source: src/Parser/DeclarationNode.cc@ ab904dc

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors deferred_resn demangler enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new with_gc
Last change on this file since ab904dc was 67cf18c, checked in by Rob Schluntz <rschlunt@…>, 8 years ago

implement default type arguments for generic types [closes #13]
  • Property mode set to 100644
File size: 34.1 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// DeclarationNode.cc --
8//
9// Author : Rodolfo G. Esteves
10// Created On : Sat May 16 12:34:05 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Fri Mar 17 15:46:33 2017
13// Update Count : 1018
14//
15
16#include <string>
17#include <list>
18#include <iterator>
19#include <algorithm>
20#include <cassert>
21
22#include "TypeData.h"
23
24#include "SynTree/Attribute.h"
25#include "SynTree/Declaration.h"
26#include "SynTree/Expression.h"
27
28#include "TypedefTable.h"
29extern TypedefTable typedefTable;
30
31using namespace std;
32
33// These must remain in the same order as the corresponding DeclarationNode enumerations.
34const char * DeclarationNode::basicTypeNames[] = { "void", "_Bool", "char", "int", "float", "double", "long double", "NoBasicTypeNames" };
35const char * DeclarationNode::complexTypeNames[] = { "_Complex", "_Imaginary", "NoComplexTypeNames" };
36const char * DeclarationNode::signednessNames[] = { "signed", "unsigned", "NoSignednessNames" };
37const char * DeclarationNode::lengthNames[] = { "short", "long", "long long", "NoLengthNames" };
38const char * DeclarationNode::aggregateNames[] = { "struct", "union", "trait", "coroutine", "monitor", "thread", "NoAggregateNames" };
39const char * DeclarationNode::typeClassNames[] = { "otype", "dtype", "ftype", "NoTypeClassNames" };
40const char * DeclarationNode::builtinTypeNames[] = { "__builtin_va_list", "NoBuiltinTypeNames" };
41
42UniqueName DeclarationNode::anonymous( "__anonymous" );
43
44extern LinkageSpec::Spec linkage; // defined in parser.yy
45
46DeclarationNode::DeclarationNode() :
47 type( nullptr ),
48 bitfieldWidth( nullptr ),
49 hasEllipsis( false ),
50 linkage( ::linkage ),
51 asmName( nullptr ),
52 initializer( nullptr ),
53 extension( false ),
54 asmStmt( nullptr ) {
55
56// variable.name = nullptr;
57 variable.tyClass = NoTypeClass;
58 variable.assertions = nullptr;
59 variable.initializer = nullptr;
60
61// attr.name = nullptr;
62 attr.expr = nullptr;
63 attr.type = nullptr;
64}
65
66DeclarationNode::~DeclarationNode() {
67// delete attr.name;
68 delete attr.expr;
69 delete attr.type;
70
71// delete variable.name;
72 delete variable.assertions;
73 delete variable.initializer;
74
75 delete type;
76 delete bitfieldWidth;
77
78 delete asmStmt;
79 // asmName, no delete, passed to next stage
80 delete initializer;
81}
82
83DeclarationNode * DeclarationNode::clone() const {
84 DeclarationNode * newnode = new DeclarationNode;
85 newnode->set_next( maybeClone( get_next() ) );
86 newnode->name = name ? new string( *name ) : nullptr;
87
88 newnode->type = maybeClone( type );
89 newnode->storageClasses = storageClasses;
90 newnode->funcSpecs = funcSpecs;
91 newnode->bitfieldWidth = maybeClone( bitfieldWidth );
92 newnode->enumeratorValue.reset( maybeClone( enumeratorValue.get() ) );
93 newnode->hasEllipsis = hasEllipsis;
94 newnode->linkage = linkage;
95 newnode->asmName = maybeClone( asmName );
96 cloneAll( attributes, newnode->attributes );
97 newnode->initializer = maybeClone( initializer );
98 newnode->extension = extension;
99 newnode->asmStmt = maybeClone( asmStmt );
100 newnode->error = error;
101
102// newnode->variable.name = variable.name ? new string( *variable.name ) : nullptr;
103 newnode->variable.tyClass = variable.tyClass;
104 newnode->variable.assertions = maybeClone( variable.assertions );
105 newnode->variable.initializer = maybeClone( variable.initializer );
106
107// newnode->attr.name = attr.name ? new string( *attr.name ) : nullptr;
108 newnode->attr.expr = maybeClone( attr.expr );
109 newnode->attr.type = maybeClone( attr.type );
110 return newnode;
111} // DeclarationNode::clone
112
113bool DeclarationNode::get_hasEllipsis() const {
114 return hasEllipsis;
115}
116
117void DeclarationNode::print( std::ostream &os, int indent ) const {
118 os << string( indent, ' ' );
119 if ( name ) {
120 os << *name << ": ";
121 } else {
122 os << "unnamed: ";
