[51587aa] | 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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[01aeade] | 7 | // GenPoly.cc -- |
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[51587aa] | 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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[cf16f94] | 11 | // Last Modified By : Peter A. Buhr |
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[4389966] | 12 | // Last Modified On : Tue Dec 15 16:11:18 2015 |
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| 13 | // Update Count : 13 |
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[51587aa] | 14 | // |
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[51b7345] | 15 | |
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| 16 | #include "GenPoly.h" |
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[ffad73a] | 17 | |
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| 18 | #include "SymTab/Mangler.h" |
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| 19 | #include "SynTree/Expression.h" |
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[51b7345] | 20 | #include "SynTree/Type.h" |
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| 21 | |
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[b1a6d6b] | 22 | #include <iostream> |
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| 23 | using namespace std; |
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[51b7345] | 24 | |
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| 25 | namespace GenPoly { |
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[e56cfdb0] | 26 | bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) { |
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[ffad73a] | 27 | if ( ! adaptee->get_returnVals().empty() && isPolyType( adaptee->get_returnVals().front()->get_type(), tyVars ) ) { |
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[e56cfdb0] | 28 | return true; |
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| 29 | } // if |
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| 30 | for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); innerArg != adaptee->get_parameters().end(); ++innerArg ) { |
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[ffad73a] | 31 | if ( isPolyType( (*innerArg)->get_type(), tyVars ) ) { |
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[e56cfdb0] | 32 | return true; |
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| 33 | } // if |
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| 34 | } // for |
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| 35 | return false; |
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| 36 | } |
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| 37 | |
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| 38 | bool isPolyRet( FunctionType *function, std::string &name, const TyVarMap &otherTyVars ) { |
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| 39 | bool doTransform = false; |
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| 40 | if ( ! function->get_returnVals().empty() ) { |
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| 41 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( function->get_returnVals().front()->get_type() ) ) { |
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| 42 | |
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| 43 | // figure out if the return type is specified by a type parameter |
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| 44 | for ( std::list< TypeDecl *>::const_iterator tyVar = function->get_forall().begin(); tyVar != function->get_forall().end(); ++tyVar ) { |
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| 45 | if ( (*tyVar)->get_name() == typeInst->get_name() ) { |
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| 46 | doTransform = true; |
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| 47 | name = typeInst->get_name(); |
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| 48 | break; |
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| 49 | } // if |
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| 50 | } // for |
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| 51 | if ( ! doTransform && otherTyVars.find( typeInst->get_name() ) != otherTyVars.end() ) { |
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| 52 | doTransform = true; |
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| 53 | } // if |
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| 54 | } // if |
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| 55 | } // if |
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| 56 | return doTransform; |
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| 57 | } |
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| 58 | |
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| 59 | bool isPolyRet( FunctionType *function, std::string &name ) { |
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| 60 | TyVarMap dummyTyVars; |
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| 61 | return isPolyRet( function, name, dummyTyVars ); |
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[01aeade] | 62 | } |
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[51b7345] | 63 | |
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[e56cfdb0] | 64 | bool isPolyRet( FunctionType *function, const TyVarMap &otherTyVars ) { |
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| 65 | std::string dummyString; |
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| 66 | return isPolyRet( function, dummyString, otherTyVars ); |
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[01aeade] | 67 | } |
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[b1a6d6b] | 68 | |
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[ffad73a] | 69 | namespace { |
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[0f889a77] | 70 | /// Checks a parameter list for polymorphic parameters; will substitute according to env if present |
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| 71 | bool hasPolyParams( std::list< Expression* >& params, const TypeSubstitution *env ) { |
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| 72 | for ( std::list< Expression* >::iterator param = params.begin(); param != params.end(); ++param ) { |
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| 73 | TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param ); |
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| 74 | assert(paramType && "Aggregate parameters should be type expressions"); |
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| 75 | if ( isPolyType( paramType->get_type(), env ) ) return true; |
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| 76 | } |
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| 77 | return false; |
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| 78 | } |
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| 79 | |
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| 80 | /// Checks a parameter list for polymorphic parameters from tyVars; will substitute according to env if present |
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[ffad73a] | 81 | bool hasPolyParams( std::list< Expression* >& params, const TyVarMap &tyVars, const TypeSubstitution *env ) { |
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| 82 | for ( std::list< Expression* >::iterator param = params.begin(); param != params.end(); ++param ) { |
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| 83 | TypeExpr *paramType = dynamic_cast< TypeExpr* >( *param ); |
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| 84 | assert(paramType && "Aggregate parameters should be type expressions"); |
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| 85 | if ( isPolyType( paramType->get_type(), tyVars, env ) ) return true; |
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| 86 | } |
