- parameterized types. This latter type name creates a third class of identifiers, "TYPEGENname", which
	624	// must be distinguished by the lexical scanner.
[c11e31c]	625	//
[3d26610]	626	// Since the scanner cannot distinguish among the different classes of identifiers without some context information,
	627	// there is a type table (typedefTable), which holds type names and identifiers that override type names, for each named
	628	// scope. During parsing, semantic actions update the type table by adding new identifiers in the current scope. For
	629	// each context that introduces a name scope, a new level is created in the type table and that level is popped on
	630	// exiting the scope. Since type names can be local to a particular declaration, each declaration is itself a scope.
	631	// This requires distinguishing between type names that are local to the current declaration scope and those that
	632	// persist past the end of the declaration (i.e., names defined in "typedef" or "otype" declarations).
[c11e31c]	633	//
[3d26610]	634	// The non-terminals "push" and "pop" denote the opening and closing of named scopes. Every push has a matching pop in
	635	// the production rule. There are multiple lists of declarations, where each declaration is a named scope, so pop/push
	636	// around the list separator.
	637	//
[71a422a]	638	// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
[3d26610]	639	// push pop push pop
[51b73452]	640
	641	push:
[ab57786]	642	{ typedefTable.enterScope(); }
[4d51835]	643	;
[51b73452]	644
	645	pop:
[ab57786]	646	{ typedefTable.leaveScope(); }
[4d51835]	647	;
[51b73452]	648
[e1d66c84]	649	// ********************** CONSTANTS ******************************
[51b73452]	650
	651	constant:
[de62360d]	652	// ENUMERATIONconstant is not included here; it is treated as a variable with type "enumeration constant".
[bb7422a]	653	INTEGERconstant { $$ = new ExpressionNode( build_constantInteger( yylloc, *$1 ) ); }
	654	\| FLOATING_DECIMALconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	655	\| FLOATING_FRACTIONconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	656	\| FLOATINGconstant { $$ = new ExpressionNode( build_constantFloat( yylloc, *$1 ) ); }
	657	\| CHARACTERconstant { $$ = new ExpressionNode( build_constantChar( yylloc, *$1 ) ); }
[4d51835]	658	;
[51b73452]	659
[5b2edbc]	660	quasi_keyword: // CFA
	661	TIMEOUT
[9fd9d015]	662	\| WAND
[5b2edbc]	663	\| WOR
[9fb1367]	664	\| CATCH
	665	\| RECOVER
	666	\| CATCHRESUME
	667	\| FIXUP
	668	\| FINALLY
[5b2edbc]	669	;
	670
[033ff37]	671	identifier:
[4d51835]	672	IDENTIFIER
[5b2edbc]	673	\| quasi_keyword
[e16eb460]	674	;
	675
	676	identifier_at:
	677	identifier
[679e644]	678	\| '@' // CFA
	679	{ Token tok = { new string( DeclarationNode::anonymous.newName() ), yylval.tok.loc }; $$ = tok; }
[4d51835]	680	;
[51b73452]	681
[12f1156]	682	identifier_or_type_name:
	683	identifier
	684	\| TYPEDEFname
	685	\| TYPEGENname
	686	;
	687
[ab57786]	688	string_literal:
[32d6fdc]	689	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	690	;
	691
[b87a5ed]	692	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	693	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	694	\| string_literal_list STRINGliteral
	695	{
[15697ff]	696	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	697	delete $2; // allocated by lexer
[ab57786]	698	$$ = $1; // conversion from tok to str
[7bf7fb9]	699	}
[4d51835]	700	;
[51b73452]	701
[e1d66c84]	702	// ********************** EXPRESSIONS ******************************
[51b73452]	703
	704	primary_expression:
[4d51835]	705	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	706	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	707	\| quasi_keyword
[bb7422a]	708	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	709	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	710	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	711	\| tuple
[4d51835]	712	\| '(' comma_expression ')'
	713	{ $$ = $2; }
	714	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	715	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	716	\| type_name '.' identifier // CFA, nested type
[6cef439]	717	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	718	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	719	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	720	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	721	{
	722	// add the missing control expression to the GenericExpr and return it
[702e826]	723	$5->control = maybeMoveBuild( $3 );
[d807ca28]	724	$$ = new ExpressionNode( $5 );
	725	}
[c786e1d]	726	// \| RESUME '(' comma_expression ')'
	727	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	728	// \| RESUME '(' comma_expression ')' compound_statement
	729	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	730	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	731	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	732	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	733	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	734	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	735	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	736	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	737	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	738	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	739	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	740	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	741	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	742	;
	743
	744	generic_assoc_list: // C11
[d807ca28]	745	generic_association
[24c3b67]	746	\| generic_assoc_list ',' generic_association
[d807ca28]	747	{
	748	// steal the association node from the singleton and delete the wrapper
[bb7422a]	749	assert( 1 == $3->associations.size() );
	750	$1->associations.push_back( $3->associations.front() );
[d807ca28]	751	delete $3;
	752	$$ = $1;
	753	}
[24c3b67]	754	;
	755
	756	generic_association: // C11
	757	type_no_function ':' assignment_expression
[d807ca28]	758	{
	759	// create a GenericExpr wrapper with one association pair
[bb7422a]	760	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	761	}
[24c3b67]	762	\| DEFAULT ':' assignment_expression
[bb7422a]	763	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	764	;
[51b73452]	765
	766	postfix_expression:
[4d51835]	767	primary_expression
[1d71208]	768	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	769	// Historic, transitional: Disallow commas in subscripts.
	770	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	771	// Current: Commas in subscripts make tuples.
[b93c544]	772	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	773	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	774	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	775	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	776	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	777	// equivalent to the old x[i,j].
[bb7422a]	778	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	779	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	780	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	781	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	782	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	783	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	784	{
	785	Token fn;
	786	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	787	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	788	}
[cbbd8fd7]	789	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	790	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	791	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
	792	// { SemanticError( yylloc, "va_arg is currently unimplemented." ); $$ = nullptr; }
[b93c544]	793	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, new string( "__builtin_va_arg" ) ) ),
	794	$3->set_last( (ExpressionNode *)($6 ? $6->addType( $5 ) : $5) ) ) ); }
[948fdef]	795	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	796	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	797	\| constant '`' identifier // CFA, postfix call
[bb7422a]	798	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	799	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	800	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	801
	802	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	803	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	804	// them. For example:
	805	//
	806	// struct S;
	807	// forall(T) struct T;
	808	// union U;
	809	// enum E { S, T, E };
	810	// struct Z { int S, T, Z, E, U; };
	811	// void fred () {
	812	// Z z;
	813	// z.S; // lexer returns S is TYPEDEFname
	814	// z.T; // lexer returns T is TYPEGENname
	815	// z.Z; // lexer returns Z is TYPEDEFname
	816	// z.U; // lexer returns U is TYPEDEFname
	817	// z.E; // lexer returns E is TYPEDEFname
	818	// }
[12f1156]	819	\| postfix_expression '.' identifier_or_type_name
[4eb3a7c5]	820	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	821
[df22130]	822	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	823	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	824	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	825	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	826	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	827	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	828	\| postfix_expression '.' aggregate_control
[bb7422a]	829	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	830	\| postfix_expression ARROW identifier
[bb7422a]	831	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	832	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	833	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	834	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	835	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	836	\| postfix_expression ICR
[bb7422a]	837	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	838	\| postfix_expression DECR
[bb7422a]	839	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	840	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	841	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	842	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	843	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	844	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	845	{
[9706554]	846	Token fn;
[ecb27a7]	847	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	848	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	849	}
[4d51835]	850	;
[51b73452]	851
[cbbd8fd7]	852	argument_expression_list_opt:
[757ffed]	853	// empty
	854	{ $$ = nullptr; }
[e16eb460]	855	\| argument_expression_list
	856	;
	857
	858	argument_expression_list:
	859	argument_expression
[cbbd8fd7]	860	\| argument_expression_list_opt ',' argument_expression
[b93c544]	861	{ $$ = $1->set_last( $3 ); }
[4d51835]	862	;
[51b73452]	863
	864	argument_expression:
[757ffed]	865	'@' // CFA, default parameter
[679e644]	866	{ SemanticError( yylloc, "Default parameter for argument is currently unimplemented." ); $$ = nullptr; }
[9fd9d015]	867	// { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); }
[4d51835]	868	\| assignment_expression
	869	;
[b87a5ed]	870
[679e644]	871	field_name_list: // CFA, tuple field selector
[4d51835]	872	field
[b93c544]	873	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	874	;
[b87a5ed]	875
	876	field: // CFA, tuple field selector
[faddbd8]	877	field_name
[930f69e]	878	\| FLOATING_DECIMALconstant field
[bb7422a]	879	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	880	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	881	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	882	\| field_name '.' field
[bb7422a]	883	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	884	\| field_name '.' '[' field_name_list ']'
[bb7422a]	885	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	886	\| field_name ARROW field
[bb7422a]	887	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	888	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	889	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	890	;
[51b73452]	891
[faddbd8]	892	field_name:
[df22130]	893	INTEGERconstant fraction_constants_opt
[bb7422a]	894	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	895	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	896	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	897	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	898	{
[bb7422a]	899	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	900	}
[1b29996]	901	;
	902
[df22130]	903	fraction_constants_opt:
[1b29996]	904	// empty
[8780e30]	905	{ $$ = nullptr; }
[df22130]	906	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	907	{
[bb7422a]	908	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	909	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	910	}
[faddbd8]	911	;
	912
[51b73452]	913	unary_expression:
[4d51835]	914	postfix_expression
[c6b1105]	915	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	916	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	917	\| constant
[ab57786]	918	\| string_literal
[32d6fdc]	919	{ $$ = $1; }
[4d51835]	920	\| EXTENSION cast_expression // GCC
[e04ef3a]	921	{ $$ = $2->set_extension( true ); }
[c6b1105]	922	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	923	// { * X; } // dereference X
	924	// { * int X; } // CFA declaration of pointer to int
[51e076e]	925	\| ptrref_operator cast_expression // CFA
[9706554]	926	{
	927	switch ( $1 ) {
[bb7422a]	928	case OperKinds::AddressOf:
	929	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	930	break;
[bb7422a]	931	case OperKinds::PointTo:
	932	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	933	break;
[bb7422a]	934	case OperKinds::And:
	935	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	936	break;
[bb7422a]	937	default:
[9706554]	938	assert( false );
	939	}
	940	}
[4d51835]	941	\| unary_operator cast_expression
[bb7422a]	942	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	943	\| ICR unary_expression
[bb7422a]	944	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	945	\| DECR unary_expression
[bb7422a]	946	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	947	\| SIZEOF unary_expression
[bb7422a]	948	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[84d58c5]	949	\| SIZEOF '(' type_no_function ')'
[bb7422a]	950	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	951	\| ALIGNOF unary_expression // GCC, variable alignment
[bb7422a]	952	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a2e0687]	953	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	954	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	955
	956	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	957	// look ahead, so the cfa_abstract_function is factored out.
