[2bb4a01] | 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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| 7 | // Type.hpp -- |
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| 8 | // |
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| 9 | // Author : Aaron B. Moss |
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| 10 | // Created On : Thu May 9 10:00:00 2019 |
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| 11 | // Last Modified By : Aaron B. Moss |
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| 12 | // Last Modified On : Thu May 9 10:00:00 2019 |
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| 13 | // Update Count : 1 |
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| 14 | // |
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| 15 | |
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| 16 | #pragma once |
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| 17 | |
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[9e1d485] | 18 | #include <cassert> |
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| 19 | #include <cstddef> // for nullptr_t |
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| 20 | #include <cstdint> // for uintptr_t |
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| 21 | #include <utility> // for move |
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| 22 | #include <vector> |
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| 23 | |
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| 24 | #include "CVQualifiers.hpp" |
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[9b4f329] | 25 | #include "Decl.hpp" // for AggregateDecl subclasses |
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[9e1d485] | 26 | #include "Fwd.hpp" |
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[d76c588] | 27 | #include "Node.hpp" // for Node, ptr, ptr_base |
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[9e1d485] | 28 | #include "TypeVar.hpp" |
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| 29 | #include "Visitor.hpp" |
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[2bb4a01] | 30 | |
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[f3cc5b6] | 31 | // Must be included in *all* AST classes; should be #undef'd at the end of the file |
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[acd80b4] | 32 | #define MUTATE_FRIEND template<typename node_t> friend node_t * mutate(const node_t * node); |
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[f3cc5b6] | 33 | |
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[2bb4a01] | 34 | namespace ast { |
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| 35 | |
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| 36 | class Type : public Node { |
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[9e1d485] | 37 | public: |
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[54e41b3] | 38 | CV::Qualifiers qualifiers; |
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[c829320] | 39 | std::vector<ptr<Attribute>> attributes; |
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[87701b6] | 40 | |
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[1ae47de] | 41 | Type( CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 42 | : qualifiers(q), attributes(std::move(as)) {} |
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[54e41b3] | 43 | |
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| 44 | bool is_const() const { return qualifiers.is_const; } |
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| 45 | bool is_volatile() const { return qualifiers.is_volatile; } |
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| 46 | bool is_restrict() const { return qualifiers.is_restrict; } |
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| 47 | bool is_lvalue() const { return qualifiers.is_lvalue; } |
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| 48 | bool is_mutex() const { return qualifiers.is_mutex; } |
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| 49 | bool is_atomic() const { return qualifiers.is_atomic; } |
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| 50 | |
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[76ed81f] | 51 | Type * set_const( bool v ) { qualifiers.is_const = v; return this; } |
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[dafe9e1] | 52 | Type * set_volatile( bool v ) { qualifiers.is_volatile = v; return this; } |
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[76ed81f] | 53 | Type * set_restrict( bool v ) { qualifiers.is_restrict = v; return this; } |
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| 54 | Type * set_lvalue( bool v ) { qualifiers.is_lvalue = v; return this; } |
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| 55 | Type * set_mutex( bool v ) { qualifiers.is_mutex = v; return this; } |
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| 56 | Type * set_atomic( bool v ) { qualifiers.is_atomic = v; return this; } |
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[9e1d485] | 57 | |
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| 58 | /// How many elemental types are represented by this type |
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| 59 | virtual unsigned size() const { return 1; } |
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| 60 | /// Is this a void type? |
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| 61 | virtual bool isVoid() const { return size() == 0; } |
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| 62 | /// Get the i'th component of this type |
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[d76c588] | 63 | virtual const Type * getComponent( unsigned i ) const; |
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[9e1d485] | 64 | |
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| 65 | /// type without outer pointers and arrays |
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[d76c588] | 66 | const Type * stripDeclarator() const; |
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[9e1d485] | 67 | /// type without outer references |
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[d76c588] | 68 | const Type * stripReferences() const; |
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[9e1d485] | 69 | /// number of reference occuring consecutively on the outermost layer of this type |
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| 70 | /// (i.e. do not count references nested within other types) |
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| 71 | virtual unsigned referenceDepth() const { return 0; } |
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| 72 | /// true iff type is complete type (i.e. compiler knows the size, alignment, and layout) |
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| 73 | virtual bool isComplete() const { return true; } |
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| 74 | |
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[69bafd2] | 75 | virtual const Type * accept( Visitor & v ) const override = 0; |
