source: src/AST/Print.cpp@ 9e23b446

ADT ast-experimental pthread-emulation qualifiedEnum
Last change on this file since 9e23b446 was f6e6a55, checked in by Andrew Beach <ajbeach@…>, 3 years ago

Added ast::WaitForClause and changed ast::WaitForStmt to use it. This simplified a lot of the internal code.
  • Property mode set to 100644
File size: 38.4 KB
Line 
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 "Decl.hpp"
19#include "Expr.hpp"
20#include "Stmt.hpp"
21#include "Type.hpp"
22#include "TypeSubstitution.hpp"
23#include "CompilationState.h"
24
25#include "Common/utility.h" // for group_iterate
26
27using namespace std;
28
29namespace ast {
30
31template <typename C, typename... T>
32constexpr array<C,sizeof...(T)> make_array(T&&... values)
33{
34 return array<C,sizeof...(T)>{
35 forward<T>(values)...
36 };
37}
38
39class Printer final : public Visitor {
40public:
41 ostream & os;
42 Indenter indent;
43 bool short_mode;
44
45 Printer(ostream & os, Indenter indent, bool short_mode) : os( os ), indent( indent ), short_mode(short_mode) {}
46
47private:
48 template< typename C >
49 void printAll( const C & c ) {
50 for ( const auto & i : c ) {
51 if ( i ) {
52 os << indent;
53 i->accept( *this );
54 // need an endl after each element because it's not
55 // easy to know when each individual item should end
56 os << endl;
57 } // if
58 } // for
59 }
60
61 /// call if mandatory field is missing
62 void undefined() {
63 os << "UNDEFINED";
64 }
65
66 /// call for fields that should be mandatory
67 void safe_print( const ast::Node * n ) {
68 if ( n ) n->accept( *this );
69 else undefined();
70 }
71
72 /// call to print short form. Incorporates features of safe_print()
73 void short_print( const ast::Decl * n ) {
74 if ( ! n ) { undefined(); return; }
75 bool old_short = short_mode; short_mode = true;
76 n->accept( *this );
77 short_mode = old_short;
78 }
79
80 static const char* Names[];
81
82 struct Names {
83 static constexpr auto FuncSpecifiers = make_array<const char*>(
84 "inline", "_Noreturn", "fortran"
85 );
86
87 static constexpr auto StorageClasses = make_array<const char*>(
88 "extern", "static", "auto", "register", "_Thread_local"
89 );
90
91 static constexpr auto Qualifiers = make_array<const char*>(
92 "const", "restrict", "volatile", "lvalue", "mutex", "_Atomic"
93 );
94 };
95
96 template<typename storage_t, size_t N>
97 void print(const storage_t & storage, const array<const char *, N> & Names ) {
98 if ( storage.any() ) {
99 for ( size_t i = 0; i < Names.size(); i += 1 ) {
100 if ( storage[i] ) {
101 os << Names[i] << ' ';
102 }
103 }
104 }
105 }
106
107 void print( const ast::Function::Specs & specs ) {
108 print(specs, Names::FuncSpecifiers);
109 }
110
111 void print( const ast::Storage::Classes & storage ) {
112 print(storage, Names::StorageClasses);
113 }
114
115 void print( const ast::CV::Qualifiers & qualifiers ) {
116 print(qualifiers, Names::Qualifiers);
117 }
118
119 void print( const std::vector<ast::Label> & labels ) {
120 if ( labels.empty() ) return;
121 os << indent << "... Labels: {";
122 bool isFirst = true;
123 for ( const Label & l : labels ) {
124 if ( isFirst ) { isFirst = false; } else { os << ","; }
125 os << l;
126 }
127 os << "}" << endl;
128 }
129
130 void print( const ast::Expr::InferUnion & inferred, unsigned level = 0 ) {
131 if (inferred.data.resnSlots && !inferred.data.resnSlots->empty()) {
132 os << indent << "with " << inferred.data.resnSlots->size()
133 << " pending inference slots" << endl;
134 }
135 if (inferred.data.inferParams && !inferred.data.inferParams->empty()) {
136 os << indent << "with inferred parameters " << level << ":" << endl;
137 ++indent;
138 for ( const auto & i : *inferred.data.inferParams ) {
139 os << indent;
140 short_print( i.second.declptr );
141 os << endl;
142 print( i.second.expr->inferred, level+1 );
143 }
144 --indent;
145 }
146 }
147
148 void print( const ast::FunctionType::ForallList & forall ) {
149 if ( forall.empty() ) return;
150 os << "forall" << endl;
151 ++indent;
152 printAll( forall );
153 os << indent;
154 --indent;
155 }
156
157 void print( const ast::FunctionType::AssertionList & assts ) {
158 if (assts.empty()) return;
159 os << "with assertions" << endl;
160 ++indent;
161 printAll(assts);
162 os << indent;
163 --indent;
164 }
165
166 void print( const std::vector<ptr<Attribute>> & attrs ) {
167 if ( attrs.empty() ) return;
168 os << "with attributes" << endl;
169 ++indent;
170 printAll( attrs );
171 --indent;
172 }
173
174 void print( const std::vector<ptr<Expr>> & params ) {
175 if ( params.empty() ) return;
176 os << endl << indent << "... with parameters" << endl;
177 ++indent;
178 printAll( params );
179 --indent;
180 }
181
182 void print( const ast::AggregateDecl * node ) {
183 os << node->typeString() << " " << node->name;
184
185 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
186 os << " " << Linkage::name( node->linkage );
187 }
188
189 os << " " << (node->body ? "with" : "without") << " body";
190
191 if ( ! node->params.empty() ) {
192 os << endl << indent << "... with parameters" << endl;
193 ++indent;
194 printAll( node->params );
195 --indent;
196 }
197
198 if ( ! short_mode && ! node->members.empty() ) {
199 os << endl << indent << "... with members" << endl;
200 ++indent;
201 printAll( node->members );
202 --indent;
