| 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 | // ScrubTyVars.h -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Mon May 18 07:44:20 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Tue May 19 07:48:14 2015 |
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| 13 | // Update Count : 1 |
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| 14 | // |
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| 15 | |
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| 16 | #ifndef _SCRUBTYVARS_H |
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| 17 | #define _SCRUBTYVARS_H |
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| 18 | |
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| 19 | #include <string> |
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| 20 | |
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| 21 | #include "GenPoly.h" |
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| 22 | |
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| 23 | #include "SynTree/SynTree.h" |
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| 24 | #include "SynTree/Mutator.h" |
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| 25 | |
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| 26 | namespace GenPoly { |
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| 27 | class ScrubTyVars : public Mutator { |
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| 28 | public: |
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| 29 | ScrubTyVars( const TyVarMap &tyVars, bool dynamicOnly = false ): tyVars( tyVars ), dynamicOnly( dynamicOnly ) {} |
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| 30 | |
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| 31 | /// For all polymorphic types with type variables in `tyVars`, replaces generic types, dtypes, and ftypes with the appropriate void type, |
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| 32 | /// and sizeof/alignof expressions with the proper variable |
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| 33 | template< typename SynTreeClass > |
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| 34 | static SynTreeClass *scrub( SynTreeClass *target, const TyVarMap &tyVars ); |
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| 35 | |
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| 36 | /// For all dynamic-layout types with type variables in `tyVars`, replaces generic types, dtypes, and ftypes with the appropriate void type, |
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| 37 | /// and sizeof/alignof expressions with the proper variable |
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| 38 | template< typename SynTreeClass > |
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| 39 | static SynTreeClass *scrubDynamic( SynTreeClass *target, const TyVarMap &tyVars ); |
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| 40 | |
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| 41 | virtual Type* mutate( TypeInstType *typeInst ); |
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| 42 | virtual Type* mutate( StructInstType *structInst ); |
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| 43 | virtual Type* mutate( UnionInstType *unionInst ); |
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| 44 | virtual Expression* mutate( SizeofExpr *szeof ); |
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| 45 | virtual Expression* mutate( AlignofExpr *algnof ); |
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| 46 | virtual Type* mutate( PointerType *pointer ); |
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| 47 | |
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| 48 | private: |
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| 49 | /// Returns the type if it should be scrubbed, NULL otherwise. |
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| 50 | Type* shouldScrub( Type *ty ) { |
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| 51 | return dynamicOnly ? isDynType( ty, tyVars ) : isPolyType( ty, tyVars ); |
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| 52 | // if ( ! dynamicOnly ) return isPolyType( ty, tyVars ); |
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| 53 | // |
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| 54 | // if ( TypeInstType *typeInst = dynamic_cast< TypeInstType* >( ty ) ) { |
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| 55 | // return tyVars.find( typeInst->get_name() ) != tyVars.end() ? ty : 0; |
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| 56 | // } |
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| 57 | // |
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| 58 | // return isDynType( ty, tyVars ); |
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| 59 | } |
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| 60 | |
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| 61 | /// Mutates (possibly generic) aggregate types appropriately |
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| 62 | Type* mutateAggregateType( Type *ty ); |
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| 63 | |
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| 64 | const TyVarMap &tyVars; ///< Type variables to scrub |
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| 65 | bool dynamicOnly; ///< only scrub the types with dynamic layout? [false] |
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| 66 | }; |
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| 67 | |
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| 68 | template< typename SynTreeClass > |
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| 69 | SynTreeClass * ScrubTyVars::scrub( SynTreeClass *target, const TyVarMap &tyVars ) { |
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| 70 | ScrubTyVars scrubber( tyVars ); |
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| 71 | return static_cast< SynTreeClass * >( target->acceptMutator( scrubber ) ); |
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| 72 | } |
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| 73 | |
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| 74 | template< typename SynTreeClass > |
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| 75 | SynTreeClass * ScrubTyVars::scrubDynamic( SynTreeClass *target, const TyVarMap &tyVars ) { |
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| 76 | ScrubTyVars scrubber( tyVars, true ); |
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| 77 | return static_cast< SynTreeClass * >( target->acceptMutator( scrubber ) ); |
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| 78 | } |
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| 79 | |
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| 80 | } // namespace GenPoly |
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| 81 | |
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| 82 | #endif // _SCRUBTYVARS_H |
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| 83 | |
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| 84 | // Local Variables: // |
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| 85 | // tab-width: 4 // |
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| 86 | // mode: c++ // |
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| 87 | // compile-command: "make install" // |
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| 88 | // End: // |
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