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[9e1d485] | 76 | private: |
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| 77 | virtual Type * clone() const override = 0; |
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[f3cc5b6] | 78 | MUTATE_FRIEND |
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[9e1d485] | 79 | }; |
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| 80 | |
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[ee574a2] | 81 | /// Clear/reset the qualifiers on this type, cloning only if necessary |
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[d76c588] | 82 | template< enum Node::ref_type ref_t > |
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[ee574a2] | 83 | void reset_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q = {} ) { |
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| 84 | if ( p->qualifiers.val != q.val ) p.get_and_mutate()->qualifiers = q; |
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[d76c588] | 85 | } |
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| 86 | |
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[ee574a2] | 87 | /// Add the specified qualifiers to this type, cloning only if necessary |
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[d76c588] | 88 | template< enum Node::ref_type ref_t > |
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[ee574a2] | 89 | void add_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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| 90 | if ( ( p->qualifiers.val & q.val ) != q.val ) p.get_and_mutate()->qualifiers |= q; |
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| 91 | } |
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| 92 | |
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| 93 | /// Remove the specified qualifiers from this type, cloning only if necessary |
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| 94 | template< enum Node::ref_type ref_t > |
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| 95 | void remove_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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| 96 | if ( ( p->qualifiers.val & q.val ) != 0 ) p.get_and_mutate()->qualifiers -= q; |
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[d76c588] | 97 | } |
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| 98 | |
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[9e1d485] | 99 | /// `void` |
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| 100 | class VoidType final : public Type { |
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| 101 | public: |
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| 102 | VoidType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 103 | |
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[9e1d485] | 104 | unsigned size() const override { return 0; } |
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| 105 | bool isVoid() const override { return true; } |
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| 106 | bool isComplete() const override { return false; } |
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| 107 | |
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[69bafd2] | 108 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 109 | private: |
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| 110 | VoidType * clone() const override { return new VoidType{ *this }; } |
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[f3cc5b6] | 111 | MUTATE_FRIEND |
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[9e1d485] | 112 | }; |
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| 113 | |
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| 114 | /// Built-in arithmetic type |
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| 115 | class BasicType final : public Type { |
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| 116 | public: |
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| 117 | // GENERATED START, DO NOT EDIT |
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| 118 | // GENERATED BY BasicTypes-gen.cc |
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| 119 | enum Kind { |
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| 120 | Bool, |
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| 121 | Char, |
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| 122 | SignedChar, |
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| 123 | UnsignedChar, |
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| 124 | ShortSignedInt, |
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| 125 | ShortUnsignedInt, |
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| 126 | SignedInt, |
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| 127 | UnsignedInt, |
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| 128 | LongSignedInt, |
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| 129 | LongUnsignedInt, |
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| 130 | LongLongSignedInt, |
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| 131 | LongLongUnsignedInt, |
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| 132 | SignedInt128, |
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| 133 | UnsignedInt128, |
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| 134 | uFloat16, |
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| 135 | uFloat16Complex, |
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| 136 | uFloat32, |
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| 137 | uFloat32Complex, |
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| 138 | Float, |
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| 139 | FloatComplex, |
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| 140 | uFloat32x, |
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| 141 | uFloat32xComplex, |
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| 142 | uFloat64, |
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| 143 | uFloat64Complex, |
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| 144 | Double, |
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| 145 | DoubleComplex, |
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| 146 | uFloat64x, |
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| 147 | uFloat64xComplex, |
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| 148 | uuFloat80, |
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| 149 | uFloat128, |
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| 150 | uFloat128Complex, |
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| 151 | uuFloat128, |
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| 152 | LongDouble, |
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| 153 | LongDoubleComplex, |
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| 154 | uFloat128x, |
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| 155 | uFloat128xComplex, |
