source: src/GenPoly/GenPoly.cc@ 5e92fee

ADT aaron-thesis arm-eh ast-experimental cleanup-dtors ctor deferred_resn demangler enum forall-pointer-decay gc_noraii jacob/cs343-translation jenkins-sandbox memory new-ast new-ast-unique-expr new-env no_list persistent-indexer pthread-emulation qualifiedEnum resolv-new string with_gc
Last change on this file since 5e92fee was f8b961b, checked in by Aaron Moss <a3moss@…>, 10 years ago

Documentation improvements

  • Property mode set to 100644
File size: 3.1 KB
Line 
1//
2// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
3//
4// The contents of this file are covered under the licence agreement in the
5// file "LICENCE" distributed with Cforall.
6//
7// GenPoly.cc --
8//
9// Author : Richard C. Bilson
10// Created On : Mon May 18 07:44:20 2015
11// Last Modified By : Rob Schluntz
12// Last Modified On : Tue Nov 24 15:23:08 2015
13// Update Count : 11
14//
15
16#include "GenPoly.h"
17#include "SynTree/Type.h"
18
19#include <iostream>
20using namespace std;
21
22namespace GenPoly {
23 /// A function needs an adapter if it returns a polymorphic value or if any of its
24 /// parameters have polymorphic type
25 bool needsAdapter( FunctionType *adaptee, const TyVarMap &tyVars ) {
26 if ( ! adaptee->get_returnVals().empty() && isPolyVal( adaptee->get_returnVals().front()->get_type(), tyVars ) ) {
27 return true;
28 } // if
29 for ( std::list< DeclarationWithType* >::const_iterator innerArg = adaptee->get_parameters().begin(); innerArg != adaptee->get_parameters().end(); ++innerArg ) {
30 if ( isPolyVal( (*innerArg)->get_type(), tyVars ) ) {
31 return true;
32 } // if
33 } // for
34 return false;
35 }
36
37 bool isPolyRet( FunctionType *function, std::string &name, const TyVarMap &otherTyVars ) {
38 bool doTransform = false;
39 if ( ! function->get_returnVals().empty() ) {
40 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType *>( function->get_returnVals().front()->get_type() ) ) {
41
42 // figure out if the return type is specified by a type parameter
43 for ( std::list< TypeDecl *>::const_iterator tyVar = function->get_forall().begin(); tyVar != function->get_forall().end(); ++tyVar ) {
44 if ( (*tyVar)->get_name() == typeInst->get_name() ) {
45 doTransform = true;
46 name = typeInst->get_name();
47 break;
48 } // if
49 } // for
50 if ( ! doTransform && otherTyVars.find( typeInst->get_name() ) != otherTyVars.end() ) {
51 doTransform = true;
52 } // if
53 } // if
54 } // if
55 return doTransform;
56 }
57
58 bool isPolyRet( FunctionType *function, std::string &name ) {
59 TyVarMap dummyTyVars;
60 return isPolyRet( function, name, dummyTyVars );
61 }
62
63 bool isPolyRet( FunctionType *function, const TyVarMap &otherTyVars ) {
64 std::string dummyString;
65 return isPolyRet( function, dummyString, otherTyVars );
66 }
67
68 bool isPolyVal( Type *type, const TyVarMap &tyVars ) {
69 if ( TypeInstType *typeInst = dynamic_cast< TypeInstType * >( type ) ) {
70 if ( tyVars.find( typeInst->get_name() ) != tyVars.end() ) {
71 return true;
72 } // if
73 } // if
74 return false;
75 }
76
77 bool isPolyObj( Type *type, const TyVarMap &tyVars ) {
78 if ( isPolyVal( type, tyVars ) ) {
79 return true;
80 } else if ( PointerType *pt = dynamic_cast<PointerType*>( type ) ) {
81 return isPolyObj( pt->get_base(), tyVars );
82 } else {
83 return false;
84 }
85 }
86
87 void printTyVarMap( std::ostream &os, const TyVarMap &tyVarMap ) {
88 for ( TyVarMap::const_iterator i = tyVarMap.begin(); i != tyVarMap.end(); ++i ) {
89 os << i->first << " (" << i->second << ") ";
90 } // for
91 os << std::endl;
92 }
93} // namespace GenPoly
94
95// Local Variables: //
96// tab-width: 4 //
97// mode: c++ //
98// compile-command: "make install" //
99// End: //
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