source: src/SynTree/Expression.h@ 0b3b2ae

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 no_list persistent-indexer pthread-emulation qualifiedEnum
Last change on this file since 0b3b2ae was 0f79853, checked in by Rob Schluntz <rschlunt@…>, 7 years ago

Remove conversion cost for default arguments
  • Property mode set to 100644
File size: 34.5 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// Expression.h --
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 : Sun Sep 3 19:23:46 2017
13// Update Count : 48
14//
15
16#pragma once
17
18#include <iosfwd> // for ostream
19#include <list> // for list, list<>::iterator
20#include <map> // for map, map<>::value_compare
21#include <memory> // for allocator, unique_ptr
22#include <string> // for string
23
24#include "BaseSyntaxNode.h" // for BaseSyntaxNode
25#include "Constant.h" // for Constant
26#include "Initializer.h" // for Designation (ptr only), Initializer
27#include "Label.h" // for Label
28#include "Mutator.h" // for Mutator
29#include "SynTree.h" // for UniqueId
30#include "Visitor.h" // for Visitor
31
32
33struct ParamEntry;
34
35typedef std::map< UniqueId, ParamEntry > InferredParams;
36
37/// ParamEntry contains the i.d. of a declaration and a type that is derived from that declaration,
38/// but subject to decay-to-pointer and type parameter renaming
39struct ParamEntry {
40 ParamEntry(): decl( 0 ), actualType( 0 ), formalType( 0 ), expr( 0 ), inferParams( new InferredParams ) {}
41 ParamEntry( UniqueId decl, Type * actualType, Type * formalType, Expression* expr ): decl( decl ), actualType( actualType ), formalType( formalType ), expr( expr ), inferParams( new InferredParams ) {}
42 ParamEntry( const ParamEntry & other );
43 ParamEntry( ParamEntry && other );
44 ~ParamEntry();
45 ParamEntry & operator=( const ParamEntry & other );
46 ParamEntry & operator=( ParamEntry && other );
47
48 UniqueId decl;
49 Type * actualType;
50 Type * formalType;
51 Expression * expr;
52 std::unique_ptr< InferredParams > inferParams;
53};
54
55/// Expression is the root type for all expressions
56class Expression : public BaseSyntaxNode {
57 public:
58 Type * result;
59 TypeSubstitution * env;
60 bool extension = false;
61 InferredParams inferParams;
62
63 Expression();
64 Expression( const Expression & other );
65 virtual ~Expression();
66
67 Type *& get_result() { return result; }
68 const Type * get_result() const { return result; }
69 void set_result( Type * newValue ) { result = newValue; }
70
71 TypeSubstitution * get_env() const { return env; }
72 void set_env( TypeSubstitution * newValue ) { env = newValue; }
73 bool get_extension() const { return extension; }
74 Expression * set_extension( bool exten ) { extension = exten; return this; }
75
76 InferredParams & get_inferParams() { return inferParams; }
77
78 // move other's inferParams to this
79 void spliceInferParams( Expression * other );
80
81 virtual Expression * clone() const override = 0;
82 virtual void accept( Visitor & v ) override = 0;
83 virtual Expression * acceptMutator( Mutator & m ) override = 0;
84 virtual void print( std::ostream & os, Indenter indent = {} ) const override;
85};
86
87/// ApplicationExpr represents the application of a function to a set of parameters. This is the result of running an
88/// UntypedExpr through the expression analyzer.
89class ApplicationExpr : public Expression {
90 public:
91 Expression * function;
92 std::list<Expression *> args;
93
94 ApplicationExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
95 ApplicationExpr( const ApplicationExpr & other );
96 virtual ~ApplicationExpr();
97
98 Expression * get_function() const { return function; }
99 void set_function( Expression * newValue ) { function = newValue; }
100 std::list<Expression *>& get_args() { return args; }
101
102 virtual ApplicationExpr * clone() const { return new ApplicationExpr( * this ); }
103 virtual void accept( Visitor & v ) { v.visit( this ); }
104 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
105 virtual void print( std::ostream & os, Indenter indent = {} ) const;
106};
107
108/// UntypedExpr represents the application of a function to a set of parameters, but where the particular overload for
109/// the function name has not yet been determined. Most operators are converted into functional form automatically, to
110/// permit operator overloading.