	958	\| SIZEOF '(' cfa_abstract_function ')'
	959	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	960	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	961	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	962
[033ff37]	963	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	964	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	965	\| TYPEID '(' type ')'
[1f652a7]	966	{
	967	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	968	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	969	}
[4d51835]	970	;
[51b73452]	971
[dd51906]	972	ptrref_operator:
[d9e2280]	973	'*' { $$ = OperKinds::PointTo; }
	974	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	975	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	976	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	977	;
	978
[51b73452]	979	unary_operator:
[d9e2280]	980	'+' { $$ = OperKinds::UnPlus; }
	981	\| '-' { $$ = OperKinds::UnMinus; }
	982	\| '!' { $$ = OperKinds::Neg; }
	983	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	984	;
[51b73452]	985
	986	cast_expression:
[4d51835]	987	unary_expression
[84d58c5]	988	\| '(' type_no_function ')' cast_expression
[bb7422a]	989	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	990	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	991	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	992	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	993	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	994	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	995	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	996	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	997	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	998	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	999	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	1000	\| '(' COERCE type_no_function ')' cast_expression // CFA
	1001	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	1002	\| '(' qualifier_cast_list ')' cast_expression // CFA
	1003	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	1004	// \| '(' type_no_function ')' tuple
[bb7422a]	1005	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	1006	;
[51b73452]	1007
[1528a2c]	1008	qualifier_cast_list:
	1009	cast_modifier type_qualifier_name
	1010	\| cast_modifier MUTEX
	1011	\| qualifier_cast_list cast_modifier type_qualifier_name
	1012	\| qualifier_cast_list cast_modifier MUTEX
	1013	;
	1014
	1015	cast_modifier:
	1016	'-'
	1017	\| '+'
	1018	;
	1019
[994d080]	1020	exponential_expression:
[4d51835]	1021	cast_expression
[994d080]	1022	\| exponential_expression '\\' cast_expression
[bb7422a]	1023	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1024	;
	1025
	1026	multiplicative_expression:
	1027	exponential_expression
	1028	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1029	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1030	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1031	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1032	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1033	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1034	;
[51b73452]	1035
	1036	additive_expression:
[4d51835]	1037	multiplicative_expression
	1038	\| additive_expression '+' multiplicative_expression
[bb7422a]	1039	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1040	\| additive_expression '-' multiplicative_expression
[bb7422a]	1041	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1042	;
[51b73452]	1043
	1044	shift_expression:
[4d51835]	1045	additive_expression
	1046	\| shift_expression LS additive_expression
[bb7422a]	1047	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1048	\| shift_expression RS additive_expression
[bb7422a]	1049	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1050	;
[51b73452]	1051
	1052	relational_expression:
[4d51835]	1053	shift_expression
	1054	\| relational_expression '<' shift_expression
[bb7422a]	1055	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1056	\| relational_expression '>' shift_expression
[bb7422a]	1057	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1058	\| relational_expression LE shift_expression
[bb7422a]	1059	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1060	\| relational_expression GE shift_expression
[bb7422a]	1061	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1062	;
[51b73452]	1063
	1064	equality_expression:
[4d51835]	1065	relational_expression
	1066	\| equality_expression EQ relational_expression
[bb7422a]	1067	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1068	\| equality_expression NE relational_expression
[bb7422a]	1069	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1070	;
[51b73452]	1071
	1072	AND_expression:
[4d51835]	1073	equality_expression
	1074	\| AND_expression '&' equality_expression
[bb7422a]	1075	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1076	;
[51b73452]	1077
	1078	exclusive_OR_expression:
[4d51835]	1079	AND_expression
	1080	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1081	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1082	;
[51b73452]	1083
	1084	inclusive_OR_expression:
[4d51835]	1085	exclusive_OR_expression
	1086	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1087	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1088	;
[51b73452]	1089
	1090	logical_AND_expression:
[4d51835]	1091	inclusive_OR_expression
	1092	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1093	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1094	;
[51b73452]	1095
	1096	logical_OR_expression:
[4d51835]	1097	logical_AND_expression
	1098	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1099	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1100	;
[51b73452]	1101
	1102	conditional_expression:
[4d51835]	1103	logical_OR_expression
	1104	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1105	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1106	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1107	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1108	;
[51b73452]	1109
	1110	constant_expression:
[4d51835]	1111	conditional_expression
	1112	;
[51b73452]	1113
	1114	assignment_expression:
[4d51835]	1115	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1116	conditional_expression
	1117	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1118	{
[25744d2]	1119	// if ( $2 == OperKinds::AtAssn ) {
	1120	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1121	// } else {
[bb7422a]	1122	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1123	// } // if
[9867cdb]	1124	}
[7fdb94e1]	1125	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1126	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1127	;
[51b73452]	1128
	1129	assignment_expression_opt:
[4d51835]	1130	// empty
[d1625f8]	1131	{ $$ = nullptr; }
[4d51835]	1132	\| assignment_expression
	1133	;
[b87a5ed]	1134
[9706554]	1135	assignment_operator:
[f9c3100]	1136	simple_assignment_operator
	1137	\| compound_assignment_operator
	1138	;
	1139
	1140	simple_assignment_operator:
[d9e2280]	1141	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1142	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1143	;
	1144
	1145	compound_assignment_operator:
	1146	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1147	\| MULTassign { $$ = OperKinds::MulAssn; }
	1148	\| DIVassign { $$ = OperKinds::DivAssn; }
	1149	\| MODassign { $$ = OperKinds::ModAssn; }
	1150	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1151	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1152	\| LSassign { $$ = OperKinds::LSAssn; }
	1153	\| RSassign { $$ = OperKinds::RSAssn; }
	1154	\| ANDassign { $$ = OperKinds::AndAssn; }
	1155	\| ERassign { $$ = OperKinds::ERAssn; }
	1156	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1157	;
[9706554]	1158
[b87a5ed]	1159	tuple: // CFA, tuple
[de62360d]	1160	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1161	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1162	// '[' ']'
	1163	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1164	// \| '[' push assignment_expression pop ']'
[1b29996]	1165	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1166	'[' ',' tuple_expression_list ']'
[b93c544]	1167	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1168	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1169	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1170	;
[51b73452]	1171
	1172	tuple_expression_list:
[0a6d8204]	1173	assignment_expression
	1174	\| '@' // CFA
	1175	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1176	\| tuple_expression_list ',' assignment_expression
[b93c544]	1177	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1178	\| tuple_expression_list ',' '@'
	1179	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1180	;
[51b73452]	1181
	1182	comma_expression:
[4d51835]	1183	assignment_expression
[9706554]	1184	\| comma_expression ',' assignment_expression
[bb7422a]	1185	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1186	;
[51b73452]	1187
	1188	comma_expression_opt:
[4d51835]	1189	// empty
[58dd019]	1190	{ $$ = nullptr; }
[4d51835]	1191	\| comma_expression
	1192	;
[51b73452]	1193
[e1d66c84]	1194	// ************************ STATEMENTS *****************************
[51b73452]	1195
	1196	statement:
[4d51835]	1197	labeled_statement
	1198	\| compound_statement
[c0a33d2]	1199	\| expression_statement
[4d51835]	1200	\| selection_statement
	1201	\| iteration_statement
	1202	\| jump_statement
[8b47e50]	1203	\| with_statement
[b6b3c42]	1204	\| mutex_statement
[5b2edbc]	1205	\| waitfor_statement
[9fd9d015]	1206	\| waituntil_statement
[11ab0b4a]	1207	\| corun_statement
	1208	\| cofor_statement
[4d51835]	1209	\| exception_statement
[2a8427c6]	1210	\| enable_disable_statement
[fae90d5f]	1211	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1212	\| asm_statement
[61fc4f6]	1213	\| DIRECTIVE
[bb7422a]	1214	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1215	;
[51b73452]	1216
	1217	labeled_statement:
[033ff37]	1218	// labels cannot be identifiers 0 or 1
[44a81853]	1219	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1220	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1221	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1222	{
[b1f2007d]	1223	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1224	"where a declaration, case, or default is not a statement.\n"
	1225	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1226	$$ = nullptr;
	1227	}
[4d51835]	1228	;
[51b73452]	1229
	1230	compound_statement:
[4d51835]	1231	'{' '}'
[bb7422a]	1232	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1233	\| '{' push
[5e25953]	1234	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1235	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1236	pop '}'
[bb7422a]	1237	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1238	;
[b87a5ed]	1239
[9bd6105]	1240	statement_decl_list: // C99
	1241	statement_decl
[35718a9]	1242	\| statement_decl_list statement_decl
[6d01d89]	1243	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1244	;
[51b73452]	1245
[9bd6105]	1246	statement_decl:
[4d51835]	1247	declaration // CFA, new & old style declarations
[e82aa9df]	1248	{ $$ = new StatementNode( $1 ); }
[4d51835]	1249	\| EXTENSION declaration // GCC
[6d01d89]	1250	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1251	\| function_definition
[e82aa9df]	1252	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1253	\| EXTENSION function_definition // GCC
[6d01d89]	1254	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1255	\| statement
[4d51835]	1256	;
[51b73452]	1257
[9bd6105]	1258	statement_list_nodecl:
[4d51835]	1259	statement
[9bd6105]	1260	\| statement_list_nodecl statement
[6d01d89]	1261	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1262	\| statement_list_nodecl error // invalid syntax rule
[7e13b11]	1263	{ SemanticError( yylloc, "syntax error, declarations only allowed at the start of the switch body,"
	1264	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1265	;
[51b73452]	1266
	1267	expression_statement:
[4d51835]	1268	comma_expression_opt ';'
[bb7422a]	1269	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1270	;
[51b73452]	1271
[7e13b11]	1272	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1273	// parenthesis:
	1274	//
[446740a]	1275	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1276	//
[7e13b11]	1277	// switch O { }
	1278	//
	1279	// O{} => object-constructor for conditional, switch body ???
	1280	// O{} => O for conditional followed by switch body
	1281	//
	1282	// C++ has this problem, as it has the same constructor syntax.
	1283	//
	1284	// switch sizeof ( T ) { }
	1285	//
	1286	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1287	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1288	//
	1289	// Note the two grammar rules for sizeof (alignof)
	1290	//
	1291	// \| SIZEOF unary_expression
	1292	// \| SIZEOF '(' type_no_function ')'
	1293	//
	1294	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1295
[51b73452]	1296	selection_statement:
[647e2ea]	1297	IF '(' conditional_declaration ')' statement %prec THEN
	1298	// explicitly deal with the shift/reduce conflict on if/else
	1299	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1300	\| IF '(' conditional_declaration ')' statement ELSE statement
	1301	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1302	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1303	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1304	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1305	{
[bb7422a]	1306	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1307	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1308	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1309	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1310	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1311	// statement.
[b93c544]	1312	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1313	}
[0442f93f]	1314	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1315	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1316	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1317	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1318	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1319	{
[bb7422a]	1320	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1321	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1322	}
[0442f93f]	1323	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[55266c7]	1324	{ SemanticError( yylloc, "syntax error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1325	;
[b87a5ed]	1326
[473d1da0]	1327	conditional_declaration:
[35718a9]	1328	comma_expression
[473d1da0]	1329	{ $$ = new CondCtl( nullptr, $1 ); }
[35718a9]	1330	\| c_declaration // no semi-colon
[473d1da0]	1331	{ $$ = new CondCtl( $1, nullptr ); }
[35718a9]	1332	\| cfa_declaration // no semi-colon
[473d1da0]	1333	{ $$ = new CondCtl( $1, nullptr ); }
[6d49ea3]	1334	\| declaration comma_expression // semi-colon separated
[473d1da0]	1335	{ $$ = new CondCtl( $1, $2 ); }
[9fd9d015]	1336	;
[936e9f4]	1337
[de62360d]	1338	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1339	// clause allows a list of values and subranges.
[b87a5ed]	1340
	1341	case_value: // CFA
[4d51835]	1342	constant_expression { $$ = $1; }
	1343	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1344	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1345	\| subrange // CFA, subrange
	1346	;
[b87a5ed]	1347
	1348	case_value_list: // CFA
[6611177]	1349	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1350	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1351	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1352	;
[b87a5ed]	1353
	1354	case_label: // CFA
[0442f93f]	1355	CASE error // invalid syntax rule
[55266c7]	1356	{ SemanticError( yylloc, "syntax error, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1357	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1358	\| CASE case_value_list error // invalid syntax rule
[55266c7]	1359	{ SemanticError( yylloc, "syntax error, colon missing after case list." ); $$ = nullptr; }
[6611177]	1360	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1361	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1362	\| DEFAULT error // invalid syntax rule
[55266c7]	1363	{ SemanticError( yylloc, "syntax error, colon missing after default." ); $$ = nullptr; }
[4d51835]	1364	;
[b87a5ed]	1365
	1366	case_label_list: // CFA
[4d51835]	1367	case_label
[6611177]	1368	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1369	;
[b87a5ed]	1370
	1371	case_clause: // CFA
[bb7422a]	1372	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1373	;
[b87a5ed]	1374
	1375	switch_clause_list_opt: // CFA
[4d51835]	1376	// empty
[58dd019]	1377	{ $$ = nullptr; }
[4d51835]	1378	\| switch_clause_list
	1379	;
[b87a5ed]	1380
	1381	switch_clause_list: // CFA
[9bd6105]	1382	case_label_list statement_list_nodecl
[bb7422a]	1383	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1384	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1385	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1386	;
[b87a5ed]	1387
[51b73452]	1388	iteration_statement:
[5695645]	1389	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[bb7422a]	1390	{ $$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1391	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1392	{
[bb7422a]	1393	$$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1394	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1395	}
[473d1da0]	1396	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1397	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1398	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1399	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1400	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1401	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1402	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1403	{
[bb7422a]	1404	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1405	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1406	}
	1407	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1408	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1409	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1410	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1411	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1412	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1413	\| FOR '(' ')' statement ELSE statement // CFA
	1414	{
[bb7422a]	1415	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1416	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1417	}
[efc8f3e]	1418	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1419	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1420	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1421	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1422	;
	1423
[6d01d89]	1424	for_control_expression_list:
	1425	for_control_expression
	1426	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1427	// ForCtrl + ForCtrl:
	1428	// init + init => multiple declaration statements that are hoisted
	1429	// condition + condition => (expression) && (expression)
	1430	// change + change => (expression), (expression)
	1431	{
	1432	$1->init->set_last( $3->init );
	1433	if ( $1->condition ) {
	1434	if ( $3->condition ) {
[bb7422a]	1435	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1436	} // if
	1437	} else $1->condition = $3->condition;
	1438	if ( $1->change ) {
	1439	if ( $3->change ) {
[bb7422a]	1440	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1441	} // if
	1442	} else $1->change = $3->change;
	1443	$$ = $1;
	1444	}
[6d01d89]	1445	;
	1446
[51b73452]	1447	for_control_expression:
[6d01d89]	1448	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1449	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1450	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1451	{
[bb7422a]	1452	StatementNode * init = $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr;
[1cdc052]	1453	$$ = new ForCtrl( init, $3, $5 );
	1454	}
[6d01d89]	1455	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1456	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1457
[aa122e9]	1458	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1459	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1460	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1461	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1462
[aa122e9]	1463	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1464	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1465	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1466	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1467
[aa122e9]	1468	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1469	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1470	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1471	{
[4fee301]	1472	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1473	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1474	}
[aa122e9]	1475	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1476	{
[4fee301]	1477	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1478	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1479	}
[aa122e9]	1480	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1481	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1482	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1483	{
[4fee301]	1484	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1485	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1486	}
[aa122e9]	1487	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1488	{
[4fee301]	1489	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1490	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1491	}
[65ef0cd]	1492	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1493	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1494	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1495	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1496	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1497	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1498	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1499	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1500	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1501	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1502
[f1aeede]	1503	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1504	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1505	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1506	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1507
[d78c238]	1508	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1509	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1510	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1511	{
[4fee301]	1512	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1513	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1514	}
[52be5948]	1515	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1516	{
[4fee301]	1517	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1518	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1519	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1520	}
[65ef0cd]	1521	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[55266c7]	1522	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1523
	1524	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1525	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1526	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1527	{
[4fee301]	1528	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1529	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1530	}
[52be5948]	1531	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1532	{
[4fee301]	1533	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1534	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1535	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1536	}
	1537	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1538	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1539	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1540	{
