propertysystem.hh

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#ifndef OPM_PROPERTY_SYSTEM_HH
#define OPM_PROPERTY_SYSTEM_HH
 
#include <dune/common/classname.hh>
 
#include <cstring>
#include <ostream>
#include <tuple>
#include <type_traits>
 
namespace Opm {
namespace Properties {
 
struct UndefinedProperty {};
 
template <class TypeTag, class MyTypeTag>
struct Splices
{
     using type = std::tuple<>;
};
 
namespace Detail {
 
template<class P>
constexpr auto isDefinedProperty(int)
-> decltype(std::integral_constant<bool, !std::is_same<typename P::type, UndefinedProperty>::value>{})
{ return {}; }
 
template<class P>
constexpr std::true_type isDefinedProperty(...) { return {}; }
 
template<class T>
constexpr auto hasParentTypeTag(int)
-> decltype(std::declval<typename T::InheritsFrom>(), std::true_type{})
{ return {}; }
 
template<class T>
constexpr std::false_type hasParentTypeTag(...) { return {}; }
 
template<class ...Tuples>
using ConCatTuples = decltype(std::tuple_cat(std::declval<Tuples>()...));
 
template<class TypeTag, template<class,class> class Property, class TTagList>
struct GetDefined;
 
template<class TypeTag, template<class,class> class Property, class TTagList, class Enable>
struct GetNextTypeTag;
 
template<class TypeTag, template<class,class> class Property, class LastTypeTag>
struct GetNextTypeTag<TypeTag, Property, std::tuple<LastTypeTag>, std::enable_if_t<hasParentTypeTag<LastTypeTag>(int{}), void>>
{ using type = typename GetDefined<TypeTag, Property, typename LastTypeTag::InheritsFrom>::type; };
 
template<class TypeTag, template<class,class> class Property, class LastTypeTag>
struct GetNextTypeTag<TypeTag, Property, std::tuple<LastTypeTag>, std::enable_if_t<!hasParentTypeTag<LastTypeTag>(int{}), void>>
{ using type = UndefinedProperty; };
 
template<class TypeTag, template<class,class> class Property, class FirstTypeTag, class ...Args>
struct GetNextTypeTag<TypeTag, Property, std::tuple<FirstTypeTag, Args...>, std::enable_if_t<hasParentTypeTag<FirstTypeTag>(int{}), void>>
{ using type = typename GetDefined<TypeTag, Property, ConCatTuples<typename FirstTypeTag::InheritsFrom, std::tuple<Args...>>>::type; };
 
template<class TypeTag, template<class,class> class Property, class FirstTypeTag, class ...Args>
struct GetNextTypeTag<TypeTag, Property, std::tuple<FirstTypeTag, Args...>, std::enable_if_t<!hasParentTypeTag<FirstTypeTag>(int{}), void>>
{ using type = typename GetDefined<TypeTag, Property, std::tuple<Args...>>::type; };
 
template<class TypeTag, template<class,class> class Property, class LastTypeTag>
struct GetDefined<TypeTag, Property, std::tuple<LastTypeTag>>
{
// For clang, the following alias triggers compiler warnings if instantiated
// from something like `GetPropType<..., DeprecatedProperty>`, even if that is
// contained in a diagnostic pragma construct that should prevent these warnings.
// As a workaround, also add the pragmas around this line.
// See the discussion in MR 1647 for more details.
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif
     using LastType = Property<TypeTag, LastTypeTag>;
#ifdef __clang__
#pragma clang diagnostic pop
#endif
     using type = std::conditional_t<isDefinedProperty<LastType>(int{}), LastType,
                                     typename GetNextTypeTag<TypeTag, Property, std::tuple<LastTypeTag>, void>::type>;
};
 
template<class TypeTag, template<class,class> class Property, class FirstTypeTag, class ...Args>
struct GetDefined<TypeTag, Property, std::tuple<FirstTypeTag, Args...>>
{
// See the comment above.
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif
     using FirstType = Property<TypeTag, FirstTypeTag>;
#ifdef __clang__
#pragma clang diagnostic pop
#endif
     using type = std::conditional_t<isDefinedProperty<FirstType>(int{}), FirstType,
                                     typename GetNextTypeTag<TypeTag, Property, std::tuple<FirstTypeTag, Args...>, void>::type>;
};
 
 
template<class TypeTag, class TTagList>
struct GetDefinedSplice;
 
template<class TypeTag, class TTagList, class Enable>
struct GetNextSpliceTypeTag;
 
template<class TypeTag, class LastTypeTag>
struct GetNextSpliceTypeTag<TypeTag, std::tuple<LastTypeTag>, std::enable_if_t<hasParentTypeTag<LastTypeTag>(int{}), void>>
{ using type = typename GetDefinedSplice<TypeTag, typename LastTypeTag::InheritsFrom>::type; };
 
template<class TypeTag, class LastTypeTag>
struct GetNextSpliceTypeTag<TypeTag, std::tuple<LastTypeTag>, std::enable_if_t<!hasParentTypeTag<LastTypeTag>(int{}), void>>
{ using type = std::tuple<>; };
 
