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parser.yy@ ba97ebf

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Last change on this file since ba97ebf was 7a780ad, checked in by Andrew Beach <ajbeach@…>, 21 months ago
Moved ast::BasicType::Kind to ast::BasicKind in its own hearder. This is more consistent with other utility enums (although we still use this as a enum class) and reduces what some files need to include. Also did a upgrade in a comment with MAX_INTEGER_TYPE, it is now part of the enum.
Property mode set to `100644`
File size: 176.3 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
[42422fb]	12	// Last Modified On : Sat Mar 16 18:19:23 2024
	13	// Update Count : 6617
[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
[c468150]	50	#include "DeclarationNode.h" // for DeclarationNode, ...
	51	#include "ExpressionNode.h" // for ExpressionNode, ...
	52	#include "InitializerNode.h" // for InitializerNode, ...
	53	#include "ParserTypes.h"
	54	#include "StatementNode.h" // for build_...
[984dce6]	55	#include "TypedefTable.h"
[1db21619]	56	#include "TypeData.h"
[7a780ad]	57	#include "AST/Type.hpp" // for BasicType, BasicKind
[9ed4f94]	58	#include "Common/SemanticError.h" // error_str
[513e165]	59	#include "Common/utility.h" // 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
	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
[e07caa2]	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
[ab57786]	682	string_literal:
[32d6fdc]	683	string_literal_list { $$ = new ExpressionNode( build_constantStr( yylloc, *$1 ) ); }
[ab57786]	684	;
	685
[b87a5ed]	686	string_literal_list: // juxtaposed strings are concatenated
[ab57786]	687	STRINGliteral { $$ = $1; } // conversion from tok to str
[7bf7fb9]	688	\| string_literal_list STRINGliteral
	689	{
[15697ff]	690	if ( ! appendStr( $1, $2 ) ) YYERROR; // append 2nd juxtaposed string to 1st
[7bf7fb9]	691	delete $2; // allocated by lexer
[ab57786]	692	$$ = $1; // conversion from tok to str
[7bf7fb9]	693	}
[4d51835]	694	;
[51b73452]	695
[e1d66c84]	696	// ********************** EXPRESSIONS ******************************
[51b73452]	697
	698	primary_expression:
[4d51835]	699	IDENTIFIER // typedef name cannot be used as a variable name
[bb7422a]	700	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[5b2edbc]	701	\| quasi_keyword
[bb7422a]	702	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[6e50a6b]	703	\| TYPEDIMname // CFA, generic length argument
[bb7422a]	704	{ $$ = new ExpressionNode( build_dimensionref( yylloc, $1 ) ); }
[1b29996]	705	\| tuple
[4d51835]	706	\| '(' comma_expression ')'
	707	{ $$ = $2; }
	708	\| '(' compound_statement ')' // GCC, lambda expression
[bb7422a]	709	{ $$ = new ExpressionNode( new ast::StmtExpr( yylloc, dynamic_cast<ast::CompoundStmt *>( maybeMoveBuild( $2 ) ) ) ); }
[033ff37]	710	\| type_name '.' identifier // CFA, nested type
[6cef439]	711	{ $$ = new ExpressionNode( build_qualified_expr( yylloc, DeclarationNode::newFromTypeData( $1 ), build_varref( yylloc, $3 ) ) ); }
[679e644]	712	\| type_name '.' '[' field_name_list ']' // CFA, nested type / tuple field selector
[203c667]	713	{ SemanticError( yylloc, "Qualified name is currently unimplemented." ); $$ = nullptr; }
[24c3b67]	714	\| GENERIC '(' assignment_expression ',' generic_assoc_list ')' // C11
[d807ca28]	715	{
	716	// add the missing control expression to the GenericExpr and return it
[702e826]	717	$5->control = maybeMoveBuild( $3 );
[d807ca28]	718	$$ = new ExpressionNode( $5 );
	719	}
[c786e1d]	720	// \| RESUME '(' comma_expression ')'
	721	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
	722	// \| RESUME '(' comma_expression ')' compound_statement
	723	// { SemanticError( yylloc, "Resume expression is currently unimplemented." ); $$ = nullptr; }
[65ef0cd]	724	\| IDENTIFIER IDENTIFIER // invalid syntax rule
[b1f2007d]	725	{ IdentifierBeforeIdentifier( $1.str, $2.str, "expression" ); $$ = nullptr; }
[65ef0cd]	726	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	727	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	728	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	729	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	730	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	731	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	732	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	733	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	734	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	735	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[24c3b67]	736	;
	737
	738	generic_assoc_list: // C11
[d807ca28]	739	generic_association
[24c3b67]	740	\| generic_assoc_list ',' generic_association
[d807ca28]	741	{
	742	// steal the association node from the singleton and delete the wrapper
[bb7422a]	743	assert( 1 == $3->associations.size() );
	744	$1->associations.push_back( $3->associations.front() );
[d807ca28]	745	delete $3;
	746	$$ = $1;
	747	}
[24c3b67]	748	;
	749
	750	generic_association: // C11
	751	type_no_function ':' assignment_expression
[d807ca28]	752	{
	753	// create a GenericExpr wrapper with one association pair
[bb7422a]	754	$$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuildType( $1 ), maybeMoveBuild( $3 ) } } );
[d807ca28]	755	}
[24c3b67]	756	\| DEFAULT ':' assignment_expression
[bb7422a]	757	{ $$ = new ast::GenericExpr( yylloc, nullptr, { { maybeMoveBuild( $3 ) } } ); }
[4d51835]	758	;
[51b73452]	759
	760	postfix_expression:
[4d51835]	761	primary_expression
[1d71208]	762	\| postfix_expression '[' assignment_expression ',' tuple_expression_list ']'
[59c7e3e]	763	// Historic, transitional: Disallow commas in subscripts.
	764	// Switching to this behaviour may help check if a C compatibilty case uses comma-exprs in subscripts.
	765	// Current: Commas in subscripts make tuples.
[b93c544]	766	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, new ExpressionNode( build_tuple( yylloc, $3->set_last( $5 ) ) ) ) ); }
[7fdb94e1]	767	\| postfix_expression '[' assignment_expression ']'
[c6b1105]	768	// CFA, comma_expression disallowed in this context because it results in a common user error: subscripting a
[de62360d]	769	// matrix with x[i,j] instead of x[i][j]. While this change is not backwards compatible, there seems to be
	770	// little advantage to this feature and many disadvantages. It is possible to write x[(i,j)] in CFA, which is
	771	// equivalent to the old x[i,j].
[bb7422a]	772	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	773	\| constant '[' assignment_expression ']' // 3[a], 'a'[a], 3.5[a]
[bb7422a]	774	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[d824715]	775	\| string_literal '[' assignment_expression ']' // "abc"[3], 3["abc"]
[32d6fdc]	776	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Index, $1, $3 ) ); }
[cbbd8fd7]	777	\| postfix_expression '{' argument_expression_list_opt '}' // CFA, constructor call
[bd3d9e4]	778	{
	779	Token fn;
	780	fn.str = new std::string( "?{}" ); // location undefined - use location of '{'?
[b93c544]	781	$$ = new ExpressionNode( new ast::ConstructorExpr( yylloc, build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $1->set_last( $3 ) ) ) );
[bd3d9e4]	782	}
[cbbd8fd7]	783	\| postfix_expression '(' argument_expression_list_opt ')'
[bb7422a]	784	{ $$ = new ExpressionNode( build_func( yylloc, $1, $3 ) ); }
[59c7e3e]	785	\| VA_ARG '(' primary_expression ',' declaration_specifier_nobody abstract_parameter_declarator_opt ')'
	786	// { SemanticError( yylloc, "va_arg is currently unimplemented." ); $$ = nullptr; }
[b93c544]	787	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, new string( "__builtin_va_arg" ) ) ),
	788	$3->set_last( (ExpressionNode *)($6 ? $6->addType( $5 ) : $5) ) ) ); }
[948fdef]	789	\| postfix_expression '`' identifier // CFA, postfix call
[bb7422a]	790	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	791	\| constant '`' identifier // CFA, postfix call
[bb7422a]	792	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[948fdef]	793	\| string_literal '`' identifier // CFA, postfix call
[32d6fdc]	794	{ $$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, build_postfix_name( $3 ) ) ), $1 ) ); }
[4eb3a7c5]	795
	796	// SKULLDUGGERY: The typedef table used for parsing does not store fields in structures. To parse a qualified
	797	// name, it is assumed all name-tokens after the first are identifiers, regardless of how the lexer identifies
	798	// them. For example:
	799	//
	800	// struct S;
	801	// forall(T) struct T;
	802	// union U;
	803	// enum E { S, T, E };
	804	// struct Z { int S, T, Z, E, U; };
	805	// void fred () {
	806	// Z z;
	807	// z.S; // lexer returns S is TYPEDEFname
	808	// z.T; // lexer returns T is TYPEGENname
	809	// z.Z; // lexer returns Z is TYPEDEFname
	810	// z.U; // lexer returns U is TYPEDEFname
	811	// z.E; // lexer returns E is TYPEDEFname
	812	// }
[033ff37]	813	\| postfix_expression '.' identifier
[bb7422a]	814	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[4eb3a7c5]	815	\| postfix_expression '.' TYPEDEFname // CFA, SKULLDUGGERY
	816	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	817	\| postfix_expression '.' TYPEGENname // CFA, SKULLDUGGERY
	818	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
	819
[df22130]	820	\| postfix_expression '.' INTEGERconstant // CFA, tuple index
[bb7422a]	821	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[930f69e]	822	\| postfix_expression FLOATING_FRACTIONconstant // CFA, tuple index
[bb7422a]	823	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 ) ) ); }
[679e644]	824	\| postfix_expression '.' '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	825	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[e307e12]	826	\| postfix_expression '.' aggregate_control
[bb7422a]	827	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $3, $1 ) ); }
[033ff37]	828	\| postfix_expression ARROW identifier
[bb7422a]	829	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_varref( yylloc, $3 ) ) ); }
[861799c7]	830	\| postfix_expression ARROW INTEGERconstant // CFA, tuple index
[bb7422a]	831	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_constantInteger( yylloc, *$3 ) ) ); }
[679e644]	832	\| postfix_expression ARROW '[' field_name_list ']' // CFA, tuple field selector
[bb7422a]	833	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	834	\| postfix_expression ICR
[bb7422a]	835	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::IncrPost, $1 ) ); }
[4d51835]	836	\| postfix_expression DECR
[bb7422a]	837	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::DecrPost, $1 ) ); }
[7fdb94e1]	838	\| '(' type_no_function ')' '{' initializer_list_opt comma_opt '}' // C99, compound-literal
[bb7422a]	839	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, new InitializerNode( $5, true ) ) ); }
[7fdb94e1]	840	\| '(' type_no_function ')' '@' '{' initializer_list_opt comma_opt '}' // CFA, explicit C compound-literal
[bb7422a]	841	{ $$ = new ExpressionNode( build_compoundLiteral( yylloc, $2, (new InitializerNode( $6, true ))->set_maybeConstructed( false ) ) ); }
[cbbd8fd7]	842	\| '^' primary_expression '{' argument_expression_list_opt '}' // CFA, destructor call
[097e2b0]	843	{
[9706554]	844	Token fn;
[ecb27a7]	845	fn.str = new string( "^?{}" ); // location undefined
[b93c544]	846	$$ = new ExpressionNode( build_func( yylloc, new ExpressionNode( build_varref( yylloc, fn ) ), $2->set_last( $4 ) ) );
[097e2b0]	847	}
[4d51835]	848	;
[51b73452]	849
[cbbd8fd7]	850	argument_expression_list_opt:
[757ffed]	851	// empty
	852	{ $$ = nullptr; }
[e16eb460]	853	\| argument_expression_list
	854	;
	855
	856	argument_expression_list:
	857	argument_expression
[cbbd8fd7]	858	\| argument_expression_list_opt ',' argument_expression
[b93c544]	859	{ $$ = $1->set_last( $3 ); }
[4d51835]	860	;
[51b73452]	861
	862	argument_expression:
[757ffed]	863	'@' // CFA, default parameter
[679e644]	864	{ SemanticError( yylloc, "Default parameter for argument is currently unimplemented." ); $$ = nullptr; }
[9fd9d015]	865	// { $$ = new ExpressionNode( build_constantInteger( *new string( "2" ) ) ); }
[4d51835]	866	\| assignment_expression
	867	;
[b87a5ed]	868
[679e644]	869	field_name_list: // CFA, tuple field selector
[4d51835]	870	field
[b93c544]	871	\| field_name_list ',' field { $$ = $1->set_last( $3 ); }
[4d51835]	872	;
[b87a5ed]	873
	874	field: // CFA, tuple field selector
[faddbd8]	875	field_name
[930f69e]	876	\| FLOATING_DECIMALconstant field
[bb7422a]	877	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), maybeMoveBuild( $2 ) ) ); }
[679e644]	878	\| FLOATING_DECIMALconstant '[' field_name_list ']'
[bb7422a]	879	{ $$ = new ExpressionNode( build_fieldSel( yylloc, new ExpressionNode( build_field_name_FLOATING_DECIMALconstant( yylloc, *$1 ) ), build_tuple( yylloc, $3 ) ) ); }
[faddbd8]	880	\| field_name '.' field
[bb7422a]	881	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	882	\| field_name '.' '[' field_name_list ']'
[bb7422a]	883	{ $$ = new ExpressionNode( build_fieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[faddbd8]	884	\| field_name ARROW field
[bb7422a]	885	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, maybeMoveBuild( $3 ) ) ); }
[679e644]	886	\| field_name ARROW '[' field_name_list ']'
[bb7422a]	887	{ $$ = new ExpressionNode( build_pfieldSel( yylloc, $1, build_tuple( yylloc, $4 ) ) ); }
[4d51835]	888	;
[51b73452]	889
[faddbd8]	890	field_name:
[df22130]	891	INTEGERconstant fraction_constants_opt
[bb7422a]	892	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_constantInteger( yylloc, *$1 ), $2 ) ); }
[df22130]	893	\| FLOATINGconstant fraction_constants_opt
[bb7422a]	894	{ $$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_field_name_FLOATINGconstant( yylloc, *$1 ), $2 ) ); }
[e16eb460]	895	\| identifier_at fraction_constants_opt // CFA, allow anonymous fields
[4cb935e]	896	{
[bb7422a]	897	$$ = new ExpressionNode( build_field_name_fraction_constants( yylloc, build_varref( yylloc, $1 ), $2 ) );
[84d58c5]	898	}
[1b29996]	899	;
	900
[df22130]	901	fraction_constants_opt:
[1b29996]	902	// empty
[8780e30]	903	{ $$ = nullptr; }
[df22130]	904	\| fraction_constants_opt FLOATING_FRACTIONconstant
[8780e30]	905	{
[bb7422a]	906	ast::Expr * constant = build_field_name_FLOATING_FRACTIONconstant( yylloc, *$2 );
	907	$$ = $1 != nullptr ? new ExpressionNode( build_fieldSel( yylloc, $1, constant ) ) : new ExpressionNode( constant );
[8780e30]	908	}
[faddbd8]	909	;
	910
[51b73452]	911	unary_expression:
[4d51835]	912	postfix_expression
[c6b1105]	913	// first location where constant/string can have operator applied: sizeof 3/sizeof "abc" still requires
	914	// semantics checks, e.g., ++3, 3--, *3, &&3
[51b1202]	915	\| constant
[ab57786]	916	\| string_literal
[32d6fdc]	917	{ $$ = $1; }
[4d51835]	918	\| EXTENSION cast_expression // GCC
[e04ef3a]	919	{ $$ = $2->set_extension( true ); }
[c6b1105]	920	// '*' ('&') is separated from unary_operator because of shift/reduce conflict in:
	921	// { * X; } // dereference X
	922	// { * int X; } // CFA declaration of pointer to int
[51e076e]	923	\| ptrref_operator cast_expression // CFA
[9706554]	924	{
	925	switch ( $1 ) {
[bb7422a]	926	case OperKinds::AddressOf:
	927	$$ = new ExpressionNode( new ast::AddressExpr( maybeMoveBuild( $2 ) ) );
[9706554]	928	break;
[bb7422a]	929	case OperKinds::PointTo:
	930	$$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) );
[9706554]	931	break;
[bb7422a]	932	case OperKinds::And:
	933	$$ = new ExpressionNode( new ast::AddressExpr( new ast::AddressExpr( maybeMoveBuild( $2 ) ) ) );
[5809461]	934	break;
[bb7422a]	935	default:
[9706554]	936	assert( false );
	937	}
	938	}
[4d51835]	939	\| unary_operator cast_expression
[bb7422a]	940	{ $$ = new ExpressionNode( build_unary_val( yylloc, $1, $2 ) ); }
[dd51906]	941	\| ICR unary_expression
[bb7422a]	942	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Incr, $2 ) ); }
[dd51906]	943	\| DECR unary_expression
[bb7422a]	944	{ $$ = new ExpressionNode( build_unary_val( yylloc, OperKinds::Decr, $2 ) ); }
[4d51835]	945	\| SIZEOF unary_expression
[bb7422a]	946	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[84d58c5]	947	\| SIZEOF '(' type_no_function ')'
[bb7422a]	948	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[d1625f8]	949	\| ALIGNOF unary_expression // GCC, variable alignment
[bb7422a]	950	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuild( $2 ) ) ); }
[a2e0687]	951	\| ALIGNOF '(' type_no_function ')' // GCC, type alignment
[bb7422a]	952	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
[7e13b11]	953
	954	// Cannot use rule "type", which includes cfa_abstract_function, for sizeof/alignof, because of S/R problems on
	955	// look ahead, so the cfa_abstract_function is factored out.
	956	\| SIZEOF '(' cfa_abstract_function ')'
	957	{ $$ = new ExpressionNode( new ast::SizeofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	958	\| ALIGNOF '(' cfa_abstract_function ')' // GCC, type alignment
	959	{ $$ = new ExpressionNode( new ast::AlignofExpr( yylloc, maybeMoveBuildType( $3 ) ) ); }
	960
[033ff37]	961	\| OFFSETOF '(' type_no_function ',' identifier ')'
[bb7422a]	962	{ $$ = new ExpressionNode( build_offsetOf( yylloc, $3, build_varref( yylloc, $5 ) ) ); }
[7e13b11]	963	\| TYPEID '(' type ')'
[1f652a7]	964	{
	965	SemanticError( yylloc, "typeid name is currently unimplemented." ); $$ = nullptr;
	966	// $$ = new ExpressionNode( build_offsetOf( $3, build_varref( $5 ) ) );
	967	}
[4d51835]	968	;
[51b73452]	969
[dd51906]	970	ptrref_operator:
[d9e2280]	971	'*' { $$ = OperKinds::PointTo; }
	972	\| '&' { $$ = OperKinds::AddressOf; }
[c6b1105]	973	// GCC, address of label must be handled by semantic check for ref,ref,label
[9f07232]	974	\| ANDAND { $$ = OperKinds::And; }
[dd51906]	975	;
	976
[51b73452]	977	unary_operator:
[d9e2280]	978	'+' { $$ = OperKinds::UnPlus; }
	979	\| '-' { $$ = OperKinds::UnMinus; }
	980	\| '!' { $$ = OperKinds::Neg; }
	981	\| '~' { $$ = OperKinds::BitNeg; }
[4d51835]	982	;
[51b73452]	983
	984	cast_expression:
[4d51835]	985	unary_expression
[84d58c5]	986	\| '(' type_no_function ')' cast_expression
[bb7422a]	987	{ $$ = new ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[e307e12]	988	\| '(' aggregate_control '&' ')' cast_expression // CFA
[bb7422a]	989	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[24711a3]	990	\| '(' aggregate_control '*' ')' cast_expression // CFA
[bb7422a]	991	{ $$ = new ExpressionNode( build_keyword_cast( yylloc, $2, $5 ) ); }
[fae90d5f]	992	\| '(' VIRTUAL ')' cast_expression // CFA
[6cef439]	993	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $4 ), nullptr ) ); }
[fae90d5f]	994	\| '(' VIRTUAL type_no_function ')' cast_expression // CFA
[bb7422a]	995	{ $$ = new ExpressionNode( new ast::VirtualCastExpr( yylloc, maybeMoveBuild( $5 ), maybeMoveBuildType( $3 ) ) ); }
[1528a2c]	996	\| '(' RETURN type_no_function ')' cast_expression // CFA
[24d6572]	997	{ $$ = new ExpressionNode( build_cast( yylloc, $3, $5, ast::CastExpr::Return ) ); }
[1528a2c]	998	\| '(' COERCE type_no_function ')' cast_expression // CFA
	999	{ SemanticError( yylloc, "Coerce cast is currently unimplemented." ); $$ = nullptr; }
	1000	\| '(' qualifier_cast_list ')' cast_expression // CFA
	1001	{ SemanticError( yylloc, "Qualifier cast is currently unimplemented." ); $$ = nullptr; }
[84d58c5]	1002	// \| '(' type_no_function ')' tuple
[bb7422a]	1003	// { $$ = new ast::ExpressionNode( build_cast( yylloc, $2, $4 ) ); }
[4d51835]	1004	;
[51b73452]	1005
[1528a2c]	1006	qualifier_cast_list:
	1007	cast_modifier type_qualifier_name
	1008	\| cast_modifier MUTEX
	1009	\| qualifier_cast_list cast_modifier type_qualifier_name
	1010	\| qualifier_cast_list cast_modifier MUTEX
	1011	;
	1012
	1013	cast_modifier:
	1014	'-'
	1015	\| '+'
	1016	;
	1017
[994d080]	1018	exponential_expression:
[4d51835]	1019	cast_expression
[994d080]	1020	\| exponential_expression '\\' cast_expression
[bb7422a]	1021	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Exp, $1, $3 ) ); }
[994d080]	1022	;
	1023
	1024	multiplicative_expression:
	1025	exponential_expression
	1026	\| multiplicative_expression '*' exponential_expression
[bb7422a]	1027	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mul, $1, $3 ) ); }
[994d080]	1028	\| multiplicative_expression '/' exponential_expression
[bb7422a]	1029	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Div, $1, $3 ) ); }
[994d080]	1030	\| multiplicative_expression '%' exponential_expression
[bb7422a]	1031	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Mod, $1, $3 ) ); }
[4d51835]	1032	;
[51b73452]	1033
	1034	additive_expression:
[4d51835]	1035	multiplicative_expression
	1036	\| additive_expression '+' multiplicative_expression
[bb7422a]	1037	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Plus, $1, $3 ) ); }
[4d51835]	1038	\| additive_expression '-' multiplicative_expression
[bb7422a]	1039	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Minus, $1, $3 ) ); }
[4d51835]	1040	;
[51b73452]	1041
	1042	shift_expression:
[4d51835]	1043	additive_expression
	1044	\| shift_expression LS additive_expression
[bb7422a]	1045	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LShift, $1, $3 ) ); }
[4d51835]	1046	\| shift_expression RS additive_expression
[bb7422a]	1047	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::RShift, $1, $3 ) ); }
[4d51835]	1048	;
[51b73452]	1049
	1050	relational_expression:
[4d51835]	1051	shift_expression
	1052	\| relational_expression '<' shift_expression
[bb7422a]	1053	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LThan, $1, $3 ) ); }
[4d51835]	1054	\| relational_expression '>' shift_expression
[bb7422a]	1055	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GThan, $1, $3 ) ); }
[4d51835]	1056	\| relational_expression LE shift_expression
[bb7422a]	1057	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::LEThan, $1, $3 ) ); }
[4d51835]	1058	\| relational_expression GE shift_expression
[bb7422a]	1059	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::GEThan, $1, $3 ) ); }
[4d51835]	1060	;
[51b73452]	1061
	1062	equality_expression:
[4d51835]	1063	relational_expression
	1064	\| equality_expression EQ relational_expression
[bb7422a]	1065	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Eq, $1, $3 ) ); }
[4d51835]	1066	\| equality_expression NE relational_expression
[bb7422a]	1067	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Neq, $1, $3 ) ); }
[4d51835]	1068	;
[51b73452]	1069
	1070	AND_expression:
[4d51835]	1071	equality_expression
	1072	\| AND_expression '&' equality_expression
[bb7422a]	1073	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitAnd, $1, $3 ) ); }
[4d51835]	1074	;
[51b73452]	1075
	1076	exclusive_OR_expression:
[4d51835]	1077	AND_expression
	1078	\| exclusive_OR_expression '^' AND_expression
[bb7422a]	1079	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::Xor, $1, $3 ) ); }
[4d51835]	1080	;
[51b73452]	1081
	1082	inclusive_OR_expression:
[4d51835]	1083	exclusive_OR_expression
	1084	\| inclusive_OR_expression '\|' exclusive_OR_expression
[bb7422a]	1085	{ $$ = new ExpressionNode( build_binary_val( yylloc, OperKinds::BitOr, $1, $3 ) ); }
[4d51835]	1086	;
[51b73452]	1087
	1088	logical_AND_expression:
[4d51835]	1089	inclusive_OR_expression
	1090	\| logical_AND_expression ANDAND inclusive_OR_expression
[bb7422a]	1091	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::AndExpr ) ); }
[4d51835]	1092	;
[51b73452]	1093
	1094	logical_OR_expression:
[4d51835]	1095	logical_AND_expression
	1096	\| logical_OR_expression OROR logical_AND_expression
[bb7422a]	1097	{ $$ = new ExpressionNode( build_and_or( yylloc, $1, $3, ast::OrExpr ) ); }
[4d51835]	1098	;
[51b73452]	1099
	1100	conditional_expression:
[4d51835]	1101	logical_OR_expression
	1102	\| logical_OR_expression '?' comma_expression ':' conditional_expression
[bb7422a]	1103	{ $$ = new ExpressionNode( build_cond( yylloc, $1, $3, $5 ) ); }
[4d51835]	1104	\| logical_OR_expression '?' /* empty */ ':' conditional_expression // GCC, omitted first operand
[2810700]	1105	{ $$ = new ExpressionNode( build_cond( yylloc, $1, nullptr, $4 ) ); }
[4d51835]	1106	;
[51b73452]	1107
	1108	constant_expression:
[4d51835]	1109	conditional_expression
	1110	;
[51b73452]	1111
	1112	assignment_expression:
[4d51835]	1113	// CFA, assignment is separated from assignment_operator to ensure no assignment operations for tuples
	1114	conditional_expression
	1115	\| unary_expression assignment_operator assignment_expression
[9867cdb]	1116	{
[25744d2]	1117	// if ( $2 == OperKinds::AtAssn ) {
	1118	// SemanticError( yylloc, "C @= assignment is currently unimplemented." ); $$ = nullptr;
	1119	// } else {
[bb7422a]	1120	$$ = new ExpressionNode( build_binary_val( yylloc, $2, $1, $3 ) );
[25744d2]	1121	// } // if
[9867cdb]	1122	}
[7fdb94e1]	1123	\| unary_expression '=' '{' initializer_list_opt comma_opt '}'
[fae90d5f]	1124	{ SemanticError( yylloc, "Initializer assignment is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1125	;
[51b73452]	1126
	1127	assignment_expression_opt:
[4d51835]	1128	// empty
[d1625f8]	1129	{ $$ = nullptr; }
[4d51835]	1130	\| assignment_expression
	1131	;
[b87a5ed]	1132
[9706554]	1133	assignment_operator:
[f9c3100]	1134	simple_assignment_operator
	1135	\| compound_assignment_operator
	1136	;
	1137
	1138	simple_assignment_operator:
[d9e2280]	1139	'=' { $$ = OperKinds::Assign; }
[f9c3100]	1140	\| ATassign { $$ = OperKinds::AtAssn; } // CFA
	1141	;
	1142
	1143	compound_assignment_operator:
	1144	EXPassign { $$ = OperKinds::ExpAssn; }
[d9e2280]	1145	\| MULTassign { $$ = OperKinds::MulAssn; }
	1146	\| DIVassign { $$ = OperKinds::DivAssn; }
	1147	\| MODassign { $$ = OperKinds::ModAssn; }
	1148	\| PLUSassign { $$ = OperKinds::PlusAssn; }
	1149	\| MINUSassign { $$ = OperKinds::MinusAssn; }
	1150	\| LSassign { $$ = OperKinds::LSAssn; }
	1151	\| RSassign { $$ = OperKinds::RSAssn; }
	1152	\| ANDassign { $$ = OperKinds::AndAssn; }
	1153	\| ERassign { $$ = OperKinds::ERAssn; }
	1154	\| ORassign { $$ = OperKinds::OrAssn; }
[413ad05]	1155	;
[9706554]	1156
[b87a5ed]	1157	tuple: // CFA, tuple
[de62360d]	1158	// CFA, one assignment_expression is factored out of comma_expression to eliminate a shift/reduce conflict with
[c0aa336]	1159	// comma_expression in cfa_identifier_parameter_array and cfa_abstract_array