[4fee301]	1541	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1542	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1543	}
[52be5948]	1544	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1545	{
[4fee301]	1546	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1547	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1548	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1549	}
[dbedd71]	1550	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[55266c7]	1551	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1552
	1553	\| declaration comma_expression // CFA
[bb7422a]	1554	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1555	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1556	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1557
[d78c238]	1558	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1559	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1560	\| declaration '@' updowneq comma_expression // CFA
	1561	{
[4fee301]	1562	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1563	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1564	}
[52be5948]	1565	\| declaration comma_expression updowneq '@' // CFA
	1566	{
[4fee301]	1567	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1568	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1569	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1570	}
[d78c238]	1571
	1572	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1573	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1574	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1575	{
[4fee301]	1576	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1577	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1578	}
[52be5948]	1579	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1580	{
[4fee301]	1581	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1582	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1583	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1584	}
	1585	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1586	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1587	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1588	{
[4fee301]	1589	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1590	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1591	}
[52be5948]	1592	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1593	{
[4fee301]	1594	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1595	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1596	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1597	}
[65ef0cd]	1598	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[55266c7]	1599	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1600
[446740a]	1601	\| comma_expression ';' enum_key // CFA, enum type
[ca33b15]	1602	{
[d78c238]	1603	SemanticError( yylloc, "Type iterator is currently unimplemented." ); $$ = nullptr;
	1604	//$$ = forCtrl( new ExpressionNode( build_varref( $3 ) ), $1, nullptr, OperKinds::Range, nullptr, nullptr );
[ca33b15]	1605	}
[446740a]	1606	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1607	{
[55266c7]	1608	if ( $3 == OperKinds::LEThan \|\| $3 == OperKinds::GEThan ) {
[0442f93f]	1609	SemanticError( yylloc, "syntax error, all enumeration ranges are equal (all values). Remove \"=~\"." ); $$ = nullptr;
[55266c7]	1610	}
[d78c238]	1611	SemanticError( yylloc, "Type iterator is currently unimplemented." ); $$ = nullptr;
	1612	}
[9fd9d015]	1613	;
[98337569]	1614
[446740a]	1615	enum_key:
	1616	TYPEDEFname
[12f1156]	1617	\| ENUM identifier_or_type_name
[446740a]	1618	;
	1619
[d78c238]	1620	downupdowneq:
	1621	ErangeDown
	1622	{ $$ = OperKinds::GThan; }
	1623	\| ErangeUpEq
	1624	{ $$ = OperKinds::LEThan; }
	1625	\| ErangeDownEq
	1626	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1627	;
[51b73452]	1628
[d78c238]	1629	updown:
[cc22003]	1630	'~'
	1631	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1632	\| ErangeDown
	1633	{ $$ = OperKinds::GThan; }
[9fd9d015]	1634	;
[d78c238]	1635
	1636	updowneq:
	1637	updown
	1638	\| ErangeUpEq
	1639	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1640	\| ErangeDownEq
	1641	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1642	;
[cc22003]	1643
[51b73452]	1644	jump_statement:
[44a81853]	1645	GOTO identifier_or_type_name ';'
[bb7422a]	1646	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1647	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1648	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1649	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1650	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1651	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1652	\| fall_through_name ';' // CFA
[bb7422a]	1653	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1654	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1655	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1656	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1657	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1658	\| CONTINUE ';'
[de62360d]	1659	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1660	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1661	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1662	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1663	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1664	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1665	\| BREAK ';'
[de62360d]	1666	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1667	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1668	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1669	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1670	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1671	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1672	\| RETURN comma_expression_opt ';'
[bb7422a]	1673	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1674	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1675	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1676	\| SUSPEND ';'
[bb7422a]	1677	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1678	\| SUSPEND compound_statement
[bb7422a]	1679	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1680	\| SUSPEND COROUTINE ';'
[bb7422a]	1681	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1682	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1683	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1684	\| SUSPEND GENERATOR ';'
[bb7422a]	1685	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1686	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1687	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1688	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1689	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1690	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1691	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1692	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1693	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1694	;
[51b73452]	1695
[6a276a0]	1696	fall_through_name: // CFA
	1697	FALLTHRU
	1698	\| FALLTHROUGH
	1699	;
	1700
[8b47e50]	1701	with_statement:
[e78966e]	1702	WITH '(' type_list ')' statement // support scoped enumeration
[bb7422a]	1703	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1704	;
	1705
[bf20567]	1706	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1707	mutex_statement:
[bf20567]	1708	MUTEX '(' argument_expression_list_opt ')' statement
	1709	{
[55266c7]	1710	if ( ! $3 ) { SemanticError( yylloc, "syntax error, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1711	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1712	}
[b6b3c42]	1713	;
	1714
[51d6d6a]	1715	when_clause:
[6a276a0]	1716	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1717	;
	1718
[5b2edbc]	1719	when_clause_opt:
	1720	// empty
[135b431]	1721	{ $$ = nullptr; }
[51d6d6a]	1722	\| when_clause
[5b2edbc]	1723	;
	1724
[4a063df]	1725	cast_expression_list:
	1726	cast_expression
	1727	\| cast_expression_list ',' cast_expression
[a491a3c]	1728	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1729	;
	1730
	1731	timeout:
[9fd9d015]	1732	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1733	;
	1734
[9fd9d015]	1735	wor:
	1736	OROR
	1737	\| WOR
	1738
	1739	waitfor:
	1740	WAITFOR '(' cast_expression ')'
	1741	{ $$ = $3; }
	1742	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1743	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1744	;
	1745
[9fd9d015]	1746	wor_waitfor_clause:
[51d6d6a]	1747	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1748	// Called first: create header for WaitForStmt.
[bb7422a]	1749	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1750	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1751	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1752	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1753	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1754	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1755	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1756	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1757	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[55266c7]	1758	{ SemanticError( yylloc, "syntax error, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1759	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1760	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1761	;
	1762
	1763	waitfor_statement:
[9fd9d015]	1764	wor_waitfor_clause %prec THEN
	1765	{ $$ = new StatementNode( $1 ); }
	1766	;
	1767
	1768	wand:
	1769	ANDAND
	1770	\| WAND
	1771	;
	1772
	1773	waituntil:
[04c78215]	1774	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1775	{ $$ = $3; }
	1776	;
	1777
	1778	waituntil_clause:
	1779	when_clause_opt waituntil statement
[c86b08d]	1780	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1781	\| '(' wor_waituntil_clause ')'
[c86b08d]	1782	{ $$ = $2; }
[9fd9d015]	1783	;
	1784
	1785	wand_waituntil_clause:
	1786	waituntil_clause %prec THEN
[c86b08d]	1787	{ $$ = $1; }
[9fd9d015]	1788	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1789	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1790	;
	1791
	1792	wor_waituntil_clause:
	1793	wand_waituntil_clause
[c86b08d]	1794	{ $$ = $1; }
[70056ed]	1795	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1796	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1797	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1798	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1799	;
	1800
	1801	waituntil_statement:
	1802	wor_waituntil_clause %prec THEN
[f259682]	1803	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1804	;
	1805
[11ab0b4a]	1806	corun_statement:
	1807	CORUN statement
[eb779d5]	1808	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1809	;
	1810
	1811	cofor_statement:
	1812	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1813	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1814	;
	1815
[51b73452]	1816	exception_statement:
[bb7422a]	1817	TRY compound_statement handler_clause %prec THEN
	1818	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1819	\| TRY compound_statement finally_clause
[bb7422a]	1820	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1821	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1822	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1823	;
[51b73452]	1824
	1825	handler_clause:
[098f7ff]	1826	handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1827	{ $$ = new ClauseNode( build_catch( yylloc, $1, $4, $6, $8 ) ); }
[098f7ff]	1828	\| handler_clause handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1829	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $5, $7, $9 ) ) ); }
[994d080]	1830	;
	1831
	1832	handler_predicate_opt:
[7fdb94e1]	1833	// empty
[cbce272]	1834	{ $$ = nullptr; }
[6a276a0]	1835	\| ';' conditional_expression { $$ = $2; }
[307a732]	1836	;
	1837
	1838	handler_key:
[bb7422a]	1839	CATCH { $$ = ast::Terminate; }
	1840	\| RECOVER { $$ = ast::Terminate; }
	1841	\| CATCHRESUME { $$ = ast::Resume; }
	1842	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1843	;
[51b73452]	1844
	1845	finally_clause:
[6611177]	1846	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1847	;
[51b73452]	1848
	1849	exception_declaration:
[d0ffed1]	1850	// No SUE declaration in parameter list.
	1851	type_specifier_nobody
	1852	\| type_specifier_nobody declarator
[c0a33d2]	1853	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1854	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1855	{ $$ = $2->addType( $1 ); }
[033ff37]	1856	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1857	{ $$ = $1->addName( $2 ); }
[c0aa336]	1858	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1859	;
[51b73452]	1860
[2a8427c6]	1861	enable_disable_statement:
	1862	enable_disable_key identifier_list compound_statement
	1863	;
	1864
	1865	enable_disable_key:
	1866	ENABLE
	1867	\| DISABLE
	1868	;
	1869
[51b73452]	1870	asm_statement:
[ab57786]	1871	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1872	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1873	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1874	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1875	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1876	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1877	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1878	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1879	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1880	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1881	;
	1882
	1883	asm_volatile_opt: // GCC
	1884	// empty
	1885	{ $$ = false; }
	1886	\| VOLATILE
	1887	{ $$ = true; }
[4d51835]	1888	;
[b87a5ed]	1889
	1890	asm_operands_opt: // GCC
[4d51835]	1891	// empty
[58dd019]	1892	{ $$ = nullptr; } // use default argument
[4d51835]	1893	\| asm_operands_list
	1894	;
[b87a5ed]	1895
	1896	asm_operands_list: // GCC
[4d51835]	1897	asm_operand
	1898	\| asm_operands_list ',' asm_operand
[b93c544]	1899	{ $$ = $1->set_last( $3 ); }
[4d51835]	1900	;
[b87a5ed]	1901
	1902	asm_operand: // GCC
[ab57786]	1903	string_literal '(' constant_expression ')'
[32d6fdc]	1904	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1905	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1906	{
[32d6fdc]	1907	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1908	delete $2.str;
	1909	}
[7f5566b]	1910	;
	1911
[4e06c1e]	1912	asm_clobbers_list_opt: // GCC
[7f5566b]	1913	// empty
[58dd019]	1914	{ $$ = nullptr; } // use default argument
[ab57786]	1915	\| string_literal
[32d6fdc]	1916	{ $$ = $1; }
[ab57786]	1917	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1918	{ $$ = $1->set_last( $3 ); }
[4d51835]	1919	;
[b87a5ed]	1920
[7f5566b]	1921	label_list:
[033ff37]	1922	identifier
[ab57786]	1923	{
[bb7422a]	1924	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1925	delete $1; // allocated by lexer
	1926	}
[033ff37]	1927	\| label_list ',' identifier
[ab57786]	1928	{
[bb7422a]	1929	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1930	delete $3; // allocated by lexer
	1931	}
[4d51835]	1932	;
[51b73452]	1933
[e1d66c84]	1934	// **************************** DECLARATIONS *******************************
[51b73452]	1935
[b87a5ed]	1936	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1937	// empty
[58dd019]	1938	{ $$ = nullptr; }
[4d51835]	1939	\| declaration_list
	1940	;
[51b73452]	1941
	1942	declaration_list:
[4d51835]	1943	declaration
[647e2ea]	1944	\| declaration_list declaration
	1945	{ $$ = $1->set_last( $2 ); }
[4d51835]	1946	;
[51b73452]	1947
[407bde5]	1948	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1949	// empty
[58dd019]	1950	{ $$ = nullptr; }
[35718a9]	1951	\| KR_parameter_list
[4d51835]	1952	;
[51b73452]	1953
[35718a9]	1954	KR_parameter_list:
[c25f16b]	1955	c_declaration ';'
	1956	{ $$ = $1; }
	1957	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1958	{ $$ = $1->set_last( $2 ); }
[4d51835]	1959	;
[b87a5ed]	1960
[51b1202]	1961	local_label_declaration_opt: // GCC, local label
[4d51835]	1962	// empty
[51b1202]	1963	\| local_label_declaration_list
[4d51835]	1964	;
[b87a5ed]	1965
[51b1202]	1966	local_label_declaration_list: // GCC, local label
	1967	LABEL local_label_list ';'
	1968	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1969	;
[b87a5ed]	1970
[51b1202]	1971	local_label_list: // GCC, local label
[033ff37]	1972	identifier_or_type_name
	1973	\| local_label_list ',' identifier_or_type_name
[4d51835]	1974	;
[b87a5ed]	1975
[936e9f4]	1976	declaration: // old & new style declarations
[35718a9]	1977	c_declaration ';'
	1978	\| cfa_declaration ';' // CFA
[b47b827]	1979	\| static_assert // C11
[4d51835]	1980	;
[b87a5ed]	1981
[b9be000b]	1982	static_assert:
	1983	STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11
[32d6fdc]	1984	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b47b827]	1985	\| STATICASSERT '(' constant_expression ')' ';' // CFA
[bb7422a]	1986	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	1987
[de62360d]	1988	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1989	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1990	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1991	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1992	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1993	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1994	//
[b87a5ed]	1995	// CFA C
	1996	// [10] int x; int x[10]; // array of 10 integers
	1997	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1998
[c0aa336]	1999	cfa_declaration: // CFA
[4cc585b]	2000	cfa_variable_declaration
	2001	\| cfa_typedef_declaration
	2002	\| cfa_function_declaration
	2003	\| type_declaring_list
[2501ae5]	2004	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2005	\| trait_specifier
[4d51835]	2006	;
[b87a5ed]	2007
[c0aa336]	2008	cfa_variable_declaration: // CFA
	2009	cfa_variable_specifier initializer_opt
[7fdb94e1]	2010	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2011	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2012	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2013	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2014	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2015	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2016	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2017	;
[b87a5ed]	2018
[c0aa336]	2019	cfa_variable_specifier: // CFA
[de62360d]	2020	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2021	// storage-class
[c0aa336]	2022	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2023	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2024	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2025	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2026	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2027	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[2ab31fd]	2028
	2029	// [ int s, int t ]; // declare s and t
	2030	// [ int, int ] f();
	2031	// [] g( int );
	2032	// [ int x, int y ] = f(); // declare x and y, initialize each from f
	2033	// g( x + y );
	2034	\| cfa_function_return asm_name_opt
	2035	{ SemanticError( yylloc, "tuple-element declarations is currently unimplemented." ); $$ = nullptr; }
	2036	\| type_qualifier_list cfa_function_return asm_name_opt
	2037	{ SemanticError( yylloc, "tuple variable declaration is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2038	;
[b87a5ed]	2039
[c0aa336]	2040	cfa_function_declaration: // CFA
	2041	cfa_function_specifier
	2042	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2043	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2044	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2045	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2046	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2047	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2048	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2049	{
[481115f]	2050	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2051	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2052	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2053	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2054	}
	2055	;
[b87a5ed]	2056
[c0aa336]	2057	cfa_function_specifier: // CFA
[647e2ea]	2058	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2059	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2060	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2061	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2062	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2063	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2064
[2871210]	2065	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2066	//
[647e2ea]	2067	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2068	// '[' ']' type_specifier
	2069	//
[2871210]	2070	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2071	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2072	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2073	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2074	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2075	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2076	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2077	;
[b87a5ed]	2078
[c0aa336]	2079	cfa_function_return: // CFA
[c0a33d2]	2080	'[' push cfa_parameter_list pop ']'
	2081	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2082	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2083	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2084	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2085	;
[b87a5ed]	2086
[c0aa336]	2087	cfa_typedef_declaration: // CFA
	2088	TYPEDEF cfa_variable_specifier
[4d51835]	2089	{
[71a422a]	2090	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2091	$$ = $2->addTypedef();
	2092	}
[c0aa336]	2093	\| TYPEDEF cfa_function_specifier
[4d51835]	2094	{
[71a422a]	2095	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2096	$$ = $2->addTypedef();
	2097	}
[647e2ea]	2098	\| cfa_typedef_declaration ',' identifier
[4d51835]	2099	{
[647e2ea]	2100	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2101	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2102	}
	2103	;
[b87a5ed]	2104
[de62360d]	2105	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2106	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2107
	2108	typedef_declaration:
[4d51835]	2109	TYPEDEF type_specifier declarator
	2110	{
[71a422a]	2111	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2112	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2113	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2114	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2115	}
[c25f16b]	2116	\| typedef_declaration ',' declarator
[4d51835]	2117	{
[c25f16b]	2118	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2119	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2120	}
[de62360d]	2121	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2122	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2123	\| type_specifier TYPEDEF declarator
[ac235a8]	2124	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2125	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2126	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2127	;
[b87a5ed]	2128
[721f17a]	2129	typedef_expression:
[25744d2]	2130	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2131	TYPEDEF identifier '=' assignment_expression
[4d51835]	2132	{
[ac235a8]	2133	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2134	}
[c25f16b]	2135	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2136	{
[ac235a8]	2137	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2138	}
	2139	;
[51b73452]	2140
[c0aa336]	2141	c_declaration:
[4cc585b]	2142	declaration_specifier declaring_list
[7fdb94e1]	2143	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2144	\| typedef_declaration
[25744d2]	2145	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2146	\| sue_declaration_specifier
[0bcd707]	2147	{
	2148	assert( $1->type );
[1a73dbb]	2149	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[55266c7]	2150	SemanticError( yylloc, "syntax error, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2151	}
	2152	// enums are never empty declarations because there must have at least one enumeration.