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| 87 | return false; |
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| 88 | } |
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| 89 | } |
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[0f889a77] | 90 | |
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| 91 | Type *isPolyType( Type *type, const TypeSubstitution *env ) { |
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| 92 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) { |
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| 93 | if ( env ) { |
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| 94 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 95 | return isPolyType( newType, env ); |
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| 96 | } // if |
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| 97 | } // if |
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| 98 | return type; |
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| 99 | } else if ( StructInstType *structType = dynamic_cast< StructInstType* >( type ) ) { |
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| 100 | if ( hasPolyParams( structType->get_parameters(), env ) ) return type; |
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| 101 | } else if ( UnionInstType *unionType = dynamic_cast< UnionInstType* >( type ) ) { |
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| 102 | if ( hasPolyParams( unionType->get_parameters(), env ) ) return type; |
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| 103 | } |
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| 104 | return 0; |
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| 105 | } |
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[ffad73a] | 106 | |
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| 107 | Type *isPolyType( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) { |
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[e56cfdb0] | 108 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) { |
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[ffad73a] | 109 | if ( env ) { |
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| 110 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 111 | return isPolyType( newType, tyVars, env ); |
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[0f889a77] | 112 | } // if |
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[01aeade] | 113 | } // if |
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[ffad73a] | 114 | if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) { |
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| 115 | return type; |
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[0f889a77] | 116 | } |
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[ffad73a] | 117 | } else if ( StructInstType *structType = dynamic_cast< StructInstType* >( type ) ) { |
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| 118 | if ( hasPolyParams( structType->get_parameters(), tyVars, env ) ) return type; |
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| 119 | } else if ( UnionInstType *unionType = dynamic_cast< UnionInstType* >( type ) ) { |
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| 120 | if ( hasPolyParams( unionType->get_parameters(), tyVars, env ) ) return type; |
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| 121 | } |
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| 122 | return 0; |
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[01aeade] | 123 | } |
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[b1a6d6b] | 124 | |
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[0f889a77] | 125 | Type *isPolyPtr( Type *type, const TypeSubstitution *env ) { |
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| 126 | if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) { |
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| 127 | return isPolyType( ptr->get_base(), env ); |
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| 128 | } else if ( env ) { |
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| 129 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) { |
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| 130 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 131 | return isPolyPtr( newType, env ); |
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| 132 | } // if |
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| 133 | } // if |
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| 134 | } // if |
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| 135 | return 0; |
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| 136 | } |
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| 137 | |
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[ffad73a] | 138 | Type *isPolyPtr( Type *type, const TyVarMap &tyVars, const TypeSubstitution *env ) { |
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| 139 | if ( PointerType *ptr = dynamic_cast< PointerType *>( type ) ) { |
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| 140 | return isPolyType( ptr->get_base(), tyVars, env ); |
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| 141 | } else if ( env ) { |
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| 142 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( type ) ) { |
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| 143 | if ( Type *newType = env->lookup( typeInst->get_name() ) ) { |
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| 144 | return isPolyPtr( newType, tyVars, env ); |
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| 145 | } // if |
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| 146 | } // if |
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| 147 | } // if |
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| 148 | return 0; |
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[bdf1954] | 149 | } |
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| 150 | |
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[01aeade] | 151 | void printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) { |
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| 152 | for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) { |
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| 153 | os << i->first << " (" << i->second << ") "; |
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| 154 | } // for |
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| 155 | os << std::endl; |
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| 156 | } |
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[ffad73a] | 157 | |
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| 158 | std::string sizeofName( Type *ty ) { |
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| 159 | return std::string( "_sizeof_" ) + SymTab::Mangler::mangle( ty, false, false ); |
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| 160 | } |
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| 161 | |
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| 162 | std::string alignofName( Type *ty ) { |
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| 163 | return std::string( "_alignof_" ) + SymTab::Mangler::mangle( ty, false, false ); |
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| 164 | } |
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[51b7345] | 165 | } // namespace GenPoly |
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[01aeade] | 166 | |
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[51587aa] | 167 | // Local Variables: // |
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| 168 | // tab-width: 4 // |
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| 169 | // mode: c++ // |
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| 170 | // compile-command: "make install" // |
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| 171 | // End: // |
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