source: src/SynTree/Expression.h@ 898ae07

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 898ae07 was 462a7c7, checked in by Thierry Delisle <tdelisle@…>, 6 years ago

Removed non-moving assignment on ParamEntry to help debugging
  • Property mode set to 100644
File size: 34.3 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 ), declptr( nullptr ), actualType( nullptr ), formalType( nullptr ), expr( nullptr ) {}
42 ParamEntry( UniqueId decl, Declaration * declptr, Type * actualType, Type * formalType, Expression* expr );
43 ParamEntry( const ParamEntry & other );
44 ParamEntry( ParamEntry && other );
45 ~ParamEntry();
46 ParamEntry & operator=( ParamEntry && other );
47
48 UniqueId const decl;
49 Declaration * const declptr;
50 Type * const actualType;
51 Type * const formalType;
52 Expression * expr;
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; ///< Post-resolution inferred parameter slots
62 std::vector<UniqueId> resnSlots; ///< Pre-resolution inferred parameter slots
63
64 // xxx - should turn inferParams+resnSlots into a union to save some memory
65
66 Expression();
67 Expression( const Expression & other );
68 virtual ~Expression();
69
70 Type *& get_result() { return result; }
71 const Type * get_result() const { return result; }
72 void set_result( Type * newValue ) { result = newValue; }
73
74 TypeSubstitution * get_env() const { return env; }
75 void set_env( TypeSubstitution * newValue ) { env = newValue; }
76 bool get_extension() const { return extension; }
77 Expression * set_extension( bool exten ) { extension = exten; return this; }
78
79 // move other's inferParams to this
80 void spliceInferParams( Expression * other );
81
82 virtual Expression * clone() const override = 0;
83 virtual void accept( Visitor & v ) override = 0;
84 virtual Expression * acceptMutator( Mutator & m ) override = 0;
85 virtual void print( std::ostream & os, Indenter indent = {} ) const override;
86};
87
88/// ApplicationExpr represents the application of a function to a set of parameters. This is the result of running an
89/// UntypedExpr through the expression analyzer.
90class ApplicationExpr : public Expression {
91 public:
92 Expression * function;
93 std::list<Expression *> args;
94
95 ApplicationExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
96 ApplicationExpr( const ApplicationExpr & other );
97 virtual ~ApplicationExpr();
98
99 Expression * get_function() const { return function; }
100 void set_function( Expression * newValue ) { function = newValue; }
101 std::list<Expression *>& get_args() { return args; }
102
103 virtual ApplicationExpr * clone() const { return new ApplicationExpr( * this ); }
104 virtual void accept( Visitor & v ) { v.visit( this ); }
105 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
106 virtual void print( std::ostream & os, Indenter indent = {} ) const;
107};
108
109/// UntypedExpr represents the application of a function to a set of parameters, but where the particular overload for
110/// the function name has not yet been determined. Most operators are converted into functional form automatically, to
111/// permit operator overloading.
112class UntypedExpr : public Expression {
113 public:
114 Expression * function;
115 std::list<Expression*> args;
116
117 UntypedExpr( Expression * function, const std::list<Expression *> & args = std::list< Expression * >() );
118 UntypedExpr( const UntypedExpr & other );
119 virtual ~UntypedExpr();
120
121 Expression * get_function() const { return function; }
122 void set_function( Expression * newValue ) { function = newValue; }
123
124 std::list<Expression*>::iterator begin_args() { return args.begin(); }
125 std::list<Expression*>::iterator end_args() { return args.end(); }
126 std::list<Expression*>& get_args() { return args; }
127
128 static UntypedExpr * createDeref( Expression * arg );
129 static UntypedExpr * createAssign( Expression * arg1, Expression * arg2 );
130
131 virtual UntypedExpr * clone() const { return new UntypedExpr( * this ); }
132 virtual void accept( Visitor & v ) { v.visit( this ); }
133 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
134 virtual void print( std::ostream & os, Indenter indent = {} ) const;
135};
136
137/// NameExpr contains a name whose meaning is still not determined
138class NameExpr : public Expression {
139 public:
140 std::string name;
141
142 NameExpr( std::string name );
143 NameExpr( const NameExpr & other );
144 virtual ~NameExpr();
145
146 const std::string & get_name() const { return name; }
147 void set_name( std::string newValue ) { name = newValue; }
148
149 virtual NameExpr * clone() const { return new NameExpr( * this ); }
150 virtual void accept( Visitor & v ) { v.visit( this ); }
151 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
152 virtual void print( std::ostream & os, Indenter indent = {} ) const;
153};
154
155// The following classes are used to represent expression types that cannot be converted into
156// function-call format.