123 } // if
124
125 if ( linkage != LinkageSpec::Cforall ) {
126 os << LinkageSpec::linkageName( linkage ) << " ";
127 } // if
128
129 storageClasses.print( os );
130 funcSpecs.print( os );
131
132 if ( type ) {
133 type->print( os, indent );
134 } else {
135 os << "untyped entity ";
136 } // if
137
138 if ( bitfieldWidth ) {
139 os << endl << string( indent + 2, ' ' ) << "with bitfield width ";
140 bitfieldWidth->printOneLine( os );
141 } // if
142
143 if ( initializer ) {
144 os << endl << string( indent + 2, ' ' ) << "with initializer ";
145 initializer->printOneLine( os );
146 os << " maybe constructed? " << initializer->get_maybeConstructed();
147
148 } // if
149
150 os << endl;
151}
152
153void DeclarationNode::printList( std::ostream &os, int indent ) const {
154 ParseNode::printList( os, indent );
155 if ( hasEllipsis ) {
156 os << string( indent, ' ' ) << "and a variable number of other arguments" << endl;
157 } // if
158}
159
160DeclarationNode * DeclarationNode::newFunction( string * name, DeclarationNode * ret, DeclarationNode * param, StatementNode * body, bool newStyle ) {
161 DeclarationNode * newnode = new DeclarationNode;
162 newnode->name = name;
163 newnode->type = new TypeData( TypeData::Function );
164 newnode->type->function.params = param;
165 newnode->type->function.newStyle = newStyle;
166 newnode->type->function.body = body;
167
168 // ignore unnamed routine declarations: void p( int (*)(int) );
169 if ( newnode->name ) {
170 typedefTable.addToEnclosingScope( *newnode->name, TypedefTable::ID );
171 } // if
172
173 if ( ret ) {
174 newnode->type->base = ret->type;
175 ret->type = nullptr;
176 delete ret;
177 } // if
178
179 return newnode;
180} // DeclarationNode::newFunction
181
182
183DeclarationNode * DeclarationNode::newStorageClass( Type::StorageClasses sc ) {
184 DeclarationNode * newnode = new DeclarationNode;
185 newnode->storageClasses = sc;
186 return newnode;
187} // DeclarationNode::newStorageClass
188
189DeclarationNode * DeclarationNode::newFuncSpecifier( Type::FuncSpecifiers fs ) {
190 DeclarationNode * newnode = new DeclarationNode;
191 newnode->funcSpecs = fs;
192 return newnode;
193} // DeclarationNode::newFuncSpecifier
194
195DeclarationNode * DeclarationNode::newTypeQualifier( Type::Qualifiers tq ) {
196 DeclarationNode * newnode = new DeclarationNode;
197 newnode->type = new TypeData();
198 newnode->type->qualifiers = tq;
199 return newnode;
200} // DeclarationNode::newQualifier
201
202DeclarationNode * DeclarationNode::newBasicType( BasicType bt ) {
203 DeclarationNode * newnode = new DeclarationNode;
204 newnode->type = new TypeData( TypeData::Basic );
205 newnode->type->basictype = bt;
206 return newnode;
207} // DeclarationNode::newBasicType
208
209DeclarationNode * DeclarationNode::newComplexType( ComplexType ct ) {
210 DeclarationNode * newnode = new DeclarationNode;
211 newnode->type = new TypeData( TypeData::Basic );
212 newnode->type->complextype = ct;
213 return newnode;
214} // DeclarationNode::newComplexType
215
216DeclarationNode * DeclarationNode::newSignedNess( Signedness sn ) {
217 DeclarationNode * newnode = new DeclarationNode;
218 newnode->type = new TypeData( TypeData::Basic );
219 newnode->type->signedness = sn;
220 return newnode;
221} // DeclarationNode::newSignedNess
222
223DeclarationNode * DeclarationNode::newLength( Length lnth ) {
224 DeclarationNode * newnode = new DeclarationNode;
225 newnode->type = new TypeData( TypeData::Basic );
226 newnode->type->length = lnth;
227 return newnode;
228} // DeclarationNode::newLength
229
230DeclarationNode * DeclarationNode::newForall( DeclarationNode * forall ) {
231 DeclarationNode * newnode = new DeclarationNode;
232 newnode->type = new TypeData( TypeData::Unknown );
233 newnode->type->forall = forall;
234 return newnode;
235} // DeclarationNode::newForall
236
237DeclarationNode * DeclarationNode::newFromTypedef( string * name ) {
238 DeclarationNode * newnode = new DeclarationNode;
239 newnode->type = new TypeData( TypeData::SymbolicInst );
240 newnode->type->symbolic.name = name;
241 newnode->type->symbolic.isTypedef = true;
242 newnode->type->symbolic.params = nullptr;
243 return newnode;
244} // DeclarationNode::newFromTypedef
245
246DeclarationNode * DeclarationNode::newAggregate( Aggregate kind, const string * name, ExpressionNode * actuals, DeclarationNode * fields, bool body ) {
