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source: src/AST/Print.cpp @ c7616dd

Last change on this file since c7616dd was bccd70a, checked in by Andrew Beach <ajbeach@…>, 18 months ago
Removed internal code from TypeSubstitution? header. It caused a chain of include problems, which have been corrected.
Property mode set to `100644`
File size: 40.2 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	print(node); // calls print( const ast::WaitStmt * node )
869	return node;
870	}
871
872	virtual const ast::Decl * visit( const ast::WithStmt * node ) override final {
873	os << "With statement" << endl;
874	os << indent << "... with expressions:" << endl;
875	++indent;
876	printAll( node->exprs );
877	os << indent-1 << "... with statement:" << endl << indent;
878	safe_print( node->stmt );
879	--indent;
880
881	return node;
882	}
883
884	virtual const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
885	os << "Null Statement" << endl;
886	print( node->labels );
887
888	return node;
889	}
890
891	virtual const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
892	os << "Declaration of ";
893	safe_print( node->decl );
894
895	return node;
896	}
897
898	virtual const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
899	os << "Implicit Ctor Dtor Statement" << endl;
900	os << indent << "... with Ctor/Dtor: ";
901	++indent;
902	safe_print( node->callStmt );
903	--indent;
904	os << endl;
905
906	return node;
907	}
908
909	virtual const ast::Stmt * visit( const ast::MutexStmt * node ) override final {
910	os << "Mutex Statement" << endl;
911	os << indent << "... with Mutex Parameters: ";
912	++indent;
913	printAll( node->mutexObjs );
914	--indent;
915	os << indent << "... with Statement: ";
916	++indent;
917	safe_print( node->stmt );
918	--indent;
919	os << endl;
920
921	return node;
922	}
923
924	virtual const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
925	++indent;
926	os << "Application of" << endl << indent;
927	safe_print( node->func );
928	os << endl;
929	if ( ! node->args.empty() ) {
930	os << indent << "... to arguments" << endl;
931	printAll( node->args );
932	}
933	--indent;
934	postprint( node );
935
936	return node;
937	}
938
939	virtual const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
940	++indent;
941	os << "Applying untyped:" << endl;
942	os << indent;
943	safe_print( node->func );
944	os << endl << indent-1 << "...to:" << endl;
945	printAll( node->args );
946	--indent;
947	postprint( node );
948
949	return node;
950	}
951
952	virtual const ast::Expr * visit( const ast::NameExpr * node ) override final {
953	os << "Name: " << node->name;
954	postprint( node );
955
956	return node;
957	}
958
959	virtual const ast::Expr * visit( const ast::QualifiedNameExpr * node ) override final {
960	os << "QualifiedNameExpr: " << std::endl;
961	os << ++indent << "Type: ";
962	safe_print( node->type_decl );
963	os << std::endl;
964	os << indent << "Name: " << node->name << std::endl;
965	--indent;
966	postprint( node );
967	return node;
968	}
969
970	virtual const ast::Expr * visit( const ast::AddressExpr * node ) override final {
971	os << "Address of:" << endl;
972	++indent;
973	os << indent;
974	safe_print( node->arg );
975
976	--indent;
977
978	return node;
979	}
980
981	virtual const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
982	os << "Address of label:" << node->arg;
983
984	return node;
985	}
986
987	virtual const ast::Expr * visit( const ast::CastExpr * node ) override final {
988	++indent;
989	os << (node->isGenerated ? "Generated" : "Explicit") << " Cast of:" << endl << indent;
990	safe_print( node->arg );
991	os << endl << indent-1 << "... to:";
992	if ( ! node->result ) {
993	os << " ";
994	undefined();
995	} else if ( node->result->isVoid() ) {
996	os << " nothing";
