source: src/SynTree/Expression.h@ 3da7c19

ADT arm-eh ast-experimental enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 3da7c19 was 546e712, checked in by Thierry Delisle <tdelisle@…>, 6 years ago

Fix for 1 bug of N
  • 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 : Mon Feb 18 18:29:51 2019
13// Update Count : 49
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#include <vector> // for vector
24
25#include "BaseSyntaxNode.h" // for BaseSyntaxNode
26#include "Constant.h" // for Constant
27#include "Initializer.h" // for Designation (ptr only), Initializer
28#include "Label.h" // for Label
29#include "Mutator.h" // for Mutator
30#include "SynTree.h" // for UniqueId
31#include "Visitor.h" // for Visitor
32
33
34struct ParamEntry;
35
36typedef std::map< UniqueId, ParamEntry > InferredParams;
37
38/// ParamEntry contains the i.d. of a declaration and a type that is derived from that declaration,
39/// but subject to decay-to-pointer and type parameter renaming
40struct ParamEntry {
41 ParamEntry(): decl( 0 ), actualType( 0 ), formalType( 0 ), expr( 0 )/*, inferParams( new InferredParams )*/ {}
42 ParamEntry( UniqueId decl, Type * actualType, Type * formalType, Expression* expr ): decl( decl ), actualType( actualType ), formalType( formalType ), expr( expr )/*, inferParams( new InferredParams )*/ {}
43 ParamEntry( const ParamEntry & other );
44 ParamEntry( ParamEntry && other );
45 ~ParamEntry();
46 ParamEntry & operator=( const ParamEntry & other );
47 ParamEntry & operator=( ParamEntry && other );
48
49 UniqueId decl;
50 Type * actualType;
51 Type * formalType;
52 Expression * expr;
53 // std::unique_ptr< InferredParams > inferParams;
54};
55
56/// Expression is the root type for all expressions
57class Expression : public BaseSyntaxNode {
58 public:
59 Type * result;
60 TypeSubstitution * env;
61 bool extension = false;
62 InferredParams inferParams; ///< Post-resolution inferred parameter slots
63 std::vector<UniqueId> resnSlots; ///< Pre-resolution inferred parameter slots
64
65 // xxx - should turn inferParams+resnSlots into a union to save some memory
66
67 Expression();
68 Expression( const Expression & other );
69 virtual ~Expression();
70
71 Type *& get_result() { return result; }
72 const Type * get_result() const { return result; }
73 void set_result( Type * newValue ) { result = newValue; }
74
75 TypeSubstitution * get_env() const { return env; }
76 void set_env( TypeSubstitution * newValue ) { env = newValue; }
77 bool get_extension() const { return extension; }
78 Expression * set_extension( bool exten ) { extension = exten; return this; }
79
80 // move other's inferParams to this
81 void spliceInferParams( Expression * other );
82
83 virtual Expression * clone() const override = 0;
84 virtual void accept( Visitor & v ) override = 0;
85 virtual Expression * acceptMutator( Mutator & m ) override = 0;
86 virtual void print( std::ostream & os, Indenter indent = {} ) const override;
87};
88
89/// ApplicationExpr represents the application of a function to a set of parameters. This is the result of running an
90/// UntypedExpr through the expression analyzer.
91class ApplicationExpr : public Expression {
92 public:
93 Expression * function;
94 std::list<Expression *> args;
95
96 ApplicationExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
97 ApplicationExpr( const ApplicationExpr & other );
98 virtual ~ApplicationExpr();
99
100 Expression * get_function() const { return function; }
101 void set_function( Expression * newValue ) { function = newValue; }
102 std::list<Expression *>& get_args() { return args; }
103
104 virtual ApplicationExpr * clone() const { return new ApplicationExpr( * this ); }
105 virtual void accept( Visitor & v ) { v.visit( this ); }
106 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
107 virtual void print( std::ostream & os, Indenter indent = {} ) const;
108};
109
110/// UntypedExpr represents the application of a function to a set of parameters, but where the particular overload for
111/// the function name has not yet been determined. Most operators are converted into functional form automatically, to
112/// permit operator overloading.