111class UntypedExpr : public Expression {
112 public:
113 Expression * function;
114 std::list<Expression*> args;
115
116 UntypedExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
117 UntypedExpr( const UntypedExpr & other );
118 virtual ~UntypedExpr();
119
120 Expression * get_function() const { return function; }
121 void set_function( Expression * newValue ) { function = newValue; }
122
123 std::list<Expression*>::iterator begin_args() { return args.begin(); }
124 std::list<Expression*>::iterator end_args() { return args.end(); }
125 std::list<Expression*>& get_args() { return args; }
126
127 static UntypedExpr * createDeref( Expression * arg );
128 static UntypedExpr * createAssign( Expression * arg1, Expression * arg2 );
129
130 virtual UntypedExpr * clone() const { return new UntypedExpr( * this ); }
131 virtual void accept( Visitor & v ) { v.visit( this ); }
132 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
133 virtual void print( std::ostream & os, Indenter indent = {} ) const;
134};
135
136/// NameExpr contains a name whose meaning is still not determined
137class NameExpr : public Expression {
138 public:
139 std::string name;
140
141 NameExpr( std::string name );
142 NameExpr( const NameExpr & other );
143 virtual ~NameExpr();
144
145 const std::string & get_name() const { return name; }
146 void set_name( std::string newValue ) { name = newValue; }
147
148 virtual NameExpr * clone() const { return new NameExpr( * this ); }
149 virtual void accept( Visitor & v ) { v.visit( this ); }
150 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
151 virtual void print( std::ostream & os, Indenter indent = {} ) const;
152};
153
154// The following classes are used to represent expression types that cannot be converted into
155// function-call format.
156
157/// AddressExpr represents a address-of expression, e.g. & e
158class AddressExpr : public Expression {
159 public:
160 Expression * arg;
161
162 AddressExpr( Expression * arg );
163 AddressExpr( const AddressExpr & other );
164 virtual ~AddressExpr();
165
166 Expression * get_arg() const { return arg; }
167 void set_arg(Expression * newValue ) { arg = newValue; }
168
169 virtual AddressExpr * clone() const { return new AddressExpr( * this ); }
170 virtual void accept( Visitor & v ) { v.visit( this ); }
171 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
172 virtual void print( std::ostream & os, Indenter indent = {} ) const;
173};
174
175// GCC &&label
176// https://gcc.gnu.org/onlinedocs/gcc-3.4.2/gcc/Labels-as-Values.html
177class LabelAddressExpr : public Expression {
178 public:
179 Label arg;
180
181 LabelAddressExpr( const Label &arg );
182 LabelAddressExpr( const LabelAddressExpr & other );
183 virtual ~LabelAddressExpr();
184
185 virtual LabelAddressExpr * clone() const { return new LabelAddressExpr( * this ); }
186 virtual void accept( Visitor & v ) { v.visit( this ); }
187 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
188 virtual void print( std::ostream & os, Indenter indent = {} ) const;
189};
190
191/// CastExpr represents a type cast expression, e.g. (int)e
192class CastExpr : public Expression {
193 public:
194 Expression * arg;
195 bool isGenerated = true; // whether this cast appeared in the source program
196
197 CastExpr( Expression * arg, bool isGenerated = true );
198 CastExpr( Expression * arg, Type * toType, bool isGenerated = true );
199 CastExpr( Expression * arg, void * ) = delete; // prevent accidentally passing pointers for isGenerated in the first constructor
200 CastExpr( const CastExpr & other );
201 virtual ~CastExpr();
202
203 Expression * get_arg() const { return arg; }
204 void set_arg( Expression * newValue ) { arg = newValue; }
205
206 virtual CastExpr * clone() const { return new CastExpr( * this ); }
207 virtual void accept( Visitor & v ) { v.visit( this ); }
208 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
209 virtual void print( std::ostream & os, Indenter indent = {} ) const;
210};
211
212/// KeywordCastExpr represents a cast to 'keyword types', e.g. (thread &)t
213class KeywordCastExpr : public Expression {
214public:
215 Expression * arg;
216 enum Target {
217 Coroutine, Thread, Monitor, NUMBER_OF_TARGETS
218 } target;
219
220 KeywordCastExpr( Expression * arg, Target target );
221 KeywordCastExpr( const KeywordCastExpr & other );
222 virtual ~KeywordCastExpr();
223
224 const std::string & targetString() const;
225
226 virtual KeywordCastExpr * clone() const { return new KeywordCastExpr( * this ); }
227 virtual void accept( Visitor & v ) { v.visit( this ); }
228 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
229 virtual void print( std::ostream & os, Indenter indent = {} ) const;
230};
231
232/// VirtualCastExpr repersents a virtual dynamic cast, e.g. (virtual exception)e