997	} else {
998	os << endl << indent;
999	node->result->accept( *this );
1000	} // if
1001	--indent;
1002	postprint( node );
1003
1004	return node;
1005	}
1006
1007	virtual const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
1008	++indent;
1009	os << "Keyword Cast of:" << endl << indent;
1010	safe_print( node->arg );
1011	--indent;
1012	os << endl << indent << "... to: " << node->targetString();
1013	postprint( node );
1014
1015	return node;
1016	}
1017
1018	virtual const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
1019	++indent;
1020	os << "Virtual Cast of:" << endl << indent;
1021	safe_print( node->arg );
1022	os << endl << indent-1 << "... to:";
1023	if ( ! node->result ) {
1024	os << " unknown";
1025	} else {
1026	os << endl << indent;
1027	node->result->accept( *this );
1028	}
1029	--indent;
1030	postprint( node );
1031
1032	return node;
1033	}
1034
1035	virtual const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
1036	++indent;
1037	os << "Untyped Member Expression, with field: " << endl << indent;
1038	safe_print( node->member );
1039	os << indent-1 << "... from aggregate:" << endl << indent;
1040	safe_print( node->aggregate );
1041	--indent;
1042	postprint( node );
1043
1044	return node;
1045	}
1046
1047	virtual const ast::Expr * visit( const ast::MemberExpr * node ) override final {
1048	++indent;
1049	os << "Member Expression, with field:" << endl << indent;
1050	safe_print( node->member );
1051	os << endl << 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::VariableExpr * node ) override final {
1060	os << "Variable Expression: ";
1061	short_print( node->var );
1062	postprint( node );
1063
1064	return node;
1065	}
1066
1067	virtual const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
1068	os << "Constant Expression (" << node->rep;
1069	if ( node->result ) {
1070	os << ": ";
1071	node->result->accept( *this );
1072	}
1073	os << ")";
1074	postprint( node );
1075
1076	return node;
1077	}
1078
1079	virtual const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
1080	os << "Sizeof Expression on: ";
1081	++indent;
1082	if ( node->type ) node->type->accept( *this );
1083	else safe_print( node->expr );
1084	--indent;
1085	postprint( node );
1086
1087	return node;
1088	}
1089
1090	virtual const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
1091	os << "Alignof Expression on: ";
1092	++indent;
1093	if ( node->type ) node->type->accept( *this );
1094	else safe_print( node->expr );
1095	--indent;
1096	postprint( node );
1097
1098	return node;
1099	}
1100
1101	virtual const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
1102	os << "Untyped Offsetof Expression on member " << node->member << " of ";
1103	++indent;
1104	safe_print( node->type );
1105	--indent;
1106	postprint( node );
1107
1108	return node;
1109	}
1110
1111	virtual const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
1112	os << "Offsetof Expression on member " << node->member->name << " of ";
1113	++indent;
1114	safe_print( node->type );
1115	--indent;
1116	postprint( node );
1117
1118	return node;
1119	}
1120
1121	virtual const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
1122	os << "Offset Pack Expression on: ";
1123	++indent;
1124	safe_print( node->type );
1125	--indent;
1126	postprint( node );
1127
1128	return node;
1129	}
1130
1131	virtual const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
1132	os << "Short-circuited operation (" << (node->isAnd ? "and" : "or") << ") on: ";
1133	safe_print( node->arg1 );
1134	os << " and ";
1135	safe_print( node->arg2 );
1136	postprint( node );
1137
1138	return node;
1139	}
1140
1141	virtual const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
1142	++indent;
1143	os << "Conditional expression on:" << endl << indent;
1144	safe_print( node->arg1 );