113class UntypedExpr : public Expression {
114 public:
115 Expression * function;
116 std::list<Expression*> args;
117
118 UntypedExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
119 UntypedExpr( const UntypedExpr & other );
120 virtual ~UntypedExpr();
121
122 Expression * get_function() const { return function; }
123 void set_function( Expression * newValue ) { function = newValue; }
124
125 std::list<Expression*>::iterator begin_args() { return args.begin(); }
126 std::list<Expression*>::iterator end_args() { return args.end(); }
127 std::list<Expression*>& get_args() { return args; }
128
129 static UntypedExpr * createDeref( Expression * arg );
130 static UntypedExpr * createAssign( Expression * arg1, Expression * arg2 );
131
132 virtual UntypedExpr * clone() const { return new UntypedExpr( * this ); }
133 virtual void accept( Visitor & v ) { v.visit( this ); }
134 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
135 virtual void print( std::ostream & os, Indenter indent = {} ) const;
136};
137
138/// NameExpr contains a name whose meaning is still not determined
139class NameExpr : public Expression {
140 public:
141 std::string name;
142
143 NameExpr( std::string name );
144 NameExpr( const NameExpr & other );
145 virtual ~NameExpr();
146
147 const std::string & get_name() const { return name; }
148 void set_name( std::string newValue ) { name = newValue; }
149
150 virtual NameExpr * clone() const { return new NameExpr( * this ); }
151 virtual void accept( Visitor & v ) { v.visit( this ); }
152 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
153 virtual void print( std::ostream & os, Indenter indent = {} ) const;
154};
155
156// The following classes are used to represent expression types that cannot be converted into
157// function-call format.
158
159/// AddressExpr represents a address-of expression, e.g. & e
160class AddressExpr : public Expression {
161 public:
162 Expression * arg;
163
164 AddressExpr( Expression * arg );
165 AddressExpr( const AddressExpr & other );
166 virtual ~AddressExpr();
167
168 Expression * get_arg() const { return arg; }
169 void set_arg(Expression * newValue ) { arg = newValue; }
170
171 virtual AddressExpr * clone() const { return new AddressExpr( * this ); }
172 virtual void accept( Visitor & v ) { v.visit( this ); }
173 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
174 virtual void print( std::ostream & os, Indenter indent = {} ) const;
175};
176
177// GCC &&label
178// https://gcc.gnu.org/onlinedocs/gcc-3.4.2/gcc/Labels-as-Values.html
179class LabelAddressExpr : public Expression {
180 public:
181 Label arg;
182
183 LabelAddressExpr( const Label &arg );
184 LabelAddressExpr( const LabelAddressExpr & other );
185 virtual ~LabelAddressExpr();
186
187 virtual LabelAddressExpr * clone() const { return new LabelAddressExpr( * this ); }
188 virtual void accept( Visitor & v ) { v.visit( this ); }
189 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
190 virtual void print( std::ostream & os, Indenter indent = {} ) const;
191};
192
193/// CastExpr represents a type cast expression, e.g. (int)e
194class CastExpr : public Expression {
195 public:
196 Expression * arg;
197 bool isGenerated = true; // cast generated implicitly by code generation or explicit in program
198
199 CastExpr( Expression * arg, bool isGenerated = true );
200 CastExpr( Expression * arg, Type * toType, bool isGenerated = true );
201 CastExpr( Expression * arg, void * ) = delete; // prevent accidentally passing pointers for isGenerated in the first constructor
202 CastExpr( const CastExpr & other );
203 virtual ~CastExpr();
204
205 Expression * get_arg() const { return arg; }
206 void set_arg( Expression * newValue ) { arg = newValue; }
207
208 virtual CastExpr * clone() const { return new CastExpr( * this ); }
209 virtual void accept( Visitor & v ) { v.visit( this ); }
210 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
211 virtual void print( std::ostream & os, Indenter indent = {} ) const;
212};
213
214/// KeywordCastExpr represents a cast to 'keyword types', e.g. (thread &)t
215class KeywordCastExpr : public Expression {
216public:
217 Expression * arg;
218 enum Target {
219 Coroutine, Thread, Monitor, NUMBER_OF_TARGETS
220 } target;
221
222 KeywordCastExpr( Expression * arg, Target target );
