[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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[923d25a] | 11 | // Last Modified By : Andrew Beach |
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| 12 | // Last Modified On : Thu Jul 23 14:15:00 2020 |
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| 13 | // Update Count : 6 |
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[2bb4a01] | 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 "Visitor.hpp" |
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[2bb4a01] | 29 | |
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[f3cc5b6] | 30 | // Must be included in *all* AST classes; should be #undef'd at the end of the file |
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[99da267] | 31 | #define MUTATE_FRIEND \ |
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| 32 | template<typename node_t> friend node_t * mutate(const node_t * node); \ |
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| 33 | template<typename node_t> friend node_t * shallowCopy(const node_t * node); |
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[f3cc5b6] | 34 | |
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[2bb4a01] | 35 | namespace ast { |
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| 36 | |
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[e0e9a0b] | 37 | template< typename T > class Pass; |
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[f53acdf8] | 38 | |
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| 39 | struct ForallSubstitutor; |
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[e0e9a0b] | 40 | |
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[2bb4a01] | 41 | class Type : public Node { |
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[9e1d485] | 42 | public: |
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[54e41b3] | 43 | CV::Qualifiers qualifiers; |
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[c829320] | 44 | std::vector<ptr<Attribute>> attributes; |
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[87701b6] | 45 | |
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[1ae47de] | 46 | Type( CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 47 | : qualifiers(q), attributes(std::move(as)) {} |
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[54e41b3] | 48 | |
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| 49 | bool is_const() const { return qualifiers.is_const; } |
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| 50 | bool is_volatile() const { return qualifiers.is_volatile; } |
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| 51 | bool is_restrict() const { return qualifiers.is_restrict; } |
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| 52 | bool is_mutex() const { return qualifiers.is_mutex; } |
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| 53 | bool is_atomic() const { return qualifiers.is_atomic; } |
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| 54 | |
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[76ed81f] | 55 | Type * set_const( bool v ) { qualifiers.is_const = v; return this; } |
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[dafe9e1] | 56 | Type * set_volatile( bool v ) { qualifiers.is_volatile = v; return this; } |
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[76ed81f] | 57 | Type * set_restrict( bool v ) { qualifiers.is_restrict = v; return this; } |
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| 58 | Type * set_mutex( bool v ) { qualifiers.is_mutex = v; return this; } |
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| 59 | Type * set_atomic( bool v ) { qualifiers.is_atomic = v; return this; } |
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[9e1d485] | 60 | |
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| 61 | /// How many elemental types are represented by this type |
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| 62 | virtual unsigned size() const { return 1; } |
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| 63 | /// Is this a void type? |
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| 64 | virtual bool isVoid() const { return size() == 0; } |
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| 65 | /// Get the i'th component of this type |
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[d76c588] | 66 | virtual const Type * getComponent( unsigned i ) const; |
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[9e1d485] | 67 | |
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| 68 | /// type without outer pointers and arrays |
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[d76c588] | 69 | const Type * stripDeclarator() const; |
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[9e1d485] | 70 | /// type without outer references |
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[d76c588] | 71 | const Type * stripReferences() const; |
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[9e1d485] | 72 | /// number of reference occuring consecutively on the outermost layer of this type |
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| 73 | /// (i.e. do not count references nested within other types) |
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| 74 | virtual unsigned referenceDepth() const { return 0; } |
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| 75 | /// true iff type is complete type (i.e. compiler knows the size, alignment, and layout) |
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| 76 | virtual bool isComplete() const { return true; } |
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| 77 | |
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[69bafd2] | 78 | virtual const Type * accept( Visitor & v ) const override = 0; |
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[9e1d485] | 79 | private: |
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| 80 | virtual Type * clone() const override = 0; |
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[f3cc5b6] | 81 | MUTATE_FRIEND |
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[9e1d485] | 82 | }; |
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| 83 | |
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[ee574a2] | 84 | /// Clear/reset the qualifiers on this type, cloning only if necessary |
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[d76c588] | 85 | template< enum Node::ref_type ref_t > |
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[ee574a2] | 86 | void reset_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q = {} ) { |
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| 87 | if ( p->qualifiers.val != q.val ) p.get_and_mutate()->qualifiers = q; |
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[d76c588] | 88 | } |
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| 89 | |