[1b29996]	1160	// '[' ']'
	1161	// { $$ = new ExpressionNode( build_tuple() ); }
[13e8427]	1162	// \| '[' push assignment_expression pop ']'
[1b29996]	1163	// { $$ = new ExpressionNode( build_tuple( $3 ) ); }
[17238fd]	1164	'[' ',' tuple_expression_list ']'
[b93c544]	1165	{ $$ = new ExpressionNode( build_tuple( yylloc, (new ExpressionNode( nullptr ))->set_last( $3 ) ) ); }
[17238fd]	1166	\| '[' push assignment_expression pop ',' tuple_expression_list ']'
[b93c544]	1167	{ $$ = new ExpressionNode( build_tuple( yylloc, $3->set_last( $6 ) ) ); }
[4d51835]	1168	;
[51b73452]	1169
	1170	tuple_expression_list:
[0a6d8204]	1171	assignment_expression
	1172	\| '@' // CFA
	1173	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
	1174	\| tuple_expression_list ',' assignment_expression
[b93c544]	1175	{ $$ = $1->set_last( $3 ); }
[0a6d8204]	1176	\| tuple_expression_list ',' '@'
	1177	{ SemanticError( yylloc, "Eliding tuple element with '@' is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1178	;
[51b73452]	1179
	1180	comma_expression:
[4d51835]	1181	assignment_expression
[9706554]	1182	\| comma_expression ',' assignment_expression
[bb7422a]	1183	{ $$ = new ExpressionNode( new ast::CommaExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1184	;
[51b73452]	1185
	1186	comma_expression_opt:
[4d51835]	1187	// empty
[58dd019]	1188	{ $$ = nullptr; }
[4d51835]	1189	\| comma_expression
	1190	;
[51b73452]	1191
[e1d66c84]	1192	// ************************ STATEMENTS *****************************
[51b73452]	1193
	1194	statement:
[4d51835]	1195	labeled_statement
	1196	\| compound_statement
[c0a33d2]	1197	\| expression_statement
[4d51835]	1198	\| selection_statement
	1199	\| iteration_statement
	1200	\| jump_statement
[8b47e50]	1201	\| with_statement
[b6b3c42]	1202	\| mutex_statement
[5b2edbc]	1203	\| waitfor_statement
[9fd9d015]	1204	\| waituntil_statement
[11ab0b4a]	1205	\| corun_statement
	1206	\| cofor_statement
[4d51835]	1207	\| exception_statement
[2a8427c6]	1208	\| enable_disable_statement
[fae90d5f]	1209	{ SemanticError( yylloc, "enable/disable statement is currently unimplemented." ); $$ = nullptr; }
[4d51835]	1210	\| asm_statement
[61fc4f6]	1211	\| DIRECTIVE
[bb7422a]	1212	{ $$ = new StatementNode( build_directive( yylloc, $1 ) ); }
[b9be000b]	1213	;
[51b73452]	1214
	1215	labeled_statement:
[033ff37]	1216	// labels cannot be identifiers 0 or 1
[44a81853]	1217	identifier_or_type_name ':' attribute_list_opt statement
[bb7422a]	1218	{ $$ = $4->add_label( yylloc, $1, $3 ); }
[0442f93f]	1219	\| identifier_or_type_name ':' attribute_list_opt error // invalid syntax rule
[afe9e45]	1220	{
[b1f2007d]	1221	SemanticError( yylloc, "syntx error, label \"%s\" must be associated with a statement, "
	1222	"where a declaration, case, or default is not a statement.\n"
	1223	"Move the label or terminate with a semicolon.", $1.str->c_str() );
[afe9e45]	1224	$$ = nullptr;
	1225	}
[4d51835]	1226	;
[51b73452]	1227
	1228	compound_statement:
[4d51835]	1229	'{' '}'
[bb7422a]	1230	{ $$ = new StatementNode( build_compound( yylloc, (StatementNode *)0 ) ); }
[35718a9]	1231	\| '{' push
[5e25953]	1232	local_label_declaration_opt // GCC, local labels appear at start of block
[9bd6105]	1233	statement_decl_list // C99, intermix declarations and statements
[c0aa336]	1234	pop '}'
[bb7422a]	1235	{ $$ = new StatementNode( build_compound( yylloc, $4 ) ); }
[4d51835]	1236	;
[b87a5ed]	1237
[9bd6105]	1238	statement_decl_list: // C99
	1239	statement_decl
[35718a9]	1240	\| statement_decl_list statement_decl
[6d01d89]	1241	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[4d51835]	1242	;
[51b73452]	1243
[9bd6105]	1244	statement_decl:
[4d51835]	1245	declaration // CFA, new & old style declarations
[e82aa9df]	1246	{ $$ = new StatementNode( $1 ); }
[4d51835]	1247	\| EXTENSION declaration // GCC
[6d01d89]	1248	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[4d51835]	1249	\| function_definition
[e82aa9df]	1250	{ $$ = new StatementNode( $1 ); }
[c0aa336]	1251	\| EXTENSION function_definition // GCC
[6d01d89]	1252	{ distExt( $2 ); $$ = new StatementNode( $2 ); }
[35718a9]	1253	\| statement
[4d51835]	1254	;
[51b73452]	1255
[9bd6105]	1256	statement_list_nodecl:
[4d51835]	1257	statement
[9bd6105]	1258	\| statement_list_nodecl statement
[6d01d89]	1259	{ assert( $1 ); $1->set_last( $2 ); $$ = $1; }
[0442f93f]	1260	\| statement_list_nodecl error // invalid syntax rule
[7e13b11]	1261	{ SemanticError( yylloc, "syntax error, declarations only allowed at the start of the switch body,"
	1262	" i.e., after the '{'." ); $$ = nullptr; }
[4d51835]	1263	;
[51b73452]	1264
	1265	expression_statement:
[4d51835]	1266	comma_expression_opt ';'
[bb7422a]	1267	{ $$ = new StatementNode( build_expr( yylloc, $1 ) ); }
[4d51835]	1268	;
[51b73452]	1269
[7e13b11]	1270	// "if", "switch", and "choose" require parenthesis around the conditional. See the following ambiguities without
	1271	// parenthesis:
	1272	//
[446740a]	1273	// if x + y + z; => if ( x ) + y + z or if ( x + y ) + z
[647e2ea]	1274	//
[7e13b11]	1275	// switch O { }
	1276	//
	1277	// O{} => object-constructor for conditional, switch body ???
	1278	// O{} => O for conditional followed by switch body
	1279	//
	1280	// C++ has this problem, as it has the same constructor syntax.
	1281	//
	1282	// switch sizeof ( T ) { }
	1283	//
	1284	// sizeof ( T ) => sizeof of T for conditional followed by switch body
	1285	// sizeof ( T ) => sizeof of compound literal (T){ }, closing parenthesis ???
	1286	//
	1287	// Note the two grammar rules for sizeof (alignof)
	1288	//
	1289	// \| SIZEOF unary_expression
	1290	// \| SIZEOF '(' type_no_function ')'
	1291	//
	1292	// where the first DOES NOT require parenthesis! And C++ inherits this problem from C.
[647e2ea]	1293
[51b73452]	1294	selection_statement:
[647e2ea]	1295	IF '(' conditional_declaration ')' statement %prec THEN
	1296	// explicitly deal with the shift/reduce conflict on if/else
	1297	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), nullptr ) ); }
	1298	\| IF '(' conditional_declaration ')' statement ELSE statement
	1299	{ $$ = new StatementNode( build_if( yylloc, $3, maybe_build_compound( yylloc, $5 ), maybe_build_compound( yylloc, $7 ) ) ); }
[4cc585b]	1300	\| SWITCH '(' comma_expression ')' case_clause
[bb7422a]	1301	{ $$ = new StatementNode( build_switch( yylloc, true, $3, $5 ) ); }
[35718a9]	1302	\| SWITCH '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1303	{
[bb7422a]	1304	StatementNode *sw = new StatementNode( build_switch( yylloc, true, $3, $8 ) );
[4e06c1e]	1305	// The semantics of the declaration list is changed to include associated initialization, which is performed
	1306	// before the transfer to the appropriate case clause by hoisting the declarations into a compound
	1307	// statement around the switch. Statements after the initial declaration list can never be executed, and
[8688ce1]	1308	// therefore, are removed from the grammar even though C allows it. The change also applies to choose
	1309	// statement.
[b93c544]	1310	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1311	}
[0442f93f]	1312	\| SWITCH '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule error
[55266c7]	1313	{ SemanticError( yylloc, "synatx error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1314	\| CHOOSE '(' comma_expression ')' case_clause // CFA
[bb7422a]	1315	{ $$ = new StatementNode( build_switch( yylloc, false, $3, $5 ) ); }
[35718a9]	1316	\| CHOOSE '(' comma_expression ')' '{' push declaration_list_opt switch_clause_list_opt pop '}' // CFA
[4e06c1e]	1317	{
[bb7422a]	1318	StatementNode *sw = new StatementNode( build_switch( yylloc, false, $3, $8 ) );
[b93c544]	1319	$$ = $7 ? new StatementNode( build_compound( yylloc, (new StatementNode( $7 ))->set_last( sw ) ) ) : sw;
[4e06c1e]	1320	}
[0442f93f]	1321	\| CHOOSE '(' comma_expression ')' '{' error '}' // CFA, invalid syntax rule
[55266c7]	1322	{ SemanticError( yylloc, "syntax error, declarations can only appear before the list of case clauses." ); $$ = nullptr; }
[4d51835]	1323	;
[b87a5ed]	1324
[473d1da0]	1325	conditional_declaration:
[35718a9]	1326	comma_expression
[473d1da0]	1327	{ $$ = new CondCtl( nullptr, $1 ); }
[35718a9]	1328	\| c_declaration // no semi-colon
[473d1da0]	1329	{ $$ = new CondCtl( $1, nullptr ); }
[35718a9]	1330	\| cfa_declaration // no semi-colon
[473d1da0]	1331	{ $$ = new CondCtl( $1, nullptr ); }
[6d49ea3]	1332	\| declaration comma_expression // semi-colon separated
[473d1da0]	1333	{ $$ = new CondCtl( $1, $2 ); }
[9fd9d015]	1334	;
[936e9f4]	1335
[de62360d]	1336	// CASE and DEFAULT clauses are only allowed in the SWITCH statement, precluding Duff's device. In addition, a case
	1337	// clause allows a list of values and subranges.
[b87a5ed]	1338
	1339	case_value: // CFA
[4d51835]	1340	constant_expression { $$ = $1; }
	1341	\| constant_expression ELLIPSIS constant_expression // GCC, subrange
[bb7422a]	1342	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	1343	\| subrange // CFA, subrange
	1344	;
[b87a5ed]	1345
	1346	case_value_list: // CFA
[6611177]	1347	case_value { $$ = new ClauseNode( build_case( yylloc, $1 ) ); }
[064e3ff]	1348	// convert case list, e.g., "case 1, 3, 5:" into "case 1: case 3: case 5"
[6611177]	1349	\| case_value_list ',' case_value { $$ = $1->set_last( new ClauseNode( build_case( yylloc, $3 ) ) ); }
[4d51835]	1350	;
[b87a5ed]	1351
	1352	case_label: // CFA
[0442f93f]	1353	CASE error // invalid syntax rule
[55266c7]	1354	{ SemanticError( yylloc, "syntax error, case list missing after case." ); $$ = nullptr; }
[5c216b4]	1355	\| CASE case_value_list ':' { $$ = $2; }
[0442f93f]	1356	\| CASE case_value_list error // invalid syntax rule
[55266c7]	1357	{ SemanticError( yylloc, "syntax error, colon missing after case list." ); $$ = nullptr; }
[6611177]	1358	\| DEFAULT ':' { $$ = new ClauseNode( build_default( yylloc ) ); }
[4d51835]	1359	// A semantic check is required to ensure only one default clause per switch/choose statement.
[65ef0cd]	1360	\| DEFAULT error // invalid syntax rule
[55266c7]	1361	{ SemanticError( yylloc, "syntax error, colon missing after default." ); $$ = nullptr; }
[4d51835]	1362	;
[b87a5ed]	1363
	1364	case_label_list: // CFA
[4d51835]	1365	case_label
[6611177]	1366	\| case_label_list case_label { $$ = $1->set_last( $2 ); }
[4d51835]	1367	;
[b87a5ed]	1368
	1369	case_clause: // CFA
[bb7422a]	1370	case_label_list statement { $$ = $1->append_last_case( maybe_build_compound( yylloc, $2 ) ); }
[4d51835]	1371	;
[b87a5ed]	1372
	1373	switch_clause_list_opt: // CFA
[4d51835]	1374	// empty
[58dd019]	1375	{ $$ = nullptr; }
[4d51835]	1376	\| switch_clause_list
	1377	;
[b87a5ed]	1378
	1379	switch_clause_list: // CFA
[9bd6105]	1380	case_label_list statement_list_nodecl
[bb7422a]	1381	{ $$ = $1->append_last_case( new StatementNode( build_compound( yylloc, $2 ) ) ); }
[9bd6105]	1382	\| switch_clause_list case_label_list statement_list_nodecl
[6611177]	1383	{ $$ = $1->set_last( $2->append_last_case( new StatementNode( build_compound( yylloc, $3 ) ) ) ); }
[4d51835]	1384	;
[b87a5ed]	1385
[51b73452]	1386	iteration_statement:
[5695645]	1387	WHILE '(' ')' statement %prec THEN // CFA => while ( 1 )
[bb7422a]	1388	{ $$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) ); }
[5695645]	1389	\| WHILE '(' ')' statement ELSE statement // CFA
[86b8d16]	1390	{
[bb7422a]	1391	$$ = new StatementNode( build_while( yylloc, new CondCtl( nullptr, NEW_ONE ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1392	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1393	}
[473d1da0]	1394	\| WHILE '(' conditional_declaration ')' statement %prec THEN
[bb7422a]	1395	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[473d1da0]	1396	\| WHILE '(' conditional_declaration ')' statement ELSE statement // CFA
[bb7422a]	1397	{ $$ = new StatementNode( build_while( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[f271bdd]	1398	\| DO statement WHILE '(' ')' ';' // CFA => do while( 1 )
[bb7422a]	1399	{ $$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) ); }
[5695645]	1400	\| DO statement WHILE '(' ')' ELSE statement // CFA
[86b8d16]	1401	{
[bb7422a]	1402	$$ = new StatementNode( build_do_while( yylloc, NEW_ONE, maybe_build_compound( yylloc, $2 ) ) );
[3d937e2]	1403	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1404	}
	1405	\| DO statement WHILE '(' comma_expression ')' ';'
[bb7422a]	1406	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ) ) ); }
[efc8f3e]	1407	\| DO statement WHILE '(' comma_expression ')' ELSE statement // CFA
[bb7422a]	1408	{ $$ = new StatementNode( build_do_while( yylloc, $5, maybe_build_compound( yylloc, $2 ), $8 ) ); }
[86b8d16]	1409	\| FOR '(' ')' statement %prec THEN // CFA => for ( ;; )
[bb7422a]	1410	{ $$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) ); }
[86b8d16]	1411	\| FOR '(' ')' statement ELSE statement // CFA
	1412	{
[bb7422a]	1413	$$ = new StatementNode( build_for( yylloc, new ForCtrl( nullptr, nullptr, nullptr ), maybe_build_compound( yylloc, $4 ) ) );
[3d937e2]	1414	SemanticWarning( yylloc, Warning::SuperfluousElse );
[86b8d16]	1415	}
[efc8f3e]	1416	\| FOR '(' for_control_expression_list ')' statement %prec THEN
[bb7422a]	1417	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[efc8f3e]	1418	\| FOR '(' for_control_expression_list ')' statement ELSE statement // CFA
[bb7422a]	1419	{ $$ = new StatementNode( build_for( yylloc, $3, maybe_build_compound( yylloc, $5 ), $7 ) ); }
[a73c16e]	1420	;
	1421
[6d01d89]	1422	for_control_expression_list:
	1423	for_control_expression
	1424	\| for_control_expression_list ':' for_control_expression
[67d4e37]	1425	// ForCtrl + ForCtrl:
	1426	// init + init => multiple declaration statements that are hoisted
	1427	// condition + condition => (expression) && (expression)
	1428	// change + change => (expression), (expression)
	1429	{
	1430	$1->init->set_last( $3->init );
	1431	if ( $1->condition ) {
	1432	if ( $3->condition ) {
[bb7422a]	1433	$1->condition->expr.reset( new ast::LogicalExpr( yylloc, $1->condition->expr.release(), $3->condition->expr.release(), ast::AndExpr ) );
[67d4e37]	1434	} // if
	1435	} else $1->condition = $3->condition;
	1436	if ( $1->change ) {
	1437	if ( $3->change ) {
[bb7422a]	1438	$1->change->expr.reset( new ast::CommaExpr( yylloc, $1->change->expr.release(), $3->change->expr.release() ) );
[67d4e37]	1439	} // if
	1440	} else $1->change = $3->change;
	1441	$$ = $1;
	1442	}
[6d01d89]	1443	;
	1444
[51b73452]	1445	for_control_expression:
[6d01d89]	1446	';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1447	{ $$ = new ForCtrl( nullptr, $2, $4 ); }
[6d01d89]	1448	\| comma_expression ';' comma_expression_opt ';' comma_expression_opt
[1cdc052]	1449	{
[bb7422a]	1450	StatementNode * init = $1 ? new StatementNode( new ast::ExprStmt( yylloc, maybeMoveBuild( $1 ) ) ) : nullptr;
[1cdc052]	1451	$$ = new ForCtrl( init, $3, $5 );
	1452	}
[6d01d89]	1453	\| declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';'
[1cdc052]	1454	{ $$ = new ForCtrl( new StatementNode( $1 ), $2, $4 ); }
[67d4e37]	1455
[aa122e9]	1456	\| '@' ';' comma_expression // CFA, empty loop-index
[1cdc052]	1457	{ $$ = new ForCtrl( nullptr, $3, nullptr ); }
[aa122e9]	1458	\| '@' ';' comma_expression ';' comma_expression // CFA, empty loop-index
[1cdc052]	1459	{ $$ = new ForCtrl( nullptr, $3, $5 ); }
[51fbba5]	1460
[aa122e9]	1461	\| comma_expression // CFA, anonymous loop-index
[bb7422a]	1462	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), NEW_ZERO, OperKinds::LThan, $1->clone(), NEW_ONE ); }
[aa122e9]	1463	\| downupdowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1464	{ $$ = forCtrl( yylloc, $2, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $1, NEW_ZERO, $2->clone() ), $1, UPDOWN( $1, $2->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1465
[aa122e9]	1466	\| comma_expression updowneq comma_expression // CFA, anonymous loop-index
[bb7422a]	1467	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), NEW_ONE ); }
[aa122e9]	1468	\| '@' updowneq comma_expression // CFA, anonymous loop-index
[dbedd71]	1469	{
[4fee301]	1470	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1471	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, NEW_ONE );
[dbedd71]	1472	}
[aa122e9]	1473	\| comma_expression updowneq '@' // CFA, anonymous loop-index
[dbedd71]	1474	{
[4fee301]	1475	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1476	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1477	}
[aa122e9]	1478	\| comma_expression updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[bb7422a]	1479	{ $$ = forCtrl( yylloc, $1, new string( DeclarationNode::anonymous.newName() ), UPDOWN( $2, $1->clone(), $3 ), $2, UPDOWN( $2, $3->clone(), $1->clone() ), $5 ); }
[aa122e9]	1480	\| '@' updowneq comma_expression '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1481	{
[4fee301]	1482	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1483	else $$ = forCtrl( yylloc, $3, new string( DeclarationNode::anonymous.newName() ), $3->clone(), $2, nullptr, $5 );
[dbedd71]	1484	}
[aa122e9]	1485	\| comma_expression updowneq '@' '~' comma_expression // CFA, anonymous loop-index
[dbedd71]	1486	{
[4fee301]	1487	if ( $2 == OperKinds::LThan \|\| $2 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[ed9a1ae]	1488	else { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[dbedd71]	1489	}
[65ef0cd]	1490	\| comma_expression updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1491	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1492	\| '@' updowneq '@' // CFA, invalid syntax rule
[4fee301]	1493	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1494	\| '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[4fee301]	1495	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1496	\| comma_expression updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1497	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[65ef0cd]	1498	\| '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[4fee301]	1499	{ SemanticError( yylloc, MISSING_ANON_FIELD ); $$ = nullptr; }
[52be5948]	1500
[f1aeede]	1501	\| comma_expression ';' comma_expression // CFA
[bb7422a]	1502	{ $$ = forCtrl( yylloc, $3, $1, NEW_ZERO, OperKinds::LThan, $3->clone(), NEW_ONE ); }
[d78c238]	1503	\| comma_expression ';' downupdowneq comma_expression // CFA
[bb7422a]	1504	{ $$ = forCtrl( yylloc, $4, $1, UPDOWN( $3, NEW_ZERO, $4->clone() ), $3, UPDOWN( $3, $4->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1505
[d78c238]	1506	\| comma_expression ';' comma_expression updowneq comma_expression // CFA
[bb7422a]	1507	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), NEW_ONE ); }
[dbedd71]	1508	\| comma_expression ';' '@' updowneq comma_expression // CFA
	1509	{
[4fee301]	1510	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1511	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, NEW_ONE );
[dbedd71]	1512	}
[52be5948]	1513	\| comma_expression ';' comma_expression updowneq '@' // CFA
	1514	{
[4fee301]	1515	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1516	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1517	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, NEW_ONE );
[52be5948]	1518	}
[65ef0cd]	1519	\| comma_expression ';' '@' updowneq '@' // CFA, invalid syntax rule
[55266c7]	1520	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1521
	1522	\| comma_expression ';' comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1523	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), $7 ); }
[65ef0cd]	1524	\| comma_expression ';' '@' updowneq comma_expression '~' comma_expression // CFA, invalid syntax rule
[dbedd71]	1525	{
[4fee301]	1526	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1527	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, $7 );
[dbedd71]	1528	}
[52be5948]	1529	\| comma_expression ';' comma_expression updowneq '@' '~' comma_expression // CFA
	1530	{
[4fee301]	1531	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1532	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1533	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, $7 );
[52be5948]	1534	}
	1535	\| comma_expression ';' comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1536	{ $$ = forCtrl( yylloc, $3, $1, UPDOWN( $4, $3->clone(), $5 ), $4, UPDOWN( $4, $5->clone(), $3->clone() ), nullptr ); }
[65ef0cd]	1537	\| comma_expression ';' '@' updowneq comma_expression '~' '@' // CFA, invalid syntax rule
[dbedd71]	1538	{
[4fee301]	1539	if ( $4 == OperKinds::LThan \|\| $4 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1540	else $$ = forCtrl( yylloc, $5, $1, $5->clone(), $4, nullptr, nullptr );
[dbedd71]	1541	}
[52be5948]	1542	\| comma_expression ';' comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1543	{
[4fee301]	1544	if ( $4 == OperKinds::GThan \|\| $4 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1545	else if ( $4 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1546	else $$ = forCtrl( yylloc, $3, $1, $3->clone(), $4, nullptr, nullptr );
[d78c238]	1547	}
[dbedd71]	1548	\| comma_expression ';' '@' updowneq '@' '~' '@' // CFA
[55266c7]	1549	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[d78c238]	1550
	1551	\| declaration comma_expression // CFA
[bb7422a]	1552	{ $$ = forCtrl( yylloc, $1, NEW_ZERO, OperKinds::LThan, $2, NEW_ONE ); }
[d78c238]	1553	\| declaration downupdowneq comma_expression // CFA
[bb7422a]	1554	{ $$ = forCtrl( yylloc, $1, UPDOWN( $2, NEW_ZERO, $3 ), $2, UPDOWN( $2, $3->clone(), NEW_ZERO ), NEW_ONE ); }
[52be5948]	1555
[d78c238]	1556	\| declaration comma_expression updowneq comma_expression // CFA
[bb7422a]	1557	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2->clone(), $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), NEW_ONE ); }
[dbedd71]	1558	\| declaration '@' updowneq comma_expression // CFA
	1559	{
[4fee301]	1560	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1561	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, NEW_ONE );
[dbedd71]	1562	}
[52be5948]	1563	\| declaration comma_expression updowneq '@' // CFA
	1564	{
[4fee301]	1565	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1566	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1567	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, NEW_ONE );
[52be5948]	1568	}
[d78c238]	1569
	1570	\| declaration comma_expression updowneq comma_expression '~' comma_expression // CFA
[bb7422a]	1571	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), $6 ); }
[dbedd71]	1572	\| declaration '@' updowneq comma_expression '~' comma_expression // CFA
	1573	{
[4fee301]	1574	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1575	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, $6 );
[dbedd71]	1576	}
[52be5948]	1577	\| declaration comma_expression updowneq '@' '~' comma_expression // CFA
	1578	{
[4fee301]	1579	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1580	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1581	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, $6 );
[52be5948]	1582	}
	1583	\| declaration comma_expression updowneq comma_expression '~' '@' // CFA
[bb7422a]	1584	{ $$ = forCtrl( yylloc, $1, UPDOWN( $3, $2, $4 ), $3, UPDOWN( $3, $4->clone(), $2->clone() ), nullptr ); }
[dbedd71]	1585	\| declaration '@' updowneq comma_expression '~' '@' // CFA
	1586	{
[4fee301]	1587	if ( $3 == OperKinds::LThan \|\| $3 == OperKinds::LEThan ) { SemanticError( yylloc, MISSING_LOW ); $$ = nullptr; }
[bb7422a]	1588	else $$ = forCtrl( yylloc, $1, $4, $3, nullptr, nullptr );
[dbedd71]	1589	}
[52be5948]	1590	\| declaration comma_expression updowneq '@' '~' '@' // CFA
[d78c238]	1591	{
[4fee301]	1592	if ( $3 == OperKinds::GThan \|\| $3 == OperKinds::GEThan ) { SemanticError( yylloc, MISSING_HIGH ); $$ = nullptr; }
[55266c7]	1593	else if ( $3 == OperKinds::LEThan ) { SemanticError( yylloc, "syntax error, equality with missing high value is meaningless. Use \"~\"." ); $$ = nullptr; }
[bb7422a]	1594	else $$ = forCtrl( yylloc, $1, $2, $3, nullptr, nullptr );
[d78c238]	1595	}
[65ef0cd]	1596	\| declaration '@' updowneq '@' '~' '@' // CFA, invalid syntax rule
[55266c7]	1597	{ SemanticError( yylloc, "syntax error, missing low/high value for up/down-to range so index is uninitialized." ); $$ = nullptr; }
[67d4e37]	1598
[446740a]	1599	\| comma_expression ';' enum_key // CFA, enum type
[ca33b15]	1600	{
[d78c238]	1601	SemanticError( yylloc, "Type iterator is currently unimplemented." ); $$ = nullptr;
	1602	//$$ = forCtrl( new ExpressionNode( build_varref( $3 ) ), $1, nullptr, OperKinds::Range, nullptr, nullptr );
[ca33b15]	1603	}
[446740a]	1604	\| comma_expression ';' downupdowneq enum_key // CFA, enum type, reverse direction
[d78c238]	1605	{
[55266c7]	1606	if ( $3 == OperKinds::LEThan \|\| $3 == OperKinds::GEThan ) {
[0442f93f]	1607	SemanticError( yylloc, "syntax error, all enumeration ranges are equal (all values). Remove \"=~\"." ); $$ = nullptr;
[55266c7]	1608	}
[d78c238]	1609	SemanticError( yylloc, "Type iterator is currently unimplemented." ); $$ = nullptr;
	1610	}
[9fd9d015]	1611	;
[98337569]	1612
[446740a]	1613	enum_key:
	1614	TYPEDEFname
	1615	\| ENUM TYPEDEFname
	1616	;
	1617
[d78c238]	1618	downupdowneq:
	1619	ErangeDown
	1620	{ $$ = OperKinds::GThan; }
	1621	\| ErangeUpEq
	1622	{ $$ = OperKinds::LEThan; }
	1623	\| ErangeDownEq
	1624	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1625	;
[51b73452]	1626
[d78c238]	1627	updown:
[cc22003]	1628	'~'
	1629	{ $$ = OperKinds::LThan; }
[d69f4bb4]	1630	\| ErangeDown
	1631	{ $$ = OperKinds::GThan; }
[9fd9d015]	1632	;
[d78c238]	1633
	1634	updowneq:
	1635	updown
	1636	\| ErangeUpEq
	1637	{ $$ = OperKinds::LEThan; }
[d69f4bb4]	1638	\| ErangeDownEq
	1639	{ $$ = OperKinds::GEThan; }
[9fd9d015]	1640	;
[cc22003]	1641
[51b73452]	1642	jump_statement:
[44a81853]	1643	GOTO identifier_or_type_name ';'
[bb7422a]	1644	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Goto ) ); }
[4d51835]	1645	\| GOTO '*' comma_expression ';' // GCC, computed goto
[4e06c1e]	1646	// The syntax for the GCC computed goto violates normal expression precedence, e.g., goto i+3; => goto (i+3);
[de62360d]	1647	// whereas normal operator precedence yields goto (*i)+3;
[e82aa9df]	1648	{ $$ = new StatementNode( build_computedgoto( $3 ) ); }
[6a276a0]	1649	// A semantic check is required to ensure fallthru appears only in the body of a choose statement.