157
158/// AddressExpr represents a address-of expression, e.g. & e
159class AddressExpr : public Expression {
160 public:
161 Expression * arg;
162
163 AddressExpr( Expression * arg );
164 AddressExpr( const AddressExpr & other );
165 virtual ~AddressExpr();
166
167 Expression * get_arg() const { return arg; }
168 void set_arg(Expression * newValue ) { arg = newValue; }
169
170 virtual AddressExpr * clone() const { return new AddressExpr( * this ); }
171 virtual void accept( Visitor & v ) { v.visit( this ); }
172 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
173 virtual void print( std::ostream & os, Indenter indent = {} ) const;
174};
175
176// GCC &&label
177// https://gcc.gnu.org/onlinedocs/gcc-3.4.2/gcc/Labels-as-Values.html
178class LabelAddressExpr : public Expression {
179 public:
180 Label arg;
181
182 LabelAddressExpr( const Label &arg );
183 LabelAddressExpr( const LabelAddressExpr & other );
184 virtual ~LabelAddressExpr();
185
186 virtual LabelAddressExpr * clone() const { return new LabelAddressExpr( * this ); }
187 virtual void accept( Visitor & v ) { v.visit( this ); }
188 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
189 virtual void print( std::ostream & os, Indenter indent = {} ) const;
190};
191
192/// CastExpr represents a type cast expression, e.g. (int)e
193class CastExpr : public Expression {
194 public:
195 Expression * arg;
196 bool isGenerated = true; // cast generated implicitly by code generation or explicit in program
197
198 CastExpr( Expression * arg, bool isGenerated = true );
199 CastExpr( Expression * arg, Type * toType, bool isGenerated = true );
200 CastExpr( Expression * arg, void * ) = delete; // prevent accidentally passing pointers for isGenerated in the first constructor
201 CastExpr( const CastExpr & other );
202 virtual ~CastExpr();
203
204 Expression * get_arg() const { return arg; }
205 void set_arg( Expression * newValue ) { arg = newValue; }
206
207 virtual CastExpr * clone() const { return new CastExpr( * this ); }
208 virtual void accept( Visitor & v ) { v.visit( this ); }
209 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
210 virtual void print( std::ostream & os, Indenter indent = {} ) const;
211};
212
213/// KeywordCastExpr represents a cast to 'keyword types', e.g. (thread &)t
214class KeywordCastExpr : public Expression {
215public:
216 Expression * arg;
217 enum Target {
218 Coroutine, Thread, Monitor, NUMBER_OF_TARGETS
219 } target;
220
221 KeywordCastExpr( Expression * arg, Target target );
222 KeywordCastExpr( const KeywordCastExpr & other );
223 virtual ~KeywordCastExpr();
224
225 const std::string & targetString() const;
226
227 virtual KeywordCastExpr * clone() const { return new KeywordCastExpr( * this ); }
228 virtual void accept( Visitor & v ) { v.visit( this ); }
229 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
230 virtual void print( std::ostream & os, Indenter indent = {} ) const;
231};
232
233/// VirtualCastExpr repersents a virtual dynamic cast, e.g. (virtual exception)e
234class VirtualCastExpr : public Expression {
235 public:
236 Expression * arg;
237
238 VirtualCastExpr( Expression * arg, Type * toType );
239 VirtualCastExpr( const VirtualCastExpr & other );
240 virtual ~VirtualCastExpr();
241
242 Expression * get_arg() const { return arg; }
243 void set_arg( Expression * newValue ) { arg = newValue; }
244
245 virtual VirtualCastExpr * clone() const { return new VirtualCastExpr( * this ); }
246 virtual void accept( Visitor & v ) { v.visit( this ); }
247 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
248 virtual void print( std::ostream & os, Indenter indent = {} ) const;
249};
250
251/// UntypedMemberExpr represents a member selection operation, e.g. q.p before processing by the expression analyzer
252class UntypedMemberExpr : public Expression {
253 public:
254 Expression * member;
255 Expression * aggregate;
256
257 UntypedMemberExpr( Expression * member, Expression * aggregate );
258 UntypedMemberExpr( const UntypedMemberExpr & other );
259 virtual ~UntypedMemberExpr();
260
261 Expression * get_member() const { return member; }
262 void set_member( Expression * newValue ) { member = newValue; }
263 Expression * get_aggregate() const { return aggregate; }
264 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
265
266 virtual UntypedMemberExpr * clone() const { return new UntypedMemberExpr( * this ); }
267 virtual void accept( Visitor & v ) { v.visit( this ); }
268 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
269 virtual void print( std::ostream & os, Indenter indent = {} ) const;
270};
271
272/// MemberExpr represents a member selection operation, e.g. q.p after processing by the expression analyzer.