247 assert( name );
248 DeclarationNode * newnode = new DeclarationNode;
249 newnode->type = new TypeData( TypeData::Aggregate );
250 newnode->type->aggregate.kind = kind;
251 newnode->type->aggregate.name = name;
252 newnode->type->aggregate.actuals = actuals;
253 newnode->type->aggregate.fields = fields;
254 newnode->type->aggregate.body = body;
255 return newnode;
256} // DeclarationNode::newAggregate
257
258DeclarationNode * DeclarationNode::newEnum( string * name, DeclarationNode * constants, bool body ) {
259 assert( name );
260 DeclarationNode * newnode = new DeclarationNode;
261 newnode->type = new TypeData( TypeData::Enum );
262 newnode->type->enumeration.name = name;
263 newnode->type->enumeration.constants = constants;
264 newnode->type->enumeration.body = body;
265 return newnode;
266} // DeclarationNode::newEnum
267
268DeclarationNode * DeclarationNode::newEnumConstant( string * name, ExpressionNode * constant ) {
269 DeclarationNode * newnode = new DeclarationNode;
270 newnode->name = name;
271 newnode->enumeratorValue.reset( constant );
272 typedefTable.addToEnclosingScope( *newnode->name, TypedefTable::ID );
273 return newnode;
274} // DeclarationNode::newEnumConstant
275
276DeclarationNode * DeclarationNode::newName( string * name ) {
277 DeclarationNode * newnode = new DeclarationNode;
278 newnode->name = name;
279 return newnode;
280} // DeclarationNode::newName
281
282DeclarationNode * DeclarationNode::newFromTypeGen( string * name, ExpressionNode * params ) {
283 DeclarationNode * newnode = new DeclarationNode;
284 newnode->type = new TypeData( TypeData::SymbolicInst );
285 newnode->type->symbolic.name = name;
286 newnode->type->symbolic.isTypedef = false;
287 newnode->type->symbolic.actuals = params;
288 return newnode;
289} // DeclarationNode::newFromTypeGen
290
291DeclarationNode * DeclarationNode::newTypeParam( TypeClass tc, string * name ) {
292 DeclarationNode * newnode = new DeclarationNode;
293 newnode->type = nullptr;
294 assert( ! newnode->name );
295// newnode->variable.name = name;
296 newnode->name = name;
297 newnode->variable.tyClass = tc;
298 newnode->variable.assertions = nullptr;
299 return newnode;
300} // DeclarationNode::newTypeParam
301
302DeclarationNode * DeclarationNode::newTrait( const string * name, DeclarationNode * params, DeclarationNode * asserts ) {
303 DeclarationNode * newnode = new DeclarationNode;
304 newnode->type = new TypeData( TypeData::Aggregate );
305 newnode->type->aggregate.name = name;
306 newnode->type->aggregate.kind = Trait;
307 newnode->type->aggregate.params = params;
308 newnode->type->aggregate.fields = asserts;
309 return newnode;
310} // DeclarationNode::newTrait
311
312DeclarationNode * DeclarationNode::newTraitUse( const string * name, ExpressionNode * params ) {
313 DeclarationNode * newnode = new DeclarationNode;
314 newnode->type = new TypeData( TypeData::AggregateInst );
315 newnode->type->aggInst.aggregate = new TypeData( TypeData::Aggregate );
316 newnode->type->aggInst.aggregate->aggregate.kind = Trait;
317 newnode->type->aggInst.aggregate->aggregate.name = name;
318 newnode->type->aggInst.params = params;
319 return newnode;
320} // DeclarationNode::newTraitUse
321
322DeclarationNode * DeclarationNode::newTypeDecl( string * name, DeclarationNode * typeParams ) {
323 DeclarationNode * newnode = new DeclarationNode;
324 newnode->type = new TypeData( TypeData::Symbolic );
325 newnode->type->symbolic.isTypedef = false;
326 newnode->type->symbolic.params = typeParams;
327 newnode->type->symbolic.name = name;
328 return newnode;
329} // DeclarationNode::newTypeDecl
330
331DeclarationNode * DeclarationNode::newPointer( DeclarationNode * qualifiers ) {
332 DeclarationNode * newnode = new DeclarationNode;
333 newnode->type = new TypeData( TypeData::Pointer );
334 if ( qualifiers ) {
335 return newnode->addQualifiers( qualifiers );
336 } else {
337 return newnode;
338 } // if
339} // DeclarationNode::newPointer
340
341DeclarationNode * DeclarationNode::newArray( ExpressionNode * size, DeclarationNode * qualifiers, bool isStatic ) {
342 DeclarationNode * newnode = new DeclarationNode;
343 newnode->type = new TypeData( TypeData::Array );
344 newnode->type->array.dimension = size;
345 newnode->type->array.isStatic = isStatic;
346 if ( newnode->type->array.dimension == nullptr || newnode->type->array.dimension->isExpressionType<ConstantExpr * >() ) {
