source: src/AST/Print.cpp@ 891f707

ADT ast-experimental enum pthread-emulation qualifiedEnum
Last change on this file since 891f707 was 3b0bc16, checked in by Peter A. Buhr <pabuhr@…>, 4 years ago

change class name WhileStmt to WhileDoStmt, add else clause to WhileDoStmt and ForStmt, change names thenPart/ElsePart to then/else_
  • Property mode set to 100644
File size: 37.9 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 os << endl;
213 }
214
215 void preprint( const ast::NamedTypeDecl * node ) {
216 if ( ! node->name.empty() ) {
217 os << node->name << ": ";
218 }
219
220 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
221 os << Linkage::name( node->linkage ) << " ";
222 }
223
224 print( node->storage );
225 os << node->typeString();
226
227 if ( node->base ) {
228 os << " for ";
229 ++indent;
230 node->base->accept( *this );
231 --indent;
232 }
233
234 if ( ! node->assertions.empty() ) {
235 os << endl << indent << "... with assertions" << endl;
236 ++indent;
237 printAll( node->assertions );
238 --indent;
239 }
240 }
241
242 void postprint( const ast::Expr * node ) {
243 print( node->inferred );
244
245 if ( node->result ) {
246 os << endl << indent << "... with resolved type:" << endl;
247 ++indent;
248 os << indent;
249 node->result->accept( *this );
250 --indent;
251 }
252
253 if ( node->env ) {
254 os << endl << indent << "... with environment:" << endl;
255 ++indent;
256 node->env->accept( *this );
257 --indent;
258 }
259
260 if ( node->extension ) {
261 os << endl << indent << "... with extension";
262 }
263 }
264
265 void preprint( const ast::Type * node ) {
266 print( node->qualifiers );
267 }
268
269 void preprint( const ast::FunctionType * node ) {
270 print( node->forall );
271 print( node->assertions );
272 print( node->qualifiers );
273 }
274
275 void preprint( const ast::BaseInstType * node ) {
276 print( node->attributes );
277 print( node->qualifiers );
278 }
279
280public:
281 virtual const ast::DeclWithType * visit( const ast::ObjectDecl * node ) override final {
282 if ( ! node->name.empty() ) os << node->name << ": ";
283
284 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
285 os << Linkage::name( node->linkage ) << " ";
286 }
287
288 print( node->storage );
289
290 if ( node->type ) {
291 node->type->accept( *this );
292 } else {
293 os << "untyped entity";
294 }
295
296 if ( ! short_mode && node->init ) {
297 ++indent;
298 os << " with initializer (" << (
299 node->init->maybeConstructed
300 ? "maybe constructed"
301 : "not constructed"
302 ) << ")" << endl << indent;
303 node->init->accept( *this );
304 --indent;
305 os << endl;
306 }
307
308 if ( ! short_mode && ! node->attributes.empty() ) {
309 os << endl << indent << "... with attributes:" << endl;
310 ++indent;
311 printAll( node->attributes );
312 --indent;
313 }
314
315 if ( node->bitfieldWidth ) {
316 os << indent << " with bitfield width ";
317 node->bitfieldWidth->accept( *this );
318 }
319
320 return node;
321 }
322
323 virtual const ast::DeclWithType * visit( const ast::FunctionDecl * node ) override final {
324 if ( !node->name.empty() ) os << node->name << ": ";
325
326 if ( ! short_mode && node->linkage != Linkage::Cforall ) {
327 os << Linkage::name( node->linkage ) << " ";
328 }
329
330 if ( ! short_mode ) printAll( node->attributes );
331
332 print( node->storage );
333 print( node->funcSpec );
334
335
336
337 if ( node->type && node->isTypeFixed ) {
338 node->type->accept( *this );
339 } else {
340 if (!node->type_params.empty()) {
341 os << "forall" << endl;
342 ++indent;
343 printAll(node->type_params);
344 os << indent;
345 --indent;
346
347 if (!node->assertions.empty()) {
348 os << "with assertions" << endl;
349 ++indent;
350 printAll(node->assertions);
351 os << indent;
352 --indent;
353 }
354 }
355
356 os << "function" << endl;
357 if ( ! node->params.empty() ) {
358 os << indent << "... with parameters" << endl;
359 ++indent;
360 printAll( node->params );
361 if ( node->type->isVarArgs ) {
362 os << indent << "and a variable number of other arguments" << endl;
363 }
364 --indent;
365 } else if ( node->type->isVarArgs ) {
366 os << indent+1 << "accepting unspecified arguments" << endl;
367 }
368
369 os << indent << "... returning";
370 if ( node->returns.empty() ) {
371 os << " nothing" << endl;
372 } else {
373 os << endl;
374 ++indent;
375 printAll( node->returns );
376 --indent;
377 }
378 }
379
380 if ( ! short_mode && node->stmts ) {
381 ++indent;
382 os << " with body" << endl << indent;
383 node->stmts->accept( *this );
384 --indent;
385 }
386
387 return node;
388 }
389
390 virtual const ast::Decl * visit( const ast::StructDecl * node ) override final {
391 print(node);