273/// Does not take ownership of member.
274class MemberExpr : public Expression {
275 public:
276 DeclarationWithType * member;
277 Expression * aggregate;
278
279 MemberExpr( DeclarationWithType * member, Expression * aggregate );
280 MemberExpr( const MemberExpr & other );
281 virtual ~MemberExpr();
282
283 DeclarationWithType * get_member() const { return member; }
284 void set_member( DeclarationWithType * newValue ) { member = newValue; }
285 Expression * get_aggregate() const { return aggregate; }
286 void set_aggregate( Expression * newValue ) { aggregate = newValue; }
287
288 virtual MemberExpr * clone() const { return new MemberExpr( * this ); }
289 virtual void accept( Visitor & v ) { v.visit( this ); }
290 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
291 virtual void print( std::ostream & os, Indenter indent = {} ) const;
292};
293
294/// VariableExpr represents an expression that simply refers to the value of a named variable.
295/// Does not take ownership of var.
296class VariableExpr : public Expression {
297 public:
298 DeclarationWithType * var;
299
300 VariableExpr();
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 = nullptr;
596
597 ImplicitCopyCtorExpr( ApplicationExpr * callExpr );
598 ImplicitCopyCtorExpr( const ImplicitCopyCtorExpr & other );
599 virtual ~ImplicitCopyCtorExpr();
600
601 virtual ImplicitCopyCtorExpr * clone() const { return new ImplicitCopyCtorExpr( * this ); }
602 virtual void accept( Visitor & v ) { v.visit( this ); }
603 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
604 virtual void print( std::ostream & os, Indenter indent = {} ) const;
605};
606
607/// ConstructorExpr represents the use of a constructor in an expression context, e.g. int * x = malloc() { 5 };
608class ConstructorExpr : public Expression {
609public:
610 Expression * callExpr;
611
612 ConstructorExpr( Expression * callExpr );
613 ConstructorExpr( const ConstructorExpr & other );
614 ~ConstructorExpr();
615
616 Expression * get_callExpr() const { return callExpr; }
617 void set_callExpr( Expression * newValue ) { callExpr = newValue; }
618
619 virtual ConstructorExpr * clone() const { return new ConstructorExpr( * this ); }
620 virtual void accept( Visitor & v ) { v.visit( this ); }
621 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
622 virtual void print( std::ostream & os, Indenter indent = {} ) const;
623};
624
625/// CompoundLiteralExpr represents a C99 'compound literal'
626class CompoundLiteralExpr : public Expression {
627 public:
628 Initializer * initializer;
629
630 CompoundLiteralExpr( Type * type, Initializer * initializer );
631 CompoundLiteralExpr( const CompoundLiteralExpr & other );
632 virtual ~CompoundLiteralExpr();
633
634 Initializer * get_initializer() const { return initializer; }
635 void set_initializer( Initializer * i ) { initializer = i; }
636
637 virtual CompoundLiteralExpr * clone() const { return new CompoundLiteralExpr( * this ); }
638 virtual void accept( Visitor & v ) { v.visit( this ); }
639 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
640 virtual void print( std::ostream & os, Indenter indent = {} ) const;
641};
642
643/// RangeExpr represents a range e.g. '3 ... 5' or '1~10'
644class RangeExpr : public Expression {
645 public:
646 Expression * low, * high;
647
648 RangeExpr( Expression * low, Expression * high );
649 RangeExpr( const RangeExpr & other );
650
651 Expression * get_low() const { return low; }
652 Expression * get_high() const { return high; }
653 RangeExpr * set_low( Expression * low ) { RangeExpr::low = low; return this; }
654 RangeExpr * set_high( Expression * high ) { RangeExpr::high = high; return this; }
655
656 virtual RangeExpr * clone() const { return new RangeExpr( * this ); }
657 virtual void accept( Visitor & v ) { v.visit( this ); }
658 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
659 virtual void print( std::ostream & os, Indenter indent = {} ) const;
660};
661
662/// UntypedTupleExpr represents a tuple expression ( [a, b, c] ) before resolution
663class UntypedTupleExpr : public Expression {
664 public:
665 std::list<Expression*> exprs;
666
667 UntypedTupleExpr( const std::list< Expression * > & exprs );
668 UntypedTupleExpr( const UntypedTupleExpr & other );
669 virtual ~UntypedTupleExpr();
670
671 std::list<Expression*>& get_exprs() { return exprs; }
672
673 virtual UntypedTupleExpr * clone() const { return new UntypedTupleExpr( * this ); }
674 virtual void accept( Visitor & v ) { v.visit( this ); }
675 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