[ec3f9c8]	1650	\| fall_through_name ';' // CFA
[bb7422a]	1651	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThrough ) ); }
[ec3f9c8]	1652	\| fall_through_name identifier_or_type_name ';' // CFA
[bb7422a]	1653	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::FallThrough ) ); }
[6a276a0]	1654	\| fall_through_name DEFAULT ';' // CFA
[bb7422a]	1655	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::FallThroughDefault ) ); }
[4d51835]	1656	\| CONTINUE ';'
[de62360d]	1657	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1658	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Continue ) ); }
[44a81853]	1659	\| CONTINUE identifier_or_type_name ';' // CFA, multi-level continue
[de62360d]	1660	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1661	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1662	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Continue ) ); }
[4d51835]	1663	\| BREAK ';'
[de62360d]	1664	// A semantic check is required to ensure this statement appears only in the body of an iteration statement.
[bb7422a]	1665	{ $$ = new StatementNode( build_branch( yylloc, ast::BranchStmt::Break ) ); }
[44a81853]	1666	\| BREAK identifier_or_type_name ';' // CFA, multi-level exit
[de62360d]	1667	// A semantic check is required to ensure this statement appears only in the body of an iteration statement, and
	1668	// the target of the transfer appears only at the start of an iteration statement.
[bb7422a]	1669	{ $$ = new StatementNode( build_branch( yylloc, $2, ast::BranchStmt::Break ) ); }
[4d51835]	1670	\| RETURN comma_expression_opt ';'
[bb7422a]	1671	{ $$ = new StatementNode( build_return( yylloc, $2 ) ); }
[c786e1d]	1672	\| RETURN '{' initializer_list_opt comma_opt '}' ';'
[fae90d5f]	1673	{ SemanticError( yylloc, "Initializer return is currently unimplemented." ); $$ = nullptr; }
[37cdd97]	1674	\| SUSPEND ';'
[bb7422a]	1675	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::None ) ); }
[9306559f]	1676	\| SUSPEND compound_statement
[bb7422a]	1677	{ $$ = new StatementNode( build_suspend( yylloc, $2, ast::SuspendStmt::None ) ); }
[37cdd97]	1678	\| SUSPEND COROUTINE ';'
[bb7422a]	1679	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1680	\| SUSPEND COROUTINE compound_statement
[bb7422a]	1681	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Coroutine ) ); }
[37cdd97]	1682	\| SUSPEND GENERATOR ';'
[bb7422a]	1683	{ $$ = new StatementNode( build_suspend( yylloc, nullptr, ast::SuspendStmt::Generator ) ); }
[37cdd97]	1684	\| SUSPEND GENERATOR compound_statement
[bb7422a]	1685	{ $$ = new StatementNode( build_suspend( yylloc, $3, ast::SuspendStmt::Generator ) ); }
[8cc5cb0]	1686	\| THROW assignment_expression_opt ';' // handles rethrow
[bb7422a]	1687	{ $$ = new StatementNode( build_throw( yylloc, $2 ) ); }
[8cc5cb0]	1688	\| THROWRESUME assignment_expression_opt ';' // handles reresume
[bb7422a]	1689	{ $$ = new StatementNode( build_resume( yylloc, $2 ) ); }
[8cc5cb0]	1690	\| THROWRESUME assignment_expression_opt AT assignment_expression ';' // handles reresume
[daf1af8]	1691	{ $$ = new StatementNode( build_resume_at( $2, $4 ) ); }
[4d51835]	1692	;
[51b73452]	1693
[6a276a0]	1694	fall_through_name: // CFA
	1695	FALLTHRU
	1696	\| FALLTHROUGH
	1697	;
	1698
[8b47e50]	1699	with_statement:
[5b2edbc]	1700	WITH '(' tuple_expression_list ')' statement
[bb7422a]	1701	{ $$ = new StatementNode( build_with( yylloc, $3, $5 ) ); }
[5b2edbc]	1702	;
	1703
[bf20567]	1704	// If MUTEX becomes a general qualifier, there are shift/reduce conflicts, so possibly change syntax to "with mutex".
[b6b3c42]	1705	mutex_statement:
[bf20567]	1706	MUTEX '(' argument_expression_list_opt ')' statement
	1707	{
[55266c7]	1708	if ( ! $3 ) { SemanticError( yylloc, "syntax error, mutex argument list cannot be empty." ); $$ = nullptr; }
[bb7422a]	1709	$$ = new StatementNode( build_mutex( yylloc, $3, $5 ) );
[bf20567]	1710	}
[b6b3c42]	1711	;
	1712
[51d6d6a]	1713	when_clause:
[6a276a0]	1714	WHEN '(' comma_expression ')' { $$ = $3; }
[51d6d6a]	1715	;
	1716
[5b2edbc]	1717	when_clause_opt:
	1718	// empty
[135b431]	1719	{ $$ = nullptr; }
[51d6d6a]	1720	\| when_clause
[5b2edbc]	1721	;
	1722
[4a063df]	1723	cast_expression_list:
	1724	cast_expression
	1725	\| cast_expression_list ',' cast_expression
[a491a3c]	1726	{ SemanticError( yylloc, "List of mutex member is currently unimplemented." ); $$ = nullptr; }
[5b2edbc]	1727	;
	1728
	1729	timeout:
[9fd9d015]	1730	TIMEOUT '(' comma_expression ')' { $$ = $3; }
[5b2edbc]	1731	;
	1732
[9fd9d015]	1733	wor:
	1734	OROR
	1735	\| WOR
	1736
	1737	waitfor:
	1738	WAITFOR '(' cast_expression ')'
	1739	{ $$ = $3; }
	1740	\| WAITFOR '(' cast_expression_list ':' argument_expression_list_opt ')'
[b93c544]	1741	{ $$ = $3->set_last( $5 ); }
[5b2edbc]	1742	;
	1743
[9fd9d015]	1744	wor_waitfor_clause:
[51d6d6a]	1745	when_clause_opt waitfor statement %prec THEN
[9fd9d015]	1746	// Called first: create header for WaitForStmt.
[bb7422a]	1747	{ $$ = build_waitfor( yylloc, new ast::WaitForStmt( yylloc ), $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[70056ed]	1748	\| wor_waitfor_clause wor when_clause_opt waitfor statement
[bb7422a]	1749	{ $$ = build_waitfor( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1750	\| wor_waitfor_clause wor when_clause_opt ELSE statement
[bb7422a]	1751	{ $$ = build_waitfor_else( yylloc, $1, $3, maybe_build_compound( yylloc, $5 ) ); }
[9fd9d015]	1752	\| wor_waitfor_clause wor when_clause_opt timeout statement %prec THEN
[bb7422a]	1753	{ $$ = build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ); }
[afe9e45]	1754	// "else" must be conditional after timeout or timeout is never triggered (i.e., it is meaningless)
[65ef0cd]	1755	\| wor_waitfor_clause wor when_clause_opt timeout statement wor ELSE statement // invalid syntax rule
[55266c7]	1756	{ SemanticError( yylloc, "syntax error, else clause must be conditional after timeout or timeout never triggered." ); $$ = nullptr; }
[9fd9d015]	1757	\| wor_waitfor_clause wor when_clause_opt timeout statement wor when_clause ELSE statement
[bb7422a]	1758	{ $$ = build_waitfor_else( yylloc, build_waitfor_timeout( yylloc, $1, $3, $4, maybe_build_compound( yylloc, $5 ) ), $7, maybe_build_compound( yylloc, $9 ) ); }
[5b2edbc]	1759	;
	1760
	1761	waitfor_statement:
[9fd9d015]	1762	wor_waitfor_clause %prec THEN
	1763	{ $$ = new StatementNode( $1 ); }
	1764	;
	1765
	1766	wand:
	1767	ANDAND
	1768	\| WAND
	1769	;
	1770
	1771	waituntil:
[04c78215]	1772	WAITUNTIL '(' comma_expression ')'
[9fd9d015]	1773	{ $$ = $3; }
	1774	;
	1775
	1776	waituntil_clause:
	1777	when_clause_opt waituntil statement
[c86b08d]	1778	{ $$ = build_waituntil_clause( yylloc, $1, $2, maybe_build_compound( yylloc, $3 ) ); }
[9fd9d015]	1779	\| '(' wor_waituntil_clause ')'
[c86b08d]	1780	{ $$ = $2; }
[9fd9d015]	1781	;
	1782
	1783	wand_waituntil_clause:
	1784	waituntil_clause %prec THEN
[c86b08d]	1785	{ $$ = $1; }
[9fd9d015]	1786	\| waituntil_clause wand wand_waituntil_clause
[c86b08d]	1787	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::AND, $1, $3 ); }
[9fd9d015]	1788	;
	1789
	1790	wor_waituntil_clause:
	1791	wand_waituntil_clause
[c86b08d]	1792	{ $$ = $1; }
[70056ed]	1793	\| wor_waituntil_clause wor wand_waituntil_clause
[c86b08d]	1794	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::OR, $1, $3 ); }
[9fd9d015]	1795	\| wor_waituntil_clause wor when_clause_opt ELSE statement
[c86b08d]	1796	{ $$ = new ast::WaitUntilStmt::ClauseNode( ast::WaitUntilStmt::ClauseNode::Op::LEFT_OR, $1, build_waituntil_else( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[9fd9d015]	1797	;
	1798
	1799	waituntil_statement:
	1800	wor_waituntil_clause %prec THEN
[f259682]	1801	{ $$ = new StatementNode( build_waituntil_stmt( yylloc, $1 ) ); }
[8b47e50]	1802	;
	1803
[11ab0b4a]	1804	corun_statement:
	1805	CORUN statement
[eb779d5]	1806	{ $$ = new StatementNode( build_corun( yylloc, $2 ) ); }
[11ab0b4a]	1807	;
	1808
	1809	cofor_statement:
	1810	COFOR '(' for_control_expression_list ')' statement
[3d9d017]	1811	{ $$ = new StatementNode( build_cofor( yylloc, $3, maybe_build_compound( yylloc, $5 ) ) ); }
[11ab0b4a]	1812	;
	1813
[51b73452]	1814	exception_statement:
[bb7422a]	1815	TRY compound_statement handler_clause %prec THEN
	1816	{ $$ = new StatementNode( build_try( yylloc, $2, $3, nullptr ) ); }
[4d51835]	1817	\| TRY compound_statement finally_clause
[bb7422a]	1818	{ $$ = new StatementNode( build_try( yylloc, $2, nullptr, $3 ) ); }
[cfaabe2c]	1819	\| TRY compound_statement handler_clause finally_clause
[bb7422a]	1820	{ $$ = new StatementNode( build_try( yylloc, $2, $3, $4 ) ); }
[4d51835]	1821	;
[51b73452]	1822
	1823	handler_clause:
[098f7ff]	1824	handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1825	{ $$ = new ClauseNode( build_catch( yylloc, $1, $4, $6, $8 ) ); }
[098f7ff]	1826	\| handler_clause handler_key '(' push exception_declaration pop handler_predicate_opt ')' compound_statement
[6611177]	1827	{ $$ = $1->set_last( new ClauseNode( build_catch( yylloc, $2, $5, $7, $9 ) ) ); }
[994d080]	1828	;
	1829
	1830	handler_predicate_opt:
[7fdb94e1]	1831	// empty
[cbce272]	1832	{ $$ = nullptr; }
[6a276a0]	1833	\| ';' conditional_expression { $$ = $2; }
[307a732]	1834	;
	1835
	1836	handler_key:
[bb7422a]	1837	CATCH { $$ = ast::Terminate; }
	1838	\| RECOVER { $$ = ast::Terminate; }
	1839	\| CATCHRESUME { $$ = ast::Resume; }
	1840	\| FIXUP { $$ = ast::Resume; }
[4d51835]	1841	;
[51b73452]	1842
	1843	finally_clause:
[6611177]	1844	FINALLY compound_statement { $$ = new ClauseNode( build_finally( yylloc, $2 ) ); }
[4d51835]	1845	;
[51b73452]	1846
	1847	exception_declaration:
[d0ffed1]	1848	// No SUE declaration in parameter list.
	1849	type_specifier_nobody
	1850	\| type_specifier_nobody declarator
[c0a33d2]	1851	{ $$ = $2->addType( $1 ); }
[d0ffed1]	1852	\| type_specifier_nobody variable_abstract_declarator
[4d51835]	1853	{ $$ = $2->addType( $1 ); }
[033ff37]	1854	\| cfa_abstract_declarator_tuple identifier // CFA
[c0a33d2]	1855	{ $$ = $1->addName( $2 ); }
[c0aa336]	1856	\| cfa_abstract_declarator_tuple // CFA
[4d51835]	1857	;
[51b73452]	1858
[2a8427c6]	1859	enable_disable_statement:
	1860	enable_disable_key identifier_list compound_statement
	1861	;
	1862
	1863	enable_disable_key:
	1864	ENABLE
	1865	\| DISABLE
	1866	;
	1867
[51b73452]	1868	asm_statement:
[ab57786]	1869	ASM asm_volatile_opt '(' string_literal ')' ';'
[bb7422a]	1870	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, nullptr ) ); }
[ab57786]	1871	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ')' ';' // remaining GCC
[bb7422a]	1872	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6 ) ); }
[ab57786]	1873	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ')' ';'
[bb7422a]	1874	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8 ) ); }
[ab57786]	1875	\| ASM asm_volatile_opt '(' string_literal ':' asm_operands_opt ':' asm_operands_opt ':' asm_clobbers_list_opt ')' ';'
[bb7422a]	1876	{ $$ = new StatementNode( build_asm( yylloc, $2, $4, $6, $8, $10 ) ); }
[ab57786]	1877	\| ASM asm_volatile_opt GOTO '(' string_literal ':' ':' asm_operands_opt ':' asm_clobbers_list_opt ':' label_list ')' ';'
[bb7422a]	1878	{ $$ = new StatementNode( build_asm( yylloc, $2, $5, nullptr, $8, $10, $12 ) ); }
[7f5566b]	1879	;
	1880
	1881	asm_volatile_opt: // GCC
	1882	// empty
	1883	{ $$ = false; }
	1884	\| VOLATILE
	1885	{ $$ = true; }
[4d51835]	1886	;
[b87a5ed]	1887
	1888	asm_operands_opt: // GCC
[4d51835]	1889	// empty
[58dd019]	1890	{ $$ = nullptr; } // use default argument
[4d51835]	1891	\| asm_operands_list
	1892	;
[b87a5ed]	1893
	1894	asm_operands_list: // GCC
[4d51835]	1895	asm_operand
	1896	\| asm_operands_list ',' asm_operand
[b93c544]	1897	{ $$ = $1->set_last( $3 ); }
[4d51835]	1898	;
[b87a5ed]	1899
	1900	asm_operand: // GCC
[ab57786]	1901	string_literal '(' constant_expression ')'
[32d6fdc]	1902	{ $$ = new ExpressionNode( new ast::AsmExpr( yylloc, "", maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[665f432]	1903	\| '[' IDENTIFIER ']' string_literal '(' constant_expression ')'
[bb7422a]	1904	{
[32d6fdc]	1905	$$ = new ExpressionNode( new ast::AsmExpr( yylloc, *$2.str, maybeMoveBuild( $4 ), maybeMoveBuild( $6 ) ) );
[bb7422a]	1906	delete $2.str;
	1907	}
[7f5566b]	1908	;
	1909
[4e06c1e]	1910	asm_clobbers_list_opt: // GCC
[7f5566b]	1911	// empty
[58dd019]	1912	{ $$ = nullptr; } // use default argument
[ab57786]	1913	\| string_literal
[32d6fdc]	1914	{ $$ = $1; }
[ab57786]	1915	\| asm_clobbers_list_opt ',' string_literal
[b93c544]	1916	{ $$ = $1->set_last( $3 ); }
[4d51835]	1917	;
[b87a5ed]	1918
[7f5566b]	1919	label_list:
[033ff37]	1920	identifier
[ab57786]	1921	{
[bb7422a]	1922	$$ = new LabelNode(); $$->labels.emplace_back( yylloc, *$1 );
[ab57786]	1923	delete $1; // allocated by lexer
	1924	}
[033ff37]	1925	\| label_list ',' identifier
[ab57786]	1926	{
[bb7422a]	1927	$$ = $1; $1->labels.emplace_back( yylloc, *$3 );
[ab57786]	1928	delete $3; // allocated by lexer
	1929	}
[4d51835]	1930	;
[51b73452]	1931
[e1d66c84]	1932	// **************************** DECLARATIONS *******************************
[51b73452]	1933
[b87a5ed]	1934	declaration_list_opt: // used at beginning of switch statement
[35718a9]	1935	// empty
[58dd019]	1936	{ $$ = nullptr; }
[4d51835]	1937	\| declaration_list
	1938	;
[51b73452]	1939
	1940	declaration_list:
[4d51835]	1941	declaration
[647e2ea]	1942	\| declaration_list declaration
	1943	{ $$ = $1->set_last( $2 ); }
[4d51835]	1944	;
[51b73452]	1945
[407bde5]	1946	KR_parameter_list_opt: // used to declare parameter types in K&R style functions
[4cc585b]	1947	// empty
[58dd019]	1948	{ $$ = nullptr; }
[35718a9]	1949	\| KR_parameter_list
[4d51835]	1950	;
[51b73452]	1951
[35718a9]	1952	KR_parameter_list:
[c25f16b]	1953	c_declaration ';'
	1954	{ $$ = $1; }
	1955	\| KR_parameter_list c_declaration ';'
[dc3fbe5]	1956	{ $$ = $1->set_last( $2 ); }
[4d51835]	1957	;
[b87a5ed]	1958
[51b1202]	1959	local_label_declaration_opt: // GCC, local label
[4d51835]	1960	// empty
[51b1202]	1961	\| local_label_declaration_list
[4d51835]	1962	;
[b87a5ed]	1963
[51b1202]	1964	local_label_declaration_list: // GCC, local label
	1965	LABEL local_label_list ';'
	1966	\| local_label_declaration_list LABEL local_label_list ';'
[4d51835]	1967	;
[b87a5ed]	1968
[51b1202]	1969	local_label_list: // GCC, local label
[033ff37]	1970	identifier_or_type_name
	1971	\| local_label_list ',' identifier_or_type_name
[4d51835]	1972	;
[b87a5ed]	1973
[936e9f4]	1974	declaration: // old & new style declarations
[35718a9]	1975	c_declaration ';'
	1976	\| cfa_declaration ';' // CFA
[b47b827]	1977	\| static_assert // C11
[4d51835]	1978	;
[b87a5ed]	1979
[b9be000b]	1980	static_assert:
	1981	STATICASSERT '(' constant_expression ',' string_literal ')' ';' // C11
[32d6fdc]	1982	{ $$ = DeclarationNode::newStaticAssert( $3, maybeMoveBuild( $5 ) ); }
[b47b827]	1983	\| STATICASSERT '(' constant_expression ')' ';' // CFA
[bb7422a]	1984	{ $$ = DeclarationNode::newStaticAssert( $3, build_constantStr( yylloc, *new string( "\"\"" ) ) ); }
[b9be000b]	1985
[de62360d]	1986	// C declaration syntax is notoriously confusing and error prone. Cforall provides its own type, variable and function
	1987	// declarations. CFA declarations use the same declaration tokens as in C; however, CFA places declaration modifiers to
	1988	// the left of the base type, while C declarations place modifiers to the right of the base type. CFA declaration
	1989	// modifiers are interpreted from left to right and the entire type specification is distributed across all variables in
	1990	// the declaration list (as in Pascal). ANSI C and the new CFA declarations may appear together in the same program
	1991	// block, but cannot be mixed within a specific declaration.