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[ee574a2] | 90 | /// Add the specified qualifiers to this type, cloning only if necessary |
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[d76c588] | 91 | template< enum Node::ref_type ref_t > |
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[ee574a2] | 92 | void add_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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| 93 | if ( ( p->qualifiers.val & q.val ) != q.val ) p.get_and_mutate()->qualifiers |= q; |
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| 94 | } |
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| 95 | |
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| 96 | /// Remove the specified qualifiers from this type, cloning only if necessary |
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| 97 | template< enum Node::ref_type ref_t > |
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| 98 | void remove_qualifiers( ptr_base< Type, ref_t > & p, CV::Qualifiers q ) { |
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| 99 | if ( ( p->qualifiers.val & q.val ) != 0 ) p.get_and_mutate()->qualifiers -= q; |
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[d76c588] | 100 | } |
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| 101 | |
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[9e1d485] | 102 | /// `void` |
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| 103 | class VoidType final : public Type { |
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| 104 | public: |
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| 105 | VoidType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 106 | |
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[9e1d485] | 107 | unsigned size() const override { return 0; } |
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| 108 | bool isVoid() const override { return true; } |
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| 109 | bool isComplete() const override { return false; } |
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| 110 | |
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[69bafd2] | 111 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 112 | private: |
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| 113 | VoidType * clone() const override { return new VoidType{ *this }; } |
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[f3cc5b6] | 114 | MUTATE_FRIEND |
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[9e1d485] | 115 | }; |
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| 116 | |
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| 117 | /// Built-in arithmetic type |
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| 118 | class BasicType final : public Type { |
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| 119 | public: |
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| 120 | // GENERATED START, DO NOT EDIT |
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| 121 | // GENERATED BY BasicTypes-gen.cc |
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| 122 | enum Kind { |
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| 123 | Bool, |
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| 124 | Char, |
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| 125 | SignedChar, |
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| 126 | UnsignedChar, |
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| 127 | ShortSignedInt, |
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| 128 | ShortUnsignedInt, |
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| 129 | SignedInt, |
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| 130 | UnsignedInt, |
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| 131 | LongSignedInt, |
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| 132 | LongUnsignedInt, |
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| 133 | LongLongSignedInt, |
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| 134 | LongLongUnsignedInt, |
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| 135 | SignedInt128, |
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| 136 | UnsignedInt128, |
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| 137 | uFloat16, |
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| 138 | uFloat16Complex, |
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| 139 | uFloat32, |
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| 140 | uFloat32Complex, |
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| 141 | Float, |
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| 142 | FloatComplex, |
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| 143 | uFloat32x, |
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| 144 | uFloat32xComplex, |
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| 145 | uFloat64, |
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| 146 | uFloat64Complex, |
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| 147 | Double, |
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| 148 | DoubleComplex, |
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| 149 | uFloat64x, |
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| 150 | uFloat64xComplex, |
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| 151 | uuFloat80, |
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| 152 | uFloat128, |
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| 153 | uFloat128Complex, |
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| 154 | uuFloat128, |
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| 155 | LongDouble, |
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| 156 | LongDoubleComplex, |
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| 157 | uFloat128x, |
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| 158 | uFloat128xComplex, |
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| 159 | NUMBER_OF_BASIC_TYPES |
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| 160 | } kind; |
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| 161 | // GENERATED END |
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| 162 | |
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| 163 | /// xxx -- MAX_INTEGER_TYPE should probably be in BasicTypes-gen.cc, rather than hardcoded here |
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| 164 | enum { MAX_INTEGER_TYPE = UnsignedInt128 }; |
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| 165 | |
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| 166 | /// string names of basic types; generated to match with Kind |
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| 167 | static const char *typeNames[]; |
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| 168 | |
