source: src/SynTree/Expression.h@ 6fd1955

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors enum forall-pointer-decay jacob/cs343-translation jenkins-sandbox new-ast new-ast-unique-expr pthread-emulation qualifiedEnum
Last change on this file since 6fd1955 was 5170d95, checked in by Peter A. Buhr <pabuhr@…>, 7 years ago

fix implict void cast problem
  • Property mode set to 100644
File size: 34.7 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( DeclarationWithType * var );
302 VariableExpr( const VariableExpr & other );
303 virtual ~VariableExpr();
304
305 DeclarationWithType * get_var() const { return var; }
306 void set_var( DeclarationWithType * newValue ) { var = newValue; }
307
308 static VariableExpr * functionPointer( FunctionDecl * decl );
309
310 virtual VariableExpr * clone() const { return new VariableExpr( * this ); }
311 virtual void accept( Visitor & v ) { v.visit( this ); }
312 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
313 virtual void print( std::ostream & os, Indenter indent = {} ) const;
314};
315
316/// ConstantExpr represents an expression that simply refers to the value of a constant
317class ConstantExpr : public Expression {
318 public:
319 Constant constant;
320
321 ConstantExpr( Constant constant );
322 ConstantExpr( const ConstantExpr & other );
323 virtual ~ConstantExpr();
324
325 Constant * get_constant() { return & constant; }
326 const Constant * get_constant() const { return & constant; }
327 void set_constant( const Constant & newValue ) { constant = newValue; }
328
329 long long int intValue() const;
330
331 virtual ConstantExpr * clone() const { return new ConstantExpr( * this ); }
332 virtual void accept( Visitor & v ) { v.visit( this ); }
333 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
334 virtual void print( std::ostream & os, Indenter indent = {} ) const;
335};
336
337/// SizeofExpr represents a sizeof expression (could be sizeof(int) or sizeof 3+4)
338class SizeofExpr : public Expression {
339 public:
340 Expression * expr;
341 Type * type;
342 bool isType;
343
344 SizeofExpr( Expression * expr );
345 SizeofExpr( const SizeofExpr & other );
346 SizeofExpr( Type * type );
347 virtual ~SizeofExpr();
348
349 Expression * get_expr() const { return expr; }
350 void set_expr( Expression * newValue ) { expr = newValue; }
351 Type * get_type() const { return type; }
352 void set_type( Type * newValue ) { type = newValue; }
353 bool get_isType() const { return isType; }
354 void set_isType( bool newValue ) { isType = newValue; }
355
356 virtual SizeofExpr * clone() const { return new SizeofExpr( * this ); }
357 virtual void accept( Visitor & v ) { v.visit( this ); }
358 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
359 virtual void print( std::ostream & os, Indenter indent = {} ) const;
360};
361
362/// AlignofExpr represents an alignof expression
363class AlignofExpr : public Expression {
364 public:
365 Expression * expr;
366 Type * type;
367 bool isType;
368
369 AlignofExpr( Expression * expr );
370 AlignofExpr( const AlignofExpr & other );
371 AlignofExpr( Type * type );
372 virtual ~AlignofExpr();
373
374 Expression * get_expr() const { return expr; }
375 void set_expr( Expression * newValue ) { expr = newValue; }
376 Type * get_type() const { return type; }
377 void set_type( Type * newValue ) { type = newValue; }
378 bool get_isType() const { return isType; }
379 void set_isType( bool newValue ) { isType = newValue; }
380
381 virtual AlignofExpr * clone() const { return new AlignofExpr( * this ); }
382 virtual void accept( Visitor & v ) { v.visit( this ); }
383 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
384 virtual void print( std::ostream & os, Indenter indent = {} ) const;
385};
386
387/// UntypedOffsetofExpr represents an offsetof expression before resolution
388class UntypedOffsetofExpr : public Expression {
389 public:
390 Type * type;
391 std::string member;
392
393 UntypedOffsetofExpr( Type * type, const std::string & member );
394 UntypedOffsetofExpr( const UntypedOffsetofExpr & other );
