cereal
A C++11 library for serialization
base_class.hpp
Go to the documentation of this file.
1 
4 /*
5  Copyright (c) 2014, Randolph Voorhies, Shane Grant
6  All rights reserved.
7 
8  Redistribution and use in source and binary forms, with or without
9  modification, are permitted provided that the following conditions are met:
10  * Redistributions of source code must retain the above copyright
11  notice, this list of conditions and the following disclaimer.
12  * Redistributions in binary form must reproduce the above copyright
13  notice, this list of conditions and the following disclaimer in the
14  documentation and/or other materials provided with the distribution.
15  * Neither the name of cereal nor the
16  names of its contributors may be used to endorse or promote products
17  derived from this software without specific prior written permission.
18 
19  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22  DISCLAIMED. IN NO EVENT SHALL RANDOLPH VOORHIES OR SHANE GRANT BE LIABLE FOR ANY
23  DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 #ifndef CEREAL_TYPES_BASE_CLASS_HPP_
31 #define CEREAL_TYPES_BASE_CLASS_HPP_
32 
35 
36 namespace cereal
37 {
38  namespace base_class_detail
39  {
42 
43  template <class Base, class Derived, bool IsPolymorphic = std::is_polymorphic<Base>::value>
45  {
46  static void bind()
47  { }
48  };
49 
51 
52  template <class Base, class Derived>
53  struct RegisterPolymorphicBaseClass<Base, Derived, true>
54  {
55  static void bind()
57  };
58  }
59 
61 
98  template<class Base>
100  {
101  template<class Derived>
102  base_class(Derived const * derived) :
103  base_ptr(const_cast<Base*>(static_cast<Base const *>(derived)))
104  {
105  static_assert( std::is_base_of<Base, Derived>::value, "Can only use base_class on a valid base class" );
107  }
108 
109  Base * base_ptr;
110  };
111 
113 
185  template<class Base>
187  {
188  template<class Derived>
189  virtual_base_class(Derived const * derived) :
190  base_ptr(const_cast<Base*>(static_cast<Base const *>(derived)))
191  {
192  static_assert( std::is_base_of<Base, Derived>::value, "Can only use virtual_base_class on a valid base class" );
194  }
195 
196  Base * base_ptr;
197  };
198 
199 } // namespace cereal
200 
201 #endif // CEREAL_TYPES_BASE_CLASS_HPP_
Casts a derived class to its virtual base class in a way that allows cereal to track inheritance...
Definition: base_class.hpp:186
Common base type for base class casting.
Definition: traits.hpp:1145
static PolymorphicCaster const * bind()
Performs registration (binding) between Base and Derived.
Definition: polymorphic_impl.hpp:403
Internal type trait support.
Casts a derived class to its non-virtual base class in a way that safely supports abstract classes...
Definition: base_class.hpp:99
Definition: access.hpp:40
Internal polymorphism support forward declarations.