1145	os << indent-1 << "First alternative:" << endl << indent;
1146	safe_print( node->arg2 );
1147	os << indent-1 << "Second alternative:" << endl << indent;
1148	safe_print( node->arg3 );
1149	--indent;
1150	postprint( node );
1151
1152	return node;
1153	}
1154
1155	virtual const ast::Expr * visit( const ast::CommaExpr * node ) override final {
1156	++indent;
1157	os << "Comma Expression:" << endl << indent;
1158	safe_print( node->arg1 );
1159	os << endl << indent;
1160	safe_print( node->arg2 );
1161	--indent;
1162	postprint( node );
1163
1164	return node;
1165	}
1166
1167	virtual const ast::Expr * visit( const ast::TypeExpr * node ) override final {
1168	safe_print( node->type );
1169	postprint( node );
1170
1171	return node;
1172	}
1173
1174	virtual const ast::Expr * visit( const ast::DimensionExpr * node ) override final {
1175	os << "Type-Sys Value: " << node->name;
1176	postprint( node );
1177
1178	return node;
1179	}
1180
1181	virtual const ast::Expr * visit( const ast::AsmExpr * node ) override final {
1182	os << "Asm Expression:" << endl;
1183	++indent;
1184	if ( !node->inout.empty() ) os << "[" << node->inout << "] ";
1185	if ( node->constraint ) node->constraint->accept( *this );
1186	if ( node->operand ) node->operand->accept( *this );
1187	--indent;
1188
1189	return node;
1190	}
1191
1192	virtual const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
1193	++indent;
1194	os << "Implicit Copy Constructor Expression:" << endl << indent;
1195	safe_print( node->callExpr );
1196	--indent;
1197	postprint( node );
1198
1199	return node;
1200	}
1201
1202	virtual const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
1203	os << "Constructor Expression:" << endl << indent+1;
1204	indent += 2;
1205	safe_print( node->callExpr );
1206	indent -= 2;
1207	postprint( node );
1208
1209	return node;
1210	}
1211
1212	virtual const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
1213	++indent;
1214	os << "Compound Literal Expression: " << endl << indent;
1215	safe_print( node->result );
1216	os << indent;
1217	safe_print( node->init );
1218	--indent;
1219	postprint( node );
1220
1221	return node;
1222	}
1223
1224	virtual const ast::Expr * visit( const ast::RangeExpr * node ) override final {
1225	os << "Range Expression: ";
1226	safe_print( node->low );
1227	os << " ... ";
1228	safe_print( node->high );
1229	postprint( node );
1230
1231	return node;
1232	}
1233
1234	virtual const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
1235	os << "Untyped Tuple:" << endl;
1236	++indent;
1237	printAll( node->exprs );
1238	--indent;
1239	postprint( node );
1240
1241	return node;
1242	}
1243
1244	virtual const ast::Expr * visit( const ast::TupleExpr * node ) override final {
1245	os << "Tuple:" << endl;
1246	++indent;
1247	printAll( node->exprs );
1248	--indent;
1249	postprint( node );
1250
1251	return node;
1252	}
1253
1254	virtual const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
1255	os << "Tuple Index Expression, with tuple:" << endl;
1256	++indent;
1257	os << indent;
1258	safe_print( node->tuple );
1259	os << indent << "with index: " << node->index << endl;
1260	--indent;
1261	postprint( node );
1262
1263	return node;
1264	}
1265
1266	virtual const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
1267	os << "Tuple Assignment Expression, with stmt expr:" << endl;
1268	++indent;
1269	os << indent;
1270	safe_print( node->stmtExpr );
1271	--indent;
1272	postprint( node );
1273
1274	return node;
1275	}
1276
1277	virtual const ast::Expr * visit( const ast::StmtExpr * node ) override final {
1278	++indent;
1279	os << "Statement Expression:" << endl << indent;
1280	safe_print( node->stmts );
1281	if ( ! node->returnDecls.empty() ) {
1282	os << indent << "... with returnDecls: ";
1283	printAll( node->returnDecls );
1284	}
