source: src/CodeGen/CodeGenerator.cc@ 2e60a1a

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string with_gc
Last change on this file since 2e60a1a was 4040425, checked in by Peter A. Buhr <pabuhr@…>, 10 years ago

change keyword type to otype and context to trait
  • Property mode set to 100644
File size: 20.6 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// CodeGenerator.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Wed Mar 2 17:32:16 2016
13// Update Count : 243
14//
15
16#include <algorithm>
17#include <iostream>
18#include <cassert>
19#include <list>
20
21#include "Parser/ParseNode.h"
22
23#include "SynTree/Type.h"
24#include "SynTree/Expression.h"
25#include "SynTree/Initializer.h"
26#include "SynTree/Statement.h"
27
28#include "Common/utility.h"
29#include "Common/UnimplementedError.h"
30
31#include "CodeGenerator.h"
32#include "OperatorTable.h"
33#include "GenType.h"
34
35using namespace std;
36
37namespace CodeGen {
38 int CodeGenerator::tabsize = 4;
39
40 // the kinds of statements that would ideally be followed by whitespace
41 bool wantSpacing( Statement * stmt) {
42 return dynamic_cast< IfStmt * >( stmt ) || dynamic_cast< CompoundStmt * >( stmt ) ||
43 dynamic_cast< WhileStmt * >( stmt ) || dynamic_cast< ForStmt * > ( stmt ) || dynamic_cast< SwitchStmt *>( stmt );
44 }
45
46 ostream & CodeGenerator::Indenter::operator()( ostream & output ) {
47 return output << string( cg.cur_indent, ' ' );
48 }
49
50 ostream & operator<<( ostream & output, CodeGenerator::Indenter &indent ) {
51 return indent( output );
52 }
53
54 CodeGenerator::CodeGenerator( std::ostream &os ) : indent( *this), cur_indent( 0 ), insideFunction( false ), output( os ) { }
55
56 CodeGenerator::CodeGenerator( std::ostream &os, std::string init, int indentation, bool infunp )
57 : indent( *this), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
58 //output << std::string( init );
59 }
60
61 CodeGenerator::CodeGenerator( std::ostream &os, char *init, int indentation, bool infunp )
62 : indent( *this ), cur_indent( indentation ), insideFunction( infunp ), output( os ) {
63 //output << std::string( init );
64 }
65
66 string mangleName( DeclarationWithType *decl ) {
67 if ( decl->get_mangleName() != "" ) {
68 return decl->get_mangleName();
69 } else {
70 return decl->get_name();
71 } // if
72 }
73
74 //*** Declarations
75 void CodeGenerator::visit( FunctionDecl *functionDecl ) {
76 handleStorageClass( functionDecl );
77 if ( functionDecl->get_isInline() ) {
78 output << "inline ";
79 } // if
80 if ( functionDecl->get_isNoreturn() ) {
81 output << "_Noreturn ";
82 } // if
83 output << genType( functionDecl->get_functionType(), mangleName( functionDecl ) );
84
85 // how to get this to the Functype?