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[f53acdf8] | 169 | BasicType( Kind k, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[0f6a7752] | 170 | : Type(q, std::move(as)), kind(k) {} |
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[9e1d485] | 171 | |
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| 172 | /// Check if this type represents an integer type |
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[3648d98] | 173 | bool isInteger() const { return (unsigned)kind <= (unsigned)MAX_INTEGER_TYPE; } |
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[9e1d485] | 174 | |
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[69bafd2] | 175 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 176 | private: |
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| 177 | BasicType * clone() const override { return new BasicType{ *this }; } |
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[f3cc5b6] | 178 | MUTATE_FRIEND |
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[9e1d485] | 179 | }; |
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| 180 | |
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| 181 | /// Pointer/array variable length? |
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| 182 | enum LengthFlag { FixedLen, VariableLen }; |
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| 183 | |
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| 184 | /// Pointer/array static dimension? |
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| 185 | enum DimensionFlag { DynamicDim, StaticDim }; |
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| 186 | |
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| 187 | /// Pointer type `T*` |
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| 188 | class PointerType final : public Type { |
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| 189 | public: |
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| 190 | ptr<Type> base; |
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| 191 | |
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| 192 | // In C99, pointer types can be qualified in many ways, e.g. `int a[ static 3 ]` |
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| 193 | ptr<Expr> dimension; |
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| 194 | LengthFlag isVarLen = FixedLen; |
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| 195 | DimensionFlag isStatic = DynamicDim; |
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| 196 | |
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| 197 | PointerType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b), dimension() {} |
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[87701b6] | 198 | PointerType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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[9e1d485] | 199 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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| 200 | |
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| 201 | // true if this pointer is actually an array |
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| 202 | bool isArray() const { return isVarLen || isStatic || dimension; } |
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| 203 | |
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| 204 | bool isComplete() const override { return ! isVarLen; } |
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| 205 | |
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[69bafd2] | 206 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 207 | private: |
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| 208 | PointerType * clone() const override { return new PointerType{ *this }; } |
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[f3cc5b6] | 209 | MUTATE_FRIEND |
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[9e1d485] | 210 | }; |
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| 211 | |
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| 212 | /// Array type `T[]` |
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| 213 | class ArrayType final : public Type { |
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| 214 | public: |
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| 215 | ptr<Type> base; |
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| 216 | ptr<Expr> dimension; |
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| 217 | LengthFlag isVarLen; |
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| 218 | DimensionFlag isStatic; |
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[2bb4a01] | 219 | |
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[87701b6] | 220 | ArrayType( const Type * b, const Expr * d, LengthFlag vl, DimensionFlag s, |
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[9e1d485] | 221 | CV::Qualifiers q = {} ) : Type(q), base(b), dimension(d), isVarLen(vl), isStatic(s) {} |
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| 222 | |
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| 223 | // array types are complete if they have a dimension expression or are |
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| 224 | // VLAs ('*' in parameter declaration), and incomplete otherwise. |
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| 225 | // See 6.7.6.2 |
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| 226 | bool isComplete() const override { return dimension || isVarLen; } |
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| 227 | |
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[69bafd2] | 228 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 229 | private: |
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| 230 | ArrayType * clone() const override { return new ArrayType{ *this }; } |
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[f3cc5b6] | 231 | MUTATE_FRIEND |
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[9e1d485] | 232 | }; |
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| 233 | |
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| 234 | /// Reference type `T&` |
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| 235 | class ReferenceType final : public Type { |
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| 236 | public: |
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| 237 | ptr<Type> base; |
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| 238 | |
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| 239 | ReferenceType( const Type * b, CV::Qualifiers q = {} ) : Type(q), base(b) {} |
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| 240 | |
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| 241 | unsigned referenceDepth() const override { return base->referenceDepth() + 1; } |
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| 242 | |