392 return node;
393 }
394
395 virtual const ast::Decl * visit( const ast::UnionDecl * node ) override final {
396 print(node);
397 return node;
398 }
399
400 virtual const ast::Decl * visit( const ast::EnumDecl * node ) override final {
401 print(node);
402 return node;
403 }
404
405 virtual const ast::Decl * visit( const ast::TraitDecl * node ) override final {
406 print(node);
407 return node;
408 }
409
410 virtual const ast::Decl * visit( const ast::TypeDecl * node ) override final {
411 preprint( node );
412 if ( ! short_mode && node->init ) {
413 os << endl << indent << "with type initializer: ";
414 ++indent;
415 node->init->accept( *this );
416 --indent;
417 }
418
419 return node;
420 }
421
422 virtual const ast::Decl * visit( const ast::TypedefDecl * node ) override final {
423 preprint( node );
424 return node;
425 }
426
427 virtual const ast::AsmDecl * visit( const ast::AsmDecl * node ) override final {
428 safe_print( node->stmt );
429 return node;
430 }
431
432 virtual const ast::DirectiveDecl * visit( const ast::DirectiveDecl * node ) override final {
433 safe_print( node->stmt );
434 return node;
435 }
436
437 virtual const ast::StaticAssertDecl * visit( const ast::StaticAssertDecl * node ) override final {
438 os << "Static Assert with condition: ";
439 ++indent;
440 safe_print( node->cond );
441 os << endl << indent-1 << "and message: ";
442 safe_print( node->msg );
443 --indent;
444 os << endl;
445
446 return node;
447 }
448
449 virtual const ast::CompoundStmt * visit( const ast::CompoundStmt * node ) override final {
450 os << "Compound Statement:" << endl;
451 ++indent;
452 printAll( node->kids );
453 --indent;
454 return node;
455 }
456
457 virtual const ast::Stmt * visit( const ast::ExprStmt * node ) override final {
458 ++indent;
459 os << "Expression Statement:" << endl << indent;
460 safe_print( node->expr );
461 --indent;
462 return node;
463 }
464
465 virtual const ast::Stmt * visit( const ast::AsmStmt * node ) override final {
466 os << "Assembler Statement:" << endl;
467 ++indent;
468 os << indent-1 << "instruction:" << endl << indent;
469 safe_print( node->instruction );
470 if ( ! node->output.empty() ) {
471 os << endl << indent << "output:" << endl;
472 printAll( node->output );
473 } // if
474 if ( ! node->input.empty() ) {
475 os << indent << "input:" << endl;
476 printAll( node->input );
477 } // if
478 if ( ! node->clobber.empty() ) {
479 os << indent << "clobber:" << endl;
480 printAll( node->clobber );
481 } // if
482 --indent;
483 return node;
484 }
485
486 virtual const ast::Stmt * visit( const ast::DirectiveStmt * node ) override final {
487 os << "GCC Directive: " << node->directive << endl;
488 return node;
489 }
490
491 virtual const ast::Stmt * visit( const ast::IfStmt * node ) override final {
492 os << "If on condition:" << endl;
493 ++indent;
494 os << indent;
495 safe_print( node->cond );
496 --indent;
497
498 if ( ! node->inits.empty() ) {
499 os << indent << "... with initialization:" << endl;
500 ++indent;
501 for ( const ast::Stmt * stmt : node->inits ) {
502 os << indent;
503 safe_print( stmt );
504 }
505 --indent;
506 os << endl;
507 }
508
509 os << indent << "... then:" << endl;
510
511 ++indent;
512 os << indent;
513 safe_print( node->then );
514 --indent;
515
516 if ( node->else_ != 0 ) {
517 os << indent << "... else:" << endl;
518 ++indent;
519 os << indent;
520 node->else_->accept( *this );
521 --indent;
522 } // if
523 return node;
524 }
525
526 virtual const ast::Stmt * visit( const ast::WhileDoStmt * node ) override final {
527 if ( node->isDoWhile ) { os << "Do-"; }
528 os << "While on condition:" << endl;
529 ++indent;
530 safe_print( node->cond );
531 os << indent-1 << "... with body:" << endl;
532 safe_print( node->body );
533
534 if ( ! node->inits.empty() ) {
535 os << indent-1 << "... with inits:" << endl;
536 printAll( node->inits );
537 }
538 --indent;
539
540 return node;
541 }
542
543 virtual const ast::Stmt * visit( const ast::ForStmt * node ) override final {
544 os << "For Statement" << endl;
545
546 if ( ! node->inits.empty() ) {
547 os << indent << "... initialization:" << endl;
548 ++indent;
549 for ( const ast::Stmt * stmt : node->inits ) {
550 os << indent+1;
551 safe_print( stmt );
552 }
553 --indent;
554 }
555
556 if ( node->cond ) {
557 os << indent << "... condition:" << endl;
558 ++indent;
559 os << indent;
560 node->cond->accept( *this );
561 --indent;
562 }
563
564 if ( node->inc ) {
565 os << indent << "... increment:" << endl;
566 ++indent;
567 os << indent;
568 node->inc->accept( *this );
569 --indent;
570 }
571
572 if ( node->body ) {
573 os << indent << "... with body:" << endl;
574 ++indent;