template<class TypeTag, class FirstTypeTag, class ...Args>
struct GetNextSpliceTypeTag<TypeTag, std::tuple<FirstTypeTag, Args...>, std::enable_if_t<hasParentTypeTag<FirstTypeTag>(int{}), void>>
{ using type = typename GetDefinedSplice<TypeTag, ConCatTuples<typename FirstTypeTag::InheritsFrom, std::tuple<Args...>>>::type; };
 
template<class TypeTag, class FirstTypeTag, class ...Args>
struct GetNextSpliceTypeTag<TypeTag, std::tuple<FirstTypeTag, Args...>, std::enable_if_t<!hasParentTypeTag<FirstTypeTag>(int{}), void>>
{ using type = typename GetDefinedSplice<TypeTag, std::tuple<Args...>>::type; };
 
template<class S>
constexpr auto isDefinedSplice(int)
-> decltype(std::integral_constant<bool, !std::is_same<typename S::type, std::tuple<>>::value>{})
{ return {}; }
 
template<class S>
constexpr std::true_type isDefinedSplice(...) { return {}; }
 
template<class TypeTag, class LastTypeTag>
struct GetDefinedSplice<TypeTag, std::tuple<LastTypeTag>>
{
     using LastSplice = Splices<TypeTag, LastTypeTag>;
     using nexttuple = typename GetNextSpliceTypeTag<TypeTag,
                                                     ConCatTuples<
                                                         std::tuple<LastTypeTag>,
                                                         typename LastSplice::type
                                                     >,
                                                     void>::type;
 
     using type = std::conditional_t<isDefinedSplice<LastSplice>(int{}),
                                     ConCatTuples<nexttuple, typename LastSplice::type>,
                                     nexttuple>;
};
 
template<class TypeTag, class FirstTypeTag, class ...Args>
struct GetDefinedSplice<TypeTag, std::tuple<FirstTypeTag, Args...>>
{
     using FirstSplice = Splices<TypeTag, FirstTypeTag>;
     using nexttuple = typename GetNextSpliceTypeTag<TypeTag,
                                                     ConCatTuples<
                                                         std::tuple<FirstTypeTag, Args...>,
                                                         typename FirstSplice::type
                                                     >,
                                                     void>::type;
 
     using type = std::conditional_t<isDefinedSplice<FirstSplice>(int{}),
                                     ConCatTuples<typename FirstSplice::type, nexttuple>,
                                     nexttuple>;
};
 
template<class TypeTag, template<class,class> class Property>
struct GetPropImpl
{
    using tuple = typename Detail::GetDefinedSplice<TypeTag, std::tuple<TypeTag>>::type;
    using type = typename Detail::GetDefined<TypeTag,
                                             Property,
                                             ConCatTuples<std::tuple<TypeTag>, tuple>
                                            >::type;
    static_assert(!std::is_same<type, UndefinedProperty>::value, "Property is undefined!");
};
 
template<class TypeTag, class SpliceTypeTag, template<class,class> class Property>
struct GetSplicePropImpl
{
    using type = typename Detail::GetDefined<TypeTag, Property, std::tuple<TypeTag, SpliceTypeTag>>::type;
    static_assert(!std::is_same<type, std::tuple<>>::value, "Splice is undefined!");
};
 
template <typename, class = void>
struct has_name : public std::false_type {};
 
template <typename T>
struct has_name<T, decltype((void)T::name, void())>
: public std::true_type {};
 
} // end namespace Detail
} // end namespace Property
 
template<class TypeTag, template<class,class> class Property>
using GetProp = typename Properties::Detail::GetPropImpl<TypeTag, Property>::type;
 
// See the comment above.
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif
template<class TypeTag, template<class,class> class Property>
using GetPropType = typename Properties::Detail::GetPropImpl<TypeTag, Property>::type::type;
 
template<class TypeTag, class SpliceTypeTag, template<class,class> class Property>
using GetSplicePropType = typename Properties::Detail::GetSplicePropImpl<TypeTag, SpliceTypeTag, Property>::type::type;
 
template<class TypeTag, template<class,class> class Property>
constexpr auto getPropValue() { return Properties::Detail::GetPropImpl<TypeTag, Property>::type::value; }
 
template<class TypeTag, template<class,class> class Property>
auto getPropName()
{
    using type = typename Properties::Detail::GetPropImpl<TypeTag,Property>::type;
    if constexpr (Properties::Detail::has_name<type>::value) {
        return Properties::Detail::GetPropImpl<TypeTag, Property>::type::name;
    } else {
        std::string paramName = Dune::className<type>();
        paramName.replace(0, std::strlen("Opm::Properties::"), "");
        const auto pos = paramName.find_first_of('<');
        paramName.erase(pos);
        return paramName;
    }
}
 
#ifdef __clang__
#pragma clang diagnostic pop
#endif
 
namespace Properties {
template <class TypeTag>
void printValues(std::ostream& os)
{
    os <<
    "The eWoms property system was compiled with the macro\n"
    "NO_PROPERTY_INTROSPECTION defined.\n"
    "No diagnostic messages this time, sorry.\n";
}
}
 
} // end namespace Opm
 
#endif