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| 156 | NUMBER_OF_BASIC_TYPES |
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| 157 | } kind; |
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| 158 | // GENERATED END |
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| 159 | |
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| 160 | /// xxx -- MAX_INTEGER_TYPE should probably be in BasicTypes-gen.cc, rather than hardcoded here |
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| 161 | enum { MAX_INTEGER_TYPE = UnsignedInt128 }; |
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| 162 | |
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| 163 | /// string names of basic types; generated to match with Kind |
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| 164 | static const char *typeNames[]; |
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| 165 | |
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[0f6a7752] | 166 | BasicType( Kind k, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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| 167 | : Type(q, std::move(as)), kind(k) {} |
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[9e1d485] | 168 | |
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| 169 | /// Check if this type represents an integer type |
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[3648d98] | 170 | bool isInteger() const { return (unsigned)kind <= (unsigned)MAX_INTEGER_TYPE; } |
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[9e1d485] | 171 | |
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[69bafd2] | 172 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 173 | private: |
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| 174 | BasicType * clone() const override { return new BasicType{ *this }; } |
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[f3cc5b6] | 175 | MUTATE_FRIEND |
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[9e1d485] | 176 | }; |
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| 177 | |
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| 178 | /// Pointer/array variable length? |
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| 179 | enum LengthFlag { FixedLen, VariableLen }; |
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| 180 | |
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| 181 | /// Pointer/array static dimension? |
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| 182 | enum DimensionFlag { DynamicDim, StaticDim }; |
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| 183 | |
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| 184 | /// Pointer type `T*` |
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| 185 | class PointerType final : public Type { |
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| 186 | public: |
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| 187 | ptr<Type> base; |
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| 188 | |
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| 189 | // In C99, pointer types can be qualified in many ways, e.g. `int a[ static 3 ]` |
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| 190 | ptr<Expr> dimension; |
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| 191 | LengthFlag isVarLen = FixedLen; |
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| 192 | DimensionFlag isStatic = DynamicDim; |
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| 193 | |
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| 194 | PointerType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b), dimension() {} |
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[87701b6] | 195 | PointerType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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[9e1d485] | 196 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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| 197 | |
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| 198 | // true if this pointer is actually an array |
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| 199 | bool isArray() const { return isVarLen || isStatic || dimension; } |
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| 200 | |
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| 201 | bool isComplete() const override { return ! isVarLen; } |
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| 202 | |
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[69bafd2] | 203 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 204 | private: |
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| 205 | PointerType * clone() const override { return new PointerType{ *this }; } |
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[f3cc5b6] | 206 | MUTATE_FRIEND |
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[9e1d485] | 207 | }; |
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| 208 | |
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| 209 | /// Array type `T[]` |
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| 210 | class ArrayType final : public Type { |
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| 211 | public: |
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| 212 | ptr<Type> base; |
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| 213 | ptr<Expr> dimension; |
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| 214 | LengthFlag isVarLen; |
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| 215 | DimensionFlag isStatic; |
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[2bb4a01] | 216 | |
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[87701b6] | 217 | ArrayType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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[9e1d485] | 218 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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| 219 | |
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| 220 | // array types are complete if they have a dimension expression or are |
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| 221 | // VLAs ('*' in parameter declaration), and incomplete otherwise. |
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| 222 | // See 6.7.6.2 |
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| 223 | bool isComplete() const override { return dimension || isVarLen; } |
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| 224 | |
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[69bafd2] | 225 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 226 | private: |
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| 227 | ArrayType * clone() const override { return new ArrayType{ *this }; } |
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[f3cc5b6] | 228 | MUTATE_FRIEND |
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[9e1d485] | 229 | }; |
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| 230 | |
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| 231 | /// Reference type `T&` |