676 virtual void print( std::ostream & os, Indenter indent = {} ) const;
677};
678
679/// TupleExpr represents a tuple expression ( [a, b, c] )
680class TupleExpr : public Expression {
681 public:
682 std::list<Expression*> exprs;
683
684 TupleExpr( const std::list< Expression * > & exprs );
685 TupleExpr( const TupleExpr & other );
686 virtual ~TupleExpr();
687
688 std::list<Expression*>& get_exprs() { return exprs; }
689
690 virtual TupleExpr * clone() const { return new TupleExpr( * this ); }
691 virtual void accept( Visitor & v ) { v.visit( this ); }
692 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
693 virtual void print( std::ostream & os, Indenter indent = {} ) const;
694};
695
696/// TupleIndexExpr represents an element selection operation on a tuple value, e.g. t.3 after processing by the expression analyzer
697class TupleIndexExpr : public Expression {
698 public:
699 Expression * tuple;
700 unsigned int index;
701
702 TupleIndexExpr( Expression * tuple, unsigned int index );
703 TupleIndexExpr( const TupleIndexExpr & other );
704 virtual ~TupleIndexExpr();
705
706 Expression * get_tuple() const { return tuple; }
707 int get_index() const { return index; }
708 TupleIndexExpr * set_tuple( Expression * newValue ) { tuple = newValue; return this; }
709 TupleIndexExpr * set_index( unsigned int newValue ) { index = newValue; return this; }
710
711 virtual TupleIndexExpr * clone() const { return new TupleIndexExpr( * this ); }
712 virtual void accept( Visitor & v ) { v.visit( this ); }
713 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
714 virtual void print( std::ostream & os, Indenter indent = {} ) const;
715};
716
717/// 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
718class TupleAssignExpr : public Expression {
719 public:
720 StmtExpr * stmtExpr = nullptr;
721
722 TupleAssignExpr( const std::list< Expression * > & assigns, const std::list< ObjectDecl * > & tempDecls );
723 TupleAssignExpr( const TupleAssignExpr & other );
724 virtual ~TupleAssignExpr();
725
726 TupleAssignExpr * set_stmtExpr( StmtExpr * newValue ) { stmtExpr = newValue; return this; }
727 StmtExpr * get_stmtExpr() const { return stmtExpr; }
728
729 virtual TupleAssignExpr * clone() const { return new TupleAssignExpr( * this ); }
730 virtual void accept( Visitor & v ) { v.visit( this ); }
731 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
732 virtual void print( std::ostream & os, Indenter indent = {} ) const;
733
734 friend class ConverterNewToOld;
735 private:
736 TupleAssignExpr( StmtExpr * stmts );
737};
738
739/// StmtExpr represents a GCC 'statement expression', e.g. ({ int x = 5; x; })
740class StmtExpr : public Expression {
741public:
742 CompoundStmt * statements;
743 std::list< ObjectDecl * > returnDecls; // return variable(s) for stmt expression
744 std::list< Expression * > dtors; // destructor(s) for return variable(s)
745
746 // readonly
747 ExprStmt * resultExpr = nullptr;
748
749 StmtExpr( CompoundStmt * statements );
750 StmtExpr( const StmtExpr & other );
751 virtual ~StmtExpr();
752
753 CompoundStmt * get_statements() const { return statements; }
754 StmtExpr * set_statements( CompoundStmt * newValue ) { statements = newValue; return this; }
755
756 // call to set the result type of this StmtExpr based on its body
757 void computeResult();
758
759 std::list< ObjectDecl * > & get_returnDecls() { return returnDecls; }
760 std::list< Expression * > & get_dtors() { return dtors; }
761
762 virtual StmtExpr * clone() const { return new StmtExpr( * this ); }
763 virtual void accept( Visitor & v ) { v.visit( this ); }
764 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
765 virtual void print( std::ostream & os, Indenter indent = {} ) const;
766};
767
768class UniqueExpr : public Expression {
769public:
770 Expression * expr;
771 ObjectDecl * object;
772 VariableExpr * var;
773
774 UniqueExpr( Expression * expr, long long idVal = -1 );
775 UniqueExpr( const UniqueExpr & other );
776 ~UniqueExpr();
777
778 Expression * get_expr() const { return expr; }
779 UniqueExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
780
781 ObjectDecl * get_object() const { return object; }
782 UniqueExpr * set_object( ObjectDecl * newValue ) { object = newValue; return this; }
783
784 VariableExpr * get_var() const { return var; }
785 UniqueExpr * set_var( VariableExpr * newValue ) { var = newValue; return this; }
786
787 int get_id() const { return id; }
788
789 virtual UniqueExpr * clone() const { return new UniqueExpr( * this ); }
790 virtual void accept( Visitor & v ) { v.visit( this ); }