575 os << indent;
576 node->body->accept( *this );
577 --indent;
578 }
579 os << endl;
580 print( node->labels );
581
582 return node;
583 }
584
585 virtual const ast::Stmt * visit( const ast::SwitchStmt * node ) override final {
586 os << "Switch on condition: ";
587 safe_print( node->cond );
588 os << endl;
589
590 ++indent;
591 for ( const ast::Stmt * stmt : node->stmts ) {
592 stmt->accept( *this );
593 }
594 --indent;
595
596 return node;
597 }
598
599 virtual const ast::Stmt * visit( const ast::CaseStmt * node ) override final {
600 if ( node->isDefault() ) {
601 os << indent << "Default ";
602 } else {
603 os << indent << "Case ";
604 safe_print( node->cond );
605 } // if
606 os << endl;
607
608 ++indent;
609 for ( const ast::Stmt * stmt : node->stmts ) {
610 os << indent;
611 stmt->accept( *this );
612 }
613 --indent;
614
615 return node;
616 }
617
618 virtual const ast::Stmt * visit( const ast::BranchStmt * node ) override final {
619 os << "Branch (" << node->kindName() << ")" << endl;
620 ++indent;
621 if ( ! node->target.empty() ) {
622 os << indent << "with target: " << node->target << endl;
623 }
624
625 if ( ! node->originalTarget.empty() ) {
626 os << indent << "with original target: " << node->originalTarget << endl;
627 }
628
629 if ( node->computedTarget ) {
630 os << indent << "with computed target: ";
631 node->computedTarget->accept( *this );
632 os << endl;
633 }
634 --indent;
635
636 return node;
637 }
638
639 virtual const ast::Stmt * visit( const ast::ReturnStmt * node ) override final {
640 os << "Return Statement, returning";
641 if ( node->expr ) {
642 ++indent;
643 os << ":" << endl << indent;
644 node->expr->accept( *this );
645 --indent;
646 } else {
647 os << " void";
648 }
649 os << endl;
650
651 return node;
652 }
653
654 virtual const ast::Stmt * visit( const ast::ThrowStmt * node ) override final {
655 if ( node->target ) os << "Non-Local ";
656
657 switch( node->kind ) {
658 case ast::ExceptionKind::Terminate: os << "Terminate "; break;
659 case ast::ExceptionKind::Resume: os << "Resume "; break;
660 }
661
662 ++indent;
663 os << "Throw Statement, raising: ";
664 safe_print( node->expr );
665 if ( node->target ) {
666 os << "... at: ";
667 node->target->accept( *this );
668 }
669 --indent;
670
671 return node;
672 }
673
674 virtual const ast::Stmt * visit( const ast::TryStmt * node ) override final {
675 ++indent;
676 os << "Try Statement" << endl << indent-1
677 << "... with block:" << endl << indent;
678 safe_print( node->body );
679
680 os << indent-1 << "... and handlers:" << endl;
681 for ( const ast::CatchStmt * stmt : node->handlers ) {
682 os << indent;
683 stmt->accept( *this );
684 }
685
686 if ( node->finally ) {
687 os << indent-1 << "... and finally:" << endl << indent;
688 node->finally->accept( *this );
689 }
690 --indent;
691
692 return node;
693 }
694
695 virtual const ast::Stmt * visit( const ast::CatchStmt * node ) override final {
696 os << "Catch ";
697 switch ( node->kind ) {
698 case ast::ExceptionKind::Terminate: os << "Terminate "; break;
699 case ast::ExceptionKind::Resume: os << "Resume "; break;
700 }
701 os << "Statement" << endl << indent;
702
703 ++indent;
704 os << "... catching: ";
705 short_print( node->decl );
706 os << endl;
707
708 if ( node->cond ) {
709 os << indent-1 << "... with conditional:" << endl << indent;
710 node->cond->accept( *this );
711 }
712
713 os << indent-1 << "... with block:" << endl << indent;
714 safe_print( node->body );
715 --indent;
716
717 return node;
718 }
719
720 virtual const ast::Stmt * visit( const ast::FinallyStmt * node ) override final {
721 os << "Finally Statement" << endl;
722 os << indent << "... with block:" << endl;
723 ++indent;
724 os << indent;
725 safe_print( node->body );
726 --indent;
727
728 return node;
729 }
730
731 virtual const ast::Stmt * visit( const ast::SuspendStmt * node ) override final {
732 os << "Suspend Statement";
733 switch (node->type) {
734 case ast::SuspendStmt::None : os << " with implicit target"; break;
735 case ast::SuspendStmt::Generator: os << " for generator"; break;
736 case ast::SuspendStmt::Coroutine: os << " for coroutine"; break;
737 }
738 os << endl;
739
740 ++indent;
741 if(node->then) {
742 os << indent << " with post statement :" << endl;
743 safe_print( node->then );
744 }
745 ++indent;
746
747 return node;
748 }
749
750 virtual const ast::Stmt * visit( const ast::WaitForStmt * node ) override final {
751 os << "Waitfor Statement" << endl;
752 indent += 2;
753 for( const auto & clause : node->clauses ) {
754 os << indent-1 << "target function: ";
755 safe_print( clause.target.func );
756
757 if ( ! clause.target.args.empty() ) {