[c11e31c]	1992	//
[b87a5ed]	1993	// CFA C
	1994	// [10] int x; int x[10]; // array of 10 integers
	1995	// [10] * char y; char *y[10]; // array of 10 pointers to char
	1996
[c0aa336]	1997	cfa_declaration: // CFA
[4cc585b]	1998	cfa_variable_declaration
	1999	\| cfa_typedef_declaration
	2000	\| cfa_function_declaration
	2001	\| type_declaring_list
[2501ae5]	2002	{ SemanticError( yylloc, "otype declaration is currently unimplemented." ); $$ = nullptr; }
[4cc585b]	2003	\| trait_specifier
[4d51835]	2004	;
[b87a5ed]	2005
[c0aa336]	2006	cfa_variable_declaration: // CFA
	2007	cfa_variable_specifier initializer_opt
[7fdb94e1]	2008	{ $$ = $1->addInitializer( $2 ); }
[c0aa336]	2009	\| declaration_qualifier_list cfa_variable_specifier initializer_opt
[de62360d]	2010	// declaration_qualifier_list also includes type_qualifier_list, so a semantic check is necessary to preclude
	2011	// them as a type_qualifier cannot appear in that context.
[7fdb94e1]	2012	{ $$ = $2->addQualifiers( $1 )->addInitializer( $3 ); }
[c0aa336]	2013	\| cfa_variable_declaration pop ',' push identifier_or_type_name initializer_opt
[dc3fbe5]	2014	{ $$ = $1->set_last( $1->cloneType( $5 )->addInitializer( $6 ) ); }
[4d51835]	2015	;
[b87a5ed]	2016
[c0aa336]	2017	cfa_variable_specifier: // CFA
[de62360d]	2018	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2019	// storage-class
[c0aa336]	2020	cfa_abstract_declarator_no_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2021	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2022	\| cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2023	{ $$ = $1->addName( $2 )->addAsmName( $3 ); }
[c0aa336]	2024	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name asm_name_opt
[7fdb94e1]	2025	{ $$ = $2->addQualifiers( $1 )->addName( $3 )->addAsmName( $4 ); }
[4d51835]	2026	;
[b87a5ed]	2027
[c0aa336]	2028	cfa_function_declaration: // CFA
	2029	cfa_function_specifier
	2030	\| type_qualifier_list cfa_function_specifier
[7fdb94e1]	2031	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2032	\| declaration_qualifier_list cfa_function_specifier
[7fdb94e1]	2033	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	2034	\| declaration_qualifier_list type_qualifier_list cfa_function_specifier
[7fdb94e1]	2035	{ $$ = $3->addQualifiers( $1 )->addQualifiers( $2 ); }
[647e2ea]	2036	\| cfa_function_declaration ',' identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')'
[4d51835]	2037	{
[481115f]	2038	// Append the return type at the start (left-hand-side) to each identifier in the list.
	2039	DeclarationNode * ret = new DeclarationNode;
[5bf685f]	2040	ret->type = maybeCopy( $1->type->base );
[dc3fbe5]	2041	$$ = $1->set_last( DeclarationNode::newFunction( $3, ret, $6, nullptr ) );
[4d51835]	2042	}
	2043	;
[b87a5ed]	2044
[c0aa336]	2045	cfa_function_specifier: // CFA
[647e2ea]	2046	'[' ']' identifier '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2047	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2048	\| '[' ']' TYPEDEFname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2049	{ $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2050	// \| '[' ']' TYPEGENname '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
	2051	// { $$ = DeclarationNode::newFunction( $3, DeclarationNode::newTuple( nullptr ), $6, nullptr )->addQualifiers( $9 ); }
	2052
[2871210]	2053	// identifier_or_type_name must be broken apart because of the sequence:
[4d51835]	2054	//
[647e2ea]	2055	// '[' ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[4d51835]	2056	// '[' ']' type_specifier
	2057	//
[2871210]	2058	// type_specifier can resolve to just TYPEDEFname (e.g., typedef int T; int f( T );). Therefore this must be
	2059	// flattened to allow lookahead to the '(' without having to reduce identifier_or_type_name.
[647e2ea]	2060	\| cfa_abstract_tuple identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[c0aa336]	2061	// To obtain LR(1 ), this rule must be factored out from function return type (see cfa_abstract_declarator).
[a5f9444]	2062	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[647e2ea]	2063	\| cfa_function_return identifier_or_type_name '(' push cfa_parameter_list_ellipsis_opt pop ')' attribute_list_opt
[a5f9444]	2064	{ $$ = DeclarationNode::newFunction( $2, $1, $5, nullptr )->addQualifiers( $8 ); }
[4d51835]	2065	;
[b87a5ed]	2066
[c0aa336]	2067	cfa_function_return: // CFA
[c0a33d2]	2068	'[' push cfa_parameter_list pop ']'
	2069	{ $$ = DeclarationNode::newTuple( $3 ); }
[647e2ea]	2070	\| '[' push cfa_parameter_list ',' cfa_abstract_parameter_list pop ']'
[b048dc3]	2071	// To obtain LR(1 ), the last cfa_abstract_parameter_list is added into this flattened rule to lookahead to the ']'.
[647e2ea]	2072	{ $$ = DeclarationNode::newTuple( $3->set_last( $5 ) ); }
[4d51835]	2073	;
[b87a5ed]	2074
[c0aa336]	2075	cfa_typedef_declaration: // CFA
	2076	TYPEDEF cfa_variable_specifier
[4d51835]	2077	{
[71a422a]	2078	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 1" );
[4d51835]	2079	$$ = $2->addTypedef();
	2080	}
[c0aa336]	2081	\| TYPEDEF cfa_function_specifier
[4d51835]	2082	{
[71a422a]	2083	typedefTable.addToEnclosingScope( *$2->name, TYPEDEFname, "cfa_typedef_declaration 2" );
[4d51835]	2084	$$ = $2->addTypedef();
	2085	}
[647e2ea]	2086	\| cfa_typedef_declaration ',' identifier
[4d51835]	2087	{
[647e2ea]	2088	typedefTable.addToEnclosingScope( *$3, TYPEDEFname, "cfa_typedef_declaration 3" );
	2089	$$ = $1->set_last( $1->cloneType( $3 ) );
[4d51835]	2090	}
	2091	;
[b87a5ed]	2092
[de62360d]	2093	// Traditionally typedef is part of storage-class specifier for syntactic convenience only. Here, it is factored out as
	2094	// a separate form of declaration, which syntactically precludes storage-class specifiers and initialization.
[51b73452]	2095
	2096	typedef_declaration:
[4d51835]	2097	TYPEDEF type_specifier declarator
	2098	{
[71a422a]	2099	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 1" );
[ac235a8]	2100	if ( $2->type->forall \|\| ($2->type->kind == TypeData::Aggregate && $2->type->aggregate.params) ) {
	2101	SemanticError( yylloc, "forall qualifier in typedef is currently unimplemented." ); $$ = nullptr;
	2102	} else $$ = $3->addType( $2 )->addTypedef(); // watchout frees $2 and $3
[4d51835]	2103	}
[c25f16b]	2104	\| typedef_declaration ',' declarator
[4d51835]	2105	{
[c25f16b]	2106	typedefTable.addToEnclosingScope( *$3->name, TYPEDEFname, "typedef_declaration 2" );
[dc3fbe5]	2107	$$ = $1->set_last( $1->cloneBaseType( $3 )->addTypedef() );
[4d51835]	2108	}
[de62360d]	2109	\| type_qualifier_list TYPEDEF type_specifier declarator // remaining OBSOLESCENT (see 2 )
[ac235a8]	2110	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2111	\| type_specifier TYPEDEF declarator
[ac235a8]	2112	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2113	\| type_specifier TYPEDEF type_qualifier_list declarator
[ac235a8]	2114	{ SemanticError( yylloc, "Type qualifiers/specifiers before TYPEDEF is deprecated, move after TYPEDEF." ); $$ = nullptr; }
[4d51835]	2115	;
[b87a5ed]	2116
[721f17a]	2117	typedef_expression:
[25744d2]	2118	// deprecated GCC, naming expression type: typedef name = exp; gives a name to the type of an expression
[033ff37]	2119	TYPEDEF identifier '=' assignment_expression
[4d51835]	2120	{
[ac235a8]	2121	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2122	}
[c25f16b]	2123	\| typedef_expression ',' identifier '=' assignment_expression
[4d51835]	2124	{
[ac235a8]	2125	SemanticError( yylloc, "TYPEDEF expression is deprecated, use typeof(...) instead." ); $$ = nullptr;
[4d51835]	2126	}
	2127	;
[51b73452]	2128
[c0aa336]	2129	c_declaration:
[4cc585b]	2130	declaration_specifier declaring_list
[7fdb94e1]	2131	{ $$ = distAttr( $1, $2 ); }
[4cc585b]	2132	\| typedef_declaration
[25744d2]	2133	\| typedef_expression // deprecated GCC, naming expression type
[4cc585b]	2134	\| sue_declaration_specifier
[0bcd707]	2135	{
	2136	assert( $1->type );
[1a73dbb]	2137	if ( $1->type->qualifiers.any() ) { // CV qualifiers ?
[55266c7]	2138	SemanticError( yylloc, "syntax error, useless type qualifier(s) in empty declaration." ); $$ = nullptr;
[1a73dbb]	2139	}
	2140	// enums are never empty declarations because there must have at least one enumeration.
	2141	if ( $1->type->kind == TypeData::AggregateInst && $1->storageClasses.any() ) { // storage class ?
[55266c7]	2142	SemanticError( yylloc, "syntax error, useless storage qualifier(s) in empty aggregate declaration." ); $$ = nullptr;
[0bcd707]	2143	}
	2144	}
[4d51835]	2145	;
[51b73452]	2146
	2147	declaring_list:
[de62360d]	2148	// A semantic check is required to ensure asm_name only appears on declarations with implicit or explicit static
	2149	// storage-class
[1f771fc]	2150	variable_declarator asm_name_opt initializer_opt
[7fdb94e1]	2151	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2152	\| variable_type_redeclarator asm_name_opt initializer_opt
[7fdb94e1]	2153	{ $$ = $1->addAsmName( $2 )->addInitializer( $3 ); }
[1f771fc]	2154
	2155	\| general_function_declarator asm_name_opt
	2156	{ $$ = $1->addAsmName( $2 )->addInitializer( nullptr ); }
	2157	\| general_function_declarator asm_name_opt '=' VOID
	2158	{ $$ = $1->addAsmName( $2 )->addInitializer( new InitializerNode( true ) ); }
	2159
[4d51835]	2160	\| declaring_list ',' attribute_list_opt declarator asm_name_opt initializer_opt
[dc3fbe5]	2161	{ $$ = $1->set_last( $4->addQualifiers( $3 )->addAsmName( $5 )->addInitializer( $6 ) ); }
[4d51835]	2162	;
[b87a5ed]	2163
[1f771fc]	2164	general_function_declarator:
	2165	function_type_redeclarator
	2166	\| function_declarator
	2167	;
	2168
[b87a5ed]	2169	declaration_specifier: // type specifier + storage class
[4d51835]	2170	basic_declaration_specifier
[84d58c5]	2171	\| type_declaration_specifier
[79a6b17]	2172	\| sue_declaration_specifier
[0442f93f]	2173	\| sue_declaration_specifier invalid_types // invalid syntax rule
[79a6b17]	2174	{
[b1f2007d]	2175	SemanticError( yylloc, "syntax error, expecting ';' at end of \"%s\" declaration.",
[67467a3]	2176	ast::AggregateDecl::aggrString( $1->type->aggregate.kind ) );
[79a6b17]	2177	$$ = nullptr;
	2178	}
	2179	;
	2180
	2181	invalid_types:
	2182	aggregate_key
	2183	\| basic_type_name
	2184	\| indirect_type
[4d51835]	2185	;
[b87a5ed]	2186
[d0ffed1]	2187	declaration_specifier_nobody: // type specifier + storage class - {...}
	2188	// Preclude SUE declarations in restricted scopes:
	2189	//
	2190	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2191	//
	2192	// because it is impossible to call f due to name equivalence.
	2193	basic_declaration_specifier
	2194	\| sue_declaration_specifier_nobody
[84d58c5]	2195	\| type_declaration_specifier
[d0ffed1]	2196	;
	2197
	2198	type_specifier: // type specifier
[4d51835]	2199	basic_type_specifier
	2200	\| sue_type_specifier
[84d58c5]	2201	\| type_type_specifier
[4d51835]	2202	;
[b87a5ed]	2203
[d0ffed1]	2204	type_specifier_nobody: // type specifier - {...}
	2205	// Preclude SUE declarations in restricted scopes:
	2206	//
	2207	// int f( struct S { int i; } s1, Struct S s2 ) { struct S s3; ... }
	2208	//
	2209	// because it is impossible to call f due to name equivalence.
	2210	basic_type_specifier
	2211	\| sue_type_specifier_nobody
[84d58c5]	2212	\| type_type_specifier
[d0ffed1]	2213	;
	2214
[b87a5ed]	2215	type_qualifier_list_opt: // GCC, used in asm_statement
[4d51835]	2216	// empty
[58dd019]	2217	{ $$ = nullptr; }
[4d51835]	2218	\| type_qualifier_list
	2219	;
[51b73452]	2220
	2221	type_qualifier_list:
[de62360d]	2222	// A semantic check is necessary to ensure a type qualifier is appropriate for the kind of declaration.
[4d51835]	2223	//
[de62360d]	2224	// ISO/IEC 9899:1999 Section 6.7.3(4 ) : If the same qualifier appears more than once in the same
	2225	// specifier-qualifier-list, either directly or via one or more typedefs, the behavior is the same as if it
	2226	// appeared only once.
[4d51835]	2227	type_qualifier
	2228	\| type_qualifier_list type_qualifier
	2229	{ $$ = $1->addQualifiers( $2 ); }
	2230	;
[51b73452]	2231
	2232	type_qualifier:
[4d51835]	2233	type_qualifier_name
[6cef439]	2234	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[b1f2007d]	2235	\| attribute // trick handles most attribute locations
[4d51835]	2236	;
[51b73452]	2237
	2238	type_qualifier_name:
[4d51835]	2239	CONST
[6cef439]	2240	{ $$ = build_type_qualifier( ast::CV::Const ); }
[4d51835]	2241	\| RESTRICT
[6cef439]	2242	{ $$ = build_type_qualifier( ast::CV::Restrict ); }
[4d51835]	2243	\| VOLATILE
[6cef439]	2244	{ $$ = build_type_qualifier( ast::CV::Volatile ); }
[4d51835]	2245	\| ATOMIC
[6cef439]	2246	{ $$ = build_type_qualifier( ast::CV::Atomic ); }
[7e13b11]	2247
[446740a]	2248	// forall is a CV qualifier because it can appear in places where SC qualifiers are disallowed.
[7e13b11]	2249	//
	2250	// void foo( forall( T ) T (*)( T ) ); // forward declaration
	2251	// void bar( static int ); // static disallowed (gcc/CFA)
[a16a7ec]	2252	\| forall
[6cef439]	2253	{ $$ = build_forall( $1 ); }
[a16a7ec]	2254	;
	2255
	2256	forall:
[35718a9]	2257	FORALL '(' type_parameter_list ')' // CFA
[7a24d76]	2258	{ $$ = $3; }
[4d51835]	2259	;
[51b73452]	2260
	2261	declaration_qualifier_list:
[4d51835]	2262	storage_class_list
[de62360d]	2263	\| type_qualifier_list storage_class_list // remaining OBSOLESCENT (see 2 )
[4d51835]	2264	{ $$ = $1->addQualifiers( $2 ); }
	2265	\| declaration_qualifier_list type_qualifier_list storage_class_list
	2266	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2267	;
[51b73452]	2268
	2269	storage_class_list:
[de62360d]	2270	// A semantic check is necessary to ensure a storage class is appropriate for the kind of declaration and that
	2271	// only one of each is specified, except for inline, which can appear with the others.
[4d51835]	2272	//
[de62360d]	2273	// ISO/IEC 9899:1999 Section 6.7.1(2) : At most, one storage-class specifier may be given in the declaration
	2274	// specifiers in a declaration.
[4d51835]	2275	storage_class
	2276	\| storage_class_list storage_class
	2277	{ $$ = $1->addQualifiers( $2 ); }
	2278	;
[51b73452]	2279
	2280	storage_class:
[4d51835]	2281	EXTERN
[36e6f10]	2282	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Extern ); }
[4d51835]	2283	\| STATIC
[36e6f10]	2284	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Static ); }
[4d51835]	2285	\| AUTO
[36e6f10]	2286	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Auto ); }
[4d51835]	2287	\| REGISTER
[36e6f10]	2288	{ $$ = DeclarationNode::newStorageClass( ast::Storage::Register ); }
[ed9a1ae]	2289	\| THREADLOCALGCC // GCC
[36e6f10]	2290	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalGcc ); }
[ed9a1ae]	2291	\| THREADLOCALC11 // C11
[36e6f10]	2292	{ $$ = DeclarationNode::newStorageClass( ast::Storage::ThreadLocalC11 ); }
[dd020c0]	2293	// Put function specifiers here to simplify parsing rules, but separate them semantically.
[4d51835]	2294	\| INLINE // C99
[36e6f10]	2295	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Inline ); }
[4d51835]	2296	\| FORTRAN // C99
[36e6f10]	2297	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Fortran ); }
[68cd1ce]	2298	\| NORETURN // C11
[36e6f10]	2299	{ $$ = DeclarationNode::newFuncSpecifier( ast::Function::Noreturn ); }
[4d51835]	2300	;
[51b73452]	2301
	2302	basic_type_name:
[6cef439]	2303	basic_type_name_type
	2304	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
	2305	;
	2306
	2307	// Just an intermediate value for conversion.
	2308	basic_type_name_type:
[201aeb9]	2309	VOID
[e048ece]	2310	{ $$ = build_basic_type( TypeData::Void ); }
[4d51835]	2311	\| BOOL // C99
[e048ece]	2312	{ $$ = build_basic_type( TypeData::Bool ); }
[201aeb9]	2313	\| CHAR
[e048ece]	2314	{ $$ = build_basic_type( TypeData::Char ); }
[201aeb9]	2315	\| INT
[e048ece]	2316	{ $$ = build_basic_type( TypeData::Int ); }
[201aeb9]	2317	\| INT128
[e048ece]	2318	{ $$ = build_basic_type( TypeData::Int128 ); }
[f1da02c]	2319	\| UINT128
[e048ece]	2320	{ $$ = addType( build_basic_type( TypeData::Int128 ), build_signedness( TypeData::Unsigned ) ); }
[201aeb9]	2321	\| FLOAT
[e048ece]	2322	{ $$ = build_basic_type( TypeData::Float ); }
[201aeb9]	2323	\| DOUBLE
[e048ece]	2324	{ $$ = build_basic_type( TypeData::Double ); }
[e15853c]	2325	\| uuFLOAT80
[e048ece]	2326	{ $$ = build_basic_type( TypeData::uuFloat80 ); }
[e15853c]	2327	\| uuFLOAT128
[e048ece]	2328	{ $$ = build_basic_type( TypeData::uuFloat128 ); }
[e15853c]	2329	\| uFLOAT16
[e048ece]	2330	{ $$ = build_basic_type( TypeData::uFloat16 ); }
[e15853c]	2331	\| uFLOAT32
[e048ece]	2332	{ $$ = build_basic_type( TypeData::uFloat32 ); }
[e15853c]	2333	\| uFLOAT32X
[e048ece]	2334	{ $$ = build_basic_type( TypeData::uFloat32x ); }
[e15853c]	2335	\| uFLOAT64
[e048ece]	2336	{ $$ = build_basic_type( TypeData::uFloat64 ); }
[e15853c]	2337	\| uFLOAT64X
[e048ece]	2338	{ $$ = build_basic_type( TypeData::uFloat64x ); }
[e15853c]	2339	\| uFLOAT128
[e048ece]	2340	{ $$ = build_basic_type( TypeData::uFloat128 ); }
[15f769c]	2341	\| DECIMAL32
	2342	{ SemanticError( yylloc, "_Decimal32 is currently unimplemented." ); $$ = nullptr; }
	2343	\| DECIMAL64
	2344	{ SemanticError( yylloc, "_Decimal64 is currently unimplemented." ); $$ = nullptr; }
	2345	\| DECIMAL128
	2346	{ SemanticError( yylloc, "_Decimal128 is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2347	\| COMPLEX // C99
[e048ece]	2348	{ $$ = build_complex_type( TypeData::Complex ); }
[4d51835]	2349	\| IMAGINARY // C99
[e048ece]	2350	{ $$ = build_complex_type( TypeData::Imaginary ); }
[201aeb9]	2351	\| SIGNED
[e048ece]	2352	{ $$ = build_signedness( TypeData::Signed ); }
[201aeb9]	2353	\| UNSIGNED
[e048ece]	2354	{ $$ = build_signedness( TypeData::Unsigned ); }
[201aeb9]	2355	\| SHORT
[e048ece]	2356	{ $$ = build_length( TypeData::Short ); }
[201aeb9]	2357	\| LONG
[e048ece]	2358	{ $$ = build_length( TypeData::Long ); }
[59c7e3e]	2359	\| VA_LIST // GCC, __builtin_va_list
[e048ece]	2360	{ $$ = build_builtin_type( TypeData::Valist ); }
[f673c13c]	2361	\| AUTO_TYPE
[e048ece]	2362	{ $$ = build_builtin_type( TypeData::AutoType ); }
[1f652a7]	2363	\| vtable
	2364	;
	2365
	2366	vtable_opt:
	2367	// empty
	2368	{ $$ = nullptr; }
[9380add]	2369	\| vtable
[1f652a7]	2370	;
	2371
	2372	vtable:
[8f6f3729]	2373	VTABLE '(' type_name ')' default_opt
[6cef439]	2374	{ $$ = build_vtable_type( $3 ); }
[1f652a7]	2375	;
	2376
	2377	default_opt:
	2378	// empty
	2379	{ $$ = nullptr; }
	2380	\| DEFAULT
	2381	{ SemanticError( yylloc, "vtable default is currently unimplemented." ); $$ = nullptr; }
[4d51835]	2382	;
[51b73452]	2383
	2384	basic_declaration_specifier:
[4d51835]	2385	// A semantic check is necessary for conflicting storage classes.
	2386	basic_type_specifier
	2387	\| declaration_qualifier_list basic_type_specifier
	2388	{ $$ = $2->addQualifiers( $1 ); }
	2389	\| basic_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2390	{ $$ = $1->addQualifiers( $2 ); }
	2391	\| basic_declaration_specifier storage_class type_qualifier_list
	2392	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2393	\| basic_declaration_specifier storage_class basic_type_specifier
	2394	{ $$ = $3->addQualifiers( $2 )->addType( $1 ); }
	2395	;
[51b73452]	2396
	2397	basic_type_specifier:
[84d58c5]	2398	direct_type
[f38e7d7]	2399	// Cannot have type modifiers, e.g., short, long, etc.