395 virtual ~UntypedOffsetofExpr();
396
397 std::string get_member() const { return member; }
398 void set_member( const std::string & newValue ) { member = newValue; }
399 Type * get_type() const { return type; }
400 void set_type( Type * newValue ) { type = newValue; }
401
402 virtual UntypedOffsetofExpr * clone() const { return new UntypedOffsetofExpr( * this ); }
403 virtual void accept( Visitor & v ) { v.visit( this ); }
404 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
405 virtual void print( std::ostream & os, Indenter indent = {} ) const;
406};
407
408/// OffsetofExpr represents an offsetof expression
409class OffsetofExpr : public Expression {
410 public:
411 Type * type;
412 DeclarationWithType * member;
413
414 OffsetofExpr( Type * type, DeclarationWithType * member );
415 OffsetofExpr( const OffsetofExpr & other );
416 virtual ~OffsetofExpr();
417
418 Type * get_type() const { return type; }
419 void set_type( Type * newValue ) { type = newValue; }
420 DeclarationWithType * get_member() const { return member; }
421 void set_member( DeclarationWithType * newValue ) { member = newValue; }
422
423 virtual OffsetofExpr * clone() const { return new OffsetofExpr( * this ); }
424 virtual void accept( Visitor & v ) { v.visit( this ); }
425 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
426 virtual void print( std::ostream & os, Indenter indent = {} ) const;
427};
428
429/// Expression representing a pack of field-offsets for a generic type
430class OffsetPackExpr : public Expression {
431public:
432 StructInstType * type;
433
434 OffsetPackExpr( StructInstType * type );
435 OffsetPackExpr( const OffsetPackExpr & other );
436 virtual ~OffsetPackExpr();
437
438 StructInstType * get_type() const { return type; }
439 void set_type( StructInstType * newValue ) { type = newValue; }
440
441 virtual OffsetPackExpr * clone() const { return new OffsetPackExpr( * this ); }
442 virtual void accept( Visitor & v ) { v.visit( this ); }
443 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
444 virtual void print( std::ostream & os, Indenter indent = {} ) const;
445};
446
447/// AttrExpr represents an @attribute expression (like sizeof, but user-defined)
448class AttrExpr : public Expression {
449 public:
450 Expression * attr;
451 Expression * expr;
452 Type * type;
453 bool isType;
454
455 AttrExpr(Expression * attr, Expression * expr );
456 AttrExpr( const AttrExpr & other );
457 AttrExpr( Expression * attr, Type * type );
458 virtual ~AttrExpr();
459
460 Expression * get_attr() const { return attr; }
461 void set_attr( Expression * newValue ) { attr = newValue; }
462 Expression * get_expr() const { return expr; }
463 void set_expr( Expression * newValue ) { expr = newValue; }
464 Type * get_type() const { return type; }
465 void set_type( Type * newValue ) { type = newValue; }
466 bool get_isType() const { return isType; }
467 void set_isType( bool newValue ) { isType = newValue; }
468
469 virtual AttrExpr * clone() const { return new AttrExpr( * this ); }
470 virtual void accept( Visitor & v ) { v.visit( this ); }
471 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
472 virtual void print( std::ostream & os, Indenter indent = {} ) const;
473};
474
475/// LogicalExpr represents a short-circuit boolean expression (&& or ||)
476class LogicalExpr : public Expression {
477 public:
478 Expression * arg1;
479 Expression * arg2;
480
481 LogicalExpr( Expression * arg1, Expression * arg2, bool andp = true );
482 LogicalExpr( const LogicalExpr & other );
483 virtual ~LogicalExpr();
484
485 bool get_isAnd() const { return isAnd; }
486 Expression * get_arg1() { return arg1; }
487 void set_arg1( Expression * newValue ) { arg1 = newValue; }
488 Expression * get_arg2() const { return arg2; }
489 void set_arg2( Expression * newValue ) { arg2 = newValue; }
490
491 virtual LogicalExpr * clone() const { return new LogicalExpr( * this ); }
492 virtual void accept( Visitor & v ) { v.visit( this ); }
493 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