86 std::list< Declaration * > olds = functionDecl->get_oldDecls();
87 if ( ! olds.empty() ) {
88 output << " /* function has old declaration */";
89 } // if
90
91 // acceptAll( functionDecl->get_oldDecls(), *this );
92 if ( functionDecl->get_statements() ) {
93 functionDecl->get_statements()->accept( *this );
94 } // if
95 }
96
97 void CodeGenerator::visit( ObjectDecl *objectDecl ) {
98 handleStorageClass( objectDecl );
99 output << genType( objectDecl->get_type(), mangleName( objectDecl ) );
100
101 if ( objectDecl->get_init() ) {
102 output << " = ";
103 objectDecl->get_init()->accept( *this );
104 } // if
105 if ( objectDecl->get_bitfieldWidth() ) {
106 output << ":";
107 objectDecl->get_bitfieldWidth()->accept( *this );
108 } // if
109 }
110
111 void CodeGenerator::handleAggregate( AggregateDecl *aggDecl ) {
112 if ( aggDecl->get_name() != "" )
113 output << aggDecl->get_name();
114
115 std::list< Declaration * > &memb = aggDecl->get_members();
116
117 if ( ! memb.empty() ) {
118 output << " {" << endl;
119
120 cur_indent += CodeGenerator::tabsize;
121 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
122 output << indent;
123 (*i)->accept( *this );
124 output << ";" << endl;
125 }
126
127 cur_indent -= CodeGenerator::tabsize;
128
129 output << indent << "}";
130 } // if
131 }
132
133 void CodeGenerator::visit( StructDecl *structDecl ) {
134 output << "struct ";
135 handleAggregate( structDecl );
136 }
137
138 void CodeGenerator::visit( UnionDecl *aggregateDecl ) {
139 output << "union ";
140 handleAggregate( aggregateDecl );
141 }
142
143 void CodeGenerator::visit( EnumDecl *aggDecl ) {
144 output << "enum ";
145
146 if ( aggDecl->get_name() != "" )
147 output << aggDecl->get_name();
148
149 std::list< Declaration* > &memb = aggDecl->get_members();
150
151 if ( ! memb.empty() ) {
152 output << " {" << endl;
153
154 cur_indent += CodeGenerator::tabsize;
155 for ( std::list< Declaration* >::iterator i = memb.begin(); i != memb.end(); i++) {
156 ObjectDecl *obj = dynamic_cast< ObjectDecl* >( *i );
157 assert( obj );
158 output << indent << mangleName( obj );
159 if ( obj->get_init() ) {
160 output << " = ";
161 obj->get_init()->accept( *this );
162 } // if
163 output << "," << endl;
164 } // for
165
166 cur_indent -= CodeGenerator::tabsize;
167
168 output << indent << "}";
169 } // if
170 }
171
172 void CodeGenerator::visit( TraitDecl *aggregateDecl ) {}
173
174 void CodeGenerator::visit( TypedefDecl *typeDecl ) {
175 output << "typedef ";
176 output << genType( typeDecl->get_base(), typeDecl->get_name() );
177 }
178
179 void CodeGenerator::visit( TypeDecl *typeDecl ) {
180 // really, we should mutate this into something that isn't a TypeDecl but that requires large-scale changes,
181 // still to be done
182 output << "extern unsigned long " << typeDecl->get_name();
183 if ( typeDecl->get_base() ) {
184 output << " = sizeof( " << genType( typeDecl->get_base(), "" ) << " )";
185 } // if
186 }
187
188 void CodeGenerator::printDesignators( std::list< Expression * > & designators ) {
189 typedef std::list< Expression * > DesignatorList;
190 if ( designators.size() == 0 ) return;
191 for ( DesignatorList::iterator iter = designators.begin(); iter != designators.end(); ++iter ) {
192 if ( dynamic_cast< NameExpr * >( *iter ) ) {
193 // if expression is a name, then initializing aggregate member
194 output << ".";
195 (*iter)->accept( *this );
196 } else {
197 // if not a simple name, it has to be a constant expression, i.e. an array designator
198 output << "[";
199 (*iter)->accept( *this );
200 output << "]";
201 }
202 }
203 output << " = ";
204 }
205
206 void CodeGenerator::visit( SingleInit *init ) {
207 printDesignators( init->get_designators() );
208 init->get_value()->accept( *this );
209 }
210
211 void CodeGenerator::visit( ListInit *init ) {
212 printDesignators( init->get_designators() );