233class VirtualCastExpr : public Expression {
234 public:
235 Expression * arg;
236
237 VirtualCastExpr( Expression * arg, Type * toType );
238 VirtualCastExpr( const VirtualCastExpr & other );
239 virtual ~VirtualCastExpr();
240
241 Expression * get_arg() const { return arg; }
242 void set_arg( Expression * newValue ) { arg = newValue; }
243
244 virtual VirtualCastExpr * clone() const { return new VirtualCastExpr( * this ); }
245 virtual void accept( Visitor & v ) { v.visit( this ); }
246 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
247 virtual void print( std::ostream & os, Indenter indent = {} ) const;
248};
249
250/// UntypedMemberExpr represents a member selection operation, e.g. q.p before processing by the expression analyzer
251class UntypedMemberExpr : public Expression {
252 public:
253 Expression * member;
254 Expression * aggregate;
255
256 UntypedMemberExpr( Expression * member, Expression * aggregate );
257 UntypedMemberExpr( const UntypedMemberExpr & other );
258 virtual ~UntypedMemberExpr();
259
260 Expression * get_member() const { return member; }
261 void set_member( Expression * newValue ) { member = newValue; }
262 Expression * get_aggregate() const { return aggregate; }
263 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
264
265 virtual UntypedMemberExpr * clone() const { return new UntypedMemberExpr( * this ); }
266 virtual void accept( Visitor & v ) { v.visit( this ); }
267 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
268 virtual void print( std::ostream & os, Indenter indent = {} ) const;
269};
270
271/// MemberExpr represents a member selection operation, e.g. q.p after processing by the expression analyzer.
272/// Does not take ownership of member.
273class MemberExpr : public Expression {
274 public:
275 DeclarationWithType * member;
276 Expression * aggregate;
277
278 MemberExpr( DeclarationWithType * member, Expression * aggregate );
279 MemberExpr( const MemberExpr & other );
280 virtual ~MemberExpr();
281
282 DeclarationWithType * get_member() const { return member; }
283 void set_member( DeclarationWithType * newValue ) { member = newValue; }
284 Expression * get_aggregate() const { return aggregate; }
285 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
286
287 virtual MemberExpr * clone() const { return new MemberExpr( * this ); }
288 virtual void accept( Visitor & v ) { v.visit( this ); }
289 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
290 virtual void print( std::ostream & os, Indenter indent = {} ) const;
291};
292
293/// VariableExpr represents an expression that simply refers to the value of a named variable.
294/// Does not take ownership of var.
295class VariableExpr : public Expression {
296 public:
297 DeclarationWithType * var;
298
299 VariableExpr( DeclarationWithType * var );
300 VariableExpr( const VariableExpr & other );
301 virtual ~VariableExpr();
302
303 DeclarationWithType * get_var() const { return var; }
304 void set_var( DeclarationWithType * newValue ) { var = newValue; }
305
306 static VariableExpr * functionPointer( FunctionDecl * decl );
307
308 virtual VariableExpr * clone() const { return new VariableExpr( * this ); }
309 virtual void accept( Visitor & v ) { v.visit( this ); }
310 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
311 virtual void print( std::ostream & os, Indenter indent = {} ) const;
312};
313
314/// ConstantExpr represents an expression that simply refers to the value of a constant
315class ConstantExpr : public Expression {
316 public:
317 Constant constant;
318
319 ConstantExpr( Constant constant );
320 ConstantExpr( const ConstantExpr & other );
321 virtual ~ConstantExpr();
322
323 Constant * get_constant() { return & constant; }
324 const Constant * get_constant() const { return & constant; }
325 void set_constant( const Constant & newValue ) { constant = newValue; }
326
327 long long int intValue() const;
328
329 virtual ConstantExpr * clone() const { return new ConstantExpr( * this ); }
330 virtual void accept( Visitor & v ) { v.visit( this ); }
331 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
332 virtual void print( std::ostream & os, Indenter indent = {} ) const;
333};
334
335/// SizeofExpr represents a sizeof expression (could be sizeof(int) or sizeof 3+4)
336class SizeofExpr : public Expression {
337 public:
338 Expression * expr;
339 Type * type;
340 bool isType;
341
342 SizeofExpr( Expression * expr );
343 SizeofExpr( const SizeofExpr & other );
344 SizeofExpr( Type * type );
345 virtual ~SizeofExpr();
346
347 Expression * get_expr() const { return expr; }
348 void set_expr( Expression * newValue ) { expr = newValue; }
349 Type * get_type() const { return type; }
350 void set_type( Type * newValue ) { type = newValue; }
351 bool get_isType() const { return isType; }