758 os << endl << indent-1 << "... with arguments:" << endl;
759 for( const ast::Expr * arg : clause.target.args ) {
760 arg->accept( *this );
761 }
762 }
763
764 if ( clause.stmt ) {
765 os << indent-1 << "... with statment:" << endl;
766 clause.stmt->accept( *this );
767 }
768
769 if ( clause.cond ) {
770 os << indent-1 << "... with condition:" << endl;
771 clause.cond->accept( *this );
772 }
773 }
774
775 if ( node->timeout.time ) {
776 os << indent-1 << "timeout of:" << endl;
777 node->timeout.time->accept( *this );
778
779 if ( node->timeout.stmt ) {
780 os << indent-1 << "... with statment:" << endl;
781 node->timeout.stmt->accept( *this );
782 }
783
784 if ( node->timeout.cond ) {
785 os << indent-1 << "... with condition:" << endl;
786 node->timeout.cond->accept( *this );
787 }
788 }
789
790 if ( node->orElse.stmt ) {
791 os << indent-1 << "else:" << endl;
792 node->orElse.stmt->accept( *this );
793
794 if ( node->orElse.cond ) {
795 os << indent-1 << "... with condition:" << endl;
796 node->orElse.cond->accept( *this );
797 }
798 }
799 indent -= 2;
800
801 return node;
802 }
803
804 virtual const ast::Decl * visit( const ast::WithStmt * node ) override final {
805 os << "With statement" << endl;
806 os << indent << "... with expressions:" << endl;
807 ++indent;
808 printAll( node->exprs );
809 os << indent-1 << "... with statement:" << endl << indent;
810 safe_print( node->stmt );
811 --indent;
812
813 return node;
814 }
815
816 virtual const ast::NullStmt * visit( const ast::NullStmt * node ) override final {
817 os << "Null Statement" << endl;
818 print( node->labels );
819
820 return node;
821 }
822
823 virtual const ast::Stmt * visit( const ast::DeclStmt * node ) override final {
824 os << "Declaration of ";
825 safe_print( node->decl );
826
827 return node;
828 }
829
830 virtual const ast::Stmt * visit( const ast::ImplicitCtorDtorStmt * node ) override final {
831 os << "Implicit Ctor Dtor Statement" << endl;
832 os << indent << "... with Ctor/Dtor: ";
833 ++indent;
834 safe_print( node->callStmt );
835 --indent;
836 os << endl;
837
838 return node;
839 }
840
841 virtual const ast::Stmt * visit( const ast::MutexStmt * node ) override final {
842 os << "Mutex Statement" << endl;
843 os << indent << "... with Mutex Parameters: ";
844 ++indent;
845 printAll( node->mutexObjs );
846 --indent;
847 os << indent << "... with Statement: ";
848 ++indent;
849 safe_print( node->stmt );
850 --indent;
851 os << endl;
852
853 return node;
854 }
855
856 virtual const ast::Expr * visit( const ast::ApplicationExpr * node ) override final {
857 ++indent;
858 os << "Application of" << endl << indent;
859 safe_print( node->func );
860 os << endl;
861 if ( ! node->args.empty() ) {
862 os << indent << "... to arguments" << endl;
863 printAll( node->args );
864 }
865 --indent;
866 postprint( node );
867
868 return node;
869 }
870
871 virtual const ast::Expr * visit( const ast::UntypedExpr * node ) override final {
872 ++indent;
873 os << "Applying untyped:" << endl;
874 os << indent;
875 safe_print( node->func );
876 os << endl << indent-1 << "...to:" << endl;
877 printAll( node->args );
878 --indent;
879 postprint( node );
880
881 return node;
882 }
883
884 virtual const ast::Expr * visit( const ast::NameExpr * node ) override final {
885 os << "Name: " << node->name;
886 postprint( node );
887
888 return node;
889 }
890
891 virtual const ast::Expr * visit( const ast::AddressExpr * node ) override final {
892 os << "Address of:" << endl;
893 ++indent;
894 os << indent;
895 safe_print( node->arg );
896
897 --indent;
898
899 return node;
900 }
901
902 virtual const ast::Expr * visit( const ast::LabelAddressExpr * node ) override final {
903 os << "Address of label:" << node->arg;
904
905 return node;
906 }
907
908 virtual const ast::Expr * visit( const ast::CastExpr * node ) override final {
909 ++indent;
910 os << (node->isGenerated ? "Generated" : "Explicit") << " Cast of:" << endl << indent;
911 safe_print( node->arg );
912 os << endl << indent-1 << "... to:";
913 if ( ! node->result ) {
914 os << " ";
915 undefined();
916 } else if ( node->result->isVoid() ) {
917 os << " nothing";
918 } else {
919 os << endl << indent;
920 node->result->accept( *this );
921 } // if
922 --indent;
923 postprint( node );
924
925 return node;
926 }
927
928 virtual const ast::Expr * visit( const ast::KeywordCastExpr * node ) override final {
929 ++indent;
930 os << "Keyword Cast of:" << endl << indent;
931 safe_print( node->arg );
932 --indent;
933 os << endl << indent << "... to: " << node->targetString();
934 postprint( node );
935
936 return node;
937 }
938
939 virtual const ast::Expr * visit( const ast::VirtualCastExpr * node ) override final {