	2153	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[55266c7]	2154	SemanticError( yylloc, "syntax error, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2155	}
	2156	}
[4d51835]	2157	;
[51b73452]	2158
	2159	declaring_list:
[de62360d]	2160	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2161	// storage-class
[1f771fc]	2162	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2163	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2164	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2165	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2166
	2167	\| general_function_declarator asm_name_opt
	2168	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2169	\| general_function_declarator asm_name_opt '=' VOID
	2170	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2171
[4d51835]	2172	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2173	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2174	;
[b87a5ed]	2175
[1f771fc]	2176	general_function_declarator:
	2177	function_type_redeclarator
	2178	\| function_declarator
	2179	;
	2180
[b87a5ed]	2181	declaration_specifier: // type specifier + storage class
[4d51835]	2182	basic_declaration_specifier
[84d58c5]	2183	\| type_declaration_specifier
[79a6b17]	2184	\| sue_declaration_specifier
[0442f93f]	2185	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2186	{
[b1f2007d]	2187	SemanticError( yylloc, "syntax error, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2188	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2189	$$ = nullptr;
	2190	}
	2191	;
	2192
	2193	invalid_types:
	2194	aggregate_key
	2195	\| basic_type_name
	2196	\| indirect_type
[4d51835]	2197	;
[b87a5ed]	2198
[d0ffed1]	2199	declaration_specifier_nobody: // type specifier + storage class - {...}
	2200	// Preclude SUE declarations in restricted scopes:
	2201	//
	2202	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2203	//
	2204	// because it is impossible to call f due to name equivalence.
	2205	basic_declaration_specifier
	2206	\| sue_declaration_specifier_nobody
[84d58c5]	2207	\| type_declaration_specifier
[d0ffed1]	2208	;
	2209
	2210	type_specifier: // type specifier
[4d51835]	2211	basic_type_specifier
	2212	\| sue_type_specifier
[84d58c5]	2213	\| type_type_specifier
[4d51835]	2214	;
[b87a5ed]	2215
[d0ffed1]	2216	type_specifier_nobody: // type specifier - {...}
	2217	// Preclude SUE declarations in restricted scopes:
	2218	//
	2219	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2220	//
	2221	// because it is impossible to call f due to name equivalence.
	2222	basic_type_specifier
	2223	\| sue_type_specifier_nobody
[84d58c5]	2224	\| type_type_specifier
[d0ffed1]	2225	;
	2226
[b87a5ed]	2227	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2228	// empty
[58dd019]	2229	{ $$ = nullptr; }
[4d51835]	2230	\| type_qualifier_list
	2231	;
[51b73452]	2232
	2233	type_qualifier_list:
[de62360d]	2234	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2235	//
[de62360d]	2236	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2237	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2238	// appeared only once.
[4d51835]	2239	type_qualifier
	2240	\| type_qualifier_list type_qualifier
	2241	{ $$ = $1->addQualifiers( $2 ); }
	2242	;
[51b73452]	2243
	2244	type_qualifier:
[4d51835]	2245	type_qualifier_name
[6cef439]	2246	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2247	\| attribute // trick handles most attribute locations
[4d51835]	2248	;
[51b73452]	2249
	2250	type_qualifier_name:
[4d51835]	2251	CONST
[6cef439]	2252	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2253	\| RESTRICT
[6cef439]	2254	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2255	\| VOLATILE
[6cef439]	2256	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2257	\| ATOMIC
[6cef439]	2258	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2259
[446740a]	2260	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2261	//
	2262	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2263	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2264	\| forall
[6cef439]	2265	{ $$ = build_forall( $1 ); }
[a16a7ec]	2266	;
	2267
	2268	forall:
[35718a9]	2269	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2270	{ $$ = $3; }
[4d51835]	2271	;
[51b73452]	2272
	2273	declaration_qualifier_list:
[4d51835]	2274	storage_class_list
[de62360d]	2275	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2276	{ $$ = $1->addQualifiers( $2 ); }
	2277	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2278	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2279	;
[51b73452]	2280
	2281	storage_class_list:
[de62360d]	2282	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2283	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2284	//
[de62360d]	2285	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2286	// specifiers in a declaration.
[4d51835]	2287	storage_class
	2288	\| storage_class_list storage_class
	2289	{ $$ = $1->addQualifiers( $2 ); }
	2290	;
[51b73452]	2291
	2292	storage_class:
[4d51835]	2293	EXTERN
[36e6f10]	2294	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2295	\| STATIC
[36e6f10]	2296	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2297	\| AUTO
[36e6f10]	2298	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2299	\| REGISTER
[36e6f10]	2300	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2301	\| THREADLOCALGCC // GCC
[36e6f10]	2302	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2303	\| THREADLOCALC11 // C11
[36e6f10]	2304	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2305	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2306	\| INLINE // C99
[36e6f10]	2307	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2308	\| FORTRAN // C99
[36e6f10]	2309	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2310	\| NORETURN // C11
[36e6f10]	2311	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2312	;
[51b73452]	2313
	2314	basic_type_name:
[6cef439]	2315	basic_type_name_type
	2316	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2317	;
	2318
	2319	// Just an intermediate value for conversion.
	2320	basic_type_name_type:
[201aeb9]	2321	VOID
[e048ece]	2322	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2323	\| BOOL // C99
[e048ece]	2324	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2325	\| CHAR
[e048ece]	2326	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2327	\| INT
[e048ece]	2328	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2329	\| INT128
[e048ece]	2330	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2331	\| UINT128
[e048ece]	2332	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2333	\| FLOAT
[e048ece]	2334	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2335	\| DOUBLE
[e048ece]	2336	{ $$ = build_basic_type( TypeData::Double ); }
[e15853c]	2337	\| uuFLOAT80
[e048ece]	2338	{ $$ = build_basic_type( TypeData::uuFloat80 ); }
[e15853c]	2339	\| uuFLOAT128
[e048ece]	2340	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[e15853c]	2341	\| uFLOAT16
[e048ece]	2342	{ $$ = build_basic_type( TypeData::uFloat16 ); }
[e15853c]	2343	\| uFLOAT32
[e048ece]	2344	{ $$ = build_basic_type( TypeData::uFloat32 ); }
[e15853c]	2345	\| uFLOAT32X
[e048ece]	2346	{ $$ = build_basic_type( TypeData::uFloat32x ); }
[e15853c]	2347	\| uFLOAT64
[e048ece]	2348	{ $$ = build_basic_type( TypeData::uFloat64 ); }
[e15853c]	2349	\| uFLOAT64X
[e048ece]	2350	{ $$ = build_basic_type( TypeData::uFloat64x ); }
[e15853c]	2351	\| uFLOAT128
[e048ece]	2352	{ $$ = build_basic_type( TypeData::uFloat128 ); }
[15f769c]	2353	\| DECIMAL32
	2354	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2355	\| DECIMAL64
	2356	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2357	\| DECIMAL128
	2358	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2359	\| COMPLEX // C99
[e048ece]	2360	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2361	\| IMAGINARY // C99
[e048ece]	2362	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2363	\| SIGNED
[e048ece]	2364	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2365	\| UNSIGNED
[e048ece]	2366	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2367	\| SHORT
[e048ece]	2368	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2369	\| LONG
[e048ece]	2370	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2371	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2372	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2373	\| AUTO_TYPE
[e048ece]	2374	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2375	\| vtable
	2376	;
	2377
	2378	vtable_opt:
	2379	// empty
	2380	{ $$ = nullptr; }
[9380add]	2381	\| vtable
[1f652a7]	2382	;
	2383
	2384	vtable:
[8f6f3729]	2385	VTABLE '(' type_name ')' default_opt
[6cef439]	2386	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2387	;
	2388
	2389	default_opt:
	2390	// empty
	2391	{ $$ = nullptr; }
	2392	\| DEFAULT
	2393	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2394	;
[51b73452]	2395
	2396	basic_declaration_specifier:
[4d51835]	2397	// A semantic check is necessary for conflicting storage classes.
