[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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[65cdc1e] | 11 | // Last Modified By : Andrew Beach |
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| 12 | // Last Modified On : Wed Aug 9 10:19:00 2017 |
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| 13 | // Update Count : 22 |
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[0dd3a2f] | 14 | // |
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| 15 | |
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[6b0b624] | 16 | #pragma once |
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[51b7345] | 17 | |
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[ea6332d] | 18 | #include <iosfwd> // for ostream |
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| 19 | #include <list> // for list, list<>::const_iterator, list<>::it... |
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[bbbc067] | 20 | #include <vector> |
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[294647b] | 21 | |
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[ea6332d] | 22 | #include "BaseSyntaxNode.h" // for BaseSyntaxNode |
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| 23 | #include "Mutator.h" // for Mutator |
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| 24 | #include "Visitor.h" // for Visitor |
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| 25 | |
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| 26 | class Expression; |
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| 27 | class Statement; |
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[51b7345] | 28 | |
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[e4d829b] | 29 | // Designation: list of designator (NameExpr, VariableExpr, and ConstantExpr) expressions that specify an object being initialized. |
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| 30 | class Designation : public BaseSyntaxNode { |
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| 31 | public: |
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[65cdc1e] | 32 | std::list< Expression * > designators; |
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| 33 | |
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[e4d829b] | 34 | Designation( const std::list< Expression * > & designators ); |
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| 35 | Designation( const Designation & other ); |
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| 36 | virtual ~Designation(); |
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| 37 | |
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[fa16264] | 38 | virtual Designation * clone() const override { return new Designation( *this ); }; |
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[e149f77] | 39 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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[fa16264] | 40 | virtual Designation * acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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[50377a4] | 41 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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[e4d829b] | 42 | }; |
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| 43 | |
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[43e0949] | 44 | const std::vector<Designation *> noDesignators; |
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[f0121d7] | 45 | |
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[51b7345] | 46 | // Initializer: base class for object initializers (provide default values) |
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[294647b] | 47 | class Initializer : public BaseSyntaxNode { |
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[d9a0e76] | 48 | public: |
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[974906e2] | 49 | Initializer( bool maybeConstructed ); |
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[70f89d00] | 50 | Initializer( const Initializer & other ); |
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[0dd3a2f] | 51 | virtual ~Initializer(); |
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| 52 | |
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[974906e2] | 53 | bool get_maybeConstructed() { return maybeConstructed; } |
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| 54 | |
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[fa16264] | 55 | virtual Initializer *clone() const override = 0; |
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[e149f77] | 56 | virtual void accept( Visitor &v ) override = 0; |
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[fa16264] | 57 | virtual Initializer *acceptMutator( Mutator &m ) override = 0; |
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[50377a4] | 58 | virtual void print( std::ostream &os, Indenter indent = {} ) const override = 0; |
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[d9a0e76] | 59 | private: |
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[974906e2] | 60 | bool maybeConstructed; |
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[51b7345] | 61 | }; |
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| 62 | |
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| 63 | // SingleInit represents an initializer for a common object (e.g., int x = 4) |
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[d9a0e76] | 64 | class SingleInit : public Initializer { |
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| 65 | public: |
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[65cdc1e] | 66 | //Constant *value; |
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| 67 | Expression *value; // has to be a compile-time constant |
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| 68 | |
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[e4d829b] | 69 | SingleInit( Expression *value, bool maybeConstructed = false ); |
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[0dd3a2f] | 70 | SingleInit( const SingleInit &other ); |
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| 71 | virtual ~SingleInit(); |
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[974906e2] | 72 | |
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[0dd3a2f] | 73 | Expression *get_value() { return value; } |
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| 74 | void set_value( Expression *newValue ) { value = newValue; } |
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| 75 | |
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[e149f77] | 76 | virtual SingleInit *clone() const override { return new SingleInit( *this); } |
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| 77 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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| 78 | virtual Initializer *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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[50377a4] | 79 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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[51b7345] | 80 | }; |
