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source: src/AST/Print.cpp @ 49ae2bc

Last change on this file since 49ae2bc was cf3da24, checked in by Andrew Beach <ajbeach@…>, 9 months ago
Fixed up some whitespace. Pretty minor stuff mostly.
Property mode set to `100644`
File size: 40.4 KB

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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	//
7	// Print.cpp -- Print an AST (or sub-tree) to a stream.
8	//
9	// Author : Thierry Delisle
10	// Created On : Tue May 21 16:20:15 2019
11	// Last Modified By :
12	// Last Modified On :
13	// Update Count :
14	//
15
16	#include "Print.hpp"
17
18	#include "Attribute.hpp"
19	#include "Decl.hpp"
20	#include "Expr.hpp"
21	#include "Init.hpp"
22	#include "Stmt.hpp"
23	#include "Type.hpp"
24	#include "TypeSubstitution.hpp"
25	#include "CompilationState.h"
26	#include "Common/Iterate.hpp"
27
28	using namespace std;
29
30	namespace ast {
31
32	namespace {
33
34	template<typename C, typename... T>
35	constexpr array<C, sizeof...(T)> make_array( T&&... values ) {
36	return array<C, sizeof...(T)>{ std::forward<T>( values )... };
37	}
38
39	namespace Names {
40	static constexpr auto FuncSpecifiers = make_array<const char*>(
41	"inline", "_Noreturn", "fortran"
42	);
43
44	static constexpr auto StorageClasses = make_array<const char*>(
45	"extern", "static", "auto", "register", "__thread", "_Thread_local"
46	);
47
48	static constexpr auto Qualifiers = make_array<const char*>(
49	"const", "restrict", "volatile", "mutex", "_Atomic"
50	);
51	}
52
53	template<typename bits_t, size_t N>
54	void print( ostream & os, const bits_t & bits,
55	const array<const char *, N> & names ) {
56	if ( !bits.any() ) return;
57	for ( size_t i = 0 ; i < N ; i += 1 ) {
58	if ( bits[i] ) {
59	os << names[i] << ' ';
60	}
61	}
62	}
63
64	class Printer final : public Visitor {
65	public:
66	ostream & os;
67	Indenter indent;
68	bool short_mode;
69
70	Printer(ostream & os, Indenter indent, bool short_mode) : os( os ), indent( indent ), short_mode(short_mode) {}
71
72	private:
73	template< typename C >
74	void printAll( const C & c ) {
75	for ( const auto & i : c ) {
76	if ( i ) {
77	os << indent;
78	i->accept( *this );
79	// need an endl after each element because it's not
80	// easy to know when each individual item should end
81	os << endl;
82	} // if
83	} // for
84	}
85
86	/// call if mandatory field is missing
87	void undefined() {
88	os << "UNDEFINED";
89	}
90
91	/// call for fields that should be mandatory
92	void safe_print( const ast::Node * n ) {
93	if ( n ) n->accept( *this );
94	else undefined();
95	}
96
97	/// call to print short form. Incorporates features of safe_print()
98	void short_print( const ast::Decl * n ) {
99	if ( ! n ) { undefined(); return; }
100	bool old_short = short_mode; short_mode = true;
101	n->accept( *this );
102	short_mode = old_short;
103	}
104
105	static const char* Names[];
106
107	void print( const std::vector<ast::Label> & labels ) {
108	if ( labels.empty() ) return;
109	os << indent << "... Labels: {";
110	bool isFirst = true;
111	for ( const Label & l : labels ) {
112	if ( isFirst ) { isFirst = false; } else { os << ","; }
113	os << l;
114	}
115	os << "}" << endl;
116	}
117
118	void print( const ast::Expr::InferUnion & inferred, unsigned level = 0 ) {
119	if (inferred.data.resnSlots && !inferred.data.resnSlots->empty()) {
120	os << indent << "with " << inferred.data.resnSlots->size()
121	<< " pending inference slots" << endl;
122	}
123	if (inferred.data.inferParams && !inferred.data.inferParams->empty()) {
124	os << indent << "with inferred parameters " << level << ":" << endl;
125	++indent;
126	for ( const auto & i : *inferred.data.inferParams ) {
127	os << indent;
128	short_print( i.second.declptr );
129	os << endl;
130	print( i.second.expr->inferred, level+1 );
131	}
132	--indent;
133	}
134	}
135
136	void print( const ast::FunctionType::ForallList & forall ) {
137	if ( forall.empty() ) return;
138	os << "forall" << endl;
139	++indent;
140	printAll( forall );
141	os << indent;
142	--indent;
143	}
144
145	void print( const ast::FunctionType::AssertionList & assts ) {
146	if (assts.empty()) return;
147	os << "with assertions" << endl;
148	++indent;
149	printAll(assts);
150	os << indent;
151	--indent;
152	}
153
154	void print( const std::vector<ptr<Attribute>> & attrs ) {
155	if ( attrs.empty() ) return;
156	os << "with attributes" << endl;
157	++indent;
158	printAll( attrs );
159	--indent;
160	}
161
162	void print( const std::vector<ptr<Expr>> & params ) {
163	if ( params.empty() ) return;
164	os << endl << indent << "... with parameters" << endl;
165	++indent;
166	printAll( params );
167	--indent;
168	}
169
170	void print( const ast::AggregateDecl * node ) {
171	os << node->typeString() << " " << node->name;
172
173	if ( ! short_mode && node->linkage != Linkage::Cforall ) {
174	os << " " << Linkage::name( node->linkage );
175	}
176
177	os << " " << (node->body ? "with" : "without") << " body";
178
179	if ( ! node->params.empty() ) {
180	os << endl << indent << "... with parameters" << endl;
181	++indent;
182	printAll( node->params );
183	--indent;
184	}
185
186	if ( ! short_mode && ! node->members.empty() ) {
187	os << endl << indent << "... with members" << endl;
188	++indent;
189	printAll( node->members );