352 void set_isType( bool newValue ) { isType = newValue; }
353
354 virtual SizeofExpr * clone() const { return new SizeofExpr( * this ); }
355 virtual void accept( Visitor & v ) { v.visit( this ); }
356 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
357 virtual void print( std::ostream & os, Indenter indent = {} ) const;
358};
359
360/// AlignofExpr represents an alignof expression
361class AlignofExpr : public Expression {
362 public:
363 Expression * expr;
364 Type * type;
365 bool isType;
366
367 AlignofExpr( Expression * expr );
368 AlignofExpr( const AlignofExpr & other );
369 AlignofExpr( Type * type );
370 virtual ~AlignofExpr();
371
372 Expression * get_expr() const { return expr; }
373 void set_expr( Expression * newValue ) { expr = newValue; }
374 Type * get_type() const { return type; }
375 void set_type( Type * newValue ) { type = newValue; }
376 bool get_isType() const { return isType; }
377 void set_isType( bool newValue ) { isType = newValue; }
378
379 virtual AlignofExpr * clone() const { return new AlignofExpr( * this ); }
380 virtual void accept( Visitor & v ) { v.visit( this ); }
381 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
382 virtual void print( std::ostream & os, Indenter indent = {} ) const;
383};
384
385/// UntypedOffsetofExpr represents an offsetof expression before resolution
386class UntypedOffsetofExpr : public Expression {
387 public:
388 Type * type;
389 std::string member;
390
391 UntypedOffsetofExpr( Type * type, const std::string & member );
392 UntypedOffsetofExpr( const UntypedOffsetofExpr & other );
393 virtual ~UntypedOffsetofExpr();
394
395 std::string get_member() const { return member; }
396 void set_member( const std::string & newValue ) { member = newValue; }
397 Type * get_type() const { return type; }
398 void set_type( Type * newValue ) { type = newValue; }
399
400 virtual UntypedOffsetofExpr * clone() const { return new UntypedOffsetofExpr( * this ); }
401 virtual void accept( Visitor & v ) { v.visit( this ); }
402 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
403 virtual void print( std::ostream & os, Indenter indent = {} ) const;
404};
405
406/// OffsetofExpr represents an offsetof expression
407class OffsetofExpr : public Expression {
408 public:
409 Type * type;
410 DeclarationWithType * member;
411
412 OffsetofExpr( Type * type, DeclarationWithType * member );
413 OffsetofExpr( const OffsetofExpr & other );
414 virtual ~OffsetofExpr();
415
416 Type * get_type() const { return type; }
417 void set_type( Type * newValue ) { type = newValue; }
418 DeclarationWithType * get_member() const { return member; }
419 void set_member( DeclarationWithType * newValue ) { member = newValue; }
420
421 virtual OffsetofExpr * clone() const { return new OffsetofExpr( * this ); }
422 virtual void accept( Visitor & v ) { v.visit( this ); }
423 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
424 virtual void print( std::ostream & os, Indenter indent = {} ) const;
425};
426
427/// Expression representing a pack of field-offsets for a generic type
428class OffsetPackExpr : public Expression {
429public:
430 StructInstType * type;
431
432 OffsetPackExpr( StructInstType * type );
433 OffsetPackExpr( const OffsetPackExpr & other );
434 virtual ~OffsetPackExpr();
435
436 StructInstType * get_type() const { return type; }
437 void set_type( StructInstType * newValue ) { type = newValue; }
438
439 virtual OffsetPackExpr * clone() const { return new OffsetPackExpr( * this ); }
440 virtual void accept( Visitor & v ) { v.visit( this ); }
441 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
442 virtual void print( std::ostream & os, Indenter indent = {} ) const;
443};
444
445/// AttrExpr represents an @attribute expression (like sizeof, but user-defined)
446class AttrExpr : public Expression {
447 public:
448 Expression * attr;
449 Expression * expr;
450 Type * type;
451 bool isType;
452
453 AttrExpr(Expression * attr, Expression * expr );
454 AttrExpr( const AttrExpr & other );
455 AttrExpr( Expression * attr, Type * type );
456 virtual ~AttrExpr();
457
458 Expression * get_attr() const { return attr; }
459 void set_attr( Expression * newValue ) { attr = newValue; }
460 Expression * get_expr() const { return expr; }
461 void set_expr( Expression * newValue ) { expr = newValue; }
462 Type * get_type() const { return type; }
463 void set_type( Type * newValue ) { type = newValue; }
464 bool get_isType() const { return isType; }
465 void set_isType( bool newValue ) { isType = newValue; }
466
467 virtual AttrExpr * clone() const { return new AttrExpr( * this ); }
468 virtual void accept( Visitor & v ) { v.visit( this ); }
469 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
470 virtual void print( std::ostream & os, Indenter indent = {} ) const;
471};
472