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| 243 | // Since reference types act like value types, their size is the size of the base. |
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| 244 | // This makes it simple to cast the empty tuple to a reference type, since casts that increase |
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| 245 | // the number of values are disallowed. |
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| 246 | unsigned size() const override { return base->size(); } |
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| 247 | |
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[69bafd2] | 248 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 249 | private: |
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| 250 | ReferenceType * clone() const override { return new ReferenceType{ *this }; } |
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[f3cc5b6] | 251 | MUTATE_FRIEND |
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[2bb4a01] | 252 | }; |
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| 253 | |
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[9e1d485] | 254 | /// Qualified type `P.C` |
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| 255 | class QualifiedType final : public Type { |
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| 256 | public: |
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| 257 | ptr<Type> parent; |
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| 258 | ptr<Type> child; |
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| 259 | |
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[87701b6] | 260 | QualifiedType( const Type * p, const Type * c, CV::Qualifiers q = {} ) |
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[9e1d485] | 261 | : Type(q), parent(p), child(c) {} |
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| 262 | |
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[69bafd2] | 263 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 264 | private: |
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| 265 | QualifiedType * clone() const override { return new QualifiedType{ *this }; } |
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[f3cc5b6] | 266 | MUTATE_FRIEND |
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[9e1d485] | 267 | }; |
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| 268 | |
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| 269 | /// Base type for potentially forall-qualified types |
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| 270 | class ParameterizedType : public Type { |
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[e0e9a0b] | 271 | protected: |
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| 272 | /// initializes forall with substitutor |
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| 273 | void initWithSub( const ParameterizedType & o, Pass< ForallSubstitutor > & sub ); |
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[9e1d485] | 274 | public: |
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| 275 | using ForallList = std::vector<ptr<TypeDecl>>; |
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| 276 | |
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| 277 | ForallList forall; |
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| 278 | |
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[1ae47de] | 279 | ParameterizedType( ForallList&& fs = {}, CV::Qualifiers q = {}, |
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[c829320] | 280 | std::vector<ptr<Attribute>> && as = {} ) |
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| 281 | : Type(q, std::move(as)), forall(std::move(fs)) {} |
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[1ae47de] | 282 | |
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| 283 | ParameterizedType( CV::Qualifiers q, std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 284 | : Type(q, std::move(as)), forall() {} |
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[9e1d485] | 285 | |
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[e0e9a0b] | 286 | // enforce use of ForallSubstitutor to copy parameterized type |
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| 287 | ParameterizedType( const ParameterizedType & ) = delete; |
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[92f5279] | 288 | |
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| 289 | ParameterizedType( ParameterizedType && ) = default; |
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| 290 | |
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| 291 | // no need to change destructor, and operator= deleted in Node |
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| 292 | |
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[9e1d485] | 293 | private: |
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| 294 | virtual ParameterizedType * clone() const override = 0; |
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[f3cc5b6] | 295 | MUTATE_FRIEND |
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[9e1d485] | 296 | }; |
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| 297 | |
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| 298 | /// Function variable arguments flag |
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| 299 | enum ArgumentFlag { FixedArgs, VariableArgs }; |
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| 300 | |
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| 301 | /// Type of a function `[R1, R2](*)(P1, P2, P3)` |
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| 302 | class FunctionType final : public ParameterizedType { |
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| 303 | public: |
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[54e41b3] | 304 | std::vector<ptr<DeclWithType>> returns; |
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| 305 | std::vector<ptr<DeclWithType>> params; |
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[9e1d485] | 306 | |
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[87701b6] | 307 | /// Does the function accept a variable number of arguments following the arguments specified |
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[9e1d485] | 308 | /// in the parameters list. |
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| 309 | /// This could be because of |
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| 310 | /// - an ellipsis in a prototype declaration |
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| 311 | /// - an unprototyped declaration |
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| 312 | ArgumentFlag isVarArgs; |
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| 313 | |
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| 314 | FunctionType( ArgumentFlag va = FixedArgs, CV::Qualifiers q = {} ) |