494 virtual void print( std::ostream & os, Indenter indent = {} ) const;
495
496 private:
497 bool isAnd;
498};
499
500/// ConditionalExpr represents the three-argument conditional ( p ? a : b )
501class ConditionalExpr : public Expression {
502 public:
503 Expression * arg1;
504 Expression * arg2;
505 Expression * arg3;
506
507 ConditionalExpr( Expression * arg1, Expression * arg2, Expression * arg3 );
508 ConditionalExpr( const ConditionalExpr & other );
509 virtual ~ConditionalExpr();
510
511 Expression * get_arg1() const { return arg1; }
512 void set_arg1( Expression * newValue ) { arg1 = newValue; }
513 Expression * get_arg2() const { return arg2; }
514 void set_arg2( Expression * newValue ) { arg2 = newValue; }
515 Expression * get_arg3() const { return arg3; }
516 void set_arg3( Expression * newValue ) { arg3 = newValue; }
517
518 virtual ConditionalExpr * clone() const { return new ConditionalExpr( * this ); }
519 virtual void accept( Visitor & v ) { v.visit( this ); }
520 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
521 virtual void print( std::ostream & os, Indenter indent = {} ) const;
522};
523
524/// CommaExpr represents the sequence operator ( a, b )
525class CommaExpr : public Expression {
526 public:
527 Expression * arg1;
528 Expression * arg2;
529
530 CommaExpr( Expression * arg1, Expression * arg2 );
531 CommaExpr( const CommaExpr & other );
532 virtual ~CommaExpr();
533
534 Expression * get_arg1() const { return arg1; }
535 void set_arg1( Expression * newValue ) { arg1 = newValue; }
536 Expression * get_arg2() const { return arg2; }
537 void set_arg2( Expression * newValue ) { arg2 = newValue; }
538
539 virtual CommaExpr * clone() const { return new CommaExpr( * this ); }
540 virtual void accept( Visitor & v ) { v.visit( this ); }
541 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
542 virtual void print( std::ostream & os, Indenter indent = {} ) const;
543};
544
545/// TypeExpr represents a type used in an expression (e.g. as a type generator parameter)
546class TypeExpr : public Expression {
547 public:
548 Type * type;
549
550 TypeExpr( Type * type );
551 TypeExpr( const TypeExpr & other );
552 virtual ~TypeExpr();
553
554 Type * get_type() const { return type; }
555 void set_type( Type * newValue ) { type = newValue; }
556
557 virtual TypeExpr * clone() const { return new TypeExpr( * this ); }
558 virtual void accept( Visitor & v ) { v.visit( this ); }
559 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
560 virtual void print( std::ostream & os, Indenter indent = {} ) const;
561};
562
563/// AsmExpr represents a GCC 'asm constraint operand' used in an asm statement: [output] "=f" (result)
564class AsmExpr : public Expression {
565 public:
566 Expression * inout;
567 Expression * constraint;
568 Expression * operand;
569
570 AsmExpr( Expression * inout, Expression * constraint, Expression * operand ) : inout( inout ), constraint( constraint ), operand( operand ) {}
571 AsmExpr( const AsmExpr & other );
572 virtual ~AsmExpr() { delete inout; delete constraint; delete operand; };
573
574 Expression * get_inout() const { return inout; }
575 void set_inout( Expression * newValue ) { inout = newValue; }
576
577 Expression * get_constraint() const { return constraint; }
578 void set_constraint( Expression * newValue ) { constraint = newValue; }
579
580 Expression * get_operand() const { return operand; }
581 void set_operand( Expression * newValue ) { operand = newValue; }
582
583 virtual AsmExpr * clone() const { return new AsmExpr( * this ); }
584 virtual void accept( Visitor & v ) { v.visit( this ); }
585 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
586 virtual void print( std::ostream & os, Indenter indent = {} ) const;
587
588 // https://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/Machine-Constraints.html#Machine-Constraints
589};
590
591/// ImplicitCopyCtorExpr represents the application of a function to a set of parameters,
592/// along with a set of copy constructor calls, one for each argument.
