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 | // FindFunction.cc -- |
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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 : Rob Schluntz |
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12 | // Last Modified On : Fri Feb 05 12:22:20 2016 |
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13 | // Update Count : 6 |
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14 | // |
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15 | |
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16 | #include "FindFunction.h" |
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17 | |
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18 | #include <utility> // for pair |
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19 | |
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20 | #include "Common/SemanticError.h" // for SemanticError |
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21 | #include "GenPoly/ErasableScopedMap.h" // for ErasableScopedMap<>::iterator |
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22 | #include "GenPoly/GenPoly.h" // for TyVarMap |
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23 | #include "ScrubTyVars.h" // for ScrubTyVars |
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24 | #include "SynTree/Declaration.h" // for DeclarationWithType, TypeDecl |
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25 | #include "SynTree/Mutator.h" // for Mutator, mutateAll |
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26 | #include "SynTree/Type.h" // for FunctionType, Type, Type::For... |
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27 | |
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28 | namespace GenPoly { |
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29 | class FindFunction : public Mutator { |
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30 | public: |
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31 | FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ); |
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32 | |
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33 | virtual Type *mutate( FunctionType *functionType ); |
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34 | virtual Type *mutate( PointerType *pointerType ); |
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35 | private: |
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36 | void handleForall( const Type::ForallList &forall ); |
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37 | |
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38 | std::list< FunctionType* > &functions; |
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39 | TyVarMap tyVars; |
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40 | bool replaceMode; |
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41 | FindFunctionPredicate predicate; |
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42 | }; |
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43 | |
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44 | void findFunction( Type *type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) { |
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45 | FindFunction finder( functions, tyVars, false, predicate ); |
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46 | type->acceptMutator( finder ); |
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47 | } |
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48 | |
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49 | void findAndReplaceFunction( Type *&type, std::list< FunctionType* > &functions, const TyVarMap &tyVars, FindFunctionPredicate predicate ) { |
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50 | FindFunction finder( functions, tyVars, true, predicate ); |
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51 | type = type->acceptMutator( finder ); |
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52 | } |
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53 | |
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54 | FindFunction::FindFunction( std::list< FunctionType* > &functions, const TyVarMap &tyVars, bool replaceMode, FindFunctionPredicate predicate ) |
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55 | : functions( functions ), tyVars( tyVars ), replaceMode( replaceMode ), predicate( predicate ) { |
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56 | } |
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57 | |
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58 | void FindFunction::handleForall( const Type::ForallList &forall ) { |
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59 | for ( Type::ForallList::const_iterator i = forall.begin(); i != forall.end(); ++i ) { |
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60 | TyVarMap::iterator var = tyVars.find( (*i)->get_name() ); |
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61 | if ( var != tyVars.end() ) { |
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62 | tyVars.erase( var->first ); |
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63 | } // if |
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64 | } // for |
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65 | } |
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66 | |
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67 | Type * FindFunction::mutate( FunctionType *functionType ) { |
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68 | tyVars.beginScope(); |
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69 | handleForall( functionType->get_forall() ); |
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70 | mutateAll( functionType->get_returnVals(), *this ); |
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71 | Type *ret = functionType; |
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72 | if ( predicate( functionType, tyVars ) ) { |
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73 | functions.push_back( functionType ); |
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74 | if ( replaceMode ) { |
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75 | // replace type parameters in function type with void* |
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76 | ret = ScrubTyVars::scrub( functionType->clone(), tyVars ); |
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77 | } // if |
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78 | } // if |
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79 | tyVars.endScope(); |
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80 | return ret; |
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81 | } |
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82 | |
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83 | Type * FindFunction::mutate( PointerType *pointerType ) { |
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84 | tyVars.beginScope(); |
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85 | handleForall( pointerType->get_forall() ); |
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86 | Type *ret = Mutator::mutate( pointerType ); |
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87 | tyVars.endScope(); |
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88 | return ret; |
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89 | } |
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90 | } // namespace GenPoly |
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91 | |
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92 | // Local Variables: // |
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93 | // tab-width: 4 // |
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94 | // mode: c++ // |
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95 | // compile-command: "make install" // |
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96 | // End: // |
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