	2398	basic_type_specifier
	2399	\| declaration_qualifier_list basic_type_specifier
	2400	{ $$ = $2->addQualifiers( $1 ); }
	2401	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2402	{ $$ = $1->addQualifiers( $2 ); }
	2403	\| basic_declaration_specifier storage_class type_qualifier_list
	2404	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2405	\| basic_declaration_specifier storage_class basic_type_specifier
	2406	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2407	;
[51b73452]	2408
	2409	basic_type_specifier:
[84d58c5]	2410	direct_type
[f38e7d7]	2411	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2412	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2413	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2414	;
[51b73452]	2415
[84d58c5]	2416	direct_type:
[4d51835]	2417	basic_type_name
	2418	\| type_qualifier_list basic_type_name
	2419	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2420	\| direct_type type_qualifier
[4d51835]	2421	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2422	\| direct_type basic_type_name
[4d51835]	2423	{ $$ = $1->addType( $2 ); }
	2424	;
[51b73452]	2425
[84d58c5]	2426	indirect_type:
[b6ad601]	2427	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2428	{ $$ = $3; }
[b6ad601]	2429	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2430	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2431	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2432	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2433	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2434	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2435	\| ZERO_T // CFA
[e048ece]	2436	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2437	\| ONE_T // CFA
[e048ece]	2438	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2439	;
[51b73452]	2440
[d0ffed1]	2441	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2442	sue_type_specifier
	2443	\| declaration_qualifier_list sue_type_specifier
	2444	{ $$ = $2->addQualifiers( $1 ); }
	2445	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2446	{ $$ = $1->addQualifiers( $2 ); }
	2447	\| sue_declaration_specifier storage_class type_qualifier_list
	2448	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2449	;
[51b73452]	2450
[d0ffed1]	2451	sue_type_specifier: // struct, union, enum + type specifier
	2452	elaborated_type
[fdca7c6]	2453	\| type_qualifier_list
	2454	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2455	elaborated_type
	2456	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2457	\| sue_type_specifier type_qualifier
[284da8c]	2458	{
	2459	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2460	$$ = $1->addQualifiers( $2 );
	2461	}
[4d51835]	2462	;
[51b73452]	2463
[d0ffed1]	2464	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2465	sue_type_specifier_nobody
	2466	\| declaration_qualifier_list sue_type_specifier_nobody
	2467	{ $$ = $2->addQualifiers( $1 ); }
	2468	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2469	{ $$ = $1->addQualifiers( $2 ); }
	2470	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2471	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2472	;
	2473
	2474	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2475	elaborated_type_nobody
	2476	\| type_qualifier_list elaborated_type_nobody
	2477	{ $$ = $2->addQualifiers( $1 ); }
	2478	\| sue_type_specifier_nobody type_qualifier
	2479	{ $$ = $1->addQualifiers( $2 ); }
	2480	;
	2481
[84d58c5]	2482	type_declaration_specifier:
	2483	type_type_specifier
	2484	\| declaration_qualifier_list type_type_specifier
[4d51835]	2485	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2486	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2487	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2488	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2489	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2490	;
[b87a5ed]	2491
[84d58c5]	2492	type_type_specifier: // typedef types
	2493	type_name
[6cef439]	2494	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2495	\| type_qualifier_list type_name
[6cef439]	2496	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2497	\| type_type_specifier type_qualifier
	2498	{ $$ = $1->addQualifiers( $2 ); }
	2499	;
	2500
	2501	type_name:
[4d51835]	2502	TYPEDEFname
[6cef439]	2503	{ $$ = build_typedef( $1 ); }
[84d58c5]	2504	\| '.' TYPEDEFname
[6cef439]	2505	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2506	\| type_name '.' TYPEDEFname
[6cef439]	2507	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2508	\| typegen_name
	2509	\| '.' typegen_name
[6cef439]	2510	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2511	\| type_name '.' typegen_name
[6cef439]	2512	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2513	;
	2514
	2515	typegen_name: // CFA
[65d6de4]	2516	TYPEGENname
[6cef439]	2517	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2518	\| TYPEGENname '(' ')'
[6cef439]	2519	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2520	\| TYPEGENname '(' type_list ')'
[6cef439]	2521	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2522	;
[51b73452]	2523
[d0ffed1]	2524	elaborated_type: // struct, union, enum
[c0aa336]	2525	aggregate_type
	2526	\| enum_type
[4d51835]	2527	;
[51b73452]	2528
[d0ffed1]	2529	elaborated_type_nobody: // struct, union, enum - {...}
	2530	aggregate_type_nobody
	2531	\| enum_type_nobody
	2532	;
	2533
[7e13b11]	2534	// ************************ AGGREGATE *****************************
	2535
[d0ffed1]	2536	aggregate_type: // struct, union
[fc20514]	2537	aggregate_key attribute_list_opt
	2538	{ forall = false; } // reset
	2539	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2540	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2541	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2542	{
[71a422a]	2543	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2544	forall = false; // reset
	2545	}
[284da8c]	2546	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2547	{
	2548	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2549	}
[f9c3100]	2550	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2551	{
[71a422a]	2552	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2553	forall = false; // reset
	2554	}
[284da8c]	2555	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2556	{
[6cef439]	2557	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2558	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2559	}
	2560	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2561	{
[71a422a]	2562	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2563	forall = false; // reset
	2564	}
	2565	'{' field_declaration_list_opt '}' type_parameters_opt
	2566	{
[6cef439]	2567	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2568	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2569	}
[d0ffed1]	2570	\| aggregate_type_nobody
	2571	;
	2572
[284da8c]	2573	type_parameters_opt:
	2574	// empty
	2575	{ $$ = nullptr; } %prec '}'
	2576	\| '(' type_list ')'
	2577	{ $$ = $2; }
	2578	;
	2579
[d0ffed1]	2580	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2581	aggregate_key attribute_list_opt identifier
[84d58c5]	2582	{
[71a422a]	2583	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2584	forall = false; // reset
[84d58c5]	2585	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2586	}
[73f04fd]	2587	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2588	{
[fc20514]	2589	forall = false; // reset
[65d6de4]	2590	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2591	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2592	// delete newFromTypeGen.
[6cef439]	2593	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2594	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2595	} else {
[6cef439]	2596	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2597	$3->symbolic.name = nullptr; // copied to $$
	2598	$3->symbolic.actuals = nullptr;
[9fa61f5]	2599	delete $3;
	2600	}
[65d6de4]	2601	}
[4d51835]	2602	;
[51b73452]	2603
	2604	aggregate_key:
[e307e12]	2605	aggregate_data
	2606	\| aggregate_control
	2607	;
	2608
	2609	aggregate_data:
[1f652a7]	2610	STRUCT vtable_opt
[bb7422a]	2611	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2612	\| UNION
[bb7422a]	2613	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2614	\| EXCEPTION // CFA
[bb7422a]	2615	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2616	;
	2617
	2618	aggregate_control: // CFA
[cbbd8fd7]	2619	MONITOR
[bb7422a]	2620	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2621	\| MUTEX STRUCT
[bb7422a]	2622	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2623	\| GENERATOR
[bb7422a]	2624	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2625	\| MUTEX GENERATOR
[bb7422a]	2626	{
	2627	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2628	$$ = ast::AggregateDecl::NoAggregate;
	2629	}
[d3bc0ad]	2630	\| COROUTINE
[bb7422a]	2631	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2632	\| MUTEX COROUTINE
[bb7422a]	2633	{
	2634	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2635	$$ = ast::AggregateDecl::NoAggregate;
	2636	}
[d3bc0ad]	2637	\| THREAD
[bb7422a]	2638	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2639	\| MUTEX THREAD
[bb7422a]	2640	{
	2641	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2642	$$ = ast::AggregateDecl::NoAggregate;
	2643	}
[4d51835]	2644	;
[51b73452]	2645
[7fdb94e1]	2646	field_declaration_list_opt:
[5d125e4]	2647	// empty
[58dd019]	2648	{ $$ = nullptr; }
[7fdb94e1]	2649	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2650	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2651	;
[51b73452]	2652
	2653	field_declaration:
[679e644]	2654	type_specifier field_declaring_list_opt ';'
[d8454b9]	2655	{
	2656	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2657	$$ = fieldDecl( $1, $2 );
	2658	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2659	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2660	// printf( "\tattr %s\n", attr->name.c_str() );
	2661	// } // for
	2662	}
[0442f93f]	2663	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2664	{
[b1f2007d]	2665	SemanticError( yylloc, "syntax error, expecting ';' at end of previous declaration." );
[55266c7]	2666	$$ = nullptr;
	2667	}
[679e644]	2668	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2669	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2670	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2671	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2672	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2673	{
[dea36ee]	2674	if ( ! $3 ) { // field declarator ?
	2675	$3 = DeclarationNode::newName( nullptr );
	2676	} // if
[679a260]	2677	$3->inLine = true;
[679e644]	2678	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2679	distInl( $3 );
[8f91c9ae]	2680	}
[e307e12]	2681	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2682	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2683	\| typedef_declaration ';' // CFA
	2684	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2685	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2686	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2687	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2688	{ $$ = $2; } // mark all fields in list
[46fa473]	2689	\| cfa_typedef_declaration ';' // CFA
[b47b827]	2690	\| static_assert // C11
[4d51835]	2691	;
[b87a5ed]	2692
[679e644]	2693	field_declaring_list_opt:
	2694	// empty
	2695	{ $$ = nullptr; }
[12f1156]	2696	\| field_declarator
	2697	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2698	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2699	;
[51b73452]	2700
[679e644]	2701	field_declarator:
[e07caa2]	2702	bit_subrange_size // C special case, no field name
[4d51835]	2703	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2704	\| variable_declarator bit_subrange_size_opt
[679e644]	2705	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2706	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2707	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2708	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2709	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2710	\| function_type_redeclarator bit_subrange_size_opt
	2711	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2712	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2713	;
	2714
[e07caa2]	2715	field_abstract_list_opt:
	2716	// empty
[dea36ee]	2717	{ $$ = nullptr; }
[e07caa2]	2718	\| field_abstract
	2719	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2720	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2721	;
	2722
[e07caa2]	2723	field_abstract:
[f7e4db27]	2724	// no bit fields
[e07caa2]	2725	variable_abstract_declarator
[679e644]	2726	;
	2727
	2728	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2729	// bit-fields are handled by C declarations
[033ff37]	2730	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2731	{ $$ = $1->addName( $2 ); }
[033ff37]	2732	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2733	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2734	;
	2735
	2736	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2737	// bit-fields are handled by C declarations
[679e644]	2738	cfa_abstract_declarator_tuple
	2739	\| cfa_field_abstract_list ','
[dc3fbe5]	2740	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2741	;
[51b73452]	2742
	2743	bit_subrange_size_opt:
[4d51835]	2744	// empty
[58dd019]	2745	{ $$ = nullptr; }
[4d51835]	2746	\| bit_subrange_size
	2747	;
[51b73452]	2748
	2749	bit_subrange_size:
[c786e1d]	2750	':' assignment_expression
[4d51835]	2751	{ $$ = $2; }
	2752	;
[51b73452]	2753
[7e13b11]	2754	// ************************ ENUMERATION *****************************
[647e2ea]	2755
[9e7236f4]	2756	enum_type:
[30aab55]	2757	// anonymous, no type name
	2758	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2759	{
	2760	if ( $3 == EnumHiding::Hide ) {
	2761	SemanticError( yylloc, "syntax error, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
	2762	} // if
	2763	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2764	}
[42422fb]	2765	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2766	{
[42422fb]	2767	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[55266c7]	2768	SemanticError( yylloc, "syntax error, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
	2769	}
[42422fb]	2770	if ( $4 == EnumHiding::Hide ) {
	2771	SemanticError( yylloc, "syntax error, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
	2772	} // if
	2773	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2774	}
[30aab55]	2775
[42422fb]	2776	// named type
[30aab55]	2777	\| ENUM attribute_list_opt identifier
	2778	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2779	hide_opt '{' enumerator_list comma_opt '}'
	2780	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2781	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2782	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2783	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2784	{
[42422fb]	2785	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[55266c7]	2786	SemanticError( yylloc, "syntax error, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
	2787	}
[42422fb]	2788	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2789	}
[c7f12a4]	2790	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2791	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2792	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2793	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2794
	2795	// forward declaration
[d0ffed1]	2796	\| enum_type_nobody
	2797	;
	2798
[42422fb]	2799	enumerator_type:
	2800	'(' ')' // pure enumeration
	2801	{ $$ = nullptr; }
	2802	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2803	{ $$ = $2; }
	2804	;
	2805
[c7f12a4]	2806	hide_opt:
	2807	// empty
[7cf8006]	2808	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2809	\| '!'
[7cf8006]	2810	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2811	;
	2812
[d0ffed1]	2813	enum_type_nobody: // enum - {...}
[f9c3100]	2814	ENUM attribute_list_opt identifier
[71a422a]	2815	{
	2816	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2817	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2818	}
[0bd46fd]	2819	\| ENUM attribute_list_opt type_name
[71a422a]	2820	{
[6cef439]	2821	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2822	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2823	}
[4d51835]	2824	;
[51b73452]	2825
	2826	enumerator_list:
[7cf8006]	2827	visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2828	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2829	\| INLINE type_name
[d9bad51]	2830	{
	2831	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2832	$2->symbolic.name = nullptr;
	2833	delete $2;
	2834	}
[7cf8006]	2835	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2836	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[85855b0]	2837	\| enumerator_list ',' INLINE type_name
	2838	{ $$ = $1->set_last( DeclarationNode::newEnumInLine( $4->symbolic.name ) ); }
[4d51835]	2839	;
[51b73452]	2840
[7cf8006]	2841	visible_hide_opt:
[c7f12a4]	2842	hide_opt
	2843	\| '^'
[7cf8006]	2844	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2845	;
	2846
[51b73452]	2847	enumerator_value_opt:
[4d51835]	2848	// empty
[58dd019]	2849	{ $$ = nullptr; }
[7991c7d]	2850	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2851	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2852	// \| simple_assignment_operator initializer
	2853	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2854	;
[51b73452]	2855
[7e13b11]	2856	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2857
	2858	parameter_list_ellipsis_opt:
	2859	// empty
	2860	{ $$ = nullptr; }
	2861	\| ELLIPSIS
	2862	{ $$ = nullptr; }
	2863	\| parameter_list
	2864	\| parameter_list ',' ELLIPSIS
	2865	{ $$ = $1->addVarArgs(); }
	2866	;
	2867
	2868	parameter_list: // abstract + real
	2869	parameter_declaration
	2870	\| abstract_parameter_declaration
	2871	\| parameter_list ',' parameter_declaration
	2872	{ $$ = $1->set_last( $3 ); }
	2873	\| parameter_list ',' abstract_parameter_declaration
	2874	{ $$ = $1->set_last( $3 ); }
	2875	;
	2876
	2877	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2878	// empty
[e048ece]	2879	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2880	\| ELLIPSIS
[58dd019]	2881	{ $$ = nullptr; }
[c0aa336]	2882	\| cfa_parameter_list
[647e2ea]	2883	\| cfa_abstract_parameter_list
	2884	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2885	{ $$ = $1->set_last( $3 ); }
	2886	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2887	{ $$ = $1->addVarArgs(); }
[647e2ea]	2888	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2889	{ $$ = $1->addVarArgs(); }
	2890	;
[b87a5ed]	2891
[c0aa336]	2892	cfa_parameter_list: // CFA
	2893	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2894	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2895	cfa_parameter_declaration
[647e2ea]	2896	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2897	{ $$ = $1->set_last( $3 ); }
	2898	\| cfa_parameter_list ',' cfa_parameter_declaration
	2899	{ $$ = $1->set_last( $3 ); }
	2900	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2901	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2902	;
[b87a5ed]	2903
[c0aa336]	2904	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2905	cfa_abstract_parameter_declaration
[647e2ea]	2906	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2907	{ $$ = $1->set_last( $3 ); }
[4d51835]	2908	;
[51b73452]	2909
[de62360d]	2910	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2911	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2912
[647e2ea]	2913	parameter_declaration:
	2914	// No SUE declaration in parameter list.