593class ImplicitCopyCtorExpr : public Expression {
594public:
595 ApplicationExpr * callExpr;
596 std::list< ObjectDecl * > tempDecls;
597 std::list< ObjectDecl * > returnDecls;
598 std::list< Expression * > dtors;
599
600 ImplicitCopyCtorExpr( ApplicationExpr * callExpr );
601 ImplicitCopyCtorExpr( const ImplicitCopyCtorExpr & other );
602 virtual ~ImplicitCopyCtorExpr();
603
604 ApplicationExpr * get_callExpr() const { return callExpr; }
605 void set_callExpr( ApplicationExpr * newValue ) { callExpr = newValue; }
606
607 std::list< ObjectDecl * > & get_tempDecls() { return tempDecls; }
608 std::list< ObjectDecl * > & get_returnDecls() { return returnDecls; }
609 std::list< Expression * > & get_dtors() { return dtors; }
610
611 virtual ImplicitCopyCtorExpr * clone() const { return new ImplicitCopyCtorExpr( * this ); }
612 virtual void accept( Visitor & v ) { v.visit( this ); }
613 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
614 virtual void print( std::ostream & os, Indenter indent = {} ) const;
615};
616
617/// ConstructorExpr represents the use of a constructor in an expression context, e.g. int * x = malloc() { 5 };
618class ConstructorExpr : public Expression {
619public:
620 Expression * callExpr;
621
622 ConstructorExpr( Expression * callExpr );
623 ConstructorExpr( const ConstructorExpr & other );
624 ~ConstructorExpr();
625
626 Expression * get_callExpr() const { return callExpr; }
627 void set_callExpr( Expression * newValue ) { callExpr = newValue; }
628
629 virtual ConstructorExpr * clone() const { return new ConstructorExpr( * this ); }
630 virtual void accept( Visitor & v ) { v.visit( this ); }
631 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
632 virtual void print( std::ostream & os, Indenter indent = {} ) const;
633};
634
635/// CompoundLiteralExpr represents a C99 'compound literal'
636class CompoundLiteralExpr : public Expression {
637 public:
638 Initializer * initializer;
639
640 CompoundLiteralExpr( Type * type, Initializer * initializer );
641 CompoundLiteralExpr( const CompoundLiteralExpr & other );
642 virtual ~CompoundLiteralExpr();
643
644 Initializer * get_initializer() const { return initializer; }
645 void set_initializer( Initializer * i ) { initializer = i; }
646
647 virtual CompoundLiteralExpr * clone() const { return new CompoundLiteralExpr( * this ); }
648 virtual void accept( Visitor & v ) { v.visit( this ); }
649 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
650 virtual void print( std::ostream & os, Indenter indent = {} ) const;
651};
652
653/// RangeExpr represents a range e.g. '3 ... 5' or '1~10'
654class RangeExpr : public Expression {
655 public:
656 Expression * low, * high;
657
658 RangeExpr( Expression * low, Expression * high );
659 RangeExpr( const RangeExpr & other );
660
661 Expression * get_low() const { return low; }
662 Expression * get_high() const { return high; }
663 RangeExpr * set_low( Expression * low ) { RangeExpr::low = low; return this; }
664 RangeExpr * set_high( Expression * high ) { RangeExpr::high = high; return this; }
665
666 virtual RangeExpr * clone() const { return new RangeExpr( * this ); }
667 virtual void accept( Visitor & v ) { v.visit( this ); }
668 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
669 virtual void print( std::ostream & os, Indenter indent = {} ) const;
670};
671
672/// UntypedTupleExpr represents a tuple expression ( [a, b, c] ) before resolution
673class UntypedTupleExpr : public Expression {
674 public:
675 std::list<Expression*> exprs;
676
677 UntypedTupleExpr( const std::list< Expression * > & exprs );
678 UntypedTupleExpr( const UntypedTupleExpr & other );
679 virtual ~UntypedTupleExpr();
680
681 std::list<Expression*>& get_exprs() { return exprs; }
682
683 virtual UntypedTupleExpr * clone() const { return new UntypedTupleExpr( * this ); }
684 virtual void accept( Visitor & v ) { v.visit( this ); }
685 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
686 virtual void print( std::ostream & os, Indenter indent = {} ) const;
687};
688
689/// TupleExpr represents a tuple expression ( [a, b, c] )
690class TupleExpr : public Expression {
691 public:
692 std::list<Expression*> exprs;
693
694 TupleExpr( const std::list< Expression * > & exprs );
695 TupleExpr( const TupleExpr & other );
696 virtual ~TupleExpr();