347 newnode->type->array.isVarLen = false;
348 } else {
349 newnode->type->array.isVarLen = true;
350 } // if
351 return newnode->addQualifiers( qualifiers );
352} // DeclarationNode::newArray
353
354DeclarationNode * DeclarationNode::newVarArray( DeclarationNode * qualifiers ) {
355 DeclarationNode * newnode = new DeclarationNode;
356 newnode->type = new TypeData( TypeData::Array );
357 newnode->type->array.dimension = nullptr;
358 newnode->type->array.isStatic = false;
359 newnode->type->array.isVarLen = true;
360 return newnode->addQualifiers( qualifiers );
361}
362
363DeclarationNode * DeclarationNode::newBitfield( ExpressionNode * size ) {
364 DeclarationNode * newnode = new DeclarationNode;
365 newnode->bitfieldWidth = size;
366 return newnode;
367}
368
369DeclarationNode * DeclarationNode::newTuple( DeclarationNode * members ) {
370 DeclarationNode * newnode = new DeclarationNode;
371 newnode->type = new TypeData( TypeData::Tuple );
372 newnode->type->tuple = members;
373 return newnode;
374}
375
376DeclarationNode * DeclarationNode::newTypeof( ExpressionNode * expr ) {
377 DeclarationNode * newnode = new DeclarationNode;
378 newnode->type = new TypeData( TypeData::Typeof );
379 newnode->type->typeexpr = expr;
380 return newnode;
381}
382
383DeclarationNode * DeclarationNode::newBuiltinType( BuiltinType bt ) {
384 DeclarationNode * newnode = new DeclarationNode;
385 newnode->type = new TypeData( TypeData::Builtin );
386 newnode->builtin = bt;
387 newnode->type->builtintype = newnode->builtin;
388 return newnode;
389} // DeclarationNode::newBuiltinType
390
391DeclarationNode * DeclarationNode::newAttr( string * name, ExpressionNode * expr ) {
392 DeclarationNode * newnode = new DeclarationNode;
393 newnode->type = nullptr;
394// newnode->attr.name = name;
395 newnode->name = name;
396 newnode->attr.expr = expr;
397 return newnode;
398}
399
400DeclarationNode * DeclarationNode::newAttr( string * name, DeclarationNode * type ) {
401 DeclarationNode * newnode = new DeclarationNode;
402 newnode->type = nullptr;
403// newnode->attr.name = name;
404 newnode->name = name;
405 newnode->attr.type = type;
406 return newnode;
407}
408
409DeclarationNode * DeclarationNode::newAttribute( string * name, ExpressionNode * expr ) {
410 DeclarationNode * newnode = new DeclarationNode;
411 newnode->type = nullptr;
412 std::list< Expression * > exprs;
413 buildList( expr, exprs );
414 newnode->attributes.push_back( new Attribute( *name, exprs ) );
415 delete name;
416 return newnode;
417}
418
419DeclarationNode * DeclarationNode::newAsmStmt( StatementNode * stmt ) {
420 DeclarationNode * newnode = new DeclarationNode;
421 newnode->asmStmt = stmt;
422 return newnode;
423}
424
425void appendError( string & dst, const string & src ) {
426 if ( src.empty() ) return;
427 if ( dst.empty() ) { dst = src; return; }
428 dst += ", " + src;
429} // appendError
430
431void DeclarationNode::checkQualifiers( const TypeData * src, const TypeData * dst ) {
432 const Type::Qualifiers qsrc = src->qualifiers, qdst = dst->qualifiers; // optimization
433
434 if ( (qsrc & qdst).any() ) { // duplicates ?
435 for ( unsigned int i = 0; i < Type::NumTypeQualifier; i += 1 ) { // find duplicates
436 if ( qsrc[i] && qdst[i] ) {
437 appendError( error, string( "duplicate " ) + Type::QualifiersNames[i] );
438 } // if
439 } // for
440 } // for
441} // DeclarationNode::checkQualifiers
442
443void DeclarationNode::checkSpecifiers( DeclarationNode * src ) {
444 if ( (funcSpecs & src->funcSpecs).any() ) { // duplicates ?
445 for ( unsigned int i = 0; i < Type::NumFuncSpecifier; i += 1 ) { // find duplicates
446 if ( funcSpecs[i] && src->funcSpecs[i] ) {
447 appendError( error, string( "duplicate " ) + Type::FuncSpecifiersNames[i] );
448 } // if
449 } // for
450 } // if
451
452 if ( storageClasses.any() && src->storageClasses.any() ) { // any reason to check ?
453 if ( (storageClasses & src->storageClasses ).any() ) { // duplicates ?
454 for ( unsigned int i = 0; i < Type::NumStorageClass; i += 1 ) { // find duplicates
455 if ( storageClasses[i] && src->storageClasses[i] ) {
456 appendError( error, string( "duplicate " ) + Type::StorageClassesNames[i] );
457 } // if
458 } // for
459 // src is the new item being added and has a single bit
460 } else if ( ! src->storageClasses.is_threadlocal ) { // conflict ?
