Rcpp Version 0.12.12
Reference.h
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1 // -*- mode: C++; c-indent-level: 4; c-basic-offset: 4; indent-tabs-mode: nil; -*-
2 //
3 // Reference.h: Rcpp R/C++ interface class library -- Reference class objects
4 //
5 // Copyright (C) 2010 - 2015 Dirk Eddelbuettel and Romain Francois
6 //
7 // This file is part of Rcpp.
8 //
9 // Rcpp is free software: you can redistribute it and/or modify it
10 // under the terms of the GNU General Public License as published by
11 // the Free Software Foundation, either version 2 of the License, or
12 // (at your option) any later version.
13 //
14 // Rcpp is distributed in the hope that it will be useful, but
15 // WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18 //
19 // You should have received a copy of the GNU General Public License
20 // along with Rcpp. If not, see <http://www.gnu.org/licenses/>.
21 
22 #ifndef Rcpp_Reference_h
23 #define Rcpp_Reference_h
24 
25 namespace Rcpp{
26 
30  RCPP_API_CLASS(Reference_Impl),
31  public FieldProxyPolicy<Reference_Impl<StoragePolicy> >
32  {
33  public:
34 
35  Reference_Impl() {}
36 
37  RCPP_GENERATE_CTOR_ASSIGN(Reference_Impl)
38 
39 
44  Reference_Impl(SEXP x) {
45  Storage::set__(x) ;
46  }
47 
48  Reference_Impl& operator=( SEXP other ) {
49  Storage::set__(other) ;
50  return *this ;
51  }
52 
59  Reference_Impl( const std::string& klass ) {
60  SEXP newSym = Rf_install("new");
61  Shield<SEXP> call( Rf_lang2( newSym, Rf_mkString( klass.c_str() ) ) );
62  Storage::set__( Rcpp_eval( call , Rcpp::internal::get_Rcpp_namespace()) );
63  }
64 
65  void update( SEXP x){
66  if( ! ::Rf_isS4(x) ) throw not_reference();
67  }
68  } ;
69 
70  typedef Reference_Impl<PreserveStorage> Reference;
71 
72 } // namespace Rcpp
73 
74 #endif
#define RCPP_GENERATE_CTOR_ASSIGN(__CLASS__)
Definition: interface.h:21
SEXP Rcpp_eval(SEXP expr, SEXP env)
Definition: Rcpp_eval.h:25
RCPP_API_CLASS(DottedPair_Impl)
attribute_hidden SEXP get_Rcpp_namespace()
Definition: routines.h:95
Rcpp API.
Definition: algo.h:28
void update(SEXP)
Definition: Environment.h:400
Reference_Impl< PreserveStorage > Reference
Definition: Reference.h:70