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[54e41b3] | 315 | : ParameterizedType(q), returns(), params(), isVarArgs(va) {} |
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[9e1d485] | 316 | |
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[e0e9a0b] | 317 | FunctionType( const FunctionType & o ); |
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| 318 | |
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[9e1d485] | 319 | /// true if either the parameters or return values contain a tttype |
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| 320 | bool isTtype() const; |
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| 321 | /// true if function parameters are unconstrained by prototype |
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[54e41b3] | 322 | bool isUnprototyped() const { return isVarArgs && params.size() == 0; } |
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[9e1d485] | 323 | |
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[69bafd2] | 324 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 325 | private: |
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| 326 | FunctionType * clone() const override { return new FunctionType{ *this }; } |
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[f3cc5b6] | 327 | MUTATE_FRIEND |
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[9e1d485] | 328 | }; |
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| 329 | |
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| 330 | /// base class for types that refer to types declared elsewhere (aggregates and typedefs) |
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| 331 | class ReferenceToType : public ParameterizedType { |
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[e0e9a0b] | 332 | protected: |
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| 333 | /// Initializes forall and parameters based on substitutor |
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| 334 | void initWithSub( const ReferenceToType & o, Pass< ForallSubstitutor > & sub ); |
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[9e1d485] | 335 | public: |
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[54e41b3] | 336 | std::vector<ptr<Expr>> params; |
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[9e1d485] | 337 | std::string name; |
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| 338 | bool hoistType = false; |
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| 339 | |
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[f53acdf8] | 340 | ReferenceToType( |
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[e0e9a0b] | 341 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[c829320] | 342 | : ParameterizedType(q, std::move(as)), params(), name(n) {} |
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[9e1d485] | 343 | |
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[e0e9a0b] | 344 | ReferenceToType( const ReferenceToType & o ); |
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| 345 | |
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[9e1d485] | 346 | /// Gets aggregate declaration this type refers to |
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| 347 | virtual const AggregateDecl * aggr() const = 0; |
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| 348 | /// Looks up member declarations with given name |
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| 349 | std::vector<readonly<Decl>> lookup( const std::string & name ) const; |
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| 350 | |
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| 351 | private: |
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| 352 | virtual ReferenceToType * clone() const override = 0; |
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[f3cc5b6] | 353 | MUTATE_FRIEND |
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[9e1d485] | 354 | }; |
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| 355 | |
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[923d25a] | 356 | // Common implementation for the SUE instance types. Not to be used directly. |
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| 357 | template<typename decl_t> |
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| 358 | class SueInstType final : public ReferenceToType { |
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[9e1d485] | 359 | public: |
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[923d25a] | 360 | using base_type = decl_t; |
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| 361 | readonly<decl_t> base; |
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[9e1d485] | 362 | |
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[923d25a] | 363 | SueInstType( |
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[e0e9a0b] | 364 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[9e1d485] | 365 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[e0e9a0b] | 366 | |
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[923d25a] | 367 | SueInstType( |
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| 368 | const decl_t * b, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 369 | |
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[9e1d485] | 370 | bool isComplete() const override; |
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| 371 | |
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[923d25a] | 372 | const decl_t * aggr() const override { return base; } |
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[9e1d485] | 373 | |
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[69bafd2] | 374 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 375 | private: |
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[923d25a] | 376 | SueInstType<decl_t> * clone() const override { return new SueInstType<decl_t>{ *this }; } |
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[f3cc5b6] | 377 | MUTATE_FRIEND |
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[9e1d485] | 378 | }; |
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| 379 | |
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[923d25a] | 380 | /// An instance of a struct type. |
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| 381 | using StructInstType = SueInstType<StructDecl>; |
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[9e1d485] | 382 | |
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[923d25a] | 383 | /// An instance of a union type. |
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| 384 | using UnionInstType = SueInstType<UnionDecl>; |
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[9e1d485] | 385 | |
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[923d25a] | 386 | /// An instance of an enum type. |