461 appendError( error, string( "conflicting " ) + Type::StorageClassesNames[storageClasses.ffs()] +
462 " & " + Type::StorageClassesNames[src->storageClasses.ffs()] );
463 src->storageClasses.reset(); // FIX to preserve invariant of one basic storage specifier
464 } // if
465 } // if
466
467 appendError( error, src->error );
468} // DeclarationNode::checkSpecifiers
469
470DeclarationNode * DeclarationNode::copySpecifiers( DeclarationNode * q ) {
471 funcSpecs |= q->funcSpecs;
472 storageClasses |= q->storageClasses;
473
474 for ( Attribute *attr: reverseIterate( q->attributes ) ) {
475 attributes.push_front( attr->clone() );
476 } // for
477 return this;
478} // DeclarationNode::copySpecifiers
479
480static void addQualifiersToType( TypeData *&src, TypeData * dst ) {
481 if ( src->forall && dst->kind == TypeData::Function ) {
482 if ( dst->forall ) {
483 dst->forall->appendList( src->forall );
484 } else {
485 dst->forall = src->forall;
486 } // if
487 src->forall = nullptr;
488 } // if
489 if ( dst->base ) {
490 addQualifiersToType( src, dst->base );
491 } else if ( dst->kind == TypeData::Function ) {
492 dst->base = src;
493 src = nullptr;
494 } else {
495 dst->qualifiers |= src->qualifiers;
496 } // if
497} // addQualifiersToType
498
499DeclarationNode * DeclarationNode::addQualifiers( DeclarationNode * q ) {
500 if ( ! q ) { delete q; return this; }
501
502 checkSpecifiers( q );
503 copySpecifiers( q );
504
505 if ( ! q->type ) {
506 delete q;
507 return this;
508 } // if
509
510 if ( ! type ) {
511 type = q->type; // reuse this structure
512 q->type = nullptr;
513 delete q;
514 return this;
515 } // if
516
517 if ( q->type->forall ) {
518 if ( type->forall ) {
519 type->forall->appendList( q->type->forall );
520 } else {
521 if ( type->kind == TypeData::Aggregate ) {
522 type->aggregate.params = q->type->forall;
523 // change implicit typedef from TYPEDEFname to TYPEGENname
524 typedefTable.changeKind( *type->aggregate.name, TypedefTable::TG );
525 } else {
526 type->forall = q->type->forall;
527 } // if
528 } // if
529 q->type->forall = nullptr;
530 } // if
531
532 checkQualifiers( type, q->type );
533 addQualifiersToType( q->type, type );
534
535 delete q;
536 return this;
537} // addQualifiers
538
539static void addTypeToType( TypeData *&src, TypeData *&dst ) {
540 if ( src->forall && dst->kind == TypeData::Function ) {
541 if ( dst->forall ) {
542 dst->forall->appendList( src->forall );
543 } else {
544 dst->forall = src->forall;
545 } // if
546 src->forall = nullptr;
547 } // if
548 if ( dst->base ) {
549 addTypeToType( src, dst->base );
550 } else {
551 switch ( dst->kind ) {
552 case TypeData::Unknown:
553 src->qualifiers |= dst->qualifiers;
554 dst = src;
555 src = nullptr;
556 break;
557 case TypeData::Basic:
558 dst->qualifiers |= src->qualifiers;
559 if ( src->kind != TypeData::Unknown ) {
560 assert( src->kind == TypeData::Basic );
561
562 if ( dst->basictype == DeclarationNode::NoBasicType ) {
563 dst->basictype = src->basictype;
564 } else if ( src->basictype != DeclarationNode::NoBasicType )
565 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::basicTypeNames[ src->basictype ] + " in type: ", src );
566
567 if ( dst->complextype == DeclarationNode::NoComplexType ) {
568 dst->complextype = src->complextype;
569 } else if ( src->complextype != DeclarationNode::NoComplexType )
570 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::complexTypeNames[ src->complextype ] + " in type: ", src );
571
572 if ( dst->signedness == DeclarationNode::NoSignedness ) {
573 dst->signedness = src->signedness;
574 } else if ( src->signedness != DeclarationNode::NoSignedness )
575 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::signednessNames[ src->signedness ] + " in type: ", src );
576
577 if ( dst->length == DeclarationNode::NoLength ) {
578 dst->length = src->length;
579 } else if ( dst->length == DeclarationNode::Long && src->length == DeclarationNode::Long ) {
580 dst->length = DeclarationNode::LongLong;
581 } else if ( src->length != DeclarationNode::NoLength )
582 throw SemanticError( string( "conflicting type specifier " ) + DeclarationNode::lengthNames[ src->length ] + " in type: ", src );
583 } // if
584 break;
585 default:
586 switch ( src->kind ) {
587 case TypeData::Aggregate:
588 case TypeData::Enum:
589 dst->base = new TypeData( TypeData::AggregateInst );
590 dst->base->aggInst.aggregate = src;
591 if ( src->kind == TypeData::Aggregate ) {
592 dst->base->aggInst.params = maybeClone( src->aggregate.actuals );
593 } // if
594 dst->base->qualifiers |= src->qualifiers;
595 src = nullptr;
596 break;
597 default:
598 if ( dst->forall ) {
599 dst->forall->appendList( src->forall );
600 } else {
601 dst->forall = src->forall;
602 } // if
603 src->forall = nullptr;
604 dst->base = src;
605 src = nullptr;
606 } // switch
607 } // switch
608 } // if
609}
610
611DeclarationNode * DeclarationNode::addType( DeclarationNode * o ) {
612 if ( o ) {
613 checkSpecifiers( o );
614 copySpecifiers( o );
615 if ( o->type ) {