	2915	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2916	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2917	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2918	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2919	;
	2920
	2921	abstract_parameter_declaration:
	2922	declaration_specifier_nobody default_initializer_opt
	2923	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2924	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2925	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2926	;
	2927
[c0aa336]	2928	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2929	parameter_declaration
[5a51798]	2930	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2931	{ $$ = $1->addName( $2 ); }
[5a51798]	2932	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2933	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2934	{ $$ = $1->addName( $2 ); }
[5a51798]	2935	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2936	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2937	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2938	;
[b87a5ed]	2939
[c0aa336]	2940	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2941	abstract_parameter_declaration
[c0aa336]	2942	\| cfa_identifier_parameter_declarator_no_tuple
	2943	\| cfa_abstract_tuple
	2944	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2945	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2946	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2947	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2948	;
[51b73452]	2949
[c11e31c]	2950	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2951	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2952	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2953
[b87a5ed]	2954	identifier_list: // K&R-style parameter list => no types
[033ff37]	2955	identifier
[4d51835]	2956	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2957	\| identifier_list ',' identifier
[dc3fbe5]	2958	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	2959	;
[51b73452]	2960
[84d58c5]	2961	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2962	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	2963	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	2964	\| type_specifier abstract_declarator
[4d51835]	2965	{ $$ = $2->addType( $1 ); }
	2966	;
[b87a5ed]	2967
[84d58c5]	2968	type: // typeof, assertion
	2969	type_no_function
[c0aa336]	2970	\| cfa_abstract_function // CFA
[4d51835]	2971	;
[51b73452]	2972
	2973	initializer_opt:
[4d51835]	2974	// empty
[58dd019]	2975	{ $$ = nullptr; }
[f9c3100]	2976	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	2977	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	2978	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2979	;
[51b73452]	2980
	2981	initializer:
[de62360d]	2982	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	2983	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2984	;
[51b73452]	2985
[7fdb94e1]	2986	initializer_list_opt:
[097e2b0]	2987	// empty
[58dd019]	2988	{ $$ = nullptr; }
[097e2b0]	2989	\| initializer
[4d51835]	2990	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	2991	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	2992	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	2993	;
[b87a5ed]	2994
[de62360d]	2995	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	2996	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	2997	//
[b87a5ed]	2998	// int x[10] = { [1] = 3 };
[c11e31c]	2999	//
[de62360d]	3000	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	3001	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	3002	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	3003	// shift/reduce conflicts
[51b73452]	3004
	3005	designation:
[4d51835]	3006	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3007	\| identifier_at ':' // GCC, field name
[bb7422a]	3008	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3009	;
[51b73452]	3010
[b87a5ed]	3011	designator_list: // C99
[4d51835]	3012	designator
[2871210]	3013	\| designator_list designator
[b93c544]	3014	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3015	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3016	;
[51b73452]	3017
	3018	designator:
[e16eb460]	3019	'.' identifier_at // C99, field name
[bb7422a]	3020	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3021	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3022	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3023	{ $$ = $3; }
[c0a33d2]	3024	\| '[' push subrange pop ']' // CFA, multiple array elements
	3025	{ $$ = $3; }
	3026	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3027	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3028	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3029	{ $$ = $4; }
[4d51835]	3030	;
[51b73452]	3031
[de62360d]	3032	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3033	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3034	//
	3035	// Overloading: function, data, and operator identifiers may be overloaded.
	3036	//
[3ca7ef3]	3037	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3038	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3039	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3040	//
[de62360d]	3041	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3042	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3043	//
	3044	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3045	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3046	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3047	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3048	// on type arguments of polymorphic functions.
[c11e31c]	3049
[b87a5ed]	3050	type_parameter_list: // CFA
[67cf18c]	3051	type_parameter
	3052	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3053	{ $$ = $1->set_last( $3 ); }
[4d51835]	3054	;
[b87a5ed]	3055
[84d58c5]	3056	type_initializer_opt: // CFA
	3057	// empty
	3058	{ $$ = nullptr; }
	3059	\| '=' type
	3060	{ $$ = $2; }
	3061	;
	3062
[b87a5ed]	3063	type_parameter: // CFA
[033ff37]	3064	type_class identifier_or_type_name
[408ab79]	3065	{
[71a422a]	3066	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3067	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3068	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3069	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3070	}
[5a51798]	3071	type_initializer_opt assertion_list_opt
[67cf18c]	3072	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3073	\| identifier_or_type_name new_type_class
[71a422a]	3074	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3075	type_initializer_opt assertion_list_opt
	3076	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3077	\| '[' identifier_or_type_name ']'
[b66d14a]	3078	{
[71a422a]	3079	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3080	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3081	}
[5a51798]	3082	// \| type_specifier identifier_parameter_declarator
[9997fee]	3083	\| assertion_list
[bb7422a]	3084	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3085	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3086	{
	3087	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3088	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3089	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3090	}
[4d51835]	3091	;
[b87a5ed]	3092
[5a51798]	3093	new_type_class: // CFA
	3094	// empty
[bb7422a]	3095	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3096	\| '&'
[bb7422a]	3097	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3098	\| '*'
[7e13b11]	3099	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3100	// \| '(' '*' ')' // Gregor made me do it
	3101	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3102	\| ELLIPSIS
[bb7422a]	3103	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3104	;
	3105
[b87a5ed]	3106	type_class: // CFA
[4040425]	3107	OTYPE
[bb7422a]	3108	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3109	\| DTYPE
[bb7422a]	3110	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3111	\| FTYPE
[bb7422a]	3112	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3113	\| TTYPE
[bb7422a]	3114	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3115	;
[b87a5ed]	3116
	3117	assertion_list_opt: // CFA
[4d51835]	3118	// empty
[58dd019]	3119	{ $$ = nullptr; }
[9997fee]	3120	\| assertion_list
	3121	;
	3122
	3123	assertion_list: // CFA
	3124	assertion
	3125	\| assertion_list assertion
[dc3fbe5]	3126	{ $$ = $1->set_last( $2 ); }
[4d51835]	3127	;
[b87a5ed]	3128
	3129	assertion: // CFA
[033ff37]	3130	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3131	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[13e8427]	3132	\| '\|' '{' push trait_declaration_list pop '}'
[4d51835]	3133	{ $$ = $4; }
[35718a9]	3134	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3135	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3136	;
[b87a5ed]	3137
[84d58c5]	3138	type_list: // CFA
	3139	type
[bb7422a]	3140	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3141	\| assignment_expression
[84d58c5]	3142	\| type_list ',' type
[b93c544]	3143	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3144	\| type_list ',' assignment_expression
[b93c544]	3145	{ $$ = $1->set_last( $3 ); }
[4d51835]	3146	;
[b87a5ed]	3147
	3148	type_declaring_list: // CFA
[4040425]	3149	OTYPE type_declarator
[4d51835]	3150	{ $$ = $2; }
[4040425]	3151	\| storage_class_list OTYPE type_declarator
[4d51835]	3152	{ $$ = $3->addQualifiers( $1 ); }
	3153	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3154	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3155	;
[b87a5ed]	3156
	3157	type_declarator: // CFA
[4d51835]	3158	type_declarator_name assertion_list_opt
	3159	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3160	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3161	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3162	;
[b87a5ed]	3163
	3164	type_declarator_name: // CFA
[033ff37]	3165	identifier_or_type_name
[4d51835]	3166	{
[71a422a]	3167	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3168	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3169	}
[033ff37]	3170	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3171	{
[71a422a]	3172	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3173	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3174	}
	3175	;
[b87a5ed]	3176
[4040425]	3177	trait_specifier: // CFA
[033ff37]	3178	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3179	{
[3d937e2]	3180	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3181	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3182	}
	3183	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3184	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[033ff37]	3185	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' push trait_declaration_list pop '}'
[8a97248]	3186	{
[3d937e2]	3187	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3188	$$ = DeclarationNode::newTrait( $2, $4, $8 );
	3189	}
[7a24d76]	3190	\| forall TRAIT identifier_or_type_name '{' push trait_declaration_list pop '}' // alternate
	3191	{ $$ = DeclarationNode::newTrait( $3, $1, $6 ); }
[4d51835]	3192	;
[b87a5ed]	3193
[84d58c5]	3194	trait_declaration_list: // CFA
[4040425]	3195	trait_declaration
[13e8427]	3196	\| trait_declaration_list pop push trait_declaration
[dc3fbe5]	3197	{ $$ = $1->set_last( $4 ); }
[4d51835]	3198	;
[b87a5ed]	3199
[84d58c5]	3200	trait_declaration: // CFA
[13e8427]	3201	cfa_trait_declaring_list ';'
	3202	\| trait_declaring_list ';'
[4d51835]	3203	;
[b87a5ed]	3204
[c0aa336]	3205	cfa_trait_declaring_list: // CFA
	3206	cfa_variable_specifier
	3207	\| cfa_function_specifier
	3208	\| cfa_trait_declaring_list pop ',' push identifier_or_type_name
[dc3fbe5]	3209	{ $$ = $1->set_last( $1->cloneType( $5 ) ); }
[4d51835]	3210	;
[b87a5ed]	3211
[4040425]	3212	trait_declaring_list: // CFA
[4d51835]	3213	type_specifier declarator
[7fdb94e1]	3214	{ $$ = $2->addType( $1 ); }
[4040425]	3215	\| trait_declaring_list pop ',' push declarator
[dc3fbe5]	3216	{ $$ = $1->set_last( $1->cloneBaseType( $5 ) ); }
[4d51835]	3217	;
[51b73452]	3218
[e1d66c84]	3219	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3220
	3221	translation_unit:
[3d56d15b]	3222	// empty, input file
[4d51835]	3223	\| external_definition_list
[12f1156]	3224	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3225	;
[51b73452]	3226
	3227	external_definition_list:
[35718a9]	3228	push external_definition pop
	3229	{ $$ = $2; }
[fc20514]	3230	\| external_definition_list push external_definition pop
[dc3fbe5]	3231	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3232	;
[51b73452]	3233
	3234	external_definition_list_opt:
[4d51835]	3235	// empty
[58dd019]	3236	{ $$ = nullptr; }
[3d56d15b]	3237	\| external_definition_list
	3238	;
	3239
	3240	up:
[fc20514]	3241	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3242	;
	3243
	3244	down:
	3245	{ typedefTable.down(); }
[4d51835]	3246	;
[51b73452]	3247
	3248	external_definition:
[2d019af]	3249	DIRECTIVE
[bb7422a]	3250	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3251	\| declaration
[1a73dbb]	3252	{
	3253	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3254	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3255	// disallowed at the moment.