213 output << "{ ";
214 genCommaList( init->begin_initializers(), init->end_initializers() );
215 output << " }";
216 }
217
218 void CodeGenerator::visit( Constant *constant ) {
219 output << constant->get_value() ;
220 }
221
222 //*** Expressions
223 void CodeGenerator::visit( ApplicationExpr *applicationExpr ) {
224 if ( VariableExpr *varExpr = dynamic_cast< VariableExpr* >( applicationExpr->get_function() ) ) {
225 OperatorInfo opInfo;
226 if ( varExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( varExpr->get_var()->get_name(), opInfo ) ) {
227 std::list< Expression* >::iterator arg = applicationExpr->get_args().begin();
228 switch ( opInfo.type ) {
229 case OT_PREFIXASSIGN:
230 case OT_POSTFIXASSIGN:
231 case OT_INFIXASSIGN:
232 {
233 assert( arg != applicationExpr->get_args().end() );
234 if ( AddressExpr *addrExpr = dynamic_cast< AddressExpr * >( *arg ) ) {
235
236 *arg = addrExpr->get_arg();
237 } else {
238 UntypedExpr *newExpr = new UntypedExpr( new NameExpr( "*?" ) );
239 newExpr->get_args().push_back( *arg );
240 *arg = newExpr;
241 } // if
242 break;
243 }
244
245 default:
246 // do nothing
247 ;
248 }
249
250 switch ( opInfo.type ) {
251 case OT_INDEX:
252 assert( applicationExpr->get_args().size() == 2 );
253 (*arg++)->accept( *this );
254 output << "[";
255 (*arg)->accept( *this );
256 output << "]";
257 break;
258
259 case OT_CALL:
260 // there are no intrinsic definitions of the function call operator
261 assert( false );
262 break;
263
264 case OT_PREFIX:
265 case OT_PREFIXASSIGN:
266 assert( applicationExpr->get_args().size() == 1 );
267 output << "(";
268 output << opInfo.symbol;
269 (*arg)->accept( *this );
270 output << ")";
271 break;
272
273 case OT_POSTFIX:
274 case OT_POSTFIXASSIGN:
275 assert( applicationExpr->get_args().size() == 1 );
276 (*arg)->accept( *this );
277 output << opInfo.symbol;
278 break;
279
280 case OT_INFIX:
281 case OT_INFIXASSIGN:
282 assert( applicationExpr->get_args().size() == 2 );
283 output << "(";
284 (*arg++)->accept( *this );
285 output << opInfo.symbol;
286 (*arg)->accept( *this );
287 output << ")";
288 break;
289
290 case OT_CONSTANT:
291 case OT_LABELADDRESS:
292 // there are no intrinsic definitions of 0/1 or label addresses as functions
293 assert( false );
294 }
295 } else {
296 varExpr->accept( *this );
297 output << "(";
298 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
299 output << ")";
300 } // if
301 } else {
302 applicationExpr->get_function()->accept( *this );
303 output << "(";
304 genCommaList( applicationExpr->get_args().begin(), applicationExpr->get_args().end() );
305 output << ")";
306 } // if
307 }
308
309 void CodeGenerator::visit( UntypedExpr *untypedExpr ) {
310 if ( NameExpr *nameExpr = dynamic_cast< NameExpr* >( untypedExpr->get_function() ) ) {
311 OperatorInfo opInfo;
312 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
313 std::list< Expression* >::iterator arg = untypedExpr->get_args().begin();
314 switch ( opInfo.type ) {
315 case OT_INDEX:
316 assert( untypedExpr->get_args().size() == 2 );
317 (*arg++)->accept( *this );
318 output << "[";
319 (*arg)->accept( *this );
320 output << "]";
321 break;
322
323 case OT_CALL:
324 assert( false );
325 break;
326
327 case OT_PREFIX:
328 case OT_PREFIXASSIGN:
329 case OT_LABELADDRESS:
330 assert( untypedExpr->get_args().size() == 1 );
331 output << "(";
332 output << opInfo.symbol;
333 (*arg)->accept( *this );
334 output << ")";
335 break;
336
337 case OT_POSTFIX:
338 case OT_POSTFIXASSIGN:
339 assert( untypedExpr->get_args().size() == 1 );
340 (*arg)->accept( *this );
341 output << opInfo.symbol;
342 break;
343
344 case OT_INFIX:
345 case OT_INFIXASSIGN:
346 assert( untypedExpr->get_args().size() == 2 );
347 output << "(";
348 (*arg++)->accept( *this );
349 output << opInfo.symbol;
350 (*arg)->accept( *this );
351 output << ")";
352 break;