190	--indent;
191	}
192
193	if ( ! short_mode && ! node->attributes.empty() ) {
194	os << endl << indent << "... with attributes" << endl;
195	++indent;
196	printAll( node->attributes );
197	--indent;
198	}
199
200	auto ptrToEnum = dynamic_cast<const ast::EnumDecl *>(node);
201	if ( ! short_mode && ptrToEnum && ptrToEnum->base ) {
202	os << endl << indent << ".. with (enum) base" << endl;
203	++indent;
204	ptrToEnum->base->accept( *this );
205	--indent;
206	}
207
208	os << endl;
209	}
210
211	void print( const ast::WaitStmt * node ) {
212	if ( node->timeout_time ) {
213	os << indent-1 << "timeout of:" << endl;
214	node->timeout_time->accept( *this );
215
216	if ( node->timeout_stmt ) {
217	os << indent-1 << "... with statment:" << endl;
218	node->timeout_stmt->accept( *this );
219	}
220
221	if ( node->timeout_cond ) {
222	os << indent-1 << "... with condition:" << endl;
223	node->timeout_cond->accept( *this );
224	}
225	}
226
227	if ( node->else_stmt ) {
228	os << indent-1 << "else:" << endl;
229	node->else_stmt->accept( *this );
230
231	if ( node->else_cond ) {
232	os << indent-1 << "... with condition:" << endl;
233	node->else_cond->accept( *this );
234	}
235	}
236	}
237
238	void preprint( const ast::NamedTypeDecl * node ) {
239	if ( ! node->name.empty() ) {
240	os << node->name << ": ";
241	}
242
243	if ( ! short_mode && node->linkage != Linkage::Cforall ) {
244	os << Linkage::name( node->linkage ) << " ";
245	}
246
247	ast::print( os, node->storage );
248	os << node->typeString();
249
250	if ( node->base ) {
251	os << " for ";
252	++indent;
253	node->base->accept( *this );
254	--indent;
255	}
256
257	if ( ! node->assertions.empty() ) {
258	os << endl << indent << "... with assertions" << endl;
259	++indent;
260	printAll( node->assertions );
261	--indent;
262	}
263	}
264
265	void postprint( const ast::Expr * node ) {
266	print( node->inferred );
267
268	if ( node->result ) {
269	os << endl << indent << "... with resolved type:" << endl;
270	++indent;
271	os << indent;
272	node->result->accept( *this );
273	--indent;
274	}
275
276	if ( node->env ) {
277	os << endl << indent << "... with environment:" << endl;
278	++indent;
279	node->env->accept( *this );
280	--indent;
281	}
282
283	if ( node->extension ) {
284	os << endl << indent << "... with extension";
285	}
286	}
287
288	void preprint( const ast::Type * node ) {
289	ast::print( os, node->qualifiers );
290	}
291
292	void preprint( const ast::FunctionType * node ) {
293	print( node->forall );
294	print( node->assertions );
295	ast::print( os, node->qualifiers );
296	}
297
298	void preprint( const ast::BaseInstType * node ) {
299	print( node->attributes );
300	ast::print( os, node->qualifiers );
301	}
302
303	public:
304	virtual const ast::DeclWithType * visit( const ast::ObjectDecl * node ) override final {
305	if ( ! node->name.empty() ) os << node->name << ": ";
306
307	if ( ! short_mode && node->linkage != Linkage::Cforall ) {
308	os << Linkage::name( node->linkage ) << " ";
309	}
310
311	ast::print( os, node->storage );
312
313	if ( node->type ) {
314	node->type->accept( *this );
315	} else {
316	os << "untyped entity";
317	}
318
319	if ( ! short_mode && node->init ) {
320	++indent;
321	os << " with initializer (" << (
322	node->init->maybeConstructed
323	? "maybe constructed"
324	: "not constructed"
325	) << ")" << endl << indent;
326	node->init->accept( *this );
327	--indent;
328	os << endl;
329	}
330
331	if ( ! short_mode && ! node->attributes.empty() ) {
332	os << endl << indent << "... with attributes:" << endl;
333	++indent;
334	printAll( node->attributes );
335	--indent;
336	}
337
338	if ( node->bitfieldWidth ) {
339	os << indent << " with bitfield width ";
340	node->bitfieldWidth->accept( *this );
341	}
342
343	return node;
344	}
345
346	virtual const ast::DeclWithType * visit( const ast::FunctionDecl * node ) override final {
347	if ( !node->name.empty() ) os << node->name << ": ";
348
349	if ( ! short_mode && node->linkage != Linkage::Cforall ) {
350	os << Linkage::name( node->linkage ) << " ";
351	}
352
353	if ( ! short_mode ) printAll( node->attributes );
354
355	ast::print( os, node->storage );
356	ast::print( os, node->funcSpec );
357
358	if ( node->type && node->isTypeFixed ) {
359	node->type->accept( *this );
360	} else {
361	if (!node->type_params.empty()) {
362	os << "forall" << endl;
363	++indent;
364	printAll(node->type_params);
365	os << indent;
366	--indent;
367
368	if (!node->assertions.empty()) {
369	os << "with assertions" << endl;
370	++indent;
371	printAll(node->assertions);
372	os << indent;
373	--indent;
374	}
375	}
376
377	os << "function" << endl;
378	if ( ! node->params.empty() ) {
379	os << indent << "... with parameters" << endl;
380	++indent;
381	printAll( node->params );
382	if ( node->type->isVarArgs ) {
383	os << indent << "and a variable number of other arguments" << endl;
384	}
385	--indent;
386	} else if ( node->type->isVarArgs ) {
387	os << indent+1 << "accepting unspecified arguments" << endl;
388	}
389
390	os << indent << "... returning";
391	if ( node->returns.empty() ) {
392	os << " nothing" << endl;
393	} else {
394	os << endl;
395	++indent;
396	printAll( node->returns );
397	--indent;
398	}
399	}
400
401	if ( ! node->withExprs.empty() ) {
402	// Not with a clause, but the 'with clause'.