203 }
204
205 if ( ! short_mode && ! node->attributes.empty() ) {
206 os << endl << indent << "... with attributes" << endl;
207 ++indent;
208 printAll( node->attributes );
209 --indent;
210 }
211
212 auto ptrToEnum = dynamic_cast<const ast::EnumDecl *>(node);
213 if ( ! short_mode && ptrToEnum && ptrToEnum->base ) {
214 os << endl << indent << ".. with (enum) base" << endl;
215 ++indent;
216 ptrToEnum->base->accept( *this );
217 --indent;
218 }
219
220 os << endl;
221 }
222
223 void preprint( const ast::NamedTypeDecl * node ) {
224 if ( ! node->name.empty() ) {
225 os << node->name << ": ";
226 }
227
228 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
229 os << Linkage::name( node->linkage ) << " ";
230 }
231
232 print( node->storage );
233 os << node->typeString();
234
235 if ( node->base ) {
236 os << " for ";
237 ++indent;
238 node->base->accept( *this );
239 --indent;
240 }
241
242 if ( ! node->assertions.empty() ) {
243 os << endl << indent << "... with assertions" << endl;
244 ++indent;
245 printAll( node->assertions );
246 --indent;
247 }
248 }
249
250 void postprint( const ast::Expr * node ) {
251 print( node->inferred );
252
253 if ( node->result ) {
254 os << endl << indent << "... with resolved type:" << endl;
255 ++indent;
256 os << indent;
257 node->result->accept( *this );
258 --indent;
259 }
260
261 if ( node->env ) {
262 os << endl << indent << "... with environment:" << endl;
263 ++indent;
264 node->env->accept( *this );
265 --indent;
266 }
267
268 if ( node->extension ) {
269 os << endl << indent << "... with extension";
270 }
271 }
272
273 void preprint( const ast::Type * node ) {
274 print( node->qualifiers );
275 }
276
277 void preprint( const ast::FunctionType * node ) {
278 print( node->forall );
279 print( node->assertions );
280 print( node->qualifiers );
281 }
282
283 void preprint( const ast::BaseInstType * node ) {
284 print( node->attributes );
285 print( node->qualifiers );
286 }
287
288public:
289 virtual const ast::DeclWithType * visit( const ast::ObjectDecl * node ) override final {
290 if ( ! node->name.empty() ) os << node->name << ": ";
291
292 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
293 os << Linkage::name( node->linkage ) << " ";
294 }
295
296 print( node->storage );
297
298 if ( node->type ) {
299 node->type->accept( *this );
300 } else {
301 os << "untyped entity";
302 }
303
304 if ( ! short_mode && node->init ) {
305 ++indent;
306 os << " with initializer (" << (
307 node->init->maybeConstructed
308 ? "maybe constructed"
309 : "not constructed"
310 ) << ")" << endl << indent;
311 node->init->accept( *this );
312 --indent;
313 os << endl;
314 }
315
316 if ( ! short_mode && ! node->attributes.empty() ) {
317 os << endl << indent << "... with attributes:" << endl;
318 ++indent;
319 printAll( node->attributes );
320 --indent;
321 }
322
323 if ( node->bitfieldWidth ) {
324 os << indent << " with bitfield width ";
325 node->bitfieldWidth->accept( *this );
326 }
327
328 return node;
329 }
330
331 virtual const ast::DeclWithType * visit( const ast::FunctionDecl * node ) override final {
332 if ( !node->name.empty() ) os << node->name << ": ";
333
334 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
335 os << Linkage::name( node->linkage ) << " ";
336 }
337
338 if ( ! short_mode ) printAll( node->attributes );
339
340 print( node->storage );
341 print( node->funcSpec );
342
343
344
345 if ( node->type && node->isTypeFixed ) {
346 node->type->accept( *this );
347 } else {
348 if (!node->type_params.empty()) {
349 os << "forall" << endl;
350 ++indent;
351 printAll(node->type_params);
352 os << indent;
353 --indent;
354
355 if (!node->assertions.empty()) {
356 os << "with assertions" << endl;
357 ++indent;
358 printAll(node->assertions);
359 os << indent;
360 --indent;
361 }
362 }
363
364 os << "function" << endl;
365 if ( ! node->params.empty() ) {
366 os << indent << "... with parameters" << endl;
367 ++indent;
368 printAll( node->params );
369 if ( node->type->isVarArgs ) {
370 os << indent << "and a variable number of other arguments" << endl;
371 }
372 --indent;
373 } else if ( node->type->isVarArgs ) {
374 os << indent+1 << "accepting unspecified arguments" << endl;
375 }
376
377 os << indent << "... returning";
378 if ( node->returns.empty() ) {
379 os << " nothing" << endl;
380 } else {
381 os << endl;
382 ++indent;
383 printAll( node->returns );
384 --indent;
385 }
386 }
387
388 if ( ! short_mode && node->stmts ) {
389 ++indent;
390 os << " with body" << endl << indent;
391 node->stmts->accept( *this );
392 --indent;
393 }
394
395 return node;
396 }
397
398 virtual const ast::Decl * visit( const ast::StructDecl * node ) override final {
399 print(node);
400 return node;
401 }
402
403 virtual const ast::Decl * visit( const ast::UnionDecl * node ) override final {
404 print(node);
405 return node;
406 }
407
408 virtual const ast::Decl * visit( const ast::EnumDecl * node ) override final {
409 print(node);
410 return node;
411 }
412
413 virtual const ast::Decl * visit( const ast::TraitDecl * node ) override final {
414 print(node);
415 return node;
416 }
417
418 virtual const ast::Decl * visit( const ast::TypeDecl * node ) override final {
419 preprint( node );
420 if ( ! short_mode && node->init ) {
421 os << endl << indent << "with type initializer: ";
422 ++indent;
