| 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 | // XXX.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 : |
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| 12 | // Last Modified On : |
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| 13 | // Update Count : 0 |
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| 14 | // |
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| 15 | /* |
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| 16 | * This file is part of the Cforall project |
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| 17 | * |
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| 18 | * $Id: GenPoly.cc,v 1.4 2005/08/29 20:14:13 rcbilson Exp $ |
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| 19 | * |
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| 20 | */ |
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| 21 | |
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| 22 | #include "GenPoly.h" |
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| 23 | #include "SynTree/Type.h" |
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| 24 | |
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| 25 | #include <iostream> |
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| 26 | using namespace std; |
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| 27 | |
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| 28 | namespace GenPoly { |
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| 29 | |
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| 30 | // interface functions |
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| 31 | bool isPolyVal( Type *type, const TyVarMap &tyVars ) { |
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| 32 | return isPolyVal( type, tyVars, false ); |
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| 33 | } |
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| 34 | |
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| 35 | bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) { |
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| 36 | return needsAdapter( adaptee, tyVars, false ); |
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| 37 | } |
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| 38 | |
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| 39 | bool |
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| 40 | isPolyVal( Type *type, const TyVarMap &tyVars, bool considerAllTyVars ) |
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| 41 | { |
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| 42 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType* >( type ) ) { |
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| 43 | if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) { |
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| 44 | return true; |
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| 45 | } |
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| 46 | return considerAllTyVars; |
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| 47 | } |
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| 48 | return false; |
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| 49 | } |
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| 50 | |
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| 51 | // A function needs an adapter if it returns a polymorphic value or if any of its |
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| 52 | // parameters have polymorphic type |
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| 53 | bool |
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| 54 | needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars, bool considerAllTyVars ) |
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| 55 | { |
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| 56 | bool needsAdapter = false; |
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| 57 | if ( ! adaptee->get_returnVals().empty() && isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars, considerAllTyVars ) ) { |
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| 58 | needsAdapter = true; |
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| 59 | } |
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| 60 | for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); ! needsAdapter && innerArg != adaptee->get_parameters().end(); ++innerArg ) { |
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| 61 | if ( isPolyVal( (*innerArg)->get_type(), tyVars, considerAllTyVars ) ) { |
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| 62 | needsAdapter = true; |
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| 63 | } |
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| 64 | } |
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| 65 | |
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| 66 | return needsAdapter; |
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| 67 | } |
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| 68 | |
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| 69 | void |
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| 70 | printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) |
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| 71 | { |
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| 72 | for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) { |
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| 73 | os << i->first << " (" << i->second << ") "; |
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| 74 | } |
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| 75 | os << std::endl; |
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| 76 | } |
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| 77 | |
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| 78 | } // namespace GenPoly |
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| 79 | // Local Variables: // |
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| 80 | // tab-width: 4 // |
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| 81 | // mode: c++ // |
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| 82 | // compile-command: "make install" // |
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| 83 | // End: // |
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