403	++indent;
404	os << " with clause" << endl << indent;
405	printAll( node->withExprs );
406	--indent;
407	}
408
409	if ( ! short_mode && node->stmts ) {
410	++indent;
411	os << " with body" << endl << indent;
412	node->stmts->accept( *this );
413	--indent;
414	}
415
416	return node;
417	}
418
419	virtual const ast::Decl * visit( const ast::StructDecl * node ) override final {
420	print(node);
421	return node;
422	}
423
424	virtual const ast::DeclWithType * visit( const ast::InlineMemberDecl * node ) override final {
425	os << "inline ";
426	if ( ! node->name.empty() ) os << node->name;
427
428	return node;
429	}
430
431	virtual const ast::Decl * visit( const ast::UnionDecl * node ) override final {
432	print(node);
433	return node;
434	}
435
436	virtual const ast::Decl * visit( const ast::EnumDecl * node ) override final {
437	print(node);
438	return node;
439	}
440
441	virtual const ast::Decl * visit( const ast::TraitDecl * node ) override final {
442	print(node);
443	return node;
444	}
445
446	virtual const ast::Decl * visit( const ast::TypeDecl * node ) override final {
447	preprint( node );
448	if ( ! short_mode && node->init ) {
449	os << endl << indent << "with type initializer: ";
450	++indent;
451	node->init->accept( *this );
452	--indent;
453	}
454
455	return node;
456	}
457
458	virtual const ast::Decl * visit( const ast::TypedefDecl * node ) override final {
459	preprint( node );
460	return node;
461	}
462
463	virtual const ast::AsmDecl * visit( const ast::AsmDecl * node ) override final {
464	safe_print( node->stmt );
465	return node;
466	}
467
468	virtual const ast::DirectiveDecl * visit( const ast::DirectiveDecl * node ) override final {
469	safe_print( node->stmt );
470	return node;
471	}
472
473	virtual const ast::StaticAssertDecl * visit( const ast::StaticAssertDecl * node ) override final {
474	os << "Static Assert with condition: ";
475	++indent;
476	safe_print( node->cond );
477	os << endl << indent-1 << "and message: ";
478	safe_print( node->msg );
479	--indent;
480	os << endl;
481
482	return node;
483	}
484
485	virtual const ast::CompoundStmt * visit( const ast::CompoundStmt * node ) override final {
486	os << "Compound Statement:" << endl;
487	++indent;
488	printAll( node->kids );
489	--indent;
490	return node;
491	}
492
493	virtual const ast::Stmt * visit( const ast::ExprStmt * node ) override final {
494	++indent;
495	os << "Expression Statement:" << endl << indent;
496	safe_print( node->expr );
497	--indent;
498	return node;
499	}
500
501	virtual const ast::Stmt * visit( const ast::AsmStmt * node ) override final {
502	os << "Assembler Statement:" << endl;
503	++indent;
504	os << indent-1 << "instruction:" << endl << indent;
505	safe_print( node->instruction );
506	if ( ! node->output.empty() ) {
507	os << endl << indent << "output:" << endl;
508	printAll( node->output );
509	} // if
510	if ( ! node->input.empty() ) {
511	os << indent << "input:" << endl;
512	printAll( node->input );
513	} // if
514	if ( ! node->clobber.empty() ) {
515	os << indent << "clobber:" << endl;
516	printAll( node->clobber );
517	} // if
518	--indent;
519	return node;
520	}
521
522	virtual const ast::Stmt * visit( const ast::DirectiveStmt * node ) override final {
523	os << "GCC Directive: " << node->directive << endl;
524	return node;
525	}
526
527	virtual const ast::Stmt * visit( const ast::IfStmt * node ) override final {
528	os << "If on condition:" << endl;
529	++indent;
530	os << indent;
531	safe_print( node->cond );
532	--indent;
533
534	if ( ! node->inits.empty() ) {
535	os << indent << "... with initialization:" << endl;
536	++indent;
537	for ( const ast::Stmt * stmt : node->inits ) {
538	os << indent;
539	safe_print( stmt );
540	}
541	--indent;
542	os << endl;
543	}
544
545	os << indent << "... then:" << endl;
546
547	++indent;
548	os << indent;
549	safe_print( node->then );
550	--indent;
551
552	if ( node->else_ != 0 ) {
553	os << indent << "... else:" << endl;
554	++indent;
555	os << indent;
556	node->else_->accept( *this );
557	--indent;
558	} // if
559	return node;
560	}
561
562	virtual const ast::Stmt * visit( const ast::WhileDoStmt * node ) override final {
563	if ( node->isDoWhile ) { os << "Do-"; }
564	os << "While on condition:" << endl;
565	++indent;
566	safe_print( node->cond );
567	os << indent-1 << "... with body:" << endl;
568	safe_print( node->body );
569
570	if ( ! node->inits.empty() ) {
571	os << indent-1 << "... with inits:" << endl;
572	printAll( node->inits );
573	}
574	--indent;
575
576	return node;
577	}
578
579	virtual const ast::Stmt * visit( const ast::ForStmt * node ) override final {
580	os << "For Statement" << endl;
581
582	if ( ! node->inits.empty() ) {
583	os << indent << "... initialization:" << endl;
584	++indent;
585	for ( const ast::Stmt * stmt : node->inits ) {
586	os << indent+1;
587	safe_print( stmt );
588	}
589	--indent;
590	}
591
592	if ( node->cond ) {
593	os << indent << "... condition:" << endl;
594	++indent;
595	os << indent;
596	node->cond->accept( *this );
597	--indent;
598	}
599
600	if ( node->inc ) {
601	os << indent << "... increment:" << endl;
602	++indent;
603	os << indent;
604	node->inc->accept( *this );
605	--indent;
606	}
607
608	if ( node->body ) {
609	os << indent << "... with body:" << endl;
610	++indent;
611	os << indent;
612	node->body->accept( *this );
613	--indent;
614	}
615	os << endl;
616	print( node->labels );
617
618	return node;
619	}
620
621	virtual const ast::Stmt * visit( const ast::SwitchStmt * node ) override final {
622	os << "Switch on condition: ";
623	safe_print( node->cond );
624	os << endl;
625
626	++indent;
627	for ( const ast::CaseClause * stmt : node->cases ) {
628	stmt->accept( *this );
629	}
630	--indent;
631
632	return node;
633	}
634