353
354 case OT_CONSTANT:
355 // there are no intrinsic definitions of 0 or 1 as functions
356 assert( false );
357 }
358 } else {
359 nameExpr->accept( *this );
360 output << "(";
361 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
362 output << ")";
363 } // if
364 } else {
365 untypedExpr->get_function()->accept( *this );
366 output << "(";
367 genCommaList( untypedExpr->get_args().begin(), untypedExpr->get_args().end() );
368 output << ")";
369 } // if
370 }
371
372 void CodeGenerator::visit( NameExpr *nameExpr ) {
373 OperatorInfo opInfo;
374 if ( operatorLookup( nameExpr->get_name(), opInfo ) ) {
375 assert( opInfo.type == OT_CONSTANT );
376 output << opInfo.symbol;
377 } else {
378 output << nameExpr->get_name();
379 } // if
380 }
381
382 void CodeGenerator::visit( AddressExpr *addressExpr ) {
383 output << "(&";
384 // this hack makes sure that we don't convert "constant_zero" to "0" if we're taking its address
385 if ( VariableExpr *variableExpr = dynamic_cast< VariableExpr* >( addressExpr->get_arg() ) ) {
386 output << mangleName( variableExpr->get_var() );
387 } else {
388 addressExpr->get_arg()->accept( *this );
389 } // if
390 output << ")";
391 }
392
393 void CodeGenerator::visit( CastExpr *castExpr ) {
394 output << "(";
395 if ( castExpr->get_results().empty() ) {
396 output << "(void)" ;
397 } else if ( ! castExpr->get_results().front()->get_isLvalue() ) {
398 // at least one result type of cast, but not an lvalue
399 output << "(";
400 output << genType( castExpr->get_results().front(), "" );
401 output << ")";
402 } else {
403 // otherwise, the cast is to an lvalue type, so the cast
404 // should be dropped, since the result of a cast is
405 // never an lvalue in C
406 }
407 castExpr->get_arg()->accept( *this );
408 output << ")";
409 }
410
411 void CodeGenerator::visit( UntypedMemberExpr *memberExpr ) {
412 assert( false );
413 }
414
415 void CodeGenerator::visit( MemberExpr *memberExpr ) {
416 memberExpr->get_aggregate()->accept( *this );
417 output << "." << mangleName( memberExpr->get_member() );
418 }
419
420 void CodeGenerator::visit( VariableExpr *variableExpr ) {
421 OperatorInfo opInfo;
422 if ( variableExpr->get_var()->get_linkage() == LinkageSpec::Intrinsic && operatorLookup( variableExpr->get_var()->get_name(), opInfo ) && opInfo.type == OT_CONSTANT ) {
423 output << opInfo.symbol;
424 } else {
425 output << mangleName( variableExpr->get_var() );
426 } // if
427 }
428
429 void CodeGenerator::visit( ConstantExpr *constantExpr ) {
430 assert( constantExpr->get_constant() );
431 constantExpr->get_constant()->accept( *this );
432 }
433
434 void CodeGenerator::visit( SizeofExpr *sizeofExpr ) {
435 output << "sizeof(";
436 if ( sizeofExpr->get_isType() ) {
437 output << genType( sizeofExpr->get_type(), "" );
438 } else {
439 sizeofExpr->get_expr()->accept( *this );
440 } // if
441 output << ")";
442 }
443
444 void CodeGenerator::visit( AlignofExpr *alignofExpr ) {
445 // use GCC extension to avoid bumping std to C11
446 output << "__alignof__(";
447 if ( alignofExpr->get_isType() ) {
448 output << genType( alignofExpr->get_type(), "" );
449 } else {
450 alignofExpr->get_expr()->accept( *this );
451 } // if
452 output << ")";
453 }
454
455 void CodeGenerator::visit( UntypedOffsetofExpr *offsetofExpr ) {
456 assert( false );
457 }
458
459 void CodeGenerator::visit( OffsetofExpr *offsetofExpr ) {
460 // use GCC builtin
461 output << "__builtin_offsetof(";
462 output << genType( offsetofExpr->get_type(), "" );
463 output << ", " << mangleName( offsetofExpr->get_member() );
464 output << ")";
465 }
466
467 void CodeGenerator::visit( LogicalExpr *logicalExpr ) {
468 output << "(";
469 logicalExpr->get_arg1()->accept( *this );
470 if ( logicalExpr->get_isAnd() ) {
471 output << " && ";
472 } else {
473 output << " || ";
474 } // if
475 logicalExpr->get_arg2()->accept( *this );