[84d58c5]	2400	\| type_qualifier_list_opt indirect_type type_qualifier_list_opt
[4d51835]	2401	{ $$ = $2->addQualifiers( $1 )->addQualifiers( $3 ); }
	2402	;
[51b73452]	2403
[84d58c5]	2404	direct_type:
[4d51835]	2405	basic_type_name
	2406	\| type_qualifier_list basic_type_name
	2407	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2408	\| direct_type type_qualifier
[4d51835]	2409	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2410	\| direct_type basic_type_name
[4d51835]	2411	{ $$ = $1->addType( $2 ); }
	2412	;
[51b73452]	2413
[84d58c5]	2414	indirect_type:
[b6ad601]	2415	TYPEOF '(' type ')' // GCC: typeof( x ) y;
[4d51835]	2416	{ $$ = $3; }
[b6ad601]	2417	\| TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y;
[4d51835]	2418	{ $$ = DeclarationNode::newTypeof( $3 ); }
[b6ad601]	2419	\| BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y;
[bb7422a]	2420	{ $$ = DeclarationNode::newTypeof( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ), true ); }
[b6ad601]	2421	\| BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y;
	2422	{ $$ = DeclarationNode::newTypeof( $3, true ); }
[f38e7d7]	2423	\| ZERO_T // CFA
[e048ece]	2424	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::Zero ) ); }
[f38e7d7]	2425	\| ONE_T // CFA
[e048ece]	2426	{ $$ = DeclarationNode::newFromTypeData( build_builtin_type( TypeData::One ) ); }
[4d51835]	2427	;
[51b73452]	2428
[d0ffed1]	2429	sue_declaration_specifier: // struct, union, enum + storage class + type specifier
[4d51835]	2430	sue_type_specifier
	2431	\| declaration_qualifier_list sue_type_specifier
	2432	{ $$ = $2->addQualifiers( $1 ); }
	2433	\| sue_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
	2434	{ $$ = $1->addQualifiers( $2 ); }
	2435	\| sue_declaration_specifier storage_class type_qualifier_list
	2436	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2437	;
[51b73452]	2438
[d0ffed1]	2439	sue_type_specifier: // struct, union, enum + type specifier
	2440	elaborated_type
[fdca7c6]	2441	\| type_qualifier_list
	2442	{ if ( $1->type != nullptr && $1->type->forall ) forall = true; } // remember generic type
	2443	elaborated_type
	2444	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	2445	\| sue_type_specifier type_qualifier
[284da8c]	2446	{
	2447	if ( $2->type != nullptr && $2->type->forall ) forall = true; // remember generic type
	2448	$$ = $1->addQualifiers( $2 );
	2449	}
[4d51835]	2450	;
[51b73452]	2451
[d0ffed1]	2452	sue_declaration_specifier_nobody: // struct, union, enum - {...} + storage class + type specifier
	2453	sue_type_specifier_nobody
	2454	\| declaration_qualifier_list sue_type_specifier_nobody
	2455	{ $$ = $2->addQualifiers( $1 ); }
	2456	\| sue_declaration_specifier_nobody storage_class // remaining OBSOLESCENT (see 2)
	2457	{ $$ = $1->addQualifiers( $2 ); }
	2458	\| sue_declaration_specifier_nobody storage_class type_qualifier_list
	2459	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2460	;
	2461
	2462	sue_type_specifier_nobody: // struct, union, enum - {...} + type specifier
	2463	elaborated_type_nobody
	2464	\| type_qualifier_list elaborated_type_nobody
	2465	{ $$ = $2->addQualifiers( $1 ); }
	2466	\| sue_type_specifier_nobody type_qualifier
	2467	{ $$ = $1->addQualifiers( $2 ); }
	2468	;
	2469
[84d58c5]	2470	type_declaration_specifier:
	2471	type_type_specifier
	2472	\| declaration_qualifier_list type_type_specifier
[4d51835]	2473	{ $$ = $2->addQualifiers( $1 ); }
[84d58c5]	2474	\| type_declaration_specifier storage_class // remaining OBSOLESCENT (see 2)
[4d51835]	2475	{ $$ = $1->addQualifiers( $2 ); }
[84d58c5]	2476	\| type_declaration_specifier storage_class type_qualifier_list
[4d51835]	2477	{ $$ = $1->addQualifiers( $2 )->addQualifiers( $3 ); }
	2478	;
[b87a5ed]	2479
[84d58c5]	2480	type_type_specifier: // typedef types
	2481	type_name
[6cef439]	2482	{ $$ = DeclarationNode::newFromTypeData( $1 ); }
[84d58c5]	2483	\| type_qualifier_list type_name
[6cef439]	2484	{ $$ = DeclarationNode::newFromTypeData( $2 )->addQualifiers( $1 ); }
[84d58c5]	2485	\| type_type_specifier type_qualifier
	2486	{ $$ = $1->addQualifiers( $2 ); }
	2487	;
	2488
	2489	type_name:
[4d51835]	2490	TYPEDEFname
[6cef439]	2491	{ $$ = build_typedef( $1 ); }
[84d58c5]	2492	\| '.' TYPEDEFname
[6cef439]	2493	{ $$ = build_qualified_type( build_global_scope(), build_typedef( $2 ) ); }
[84d58c5]	2494	\| type_name '.' TYPEDEFname
[6cef439]	2495	{ $$ = build_qualified_type( $1, build_typedef( $3 ) ); }
[84d58c5]	2496	\| typegen_name
	2497	\| '.' typegen_name
[6cef439]	2498	{ $$ = build_qualified_type( build_global_scope(), $2 ); }
[84d58c5]	2499	\| type_name '.' typegen_name
[6cef439]	2500	{ $$ = build_qualified_type( $1, $3 ); }
[84d58c5]	2501	;
	2502
	2503	typegen_name: // CFA
[65d6de4]	2504	TYPEGENname
[6cef439]	2505	{ $$ = build_type_gen( $1, nullptr ); }
[65d6de4]	2506	\| TYPEGENname '(' ')'
[6cef439]	2507	{ $$ = build_type_gen( $1, nullptr ); }
[67cf18c]	2508	\| TYPEGENname '(' type_list ')'
[6cef439]	2509	{ $$ = build_type_gen( $1, $3 ); }
[4d51835]	2510	;
[51b73452]	2511
[d0ffed1]	2512	elaborated_type: // struct, union, enum
[c0aa336]	2513	aggregate_type
	2514	\| enum_type
[4d51835]	2515	;
[51b73452]	2516
[d0ffed1]	2517	elaborated_type_nobody: // struct, union, enum - {...}
	2518	aggregate_type_nobody
	2519	\| enum_type_nobody
	2520	;
	2521
[7e13b11]	2522	// ************************ AGGREGATE *****************************
	2523
[d0ffed1]	2524	aggregate_type: // struct, union
[fc20514]	2525	aggregate_key attribute_list_opt
	2526	{ forall = false; } // reset
	2527	'{' field_declaration_list_opt '}' type_parameters_opt
[777ed2b]	2528	{ $$ = DeclarationNode::newAggregate( $1, nullptr, $7, $5, true )->addQualifiers( $2 ); }
[73f04fd]	2529	\| aggregate_key attribute_list_opt identifier
[fdca7c6]	2530	{
[71a422a]	2531	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 1" );
[fdca7c6]	2532	forall = false; // reset
	2533	}
[284da8c]	2534	'{' field_declaration_list_opt '}' type_parameters_opt
[d8454b9]	2535	{
	2536	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2537	}
[f9c3100]	2538	\| aggregate_key attribute_list_opt TYPEDEFname // unqualified type name
[407bde5]	2539	{
[71a422a]	2540	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 2" );
[407bde5]	2541	forall = false; // reset
	2542	}
[284da8c]	2543	'{' field_declaration_list_opt '}' type_parameters_opt
[f9c3100]	2544	{
[6cef439]	2545	DeclarationNode::newFromTypeData( build_typedef( $3 ) );
[f9c3100]	2546	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2547	}
	2548	\| aggregate_key attribute_list_opt TYPEGENname // unqualified type name
	2549	{
[71a422a]	2550	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type: 3" );
[f9c3100]	2551	forall = false; // reset
	2552	}
	2553	'{' field_declaration_list_opt '}' type_parameters_opt
	2554	{
[6cef439]	2555	DeclarationNode::newFromTypeData( build_type_gen( $3, nullptr ) );
[f9c3100]	2556	$$ = DeclarationNode::newAggregate( $1, $3, $8, $6, true )->addQualifiers( $2 );
	2557	}
[d0ffed1]	2558	\| aggregate_type_nobody
	2559	;
	2560
[284da8c]	2561	type_parameters_opt:
	2562	// empty
	2563	{ $$ = nullptr; } %prec '}'
	2564	\| '(' type_list ')'
	2565	{ $$ = $2; }
	2566	;
	2567
[d0ffed1]	2568	aggregate_type_nobody: // struct, union - {...}
[73f04fd]	2569	aggregate_key attribute_list_opt identifier
[84d58c5]	2570	{
[71a422a]	2571	typedefTable.makeTypedef( *$3, forall \|\| typedefTable.getEnclForall() ? TYPEGENname : TYPEDEFname, "aggregate_type_nobody" );
[9997fee]	2572	forall = false; // reset
[84d58c5]	2573	$$ = DeclarationNode::newAggregate( $1, $3, nullptr, nullptr, false )->addQualifiers( $2 );
	2574	}
[73f04fd]	2575	\| aggregate_key attribute_list_opt type_name
[65d6de4]	2576	{
[fc20514]	2577	forall = false; // reset
[65d6de4]	2578	// Create new generic declaration with same name as previous forward declaration, where the IDENTIFIER is
	2579	// switched to a TYPEGENname. Link any generic arguments from typegen_name to new generic declaration and
[446740a]	2580	// delete newFromTypeGen.
[6cef439]	2581	if ( $3->kind == TypeData::SymbolicInst && ! $3->symbolic.isTypedef ) {
	2582	$$ = DeclarationNode::newFromTypeData( $3 )->addQualifiers( $2 );
[9fa61f5]	2583	} else {
[6cef439]	2584	$$ = DeclarationNode::newAggregate( $1, $3->symbolic.name, $3->symbolic.actuals, nullptr, false )->addQualifiers( $2 );
	2585	$3->symbolic.name = nullptr; // copied to $$
	2586	$3->symbolic.actuals = nullptr;
[9fa61f5]	2587	delete $3;
	2588	}
[65d6de4]	2589	}
[4d51835]	2590	;
[51b73452]	2591
	2592	aggregate_key:
[e307e12]	2593	aggregate_data
	2594	\| aggregate_control
	2595	;
	2596
	2597	aggregate_data:
[1f652a7]	2598	STRUCT vtable_opt
[bb7422a]	2599	{ $$ = ast::AggregateDecl::Struct; }
[c0aa336]	2600	\| UNION
[bb7422a]	2601	{ $$ = ast::AggregateDecl::Union; }
[e307e12]	2602	\| EXCEPTION // CFA
[bb7422a]	2603	{ $$ = ast::AggregateDecl::Exception; }
[e307e12]	2604	;
	2605
	2606	aggregate_control: // CFA
[cbbd8fd7]	2607	MONITOR
[bb7422a]	2608	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2609	\| MUTEX STRUCT
[bb7422a]	2610	{ $$ = ast::AggregateDecl::Monitor; }
[cbbd8fd7]	2611	\| GENERATOR
[bb7422a]	2612	{ $$ = ast::AggregateDecl::Generator; }
[cbbd8fd7]	2613	\| MUTEX GENERATOR
[bb7422a]	2614	{
	2615	SemanticError( yylloc, "monitor generator is currently unimplemented." );
	2616	$$ = ast::AggregateDecl::NoAggregate;
	2617	}
[d3bc0ad]	2618	\| COROUTINE
[bb7422a]	2619	{ $$ = ast::AggregateDecl::Coroutine; }
[cbbd8fd7]	2620	\| MUTEX COROUTINE
[bb7422a]	2621	{
	2622	SemanticError( yylloc, "monitor coroutine is currently unimplemented." );
	2623	$$ = ast::AggregateDecl::NoAggregate;
	2624	}
[d3bc0ad]	2625	\| THREAD
[bb7422a]	2626	{ $$ = ast::AggregateDecl::Thread; }
[cbbd8fd7]	2627	\| MUTEX THREAD
[bb7422a]	2628	{
	2629	SemanticError( yylloc, "monitor thread is currently unimplemented." );
	2630	$$ = ast::AggregateDecl::NoAggregate;
	2631	}
[4d51835]	2632	;
[51b73452]	2633
[7fdb94e1]	2634	field_declaration_list_opt:
[5d125e4]	2635	// empty
[58dd019]	2636	{ $$ = nullptr; }
[7fdb94e1]	2637	\| field_declaration_list_opt field_declaration
[dc3fbe5]	2638	{ $$ = $1 ? $1->set_last( $2 ) : $2; }
[4d51835]	2639	;
[51b73452]	2640
	2641	field_declaration:
[679e644]	2642	type_specifier field_declaring_list_opt ';'
[d8454b9]	2643	{
	2644	// printf( "type_specifier1 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
	2645	$$ = fieldDecl( $1, $2 );
	2646	// printf( "type_specifier2 %p %s\n", $$, $$->type->aggregate.name ? $$->type->aggregate.name->c_str() : "(nil)" );
[9fd9d015]	2647	// for ( Attribute * attr: reverseIterate( $$->attributes ) ) {
[d8454b9]	2648	// printf( "\tattr %s\n", attr->name.c_str() );
	2649	// } // for
	2650	}
[0442f93f]	2651	\| type_specifier field_declaring_list_opt '}' // invalid syntax rule
[55266c7]	2652	{
[b1f2007d]	2653	SemanticError( yylloc, "syntax error, expecting ';' at end of previous declaration." );
[55266c7]	2654	$$ = nullptr;
	2655	}
[679e644]	2656	\| EXTENSION type_specifier field_declaring_list_opt ';' // GCC
[f7e4db27]	2657	{ $$ = fieldDecl( $2, $3 ); distExt( $$ ); }
[466787a]	2658	\| STATIC type_specifier field_declaring_list_opt ';' // CFA
[9fd9d015]	2659	{ SemanticError( yylloc, "STATIC aggregate field qualifier currently unimplemented." ); $$ = nullptr; }
[e07caa2]	2660	\| INLINE type_specifier field_abstract_list_opt ';' // CFA
[679e644]	2661	{
[dea36ee]	2662	if ( ! $3 ) { // field declarator ?
	2663	$3 = DeclarationNode::newName( nullptr );
	2664	} // if
[679a260]	2665	$3->inLine = true;
[679e644]	2666	$$ = distAttr( $2, $3 ); // mark all fields in list
[e07caa2]	2667	distInl( $3 );
[8f91c9ae]	2668	}
[e307e12]	2669	\| INLINE aggregate_control ';' // CFA
[9fd9d015]	2670	{ SemanticError( yylloc, "INLINE aggregate control currently unimplemented." ); $$ = nullptr; }
[46fa473]	2671	\| typedef_declaration ';' // CFA
	2672	\| cfa_field_declaring_list ';' // CFA, new style field declaration
	2673	\| EXTENSION cfa_field_declaring_list ';' // GCC
	2674	{ distExt( $2 ); $$ = $2; } // mark all fields in list
[679e644]	2675	\| INLINE cfa_field_abstract_list ';' // CFA, new style field declaration
	2676	{ $$ = $2; } // mark all fields in list
[46fa473]	2677	\| cfa_typedef_declaration ';' // CFA
[b47b827]	2678	\| static_assert // C11
[4d51835]	2679	;
[b87a5ed]	2680
[679e644]	2681	field_declaring_list_opt:
	2682	// empty
	2683	{ $$ = nullptr; }
	2684	\| field_declarator
	2685	\| field_declaring_list_opt ',' attribute_list_opt field_declarator
[dc3fbe5]	2686	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[4d51835]	2687	;
[51b73452]	2688
[679e644]	2689	field_declarator:
[e07caa2]	2690	bit_subrange_size // C special case, no field name
[4d51835]	2691	{ $$ = DeclarationNode::newBitfield( $1 ); }
	2692	\| variable_declarator bit_subrange_size_opt
[679e644]	2693	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2694	{ $$ = $1->addBitfield( $2 ); }
[c6b1105]	2695	\| variable_type_redeclarator bit_subrange_size_opt
[679e644]	2696	// A semantic check is required to ensure bit_subrange only appears on integral types.
[4d51835]	2697	{ $$ = $1->addBitfield( $2 ); }
[1f771fc]	2698	\| function_type_redeclarator bit_subrange_size_opt
	2699	// A semantic check is required to ensure bit_subrange only appears on integral types.
	2700	{ $$ = $1->addBitfield( $2 ); }
[679e644]	2701	;
	2702
[e07caa2]	2703	field_abstract_list_opt:
	2704	// empty
[dea36ee]	2705	{ $$ = nullptr; }
[e07caa2]	2706	\| field_abstract
	2707	\| field_abstract_list_opt ',' attribute_list_opt field_abstract
[dc3fbe5]	2708	{ $$ = $1->set_last( $4->addQualifiers( $3 ) ); }
[679e644]	2709	;
	2710
[e07caa2]	2711	field_abstract:
[f7e4db27]	2712	// no bit fields
[e07caa2]	2713	variable_abstract_declarator
[679e644]	2714	;
	2715
	2716	cfa_field_declaring_list: // CFA, new style field declaration
[f7e4db27]	2717	// bit-fields are handled by C declarations
[033ff37]	2718	cfa_abstract_declarator_tuple identifier_or_type_name
[679e644]	2719	{ $$ = $1->addName( $2 ); }
[033ff37]	2720	\| cfa_field_declaring_list ',' identifier_or_type_name
[dc3fbe5]	2721	{ $$ = $1->set_last( $1->cloneType( $3 ) ); }
[679e644]	2722	;
	2723
	2724	cfa_field_abstract_list: // CFA, new style field declaration
[f7e4db27]	2725	// bit-fields are handled by C declarations
[679e644]	2726	cfa_abstract_declarator_tuple
	2727	\| cfa_field_abstract_list ','
[dc3fbe5]	2728	{ $$ = $1->set_last( $1->cloneType( 0 ) ); }
[4d51835]	2729	;
[51b73452]	2730
	2731	bit_subrange_size_opt:
[4d51835]	2732	// empty
[58dd019]	2733	{ $$ = nullptr; }
[4d51835]	2734	\| bit_subrange_size
	2735	;
[51b73452]	2736
	2737	bit_subrange_size:
[c786e1d]	2738	':' assignment_expression
[4d51835]	2739	{ $$ = $2; }
	2740	;
[51b73452]	2741
[7e13b11]	2742	// ************************ ENUMERATION *****************************
[647e2ea]	2743
[9e7236f4]	2744	enum_type:
[30aab55]	2745	// anonymous, no type name
	2746	ENUM attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2747	{
	2748	if ( $3 == EnumHiding::Hide ) {
	2749	SemanticError( yylloc, "syntax error, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
	2750	} // if
	2751	$$ = DeclarationNode::newEnum( nullptr, $5, true, false )->addQualifiers( $2 );
	2752	}
[42422fb]	2753	\| ENUM enumerator_type attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
[30aab55]	2754	{
[42422fb]	2755	if ( $2 && ($2->storageClasses.val != 0 \|\| $2->type->qualifiers.any()) ) {
[55266c7]	2756	SemanticError( yylloc, "syntax error, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
	2757	}
[42422fb]	2758	if ( $4 == EnumHiding::Hide ) {
	2759	SemanticError( yylloc, "syntax error, hiding ('!') the enumerator names of an anonymous enumeration means the names are inaccessible." ); $$ = nullptr;
	2760	} // if
	2761	$$ = DeclarationNode::newEnum( nullptr, $6, true, true, $2 )->addQualifiers( $3 );
[b0d9ff7]	2762	}
[30aab55]	2763
[42422fb]	2764	// named type
[30aab55]	2765	\| ENUM attribute_list_opt identifier
	2766	{ typedefTable.makeTypedef( *$3, "enum_type 1" ); }
	2767	hide_opt '{' enumerator_list comma_opt '}'
	2768	{ $$ = DeclarationNode::newEnum( $3, $7, true, false, nullptr, $5 )->addQualifiers( $2 ); }
	2769	\| ENUM attribute_list_opt typedef_name hide_opt '{' enumerator_list comma_opt '}' // unqualified type name
	2770	{ $$ = DeclarationNode::newEnum( $3->name, $6, true, false, nullptr, $4 )->addQualifiers( $2 ); }
[42422fb]	2771	\| ENUM enumerator_type attribute_list_opt identifier attribute_list_opt
[b0d9ff7]	2772	{
[42422fb]	2773	if ( $2 && ($2->storageClasses.any() \|\| $2->type->qualifiers.val != 0) ) {
[55266c7]	2774	SemanticError( yylloc, "syntax error, storage-class and CV qualifiers are not meaningful for enumeration constants, which are const." );
	2775	}
[42422fb]	2776	typedefTable.makeTypedef( *$4, "enum_type 2" );
[8bea701]	2777	}
[c7f12a4]	2778	hide_opt '{' enumerator_list comma_opt '}'
[42422fb]	2779	{ $$ = DeclarationNode::newEnum( $4, $9, true, true, $2, $7 )->addQualifiers( $3 )->addQualifiers( $5 ); }
	2780	\| ENUM enumerator_type attribute_list_opt typedef_name attribute_list_opt hide_opt '{' enumerator_list comma_opt '}'
	2781	{ $$ = DeclarationNode::newEnum( $4->name, $8, true, true, $2, $6 )->addQualifiers( $3 )->addQualifiers( $5 ); }
[30aab55]	2782
	2783	// forward declaration
[d0ffed1]	2784	\| enum_type_nobody
	2785	;
	2786
[42422fb]	2787	enumerator_type:
	2788	'(' ')' // pure enumeration
	2789	{ $$ = nullptr; }
	2790	\| '(' cfa_abstract_parameter_declaration ')' // typed enumeration
	2791	{ $$ = $2; }
	2792	;
	2793
[c7f12a4]	2794	hide_opt:
	2795	// empty
[7cf8006]	2796	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2797	\| '!'
[7cf8006]	2798	{ $$ = EnumHiding::Hide; }
[c7f12a4]	2799	;
	2800
[d0ffed1]	2801	enum_type_nobody: // enum - {...}
[f9c3100]	2802	ENUM attribute_list_opt identifier
[71a422a]	2803	{
	2804	typedefTable.makeTypedef( *$3, "enum_type_nobody 1" );
	2805	$$ = DeclarationNode::newEnum( $3, nullptr, false, false )->addQualifiers( $2 );
	2806	}
[0bd46fd]	2807	\| ENUM attribute_list_opt type_name
[71a422a]	2808	{
[6cef439]	2809	typedefTable.makeTypedef( *$3->symbolic.name, "enum_type_nobody 2" );
	2810	$$ = DeclarationNode::newEnum( $3->symbolic.name, nullptr, false, false )->addQualifiers( $2 );
[71a422a]	2811	}
[4d51835]	2812	;
[51b73452]	2813
	2814	enumerator_list:
[7cf8006]	2815	visible_hide_opt identifier_or_type_name enumerator_value_opt
[c7f12a4]	2816	{ $$ = DeclarationNode::newEnumValueGeneric( $2, $3 ); }
[f9c3100]	2817	\| INLINE type_name
[d9bad51]	2818	{
	2819	$$ = DeclarationNode::newEnumInLine( $2->symbolic.name );
	2820	$2->symbolic.name = nullptr;
	2821	delete $2;
	2822	}
[7cf8006]	2823	\| enumerator_list ',' visible_hide_opt identifier_or_type_name enumerator_value_opt
[dc3fbe5]	2824	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( $4, $5 ) ); }
[f9c3100]	2825	\| enumerator_list ',' INLINE type_name enumerator_value_opt
[dc3fbe5]	2826	{ $$ = $1->set_last( DeclarationNode::newEnumValueGeneric( new string("inline"), nullptr ) ); }
[4d51835]	2827	;
[51b73452]	2828
[7cf8006]	2829	visible_hide_opt:
[c7f12a4]	2830	hide_opt
	2831	\| '^'
[7cf8006]	2832	{ $$ = EnumHiding::Visible; }
[c7f12a4]	2833	;
	2834
[51b73452]	2835	enumerator_value_opt:
[4d51835]	2836	// empty
[58dd019]	2837	{ $$ = nullptr; }
[7991c7d]	2838	\| '=' constant_expression { $$ = new InitializerNode( $2 ); }
	2839	\| '=' '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $3, true ); }
	2840	// \| simple_assignment_operator initializer
	2841	// { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
[4d51835]	2842	;
[51b73452]	2843
[7e13b11]	2844	// ************************ FUNCTION PARAMETERS *****************************
[647e2ea]	2845
	2846	parameter_list_ellipsis_opt:
	2847	// empty
	2848	{ $$ = nullptr; }
	2849	\| ELLIPSIS
	2850	{ $$ = nullptr; }
	2851	\| parameter_list
	2852	\| parameter_list ',' ELLIPSIS
	2853	{ $$ = $1->addVarArgs(); }
	2854	;
	2855
	2856	parameter_list: // abstract + real
	2857	parameter_declaration
	2858	\| abstract_parameter_declaration
	2859	\| parameter_list ',' parameter_declaration
	2860	{ $$ = $1->set_last( $3 ); }
	2861	\| parameter_list ',' abstract_parameter_declaration
	2862	{ $$ = $1->set_last( $3 ); }
	2863	;
	2864
	2865	cfa_parameter_list_ellipsis_opt: // CFA, abstract + real
[4d51835]	2866	// empty
[e048ece]	2867	{ $$ = DeclarationNode::newFromTypeData( build_basic_type( TypeData::Void ) ); }
[2a8427c6]	2868	\| ELLIPSIS
[58dd019]	2869	{ $$ = nullptr; }
[c0aa336]	2870	\| cfa_parameter_list
[647e2ea]	2871	\| cfa_abstract_parameter_list
	2872	\| cfa_parameter_list ',' cfa_abstract_parameter_list
	2873	{ $$ = $1->set_last( $3 ); }
	2874	\| cfa_parameter_list ',' ELLIPSIS
[4d51835]	2875	{ $$ = $1->addVarArgs(); }
[647e2ea]	2876	\| cfa_abstract_parameter_list ',' ELLIPSIS
[4d51835]	2877	{ $$ = $1->addVarArgs(); }
	2878	;
[b87a5ed]	2879
[c0aa336]	2880	cfa_parameter_list: // CFA
	2881	// To obtain LR(1) between cfa_parameter_list and cfa_abstract_tuple, the last cfa_abstract_parameter_list is
	2882	// factored out from cfa_parameter_list, flattening the rules to get lookahead to the ']'.
	2883	cfa_parameter_declaration
[647e2ea]	2884	\| cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2885	{ $$ = $1->set_last( $3 ); }
	2886	\| cfa_parameter_list ',' cfa_parameter_declaration
	2887	{ $$ = $1->set_last( $3 ); }
	2888	\| cfa_parameter_list ',' cfa_abstract_parameter_list ',' cfa_parameter_declaration
	2889	{ $$ = $1->set_last( $3 )->set_last( $5 ); }
[4d51835]	2890	;
[b87a5ed]	2891
[c0aa336]	2892	cfa_abstract_parameter_list: // CFA, new & old style abstract
	2893	cfa_abstract_parameter_declaration
[647e2ea]	2894	\| cfa_abstract_parameter_list ',' cfa_abstract_parameter_declaration
[dc3fbe5]	2895	{ $$ = $1->set_last( $3 ); }
[4d51835]	2896	;
[51b73452]	2897
[de62360d]	2898	// Provides optional identifier names (abstract_declarator/variable_declarator), no initialization, different semantics
[2871210]	2899	// for typedef name by using type_parameter_redeclarator instead of typedef_redeclarator, and function prototypes.
[51b73452]	2900
[647e2ea]	2901	parameter_declaration:
	2902	// No SUE declaration in parameter list.