635	virtual const ast::CaseClause * visit( const ast::CaseClause * node ) override final {
636	if ( node->isDefault() ) {
637	os << indent << "Default ";
638	} else {
639	os << indent << "Case ";
640	safe_print( node->cond );
641	} // if
642	os << endl;
643
644	++indent;
645	for ( const ast::Stmt * stmt : node->stmts ) {
646	os << indent;
647	stmt->accept( *this );
648	}
649	--indent;
650
651	return node;
652	}
653
654	virtual const ast::Stmt * visit( const ast::BranchStmt * node ) override final {
655	os << "Branch (" << node->kindName() << ")" << endl;
656	++indent;
657	if ( ! node->target.empty() ) {
658	os << indent << "with target: " << node->target << endl;
659	}
660
661	if ( ! node->originalTarget.empty() ) {
662	os << indent << "with original target: " << node->originalTarget << endl;
663	}
664
665	if ( node->computedTarget ) {
666	os << indent << "with computed target: ";
667	node->computedTarget->accept( *this );
668	os << endl;
669	}
670	--indent;
671
672	return node;
673	}
674
675	virtual const ast::Stmt * visit( const ast::ReturnStmt * node ) override final {
676	os << "Return Statement, returning";
677	if ( node->expr ) {
678	++indent;
679	os << ":" << endl << indent;
680	node->expr->accept( *this );
681	--indent;
682	} else {
683	os << " void";
684	}
685	os << endl;
686
687	return node;
688	}
689
690	virtual const ast::Stmt * visit( const ast::ThrowStmt * node ) override final {
691	if ( node->target ) os << "Non-Local ";
692
693	switch( node->kind ) {
694	case ast::ExceptionKind::Terminate: os << "Terminate "; break;
695	case ast::ExceptionKind::Resume: os << "Resume "; break;
696	}
697
698	++indent;
699	os << "Throw Statement, raising: ";
700	safe_print( node->expr );
701	if ( node->target ) {
702	os << "... at: ";
703	node->target->accept( *this );
704	}
705	--indent;
706
707	return node;
708	}
709
710	virtual const ast::Stmt * visit( const ast::TryStmt * node ) override final {
711	++indent;
712	os << "Try Statement" << endl << indent-1
713	<< "... with block:" << endl << indent;
714	safe_print( node->body );
715
716	os << indent-1 << "... and handlers:" << endl;
717	for ( const ast::CatchClause * stmt : node->handlers ) {
718	os << indent;
719	stmt->accept( *this );
720	}
721
722	if ( node->finally ) {
723	os << indent-1 << "... and finally:" << endl << indent;
724	node->finally->accept( *this );
725	}
726	--indent;
727
728	return node;
729	}
730
731	virtual const ast::CatchClause * visit( const ast::CatchClause * node ) override final {
732	os << "Catch ";
733	switch ( node->kind ) {
734	case ast::ExceptionKind::Terminate: os << "Terminate "; break;
735	case ast::ExceptionKind::Resume: os << "Resume "; break;
736	}
737	os << "Statement" << endl << indent;
738
739	++indent;
740	os << "... catching: ";
741	short_print( node->decl );
742	os << endl;
743
744	if ( node->cond ) {
745	os << indent-1 << "... with conditional:" << endl << indent;
746	node->cond->accept( *this );
747	}
748
749	os << indent-1 << "... with block:" << endl << indent;
750	safe_print( node->body );
751	--indent;
752
753	return node;
754	}
755
756	virtual const ast::FinallyClause * visit( const ast::FinallyClause * node ) override final {
757	os << "Finally Statement" << endl;
758	os << indent << "... with block:" << endl;
759	++indent;
760	os << indent;
761	safe_print( node->body );
762	--indent;
763
764	return node;
765	}
766
767	virtual const ast::Stmt * visit( const ast::SuspendStmt * node ) override final {
768	os << "Suspend Statement";
769	switch (node->kind) {
770	case ast::SuspendStmt::None : os << " with implicit target"; break;
771	case ast::SuspendStmt::Generator: os << " for generator"; break;
772	case ast::SuspendStmt::Coroutine: os << " for coroutine"; break;
773	}
774	os << endl;
775
776	++indent;
777	if(node->then) {
778	os << indent << " with post statement :" << endl;
779	safe_print( node->then );
780	}
781	++indent;
782
783	return node;
784	}
785
786	virtual const ast::WhenClause * visit( const ast::WhenClause * node ) override final {
787	os << indent-1 << "target: ";
788	safe_print( node->target );
789
790	if ( node->stmt ) {
791	os << indent-1 << "... with statment:" << endl;
792	node->stmt->accept( *this );
793	}
794
795	if ( node->when_cond ) {
796	os << indent-1 << "... with when condition:" << endl;
797	node->when_cond->accept( *this );
798	}
799
800	return node;
801	}
802
803	virtual const ast::Stmt * visit( const ast::WaitForStmt * node ) override final {
804	os << "Waitfor Statement" << endl;
805	indent += 2;
806	for( const auto & clause : node->clauses ) {
807	clause->accept( *this );
808	}
809
810	if ( node->timeout_time ) {
811	os << indent-1 << "timeout of:" << endl;
812	node->timeout_time->accept( *this );
813
814	if ( node->timeout_stmt ) {
815	os << indent-1 << "... with statment:" << endl;
816	node->timeout_stmt->accept( *this );
817	}
818
819	if ( node->timeout_cond ) {
820	os << indent-1 << "... with condition:" << endl;
821	node->timeout_cond->accept( *this );
822	}
823	}
824
825	if ( node->else_stmt ) {
826	os << indent-1 << "else:" << endl;
827	node->else_stmt->accept( *this );
828
829	if ( node->else_cond ) {
830	os << indent-1 << "... with condition:" << endl;
831	node->else_cond->accept( *this );
832	}
833	}
834
835	return node;
836	}
837
838	virtual const ast::WaitForClause * visit( const ast::WaitForClause * node ) override final {
839	os << indent-1 << "target function: ";
840	safe_print( node->target );
841
842	if ( !node->target_args.empty() ) {
843	os << endl << indent-1 << "... with arguments:" << endl;
844	for( const ast::Expr * arg : node->target_args ) {
845	arg->accept( *this );
846	}
847	}
848
849	if ( node->stmt ) {
850	os << indent-1 << "... with statment:" << endl;
851	node->stmt->accept( *this );
852	}
853
854	if ( node->when_cond ) {