[4eb3a7c5]	3256	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3257	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3258	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3259	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3260	}
	3261	}
	3262	}
[996c8ed]	3263	\| IDENTIFIER IDENTIFIER
	3264	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3265	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3266	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3267	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3268	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3269	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3270	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3271	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3272	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3273	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3274	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3275	\| external_function_definition
[ecae5860]	3276	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3277	{
	3278	distExt( $2 ); // mark all fields in list
	3279	$$ = $2;
	3280	}
[e994912]	3281	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3282	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3283	\| EXTERN STRINGliteral
	3284	{
	3285	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3286	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3287	}
[ae2f2ae]	3288	up external_definition down
[aac37fa]	3289	{
	3290	linkage = linkageStack.top();
	3291	linkageStack.pop();
	3292	$$ = $5;
	3293	}
[c0aa336]	3294	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3295	{
[3b8e52c]	3296	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3297	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3298	}
[3d56d15b]	3299	'{' up external_definition_list_opt down '}'
[4d51835]	3300	{
	3301	linkage = linkageStack.top();
	3302	linkageStack.pop();
[3d56d15b]	3303	$$ = $6;
[8e9cbb2]	3304	}
[7e13b11]	3305	// global distribution
[9997fee]	3306	\| type_qualifier_list
	3307	{
[55266c7]	3308	if ( $1->type->qualifiers.any() ) {
	3309	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3310	}
[fc20514]	3311	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3312	}
	3313	'{' up external_definition_list_opt down '}' // CFA, namespace
	3314	{
[4c3ee8d]	3315	distQual( $5, $1 );
[9fd9d015]	3316	forall = false;
[3d56d15b]	3317	$$ = $5;
[9997fee]	3318	}
	3319	\| declaration_qualifier_list
	3320	{
[55266c7]	3321	if ( $1->type && $1->type->qualifiers.any() ) {
	3322	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3323	}
[fc20514]	3324	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3325	}
	3326	'{' up external_definition_list_opt down '}' // CFA, namespace
	3327	{
[4c3ee8d]	3328	distQual( $5, $1 );
[9fd9d015]	3329	forall = false;
[3d56d15b]	3330	$$ = $5;
[9997fee]	3331	}
	3332	\| declaration_qualifier_list type_qualifier_list
	3333	{
[55266c7]	3334	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
	3335	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3336	}
[b2ddaf3]	3337	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3338	}
[3d56d15b]	3339	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3340	{
[284da8c]	3341	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3342	forall = false;
[3d56d15b]	3343	$$ = $6;
[9997fee]	3344	}
[4d51835]	3345	;
	3346
	3347	external_function_definition:
	3348	function_definition
[de62360d]	3349	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3350	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3351	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3352	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3353	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3354	\| function_declarator compound_statement
[c0a33d2]	3355	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3356	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3357	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3358	;
[51b73452]	3359
[8b47e50]	3360	with_clause_opt:
	3361	// empty
[9997fee]	3362	{ $$ = nullptr; forall = false; }
[e78966e]	3363	\| WITH '(' type_list ')' attribute_list_opt // support scoped enumeration
[d8454b9]	3364	{
	3365	$$ = $3; forall = false;
	3366	if ( $5 ) {
[55266c7]	3367	SemanticError( yylloc, "syntax error, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3368	$$ = nullptr;
	3369	} // if
	3370	}
[8b47e50]	3371	;
	3372
[51b73452]	3373	function_definition:
[8b47e50]	3374	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3375	{
[481115f]	3376	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3377	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3378	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3379	$$ = $1;
[4d51835]	3380	}
[8b47e50]	3381	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3382	{
[c38ae92]	3383	rebindForall( $1, $2 );
[7fdb94e1]	3384	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3385	}
[1f771fc]	3386	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3387	{
	3388	rebindForall( $1, $2 );
[5fcba14]	3389	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3390	}
[a16a7ec]	3391	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3392	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3393	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3394	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3395	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3396	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3397	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3398	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3399	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3400
	3401	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3402	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3403	{
[c38ae92]	3404	rebindForall( $1, $2 );
[5fcba14]	3405	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3406	}
[a16a7ec]	3407	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3408	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3409	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3410	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3411	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3412	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3413	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3414	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3415	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3416	;
[51b73452]	3417
	3418	declarator:
[4d51835]	3419	variable_declarator
[c6b1105]	3420	\| variable_type_redeclarator
[4d51835]	3421	\| function_declarator
[1f771fc]	3422	\| function_type_redeclarator
[4d51835]	3423	;
[51b73452]	3424
	3425	subrange:
[4d51835]	3426	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3427	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3428	;
[b87a5ed]	3429
[7e13b11]	3430	// ************************** ASM ***************************
	3431
[b87a5ed]	3432	asm_name_opt: // GCC
[4d51835]	3433	// empty
[58dd019]	3434	{ $$ = nullptr; }
	3435	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3436	{
	3437	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3438	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3439	$$ = name->addQualifiers( $5 );
	3440	}
[4d51835]	3441	;
[b87a5ed]	3442
[7e13b11]	3443	// ************************** ATTRIBUTE ***************************
	3444
[b87a5ed]	3445	attribute_list_opt: // GCC
[4d51835]	3446	// empty
[58dd019]	3447	{ $$ = nullptr; }
[4d51835]	3448	\| attribute_list
	3449	;
[b87a5ed]	3450
	3451	attribute_list: // GCC
[4d51835]	3452	attribute
	3453	\| attribute_list attribute
[1db21619]	3454	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3455	;
[b87a5ed]	3456
	3457	attribute: // GCC
[44a81853]	3458	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3459	{ $$ = $4; }
[647e2ea]	3460	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3461	{ $$ = $3; }
	3462	\| ATTR '(' attribute_name_list ')' // CFA
	3463	{ $$ = $3; }
[4d51835]	3464	;
[b87a5ed]	3465
[44a81853]	3466	attribute_name_list: // GCC
	3467	attribute_name
	3468	\| attribute_name_list ',' attribute_name
[c0aa336]	3469	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3470	;
[b87a5ed]	3471
[44a81853]	3472	attribute_name: // GCC
[4d51835]	3473	// empty
[44a81853]	3474	{ $$ = nullptr; }
	3475	\| attr_name
	3476	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3477	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3478	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3479	;
[b87a5ed]	3480
[44a81853]	3481	attr_name: // GCC
[12f1156]	3482	identifier_or_type_name
[114014c]	3483	\| FALLTHROUGH
	3484	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3485	\| CONST
[9ff56e7]	3486	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3487	;
[51b73452]	3488
[c11e31c]	3489	// ============================================================================
[de62360d]	3490	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3491	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3492	// in:
[c11e31c]	3493	//
[b87a5ed]	3494	// int (*f())[10] { ... };
	3495	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3496	//
[de62360d]	3497	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3498	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3499	// ============================================================================
	3500
	3501	// ----------------------------------------------------------------------------
[de62360d]	3502	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3503	// to define a variable or function prototype, e.g.:
[c11e31c]	3504	//
[b87a5ed]	3505	// valid declaration invalid definition
	3506	// ----------------- ------------------
[4d51835]	3507	// int f; int f {}
	3508	// int f; int f {}
[b87a5ed]	3509	// int f[10]; int f[10] {}
[4d51835]	3510	// int (f)(int); int (f)(int) {}
[c11e31c]	3511	//
[de62360d]	3512	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3513	// variable_declarator and function_declarator.
[c11e31c]	3514	// ----------------------------------------------------------------------------
	3515
[de62360d]	3516	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3517	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3518
[5e25953]	3519	paren_identifier:
[e16eb460]	3520	identifier_at
[5e25953]	3521	{ $$ = DeclarationNode::newName( $1 ); }
	3522	\| '(' paren_identifier ')' // redundant parenthesis
	3523	{ $$ = $2; }
	3524	;
	3525
[51b73452]	3526	variable_declarator:
[4d51835]	3527	paren_identifier attribute_list_opt
[1db21619]	3528	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3529	\| variable_ptr
	3530	\| variable_array attribute_list_opt
[1db21619]	3531	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3532	\| variable_function attribute_list_opt
[1db21619]	3533	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3534	;
[51b73452]	3535
	3536	variable_ptr:
[dd51906]	3537	ptrref_operator variable_declarator
[a5f9444]	3538	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3539	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3540	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3541	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3542	{ $$ = $2->addQualifiers( $4 ); }
	3543	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3544	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3545	;
[51b73452]	3546
	3547	variable_array:
[4d51835]	3548	paren_identifier array_dimension
	3549	{ $$ = $1->addArray( $2 ); }
	3550	\| '(' variable_ptr ')' array_dimension
	3551	{ $$ = $2->addArray( $4 ); }
[5e25953]	3552	\| '(' attribute_list variable_ptr ')' array_dimension
	3553	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3554	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3555	{ $$ = $2->addArray( $4 ); }
[5e25953]	3556	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3557	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3558	\| '(' variable_array ')' // redundant parenthesis
	3559	{ $$ = $2; }
[5e25953]	3560	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3561	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3562	;
[51b73452]	3563
	3564	variable_function:
[647e2ea]	3565	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3566	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3567	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3568	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3569	\| '(' variable_function ')' // redundant parenthesis
	3570	{ $$ = $2; }
[5e25953]	3571	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3572	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3573	;
[51b73452]	3574
[c6b1105]	3575	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3576	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3577	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3578
	3579	function_declarator:
[4d51835]	3580	function_no_ptr attribute_list_opt
[1db21619]	3581	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3582	\| function_ptr
	3583	\| function_array attribute_list_opt
[1db21619]	3584	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3585	;
[51b73452]	3586
	3587	function_no_ptr:
[647e2ea]	3588	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3589	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3590	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3591	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3592	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3593	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3594	\| '(' function_no_ptr ')' // redundant parenthesis
	3595	{ $$ = $2; }
[5e25953]	3596	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3597	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3598	;
[51b73452]	3599
	3600	function_ptr:
[dd51906]	3601	ptrref_operator function_declarator
[a5f9444]	3602	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3603	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3604	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3605	\| '(' function_ptr ')' attribute_list_opt
	3606	{ $$ = $2->addQualifiers( $4 ); }
	3607	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3608	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3609	;
[51b73452]	3610
	3611	function_array:
[4d51835]	3612	'(' function_ptr ')' array_dimension
	3613	{ $$ = $2->addArray( $4 ); }
[5e25953]	3614	\| '(' attribute_list function_ptr ')' array_dimension
	3615	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3616	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3617	{ $$ = $2->addArray( $4 ); }
[5e25953]	3618	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3619	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3620	\| '(' function_array ')' // redundant parenthesis
	3621	{ $$ = $2; }
[5e25953]	3622	\| '(' attribute_list function_array ')' // redundant parenthesis
	3623	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3624	;
[51b73452]	3625
[c0aa336]	3626	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3627	//
	3628	// f( a, b, c ) int a, *b, c[]; {}
	3629	//
	3630	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3631	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3632
[c0aa336]	3633	KR_function_declarator:
	3634	KR_function_no_ptr
	3635	\| KR_function_ptr
	3636	\| KR_function_array
[4d51835]	3637	;
[51b73452]	3638
[c0aa336]	3639	KR_function_no_ptr:
[4d51835]	3640	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3641	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3642	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3643	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3644	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3645	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3646	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3647	{ $$ = $2; }
[5e25953]	3648	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3649	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3650	;
[51b73452]	3651
[c0aa336]	3652	KR_function_ptr:
	3653	ptrref_operator KR_function_declarator
[a5f9444]	3654	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3655	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3656	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3657	\| '(' KR_function_ptr ')'
[4d51835]	3658	{ $$ = $2; }
[5e25953]	3659	\| '(' attribute_list KR_function_ptr ')'
	3660	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3661	;
[51b73452]	3662
[c0aa336]	3663	KR_function_array:
	3664	'(' KR_function_ptr ')' array_dimension
[4d51835]	3665	{ $$ = $2->addArray( $4 ); }
[5e25953]	3666	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3667	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3668	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3669	{ $$ = $2->addArray( $4 ); }
[5e25953]	3670	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3671	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3672	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3673	{ $$ = $2; }
[5e25953]	3674	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3675	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3676	;
[51b73452]	3677
[1f771fc]	3678	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3679	//
[b87a5ed]	3680	// typedef int foo;
	3681	// {
	3682	// int foo; // redefine typedef name in new scope
	3683	// }
[51b73452]	3684
[2871210]	3685	paren_type:
[f9c3100]	3686	typedef_name
[c4f68dc]	3687	{
[f9c3100]	3688	// hide type name in enclosing scope by variable name
[71a422a]	3689	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3690	}
[2871210]	3691	\| '(' paren_type ')'
[4d51835]	3692	{ $$ = $2; }
	3693	;
[51b73452]	3694
[5e25953]	3695	variable_type_redeclarator:
	3696	paren_type attribute_list_opt
	3697	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3698	\| variable_type_ptr
	3699	\| variable_type_array attribute_list_opt
[5e25953]	3700	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3701	\| variable_type_function attribute_list_opt
[5e25953]	3702	{ $$ = $1->addQualifiers( $2 ); }
	3703	;
	3704
[1f771fc]	3705	variable_type_ptr:
[c6b1105]	3706	ptrref_operator variable_type_redeclarator
[a5f9444]	3707	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3708	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3709	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3710	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3711	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3712	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3713	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3714	;
[51b73452]	3715
[1f771fc]	3716	variable_type_array:
[2871210]	3717	paren_type array_dimension
[4d51835]	3718	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3719	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3720	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3721	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3722	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3723	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3724	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3725	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3726	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3727	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3728	{ $$ = $2; }
[1f771fc]	3729	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3730	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3731	;
[51b73452]	3732
[1f771fc]	3733	variable_type_function:
[647e2ea]	3734	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3735	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3736	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3737	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3738	\| '(' variable_type_function ')' // redundant parenthesis
	3739	{ $$ = $2; }
	3740	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3741	{ $$ = $3->addQualifiers( $2 ); }
	3742	;
	3743
	3744	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3745	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3746	// arrays and functions.
	3747
	3748	function_type_redeclarator:
	3749	function_type_no_ptr attribute_list_opt
	3750	{ $$ = $1->addQualifiers( $2 ); }
	3751	\| function_type_ptr
	3752	\| function_type_array attribute_list_opt
	3753	{ $$ = $1->addQualifiers( $2 ); }
	3754	;
	3755
	3756	function_type_no_ptr:
[647e2ea]	3757	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3758	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3759	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3760	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3761	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3762	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3763	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3764	{ $$ = $2; }
[1f771fc]	3765	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3766	{ $$ = $3->addQualifiers( $2 ); }
	3767	;
	3768
	3769	function_type_ptr:
	3770	ptrref_operator function_type_redeclarator
	3771	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3772	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3773	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3774	\| '(' function_type_ptr ')' attribute_list_opt
	3775	{ $$ = $2->addQualifiers( $4 ); }
	3776	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3777	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3778	;
	3779
	3780	function_type_array:
	3781	'(' function_type_ptr ')' array_dimension
	3782	{ $$ = $2->addArray( $4 ); }
	3783	\| '(' attribute_list function_type_ptr ')' array_dimension
	3784	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3785	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3786	{ $$ = $2->addArray( $4 ); }
	3787	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3788	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3789	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3790	{ $$ = $2; }
[1f771fc]	3791	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3792	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3793	;
[51b73452]	3794
[c0aa336]	3795	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3796	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3797	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3798	// pointers to arrays and functions.
[51b73452]	3799
	3800	identifier_parameter_declarator:
[4d51835]	3801	paren_identifier attribute_list_opt
[1db21619]	3802	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3803	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3804	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3805	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3806	\| identifier_parameter_ptr
	3807	\| identifier_parameter_array attribute_list_opt
[1db21619]	3808	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3809	\| identifier_parameter_function attribute_list_opt
[1db21619]	3810	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3811	;
[51b73452]	3812
	3813	identifier_parameter_ptr:
[dd51906]	3814	ptrref_operator identifier_parameter_declarator
[a5f9444]	3815	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3816	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3817	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3818	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3819	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3820	;
[51b73452]	3821
	3822	identifier_parameter_array:
[4d51835]	3823	paren_identifier array_parameter_dimension
	3824	{ $$ = $1->addArray( $2 ); }
	3825	\| '(' identifier_parameter_ptr ')' array_dimension
	3826	{ $$ = $2->addArray( $4 ); }
	3827	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3828	{ $$ = $2->addArray( $4 ); }
	3829	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3830	{ $$ = $2; }
	3831	;
[51b73452]	3832
	3833	identifier_parameter_function:
[647e2ea]	3834	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3835	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3836	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3837	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3838	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3839	{ $$ = $2; }
	3840	;
[b87a5ed]	3841
[de62360d]	3842	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3843	// e.g.:
[c11e31c]	3844	//
[b87a5ed]	3845	// typedef int foo;
[114014c]	3846	// forall( otype T ) struct foo;
[b87a5ed]	3847	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3848	//
[c0aa336]	3849	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3850
[2871210]	3851	type_parameter_redeclarator:
[f9c3100]	3852	typedef_name attribute_list_opt
[1db21619]	3853	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3854	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3855	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3856	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3857	\| type_parameter_ptr
	3858	\| type_parameter_array attribute_list_opt
[1db21619]	3859	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3860	\| type_parameter_function attribute_list_opt
[1db21619]	3861	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3862	;
[51b73452]	3863
[f9c3100]	3864	typedef_name:
[4d51835]	3865	TYPEDEFname
[7fdb94e1]	3866	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3867	\| TYPEGENname
[7fdb94e1]	3868	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3869	;
[51b73452]	3870
[2871210]	3871	type_parameter_ptr:
[dd51906]	3872	ptrref_operator type_parameter_redeclarator
[a5f9444]	3873	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3874	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3875	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3876	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3877	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3878	;
[51b73452]	3879
[2871210]	3880	type_parameter_array:
[f9c3100]	3881	typedef_name array_parameter_dimension
[4d51835]	3882	{ $$ = $1->addArray( $2 ); }
[2871210]	3883	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3884	{ $$ = $2->addArray( $4 ); }
	3885	;
[51b73452]	3886
[2871210]	3887	type_parameter_function:
[7e13b11]	3888	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3889	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3890	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3891	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3892	;
[b87a5ed]	3893
[de62360d]	3894	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3895	// which the type applies, e.g.:
[c11e31c]	3896	//
[b87a5ed]	3897	// sizeof( int );
[c0aa336]	3898	// sizeof( int * );
[b87a5ed]	3899	// sizeof( int [10] );
[c0aa336]	3900	// sizeof( int (*)() );
	3901	// sizeof( int () );
[c11e31c]	3902	//
[de62360d]	3903	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3904	// and functions versus pointers to arrays and functions.