	2903	declaration_specifier_nobody identifier_parameter_declarator default_initializer_opt
	2904	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2905	\| declaration_specifier_nobody type_parameter_redeclarator default_initializer_opt
	2906	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2907	;
	2908
	2909	abstract_parameter_declaration:
	2910	declaration_specifier_nobody default_initializer_opt
	2911	{ $$ = $1->addInitializer( $2 ? new InitializerNode( $2 ) : nullptr ); }
	2912	\| declaration_specifier_nobody abstract_parameter_declarator default_initializer_opt
	2913	{ $$ = $2->addType( $1 )->addInitializer( $3 ? new InitializerNode( $3 ) : nullptr ); }
	2914	;
	2915
[c0aa336]	2916	cfa_parameter_declaration: // CFA, new & old style parameter declaration
[4d51835]	2917	parameter_declaration
[5a51798]	2918	\| cfa_identifier_parameter_declarator_no_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2919	{ $$ = $1->addName( $2 ); }
[5a51798]	2920	\| cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[c0aa336]	2921	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
[4d51835]	2922	{ $$ = $1->addName( $2 ); }
[5a51798]	2923	\| type_qualifier_list cfa_abstract_tuple identifier_or_type_name default_initializer_opt
[4d51835]	2924	{ $$ = $2->addName( $3 )->addQualifiers( $1 ); }
[7e13b11]	2925	\| cfa_function_specifier // int f( "int fp()" );
[4d51835]	2926	;
[b87a5ed]	2927
[c0aa336]	2928	cfa_abstract_parameter_declaration: // CFA, new & old style parameter declaration
[0ac8d07]	2929	abstract_parameter_declaration
[c0aa336]	2930	\| cfa_identifier_parameter_declarator_no_tuple
	2931	\| cfa_abstract_tuple
	2932	// To obtain LR(1), these rules must be duplicated here (see cfa_abstract_declarator).
	2933	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	2934	{ $$ = $2->addQualifiers( $1 ); }
[7e13b11]	2935	\| cfa_abstract_function // int f( "int ()" );
[4d51835]	2936	;
[51b73452]	2937
[c11e31c]	2938	// ISO/IEC 9899:1999 Section 6.9.1(6) : "An identifier declared as a typedef name shall not be redeclared as a
[de62360d]	2939	// parameter." Because the scope of the K&R-style parameter-list sees the typedef first, the following is based only on
	2940	// identifiers. The ANSI-style parameter-list can redefine a typedef name.
[51b73452]	2941
[b87a5ed]	2942	identifier_list: // K&R-style parameter list => no types
[033ff37]	2943	identifier
[4d51835]	2944	{ $$ = DeclarationNode::newName( $1 ); }
[033ff37]	2945	\| identifier_list ',' identifier
[dc3fbe5]	2946	{ $$ = $1->set_last( DeclarationNode::newName( $3 ) ); }
[4d51835]	2947	;
[51b73452]	2948
[2871210]	2949	identifier_or_type_name:
[4d51835]	2950	identifier
	2951	\| TYPEDEFname
	2952	\| TYPEGENname
	2953	;
[51b73452]	2954
[84d58c5]	2955	type_no_function: // sizeof, alignof, cast (constructor)
[c0aa336]	2956	cfa_abstract_declarator_tuple // CFA
[9fa61f5]	2957	\| type_specifier // cannot be type_specifier_nobody, e.g., (struct S {}){} is a thing
[c0aa336]	2958	\| type_specifier abstract_declarator
[4d51835]	2959	{ $$ = $2->addType( $1 ); }
	2960	;
[b87a5ed]	2961
[84d58c5]	2962	type: // typeof, assertion
	2963	type_no_function
[c0aa336]	2964	\| cfa_abstract_function // CFA
[4d51835]	2965	;
[51b73452]	2966
	2967	initializer_opt:
[4d51835]	2968	// empty
[58dd019]	2969	{ $$ = nullptr; }
[f9c3100]	2970	\| simple_assignment_operator initializer { $$ = $1 == OperKinds::Assign ? $2 : $2->set_maybeConstructed( false ); }
	2971	\| '=' VOID { $$ = new InitializerNode( true ); }
[63b3279e]	2972	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2973	;
[51b73452]	2974
	2975	initializer:
[de62360d]	2976	assignment_expression { $$ = new InitializerNode( $1 ); }
[7fdb94e1]	2977	\| '{' initializer_list_opt comma_opt '}' { $$ = new InitializerNode( $2, true ); }
[4d51835]	2978	;
[51b73452]	2979
[7fdb94e1]	2980	initializer_list_opt:
[097e2b0]	2981	// empty
[58dd019]	2982	{ $$ = nullptr; }
[097e2b0]	2983	\| initializer
[4d51835]	2984	\| designation initializer { $$ = $2->set_designators( $1 ); }
[b93c544]	2985	\| initializer_list_opt ',' initializer { $$ = $1->set_last( $3 ); }
	2986	\| initializer_list_opt ',' designation initializer { $$ = $1->set_last( $4->set_designators( $3 ) ); }
[4d51835]	2987	;
[b87a5ed]	2988
[de62360d]	2989	// There is an unreconcileable parsing problem between C99 and CFA with respect to designators. The problem is use of
	2990	// '=' to separator the designator from the initializer value, as in:
[c11e31c]	2991	//
[b87a5ed]	2992	// int x[10] = { [1] = 3 };
[c11e31c]	2993	//
[de62360d]	2994	// The string "[1] = 3" can be parsed as a designator assignment or a tuple assignment. To disambiguate this case, CFA
	2995	// changes the syntax from "=" to ":" as the separator between the designator and initializer. GCC does uses ":" for
	2996	// field selection. The optional use of the "=" in GCC, or in this case ":", cannot be supported either due to
	2997	// shift/reduce conflicts
[51b73452]	2998
	2999	designation:
[4d51835]	3000	designator_list ':' // C99, CFA uses ":" instead of "="
[e16eb460]	3001	\| identifier_at ':' // GCC, field name
[bb7422a]	3002	{ $$ = new ExpressionNode( build_varref( yylloc, $1 ) ); }
[4d51835]	3003	;
[51b73452]	3004
[b87a5ed]	3005	designator_list: // C99
[4d51835]	3006	designator
[2871210]	3007	\| designator_list designator
[b93c544]	3008	{ $$ = $1->set_last( $2 ); }
[d1625f8]	3009	//\| designator_list designator { $$ = new ExpressionNode( $1, $2 ); }
[4d51835]	3010	;
[51b73452]	3011
	3012	designator:
[e16eb460]	3013	'.' identifier_at // C99, field name
[bb7422a]	3014	{ $$ = new ExpressionNode( build_varref( yylloc, $2 ) ); }
[c0a33d2]	3015	\| '[' push assignment_expression pop ']' // C99, single array element
[de62360d]	3016	// assignment_expression used instead of constant_expression because of shift/reduce conflicts with tuple.
[d1625f8]	3017	{ $$ = $3; }
[c0a33d2]	3018	\| '[' push subrange pop ']' // CFA, multiple array elements
	3019	{ $$ = $3; }
	3020	\| '[' push constant_expression ELLIPSIS constant_expression pop ']' // GCC, multiple array elements
[bb7422a]	3021	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $3 ), maybeMoveBuild( $5 ) ) ); }
[679e644]	3022	\| '.' '[' push field_name_list pop ']' // CFA, tuple field selector
[c0a33d2]	3023	{ $$ = $4; }
[4d51835]	3024	;
[51b73452]	3025
[de62360d]	3026	// The CFA type system is based on parametric polymorphism, the ability to declare functions with type parameters,
	3027	// rather than an object-oriented type system. This required four groups of extensions:
[c11e31c]	3028	//
	3029	// Overloading: function, data, and operator identifiers may be overloaded.
	3030	//
[3ca7ef3]	3031	// Type declarations: "otype" is used to generate new types for declaring objects. Similarly, "dtype" is used for object
[de62360d]	3032	// and incomplete types, and "ftype" is used for function types. Type declarations with initializers provide
	3033	// definitions of new types. Type declarations with storage class "extern" provide opaque types.
[c11e31c]	3034	//
[de62360d]	3035	// Polymorphic functions: A forall clause declares a type parameter. The corresponding argument is inferred at the call
	3036	// site. A polymorphic function is not a template; it is a function, with an address and a type.
[c11e31c]	3037	//
	3038	// Specifications and Assertions: Specifications are collections of declarations parameterized by one or more
[de62360d]	3039	// types. They serve many of the purposes of abstract classes, and specification hierarchies resemble subclass
	3040	// hierarchies. Unlike classes, they can define relationships between types. Assertions declare that a type or
	3041	// types provide the operations declared by a specification. Assertions are normally used to declare requirements
	3042	// on type arguments of polymorphic functions.
[c11e31c]	3043
[b87a5ed]	3044	type_parameter_list: // CFA
[67cf18c]	3045	type_parameter
	3046	\| type_parameter_list ',' type_parameter
[dc3fbe5]	3047	{ $$ = $1->set_last( $3 ); }
[4d51835]	3048	;
[b87a5ed]	3049
[84d58c5]	3050	type_initializer_opt: // CFA
	3051	// empty
	3052	{ $$ = nullptr; }
	3053	\| '=' type
	3054	{ $$ = $2; }
	3055	;
	3056
[b87a5ed]	3057	type_parameter: // CFA
[033ff37]	3058	type_class identifier_or_type_name
[408ab79]	3059	{
[71a422a]	3060	typedefTable.addToScope( *$2, TYPEDEFname, "type_parameter 1" );
[bb7422a]	3061	if ( $1 == ast::TypeDecl::Otype ) { SemanticError( yylloc, "otype keyword is deprecated, use T " ); }
	3062	if ( $1 == ast::TypeDecl::Dtype ) { SemanticError( yylloc, "dtype keyword is deprecated, use T &" ); }
	3063	if ( $1 == ast::TypeDecl::Ttype ) { SemanticError( yylloc, "ttype keyword is deprecated, use T ..." ); }
[fd54fef]	3064	}
[5a51798]	3065	type_initializer_opt assertion_list_opt
[67cf18c]	3066	{ $$ = DeclarationNode::newTypeParam( $1, $2 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
[5a51798]	3067	\| identifier_or_type_name new_type_class
[71a422a]	3068	{ typedefTable.addToScope( *$1, TYPEDEFname, "type_parameter 2" ); }
[5a51798]	3069	type_initializer_opt assertion_list_opt
	3070	{ $$ = DeclarationNode::newTypeParam( $2, $1 )->addTypeInitializer( $4 )->addAssertions( $5 ); }
	3071	\| '[' identifier_or_type_name ']'
[b66d14a]	3072	{
[71a422a]	3073	typedefTable.addToScope( *$2, TYPEDIMname, "type_parameter 3" );
[bb7422a]	3074	$$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dimension, $2 );
[b66d14a]	3075	}
[5a51798]	3076	// \| type_specifier identifier_parameter_declarator
[9997fee]	3077	\| assertion_list
[bb7422a]	3078	{ $$ = DeclarationNode::newTypeParam( ast::TypeDecl::Dtype, new string( DeclarationNode::anonymous.newName() ) )->addAssertions( $1 ); }
[0522ebe]	3079	\| ENUM '(' identifier_or_type_name ')' identifier_or_type_name new_type_class type_initializer_opt assertion_list_opt
	3080	{
	3081	typedefTable.addToScope( *$3, TYPEDIMname, "type_parameter 4" );
	3082	typedefTable.addToScope( *$5, TYPEDIMname, "type_parameter 5" );
	3083	$$ = DeclarationNode::newTypeParam( $6, $5 )->addTypeInitializer( $7 )->addAssertions( $8 );
	3084	}
[4d51835]	3085	;
[b87a5ed]	3086
[5a51798]	3087	new_type_class: // CFA
	3088	// empty
[bb7422a]	3089	{ $$ = ast::TypeDecl::Otype; }
[5a51798]	3090	\| '&'
[bb7422a]	3091	{ $$ = ast::TypeDecl::Dtype; }
[5a51798]	3092	\| '*'
[7e13b11]	3093	{ $$ = ast::TypeDecl::DStype; } // Dtype + sized
	3094	// \| '(' '*' ')' // Gregor made me do it
	3095	// { $$ = ast::TypeDecl::Ftype; }
[5a51798]	3096	\| ELLIPSIS
[bb7422a]	3097	{ $$ = ast::TypeDecl::Ttype; }
[5a51798]	3098	;
	3099
[b87a5ed]	3100	type_class: // CFA
[4040425]	3101	OTYPE
[bb7422a]	3102	{ $$ = ast::TypeDecl::Otype; }
[4d51835]	3103	\| DTYPE
[bb7422a]	3104	{ $$ = ast::TypeDecl::Dtype; }
[8f60f0b]	3105	\| FTYPE
[bb7422a]	3106	{ $$ = ast::TypeDecl::Ftype; }
[8f60f0b]	3107	\| TTYPE
[bb7422a]	3108	{ $$ = ast::TypeDecl::Ttype; }
[4d51835]	3109	;
[b87a5ed]	3110
	3111	assertion_list_opt: // CFA
[4d51835]	3112	// empty
[58dd019]	3113	{ $$ = nullptr; }
[9997fee]	3114	\| assertion_list
	3115	;
	3116
	3117	assertion_list: // CFA
	3118	assertion
	3119	\| assertion_list assertion
[dc3fbe5]	3120	{ $$ = $1->set_last( $2 ); }
[4d51835]	3121	;
[b87a5ed]	3122
	3123	assertion: // CFA
[033ff37]	3124	'\|' identifier_or_type_name '(' type_list ')'
[7fdb94e1]	3125	{ $$ = DeclarationNode::newTraitUse( $2, $4 ); }
[13e8427]	3126	\| '\|' '{' push trait_declaration_list pop '}'
[4d51835]	3127	{ $$ = $4; }
[35718a9]	3128	// \| '\|' '(' push type_parameter_list pop ')' '{' push trait_declaration_list pop '}' '(' type_list ')'
	3129	// { SemanticError( yylloc, "Generic data-type assertion is currently unimplemented." ); $$ = nullptr; }
[4d51835]	3130	;
[b87a5ed]	3131
[84d58c5]	3132	type_list: // CFA
	3133	type
[bb7422a]	3134	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[4d51835]	3135	\| assignment_expression
[84d58c5]	3136	\| type_list ',' type
[b93c544]	3137	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[84d58c5]	3138	\| type_list ',' assignment_expression
[b93c544]	3139	{ $$ = $1->set_last( $3 ); }
[4d51835]	3140	;
[b87a5ed]	3141
	3142	type_declaring_list: // CFA
[4040425]	3143	OTYPE type_declarator
[4d51835]	3144	{ $$ = $2; }
[4040425]	3145	\| storage_class_list OTYPE type_declarator
[4d51835]	3146	{ $$ = $3->addQualifiers( $1 ); }
	3147	\| type_declaring_list ',' type_declarator
[dc3fbe5]	3148	{ $$ = $1->set_last( $3->copySpecifiers( $1 ) ); }
[4d51835]	3149	;
[b87a5ed]	3150
	3151	type_declarator: // CFA
[4d51835]	3152	type_declarator_name assertion_list_opt
	3153	{ $$ = $1->addAssertions( $2 ); }
[84d58c5]	3154	\| type_declarator_name assertion_list_opt '=' type
[4d51835]	3155	{ $$ = $1->addAssertions( $2 )->addType( $4 ); }
	3156	;
[b87a5ed]	3157
	3158	type_declarator_name: // CFA
[033ff37]	3159	identifier_or_type_name
[4d51835]	3160	{
[71a422a]	3161	typedefTable.addToEnclosingScope( *$1, TYPEDEFname, "type_declarator_name 1" );
[a5f9444]	3162	$$ = DeclarationNode::newTypeDecl( $1, nullptr );
[4d51835]	3163	}
[033ff37]	3164	\| identifier_or_type_name '(' type_parameter_list ')'
[4d51835]	3165	{
[71a422a]	3166	typedefTable.addToEnclosingScope( *$1, TYPEGENname, "type_declarator_name 2" );
[35718a9]	3167	$$ = DeclarationNode::newTypeDecl( $1, $3 );
[4d51835]	3168	}
	3169	;
[b87a5ed]	3170
[4040425]	3171	trait_specifier: // CFA
[033ff37]	3172	TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' '}'
[8a97248]	3173	{
[3d937e2]	3174	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3175	$$ = DeclarationNode::newTrait( $2, $4, nullptr );
	3176	}
	3177	\| forall TRAIT identifier_or_type_name '{' '}' // alternate
[7a24d76]	3178	{ $$ = DeclarationNode::newTrait( $3, $1, nullptr ); }
[033ff37]	3179	\| TRAIT identifier_or_type_name '(' type_parameter_list ')' '{' push trait_declaration_list pop '}'
[8a97248]	3180	{
[3d937e2]	3181	SemanticWarning( yylloc, Warning::DeprecTraitSyntax );
[8a97248]	3182	$$ = DeclarationNode::newTrait( $2, $4, $8 );
	3183	}
[7a24d76]	3184	\| forall TRAIT identifier_or_type_name '{' push trait_declaration_list pop '}' // alternate
	3185	{ $$ = DeclarationNode::newTrait( $3, $1, $6 ); }
[4d51835]	3186	;
[b87a5ed]	3187
[84d58c5]	3188	trait_declaration_list: // CFA
[4040425]	3189	trait_declaration
[13e8427]	3190	\| trait_declaration_list pop push trait_declaration
[dc3fbe5]	3191	{ $$ = $1->set_last( $4 ); }
[4d51835]	3192	;
[b87a5ed]	3193
[84d58c5]	3194	trait_declaration: // CFA
[13e8427]	3195	cfa_trait_declaring_list ';'
	3196	\| trait_declaring_list ';'
[4d51835]	3197	;
[b87a5ed]	3198
[c0aa336]	3199	cfa_trait_declaring_list: // CFA
	3200	cfa_variable_specifier
	3201	\| cfa_function_specifier
	3202	\| cfa_trait_declaring_list pop ',' push identifier_or_type_name
[dc3fbe5]	3203	{ $$ = $1->set_last( $1->cloneType( $5 ) ); }
[4d51835]	3204	;
[b87a5ed]	3205
[4040425]	3206	trait_declaring_list: // CFA
[4d51835]	3207	type_specifier declarator
[7fdb94e1]	3208	{ $$ = $2->addType( $1 ); }
[4040425]	3209	\| trait_declaring_list pop ',' push declarator
[dc3fbe5]	3210	{ $$ = $1->set_last( $1->cloneBaseType( $5 ) ); }
[4d51835]	3211	;
[51b73452]	3212
[e1d66c84]	3213	// ************************** EXTERNAL DEFINITIONS ***************************
[51b73452]	3214
	3215	translation_unit:
[3d56d15b]	3216	// empty, input file
[4d51835]	3217	\| external_definition_list
[dc3fbe5]	3218	{ parseTree = parseTree ? parseTree->set_last( $1 ) : $1; }
[4d51835]	3219	;
[51b73452]	3220
	3221	external_definition_list:
[35718a9]	3222	push external_definition pop
	3223	{ $$ = $2; }
[fc20514]	3224	\| external_definition_list push external_definition pop
[dc3fbe5]	3225	{ $$ = $1 ? $1->set_last( $3 ) : $3; }
[4d51835]	3226	;
[51b73452]	3227
	3228	external_definition_list_opt:
[4d51835]	3229	// empty
[58dd019]	3230	{ $$ = nullptr; }
[3d56d15b]	3231	\| external_definition_list
	3232	;
	3233
	3234	up:
[fc20514]	3235	{ typedefTable.up( forall ); forall = false; }
[3d56d15b]	3236	;
	3237
	3238	down:
	3239	{ typedefTable.down(); }
[4d51835]	3240	;
[51b73452]	3241
	3242	external_definition:
[2d019af]	3243	DIRECTIVE
[bb7422a]	3244	{ $$ = DeclarationNode::newDirectiveStmt( new StatementNode( build_directive( yylloc, $1 ) ) ); }
[2d019af]	3245	\| declaration
[1a73dbb]	3246	{
	3247	// Variable declarations of anonymous types requires creating a unique type-name across multiple translation
	3248	// unit, which is a dubious task, especially because C uses name rather than structural typing; hence it is
	3249	// disallowed at the moment.
[4eb3a7c5]	3250	if ( $1->linkage == ast::Linkage::Cforall && ! $1->storageClasses.is_static &&
	3251	$1->type && $1->type->kind == TypeData::AggregateInst ) {
[67467a3]	3252	if ( $1->type->aggInst.aggregate->aggregate.anon ) {
	3253	SemanticError( yylloc, "extern anonymous aggregate is currently unimplemented." ); $$ = nullptr;
[1a73dbb]	3254	}
	3255	}
	3256	}
[996c8ed]	3257	\| IDENTIFIER IDENTIFIER
	3258	{ IdentifierBeforeIdentifier( $1.str, $2.str, " declaration" ); $$ = nullptr; }
[65ef0cd]	3259	\| IDENTIFIER type_qualifier // invalid syntax rule
[996c8ed]	3260	{ IdentifierBeforeType( *$1.str, "type qualifier" ); $$ = nullptr; }
[65ef0cd]	3261	\| IDENTIFIER storage_class // invalid syntax rule
[996c8ed]	3262	{ IdentifierBeforeType( *$1.str, "storage class" ); $$ = nullptr; }
[65ef0cd]	3263	\| IDENTIFIER basic_type_name // invalid syntax rule
[996c8ed]	3264	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3265	\| IDENTIFIER TYPEDEFname // invalid syntax rule
[996c8ed]	3266	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[65ef0cd]	3267	\| IDENTIFIER TYPEGENname // invalid syntax rule
[996c8ed]	3268	{ IdentifierBeforeType( *$1.str, "type" ); $$ = nullptr; }
[4d51835]	3269	\| external_function_definition
[ecae5860]	3270	\| EXTENSION external_definition // GCC, multiple __extension__ allowed, meaning unknown
	3271	{
	3272	distExt( $2 ); // mark all fields in list
	3273	$$ = $2;
	3274	}
[e994912]	3275	\| ASM '(' string_literal ')' ';' // GCC, global assembler statement
[bb7422a]	3276	{ $$ = DeclarationNode::newAsmStmt( new StatementNode( build_asm( yylloc, false, $3, nullptr ) ) ); }
[aac37fa]	3277	\| EXTERN STRINGliteral
	3278	{
	3279	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3280	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[aac37fa]	3281	}
[ae2f2ae]	3282	up external_definition down
[aac37fa]	3283	{
	3284	linkage = linkageStack.top();
	3285	linkageStack.pop();
	3286	$$ = $5;
	3287	}
[c0aa336]	3288	\| EXTERN STRINGliteral // C++-style linkage specifier
[4d51835]	3289	{
[3b8e52c]	3290	linkageStack.push( linkage ); // handle nested extern "C"/"Cforall"
[bb7422a]	3291	linkage = ast::Linkage::update( yylloc, linkage, $2 );
[4d51835]	3292	}
[3d56d15b]	3293	'{' up external_definition_list_opt down '}'
[4d51835]	3294	{
	3295	linkage = linkageStack.top();
	3296	linkageStack.pop();
[3d56d15b]	3297	$$ = $6;
[8e9cbb2]	3298	}
[7e13b11]	3299	// global distribution
[9997fee]	3300	\| type_qualifier_list
	3301	{
[55266c7]	3302	if ( $1->type->qualifiers.any() ) {
	3303	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3304	}
[fc20514]	3305	if ( $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3306	}
	3307	'{' up external_definition_list_opt down '}' // CFA, namespace
	3308	{
[4c3ee8d]	3309	distQual( $5, $1 );
[9fd9d015]	3310	forall = false;
[3d56d15b]	3311	$$ = $5;
[9997fee]	3312	}
	3313	\| declaration_qualifier_list
	3314	{
[55266c7]	3315	if ( $1->type && $1->type->qualifiers.any() ) {
	3316	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3317	}
[fc20514]	3318	if ( $1->type && $1->type->forall ) forall = true; // remember generic type
[3d56d15b]	3319	}
	3320	'{' up external_definition_list_opt down '}' // CFA, namespace
	3321	{
[4c3ee8d]	3322	distQual( $5, $1 );
[9fd9d015]	3323	forall = false;
[3d56d15b]	3324	$$ = $5;
[9997fee]	3325	}
	3326	\| declaration_qualifier_list type_qualifier_list
	3327	{
[55266c7]	3328	if ( ($1->type && $1->type->qualifiers.any()) \|\| ($2->type && $2->type->qualifiers.any()) ) {
	3329	SemanticError( yylloc, "syntax error, CV qualifiers cannot be distributed; only storage-class and forall qualifiers." );
	3330	}
[b2ddaf3]	3331	if ( ($1->type && $1->type->forall) \|\| ($2->type && $2->type->forall) ) forall = true; // remember generic type
[9997fee]	3332	}
[3d56d15b]	3333	'{' up external_definition_list_opt down '}' // CFA, namespace
[9997fee]	3334	{
[284da8c]	3335	distQual( $6, $1->addQualifiers( $2 ) );
[9fd9d015]	3336	forall = false;
[3d56d15b]	3337	$$ = $6;
[9997fee]	3338	}
[4d51835]	3339	;
	3340
	3341	external_function_definition:
	3342	function_definition
[de62360d]	3343	// These rules are a concession to the "implicit int" type_specifier because there is a significant amount of
[c6b1105]	3344	// legacy code with global functions missing the type-specifier for the return type, and assuming "int".