855	os << indent-1 << "... with condition:" << endl;
856	node->when_cond->accept( *this );
857	}
858
859	return node;
860	}
861
862	virtual const ast::Stmt * visit( const ast::WaitUntilStmt * node ) override final {
863	os << "Waituntil Statement" << endl;
864	indent += 2;
865	for( const auto & clause : node->clauses ) {
866	clause->accept( *this );
867	}
868	// calls print( const ast::WaitStmt * node )
869	print(node);
870	return node;
871	}
872
873	virtual const ast::Decl * visit( const ast::WithStmt * node ) override final {
874	os << "With statement" << endl;
875	os << indent << "... with expressions:" << endl;
876	++indent;
877	printAll( node->exprs );
878	os << indent-1 << "... with statement:" << endl << indent;
879	safe_print( node->stmt );
880	--indent;
881
882	return node;
883	}
884
885	virtual const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
886	os << "Null Statement" << endl;
887	print( node->labels );
888
889	return node;
890	}
891
892	virtual const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
893	os << "Declaration of ";
894	safe_print( node->decl );
895
896	return node;
897	}
898
899	virtual const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
900	os << "Implicit Ctor Dtor Statement" << endl;
901	os << indent << "... with Ctor/Dtor: ";
902	++indent;
903	safe_print( node->callStmt );
904	--indent;
905	os << endl;
906
907	return node;
908	}
909
910	virtual const ast::Stmt * visit( const ast::MutexStmt * node ) override final {
911	os << "Mutex Statement" << endl;
912	os << indent << "... with Mutex Parameters: ";
913	++indent;
914	printAll( node->mutexObjs );
915	--indent;
916	os << indent << "... with Statement: ";
917	++indent;
918	safe_print( node->stmt );
919	--indent;
920	os << endl;
921
922	return node;
923	}
924
925	virtual const ast::Stmt * visit( const ast::CorunStmt * node ) override final {
926	os << "Corun Statement" << endl;
927	os << indent << "... with Statement: ";
928	++indent;
929	safe_print( node->stmt );
930	--indent;
931	os << endl;
932
933	return node;
934	}
935
936	virtual const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
937	++indent;
938	os << "Application of" << endl << indent;
939	safe_print( node->func );
940	os << endl;
941	if ( ! node->args.empty() ) {
942	os << indent << "... to arguments" << endl;
943	printAll( node->args );
944	}
945	--indent;
946	postprint( node );
947
948	return node;
949	}
950
951	virtual const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
952	++indent;
953	os << "Applying untyped:" << endl;
954	os << indent;
955	safe_print( node->func );
956	os << endl << indent-1 << "...to:" << endl;
957	printAll( node->args );
958	--indent;
959	postprint( node );
960
961	return node;
962	}
963
964	virtual const ast::Expr * visit( const ast::NameExpr * node ) override final {
965	os << "Name: " << node->name;
966	postprint( node );
967
968	return node;
969	}
970
971	virtual const ast::Expr * visit( const ast::QualifiedNameExpr * node ) override final {
972	os << "QualifiedNameExpr: " << std::endl;
973	os << ++indent << "Type: ";
974	safe_print( node->type_decl );
975	os << std::endl;
976	os << indent << "Name: " << node->name << std::endl;
977	--indent;
978	postprint( node );
979	return node;
980	}
981
982	virtual const ast::Expr * visit( const ast::AddressExpr * node ) override final {
983	os << "Address of:" << endl;
984	++indent;
985	os << indent;
986	safe_print( node->arg );
987
988	--indent;
989
990	return node;
991	}
992
993	virtual const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
994	os << "Address of label:" << node->arg;
995
996	return node;
997	}
998
999	virtual const ast::Expr * visit( const ast::CastExpr * node ) override final {
1000	++indent;
1001	os << (node->isGenerated ? "Generated" : "Explicit") << " Cast of:" << endl << indent;
1002	safe_print( node->arg );
1003	os << endl << indent-1 << "... to:";
1004	if ( ! node->result ) {
1005	os << " ";
1006	undefined();
1007	} else if ( node->result->isVoid() ) {
1008	os << " nothing";
1009	} else {
1010	os << endl << indent;
1011	node->result->accept( *this );
1012	} // if
1013	--indent;
1014	postprint( node );
1015
1016	return node;
1017	}
1018
1019	virtual const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
1020	++indent;
1021	os << "Keyword Cast of:" << endl << indent;
1022	safe_print( node->arg );
1023	--indent;
1024	os << endl << indent << "... to: " << node->targetString();
1025	postprint( node );
1026
1027	return node;
1028	}
1029
1030	virtual const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
1031	++indent;
1032	os << "Virtual Cast of:" << endl << indent;
1033	safe_print( node->arg );
1034	os << endl << indent-1 << "... to:";
1035	if ( ! node->result ) {
1036	os << " unknown";
1037	} else {
1038	os << endl << indent;
1039	node->result->accept( *this );
1040	}
1041	--indent;
1042	postprint( node );
1043
1044	return node;
1045	}
1046
1047	virtual const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
1048	++indent;
1049	os << "Untyped Member Expression, with field: " << endl << indent;
1050	safe_print( node->member );
1051	os << indent-1 << "... from aggregate:" << endl << indent;
1052	safe_print( node->aggregate );
1053	--indent;
1054	postprint( node );
1055
1056	return node;
1057	}
1058
1059	virtual const ast::Expr * visit( const ast::MemberExpr * node ) override final {
1060	++indent;
1061	os << "Member Expression, with field:" << endl << indent;
1062	safe_print( node->member );
1063	os << endl << indent-1 << "... from aggregate:" << endl << indent;
1064	safe_print( node->aggregate );
1065	--indent;
1066	postprint( node );
1067
1068	return node;
1069	}
1070
1071	virtual const ast::Expr * visit( const ast::VariableExpr * node ) override final {
1072	os << "Variable Expression: ";
1073	short_print( node->var );