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| 232 | class ReferenceType final : public Type { |
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| 233 | public: |
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| 234 | ptr<Type> base; |
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| 235 | |
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| 236 | ReferenceType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b) {} |
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| 237 | |
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| 238 | unsigned referenceDepth() const override { return base->referenceDepth() + 1; } |
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| 239 | |
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| 240 | // Since reference types act like value types, their size is the size of the base. |
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| 241 | // This makes it simple to cast the empty tuple to a reference type, since casts that increase |
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| 242 | // the number of values are disallowed. |
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| 243 | unsigned size() const override { return base->size(); } |
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| 244 | |
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[69bafd2] | 245 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 246 | private: |
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| 247 | ReferenceType * clone() const override { return new ReferenceType{ *this }; } |
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[f3cc5b6] | 248 | MUTATE_FRIEND |
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[2bb4a01] | 249 | }; |
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| 250 | |
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[9e1d485] | 251 | /// Qualified type `P.C` |
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| 252 | class QualifiedType final : public Type { |
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| 253 | public: |
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| 254 | ptr<Type> parent; |
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| 255 | ptr<Type> child; |
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| 256 | |
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[87701b6] | 257 | QualifiedType( const Type * p, const Type * c, CV::Qualifiers q = {} ) |
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[9e1d485] | 258 | : Type(q), parent(p), child(c) {} |
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| 259 | |
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[69bafd2] | 260 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 261 | private: |
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| 262 | QualifiedType * clone() const override { return new QualifiedType{ *this }; } |
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[f3cc5b6] | 263 | MUTATE_FRIEND |
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[9e1d485] | 264 | }; |
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| 265 | |
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| 266 | /// Base type for potentially forall-qualified types |
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| 267 | class ParameterizedType : public Type { |
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| 268 | public: |
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| 269 | using ForallList = std::vector<ptr<TypeDecl>>; |
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| 270 | |
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| 271 | ForallList forall; |
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| 272 | |
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[1ae47de] | 273 | ParameterizedType( ForallList&& fs = {}, CV::Qualifiers q = {}, |
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[c829320] | 274 | std::vector<ptr<Attribute>> && as = {} ) |
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| 275 | : Type(q, std::move(as)), forall(std::move(fs)) {} |
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[1ae47de] | 276 | |
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| 277 | ParameterizedType( CV::Qualifiers q, std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 278 | : Type(q, std::move(as)), forall() {} |
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[9e1d485] | 279 | |
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| 280 | private: |
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| 281 | virtual ParameterizedType * clone() const override = 0; |
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[f3cc5b6] | 282 | MUTATE_FRIEND |
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[9e1d485] | 283 | }; |
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| 284 | |
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| 285 | /// Function variable arguments flag |
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| 286 | enum ArgumentFlag { FixedArgs, VariableArgs }; |
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| 287 | |
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| 288 | /// Type of a function `[R1, R2](*)(P1, P2, P3)` |
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| 289 | class FunctionType final : public ParameterizedType { |
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| 290 | public: |
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[54e41b3] | 291 | std::vector<ptr<DeclWithType>> returns; |
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| 292 | std::vector<ptr<DeclWithType>> params; |
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[9e1d485] | 293 | |
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[87701b6] | 294 | /// Does the function accept a variable number of arguments following the arguments specified |
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[9e1d485] | 295 | /// in the parameters list. |
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| 296 | /// This could be because of |
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| 297 | /// - an ellipsis in a prototype declaration |
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| 298 | /// - an unprototyped declaration |
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| 299 | ArgumentFlag isVarArgs; |
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| 300 | |
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| 301 | FunctionType( ArgumentFlag va = FixedArgs, CV::Qualifiers q = {} ) |
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[54e41b3] | 302 | : ParameterizedType(q), returns(), params(), isVarArgs(va) {} |
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[9e1d485] | 303 | |
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| 304 | /// true if either the parameters or return values contain a tttype |
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| 305 | bool isTtype() const; |