223 KeywordCastExpr( const KeywordCastExpr & other );
224 virtual ~KeywordCastExpr();
225
226 const std::string & targetString() const;
227
228 virtual KeywordCastExpr * clone() const { return new KeywordCastExpr( * this ); }
229 virtual void accept( Visitor & v ) { v.visit( this ); }
230 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
231 virtual void print( std::ostream & os, Indenter indent = {} ) const;
232};
233
234/// VirtualCastExpr repersents a virtual dynamic cast, e.g. (virtual exception)e
235class VirtualCastExpr : public Expression {
236 public:
237 Expression * arg;
238
239 VirtualCastExpr( Expression * arg, Type * toType );
240 VirtualCastExpr( const VirtualCastExpr & other );
241 virtual ~VirtualCastExpr();
242
243 Expression * get_arg() const { return arg; }
244 void set_arg( Expression * newValue ) { arg = newValue; }
245
246 virtual VirtualCastExpr * clone() const { return new VirtualCastExpr( * this ); }
247 virtual void accept( Visitor & v ) { v.visit( this ); }
248 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
249 virtual void print( std::ostream & os, Indenter indent = {} ) const;
250};
251
252/// UntypedMemberExpr represents a member selection operation, e.g. q.p before processing by the expression analyzer
253class UntypedMemberExpr : public Expression {
254 public:
255 Expression * member;
256 Expression * aggregate;
257
258 UntypedMemberExpr( Expression * member, Expression * aggregate );
259 UntypedMemberExpr( const UntypedMemberExpr & other );
260 virtual ~UntypedMemberExpr();
261
262 Expression * get_member() const { return member; }
263 void set_member( Expression * newValue ) { member = newValue; }
264 Expression * get_aggregate() const { return aggregate; }
265 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
266
267 virtual UntypedMemberExpr * clone() const { return new UntypedMemberExpr( * this ); }
268 virtual void accept( Visitor & v ) { v.visit( this ); }
269 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
270 virtual void print( std::ostream & os, Indenter indent = {} ) const;
271};
272
273/// MemberExpr represents a member selection operation, e.g. q.p after processing by the expression analyzer.
274/// Does not take ownership of member.
275class MemberExpr : public Expression {
276 public:
277 DeclarationWithType * member;
278 Expression * aggregate;
279
280 MemberExpr( DeclarationWithType * member, Expression * aggregate );
281 MemberExpr( const MemberExpr & other );
282 virtual ~MemberExpr();
283
284 DeclarationWithType * get_member() const { return member; }
285 void set_member( DeclarationWithType * newValue ) { member = newValue; }
286 Expression * get_aggregate() const { return aggregate; }
287 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
288
289 virtual MemberExpr * clone() const { return new MemberExpr( * this ); }
290 virtual void accept( Visitor & v ) { v.visit( this ); }
291 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
292 virtual void print( std::ostream & os, Indenter indent = {} ) const;
293};
294
295/// VariableExpr represents an expression that simply refers to the value of a named variable.
296/// Does not take ownership of var.
297class VariableExpr : public Expression {
298 public:
299 DeclarationWithType * var;
300
301 VariableExpr();
302 VariableExpr( DeclarationWithType * var );
303 VariableExpr( const VariableExpr & other );
304 virtual ~VariableExpr();
305
306 DeclarationWithType * get_var() const { return var; }
307 void set_var( DeclarationWithType * newValue ) { var = newValue; }
308
309 static VariableExpr * functionPointer( FunctionDecl * decl );
310
311 virtual VariableExpr * clone() const { return new VariableExpr( * this ); }
312 virtual void accept( Visitor & v ) { v.visit( this ); }
313 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
314 virtual void print( std::ostream & os, Indenter indent = {} ) const;
315};
316
317/// ConstantExpr represents an expression that simply refers to the value of a constant
318class ConstantExpr : public Expression {
319 public:
320 Constant constant;
321
322 ConstantExpr( Constant constant );
323 ConstantExpr( const ConstantExpr & other );
324 virtual ~ConstantExpr();
325
326 Constant * get_constant() { return & constant; }
327 const Constant * get_constant() const { return & constant; }