473/// LogicalExpr represents a short-circuit boolean expression (&& or ||)
474class LogicalExpr : public Expression {
475 public:
476 Expression * arg1;
477 Expression * arg2;
478
479 LogicalExpr( Expression * arg1, Expression * arg2, bool andp = true );
480 LogicalExpr( const LogicalExpr & other );
481 virtual ~LogicalExpr();
482
483 bool get_isAnd() const { return isAnd; }
484 Expression * get_arg1() { return arg1; }
485 void set_arg1( Expression * newValue ) { arg1 = newValue; }
486 Expression * get_arg2() const { return arg2; }
487 void set_arg2( Expression * newValue ) { arg2 = newValue; }
488
489 virtual LogicalExpr * clone() const { return new LogicalExpr( * this ); }
490 virtual void accept( Visitor & v ) { v.visit( this ); }
491 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
492 virtual void print( std::ostream & os, Indenter indent = {} ) const;
493
494 private:
495 bool isAnd;
496};
497
498/// ConditionalExpr represents the three-argument conditional ( p ? a : b )
499class ConditionalExpr : public Expression {
500 public:
501 Expression * arg1;
502 Expression * arg2;
503 Expression * arg3;
504
505 ConditionalExpr( Expression * arg1, Expression * arg2, Expression * arg3 );
506 ConditionalExpr( const ConditionalExpr & other );
507 virtual ~ConditionalExpr();
508
509 Expression * get_arg1() const { return arg1; }
510 void set_arg1( Expression * newValue ) { arg1 = newValue; }
511 Expression * get_arg2() const { return arg2; }
512 void set_arg2( Expression * newValue ) { arg2 = newValue; }
513 Expression * get_arg3() const { return arg3; }
514 void set_arg3( Expression * newValue ) { arg3 = newValue; }
515
516 virtual ConditionalExpr * clone() const { return new ConditionalExpr( * this ); }
517 virtual void accept( Visitor & v ) { v.visit( this ); }
518 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
519 virtual void print( std::ostream & os, Indenter indent = {} ) const;
520};
521
522/// CommaExpr represents the sequence operator ( a, b )
523class CommaExpr : public Expression {
524 public:
525 Expression * arg1;
526 Expression * arg2;
527
528 CommaExpr( Expression * arg1, Expression * arg2 );
529 CommaExpr( const CommaExpr & other );
530 virtual ~CommaExpr();
531
532 Expression * get_arg1() const { return arg1; }
533 void set_arg1( Expression * newValue ) { arg1 = newValue; }
534 Expression * get_arg2() const { return arg2; }
535 void set_arg2( Expression * newValue ) { arg2 = newValue; }
536
537 virtual CommaExpr * clone() const { return new CommaExpr( * this ); }
538 virtual void accept( Visitor & v ) { v.visit( this ); }
539 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
540 virtual void print( std::ostream & os, Indenter indent = {} ) const;
541};
542
543/// TypeExpr represents a type used in an expression (e.g. as a type generator parameter)
544class TypeExpr : public Expression {
545 public:
546 Type * type;
547
548 TypeExpr( Type * type );
549 TypeExpr( const TypeExpr & other );
550 virtual ~TypeExpr();
551
552 Type * get_type() const { return type; }
553 void set_type( Type * newValue ) { type = newValue; }
554
555 virtual TypeExpr * clone() const { return new TypeExpr( * this ); }
556 virtual void accept( Visitor & v ) { v.visit( this ); }
557 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
558 virtual void print( std::ostream & os, Indenter indent = {} ) const;
559};
560
561/// AsmExpr represents a GCC 'asm constraint operand' used in an asm statement: [output] "=f" (result)
562class AsmExpr : public Expression {
563 public:
564 Expression * inout;
565 Expression * constraint;
566 Expression * operand;
567
568 AsmExpr( Expression * inout, Expression * constraint, Expression * operand ) : inout( inout ), constraint( constraint ), operand( operand ) {}
569 AsmExpr( const AsmExpr & other );
570 virtual ~AsmExpr() { delete inout; delete constraint; delete operand; };
571
572 Expression * get_inout() const { return inout; }
573 void set_inout( Expression * newValue ) { inout = newValue; }
574
575 Expression * get_constraint() const { return constraint; }
576 void set_constraint( Expression * newValue ) { constraint = newValue; }
577
578 Expression * get_operand() const { return operand; }
579 void set_operand( Expression * newValue ) { operand = newValue; }
580
581 virtual AsmExpr * clone() const { return new AsmExpr( * this ); }
582 virtual void accept( Visitor & v ) { v.visit( this ); }
583 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
584 virtual void print( std::ostream & os, Indenter indent = {} ) const;
585
586 // https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/Machine-Constraints.html#Machine-Constraints
587};
588
589/// ImplicitCopyCtorExpr represents the application of a function to a set of parameters,
590/// along with a set of copy constructor calls, one for each argument.