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| 306 | /// true if function parameters are unconstrained by prototype |
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[54e41b3] | 307 | bool isUnprototyped() const { return isVarArgs && params.size() == 0; } |
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[9e1d485] | 308 | |
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[69bafd2] | 309 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 310 | private: |
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| 311 | FunctionType * clone() const override { return new FunctionType{ *this }; } |
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[f3cc5b6] | 312 | MUTATE_FRIEND |
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[9e1d485] | 313 | }; |
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| 314 | |
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| 315 | /// base class for types that refer to types declared elsewhere (aggregates and typedefs) |
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| 316 | class ReferenceToType : public ParameterizedType { |
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| 317 | public: |
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[54e41b3] | 318 | std::vector<ptr<Expr>> params; |
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[9e1d485] | 319 | std::string name; |
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| 320 | bool hoistType = false; |
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| 321 | |
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[87701b6] | 322 | ReferenceToType( const std::string& n, CV::Qualifiers q = {}, |
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[9e1d485] | 323 | std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 324 | : ParameterizedType(q, std::move(as)), params(), name(n) {} |
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[9e1d485] | 325 | |
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| 326 | /// Gets aggregate declaration this type refers to |
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| 327 | virtual const AggregateDecl * aggr() const = 0; |
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| 328 | /// Looks up member declarations with given name |
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| 329 | std::vector<readonly<Decl>> lookup( const std::string & name ) const; |
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| 330 | |
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| 331 | private: |
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| 332 | virtual ReferenceToType * clone() const override = 0; |
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[f3cc5b6] | 333 | MUTATE_FRIEND |
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[9e1d485] | 334 | }; |
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| 335 | |
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| 336 | /// instance of struct type |
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| 337 | class StructInstType final : public ReferenceToType { |
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| 338 | public: |
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| 339 | readonly<StructDecl> base; |
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| 340 | |
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[87701b6] | 341 | StructInstType( const std::string& n, CV::Qualifiers q = {}, |
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[9e1d485] | 342 | std::vector<ptr<Attribute>> && as = {} ) |
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| 343 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[87701b6] | 344 | StructInstType( const StructDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 345 | std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 346 | |
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[9e1d485] | 347 | bool isComplete() const override; |
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| 348 | |
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| 349 | const StructDecl * aggr() const override { return base; } |
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| 350 | |
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[69bafd2] | 351 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 352 | private: |
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| 353 | StructInstType * clone() const override { return new StructInstType{ *this }; } |
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[f3cc5b6] | 354 | MUTATE_FRIEND |
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[9e1d485] | 355 | }; |
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| 356 | |
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| 357 | /// instance of union type |
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| 358 | class UnionInstType final : public ReferenceToType { |
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| 359 | public: |
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| 360 | readonly<UnionDecl> base; |
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| 361 | |
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[87701b6] | 362 | UnionInstType( const std::string& n, CV::Qualifiers q = {}, |
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[9e1d485] | 363 | std::vector<ptr<Attribute>> && as = {} ) |
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| 364 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[87701b6] | 365 | UnionInstType( const UnionDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 366 | std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 367 | |
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[9e1d485] | 368 | bool isComplete() const override; |
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| 369 | |
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| 370 | const UnionDecl * aggr() const override { return base; } |
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| 371 | |
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[69bafd2] | 372 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 373 | private: |
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| 374 | UnionInstType * clone() const override { return new UnionInstType{ *this }; } |
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[f3cc5b6] | 375 | MUTATE_FRIEND |
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[9e1d485] | 376 | }; |
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| 377 | |
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| 378 | /// instance of enum type |
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| 379 | class EnumInstType final : public ReferenceToType { |
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| 380 | public: |
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| 381 | readonly<EnumDecl> base; |
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| 382 | |
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[87701b6] | 383 | EnumInstType( const std::string& n, CV::Qualifiers q = {}, |