[51b73452]	3905
	3906	abstract_declarator:
[4d51835]	3907	abstract_ptr
	3908	\| abstract_array attribute_list_opt
[1db21619]	3909	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3910	\| abstract_function attribute_list_opt
[1db21619]	3911	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3912	;
[51b73452]	3913
	3914	abstract_ptr:
[dd51906]	3915	ptrref_operator
[a5f9444]	3916	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3917	\| ptrref_operator type_qualifier_list
[ce8c12f]	3918	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3919	\| ptrref_operator abstract_declarator
[a5f9444]	3920	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3921	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3922	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3923	\| '(' abstract_ptr ')' attribute_list_opt
	3924	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3925	;
[51b73452]	3926
	3927	abstract_array:
[4d51835]	3928	array_dimension
	3929	\| '(' abstract_ptr ')' array_dimension
	3930	{ $$ = $2->addArray( $4 ); }
	3931	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3932	{ $$ = $2->addArray( $4 ); }
	3933	\| '(' abstract_array ')' // redundant parenthesis
	3934	{ $$ = $2; }
	3935	;
[51b73452]	3936
	3937	abstract_function:
[7e13b11]	3938	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3939	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3940	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3941	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3942	\| '(' abstract_function ')' // redundant parenthesis
	3943	{ $$ = $2; }
	3944	;
[51b73452]	3945
	3946	array_dimension:
[4d51835]	3947	// Only the first dimension can be empty.
[2871210]	3948	'[' ']'
[a5f9444]	3949	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	3950	\| '[' ']' multi_array_dimension
[a5f9444]	3951	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	3952	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	3953	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	3954	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	3955	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	3956
	3957	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	3958	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	3959
[d41735a]	3960	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	3961	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	3962	\| multi_array_dimension
	3963	;
[51b73452]	3964
[647e2ea]	3965	// array_dimension_list:
	3966	// assignment_expression
	3967	// \| array_dimension_list ',' assignment_expression
	3968	// ;
	3969
[d41735a]	3970	array_type_list:
	3971	basic_type_name
[bb7422a]	3972	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3973	\| type_name
[bb7422a]	3974	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3975	\| assignment_expression upupeq assignment_expression
	3976	\| array_type_list ',' basic_type_name
[b93c544]	3977	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	3978	\| array_type_list ',' type_name
[b93c544]	3979	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	3980	\| array_type_list ',' assignment_expression upupeq assignment_expression
	3981	;
	3982
	3983	upupeq:
	3984	'~'
	3985	{ $$ = OperKinds::LThan; }
	3986	\| ErangeUpEq
	3987	{ $$ = OperKinds::LEThan; }
[9fd9d015]	3988	;
[d41735a]	3989
[51b73452]	3990	multi_array_dimension:
[c0a33d2]	3991	'[' push assignment_expression pop ']'
[a5f9444]	3992	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	3993	\| '[' push '*' pop ']' // C99
[4d51835]	3994	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	3995	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	3996	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	3997	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	3998	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	3999	;
[51b73452]	4000
[c11e31c]	4001	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	4002	// identifier to which the type applies, e.g.:
	4003	//
[c0aa336]	4004	// int f( int ); // not handled here
	4005	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4006	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4007	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4008	//
[de62360d]	4009	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[c0aa336]	4010	// and functions versus pointers to arrays and functions. In addition, the pattern handles the
	4011	// special meaning of parenthesis around a typedef name:
	4012	//
	4013	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4014	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4015	// not as redundant parentheses around the identifier."
	4016	//
	4017	// For example:
	4018	//
	4019	// typedef float T;
	4020	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4021	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4022	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4023	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4024	//
	4025	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4026	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4027	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4028	// functions.
[51b73452]	4029
[59c7e3e]	4030	abstract_parameter_declarator_opt:
	4031	// empty
	4032	{ $$ = nullptr; }
	4033	\| abstract_parameter_declarator
	4034	;
	4035
[51b73452]	4036	abstract_parameter_declarator:
[4d51835]	4037	abstract_parameter_ptr
[b6b3c42]	4038	\| '&' MUTEX attribute_list_opt
[446740a]	4039	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4040	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4041	\| abstract_parameter_array attribute_list_opt
[1db21619]	4042	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4043	\| abstract_parameter_function attribute_list_opt
[1db21619]	4044	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4045	;
[51b73452]	4046
	4047	abstract_parameter_ptr:
[dd51906]	4048	ptrref_operator
[ce8c12f]	4049	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4050	\| ptrref_operator type_qualifier_list
[ce8c12f]	4051	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4052	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4053	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4054	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4055	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4056	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4057	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4058	;
[51b73452]	4059
	4060	abstract_parameter_array:
[4d51835]	4061	array_parameter_dimension
	4062	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4063	{ $$ = $2->addArray( $4 ); }
	4064	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4065	{ $$ = $2->addArray( $4 ); }
	4066	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4067	{ $$ = $2; }
	4068	;
[51b73452]	4069
	4070	abstract_parameter_function:
[7e13b11]	4071	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4072	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4073	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4074	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4075	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4076	{ $$ = $2; }
	4077	;
[51b73452]	4078
	4079	array_parameter_dimension:
[4d51835]	4080	// Only the first dimension can be empty or have qualifiers.
	4081	array_parameter_1st_dimension
	4082	\| array_parameter_1st_dimension multi_array_dimension
	4083	{ $$ = $1->addArray( $2 ); }
	4084	\| multi_array_dimension
	4085	;
[51b73452]	4086
[c11e31c]	4087	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4088	//
[de62360d]	4089	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4090	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4091
	4092	array_parameter_1st_dimension:
[2871210]	4093	'[' ']'
[a5f9444]	4094	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4095	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4096	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4097	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4098	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4099	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4100	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4101	\| '[' push type_qualifier_list assignment_expression pop ']'
	4102	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4103	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4104	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4105	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4106	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4107	;
[b87a5ed]	4108
[c0aa336]	4109	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4110	//
[71a422a]	4111	// struct S {
	4112	// int;
	4113	// int *;
	4114	// int [10];
	4115	// int (*)();
	4116	// };
[51b73452]	4117
	4118	variable_abstract_declarator:
[4d51835]	4119	variable_abstract_ptr
	4120	\| variable_abstract_array attribute_list_opt
[1db21619]	4121	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4122	\| variable_abstract_function attribute_list_opt
[1db21619]	4123	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4124	;
[51b73452]	4125
	4126	variable_abstract_ptr:
[dd51906]	4127	ptrref_operator
[a5f9444]	4128	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4129	\| ptrref_operator type_qualifier_list
[ce8c12f]	4130	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4131	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4132	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4133	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4134	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4135	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4136	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4137	;
[51b73452]	4138
	4139	variable_abstract_array:
[4d51835]	4140	array_dimension
	4141	\| '(' variable_abstract_ptr ')' array_dimension
	4142	{ $$ = $2->addArray( $4 ); }
	4143	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4144	{ $$ = $2->addArray( $4 ); }
	4145	\| '(' variable_abstract_array ')' // redundant parenthesis
	4146	{ $$ = $2; }
	4147	;
[51b73452]	4148
	4149	variable_abstract_function:
[647e2ea]	4150	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4151	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4152	\| '(' variable_abstract_function ')' // redundant parenthesis
	4153	{ $$ = $2; }
	4154	;
[b87a5ed]	4155
[de62360d]	4156	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4157	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4158
[c0aa336]	4159	cfa_identifier_parameter_declarator_tuple: // CFA
	4160	cfa_identifier_parameter_declarator_no_tuple
	4161	\| cfa_abstract_tuple
	4162	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4163	{ $$ = $2->addQualifiers( $1 ); }
	4164	;
[b87a5ed]	4165
[c0aa336]	4166	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4167	cfa_identifier_parameter_ptr
	4168	\| cfa_identifier_parameter_array
[4d51835]	4169	;
[b87a5ed]	4170
[c0aa336]	4171	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4172	// No SUE declaration in parameter list.
	4173	ptrref_operator type_specifier_nobody
[a5f9444]	4174	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4175	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4176	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4177	\| ptrref_operator cfa_abstract_function
[a5f9444]	4178	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4179	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4180	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4181	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4182	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4183	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4184	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4185	;
[b87a5ed]	4186
[c0aa336]	4187	cfa_identifier_parameter_array: // CFA
[de62360d]	4188	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4189	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4190	'[' ']' type_specifier_nobody
[a5f9444]	4191	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4192	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4193	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4194	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4195	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4196	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4197	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4198	\| multi_array_dimension type_specifier_nobody
[4d51835]	4199	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4200
[c0aa336]	4201	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4202	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4203	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4204	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4205	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4206	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4207	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4208	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4209	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4210	{ $$ = $2->addNewArray( $1 ); }
	4211	;
[51b73452]	4212
[c0aa336]	4213	cfa_array_parameter_1st_dimension:
[c0a33d2]	4214	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4215	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4216	\| '[' push type_qualifier_list assignment_expression pop ']'
	4217	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4218	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4219	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4220	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4221	// appear in this context.
[c0a33d2]	4222	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4223	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4224	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4225	;
[b87a5ed]	4226
[de62360d]	4227	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4228	// identifier to which the type applies, e.g.:
[c11e31c]	4229	//
[b87a5ed]	4230	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4231	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4232	//
	4233	// These rules need LR(3):
	4234	//
[c0aa336]	4235	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4236	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4237	//
	4238	// since a function return type can be syntactically identical to a tuple type:
	4239	//
[b87a5ed]	4240	// [int, int] t;
	4241	// [int, int] f( int );
[c11e31c]	4242	//
[2871210]	4243	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4244	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4245	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4246	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4247
[c0aa336]	4248	cfa_abstract_declarator_tuple: // CFA
	4249	cfa_abstract_tuple
	4250	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4251	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4252	\| cfa_abstract_declarator_no_tuple
[4d51835]	4253	;
[b87a5ed]	4254
[c0aa336]	4255	cfa_abstract_declarator_no_tuple: // CFA
	4256	cfa_abstract_ptr
	4257	\| cfa_abstract_array
[4d51835]	4258	;
[b87a5ed]	4259
[c0aa336]	4260	cfa_abstract_ptr: // CFA
[dd51906]	4261	ptrref_operator type_specifier
[a5f9444]	4262	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4263	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4264	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4265	\| ptrref_operator cfa_abstract_function
[a5f9444]	4266	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4267	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4268	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4269	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4270	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4271	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4272	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4273	;
[b87a5ed]	4274
[c0aa336]	4275	cfa_abstract_array: // CFA
[de62360d]	4276	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4277	// empty (void) function return type.
[2871210]	4278	'[' ']' type_specifier
[2298f728]	4279	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4280	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4281	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4282	\| multi_array_dimension type_specifier
	4283	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4284	\| '[' ']' cfa_abstract_ptr
[2298f728]	4285	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4286	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4287	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4288	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4289	{ $$ = $2->addNewArray( $1 ); }
	4290	;
[b87a5ed]	4291
[c0aa336]	4292	cfa_abstract_tuple: // CFA
[c0a33d2]	4293	'[' push cfa_abstract_parameter_list pop ']'
	4294	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4295	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4296	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4297	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4298	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4299	;
[b87a5ed]	4300
[c0aa336]	4301	cfa_abstract_function: // CFA
[647e2ea]	4302	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4303	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4304	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4305	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4306	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4307	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4308	;
[b87a5ed]	4309
[de62360d]	4310	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4311	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4312	//
[de62360d]	4313	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4314	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4315	//
	4316	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4317	// prototype-format parameter type declarators) is an obsolescent feature."
	4318	//
[de62360d]	4319	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4320	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4321
[e1d66c84]	4322	// ********************** MISCELLANEOUS ******************************
[51b73452]	4323
[b87a5ed]	4324	comma_opt: // redundant comma
[4d51835]	4325	// empty
	4326	\| ','
	4327	;
[51b73452]	4328
[5a51798]	4329	default_initializer_opt:
[4d51835]	4330	// empty
[58dd019]	4331	{ $$ = nullptr; }
[4d51835]	4332	\| '=' assignment_expression
	4333	{ $$ = $2; }
	4334	;
[51b73452]	4335
	4336	%%
[a1c9ddd]	4337
[c11e31c]	4338	// ----end of grammar----
[51b73452]	4339
[c11e31c]	4340	// Local Variables: //
[b87a5ed]	4341	// mode: c++ //
[de62360d]	4342	// tab-width: 4 //
[7e13b11]	4343	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4344	// End: //

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