591class ImplicitCopyCtorExpr : public Expression {
592public:
593 ApplicationExpr * callExpr;
594 std::list< ObjectDecl * > tempDecls;
595 std::list< ObjectDecl * > returnDecls;
596 std::list< Expression * > dtors;
597
598 ImplicitCopyCtorExpr( ApplicationExpr * callExpr );
599 ImplicitCopyCtorExpr( const ImplicitCopyCtorExpr & other );
600 virtual ~ImplicitCopyCtorExpr();
601
602 ApplicationExpr * get_callExpr() const { return callExpr; }
603 void set_callExpr( ApplicationExpr * newValue ) { callExpr = newValue; }
604
605 std::list< ObjectDecl * > & get_tempDecls() { return tempDecls; }
606 std::list< ObjectDecl * > & get_returnDecls() { return returnDecls; }
607 std::list< Expression * > & get_dtors() { return dtors; }
608
609 virtual ImplicitCopyCtorExpr * clone() const { return new ImplicitCopyCtorExpr( * this ); }
610 virtual void accept( Visitor & v ) { v.visit( this ); }
611 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
612 virtual void print( std::ostream & os, Indenter indent = {} ) const;
613};
614
615/// ConstructorExpr represents the use of a constructor in an expression context, e.g. int * x = malloc() { 5 };
616class ConstructorExpr : public Expression {
617public:
618 Expression * callExpr;
619
620 ConstructorExpr( Expression * callExpr );
621 ConstructorExpr( const ConstructorExpr & other );
622 ~ConstructorExpr();
623
624 Expression * get_callExpr() const { return callExpr; }
625 void set_callExpr( Expression * newValue ) { callExpr = newValue; }
626
627 virtual ConstructorExpr * clone() const { return new ConstructorExpr( * this ); }
628 virtual void accept( Visitor & v ) { v.visit( this ); }
629 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
630 virtual void print( std::ostream & os, Indenter indent = {} ) const;
631};
632
633/// CompoundLiteralExpr represents a C99 'compound literal'
634class CompoundLiteralExpr : public Expression {
635 public:
636 Initializer * initializer;
637
638 CompoundLiteralExpr( Type * type, Initializer * initializer );
639 CompoundLiteralExpr( const CompoundLiteralExpr & other );
640 virtual ~CompoundLiteralExpr();
641
642 Initializer * get_initializer() const { return initializer; }
643 void set_initializer( Initializer * i ) { initializer = i; }
644
645 virtual CompoundLiteralExpr * clone() const { return new CompoundLiteralExpr( * this ); }
646 virtual void accept( Visitor & v ) { v.visit( this ); }
647 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
648 virtual void print( std::ostream & os, Indenter indent = {} ) const;
649};
650
651/// RangeExpr represents a range e.g. '3 ... 5' or '1~10'
652class RangeExpr : public Expression {
653 public:
654 Expression * low, * high;
655
656 RangeExpr( Expression * low, Expression * high );
657 RangeExpr( const RangeExpr & other );
658
659 Expression * get_low() const { return low; }
660 Expression * get_high() const { return high; }
661 RangeExpr * set_low( Expression * low ) { RangeExpr::low = low; return this; }
662 RangeExpr * set_high( Expression * high ) { RangeExpr::high = high; return this; }
663
664 virtual RangeExpr * clone() const { return new RangeExpr( * this ); }
665 virtual void accept( Visitor & v ) { v.visit( this ); }
666 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
667 virtual void print( std::ostream & os, Indenter indent = {} ) const;
668};
669
670/// UntypedTupleExpr represents a tuple expression ( [a, b, c] ) before resolution
671class UntypedTupleExpr : public Expression {
672 public:
673 std::list<Expression*> exprs;
674
675 UntypedTupleExpr( const std::list< Expression * > & exprs );
676 UntypedTupleExpr( const UntypedTupleExpr & other );
677 virtual ~UntypedTupleExpr();
678
679 std::list<Expression*>& get_exprs() { return exprs; }
680
681 virtual UntypedTupleExpr * clone() const { return new UntypedTupleExpr( * this ); }
682 virtual void accept( Visitor & v ) { v.visit( this ); }
683 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
684 virtual void print( std::ostream & os, Indenter indent = {} ) const;
685};
686
687/// TupleExpr represents a tuple expression ( [a, b, c] )
688class TupleExpr : public Expression {
689 public:
690 std::list<Expression*> exprs;
691
692 TupleExpr( const std::list< Expression * > & exprs );
693 TupleExpr( const TupleExpr & other );
694 virtual ~TupleExpr();
695
696 std::list<Expression*>& get_exprs() { return exprs; }
697