	3345	// Parsing is possible because function_definition does not appear in the context of an expression (nested
	3346	// functions preclude this concession, i.e., all nested function must have a return type). A function prototype
	3347	// declaration must still have a type_specifier. OBSOLESCENT (see 1)
[4d51835]	3348	\| function_declarator compound_statement
[c0a33d2]	3349	{ $$ = $1->addFunctionBody( $2 ); }
[35718a9]	3350	\| KR_function_declarator KR_parameter_list_opt compound_statement
[c0a33d2]	3351	{ $$ = $1->addOldDeclList( $2 )->addFunctionBody( $3 ); }
[4d51835]	3352	;
[51b73452]	3353
[8b47e50]	3354	with_clause_opt:
	3355	// empty
[9997fee]	3356	{ $$ = nullptr; forall = false; }
[d8454b9]	3357	\| WITH '(' tuple_expression_list ')' attribute_list_opt
	3358	{
	3359	$$ = $3; forall = false;
	3360	if ( $5 ) {
[55266c7]	3361	SemanticError( yylloc, "syntax error, attributes cannot be associated with function body. Move attribute(s) before \"with\" clause." );
[d8454b9]	3362	$$ = nullptr;
	3363	} // if
	3364	}
[8b47e50]	3365	;
	3366
[51b73452]	3367	function_definition:
[8b47e50]	3368	cfa_function_declaration with_clause_opt compound_statement // CFA
[4d51835]	3369	{
[481115f]	3370	// Add the function body to the last identifier in the function definition list, i.e., foo3:
	3371	// [const double] foo1(), foo2( int ), foo3( double ) { return 3.0; }
[5fcba14]	3372	$1->get_last()->addFunctionBody( $3, $2 );
[481115f]	3373	$$ = $1;
[4d51835]	3374	}
[8b47e50]	3375	\| declaration_specifier function_declarator with_clause_opt compound_statement
[4d51835]	3376	{
[c38ae92]	3377	rebindForall( $1, $2 );
[7fdb94e1]	3378	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
	3379	}
[1f771fc]	3380	\| declaration_specifier function_type_redeclarator with_clause_opt compound_statement
[7fdb94e1]	3381	{
	3382	rebindForall( $1, $2 );
[5fcba14]	3383	$$ = $2->addFunctionBody( $4, $3 )->addType( $1 );
[4d51835]	3384	}
[a16a7ec]	3385	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3386	\| type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3387	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3388	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3389	\| declaration_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3390	{ $$ = $2->addFunctionBody( $4, $3 )->addQualifiers( $1 ); }
[a16a7ec]	3391	// handles default int return type, OBSOLESCENT (see 1)
[8b47e50]	3392	\| declaration_qualifier_list type_qualifier_list function_declarator with_clause_opt compound_statement
[c0a33d2]	3393	{ $$ = $3->addFunctionBody( $5, $4 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3394
	3395	// Old-style K&R function definition, OBSOLESCENT (see 4)
[35718a9]	3396	\| declaration_specifier KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[4d51835]	3397	{
[c38ae92]	3398	rebindForall( $1, $2 );
[5fcba14]	3399	$$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addType( $1 );
[4d51835]	3400	}
[a16a7ec]	3401	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3402	\| type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3403	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3404	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3405	\| declaration_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3406	{ $$ = $2->addOldDeclList( $3 )->addFunctionBody( $5, $4 )->addQualifiers( $1 ); }
[a16a7ec]	3407	// handles default int return type, OBSOLESCENT (see 1)
[35718a9]	3408	\| declaration_qualifier_list type_qualifier_list KR_function_declarator KR_parameter_list_opt with_clause_opt compound_statement
[c0a33d2]	3409	{ $$ = $3->addOldDeclList( $4 )->addFunctionBody( $6, $5 )->addQualifiers( $2 )->addQualifiers( $1 ); }
[4d51835]	3410	;
[51b73452]	3411
	3412	declarator:
[4d51835]	3413	variable_declarator
[c6b1105]	3414	\| variable_type_redeclarator
[4d51835]	3415	\| function_declarator
[1f771fc]	3416	\| function_type_redeclarator
[4d51835]	3417	;
[51b73452]	3418
	3419	subrange:
[4d51835]	3420	constant_expression '~' constant_expression // CFA, integer subrange
[bb7422a]	3421	{ $$ = new ExpressionNode( new ast::RangeExpr( yylloc, maybeMoveBuild( $1 ), maybeMoveBuild( $3 ) ) ); }
[4d51835]	3422	;
[b87a5ed]	3423
[7e13b11]	3424	// ************************** ASM ***************************
	3425
[b87a5ed]	3426	asm_name_opt: // GCC
[4d51835]	3427	// empty
[58dd019]	3428	{ $$ = nullptr; }
	3429	\| ASM '(' string_literal ')' attribute_list_opt
[c0aa336]	3430	{
	3431	DeclarationNode * name = new DeclarationNode();
[32d6fdc]	3432	name->asmName = maybeMoveBuild( $3 );
[c0aa336]	3433	$$ = name->addQualifiers( $5 );
	3434	}
[4d51835]	3435	;
[b87a5ed]	3436
[7e13b11]	3437	// ************************** ATTRIBUTE ***************************
	3438
[b87a5ed]	3439	attribute_list_opt: // GCC
[4d51835]	3440	// empty
[58dd019]	3441	{ $$ = nullptr; }
[4d51835]	3442	\| attribute_list
	3443	;
[b87a5ed]	3444
	3445	attribute_list: // GCC
[4d51835]	3446	attribute
	3447	\| attribute_list attribute
[1db21619]	3448	{ $$ = $2->addQualifiers( $1 ); }
[4d51835]	3449	;
[b87a5ed]	3450
	3451	attribute: // GCC
[44a81853]	3452	ATTRIBUTE '(' '(' attribute_name_list ')' ')'
	3453	{ $$ = $4; }
[647e2ea]	3454	\| ATTRIBUTE '(' attribute_name_list ')' // CFA
	3455	{ $$ = $3; }
	3456	\| ATTR '(' attribute_name_list ')' // CFA
	3457	{ $$ = $3; }
[4d51835]	3458	;
[b87a5ed]	3459
[44a81853]	3460	attribute_name_list: // GCC
	3461	attribute_name
	3462	\| attribute_name_list ',' attribute_name
[c0aa336]	3463	{ $$ = $3->addQualifiers( $1 ); }
[4d51835]	3464	;
[b87a5ed]	3465
[44a81853]	3466	attribute_name: // GCC
[4d51835]	3467	// empty
[44a81853]	3468	{ $$ = nullptr; }
	3469	\| attr_name
	3470	{ $$ = DeclarationNode::newAttribute( $1 ); }
[cbbd8fd7]	3471	\| attr_name '(' argument_expression_list_opt ')'
[44a81853]	3472	{ $$ = DeclarationNode::newAttribute( $1, $3 ); }
[4d51835]	3473	;
[b87a5ed]	3474
[44a81853]	3475	attr_name: // GCC
	3476	IDENTIFIER
[5b2edbc]	3477	\| quasi_keyword
[44a81853]	3478	\| TYPEDEFname
	3479	\| TYPEGENname
[114014c]	3480	\| FALLTHROUGH
	3481	{ $$ = Token{ new string( "fallthrough" ), { nullptr, -1 } }; }
[44a81853]	3482	\| CONST
[9ff56e7]	3483	{ $$ = Token{ new string( "__const__" ), { nullptr, -1 } }; }
[4d51835]	3484	;
[51b73452]	3485
[c11e31c]	3486	// ============================================================================
[de62360d]	3487	// The following sections are a series of grammar patterns used to parse declarators. Multiple patterns are necessary
	3488	// because the type of an identifier in wrapped around the identifier in the same form as its usage in an expression, as
	3489	// in:
[c11e31c]	3490	//
[b87a5ed]	3491	// int (*f())[10] { ... };
	3492	// ... (*f())[3] += 1; // definition mimics usage
[c11e31c]	3493	//
[de62360d]	3494	// Because these patterns are highly recursive, changes at a lower level in the recursion require copying some or all of
	3495	// the pattern. Each of these patterns has some subtle variation to ensure correct syntax in a particular context.
[c11e31c]	3496	// ============================================================================
	3497
	3498	// ----------------------------------------------------------------------------
[de62360d]	3499	// The set of valid declarators before a compound statement for defining a function is less than the set of declarators
	3500	// to define a variable or function prototype, e.g.:
[c11e31c]	3501	//
[b87a5ed]	3502	// valid declaration invalid definition
	3503	// ----------------- ------------------
[4d51835]	3504	// int f; int f {}
	3505	// int f; int f {}
[b87a5ed]	3506	// int f[10]; int f[10] {}
[4d51835]	3507	// int (f)(int); int (f)(int) {}
[c11e31c]	3508	//
[de62360d]	3509	// To preclude this syntactic anomaly requires separating the grammar rules for variable and function declarators, hence
	3510	// variable_declarator and function_declarator.
[c11e31c]	3511	// ----------------------------------------------------------------------------
	3512
[de62360d]	3513	// This pattern parses a declaration of a variable that is not redefining a typedef name. The pattern precludes
	3514	// declaring an array of functions versus a pointer to an array of functions.
[51b73452]	3515
[5e25953]	3516	paren_identifier:
[e16eb460]	3517	identifier_at
[5e25953]	3518	{ $$ = DeclarationNode::newName( $1 ); }
	3519	\| '(' paren_identifier ')' // redundant parenthesis
	3520	{ $$ = $2; }
	3521	;
	3522
[51b73452]	3523	variable_declarator:
[4d51835]	3524	paren_identifier attribute_list_opt
[1db21619]	3525	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3526	\| variable_ptr
	3527	\| variable_array attribute_list_opt
[1db21619]	3528	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3529	\| variable_function attribute_list_opt
[1db21619]	3530	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3531	;
[51b73452]	3532
	3533	variable_ptr:
[dd51906]	3534	ptrref_operator variable_declarator
[a5f9444]	3535	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3536	\| ptrref_operator type_qualifier_list variable_declarator
[ce8c12f]	3537	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3538	\| '(' variable_ptr ')' attribute_list_opt // redundant parenthesis
	3539	{ $$ = $2->addQualifiers( $4 ); }
	3540	\| '(' attribute_list variable_ptr ')' attribute_list_opt // redundant parenthesis
	3541	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3542	;
[51b73452]	3543
	3544	variable_array:
[4d51835]	3545	paren_identifier array_dimension
	3546	{ $$ = $1->addArray( $2 ); }
	3547	\| '(' variable_ptr ')' array_dimension
	3548	{ $$ = $2->addArray( $4 ); }
[5e25953]	3549	\| '(' attribute_list variable_ptr ')' array_dimension
	3550	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[9fd9d015]	3551	\| '(' variable_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3552	{ $$ = $2->addArray( $4 ); }
[5e25953]	3553	\| '(' attribute_list variable_array ')' multi_array_dimension // redundant parenthesis
	3554	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3555	\| '(' variable_array ')' // redundant parenthesis
	3556	{ $$ = $2; }
[5e25953]	3557	\| '(' attribute_list variable_array ')' // redundant parenthesis
	3558	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3559	;
[51b73452]	3560
	3561	variable_function:
[647e2ea]	3562	'(' variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3563	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3564	\| '(' attribute_list variable_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3565	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3566	\| '(' variable_function ')' // redundant parenthesis
	3567	{ $$ = $2; }
[5e25953]	3568	\| '(' attribute_list variable_function ')' // redundant parenthesis
	3569	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3570	;
[51b73452]	3571
[c6b1105]	3572	// This pattern parses a function declarator that is not redefining a typedef name. For non-nested functions, there is
	3573	// no context where a function definition can redefine a typedef name, i.e., the typedef and function name cannot exist
	3574	// is the same scope. The pattern precludes returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3575
	3576	function_declarator:
[4d51835]	3577	function_no_ptr attribute_list_opt
[1db21619]	3578	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3579	\| function_ptr
	3580	\| function_array attribute_list_opt
[1db21619]	3581	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3582	;
[51b73452]	3583
	3584	function_no_ptr:
[647e2ea]	3585	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3586	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3587	\| '(' function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3588	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3589	\| '(' attribute_list function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3590	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[4d51835]	3591	\| '(' function_no_ptr ')' // redundant parenthesis
	3592	{ $$ = $2; }
[5e25953]	3593	\| '(' attribute_list function_no_ptr ')' // redundant parenthesis
	3594	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3595	;
[51b73452]	3596
	3597	function_ptr:
[dd51906]	3598	ptrref_operator function_declarator
[a5f9444]	3599	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3600	\| ptrref_operator type_qualifier_list function_declarator
[ce8c12f]	3601	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3602	\| '(' function_ptr ')' attribute_list_opt
	3603	{ $$ = $2->addQualifiers( $4 ); }
	3604	\| '(' attribute_list function_ptr ')' attribute_list_opt
	3605	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3606	;
[51b73452]	3607
	3608	function_array:
[4d51835]	3609	'(' function_ptr ')' array_dimension
	3610	{ $$ = $2->addArray( $4 ); }
[5e25953]	3611	\| '(' attribute_list function_ptr ')' array_dimension
	3612	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3613	\| '(' function_array ')' multi_array_dimension // redundant parenthesis
	3614	{ $$ = $2->addArray( $4 ); }
[5e25953]	3615	\| '(' attribute_list function_array ')' multi_array_dimension // redundant parenthesis
	3616	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[4d51835]	3617	\| '(' function_array ')' // redundant parenthesis
	3618	{ $$ = $2; }
[5e25953]	3619	\| '(' attribute_list function_array ')' // redundant parenthesis
	3620	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3621	;
[51b73452]	3622
[c0aa336]	3623	// This pattern parses an old-style K&R function declarator (OBSOLESCENT, see 4)
	3624	//
	3625	// f( a, b, c ) int a, *b, c[]; {}
	3626	//
	3627	// that is not redefining a typedef name (see function_declarator for additional comments). The pattern precludes
	3628	// returning arrays and functions versus pointers to arrays and functions.
[51b73452]	3629
[c0aa336]	3630	KR_function_declarator:
	3631	KR_function_no_ptr
	3632	\| KR_function_ptr
	3633	\| KR_function_array
[4d51835]	3634	;
[51b73452]	3635
[c0aa336]	3636	KR_function_no_ptr:
[4d51835]	3637	paren_identifier '(' identifier_list ')' // function_declarator handles empty parameter
	3638	{ $$ = $1->addIdList( $3 ); }
[647e2ea]	3639	\| '(' KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3640	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3641	\| '(' attribute_list KR_function_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3642	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[c0aa336]	3643	\| '(' KR_function_no_ptr ')' // redundant parenthesis
[4d51835]	3644	{ $$ = $2; }
[5e25953]	3645	\| '(' attribute_list KR_function_no_ptr ')' // redundant parenthesis
	3646	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3647	;
[51b73452]	3648
[c0aa336]	3649	KR_function_ptr:
	3650	ptrref_operator KR_function_declarator
[a5f9444]	3651	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	3652	\| ptrref_operator type_qualifier_list KR_function_declarator
[ce8c12f]	3653	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3654	\| '(' KR_function_ptr ')'
[4d51835]	3655	{ $$ = $2; }
[5e25953]	3656	\| '(' attribute_list KR_function_ptr ')'
	3657	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3658	;
[51b73452]	3659
[c0aa336]	3660	KR_function_array:
	3661	'(' KR_function_ptr ')' array_dimension
[4d51835]	3662	{ $$ = $2->addArray( $4 ); }
[5e25953]	3663	\| '(' attribute_list KR_function_ptr ')' array_dimension
	3664	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3665	\| '(' KR_function_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3666	{ $$ = $2->addArray( $4 ); }
[5e25953]	3667	\| '(' attribute_list KR_function_array ')' multi_array_dimension // redundant parenthesis
	3668	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[c0aa336]	3669	\| '(' KR_function_array ')' // redundant parenthesis
[4d51835]	3670	{ $$ = $2; }
[5e25953]	3671	\| '(' attribute_list KR_function_array ')' // redundant parenthesis
	3672	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3673	;
[51b73452]	3674
[1f771fc]	3675	// This pattern parses a declaration for a variable that redefines a type name, e.g.:
[c11e31c]	3676	//
[b87a5ed]	3677	// typedef int foo;
	3678	// {
	3679	// int foo; // redefine typedef name in new scope
	3680	// }
[51b73452]	3681
[2871210]	3682	paren_type:
[f9c3100]	3683	typedef_name
[c4f68dc]	3684	{
[f9c3100]	3685	// hide type name in enclosing scope by variable name
[71a422a]	3686	typedefTable.addToEnclosingScope( *$1->name, IDENTIFIER, "paren_type" );
[c4f68dc]	3687	}
[2871210]	3688	\| '(' paren_type ')'
[4d51835]	3689	{ $$ = $2; }
	3690	;
[51b73452]	3691
[5e25953]	3692	variable_type_redeclarator:
	3693	paren_type attribute_list_opt
	3694	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3695	\| variable_type_ptr
	3696	\| variable_type_array attribute_list_opt
[5e25953]	3697	{ $$ = $1->addQualifiers( $2 ); }
[1f771fc]	3698	\| variable_type_function attribute_list_opt
[5e25953]	3699	{ $$ = $1->addQualifiers( $2 ); }
	3700	;
	3701
[1f771fc]	3702	variable_type_ptr:
[c6b1105]	3703	ptrref_operator variable_type_redeclarator
[a5f9444]	3704	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c6b1105]	3705	\| ptrref_operator type_qualifier_list variable_type_redeclarator
[ce8c12f]	3706	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[1f771fc]	3707	\| '(' variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3708	{ $$ = $2->addQualifiers( $4 ); }
[1f771fc]	3709	\| '(' attribute_list variable_type_ptr ')' attribute_list_opt // redundant parenthesis
[5e25953]	3710	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
[4d51835]	3711	;
[51b73452]	3712
[1f771fc]	3713	variable_type_array:
[2871210]	3714	paren_type array_dimension
[4d51835]	3715	{ $$ = $1->addArray( $2 ); }
[1f771fc]	3716	\| '(' variable_type_ptr ')' array_dimension
[4d51835]	3717	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3718	\| '(' attribute_list variable_type_ptr ')' array_dimension
[5e25953]	3719	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3720	\| '(' variable_type_array ')' multi_array_dimension // redundant parenthesis
[4d51835]	3721	{ $$ = $2->addArray( $4 ); }
[1f771fc]	3722	\| '(' attribute_list variable_type_array ')' multi_array_dimension // redundant parenthesis
[5e25953]	3723	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
[1f771fc]	3724	\| '(' variable_type_array ')' // redundant parenthesis
[4d51835]	3725	{ $$ = $2; }
[1f771fc]	3726	\| '(' attribute_list variable_type_array ')' // redundant parenthesis
[5e25953]	3727	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3728	;
[51b73452]	3729
[1f771fc]	3730	variable_type_function:
[647e2ea]	3731	'(' variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3732	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3733	\| '(' attribute_list variable_type_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3734	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3735	\| '(' variable_type_function ')' // redundant parenthesis
	3736	{ $$ = $2; }
	3737	\| '(' attribute_list variable_type_function ')' // redundant parenthesis
	3738	{ $$ = $3->addQualifiers( $2 ); }
	3739	;
	3740
	3741	// This pattern parses a declaration for a function prototype that redefines a type name. It precludes declaring an
	3742	// array of functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to
	3743	// arrays and functions.
	3744
	3745	function_type_redeclarator:
	3746	function_type_no_ptr attribute_list_opt
	3747	{ $$ = $1->addQualifiers( $2 ); }
	3748	\| function_type_ptr
	3749	\| function_type_array attribute_list_opt
	3750	{ $$ = $1->addQualifiers( $2 ); }
	3751	;
	3752
	3753	function_type_no_ptr:
[647e2ea]	3754	paren_type '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3755	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3756	\| '(' function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3757	{ $$ = $2->addParamList( $5 ); }
[647e2ea]	3758	\| '(' attribute_list function_type_ptr ')' '(' parameter_list_ellipsis_opt ')'
[71a422a]	3759	{ $$ = $3->addQualifiers( $2 )->addParamList( $6 ); }
[1f771fc]	3760	\| '(' function_type_no_ptr ')' // redundant parenthesis
[4d51835]	3761	{ $$ = $2; }
[1f771fc]	3762	\| '(' attribute_list function_type_no_ptr ')' // redundant parenthesis
	3763	{ $$ = $3->addQualifiers( $2 ); }
	3764	;
	3765
	3766	function_type_ptr:
	3767	ptrref_operator function_type_redeclarator
	3768	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
	3769	\| ptrref_operator type_qualifier_list function_type_redeclarator
	3770	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
	3771	\| '(' function_type_ptr ')' attribute_list_opt
	3772	{ $$ = $2->addQualifiers( $4 ); }
	3773	\| '(' attribute_list function_type_ptr ')' attribute_list_opt
	3774	{ $$ = $3->addQualifiers( $2 )->addQualifiers( $5 ); }
	3775	;
	3776
	3777	function_type_array:
	3778	'(' function_type_ptr ')' array_dimension
	3779	{ $$ = $2->addArray( $4 ); }
	3780	\| '(' attribute_list function_type_ptr ')' array_dimension
	3781	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3782	\| '(' function_type_array ')' multi_array_dimension // redundant parenthesis
	3783	{ $$ = $2->addArray( $4 ); }
	3784	\| '(' attribute_list function_type_array ')' multi_array_dimension // redundant parenthesis
	3785	{ $$ = $3->addQualifiers( $2 )->addArray( $5 ); }
	3786	\| '(' function_type_array ')' // redundant parenthesis
[4d51835]	3787	{ $$ = $2; }
[1f771fc]	3788	\| '(' attribute_list function_type_array ')' // redundant parenthesis
[5e25953]	3789	{ $$ = $3->addQualifiers( $2 ); }
[4d51835]	3790	;
[51b73452]	3791
[c0aa336]	3792	// This pattern parses a declaration for a parameter variable of a function prototype or actual that is not redefining a
	3793	// typedef name and allows the C99 array options, which can only appear in a parameter list. The pattern precludes
	3794	// declaring an array of functions versus a pointer to an array of functions, and returning arrays and functions versus
	3795	// pointers to arrays and functions.
[51b73452]	3796
	3797	identifier_parameter_declarator:
[4d51835]	3798	paren_identifier attribute_list_opt
[1db21619]	3799	{ $$ = $1->addQualifiers( $2 ); }
[b6b3c42]	3800	\| '&' MUTEX paren_identifier attribute_list_opt
[6cef439]	3801	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3802	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[4d51835]	3803	\| identifier_parameter_ptr
	3804	\| identifier_parameter_array attribute_list_opt
[1db21619]	3805	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3806	\| identifier_parameter_function attribute_list_opt
[1db21619]	3807	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3808	;
[51b73452]	3809
	3810	identifier_parameter_ptr:
[dd51906]	3811	ptrref_operator identifier_parameter_declarator
[a5f9444]	3812	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3813	\| ptrref_operator type_qualifier_list identifier_parameter_declarator
[ce8c12f]	3814	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3815	\| '(' identifier_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3816	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3817	;
[51b73452]	3818
	3819	identifier_parameter_array:
[4d51835]	3820	paren_identifier array_parameter_dimension
	3821	{ $$ = $1->addArray( $2 ); }
	3822	\| '(' identifier_parameter_ptr ')' array_dimension
	3823	{ $$ = $2->addArray( $4 ); }
	3824	\| '(' identifier_parameter_array ')' multi_array_dimension // redundant parenthesis
	3825	{ $$ = $2->addArray( $4 ); }
	3826	\| '(' identifier_parameter_array ')' // redundant parenthesis
	3827	{ $$ = $2; }
	3828	;
[51b73452]	3829
	3830	identifier_parameter_function:
[647e2ea]	3831	paren_identifier '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3832	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3833	\| '(' identifier_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3834	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3835	\| '(' identifier_parameter_function ')' // redundant parenthesis
	3836	{ $$ = $2; }
	3837	;
[b87a5ed]	3838
[de62360d]	3839	// This pattern parses a declaration for a parameter variable or function prototype that is redefining a typedef name,
	3840	// e.g.:
[c11e31c]	3841	//
[b87a5ed]	3842	// typedef int foo;
[114014c]	3843	// forall( otype T ) struct foo;
[b87a5ed]	3844	// int f( int foo ); // redefine typedef name in new scope
[c11e31c]	3845	//
[c0aa336]	3846	// and allows the C99 array options, which can only appear in a parameter list.
[51b73452]	3847
[2871210]	3848	type_parameter_redeclarator:
[f9c3100]	3849	typedef_name attribute_list_opt
[1db21619]	3850	{ $$ = $1->addQualifiers( $2 ); }
[f9c3100]	3851	\| '&' MUTEX typedef_name attribute_list_opt
[6cef439]	3852	{ $$ = $3->addPointer( DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
[647e2ea]	3853	OperKinds::AddressOf ) )->addQualifiers( $4 ); }
[2871210]	3854	\| type_parameter_ptr
	3855	\| type_parameter_array attribute_list_opt
[1db21619]	3856	{ $$ = $1->addQualifiers( $2 ); }
[2871210]	3857	\| type_parameter_function attribute_list_opt
[1db21619]	3858	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3859	;
[51b73452]	3860
[f9c3100]	3861	typedef_name:
[4d51835]	3862	TYPEDEFname
[7fdb94e1]	3863	{ $$ = DeclarationNode::newName( $1 ); }
[2871210]	3864	\| TYPEGENname
[7fdb94e1]	3865	{ $$ = DeclarationNode::newName( $1 ); }
[4d51835]	3866	;
[51b73452]	3867
[2871210]	3868	type_parameter_ptr:
[dd51906]	3869	ptrref_operator type_parameter_redeclarator
[a5f9444]	3870	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3871	\| ptrref_operator type_qualifier_list type_parameter_redeclarator
[ce8c12f]	3872	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	3873	\| '(' type_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	3874	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3875	;
[51b73452]	3876
[2871210]	3877	type_parameter_array:
[f9c3100]	3878	typedef_name array_parameter_dimension
[4d51835]	3879	{ $$ = $1->addArray( $2 ); }
[2871210]	3880	\| '(' type_parameter_ptr ')' array_parameter_dimension
[4d51835]	3881	{ $$ = $2->addArray( $4 ); }
	3882	;
[51b73452]	3883
[2871210]	3884	type_parameter_function:
[7e13b11]	3885	typedef_name '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3886	{ $$ = $1->addParamList( $3 ); }
[647e2ea]	3887	\| '(' type_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3888	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3889	;
[b87a5ed]	3890
[de62360d]	3891	// This pattern parses a declaration of an abstract variable or function prototype, i.e., there is no identifier to
	3892	// which the type applies, e.g.:
[c11e31c]	3893	//
[b87a5ed]	3894	// sizeof( int );
[c0aa336]	3895	// sizeof( int * );
[b87a5ed]	3896	// sizeof( int [10] );
[c0aa336]	3897	// sizeof( int (*)() );
	3898	// sizeof( int () );
[c11e31c]	3899	//
[de62360d]	3900	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
	3901	// and functions versus pointers to arrays and functions.