697
698 std::list<Expression*>& get_exprs() { return exprs; }
699
700 virtual TupleExpr * clone() const { return new TupleExpr( * this ); }
701 virtual void accept( Visitor & v ) { v.visit( this ); }
702 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
703 virtual void print( std::ostream & os, Indenter indent = {} ) const;
704};
705
706/// TupleIndexExpr represents an element selection operation on a tuple value, e.g. t.3 after processing by the expression analyzer
707class TupleIndexExpr : public Expression {
708 public:
709 Expression * tuple;
710 unsigned int index;
711
712 TupleIndexExpr( Expression * tuple, unsigned int index );
713 TupleIndexExpr( const TupleIndexExpr & other );
714 virtual ~TupleIndexExpr();
715
716 Expression * get_tuple() const { return tuple; }
717 int get_index() const { return index; }
718 TupleIndexExpr * set_tuple( Expression * newValue ) { tuple = newValue; return this; }
719 TupleIndexExpr * set_index( unsigned int newValue ) { index = newValue; return this; }
720
721 virtual TupleIndexExpr * clone() const { return new TupleIndexExpr( * this ); }
722 virtual void accept( Visitor & v ) { v.visit( this ); }
723 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
724 virtual void print( std::ostream & os, Indenter indent = {} ) const;
725};
726
727/// 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
728class TupleAssignExpr : public Expression {
729 public:
730 StmtExpr * stmtExpr = nullptr;
731
732 TupleAssignExpr( const std::list< Expression * > & assigns, const std::list< ObjectDecl * > & tempDecls );
733 TupleAssignExpr( const TupleAssignExpr & other );
734 virtual ~TupleAssignExpr();
735
736 TupleAssignExpr * set_stmtExpr( StmtExpr * newValue ) { stmtExpr = newValue; return this; }
737 StmtExpr * get_stmtExpr() const { return stmtExpr; }
738
739 virtual TupleAssignExpr * clone() const { return new TupleAssignExpr( * this ); }
740 virtual void accept( Visitor & v ) { v.visit( this ); }
741 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
742 virtual void print( std::ostream & os, Indenter indent = {} ) const;
743};
744
745/// StmtExpr represents a GCC 'statement expression', e.g. ({ int x = 5; x; })
746class StmtExpr : public Expression {
747public:
748 CompoundStmt * statements;
749 std::list< ObjectDecl * > returnDecls; // return variable(s) for stmt expression
750 std::list< Expression * > dtors; // destructor(s) for return variable(s)
751
752 StmtExpr( CompoundStmt * statements );
753 StmtExpr( const StmtExpr & other );
754 virtual ~StmtExpr();
755
756 CompoundStmt * get_statements() const { return statements; }
757 StmtExpr * set_statements( CompoundStmt * newValue ) { statements = newValue; return this; }
758
759 // call to set the result type of this StmtExpr based on its body
760 void computeResult();
761
762 std::list< ObjectDecl * > & get_returnDecls() { return returnDecls; }
763 std::list< Expression * > & get_dtors() { return dtors; }
764
765 virtual StmtExpr * clone() const { return new StmtExpr( * this ); }
766 virtual void accept( Visitor & v ) { v.visit( this ); }
767 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
768 virtual void print( std::ostream & os, Indenter indent = {} ) const;
769};
770
771class UniqueExpr : public Expression {
772public:
773 Expression * expr;
774 ObjectDecl * object;
775 VariableExpr * var;
776
777 UniqueExpr( Expression * expr, long long idVal = -1 );
778 UniqueExpr( const UniqueExpr & other );
779 ~UniqueExpr();
780
781 Expression * get_expr() const { return expr; }
782 UniqueExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
783
784 ObjectDecl * get_object() const { return object; }
785 UniqueExpr * set_object( ObjectDecl * newValue ) { object = newValue; return this; }
786
787 VariableExpr * get_var() const { return var; }
788 UniqueExpr * set_var( VariableExpr * newValue ) { var = newValue; return this; }
789
790 int get_id() const { return id; }
791
792 virtual UniqueExpr * clone() const { return new UniqueExpr( * this ); }
793 virtual void accept( Visitor & v ) { v.visit( this ); }
794 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
795 virtual void print( std::ostream & os, Indenter indent = {} ) const;
796
797private:
798 int id;
799 static long long count;
800};
801
802struct InitAlternative {
803public:
