{

caller_py_function_impl(Caller const& caller)

: m_caller(caller)

{}

PyObject* operator()(PyObject* args, PyObject* kw)

{

return m_caller(args, kw);

}

virtual unsigned min_arity() const

{

return m_caller.min_arity();

}

virtual python::detail::py_func_sig_info signature() const

{

return m_caller.signature();

}

private:

Caller m_caller;

{

signature_py_function_impl(Caller const& caller)

: m_caller(caller)

{}

PyObject* operator()(PyObject* args, PyObject* kw)

{

return m_caller(args, kw);

}

virtual unsigned min_arity() const

{

return mpl::size<Sig>::value - 1;

}

virtual python::detail::py_func_sig_info signature() const

{

python::detail::signature_element const* sig = python::detail::signature<Sig>::elements();

python::detail::py_func_sig_info res = {sig, sig};

return res;

}

private:

Caller m_caller;

{

full_py_function_impl(Caller const& caller, unsigned min_arity, unsigned max_arity)

: m_caller(caller)

, m_min_arity(min_arity)

, m_max_arity(max_arity > min_arity ? max_arity : min_arity)

{}

PyObject* operator()(PyObject* args, PyObject* kw)

{

return m_caller(args, kw);

}

virtual unsigned min_arity() const

{

return m_min_arity;

}

virtual unsigned max_arity() const

{

return m_max_arity;

}

virtual python::detail::py_func_sig_info signature() const

{

python::detail::signature_element const* sig = python::detail::signature<Sig>::elements();

python::detail::py_func_sig_info res = {sig, sig};

return res;

}

private:

Caller m_caller;

unsigned m_min_arity;

unsigned m_max_arity;

{

template <class Caller>

py_function(Caller const& caller)

: m_impl(new caller_py_function_impl<Caller>(caller))

{}

template <class Caller, class Sig>

py_function(Caller const& caller, Sig)

: m_impl(new signature_py_function_impl<Caller, Sig>(caller))

{}

template <class Caller, class Sig>

py_function(Caller const& caller, Sig, int min_arity, int max_arity = 0)

: m_impl(new full_py_function_impl<Caller, Sig>(caller, min_arity, max_arity))

{}

py_function(py_function const& rhs)

#if defined(BOOST_NO_CXX11_SMART_PTR)

: m_impl(rhs.m_impl)

#else

: m_impl(std::move(rhs.m_impl))

#endif

{}

PyObject* operator()(PyObject* args, PyObject* kw) const

{

return (*m_impl)(args, kw);

}

unsigned min_arity() const

{

return m_impl->min_arity();

}

unsigned max_arity() const

{

return m_impl->max_arity();

}

python::detail::signature_element const* signature() const

{

return m_impl->signature().signature;

}

python::detail::signature_element const& get_return_type() const

{

return *m_impl->signature().ret;

}

private:

#if defined(BOOST_NO_CXX11_SMART_PTR)

mutable std::auto_ptr<py_function_impl_base> m_impl;

#else

mutable std::unique_ptr<py_function_impl_base> m_impl;

#endif