1285	if ( ! node->dtors.empty() ) {
1286	os << indent << "... with dtors: ";
1287	printAll( node->dtors );
1288	}
1289	--indent;
1290	postprint( node );
1291
1292	return node;
1293	}
1294
1295	virtual const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
1296	++indent;
1297	os << "Unique Expression with id: " << node->id << endl << indent;
1298	safe_print( node->expr );
1299	if ( node->object ) {
1300	os << indent-1 << "... with decl: ";
1301	short_print( node->object );
1302	}
1303	--indent;
1304	postprint( node );
1305
1306	return node;
1307	}
1308
1309	virtual const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
1310	++indent;
1311	os << "Untyped Init Expression" << endl << indent;
1312	safe_print( node->expr );
1313	if ( ! node->initAlts.empty() ) {
1314	for ( const InitAlternative & alt : node->initAlts ) {
1315	os << indent << "InitAlternative: ";
1316	safe_print( alt.type );
1317	safe_print( alt.designation );
1318	}
1319	}
1320	--indent;
1321
1322	return node;
1323	}
1324
1325	virtual const ast::Expr * visit( const ast::InitExpr * node ) override final {
1326	++indent;
1327	os << "Init Expression" << endl << indent;
1328	safe_print( node->expr );
1329	os << indent << "... with designation: ";
1330	safe_print( node->designation );
1331	--indent;
1332
1333	return node;
1334	}
1335
1336	virtual const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
1337	++indent;
1338	os << "Deleted Expression" << endl << indent;
1339	safe_print( node->expr );
1340	os << endl << indent << "... deleted by: ";
1341	safe_print( node->deleteStmt );
1342	--indent;
1343
1344	return node;
1345	}
1346
1347	virtual const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
1348	++indent;
1349	os << "Default Argument Expression" << endl << indent;
1350	safe_print( node->expr );
1351	--indent;
1352
1353	return node;
1354	}
1355
1356	virtual const ast::Expr * visit( const ast::GenericExpr * node ) override final {
1357	++indent;
1358	os << "C11 _Generic Expression" << endl << indent;
1359	safe_print( node->control );
1360	os << endl << indent << "... with associations:" << endl;
1361	for ( const auto & assoc : node->associations ) {
1362	os << indent;
1363	if ( assoc.type ) {
1364	os << "... type: ";
1365	assoc.type->accept( *this );
1366	os << endl << indent << "... expression: ";
1367	safe_print( assoc.expr );
1368	} else {
1369	os << "... default: ";
1370	safe_print( assoc.expr );
1371	}
1372	os << endl;
1373	}
1374	--indent;
1375
1376	return node;
1377	}
1378
1379	virtual const ast::Type * visit( const ast::VoidType * node ) override final {
1380	preprint( node );
1381	os << "void";
1382	return node;
1383	}
1384
1385	virtual const ast::Type * visit( const ast::BasicType * node ) override final {
1386	preprint( node );
1387	os << ast::BasicType::typeNames[ node->kind ];
1388	return node;
1389	}
1390
1391	virtual const ast::Type * visit( const ast::PointerType * node ) override final {
1392	preprint( node );
1393	if ( ! node->isArray() ) {
1394	os << "pointer to ";
1395	} else {
1396	os << "decayed ";
1397	if ( node->isStatic ) {
1398	os << "static ";
1399	}
1400
1401	if ( node->isVarLen ) {
1402	os << "variable length array of ";
1403	} else if ( node->dimension ) {
1404	os << "array of ";
1405	node->dimension->accept( *this );
1406	os << " ";
1407	}
1408	}
1409	safe_print( node->base );
1410
1411	return node;
1412	}
1413
1414	virtual const ast::Type * visit( const ast::ArrayType * node ) override final {
1415	preprint( node );
1416	if ( node->isStatic ) {
1417	os << "static ";
1418	}
1419
1420	if ( node->isVarLen ) {
1421	os << "variable length array of ";
1422	} else if ( node->dimension ) {
1423	os << "array of ";
1424	} else {
1425	os << "open array of ";
1426	}
1427
1428	safe_print( node->base );
1429
1430	if ( node->dimension ) {
