generic-library/ChaiScript
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Use std::ref to make free functions callable

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This commit is contained in:
Jason Turner
2015-05-22 10:28:28 -06:00
parent 630c618ae7
commit 48933bc32c
4 changed files with 20 additions and 13 deletions
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12
include/chaiscript/dispatchkit/callable_traits.hpp
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@@ -14,22 +14,26 @@ namespace chaiscript {
template<typename T>
struct Function_Signature
{
template<typename Ret, typename ... Param>
static Ret deduce_ret_type(Function_Signature<Ret (Param...)> *);
typedef T Signature;
typedef Function_Signature<T> *ptr_type;
typedef decltype(deduce_ret_type(ptr_type(nullptr))) Return_Type;
};
template<typename T>
struct Callable_Traits
{
template<typename Ret, typename ... Param>
static Ret deduce_ret_type(Ret (T::*)(Param...) const);
template<typename Ret, typename ... Param>
static Function_Signature<Ret (Param...)> deduce_sig_type(Ret (T::*)(Param...) const);
typedef decltype(deduce_ret_type(&T::operator())) Return_Type;
typedef typename decltype(deduce_sig_type(&T::operator()))::Signature Signature;
typedef decltype(deduce_sig_type(&T::operator())) Signature_Object;
typedef typename Signature_Object::Return_Type Return_Type;
};
}
}