423 node->init->accept( *this );
424 --indent;
425 }
426
427 return node;
428 }
429
430 virtual const ast::Decl * visit( const ast::TypedefDecl * node ) override final {
431 preprint( node );
432 return node;
433 }
434
435 virtual const ast::AsmDecl * visit( const ast::AsmDecl * node ) override final {
436 safe_print( node->stmt );
437 return node;
438 }
439
440 virtual const ast::DirectiveDecl * visit( const ast::DirectiveDecl * node ) override final {
441 safe_print( node->stmt );
442 return node;
443 }
444
445 virtual const ast::StaticAssertDecl * visit( const ast::StaticAssertDecl * node ) override final {
446 os << "Static Assert with condition: ";
447 ++indent;
448 safe_print( node->cond );
449 os << endl << indent-1 << "and message: ";
450 safe_print( node->msg );
451 --indent;
452 os << endl;
453
454 return node;
455 }
456
457 virtual const ast::CompoundStmt * visit( const ast::CompoundStmt * node ) override final {
458 os << "Compound Statement:" << endl;
459 ++indent;
460 printAll( node->kids );
461 --indent;
462 return node;
463 }
464
465 virtual const ast::Stmt * visit( const ast::ExprStmt * node ) override final {
466 ++indent;
467 os << "Expression Statement:" << endl << indent;
468 safe_print( node->expr );
469 --indent;
470 return node;
471 }
472
473 virtual const ast::Stmt * visit( const ast::AsmStmt * node ) override final {
474 os << "Assembler Statement:" << endl;
475 ++indent;
476 os << indent-1 << "instruction:" << endl << indent;
477 safe_print( node->instruction );
478 if ( ! node->output.empty() ) {
479 os << endl << indent << "output:" << endl;
480 printAll( node->output );
481 } // if
482 if ( ! node->input.empty() ) {
483 os << indent << "input:" << endl;
484 printAll( node->input );
485 } // if
486 if ( ! node->clobber.empty() ) {
487 os << indent << "clobber:" << endl;
488 printAll( node->clobber );
489 } // if
490 --indent;
491 return node;
492 }
493
494 virtual const ast::Stmt * visit( const ast::DirectiveStmt * node ) override final {
495 os << "GCC Directive: " << node->directive << endl;
496 return node;
497 }
498
499 virtual const ast::Stmt * visit( const ast::IfStmt * node ) override final {
500 os << "If on condition:" << endl;
501 ++indent;
502 os << indent;
503 safe_print( node->cond );
504 --indent;
505
506 if ( ! node->inits.empty() ) {
507 os << indent << "... with initialization:" << endl;
508 ++indent;
509 for ( const ast::Stmt * stmt : node->inits ) {
510 os << indent;
511 safe_print( stmt );
512 }
513 --indent;
514 os << endl;
515 }
516
517 os << indent << "... then:" << endl;
518
519 ++indent;
520 os << indent;
521 safe_print( node->then );
522 --indent;
523
524 if ( node->else_ != 0 ) {
525 os << indent << "... else:" << endl;
526 ++indent;
527 os << indent;
528 node->else_->accept( *this );
529 --indent;
530 } // if
531 return node;
532 }
533
534 virtual const ast::Stmt * visit( const ast::WhileDoStmt * node ) override final {
535 if ( node->isDoWhile ) { os << "Do-"; }
536 os << "While on condition:" << endl;
537 ++indent;
538 safe_print( node->cond );
539 os << indent-1 << "... with body:" << endl;
540 safe_print( node->body );
541
542 if ( ! node->inits.empty() ) {
543 os << indent-1 << "... with inits:" << endl;
544 printAll( node->inits );
545 }
546 --indent;
547
548 return node;
549 }
550
551 virtual const ast::Stmt * visit( const ast::ForStmt * node ) override final {
552 os << "For Statement" << endl;
553
554 if ( ! node->inits.empty() ) {
555 os << indent << "... initialization:" << endl;
556 ++indent;
557 for ( const ast::Stmt * stmt : node->inits ) {
558 os << indent+1;
559 safe_print( stmt );
560 }
561 --indent;
562 }
563
564 if ( node->cond ) {
565 os << indent << "... condition:" << endl;
566 ++indent;
567 os << indent;
568 node->cond->accept( *this );
569 --indent;
570 }
571
572 if ( node->inc ) {
573 os << indent << "... increment:" << endl;
574 ++indent;
575 os << indent;
576 node->inc->accept( *this );
577 --indent;
578 }
579
580 if ( node->body ) {
581 os << indent << "... with body:" << endl;
582 ++indent;
583 os << indent;
584 node->body->accept( *this );
585 --indent;
586 }
587 os << endl;
588 print( node->labels );
589
590 return node;
591 }
592
593 virtual const ast::Stmt * visit( const ast::SwitchStmt * node ) override final {
594 os << "Switch on condition: ";
595 safe_print( node->cond );
596 os << endl;
597
598 ++indent;
599 for ( const ast::CaseClause * stmt : node->cases ) {
600 stmt->accept( *this );
601 }
602 --indent;
603
604 return node;
605 }
606
607 virtual const ast::CaseClause * visit( const ast::CaseClause * node ) override final {
608 if ( node->isDefault() ) {
609 os << indent << "Default ";
610 } else {
611 os << indent << "Case ";
612 safe_print( node->cond );
613 } // if
614 os << endl;
615
616 ++indent;
617 for ( const ast::Stmt * stmt : node->stmts ) {
618 os << indent;
619 stmt->accept( *this );
620 }
621 --indent;
622
623 return node;
624 }
625
626 virtual const ast::Stmt * visit( const ast::BranchStmt * node ) override final {
627 os << "Branch (" << node->kindName() << ")" << endl;
628 ++indent;
629 if ( ! node->target.empty() ) {
630 os << indent << "with target: " << node->target << endl;
631 }
632
633 if ( ! node->originalTarget.empty() ) {
634 os << indent << "with original target: " << node->originalTarget << endl;
635 }
636
