axmol/3rdparty/jni.hpp/include/jni/traits.hpp

35 lines
1.5 KiB
C++

#pragma once
#include <jni/types.hpp>
#include <type_traits>
namespace jni
{
template < class T > struct IsPrimitive : std::false_type {};
template <> struct IsPrimitive< jboolean > : std::true_type {};
template <> struct IsPrimitive< jbyte > : std::true_type {};
template <> struct IsPrimitive< jchar > : std::true_type {};
template <> struct IsPrimitive< jshort > : std::true_type {};
template <> struct IsPrimitive< jint > : std::true_type {};
template <> struct IsPrimitive< jlong > : std::true_type {};
template <> struct IsPrimitive< jfloat > : std::true_type {};
template <> struct IsPrimitive< jdouble > : std::true_type {};
template < class T > struct IsReference : std::false_type {};
template <> struct IsReference< jobject > : std::true_type {};
template <> struct IsReference< jclass > : std::true_type {};
template <> struct IsReference< jstring > : std::true_type {};
template <> struct IsReference< jthrowable > : std::true_type {};
template < class T > struct IsArray : std::false_type {};
template < class E > struct IsArray< jarray<E> > : std::true_type {};
template < class... > struct Conjunction : std::true_type {};
template < class B1 > struct Conjunction<B1> : B1 {};
template < class B1, class... Bn > struct Conjunction<B1, Bn...>
: std::conditional_t<bool(B1::value), Conjunction<Bn...>, B1> {};
template < class T > T& AsLvalue(T&& x) { return x; }
}