[0dd3a2f] | 1 | //
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| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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| 3 | //
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| 4 | // The contents of this file are covered under the licence agreement in the
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| 5 | // file "LICENCE" distributed with Cforall.
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| 6 | //
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[974906e2] | 7 | // Initializer.h --
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[0dd3a2f] | 8 | //
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| 9 | // Author : Richard C. Bilson
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| 10 | // Created On : Mon May 18 07:44:20 2015
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[6013bd7] | 11 | // Last Modified By : Peter A. Buhr
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[6b0b624] | 12 | // Last Modified On : Sat Jul 22 09:52:02 2017
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| 13 | // Update Count : 21
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[0dd3a2f] | 14 | //
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| 15 |
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[6b0b624] | 16 | #pragma once
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[51b73452] | 17 |
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[294647b] | 18 | #include <cassert>
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| 19 |
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| 20 | #include "BaseSyntaxNode.h"
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[51b73452] | 21 | #include "Mutator.h"
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[294647b] | 22 | #include "SynTree.h"
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[70f89d00] | 23 | #include "Type.h"
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[294647b] | 24 | #include "Visitor.h"
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[51b73452] | 25 |
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[e4d829b] | 26 | // Designation: list of designator (NameExpr, VariableExpr, and ConstantExpr) expressions that specify an object being initialized.
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| 27 | class Designation : public BaseSyntaxNode {
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| 28 | public:
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| 29 | Designation( const std::list< Expression * > & designators );
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| 30 | Designation( const Designation & other );
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| 31 | virtual ~Designation();
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| 32 |
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| 33 | std::list< Expression * > & get_designators() { return designators; }
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| 34 |
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| 35 | virtual Designation * clone() const { return new Designation( *this ); };
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| 36 | virtual void accept( Visitor &v ) { v.visit( this ); }
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| 37 | virtual Designation * acceptMutator( Mutator &m ) { return m.mutate( this ); }
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| 38 | virtual void print( std::ostream &os, int indent = 0 ) const;
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| 39 | private:
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| 40 | std::list< Expression * > designators;
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| 41 | };
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| 42 |
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| 43 | const std::list<Designation *> noDesignators;
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[f0121d7] | 44 |
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[51b73452] | 45 | // Initializer: base class for object initializers (provide default values)
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[294647b] | 46 | class Initializer : public BaseSyntaxNode {
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[d9a0e76] | 47 | public:
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[974906e2] | 48 | Initializer( bool maybeConstructed );
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[70f89d00] | 49 | Initializer( const Initializer & other );
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[0dd3a2f] | 50 | virtual ~Initializer();
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| 51 |
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[974906e2] | 52 | bool get_maybeConstructed() { return maybeConstructed; }
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| 53 |
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[0dd3a2f] | 54 | virtual Initializer *clone() const = 0;
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| 55 | virtual void accept( Visitor &v ) = 0;
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| 56 | virtual Initializer *acceptMutator( Mutator &m ) = 0;
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[e4d829b] | 57 | virtual void print( std::ostream &os, int indent = 0 ) const = 0;
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[d9a0e76] | 58 | private:
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[974906e2] | 59 | bool maybeConstructed;
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[51b73452] | 60 | };
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| 61 |
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| 62 | // SingleInit represents an initializer for a common object (e.g., int x = 4)
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[d9a0e76] | 63 | class SingleInit : public Initializer {
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| 64 | public:
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[e4d829b] | 65 | SingleInit( Expression *value, bool maybeConstructed = false );
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[0dd3a2f] | 66 | SingleInit( const SingleInit &other );
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| 67 | virtual ~SingleInit();
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[974906e2] | 68 |
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[0dd3a2f] | 69 | Expression *get_value() { return value; }
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| 70 | void set_value( Expression *newValue ) { value = newValue; }
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| 71 |
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[70f89d00] | 72 | virtual SingleInit *clone() const { return new SingleInit( *this); }
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[0dd3a2f] | 73 | virtual void accept( Visitor &v ) { v.visit( this ); }
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| 74 | virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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[e4d829b] | 75 | virtual void print( std::ostream &os, int indent = 0 ) const;
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[d9a0e76] | 76 | private:
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[0dd3a2f] | 77 | //Constant *value;
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| 78 | Expression *value; // has to be a compile-time constant