1431	os << " with dimension of ";
1432	node->dimension->accept( *this );
1433	}
1434
1435	return node;
1436	}
1437
1438	virtual const ast::Type * visit( const ast::ReferenceType * node ) override final {
1439	preprint( node );
1440	os << "reference to ";
1441	safe_print( node->base );
1442
1443	return node;
1444	}
1445
1446	virtual const ast::Type * visit( const ast::QualifiedType * node ) override final {
1447	preprint( node );
1448	++indent;
1449	os << "Qualified Type:" << endl << indent;
1450	safe_print( node->parent );
1451	os << endl << indent;
1452	safe_print( node->child );
1453	os << endl;
1454	--indent;
1455
1456	return node;
1457	}
1458
1459	virtual const ast::Type * visit( const ast::FunctionType * node ) override final {
1460	preprint( node );
1461
1462	os << "function" << endl;
1463	if ( ! node->params.empty() ) {
1464	os << indent << "... with parameters" << endl;
1465	++indent;
1466	printAll( node->params );
1467	if ( node->isVarArgs ) {
1468	os << indent << "and a variable number of other arguments" << endl;
1469	}
1470	--indent;
1471	} else if ( node->isVarArgs ) {
1472	os << indent+1 << "accepting unspecified arguments" << endl;
1473	}
1474
1475	os << indent << "... returning";
1476	if ( node->returns.empty() ) {
1477	os << " nothing" << endl;
1478	} else {
1479	os << endl;
1480	++indent;
1481	printAll( node->returns );
1482	--indent;
1483	}
1484
1485	return node;
1486	}
1487
1488	virtual const ast::Type * visit( const ast::StructInstType * node ) override final {
1489	preprint( node );
1490	os << "instance of struct " << node->name;
1491	if ( node->base ) {
1492	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1493	}
1494	print( node->params );
1495
1496	return node;
1497	}
1498
1499	virtual const ast::Type * visit( const ast::UnionInstType * node ) override final {
1500	preprint( node );
1501	os << "instance of union " << node->name;
1502	if ( node->base ) {
1503	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1504	}
1505	print( node->params );
1506
1507	return node;
1508	}
1509
1510	virtual const ast::Type * visit( const ast::EnumInstType * node ) override final {
1511	preprint( node );
1512	os << "instance of enum " << node->name;
1513	if ( node->base ) {
1514	os << " " << ( node->base->body ? "with" : "without" ) << " body";
1515	}
1516	print( node->params );
1517
1518	return node;
1519	}
1520
1521	virtual const ast::Type * visit( const ast::TraitInstType * node ) override final {
1522	preprint( node );
1523	os << "instance of trait " << node->name;
1524	print( node->params );
1525
1526	return node;
1527	}
1528
1529	virtual const ast::Type * visit( const ast::TypeInstType * node ) override final {
1530	preprint( node );
1531	const auto & _name = deterministic_output && isUnboundType(node) ? "[unbound]" : node->typeString();
1532	os << "instance of type " << _name
1533	<< " (" << (node->kind == ast::TypeDecl::Ftype ? "" : "not ") << "function type)";
1534	print( node->params );
1535
1536	return node;
1537	}
1538
1539	virtual const ast::Type * visit( const ast::TupleType * node ) override final {
1540	preprint( node );
1541	os << "tuple of types" << endl;
1542	++indent;
1543	printAll( node->types );
1544	--indent;
1545
1546	return node;
1547	}
1548
1549	virtual const ast::Type * visit( const ast::TypeofType * node ) override final {
1550	preprint( node );
1551	if ( node->kind == ast::TypeofType::Basetypeof ) { os << "base-"; }
1552	os << "type-of expression ";
1553	safe_print( node->expr );
1554
1555	return node;
1556	}
1557
1558	virtual const ast::Type * visit( const ast::VTableType * node ) override final {
1559	preprint( node );
1560	os << "vtable for ";
1561	safe_print( node->base );
1562
1563	return node;
1564	}
1565
1566	virtual const ast::Type * visit( const ast::VarArgsType * node ) override final {