328 void set_constant( const Constant & newValue ) { constant = newValue; }
329
330 long long int intValue() const;
331
332 virtual ConstantExpr * clone() const { return new ConstantExpr( * this ); }
333 virtual void accept( Visitor & v ) { v.visit( this ); }
334 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
335 virtual void print( std::ostream & os, Indenter indent = {} ) const;
336};
337
338/// SizeofExpr represents a sizeof expression (could be sizeof(int) or sizeof 3+4)
339class SizeofExpr : public Expression {
340 public:
341 Expression * expr;
342 Type * type;
343 bool isType;
344
345 SizeofExpr( Expression * expr );
346 SizeofExpr( const SizeofExpr & other );
347 SizeofExpr( Type * type );
348 virtual ~SizeofExpr();
349
350 Expression * get_expr() const { return expr; }
351 void set_expr( Expression * newValue ) { expr = newValue; }
352 Type * get_type() const { return type; }
353 void set_type( Type * newValue ) { type = newValue; }
354 bool get_isType() const { return isType; }
355 void set_isType( bool newValue ) { isType = newValue; }
356
357 virtual SizeofExpr * clone() const { return new SizeofExpr( * this ); }
358 virtual void accept( Visitor & v ) { v.visit( this ); }
359 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
360 virtual void print( std::ostream & os, Indenter indent = {} ) const;
361};
362
363/// AlignofExpr represents an alignof expression
364class AlignofExpr : public Expression {
365 public:
366 Expression * expr;
367 Type * type;
368 bool isType;
369
370 AlignofExpr( Expression * expr );
371 AlignofExpr( const AlignofExpr & other );
372 AlignofExpr( Type * type );
373 virtual ~AlignofExpr();
374
375 Expression * get_expr() const { return expr; }
376 void set_expr( Expression * newValue ) { expr = newValue; }
377 Type * get_type() const { return type; }
378 void set_type( Type * newValue ) { type = newValue; }
379 bool get_isType() const { return isType; }
380 void set_isType( bool newValue ) { isType = newValue; }
381
382 virtual AlignofExpr * clone() const { return new AlignofExpr( * this ); }
383 virtual void accept( Visitor & v ) { v.visit( this ); }
384 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
385 virtual void print( std::ostream & os, Indenter indent = {} ) const;
386};
387
388/// UntypedOffsetofExpr represents an offsetof expression before resolution
389class UntypedOffsetofExpr : public Expression {
390 public:
391 Type * type;
392 std::string member;
393
394 UntypedOffsetofExpr( Type * type, const std::string & member );
395 UntypedOffsetofExpr( const UntypedOffsetofExpr & other );
396 virtual ~UntypedOffsetofExpr();
397
398 std::string get_member() const { return member; }
399 void set_member( const std::string & newValue ) { member = newValue; }
400 Type * get_type() const { return type; }
401 void set_type( Type * newValue ) { type = newValue; }
402
403 virtual UntypedOffsetofExpr * clone() const { return new UntypedOffsetofExpr( * this ); }
404 virtual void accept( Visitor & v ) { v.visit( this ); }
405 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
406 virtual void print( std::ostream & os, Indenter indent = {} ) const;
407};
408
409/// OffsetofExpr represents an offsetof expression
410class OffsetofExpr : public Expression {
411 public:
412 Type * type;
413 DeclarationWithType * member;
414
415 OffsetofExpr( Type * type, DeclarationWithType * member );
416 OffsetofExpr( const OffsetofExpr & other );
417 virtual ~OffsetofExpr();
418
419 Type * get_type() const { return type; }
420 void set_type( Type * newValue ) { type = newValue; }
421 DeclarationWithType * get_member() const { return member; }
422 void set_member( DeclarationWithType * newValue ) { member = newValue; }
423
424 virtual OffsetofExpr * clone() const { return new OffsetofExpr( * this ); }
425 virtual void accept( Visitor & v ) { v.visit( this ); }
426 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
427 virtual void print( std::ostream & os, Indenter indent = {} ) const;
428};
429
430/// Expression representing a pack of field-offsets for a generic type
431class OffsetPackExpr : public Expression {
432public:
433 StructInstType * type;
434
435 OffsetPackExpr( StructInstType * type );
436 OffsetPackExpr( const OffsetPackExpr & other );
437 virtual ~OffsetPackExpr();