1074	postprint( node );
1075
1076	return node;
1077	}
1078
1079	virtual const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
1080	os << "Constant Expression (" << node->rep;
1081	if ( node->result ) {
1082	os << ": ";
1083	node->result->accept( *this );
1084	}
1085	os << ")";
1086	postprint( node );
1087
1088	return node;
1089	}
1090
1091	virtual const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
1092	os << "Sizeof Expression on: ";
1093	++indent;
1094	if ( node->type ) node->type->accept( *this );
1095	else safe_print( node->expr );
1096	--indent;
1097	postprint( node );
1098
1099	return node;
1100	}
1101
1102	virtual const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
1103	os << "Alignof Expression on: ";
1104	++indent;
1105	if ( node->type ) node->type->accept( *this );
1106	else safe_print( node->expr );
1107	--indent;
1108	postprint( node );
1109
1110	return node;
1111	}
1112
1113	virtual const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
1114	os << "Untyped Offsetof Expression on member " << node->member << " of ";
1115	++indent;
1116	safe_print( node->type );
1117	--indent;
1118	postprint( node );
1119
1120	return node;
1121	}
1122
1123	virtual const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
1124	os << "Offsetof Expression on member " << node->member->name << " of ";
1125	++indent;
1126	safe_print( node->type );
1127	--indent;
1128	postprint( node );
1129
1130	return node;
1131	}
1132
1133	virtual const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
1134	os << "Offset Pack Expression on: ";
1135	++indent;
1136	safe_print( node->type );
1137	--indent;
1138	postprint( node );
1139
1140	return node;
1141	}
1142
1143	virtual const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
1144	os << "Short-circuited operation (" << (node->isAnd ? "and" : "or") << ") on: ";
1145	safe_print( node->arg1 );
1146	os << " and ";
1147	safe_print( node->arg2 );
1148	postprint( node );
1149
1150	return node;
1151	}
1152
1153	virtual const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
1154	++indent;
1155	os << "Conditional expression on:" << endl << indent;
1156	safe_print( node->arg1 );
1157	os << indent-1 << "First alternative:" << endl << indent;
1158	safe_print( node->arg2 );
1159	os << indent-1 << "Second alternative:" << endl << indent;
1160	safe_print( node->arg3 );
1161	--indent;
1162	postprint( node );
1163
1164	return node;
1165	}
1166
1167	virtual const ast::Expr * visit( const ast::CommaExpr * node ) override final {
1168	++indent;
1169	os << "Comma Expression:" << endl << indent;
1170	safe_print( node->arg1 );
1171	os << endl << indent;
1172	safe_print( node->arg2 );
1173	--indent;
1174	postprint( node );
1175
1176	return node;
1177	}
1178
1179	virtual const ast::Expr * visit( const ast::TypeExpr * node ) override final {
1180	safe_print( node->type );
1181	postprint( node );
1182
1183	return node;
1184	}
1185
1186	virtual const ast::Expr * visit( const ast::DimensionExpr * node ) override final {
1187	os << "Type-Sys Value: " << node->name;
1188	postprint( node );
1189
1190	return node;
1191	}
1192
1193	virtual const ast::Expr * visit( const ast::AsmExpr * node ) override final {
1194	os << "Asm Expression:" << endl;
1195	++indent;
1196	if ( !node->inout.empty() ) os << "[" << node->inout << "] ";
1197	if ( node->constraint ) node->constraint->accept( *this );
1198	if ( node->operand ) node->operand->accept( *this );
1199	--indent;
1200
1201	return node;
1202	}
1203
1204	virtual const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
1205	++indent;
1206	os << "Implicit Copy Constructor Expression:" << endl << indent;
1207	safe_print( node->callExpr );
1208	--indent;
1209	postprint( node );
1210
1211	return node;
1212	}
1213
1214	virtual const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
1215	os << "Constructor Expression:" << endl << indent+1;
1216	indent += 2;
1217	safe_print( node->callExpr );
1218	indent -= 2;
1219	postprint( node );
1220
1221	return node;
1222	}
1223
1224	virtual const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
1225	++indent;
1226	os << "Compound Literal Expression: " << endl << indent;
1227	safe_print( node->result );
1228	os << indent;
1229	safe_print( node->init );
1230	--indent;
1231	postprint( node );
1232
1233	return node;
1234	}
1235
1236	virtual const ast::Expr * visit( const ast::RangeExpr * node ) override final {
1237	os << "Range Expression: ";
1238	safe_print( node->low );
1239	os << " ... ";
1240	safe_print( node->high );
1241	postprint( node );
1242
1243	return node;
1244	}
1245
1246	virtual const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
1247	os << "Untyped Tuple:" << endl;
1248	++indent;
1249	printAll( node->exprs );
1250	--indent;
1251	postprint( node );
1252
1253	return node;
1254	}
1255
1256	virtual const ast::Expr * visit( const ast::TupleExpr * node ) override final {
1257	os << "Tuple:" << endl;
1258	++indent;
1259	printAll( node->exprs );
1260	--indent;
1261	postprint( node );
1262
1263	return node;
1264	}
1265
1266	virtual const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
1267	os << "Tuple Index Expression, with tuple:" << endl;
1268	++indent;
1269	os << indent;
1270	safe_print( node->tuple );
1271	os << indent << "with index: " << node->index << endl;
1272	--indent;
1273	postprint( node );
1274
1275	return node;
1276	}
1277
1278	virtual const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
1279	os << "Tuple Assignment Expression, with stmt expr:" << endl;
1280	++indent;
1281	os << indent;
1282	safe_print( node->stmtExpr );
1283	--indent;
1284	postprint( node );
1285
1286	return node;
1287	}
1288
1289	virtual const ast::Expr * visit( const ast::StmtExpr * node ) override final {
1290	++indent;