616 if ( ! type ) {
617 if ( o->type->kind == TypeData::Aggregate || o->type->kind == TypeData::Enum ) {
618 type = new TypeData( TypeData::AggregateInst );
619 type->aggInst.aggregate = o->type;
620 if ( o->type->kind == TypeData::Aggregate ) {
621 type->aggInst.hoistType = o->type->aggregate.body;
622 type->aggInst.params = maybeClone( o->type->aggregate.actuals );
623 } else {
624 type->aggInst.hoistType = o->type->enumeration.body;
625 } // if
626 type->qualifiers |= o->type->qualifiers;
627 } else {
628 type = o->type;
629 } // if
630 o->type = nullptr;
631 } else {
632 addTypeToType( o->type, type );
633 } // if
634 } // if
635 if ( o->bitfieldWidth ) {
636 bitfieldWidth = o->bitfieldWidth;
637 } // if
638
639 // there may be typedefs chained onto the type
640 if ( o->get_next() ) {
641 set_last( o->get_next()->clone() );
642 } // if
643 } // if
644 delete o;
645 return this;
646}
647
648DeclarationNode * DeclarationNode::addTypedef() {
649 TypeData * newtype = new TypeData( TypeData::Symbolic );
650 newtype->symbolic.params = nullptr;
651 newtype->symbolic.isTypedef = true;
652 newtype->symbolic.name = name ? new string( *name ) : nullptr;
653 newtype->base = type;
654 type = newtype;
655 return this;
656}
657
658DeclarationNode * DeclarationNode::addAssertions( DeclarationNode * assertions ) {
659 if ( variable.tyClass != NoTypeClass ) {
660 if ( variable.assertions ) {
661 variable.assertions->appendList( assertions );
662 } else {
663 variable.assertions = assertions;
664 } // if
665 return this;
666 } // if
667
668 assert( type );
669 switch ( type->kind ) {
670 case TypeData::Symbolic:
671 if ( type->symbolic.assertions ) {
672 type->symbolic.assertions->appendList( assertions );
673 } else {
674 type->symbolic.assertions = assertions;
675 } // if
676 break;
677 default:
678 assert( false );
679 } // switch
680
681 return this;
682}
683
684DeclarationNode * DeclarationNode::addName( string * newname ) {
685 assert( ! name );
686 name = newname;
687 return this;
688}
689
690DeclarationNode * DeclarationNode::addAsmName( DeclarationNode * newname ) {
691 assert( ! asmName );
692 asmName = newname ? newname->asmName : nullptr;
693 return this->addQualifiers( newname );
694}
695
696DeclarationNode * DeclarationNode::addBitfield( ExpressionNode * size ) {
697 bitfieldWidth = size;
698 return this;
699}
700
701DeclarationNode * DeclarationNode::addVarArgs() {
702 assert( type );
703 hasEllipsis = true;
704 return this;
705}
706
707DeclarationNode * DeclarationNode::addFunctionBody( StatementNode * body ) {
708 assert( type );
709 assert( type->kind == TypeData::Function );
710 assert( ! type->function.body );
711 type->function.body = body;
712 return this;
713}
714
715DeclarationNode * DeclarationNode::addOldDeclList( DeclarationNode * list ) {
716 assert( type );
717 assert( type->kind == TypeData::Function );
718 assert( ! type->function.oldDeclList );
719 type->function.oldDeclList = list;
720 return this;
721}
722
723DeclarationNode * DeclarationNode::setBase( TypeData * newType ) {
724 if ( type ) {
725 TypeData * prevBase = type;
726 TypeData * curBase = type->base;
727 while ( curBase != nullptr ) {
728 prevBase = curBase;
729 curBase = curBase->base;
730 } // while
731 prevBase->base = newType;
732 } else {
733 type = newType;
734 } // if
735 return this;
736}
737
738DeclarationNode * DeclarationNode::copyAttribute( DeclarationNode * a ) {
739 if ( a ) {
740 for ( Attribute *attr: reverseIterate( a->attributes ) ) {
741 attributes.push_front( attr );
742 } // for
743 a->attributes.clear();
744 } // if
745 return this;
746} // copyAttribute
747
748DeclarationNode * DeclarationNode::addPointer( DeclarationNode * p ) {
749 if ( p ) {
750 assert( p->type->kind == TypeData::Pointer );
751 setBase( p->type );
752 p->type = nullptr;
753 copyAttribute( p );
754 delete p;
755 } // if
756 return this;
757}
758
759DeclarationNode * DeclarationNode::addArray( DeclarationNode * a ) {
760 if ( a ) {
761 assert( a->type->kind == TypeData::Array );
762 setBase( a->type );
763 a->type = nullptr;
764 copyAttribute( a );
765 delete a;
766 } // if
767 return this;
768}
769
770DeclarationNode * DeclarationNode::addNewPointer( DeclarationNode * p ) {
771 if ( p ) {
772 assert( p->type->kind == TypeData::Pointer );
773 if ( type ) {
774 switch ( type->kind ) {
775 case TypeData::Aggregate:
776 case TypeData::Enum:
777 p->type->base = new TypeData( TypeData::AggregateInst );
778 p->type->base->aggInst.aggregate = type;
779 if ( type->kind == TypeData::Aggregate ) {
780 p->type->base->aggInst.params = maybeClone( type->aggregate.actuals );
781 } // if
782 p->type->base->qualifiers |= type->qualifiers;
783 break;
784
785 default:
786 p->type->base = type;
787 } // switch
788 type = nullptr;
789 } // if
790 delete this;
791 return p;
792 } else {
793 return this;
794 } // if
795}
796
797static TypeData * findLast( TypeData * a ) {
798 assert( a );
799 TypeData * cur = a;
800 while ( cur->base ) {
801 cur = cur->base;
802 } // while