438
439 StructInstType * get_type() const { return type; }
440 void set_type( StructInstType * newValue ) { type = newValue; }
441
442 virtual OffsetPackExpr * clone() const { return new OffsetPackExpr( * this ); }
443 virtual void accept( Visitor & v ) { v.visit( this ); }
444 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
445 virtual void print( std::ostream & os, Indenter indent = {} ) const;
446};
447
448/// AttrExpr represents an @attribute expression (like sizeof, but user-defined)
449class AttrExpr : public Expression {
450 public:
451 Expression * attr;
452 Expression * expr;
453 Type * type;
454 bool isType;
455
456 AttrExpr(Expression * attr, Expression * expr );
457 AttrExpr( const AttrExpr & other );
458 AttrExpr( Expression * attr, Type * type );
459 virtual ~AttrExpr();
460
461 Expression * get_attr() const { return attr; }
462 void set_attr( Expression * newValue ) { attr = newValue; }
463 Expression * get_expr() const { return expr; }
464 void set_expr( Expression * newValue ) { expr = newValue; }
465 Type * get_type() const { return type; }
466 void set_type( Type * newValue ) { type = newValue; }
467 bool get_isType() const { return isType; }
468 void set_isType( bool newValue ) { isType = newValue; }
469
470 virtual AttrExpr * clone() const { return new AttrExpr( * this ); }
471 virtual void accept( Visitor & v ) { v.visit( this ); }
472 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
473 virtual void print( std::ostream & os, Indenter indent = {} ) const;
474};
475
476/// LogicalExpr represents a short-circuit boolean expression (&& or ||)
477class LogicalExpr : public Expression {
478 public:
479 Expression * arg1;
480 Expression * arg2;
481
482 LogicalExpr( Expression * arg1, Expression * arg2, bool andp = true );
483 LogicalExpr( const LogicalExpr & other );
484 virtual ~LogicalExpr();
485
486 bool get_isAnd() const { return isAnd; }
487 Expression * get_arg1() { return arg1; }
488 void set_arg1( Expression * newValue ) { arg1 = newValue; }
489 Expression * get_arg2() const { return arg2; }
490 void set_arg2( Expression * newValue ) { arg2 = newValue; }
491
492 virtual LogicalExpr * clone() const { return new LogicalExpr( * this ); }
493 virtual void accept( Visitor & v ) { v.visit( this ); }
494 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
495 virtual void print( std::ostream & os, Indenter indent = {} ) const;
496
497 private:
498 bool isAnd;
499};
500
501/// ConditionalExpr represents the three-argument conditional ( p ? a : b )
502class ConditionalExpr : public Expression {
503 public:
504 Expression * arg1;
505 Expression * arg2;
506 Expression * arg3;
507
508 ConditionalExpr( Expression * arg1, Expression * arg2, Expression * arg3 );
509 ConditionalExpr( const ConditionalExpr & other );
510 virtual ~ConditionalExpr();
511
512 Expression * get_arg1() const { return arg1; }
513 void set_arg1( Expression * newValue ) { arg1 = newValue; }
514 Expression * get_arg2() const { return arg2; }
515 void set_arg2( Expression * newValue ) { arg2 = newValue; }
516 Expression * get_arg3() const { return arg3; }
517 void set_arg3( Expression * newValue ) { arg3 = newValue; }
518
519 virtual ConditionalExpr * clone() const { return new ConditionalExpr( * this ); }
520 virtual void accept( Visitor & v ) { v.visit( this ); }
521 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
522 virtual void print( std::ostream & os, Indenter indent = {} ) const;
523};
524
525/// CommaExpr represents the sequence operator ( a, b )
526class CommaExpr : public Expression {
527 public:
528 Expression * arg1;
529 Expression * arg2;
530
531 CommaExpr( Expression * arg1, Expression * arg2 );
532 CommaExpr( const CommaExpr & other );
533 virtual ~CommaExpr();
534
535 Expression * get_arg1() const { return arg1; }
536 void set_arg1( Expression * newValue ) { arg1 = newValue; }
537 Expression * get_arg2() const { return arg2; }
538 void set_arg2( Expression * newValue ) { arg2 = newValue; }
539
540 virtual CommaExpr * clone() const { return new CommaExpr( * this ); }
541 virtual void accept( Visitor & v ) { v.visit( this ); }
542 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
543 virtual void print( std::ostream & os, Indenter indent = {} ) const;
544};
545