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| 387 | using EnumInstType = SueInstType<EnumDecl>; |
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[9e1d485] | 388 | |
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[923d25a] | 389 | /// An instance of a trait type. |
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[9e1d485] | 390 | class TraitInstType final : public ReferenceToType { |
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| 391 | public: |
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| 392 | readonly<TraitDecl> base; |
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| 393 | |
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[f53acdf8] | 394 | TraitInstType( |
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[e0e9a0b] | 395 | const std::string& n, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ) |
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[9e1d485] | 396 | : ReferenceToType( n, q, std::move(as) ), base() {} |
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[f53acdf8] | 397 | |
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| 398 | TraitInstType( |
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[e0e9a0b] | 399 | const TraitDecl * b, CV::Qualifiers q = {}, std::vector<ptr<Attribute>> && as = {} ); |
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[87701b6] | 400 | |
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[9e1d485] | 401 | // not meaningful for TraitInstType |
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| 402 | bool isComplete() const override { assert(false); } |
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| 403 | |
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| 404 | const TraitDecl * aggr() const override { return base; } |
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| 405 | |
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[69bafd2] | 406 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 407 | private: |
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| 408 | TraitInstType * clone() const override { return new TraitInstType{ *this }; } |
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[f3cc5b6] | 409 | MUTATE_FRIEND |
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[9e1d485] | 410 | }; |
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| 411 | |
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| 412 | /// instance of named type alias (typedef or variable) |
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| 413 | class TypeInstType final : public ReferenceToType { |
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| 414 | public: |
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| 415 | readonly<TypeDecl> base; |
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[07de76b] | 416 | TypeDecl::Kind kind; |
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[9e1d485] | 417 | |
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[f53acdf8] | 418 | TypeInstType( |
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[e0e9a0b] | 419 | const std::string& n, const TypeDecl * b, CV::Qualifiers q = {}, |
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[9e1d485] | 420 | std::vector<ptr<Attribute>> && as = {} ) |
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| 421 | : ReferenceToType( n, q, std::move(as) ), base( b ), kind( b->kind ) {} |
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[07de76b] | 422 | TypeInstType( const std::string& n, TypeDecl::Kind k, CV::Qualifiers q = {}, |
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[9e1d485] | 423 | std::vector<ptr<Attribute>> && as = {} ) |
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| 424 | : ReferenceToType( n, q, std::move(as) ), base(), kind( k ) {} |
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| 425 | |
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[e0e9a0b] | 426 | TypeInstType( const TypeInstType & o ); |
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| 427 | |
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[9e1d485] | 428 | /// sets `base`, updating `kind` correctly |
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| 429 | void set_base( const TypeDecl * ); |
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| 430 | |
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| 431 | bool isComplete() const override; |
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| 432 | |
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| 433 | // not meaningful for TypeInstType |
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| 434 | const AggregateDecl * aggr() const override { assert(false); } |
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| 435 | |
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[69bafd2] | 436 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 437 | private: |
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| 438 | TypeInstType * clone() const override { return new TypeInstType{ *this }; } |
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[f3cc5b6] | 439 | MUTATE_FRIEND |
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[9e1d485] | 440 | }; |
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| 441 | |
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| 442 | /// tuple type e.g. `[int, char]` |
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| 443 | class TupleType final : public Type { |
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| 444 | public: |
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| 445 | std::vector<ptr<Type>> types; |
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| 446 | std::vector<ptr<Decl>> members; |
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| 447 | |
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| 448 | TupleType( std::vector<ptr<Type>> && ts, CV::Qualifiers q = {} ); |
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| 449 | |
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| 450 | // collection simulation |
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| 451 | using iterator = std::vector<ptr<Type>>::const_iterator; |
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| 452 | iterator begin() const { return types.begin(); } |
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| 453 | iterator end() const { return types.end(); } |
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[87701b6] | 454 | |
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[9e1d485] | 455 | unsigned size() const override { return types.size(); } |
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| 456 | |
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[d76c588] | 457 | const Type * getComponent( unsigned i ) const override { |
