source: src/GenPoly/ScrubTyVars.h @ 08fc48f

aaron-thesisarm-ehcleanup-dtorsdeferred_resndemanglerjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerresolv-newwith_gc
Last change on this file since 08fc48f was 08fc48f, checked in by Thierry Delisle <tdelisle@…>, 4 years ago

Big header cleaning pass - commit 1

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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// ScrubTyVars.h --
8//
9// Author           : Richard C. Bilson
10// Created On       : Mon May 18 07:44:20 2015
11// Last Modified By : Peter A. Buhr
12// Last Modified On : Sat Jul 22 09:21:47 2017
13// Update Count     : 2
14//
15
16#pragma once
17
18#include <assert.h>           // for assert
19
20#include "GenPoly.h"          // for TyVarMap, isPolyType, isDynType
21#include "SynTree/Mutator.h"  // for Mutator
22#include "SynTree/Type.h"     // for Type (ptr only), PointerType (ptr only)
23
24class AlignofExpr;
25class Expression;
26class SizeofExpr;
27
28namespace GenPoly {
29        class ScrubTyVars : public Mutator {
30                /// Whether to scrub all type variables from the provided map, dynamic type variables from the provided map, or all type variables
31                enum ScrubMode { FromMap, DynamicFromMap, All };
32
33                ScrubTyVars() : tyVars(nullptr), mode( All ) {}
34
35                ScrubTyVars( const TyVarMap &tyVars, ScrubMode mode = FromMap ): tyVars( &tyVars ), mode( mode ) {}
36
37        public:
38                /// For all polymorphic types with type variables in `tyVars`, replaces generic types, dtypes, and ftypes with the appropriate void type,
39                /// and sizeof/alignof expressions with the proper variable
40                template< typename SynTreeClass >
41                static SynTreeClass *scrub( SynTreeClass *target, const TyVarMap &tyVars );
42
43                /// For all dynamic-layout types with type variables in `tyVars`, replaces generic types, dtypes, and ftypes with the appropriate void type,
44                /// and sizeof/alignof expressions with the proper variable
45                template< typename SynTreeClass >
46                static SynTreeClass *scrubDynamic( SynTreeClass *target, const TyVarMap &tyVars );
47
48                /// For all polymorphic types, replaces generic types, dtypes, and ftypes with the appropriate void type,
49                /// and sizeof/alignof expressions with the proper variable
50                template< typename SynTreeClass >
51                static SynTreeClass *scrubAll( SynTreeClass *target );
52
53                virtual Type* mutate( TypeInstType *typeInst );
54                virtual Type* mutate( StructInstType *structInst );
55                virtual Type* mutate( UnionInstType *unionInst );
56                virtual Expression* mutate( SizeofExpr *szeof );
57                virtual Expression* mutate( AlignofExpr *algnof );
58                virtual Type* mutate( PointerType *pointer );
59
60          private:
61                /// Returns the type if it should be scrubbed, NULL otherwise.
62                Type* shouldScrub( Type *ty ) {
63                        switch ( mode ) {
64                        case FromMap: return isPolyType( ty, *tyVars );
65                        case DynamicFromMap: return isDynType( ty, *tyVars );
66                        case All: return isPolyType( ty );
67                        }
68                        assert(false); return nullptr; // unreachable
69                        // return dynamicOnly ? isDynType( ty, tyVars ) : isPolyType( ty, tyVars );
70                }
71               
72                /// Mutates (possibly generic) aggregate types appropriately
73                Type* mutateAggregateType( Type *ty );
74               
75                const TyVarMap *tyVars;  ///< Type variables to scrub
76                ScrubMode mode;          ///< which type variables to scrub? [FromMap]
77        };
78
79        template< typename SynTreeClass >
80        SynTreeClass * ScrubTyVars::scrub( SynTreeClass *target, const TyVarMap &tyVars ) {
81                ScrubTyVars scrubber( tyVars );
82                return static_cast< SynTreeClass * >( target->acceptMutator( scrubber ) );
83        }
84
85        template< typename SynTreeClass >
86        SynTreeClass * ScrubTyVars::scrubDynamic( SynTreeClass *target, const TyVarMap &tyVars ) {
87                ScrubTyVars scrubber( tyVars, ScrubTyVars::DynamicFromMap );
88                return static_cast< SynTreeClass * >( target->acceptMutator( scrubber ) );
89        }
90
91        template< typename SynTreeClass >
92        SynTreeClass * ScrubTyVars::scrubAll( SynTreeClass *target ) {
93                ScrubTyVars scrubber;
94                return static_cast< SynTreeClass * >( target->acceptMutator( scrubber ) );
95        }
96
97} // namespace GenPoly
98
99// Local Variables: //
100// tab-width: 4 //
101// mode: c++ //
102// compile-command: "make install" //
103// End: //
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