940 ++indent;
941 os << "Virtual Cast of:" << endl << indent;
942 safe_print( node->arg );
943 os << endl << indent-1 << "... to:";
944 if ( ! node->result ) {
945 os << " unknown";
946 } else {
947 os << endl << indent;
948 node->result->accept( *this );
949 }
950 --indent;
951 postprint( node );
952
953 return node;
954 }
955
956 virtual const ast::Expr * visit( const ast::UntypedMemberExpr * node ) override final {
957 ++indent;
958 os << "Untyped Member Expression, with field: " << endl << indent;
959 safe_print( node->member );
960 os << indent-1 << "... from aggregate:" << endl << indent;
961 safe_print( node->aggregate );
962 --indent;
963 postprint( node );
964
965 return node;
966 }
967
968 virtual const ast::Expr * visit( const ast::MemberExpr * node ) override final {
969 ++indent;
970 os << "Member Expression, with field:" << endl << indent;
971 safe_print( node->member );
972 os << endl << indent-1 << "... from aggregate:" << endl << indent;
973 safe_print( node->aggregate );
974 --indent;
975 postprint( node );
976
977 return node;
978 }
979
980 virtual const ast::Expr * visit( const ast::VariableExpr * node ) override final {
981 os << "Variable Expression: ";
982 short_print( node->var );
983 postprint( node );
984
985 return node;
986 }
987
988 virtual const ast::Expr * visit( const ast::ConstantExpr * node ) override final {
989 os << "Constant Expression (" << node->rep;
990 if ( node->result ) {
991 os << ": ";
992 node->result->accept( *this );
993 }
994 os << ")";
995 postprint( node );
996
997 return node;
998 }
999
1000 virtual const ast::Expr * visit( const ast::SizeofExpr * node ) override final {
1001 os << "Sizeof Expression on: ";
1002 ++indent;
1003 if ( node->type ) node->type->accept( *this );
1004 else safe_print( node->expr );
1005 --indent;
1006 postprint( node );
1007
1008 return node;
1009 }
1010
1011 virtual const ast::Expr * visit( const ast::AlignofExpr * node ) override final {
1012 os << "Alignof Expression on: ";
1013 ++indent;
1014 if ( node->type ) node->type->accept( *this );
1015 else safe_print( node->expr );
1016 --indent;
1017 postprint( node );
1018
1019 return node;
1020 }
1021
1022 virtual const ast::Expr * visit( const ast::UntypedOffsetofExpr * node ) override final {
1023 os << "Untyped Offsetof Expression on member " << node->member << " of ";
1024 ++indent;
1025 safe_print( node->type );
1026 --indent;
1027 postprint( node );
1028
1029 return node;
1030 }
1031
1032 virtual const ast::Expr * visit( const ast::OffsetofExpr * node ) override final {
1033 os << "Offsetof Expression on member " << node->member->name << " of ";
1034 ++indent;
1035 safe_print( node->type );
1036 --indent;
1037 postprint( node );
1038
1039 return node;
1040 }
1041
1042 virtual const ast::Expr * visit( const ast::OffsetPackExpr * node ) override final {
1043 os << "Offset Pack Expression on: ";
1044 ++indent;
1045 safe_print( node->type );
1046 --indent;
1047 postprint( node );
1048
1049 return node;
1050 }
1051
1052 virtual const ast::Expr * visit( const ast::LogicalExpr * node ) override final {
1053 os << "Short-circuited operation (" << (node->isAnd ? "and" : "or") << ") on: ";
1054 safe_print( node->arg1 );
1055 os << " and ";
1056 safe_print( node->arg2 );
1057 postprint( node );
1058
1059 return node;
1060 }
1061
1062 virtual const ast::Expr * visit( const ast::ConditionalExpr * node ) override final {
1063 ++indent;
1064 os << "Conditional expression on:" << endl << indent;
1065 safe_print( node->arg1 );
1066 os << indent-1 << "First alternative:" << endl << indent;
1067 safe_print( node->arg2 );
1068 os << indent-1 << "Second alternative:" << endl << indent;
1069 safe_print( node->arg3 );
1070 --indent;
1071 postprint( node );
1072
1073 return node;
1074 }
1075
1076 virtual const ast::Expr * visit( const ast::CommaExpr * node ) override final {
1077 ++indent;
1078 os << "Comma Expression:" << endl << indent;
1079 safe_print( node->arg1 );
1080 os << endl << indent;
1081 safe_print( node->arg2 );
1082 --indent;
1083 postprint( node );
1084
1085 return node;
1086 }
1087
1088 virtual const ast::Expr * visit( const ast::TypeExpr * node ) override final {
1089 safe_print( node->type );
1090 postprint( node );
1091
1092 return node;
1093 }
1094
1095 virtual const ast::Expr * visit( const ast::AsmExpr * node ) override final {
1096 os << "Asm Expression:" << endl;
1097 ++indent;
1098 if ( !node->inout.empty() ) os << "[" << node->inout << "] ";
1099 if ( node->constraint ) node->constraint->accept( *this );
1100 if ( node->operand ) node->operand->accept( *this );
1101 --indent;
1102
1103 return node;
1104 }
1105