476 output << ")";
477 }
478
479 void CodeGenerator::visit( ConditionalExpr *conditionalExpr ) {
480 output << "(";
481 conditionalExpr->get_arg1()->accept( *this );
482 output << " ? ";
483 conditionalExpr->get_arg2()->accept( *this );
484 output << " : ";
485 conditionalExpr->get_arg3()->accept( *this );
486 output << ")";
487 }
488
489 void CodeGenerator::visit( CommaExpr *commaExpr ) {
490 output << "(";
491 commaExpr->get_arg1()->accept( *this );
492 output << " , ";
493 commaExpr->get_arg2()->accept( *this );
494 output << ")";
495 }
496
497 void CodeGenerator::visit( TupleExpr *tupleExpr ) {}
498
499 void CodeGenerator::visit( TypeExpr *typeExpr ) {}
500
501 void CodeGenerator::visit( AsmExpr *asmExpr ) {
502 if ( asmExpr->get_inout() ) {
503 output << "[ ";
504 asmExpr->get_inout()->accept( *this );
505 output << " ] ";
506 } // if
507 asmExpr->get_constraint()->accept( *this );
508 output << " ( ";
509 asmExpr->get_operand()->accept( *this );
510 output << " )";
511 }
512
513 //*** Statements
514 void CodeGenerator::visit( CompoundStmt *compoundStmt ) {
515 std::list<Statement*> ks = compoundStmt->get_kids();
516 output << "{" << endl;
517
518 cur_indent += CodeGenerator::tabsize;
519
520 for ( std::list<Statement *>::iterator i = ks.begin(); i != ks.end(); i++ ) {
521 output << indent << printLabels( (*i)->get_labels() );
522 (*i)->accept( *this );
523
524 output << endl;
525 if ( wantSpacing( *i ) ) {
526 output << endl;
527 }
528 }
529 cur_indent -= CodeGenerator::tabsize;
530
531 output << indent << "}";
532 }
533
534 void CodeGenerator::visit( ExprStmt *exprStmt ) {
535 // I don't see why this check is necessary.
536 // If this starts to cause problems then put it back in,
537 // with an explanation
538 assert( exprStmt );
539
540 // if ( exprStmt != 0 ) {
541 exprStmt->get_expr()->accept( *this );
542 output << ";" ;
543 // } // if
544 }
545
546 void CodeGenerator::visit( AsmStmt *asmStmt ) {
547 output << "asm ";
548 if ( asmStmt->get_voltile() ) output << "volatile ";
549 if ( ! asmStmt->get_gotolabels().empty() ) output << "goto ";
550 output << "( ";
551 if ( asmStmt->get_instruction() ) asmStmt->get_instruction()->accept( *this );
552 output << " : ";
553 genCommaList( asmStmt->get_output().begin(), asmStmt->get_output().end() );
554 output << " : ";
555 genCommaList( asmStmt->get_input().begin(), asmStmt->get_input().end() );
556 output << " : ";
557 genCommaList( asmStmt->get_clobber().begin(), asmStmt->get_clobber().end() );
558 if ( ! asmStmt->get_gotolabels().empty() ) {
559 output << " : ";
560 for ( std::list<Label>::iterator begin = asmStmt->get_gotolabels().begin();; ) {
561 output << *begin++;
562 if ( begin == asmStmt->get_gotolabels().end() ) break;
563 output << ", ";
564 } // for
565 } // if
566 output << " );" ;
567 }
568
569 void CodeGenerator::visit( IfStmt *ifStmt ) {
570 output << "if ( ";
571 ifStmt->get_condition()->accept( *this );
572 output << " ) ";
573
574 ifStmt->get_thenPart()->accept( *this );
575
576 if ( ifStmt->get_elsePart() != 0) {
577 output << " else ";
578 ifStmt->get_elsePart()->accept( *this );
579 } // if
580 }
581
582 void CodeGenerator::visit( SwitchStmt *switchStmt ) {
583 output << "switch ( " ;
584 switchStmt->get_condition()->accept( *this );
585 output << " ) ";
586
587 output << "{" << std::endl;
588 cur_indent += CodeGenerator::tabsize;
589
590 acceptAll( switchStmt->get_branches(), *this );
591
592 cur_indent -= CodeGenerator::tabsize;
593
594 output << indent << "}";
595 }
596
597 void CodeGenerator::visit( CaseStmt *caseStmt ) {
598 output << indent;
599 if ( caseStmt->isDefault()) {
600 output << "default";
601 } else {
602 output << "case ";
603 caseStmt->get_condition()->accept( *this );
604 } // if
605 output << ":\n";
606
607 std::list<Statement *> sts = caseStmt->get_statements();
608
609 cur_indent += CodeGenerator::tabsize;
