source: src/SynTree/Initializer.h @ 5b40f30

aaron-thesisarm-ehcleanup-dtorsctordeferred_resndemanglerenumforall-pointer-decaygc_noraiijacob/cs343-translationjenkins-sandboxmemorynew-astnew-ast-unique-exprnew-envno_listpersistent-indexerresolv-newwith_gc
Last change on this file since 5b40f30 was 5b40f30, checked in by Rob Schluntz <rschlunt@…>, 6 years ago

generate correct empty list initializer, ensure function return value is not incorrectly destructed before it is returned, do not add src parameter to autogenerated routines when they take a single argument

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File size: 4.7 KB
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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// Initializer.h --
8//
9// Author           : Richard C. Bilson
10// Created On       : Mon May 18 07:44:20 2015
11// Last Modified By : Rob Schluntz
12// Last Modified On : Tue Feb 09 14:40:15 2016
13// Update Count     : 19
14//
15
16#ifndef INITIALIZER_H
17#define INITIALIZER_H
18
19#include "SynTree.h"
20#include "Visitor.h"
21#include "Mutator.h"
22
23#include <cassert>
24
25// Initializer: base class for object initializers (provide default values)
26class Initializer {
27  public:
28        //      Initializer( std::string _name = std::string(""), int _pos = 0 );
29        Initializer( bool maybeConstructed );
30        virtual ~Initializer();
31
32        static std::string designator_name( Expression *designator );
33
34        //      void set_name( std::string newValue ) { name = newValue; }
35        //      std::string get_name() const { return name; }
36
37        //      void set_pos( int newValue ) { pos = newValue; }
38        //      int get_pos() const { return pos; }
39        virtual void set_designators( std::list<Expression *> & ) { assert(false); }
40        virtual std::list<Expression *> &get_designators() {
41                assert(false);
42                std::list<Expression *> *ret = 0; return *ret;  // never reached
43        }
44
45        bool get_maybeConstructed() { return maybeConstructed; }
46
47        virtual Initializer *clone() const = 0;
48        virtual void accept( Visitor &v ) = 0;
49        virtual Initializer *acceptMutator( Mutator &m ) = 0;
50        virtual void print( std::ostream &os, int indent = 0 );
51  private:
52        //      std::string name;
53        //      int pos;
54        bool maybeConstructed;
55};
56
57// SingleInit represents an initializer for a common object (e.g., int x = 4)
58class SingleInit : public Initializer {
59  public:
60        SingleInit( Expression *value, const std::list< Expression *> &designators, bool maybeConstructed = false );
61        SingleInit( const SingleInit &other );
62        virtual ~SingleInit();
63
64        Expression *get_value() { return value; }
65        void set_value( Expression *newValue ) { value = newValue; }
66
67        void set_designators( std::list<Expression *> &newValue ) { designators = newValue; }
68        std::list<Expression *> &get_designators() { return designators; }
69
70        virtual SingleInit *clone() const;
71        virtual void accept( Visitor &v ) { v.visit( this ); }
72        virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
73        virtual void print( std::ostream &os, int indent = 0 );
74  private:
75        //Constant *value;
76        Expression *value;      // has to be a compile-time constant
77        std::list< Expression * > designators;
78};
79
80// ListInit represents an initializer that is composed recursively of a list of initializers; this is used to initialize
81// an array or aggregate
82class ListInit : public Initializer {
83  public:
84        ListInit( const std::list<Initializer*> &initializers,
85                          const std::list<Expression *> &designators, bool maybeConstructed = false );
86        virtual ~ListInit();
87
88        void set_designators( std::list<Expression *> &newValue ) { designators = newValue; }
89        std::list<Expression *> &get_designators() { return designators; }
90        void set_initializers( std::list<Initializer*> &newValue ) { initializers = newValue; }
91        std::list<Initializer*> &get_initializers() { return initializers; }
92
93        std::list<Initializer*>::iterator begin_initializers() { return initializers.begin(); }
94        std::list<Initializer*>::iterator end_initializers() { return initializers.end(); }
95
96        virtual ListInit *clone() const;
97        virtual void accept( Visitor &v ) { v.visit( this ); }
98        virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
99        virtual void print( std::ostream &os, int indent = 0 );
100  private:
101        std::list<Initializer*> initializers;  // order *is* important
102        std::list<Expression *> designators;
103};
104
105// ConstructorInit represents an initializer that is either a constructor expression or
106// a C-style initializer.
107class ConstructorInit : public Initializer {
108  public:
109        ConstructorInit( Expression * ctor, Initializer * init );
110        virtual ~ConstructorInit();
111
112        void set_ctor( Expression * newValue ) { ctor = newValue; }
113        Expression * get_ctor() const { return ctor; }
114        void set_init( Initializer * newValue ) { init = newValue; }
115        Initializer * get_init() const { return init; }
116
117        virtual ConstructorInit *clone() const;
118        virtual void accept( Visitor &v ) { v.visit( this ); }
119        virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
120        virtual void print( std::ostream &os, int indent = 0 );
121
122  private:
123        Expression * ctor;
124        // C-style initializer made up of SingleInit and ListInit nodes to use as a fallback
125        // if an appropriate constructor definition is not found by the resolver
126        Initializer * init;
127};
128
129#endif // INITIALIZER_H
130
131// Local Variables: //
132// tab-width: 4 //
133// mode: c++ //
134// compile-command: "make install" //
135// End: //
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