637 if ( node->computedTarget ) {
638 os << indent << "with computed target: ";
639 node->computedTarget->accept( *this );
640 os << endl;
641 }
642 --indent;
643
644 return node;
645 }
646
647 virtual const ast::Stmt * visit( const ast::ReturnStmt * node ) override final {
648 os << "Return Statement, returning";
649 if ( node->expr ) {
650 ++indent;
651 os << ":" << endl << indent;
652 node->expr->accept( *this );
653 --indent;
654 } else {
655 os << " void";
656 }
657 os << endl;
658
659 return node;
660 }
661
662 virtual const ast::Stmt * visit( const ast::ThrowStmt * node ) override final {
663 if ( node->target ) os << "Non-Local ";
664
665 switch( node->kind ) {
666 case ast::ExceptionKind::Terminate: os << "Terminate "; break;
667 case ast::ExceptionKind::Resume: os << "Resume "; break;
668 }
669
670 ++indent;
671 os << "Throw Statement, raising: ";
672 safe_print( node->expr );
673 if ( node->target ) {
674 os << "... at: ";
675 node->target->accept( *this );
676 }
677 --indent;
678
679 return node;
680 }
681
682 virtual const ast::Stmt * visit( const ast::TryStmt * node ) override final {
683 ++indent;
684 os << "Try Statement" << endl << indent-1
685 << "... with block:" << endl << indent;
686 safe_print( node->body );
687
688 os << indent-1 << "... and handlers:" << endl;
689 for ( const ast::CatchClause * stmt : node->handlers ) {
690 os << indent;
691 stmt->accept( *this );
692 }
693
694 if ( node->finally ) {
695 os << indent-1 << "... and finally:" << endl << indent;
696 node->finally->accept( *this );
697 }
698 --indent;
699
700 return node;
701 }
702
703 virtual const ast::CatchClause * visit( const ast::CatchClause * node ) override final {
704 os << "Catch ";
705 switch ( node->kind ) {
706 case ast::ExceptionKind::Terminate: os << "Terminate "; break;
707 case ast::ExceptionKind::Resume: os << "Resume "; break;
708 }
709 os << "Statement" << endl << indent;
710
711 ++indent;
712 os << "... catching: ";
713 short_print( node->decl );
714 os << endl;
715
716 if ( node->cond ) {
717 os << indent-1 << "... with conditional:" << endl << indent;
718 node->cond->accept( *this );
719 }
720
721 os << indent-1 << "... with block:" << endl << indent;
722 safe_print( node->body );
723 --indent;
724
725 return node;
726 }
727
728 virtual const ast::FinallyClause * visit( const ast::FinallyClause * node ) override final {
729 os << "Finally Statement" << endl;
730 os << indent << "... with block:" << endl;
731 ++indent;
732 os << indent;
733 safe_print( node->body );
734 --indent;
735
736 return node;
737 }
738
739 virtual const ast::Stmt * visit( const ast::SuspendStmt * node ) override final {
740 os << "Suspend Statement";
741 switch (node->type) {
742 case ast::SuspendStmt::None : os << " with implicit target"; break;
743 case ast::SuspendStmt::Generator: os << " for generator"; break;
744 case ast::SuspendStmt::Coroutine: os << " for coroutine"; break;
745 }
746 os << endl;
747
748 ++indent;
749 if(node->then) {
750 os << indent << " with post statement :" << endl;
751 safe_print( node->then );
752 }
753 ++indent;
754
755 return node;
756 }
757
758 virtual const ast::Stmt * visit( const ast::WaitForStmt * node ) override final {
759 os << "Waitfor Statement" << endl;
760 indent += 2;
761 for( const auto & clause : node->clauses ) {
762 clause->accept( *this );
763 }
764
765 if ( node->timeout_time ) {
766 os << indent-1 << "timeout of:" << endl;
767 node->timeout_time->accept( *this );
768
769 if ( node->timeout_stmt ) {
770 os << indent-1 << "... with statment:" << endl;
771 node->timeout_stmt->accept( *this );
772 }
773
774 if ( node->timeout_cond ) {
775 os << indent-1 << "... with condition:" << endl;
776 node->timeout_cond->accept( *this );
777 }
778 }
779
780 if ( node->else_stmt ) {
781 os << indent-1 << "else:" << endl;
782 node->else_stmt->accept( *this );
783
784 if ( node->else_cond ) {
785 os << indent-1 << "... with condition:" << endl;
786 node->else_cond->accept( *this );
787 }
788 }
789
790 return node;
791 }
792
793 virtual const ast::WaitForClause * visit( const ast::WaitForClause * node ) override final {
794 os << indent-1 << "target function: ";
795 safe_print( node->target_func );
796
797 if ( !node->target_args.empty() ) {
798 os << endl << indent-1 << "... with arguments:" << endl;
799 for( const ast::Expr * arg : node->target_args ) {
800 arg->accept( *this );
801 }
802 }
803
804 if ( node->stmt ) {
805 os << indent-1 << "... with statment:" << endl;
806 node->stmt->accept( *this );
807 }
808
809 if ( node->cond ) {
810 os << indent-1 << "... with condition:" << endl;
811 node->cond->accept( *this );
812 }
813
814 return node;
815 }
816
817 virtual const ast::Decl * visit( const ast::WithStmt * node ) override final {
818 os << "With statement" << endl;
819 os << indent << "... with expressions:" << endl;
820 ++indent;
821 printAll( node->exprs );
822 os << indent-1 << "... with statement:" << endl << indent;
823 safe_print( node->stmt );
824 --indent;
825
826 return node;
827 }
828
829 virtual const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
830 os << "Null Statement" << endl;
831 print( node->labels );
832
833 return node;
834 }
835
836 virtual const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
837 os << "Declaration of ";
838 safe_print( node->decl );
839
840 return node;