1106 virtual const ast::Expr * visit( const ast::ImplicitCopyCtorExpr * node ) override final {
1107 ++indent;
1108 os << "Implicit Copy Constructor Expression:" << endl << indent;
1109 safe_print( node->callExpr );
1110 --indent;
1111 postprint( node );
1112
1113 return node;
1114 }
1115
1116 virtual const ast::Expr * visit( const ast::ConstructorExpr * node ) override final {
1117 os << "Constructor Expression:" << endl << indent+1;
1118 indent += 2;
1119 safe_print( node->callExpr );
1120 indent -= 2;
1121 postprint( node );
1122
1123 return node;
1124 }
1125
1126 virtual const ast::Expr * visit( const ast::CompoundLiteralExpr * node ) override final {
1127 ++indent;
1128 os << "Compound Literal Expression: " << endl << indent;
1129 safe_print( node->result );
1130 os << indent;
1131 safe_print( node->init );
1132 --indent;
1133 postprint( node );
1134
1135 return node;
1136 }
1137
1138 virtual const ast::Expr * visit( const ast::RangeExpr * node ) override final {
1139 os << "Range Expression: ";
1140 safe_print( node->low );
1141 os << " ... ";
1142 safe_print( node->high );
1143 postprint( node );
1144
1145 return node;
1146 }
1147
1148 virtual const ast::Expr * visit( const ast::UntypedTupleExpr * node ) override final {
1149 os << "Untyped Tuple:" << endl;
1150 ++indent;
1151 printAll( node->exprs );
1152 --indent;
1153 postprint( node );
1154
1155 return node;
1156 }
1157
1158 virtual const ast::Expr * visit( const ast::TupleExpr * node ) override final {
1159 os << "Tuple:" << endl;
1160 ++indent;
1161 printAll( node->exprs );
1162 --indent;
1163 postprint( node );
1164
1165 return node;
1166 }
1167
1168 virtual const ast::Expr * visit( const ast::TupleIndexExpr * node ) override final {
1169 os << "Tuple Index Expression, with tuple:" << endl;
1170 ++indent;
1171 os << indent;
1172 safe_print( node->tuple );
1173 os << indent << "with index: " << node->index << endl;
1174 --indent;
1175 postprint( node );
1176
1177 return node;
1178 }
1179
1180 virtual const ast::Expr * visit( const ast::TupleAssignExpr * node ) override final {
1181 os << "Tuple Assignment Expression, with stmt expr:" << endl;
1182 ++indent;
1183 os << indent;
1184 safe_print( node->stmtExpr );
1185 --indent;
1186 postprint( node );
1187
1188 return node;
1189 }
1190
1191 virtual const ast::Expr * visit( const ast::StmtExpr * node ) override final {
1192 ++indent;
1193 os << "Statement Expression:" << endl << indent;
1194 safe_print( node->stmts );
1195 if ( ! node->returnDecls.empty() ) {
1196 os << indent << "... with returnDecls: ";
1197 printAll( node->returnDecls );
1198 }
1199 if ( ! node->dtors.empty() ) {
1200 os << indent << "... with dtors: ";
1201 printAll( node->dtors );
1202 }
1203 --indent;
1204 postprint( node );
1205
1206 return node;
1207 }
1208
1209 virtual const ast::Expr * visit( const ast::UniqueExpr * node ) override final {
1210 ++indent;
1211 os << "Unique Expression with id: " << node->id << endl << indent;
1212 safe_print( node->expr );
1213 if ( node->object ) {
1214 os << indent-1 << "... with decl: ";
1215 short_print( node->object );
1216 }
1217 --indent;
1218 postprint( node );
1219
1220 return node;
1221 }
1222
1223 virtual const ast::Expr * visit( const ast::UntypedInitExpr * node ) override final {
1224 ++indent;
1225 os << "Untyped Init Expression" << endl << indent;
1226 safe_print( node->expr );
1227 if ( ! node->initAlts.empty() ) {
1228 for ( const InitAlternative & alt : node->initAlts ) {
1229 os << indent << "InitAlternative: ";
1230 safe_print( alt.type );
1231 safe_print( alt.designation );
1232 }
1233 }
1234 --indent;
1235
1236 return node;
1237 }
1238
1239 virtual const ast::Expr * visit( const ast::InitExpr * node ) override final {
1240 ++indent;
1241 os << "Init Expression" << endl << indent;
1242 safe_print( node->expr );
1243 os << indent << "... with designation: ";
1244 safe_print( node->designation );
1245 --indent;
1246
1247 return node;
1248 }
1249
1250 virtual const ast::Expr * visit( const ast::DeletedExpr * node ) override final {
1251 ++indent;
1252 os << "Deleted Expression" << endl << indent;
1253 safe_print( node->expr );
1254 os << endl << indent << "... deleted by: ";
1255 safe_print( node->deleteStmt );
1256 --indent;
1257
1258 return node;
1259 }
1260
1261 virtual const ast::Expr * visit( const ast::DefaultArgExpr * node ) override final {
1262 ++indent;
1263 os << "Default Argument Expression" << endl << indent;
1264 safe_print( node->expr );
1265 --indent;
1266
1267 return node;
1268 }
1269
1270 virtual const ast::Expr * visit( const ast::GenericExpr * node ) override final {
1271 ++indent;
1272 os << "C11 _Generic Expression" << endl << indent;
1273 safe_print( node->control );