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[9e1d485] | 384 | std::vector<ptr<Attribute>> && as = {} ) |
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| 385 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[87701b6] | 386 | EnumInstType( const EnumDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 387 | std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 388 | |
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[9e1d485] | 389 | bool isComplete() const override; |
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| 390 | |
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| 391 | const EnumDecl * aggr() const override { return base; } |
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| 392 | |
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[69bafd2] | 393 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 394 | private: |
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| 395 | EnumInstType * clone() const override { return new EnumInstType{ *this }; } |
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[f3cc5b6] | 396 | MUTATE_FRIEND |
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[9e1d485] | 397 | }; |
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| 398 | |
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| 399 | /// instance of trait type |
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| 400 | class TraitInstType final : public ReferenceToType { |
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| 401 | public: |
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| 402 | readonly<TraitDecl> base; |
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| 403 | |
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[87701b6] | 404 | TraitInstType( const std::string& n, CV::Qualifiers q = {}, |
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[9e1d485] | 405 | std::vector<ptr<Attribute>> && as = {} ) |
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| 406 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[87701b6] | 407 | TraitInstType( const TraitDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 408 | std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 409 | |
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[9e1d485] | 410 | // not meaningful for TraitInstType |
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| 411 | bool isComplete() const override { assert(false); } |
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| 412 | |
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| 413 | const TraitDecl * aggr() const override { return base; } |
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| 414 | |
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[69bafd2] | 415 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 416 | private: |
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| 417 | TraitInstType * clone() const override { return new TraitInstType{ *this }; } |
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[f3cc5b6] | 418 | MUTATE_FRIEND |
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[9e1d485] | 419 | }; |
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| 420 | |
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| 421 | /// instance of named type alias (typedef or variable) |
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| 422 | class TypeInstType final : public ReferenceToType { |
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| 423 | public: |
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| 424 | readonly<TypeDecl> base; |
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| 425 | TypeVar::Kind kind; |
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| 426 | |
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[87701b6] | 427 | TypeInstType( const std::string& n, const TypeDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 428 | std::vector<ptr<Attribute>> && as = {} ) |
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| 429 | : ReferenceToType( n, q, std::move(as) ), base( b ), kind( b->kind ) {} |
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[87701b6] | 430 | TypeInstType( const std::string& n, TypeVar::Kind k, CV::Qualifiers q = {}, |
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[9e1d485] | 431 | std::vector<ptr<Attribute>> && as = {} ) |
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| 432 | : ReferenceToType( n, q, std::move(as) ), base(), kind( k ) {} |
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| 433 | |
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| 434 | /// sets `base`, updating `kind` correctly |
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| 435 | void set_base( const TypeDecl * ); |
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| 436 | |
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| 437 | bool isComplete() const override; |
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| 438 | |
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| 439 | // not meaningful for TypeInstType |
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| 440 | const AggregateDecl * aggr() const override { assert(false); } |
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| 441 | |
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[69bafd2] | 442 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 443 | private: |
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| 444 | TypeInstType * clone() const override { return new TypeInstType{ *this }; } |
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[f3cc5b6] | 445 | MUTATE_FRIEND |
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[9e1d485] | 446 | }; |
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| 447 | |
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| 448 | /// tuple type e.g. `[int, char]` |
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| 449 | class TupleType final : public Type { |
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| 450 | public: |
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| 451 | std::vector<ptr<Type>> types; |
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| 452 | std::vector<ptr<Decl>> members; |
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| 453 | |
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| 454 | TupleType( std::vector<ptr<Type>> && ts, CV::Qualifiers q = {} ); |
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| 455 | |
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| 456 | // collection simulation |
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| 457 | using iterator = std::vector<ptr<Type>>::const_iterator; |
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| 458 | iterator begin() const { return types.begin(); } |
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| 459 | iterator end() const { return types.end(); } |
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[87701b6] | 460 | |
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[9e1d485] | 461 | unsigned size() const override { return types.size(); } |