841 }
842
843 virtual const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
844 os << "Implicit Ctor Dtor Statement" << endl;
845 os << indent << "... with Ctor/Dtor: ";
846 ++indent;
847 safe_print( node->callStmt );
848 --indent;
849 os << endl;
850
851 return node;
852 }
853
854 virtual const ast::Stmt * visit( const ast::MutexStmt * node ) override final {
855 os << "Mutex Statement" << endl;
856 os << indent << "... with Mutex Parameters: ";
857 ++indent;
858 printAll( node->mutexObjs );
859 --indent;
860 os << indent << "... with Statement: ";
861 ++indent;
862 safe_print( node->stmt );
863 --indent;
864 os << endl;
865
866 return node;
867 }
868
869 virtual const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
870 ++indent;
871 os << "Application of" << endl << indent;
872 safe_print( node->func );
873 os << endl;
874 if ( ! node->args.empty() ) {
875 os << indent << "... to arguments" << endl;
876 printAll( node->args );
877 }
878 --indent;
879 postprint( node );
880
881 return node;
882 }
883
884 virtual const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
885 ++indent;
886 os << "Applying untyped:" << endl;
887 os << indent;
888 safe_print( node->func );
889 os << endl << indent-1 << "...to:" << endl;
890 printAll( node->args );
891 --indent;
892 postprint( node );
893
894 return node;
895 }
896
897 virtual const ast::Expr * visit( const ast::NameExpr * node ) override final {
898 os << "Name: " << node->name;
899 postprint( node );
900
901 return node;
902 }
903
904 virtual const ast::Expr * visit( const ast::AddressExpr * node ) override final {
905 os << "Address of:" << endl;
906 ++indent;
907 os << indent;
908 safe_print( node->arg );
909
910 --indent;
911
912 return node;
913 }
914
915 virtual const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
916 os << "Address of label:" << node->arg;
917
918 return node;
919 }
920
921 virtual const ast::Expr * visit( const ast::CastExpr * node ) override final {
922 ++indent;
923 os << (node->isGenerated ? "Generated" : "Explicit") << " Cast of:" << endl << indent;
924 safe_print( node->arg );
925 os << endl << indent-1 << "... to:";
926 if ( ! node->result ) {
927 os << " ";
928 undefined();
929 } else if ( node->result->isVoid() ) {
930 os << " nothing";
931 } else {
932 os << endl << indent;
933 node->result->accept( *this );
934 } // if
935 --indent;
936 postprint( node );
937
938 return node;
939 }
940
941 virtual const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
942 ++indent;
943 os << "Keyword Cast of:" << endl << indent;
944 safe_print( node->arg );
945 --indent;
946 os << endl << indent << "... to: " << node->targetString();
947 postprint( node );
948
949 return node;
950 }
951
952 virtual const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
953 ++indent;
954 os << "Virtual Cast of:" << endl << indent;
955 safe_print( node->arg );
956 os << endl << indent-1 << "... to:";
957 if ( ! node->result ) {
958 os << " unknown";
959 } else {
960 os << endl << indent;
961 node->result->accept( *this );
962 }
963 --indent;
964 postprint( node );
965
966 return node;
967 }
968
969 virtual const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
970 ++indent;
971 os << "Untyped Member Expression, with field: " << endl << indent;
972 safe_print( node->member );
973 os << indent-1 << "... from aggregate:" << endl << indent;
974 safe_print( node->aggregate );
975 --indent;
976 postprint( node );
977
978 return node;
979 }
980
981 virtual const ast::Expr * visit( const ast::MemberExpr * node ) override final {
982 ++indent;
983 os << "Member Expression, with field:" << endl << indent;
984 safe_print( node->member );
985 os << endl << indent-1 << "... from aggregate:" << endl << indent;
986 safe_print( node->aggregate );
987 --indent;
988 postprint( node );
989
990 return node;
991 }
992
993 virtual const ast::Expr * visit( const ast::VariableExpr * node ) override final {
994 os << "Variable Expression: ";
995 short_print( node->var );
996 postprint( node );
997
998 return node;
999 }
1000
1001 virtual const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
1002 os << "Constant Expression (" << node->rep;
1003 if ( node->result ) {
1004 os << ": ";
1005 node->result->accept( *this );
1006 }
1007 os << ")";
1008 postprint( node );
1009
1010 return node;
1011 }
1012
1013 virtual const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
1014 os << "Sizeof Expression on: ";
1015 ++indent;
1016 if ( node->type ) node->type->accept( *this );
1017 else safe_print( node->expr );
1018 --indent;
1019 postprint( node );
1020
1021 return node;
1022 }
1023
1024 virtual const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
1025 os << "Alignof Expression on: ";
1026 ++indent;
1027 if ( node->type ) node->type->accept( *this );
1028 else safe_print( node->expr );
1029 --indent;
1030 postprint( node );
1031
1032 return node;
1033 }
1034
1035 virtual const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
1036 os << "Untyped Offsetof Expression on member " << node->member << " of ";
1037 ++indent;
1038 safe_print( node->type );
1039 --indent;
1040 postprint( node );
1041
1042 return node;
1043 }
1044
1045 virtual const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
1046 os << "Offsetof Expression on member " << node->member->name << " of ";