1274 os << endl << indent << "... with associations:" << endl;
1275 for ( const auto & assoc : node->associations ) {
1276 os << indent;
1277 if ( assoc.type ) {
1278 os << "... type: ";
1279 assoc.type->accept( *this );
1280 os << endl << indent << "... expression: ";
1281 safe_print( assoc.expr );
1282 } else {
1283 os << "... default: ";
1284 safe_print( assoc.expr );
1285 }
1286 os << endl;
1287 }
1288 --indent;
1289
1290 return node;
1291 }
1292
1293 virtual const ast::Type * visit( const ast::VoidType * node ) override final {
1294 preprint( node );
1295 os << "void";
1296 return node;
1297 }
1298
1299 virtual const ast::Type * visit( const ast::BasicType * node ) override final {
1300 preprint( node );
1301 os << ast::BasicType::typeNames[ node->kind ];
1302 return node;
1303 }
1304
1305 virtual const ast::Type * visit( const ast::PointerType * node ) override final {
1306 preprint( node );
1307 if ( ! node->isArray() ) {
1308 os << "pointer to ";
1309 } else {
1310 os << "decayed ";
1311 if ( node->isStatic ) {
1312 os << "static ";
1313 }
1314
1315 if ( node->isVarLen ) {
1316 os << "variable length array of ";
1317 } else if ( node->dimension ) {
1318 os << "array of ";
1319 node->dimension->accept( *this );
1320 os << " ";
1321 }
1322 }
1323 safe_print( node->base );
1324
1325 return node;
1326 }
1327
1328 virtual const ast::Type * visit( const ast::ArrayType * node ) override final {
1329 preprint( node );
1330 if ( node->isStatic ) {
1331 os << "static ";
1332 }
1333
1334 if ( node->isVarLen ) {
1335 os << "variable length array of ";
1336 } else if ( node->dimension ) {
1337 os << "array of ";
1338 } else {
1339 os << "open array of ";
1340 }
1341
1342 safe_print( node->base );
1343
1344 if ( node->dimension ) {
1345 os << " with dimension of ";
1346 node->dimension->accept( *this );
1347 }
1348
1349 return node;
1350 }
1351
1352 virtual const ast::Type * visit( const ast::ReferenceType * node ) override final {
1353 preprint( node );
1354 os << "reference to ";
1355 safe_print( node->base );
1356
1357 return node;
1358 }
1359
1360 virtual const ast::Type * visit( const ast::QualifiedType * node ) override final {
1361 preprint( node );
1362 ++indent;
1363 os << "Qualified Type:" << endl << indent;
1364 safe_print( node->parent );
1365 os << endl << indent;
1366 safe_print( node->child );
1367 os << endl;
1368 --indent;
1369
1370 return node;
1371 }
1372
1373 virtual const ast::Type * visit( const ast::FunctionType * node ) override final {
1374 preprint( node );
1375
1376 os << "function" << endl;
1377 if ( ! node->params.empty() ) {
1378 os << indent << "... with parameters" << endl;
1379 ++indent;
1380 printAll( node->params );
1381 if ( node->isVarArgs ) {
1382 os << indent << "and a variable number of other arguments" << endl;
1383 }
1384 --indent;
1385 } else if ( node->isVarArgs ) {
1386 os << indent+1 << "accepting unspecified arguments" << endl;
1387 }
1388
1389 os << indent << "... returning";
1390 if ( node->returns.empty() ) {
1391 os << " nothing" << endl;
1392 } else {
1393 os << endl;
1394 ++indent;
1395 printAll( node->returns );
1396 --indent;
1397 }
1398
1399 return node;
1400 }
1401
1402 virtual const ast::Type * visit( const ast::StructInstType * node ) override final {
1403 preprint( node );
1404 os << "instance of struct " << node->name;
1405 if ( node->base ) {
1406 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1407 }
1408 print( node->params );
1409
1410 return node;
1411 }
1412
1413 virtual const ast::Type * visit( const ast::UnionInstType * node ) override final {
1414 preprint( node );
1415 os << "instance of union " << node->name;
1416 if ( node->base ) {
1417 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1418 }
1419 print( node->params );
1420
1421 return node;
1422 }
1423
1424 virtual const ast::Type * visit( const ast::EnumInstType * node ) override final {
1425 preprint( node );
1426 os << "instance of enum " << node->name;
1427 if ( node->base ) {
1428 os << " " << ( node->base->body ? "with" : "without" ) << " body";
1429 }
1430 print( node->params );
1431
1432 return node;
1433 }
1434
1435 virtual const ast::Type * visit( const ast::TraitInstType * node ) override final {
1436 preprint( node );
1437 os << "instance of trait " << node->name;
1438 print( node->params );
1439
1440 return node;
1441 }
1442
1443 virtual const ast::Type * visit( const ast::TypeInstType * node ) override final {
1444 preprint( node );
1445 const auto & _name = deterministic_output && isUnboundType(node) ? "[unbound]" : node->typeString();
1446 os << "instance of type " << _name
1447 << " (" << (node->kind == ast::TypeDecl::Ftype ? "" : "not ") << "function type)";
