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|
//------------------------------------------------------------------------------
/*
https://github.com/vinniefalco/LuaBridge
Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com>
License: The MIT License (http://www.opensource.org/licenses/mit-license.php)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
//==============================================================================
#ifndef LUABRIDGE_TYPEINFO_HEADER
#define LUABRIDGE_TYPEINFO_HEADER
//------------------------------------------------------------------------------
/**
Container traits.
Unspecialized ContainerTraits has the isNotContainer typedef for SFINAE.
All user defined containers must supply an appropriate specialization for
ContinerTraits (without the typedef isNotContainer). The containers that
come with LuaBridge also come with the appropriate ContainerTraits
specialization. See the corresponding declaration for details.
A specialization of ContainerTraits for some generic type ContainerType
looks like this:
template <class T>
struct ContainerTraits <ContainerType <T> >
{
typedef typename T Type;
static T* get (ContainerType <T> const& c)
{
return c.get (); // Implementation-dependent on ContainerType
}
};
*/
template <class T>
struct ContainerTraits
{
typedef bool isNotContainer;
};
//------------------------------------------------------------------------------
/**
Type traits.
Specializations return information about a type.
*/
struct TypeTraits
{
/** Determine if type T is a container.
To be considered a container, there must be a specialization of
ContainerTraits with the required fields.
*/
template <typename T>
class isContainer
{
private:
typedef char yes[1]; // sizeof (yes) == 1
typedef char no [2]; // sizeof (no) == 2
template <typename C>
static no& test (typename C::isNotContainer*);
template <typename>
static yes& test (...);
public:
static const bool value = sizeof (test <ContainerTraits <T> >(0)) == sizeof (yes);
};
/** Determine if T is an enum */
template <typename T>
class isEnum
{
public:
//static const bool value = std::is_enum<T>::value; // C++11
static const bool value = boost::is_enum<T>::value;
};
/** Determine if T is const qualified.
*/
/** @{ */
template <class T>
struct isConst
{
static bool const value = false;
};
template <class T>
struct isConst <T const>
{
static bool const value = true;
};
/** @} */
/** Remove the const qualifier from T.
*/
/** @{ */
template <class T>
struct removeConst
{
typedef T Type;
};
template <class T>
struct removeConst <T const>
{
typedef T Type;
};
/**@}*/
};
#endif
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