1047 ++indent;
1048 safe_print( node->type );
1049 --indent;
1050 postprint( node );
1051
1052 return node;
1053 }
1054
1055 virtual const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
1056 os << "Offset Pack Expression on: ";
1057 ++indent;
1058 safe_print( node->type );
1059 --indent;
1060 postprint( node );
1061
1062 return node;
1063 }
1064
1065 virtual const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
1066 os << "Short-circuited operation (" << (node->isAnd ? "and" : "or") << ") on: ";
1067 safe_print( node->arg1 );
1068 os << " and ";
1069 safe_print( node->arg2 );
1070 postprint( node );
1071
1072 return node;
1073 }
1074
1075 virtual const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
1076 ++indent;
1077 os << "Conditional expression on:" << endl << indent;
1078 safe_print( node->arg1 );
1079 os << indent-1 << "First alternative:" << endl << indent;
1080 safe_print( node->arg2 );
1081 os << indent-1 << "Second alternative:" << endl << indent;
1082 safe_print( node->arg3 );
1083 --indent;
1084 postprint( node );
1085
1086 return node;
1087 }
1088
1089 virtual const ast::Expr * visit( const ast::CommaExpr * node ) override final {
1090 ++indent;
1091 os << "Comma Expression:" << endl << indent;
1092 safe_print( node->arg1 );
1093 os << endl << indent;
1094 safe_print( node->arg2 );
1095 --indent;
1096 postprint( node );
1097
1098 return node;
1099 }
1100
1101 virtual const ast::Expr * visit( const ast::TypeExpr * node ) override final {
1102 safe_print( node->type );
1103 postprint( node );
1104
1105 return node;
1106 }
1107
1108 virtual const ast::Expr * visit( const ast::DimensionExpr * node ) override final {
1109 os << "Type-Sys Value: " << node->name;
1110 postprint( node );
1111
1112 return node;
1113 }
1114
1115 virtual const ast::Expr * visit( const ast::AsmExpr * node ) override final {
1116 os << "Asm Expression:" << endl;
1117 ++indent;
1118 if ( !node->inout.empty() ) os << "[" << node->inout << "] ";
1119 if ( node->constraint ) node->constraint->accept( *this );
1120 if ( node->operand ) node->operand->accept( *this );
1121 --indent;
1122
1123 return node;
1124 }
1125
1126 virtual const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
1127 ++indent;
1128 os << "Implicit Copy Constructor Expression:" << endl << indent;
1129 safe_print( node->callExpr );
1130 --indent;
1131 postprint( node );
1132
1133 return node;
1134 }
1135
1136 virtual const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
1137 os << "Constructor Expression:" << endl << indent+1;
1138 indent += 2;
1139 safe_print( node->callExpr );
1140 indent -= 2;
1141 postprint( node );
1142
1143 return node;
1144 }
1145
1146 virtual const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
1147 ++indent;
1148 os << "Compound Literal Expression: " << endl << indent;
1149 safe_print( node->result );
1150 os << indent;
1151 safe_print( node->init );
1152 --indent;
1153 postprint( node );
1154
1155 return node;
1156 }
1157
1158 virtual const ast::Expr * visit( const ast::RangeExpr * node ) override final {
1159 os << "Range Expression: ";
1160 safe_print( node->low );
1161 os << " ... ";
1162 safe_print( node->high );
1163 postprint( node );
1164
1165 return node;
1166 }
1167
1168 virtual const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
1169 os << "Untyped Tuple:" << endl;
1170 ++indent;
1171 printAll( node->exprs );
1172 --indent;
1173 postprint( node );
1174
1175 return node;
1176 }
1177
1178 virtual const ast::Expr * visit( const ast::TupleExpr * node ) override final {
1179 os << "Tuple:" << endl;
1180 ++indent;
1181 printAll( node->exprs );
1182 --indent;
1183 postprint( node );
1184
1185 return node;
1186 }
1187
1188 virtual const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
1189 os << "Tuple Index Expression, with tuple:" << endl;
1190 ++indent;
1191 os << indent;
1192 safe_print( node->tuple );
1193 os << indent << "with index: " << node->index << endl;
1194 --indent;
1195 postprint( node );
1196
1197 return node;
1198 }
1199
1200 virtual const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
1201 os << "Tuple Assignment Expression, with stmt expr:" << endl;
1202 ++indent;
1203 os << indent;
1204 safe_print( node->stmtExpr );
1205 --indent;
1206 postprint( node );
1207
1208 return node;
1209 }
1210
1211 virtual const ast::Expr * visit( const ast::StmtExpr * node ) override final {
1212 ++indent;
1213 os << "Statement Expression:" << endl << indent;
1214 safe_print( node->stmts );
1215 if ( ! node->returnDecls.empty() ) {
1216 os << indent << "... with returnDecls: ";
1217 printAll( node->returnDecls );
1218 }
1219 if ( ! node->dtors.empty() ) {
1220 os << indent << "... with dtors: ";
1221 printAll( node->dtors );
1222 }
1223 --indent;
1224 postprint( node );
1225
1226 return node;
1227 }
1228
1229 virtual const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
1230 ++indent;
1231 os << "Unique Expression with id: " << node->id << endl << indent;
1232 safe_print( node->expr );
1233 if ( node->object ) {
1234 os << indent-1 << "... with decl: ";
1235 short_print( node->object );
1236 }
1237 --indent;
1238 postprint( node );
1239
1240 return node;
1241 }
1242
1243 virtual const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
1244 ++indent;
1245 os << "Untyped Init Expression" << endl << indent;