803 return cur;
804}
805
806DeclarationNode * DeclarationNode::addNewArray( DeclarationNode * a ) {
807 if ( ! a ) return this;
808 assert( a->type->kind == TypeData::Array );
809 TypeData * lastArray = findLast( a->type );
810 if ( type ) {
811 switch ( type->kind ) {
812 case TypeData::Aggregate:
813 case TypeData::Enum:
814 lastArray->base = new TypeData( TypeData::AggregateInst );
815 lastArray->base->aggInst.aggregate = type;
816 if ( type->kind == TypeData::Aggregate ) {
817 lastArray->base->aggInst.params = maybeClone( type->aggregate.actuals );
818 } // if
819 lastArray->base->qualifiers |= type->qualifiers;
820 break;
821 default:
822 lastArray->base = type;
823 } // switch
824 type = nullptr;
825 } // if
826 delete this;
827 return a;
828}
829
830DeclarationNode * DeclarationNode::addParamList( DeclarationNode * params ) {
831 TypeData * ftype = new TypeData( TypeData::Function );
832 ftype->function.params = params;
833 setBase( ftype );
834 return this;
835}
836
837static TypeData * addIdListToType( TypeData * type, DeclarationNode * ids ) {
838 if ( type ) {
839 if ( type->kind != TypeData::Function ) {
840 type->base = addIdListToType( type->base, ids );
841 } else {
842 type->function.idList = ids;
843 } // if
844 return type;
845 } else {
846 TypeData * newtype = new TypeData( TypeData::Function );
847 newtype->function.idList = ids;
848 return newtype;
849 } // if
850} // addIdListToType
851
852DeclarationNode * DeclarationNode::addIdList( DeclarationNode * ids ) {
853 type = addIdListToType( type, ids );
854 return this;
855}
856
857DeclarationNode * DeclarationNode::addInitializer( InitializerNode * init ) {
858 initializer = init;
859 return this;
860}
861
862DeclarationNode * DeclarationNode::addTypeInitializer( DeclarationNode * init ) {
863 assertf( variable.tyClass != NoTypeClass, "Called addTypeInitializer on something that isn't a type variable." );
864 variable.initializer = init;
865 return this;
866}
867
868DeclarationNode * DeclarationNode::cloneType( string * newName ) {
869 DeclarationNode * newnode = new DeclarationNode;
870 newnode->type = maybeClone( type );
871 newnode->copySpecifiers( this );
872 assert( newName );
873 newnode->name = newName;
874 return newnode;
875}
876
877DeclarationNode * DeclarationNode::cloneBaseType( DeclarationNode * o ) {
878 if ( ! o ) return nullptr;
879
880 o->copySpecifiers( this );
881 if ( type ) {
882 TypeData * srcType = type;
883
884 // search for the base type by scanning off pointers and array designators
885 while ( srcType->base ) {
886 srcType = srcType->base;
887 } // while
888
889 TypeData * newType = srcType->clone();
890 if ( newType->kind == TypeData::AggregateInst ) {
891 // don't duplicate members
892 if ( newType->aggInst.aggregate->kind == TypeData::Enum ) {
893 delete newType->aggInst.aggregate->enumeration.constants;
894 newType->aggInst.aggregate->enumeration.constants = nullptr;
895 } else {
896 assert( newType->aggInst.aggregate->kind == TypeData::Aggregate );
897 delete newType->aggInst.aggregate->aggregate.fields;
898 newType->aggInst.aggregate->aggregate.fields = nullptr;
899 } // if
900 // don't hoist twice
901 newType->aggInst.hoistType = false;
902 } // if
903
904 newType->forall = maybeClone( type->forall );
905 if ( ! o->type ) {
906 o->type = newType;
907 } else {
908 addTypeToType( newType, o->type );
909 delete newType;
910 } // if
911 } // if
912 return o;
913}
914
915DeclarationNode * DeclarationNode::extractAggregate() const {
916 if ( type ) {
917 TypeData * ret = typeextractAggregate( type );
918 if ( ret ) {
919 DeclarationNode * newnode = new DeclarationNode;
920 newnode->type = ret;
921 return newnode;
922 } // if
923 } // if
924 return nullptr;
925}
926
927void buildList( const DeclarationNode * firstNode, std::list< Declaration * > &outputList ) {
928 SemanticError errors;
929 std::back_insert_iterator< std::list< Declaration * > > out( outputList );
930
931 for ( const DeclarationNode * cur = firstNode; cur; cur = dynamic_cast< DeclarationNode * >( cur->get_next() ) ) {
932 try {
933 if ( DeclarationNode * extr = cur->extractAggregate() ) {
934 // handle the case where a structure declaration is contained within an object or type declaration
935 Declaration * decl = extr->build();
936 if ( decl ) {
937 decl->location = cur->location;
938 * out++ = decl;
939 } // if
940 delete extr;
941 } // if
942
943 Declaration * decl = cur->build();
944 if ( decl ) {
945 decl->location = cur->location;
946 * out++ = decl;
947 } // if
948 } catch( SemanticError &e ) {
949 e.set_location( cur->location );
950 errors.append( e );
951 } // try
952 } // while
953
954 if ( ! errors.isEmpty() ) {
955 throw errors;
956 } // if
957} // buildList
958
959void buildList( const DeclarationNode * firstNode, std::list< DeclarationWithType * > &outputList ) {
960 SemanticError errors;
961 std::back_insert_iterator< std::list< DeclarationWithType * > > out( outputList );
962
963 for ( const DeclarationNode * cur = firstNode; cur; cur = dynamic_cast< DeclarationNode * >( cur->get_next() ) ) {
