[a32b204] | 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 | // TypeEnvironment.h -- |
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| 8 | // |
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| 9 | // Author : Richard C. Bilson |
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| 10 | // Created On : Sun May 17 12:24:58 2015 |
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| 11 | // Last Modified By : Peter A. Buhr |
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| 12 | // Last Modified On : Sun May 17 12:26:52 2015 |
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| 13 | // Update Count : 2 |
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| 14 | // |
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[51b7345] | 15 | |
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[a32b204] | 16 | #ifndef TYPEENVIRONMENT_H |
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| 17 | #define TYPEENVIRONMENT_H |
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[51b7345] | 18 | |
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| 19 | #include <string> |
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| 20 | #include <set> |
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| 21 | #include <list> |
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| 22 | #include <iostream> |
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| 23 | |
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| 24 | #include "SynTree/SynTree.h" |
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| 25 | #include "SynTree/Type.h" |
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| 26 | #include "SynTree/TypeSubstitution.h" |
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| 27 | #include "SynTree/Declaration.h" |
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| 28 | |
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| 29 | namespace ResolvExpr { |
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[a32b204] | 30 | typedef std::map< DeclarationWithType*, bool > AssertionSet; |
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| 31 | typedef std::map< std::string, TypeDecl::Kind > OpenVarSet; |
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[51b7345] | 32 | |
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[a32b204] | 33 | void printAssertionSet( const AssertionSet &, std::ostream &, int indent = 0 ); |
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| 34 | void printOpenVarSet( const OpenVarSet &, std::ostream &, int indent = 0 ); |
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[51b7345] | 35 | |
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[a32b204] | 36 | struct EqvClass { |
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| 37 | std::set< std::string > vars; |
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| 38 | Type *type; |
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| 39 | bool allowWidening; |
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| 40 | TypeDecl::Kind kind; |
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[51b7345] | 41 | |
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[a32b204] | 42 | void initialize( const EqvClass &src, EqvClass &dest ); |
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| 43 | EqvClass(); |
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| 44 | EqvClass( const EqvClass &other ); |
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| 45 | EqvClass &operator=( const EqvClass &other ); |
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| 46 | ~EqvClass(); |
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| 47 | void print( std::ostream &os, int indent = 0 ) const; |
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| 48 | }; |
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[51b7345] | 49 | |
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[a32b204] | 50 | class TypeEnvironment { |
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| 51 | public: |
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| 52 | bool lookup( const std::string &var, EqvClass &eqvClass ) const; |
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| 53 | void add( const EqvClass &eqvClass ); |
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| 54 | void add( const std::list< TypeDecl* > &tyDecls ); |
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| 55 | template< typename SynTreeClass > int apply( SynTreeClass *&type ) const; |
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| 56 | template< typename SynTreeClass > int applyFree( SynTreeClass *&type ) const; |
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| 57 | void makeSubstitution( TypeSubstitution &result ) const; |
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| 58 | bool isEmpty() const { return env.empty(); } |
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| 59 | void print( std::ostream &os, int indent = 0 ) const; |
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| 60 | void combine( const TypeEnvironment &second, Type *(*combineFunc)( Type*, Type* ) ); |
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| 61 | void simpleCombine( const TypeEnvironment &second ); |
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| 62 | void extractOpenVars( OpenVarSet &openVars ) const; |
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| 63 | TypeEnvironment *clone() const { return new TypeEnvironment( *this ); } |
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[51b7345] | 64 | |
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[a32b204] | 65 | typedef std::list< EqvClass >::iterator iterator; |
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| 66 | iterator begin() { return env.begin(); } |
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| 67 | iterator end() { return env.end(); } |
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| 68 | typedef std::list< EqvClass >::const_iterator const_iterator; |
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| 69 | const_iterator begin() const { return env.begin(); } |
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| 70 | const_iterator end() const { return env.end(); } |
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| 71 | private: |
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| 72 | std::list< EqvClass > env; |
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| 73 | std::list< EqvClass >::iterator internal_lookup( const std::string &var ); |
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| 74 | }; |
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[51b7345] | 75 | |
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[a32b204] | 76 | template< typename SynTreeClass > |
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| 77 | int TypeEnvironment::apply( SynTreeClass *&type ) const { |
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| 78 | TypeSubstitution sub; |
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| 79 | makeSubstitution( sub ); |
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| 80 | return sub.apply( type ); |
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| 81 | } |
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[51b7345] | 82 | |
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[a32b204] | 83 | template< typename SynTreeClass > |
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| 84 | int TypeEnvironment::applyFree( SynTreeClass *&type ) const { |
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| 85 | TypeSubstitution sub; |
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| 86 | makeSubstitution( sub ); |
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| 87 | return sub.applyFree( type ); |
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| 88 | } |
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[51b7345] | 89 | } // namespace ResolvExpr |
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| 90 | |
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[a32b204] | 91 | #endif // TYPEENVIRONMENT_H */ |
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| 92 | |
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| 93 | // Local Variables: // |
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| 94 | // tab-width: 4 // |
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| 95 | // mode: c++ // |
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| 96 | // compile-command: "make install" // |
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| 97 | // End: // |
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