1246 safe_print( node->expr );
1247 if ( ! node->initAlts.empty() ) {
1248 for ( const InitAlternative & alt : node->initAlts ) {
1249 os << indent << "InitAlternative: ";
1250 safe_print( alt.type );
1251 safe_print( alt.designation );
1252 }
1253 }
1254 --indent;
1255
1256 return node;
1257 }
1258
1259 virtual const ast::Expr * visit( const ast::InitExpr * node ) override final {
1260 ++indent;
1261 os << "Init Expression" << endl << indent;
1262 safe_print( node->expr );
1263 os << indent << "... with designation: ";
1264 safe_print( node->designation );
1265 --indent;
1266
1267 return node;
1268 }
1269
1270 virtual const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
1271 ++indent;
1272 os << "Deleted Expression" << endl << indent;
1273 safe_print( node->expr );
1274 os << endl << indent << "... deleted by: ";
1275 safe_print( node->deleteStmt );
1276 --indent;
1277
1278 return node;
1279 }
1280
1281 virtual const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
1282 ++indent;
1283 os << "Default Argument Expression" << endl << indent;
1284 safe_print( node->expr );
1285 --indent;
1286
1287 return node;
1288 }
1289
1290 virtual const ast::Expr * visit( const ast::GenericExpr * node ) override final {
1291 ++indent;
1292 os << "C11 _Generic Expression" << endl << indent;
1293 safe_print( node->control );
1294 os << endl << indent << "... with associations:" << endl;
1295 for ( const auto & assoc : node->associations ) {
1296 os << indent;
1297 if ( assoc.type ) {
1298 os << "... type: ";
1299 assoc.type->accept( *this );
1300 os << endl << indent << "... expression: ";
1301 safe_print( assoc.expr );
1302 } else {
1303 os << "... default: ";
1304 safe_print( assoc.expr );
1305 }
1306 os << endl;
1307 }
1308 --indent;
1309
1310 return node;
1311 }
1312
1313 virtual const ast::Type * visit( const ast::VoidType * node ) override final {
1314 preprint( node );
1315 os << "void";
1316 return node;
1317 }
1318
1319 virtual const ast::Type * visit( const ast::BasicType * node ) override final {
1320 preprint( node );
1321 os << ast::BasicType::typeNames[ node->kind ];
1322 return node;
1323 }
1324
1325 virtual const ast::Type * visit( const ast::PointerType * node ) override final {
1326 preprint( node );
1327 if ( ! node->isArray() ) {
1328 os << "pointer to ";
1329 } else {
1330 os << "decayed ";
1331 if ( node->isStatic ) {
1332 os << "static ";
1333 }
1334
1335 if ( node->isVarLen ) {
1336 os << "variable length array of ";
1337 } else if ( node->dimension ) {
1338 os << "array of ";
1339 node->dimension->accept( *this );
1340 os << " ";
1341 }
1342 }
1343 safe_print( node->base );
1344
1345 return node;
1346 }
1347
1348 virtual const ast::Type * visit( const ast::ArrayType * node ) override final {
1349 preprint( node );
1350 if ( node->isStatic ) {
1351 os << "static ";
1352 }
1353
1354 if ( node->isVarLen ) {
1355 os << "variable length array of ";
1356 } else if ( node->dimension ) {
1357 os << "array of ";
1358 } else {
1359 os << "open array of ";
1360 }
1361
1362 safe_print( node->base );
1363
1364 if ( node->dimension ) {
1365 os << " with dimension of ";
1366 node->dimension->accept( *this );
1367 }
1368
1369 return node;
1370 }
1371
1372 virtual const ast::Type * visit( const ast::ReferenceType * node ) override final {
1373 preprint( node );
1374 os << "reference to ";
1375 safe_print( node->base );
1376
1377 return node;
1378 }
1379
1380 virtual const ast::Type * visit( const ast::QualifiedType * node ) override final {
1381 preprint( node );
1382 ++indent;
1383 os << "Qualified Type:" << endl << indent;
1384 safe_print( node->parent );
1385 os << endl << indent;
1386 safe_print( node->child );
1387 os << endl;
1388 --indent;
1389
1390 return node;
1391 }
1392
1393 virtual const ast::Type * visit( const ast::FunctionType * node ) override final {
1394 preprint( node );
1395
1396 os << "function" << endl;
1397 if ( ! node->params.empty() ) {
1398 os << indent << "... with parameters" << endl;
1399 ++indent;
1400 printAll( node->params );
1401 if ( node->isVarArgs ) {
1402 os << indent << "and a variable number of other arguments" << endl;
1403 }
1404 --indent;
1405 } else if ( node->isVarArgs ) {
1406 os << indent+1 << "accepting unspecified arguments" << endl;
1407 }
1408
1409 os << indent << "... returning";
1410 if ( node->returns.empty() ) {
1411 os << " nothing" << endl;
1412 } else {
1413 os << endl;
1414 ++indent;
1415 printAll( node->returns );
1416 --indent;
1417 }
1418
1419 return node;
1420 }
1421
1422 virtual const ast::Type * visit( const ast::StructInstType * node ) override final {
1423 preprint( node );
1424 os << "instance of struct " << node->name;
1425 if ( node->base ) {
1426 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1427 }
1428 print( node->params );
1429
1430 return node;
1431 }
1432
1433 virtual const ast::Type * visit( const ast::UnionInstType * node ) override final {
1434 preprint( node );
1435 os << "instance of union " << node->name;
1436 if ( node->base ) {
1437 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1438 }
1439 print( node->params );
1440
1441 return node;
1442 }
1443
1444 virtual const ast::Type * visit( const ast::EnumInstType * node ) override final {
1445 preprint( node );
1446 os << "instance of enum " << node->name;
1447 if ( node->base ) {
