source: src/ResolvExpr/ConversionCost.h @ cf32116

arm-ehjacob/cs343-translationnew-astnew-ast-unique-expr
Last change on this file since cf32116 was cf32116, checked in by Andrew Beach <ajbeach@…>, 2 years ago

Implemented expression based lvalue resolution on new ast.

  • Property mode set to 100644
File size: 4.6 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// ConversionCost.h --
8//
9// Author           : Richard C. Bilson
10// Created On       : Sun May 17 09:37:28 2015
11// Last Modified By : Andrew Beach
12// Last Modified On : Tue Oct  4 14:59:00 2019
13// Update Count     : 7
14//
15
16#pragma once
17
18#include <functional>         // for function
19
20#include "Cost.h"             // for Cost
21
22#include "AST/Fwd.hpp"
23#include "AST/Pass.hpp"       // for WithShortCircuiting
24#include "Common/PassVisitor.h"
25#include "SynTree/Visitor.h"  // for Visitor
26#include "SynTree/SynTree.h"  // for Visitor Nodes
27
28namespace SymTab {
29        class Indexer;
30}  // namespace SymTab
31
32namespace ResolvExpr {
33        class TypeEnvironment;
34
35        typedef std::function<Cost(const Type *, const Type *, bool,
36                const SymTab::Indexer &, const TypeEnvironment &)> CostFunction;
37
38        struct ConversionCost : public WithShortCircuiting {
39          public:
40                ConversionCost( const Type * dest, bool srcIsLvalue,
41                        const SymTab::Indexer &indexer, const TypeEnvironment &env, CostFunction );
42
43                Cost get_cost() const { return cost; }
44
45                void previsit( const BaseSyntaxNode * ) { visit_children = false; }
46
47                void postvisit( const VoidType * voidType );
48                void postvisit( const BasicType * basicType );
49                void postvisit( const PointerType * pointerType );
50                void postvisit( const ArrayType * arrayType );
51                void postvisit( const ReferenceType * refType );
52                void postvisit( const FunctionType * functionType );
53                void postvisit( const StructInstType * aggregateUseType );
54                void postvisit( const UnionInstType * aggregateUseType );
55                void postvisit( const EnumInstType * aggregateUseType );
56                void postvisit( const TraitInstType * aggregateUseType );
57                void postvisit( const TypeInstType * aggregateUseType );
58                void postvisit( const TupleType * tupleType );
59                void postvisit( const VarArgsType * varArgsType );
60                void postvisit( const ZeroType * zeroType );
61                void postvisit( const OneType * oneType );
62          protected:
63                const Type * dest;
64                bool srcIsLvalue;
65                const SymTab::Indexer &indexer;
66                Cost cost;
67                const TypeEnvironment &env;
68                CostFunction costFunc;
69        };
70
71        typedef std::function<int(const Type *, const Type *, const SymTab::Indexer &, const TypeEnvironment &)> PtrsFunction;
72        Cost convertToReferenceCost( const Type * src, const ReferenceType * dest, bool srcIsLvalue,
73                const SymTab::Indexer & indexer, const TypeEnvironment & env, PtrsFunction func );
74
75// Some function pointer types, differ in return type.
76using CostCalculation = std::function<Cost(const ast::Type *, const ast::Type *, bool,
77        const ast::SymbolTable &, const ast::TypeEnvironment &)>;
78using PtrsCalculation = std::function<int(const ast::Type *, const ast::Type *,
79        const ast::SymbolTable &, const ast::TypeEnvironment &)>;
80
81#warning when the old ConversionCost is removed, get ride of the _new suffix.
82class ConversionCost_new : public ast::WithShortCircuiting {
83protected:
84        const ast::Type * dst;
85        bool srcIsLvalue;
86        const ast::SymbolTable & symtab;
87        const ast::TypeEnvironment & env;
88        CostCalculation costCalc;
89public:
90        Cost cost;
91
92        ConversionCost_new( const ast::Type * dst, bool srcIsLvalue, const ast::SymbolTable & symtab,
93                        const ast::TypeEnvironment & env, CostCalculation costCalc ) :
94                dst( dst ), srcIsLvalue( srcIsLvalue ), symtab( symtab ), env( env ),
95                costCalc( costCalc ), cost( Cost::infinity )
96        {}
97
98        void previsit( const ast::Node * ) { visit_children = false; }
99
100        void postvisit( const ast::VoidType * voidType );
101        void postvisit( const ast::BasicType * basicType );
102        void postvisit( const ast::PointerType * pointerType );
103        void postvisit( const ast::ArrayType * arrayType );
104        void postvisit( const ast::ReferenceType * refType );
105        void postvisit( const ast::FunctionType * functionType );
106        void postvisit( const ast::StructInstType * structInstType );
107        void postvisit( const ast::UnionInstType * unionInstType );
108        void postvisit( const ast::EnumInstType * enumInstType );
109        void postvisit( const ast::TraitInstType * traitInstType );
110        void postvisit( const ast::TypeInstType * typeInstType );
111        void postvisit( const ast::TupleType * tupleType );
112        void postvisit( const ast::VarArgsType * varArgsType );
113        void postvisit( const ast::ZeroType * zeroType );
114        void postvisit( const ast::OneType * oneType );
115};
116
117Cost convertToReferenceCost( const ast::Type * src, const ast::ReferenceType * dest,
118        bool srcIsLvalue, const ast::SymbolTable & indexer, const ast::TypeEnvironment & env,
119        PtrsCalculation func );
120
121} // namespace ResolvExpr
122
123// Local Variables: //
124// tab-width: 4 //
125// mode: c++ //
126// compile-command: "make install" //
127// End: //
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