1448 print( node->params );
1449
1450 return node;
1451 }
1452
1453 virtual const ast::Type * visit( const ast::TupleType * node ) override final {
1454 preprint( node );
1455 os << "tuple of types" << endl;
1456 ++indent;
1457 printAll( node->types );
1458 --indent;
1459
1460 return node;
1461 }
1462
1463 virtual const ast::Type * visit( const ast::TypeofType * node ) override final {
1464 preprint( node );
1465 if ( node->kind == ast::TypeofType::Basetypeof ) { os << "base-"; }
1466 os << "type-of expression ";
1467 safe_print( node->expr );
1468
1469 return node;
1470 }
1471
1472 virtual const ast::Type * visit( const ast::VTableType * node ) override final {
1473 preprint( node );
1474 os << "vtable for ";
1475 safe_print( node->base );
1476
1477 return node;
1478 }
1479
1480 virtual const ast::Type * visit( const ast::VarArgsType * node ) override final {
1481 preprint( node );
1482 os << "builtin var args pack";
1483 return node;
1484 }
1485
1486 virtual const ast::Type * visit( const ast::ZeroType * node ) override final {
1487 preprint( node );
1488 os << "zero_t";
1489 return node;
1490 }
1491
1492 virtual const ast::Type * visit( const ast::OneType * node ) override final {
1493 preprint( node );
1494 os << "one_t";
1495 return node;
1496 }
1497
1498 virtual const ast::Type * visit( const ast::GlobalScopeType * node ) override final {
1499 preprint( node );
1500 os << "Global Scope Type";
1501 return node;
1502 }
1503
1504 virtual const ast::Designation * visit( const ast::Designation * node ) override final {
1505 if ( node->designators.empty() ) return node;
1506 os << "... designated by: " << endl;
1507 ++indent;
1508 for ( const ast::Expr * d : node->designators ) {
1509 os << indent;
1510 d->accept( *this );
1511 os << endl;
1512 }
1513 --indent;
1514 return node;
1515 }
1516
1517 virtual const ast::Init * visit( const ast::SingleInit * node ) override final {
1518 os << "Simple Initializer: ";
1519 safe_print( node->value );
1520 return node;
1521 }
1522
1523 virtual const ast::Init * visit( const ast::ListInit * node ) override final {
1524 os << "Compound initializer: " << endl;
1525 ++indent;
1526 for ( auto p : group_iterate( node->designations, node->initializers ) ) {
1527 const ast::Designation * d = std::get<0>(p);
1528 const ast::Init * init = std::get<1>(p);
1529 os << indent;
1530 init->accept( *this );
1531 os << endl;
1532 if ( ! d->designators.empty() ) {
1533 os << indent;
1534 d->accept( *this );
1535 }
1536 }
1537 --indent;
1538 return node;
1539 }
1540
1541 virtual const ast::Init * visit( const ast::ConstructorInit * node ) override final {
1542 os << "Constructor initializer: " << endl;
1543 if ( node->ctor ) {
1544 os << indent << "... initially constructed with ";
1545 ++indent;
1546 node->ctor->accept( *this );
1547 --indent;
1548 }
1549
1550 if ( node->dtor ) {
1551 os << indent << "... destructed with ";
1552 ++indent;
1553 node->dtor->accept( *this );
1554 --indent;
1555 }
1556
1557 if ( node->init ) {
1558 os << indent << "... with fallback C-style initializer: ";
1559 ++indent;
1560 node->init->accept( *this );
1561 --indent;
1562 }
1563 return node;
1564 }
1565
1566 virtual const ast::Attribute * visit( const ast::Attribute * node ) override final {
1567 if ( node->empty() ) return node;
1568 os << "Attribute with name: " << node->name;
1569 if ( node->params.empty() ) return node;
1570 os << " with parameters: " << endl;
1571 ++indent;
1572 printAll( node->params );
1573 --indent;
1574 return node;
1575 }
1576
1577 virtual const ast::TypeSubstitution * visit( const ast::TypeSubstitution * node ) override final {
1578 os << indent << "Types:" << endl;
1579 for ( const auto& i : *node ) {
1580 os << indent+1 << i.first.typeString() << " -> ";
1581 indent += 2;
1582 safe_print( i.second );
1583 indent -= 2;
1584 os << endl;
1585 }
1586 return node;
1587 }
1588
1589};
1590
1591void print( ostream & os, const ast::Node * node, Indenter indent ) {
1592 Printer printer { os, indent, false };
1593 node->accept(printer);
1594}
1595
1596void printShort( ostream & os, const ast::Decl * node, Indenter indent ) {
1597 Printer printer { os, indent, true };
1598 node->accept(printer);
1599}
1600
1601// Annoyingly these needed to be defined out of line to avoid undefined references.
1602// The size here needs to be explicit but at least the compiler will produce an error
1603// if the wrong size is specified
1604constexpr array<const char*, 3> Printer::Names::FuncSpecifiers;
1605constexpr array<const char*, 5> Printer::Names::StorageClasses;
1606constexpr array<const char*, 6> Printer::Names::Qualifiers;
1607}
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