1448 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1449 }
1450 print( node->params );
1451
1452 return node;
1453 }
1454
1455 virtual const ast::Type * visit( const ast::TraitInstType * node ) override final {
1456 preprint( node );
1457 os << "instance of trait " << node->name;
1458 print( node->params );
1459
1460 return node;
1461 }
1462
1463 virtual const ast::Type * visit( const ast::TypeInstType * node ) override final {
1464 preprint( node );
1465 const auto & _name = deterministic_output && isUnboundType(node) ? "[unbound]" : node->typeString();
1466 os << "instance of type " << _name
1467 << " (" << (node->kind == ast::TypeDecl::Ftype ? "" : "not ") << "function type)";
1468 print( node->params );
1469
1470 return node;
1471 }
1472
1473 virtual const ast::Type * visit( const ast::TupleType * node ) override final {
1474 preprint( node );
1475 os << "tuple of types" << endl;
1476 ++indent;
1477 printAll( node->types );
1478 --indent;
1479
1480 return node;
1481 }
1482
1483 virtual const ast::Type * visit( const ast::TypeofType * node ) override final {
1484 preprint( node );
1485 if ( node->kind == ast::TypeofType::Basetypeof ) { os << "base-"; }
1486 os << "type-of expression ";
1487 safe_print( node->expr );
1488
1489 return node;
1490 }
1491
1492 virtual const ast::Type * visit( const ast::VTableType * node ) override final {
1493 preprint( node );
1494 os << "vtable for ";
1495 safe_print( node->base );
1496
1497 return node;
1498 }
1499
1500 virtual const ast::Type * visit( const ast::VarArgsType * node ) override final {
1501 preprint( node );
1502 os << "builtin var args pack";
1503 return node;
1504 }
1505
1506 virtual const ast::Type * visit( const ast::ZeroType * node ) override final {
1507 preprint( node );
1508 os << "zero_t";
1509 return node;
1510 }
1511
1512 virtual const ast::Type * visit( const ast::OneType * node ) override final {
1513 preprint( node );
1514 os << "one_t";
1515 return node;
1516 }
1517
1518 virtual const ast::Type * visit( const ast::GlobalScopeType * node ) override final {
1519 preprint( node );
1520 os << "Global Scope Type";
1521 return node;
1522 }
1523
1524 virtual const ast::Designation * visit( const ast::Designation * node ) override final {
1525 if ( node->designators.empty() ) return node;
1526 os << "... designated by: " << endl;
1527 ++indent;
1528 for ( const ast::Expr * d : node->designators ) {
1529 os << indent;
1530 d->accept( *this );
1531 os << endl;
1532 }
1533 --indent;
1534 return node;
1535 }
1536
1537 virtual const ast::Init * visit( const ast::SingleInit * node ) override final {
1538 os << "Simple Initializer: ";
1539 safe_print( node->value );
1540 return node;
1541 }
1542
1543 virtual const ast::Init * visit( const ast::ListInit * node ) override final {
1544 os << "Compound initializer: " << endl;
1545 ++indent;
1546 for ( auto p : group_iterate( node->designations, node->initializers ) ) {
1547 const ast::Designation * d = std::get<0>(p);
1548 const ast::Init * init = std::get<1>(p);
1549 os << indent;
1550 init->accept( *this );
1551 os << endl;
1552 if ( ! d->designators.empty() ) {
1553 os << indent;
1554 d->accept( *this );
1555 }
1556 }
1557 --indent;
1558 return node;
1559 }
1560
1561 virtual const ast::Init * visit( const ast::ConstructorInit * node ) override final {
1562 os << "Constructor initializer: " << endl;
1563 if ( node->ctor ) {
1564 os << indent << "... initially constructed with ";
1565 ++indent;
1566 node->ctor->accept( *this );
1567 --indent;
1568 }
1569
1570 if ( node->dtor ) {
1571 os << indent << "... destructed with ";
1572 ++indent;
1573 node->dtor->accept( *this );
1574 --indent;
1575 }
1576
1577 if ( node->init ) {
1578 os << indent << "... with fallback C-style initializer: ";
1579 ++indent;
1580 node->init->accept( *this );
1581 --indent;
1582 }
1583 return node;
1584 }
1585
1586 virtual const ast::Attribute * visit( const ast::Attribute * node ) override final {
1587 if ( node->empty() ) return node;
1588 os << "Attribute with name: " << node->name;
1589 if ( node->params.empty() ) return node;
1590 os << " with parameters: " << endl;
1591 ++indent;
1592 printAll( node->params );
1593 --indent;
1594 return node;
1595 }
1596
1597 virtual const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
1598 os << indent << "Types:" << endl;
1599 for ( const auto& i : *node ) {
1600 os << indent+1 << i.first.typeString() << " -> ";
1601 indent += 2;
1602 safe_print( i.second );
1603 indent -= 2;
1604 os << endl;
1605 }
1606 return node;
1607 }
1608
1609};
1610
1611void print( ostream & os, const ast::Node * node, Indenter indent ) {
1612 Printer printer { os, indent, false };
1613 node->accept(printer);
1614}
1615
1616void printShort( ostream & os, const ast::Decl * node, Indenter indent ) {
1617 Printer printer { os, indent, true };
1618 node->accept(printer);
1619}
1620
1621// Annoyingly these needed to be defined out of line to avoid undefined references.
1622// The size here needs to be explicit but at least the compiler will produce an error
1623// if the wrong size is specified
1624constexpr array<const char*, 3> Printer::Names::FuncSpecifiers;
1625constexpr array<const char*, 5> Printer::Names::StorageClasses;
1626constexpr array<const char*, 6> Printer::Names::Qualifiers;
1627}
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