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| 81 | |
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[d9a0e76] | 82 | // ListInit represents an initializer that is composed recursively of a list of initializers; this is used to initialize |
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| 83 | // an array or aggregate |
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| 84 | class ListInit : public Initializer { |
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| 85 | public: |
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[bbbc067] | 86 | std::vector< Initializer * > initializers; // order *is* important |
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[43e0949] | 87 | std::vector<Designation *> designations; // order/length is consistent with initializers |
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[65cdc1e] | 88 | |
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[bbbc067] | 89 | ListInit( const std::vector< Initializer * > &initializers, |
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[43e0949] | 90 | const std::vector<Designation *> &designators = {}, bool maybeConstructed = false ); |
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[fc638d2] | 91 | ListInit( const ListInit & other ); |
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[0dd3a2f] | 92 | virtual ~ListInit(); |
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| 93 | |
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[bbbc067] | 94 | typedef std::vector< Initializer * >::iterator iterator; |
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| 95 | typedef std::vector< Initializer * >::const_iterator const_iterator; |
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[4d2434a] | 96 | iterator begin() { return initializers.begin(); } |
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| 97 | iterator end() { return initializers.end(); } |
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[e4d829b] | 98 | const_iterator begin() const { return initializers.begin(); } |
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| 99 | const_iterator end() const { return initializers.end(); } |
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[0dd3a2f] | 100 | |
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[e149f77] | 101 | virtual ListInit *clone() const override { return new ListInit( *this ); } |
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| 102 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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| 103 | virtual Initializer *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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[50377a4] | 104 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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[51b7345] | 105 | }; |
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| 106 | |
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[71f4e4f] | 107 | // ConstructorInit represents an initializer that is either a constructor expression or |
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| 108 | // a C-style initializer. |
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[64ac636] | 109 | // It should not be necessary to create ConstructorInit nodes manually. Instead, set maybeConstructed |
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| 110 | // to true on SingleInit or ListInit constructors if object should be constructed. |
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[71f4e4f] | 111 | class ConstructorInit : public Initializer { |
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| 112 | public: |
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[65cdc1e] | 113 | Statement * ctor; |
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| 114 | Statement * dtor; |
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[1189946] | 115 | // C-style initializer made up of SingleInit and ListInit nodes to use as a fallback |
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| 116 | // if an appropriate constructor definition is not found by the resolver |
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| 117 | Initializer * init; |
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[65cdc1e] | 118 | |
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[f1b1e4c] | 119 | ConstructorInit( Statement * ctor, Statement * dtor, Initializer * init ); |
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[70f89d00] | 120 | ConstructorInit( const ConstructorInit &other ); |
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[71f4e4f] | 121 | virtual ~ConstructorInit(); |
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| 122 | |
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[5b2f5bb] | 123 | void set_ctor( Statement * newValue ) { ctor = newValue; } |
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| 124 | Statement * get_ctor() const { return ctor; } |
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| 125 | void set_dtor( Statement * newValue ) { dtor = newValue; } |
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| 126 | Statement * get_dtor() const { return dtor; } |
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[71f4e4f] | 127 | void set_init( Initializer * newValue ) { init = newValue; } |
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| 128 | Initializer * get_init() const { return init; } |
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| 129 | |
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[e149f77] | 130 | ConstructorInit *clone() const override { return new ConstructorInit( *this ); } |
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| 131 | virtual void accept( Visitor &v ) override { v.visit( this ); } |
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| 132 | virtual Initializer *acceptMutator( Mutator &m ) override { return m.mutate( this ); } |
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[50377a4] | 133 | virtual void print( std::ostream &os, Indenter indent = {} ) const override; |
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[71f4e4f] | 134 | |
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| 135 | private: |
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| 136 | }; |
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| 137 | |
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[0dd3a2f] | 138 | // Local Variables: // |
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| 139 | // tab-width: 4 // |
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| 140 | // mode: c++ // |
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| 141 | // compile-command: "make install" // |
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| 142 | // End: // |
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