698 virtual TupleExpr * clone() const { return new TupleExpr( * this ); }
699 virtual void accept( Visitor & v ) { v.visit( this ); }
700 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
701 virtual void print( std::ostream & os, Indenter indent = {} ) const;
702};
703
704/// TupleIndexExpr represents an element selection operation on a tuple value, e.g. t.3 after processing by the expression analyzer
705class TupleIndexExpr : public Expression {
706 public:
707 Expression * tuple;
708 unsigned int index;
709
710 TupleIndexExpr( Expression * tuple, unsigned int index );
711 TupleIndexExpr( const TupleIndexExpr & other );
712 virtual ~TupleIndexExpr();
713
714 Expression * get_tuple() const { return tuple; }
715 int get_index() const { return index; }
716 TupleIndexExpr * set_tuple( Expression * newValue ) { tuple = newValue; return this; }
717 TupleIndexExpr * set_index( unsigned int newValue ) { index = newValue; return this; }
718
719 virtual TupleIndexExpr * clone() const { return new TupleIndexExpr( * this ); }
720 virtual void accept( Visitor & v ) { v.visit( this ); }
721 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
722 virtual void print( std::ostream & os, Indenter indent = {} ) const;
723};
724
725/// TupleAssignExpr represents a multiple assignment operation, where both sides of the assignment have tuple type, e.g. [a, b, c] = [d, e, f];, a mass assignment operation, where the left hand side has tuple type and the right hand side does not, e.g. [a, b, c] = 5.0;, or a tuple ctor/dtor expression
726class TupleAssignExpr : public Expression {
727 public:
728 StmtExpr * stmtExpr = nullptr;
729
730 TupleAssignExpr( const std::list< Expression * > & assigns, const std::list< ObjectDecl * > & tempDecls );
731 TupleAssignExpr( const TupleAssignExpr & other );
732 virtual ~TupleAssignExpr();
733
734 TupleAssignExpr * set_stmtExpr( StmtExpr * newValue ) { stmtExpr = newValue; return this; }
735 StmtExpr * get_stmtExpr() const { return stmtExpr; }
736
737 virtual TupleAssignExpr * clone() const { return new TupleAssignExpr( * this ); }
738 virtual void accept( Visitor & v ) { v.visit( this ); }
739 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
740 virtual void print( std::ostream & os, Indenter indent = {} ) const;
741};
742
743/// StmtExpr represents a GCC 'statement expression', e.g. ({ int x = 5; x; })
744class StmtExpr : public Expression {
745public:
746 CompoundStmt * statements;
747 std::list< ObjectDecl * > returnDecls; // return variable(s) for stmt expression
748 std::list< Expression * > dtors; // destructor(s) for return variable(s)
749
750 StmtExpr( CompoundStmt * statements );
751 StmtExpr( const StmtExpr & other );
752 virtual ~StmtExpr();
753
754 CompoundStmt * get_statements() const { return statements; }
755 StmtExpr * set_statements( CompoundStmt * newValue ) { statements = newValue; return this; }
756
757 // call to set the result type of this StmtExpr based on its body
758 void computeResult();
759
760 std::list< ObjectDecl * > & get_returnDecls() { return returnDecls; }
761 std::list< Expression * > & get_dtors() { return dtors; }
762
763 virtual StmtExpr * clone() const { return new StmtExpr( * this ); }
764 virtual void accept( Visitor & v ) { v.visit( this ); }
765 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
766 virtual void print( std::ostream & os, Indenter indent = {} ) const;
767};
768
769class UniqueExpr : public Expression {
770public:
771 Expression * expr;
772 ObjectDecl * object;
773 VariableExpr * var;
774
775 UniqueExpr( Expression * expr, long long idVal = -1 );
776 UniqueExpr( const UniqueExpr & other );
777 ~UniqueExpr();
778
779 Expression * get_expr() const { return expr; }
780 UniqueExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
781
782 ObjectDecl * get_object() const { return object; }
783 UniqueExpr * set_object( ObjectDecl * newValue ) { object = newValue; return this; }
784
785 VariableExpr * get_var() const { return var; }
786 UniqueExpr * set_var( VariableExpr * newValue ) { var = newValue; return this; }
787
788 int get_id() const { return id; }
789
790 virtual UniqueExpr * clone() const { return new UniqueExpr( * this ); }
791 virtual void accept( Visitor & v ) { v.visit( this ); }
792 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
793 virtual void print( std::ostream & os, Indenter indent = {} ) const;
794
795private:
796 int id;