546/// TypeExpr represents a type used in an expression (e.g. as a type generator parameter)
547class TypeExpr : public Expression {
548 public:
549 Type * type;
550
551 TypeExpr( Type * type );
552 TypeExpr( const TypeExpr & other );
553 virtual ~TypeExpr();
554
555 Type * get_type() const { return type; }
556 void set_type( Type * newValue ) { type = newValue; }
557
558 virtual TypeExpr * clone() const { return new TypeExpr( * this ); }
559 virtual void accept( Visitor & v ) { v.visit( this ); }
560 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
561 virtual void print( std::ostream & os, Indenter indent = {} ) const;
562};
563
564/// AsmExpr represents a GCC 'asm constraint operand' used in an asm statement: [output] "=f" (result)
565class AsmExpr : public Expression {
566 public:
567 Expression * inout;
568 Expression * constraint;
569 Expression * operand;
570
571 AsmExpr( Expression * inout, Expression * constraint, Expression * operand ) : inout( inout ), constraint( constraint ), operand( operand ) {}
572 AsmExpr( const AsmExpr & other );
573 virtual ~AsmExpr() { delete inout; delete constraint; delete operand; };
574
575 Expression * get_inout() const { return inout; }
576 void set_inout( Expression * newValue ) { inout = newValue; }
577
578 Expression * get_constraint() const { return constraint; }
579 void set_constraint( Expression * newValue ) { constraint = newValue; }
580
581 Expression * get_operand() const { return operand; }
582 void set_operand( Expression * newValue ) { operand = newValue; }
583
584 virtual AsmExpr * clone() const { return new AsmExpr( * this ); }
585 virtual void accept( Visitor & v ) { v.visit( this ); }
586 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
587 virtual void print( std::ostream & os, Indenter indent = {} ) const;
588
589 // https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/Machine-Constraints.html#Machine-Constraints
590};
591
592/// ImplicitCopyCtorExpr represents the application of a function to a set of parameters,
593/// along with a set of copy constructor calls, one for each argument.
594class ImplicitCopyCtorExpr : public Expression {
595public:
596 ApplicationExpr * callExpr = nullptr;
597
598 ImplicitCopyCtorExpr( ApplicationExpr * callExpr );
599 ImplicitCopyCtorExpr( const ImplicitCopyCtorExpr & other );
600 virtual ~ImplicitCopyCtorExpr();
601
602 virtual ImplicitCopyCtorExpr * clone() const { return new ImplicitCopyCtorExpr( * this ); }
603 virtual void accept( Visitor & v ) { v.visit( this ); }
604 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
605 virtual void print( std::ostream & os, Indenter indent = {} ) const;
606};
607
608/// ConstructorExpr represents the use of a constructor in an expression context, e.g. int * x = malloc() { 5 };
609class ConstructorExpr : public Expression {
610public:
611 Expression * callExpr;
612
613 ConstructorExpr( Expression * callExpr );
614 ConstructorExpr( const ConstructorExpr & other );
615 ~ConstructorExpr();
616
617 Expression * get_callExpr() const { return callExpr; }
618 void set_callExpr( Expression * newValue ) { callExpr = newValue; }
619
620 virtual ConstructorExpr * clone() const { return new ConstructorExpr( * this ); }
621 virtual void accept( Visitor & v ) { v.visit( this ); }
622 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
623 virtual void print( std::ostream & os, Indenter indent = {} ) const;
624};
625
626/// CompoundLiteralExpr represents a C99 'compound literal'
627class CompoundLiteralExpr : public Expression {
628 public:
629 Initializer * initializer;
630
631 CompoundLiteralExpr( Type * type, Initializer * initializer );
632 CompoundLiteralExpr( const CompoundLiteralExpr & other );
633 virtual ~CompoundLiteralExpr();
634
635 Initializer * get_initializer() const { return initializer; }
636 void set_initializer( Initializer * i ) { initializer = i; }
637
638 virtual CompoundLiteralExpr * clone() const { return new CompoundLiteralExpr( * this ); }
639 virtual void accept( Visitor & v ) { v.visit( this ); }
640 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
641 virtual void print( std::ostream & os, Indenter indent = {} ) const;
642};
643
644/// RangeExpr represents a range e.g. '3 ... 5' or '1~10'
645class RangeExpr : public Expression {
646 public:
647 Expression * low, * high;
648