610 for ( std::list<Statement *>::iterator i = sts.begin(); i != sts.end(); i++) {
611 output << indent << printLabels( (*i)->get_labels() ) ;
612 (*i)->accept( *this );
613 output << endl;
614 }
615 cur_indent -= CodeGenerator::tabsize;
616 }
617
618 void CodeGenerator::visit( BranchStmt *branchStmt ) {
619 switch ( branchStmt->get_type()) {
620 case BranchStmt::Goto:
621 if ( ! branchStmt->get_target().empty() )
622 output << "goto " << branchStmt->get_target();
623 else {
624 if ( branchStmt->get_computedTarget() != 0 ) {
625 output << "goto *";
626 branchStmt->get_computedTarget()->accept( *this );
627 } // if
628 } // if
629 break;
630 case BranchStmt::Break:
631 output << "break";
632 break;
633 case BranchStmt::Continue:
634 output << "continue";
635 break;
636 }
637 output << ";";
638 }
639
640
641 void CodeGenerator::visit( ReturnStmt *returnStmt ) {
642 output << "return ";
643
644 // xxx -- check for null expression;
645 if ( returnStmt->get_expr() ) {
646 returnStmt->get_expr()->accept( *this );
647 } // if
648 output << ";";
649 }
650
651 void CodeGenerator::visit( WhileStmt *whileStmt ) {
652 if ( whileStmt->get_isDoWhile() )
653 output << "do" ;
654 else {
655 output << "while (" ;
656 whileStmt->get_condition()->accept( *this );
657 output << ")";
658 } // if
659 output << " ";
660
661 output << CodeGenerator::printLabels( whileStmt->get_body()->get_labels() );
662 whileStmt->get_body()->accept( *this );
663
664 output << indent;
665
666 if ( whileStmt->get_isDoWhile() ) {
667 output << " while (" ;
668 whileStmt->get_condition()->accept( *this );
669 output << ");";
670 } // if
671 }
672
673 void CodeGenerator::visit( ForStmt *forStmt ) {
674 // initialization is always hoisted, so don't
675 // bother doing anything with that
676 output << "for (;";
677
678 if ( forStmt->get_condition() != 0 )
679 forStmt->get_condition()->accept( *this );
680 output << ";";
681
682 if ( forStmt->get_increment() != 0 )
683 forStmt->get_increment()->accept( *this );
684 output << ") ";
685
686 if ( forStmt->get_body() != 0 ) {
687 output << CodeGenerator::printLabels( forStmt->get_body()->get_labels() );
688 forStmt->get_body()->accept( *this );
689 } // if
690 }
691
692 void CodeGenerator::visit( NullStmt *nullStmt ) {
693 //output << indent << CodeGenerator::printLabels( nullStmt->get_labels() );
694 output << "/* null statement */ ;";
695 }
696
697 void CodeGenerator::visit( DeclStmt *declStmt ) {
698 declStmt->get_decl()->accept( *this );
699
700 if ( doSemicolon( declStmt->get_decl() ) ) {
701 output << ";";
702 } // if
703 }
704
705 std::string CodeGenerator::printLabels( std::list< Label > &l ) {
706 std::string str( "" );
707 l.unique(); // assumes a sorted list. Why not use set?
708
709 for ( std::list< Label >::iterator i = l.begin(); i != l.end(); i++ )
710 str += *i + ": ";
711
712 return str;
713 }
714
715 void CodeGenerator::handleStorageClass( Declaration *decl ) {
716 switch ( decl->get_storageClass() ) {
717 case DeclarationNode::Extern:
718 output << "extern ";
719 break;
720 case DeclarationNode::Static:
721 output << "static ";
722 break;
723 case DeclarationNode::Auto:
724 // silently drop storage class
725 break;
726 case DeclarationNode::Register:
727 output << "register ";
728 break;
729 case DeclarationNode::Inline:
730 output << "inline ";
731 break;
732 case DeclarationNode::Fortran:
733 output << "fortran ";
734 break;
735 case DeclarationNode::Noreturn:
736 output << "_Noreturn ";
737 break;
738 case DeclarationNode::Threadlocal:
739 output << "_Thread_local ";
740 break;
741 case DeclarationNode::NoStorageClass:
742 break;
743 } // switch
744 }
745} // namespace CodeGen
746
747// Local Variables: //
748// tab-width: 4 //
749// mode: c++ //
750// compile-command: "make install" //
751// End: //
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