797 static long long count;
798};
799
800struct InitAlternative {
801public:
802 Type * type = nullptr;
803 Designation * designation = nullptr;
804 InitAlternative( Type * type, Designation * designation );
805 InitAlternative( const InitAlternative & other );
806 InitAlternative & operator=( const Initializer & other ) = delete; // at the moment this isn't used, and I don't want to implement it
807 ~InitAlternative();
808};
809
810class UntypedInitExpr : public Expression {
811public:
812 Expression * expr;
813 std::list<InitAlternative> initAlts;
814
815 UntypedInitExpr( Expression * expr, const std::list<InitAlternative> & initAlts );
816 UntypedInitExpr( const UntypedInitExpr & other );
817 ~UntypedInitExpr();
818
819 Expression * get_expr() const { return expr; }
820 UntypedInitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
821
822 std::list<InitAlternative> & get_initAlts() { return initAlts; }
823
824 virtual UntypedInitExpr * clone() const { return new UntypedInitExpr( * this ); }
825 virtual void accept( Visitor & v ) { v.visit( this ); }
826 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
827 virtual void print( std::ostream & os, Indenter indent = {} ) const;
828};
829
830class InitExpr : public Expression {
831public:
832 Expression * expr;
833 Designation * designation;
834
835 InitExpr( Expression * expr, Designation * designation );
836 InitExpr( const InitExpr & other );
837 ~InitExpr();
838
839 Expression * get_expr() const { return expr; }
840 InitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
841
842 Designation * get_designation() const { return designation; }
843 InitExpr * set_designation( Designation * newValue ) { designation = newValue; return this; }
844
845 virtual InitExpr * clone() const { return new InitExpr( * this ); }
846 virtual void accept( Visitor & v ) { v.visit( this ); }
847 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
848 virtual void print( std::ostream & os, Indenter indent = {} ) const;
849};
850
851/// expression that contains a deleted identifier - should never make it past the resolver.
852class DeletedExpr : public Expression {
853public:
854 Expression * expr;
855 BaseSyntaxNode * deleteStmt;
856
857 DeletedExpr( Expression * expr, BaseSyntaxNode * deleteStmt );
858 DeletedExpr( const DeletedExpr & other );
859 ~DeletedExpr();
860
861 virtual DeletedExpr * clone() const { return new DeletedExpr( * this ); }
862 virtual void accept( Visitor & v ) { v.visit( this ); }
863 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
864 virtual void print( std::ostream & os, Indenter indent = {} ) const;
865};
866
867/// expression wrapping the use of a default argument - should never make it past the resolver.
868class DefaultArgExpr : public Expression {
869public:
870 Expression * expr;
871
872 DefaultArgExpr( Expression * expr );
873 DefaultArgExpr( const DefaultArgExpr & other );
874 ~DefaultArgExpr();
875
876 virtual DefaultArgExpr * clone() const { return new DefaultArgExpr( * this ); }
877 virtual void accept( Visitor & v ) { v.visit( this ); }
878 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
879 virtual void print( std::ostream & os, Indenter indent = {} ) const;
880};
881
882/// C11 _Generic expression
883class GenericExpr : public Expression {
884public:
885 struct Association {
886 Type * type = nullptr;
887 Expression * expr = nullptr;
888 bool isDefault = false;
889
890 Association( Type * type, Expression * expr );
891 Association( Expression * expr );
892 Association( const Association & other );
893 Association & operator=( const Association & other ) = delete; // at the moment this isn't used, and I don't want to implement it
894 ~Association();
895 };
896
897 Expression * control;
898 std::list<Association> associations;
899
900 GenericExpr( Expression * control, const std::list<Association> & assoc );
901 GenericExpr( const GenericExpr & other );
902 virtual ~GenericExpr();
903
904 virtual GenericExpr * clone() const { return new GenericExpr( * this ); }
905 virtual void accept( Visitor & v ) { v.visit( this ); }
906 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
907 virtual void print( std::ostream & os, Indenter indent = {} ) const;
908};
909
910// Local Variables: //
911// tab-width: 4 //
912// mode: c++ //
913// compile-command: "make install" //
914// End: //
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