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[51b73452] | 79 | };
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| 80 |
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[d9a0e76] | 81 | // ListInit represents an initializer that is composed recursively of a list of initializers; this is used to initialize
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| 82 | // an array or aggregate
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| 83 | class ListInit : public Initializer {
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| 84 | public:
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[5b40f30] | 85 | ListInit( const std::list<Initializer*> &initializers,
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[e4d829b] | 86 | const std::list<Designation *> &designators = {}, bool maybeConstructed = false );
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[fc638d2] | 87 | ListInit( const ListInit & other );
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[0dd3a2f] | 88 | virtual ~ListInit();
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| 89 |
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[e4d829b] | 90 | std::list<Designation *> & get_designations() { return designations; }
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| 91 | std::list<Initializer *> & get_initializers() { return initializers; }
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[0dd3a2f] | 92 |
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[4d2434a] | 93 | typedef std::list<Initializer*>::iterator iterator;
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[e4d829b] | 94 | typedef std::list<Initializer*>::const_iterator const_iterator;
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[4d2434a] | 95 | iterator begin() { return initializers.begin(); }
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| 96 | iterator end() { return initializers.end(); }
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[e4d829b] | 97 | const_iterator begin() const { return initializers.begin(); }
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| 98 | const_iterator end() const { return initializers.end(); }
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[0dd3a2f] | 99 |
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[70f89d00] | 100 | virtual ListInit *clone() const { return new ListInit( *this ); }
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[0dd3a2f] | 101 | virtual void accept( Visitor &v ) { v.visit( this ); }
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| 102 | virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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[e4d829b] | 103 | virtual void print( std::ostream &os, int indent = 0 ) const;
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[d9a0e76] | 104 | private:
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[e4d829b] | 105 | std::list<Initializer *> initializers; // order *is* important
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| 106 | std::list<Designation *> designations; // order/length is consistent with initializers
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[51b73452] | 107 | };
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| 108 |
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[71f4e4f] | 109 | // ConstructorInit represents an initializer that is either a constructor expression or
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| 110 | // a C-style initializer.
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[64ac636] | 111 | // It should not be necessary to create ConstructorInit nodes manually. Instead, set maybeConstructed
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| 112 | // to true on SingleInit or ListInit constructors if object should be constructed.
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[71f4e4f] | 113 | class ConstructorInit : public Initializer {
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| 114 | public:
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[f1b1e4c] | 115 | ConstructorInit( Statement * ctor, Statement * dtor, Initializer * init );
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[70f89d00] | 116 | ConstructorInit( const ConstructorInit &other );
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[71f4e4f] | 117 | virtual ~ConstructorInit();
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| 118 |
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[5b2f5bb] | 119 | void set_ctor( Statement * newValue ) { ctor = newValue; }
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| 120 | Statement * get_ctor() const { return ctor; }
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| 121 | void set_dtor( Statement * newValue ) { dtor = newValue; }
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| 122 | Statement * get_dtor() const { return dtor; }
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[71f4e4f] | 123 | void set_init( Initializer * newValue ) { init = newValue; }
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| 124 | Initializer * get_init() const { return init; }
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| 125 |
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[70f89d00] | 126 | ConstructorInit *clone() const { return new ConstructorInit( *this ); }
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[71f4e4f] | 127 | virtual void accept( Visitor &v ) { v.visit( this ); }
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| 128 | virtual Initializer *acceptMutator( Mutator &m ) { return m.mutate( this ); }
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[e4d829b] | 129 | virtual void print( std::ostream &os, int indent = 0 ) const;
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[71f4e4f] | 130 |
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| 131 | private:
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[5b2f5bb] | 132 | Statement * ctor;
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| 133 | Statement * dtor;
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[71f4e4f] | 134 | // C-style initializer made up of SingleInit and ListInit nodes to use as a fallback
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| 135 | // if an appropriate constructor definition is not found by the resolver
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| 136 | Initializer * init;
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| 137 | };
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| 138 |
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[e4d829b] | 139 | std::ostream & operator<<( std::ostream & out, const Initializer * init );
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| 140 | std::ostream & operator<<( std::ostream & out, const Designation * des );
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[7a69460] | 141 |
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[0dd3a2f] | 142 | // Local Variables: //
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| 143 | // tab-width: 4 //
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| 144 | // mode: c++ //
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| 145 | // compile-command: "make install" //
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| 146 | // End: //
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