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| 462 | |
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[d76c588] | 463 | const Type * getComponent( unsigned i ) const override { |
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[87701b6] | 464 | assertf( i < size(), "TupleType::getComponent: index %d must be less than size %d", |
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[9e1d485] | 465 | i, size() ); |
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| 466 | return *(begin()+i); |
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| 467 | } |
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| 468 | |
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[69bafd2] | 469 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 470 | private: |
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| 471 | TupleType * clone() const override { return new TupleType{ *this }; } |
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[f3cc5b6] | 472 | MUTATE_FRIEND |
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[9e1d485] | 473 | }; |
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| 474 | |
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| 475 | /// Type of unresolved `typeof()` expression |
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| 476 | class TypeofType : public Type { |
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| 477 | public: |
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| 478 | ptr<Expr> expr; |
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| 479 | enum Kind { Typeof, Basetypeof } kind; |
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| 480 | |
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[87701b6] | 481 | TypeofType( const Expr * e, Kind k = Typeof, CV::Qualifiers q = {} ) |
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[9e1d485] | 482 | : Type(q), expr(e), kind(k) {} |
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| 483 | |
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[69bafd2] | 484 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 485 | private: |
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| 486 | TypeofType * clone() const override { return new TypeofType{ *this }; } |
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[f3cc5b6] | 487 | MUTATE_FRIEND |
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[9e1d485] | 488 | }; |
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| 489 | |
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| 490 | /// GCC built-in varargs type |
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| 491 | class VarArgsType final : public Type { |
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| 492 | public: |
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| 493 | VarArgsType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 494 | |
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[69bafd2] | 495 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 496 | private: |
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| 497 | VarArgsType * clone() const override { return new VarArgsType{ *this }; } |
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[f3cc5b6] | 498 | MUTATE_FRIEND |
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[9e1d485] | 499 | }; |
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| 500 | |
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| 501 | /// Type of zero constant `0` |
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| 502 | class ZeroType final : public Type { |
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| 503 | public: |
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| 504 | ZeroType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 505 | |
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[69bafd2] | 506 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 507 | private: |
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[f3cc5b6] | 508 | ZeroType * clone() const override { return new ZeroType{ *this }; } |
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| 509 | MUTATE_FRIEND |
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[9e1d485] | 510 | }; |
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| 511 | |
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| 512 | /// Type of one constant `1` |
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| 513 | class OneType final : public Type { |
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| 514 | public: |
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| 515 | OneType( CV::Qualifiers q = {} ) : Type( q ) {} |
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| 516 | |
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[69bafd2] | 517 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 518 | private: |
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| 519 | OneType * clone() const override { return new OneType{ *this }; } |
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[f3cc5b6] | 520 | MUTATE_FRIEND |
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[9e1d485] | 521 | }; |
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| 522 | |
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| 523 | /// Parent type for scope-qualified types at global scope |
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| 524 | class GlobalScopeType final : public Type { |
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| 525 | public: |
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[746ae82] | 526 | GlobalScopeType() : Type() {} |
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[9e1d485] | 527 | |
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[69bafd2] | 528 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 529 | private: |
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| 530 | GlobalScopeType * clone() const override { return new GlobalScopeType{ *this }; } |
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[f3cc5b6] | 531 | MUTATE_FRIEND |
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[9e1d485] | 532 | }; |
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[e0115286] | 533 | |
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[2bb4a01] | 534 | } |
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| 535 | |
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[f3cc5b6] | 536 | #undef MUTATE_FRIEND |
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| 537 | |
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[2bb4a01] | 538 | // Local Variables: // |
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| 539 | // tab-width: 4 // |
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| 540 | // mode: c++ // |
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| 541 | // compile-command: "make install" // |
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| 542 | // End: // |
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