804 Type * type = nullptr;
805 Designation * designation = nullptr;
806 InitAlternative( Type * type, Designation * designation );
807 InitAlternative( const InitAlternative & other );
808 InitAlternative & operator=( const Initializer & other ) = delete; // at the moment this isn't used, and I don't want to implement it
809 ~InitAlternative();
810};
811
812class UntypedInitExpr : public Expression {
813public:
814 Expression * expr;
815 std::list<InitAlternative> initAlts;
816
817 UntypedInitExpr( Expression * expr, const std::list<InitAlternative> & initAlts );
818 UntypedInitExpr( const UntypedInitExpr & other );
819 ~UntypedInitExpr();
820
821 Expression * get_expr() const { return expr; }
822 UntypedInitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
823
824 std::list<InitAlternative> & get_initAlts() { return initAlts; }
825
826 virtual UntypedInitExpr * clone() const { return new UntypedInitExpr( * this ); }
827 virtual void accept( Visitor & v ) { v.visit( this ); }
828 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
829 virtual void print( std::ostream & os, Indenter indent = {} ) const;
830};
831
832class InitExpr : public Expression {
833public:
834 Expression * expr;
835 Designation * designation;
836
837 InitExpr( Expression * expr, Designation * designation );
838 InitExpr( const InitExpr & other );
839 ~InitExpr();
840
841 Expression * get_expr() const { return expr; }
842 InitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
843
844 Designation * get_designation() const { return designation; }
845 InitExpr * set_designation( Designation * newValue ) { designation = newValue; return this; }
846
847 virtual InitExpr * clone() const { return new InitExpr( * this ); }
848 virtual void accept( Visitor & v ) { v.visit( this ); }
849 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
850 virtual void print( std::ostream & os, Indenter indent = {} ) const;
851};
852
853/// expression that contains a deleted identifier - should never make it past the resolver.
854class DeletedExpr : public Expression {
855public:
856 Expression * expr;
857 BaseSyntaxNode * deleteStmt;
858
859 DeletedExpr( Expression * expr, BaseSyntaxNode * deleteStmt );
860 DeletedExpr( const DeletedExpr & other );
861 ~DeletedExpr();
862
863 virtual DeletedExpr * clone() const { return new DeletedExpr( * this ); }
864 virtual void accept( Visitor & v ) { v.visit( this ); }
865 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
866 virtual void print( std::ostream & os, Indenter indent = {} ) const;
867};
868
869/// expression wrapping the use of a default argument - should never make it past the resolver.
870class DefaultArgExpr : public Expression {
871public:
872 Expression * expr;
873
874 DefaultArgExpr( Expression * expr );
875 DefaultArgExpr( const DefaultArgExpr & other );
876 ~DefaultArgExpr();
877
878 virtual DefaultArgExpr * clone() const { return new DefaultArgExpr( * this ); }
879 virtual void accept( Visitor & v ) { v.visit( this ); }
880 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
881 virtual void print( std::ostream & os, Indenter indent = {} ) const;
882};
883
884/// C11 _Generic expression
885class GenericExpr : public Expression {
886public:
887 struct Association {
888 Type * type = nullptr;
889 Expression * expr = nullptr;
890 bool isDefault = false;
891
892 Association( Type * type, Expression * expr );
893 Association( Expression * expr );
894 Association( const Association & other );
895 Association & operator=( const Association & other ) = delete; // at the moment this isn't used, and I don't want to implement it
896 ~Association();
897 };
898
899 Expression * control;
900 std::list<Association> associations;
901
902 GenericExpr( Expression * control, const std::list<Association> & assoc );
903 GenericExpr( const GenericExpr & other );
904 virtual ~GenericExpr();
905
906 virtual GenericExpr * clone() const { return new GenericExpr( * this ); }
907 virtual void accept( Visitor & v ) { v.visit( this ); }
908 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
909 virtual void print( std::ostream & os, Indenter indent = {} ) const;
910};
911
912// Local Variables: //
913// tab-width: 4 //
914// mode: c++ //
915// compile-command: "make install" //
916// End: //
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