791 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
792 virtual void print( std::ostream & os, Indenter indent = {} ) const;
793
794private:
795 int id;
796 static long long count;
797};
798
799struct InitAlternative {
800public:
801 Type * type = nullptr;
802 Designation * designation = nullptr;
803 InitAlternative( Type * type, Designation * designation );
804 InitAlternative( const InitAlternative & other );
805 InitAlternative & operator=( const Initializer & other ) = delete; // at the moment this isn't used, and I don't want to implement it
806 ~InitAlternative();
807};
808
809class UntypedInitExpr : public Expression {
810public:
811 Expression * expr;
812 std::list<InitAlternative> initAlts;
813
814 UntypedInitExpr( Expression * expr, const std::list<InitAlternative> & initAlts );
815 UntypedInitExpr( const UntypedInitExpr & other );
816 ~UntypedInitExpr();
817
818 Expression * get_expr() const { return expr; }
819 UntypedInitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
820
821 std::list<InitAlternative> & get_initAlts() { return initAlts; }
822
823 virtual UntypedInitExpr * clone() const { return new UntypedInitExpr( * this ); }
824 virtual void accept( Visitor & v ) { v.visit( this ); }
825 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
826 virtual void print( std::ostream & os, Indenter indent = {} ) const;
827};
828
829class InitExpr : public Expression {
830public:
831 Expression * expr;
832 Designation * designation;
833
834 InitExpr( Expression * expr, Designation * designation );
835 InitExpr( const InitExpr & other );
836 ~InitExpr();
837
838 Expression * get_expr() const { return expr; }
839 InitExpr * set_expr( Expression * newValue ) { expr = newValue; return this; }
840
841 Designation * get_designation() const { return designation; }
842 InitExpr * set_designation( Designation * newValue ) { designation = newValue; return this; }
843
844 virtual InitExpr * clone() const { return new InitExpr( * this ); }
845 virtual void accept( Visitor & v ) { v.visit( this ); }
846 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
847 virtual void print( std::ostream & os, Indenter indent = {} ) const;
848};
849
850/// expression that contains a deleted identifier - should never make it past the resolver.
851class DeletedExpr : public Expression {
852public:
853 Expression * expr;
854 BaseSyntaxNode * deleteStmt;
855
856 DeletedExpr( Expression * expr, BaseSyntaxNode * deleteStmt );
857 DeletedExpr( const DeletedExpr & other );
858 ~DeletedExpr();
859
860 virtual DeletedExpr * clone() const { return new DeletedExpr( * this ); }
861 virtual void accept( Visitor & v ) { v.visit( this ); }
862 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
863 virtual void print( std::ostream & os, Indenter indent = {} ) const;
864};
865
866/// expression wrapping the use of a default argument - should never make it past the resolver.
867class DefaultArgExpr : public Expression {
868public:
869 Expression * expr;
870
871 DefaultArgExpr( Expression * expr );
872 DefaultArgExpr( const DefaultArgExpr & other );
873 ~DefaultArgExpr();
874
875 virtual DefaultArgExpr * clone() const { return new DefaultArgExpr( * this ); }
876 virtual void accept( Visitor & v ) { v.visit( this ); }
877 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
878 virtual void print( std::ostream & os, Indenter indent = {} ) const;
879};
880
881/// C11 _Generic expression
882class GenericExpr : public Expression {
883public:
884 struct Association {
885 Type * type = nullptr;
886 Expression * expr = nullptr;
887 bool isDefault = false;
888
889 Association( Type * type, Expression * expr );
890 Association( Expression * expr );
891 Association( const Association & other );
892 Association & operator=( const Association & other ) = delete; // at the moment this isn't used, and I don't want to implement it
893 ~Association();
894 };
895
896 Expression * control;
897 std::list<Association> associations;
898
899 GenericExpr( Expression * control, const std::list<Association> & assoc );
900 GenericExpr( const GenericExpr & other );
901 virtual ~GenericExpr();
902
903 virtual GenericExpr * clone() const { return new GenericExpr( * this ); }
904 virtual void accept( Visitor & v ) { v.visit( this ); }
905 virtual Expression * acceptMutator( Mutator & m ) { return m.mutate( this ); }
906 virtual void print( std::ostream & os, Indenter indent = {} ) const;
907};
908
909// Local Variables: //
910// tab-width: 4 //
911// mode: c++ //
912// compile-command: "make install" //
913// End: //
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