1291	os << "Statement Expression:" << endl << indent;
1292	safe_print( node->stmts );
1293	if ( ! node->returnDecls.empty() ) {
1294	os << indent << "... with returnDecls: ";
1295	printAll( node->returnDecls );
1296	}
1297	if ( ! node->dtors.empty() ) {
1298	os << indent << "... with dtors: ";
1299	printAll( node->dtors );
1300	}
1301	--indent;
1302	postprint( node );
1303
1304	return node;
1305	}
1306
1307	virtual const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
1308	++indent;
1309	os << "Unique Expression with id: " << node->id << endl << indent;
1310	safe_print( node->expr );
1311	if ( node->object ) {
1312	os << indent-1 << "... with decl: ";
1313	short_print( node->object );
1314	}
1315	--indent;
1316	postprint( node );
1317
1318	return node;
1319	}
1320
1321	virtual const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
1322	++indent;
1323	os << "Untyped Init Expression" << endl << indent;
1324	safe_print( node->expr );
1325	if ( ! node->initAlts.empty() ) {
1326	for ( const InitAlternative & alt : node->initAlts ) {
1327	os << indent << "InitAlternative: ";
1328	safe_print( alt.type );
1329	safe_print( alt.designation );
1330	}
1331	}
1332	--indent;
1333
1334	return node;
1335	}
1336
1337	virtual const ast::Expr * visit( const ast::InitExpr * node ) override final {
1338	++indent;
1339	os << "Init Expression" << endl << indent;
1340	safe_print( node->expr );
1341	os << indent << "... with designation: ";
1342	safe_print( node->designation );
1343	--indent;
1344
1345	return node;
1346	}
1347
1348	virtual const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
1349	++indent;
1350	os << "Deleted Expression" << endl << indent;
1351	safe_print( node->expr );
1352	os << endl << indent << "... deleted by: ";
1353	safe_print( node->deleteStmt );
1354	--indent;
1355
1356	return node;
1357	}
1358
1359	virtual const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
1360	++indent;
1361	os << "Default Argument Expression" << endl << indent;
1362	safe_print( node->expr );
1363	--indent;
1364
1365	return node;
1366	}
1367
1368	virtual const ast::Expr * visit( const ast::GenericExpr * node ) override final {
1369	++indent;
1370	os << "C11 _Generic Expression" << endl << indent;
1371	safe_print( node->control );
1372	os << endl << indent << "... with associations:" << endl;
1373	for ( const auto & assoc : node->associations ) {
1374	os << indent;
1375	if ( assoc.type ) {
1376	os << "... type: ";
1377	assoc.type->accept( *this );
1378	os << endl << indent << "... expression: ";
1379	safe_print( assoc.expr );
1380	} else {
1381	os << "... default: ";
1382	safe_print( assoc.expr );
1383	}
1384	os << endl;
1385	}
1386	--indent;
1387
1388	return node;
1389	}
1390
1391	virtual const ast::Type * visit( const ast::VoidType * node ) override final {
1392	preprint( node );
1393	os << "void";
1394	return node;
1395	}
1396
1397	virtual const ast::Type * visit( const ast::BasicType * node ) override final {
1398	preprint( node );
1399	os << ast::BasicType::typeNames[ node->kind ];
1400	return node;
1401	}
1402
1403	virtual const ast::Type * visit( const ast::PointerType * node ) override final {
1404	preprint( node );
1405	if ( ! node->isArray() ) {
1406	os << "pointer to ";
1407	} else {
1408	os << "decayed ";
1409	if ( node->isStatic ) {
1410	os << "static ";
1411	}
1412
1413	if ( node->isVarLen ) {
1414	os << "variable length array of ";
1415	} else if ( node->dimension ) {
1416	os << "array of ";
1417	node->dimension->accept( *this );
1418	os << " ";
1419	}
1420	}
1421	safe_print( node->base );
1422
1423	return node;
1424	}
1425
1426	virtual const ast::Type * visit( const ast::ArrayType * node ) override final {
1427	preprint( node );
1428	if ( node->isStatic ) {
1429	os << "static ";
1430	}
1431
1432	if ( node->isVarLen ) {
1433	os << "variable length array of ";
1434	} else if ( node->dimension ) {
1435	os << "array of ";
1436	} else {
1437	os << "open array of ";
1438	}
1439
1440	safe_print( node->base );
1441
1442	if ( node->dimension ) {
1443	os << " with dimension of ";
1444	node->dimension->accept( *this );
1445	}
1446
1447	return node;
1448	}
1449
1450	virtual const ast::Type * visit( const ast::ReferenceType * node ) override final {
1451	preprint( node );
1452	os << "reference to ";
1453	safe_print( node->base );
1454
1455	return node;
1456	}
1457
1458	virtual const ast::Type * visit( const ast::QualifiedType * node ) override final {
1459	preprint( node );
1460	++indent;
1461	os << "Qualified Type:" << endl << indent;
1462	safe_print( node->parent );
1463	os << endl << indent;
1464	safe_print( node->child );
1465	os << endl;
1466	--indent;
1467
1468	return node;
1469	}
1470
1471	virtual const ast::Type * visit( const ast::FunctionType * node ) override final {
1472	preprint( node );
1473
1474	os << "function" << endl;
1475	if ( ! node->params.empty() ) {
1476	os << indent << "... with parameters" << endl;
1477	++indent;
1478	printAll( node->params );
1479	if ( node->isVarArgs ) {
1480	os << indent << "and a variable number of other arguments" << endl;
1481	}
1482	--indent;
1483	} else if ( node->isVarArgs ) {
1484	os << indent+1 << "accepting unspecified arguments" << endl;
1485	}
1486
1487	os << indent << "... returning";
1488	if ( node->returns.empty() ) {
1489	os << " nothing" << endl;
1490	} else {
1491	os << endl;
1492	++indent;
1493	printAll( node->returns );
1494	--indent;
1495	}
1496
1497	return node;
1498	}
1499
1500	virtual const ast::Type * visit( const ast::StructInstType * node ) override final {
1501	preprint( node );
1502	os << "instance of struct " << node->name;
1503	if ( node->base ) {
1504	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1505	}
1506	print( node->params );
1507
1508	return node;
1509	}
1510
1511	virtual const ast::Type * visit( const ast::UnionInstType * node ) override final {