649 RangeExpr( Expression * low, Expression * high );
650 RangeExpr( const RangeExpr & other );
651
652 Expression * get_low() const { return low; }
653 Expression * get_high() const { return high; }
654 RangeExpr * set_low( Expression * low ) { RangeExpr::low = low; return this; }
655 RangeExpr * set_high( Expression * high ) { RangeExpr::high = high; return this; }
656
657 virtual RangeExpr * clone() const { return new RangeExpr( * this ); }
658 virtual void accept( Visitor & v ) { v.visit( this ); }
659 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
660 virtual void print( std::ostream & os, Indenter indent = {} ) const;
661};
662
663/// UntypedTupleExpr represents a tuple expression ( [a, b, c] ) before resolution
664class UntypedTupleExpr : public Expression {
665 public:
666 std::list<Expression*> exprs;
667
668 UntypedTupleExpr( const std::list< Expression * > & exprs );
669 UntypedTupleExpr( const UntypedTupleExpr & other );
670 virtual ~UntypedTupleExpr();
671
672 std::list<Expression*>& get_exprs() { return exprs; }
673
674 virtual UntypedTupleExpr * clone() const { return new UntypedTupleExpr( * this ); }
675 virtual void accept( Visitor & v ) { v.visit( this ); }
676 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
677 virtual void print( std::ostream & os, Indenter indent = {} ) const;
678};
679
680/// TupleExpr represents a tuple expression ( [a, b, c] )
681class TupleExpr : public Expression {
682 public:
683 std::list<Expression*> exprs;
684
685 TupleExpr( const std::list< Expression * > & exprs );
686 TupleExpr( const TupleExpr & other );
687 virtual ~TupleExpr();
688
689 std::list<Expression*>& get_exprs() { return exprs; }
690
691 virtual TupleExpr * clone() const { return new TupleExpr( * this ); }
692 virtual void accept( Visitor & v ) { v.visit( this ); }
693 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
694 virtual void print( std::ostream & os, Indenter indent = {} ) const;
695};
696
697/// TupleIndexExpr represents an element selection operation on a tuple value, e.g. t.3 after processing by the expression analyzer
698class TupleIndexExpr : public Expression {
699 public:
700 Expression * tuple;
701 unsigned int index;
702
703 TupleIndexExpr( Expression * tuple, unsigned int index );
704 TupleIndexExpr( const TupleIndexExpr & other );
705 virtual ~TupleIndexExpr();
706
707 Expression * get_tuple() const { return tuple; }
708 int get_index() const { return index; }
709 TupleIndexExpr * set_tuple( Expression * newValue ) { tuple = newValue; return this; }
710 TupleIndexExpr * set_index( unsigned int newValue ) { index = newValue; return this; }
711
712 virtual TupleIndexExpr * clone() const { return new TupleIndexExpr( * this ); }
713 virtual void accept( Visitor & v ) { v.visit( this ); }
714 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
715 virtual void print( std::ostream & os, Indenter indent = {} ) const;
716};
717
718/// 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
719class TupleAssignExpr : public Expression {
720 public:
721 StmtExpr * stmtExpr = nullptr;
722
723 TupleAssignExpr( const std::list< Expression * > & assigns, const std::list< ObjectDecl * > & tempDecls );
724 TupleAssignExpr( const TupleAssignExpr & other );
725 virtual ~TupleAssignExpr();
726
727 TupleAssignExpr * set_stmtExpr( StmtExpr * newValue ) { stmtExpr = newValue; return this; }
728 StmtExpr * get_stmtExpr() const { return stmtExpr; }
729
730 virtual TupleAssignExpr * clone() const { return new TupleAssignExpr( * this ); }
731 virtual void accept( Visitor & v ) { v.visit( this ); }
732 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
733 virtual void print( std::ostream & os, Indenter indent = {} ) const;
734
735 friend class ConverterNewToOld;
736 private:
737 TupleAssignExpr( StmtExpr * stmts );
738};
739
740/// StmtExpr represents a GCC 'statement expression', e.g. ({ int x = 5; x; })
741class StmtExpr : public Expression {
742public:
743 CompoundStmt * statements;
744 std::list< ObjectDecl * > returnDecls; // return variable(s) for stmt expression
745 std::list< Expression * > dtors; // destructor(s) for return variable(s)
746
747 // readonly
748 ExprStmt * resultExpr = nullptr;
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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