| 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 | // GenPoly.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 : Peter A. Buhr
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| 12 | // Last Modified On : Tue May 19 07:37:46 2015
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| 13 | // Update Count : 1
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| 14 | //
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| 15 |
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| 16 | #include "GenPoly.h"
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| 17 | #include "SynTree/Type.h"
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| 18 |
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| 19 | #include <iostream>
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| 20 | using namespace std;
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| 21 |
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| 22 | namespace GenPoly {
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| 23 | // interface functions
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| 24 | bool isPolyVal( Type *type, const TyVarMap &tyVars ) {
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| 25 | return isPolyVal( type, tyVars, false );
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| 26 | }
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| 27 |
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| 28 | bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) {
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| 29 | return needsAdapter( adaptee, tyVars, false );
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| 30 | }
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| 31 |
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| 32 | bool isPolyVal( Type *type, const TyVarMap &tyVars, bool considerAllTyVars ) {
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| 33 | if ( TypeInstType *typeInst = dynamic_cast< TypeInstType* >( type ) ) {
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| 34 | if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
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| 35 | return true;
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| 36 | } // if
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| 37 | return considerAllTyVars;
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| 38 | } // if
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| 39 | return false;
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| 40 | }
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| 41 |
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| 42 | // A function needs an adapter if it returns a polymorphic value or if any of its
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| 43 | // parameters have polymorphic type
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| 44 | bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars, bool considerAllTyVars ) {
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| 45 | bool needsAdapter = false;
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| 46 | if ( ! adaptee->get_returnVals().empty() && isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars, considerAllTyVars ) ) {
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| 47 | needsAdapter = true;
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| 48 | } // if
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| 49 | for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); ! needsAdapter && innerArg != adaptee->get_parameters().end(); ++innerArg ) {
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| 50 | if ( isPolyVal( (*innerArg)->get_type(), tyVars, considerAllTyVars ) ) {
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| 51 | needsAdapter = true;
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| 52 | } // if
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| 53 | } // for
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| 54 | return needsAdapter;
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| 55 | }
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| 56 |
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| 57 | void printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) {
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| 58 | for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) {
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| 59 | os << i->first << " (" << i->second << ") ";
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| 60 | } // for
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| 61 | os << std::endl;
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| 62 | }
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| 63 | } // namespace GenPoly
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| 64 |
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| 65 | // Local Variables: //
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| 66 | // tab-width: 4 //
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| 67 | // mode: c++ //
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| 68 | // compile-command: "make install" //
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| 69 | // End: //
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