964 try {
965 Declaration * decl = cur->build();
966 if ( decl ) {
967 if ( DeclarationWithType * dwt = dynamic_cast< DeclarationWithType * >( decl ) ) {
968 dwt->location = cur->location;
969 * out++ = dwt;
970 } else if ( StructDecl * agg = dynamic_cast< StructDecl * >( decl ) ) {
971 StructInstType * inst = new StructInstType( Type::Qualifiers(), agg->get_name() );
972 auto obj = new ObjectDecl( "", Type::StorageClasses(), linkage, nullptr, inst, nullptr );
973 obj->location = cur->location;
974 * out++ = obj;
975 delete agg;
976 } else if ( UnionDecl * agg = dynamic_cast< UnionDecl * >( decl ) ) {
977 UnionInstType * inst = new UnionInstType( Type::Qualifiers(), agg->get_name() );
978 auto obj = new ObjectDecl( "", Type::StorageClasses(), linkage, nullptr, inst, nullptr );
979 obj->location = cur->location;
980 * out++ = obj;
981 } // if
982 } // if
983 } catch( SemanticError &e ) {
984 e.set_location( cur->location );
985 errors.append( e );
986 } // try
987 } // for
988
989 if ( ! errors.isEmpty() ) {
990 throw errors;
991 } // if
992} // buildList
993
994void buildTypeList( const DeclarationNode * firstNode, std::list< Type * > &outputList ) {
995 SemanticError errors;
996 std::back_insert_iterator< std::list< Type * > > out( outputList );
997 const DeclarationNode * cur = firstNode;
998
999 while ( cur ) {
1000 try {
1001 * out++ = cur->buildType();
1002 } catch( SemanticError &e ) {
1003 e.set_location( cur->location );
1004 errors.append( e );
1005 } // try
1006 cur = dynamic_cast< DeclarationNode * >( cur->get_next() );
1007 } // while
1008
1009 if ( ! errors.isEmpty() ) {
1010 throw errors;
1011 } // if
1012} // buildTypeList
1013
1014Declaration * DeclarationNode::build() const {
1015 if ( ! error.empty() ) throw SemanticError( error + " in declaration of ", this );
1016
1017 if ( asmStmt ) {
1018 return new AsmDecl( safe_dynamic_cast<AsmStmt *>( asmStmt->build() ) );
1019 } // if
1020
1021 if ( variable.tyClass != NoTypeClass ) {
1022 static const TypeDecl::Kind kindMap[] = { TypeDecl::Any, TypeDecl::Dtype, TypeDecl::Ftype, TypeDecl::Ttype };
1023 assertf( sizeof(kindMap)/sizeof(kindMap[0] == NoTypeClass-1), "DeclarationNode::build: kindMap is out of sync." );
1024 assertf( variable.tyClass < sizeof(kindMap)/sizeof(kindMap[0]), "Variable's tyClass is out of bounds." );
1025 TypeDecl * ret = new TypeDecl( *name, Type::StorageClasses(), nullptr, kindMap[ variable.tyClass ], variable.initializer ? variable.initializer->buildType() : nullptr );
1026 buildList( variable.assertions, ret->get_assertions() );
1027 return ret;
1028 } // if
1029
1030 if ( type ) {
1031 // Function specifiers can only appear on a function definition/declaration.
1032 //
1033 // inline _Noreturn int f(); // allowed
1034 // inline _Noreturn int g( int i ); // allowed
1035 // inline _Noreturn int i; // disallowed
1036 if ( type->kind != TypeData::Function && funcSpecs.any() ) {
1037 throw SemanticError( "invalid function specifier for ", this );
1038 } // if
1039 return buildDecl( type, name ? *name : string( "" ), storageClasses, maybeBuild< Expression >( bitfieldWidth ), funcSpecs, linkage, asmName, maybeBuild< Initializer >(initializer), attributes )->set_extension( extension );
1040 } // if
1041
1042 // SUE's cannot have function specifiers, either
1043 //
1044 // inlne _Noreturn struct S { ... }; // disallowed
1045 // inlne _Noreturn enum E { ... }; // disallowed
1046 if ( funcSpecs.any() ) {
1047 throw SemanticError( "invalid function specifier for ", this );
1048 } // if
1049 assertf( name, "ObjectDecl must a have name\n" );
1050 return (new ObjectDecl( *name, storageClasses, linkage, maybeBuild< Expression >( bitfieldWidth ), nullptr, maybeBuild< Initializer >( initializer ) ))->set_asmName( asmName )->set_extension( extension );
1051}
1052
1053Type * DeclarationNode::buildType() const {
1054 assert( type );
1055
1056 if ( attr.expr ) {
1057 return new AttrType( buildQualifiers( type ), *name, attr.expr->build(), attributes );
1058 } else if ( attr.type ) {
1059 return new AttrType( buildQualifiers( type ), *name, attr.type->buildType(), attributes );
1060 } // if
1061
1062 switch ( type->kind ) {
1063 case TypeData::Enum:
1064 case TypeData::Aggregate: {
1065 ReferenceToType * ret = buildComAggInst( type, attributes );
1066 buildList( type->aggregate.actuals, ret->get_parameters() );
1067 return ret;
1068 }
1069 case TypeData::Symbolic: {
1070 TypeInstType * ret = new TypeInstType( buildQualifiers( type ), *type->symbolic.name, false, attributes );
1071 buildList( type->symbolic.actuals, ret->get_parameters() );
1072 return ret;
1073 }
1074 default:
1075 Type * simpletypes = typebuild( type );
1076 simpletypes->get_attributes() = attributes; // copy because member is const
1077 return simpletypes;
1078 } // switch
1079}
1080
1081// Local Variables: //
1082// tab-width: 4 //
1083// mode: c++ //
1084// compile-command: "make install" //
1085// End: //
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