1567	preprint( node );
1568	os << "builtin var args pack";
1569	return node;
1570	}
1571
1572	virtual const ast::Type * visit( const ast::ZeroType * node ) override final {
1573	preprint( node );
1574	os << "zero_t";
1575	return node;
1576	}
1577
1578	virtual const ast::Type * visit( const ast::OneType * node ) override final {
1579	preprint( node );
1580	os << "one_t";
1581	return node;
1582	}
1583
1584	virtual const ast::Type * visit( const ast::GlobalScopeType * node ) override final {
1585	preprint( node );
1586	os << "Global Scope Type";
1587	return node;
1588	}
1589
1590	virtual const ast::Designation * visit( const ast::Designation * node ) override final {
1591	if ( node->designators.empty() ) return node;
1592	os << "... designated by: " << endl;
1593	++indent;
1594	for ( const ast::Expr * d : node->designators ) {
1595	os << indent;
1596	d->accept( *this );
1597	os << endl;
1598	}
1599	--indent;
1600	return node;
1601	}
1602
1603	virtual const ast::Init * visit( const ast::SingleInit * node ) override final {
1604	os << "Simple Initializer: ";
1605	safe_print( node->value );
1606	return node;
1607	}
1608
1609	virtual const ast::Init * visit( const ast::ListInit * node ) override final {
1610	os << "Compound initializer: " << endl;
1611	++indent;
1612	for ( auto p : group_iterate( node->designations, node->initializers ) ) {
1613	const ast::Designation * d = std::get<0>(p);
1614	const ast::Init * init = std::get<1>(p);
1615	os << indent;
1616	init->accept( *this );
1617	os << endl;
1618	if ( ! d->designators.empty() ) {
1619	os << indent;
1620	d->accept( *this );
1621	}
1622	}
1623	--indent;
1624	return node;
1625	}
1626
1627	virtual const ast::Init * visit( const ast::ConstructorInit * node ) override final {
1628	os << "Constructor initializer: " << endl;
1629	if ( node->ctor ) {
1630	os << indent << "... initially constructed with ";
1631	++indent;
1632	node->ctor->accept( *this );
1633	--indent;
1634	}
1635
1636	if ( node->dtor ) {
1637	os << indent << "... destructed with ";
1638	++indent;
1639	node->dtor->accept( *this );
1640	--indent;
1641	}
1642
1643	if ( node->init ) {
1644	os << indent << "... with fallback C-style initializer: ";
1645	++indent;
1646	node->init->accept( *this );
1647	--indent;
1648	}
1649	return node;
1650	}
1651
1652	virtual const ast::Attribute * visit( const ast::Attribute * node ) override final {
1653	if ( node->empty() ) return node;
1654	os << "Attribute with name: " << node->name;
1655	if ( node->params.empty() ) return node;
1656	os << " with parameters: " << endl;
1657	++indent;
1658	printAll( node->params );
1659	--indent;
1660	return node;
1661	}
1662
1663	virtual const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
1664	os << indent << "Types:" << endl;
1665	for ( const auto& i : *node ) {
1666	os << indent+1 << i.first.typeString() << " -> ";
1667	indent += 2;
1668	safe_print( i.second );
1669	indent -= 2;
1670	os << endl;
1671	}
1672	return node;
1673	}
1674
1675	};
1676
1677	} // namespace
1678
1679	void print( ostream & os, const ast::Node * node, Indenter indent ) {
1680	Printer printer { os, indent, false };
1681	node->accept(printer);
1682	}
1683
1684	void printShort( ostream & os, const ast::Decl * node, Indenter indent ) {
1685	Printer printer { os, indent, true };
1686	node->accept(printer);
1687	}
1688
1689	void print( ostream & os, Function::Specs specs ) {
1690	print( os, specs, Names::FuncSpecifiers );
1691	}
1692
1693	void print( ostream & os, Storage::Classes storage ) {
1694	print( os, storage, Names::StorageClasses );
1695	}
1696
1697	void print( ostream & os, CV::Qualifiers qualifiers ) {
1698	print( os, qualifiers, Names::Qualifiers );
1699	}
1700
1701	} // namespace ast

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