[51b73452]	3902
	3903	abstract_declarator:
[4d51835]	3904	abstract_ptr
	3905	\| abstract_array attribute_list_opt
[1db21619]	3906	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3907	\| abstract_function attribute_list_opt
[1db21619]	3908	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	3909	;
[51b73452]	3910
	3911	abstract_ptr:
[dd51906]	3912	ptrref_operator
[a5f9444]	3913	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	3914	\| ptrref_operator type_qualifier_list
[ce8c12f]	3915	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	3916	\| ptrref_operator abstract_declarator
[a5f9444]	3917	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	3918	\| ptrref_operator type_qualifier_list abstract_declarator
[ce8c12f]	3919	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[c0aa336]	3920	\| '(' abstract_ptr ')' attribute_list_opt
	3921	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	3922	;
[51b73452]	3923
	3924	abstract_array:
[4d51835]	3925	array_dimension
	3926	\| '(' abstract_ptr ')' array_dimension
	3927	{ $$ = $2->addArray( $4 ); }
	3928	\| '(' abstract_array ')' multi_array_dimension // redundant parenthesis
	3929	{ $$ = $2->addArray( $4 ); }
	3930	\| '(' abstract_array ')' // redundant parenthesis
	3931	{ $$ = $2; }
	3932	;
[51b73452]	3933
	3934	abstract_function:
[7e13b11]	3935	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3936	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	3937	\| '(' abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	3938	{ $$ = $2->addParamList( $5 ); }
[4d51835]	3939	\| '(' abstract_function ')' // redundant parenthesis
	3940	{ $$ = $2; }
	3941	;
[51b73452]	3942
	3943	array_dimension:
[4d51835]	3944	// Only the first dimension can be empty.
[2871210]	3945	'[' ']'
[a5f9444]	3946	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[2871210]	3947	\| '[' ']' multi_array_dimension
[a5f9444]	3948	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false )->addArray( $3 ); }
[910e1d0]	3949	// Cannot use constant_expression because of tuples => semantic check
[d41735a]	3950	\| '[' push assignment_expression pop ',' comma_expression ']' // CFA
[a5f9444]	3951	{ $$ = DeclarationNode::newArray( $3, nullptr, false )->addArray( DeclarationNode::newArray( $6, nullptr, false ) ); }
[6a99803]	3952	// { SemanticError( yylloc, "New array dimension is currently unimplemented." ); $$ = nullptr; }
[647e2ea]	3953
	3954	// If needed, the following parses and does not use comma_expression, so the array structure can be built.
	3955	// \| '[' push assignment_expression pop ',' push array_dimension_list pop ']' // CFA
	3956
[d41735a]	3957	\| '[' push array_type_list pop ']' // CFA
[0b0a285]	3958	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[4d51835]	3959	\| multi_array_dimension
	3960	;
[51b73452]	3961
[647e2ea]	3962	// array_dimension_list:
	3963	// assignment_expression
	3964	// \| array_dimension_list ',' assignment_expression
	3965	// ;
	3966
[d41735a]	3967	array_type_list:
	3968	basic_type_name
[bb7422a]	3969	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3970	\| type_name
[bb7422a]	3971	{ $$ = new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $1 ) ) ); }
[d41735a]	3972	\| assignment_expression upupeq assignment_expression
	3973	\| array_type_list ',' basic_type_name
[b93c544]	3974	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[bb7422a]	3975	\| array_type_list ',' type_name
[b93c544]	3976	{ $$ = $1->set_last( new ExpressionNode( new ast::TypeExpr( yylloc, maybeMoveBuildType( $3 ) ) ) ); }
[d41735a]	3977	\| array_type_list ',' assignment_expression upupeq assignment_expression
	3978	;
	3979
	3980	upupeq:
	3981	'~'
	3982	{ $$ = OperKinds::LThan; }
	3983	\| ErangeUpEq
	3984	{ $$ = OperKinds::LEThan; }
[9fd9d015]	3985	;
[d41735a]	3986
[51b73452]	3987	multi_array_dimension:
[c0a33d2]	3988	'[' push assignment_expression pop ']'
[a5f9444]	3989	{ $$ = DeclarationNode::newArray( $3, nullptr, false ); }
[c0a33d2]	3990	\| '[' push '*' pop ']' // C99
[4d51835]	3991	{ $$ = DeclarationNode::newVarArray( 0 ); }
[c0a33d2]	3992	\| multi_array_dimension '[' push assignment_expression pop ']'
[a5f9444]	3993	{ $$ = $1->addArray( DeclarationNode::newArray( $4, nullptr, false ) ); }
[c0a33d2]	3994	\| multi_array_dimension '[' push '*' pop ']' // C99
[4d51835]	3995	{ $$ = $1->addArray( DeclarationNode::newVarArray( 0 ) ); }
	3996	;
[51b73452]	3997
[c11e31c]	3998	// This pattern parses a declaration of a parameter abstract variable or function prototype, i.e., there is no
	3999	// identifier to which the type applies, e.g.:
	4000	//
[c0aa336]	4001	// int f( int ); // not handled here
	4002	// int f( int * ); // abstract function-prototype parameter; no parameter name specified
	4003	// int f( int (*)() ); // abstract function-prototype parameter; no parameter name specified
[b87a5ed]	4004	// int f( int (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4005	//
[de62360d]	4006	// The pattern precludes declaring an array of functions versus a pointer to an array of functions, and returning arrays
[c0aa336]	4007	// and functions versus pointers to arrays and functions. In addition, the pattern handles the
	4008	// special meaning of parenthesis around a typedef name:
	4009	//
	4010	// ISO/IEC 9899:1999 Section 6.7.5.3(11) : "In a parameter declaration, a single typedef name in
	4011	// parentheses is taken to be an abstract declarator that specifies a function with a single parameter,
	4012	// not as redundant parentheses around the identifier."
	4013	//
	4014	// For example:
	4015	//
	4016	// typedef float T;
	4017	// int f( int ( T [5] ) ); // see abstract_parameter_declarator
	4018	// int g( int ( T ( int ) ) ); // see abstract_parameter_declarator
	4019	// int f( int f1( T a[5] ) ); // see identifier_parameter_declarator
	4020	// int g( int g1( T g2( int p ) ) ); // see identifier_parameter_declarator
	4021	//
	4022	// In essence, a '(' immediately to the left of typedef name, T, is interpreted as starting a parameter type list, and
	4023	// not as redundant parentheses around a redeclaration of T. Finally, the pattern also precludes declaring an array of
	4024	// functions versus a pointer to an array of functions, and returning arrays and functions versus pointers to arrays and
	4025	// functions.
[51b73452]	4026
[59c7e3e]	4027	abstract_parameter_declarator_opt:
	4028	// empty
	4029	{ $$ = nullptr; }
	4030	\| abstract_parameter_declarator
	4031	;
	4032
[51b73452]	4033	abstract_parameter_declarator:
[4d51835]	4034	abstract_parameter_ptr
[b6b3c42]	4035	\| '&' MUTEX attribute_list_opt
[446740a]	4036	{ $$ = DeclarationNode::newPointer( DeclarationNode::newFromTypeData( build_type_qualifier( ast::CV::Mutex ) ),
	4037	OperKinds::AddressOf )->addQualifiers( $3 ); }
[4d51835]	4038	\| abstract_parameter_array attribute_list_opt
[1db21619]	4039	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4040	\| abstract_parameter_function attribute_list_opt
[1db21619]	4041	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4042	;
[51b73452]	4043
	4044	abstract_parameter_ptr:
[dd51906]	4045	ptrref_operator
[ce8c12f]	4046	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4047	\| ptrref_operator type_qualifier_list
[ce8c12f]	4048	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4049	\| ptrref_operator abstract_parameter_declarator
[ce8c12f]	4050	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4051	\| ptrref_operator type_qualifier_list abstract_parameter_declarator
[ce8c12f]	4052	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4053	\| '(' abstract_parameter_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4054	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4055	;
[51b73452]	4056
	4057	abstract_parameter_array:
[4d51835]	4058	array_parameter_dimension
	4059	\| '(' abstract_parameter_ptr ')' array_parameter_dimension
	4060	{ $$ = $2->addArray( $4 ); }
	4061	\| '(' abstract_parameter_array ')' multi_array_dimension // redundant parenthesis
	4062	{ $$ = $2->addArray( $4 ); }
	4063	\| '(' abstract_parameter_array ')' // redundant parenthesis
	4064	{ $$ = $2; }
	4065	;
[51b73452]	4066
	4067	abstract_parameter_function:
[7e13b11]	4068	'(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4069	{ $$ = DeclarationNode::newFunction( nullptr, nullptr, $2, nullptr ); }
[647e2ea]	4070	\| '(' abstract_parameter_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4071	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4072	\| '(' abstract_parameter_function ')' // redundant parenthesis
	4073	{ $$ = $2; }
	4074	;
[51b73452]	4075
	4076	array_parameter_dimension:
[4d51835]	4077	// Only the first dimension can be empty or have qualifiers.
	4078	array_parameter_1st_dimension
	4079	\| array_parameter_1st_dimension multi_array_dimension
	4080	{ $$ = $1->addArray( $2 ); }
	4081	\| multi_array_dimension
	4082	;
[51b73452]	4083
[c11e31c]	4084	// The declaration of an array parameter has additional syntax over arrays in normal variable declarations:
	4085	//
[de62360d]	4086	// ISO/IEC 9899:1999 Section 6.7.5.2(1) : "The optional type qualifiers and the keyword static shall appear only in
	4087	// a declaration of a function parameter with an array type, and then only in the outermost array type derivation."
[51b73452]	4088
	4089	array_parameter_1st_dimension:
[2871210]	4090	'[' ']'
[a5f9444]	4091	{ $$ = DeclarationNode::newArray( nullptr, nullptr, false ); }
[13e8427]	4092	// multi_array_dimension handles the '[' '*' ']' case
[c0a33d2]	4093	\| '[' push type_qualifier_list '*' pop ']' // remaining C99
	4094	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4095	\| '[' push type_qualifier_list pop ']'
[a5f9444]	4096	{ $$ = DeclarationNode::newArray( nullptr, $3, false ); }
[13e8427]	4097	// multi_array_dimension handles the '[' assignment_expression ']' case
[c0a33d2]	4098	\| '[' push type_qualifier_list assignment_expression pop ']'
	4099	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4100	\| '[' push STATIC type_qualifier_list_opt assignment_expression pop ']'
	4101	{ $$ = DeclarationNode::newArray( $5, $4, true ); }
	4102	\| '[' push type_qualifier_list STATIC assignment_expression pop ']'
	4103	{ $$ = DeclarationNode::newArray( $5, $3, true ); }
[4d51835]	4104	;
[b87a5ed]	4105
[c0aa336]	4106	// This pattern parses a declaration of an abstract variable, but does not allow "int ()" for a function pointer.
[c11e31c]	4107	//
[71a422a]	4108	// struct S {
	4109	// int;
	4110	// int *;
	4111	// int [10];
	4112	// int (*)();
	4113	// };
[51b73452]	4114
	4115	variable_abstract_declarator:
[4d51835]	4116	variable_abstract_ptr
	4117	\| variable_abstract_array attribute_list_opt
[1db21619]	4118	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4119	\| variable_abstract_function attribute_list_opt
[1db21619]	4120	{ $$ = $1->addQualifiers( $2 ); }
[4d51835]	4121	;
[51b73452]	4122
	4123	variable_abstract_ptr:
[dd51906]	4124	ptrref_operator
[a5f9444]	4125	{ $$ = DeclarationNode::newPointer( nullptr, $1 ); }
[dd51906]	4126	\| ptrref_operator type_qualifier_list
[ce8c12f]	4127	{ $$ = DeclarationNode::newPointer( $2, $1 ); }
[dd51906]	4128	\| ptrref_operator variable_abstract_declarator
[a5f9444]	4129	{ $$ = $2->addPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4130	\| ptrref_operator type_qualifier_list variable_abstract_declarator
[ce8c12f]	4131	{ $$ = $3->addPointer( DeclarationNode::newPointer( $2, $1 ) ); }
[5e25953]	4132	\| '(' variable_abstract_ptr ')' attribute_list_opt // redundant parenthesis
[c0aa336]	4133	{ $$ = $2->addQualifiers( $4 ); }
[4d51835]	4134	;
[51b73452]	4135
	4136	variable_abstract_array:
[4d51835]	4137	array_dimension
	4138	\| '(' variable_abstract_ptr ')' array_dimension
	4139	{ $$ = $2->addArray( $4 ); }
	4140	\| '(' variable_abstract_array ')' multi_array_dimension // redundant parenthesis
	4141	{ $$ = $2->addArray( $4 ); }
	4142	\| '(' variable_abstract_array ')' // redundant parenthesis
	4143	{ $$ = $2; }
	4144	;
[51b73452]	4145
	4146	variable_abstract_function:
[647e2ea]	4147	'(' variable_abstract_ptr ')' '(' parameter_list_ellipsis_opt ')' // empty parameter list OBSOLESCENT (see 3)
[71a422a]	4148	{ $$ = $2->addParamList( $5 ); }
[4d51835]	4149	\| '(' variable_abstract_function ')' // redundant parenthesis
	4150	{ $$ = $2; }
	4151	;
[b87a5ed]	4152
[de62360d]	4153	// This pattern parses a new-style declaration for a parameter variable or function prototype that is either an
	4154	// identifier or typedef name and allows the C99 array options, which can only appear in a parameter list.
[b87a5ed]	4155
[c0aa336]	4156	cfa_identifier_parameter_declarator_tuple: // CFA
	4157	cfa_identifier_parameter_declarator_no_tuple
	4158	\| cfa_abstract_tuple
	4159	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4160	{ $$ = $2->addQualifiers( $1 ); }
	4161	;
[b87a5ed]	4162
[c0aa336]	4163	cfa_identifier_parameter_declarator_no_tuple: // CFA
	4164	cfa_identifier_parameter_ptr
	4165	\| cfa_identifier_parameter_array
[4d51835]	4166	;
[b87a5ed]	4167
[c0aa336]	4168	cfa_identifier_parameter_ptr: // CFA
[d0ffed1]	4169	// No SUE declaration in parameter list.
	4170	ptrref_operator type_specifier_nobody
[a5f9444]	4171	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[d0ffed1]	4172	\| type_qualifier_list ptrref_operator type_specifier_nobody
[ce8c12f]	4173	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4174	\| ptrref_operator cfa_abstract_function
[a5f9444]	4175	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4176	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4177	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4178	\| ptrref_operator cfa_identifier_parameter_declarator_tuple
[a5f9444]	4179	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4180	\| type_qualifier_list ptrref_operator cfa_identifier_parameter_declarator_tuple
[ce8c12f]	4181	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4182	;
[b87a5ed]	4183
[c0aa336]	4184	cfa_identifier_parameter_array: // CFA
[de62360d]	4185	// Only the first dimension can be empty or have qualifiers. Empty dimension must be factored out due to
	4186	// shift/reduce conflict with new-style empty (void) function return type.
[d0ffed1]	4187	'[' ']' type_specifier_nobody
[a5f9444]	4188	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4189	\| cfa_array_parameter_1st_dimension type_specifier_nobody
[4d51835]	4190	{ $$ = $2->addNewArray( $1 ); }
[d0ffed1]	4191	\| '[' ']' multi_array_dimension type_specifier_nobody
[a5f9444]	4192	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[d0ffed1]	4193	\| cfa_array_parameter_1st_dimension multi_array_dimension type_specifier_nobody
[4d51835]	4194	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[d0ffed1]	4195	\| multi_array_dimension type_specifier_nobody
[4d51835]	4196	{ $$ = $2->addNewArray( $1 ); }
[9059213]	4197
[c0aa336]	4198	\| '[' ']' cfa_identifier_parameter_ptr
[a5f9444]	4199	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4200	\| cfa_array_parameter_1st_dimension cfa_identifier_parameter_ptr
[4d51835]	4201	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4202	\| '[' ']' multi_array_dimension cfa_identifier_parameter_ptr
[a5f9444]	4203	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4204	\| cfa_array_parameter_1st_dimension multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4205	{ $$ = $3->addNewArray( $2 )->addNewArray( $1 ); }
[c0aa336]	4206	\| multi_array_dimension cfa_identifier_parameter_ptr
[4d51835]	4207	{ $$ = $2->addNewArray( $1 ); }
	4208	;
[51b73452]	4209
[c0aa336]	4210	cfa_array_parameter_1st_dimension:
[c0a33d2]	4211	'[' push type_qualifier_list '*' pop ']' // remaining C99
	4212	{ $$ = DeclarationNode::newVarArray( $3 ); }
	4213	\| '[' push type_qualifier_list assignment_expression pop ']'
	4214	{ $$ = DeclarationNode::newArray( $4, $3, false ); }
	4215	\| '[' push declaration_qualifier_list assignment_expression pop ']'
[4d51835]	4216	// declaration_qualifier_list must be used because of shift/reduce conflict with
	4217	// assignment_expression, so a semantic check is necessary to preclude them as a type_qualifier cannot
	4218	// appear in this context.
[c0a33d2]	4219	{ $$ = DeclarationNode::newArray( $4, $3, true ); }
	4220	\| '[' push declaration_qualifier_list type_qualifier_list assignment_expression pop ']'
	4221	{ $$ = DeclarationNode::newArray( $5, $4->addQualifiers( $3 ), true ); }
[4d51835]	4222	;
[b87a5ed]	4223
[de62360d]	4224	// This pattern parses a new-style declaration of an abstract variable or function prototype, i.e., there is no
	4225	// identifier to which the type applies, e.g.:
[c11e31c]	4226	//
[b87a5ed]	4227	// [int] f( int ); // abstract variable parameter; no parameter name specified
	4228	// [int] f( [int] (int) ); // abstract function-prototype parameter; no parameter name specified
[c11e31c]	4229	//
	4230	// These rules need LR(3):
	4231	//
[c0aa336]	4232	// cfa_abstract_tuple identifier_or_type_name
[647e2ea]	4233	// '[' cfa_parameter_list ']' identifier_or_type_name '(' cfa_parameter_list_ellipsis_opt ')'
[c11e31c]	4234	//
	4235	// since a function return type can be syntactically identical to a tuple type:
	4236	//
[b87a5ed]	4237	// [int, int] t;
	4238	// [int, int] f( int );
[c11e31c]	4239	//
[2871210]	4240	// Therefore, it is necessary to look at the token after identifier_or_type_name to know when to reduce
[c0aa336]	4241	// cfa_abstract_tuple. To make this LR(1), several rules have to be flattened (lengthened) to allow the necessary
	4242	// lookahead. To accomplish this, cfa_abstract_declarator has an entry point without tuple, and tuple declarations are
	4243	// duplicated when appearing with cfa_function_specifier.
[b87a5ed]	4244
[c0aa336]	4245	cfa_abstract_declarator_tuple: // CFA
	4246	cfa_abstract_tuple
	4247	\| type_qualifier_list cfa_abstract_tuple
[4d51835]	4248	{ $$ = $2->addQualifiers( $1 ); }
[c0aa336]	4249	\| cfa_abstract_declarator_no_tuple
[4d51835]	4250	;
[b87a5ed]	4251
[c0aa336]	4252	cfa_abstract_declarator_no_tuple: // CFA
	4253	cfa_abstract_ptr
	4254	\| cfa_abstract_array
[4d51835]	4255	;
[b87a5ed]	4256
[c0aa336]	4257	cfa_abstract_ptr: // CFA
[dd51906]	4258	ptrref_operator type_specifier
[a5f9444]	4259	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[dd51906]	4260	\| type_qualifier_list ptrref_operator type_specifier
[ce8c12f]	4261	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4262	\| ptrref_operator cfa_abstract_function
[a5f9444]	4263	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4264	\| type_qualifier_list ptrref_operator cfa_abstract_function
[ce8c12f]	4265	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[c0aa336]	4266	\| ptrref_operator cfa_abstract_declarator_tuple
[a5f9444]	4267	{ $$ = $2->addNewPointer( DeclarationNode::newPointer( nullptr, $1 ) ); }
[c0aa336]	4268	\| type_qualifier_list ptrref_operator cfa_abstract_declarator_tuple
[ce8c12f]	4269	{ $$ = $3->addNewPointer( DeclarationNode::newPointer( $1, $2 ) ); }
[4d51835]	4270	;
[b87a5ed]	4271
[c0aa336]	4272	cfa_abstract_array: // CFA
[de62360d]	4273	// Only the first dimension can be empty. Empty dimension must be factored out due to shift/reduce conflict with
	4274	// empty (void) function return type.
[2871210]	4275	'[' ']' type_specifier
[2298f728]	4276	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[2871210]	4277	\| '[' ']' multi_array_dimension type_specifier
[2298f728]	4278	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[4d51835]	4279	\| multi_array_dimension type_specifier
	4280	{ $$ = $2->addNewArray( $1 ); }
[c0aa336]	4281	\| '[' ']' cfa_abstract_ptr
[2298f728]	4282	{ $$ = $3->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4283	\| '[' ']' multi_array_dimension cfa_abstract_ptr
[2298f728]	4284	{ $$ = $4->addNewArray( $3 )->addNewArray( DeclarationNode::newArray( nullptr, nullptr, false ) ); }
[c0aa336]	4285	\| multi_array_dimension cfa_abstract_ptr
[4d51835]	4286	{ $$ = $2->addNewArray( $1 ); }
	4287	;
[b87a5ed]	4288
[c0aa336]	4289	cfa_abstract_tuple: // CFA
[c0a33d2]	4290	'[' push cfa_abstract_parameter_list pop ']'
	4291	{ $$ = DeclarationNode::newTuple( $3 ); }
[35718a9]	4292	\| '[' push type_specifier_nobody ELLIPSIS pop ']'
[13e8427]	4293	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[35718a9]	4294	\| '[' push type_specifier_nobody ELLIPSIS constant_expression pop ']'
[13e8427]	4295	{ SemanticError( yylloc, "Tuple array currently unimplemented." ); $$ = nullptr; }
[4d51835]	4296	;
[b87a5ed]	4297
[c0aa336]	4298	cfa_abstract_function: // CFA
[647e2ea]	4299	'[' ']' '(' cfa_parameter_list_ellipsis_opt ')'
	4300	{ $$ = DeclarationNode::newFunction( nullptr, DeclarationNode::newTuple( nullptr ), $4, nullptr ); }
	4301	\| cfa_abstract_tuple '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4302	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[647e2ea]	4303	\| cfa_function_return '(' push cfa_parameter_list_ellipsis_opt pop ')'
[c0a33d2]	4304	{ $$ = DeclarationNode::newFunction( nullptr, $1, $4, nullptr ); }
[4d51835]	4305	;
[b87a5ed]	4306
[de62360d]	4307	// 1) ISO/IEC 9899:1999 Section 6.7.2(2) : "At least one type specifier shall be given in the declaration specifiers in
	4308	// each declaration, and in the specifier-qualifier list in each structure declaration and type name."
[c11e31c]	4309	//
[de62360d]	4310	// 2) ISO/IEC 9899:1999 Section 6.11.5(1) : "The placement of a storage-class specifier other than at the beginning of
	4311	// the declaration specifiers in a declaration is an obsolescent feature."
[c11e31c]	4312	//
	4313	// 3) ISO/IEC 9899:1999 Section 6.11.6(1) : "The use of function declarators with empty parentheses (not
	4314	// prototype-format parameter type declarators) is an obsolescent feature."
	4315	//
[de62360d]	4316	// 4) ISO/IEC 9899:1999 Section 6.11.7(1) : "The use of function definitions with separate parameter identifier and
	4317	// declaration lists (not prototype-format parameter type and identifier declarators) is an obsolescent feature.
[51b73452]	4318
[e1d66c84]	4319	// ********************** MISCELLANEOUS ******************************
[51b73452]	4320
[b87a5ed]	4321	comma_opt: // redundant comma
[4d51835]	4322	// empty
	4323	\| ','
	4324	;
[51b73452]	4325
[5a51798]	4326	default_initializer_opt:
[4d51835]	4327	// empty
[58dd019]	4328	{ $$ = nullptr; }
[4d51835]	4329	\| '=' assignment_expression
	4330	{ $$ = $2; }
	4331	;
[51b73452]	4332
	4333	%%
[a1c9ddd]	4334
[c11e31c]	4335	// ----end of grammar----
[51b73452]	4336
[c11e31c]	4337	// Local Variables: //
[b87a5ed]	4338	// mode: c++ //
[de62360d]	4339	// tab-width: 4 //
[7e13b11]	4340	// compile-command: "bison -Wcounterexamples parser.yy" //
[c11e31c]	4341	// End: //

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