1512	preprint( node );
1513	os << "instance of union " << node->name;
1514	if ( node->base ) {
1515	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1516	}
1517	print( node->params );
1518
1519	return node;
1520	}
1521
1522	virtual const ast::Type * visit( const ast::EnumInstType * node ) override final {
1523	preprint( node );
1524	os << "instance of enum " << node->name;
1525	if ( node->base ) {
1526	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1527	}
1528	print( node->params );
1529
1530	return node;
1531	}
1532
1533	virtual const ast::Type * visit( const ast::TraitInstType * node ) override final {
1534	preprint( node );
1535	os << "instance of trait " << node->name;
1536	print( node->params );
1537
1538	return node;
1539	}
1540
1541	virtual const ast::Type * visit( const ast::TypeInstType * node ) override final {
1542	preprint( node );
1543	const auto & _name = deterministic_output && isUnboundType(node) ? "[unbound]" : node->typeString();
1544	os << "instance of type " << _name
1545	<< " (" << (node->kind == ast::TypeDecl::Ftype ? "" : "not ") << "function type)";
1546	print( node->params );
1547
1548	return node;
1549	}
1550
1551	virtual const ast::Type * visit( const ast::TupleType * node ) override final {
1552	preprint( node );
1553	os << "tuple of types" << endl;
1554	++indent;
1555	printAll( node->types );
1556	--indent;
1557
1558	return node;
1559	}
1560
1561	virtual const ast::Type * visit( const ast::TypeofType * node ) override final {
1562	preprint( node );
1563	if ( node->kind == ast::TypeofType::Basetypeof ) { os << "base-"; }
1564	os << "type-of expression ";
1565	safe_print( node->expr );
1566
1567	return node;
1568	}
1569
1570	virtual const ast::Type * visit( const ast::VTableType * node ) override final {
1571	preprint( node );
1572	os << "vtable for ";
1573	safe_print( node->base );
1574
1575	return node;
1576	}
1577
1578	virtual const ast::Type * visit( const ast::VarArgsType * node ) override final {
1579	preprint( node );
1580	os << "builtin var args pack";
1581	return node;
1582	}
1583
1584	virtual const ast::Type * visit( const ast::ZeroType * node ) override final {
1585	preprint( node );
1586	os << "zero_t";
1587	return node;
1588	}
1589
1590	virtual const ast::Type * visit( const ast::OneType * node ) override final {
1591	preprint( node );
1592	os << "one_t";
1593	return node;
1594	}
1595
1596	virtual const ast::Type * visit( const ast::GlobalScopeType * node ) override final {
1597	preprint( node );
1598	os << "Global Scope Type";
1599	return node;
1600	}
1601
1602	virtual const ast::Designation * visit( const ast::Designation * node ) override final {
1603	if ( node->designators.empty() ) return node;
1604	os << "... designated by: " << endl;
1605	++indent;
1606	for ( const ast::Expr * d : node->designators ) {
1607	os << indent;
1608	d->accept( *this );
1609	os << endl;
1610	}
1611	--indent;
1612	return node;
1613	}
1614
1615	virtual const ast::Init * visit( const ast::SingleInit * node ) override final {
1616	os << "Simple Initializer: ";
1617	safe_print( node->value );
1618	return node;
1619	}
1620
1621	virtual const ast::Init * visit( const ast::ListInit * node ) override final {
1622	os << "Compound initializer: " << endl;
1623	++indent;
1624	for ( auto p : group_iterate( node->designations, node->initializers ) ) {
1625	const ast::Designation * d = std::get<0>(p);
1626	const ast::Init * init = std::get<1>(p);
1627	os << indent;
1628	init->accept( *this );
1629	os << endl;
1630	if ( ! d->designators.empty() ) {
1631	os << indent;
1632	d->accept( *this );
1633	}
1634	}
1635	--indent;
1636	return node;
1637	}
1638
1639	virtual const ast::Init * visit( const ast::ConstructorInit * node ) override final {
1640	os << "Constructor initializer: " << endl;
1641	if ( node->ctor ) {
1642	os << indent << "... initially constructed with ";
1643	++indent;
1644	node->ctor->accept( *this );
1645	--indent;
1646	}
1647
1648	if ( node->dtor ) {
1649	os << indent << "... destructed with ";
1650	++indent;
1651	node->dtor->accept( *this );
1652	--indent;
1653	}
1654
1655	if ( node->init ) {
1656	os << indent << "... with fallback C-style initializer: ";
1657	++indent;
1658	node->init->accept( *this );
1659	--indent;
1660	}
1661	return node;
1662	}
1663
1664	virtual const ast::Attribute * visit( const ast::Attribute * node ) override final {
1665	if ( node->empty() ) return node;
1666	os << "Attribute with name: " << node->name;
1667	if ( node->params.empty() ) return node;
1668	os << " with parameters: " << endl;
1669	++indent;
1670	printAll( node->params );
1671	--indent;
1672	return node;
1673	}
1674
1675	virtual const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
1676	os << indent << "Types:" << endl;
1677	for ( const auto& i : *node ) {
1678	os << indent+1 << i.first.typeString() << " -> ";
1679	indent += 2;
1680	safe_print( i.second );
1681	indent -= 2;
1682	os << endl;
1683	}
1684	return node;
1685	}
1686
1687	};
1688
1689	} // namespace
1690
1691	void print( ostream & os, const ast::Node * node, Indenter indent ) {
1692	Printer printer { os, indent, false };
1693	node->accept(printer);
1694	}
1695
1696	void printShort( ostream & os, const ast::Decl * node, Indenter indent ) {
1697	Printer printer { os, indent, true };
1698	node->accept(printer);
1699	}
1700
1701	void print( ostream & os, Function::Specs specs ) {
1702	print( os, specs, Names::FuncSpecifiers );
1703	}
1704
1705	void print( ostream & os, Storage::Classes storage ) {
1706	print( os, storage, Names::StorageClasses );
1707	}
1708
1709	void print( ostream & os, CV::Qualifiers qualifiers ) {
1710	print( os, qualifiers, Names::Qualifiers );
1711	}
1712
1713	} // namespace ast

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