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[87701b6] | 458 | assertf( i < size(), "TupleType::getComponent: index %d must be less than size %d", |
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[9e1d485] | 459 | i, size() ); |
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| 460 | return *(begin()+i); |
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| 461 | } |
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| 462 | |
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[69bafd2] | 463 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 464 | private: |
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| 465 | TupleType * clone() const override { return new TupleType{ *this }; } |
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[f3cc5b6] | 466 | MUTATE_FRIEND |
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[9e1d485] | 467 | }; |
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| 468 | |
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| 469 | /// Type of unresolved `typeof()` expression |
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| 470 | class TypeofType : public Type { |
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| 471 | public: |
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| 472 | ptr<Expr> expr; |
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| 473 | enum Kind { Typeof, Basetypeof } kind; |
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| 474 | |
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[87701b6] | 475 | TypeofType( const Expr * e, Kind k = Typeof, CV::Qualifiers q = {} ) |
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[9e1d485] | 476 | : Type(q), expr(e), kind(k) {} |
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| 477 | |
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[69bafd2] | 478 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 479 | private: |
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| 480 | TypeofType * clone() const override { return new TypeofType{ *this }; } |
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[f3cc5b6] | 481 | MUTATE_FRIEND |
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[9e1d485] | 482 | }; |
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| 483 | |
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| 484 | /// GCC built-in varargs type |
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| 485 | class VarArgsType final : public Type { |
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| 486 | public: |
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| 487 | VarArgsType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 488 | |
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[69bafd2] | 489 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 490 | private: |
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| 491 | VarArgsType * clone() const override { return new VarArgsType{ *this }; } |
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[f3cc5b6] | 492 | MUTATE_FRIEND |
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[9e1d485] | 493 | }; |
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| 494 | |
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| 495 | /// Type of zero constant `0` |
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| 496 | class ZeroType final : public Type { |
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| 497 | public: |
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| 498 | ZeroType( CV::Qualifiers q = {} ) : Type( q ) {} |
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[87701b6] | 499 | |
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[69bafd2] | 500 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 501 | private: |
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[f3cc5b6] | 502 | ZeroType * clone() const override { return new ZeroType{ *this }; } |
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| 503 | MUTATE_FRIEND |
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[9e1d485] | 504 | }; |
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| 505 | |
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| 506 | /// Type of one constant `1` |
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| 507 | class OneType final : public Type { |
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| 508 | public: |
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| 509 | OneType( CV::Qualifiers q = {} ) : Type( q ) {} |
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| 510 | |
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[69bafd2] | 511 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 512 | private: |
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| 513 | OneType * clone() const override { return new OneType{ *this }; } |
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[f3cc5b6] | 514 | MUTATE_FRIEND |
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[9e1d485] | 515 | }; |
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| 516 | |
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| 517 | /// Parent type for scope-qualified types at global scope |
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| 518 | class GlobalScopeType final : public Type { |
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| 519 | public: |
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[746ae82] | 520 | GlobalScopeType() : Type() {} |
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[9e1d485] | 521 | |
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[69bafd2] | 522 | const Type * accept( Visitor & v ) const override { return v.visit( this ); } |
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[9e1d485] | 523 | private: |
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| 524 | GlobalScopeType * clone() const override { return new GlobalScopeType{ *this }; } |
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[f3cc5b6] | 525 | MUTATE_FRIEND |
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[9e1d485] | 526 | }; |
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[e0115286] | 527 | |
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[2bb4a01] | 528 | } |
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| 529 | |
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[f3cc5b6] | 530 | #undef MUTATE_FRIEND |
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| 531 | |
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[2bb4a01] | 532 | // Local Variables: // |
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| 533 | // tab-width: 4 // |
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| 534 | // mode: c++ // |
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| 535 | // compile-command: "make install" // |
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| 536 | // End: // |
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